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-rw-r--r--Makefile.am6
-rwxr-xr-xautogen.sh25
-rw-r--r--configure.ac250
-rw-r--r--plugingui/Makefile.am61
-rw-r--r--plugingui/Makefile.am.plugingui50
-rw-r--r--plugingui/Makefile.mingw3267
-rw-r--r--plugingui/application.cc66
-rw-r--r--plugingui/application.h52
-rw-r--r--plugingui/button.cc157
-rw-r--r--plugingui/button.h80
-rw-r--r--plugingui/checkbox.cc115
-rw-r--r--plugingui/checkbox.h69
-rw-r--r--plugingui/colour.cc63
-rw-r--r--plugingui/colour.h51
-rw-r--r--plugingui/combobox.cc231
-rw-r--r--plugingui/combobox.h73
-rw-r--r--plugingui/directory.cc443
-rw-r--r--plugingui/directory.h93
-rw-r--r--plugingui/eventhandler.cc194
-rw-r--r--plugingui/eventhandler.h62
-rw-r--r--plugingui/filebrowser.cc268
-rw-r--r--plugingui/filebrowser.h75
-rw-r--r--plugingui/font.cc131
-rw-r--r--plugingui/font.h63
-rw-r--r--plugingui/guievent.h141
-rw-r--r--plugingui/image.cc119
-rw-r--r--plugingui/image.h59
-rw-r--r--plugingui/knob.cc188
-rw-r--r--plugingui/knob.h80
-rw-r--r--plugingui/label.cc57
-rw-r--r--plugingui/label.h51
-rw-r--r--plugingui/led.cc106
-rw-r--r--plugingui/led.h56
-rw-r--r--plugingui/lineedit.cc239
-rw-r--r--plugingui/lineedit.h86
-rw-r--r--plugingui/listbox.cc123
-rw-r--r--plugingui/listbox.h68
-rw-r--r--plugingui/listboxbasic.cc334
-rw-r--r--plugingui/listboxbasic.h101
-rw-r--r--plugingui/listboxthin.cc118
-rw-r--r--plugingui/listboxthin.h67
-rw-r--r--plugingui/lodepng/lodepng.cpp6260
-rw-r--r--plugingui/lodepng/lodepng.h1716
-rw-r--r--plugingui/nativewindow.h57
-rw-r--r--plugingui/nativewindow_pugl.cc212
-rw-r--r--plugingui/nativewindow_pugl.h72
-rw-r--r--plugingui/nativewindow_win32.cc400
-rw-r--r--plugingui/nativewindow_win32.h71
-rw-r--r--plugingui/nativewindow_x11.cc388
-rw-r--r--plugingui/nativewindow_x11.h72
-rw-r--r--plugingui/notifier.h149
-rw-r--r--plugingui/painter.cc488
-rw-r--r--plugingui/painter.h97
-rw-r--r--plugingui/pixelbuffer.cc180
-rw-r--r--plugingui/pixelbuffer.h91
-rw-r--r--plugingui/pluginconfig.cc63
-rw-r--r--plugingui/pluginconfig.h44
-rw-r--r--plugingui/plugingui.cc539
-rw-r--r--plugingui/plugingui.h107
-rw-r--r--plugingui/progressbar.cc108
-rw-r--r--plugingui/progressbar.h71
-rw-r--r--plugingui/rcgen.cc71
-rw-r--r--plugingui/resource.cc119
-rw-r--r--plugingui/resource.h53
-rw-r--r--plugingui/resource_data.cc3583
-rw-r--r--plugingui/resource_data.h38
-rw-r--r--plugingui/resources/bg.pngbin0 -> 1123 bytes
-rwxr-xr-xplugingui/resources/createrc.sh2
-rw-r--r--plugingui/resources/font.pngbin0 -> 4945 bytes
-rw-r--r--plugingui/resources/fontemboss.pngbin0 -> 10710 bytes
-rw-r--r--plugingui/resources/knob.pngbin0 -> 3597 bytes
-rw-r--r--plugingui/resources/logo.pngbin0 -> 14190 bytes
-rw-r--r--plugingui/resources/png_errorbin0 -> 2608 bytes
-rw-r--r--plugingui/resources/progress_back_c.pngbin0 -> 188 bytes
-rw-r--r--plugingui/resources/progress_back_l.pngbin0 -> 321 bytes
-rw-r--r--plugingui/resources/progress_back_r.pngbin0 -> 311 bytes
-rw-r--r--plugingui/resources/progress_front_blue_c.pngbin0 -> 219 bytes
-rw-r--r--plugingui/resources/progress_front_blue_l.pngbin0 -> 240 bytes
-rw-r--r--plugingui/resources/progress_front_blue_r.pngbin0 -> 245 bytes
-rw-r--r--plugingui/resources/progress_front_green_c.pngbin0 -> 215 bytes
-rw-r--r--plugingui/resources/progress_front_green_l.pngbin0 -> 241 bytes
-rw-r--r--plugingui/resources/progress_front_green_r.pngbin0 -> 241 bytes
-rw-r--r--plugingui/resources/progress_front_red_c.pngbin0 -> 209 bytes
-rw-r--r--plugingui/resources/progress_front_red_l.pngbin0 -> 229 bytes
-rw-r--r--plugingui/resources/progress_front_red_r.pngbin0 -> 229 bytes
-rw-r--r--plugingui/resources/pushbutton_b.pngbin0 -> 205 bytes
-rw-r--r--plugingui/resources/pushbutton_bl.pngbin0 -> 396 bytes
-rw-r--r--plugingui/resources/pushbutton_br.pngbin0 -> 388 bytes
-rw-r--r--plugingui/resources/pushbutton_c.pngbin0 -> 188 bytes
-rw-r--r--plugingui/resources/pushbutton_l.pngbin0 -> 258 bytes
-rw-r--r--plugingui/resources/pushbutton_r.pngbin0 -> 256 bytes
-rw-r--r--plugingui/resources/pushbutton_t.pngbin0 -> 192 bytes
-rw-r--r--plugingui/resources/pushbutton_tl.pngbin0 -> 307 bytes
-rw-r--r--plugingui/resources/pushbutton_tr.pngbin0 -> 326 bytes
-rw-r--r--plugingui/resources/pushbuttondown_b.pngbin0 -> 197 bytes
-rw-r--r--plugingui/resources/pushbuttondown_bl.pngbin0 -> 340 bytes
-rw-r--r--plugingui/resources/pushbuttondown_br.pngbin0 -> 338 bytes
-rw-r--r--plugingui/resources/pushbuttondown_c.pngbin0 -> 188 bytes
-rw-r--r--plugingui/resources/pushbuttondown_l.pngbin0 -> 237 bytes
-rw-r--r--plugingui/resources/pushbuttondown_r.pngbin0 -> 234 bytes
-rw-r--r--plugingui/resources/pushbuttondown_t.pngbin0 -> 190 bytes
-rw-r--r--plugingui/resources/pushbuttondown_tl.pngbin0 -> 312 bytes
-rw-r--r--plugingui/resources/pushbuttondown_tr.pngbin0 -> 336 bytes
-rw-r--r--plugingui/resources/switch_back_off.pngbin0 -> 2263 bytes
-rw-r--r--plugingui/resources/switch_back_on.pngbin0 -> 2504 bytes
-rw-r--r--plugingui/resources/switch_front.pngbin0 -> 1776 bytes
-rw-r--r--plugingui/resources/thinlistbox_b.pngbin0 -> 165 bytes
-rw-r--r--plugingui/resources/thinlistbox_bl.pngbin0 -> 165 bytes
-rw-r--r--plugingui/resources/thinlistbox_br.pngbin0 -> 165 bytes
-rw-r--r--plugingui/resources/thinlistbox_c.pngbin0 -> 165 bytes
-rw-r--r--plugingui/resources/thinlistbox_l.pngbin0 -> 165 bytes
-rw-r--r--plugingui/resources/thinlistbox_r.pngbin0 -> 165 bytes
-rw-r--r--plugingui/resources/thinlistbox_t.pngbin0 -> 165 bytes
-rw-r--r--plugingui/resources/thinlistbox_t_blue.pngbin0 -> 165 bytes
-rw-r--r--plugingui/resources/thinlistbox_tl.pngbin0 -> 165 bytes
-rw-r--r--plugingui/resources/thinlistbox_tr.pngbin0 -> 165 bytes
-rw-r--r--plugingui/resources/vertline.pngbin0 -> 170 bytes
-rw-r--r--plugingui/resources/widget_b.pngbin0 -> 192 bytes
-rw-r--r--plugingui/resources/widget_bl.pngbin0 -> 297 bytes
-rw-r--r--plugingui/resources/widget_br.pngbin0 -> 285 bytes
-rw-r--r--plugingui/resources/widget_c.pngbin0 -> 165 bytes
-rw-r--r--plugingui/resources/widget_l.pngbin0 -> 433 bytes
-rw-r--r--plugingui/resources/widget_r.pngbin0 -> 421 bytes
-rw-r--r--plugingui/resources/widget_t.pngbin0 -> 187 bytes
-rw-r--r--plugingui/resources/widget_tl.pngbin0 -> 246 bytes
-rw-r--r--plugingui/resources/widget_tr.pngbin0 -> 253 bytes
-rw-r--r--plugingui/scrollbar.cc185
-rw-r--r--plugingui/scrollbar.h75
-rw-r--r--plugingui/signal.cc478
-rw-r--r--plugingui/slider.cc158
-rw-r--r--plugingui/slider.h70
-rw-r--r--plugingui/test.cc172
-rw-r--r--plugingui/tester.cc50
-rw-r--r--plugingui/verticalline.cc41
-rw-r--r--plugingui/verticalline.h48
-rw-r--r--plugingui/widget.cc189
-rw-r--r--plugingui/widget.h97
-rw-r--r--plugingui/window.cc245
-rw-r--r--plugingui/window.h105
-rw-r--r--src/Makefile.am44
-rw-r--r--src/camsync.ttl144
-rw-r--r--src/configfile.cc347
-rw-r--r--src/configfile.h57
-rw-r--r--src/configparser.cc70
-rw-r--r--src/configparser.h49
-rw-r--r--src/configuration.cc38
-rw-r--r--src/configuration.h44
-rw-r--r--src/input_lv2.cc117
-rw-r--r--src/input_lv2.h56
-rw-r--r--src/lv2.cc235
-rw-r--r--src/lv2_event.h281
-rw-r--r--src/lv2_gui.cc237
-rw-r--r--src/lv2_gui.h40
-rw-r--r--src/lv2_instance.h48
-rw-r--r--src/manifest.ttl7
-rw-r--r--src/message.h121
-rw-r--r--src/messagehandler.cc89
-rw-r--r--src/messagehandler.h66
-rw-r--r--src/messagereceiver.cc78
-rw-r--r--src/messagereceiver.h75
-rw-r--r--src/midimapparser.cc52
-rw-r--r--src/midimapparser.h52
-rw-r--r--src/midimapper.cc41
-rw-r--r--src/midimapper.h46
-rw-r--r--src/mutex.cc155
-rw-r--r--src/mutex.h55
-rw-r--r--src/nolocale.h78
-rw-r--r--src/output_lv2.cc82
-rw-r--r--src/output_lv2.h61
-rw-r--r--src/path.cc51
-rw-r--r--src/path.h34
-rw-r--r--src/saxparser.cc135
-rw-r--r--src/saxparser.h57
-rw-r--r--src/semaphore.cc111
-rw-r--r--src/semaphore.h45
-rw-r--r--src/thread.cc68
-rw-r--r--src/thread.h56
-rw-r--r--src/versionstr.cc151
-rw-r--r--src/versionstr.h112
-rw-r--r--tools/Makefile.am2
-rwxr-xr-xtools/add_file74
-rw-r--r--version.h1
182 files changed, 25464 insertions, 0 deletions
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 0000000..c8afeaf
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1,6 @@
+AUTOMAKE_OPTIONS = gnu
+SUBDIRS = tools src lv2
+DISTDIRS = tools src lv2
+
+EXTRA_DIST = \
+ version.h \ No newline at end of file
diff --git a/autogen.sh b/autogen.sh
new file mode 100755
index 0000000..c0b9008
--- /dev/null
+++ b/autogen.sh
@@ -0,0 +1,25 @@
+#!/bin/sh -e
+
+# Check if hugin has been obtained:
+if [ ! -f hugin/hugin.c ]
+then
+ echo "You are missing the hugin submodule."
+ echo "Run"
+ echo " git submodule init"
+ echo " git submodule update"
+ echo "to obtain it."
+ exit 1
+fi
+
+# Check for the existence of cppunit.m4. If missing emulate it.
+mkdir -p actest
+cat << EOF > actest/configure.ac
+AC_INIT([actest], [1.0.0])
+AM_PATH_CPPUNIT(1.9.6)
+EOF
+[ -f acinclude.m4 ] && rm acinclude.m4
+autoreconf -W error actest 2>/dev/null || echo "AC_DEFUN([AM_PATH_CPPUNIT],[echo 'cppunit hack'])" > acinclude.m4
+rm -Rf actest
+
+# Now run autoreconf
+${AUTORECONF:-autoreconf} -fiv
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..6e64b82
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,250 @@
+AC_INIT([drumgizmo], m4_esyscmd([cat version.h | cut -d'"' -f2 | xargs echo -n]))dnl"
+
+AC_CONFIG_SRCDIR([src/drumgizmo.cc])
+AM_INIT_AUTOMAKE
+
+AC_PROG_CXX
+AM_PROG_CC_C_O
+
+LT_INIT
+
+AC_CONFIG_HEADERS(config.h)
+
+need_jack=no
+
+dnl ===========================
+dnl Compile with C++11 support.
+dnl ===========================
+AC_LANG_PUSH([C++])
+TMP_CXXFLAGS="$CXXFLAGS"
+CXXFLAGS=-std=c++11
+AC_MSG_CHECKING([whether CXX supports -std=c++11])
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
+ [AC_MSG_RESULT([yes])],
+ [
+ AC_MSG_RESULT([no])
+ CXXFLAGS=-std=c++0x
+ AC_MSG_CHECKING([whether CXX supports -std=c++0x])
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
+ [AC_MSG_RESULT([yes])],
+ [
+ AC_MSG_RESULT([no])
+ AC_MSG_ERROR([Compiler does not support c++11])
+ ]
+ )
+]
+)
+CXXFLAGS="$TMP_CXXFLAGS $CXXFLAGS"
+AC_LANG_POP([C++])
+
+dnl ======================
+dnl Init pkg-config
+dnl ======================
+PKG_PROG_PKG_CONFIG(0.23)
+
+HUGIN_PARM="-DDISABLE_HUGIN"
+AC_ARG_WITH([debug],
+ AS_HELP_STRING([--with-debug], [Build with debug support]))
+
+AS_IF([test "x$with_debug" == "xyes"],
+ [AC_MSG_WARN([*** Building with debug support!])
+ CXXFLAGS="$CXXFLAGS -Wall -Werror -g"
+ HUGIN_PARM=""]
+)
+
+dnl ===========================
+dnl Check for GUI backend
+dnl ===========================
+AC_CANONICAL_HOST
+AC_ARG_ENABLE([gui],
+ AS_HELP_STRING([--enable-gui[=backend]], [Use specified gui backend. Can be win32, x11, pugl or auto [default=auto]]),,
+ [enable_gui="auto"])
+
+AS_IF([test "x$enable_gui" = "xyes"], [enable_gui="auto"])
+
+AS_IF([test "x$enable_gui" = "xauto"],
+ [AC_MSG_RESULT([Auto setting gui based on host: $host_os])
+ AS_CASE([$host_os],
+ [darwin*], [enable_gui=""],
+ [linux*|*BSD*], [enable_gui="x11"],
+ [mingw*|windows*|winnt|cygwin], [enable_gui="win32"],
+
+ AC_MSG_ERROR([Your platform is not currently supported])
+ )]
+)
+
+AS_IF(
+ [test "x$enable_gui" = "xx11"],
+ [AC_MSG_RESULT([Setting gui backend to X11])
+ dnl ======================
+ dnl Check for Xlib
+ dnl ======================
+ PKG_CHECK_MODULES(X11, x11 >= 1.0)
+
+ GUI_CFLAGS="-DX11 $X11_CFLAGS"
+ GUI_LIBS="$X11_LIBS"],
+
+ [test "x$enable_gui" = "xwin32"],
+ [AC_MSG_RESULT([Setting gui backend to Win32])
+ GUI_CFLAGS="-DWIN32"
+ GUI_LIBS="-lgdi32 -lsetupapi -lws2_32"],
+
+ [test "x$enable_gui" = "xpugl"],
+ [AC_MSG_RESULT([Setting gui backend to Pugl])
+ GUI_CFLAGS="-DPUGL -I../../pugl"
+ GUI_LIBS="-lGLU -lGL -lglut"],
+
+ AC_MSG_ERROR([*** No GUI backend has been selected ***])
+)
+
+AC_SUBST(GUI_CFLAGS)
+AC_SUBST(GUI_LIBS)
+
+AM_CONDITIONAL([ENABLE_PUGL], [test "x$enable_gui" = "xpugl"])
+
+# dnl ======================
+# dnl Compile unit tests
+# dnl ======================
+# AC_ARG_WITH([test],
+# AS_HELP_STRING([--with-test], [Build unit tests]))
+#
+# AS_IF([test x$with_test == xyes],
+# [AC_MSG_WARN([*** Building unittests!])
+# AM_PATH_CPPUNIT(1.9.6)]
+# )
+
+dnl ======================
+dnl Compile LV2 plugin
+dnl ======================
+AC_ARG_ENABLE([lv2],
+ AS_HELP_STRING([--enable-lv2], [Compile the LV2 plugin [default=no]]),,
+ [enable_lv2="no"])
+
+AS_IF(
+ [test "x$enable_lv2" = "xyes"],
+ [enable_lv2=yes
+ dnl ======================
+ dnl Check for lv2core
+ dnl ======================
+ PKG_CHECK_MODULES(LV2, lv2 >= 1.0)],
+
+ [AC_MSG_RESULT([*** LV2 plugin will not be compiled ***])
+ enable_lv2=no]
+)
+
+AM_CONDITIONAL([ENABLE_LV2], [test "x$enable_lv2" = "xyes"])
+
+dnl ======================
+dnl Compile VST plugin
+dnl ======================
+AC_ARG_WITH([vst_sources],
+ AS_HELP_STRING([--with-vst-sources], [Point this to the vstsdk24 directory]))
+AC_ARG_ENABLE([vst],
+ AS_HELP_STRING([--enable-vst], [Compile the VST plugin [default=no]]),,
+ [enable_vst="no"])
+
+AS_IF(
+ [test "x$enable_vst" = "xyes"],
+ [enable_vst=yes
+ VST_CPPFLAGS="-I$with_vst_sources -D__int64='long long int'"
+ VST_SOURCE_PATH="$with_vst_sources"
+ AC_SUBST(VST_SOURCE_PATH)
+ AC_SUBST(VST_CPPFLAGS)
+ AC_CONFIG_FILES(vst/Makefile.mingw32)],
+
+ [AC_MSG_RESULT([*** VST plugin will not be compiled ***])
+ enable_vst=no]
+)
+
+AM_CONDITIONAL([ENABLE_VST], [test "x$enable_vst" = "xyes"])
+
+
+dnl ======================
+dnl Compile AU plugin
+dnl ======================
+#AC_ARG_ENABLE([au],
+#[ --enable-au Compile the audio units plugin [default=no]],,
+# [enable_au="no"])
+#if test "x$enable_au" = "xyes"; then
+# enable_au=yes
+#else
+# AC_MSG_RESULT([*** Audio Units plugin will not be compiled ***])
+# enable_au=no
+#fi
+#AM_CONDITIONAL([ENABLE_AU], [test "x$enable_au" = "xyes"])
+
+dnl ======================
+dnl Check for sndfile
+dnl ======================
+PKG_CHECK_MODULES(SNDFILE, sndfile >= 1.0.20)
+
+#dnl ======================
+#dnl Check for zlib
+#dnl ======================
+PKG_CHECK_MODULES(ZLIB, zlib >= 1.2.3)
+
+dnl ======================
+dnl Check for the pthread library
+dnl ======================
+tmp_CXXFLAGS="$CXXFLAGS"
+tmp_CPPFLAGS="$CPPFLAGS"
+tmp_CFLAGS="$CFLAGS"
+tmp_LDFLAGS="$LDFLAGS"
+tmp_LIBS="$LIBS"
+CXXFLAGS=""
+CPPFLAGS=""
+CFLAGS=""
+LDFLAGS=""
+LIBS=""
+AC_CHECK_HEADER(pthread.h, , AC_MSG_ERROR([*** pthread header file not found!]))
+AC_CHECK_LIB(pthread, pthread_mutex_init, , AC_MSG_ERROR([*** pthread library not found!]))
+PTHREAD_CFLAGS="$CXXFLAGS $CPPFLAGS $CFLAGS"
+PTHREAD_LIBS="$LDFLAGS $LIBS"
+CXXFLAGS="$tmp_CXXFLAGS"
+CPPFLAGS="$tmp_CPPFLAGS"
+CFLAGS="$tmp_CFLAGS"
+LDFLAGS="$tmp_LDFLAGS"
+LIBS="$tmp_LIBS"
+AC_SUBST(PTHREAD_CFLAGS)
+AC_SUBST(PTHREAD_LIBS)
+
+dnl ======================
+dnl Check for eXpat library
+dnl ======================
+tmp_CXXFLAGS="$CXXFLAGS"
+tmp_CPPFLAGS="$CPPFLAGS"
+tmp_CFLAGS="$CFLAGS"
+tmp_LDFLAGS="$LDFLAGS"
+tmp_LIBS="$LIBS"
+CXXFLAGS=""
+CPPFLAGS=""
+CFLAGS="$EXPAT_CFLAGS"
+LDFLAGS="$EXPAT_LDFLAGS"
+LIBS=""
+AC_CHECK_HEADER(expat.h, , AC_MSG_ERROR([*** eXpat header file not found!]))
+AC_CHECK_LIB(expat, XML_ParserCreate, , AC_MSG_ERROR([*** eXpat library not found!]))
+EXPAT_CFLAGS="$CXXFLAGS $CPPFLAGS $CFLAGS"
+EXPAT_LIBS="$LDFLAGS $LIBS"
+CXXFLAGS="$tmp_CXXFLAGS"
+CPPFLAGS="$tmp_CPPFLAGS"
+CFLAGS="$tmp_CFLAGS"
+LDFLAGS="$tmp_LDFLAGS"
+LIBS="$tmp_LIBS"
+AC_SUBST(EXPAT_CFLAGS)
+AC_SUBST(EXPAT_LIBS)
+
+AC_SUBST(CFLAGS)
+AC_SUBST(CPPFLAGS)
+AC_SUBST(CXXFLAGS)
+AC_SUBST(LDFLAGS)
+
+AC_CONFIG_FILES(
+ Makefile
+ tools/Makefile
+ src/Makefile
+ pluginui/Makefile
+ lv2/Makefile
+ plugingui/Makefile
+)
+
+AC_OUTPUT()
diff --git a/plugingui/Makefile.am b/plugingui/Makefile.am
new file mode 100644
index 0000000..00b0881
--- /dev/null
+++ b/plugingui/Makefile.am
@@ -0,0 +1,61 @@
+noinst_PROGRAMS = plugingui rcgen
+
+include Makefile.am.plugingui
+#include $(top_srcdir)/src/Makefile.am.drumgizmo
+
+plugingui_LDADD = $(SNDFILE_LIBS) $(PTHREAD_LIBS) $(EXPAT_LIBS) \
+ -ldl $(PLUGIN_GUI_LIBS)
+
+plugingui_CXXFLAGS = $(SNDFILE_CXXFLAGS) $(PTHREAD_CFLAGS) $(EXPAT_CFLAGS) \
+ -I$(top_srcdir)/include $(PLUGIN_GUI_CFLAGS) -I$(top_srcdir)/src \
+ -DSTANDALONE -DUSE_THREAD
+
+plugingui_CFLAGS = $(plugingui_CXXFLAGS)
+
+plugingui_SOURCES = \
+ $(PLUGIN_GUI_SOURCES) \
+ $(top_srcdir)/src/configfile.cc \
+ $(top_srcdir)/src/thread.cc \
+ $(top_srcdir)/src/semaphore.cc \
+ $(top_srcdir)/src/mutex.cc \
+ $(top_srcdir)/src/messagehandler.cc \
+ $(top_srcdir)/src/messagereceiver.cc
+
+rcgen_SOURCES = rcgen.cc
+
+EXTRA_DIST = \
+ button.h \
+ checkbox.h \
+ colour.h \
+ combobox.h \
+ directory.h \
+ eventhandler.h \
+ filebrowser.h \
+ font.h \
+ guievent.h \
+ image.h \
+ knob.h \
+ label.h \
+ led.h \
+ lineedit.h \
+ listbox.h \
+ listboxbasic.h \
+ listboxthin.h \
+ nativewindow.h \
+ nativewindow.h \
+ nativewindow_win32.h \
+ nativewindow_x11.h \
+ painter.h \
+ pixelbuffer.h \
+ pluginconfig.h \
+ plugingui.h \
+ progressbar.h \
+ resource.h \
+ resource_data.h \
+ scrollbar.h \
+ slider.h \
+ verticalline.h \
+ widget.h \
+ window.h \
+ lodepng/lodepng.h
+
diff --git a/plugingui/Makefile.am.plugingui b/plugingui/Makefile.am.plugingui
new file mode 100644
index 0000000..cb7a79f
--- /dev/null
+++ b/plugingui/Makefile.am.plugingui
@@ -0,0 +1,50 @@
+
+puglsources =
+
+PLUGIN_GUI_SOURCES = \
+ $(top_srcdir)/hugin/hugin.c \
+ $(top_srcdir)/hugin/hugin_syslog.c \
+ $(puglsources) \
+ $(top_srcdir)/plugingui/nativewindow_x11.cc \
+ $(top_srcdir)/plugingui/nativewindow_win32.cc \
+ $(top_srcdir)/plugingui/application.cc \
+ $(top_srcdir)/plugingui/plugingui.cc \
+ $(top_srcdir)/plugingui/label.cc \
+ $(top_srcdir)/plugingui/eventhandler.cc \
+ $(top_srcdir)/plugingui/font.cc \
+ $(top_srcdir)/plugingui/window.cc \
+ $(top_srcdir)/plugingui/widget.cc \
+ $(top_srcdir)/plugingui/colour.cc \
+ $(top_srcdir)/plugingui/painter.cc \
+ $(top_srcdir)/plugingui/button.cc \
+ $(top_srcdir)/plugingui/pixelbuffer.cc \
+ $(top_srcdir)/plugingui/lineedit.cc \
+ $(top_srcdir)/plugingui/led.cc \
+ $(top_srcdir)/plugingui/checkbox.cc \
+ $(top_srcdir)/plugingui/slider.cc \
+ $(top_srcdir)/plugingui/scrollbar.cc \
+ $(top_srcdir)/plugingui/listbox.cc \
+ $(top_srcdir)/plugingui/listboxthin.cc \
+ $(top_srcdir)/plugingui/listboxbasic.cc \
+ $(top_srcdir)/plugingui/knob.cc \
+ $(top_srcdir)/plugingui/filebrowser.cc \
+ $(top_srcdir)/plugingui/directory.cc \
+ $(top_srcdir)/plugingui/pluginconfig.cc \
+ $(top_srcdir)/plugingui/image.cc \
+ $(top_srcdir)/plugingui/combobox.cc \
+ $(top_srcdir)/plugingui/progressbar.cc \
+ $(top_srcdir)/plugingui/verticalline.cc \
+ $(top_srcdir)/plugingui/resource.cc \
+ $(top_srcdir)/plugingui/resource_data.cc \
+ $(top_srcdir)/plugingui/lodepng/lodepng.cpp
+
+PLUGIN_GUI_LIBS = $(GUI_LIBS) $(PTHREAD_LIBS) $(ZLIB_LIBS)
+
+PLUGIN_GUI_CFLAGS = $(GUI_CFLAGS) $(ZLIB_CFLAGS) -I$(top_srcdir)/hugin \
+ -DWITH_HUG_SYSLOG -DWITH_HUG_MUTEX $(PTHREAD_CFLAGS) \
+ -I$(top_srcdir)/pugl/pugl \
+ -DLODEPNG_NO_COMPILE_ENCODER \
+ -DLODEPNG_NO_COMPILE_DISK \
+ -DLODEPNG_NO_COMPILE_ANCILLARY_CHUNKS \
+ -DLODEPNG_NO_COMPILE_ERROR_TEXT \
+ -DLODEPNG_NO_COMPILE_CPP
diff --git a/plugingui/Makefile.mingw32 b/plugingui/Makefile.mingw32
new file mode 100644
index 0000000..b16535b
--- /dev/null
+++ b/plugingui/Makefile.mingw32
@@ -0,0 +1,67 @@
+top_srcdir=..
+include Makefile.am.plugingui
+
+CFLAGS=-DSTANDALONE -DWIN32 -DUSE_THREAD ${PLUGIN_GUI_CFLAGS} \
+ -I$(top_srcdir)/src -I/local/include
+LDFLAGS=-mconsole -lgdi32 -lsetupapi -lws2_32 -L/local/lib -lz -pthread
+
+C_SOURCES = \
+ $(top_srcdir)/hugin/hugin.c \
+ $(top_srcdir)/hugin/hugin_syslog.c
+
+CXX_SOURCES = \
+ $(top_srcdir)/plugingui/nativewindow_x11.cc \
+ $(top_srcdir)/plugingui/nativewindow_win32.cc \
+ $(top_srcdir)/plugingui/plugingui.cc \
+ $(top_srcdir)/plugingui/pluginconfig.cc \
+ $(top_srcdir)/plugingui/label.cc \
+ $(top_srcdir)/plugingui/eventhandler.cc \
+ $(top_srcdir)/plugingui/font.cc \
+ $(top_srcdir)/plugingui/window.cc \
+ $(top_srcdir)/plugingui/widget.cc \
+ $(top_srcdir)/plugingui/colour.cc \
+ $(top_srcdir)/plugingui/painter.cc \
+ $(top_srcdir)/plugingui/button.cc \
+ $(top_srcdir)/plugingui/pixelbuffer.cc \
+ $(top_srcdir)/plugingui/lineedit.cc \
+ $(top_srcdir)/plugingui/led.cc \
+ $(top_srcdir)/plugingui/checkbox.cc \
+ $(top_srcdir)/plugingui/slider.cc \
+ $(top_srcdir)/plugingui/listbox.cc \
+ $(top_srcdir)/plugingui/verticalline.cc \
+ $(top_srcdir)/plugingui/listboxthin.cc \
+ $(top_srcdir)/plugingui/listboxbasic.cc \
+ $(top_srcdir)/plugingui/filebrowser.cc \
+ $(top_srcdir)/plugingui/directory.cc \
+ $(top_srcdir)/plugingui/knob.cc \
+ $(top_srcdir)/plugingui/combobox.cc \
+ $(top_srcdir)/plugingui/image.cc \
+ $(top_srcdir)/plugingui/scrollbar.cc \
+ $(top_srcdir)/plugingui/progressbar.cc \
+ $(top_srcdir)/plugingui/resource.cc \
+ $(top_srcdir)/plugingui/resource_data.cc \
+ $(top_srcdir)/plugingui/lodepng/lodepng.cpp \
+ $(top_srcdir)/src/thread.cc \
+ $(top_srcdir)/src/semaphore.cc \
+ $(top_srcdir)/src/mutex.cc \
+ $(top_srcdir)/src/messagehandler.cc \
+ $(top_srcdir)/src/messagereceiver.cc
+
+OBJECTS=$(CXX_SOURCES:.cc=.o) $(C_SOURCES:.c=.o)
+#OBJECTS=$(PLUGIN_GUI_SOURCES:.cc=.o)
+
+#$(PLUGIN_GUI_SOURCES:.c=.o)
+
+all: $(CXX_SOURCES) $(C_SOURCES) plugingui.exe
+
+plugingui.exe: $(OBJECTS)
+ g++ -static -static-libgcc $(OBJECTS) $(LDFLAGS) $(CFLAGS) -o $@
+
+%.o: %.cc
+ g++ -g -static -static-libgcc -O2 -c $(CFLAGS) $< -o $@
+
+%.o: %.c
+ gcc -g -static -static-libgcc -O2 -c $(CFLAGS) $< -o $@
+
+clean:
+ rm -rf $(OBJECTS) plugingui.exe
diff --git a/plugingui/application.cc b/plugingui/application.cc
new file mode 100644
index 0000000..8ff8246
--- /dev/null
+++ b/plugingui/application.cc
@@ -0,0 +1,66 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * application.cc
+ *
+ * Thu Sep 3 18:22:15 CEST 2015
+ * Copyright 2015 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "application.h"
+
+#ifdef WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#else
+#include <unistd.h>
+#endif
+
+namespace GUI {
+
+Application::Application()
+ : running(true)
+{
+}
+
+void Application::run()
+{
+ Thread::run();
+}
+
+void Application::thread_main()
+{
+ onInit();
+
+ while(running) {
+#ifdef WIN32
+ SleepEx(50, FALSE);
+#else
+ usleep(50000);
+#endif/*WIN32*/
+
+ // window->eventHandler()->processEvents();
+ //handleMessages();
+ }
+
+ onTerminate();
+}
+
+} // GUI::
diff --git a/plugingui/application.h b/plugingui/application.h
new file mode 100644
index 0000000..3fd0fbb
--- /dev/null
+++ b/plugingui/application.h
@@ -0,0 +1,52 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * application.h
+ *
+ * Thu Sep 3 18:22:15 CEST 2015
+ * Copyright 2015 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#pragma once
+
+#include <thread.h>
+
+namespace GUI {
+
+class Application : public Thread {
+public:
+ Application();
+
+ void run();
+
+protected:
+ //! This is called before the message loop is started.
+ virtual void onInit() {}
+
+ //! This is called after message loop has finished.
+ virtual void onTerminate() {}
+
+private:
+ void thread_main();
+
+ volatile bool running;
+};
+
+} // GUI::
diff --git a/plugingui/button.cc b/plugingui/button.cc
new file mode 100644
index 0000000..c316ef3
--- /dev/null
+++ b/plugingui/button.cc
@@ -0,0 +1,157 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * button.cc
+ *
+ * Sun Oct 9 13:01:56 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "button.h"
+
+#include "painter.h"
+
+#include <stdio.h>
+#include <hugin.hpp>
+
+GUI::Button::Button(Widget *parent)
+ : GUI::Widget(parent)
+{
+ box_up.topLeft = new Image(":pushbutton_tl.png");
+ box_up.top = new Image(":pushbutton_t.png");
+ box_up.topRight = new Image(":pushbutton_tr.png");
+ box_up.left = new Image(":pushbutton_l.png");
+ box_up.right = new Image(":pushbutton_r.png");
+ box_up.bottomLeft = new Image(":pushbutton_bl.png");
+ box_up.bottom = new Image(":pushbutton_b.png");
+ box_up.bottomRight = new Image(":pushbutton_br.png");
+ box_up.center = new Image(":pushbutton_c.png");
+
+ box_down.topLeft = new Image(":pushbuttondown_tl.png");
+ box_down.top = new Image(":pushbuttondown_t.png");
+ box_down.topRight = new Image(":pushbuttondown_tr.png");
+ box_down.left = new Image(":pushbuttondown_l.png");
+ box_down.right = new Image(":pushbuttondown_r.png");
+ box_down.bottomLeft = new Image(":pushbuttondown_bl.png");
+ box_down.bottom = new Image(":pushbuttondown_b.png");
+ box_down.bottomRight = new Image(":pushbuttondown_br.png");
+ box_down.center = new Image(":pushbuttondown_c.png");
+
+ draw_state = up;
+ button_state = up;
+
+ handler = NULL;
+ ptr = NULL;
+}
+
+void GUI::Button::registerClickHandler(void (*handler)(void *), void *ptr)
+{
+ this->handler = handler;
+ this->ptr = ptr;
+}
+
+void GUI::Button::buttonEvent(ButtonEvent *e)
+{
+ if(e->direction == 1) {
+ draw_state = down;
+ button_state = down;
+ in_button = true;
+ repaintEvent(NULL);
+ }
+ if(e->direction == -1) {
+ draw_state = up;
+ button_state = up;
+ repaintEvent(NULL);
+ if(in_button) {
+ clicked();
+ if(handler) handler(ptr);
+ }
+ }
+}
+
+void GUI::Button::repaintEvent(GUI::RepaintEvent *e)
+{
+ Painter p(this);
+
+ p.clear();
+
+ int w = width();
+ int h = height();
+ if(w == 0 || h == 0) return;
+
+ switch(draw_state) {
+ case up:
+ p.drawBox(0, 0, &box_up, w, h);
+ break;
+ case down:
+ p.drawBox(0, 0, &box_down, w, h);
+ break;
+ }
+
+ Font font(":fontemboss.png");
+ p.setColour(Colour(0.1));
+ p.drawText(width()/2-(text.length()*3)+(draw_state==up?0:1),
+ height()/2+5+1+(draw_state==up?0:1), font, text, true);
+}
+
+void GUI::Button::setText(std::string text)
+{
+ this->text = text;
+ repaintEvent(NULL);
+}
+
+void GUI::Button::mouseLeaveEvent()
+{
+ in_button = false;
+ if(button_state == down) {
+ draw_state = up;
+ repaintEvent(NULL);
+ }
+}
+
+void GUI::Button::mouseEnterEvent()
+{
+ in_button = true;
+ if(button_state == down) {
+ draw_state = down;
+ repaintEvent(NULL);
+ }
+}
+
+void GUI::Button::mouseMoveEvent(MouseMoveEvent *e)
+{
+}
+
+#ifdef TEST_BUTTON
+//Additional dependency files
+//deps:
+//Required cflags (autoconf vars may be used)
+//cflags:
+//Required link options (autoconf vars may be used)
+//libs:
+#include "test.h"
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+
+TEST_END;
+
+#endif/*TEST_BUTTON*/
diff --git a/plugingui/button.h b/plugingui/button.h
new file mode 100644
index 0000000..682dfa2
--- /dev/null
+++ b/plugingui/button.h
@@ -0,0 +1,80 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * button.h
+ *
+ * Sun Oct 9 13:01:56 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_BUTTON_H__
+#define __DRUMGIZMO_BUTTON_H__
+
+#include <string>
+
+#include "widget.h"
+#include "painter.h"
+
+namespace GUI {
+
+class Button : public Widget {
+public:
+ Button(Widget *parent);
+
+ bool isFocusable() { return true; }
+ bool catchMouse() { return true; }
+
+ void setText(std::string text);
+
+ void registerClickHandler(void (*handler)(void *), void *ptr);
+
+ //protected:
+ virtual void clicked() {}
+
+ virtual void repaintEvent(RepaintEvent *e);
+ virtual void buttonEvent(ButtonEvent *e);
+
+ virtual void mouseLeaveEvent();
+ virtual void mouseEnterEvent();
+ virtual void mouseMoveEvent(MouseMoveEvent *e);
+
+private:
+ bool in_button;
+
+ Painter::Box box_up;
+ Painter::Box box_down;
+
+ typedef enum {
+ up,
+ down
+ } state_t;
+
+ std::string text;
+
+ state_t draw_state;
+ state_t button_state;
+
+ void (*handler)(void *);
+ void *ptr;
+};
+
+};
+
+#endif/*__DRUMGIZMO_BUTTON_H__*/
diff --git a/plugingui/checkbox.cc b/plugingui/checkbox.cc
new file mode 100644
index 0000000..ec0456f
--- /dev/null
+++ b/plugingui/checkbox.cc
@@ -0,0 +1,115 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * checkbox.cc
+ *
+ * Sat Nov 26 15:07:44 CET 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "checkbox.h"
+
+#include "painter.h"
+
+#include <stdio.h>
+
+namespace GUI {
+
+CheckBox::CheckBox(Widget *parent)
+ : Widget(parent)
+ , bg_on(":switch_back_on.png")
+ , bg_off(":switch_back_off.png")
+ , knob(":switch_front.png")
+ , state(false)
+ , middle(false)
+{
+}
+
+void CheckBox::buttonEvent(ButtonEvent *e)
+{
+ if(e->direction == -1 || e->doubleclick) {
+ middle = false;
+ internalSetChecked(!state);
+ } else {
+ middle = true;
+ }
+
+ repaintEvent(NULL);
+}
+
+void CheckBox::setText(std::string text)
+{
+ _text = text;
+ repaintEvent(NULL);
+}
+
+void CheckBox::keyEvent(KeyEvent *e)
+{
+ if(e->keycode == KeyEvent::KEY_CHARACTER && e->text == " ") {
+ if(e->direction == -1) {
+ middle = false;
+ internalSetChecked(!state);
+ } else {
+ middle = true;
+ }
+
+ repaintEvent(NULL);
+ }
+}
+
+void CheckBox::repaintEvent(RepaintEvent *e)
+{
+ Painter p(this);
+
+ p.clear();
+
+ if(state) {
+ p.drawImage(0, (knob.height() - bg_on.height()) / 2, &bg_on);
+ if(middle) p.drawImage((bg_on.width() - knob.width()) / 2 + 1, 0, &knob);
+ else p.drawImage(bg_on.width() - 40 + 2, 0, &knob);
+ } else {
+ p.drawImage(0, (knob.height() - bg_off.height()) / 2, &bg_off);
+ if(middle) p.drawImage((bg_on.width() - knob.width()) / 2 + 1, 0, &knob);
+ else p.drawImage(0, 0, &knob);
+ }
+}
+
+bool CheckBox::checked()
+{
+ return state;
+}
+
+void CheckBox::setChecked(bool c)
+{
+ internalSetChecked(c);
+}
+
+void CheckBox::internalSetChecked(bool checked)
+{
+ if(checked == state) {
+ return;
+ }
+
+ state = checked;
+ stateChangedNotifier.notify(state);
+ repaintEvent(NULL);
+}
+
+} // GUI::
diff --git a/plugingui/checkbox.h b/plugingui/checkbox.h
new file mode 100644
index 0000000..8dd3821
--- /dev/null
+++ b/plugingui/checkbox.h
@@ -0,0 +1,69 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * checkbox.h
+ *
+ * Sat Nov 26 15:07:44 CET 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#pragma once
+
+#include "widget.h"
+#include "image.h"
+#include "notifier.h"
+
+namespace GUI {
+
+class CheckBox : public Widget {
+public:
+ CheckBox(Widget *parent);
+
+ void setText(std::string text);
+
+ bool isFocusable() override { return true; }
+
+ bool checked();
+ void setChecked(bool checked);
+
+ Notifier<bool> stateChangedNotifier;
+
+protected:
+ virtual void clicked() {}
+
+ // From Widget:
+ virtual void repaintEvent(RepaintEvent *e) override;
+ virtual void buttonEvent(ButtonEvent *e) override;
+ virtual void keyEvent(KeyEvent *e) override;
+
+private:
+ void internalSetChecked(bool checked);
+
+ Image bg_on;
+ Image bg_off;
+ Image knob;
+
+ bool state;
+ bool middle;
+
+ std::string _text;
+};
+
+} // GUI::
diff --git a/plugingui/colour.cc b/plugingui/colour.cc
new file mode 100644
index 0000000..943011b
--- /dev/null
+++ b/plugingui/colour.cc
@@ -0,0 +1,63 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * colour.cc
+ *
+ * Fri Oct 14 09:38:28 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "colour.h"
+
+GUI::Colour::Colour()
+{
+ red = blue = green = alpha = 1.0;
+}
+
+GUI::Colour::Colour(float grey, float a)
+{
+ red = green = blue = grey;
+ alpha = a;
+}
+
+GUI::Colour::Colour(float r, float g, float b, float a)
+{
+ red = r;
+ green = g;
+ blue = b;
+ alpha = a;
+}
+
+#ifdef TEST_COLOUR
+//Additional dependency files
+//deps:
+//Required cflags (autoconf vars may be used)
+//cflags:
+//Required link options (autoconf vars may be used)
+//libs:
+#include "test.h"
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+
+TEST_END;
+
+#endif/*TEST_COLOUR*/
diff --git a/plugingui/colour.h b/plugingui/colour.h
new file mode 100644
index 0000000..92ec99e
--- /dev/null
+++ b/plugingui/colour.h
@@ -0,0 +1,51 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * colour.h
+ *
+ * Fri Oct 14 09:38:28 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_COLOUR_H__
+#define __DRUMGIZMO_COLOUR_H__
+
+namespace GUI {
+
+class Colour {
+public:
+ Colour();
+
+ Colour(float grey, float alpha = 1.0);
+
+ Colour(float red,
+ float green,
+ float blue,
+ float alpha = 1.0);
+
+ float red;
+ float green;
+ float blue;
+ float alpha;
+};
+
+};
+
+#endif/*__DRUMGIZMO_COLOUR_H__*/
diff --git a/plugingui/combobox.cc b/plugingui/combobox.cc
new file mode 100644
index 0000000..4637282
--- /dev/null
+++ b/plugingui/combobox.cc
@@ -0,0 +1,231 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * combobox.cc
+ *
+ * Sun Mar 10 19:04:50 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "combobox.h"
+
+#include "painter.h"
+#include "font.h"
+
+#include <stdio.h>
+
+#define BORDER 10
+
+void listboxSelectHandler(void *ptr)
+{
+ GUI::ComboBox *c = (GUI::ComboBox*)ptr;
+ GUI::ButtonEvent e;
+ e.direction = 1;
+ c->buttonEvent(&e);
+}
+
+GUI::ComboBox::ComboBox(GUI::Widget *parent)
+ : GUI::Widget(parent)
+{
+ handler = NULL;
+ ptr = NULL;
+
+ box.topLeft = new Image(":widget_tl.png");
+ box.top = new Image(":widget_t.png");
+ box.topRight = new Image(":widget_tr.png");
+ box.left = new Image(":widget_l.png");
+ box.right = new Image(":widget_r.png");
+ box.bottomLeft = new Image(":widget_bl.png");
+ box.bottom = new Image(":widget_b.png");
+ box.bottomRight = new Image(":widget_br.png");
+ box.center = new Image(":widget_c.png");
+
+ listbox = new GUI::ListBoxThin(parent);
+ listbox->registerSelectHandler(listboxSelectHandler, this);
+ listbox->registerClickHandler(listboxSelectHandler, this);
+ listbox->hide();
+}
+
+GUI::ComboBox::~ComboBox()
+{
+}
+
+void GUI::ComboBox::addItem(std::string name, std::string value)
+{
+ listbox->addItem(name, value);
+}
+
+void GUI::ComboBox::clear()
+{
+ listbox->clear();
+ repaintEvent(NULL);
+}
+
+bool GUI::ComboBox::selectItem(int index)
+{
+ listbox->selectItem(index);
+ repaintEvent(NULL);
+ return true;
+}
+
+std::string GUI::ComboBox::selectedName()
+{
+ return listbox->selectedName();
+}
+
+std::string GUI::ComboBox::selectedValue()
+{
+ return listbox->selectedValue();
+}
+
+void GUI::ComboBox::registerValueChangedHandler(void (*handler)(void *),
+ void *ptr)
+{
+ this->handler = handler;
+ this->ptr = ptr;
+}
+
+static void drawArrow(GUI::Painter &p, int x, int y, int w, int h)
+{
+ p.drawLine(x, y, x+(w/2), y+h);
+ p.drawLine(x+(w/2), y+h, x+w, y);
+
+ y++;
+ p.drawLine(x, y, x+(w/2), y+h);
+ p.drawLine(x+(w/2), y+h, x+w, y);
+}
+
+void GUI::ComboBox::repaintEvent(GUI::RepaintEvent *e)
+{
+ Painter p(this);
+
+ p.clear();
+
+ std::string _text = selectedName();
+
+ int w = width();
+ int h = height();
+ if(w == 0 || h == 0) return;
+ p.drawBox(0, 0, &box, w, h);
+
+ p.setColour(GUI::Colour(183.0/255.0, 219.0/255.0 , 255.0/255.0, 1));
+ p.drawText(BORDER - 4 + 3, height()/2+5 + 1 + 1, font, _text);
+
+ // p.setColour(Colour(1, 1, 1));
+ // p.drawText(BORDER - 4, (height()+font.textHeight()) / 2 + 1, font, _text);
+
+ //int n = height() / 2;
+
+ // p.drawLine(width() - n - 6, 1 + 6, width() - 1 - 6, 1 + 6);
+ {
+ int w = 10;
+ int h = 6;
+ drawArrow(p, width() - 6 - 4 - w, (height() - h) / 2, w, h);
+ p.drawLine(width() - 6 - 4 - w - 4, 7,
+ width() - 6 - 4 - w - 4, height() - 8);
+ }
+}
+
+void GUI::ComboBox::scrollEvent(ScrollEvent *e)
+{
+ /*
+ scroll_offset += e->delta;
+ if(scroll_offset < 0) scroll_offset = 0;
+ if(scroll_offset > (items.size() - 1))
+ scroll_offset = (items.size() - 1);
+ repaintEvent(NULL);
+ */
+}
+
+void GUI::ComboBox::keyEvent(GUI::KeyEvent *e)
+{
+ if(e->direction != -1) return;
+
+ /*
+ switch(e->keycode) {
+ case GUI::KeyEvent::KEY_UP:
+ {
+ selected--;
+ if(selected < 0) selected = 0;
+ if(selected < scroll_offset) {
+ scroll_offset = selected;
+ if(scroll_offset < 0) scroll_offset = 0;
+ }
+ }
+ break;
+ case GUI::KeyEvent::KEY_DOWN:
+ {
+ // Number of items that can be displayed at a time.
+ int numitems = height() / (font.textHeight() + padding);
+
+ selected++;
+ if(selected > (items.size() - 1))
+ selected = (items.size() - 1);
+ if(selected > (scroll_offset + numitems - 1)) {
+ scroll_offset = selected - numitems + 1;
+ if(scroll_offset > (items.size() - 1))
+ scroll_offset = (items.size() - 1);
+ }
+ }
+ break;
+ case GUI::KeyEvent::KEY_HOME:
+ selected = 0;
+ break;
+ case GUI::KeyEvent::KEY_END:
+ selected = items.size() - 1;
+ break;
+ default:
+ break;
+ }
+
+ repaintEvent(NULL);
+ */
+}
+
+void GUI::ComboBox::buttonEvent(ButtonEvent *e)
+{
+ if(e->direction != 1) return;
+
+ if(!listbox->visible()) {
+ listbox->resize(width() - 10, 100);
+ listbox->move(x() + 5, y() + height() - 7);
+ } else {
+ if(handler) handler(ptr);
+ }
+
+ listbox->setVisible(!listbox->visible());
+}
+
+#ifdef TEST_COMBOBOX
+//Additional dependency files
+//deps:
+//Required cflags (autoconf vars may be used)
+//cflags:
+//Required link options (autoconf vars may be used)
+//libs:
+#include "test.h"
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+
+TEST_END;
+
+#endif/*TEST_COMBOBOX*/
diff --git a/plugingui/combobox.h b/plugingui/combobox.h
new file mode 100644
index 0000000..bc4ae38
--- /dev/null
+++ b/plugingui/combobox.h
@@ -0,0 +1,73 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * combobox.h
+ *
+ * Sun Mar 10 19:04:50 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_COMBOBOX_H__
+#define __DRUMGIZMO_COMBOBOX_H__
+
+#include <string.h>
+#include <vector>
+
+#include "widget.h"
+#include "font.h"
+#include "listboxthin.h"
+#include "painter.h"
+
+namespace GUI {
+
+class ComboBox : public Widget {
+public:
+ ComboBox(Widget *parent);
+ ~ComboBox();
+
+ bool isFocusable() { return true; }
+
+ void addItem(std::string name, std::string value);
+
+ void clear();
+ bool selectItem(int index);
+ std::string selectedName();
+ std::string selectedValue();
+
+ void registerValueChangedHandler(void (*handler)(void *), void *ptr);
+
+ virtual void repaintEvent(RepaintEvent *e);
+ virtual void buttonEvent(ButtonEvent *e);
+ virtual void scrollEvent(ScrollEvent *e);
+ virtual void keyEvent(KeyEvent *e);
+
+private:
+ Painter::Box box;
+
+ GUI::Font font;
+ GUI::ListBoxThin *listbox;
+
+ void (*handler)(void *);
+ void *ptr;
+};
+
+};
+
+#endif/*__DRUMGIZMO_COMBOBOX_H__*/
diff --git a/plugingui/directory.cc b/plugingui/directory.cc
new file mode 100644
index 0000000..1465c86
--- /dev/null
+++ b/plugingui/directory.cc
@@ -0,0 +1,443 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * directory.cc
+ *
+ * Tue Apr 23 22:01:07 CEST 2013
+ * Copyright 2013 Jonas Suhr Christensen
+ * jsc@umbraculum.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "directory.h"
+
+#include <dirent.h>
+#include <stdio.h>
+#include <string>
+#include <algorithm>
+#include <vector>
+#include <string.h>
+
+#ifdef WIN32
+#include <direct.h>
+#include <windows.h>
+#endif
+
+#include <hugin.hpp>
+
+#define DRUMKIT_SUFFIX ".xml"
+
+// http://en.wikipedia.org/wiki/Path_(computing)
+#ifdef WIN32
+ #define SEP "\\"
+#else
+ #define SEP "/"
+#endif
+
+Directory::Directory(std::string path)
+{
+ setPath(path);
+}
+
+Directory::~Directory()
+{
+}
+
+std::string Directory::seperator()
+{
+ return SEP;
+}
+
+void Directory::setPath(std::string path)
+{
+ DEBUG(directory, "Setting path to '%s'\n", path.c_str());
+ this->_path = cleanPath(path);
+ refresh();
+}
+
+size_t Directory::count()
+{
+ return _files.size();
+}
+
+void Directory::refresh()
+{
+ _files = listFiles(_path, DIRECTORY_HIDDEN);
+// _files = listFiles(_path);
+}
+
+bool Directory::cd(std::string dir)
+{
+ //TODO: Should this return true or false?
+ if(dir.empty() || dir == ".") return true;
+
+ DEBUG(directory, "Changing to '%s'\n", dir.c_str());
+ if(exists(_path + SEP + dir)) {
+ std::string path = _path + SEP + dir;
+ setPath(path);
+ refresh();
+ return true;
+ } else {
+ return false;
+ }
+}
+
+bool Directory::cdUp()
+{
+ return this->cd("..");
+}
+
+std::string Directory::path()
+{
+ return cleanPath(_path);
+}
+
+Directory::EntryList Directory::entryList()
+{
+ return _files;
+}
+
+#define MAX_FILE_LENGTH 1024
+std::string Directory::cwd() {
+ char path[MAX_FILE_LENGTH];
+ char* c = getcwd(path, MAX_FILE_LENGTH);
+
+ if(c) return c;
+ else return "";
+}
+
+std::string Directory::cleanPath(std::string path)
+{
+ DEBUG(directory, "Cleaning path '%s'\n", path.c_str());
+
+ Directory::Path pathlst = parsePath(path);
+ return Directory::pathToStr(pathlst);
+}
+
+Directory::EntryList Directory::listFiles(std::string path, unsigned char filter)
+{
+ DEBUG(directory, "Listing files in '%s'\n", path.c_str());
+
+ Directory::EntryList entries;
+ DIR *dir = opendir(path.c_str());
+ if(!dir) {
+ DEBUG(directory, "Couldn't open directory '%s\n", path.c_str());
+ return entries;
+ }
+
+ std::vector<std::string> directories;
+ std::vector<std::string> files;
+
+ struct dirent *entry;
+ while((entry = readdir(dir)) != NULL) {
+ std::string name = entry->d_name;
+ if(name == ".") continue;
+
+ if(Directory::isRoot(path) && name == "..") continue;
+
+ unsigned char entryinfo = 0;
+ if(isHidden(path + SEP + name)) {
+ entryinfo |= DIRECTORY_HIDDEN;
+ }
+
+ std::string entrypath = path;
+ entrypath += SEP;
+ entrypath += entry->d_name;
+ if(Directory::isDir(entrypath)) {
+ if(!(entryinfo && filter)) {
+ if(name == "..") directories.push_back(entry->d_name);
+ else directories.push_back(std::string(SEP) + entry->d_name);
+ }
+ }
+ else {
+ int drumkit_suffix_length = strlen(DRUMKIT_SUFFIX);
+ if((int)name.size() < drumkit_suffix_length) continue;
+ if(name.substr(name.length() - drumkit_suffix_length,
+ drumkit_suffix_length) != DRUMKIT_SUFFIX) {
+ continue;
+ }
+
+
+// if(!(entryinfo && filter)) {
+ files.push_back(entry->d_name);
+// }
+ }
+ }
+
+
+#ifdef WIN32
+ DEBUG(directory, "Root is %s\n", Directory::root(path).c_str());
+ DEBUG(directory, "Current path %s is root? %d", path.c_str(), Directory::isRoot(path));
+if(Directory::isRoot(path)) entries.push_back("..");
+#endif
+
+ // sort
+ for(int x = 0; x < (int)directories.size(); x++) {
+ for(int y = 0; y < (int)directories.size(); y++) {
+ if(directories[x] < directories[y]) {
+
+ std::string tmp = directories[x];
+ directories[x] = directories[y];
+ directories[y] = tmp;
+ }
+ }
+ }
+
+ for(int x = 0; x < (int)files.size(); x++) {
+ for(int y = 0; y < (int)files.size(); y++) {
+ if(files[x] < files[y]) {
+
+ std::string tmp = files[x];
+ files[x] = files[y];
+ files[y] = tmp;
+ }
+ }
+ }
+
+
+ for(std::vector<std::string>::iterator it = directories.begin(); it != directories.end(); it++) {
+ entries.push_back(*it);
+ }
+
+ for(std::vector<std::string>::iterator it = files.begin(); it != files.end(); it++) {
+ entries.push_back(*it);
+ }
+
+
+ return entries;
+}
+
+bool Directory::isRoot(std::string path)
+{
+#ifdef WIN32
+ std::transform(path.begin(), path.end(), path.begin(), ::tolower);
+ std::string root_str = Directory::root(path);
+ std::transform(root_str.begin(), root_str.end(), root_str.begin(), ::tolower);
+ // TODO: This is not a correct root calculation, but works with partitions
+ if(path.size() == 2) {
+ if(path == root_str) return true;
+ else return false;
+ } else if (path.size() == 3) {
+ if(path == root_str + SEP) return true;
+ return false;
+ } else {
+ return false;
+ }
+#else
+ if(path == SEP) return true;
+ else return false;
+#endif
+}
+
+std::string Directory::root()
+{
+ return root(cwd());
+}
+
+std::string Directory::root(std::string path)
+{
+#ifdef WIN32
+ if(path.size() < 2) {
+ return "c:"; // just something default when input is bad
+ } else {
+ return path.substr(0, 2);
+ }
+#else
+ return SEP;
+#endif
+}
+
+Directory::DriveList Directory::drives()
+{
+ Directory::DriveList drives;
+#ifdef WIN32
+ unsigned int d = GetLogicalDrives();
+ for(int i = 0; i < 32; i++) {
+ if(d & (1 << i)) {
+ drive_t drive;
+ char name[] = "x:";
+ name[0] = i + 'a';
+
+ drive.name = name;
+ drive.number = i;
+ drives.push_back(drive);
+ }
+ }
+#endif
+ return drives;
+}
+
+bool Directory::isDir()
+{
+ return isDir(_path);
+}
+
+bool Directory::isDir(std::string path)
+{
+ DEBUG(directory, "Is '%s' a directory?\n", path.c_str());
+ struct stat st;
+ if(stat(path.c_str(), &st) == 0) {
+ if((st.st_mode & S_IFDIR) != 0) {
+ DEBUG(directory, "\t...yes!\n");
+ return true;
+ }
+ }
+ DEBUG(directory, "\t...no!\n");
+ return false;
+}
+
+bool Directory::fileExists(std::string filename)
+{
+ return !isDir(_path + SEP + filename);
+}
+
+bool Directory::exists(std::string path)
+{
+ struct stat st;
+ if(stat(path.c_str(), &st) == 0) {
+ return true;
+ } else {
+ return false;
+ }
+}
+
+bool Directory::isHidden(std::string path)
+{
+ DEBUG(directory, "Is '%s' hidden?\n", path.c_str());
+#ifdef WIN32
+ // We dont want to filter out '..' pointing to root of a partition
+ unsigned pos = path.find_last_of("/\\");
+ std::string entry = path.substr(pos+1);
+ if(entry == "..") {
+ return false;
+ }
+
+ DWORD fattribs = GetFileAttributes(path.c_str());
+ if(fattribs & FILE_ATTRIBUTE_HIDDEN) {
+ DEBUG(directory, "\t...yes!\n");
+ return true;
+ }
+ else if(fattribs & FILE_ATTRIBUTE_SYSTEM) {
+ DEBUG(directory, "\t...yes!\n");
+ return true;
+ }
+ else {
+ DEBUG(directory, "\t...no!\n");
+ return false;
+ }
+#else
+ unsigned pos = path.find_last_of("/\\");
+ std::string entry = path.substr(pos+1);
+ if(entry.size() > 1 &&
+ entry.at(0) == '.' &&
+ entry.at(1) != '.') {
+ DEBUG(directory, "\t...yes!\n");
+ return true;
+ }
+ else {
+ DEBUG(directory, "\t...no!\n");
+ return false;
+ }
+#endif
+}
+
+Directory::Path Directory::parsePath(std::string path_str)
+{
+ //TODO: Handle "." input and propably other special cases
+
+ DEBUG(directory, "Parsing path '%s'", path_str.c_str());
+ Directory::Path path;
+
+ std::string current_char;
+ std::string prev_char;
+ std::string dir;
+ for(size_t c = 0; c < path_str.size(); c++) {
+ current_char = path_str.at(c);
+
+ if(current_char == SEP) {
+ if(prev_char == SEP) {
+ dir.clear();
+ prev_char = current_char;
+ continue;
+ } else if(prev_char == ".") {
+ prev_char = current_char;
+ continue;
+ }
+
+ if(!dir.empty()) path.push_back(dir);
+ dir.clear();
+ continue;
+ } else if(current_char == ".") {
+ if(prev_char == ".") {
+ dir.clear();
+ if(!path.empty()) path.pop_back();
+ continue;
+ }
+ }
+
+ dir += current_char;
+ prev_char = current_char;
+ }
+
+ if(!dir.empty()) path.push_back(dir);
+
+ return path;
+}
+
+std::string Directory::pathToStr(Directory::Path& path)
+{
+ std::string cleaned_path;
+ DEBUG(directory, "Number of directories in path is %d\n", (int)path.size());
+
+ for(Directory::Path::iterator it = path.begin();
+ it != path.end(); it++) {
+ std::string dir = *it;
+ DEBUG(directory, "\tDir '%s'\n", dir.c_str());
+#ifdef WIN32
+ if(it != path.begin()) cleaned_path += SEP;
+ cleaned_path += dir;
+#else
+ cleaned_path += SEP + dir;
+#endif
+ }
+
+ DEBUG(directory, "Cleaned path '%s'\n", cleaned_path.c_str());
+
+ if(cleaned_path.empty()) {
+ cleaned_path = Directory::root();
+#ifdef WIN32
+ cleaned_path += SEP;
+#endif
+ }
+
+#ifdef WIN32
+ if(cleaned_path.size() == 2) cleaned_path += SEP;
+#endif
+
+ return cleaned_path;
+}
+
+std::string Directory::pathDirectory(std::string filepath)
+{
+ if(Directory::isDir(filepath)) return filepath;
+
+ Directory::Path path = parsePath(filepath);
+ if(path.size() > 0) path.pop_back();
+
+ return Directory::pathToStr(path);
+}
diff --git a/plugingui/directory.h b/plugingui/directory.h
new file mode 100644
index 0000000..04ed3e7
--- /dev/null
+++ b/plugingui/directory.h
@@ -0,0 +1,93 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * directory.h
+ *
+ * Tue Apr 23 22:01:07 CEST 2013
+ * Copyright 2013 Jonas Suhr Christensen
+ * jsc@umbraculum.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_DIRECTORY_H__
+#define __DRUMGIZMO_DIRECTORY_H__
+
+#include <string>
+#include <list>
+
+#include <libgen.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#define DIRECTORY_HIDDEN 1
+
+class Directory {
+
+ public:
+ typedef struct drive {
+ int number;
+ std::string name;
+ } drive_t;
+
+ typedef std::list<std::string> EntryList;
+ typedef std::list<drive> DriveList;
+
+ Directory(std::string path);
+ ~Directory();
+
+ std::string seperator();
+
+ size_t count();
+ void refresh();
+ std::string path();
+ bool cdUp();
+ bool cd(std::string dir);
+ bool isDir();
+ void setPath(std::string path);
+ bool fileExists(std::string file);
+
+ // Add filter, ie. directories or files only
+ EntryList entryList();
+
+ //void setSorting();
+
+ static std::string cwd();
+ static std::string root();
+ static std::string root(std::string path);
+ static std::string cleanPath(std::string path);
+ static Directory::EntryList listFiles(std::string path, unsigned char filter = 0);
+ static bool isRoot(std::string path);
+ static Directory::DriveList drives();
+ static bool isDir(std::string path);
+ static bool isHidden(std::string entry);
+ static bool exists(std::string path);
+ static std::string pathDirectory(std::string filepath);
+
+ private:
+ std::string _path;
+ EntryList _files;
+ DriveList _drives;
+
+ typedef std::list<std::string> Path;
+ static Path parsePath(std::string path);
+ static std::string pathToStr(Path &path);
+};
+
+#endif/*__DRUMGIZMO_DIRECTORY_H__*/
diff --git a/plugingui/eventhandler.cc b/plugingui/eventhandler.cc
new file mode 100644
index 0000000..cec5fab
--- /dev/null
+++ b/plugingui/eventhandler.cc
@@ -0,0 +1,194 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * eventhandler.cc
+ *
+ * Sun Oct 9 18:58:29 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "eventhandler.h"
+
+#include "window.h"
+#include "painter.h"
+
+GUI::EventHandler::EventHandler(GUI::NativeWindow *n, GUI::Window *w)
+{
+ native = n;
+ window = w;
+
+ last_click = 0;
+ last_was_dbl_click = false;
+}
+
+bool GUI::EventHandler::hasEvent()
+{
+ return native->hasEvent();
+}
+
+GUI::Event *GUI::EventHandler::getNextEvent()
+{
+ return native->getNextEvent();
+}
+
+void GUI::EventHandler::registerCloseHandler(void (*handler)(void *), void *ptr)
+{
+ this->closeHandler = handler;
+ this->closeHandlerPtr = ptr;
+}
+
+void GUI::EventHandler::processEvents()
+{
+ while(hasEvent()) {
+ Painter p(window); // Make sure we only redraw buffer one time.
+
+ Event *event = getNextEvent();
+
+ if(event == NULL) continue;
+
+ // Widget *widget = gctx->widgets[event->window_id];
+ switch(event->type()) {
+ case Event::Repaint:
+ // window->repaint((RepaintEvent*)event);
+ window->redraw();
+ break;
+ case Event::Resize:
+ {
+ // window->repaint((RepaintEvent*)event)
+ ResizeEvent *re = (ResizeEvent*)event;
+ if(re->width != window->width() || re->height != window->height()) {
+ window->resized(re->width, re->height);
+ //window->repaint_r(NULL);
+ }
+ }
+ break;
+ case Event::MouseMove:
+ {
+ MouseMoveEvent *me = (MouseMoveEvent*)event;
+
+ Widget *w = window->find(me->x, me->y);
+ Widget *oldw = window->mouseFocus();
+ if(w != oldw) {
+ // Send focus leave to oldw
+ if(oldw) oldw->mouseLeaveEvent();
+ // Send focus enter to w
+ if(w) w->mouseEnterEvent();
+
+ window->setMouseFocus(w);
+ }
+
+ if(window->buttonDownFocus()) {
+ Widget *w = window->buttonDownFocus();
+ /*
+ if(me->x < w->x()) me->x = w->x();
+ if(me->x > w->x() + w->width()) me->x = w->x() + w->width();
+ if(me->y < w->y()) me->y = w->y();
+ if(me->y > w->y() + w->height()) me->y = w->y() + w->height();
+ */
+ me->x -= w->windowX();
+ me->y -= w->windowY();
+
+ window->buttonDownFocus()->mouseMoveEvent(me);
+ break;
+ }
+
+ if(w) {
+ me->x -= w->windowX();
+ me->y -= w->windowY();
+ w->mouseMoveEvent(me);
+ }
+ }
+ break;
+ case Event::Button:
+ {
+ if(last_was_dbl_click) {
+ last_was_dbl_click = false;
+ continue;
+ }
+ ButtonEvent *be = (ButtonEvent *)event;
+
+ last_was_dbl_click = be->doubleclick;
+
+ Widget *w = window->find(be->x, be->y);
+
+ if(window->buttonDownFocus()) {
+ if(be->direction == -1) {
+ Widget *w = window->buttonDownFocus();
+ /*
+ if(be->x < w->x()) be->x = w->x();
+ if(be->x > w->x() + w->width()) be->x = w->x() + w->width();
+ if(be->y < w->y()) be->y = w->y();
+ if(be->y > w->y() + w->height()) be->y = w->y() + w->height();
+ */
+ be->x -= w->windowX();
+ be->y -= w->windowY();
+
+ w->buttonEvent(be);
+ break;
+ } else {
+ window->setButtonDownFocus(NULL);
+ }
+ }
+
+ if(w) {
+ be->x -= w->windowX();
+ be->y -= w->windowY();
+
+ w->buttonEvent(be);
+
+ if(be->direction == 1) {
+ if(w->catchMouse()) window->setButtonDownFocus(w);
+ }
+
+ if(w->isFocusable()) window->setKeyboardFocus(w);
+ }
+ }
+ break;
+ case Event::Scroll:
+ {
+ ScrollEvent *se = (ScrollEvent *)event;
+
+ Widget *w = window->find(se->x, se->y);
+
+ //printf("scroller (%d,%d) %p\n", se->x, se->y, w);
+
+ if(w) {
+ se->x -= w->windowX();
+ se->y -= w->windowY();
+
+ w->scrollEvent(se);
+ }
+ }
+ break;
+ case Event::Key:
+ // window->key((KeyEvent*)event);
+ // lineedit->keyEvent((KeyEvent*)event);
+ if(window->keyboardFocus())
+ window->keyboardFocus()->keyEvent((KeyEvent*)event);
+ break;
+ case Event::Close:
+ if(closeHandler) closeHandler(closeHandlerPtr);
+ //delete window;
+ //window = NULL;
+ break;
+ }
+ delete event;
+ }
+}
diff --git a/plugingui/eventhandler.h b/plugingui/eventhandler.h
new file mode 100644
index 0000000..028418d
--- /dev/null
+++ b/plugingui/eventhandler.h
@@ -0,0 +1,62 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * eventhandler.h
+ *
+ * Sun Oct 9 18:58:29 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_EVENTHANDLER_H__
+#define __DRUMGIZMO_EVENTHANDLER_H__
+
+#include "guievent.h"
+#include "nativewindow.h"
+//#include "window.h"
+
+namespace GUI {
+class Window;
+
+class EventHandler {
+public:
+ EventHandler(NativeWindow *native, Window *window);
+
+ void processEvents();
+
+ bool hasEvent();
+ Event *getNextEvent();
+
+ void registerCloseHandler(void (*handler)(void *), void *ptr);
+
+private:
+ Window *window;
+ int last_click;
+ void (*closeHandler)(void *);
+ void *closeHandlerPtr;
+
+ // Used to ignore mouse button release after a double click.
+ bool last_was_dbl_click;
+
+ NativeWindow *native;
+};
+
+};
+
+#endif/*__DRUMGIZMO_EVENTHANDLER_H__*/
diff --git a/plugingui/filebrowser.cc b/plugingui/filebrowser.cc
new file mode 100644
index 0000000..f025c25
--- /dev/null
+++ b/plugingui/filebrowser.cc
@@ -0,0 +1,268 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * filebrowser.cc
+ *
+ * Mon Feb 25 21:09:44 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "filebrowser.h"
+
+#include "painter.h"
+#include "button.h"
+
+#include "directory.h"
+
+#include <sys/types.h>
+#include <dirent.h>
+#include <stdio.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <hugin.hpp>
+
+#ifdef __MINGW32__
+#include <direct.h>
+#endif
+
+struct GUI::FileBrowser::private_data {
+ GUI::LineEdit *lineedit;
+ GUI::ListBox *listbox;
+ void (*filesel_handler)(void *, std::string);
+ void *ptr;
+ Directory *dir;
+#ifdef WIN32
+ bool above_root;
+ bool in_root;
+#endif
+};
+
+static void cancel(void *ptr)
+{
+ GUI::FileBrowser *fp = (GUI::FileBrowser *)ptr;
+ fp->hide();
+}
+
+static void changeDir(void *ptr)
+{
+ struct GUI::FileBrowser::private_data *prv =
+ (struct GUI::FileBrowser::private_data *) ptr;
+
+ GUI::ListBox *lb = prv->listbox;
+ GUI::LineEdit *le = prv->lineedit;
+ std::string value = lb->selectedValue();
+ Directory* dir = prv->dir;
+
+// if(!Directory::isDir(dir->path() + dir->seperator())) {
+// return;
+// }
+
+ lb->clear();
+
+ INFO(filebrowser, "Changing path to '%s'\n",
+ (dir->path() + dir->seperator() + value).c_str());
+
+#ifdef WIN32
+ if(prv->above_root && !value.empty()) {
+ dir->setPath(value + dir->seperator());
+ value.clear();
+ prv->above_root = false;
+ }
+#endif
+
+ if(value.empty() && !dir->isDir() && Directory::exists(dir->path())) {
+ DEBUG(filebrowser, "Selecting file '%s'\n", dir->path().c_str());
+ if(prv->filesel_handler) prv->filesel_handler(prv->ptr, dir->path().c_str());
+ return;
+ }
+
+ if(!value.empty() && dir->fileExists(value)) {
+ std::string file = dir->path() + dir->seperator() + value;
+ DEBUG(filebrowser, "Selecting file '%s'\n", file.c_str());
+ if(prv->filesel_handler) prv->filesel_handler(prv->ptr, file);
+ return;
+ }
+
+ std::vector<GUI::ListBoxBasic::Item> items;
+
+#ifdef WIN32
+ if(Directory::isRoot(dir->path()) && value == "..") {
+ DEBUG(filebrowser, "Showing partitions...\n");
+ Directory::DriveList entries = dir->drives();
+ for(Directory::DriveList::iterator it = entries.begin();
+ it != entries.end(); it++) {
+ GUI::ListBoxBasic::Item item;
+ std::string name = (*it).name;
+ item.name = name;
+ item.value = name;
+ items.push_back(item);
+ }
+ prv->above_root = true;
+ } else {
+#endif
+
+ if(!value.empty() && !dir->cd(value)) {
+ DEBUG(filebrowser, "Error changing to '%s'\n",
+ (dir->path() + dir->seperator() + value).c_str());
+ return;
+ }
+
+ Directory::EntryList entries = dir->entryList();
+
+ if(entries.empty()) {
+ dir->cdUp();
+ entries = dir->entryList();
+ }
+
+ DEBUG(filebrowser, "Setting path of lineedit to %s\n",
+ dir->path().c_str());
+ le->setText(dir->path());
+
+ for(Directory::EntryList::iterator it = entries.begin();
+ it != entries.end(); it++) {
+ GUI::ListBoxBasic::Item item;
+ std::string name = *it;
+ item.name = name;
+ item.value = name;
+ items.push_back(item);
+ }
+#ifdef WIN32
+ }
+#endif
+ lb->addItems(items);
+}
+
+static void handleKeyEvent(void *ptr) {
+ struct GUI::FileBrowser::private_data *prv =
+ (struct GUI::FileBrowser::private_data *) ptr;
+
+ GUI::ListBox *lb = prv->listbox;
+ lb->clearSelectedValue();
+ GUI::LineEdit *le = prv->lineedit;
+
+ std::string value = le->text();
+ if(value.size() > 1 && value[0] == '@') {
+ DEBUG(filebrowser, "Selecting ref-file '%s'\n", value.c_str());
+ if(prv->filesel_handler) {
+ prv->filesel_handler(prv->ptr, value);
+ }
+ return;
+ }
+
+ prv->dir->setPath(le->text());
+ changeDir(ptr);
+}
+
+GUI::FileBrowser::FileBrowser(GUI::Widget *parent)
+ : GUI::Widget(parent),
+ lbl_path(this), lineedit(this), listbox(this), btn_sel(this), btn_esc(this),
+ back(":bg.png")
+{
+ prv = new struct GUI::FileBrowser::private_data();
+ prv->filesel_handler = NULL;
+
+ prv->dir = new Directory(Directory::cwd());
+#ifdef WIN32
+ prv->above_root = false;
+#endif
+
+ lbl_path.setText("Path:");
+
+// lineedit.setReadOnly(true);
+ prv->lineedit = &lineedit;
+ prv->lineedit->registerEnterPressedHandler(handleKeyEvent, prv);
+
+ prv->listbox = &listbox;
+ listbox.registerSelectHandler(changeDir, prv);
+
+ btn_sel.setText("Select");
+ btn_sel.registerClickHandler(changeDir, prv);
+
+ btn_esc.setText("Cancel");
+ btn_esc.registerClickHandler(cancel, this);
+
+ changeDir(prv);
+
+ resize(200, 190);
+}
+
+GUI::FileBrowser::~FileBrowser()
+{
+ // delete prv->listbox;
+ delete prv;
+}
+
+void GUI::FileBrowser::setPath(std::string path)
+{
+ INFO(filebrowser, "Setting path to '%s'\n", path.c_str());
+ if(path.empty()) path = Directory::cwd();
+
+ prv->dir->setPath(Directory::pathDirectory(path));
+ prv->listbox->clear();
+
+ changeDir(prv);
+}
+
+void GUI::FileBrowser::resize(int w, int h)
+{
+ GUI::Widget::resize(w,h);
+
+ int offset = 0;
+ int brd = 5; // border
+ int btn_h = 30;
+
+ offset += brd;
+
+ lbl_path.move(0, offset);
+ lineedit.move(60, offset);
+
+ offset += btn_h;
+
+ lbl_path.resize(60, btn_h);
+ lineedit.resize(w - 60 - brd, btn_h);
+
+ offset += brd;
+
+ listbox.move(brd, offset);
+ listbox.resize(w - 1 - 2*brd, h - btn_h - 2*brd - offset);
+
+ btn_esc.move(brd, h - btn_h - brd);
+ btn_esc.resize((w - 1 - 2*brd) / 2 - brd / 2, btn_h);
+
+ btn_sel.move(brd + w / 2 - brd / 2, h - btn_h - brd);
+ btn_sel.resize((w - 1 - 2*brd) / 2, btn_h);
+}
+
+void GUI::FileBrowser::registerFileSelectHandler(void (*handler)(void *,
+ std::string),
+ void *ptr)
+{
+ prv->filesel_handler = handler;
+ prv->ptr = ptr;
+}
+
+void GUI::FileBrowser::repaintEvent(GUI::RepaintEvent *e)
+{
+ Painter p(this);
+ p.drawImageStretched(0,0, &back, width(), height());
+}
diff --git a/plugingui/filebrowser.h b/plugingui/filebrowser.h
new file mode 100644
index 0000000..6583b53
--- /dev/null
+++ b/plugingui/filebrowser.h
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * filebrowser.h
+ *
+ * Mon Feb 25 21:09:43 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_FILEBROWSER_H__
+#define __DRUMGIZMO_FILEBROWSER_H__
+
+#include "widget.h"
+
+#include "button.h"
+#include "listbox.h"
+#include "lineedit.h"
+#include "label.h"
+#include "image.h"
+#include "directory.h"
+
+namespace GUI {
+
+class FileBrowser : public Widget {
+public:
+ struct private_data;
+
+ FileBrowser(Widget *parent);
+ ~FileBrowser();
+
+ void setPath(std::string path);
+
+ bool isFocusable() { return true; }
+
+ void registerFileSelectHandler(void (*handler)(void *, std::string),
+ void *ptr);
+
+ virtual void repaintEvent(RepaintEvent *e);
+
+ virtual void resize(int w, int h);
+
+private:
+ struct private_data *prv;
+
+ GUI::Label lbl_path;
+ GUI::LineEdit lineedit;
+
+ GUI::ListBox listbox;
+
+ GUI::Button btn_sel;
+ GUI::Button btn_esc;
+
+ Image back;
+};
+
+};
+
+#endif/*__DRUMGIZMO_FILEBROWSER_H__*/
diff --git a/plugingui/font.cc b/plugingui/font.cc
new file mode 100644
index 0000000..828286c
--- /dev/null
+++ b/plugingui/font.cc
@@ -0,0 +1,131 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * font.cc
+ *
+ * Sat Nov 12 11:13:41 CET 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "font.h"
+
+#ifdef X11
+#include <X11/Xlib.h>
+#endif/*X11*/
+
+GUI::Font::Font(std::string fontfile)
+ : img_font(fontfile)
+{
+ int px = 0;
+ int c;
+ for(c = 0; c < 255 && px < (int)img_font.width(); c++) {
+ character_offset[c] = px + 1;
+ character_pre_bias[c] = 0;
+ character_post_bias[c] = 0;
+ if(c > 0) {
+ character_width[c - 1] =
+ character_offset[c] - character_offset[c - 1] - 1;
+ }
+ px++;
+ GUI::Colour c;
+ while(px < (int)img_font.width()) {
+ c = img_font.getPixel(px, 0);
+ // Find next purple pixel in top row:
+ if(c.red == 1 && c.green == 0 && c.blue == 1 && c.alpha == 1) break;
+ px++;
+ }
+ }
+ c++;
+ character_width[c - 1] = character_offset[c] - character_offset[c - 1] - 1;
+}
+
+void GUI::Font::setFace(std::string face)
+{
+ face = face;
+}
+
+std::string GUI::Font::face()
+{
+ return "";//face;
+}
+
+void GUI::Font::setSize(size_t points)
+{
+ points = points;
+}
+
+size_t GUI::Font::size()
+{
+ return 0;
+}
+
+size_t GUI::Font::textWidth(std::string text)
+{
+ size_t len = 0;
+
+ for(size_t i = 0; i < text.length(); i++) {
+ unsigned int cha = text[i];
+ len += character_width[(char)cha] + 1 + character_post_bias[(char)cha];
+ }
+
+ return len;
+}
+
+size_t GUI::Font::textHeight(std::string text)
+{
+ return img_font.height();
+}
+
+GUI::PixelBufferAlpha *GUI::Font::render(std::string text)
+{
+ int border = 1;
+ PixelBufferAlpha *pb =
+ new PixelBufferAlpha(textWidth(text), textHeight(text));
+
+ int x_offset = 0;
+ for(size_t i = 0; i < text.length(); i++) {
+ unsigned int cha = text[i];
+ for(size_t x = 0; x < character_width[(char)cha]; x++) {
+ for(size_t y = 0; y < img_font.height(); y++) {
+ Colour c = img_font.getPixel(x + (character_offset[(char)cha]), y);
+ pb->setPixel(x + x_offset + character_pre_bias[(char)cha], y,
+ c.red * 255, c.green * 255, c.blue * 255, c.alpha * 255);
+ }
+ }
+ x_offset += character_width[(char)cha] + border +
+ character_post_bias[(char)cha];
+ }
+
+ return pb;
+}
+
+#ifdef TEST_FONT
+//deps:
+//cflags:
+//libs:
+#include "test.h"
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+
+TEST_END;
+
+#endif/*TEST_FONT*/
diff --git a/plugingui/font.h b/plugingui/font.h
new file mode 100644
index 0000000..b47fbde
--- /dev/null
+++ b/plugingui/font.h
@@ -0,0 +1,63 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * font.h
+ *
+ * Sat Nov 12 11:13:41 CET 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_FONT_H__
+#define __DRUMGIZMO_FONT_H__
+
+#include <string>
+#include <map>
+
+#include "pixelbuffer.h"
+#include "image.h"
+
+namespace GUI {
+
+class Font {
+public:
+ Font(std::string fontfile = ":font.png");
+
+ void setFace(std::string face);
+ std::string face();
+
+ void setSize(size_t points);
+ size_t size();
+
+ size_t textWidth(std::string text);
+ size_t textHeight(std::string text = "");
+
+ PixelBufferAlpha *render(std::string text);
+
+private:
+ Image img_font;
+
+ std::map<char, int> character_offset;
+ std::map<char, size_t> character_width;
+ std::map<char, int> character_pre_bias;
+ std::map<char, int> character_post_bias;
+};
+
+};
+#endif/*__DRUMGIZMO_FONT_H__*/
diff --git a/plugingui/guievent.h b/plugingui/guievent.h
new file mode 100644
index 0000000..4732101
--- /dev/null
+++ b/plugingui/guievent.h
@@ -0,0 +1,141 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * event.h
+ *
+ * Sun Oct 9 16:11:47 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_GUI_EVENT_H__
+#define __DRUMGIZMO_GUI_EVENT_H__
+
+#include <unistd.h>
+
+#include <string>
+
+#ifdef X11
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#endif/*X11*/
+
+namespace GUI {
+
+class Event {
+public:
+ typedef enum {
+ MouseMove,
+ Repaint,
+ Button,
+ Scroll,
+ Key,
+ Close,
+ Resize
+ } Type;
+ virtual ~Event() {}
+
+ virtual Type type() = 0;
+
+#ifdef X11
+ ::Window window_id;
+#endif/*X11*/
+};
+
+class MouseMoveEvent : public Event {
+public:
+ Type type() { return MouseMove; }
+
+ int x;
+ int y;
+};
+
+class ButtonEvent : public Event {
+public:
+ Type type() { return Button; }
+
+ int x;
+ int y;
+
+ int direction;
+ int button;
+ int doubleclick;
+};
+
+class ScrollEvent : public Event {
+public:
+ Type type() { return Scroll; }
+
+ int x;
+ int y;
+
+ int delta;
+};
+
+class RepaintEvent : public Event {
+public:
+ Type type() { return Repaint; }
+
+ int x;
+ int y;
+ size_t width;
+ size_t height;
+};
+
+class KeyEvent : public Event {
+public:
+ Type type() { return Key; }
+
+ int direction;
+ int keycode;
+ std::string text;
+
+ enum {
+ KEY_UNKNOWN =-1,
+ KEY_LEFT = 1,
+ KEY_RIGHT = 2,
+ KEY_UP = 3,
+ KEY_DOWN = 4,
+ KEY_DELETE = 5,
+ KEY_BACKSPACE = 6,
+ KEY_HOME = 7,
+ KEY_END = 8,
+ KEY_PGDOWN = 9,
+ KEY_PGUP = 10,
+ KEY_ENTER = 11,
+ KEY_CHARACTER = 0xffff // character data is stored in 'text'
+ };
+};
+
+class CloseEvent : public Event {
+public:
+ Type type() { return Close; }
+};
+
+class ResizeEvent : public Event {
+public:
+ Type type() { return Resize; }
+
+ size_t width;
+ size_t height;
+};
+
+};
+
+#endif/*__DRUMGIZMO_GUI_EVENT_H__*/
diff --git a/plugingui/image.cc b/plugingui/image.cc
new file mode 100644
index 0000000..65b8242
--- /dev/null
+++ b/plugingui/image.cc
@@ -0,0 +1,119 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * image.cc
+ *
+ * Sat Mar 16 15:05:09 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "image.h"
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdint.h>
+
+#include <hugin.hpp>
+
+#include "resource.h"
+// http://blog.hammerian.net/2009/reading-png-images-from-memory/
+
+#include "lodepng/lodepng.h"
+
+GUI::Image::Image(const char* data, size_t size)
+{
+ load(data, size);
+}
+
+GUI::Image::Image(std::string filename)
+{
+ GUI::Resource rc(filename);
+ load(rc.data(), rc.size());
+}
+
+GUI::Image::~Image()
+{
+ free(image_data);
+}
+
+void GUI::Image::setError(int err)
+{
+ GUI::Resource rc(":png_error");
+
+ const unsigned char *p = (const unsigned char *)rc.data();
+
+ uint32_t iw, ih;
+
+ memcpy(&iw, p, sizeof(uint32_t)); p += sizeof(uint32_t);
+ memcpy(&ih, p, sizeof(uint32_t)); p += sizeof(uint32_t);
+
+ w = iw;
+ h = ih;
+
+ DEBUG(image, "w:%d, h:%d\n", (int)w, (int)h);
+
+ image_data = (unsigned char*)malloc(rc.size() - 8);
+ memcpy(image_data, p, rc.size() - 8);
+}
+
+void GUI::Image::load(const char* data, size_t size)
+{
+ //unsigned lodepng_decode32(unsigned char** out, unsigned* w, unsigned* h,
+ // const unsigned char* in, size_t insize);
+ unsigned iw, ih;
+ unsigned res = lodepng_decode32((unsigned char**)&image_data, &iw, &ih,
+ (const unsigned char*)data, size);
+ w = iw;
+ h = ih;
+
+ if(res != 0) {
+ ERR(image, "[read_png_file] Error during init_io");
+ setError(3);
+ return;
+ }
+}
+
+size_t GUI::Image::width()
+{
+ return w;
+}
+
+size_t GUI::Image::height()
+{
+ return h;
+}
+
+GUI::Colour GUI::Image::getPixel(size_t x, size_t y)
+{
+ if(x > width() || y > height()) return GUI::Colour(0,0,0,0);
+ unsigned char *ptr = &image_data[(x + y * width()) * 4];
+ float r = ptr[0];
+ float g = ptr[1];
+ float b = ptr[2];
+ float a = ptr[3];
+ GUI::Colour c(r / 255.0,
+ g / 255.0,
+ b / 255.0,
+ a / 255.0);
+ return c;
+}
diff --git a/plugingui/image.h b/plugingui/image.h
new file mode 100644
index 0000000..cec1518
--- /dev/null
+++ b/plugingui/image.h
@@ -0,0 +1,59 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * image.h
+ *
+ * Sat Mar 16 15:05:08 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_IMAGE_H__
+#define __DRUMGIZMO_IMAGE_H__
+
+#include <string>
+
+#include "colour.h"
+#include "resource.h"
+
+namespace GUI {
+
+class Image {
+public:
+ Image(const char* data, size_t size);
+ Image(std::string filename);
+ ~Image();
+
+ size_t width();
+ size_t height();
+
+ Colour getPixel(size_t x, size_t y);
+
+private:
+ void setError(int err);
+
+ void load(const char* data, size_t size);
+
+ size_t w, h;
+ unsigned char *image_data;
+};
+
+};
+
+#endif/*__DRUMGIZMO_IMAGE_H__*/
diff --git a/plugingui/knob.cc b/plugingui/knob.cc
new file mode 100644
index 0000000..b843106
--- /dev/null
+++ b/plugingui/knob.cc
@@ -0,0 +1,188 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * knob.cc
+ *
+ * Thu Feb 28 07:37:27 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "knob.h"
+
+#include "painter.h"
+
+#include <hugin.hpp>
+#include <stdio.h>
+
+// M_PI is not defined in math.h if __STRICT_ANSI__ is defined.
+#ifdef __STRICT_ANSI__
+#undef __STRICT_ANSI__
+#endif
+#include <math.h>
+
+namespace GUI {
+
+Knob::Knob(Widget *parent)
+ : Widget(parent)
+ , img_knob(":knob.png")
+{
+ state = up;
+
+ maximum = 1.0;
+ minimum = 0.0;
+
+ currentValue = minimum;
+
+ mouse_offset_x = 0;
+}
+
+void Knob::setValue(float value)
+{
+ internalSetValue(value);
+}
+
+float Knob::value()
+{
+ return currentValue;
+}
+
+void Knob::scrollEvent(ScrollEvent *e)
+{
+ float value = currentValue - (e->delta / 200.0);
+ internalSetValue(value);
+}
+
+void Knob::mouseMoveEvent(MouseMoveEvent *e)
+{
+ if(state == down) {
+ if(mouse_offset_x == (e->x + -1 * e->y)) {
+ return;
+ }
+
+ float dval = mouse_offset_x - (e->x + -1 * e->y);
+ float value = currentValue - (dval / 300.0);
+
+ internalSetValue(value);
+
+ mouse_offset_x = e->x + -1 * e->y;
+ }
+}
+
+void Knob::keyEvent(KeyEvent *e)
+{
+ if(e->direction != -1) {
+ return;
+ }
+
+ float value = currentValue;
+ switch(e->keycode) {
+ case KeyEvent::KEY_UP:
+ value += 0.01;
+ break;
+ case KeyEvent::KEY_DOWN:
+ value -= 0.01;
+ break;
+ case KeyEvent::KEY_RIGHT:
+ value += 0.01;
+ break;
+ case KeyEvent::KEY_LEFT:
+ value -= 0.01;
+ break;
+ case KeyEvent::KEY_HOME:
+ value = 0;
+ break;
+ case KeyEvent::KEY_END:
+ value = 1;
+ break;
+ default:
+ break;
+ }
+
+ internalSetValue(value);
+}
+
+void Knob::buttonEvent(ButtonEvent *e)
+{
+ if(e->direction == 1) {
+ state = down;
+ mouse_offset_x = e->x + -1*e->y;
+ }
+ if(e->direction == -1) {
+ state = up;
+ mouse_offset_x = e->x + -1*e->y;
+ clicked();
+ }
+}
+
+void Knob::repaintEvent(RepaintEvent *e)
+{
+ int diameter = (width()>height()?height():width());
+ int radius = diameter / 2;
+ int center_x = width() / 2;
+ int center_y = height() / 2;
+
+ Painter p(this);
+
+ p.clear();
+ p.drawImageStretched(0, 0, &img_knob, diameter, diameter);
+
+ char buf[64];
+ sprintf(buf, "%.2f", currentValue * maximum);
+ Font font;
+ p.drawText(center_x - font.textWidth(buf) / 2 + 1,
+ center_y + font.textHeight(buf) / 2 + 1, font, buf);
+
+ // Make it start from 20% and stop at 80%
+ double padval = currentValue * 0.8 + 0.1;
+
+ double from_x = sin((-1 * padval + 1) * 2 * M_PI) * radius * 0.6;
+ double from_y = cos((-1 * padval + 1) * 2 * M_PI) * radius * 0.6;
+
+ double to_x = sin((-1 * padval + 1) * 2 * M_PI) * radius * 0.8;
+ double to_y = cos((-1 * padval + 1) * 2 * M_PI) * radius * 0.8;
+
+ // Draw "fat" line by drawing 9 lines with moved start/ending points.
+ p.setColour(Colour(1, 0, 0, 1));
+ for(int _x = -1; _x < 2; _x++) {
+ for(int _y = -1; _y < 2; _y++) {
+ p.drawLine(from_x + center_x + _x,
+ from_y + center_y + _y,
+ to_x + center_x + _x,
+ to_y + center_y + _y);
+
+ }
+ }
+}
+
+void Knob::internalSetValue(float value)
+{
+ if(value < minimum) value = minimum;
+ if(value > maximum) value = maximum;
+
+ if(value == currentValue) {
+ return;
+ }
+
+ currentValue = value;
+ valueChangedNotifier.notify(currentValue);
+ repaintEvent(NULL);
+}
+
+} // GUI::
diff --git a/plugingui/knob.h b/plugingui/knob.h
new file mode 100644
index 0000000..da03710
--- /dev/null
+++ b/plugingui/knob.h
@@ -0,0 +1,80 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * knob.h
+ *
+ * Thu Feb 28 07:37:27 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#pragma once
+
+#include "widget.h"
+
+#include "image.h"
+
+#include "notifier.h"
+
+namespace GUI {
+
+class Knob : public Widget {
+public:
+ Knob(Widget *parent);
+
+ bool catchMouse() override { return true; }
+ bool isFocusable() override { return true; }
+
+ void setValue(float value);
+ float value();
+
+ Notifier<float> valueChangedNotifier; // (float newValue)
+
+protected:
+ virtual void clicked() {}
+
+ // From Widget:
+ virtual void repaintEvent(RepaintEvent *e) override;
+ virtual void buttonEvent(ButtonEvent *e) override;
+ virtual void mouseMoveEvent(MouseMoveEvent *e) override;
+ virtual void scrollEvent(ScrollEvent *e) override;
+ virtual void keyEvent(KeyEvent *e) override;
+
+private:
+ //! Sets the internal value and sends out the changed notification.
+ void internalSetValue(float value);
+
+ typedef enum {
+ up,
+ down
+ } state_t;
+
+ state_t state;
+
+ float currentValue;
+ float maximum;
+ float minimum;
+
+ Image img_knob;
+
+ int mouse_offset_x;
+};
+
+} // GUI::
+
diff --git a/plugingui/label.cc b/plugingui/label.cc
new file mode 100644
index 0000000..be37d82
--- /dev/null
+++ b/plugingui/label.cc
@@ -0,0 +1,57 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * label.cc
+ *
+ * Sun Oct 9 13:02:18 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "label.h"
+
+#include "painter.h"
+#include "guievent.h"
+
+namespace GUI {
+
+Label::Label(GUI::Widget *parent)
+ : Widget(parent)
+{
+}
+
+void Label::setText(std::string text)
+{
+ _text = text;
+ repaintEvent(NULL);
+}
+
+void Label::repaintEvent(GUI::RepaintEvent *e)
+{
+ Painter p(this);
+
+ p.clear();
+
+ p.setColour(Colour(1));
+
+ Font font(":fontemboss.png");
+ p.drawText(10, (height() + font.textHeight()) / 2, font, _text, true);
+}
+
+} // GUI::
diff --git a/plugingui/label.h b/plugingui/label.h
new file mode 100644
index 0000000..707cdb1
--- /dev/null
+++ b/plugingui/label.h
@@ -0,0 +1,51 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * label.h
+ *
+ * Sun Oct 9 13:02:17 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#pragma once
+
+#include "widget.h"
+
+#include <string>
+
+namespace GUI {
+
+class RepaintEvent;
+
+class Label : public Widget {
+public:
+ Label(Widget *parent);
+
+ void setText(std::string text);
+
+protected:
+ // From Widget:
+ virtual void repaintEvent(RepaintEvent *e) override;
+
+private:
+ std::string _text;
+};
+
+} // GUI::
diff --git a/plugingui/led.cc b/plugingui/led.cc
new file mode 100644
index 0000000..d26a0de
--- /dev/null
+++ b/plugingui/led.cc
@@ -0,0 +1,106 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * led.cc
+ *
+ * Sat Oct 15 19:12:33 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "led.h"
+
+#include "painter.h"
+
+GUI::LED::LED(Widget *parent)
+ : GUI::Widget(parent)
+{
+ state = off;
+}
+
+void GUI::LED::setState(GUI::LED::state_t state)
+{
+ if(this->state != state) {
+ this->state = state;
+ repaintEvent(NULL);
+ }
+}
+
+void GUI::LED::repaintEvent(GUI::RepaintEvent *e)
+{
+ size_t h = height() - 1;
+ size_t w = width() - 1;
+
+ Painter p(this);
+ float alpha = 0.9;
+ switch(state) {
+ case red:
+ p.setColour(Colour(1, 0, 0,alpha));
+ break;
+ case green:
+ p.setColour(Colour(0, 1, 0, alpha));
+ break;
+ case blue:
+ p.setColour(Colour(0, 0, 1, alpha));
+ break;
+ case off:
+ p.setColour(Colour(0.2, 0.2, 0.2, alpha));
+ break;
+ }
+
+ size_t size = w / 2;
+ if(h / 2 < size) size = h / 2;
+ p.drawFilledCircle(w/2, h/2, size);
+
+ switch(state) {
+ case red:
+ p.setColour(Colour(0.4, 0, 0,alpha));
+ break;
+ case green:
+ p.setColour(Colour(0, 0.4, 0, alpha));
+ break;
+ case blue:
+ p.setColour(Colour(0, 0, 0.4, alpha));
+ break;
+ case off:
+ p.setColour(Colour(0.1, 0.1, 0.1, alpha));
+ break;
+ }
+ p.drawCircle(w/2, h/2, size);
+
+ p.setColour(Colour(1,alpha));
+ p.drawFilledCircle(w/3, h/3, size / 6);
+}
+
+#ifdef TEST_LED
+//Additional dependency files
+//deps:
+//Required cflags (autoconf vars may be used)
+//cflags:
+//Required link options (autoconf vars may be used)
+//libs:
+#include "test.h"
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+
+TEST_END;
+
+#endif/*TEST_LED*/
diff --git a/plugingui/led.h b/plugingui/led.h
new file mode 100644
index 0000000..7bbd59a
--- /dev/null
+++ b/plugingui/led.h
@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * led.h
+ *
+ * Sat Oct 15 19:12:33 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_LED_H__
+#define __DRUMGIZMO_LED_H__
+
+#include "widget.h"
+
+namespace GUI {
+
+class LED : public Widget {
+public:
+ typedef enum {
+ red,
+ green,
+ blue,
+ off
+ } state_t;
+
+ LED(Widget *parent);
+
+ void setState(state_t state);
+
+ //protected:
+ void repaintEvent(RepaintEvent *e);
+
+private:
+ state_t state;
+};
+
+};
+
+#endif/*__DRUMGIZMO_LED_H__*/
diff --git a/plugingui/lineedit.cc b/plugingui/lineedit.cc
new file mode 100644
index 0000000..5e1eb9b
--- /dev/null
+++ b/plugingui/lineedit.cc
@@ -0,0 +1,239 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * lineedit.cc
+ *
+ * Sun Oct 9 13:01:52 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "lineedit.h"
+
+#include <stdio.h>
+
+#include "window.h"
+
+#include <assert.h>
+
+#include <hugin.hpp>
+
+#define BORDER 10
+
+GUI::LineEdit::LineEdit(Widget *parent)
+ : GUI::Widget(parent)
+{
+ pos = 0;
+ offsetpos = 0;
+ setReadOnly(false);
+
+ box.topLeft = new Image(":widget_tl.png");
+ box.top = new Image(":widget_t.png");
+ box.topRight = new Image(":widget_tr.png");
+ box.left = new Image(":widget_l.png");
+ box.right = new Image(":widget_r.png");
+ box.bottomLeft = new Image(":widget_bl.png");
+ box.bottom = new Image(":widget_b.png");
+ box.bottomRight = new Image(":widget_br.png");
+ box.center = new Image(":widget_c.png");
+
+ handler = NULL;
+}
+
+void GUI::LineEdit::registerEnterPressedHandler(void (*handler)(void *), void *ptr)
+{
+ this->handler = handler;
+ this->ptr = ptr;
+}
+
+void GUI::LineEdit::setReadOnly(bool ro)
+{
+ readonly = ro;
+}
+
+bool GUI::LineEdit::readOnly()
+{
+ return readonly;
+}
+
+void GUI::LineEdit::setText(std::string text)
+{
+ _text = text;
+ pos = text.size();
+
+ repaintEvent(NULL);
+ textChanged();
+}
+
+std::string GUI::LineEdit::text()
+{
+ return _text;
+}
+
+void GUI::LineEdit::buttonEvent(ButtonEvent *e)
+{
+ if(readOnly()) return;
+
+
+ if(e->direction == 1) {
+ for(int i = 0; i < (int)_visibletext.length(); i++) {
+ if(e->x < (int)(font.textWidth(_visibletext.substr(0, i)) + BORDER)) {
+ pos = i + offsetpos;
+ break;
+ }
+ }
+ repaintEvent(NULL);
+ }
+}
+
+void GUI::LineEdit::keyEvent(GUI::KeyEvent *e)
+{
+ if(readOnly()) return;
+
+ bool change = false;
+
+ if(e->direction == -1) {
+
+ if(e->keycode == GUI::KeyEvent::KEY_LEFT) {
+ if(pos) pos--;
+ if(offsetpos >= pos) walkstate = WALK_LEFT;
+
+ } else if(e->keycode == GUI::KeyEvent::KEY_HOME) {
+ pos = 0;
+
+ } else if(e->keycode == GUI::KeyEvent::KEY_END) {
+ pos = _text.length();
+
+ } else if(e->keycode == GUI::KeyEvent::KEY_RIGHT) {
+ if(pos < _text.length()) pos++;
+ if(offsetpos + _visibletext.length() <= pos &&
+ pos < _text.length()) walkstate = WALK_RIGHT;
+
+ } else if(e->keycode == GUI::KeyEvent::KEY_DELETE) {
+ if(pos < _text.length()) {
+ std::string t = _text.substr(0, pos);
+ t += _text.substr(pos + 1, std::string::npos);
+ _text = t;
+ change = true;
+ }
+
+ } else if(e->keycode == GUI::KeyEvent::KEY_BACKSPACE) {
+ if(pos > 0) {
+ std::string t = _text.substr(0, pos - 1);
+ t += _text.substr(pos, std::string::npos);
+ _text = t;
+ pos--;
+ change = true;
+ }
+
+ } else if(e->keycode == GUI::KeyEvent::KEY_CHARACTER) {
+ std::string pre = _text.substr(0, pos);
+ std::string post = _text.substr(pos, std::string::npos);
+ _text = pre + e->text + post;
+ change = true;
+ pos++;
+
+ } else if(e->keycode == GUI::KeyEvent::KEY_ENTER) {
+ if(handler) handler(ptr);
+ }
+ repaintEvent(NULL);
+ }
+
+ if(change) textChanged();
+}
+
+void GUI::LineEdit::repaintEvent(GUI::RepaintEvent *e)
+{
+ Painter p(this);
+
+ p.clear();
+
+ int w = width();
+ int h = height();
+ if(w == 0 || h == 0) return;
+ p.drawBox(0, 0, &box, w, h);
+
+ p.setColour(GUI::Colour(183.0/255.0, 219.0/255.0 , 255.0/255.0, 1));
+
+ if(walkstate == WALK_LEFT) {
+ _visibletext = _text.substr(pos, std::string::npos);
+ offsetpos = pos;
+ }
+ else if(walkstate == WALK_RIGHT) {
+ int d = (offsetpos < _text.length()) ? 1 : 0;
+ _visibletext = _text.substr(offsetpos + d);
+ offsetpos = offsetpos + d;
+ }
+ else {
+ _visibletext = _text;
+ offsetpos = 0;
+ }
+ while(true) {
+ int textwidth = font.textWidth(_visibletext);
+ if(textwidth > w - BORDER - 4 + 3) {
+ if(walkstate == WALK_LEFT) {
+ _visibletext = _visibletext.substr(0, _visibletext.length()-1);
+ }
+ else if(walkstate == WALK_RIGHT) {
+ _visibletext = _visibletext.substr(0, _visibletext.length()-1);
+ }
+ else {
+ if(offsetpos < pos) {
+ _visibletext = _visibletext.substr(1);
+ offsetpos++;
+ }
+ else {
+ _visibletext = _visibletext.substr(0, _visibletext.length() - 1);
+ }
+ }
+ }
+ else {
+ break;
+ }
+ }
+
+ walkstate = NOOP;
+
+ p.drawText(BORDER - 4 + 3, height()/2+5 + 1 + 1 + 1, font, _visibletext);
+
+ if(readOnly()) return;
+
+ if(hasKeyboardFocus()) {
+ size_t px = font.textWidth(_visibletext.substr(0, pos - offsetpos));
+ p.drawLine(px + BORDER - 1 - 4 + 3, 6,
+ px + BORDER - 1 - 4 + 3, height() - 7);
+ }
+}
+
+#ifdef TEST_LINEEDIT
+//Additional dependency files
+//deps:
+//Required cflags (autoconf vars may be used)
+//cflags:
+//Required link options (autoconf vars may be used)
+//libs:
+#include "test.h"
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+
+TEST_END;
+
+#endif/*TEST_LINEEDIT*/
diff --git a/plugingui/lineedit.h b/plugingui/lineedit.h
new file mode 100644
index 0000000..f85e9bd
--- /dev/null
+++ b/plugingui/lineedit.h
@@ -0,0 +1,86 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * lineedit.h
+ *
+ * Sun Oct 9 13:01:52 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_LINEEDIT_H__
+#define __DRUMGIZMO_LINEEDIT_H__
+
+
+#include <string>
+
+#include "widget.h"
+#include "font.h"
+#include "painter.h"
+
+namespace GUI {
+
+class LineEdit : public Widget {
+public:
+ LineEdit(Widget *parent);
+
+ bool isFocusable() { return true; }
+
+ std::string text();
+ void setText(std::string text);
+
+ void setReadOnly(bool readonly);
+ bool readOnly();
+
+ void registerEnterPressedHandler(void (*handler)(void *), void *ptr);
+
+ //protected:
+ virtual void keyEvent(KeyEvent *e);
+ virtual void repaintEvent(RepaintEvent *e);
+ virtual void buttonEvent(ButtonEvent *e);
+
+protected:
+ virtual void textChanged() {}
+
+private:
+ Painter::Box box;
+
+ Font font;
+
+ std::string _text;
+ size_t pos;
+ std::string _visibletext;
+ size_t offsetpos;
+
+ enum state_t {
+ NOOP = 0,
+ WALK_LEFT = 1,
+ WALK_RIGHT = 2
+ };
+ state_t walkstate;
+
+ bool readonly;
+
+ void (*handler)(void *);
+ void *ptr;
+};
+
+};
+
+#endif/*__DRUMGIZMO_LINEEDIT_H__*/
diff --git a/plugingui/listbox.cc b/plugingui/listbox.cc
new file mode 100644
index 0000000..ed873b2
--- /dev/null
+++ b/plugingui/listbox.cc
@@ -0,0 +1,123 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * listbox.cc
+ *
+ * Mon Feb 25 21:21:41 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "listbox.h"
+
+#include "painter.h"
+#include "font.h"
+
+#include <stdio.h>
+
+GUI::ListBox::ListBox(GUI::Widget *parent)
+ : GUI::Widget(parent)
+{
+ box.topLeft = new Image(":widget_tl.png");
+ box.top = new Image(":widget_t.png");
+ box.topRight = new Image(":widget_tr.png");
+ box.left = new Image(":widget_l.png");
+ box.right = new Image(":widget_r.png");
+ box.bottomLeft = new Image(":widget_bl.png");
+ box.bottom = new Image(":widget_b.png");
+ box.bottomRight = new Image(":widget_br.png");
+ box.center = new Image(":widget_c.png");
+
+ basic = new GUI::ListBoxBasic(this);
+ basic->move(box.left->width(), box.top->height());
+}
+
+GUI::ListBox::~ListBox()
+{
+}
+
+void GUI::ListBox::addItem(std::string name, std::string value)
+{
+ basic->addItem(name, value);
+}
+
+void GUI::ListBox::addItems(std::vector<ListBoxBasic::Item> &items)
+{
+ basic->addItems(items);
+}
+
+void GUI::ListBox::clear()
+{
+ basic->clear();
+}
+
+bool GUI::ListBox::selectItem(int index)
+{
+ return basic->selectItem(index);
+}
+
+std::string GUI::ListBox::selectedName()
+{
+ return basic->selectedName();
+}
+
+std::string GUI::ListBox::selectedValue()
+{
+ return basic->selectedValue();
+}
+
+void GUI::ListBox::clearSelectedValue()
+{
+ basic->clearSelectedValue();
+}
+
+void GUI::ListBox::registerClickHandler(void (*handler)(void *), void *ptr)
+{
+ basic->registerClickHandler(handler, ptr);
+}
+
+void GUI::ListBox::registerSelectHandler(void (*handler)(void *), void *ptr)
+{
+ basic->registerSelectHandler(handler, ptr);
+}
+
+void GUI::ListBox::registerValueChangeHandler(void (*handler)(void *),
+ void *ptr)
+{
+ basic->registerValueChangeHandler(handler, ptr);
+}
+
+void GUI::ListBox::repaintEvent(GUI::RepaintEvent *e)
+{
+ GUI::Painter p(this);
+
+ p.clear();
+
+ int w = width();
+ int h = height();
+ if(w == 0 || h == 0) return;
+ p.drawBox(0, 0, &box, w, h);
+}
+
+void GUI::ListBox::resize(int width, int height)
+{
+ GUI::Widget::resize(width, height);
+ basic->resize(width - (box.left->width() + box.right->width()),
+ height - (box.top->height() + box.bottom->height()));
+}
diff --git a/plugingui/listbox.h b/plugingui/listbox.h
new file mode 100644
index 0000000..c8677e7
--- /dev/null
+++ b/plugingui/listbox.h
@@ -0,0 +1,68 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * listbox.h
+ *
+ * Mon Feb 25 21:21:40 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_LISTBOX_H__
+#define __DRUMGIZMO_LISTBOX_H__
+
+#include <string.h>
+#include <vector>
+
+#include "widget.h"
+#include "painter.h"
+#include "listboxbasic.h"
+
+namespace GUI {
+
+class ListBox : public Widget {
+public:
+ ListBox(Widget *parent);
+ ~ListBox();
+
+ void addItem(std::string name, std::string value);
+ void addItems(std::vector<ListBoxBasic::Item> &items);
+
+ void clear();
+ bool selectItem(int index);
+ std::string selectedName();
+ std::string selectedValue();
+ void clearSelectedValue();
+
+ void registerSelectHandler(void (*handler)(void *), void *ptr);
+ void registerClickHandler(void (*handler)(void *), void *ptr);
+ void registerValueChangeHandler(void (*handler)(void *), void *ptr);
+
+ virtual void repaintEvent(GUI::RepaintEvent *e);
+ virtual void resize(int w, int h);
+
+private:
+ ListBoxBasic *basic;
+
+ Painter::Box box;
+};
+
+};
+
+#endif/*__DRUMGIZMO_LISTBOX_H__*/
diff --git a/plugingui/listboxbasic.cc b/plugingui/listboxbasic.cc
new file mode 100644
index 0000000..df7877d
--- /dev/null
+++ b/plugingui/listboxbasic.cc
@@ -0,0 +1,334 @@
+
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * listboxbasic.cc
+ *
+ * Thu Apr 4 20:28:10 CEST 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "listboxbasic.h"
+
+#include "painter.h"
+#include "font.h"
+
+#include <stdio.h>
+#include <hugin.hpp>
+
+void scrolled(void *ptr)
+{
+ GUI::ListBoxBasic *l = (GUI::ListBoxBasic *)ptr;
+ l->repaintEvent(NULL);
+}
+
+GUI::ListBoxBasic::ListBoxBasic(GUI::Widget *parent)
+ : GUI::Widget(parent), scroll(this), bg_img(":widget_c.png")
+{
+ scroll.move(0,0);
+ scroll.resize(18, 100);
+
+ scroll.registerValueChangeHandler(scrolled, this);
+
+ padding = 4;
+ btn_size = 18;
+
+ selected = -1;
+ marked = -1;
+
+ clk_handler = NULL;
+ clk_ptr = NULL;
+
+ sel_handler = NULL;
+ sel_ptr = NULL;
+
+ valch_handler = NULL;
+ valch_ptr = NULL;
+}
+
+GUI::ListBoxBasic::~ListBoxBasic()
+{
+}
+
+void GUI::ListBoxBasic::setSelection(int index)
+{
+ selected = index;
+ if(valch_handler) valch_handler(valch_ptr);
+}
+
+void GUI::ListBoxBasic::addItem(std::string name, std::string value)
+{
+ std::vector<GUI::ListBoxBasic::Item> items;
+ GUI::ListBoxBasic::Item item;
+ item.name = name;
+ item.value = value;
+ items.push_back(item);
+ addItems(items);
+}
+
+void GUI::ListBoxBasic::addItems(std::vector<GUI::ListBoxBasic::Item> &is)
+{
+ // DEBUG(list, "addItems %lu\n", is.size());
+ std::vector<GUI::ListBoxBasic::Item>::iterator i = is.begin();
+ while(i != is.end()) {
+ items.push_back(*i);
+ i++;
+ }
+
+/*
+ // sort
+ for(int x = 0; x < (int)items.size(); x++) {
+ for(int y = 0; y < (int)items.size(); y++) {
+ if(items[x].name < items[y].name) {
+ if(x == selected) setSelection(y);
+ else if(selected == y) setSelection(x);
+
+ GUI::ListBoxBasic::Item tmp = items[x];
+ items[x] = items[y];
+ items[y] = tmp;
+ }
+ }
+ }
+*/
+
+ if(selected == -1) setSelection((int)items.size() - 1);
+ setSelection(0);
+
+ int numitems = height() / (font.textHeight() + padding);
+ scroll.setRange(numitems);
+ scroll.setMaximum(items.size());
+}
+
+void GUI::ListBoxBasic::clear()
+{
+ items.clear();
+ setSelection(-1);
+ scroll.setValue(0);
+ repaintEvent(NULL);
+}
+
+bool GUI::ListBoxBasic::selectItem(int index)
+{
+ if(index < 0 || index > (int)items.size() - 1) return false;
+ setSelection(index);
+ repaintEvent(NULL);
+ return true;
+}
+
+std::string GUI::ListBoxBasic::selectedName()
+{
+ if(selected < 0 || selected > (int)items.size() - 1) return "";
+ return items[selected].name;
+}
+
+std::string GUI::ListBoxBasic::selectedValue()
+{
+ if(selected < 0 || selected > (int)items.size() - 1) return "";
+ return items[selected].value;
+}
+
+void GUI::ListBoxBasic::clearSelectedValue()
+{
+ setSelection(-1);
+}
+
+void GUI::ListBoxBasic::registerClickHandler(void (*handler)(void *), void *ptr)
+{
+ this->clk_handler = handler;
+ this->clk_ptr = ptr;
+}
+
+void GUI::ListBoxBasic::registerSelectHandler(void (*handler)(void *), void *ptr)
+{
+ this->sel_handler = handler;
+ this->sel_ptr = ptr;
+}
+
+void GUI::ListBoxBasic::registerValueChangeHandler(void (*handler)(void *),
+ void *ptr)
+{
+ this->valch_handler = handler;
+ this->valch_ptr = ptr;
+}
+
+void GUI::ListBoxBasic::repaintEvent(GUI::RepaintEvent *e)
+{
+ DEBUG(list, "repaint\n");
+ GUI::Painter p(this);
+
+ p.clear();
+
+ int w = width();
+ int h = height();
+ if(w == 0 || h == 0) return;
+
+ p.drawImageStretched(0, 0, &bg_img, w, h);
+
+ p.setColour(GUI::Colour(183.0/255.0, 219.0/255.0 , 255.0/255.0, 1));
+
+ int yoffset = padding / 2;
+ int skip = scroll.value();
+ int numitems = height() / (font.textHeight() + padding) + 1;
+ for(int idx = skip; idx < (int)items.size() && idx < skip + numitems; idx++) {
+ GUI::ListBoxBasic::Item *i = &items[idx];
+ if(idx == selected) {
+ p.setColour(GUI::Colour(183.0/255.0, 219.0/255.0 , 255.0/255.0, 0.5));
+ p.drawFilledRectangle(0,
+ yoffset - (padding / 2),
+ width() - 1,
+ yoffset + (font.textHeight() + 1));
+ }
+
+ if(idx == marked) {
+ p.drawRectangle(0,
+ yoffset - (padding / 2),
+ width() - 1,
+ yoffset + (font.textHeight() + 1));
+ }
+
+ p.setColour(GUI::Colour(183.0/255.0, 219.0/255.0 , 255.0/255.0, 1));
+
+ p.drawText(2, yoffset + font.textHeight(), font, i->name);
+ yoffset += font.textHeight() + padding;
+ }
+}
+
+void GUI::ListBoxBasic::scrollEvent(ScrollEvent *e)
+{
+ scroll.scrollEvent(e);
+}
+
+void GUI::ListBoxBasic::keyEvent(GUI::KeyEvent *e)
+{
+ if(e->direction != -1) return;
+
+ switch(e->keycode) {
+ case GUI::KeyEvent::KEY_UP:
+ {
+ marked--;
+ if(marked < 0) marked = 0;
+
+ if(marked < scroll.value()) {
+ scroll.setValue(marked);
+ }
+ }
+ break;
+ case GUI::KeyEvent::KEY_DOWN:
+ {
+ // Number of items that can be displayed at a time.
+ int numitems = height() / (font.textHeight() + padding);
+
+ marked++;
+ if(marked > ((int)items.size() - 1)) marked = (int)items.size() - 1;
+
+ if(marked > (scroll.value() + numitems - 1)) {
+ scroll.setValue(marked - numitems + 1);
+ }
+ }
+ break;
+ case GUI::KeyEvent::KEY_HOME:
+ marked = 0;
+ if(marked < scroll.value()) {
+ scroll.setValue(marked);
+ }
+ break;
+ case GUI::KeyEvent::KEY_END:
+ {
+ // Number of items that can be displayed at a time.
+ int numitems = height() / (font.textHeight() + padding);
+
+ marked = (int)items.size() - 1;
+ if(marked > (scroll.value() + numitems - 1)) {
+ scroll.setValue(marked - numitems + 1);
+ }
+ }
+ break;
+ case GUI::KeyEvent::KEY_CHARACTER:
+ if(e->text == " ") {
+ setSelection(marked);
+ // if(sel_handler) sel_handler(sel_ptr);
+ }
+ break;
+ case GUI::KeyEvent::KEY_ENTER:
+ setSelection(marked);
+ if(sel_handler) sel_handler(sel_ptr);
+ break;
+ default:
+ break;
+ }
+
+ repaintEvent(NULL);
+}
+
+void GUI::ListBoxBasic::buttonEvent(ButtonEvent *e)
+{
+ if(e->x > ((int)width() - btn_size) && e->y < ((int)width() - 1)) {
+ if(e->y > 0 && e->y < btn_size) {
+ if(e->direction == -1) return;
+ scroll.setValue(scroll.value() - 1);
+ return;
+ }
+
+ if(e->y > ((int)height() - btn_size) && e->y < ((int)height() - 1)) {
+ if(e->direction == -1) return;
+ scroll.setValue(scroll.value() + 1);
+ return;
+ }
+ }
+
+ if(e->direction == -1) {
+ int skip = scroll.value();
+ size_t yoffset = padding / 2;
+ for(int idx = skip; idx < (int)items.size(); idx++) {
+ yoffset += font.textHeight() + padding;
+ if(e->y < (int)yoffset - (padding / 2)) {
+ setSelection(idx);
+ marked = selected;
+ if(clk_handler) clk_handler(clk_ptr);
+ break;
+ }
+ }
+
+ repaintEvent(NULL);
+ }
+
+ if(e->direction != -1) {
+ int skip = scroll.value();
+ size_t yoffset = padding / 2;
+ for(int idx = skip; idx < (int)items.size(); idx++) {
+ yoffset += font.textHeight() + padding;
+ if(e->y < (int)yoffset - (padding / 2)) {
+ marked = idx;
+ break;
+ }
+ }
+
+ repaintEvent(NULL);
+ }
+
+ if(e->doubleclick && sel_handler) sel_handler(sel_ptr);
+}
+
+void GUI::ListBoxBasic::resize(int w, int h)
+{
+ GUI::Widget::resize(w,h);
+ scroll.move(w - scroll.width(), 0);
+ scroll.resize(scroll.width(), h);
+}
diff --git a/plugingui/listboxbasic.h b/plugingui/listboxbasic.h
new file mode 100644
index 0000000..deb4a67
--- /dev/null
+++ b/plugingui/listboxbasic.h
@@ -0,0 +1,101 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * listboxbasic.h
+ *
+ * Thu Apr 4 20:28:10 CEST 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_LISTBOXBASIC_H__
+#define __DRUMGIZMO_LISTBOXBASIC_H__
+
+#include <string.h>
+#include <vector>
+
+#include "widget.h"
+#include "font.h"
+#include "painter.h"
+
+#include "scrollbar.h"
+
+namespace GUI {
+
+class ListBoxBasic : public Widget {
+public:
+ class Item {
+ public:
+ std::string name;
+ std::string value;
+ };
+
+ ListBoxBasic(Widget *parent);
+ ~ListBoxBasic();
+
+ bool isFocusable() { return true; }
+
+ void addItem(std::string name, std::string value);
+ void addItems(std::vector<Item> &items);
+
+ void clear();
+ bool selectItem(int index);
+ std::string selectedName();
+ std::string selectedValue();
+
+ void clearSelectedValue();
+
+ void registerSelectHandler(void (*handler)(void *), void *ptr);
+ void registerClickHandler(void (*handler)(void *), void *ptr);
+ void registerValueChangeHandler(void (*handler)(void *), void *ptr);
+
+ virtual void repaintEvent(RepaintEvent *e);
+ virtual void buttonEvent(ButtonEvent *e);
+ virtual void scrollEvent(ScrollEvent *e);
+ virtual void keyEvent(KeyEvent *e);
+ virtual void resize(int w, int h);
+
+private:
+ ScrollBar scroll;
+
+ Image bg_img;
+
+ void setSelection(int index);
+
+ std::vector<Item> items;
+
+ int selected;
+ int marked;
+ GUI::Font font;
+ int padding;
+ int btn_size;
+
+ void (*sel_handler)(void *);
+ void *sel_ptr;
+
+ void (*clk_handler)(void *);
+ void *clk_ptr;
+
+ void (*valch_handler)(void *);
+ void *valch_ptr;
+};
+
+};
+
+#endif/*__DRUMGIZMO_LISTBOXBASIC_H__*/
diff --git a/plugingui/listboxthin.cc b/plugingui/listboxthin.cc
new file mode 100644
index 0000000..3f0fbc6
--- /dev/null
+++ b/plugingui/listboxthin.cc
@@ -0,0 +1,118 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * listboxthin.cc
+ *
+ * Sun Apr 7 19:39:36 CEST 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "listboxthin.h"
+
+#include "painter.h"
+#include "font.h"
+
+#include <stdio.h>
+
+GUI::ListBoxThin::ListBoxThin(GUI::Widget *parent)
+ : GUI::Widget(parent)
+{
+ box.topLeft = new Image(":thinlistbox_tl.png");
+ box.top = new Image(":thinlistbox_t.png");
+ box.topRight = new Image(":thinlistbox_tr.png");
+ box.left = new Image(":thinlistbox_l.png");
+ box.right = new Image(":thinlistbox_r.png");
+ box.bottomLeft = new Image(":thinlistbox_bl.png");
+ box.bottom = new Image(":thinlistbox_b.png");
+ box.bottomRight = new Image(":thinlistbox_br.png");
+ box.center = new Image(":thinlistbox_c.png");
+
+ basic = new GUI::ListBoxBasic(this);
+ basic->move(box.left->width(), box.top->height());
+}
+
+GUI::ListBoxThin::~ListBoxThin()
+{
+}
+
+void GUI::ListBoxThin::addItem(std::string name, std::string value)
+{
+ basic->addItem(name, value);
+}
+
+void GUI::ListBoxThin::addItems(std::vector<ListBoxBasic::Item> &items)
+{
+ basic->addItems(items);
+}
+
+void GUI::ListBoxThin::clear()
+{
+ basic->clear();
+}
+
+bool GUI::ListBoxThin::selectItem(int index)
+{
+ return basic->selectItem(index);
+}
+
+std::string GUI::ListBoxThin::selectedName()
+{
+ return basic->selectedName();
+}
+
+std::string GUI::ListBoxThin::selectedValue()
+{
+ return basic->selectedValue();
+}
+
+void GUI::ListBoxThin::registerClickHandler(void (*handler)(void *), void *ptr)
+{
+ basic->registerClickHandler(handler, ptr);
+}
+
+void GUI::ListBoxThin::registerSelectHandler(void (*handler)(void *), void *ptr)
+{
+ basic->registerSelectHandler(handler, ptr);
+}
+
+void GUI::ListBoxThin::registerValueChangeHandler(void (*handler)(void *),
+ void *ptr)
+{
+ basic->registerValueChangeHandler(handler, ptr);
+}
+
+void GUI::ListBoxThin::repaintEvent(GUI::RepaintEvent *e)
+{
+ GUI::Painter p(this);
+
+ p.clear();
+
+ int w = width();
+ int h = height();
+ if(w == 0 || h == 0) return;
+ p.drawBox(0, 0, &box, w, h);
+}
+
+void GUI::ListBoxThin::resize(int width, int height)
+{
+ GUI::Widget::resize(width, height);
+ basic->resize(width - (box.left->width() + box.right->width()),
+ height - (box.top->height() + box.bottom->height()));
+}
diff --git a/plugingui/listboxthin.h b/plugingui/listboxthin.h
new file mode 100644
index 0000000..9c5363a
--- /dev/null
+++ b/plugingui/listboxthin.h
@@ -0,0 +1,67 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * listboxthin.h
+ *
+ * Sun Apr 7 19:39:35 CEST 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_LISTBOXTHIN_H__
+#define __DRUMGIZMO_LISTBOXTHIN_H__
+
+#include <string.h>
+#include <vector>
+
+#include "widget.h"
+#include "painter.h"
+#include "listboxbasic.h"
+
+namespace GUI {
+
+class ListBoxThin : public Widget {
+public:
+ ListBoxThin(Widget *parent);
+ ~ListBoxThin();
+
+ void addItem(std::string name, std::string value);
+ void addItems(std::vector<ListBoxBasic::Item> &items);
+
+ void clear();
+ bool selectItem(int index);
+ std::string selectedName();
+ std::string selectedValue();
+
+ void registerSelectHandler(void (*handler)(void *), void *ptr);
+ void registerClickHandler(void (*handler)(void *), void *ptr);
+ void registerValueChangeHandler(void (*handler)(void *), void *ptr);
+
+ virtual void repaintEvent(GUI::RepaintEvent *e);
+ virtual void resize(int w, int h);
+
+private:
+ ListBoxBasic *basic;
+
+ Painter::Box box;
+};
+
+};
+
+#endif/*__DRUMGIZMO_LISTBOXTHIN_H__*/
diff --git a/plugingui/lodepng/lodepng.cpp b/plugingui/lodepng/lodepng.cpp
new file mode 100644
index 0000000..e4f35d7
--- /dev/null
+++ b/plugingui/lodepng/lodepng.cpp
@@ -0,0 +1,6260 @@
+/*
+LodePNG version 20131222
+
+Copyright (c) 2005-2013 Lode Vandevenne
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+
+ 3. This notice may not be removed or altered from any source
+ distribution.
+*/
+
+/*
+The manual and changelog are in the header file "lodepng.h"
+Rename this file to lodepng.cpp to use it for C++, or to lodepng.c to use it for C.
+*/
+
+#include "lodepng.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifdef LODEPNG_COMPILE_CPP
+#include <fstream>
+#endif /*LODEPNG_COMPILE_CPP*/
+
+#define VERSION_STRING "20131222"
+
+/*
+This source file is built up in the following large parts. The code sections
+with the "LODEPNG_COMPILE_" #defines divide this up further in an intermixed way.
+-Tools for C and common code for PNG and Zlib
+-C Code for Zlib (huffman, deflate, ...)
+-C Code for PNG (file format chunks, adam7, PNG filters, color conversions, ...)
+-The C++ wrapper around all of the above
+*/
+
+/*The malloc, realloc and free functions defined here with "lodepng_" in front
+of the name, so that you can easily change them to others related to your
+platform if needed. Everything else in the code calls these. Pass
+-DLODEPNG_NO_COMPILE_ALLOCATORS to the compiler, or comment out
+#define LODEPNG_COMPILE_ALLOCATORS in the header, to disable the ones here and
+define them in your own project's source files without needing to change
+lodepng source code. Don't forget to remove "static" if you copypaste them
+from here.*/
+
+#ifdef LODEPNG_COMPILE_ALLOCATORS
+static void* lodepng_malloc(size_t size)
+{
+ return malloc(size);
+}
+
+static void* lodepng_realloc(void* ptr, size_t new_size)
+{
+ return realloc(ptr, new_size);
+}
+
+static void lodepng_free(void* ptr)
+{
+ free(ptr);
+}
+#else /*LODEPNG_COMPILE_ALLOCATORS*/
+void* lodepng_malloc(size_t size);
+void* lodepng_realloc(void* ptr, size_t new_size);
+void lodepng_free(void* ptr);
+#endif /*LODEPNG_COMPILE_ALLOCATORS*/
+
+/* ////////////////////////////////////////////////////////////////////////// */
+/* ////////////////////////////////////////////////////////////////////////// */
+/* // Tools for C, and common code for PNG and Zlib. // */
+/* ////////////////////////////////////////////////////////////////////////// */
+/* ////////////////////////////////////////////////////////////////////////// */
+
+/*
+Often in case of an error a value is assigned to a variable and then it breaks
+out of a loop (to go to the cleanup phase of a function). This macro does that.
+It makes the error handling code shorter and more readable.
+
+Example: if(!uivector_resizev(&frequencies_ll, 286, 0)) ERROR_BREAK(83);
+*/
+#define CERROR_BREAK(errorvar, code)\
+{\
+ errorvar = code;\
+ break;\
+}
+
+/*version of CERROR_BREAK that assumes the common case where the error variable is named "error"*/
+#define ERROR_BREAK(code) CERROR_BREAK(error, code)
+
+/*Set error var to the error code, and return it.*/
+#define CERROR_RETURN_ERROR(errorvar, code)\
+{\
+ errorvar = code;\
+ return code;\
+}
+
+/*Try the code, if it returns error, also return the error.*/
+#define CERROR_TRY_RETURN(call)\
+{\
+ unsigned error = call;\
+ if(error) return error;\
+}
+
+/*
+About uivector, ucvector and string:
+-All of them wrap dynamic arrays or text strings in a similar way.
+-LodePNG was originally written in C++. The vectors replace the std::vectors that were used in the C++ version.
+-The string tools are made to avoid problems with compilers that declare things like strncat as deprecated.
+-They're not used in the interface, only internally in this file as static functions.
+-As with many other structs in this file, the init and cleanup functions serve as ctor and dtor.
+*/
+
+#ifdef LODEPNG_COMPILE_ZLIB
+/*dynamic vector of unsigned ints*/
+typedef struct uivector
+{
+ unsigned* data;
+ size_t size; /*size in number of unsigned longs*/
+ size_t allocsize; /*allocated size in bytes*/
+} uivector;
+
+static void uivector_cleanup(void* p)
+{
+ ((uivector*)p)->size = ((uivector*)p)->allocsize = 0;
+ lodepng_free(((uivector*)p)->data);
+ ((uivector*)p)->data = NULL;
+}
+
+/*returns 1 if success, 0 if failure ==> nothing done*/
+static unsigned uivector_resize(uivector* p, size_t size)
+{
+ if(size * sizeof(unsigned) > p->allocsize)
+ {
+ size_t newsize = size * sizeof(unsigned) * 2;
+ void* data = lodepng_realloc(p->data, newsize);
+ if(data)
+ {
+ p->allocsize = newsize;
+ p->data = (unsigned*)data;
+ p->size = size;
+ }
+ else return 0;
+ }
+ else p->size = size;
+ return 1;
+}
+
+/*resize and give all new elements the value*/
+static unsigned uivector_resizev(uivector* p, size_t size, unsigned value)
+{
+ size_t oldsize = p->size, i;
+ if(!uivector_resize(p, size)) return 0;
+ for(i = oldsize; i < size; i++) p->data[i] = value;
+ return 1;
+}
+
+static void uivector_init(uivector* p)
+{
+ p->data = NULL;
+ p->size = p->allocsize = 0;
+}
+
+#ifdef LODEPNG_COMPILE_ENCODER
+/*returns 1 if success, 0 if failure ==> nothing done*/
+static unsigned uivector_push_back(uivector* p, unsigned c)
+{
+ if(!uivector_resize(p, p->size + 1)) return 0;
+ p->data[p->size - 1] = c;
+ return 1;
+}
+
+/*copy q to p, returns 1 if success, 0 if failure ==> nothing done*/
+static unsigned uivector_copy(uivector* p, const uivector* q)
+{
+ size_t i;
+ if(!uivector_resize(p, q->size)) return 0;
+ for(i = 0; i < q->size; i++) p->data[i] = q->data[i];
+ return 1;
+}
+#endif /*LODEPNG_COMPILE_ENCODER*/
+#endif /*LODEPNG_COMPILE_ZLIB*/
+
+/* /////////////////////////////////////////////////////////////////////////// */
+
+/*dynamic vector of unsigned chars*/
+typedef struct ucvector
+{
+ unsigned char* data;
+ size_t size; /*used size*/
+ size_t allocsize; /*allocated size*/
+} ucvector;
+
+/*returns 1 if success, 0 if failure ==> nothing done*/
+static unsigned ucvector_resize(ucvector* p, size_t size)
+{
+ if(size * sizeof(unsigned char) > p->allocsize)
+ {
+ size_t newsize = size * sizeof(unsigned char) * 2;
+ void* data = lodepng_realloc(p->data, newsize);
+ if(data)
+ {
+ p->allocsize = newsize;
+ p->data = (unsigned char*)data;
+ p->size = size;
+ }
+ else return 0; /*error: not enough memory*/
+ }
+ else p->size = size;
+ return 1;
+}
+
+#ifdef LODEPNG_COMPILE_PNG
+
+static void ucvector_cleanup(void* p)
+{
+ ((ucvector*)p)->size = ((ucvector*)p)->allocsize = 0;
+ lodepng_free(((ucvector*)p)->data);
+ ((ucvector*)p)->data = NULL;
+}
+
+static void ucvector_init(ucvector* p)
+{
+ p->data = NULL;
+ p->size = p->allocsize = 0;
+}
+
+#ifdef LODEPNG_COMPILE_DECODER
+/*resize and give all new elements the value*/
+static unsigned ucvector_resizev(ucvector* p, size_t size, unsigned char value)
+{
+ size_t oldsize = p->size, i;
+ if(!ucvector_resize(p, size)) return 0;
+ for(i = oldsize; i < size; i++) p->data[i] = value;
+ return 1;
+}
+#endif /*LODEPNG_COMPILE_DECODER*/
+#endif /*LODEPNG_COMPILE_PNG*/
+
+#ifdef LODEPNG_COMPILE_ZLIB
+/*you can both convert from vector to buffer&size and vica versa. If you use
+init_buffer to take over a buffer and size, it is not needed to use cleanup*/
+static void ucvector_init_buffer(ucvector* p, unsigned char* buffer, size_t size)
+{
+ p->data = buffer;
+ p->allocsize = p->size = size;
+}
+#endif /*LODEPNG_COMPILE_ZLIB*/
+
+#if (defined(LODEPNG_COMPILE_PNG) && defined(LODEPNG_COMPILE_ANCILLARY_CHUNKS)) || defined(LODEPNG_COMPILE_ENCODER)
+/*returns 1 if success, 0 if failure ==> nothing done*/
+static unsigned ucvector_push_back(ucvector* p, unsigned char c)
+{
+ if(!ucvector_resize(p, p->size + 1)) return 0;
+ p->data[p->size - 1] = c;
+ return 1;
+}
+#endif /*defined(LODEPNG_COMPILE_PNG) || defined(LODEPNG_COMPILE_ENCODER)*/
+
+
+/* ////////////////////////////////////////////////////////////////////////// */
+
+#ifdef LODEPNG_COMPILE_PNG
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+/*returns 1 if success, 0 if failure ==> nothing done*/
+static unsigned string_resize(char** out, size_t size)
+{
+ char* data = (char*)lodepng_realloc(*out, size + 1);
+ if(data)
+ {
+ data[size] = 0; /*null termination char*/
+ *out = data;
+ }
+ return data != 0;
+}
+
+/*init a {char*, size_t} pair for use as string*/
+static void string_init(char** out)
+{
+ *out = NULL;
+ string_resize(out, 0);
+}
+
+/*free the above pair again*/
+static void string_cleanup(char** out)
+{
+ lodepng_free(*out);
+ *out = NULL;
+}
+
+static void string_set(char** out, const char* in)
+{
+ size_t insize = strlen(in), i = 0;
+ if(string_resize(out, insize))
+ {
+ for(i = 0; i < insize; i++)
+ {
+ (*out)[i] = in[i];
+ }
+ }
+}
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+#endif /*LODEPNG_COMPILE_PNG*/
+
+/* ////////////////////////////////////////////////////////////////////////// */
+
+unsigned lodepng_read32bitInt(const unsigned char* buffer)
+{
+ return (buffer[0] << 24) | (buffer[1] << 16) | (buffer[2] << 8) | buffer[3];
+}
+
+#if defined(LODEPNG_COMPILE_PNG) || defined(LODEPNG_COMPILE_ENCODER)
+/*buffer must have at least 4 allocated bytes available*/
+static void lodepng_set32bitInt(unsigned char* buffer, unsigned value)
+{
+ buffer[0] = (unsigned char)((value >> 24) & 0xff);
+ buffer[1] = (unsigned char)((value >> 16) & 0xff);
+ buffer[2] = (unsigned char)((value >> 8) & 0xff);
+ buffer[3] = (unsigned char)((value ) & 0xff);
+}
+#endif /*defined(LODEPNG_COMPILE_PNG) || defined(LODEPNG_COMPILE_ENCODER)*/
+
+#ifdef LODEPNG_COMPILE_ENCODER
+static void lodepng_add32bitInt(ucvector* buffer, unsigned value)
+{
+ ucvector_resize(buffer, buffer->size + 4); /*todo: give error if resize failed*/
+ lodepng_set32bitInt(&buffer->data[buffer->size - 4], value);
+}
+#endif /*LODEPNG_COMPILE_ENCODER*/
+
+/* ////////////////////////////////////////////////////////////////////////// */
+/* / File IO / */
+/* ////////////////////////////////////////////////////////////////////////// */
+
+#ifdef LODEPNG_COMPILE_DISK
+
+unsigned lodepng_load_file(unsigned char** out, size_t* outsize, const char* filename)
+{
+ FILE* file;
+ long size;
+
+ /*provide some proper output values if error will happen*/
+ *out = 0;
+ *outsize = 0;
+
+ file = fopen(filename, "rb");
+ if(!file) return 78;
+
+ /*get filesize:*/
+ fseek(file , 0 , SEEK_END);
+ size = ftell(file);
+ rewind(file);
+
+ /*read contents of the file into the vector*/
+ *outsize = 0;
+ *out = (unsigned char*)lodepng_malloc((size_t)size);
+ if(size && (*out)) (*outsize) = fread(*out, 1, (size_t)size, file);
+
+ fclose(file);
+ if(!(*out) && size) return 83; /*the above malloc failed*/
+ return 0;
+}
+
+/*write given buffer to the file, overwriting the file, it doesn't append to it.*/
+unsigned lodepng_save_file(const unsigned char* buffer, size_t buffersize, const char* filename)
+{
+ FILE* file;
+ file = fopen(filename, "wb" );
+ if(!file) return 79;
+ fwrite((char*)buffer , 1 , buffersize, file);
+ fclose(file);
+ return 0;
+}
+
+#endif /*LODEPNG_COMPILE_DISK*/
+
+/* ////////////////////////////////////////////////////////////////////////// */
+/* ////////////////////////////////////////////////////////////////////////// */
+/* // End of common code and tools. Begin of Zlib related code. // */
+/* ////////////////////////////////////////////////////////////////////////// */
+/* ////////////////////////////////////////////////////////////////////////// */
+
+#ifdef LODEPNG_COMPILE_ZLIB
+#ifdef LODEPNG_COMPILE_ENCODER
+/*TODO: this ignores potential out of memory errors*/
+#define addBitToStream(/*size_t**/ bitpointer, /*ucvector**/ bitstream, /*unsigned char*/ bit)\
+{\
+ /*add a new byte at the end*/\
+ if(((*bitpointer) & 7) == 0) ucvector_push_back(bitstream, (unsigned char)0);\
+ /*earlier bit of huffman code is in a lesser significant bit of an earlier byte*/\
+ (bitstream->data[bitstream->size - 1]) |= (bit << ((*bitpointer) & 0x7));\
+ (*bitpointer)++;\
+}
+
+static void addBitsToStream(size_t* bitpointer, ucvector* bitstream, unsigned value, size_t nbits)
+{
+ size_t i;
+ for(i = 0; i < nbits; i++) addBitToStream(bitpointer, bitstream, (unsigned char)((value >> i) & 1));
+}
+
+static void addBitsToStreamReversed(size_t* bitpointer, ucvector* bitstream, unsigned value, size_t nbits)
+{
+ size_t i;
+ for(i = 0; i < nbits; i++) addBitToStream(bitpointer, bitstream, (unsigned char)((value >> (nbits - 1 - i)) & 1));
+}
+#endif /*LODEPNG_COMPILE_ENCODER*/
+
+#ifdef LODEPNG_COMPILE_DECODER
+
+#define READBIT(bitpointer, bitstream) ((bitstream[bitpointer >> 3] >> (bitpointer & 0x7)) & (unsigned char)1)
+
+static unsigned char readBitFromStream(size_t* bitpointer, const unsigned char* bitstream)
+{
+ unsigned char result = (unsigned char)(READBIT(*bitpointer, bitstream));
+ (*bitpointer)++;
+ return result;
+}
+
+static unsigned readBitsFromStream(size_t* bitpointer, const unsigned char* bitstream, size_t nbits)
+{
+ unsigned result = 0, i;
+ for(i = 0; i < nbits; i++)
+ {
+ result += ((unsigned)READBIT(*bitpointer, bitstream)) << i;
+ (*bitpointer)++;
+ }
+ return result;
+}
+#endif /*LODEPNG_COMPILE_DECODER*/
+
+/* ////////////////////////////////////////////////////////////////////////// */
+/* / Deflate - Huffman / */
+/* ////////////////////////////////////////////////////////////////////////// */
+
+#define FIRST_LENGTH_CODE_INDEX 257
+#define LAST_LENGTH_CODE_INDEX 285
+/*256 literals, the end code, some length codes, and 2 unused codes*/
+#define NUM_DEFLATE_CODE_SYMBOLS 288
+/*the distance codes have their own symbols, 30 used, 2 unused*/
+#define NUM_DISTANCE_SYMBOLS 32
+/*the code length codes. 0-15: code lengths, 16: copy previous 3-6 times, 17: 3-10 zeros, 18: 11-138 zeros*/
+#define NUM_CODE_LENGTH_CODES 19
+
+/*the base lengths represented by codes 257-285*/
+static const unsigned LENGTHBASE[29]
+ = {3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59,
+ 67, 83, 99, 115, 131, 163, 195, 227, 258};
+
+/*the extra bits used by codes 257-285 (added to base length)*/
+static const unsigned LENGTHEXTRA[29]
+ = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3,
+ 4, 4, 4, 4, 5, 5, 5, 5, 0};
+
+/*the base backwards distances (the bits of distance codes appear after length codes and use their own huffman tree)*/
+static const unsigned DISTANCEBASE[30]
+ = {1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513,
+ 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577};
+
+/*the extra bits of backwards distances (added to base)*/
+static const unsigned DISTANCEEXTRA[30]
+ = {0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8,
+ 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13};
+
+/*the order in which "code length alphabet code lengths" are stored, out of this
+the huffman tree of the dynamic huffman tree lengths is generated*/
+static const unsigned CLCL_ORDER[NUM_CODE_LENGTH_CODES]
+ = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
+
+/* ////////////////////////////////////////////////////////////////////////// */
+
+/*
+Huffman tree struct, containing multiple representations of the tree
+*/
+typedef struct HuffmanTree
+{
+ unsigned* tree2d;
+ unsigned* tree1d;
+ unsigned* lengths; /*the lengths of the codes of the 1d-tree*/
+ unsigned maxbitlen; /*maximum number of bits a single code can get*/
+ unsigned numcodes; /*number of symbols in the alphabet = number of codes*/
+} HuffmanTree;
+
+/*function used for debug purposes to draw the tree in ascii art with C++*/
+/*
+static void HuffmanTree_draw(HuffmanTree* tree)
+{
+ std::cout << "tree. length: " << tree->numcodes << " maxbitlen: " << tree->maxbitlen << std::endl;
+ for(size_t i = 0; i < tree->tree1d.size; i++)
+ {
+ if(tree->lengths.data[i])
+ std::cout << i << " " << tree->tree1d.data[i] << " " << tree->lengths.data[i] << std::endl;
+ }
+ std::cout << std::endl;
+}*/
+
+static void HuffmanTree_init(HuffmanTree* tree)
+{
+ tree->tree2d = 0;
+ tree->tree1d = 0;
+ tree->lengths = 0;
+}
+
+static void HuffmanTree_cleanup(HuffmanTree* tree)
+{
+ lodepng_free(tree->tree2d);
+ lodepng_free(tree->tree1d);
+ lodepng_free(tree->lengths);
+}
+
+/*the tree representation used by the decoder. return value is error*/
+static unsigned HuffmanTree_make2DTree(HuffmanTree* tree)
+{
+ unsigned nodefilled = 0; /*up to which node it is filled*/
+ unsigned treepos = 0; /*position in the tree (1 of the numcodes columns)*/
+ unsigned n, i;
+
+ tree->tree2d = (unsigned*)lodepng_malloc(tree->numcodes * 2 * sizeof(unsigned));
+ if(!tree->tree2d) return 83; /*alloc fail*/
+
+ /*
+ convert tree1d[] to tree2d[][]. In the 2D array, a value of 32767 means
+ uninited, a value >= numcodes is an address to another bit, a value < numcodes
+ is a code. The 2 rows are the 2 possible bit values (0 or 1), there are as
+ many columns as codes - 1.
+ A good huffmann tree has N * 2 - 1 nodes, of which N - 1 are internal nodes.
+ Here, the internal nodes are stored (what their 0 and 1 option point to).
+ There is only memory for such good tree currently, if there are more nodes
+ (due to too long length codes), error 55 will happen
+ */
+ for(n = 0; n < tree->numcodes * 2; n++)
+ {
+ tree->tree2d[n] = 32767; /*32767 here means the tree2d isn't filled there yet*/
+ }
+
+ for(n = 0; n < tree->numcodes; n++) /*the codes*/
+ {
+ for(i = 0; i < tree->lengths[n]; i++) /*the bits for this code*/
+ {
+ unsigned char bit = (unsigned char)((tree->tree1d[n] >> (tree->lengths[n] - i - 1)) & 1);
+ if(treepos > tree->numcodes - 2) return 55; /*oversubscribed, see comment in lodepng_error_text*/
+ if(tree->tree2d[2 * treepos + bit] == 32767) /*not yet filled in*/
+ {
+ if(i + 1 == tree->lengths[n]) /*last bit*/
+ {
+ tree->tree2d[2 * treepos + bit] = n; /*put the current code in it*/
+ treepos = 0;
+ }
+ else
+ {
+ /*put address of the next step in here, first that address has to be found of course
+ (it's just nodefilled + 1)...*/
+ nodefilled++;
+ /*addresses encoded with numcodes added to it*/
+ tree->tree2d[2 * treepos + bit] = nodefilled + tree->numcodes;
+ treepos = nodefilled;
+ }
+ }
+ else treepos = tree->tree2d[2 * treepos + bit] - tree->numcodes;
+ }
+ }
+
+ for(n = 0; n < tree->numcodes * 2; n++)
+ {
+ if(tree->tree2d[n] == 32767) tree->tree2d[n] = 0; /*remove possible remaining 32767's*/
+ }
+
+ return 0;
+}
+
+/*
+Second step for the ...makeFromLengths and ...makeFromFrequencies functions.
+numcodes, lengths and maxbitlen must already be filled in correctly. return
+value is error.
+*/
+static unsigned HuffmanTree_makeFromLengths2(HuffmanTree* tree)
+{
+ uivector blcount;
+ uivector nextcode;
+ unsigned bits, n, error = 0;
+
+ uivector_init(&blcount);
+ uivector_init(&nextcode);
+
+ tree->tree1d = (unsigned*)lodepng_malloc(tree->numcodes * sizeof(unsigned));
+ if(!tree->tree1d) error = 83; /*alloc fail*/
+
+ if(!uivector_resizev(&blcount, tree->maxbitlen + 1, 0)
+ || !uivector_resizev(&nextcode, tree->maxbitlen + 1, 0))
+ error = 83; /*alloc fail*/
+
+ if(!error)
+ {
+ /*step 1: count number of instances of each code length*/
+ for(bits = 0; bits < tree->numcodes; bits++) blcount.data[tree->lengths[bits]]++;
+ /*step 2: generate the nextcode values*/
+ for(bits = 1; bits <= tree->maxbitlen; bits++)
+ {
+ nextcode.data[bits] = (nextcode.data[bits - 1] + blcount.data[bits - 1]) << 1;
+ }
+ /*step 3: generate all the codes*/
+ for(n = 0; n < tree->numcodes; n++)
+ {
+ if(tree->lengths[n] != 0) tree->tree1d[n] = nextcode.data[tree->lengths[n]]++;
+ }
+ }
+
+ uivector_cleanup(&blcount);
+ uivector_cleanup(&nextcode);
+
+ if(!error) return HuffmanTree_make2DTree(tree);
+ else return error;
+}
+
+/*
+given the code lengths (as stored in the PNG file), generate the tree as defined
+by Deflate. maxbitlen is the maximum bits that a code in the tree can have.
+return value is error.
+*/
+static unsigned HuffmanTree_makeFromLengths(HuffmanTree* tree, const unsigned* bitlen,
+ size_t numcodes, unsigned maxbitlen)
+{
+ unsigned i;
+ tree->lengths = (unsigned*)lodepng_malloc(numcodes * sizeof(unsigned));
+ if(!tree->lengths) return 83; /*alloc fail*/
+ for(i = 0; i < numcodes; i++) tree->lengths[i] = bitlen[i];
+ tree->numcodes = (unsigned)numcodes; /*number of symbols*/
+ tree->maxbitlen = maxbitlen;
+ return HuffmanTree_makeFromLengths2(tree);
+}
+
+#ifdef LODEPNG_COMPILE_ENCODER
+
+/*
+A coin, this is the terminology used for the package-merge algorithm and the
+coin collector's problem. This is used to generate the huffman tree.
+A coin can be multiple coins (when they're merged)
+*/
+typedef struct Coin
+{
+ uivector symbols;
+ float weight; /*the sum of all weights in this coin*/
+} Coin;
+
+static void coin_init(Coin* c)
+{
+ uivector_init(&c->symbols);
+}
+
+/*argument c is void* so that this dtor can be given as function pointer to the vector resize function*/
+static void coin_cleanup(void* c)
+{
+ uivector_cleanup(&((Coin*)c)->symbols);
+}
+
+static void coin_copy(Coin* c1, const Coin* c2)
+{
+ c1->weight = c2->weight;
+ uivector_copy(&c1->symbols, &c2->symbols);
+}
+
+static void add_coins(Coin* c1, const Coin* c2)
+{
+ size_t i;
+ for(i = 0; i < c2->symbols.size; i++) uivector_push_back(&c1->symbols, c2->symbols.data[i]);
+ c1->weight += c2->weight;
+}
+
+static void init_coins(Coin* coins, size_t num)
+{
+ size_t i;
+ for(i = 0; i < num; i++) coin_init(&coins[i]);
+}
+
+static void cleanup_coins(Coin* coins, size_t num)
+{
+ size_t i;
+ for(i = 0; i < num; i++) coin_cleanup(&coins[i]);
+}
+
+static int coin_compare(const void* a, const void* b) {
+ float wa = ((const Coin*)a)->weight;
+ float wb = ((const Coin*)b)->weight;
+ return wa > wb ? 1 : wa < wb ? -1 : 0;
+}
+
+static unsigned append_symbol_coins(Coin* coins, const unsigned* frequencies, unsigned numcodes, size_t sum)
+{
+ unsigned i;
+ unsigned j = 0; /*index of present symbols*/
+ for(i = 0; i < numcodes; i++)
+ {
+ if(frequencies[i] != 0) /*only include symbols that are present*/
+ {
+ coins[j].weight = frequencies[i] / (float)sum;
+ uivector_push_back(&coins[j].symbols, i);
+ j++;
+ }
+ }
+ return 0;
+}
+
+unsigned lodepng_huffman_code_lengths(unsigned* lengths, const unsigned* frequencies,
+ size_t numcodes, unsigned maxbitlen)
+{
+ unsigned i, j;
+ size_t sum = 0, numpresent = 0;
+ unsigned error = 0;
+ Coin* coins; /*the coins of the currently calculated row*/
+ Coin* prev_row; /*the previous row of coins*/
+ unsigned numcoins;
+ unsigned coinmem;
+
+ if(numcodes == 0) return 80; /*error: a tree of 0 symbols is not supposed to be made*/
+
+ for(i = 0; i < numcodes; i++)
+ {
+ if(frequencies[i] > 0)
+ {
+ numpresent++;
+ sum += frequencies[i];
+ }
+ }
+
+ for(i = 0; i < numcodes; i++) lengths[i] = 0;
+
+ /*ensure at least two present symbols. There should be at least one symbol
+ according to RFC 1951 section 3.2.7. To decoders incorrectly require two. To
+ make these work as well ensure there are at least two symbols. The
+ Package-Merge code below also doesn't work correctly if there's only one
+ symbol, it'd give it the theoritical 0 bits but in practice zlib wants 1 bit*/
+ if(numpresent == 0)
+ {
+ lengths[0] = lengths[1] = 1; /*note that for RFC 1951 section 3.2.7, only lengths[0] = 1 is needed*/
+ }
+ else if(numpresent == 1)
+ {
+ for(i = 0; i < numcodes; i++)
+ {
+ if(frequencies[i])
+ {
+ lengths[i] = 1;
+ lengths[i == 0 ? 1 : 0] = 1;
+ break;
+ }
+ }
+ }
+ else
+ {
+ /*Package-Merge algorithm represented by coin collector's problem
+ For every symbol, maxbitlen coins will be created*/
+
+ coinmem = numpresent * 2; /*max amount of coins needed with the current algo*/
+ coins = (Coin*)lodepng_malloc(sizeof(Coin) * coinmem);
+ prev_row = (Coin*)lodepng_malloc(sizeof(Coin) * coinmem);
+ if(!coins || !prev_row)
+ {
+ lodepng_free(coins);
+ lodepng_free(prev_row);
+ return 83; /*alloc fail*/
+ }
+ init_coins(coins, coinmem);
+ init_coins(prev_row, coinmem);
+
+ /*first row, lowest denominator*/
+ error = append_symbol_coins(coins, frequencies, numcodes, sum);
+ numcoins = numpresent;
+ qsort(coins, numcoins, sizeof(Coin), coin_compare);
+ if(!error)
+ {
+ unsigned numprev = 0;
+ for(j = 1; j <= maxbitlen && !error; j++) /*each of the remaining rows*/
+ {
+ unsigned tempnum;
+ Coin* tempcoins;
+ /*swap prev_row and coins, and their amounts*/
+ tempcoins = prev_row; prev_row = coins; coins = tempcoins;
+ tempnum = numprev; numprev = numcoins; numcoins = tempnum;
+
+ cleanup_coins(coins, numcoins);
+ init_coins(coins, numcoins);
+
+ numcoins = 0;
+
+ /*fill in the merged coins of the previous row*/
+ for(i = 0; i + 1 < numprev; i += 2)
+ {
+ /*merge prev_row[i] and prev_row[i + 1] into new coin*/
+ Coin* coin = &coins[numcoins++];
+ coin_copy(coin, &prev_row[i]);
+ add_coins(coin, &prev_row[i + 1]);
+ }
+ /*fill in all the original symbols again*/
+ if(j < maxbitlen)
+ {
+ error = append_symbol_coins(coins + numcoins, frequencies, numcodes, sum);
+ numcoins += numpresent;
+ }
+ qsort(coins, numcoins, sizeof(Coin), coin_compare);
+ }
+ }
+
+ if(!error)
+ {
+ /*calculate the lenghts of each symbol, as the amount of times a coin of each symbol is used*/
+ for(i = 0; i < numpresent - 1; i++)
+ {
+ Coin* coin = &coins[i];
+ for(j = 0; j < coin->symbols.size; j++) lengths[coin->symbols.data[j]]++;
+ }
+ }
+
+ cleanup_coins(coins, coinmem);
+ lodepng_free(coins);
+ cleanup_coins(prev_row, coinmem);
+ lodepng_free(prev_row);
+ }
+
+ return error;
+}
+
+/*Create the Huffman tree given the symbol frequencies*/
+static unsigned HuffmanTree_makeFromFrequencies(HuffmanTree* tree, const unsigned* frequencies,
+ size_t mincodes, size_t numcodes, unsigned maxbitlen)
+{
+ unsigned error = 0;
+ while(!frequencies[numcodes - 1] && numcodes > mincodes) numcodes--; /*trim zeroes*/
+ tree->maxbitlen = maxbitlen;
+ tree->numcodes = (unsigned)numcodes; /*number of symbols*/
+ tree->lengths = (unsigned*)lodepng_realloc(tree->lengths, numcodes * sizeof(unsigned));
+ if(!tree->lengths) return 83; /*alloc fail*/
+ /*initialize all lengths to 0*/
+ memset(tree->lengths, 0, numcodes * sizeof(unsigned));
+
+ error = lodepng_huffman_code_lengths(tree->lengths, frequencies, numcodes, maxbitlen);
+ if(!error) error = HuffmanTree_makeFromLengths2(tree);
+ return error;
+}
+
+static unsigned HuffmanTree_getCode(const HuffmanTree* tree, unsigned index)
+{
+ return tree->tree1d[index];
+}
+
+static unsigned HuffmanTree_getLength(const HuffmanTree* tree, unsigned index)
+{
+ return tree->lengths[index];
+}
+#endif /*LODEPNG_COMPILE_ENCODER*/
+
+/*get the literal and length code tree of a deflated block with fixed tree, as per the deflate specification*/
+static unsigned generateFixedLitLenTree(HuffmanTree* tree)
+{
+ unsigned i, error = 0;
+ unsigned* bitlen = (unsigned*)lodepng_malloc(NUM_DEFLATE_CODE_SYMBOLS * sizeof(unsigned));
+ if(!bitlen) return 83; /*alloc fail*/
+
+ /*288 possible codes: 0-255=literals, 256=endcode, 257-285=lengthcodes, 286-287=unused*/
+ for(i = 0; i <= 143; i++) bitlen[i] = 8;
+ for(i = 144; i <= 255; i++) bitlen[i] = 9;
+ for(i = 256; i <= 279; i++) bitlen[i] = 7;
+ for(i = 280; i <= 287; i++) bitlen[i] = 8;
+
+ error = HuffmanTree_makeFromLengths(tree, bitlen, NUM_DEFLATE_CODE_SYMBOLS, 15);
+
+ lodepng_free(bitlen);
+ return error;
+}
+
+/*get the distance code tree of a deflated block with fixed tree, as specified in the deflate specification*/
+static unsigned generateFixedDistanceTree(HuffmanTree* tree)
+{
+ unsigned i, error = 0;
+ unsigned* bitlen = (unsigned*)lodepng_malloc(NUM_DISTANCE_SYMBOLS * sizeof(unsigned));
+ if(!bitlen) return 83; /*alloc fail*/
+
+ /*there are 32 distance codes, but 30-31 are unused*/
+ for(i = 0; i < NUM_DISTANCE_SYMBOLS; i++) bitlen[i] = 5;
+ error = HuffmanTree_makeFromLengths(tree, bitlen, NUM_DISTANCE_SYMBOLS, 15);
+
+ lodepng_free(bitlen);
+ return error;
+}
+
+#ifdef LODEPNG_COMPILE_DECODER
+
+/*
+returns the code, or (unsigned)(-1) if error happened
+inbitlength is the length of the complete buffer, in bits (so its byte length times 8)
+*/
+static unsigned huffmanDecodeSymbol(const unsigned char* in, size_t* bp,
+ const HuffmanTree* codetree, size_t inbitlength)
+{
+ unsigned treepos = 0, ct;
+ for(;;)
+ {
+ if(*bp >= inbitlength) return (unsigned)(-1); /*error: end of input memory reached without endcode*/
+ /*
+ decode the symbol from the tree. The "readBitFromStream" code is inlined in
+ the expression below because this is the biggest bottleneck while decoding
+ */
+ ct = codetree->tree2d[(treepos << 1) + READBIT(*bp, in)];
+ (*bp)++;
+ if(ct < codetree->numcodes) return ct; /*the symbol is decoded, return it*/
+ else treepos = ct - codetree->numcodes; /*symbol not yet decoded, instead move tree position*/
+
+ if(treepos >= codetree->numcodes) return (unsigned)(-1); /*error: it appeared outside the codetree*/
+ }
+}
+#endif /*LODEPNG_COMPILE_DECODER*/
+
+#ifdef LODEPNG_COMPILE_DECODER
+
+/* ////////////////////////////////////////////////////////////////////////// */
+/* / Inflator (Decompressor) / */
+/* ////////////////////////////////////////////////////////////////////////// */
+
+/*get the tree of a deflated block with fixed tree, as specified in the deflate specification*/
+static void getTreeInflateFixed(HuffmanTree* tree_ll, HuffmanTree* tree_d)
+{
+ /*TODO: check for out of memory errors*/
+ generateFixedLitLenTree(tree_ll);
+ generateFixedDistanceTree(tree_d);
+}
+
+/*get the tree of a deflated block with dynamic tree, the tree itself is also Huffman compressed with a known tree*/
+static unsigned getTreeInflateDynamic(HuffmanTree* tree_ll, HuffmanTree* tree_d,
+ const unsigned char* in, size_t* bp, size_t inlength)
+{
+ /*make sure that length values that aren't filled in will be 0, or a wrong tree will be generated*/
+ unsigned error = 0;
+ unsigned n, HLIT, HDIST, HCLEN, i;
+ size_t inbitlength = inlength * 8;
+
+ /*see comments in deflateDynamic for explanation of the context and these variables, it is analogous*/
+ unsigned* bitlen_ll = 0; /*lit,len code lengths*/
+ unsigned* bitlen_d = 0; /*dist code lengths*/
+ /*code length code lengths ("clcl"), the bit lengths of the huffman tree used to compress bitlen_ll and bitlen_d*/
+ unsigned* bitlen_cl = 0;
+ HuffmanTree tree_cl; /*the code tree for code length codes (the huffman tree for compressed huffman trees)*/
+
+ if((*bp) >> 3 >= inlength - 2) return 49; /*error: the bit pointer is or will go past the memory*/
+
+ /*number of literal/length codes + 257. Unlike the spec, the value 257 is added to it here already*/
+ HLIT = readBitsFromStream(bp, in, 5) + 257;
+ /*number of distance codes. Unlike the spec, the value 1 is added to it here already*/
+ HDIST = readBitsFromStream(bp, in, 5) + 1;
+ /*number of code length codes. Unlike the spec, the value 4 is added to it here already*/
+ HCLEN = readBitsFromStream(bp, in, 4) + 4;
+
+ HuffmanTree_init(&tree_cl);
+
+ while(!error)
+ {
+ /*read the code length codes out of 3 * (amount of code length codes) bits*/
+
+ bitlen_cl = (unsigned*)lodepng_malloc(NUM_CODE_LENGTH_CODES * sizeof(unsigned));
+ if(!bitlen_cl) ERROR_BREAK(83 /*alloc fail*/);
+
+ for(i = 0; i < NUM_CODE_LENGTH_CODES; i++)
+ {
+ if(i < HCLEN) bitlen_cl[CLCL_ORDER[i]] = readBitsFromStream(bp, in, 3);
+ else bitlen_cl[CLCL_ORDER[i]] = 0; /*if not, it must stay 0*/
+ }
+
+ error = HuffmanTree_makeFromLengths(&tree_cl, bitlen_cl, NUM_CODE_LENGTH_CODES, 7);
+ if(error) break;
+
+ /*now we can use this tree to read the lengths for the tree that this function will return*/
+ bitlen_ll = (unsigned*)lodepng_malloc(NUM_DEFLATE_CODE_SYMBOLS * sizeof(unsigned));
+ bitlen_d = (unsigned*)lodepng_malloc(NUM_DISTANCE_SYMBOLS * sizeof(unsigned));
+ if(!bitlen_ll || !bitlen_d) ERROR_BREAK(83 /*alloc fail*/);
+ for(i = 0; i < NUM_DEFLATE_CODE_SYMBOLS; i++) bitlen_ll[i] = 0;
+ for(i = 0; i < NUM_DISTANCE_SYMBOLS; i++) bitlen_d[i] = 0;
+
+ /*i is the current symbol we're reading in the part that contains the code lengths of lit/len and dist codes*/
+ i = 0;
+ while(i < HLIT + HDIST)
+ {
+ unsigned code = huffmanDecodeSymbol(in, bp, &tree_cl, inbitlength);
+ if(code <= 15) /*a length code*/
+ {
+ if(i < HLIT) bitlen_ll[i] = code;
+ else bitlen_d[i - HLIT] = code;
+ i++;
+ }
+ else if(code == 16) /*repeat previous*/
+ {
+ unsigned replength = 3; /*read in the 2 bits that indicate repeat length (3-6)*/
+ unsigned value; /*set value to the previous code*/
+
+ if(*bp >= inbitlength) ERROR_BREAK(50); /*error, bit pointer jumps past memory*/
+ if (i == 0) ERROR_BREAK(54); /*can't repeat previous if i is 0*/
+
+ replength += readBitsFromStream(bp, in, 2);
+
+ if(i < HLIT + 1) value = bitlen_ll[i - 1];
+ else value = bitlen_d[i - HLIT - 1];
+ /*repeat this value in the next lengths*/
+ for(n = 0; n < replength; n++)
+ {
+ if(i >= HLIT + HDIST) ERROR_BREAK(13); /*error: i is larger than the amount of codes*/
+ if(i < HLIT) bitlen_ll[i] = value;
+ else bitlen_d[i - HLIT] = value;
+ i++;
+ }
+ }
+ else if(code == 17) /*repeat "0" 3-10 times*/
+ {
+ unsigned replength = 3; /*read in the bits that indicate repeat length*/
+ if(*bp >= inbitlength) ERROR_BREAK(50); /*error, bit pointer jumps past memory*/
+
+ replength += readBitsFromStream(bp, in, 3);
+
+ /*repeat this value in the next lengths*/
+ for(n = 0; n < replength; n++)
+ {
+ if(i >= HLIT + HDIST) ERROR_BREAK(14); /*error: i is larger than the amount of codes*/
+
+ if(i < HLIT) bitlen_ll[i] = 0;
+ else bitlen_d[i - HLIT] = 0;
+ i++;
+ }
+ }
+ else if(code == 18) /*repeat "0" 11-138 times*/
+ {
+ unsigned replength = 11; /*read in the bits that indicate repeat length*/
+ if(*bp >= inbitlength) ERROR_BREAK(50); /*error, bit pointer jumps past memory*/
+
+ replength += readBitsFromStream(bp, in, 7);
+
+ /*repeat this value in the next lengths*/
+ for(n = 0; n < replength; n++)
+ {
+ if(i >= HLIT + HDIST) ERROR_BREAK(15); /*error: i is larger than the amount of codes*/
+
+ if(i < HLIT) bitlen_ll[i] = 0;
+ else bitlen_d[i - HLIT] = 0;
+ i++;
+ }
+ }
+ else /*if(code == (unsigned)(-1))*/ /*huffmanDecodeSymbol returns (unsigned)(-1) in case of error*/
+ {
+ if(code == (unsigned)(-1))
+ {
+ /*return error code 10 or 11 depending on the situation that happened in huffmanDecodeSymbol
+ (10=no endcode, 11=wrong jump outside of tree)*/
+ error = (*bp) > inbitlength ? 10 : 11;
+ }
+ else error = 16; /*unexisting code, this can never happen*/
+ break;
+ }
+ }
+ if(error) break;
+
+ if(bitlen_ll[256] == 0) ERROR_BREAK(64); /*the length of the end code 256 must be larger than 0*/
+
+ /*now we've finally got HLIT and HDIST, so generate the code trees, and the function is done*/
+ error = HuffmanTree_makeFromLengths(tree_ll, bitlen_ll, NUM_DEFLATE_CODE_SYMBOLS, 15);
+ if(error) break;
+ error = HuffmanTree_makeFromLengths(tree_d, bitlen_d, NUM_DISTANCE_SYMBOLS, 15);
+
+ break; /*end of error-while*/
+ }
+
+ lodepng_free(bitlen_cl);
+ lodepng_free(bitlen_ll);
+ lodepng_free(bitlen_d);
+ HuffmanTree_cleanup(&tree_cl);
+
+ return error;
+}
+
+/*inflate a block with dynamic of fixed Huffman tree*/
+static unsigned inflateHuffmanBlock(ucvector* out, const unsigned char* in, size_t* bp,
+ size_t* pos, size_t inlength, unsigned btype)
+{
+ unsigned error = 0;
+ HuffmanTree tree_ll; /*the huffman tree for literal and length codes*/
+ HuffmanTree tree_d; /*the huffman tree for distance codes*/
+ size_t inbitlength = inlength * 8;
+
+ HuffmanTree_init(&tree_ll);
+ HuffmanTree_init(&tree_d);
+
+ if(btype == 1) getTreeInflateFixed(&tree_ll, &tree_d);
+ else if(btype == 2) error = getTreeInflateDynamic(&tree_ll, &tree_d, in, bp, inlength);
+
+ while(!error) /*decode all symbols until end reached, breaks at end code*/
+ {
+ /*code_ll is literal, length or end code*/
+ unsigned code_ll = huffmanDecodeSymbol(in, bp, &tree_ll, inbitlength);
+ if(code_ll <= 255) /*literal symbol*/
+ {
+ if((*pos) >= out->size)
+ {
+ /*reserve more room at once*/
+ if(!ucvector_resize(out, ((*pos) + 1) * 2)) ERROR_BREAK(83 /*alloc fail*/);
+ }
+ out->data[(*pos)] = (unsigned char)(code_ll);
+ (*pos)++;
+ }
+ else if(code_ll >= FIRST_LENGTH_CODE_INDEX && code_ll <= LAST_LENGTH_CODE_INDEX) /*length code*/
+ {
+ unsigned code_d, distance;
+ unsigned numextrabits_l, numextrabits_d; /*extra bits for length and distance*/
+ size_t start, forward, backward, length;
+
+ /*part 1: get length base*/
+ length = LENGTHBASE[code_ll - FIRST_LENGTH_CODE_INDEX];
+
+ /*part 2: get extra bits and add the value of that to length*/
+ numextrabits_l = LENGTHEXTRA[code_ll - FIRST_LENGTH_CODE_INDEX];
+ if(*bp >= inbitlength) ERROR_BREAK(51); /*error, bit pointer will jump past memory*/
+ length += readBitsFromStream(bp, in, numextrabits_l);
+
+ /*part 3: get distance code*/
+ code_d = huffmanDecodeSymbol(in, bp, &tree_d, inbitlength);
+ if(code_d > 29)
+ {
+ if(code_ll == (unsigned)(-1)) /*huffmanDecodeSymbol returns (unsigned)(-1) in case of error*/
+ {
+ /*return error code 10 or 11 depending on the situation that happened in huffmanDecodeSymbol
+ (10=no endcode, 11=wrong jump outside of tree)*/
+ error = (*bp) > inlength * 8 ? 10 : 11;
+ }
+ else error = 18; /*error: invalid distance code (30-31 are never used)*/
+ break;
+ }
+ distance = DISTANCEBASE[code_d];
+
+ /*part 4: get extra bits from distance*/
+ numextrabits_d = DISTANCEEXTRA[code_d];
+ if(*bp >= inbitlength) ERROR_BREAK(51); /*error, bit pointer will jump past memory*/
+
+ distance += readBitsFromStream(bp, in, numextrabits_d);
+
+ /*part 5: fill in all the out[n] values based on the length and dist*/
+ start = (*pos);
+ if(distance > start) ERROR_BREAK(52); /*too long backward distance*/
+ backward = start - distance;
+ if((*pos) + length >= out->size)
+ {
+ /*reserve more room at once*/
+ if(!ucvector_resize(out, ((*pos) + length) * 2)) ERROR_BREAK(83 /*alloc fail*/);
+ }
+
+ for(forward = 0; forward < length; forward++)
+ {
+ out->data[(*pos)] = out->data[backward];
+ (*pos)++;
+ backward++;
+ if(backward >= start) backward = start - distance;
+ }
+ }
+ else if(code_ll == 256)
+ {
+ break; /*end code, break the loop*/
+ }
+ else /*if(code == (unsigned)(-1))*/ /*huffmanDecodeSymbol returns (unsigned)(-1) in case of error*/
+ {
+ /*return error code 10 or 11 depending on the situation that happened in huffmanDecodeSymbol
+ (10=no endcode, 11=wrong jump outside of tree)*/
+ error = (*bp) > inlength * 8 ? 10 : 11;
+ break;
+ }
+ }
+
+ HuffmanTree_cleanup(&tree_ll);
+ HuffmanTree_cleanup(&tree_d);
+
+ return error;
+}
+
+static unsigned inflateNoCompression(ucvector* out, const unsigned char* in, size_t* bp, size_t* pos, size_t inlength)
+{
+ /*go to first boundary of byte*/
+ size_t p;
+ unsigned LEN, NLEN, n, error = 0;
+ while(((*bp) & 0x7) != 0) (*bp)++;
+ p = (*bp) / 8; /*byte position*/
+
+ /*read LEN (2 bytes) and NLEN (2 bytes)*/
+ if(p >= inlength - 4) return 52; /*error, bit pointer will jump past memory*/
+ LEN = in[p] + 256 * in[p + 1]; p += 2;
+ NLEN = in[p] + 256 * in[p + 1]; p += 2;
+
+ /*check if 16-bit NLEN is really the one's complement of LEN*/
+ if(LEN + NLEN != 65535) return 21; /*error: NLEN is not one's complement of LEN*/
+
+ if((*pos) + LEN >= out->size)
+ {
+ if(!ucvector_resize(out, (*pos) + LEN)) return 83; /*alloc fail*/
+ }
+
+ /*read the literal data: LEN bytes are now stored in the out buffer*/
+ if(p + LEN > inlength) return 23; /*error: reading outside of in buffer*/
+ for(n = 0; n < LEN; n++) out->data[(*pos)++] = in[p++];
+
+ (*bp) = p * 8;
+
+ return error;
+}
+
+static unsigned lodepng_inflatev(ucvector* out,
+ const unsigned char* in, size_t insize,
+ const LodePNGDecompressSettings* settings)
+{
+ /*bit pointer in the "in" data, current byte is bp >> 3, current bit is bp & 0x7 (from lsb to msb of the byte)*/
+ size_t bp = 0;
+ unsigned BFINAL = 0;
+ size_t pos = 0; /*byte position in the out buffer*/
+
+ unsigned error = 0;
+
+ (void)settings;
+
+ while(!BFINAL)
+ {
+ unsigned BTYPE;
+ if(bp + 2 >= insize * 8) return 52; /*error, bit pointer will jump past memory*/
+ BFINAL = readBitFromStream(&bp, in);
+ BTYPE = 1 * readBitFromStream(&bp, in);
+ BTYPE += 2 * readBitFromStream(&bp, in);
+
+ if(BTYPE == 3) return 20; /*error: invalid BTYPE*/
+ else if(BTYPE == 0) error = inflateNoCompression(out, in, &bp, &pos, insize); /*no compression*/
+ else error = inflateHuffmanBlock(out, in, &bp, &pos, insize, BTYPE); /*compression, BTYPE 01 or 10*/
+
+ if(error) return error;
+ }
+
+ /*Only now we know the true size of out, resize it to that*/
+ if(!ucvector_resize(out, pos)) error = 83; /*alloc fail*/
+
+ return error;
+}
+
+unsigned lodepng_inflate(unsigned char** out, size_t* outsize,
+ const unsigned char* in, size_t insize,
+ const LodePNGDecompressSettings* settings)
+{
+ unsigned error;
+ ucvector v;
+ ucvector_init_buffer(&v, *out, *outsize);
+ error = lodepng_inflatev(&v, in, insize, settings);
+ *out = v.data;
+ *outsize = v.size;
+ return error;
+}
+
+static unsigned inflate(unsigned char** out, size_t* outsize,
+ const unsigned char* in, size_t insize,
+ const LodePNGDecompressSettings* settings)
+{
+ if(settings->custom_inflate)
+ {
+ return settings->custom_inflate(out, outsize, in, insize, settings);
+ }
+ else
+ {
+ return lodepng_inflate(out, outsize, in, insize, settings);
+ }
+}
+
+#endif /*LODEPNG_COMPILE_DECODER*/
+
+#ifdef LODEPNG_COMPILE_ENCODER
+
+/* ////////////////////////////////////////////////////////////////////////// */
+/* / Deflator (Compressor) / */
+/* ////////////////////////////////////////////////////////////////////////// */
+
+static const size_t MAX_SUPPORTED_DEFLATE_LENGTH = 258;
+
+/*bitlen is the size in bits of the code*/
+static void addHuffmanSymbol(size_t* bp, ucvector* compressed, unsigned code, unsigned bitlen)
+{
+ addBitsToStreamReversed(bp, compressed, code, bitlen);
+}
+
+/*search the index in the array, that has the largest value smaller than or equal to the given value,
+given array must be sorted (if no value is smaller, it returns the size of the given array)*/
+static size_t searchCodeIndex(const unsigned* array, size_t array_size, size_t value)
+{
+ /*linear search implementation*/
+ /*for(size_t i = 1; i < array_size; i++) if(array[i] > value) return i - 1;
+ return array_size - 1;*/
+
+ /*binary search implementation (not that much faster) (precondition: array_size > 0)*/
+ size_t left = 1;
+ size_t right = array_size - 1;
+ while(left <= right)
+ {
+ size_t mid = (left + right) / 2;
+ if(array[mid] <= value) left = mid + 1; /*the value to find is more to the right*/
+ else if(array[mid - 1] > value) right = mid - 1; /*the value to find is more to the left*/
+ else return mid - 1;
+ }
+ return array_size - 1;
+}
+
+static void addLengthDistance(uivector* values, size_t length, size_t distance)
+{
+ /*values in encoded vector are those used by deflate:
+ 0-255: literal bytes
+ 256: end
+ 257-285: length/distance pair (length code, followed by extra length bits, distance code, extra distance bits)
+ 286-287: invalid*/
+
+ unsigned length_code = (unsigned)searchCodeIndex(LENGTHBASE, 29, length);
+ unsigned extra_length = (unsigned)(length - LENGTHBASE[length_code]);
+ unsigned dist_code = (unsigned)searchCodeIndex(DISTANCEBASE, 30, distance);
+ unsigned extra_distance = (unsigned)(distance - DISTANCEBASE[dist_code]);
+
+ uivector_push_back(values, length_code + FIRST_LENGTH_CODE_INDEX);
+ uivector_push_back(values, extra_length);
+ uivector_push_back(values, dist_code);
+ uivector_push_back(values, extra_distance);
+}
+
+static const unsigned HASH_BIT_MASK = 65535;
+static const unsigned HASH_NUM_VALUES = 65536;
+static const unsigned HASH_NUM_CHARACTERS = 3;
+static const unsigned HASH_SHIFT = 2;
+/*
+The HASH_NUM_CHARACTERS value is used to make encoding faster by using longer
+sequences to generate a hash value from the stream bytes. Setting it to 3
+gives exactly the same compression as the brute force method, since deflate's
+run length encoding starts with lengths of 3. Setting it to higher values,
+like 6, can make the encoding faster (not always though!), but will cause the
+encoding to miss any length between 3 and this value, so that the compression
+may be worse (but this can vary too depending on the image, sometimes it is
+even a bit better instead).
+The HASH_NUM_VALUES is the amount of unique possible hash values that
+combinations of bytes can give, the higher it is the more memory is needed, but
+if it's too low the advantage of hashing is gone.
+*/
+
+typedef struct Hash
+{
+ int* head; /*hash value to head circular pos*/
+ int* val; /*circular pos to hash value*/
+ /*circular pos to prev circular pos*/
+ unsigned short* chain;
+ unsigned short* zeros;
+} Hash;
+
+static unsigned hash_init(Hash* hash, unsigned windowsize)
+{
+ unsigned i;
+ hash->head = (int*)lodepng_malloc(sizeof(int) * HASH_NUM_VALUES);
+ hash->val = (int*)lodepng_malloc(sizeof(int) * windowsize);
+ hash->chain = (unsigned short*)lodepng_malloc(sizeof(unsigned short) * windowsize);
+ hash->zeros = (unsigned short*)lodepng_malloc(sizeof(unsigned short) * windowsize);
+
+ if(!hash->head || !hash->val || !hash->chain || !hash->zeros) return 83; /*alloc fail*/
+
+ /*initialize hash table*/
+ for(i = 0; i < HASH_NUM_VALUES; i++) hash->head[i] = -1;
+ for(i = 0; i < windowsize; i++) hash->val[i] = -1;
+ for(i = 0; i < windowsize; i++) hash->chain[i] = i; /*same value as index indicates uninitialized*/
+
+ return 0;
+}
+
+static void hash_cleanup(Hash* hash)
+{
+ lodepng_free(hash->head);
+ lodepng_free(hash->val);
+ lodepng_free(hash->chain);
+ lodepng_free(hash->zeros);
+}
+
+static unsigned getHash(const unsigned char* data, size_t size, size_t pos)
+{
+ unsigned result = 0;
+ if (HASH_NUM_CHARACTERS == 3 && pos + 2 < size) {
+ result ^= (data[pos + 0] << (0 * HASH_SHIFT));
+ result ^= (data[pos + 1] << (1 * HASH_SHIFT));
+ result ^= (data[pos + 2] << (2 * HASH_SHIFT));
+ } else {
+ size_t amount, i;
+ if(pos >= size) return 0;
+ amount = HASH_NUM_CHARACTERS;
+ if(pos + amount >= size) amount = size - pos;
+ for(i = 0; i < amount; i++) result ^= (data[pos + i] << (i * HASH_SHIFT));
+ }
+ return result & HASH_BIT_MASK;
+}
+
+static unsigned countZeros(const unsigned char* data, size_t size, size_t pos)
+{
+ const unsigned char* start = data + pos;
+ const unsigned char* end = start + MAX_SUPPORTED_DEFLATE_LENGTH;
+ if(end > data + size) end = data + size;
+ data = start;
+ while (data != end && *data == 0) data++;
+ /*subtracting two addresses returned as 32-bit number (max value is MAX_SUPPORTED_DEFLATE_LENGTH)*/
+ return (unsigned)(data - start);
+}
+
+/*wpos = pos & (windowsize - 1)*/
+static void updateHashChain(Hash* hash, size_t wpos, int hashval)
+{
+ hash->val[wpos] = hashval;
+ if(hash->head[hashval] != -1) hash->chain[wpos] = hash->head[hashval];
+ hash->head[hashval] = wpos;
+}
+
+/*
+LZ77-encode the data. Return value is error code. The input are raw bytes, the output
+is in the form of unsigned integers with codes representing for example literal bytes, or
+length/distance pairs.
+It uses a hash table technique to let it encode faster. When doing LZ77 encoding, a
+sliding window (of windowsize) is used, and all past bytes in that window can be used as
+the "dictionary". A brute force search through all possible distances would be slow, and
+this hash technique is one out of several ways to speed this up.
+*/
+static unsigned encodeLZ77(uivector* out, Hash* hash,
+ const unsigned char* in, size_t inpos, size_t insize, unsigned windowsize,
+ unsigned minmatch, unsigned nicematch, unsigned lazymatching)
+{
+ unsigned pos, i, error = 0;
+ /*for large window lengths, assume the user wants no compression loss. Otherwise, max hash chain length speedup.*/
+ unsigned maxchainlength = windowsize >= 8192 ? windowsize : windowsize / 8;
+ unsigned maxlazymatch = windowsize >= 8192 ? MAX_SUPPORTED_DEFLATE_LENGTH : 64;
+
+ unsigned usezeros = 1; /*not sure if setting it to false for windowsize < 8192 is better or worse*/
+ unsigned numzeros = 0;
+
+ unsigned offset; /*the offset represents the distance in LZ77 terminology*/
+ unsigned length;
+ unsigned lazy = 0;
+ unsigned lazylength = 0, lazyoffset = 0;
+ unsigned hashval;
+ unsigned current_offset, current_length;
+ const unsigned char *lastptr, *foreptr, *backptr;
+ unsigned hashpos, prevpos;
+
+ if(windowsize <= 0 || windowsize > 32768) return 60; /*error: windowsize smaller/larger than allowed*/
+ if((windowsize & (windowsize - 1)) != 0) return 90; /*error: must be power of two*/
+
+ if(nicematch > MAX_SUPPORTED_DEFLATE_LENGTH) nicematch = MAX_SUPPORTED_DEFLATE_LENGTH;
+
+ for(pos = inpos; pos < insize; pos++)
+ {
+ size_t wpos = pos & (windowsize - 1); /*position for in 'circular' hash buffers*/
+ unsigned chainlength = 0;
+
+ hashval = getHash(in, insize, pos);
+ updateHashChain(hash, wpos, hashval);
+
+ if(usezeros && hashval == 0)
+ {
+ if (numzeros == 0) numzeros = countZeros(in, insize, pos);
+ else if (pos + numzeros >= insize || in[pos + numzeros - 1] != 0) numzeros--;
+ hash->zeros[wpos] = numzeros;
+ }
+ else
+ {
+ numzeros = 0;
+ }
+
+ /*the length and offset found for the current position*/
+ length = 0;
+ offset = 0;
+
+ prevpos = hash->head[hashval];
+ hashpos = hash->chain[prevpos];
+
+ lastptr = &in[insize < pos + MAX_SUPPORTED_DEFLATE_LENGTH ? insize : pos + MAX_SUPPORTED_DEFLATE_LENGTH];
+
+ /*search for the longest string*/
+ for(;;)
+ {
+ /*stop when went completely around the circular buffer*/
+ if(prevpos < wpos && hashpos > prevpos && hashpos <= wpos) break;
+ if(prevpos > wpos && (hashpos <= wpos || hashpos > prevpos)) break;
+ if(chainlength++ >= maxchainlength) break;
+
+ current_offset = hashpos <= wpos ? wpos - hashpos : wpos - hashpos + windowsize;
+ if(current_offset > 0)
+ {
+ /*test the next characters*/
+ foreptr = &in[pos];
+ backptr = &in[pos - current_offset];
+
+ /*common case in PNGs is lots of zeros. Quickly skip over them as a speedup*/
+ if(usezeros && hashval == 0 && hash->val[hashpos] == 0 /*hashval[hashpos] may be out of date*/)
+ {
+ unsigned skip = hash->zeros[hashpos];
+ if(skip > numzeros) skip = numzeros;
+ backptr += skip;
+ foreptr += skip;
+ }
+
+ while(foreptr != lastptr && *backptr == *foreptr) /*maximum supported length by deflate is max length*/
+ {
+ ++backptr;
+ ++foreptr;
+ }
+ current_length = (unsigned)(foreptr - &in[pos]);
+
+ if(current_length > length)
+ {
+ length = current_length; /*the longest length*/
+ offset = current_offset; /*the offset that is related to this longest length*/
+ /*jump out once a length of max length is found (speed gain). This also jumps
+ out if length is MAX_SUPPORTED_DEFLATE_LENGTH*/
+ if(current_length >= nicematch) break;
+ }
+ }
+
+ if(hashpos == hash->chain[hashpos]) break;
+
+ prevpos = hashpos;
+ hashpos = hash->chain[hashpos];
+ }
+
+ if(lazymatching)
+ {
+ if(!lazy && length >= 3 && length <= maxlazymatch && length < MAX_SUPPORTED_DEFLATE_LENGTH)
+ {
+ lazy = 1;
+ lazylength = length;
+ lazyoffset = offset;
+ continue; /*try the next byte*/
+ }
+ if(lazy)
+ {
+ lazy = 0;
+ if(pos == 0) ERROR_BREAK(81);
+ if(length > lazylength + 1)
+ {
+ /*push the previous character as literal*/
+ if(!uivector_push_back(out, in[pos - 1])) ERROR_BREAK(83 /*alloc fail*/);
+ }
+ else
+ {
+ length = lazylength;
+ offset = lazyoffset;
+ hash->head[hashval] = -1; /*the same hashchain update will be done, this ensures no wrong alteration*/
+ pos--;
+ }
+ }
+ }
+ if(length >= 3 && offset > windowsize) ERROR_BREAK(86 /*too big (or overflown negative) offset*/);
+
+ /*encode it as length/distance pair or literal value*/
+ if(length < 3) /*only lengths of 3 or higher are supported as length/distance pair*/
+ {
+ if(!uivector_push_back(out, in[pos])) ERROR_BREAK(83 /*alloc fail*/);
+ }
+ else if(length < minmatch || (length == 3 && offset > 4096))
+ {
+ /*compensate for the fact that longer offsets have more extra bits, a
+ length of only 3 may be not worth it then*/
+ if(!uivector_push_back(out, in[pos])) ERROR_BREAK(83 /*alloc fail*/);
+ }
+ else
+ {
+ addLengthDistance(out, length, offset);
+ for(i = 1; i < length; i++)
+ {
+ pos++;
+ wpos = pos & (windowsize - 1);
+ hashval = getHash(in, insize, pos);
+ updateHashChain(hash, wpos, hashval);
+ if(usezeros && hashval == 0)
+ {
+ if (numzeros == 0) numzeros = countZeros(in, insize, pos);
+ else if (pos + numzeros >= insize || in[pos + numzeros - 1] != 0) numzeros--;
+ hash->zeros[wpos] = numzeros;
+ }
+ else
+ {
+ numzeros = 0;
+ }
+ }
+ }
+ } /*end of the loop through each character of input*/
+
+ return error;
+}
+
+/* /////////////////////////////////////////////////////////////////////////// */
+
+static unsigned deflateNoCompression(ucvector* out, const unsigned char* data, size_t datasize)
+{
+ /*non compressed deflate block data: 1 bit BFINAL,2 bits BTYPE,(5 bits): it jumps to start of next byte,
+ 2 bytes LEN, 2 bytes NLEN, LEN bytes literal DATA*/
+
+ size_t i, j, numdeflateblocks = (datasize + 65534) / 65535;
+ unsigned datapos = 0;
+ for(i = 0; i < numdeflateblocks; i++)
+ {
+ unsigned BFINAL, BTYPE, LEN, NLEN;
+ unsigned char firstbyte;
+
+ BFINAL = (i == numdeflateblocks - 1);
+ BTYPE = 0;
+
+ firstbyte = (unsigned char)(BFINAL + ((BTYPE & 1) << 1) + ((BTYPE & 2) << 1));
+ ucvector_push_back(out, firstbyte);
+
+ LEN = 65535;
+ if(datasize - datapos < 65535) LEN = (unsigned)datasize - datapos;
+ NLEN = 65535 - LEN;
+
+ ucvector_push_back(out, (unsigned char)(LEN % 256));
+ ucvector_push_back(out, (unsigned char)(LEN / 256));
+ ucvector_push_back(out, (unsigned char)(NLEN % 256));
+ ucvector_push_back(out, (unsigned char)(NLEN / 256));
+
+ /*Decompressed data*/
+ for(j = 0; j < 65535 && datapos < datasize; j++)
+ {
+ ucvector_push_back(out, data[datapos++]);
+ }
+ }
+
+ return 0;
+}
+
+/*
+write the lz77-encoded data, which has lit, len and dist codes, to compressed stream using huffman trees.
+tree_ll: the tree for lit and len codes.
+tree_d: the tree for distance codes.
+*/
+static void writeLZ77data(size_t* bp, ucvector* out, const uivector* lz77_encoded,
+ const HuffmanTree* tree_ll, const HuffmanTree* tree_d)
+{
+ size_t i = 0;
+ for(i = 0; i < lz77_encoded->size; i++)
+ {
+ unsigned val = lz77_encoded->data[i];
+ addHuffmanSymbol(bp, out, HuffmanTree_getCode(tree_ll, val), HuffmanTree_getLength(tree_ll, val));
+ if(val > 256) /*for a length code, 3 more things have to be added*/
+ {
+ unsigned length_index = val - FIRST_LENGTH_CODE_INDEX;
+ unsigned n_length_extra_bits = LENGTHEXTRA[length_index];
+ unsigned length_extra_bits = lz77_encoded->data[++i];
+
+ unsigned distance_code = lz77_encoded->data[++i];
+
+ unsigned distance_index = distance_code;
+ unsigned n_distance_extra_bits = DISTANCEEXTRA[distance_index];
+ unsigned distance_extra_bits = lz77_encoded->data[++i];
+
+ addBitsToStream(bp, out, length_extra_bits, n_length_extra_bits);
+ addHuffmanSymbol(bp, out, HuffmanTree_getCode(tree_d, distance_code),
+ HuffmanTree_getLength(tree_d, distance_code));
+ addBitsToStream(bp, out, distance_extra_bits, n_distance_extra_bits);
+ }
+ }
+}
+
+/*Deflate for a block of type "dynamic", that is, with freely, optimally, created huffman trees*/
+static unsigned deflateDynamic(ucvector* out, size_t* bp, Hash* hash,
+ const unsigned char* data, size_t datapos, size_t dataend,
+ const LodePNGCompressSettings* settings, int final)
+{
+ unsigned error = 0;
+
+ /*
+ A block is compressed as follows: The PNG data is lz77 encoded, resulting in
+ literal bytes and length/distance pairs. This is then huffman compressed with
+ two huffman trees. One huffman tree is used for the lit and len values ("ll"),
+ another huffman tree is used for the dist values ("d"). These two trees are
+ stored using their code lengths, and to compress even more these code lengths
+ are also run-length encoded and huffman compressed. This gives a huffman tree
+ of code lengths "cl". The code lenghts used to describe this third tree are
+ the code length code lengths ("clcl").
+ */
+
+ /*The lz77 encoded data, represented with integers since there will also be length and distance codes in it*/
+ uivector lz77_encoded;
+ HuffmanTree tree_ll; /*tree for lit,len values*/
+ HuffmanTree tree_d; /*tree for distance codes*/
+ HuffmanTree tree_cl; /*tree for encoding the code lengths representing tree_ll and tree_d*/
+ uivector frequencies_ll; /*frequency of lit,len codes*/
+ uivector frequencies_d; /*frequency of dist codes*/
+ uivector frequencies_cl; /*frequency of code length codes*/
+ uivector bitlen_lld; /*lit,len,dist code lenghts (int bits), literally (without repeat codes).*/
+ uivector bitlen_lld_e; /*bitlen_lld encoded with repeat codes (this is a rudemtary run length compression)*/
+ /*bitlen_cl is the code length code lengths ("clcl"). The bit lengths of codes to represent tree_cl
+ (these are written as is in the file, it would be crazy to compress these using yet another huffman
+ tree that needs to be represented by yet another set of code lengths)*/
+ uivector bitlen_cl;
+ size_t datasize = dataend - datapos;
+
+ /*
+ Due to the huffman compression of huffman tree representations ("two levels"), there are some anologies:
+ bitlen_lld is to tree_cl what data is to tree_ll and tree_d.
+ bitlen_lld_e is to bitlen_lld what lz77_encoded is to data.
+ bitlen_cl is to bitlen_lld_e what bitlen_lld is to lz77_encoded.
+ */
+
+ unsigned BFINAL = final;
+ size_t numcodes_ll, numcodes_d, i;
+ unsigned HLIT, HDIST, HCLEN;
+
+ uivector_init(&lz77_encoded);
+ HuffmanTree_init(&tree_ll);
+ HuffmanTree_init(&tree_d);
+ HuffmanTree_init(&tree_cl);
+ uivector_init(&frequencies_ll);
+ uivector_init(&frequencies_d);
+ uivector_init(&frequencies_cl);
+ uivector_init(&bitlen_lld);
+ uivector_init(&bitlen_lld_e);
+ uivector_init(&bitlen_cl);
+
+ /*This while loop never loops due to a break at the end, it is here to
+ allow breaking out of it to the cleanup phase on error conditions.*/
+ while(!error)
+ {
+ if(settings->use_lz77)
+ {
+ error = encodeLZ77(&lz77_encoded, hash, data, datapos, dataend, settings->windowsize,
+ settings->minmatch, settings->nicematch, settings->lazymatching);
+ if(error) break;
+ }
+ else
+ {
+ if(!uivector_resize(&lz77_encoded, datasize)) ERROR_BREAK(83 /*alloc fail*/);
+ for(i = datapos; i < dataend; i++) lz77_encoded.data[i] = data[i]; /*no LZ77, but still will be Huffman compressed*/
+ }
+
+ if(!uivector_resizev(&frequencies_ll, 286, 0)) ERROR_BREAK(83 /*alloc fail*/);
+ if(!uivector_resizev(&frequencies_d, 30, 0)) ERROR_BREAK(83 /*alloc fail*/);
+
+ /*Count the frequencies of lit, len and dist codes*/
+ for(i = 0; i < lz77_encoded.size; i++)
+ {
+ unsigned symbol = lz77_encoded.data[i];
+ frequencies_ll.data[symbol]++;
+ if(symbol > 256)
+ {
+ unsigned dist = lz77_encoded.data[i + 2];
+ frequencies_d.data[dist]++;
+ i += 3;
+ }
+ }
+ frequencies_ll.data[256] = 1; /*there will be exactly 1 end code, at the end of the block*/
+
+ /*Make both huffman trees, one for the lit and len codes, one for the dist codes*/
+ error = HuffmanTree_makeFromFrequencies(&tree_ll, frequencies_ll.data, 257, frequencies_ll.size, 15);
+ if(error) break;
+ /*2, not 1, is chosen for mincodes: some buggy PNG decoders require at least 2 symbols in the dist tree*/
+ error = HuffmanTree_makeFromFrequencies(&tree_d, frequencies_d.data, 2, frequencies_d.size, 15);
+ if(error) break;
+
+ numcodes_ll = tree_ll.numcodes; if(numcodes_ll > 286) numcodes_ll = 286;
+ numcodes_d = tree_d.numcodes; if(numcodes_d > 30) numcodes_d = 30;
+ /*store the code lengths of both generated trees in bitlen_lld*/
+ for(i = 0; i < numcodes_ll; i++) uivector_push_back(&bitlen_lld, HuffmanTree_getLength(&tree_ll, (unsigned)i));
+ for(i = 0; i < numcodes_d; i++) uivector_push_back(&bitlen_lld, HuffmanTree_getLength(&tree_d, (unsigned)i));
+
+ /*run-length compress bitlen_ldd into bitlen_lld_e by using repeat codes 16 (copy length 3-6 times),
+ 17 (3-10 zeroes), 18 (11-138 zeroes)*/
+ for(i = 0; i < (unsigned)bitlen_lld.size; i++)
+ {
+ unsigned j = 0; /*amount of repititions*/
+ while(i + j + 1 < (unsigned)bitlen_lld.size && bitlen_lld.data[i + j + 1] == bitlen_lld.data[i]) j++;
+
+ if(bitlen_lld.data[i] == 0 && j >= 2) /*repeat code for zeroes*/
+ {
+ j++; /*include the first zero*/
+ if(j <= 10) /*repeat code 17 supports max 10 zeroes*/
+ {
+ uivector_push_back(&bitlen_lld_e, 17);
+ uivector_push_back(&bitlen_lld_e, j - 3);
+ }
+ else /*repeat code 18 supports max 138 zeroes*/
+ {
+ if(j > 138) j = 138;
+ uivector_push_back(&bitlen_lld_e, 18);
+ uivector_push_back(&bitlen_lld_e, j - 11);
+ }
+ i += (j - 1);
+ }
+ else if(j >= 3) /*repeat code for value other than zero*/
+ {
+ size_t k;
+ unsigned num = j / 6, rest = j % 6;
+ uivector_push_back(&bitlen_lld_e, bitlen_lld.data[i]);
+ for(k = 0; k < num; k++)
+ {
+ uivector_push_back(&bitlen_lld_e, 16);
+ uivector_push_back(&bitlen_lld_e, 6 - 3);
+ }
+ if(rest >= 3)
+ {
+ uivector_push_back(&bitlen_lld_e, 16);
+ uivector_push_back(&bitlen_lld_e, rest - 3);
+ }
+ else j -= rest;
+ i += j;
+ }
+ else /*too short to benefit from repeat code*/
+ {
+ uivector_push_back(&bitlen_lld_e, bitlen_lld.data[i]);
+ }
+ }
+
+ /*generate tree_cl, the huffmantree of huffmantrees*/
+
+ if(!uivector_resizev(&frequencies_cl, NUM_CODE_LENGTH_CODES, 0)) ERROR_BREAK(83 /*alloc fail*/);
+ for(i = 0; i < bitlen_lld_e.size; i++)
+ {
+ frequencies_cl.data[bitlen_lld_e.data[i]]++;
+ /*after a repeat code come the bits that specify the number of repetitions,
+ those don't need to be in the frequencies_cl calculation*/
+ if(bitlen_lld_e.data[i] >= 16) i++;
+ }
+
+ error = HuffmanTree_makeFromFrequencies(&tree_cl, frequencies_cl.data,
+ frequencies_cl.size, frequencies_cl.size, 7);
+ if(error) break;
+
+ if(!uivector_resize(&bitlen_cl, tree_cl.numcodes)) ERROR_BREAK(83 /*alloc fail*/);
+ for(i = 0; i < tree_cl.numcodes; i++)
+ {
+ /*lenghts of code length tree is in the order as specified by deflate*/
+ bitlen_cl.data[i] = HuffmanTree_getLength(&tree_cl, CLCL_ORDER[i]);
+ }
+ while(bitlen_cl.data[bitlen_cl.size - 1] == 0 && bitlen_cl.size > 4)
+ {
+ /*remove zeros at the end, but minimum size must be 4*/
+ if(!uivector_resize(&bitlen_cl, bitlen_cl.size - 1)) ERROR_BREAK(83 /*alloc fail*/);
+ }
+ if(error) break;
+
+ /*
+ Write everything into the output
+
+ After the BFINAL and BTYPE, the dynamic block consists out of the following:
+ - 5 bits HLIT, 5 bits HDIST, 4 bits HCLEN
+ - (HCLEN+4)*3 bits code lengths of code length alphabet
+ - HLIT + 257 code lenghts of lit/length alphabet (encoded using the code length
+ alphabet, + possible repetition codes 16, 17, 18)
+ - HDIST + 1 code lengths of distance alphabet (encoded using the code length
+ alphabet, + possible repetition codes 16, 17, 18)
+ - compressed data
+ - 256 (end code)
+ */
+
+ /*Write block type*/
+ addBitToStream(bp, out, BFINAL);
+ addBitToStream(bp, out, 0); /*first bit of BTYPE "dynamic"*/
+ addBitToStream(bp, out, 1); /*second bit of BTYPE "dynamic"*/
+
+ /*write the HLIT, HDIST and HCLEN values*/
+ HLIT = (unsigned)(numcodes_ll - 257);
+ HDIST = (unsigned)(numcodes_d - 1);
+ HCLEN = (unsigned)bitlen_cl.size - 4;
+ /*trim zeroes for HCLEN. HLIT and HDIST were already trimmed at tree creation*/
+ while(!bitlen_cl.data[HCLEN + 4 - 1] && HCLEN > 0) HCLEN--;
+ addBitsToStream(bp, out, HLIT, 5);
+ addBitsToStream(bp, out, HDIST, 5);
+ addBitsToStream(bp, out, HCLEN, 4);
+
+ /*write the code lenghts of the code length alphabet*/
+ for(i = 0; i < HCLEN + 4; i++) addBitsToStream(bp, out, bitlen_cl.data[i], 3);
+
+ /*write the lenghts of the lit/len AND the dist alphabet*/
+ for(i = 0; i < bitlen_lld_e.size; i++)
+ {
+ addHuffmanSymbol(bp, out, HuffmanTree_getCode(&tree_cl, bitlen_lld_e.data[i]),
+ HuffmanTree_getLength(&tree_cl, bitlen_lld_e.data[i]));
+ /*extra bits of repeat codes*/
+ if(bitlen_lld_e.data[i] == 16) addBitsToStream(bp, out, bitlen_lld_e.data[++i], 2);
+ else if(bitlen_lld_e.data[i] == 17) addBitsToStream(bp, out, bitlen_lld_e.data[++i], 3);
+ else if(bitlen_lld_e.data[i] == 18) addBitsToStream(bp, out, bitlen_lld_e.data[++i], 7);
+ }
+
+ /*write the compressed data symbols*/
+ writeLZ77data(bp, out, &lz77_encoded, &tree_ll, &tree_d);
+ /*error: the length of the end code 256 must be larger than 0*/
+ if(HuffmanTree_getLength(&tree_ll, 256) == 0) ERROR_BREAK(64);
+
+ /*write the end code*/
+ addHuffmanSymbol(bp, out, HuffmanTree_getCode(&tree_ll, 256), HuffmanTree_getLength(&tree_ll, 256));
+
+ break; /*end of error-while*/
+ }
+
+ /*cleanup*/
+ uivector_cleanup(&lz77_encoded);
+ HuffmanTree_cleanup(&tree_ll);
+ HuffmanTree_cleanup(&tree_d);
+ HuffmanTree_cleanup(&tree_cl);
+ uivector_cleanup(&frequencies_ll);
+ uivector_cleanup(&frequencies_d);
+ uivector_cleanup(&frequencies_cl);
+ uivector_cleanup(&bitlen_lld_e);
+ uivector_cleanup(&bitlen_lld);
+ uivector_cleanup(&bitlen_cl);
+
+ return error;
+}
+
+static unsigned deflateFixed(ucvector* out, size_t* bp, Hash* hash,
+ const unsigned char* data,
+ size_t datapos, size_t dataend,
+ const LodePNGCompressSettings* settings, int final)
+{
+ HuffmanTree tree_ll; /*tree for literal values and length codes*/
+ HuffmanTree tree_d; /*tree for distance codes*/
+
+ unsigned BFINAL = final;
+ unsigned error = 0;
+ size_t i;
+
+ HuffmanTree_init(&tree_ll);
+ HuffmanTree_init(&tree_d);
+
+ generateFixedLitLenTree(&tree_ll);
+ generateFixedDistanceTree(&tree_d);
+
+ addBitToStream(bp, out, BFINAL);
+ addBitToStream(bp, out, 1); /*first bit of BTYPE*/
+ addBitToStream(bp, out, 0); /*second bit of BTYPE*/
+
+ if(settings->use_lz77) /*LZ77 encoded*/
+ {
+ uivector lz77_encoded;
+ uivector_init(&lz77_encoded);
+ error = encodeLZ77(&lz77_encoded, hash, data, datapos, dataend, settings->windowsize,
+ settings->minmatch, settings->nicematch, settings->lazymatching);
+ if(!error) writeLZ77data(bp, out, &lz77_encoded, &tree_ll, &tree_d);
+ uivector_cleanup(&lz77_encoded);
+ }
+ else /*no LZ77, but still will be Huffman compressed*/
+ {
+ for(i = datapos; i < dataend; i++)
+ {
+ addHuffmanSymbol(bp, out, HuffmanTree_getCode(&tree_ll, data[i]), HuffmanTree_getLength(&tree_ll, data[i]));
+ }
+ }
+ /*add END code*/
+ if(!error) addHuffmanSymbol(bp, out, HuffmanTree_getCode(&tree_ll, 256), HuffmanTree_getLength(&tree_ll, 256));
+
+ /*cleanup*/
+ HuffmanTree_cleanup(&tree_ll);
+ HuffmanTree_cleanup(&tree_d);
+
+ return error;
+}
+
+static unsigned lodepng_deflatev(ucvector* out, const unsigned char* in, size_t insize,
+ const LodePNGCompressSettings* settings)
+{
+ unsigned error = 0;
+ size_t i, blocksize, numdeflateblocks;
+ size_t bp = 0; /*the bit pointer*/
+ Hash hash;
+
+ if(settings->btype > 2) return 61;
+ else if(settings->btype == 0) return deflateNoCompression(out, in, insize);
+ else if(settings->btype == 1) blocksize = insize;
+ else /*if(settings->btype == 2)*/
+ {
+ blocksize = insize / 8 + 8;
+ if(blocksize < 65535) blocksize = 65535;
+ }
+
+ numdeflateblocks = (insize + blocksize - 1) / blocksize;
+ if(numdeflateblocks == 0) numdeflateblocks = 1;
+
+ error = hash_init(&hash, settings->windowsize);
+ if(error) return error;
+
+ for(i = 0; i < numdeflateblocks && !error; i++)
+ {
+ int final = i == numdeflateblocks - 1;
+ size_t start = i * blocksize;
+ size_t end = start + blocksize;
+ if(end > insize) end = insize;
+
+ if(settings->btype == 1) error = deflateFixed(out, &bp, &hash, in, start, end, settings, final);
+ else if(settings->btype == 2) error = deflateDynamic(out, &bp, &hash, in, start, end, settings, final);
+ }
+
+ hash_cleanup(&hash);
+
+ return error;
+}
+
+unsigned lodepng_deflate(unsigned char** out, size_t* outsize,
+ const unsigned char* in, size_t insize,
+ const LodePNGCompressSettings* settings)
+{
+ unsigned error;
+ ucvector v;
+ ucvector_init_buffer(&v, *out, *outsize);
+ error = lodepng_deflatev(&v, in, insize, settings);
+ *out = v.data;
+ *outsize = v.size;
+ return error;
+}
+
+static unsigned deflate(unsigned char** out, size_t* outsize,
+ const unsigned char* in, size_t insize,
+ const LodePNGCompressSettings* settings)
+{
+ if(settings->custom_deflate)
+ {
+ return settings->custom_deflate(out, outsize, in, insize, settings);
+ }
+ else
+ {
+ return lodepng_deflate(out, outsize, in, insize, settings);
+ }
+}
+
+#endif /*LODEPNG_COMPILE_DECODER*/
+
+/* ////////////////////////////////////////////////////////////////////////// */
+/* / Adler32 */
+/* ////////////////////////////////////////////////////////////////////////// */
+
+static unsigned update_adler32(unsigned adler, const unsigned char* data, unsigned len)
+{
+ unsigned s1 = adler & 0xffff;
+ unsigned s2 = (adler >> 16) & 0xffff;
+
+ while(len > 0)
+ {
+ /*at least 5550 sums can be done before the sums overflow, saving a lot of module divisions*/
+ unsigned amount = len > 5550 ? 5550 : len;
+ len -= amount;
+ while(amount > 0)
+ {
+ s1 += (*data++);
+ s2 += s1;
+ amount--;
+ }
+ s1 %= 65521;
+ s2 %= 65521;
+ }
+
+ return (s2 << 16) | s1;
+}
+
+/*Return the adler32 of the bytes data[0..len-1]*/
+static unsigned adler32(const unsigned char* data, unsigned len)
+{
+ return update_adler32(1L, data, len);
+}
+
+/* ////////////////////////////////////////////////////////////////////////// */
+/* / Zlib / */
+/* ////////////////////////////////////////////////////////////////////////// */
+
+#ifdef LODEPNG_COMPILE_DECODER
+
+unsigned lodepng_zlib_decompress(unsigned char** out, size_t* outsize, const unsigned char* in,
+ size_t insize, const LodePNGDecompressSettings* settings)
+{
+ unsigned error = 0;
+ unsigned CM, CINFO, FDICT;
+
+ if(insize < 2) return 53; /*error, size of zlib data too small*/
+ /*read information from zlib header*/
+ if((in[0] * 256 + in[1]) % 31 != 0)
+ {
+ /*error: 256 * in[0] + in[1] must be a multiple of 31, the FCHECK value is supposed to be made that way*/
+ return 24;
+ }
+
+ CM = in[0] & 15;
+ CINFO = (in[0] >> 4) & 15;
+ /*FCHECK = in[1] & 31;*/ /*FCHECK is already tested above*/
+ FDICT = (in[1] >> 5) & 1;
+ /*FLEVEL = (in[1] >> 6) & 3;*/ /*FLEVEL is not used here*/
+
+ if(CM != 8 || CINFO > 7)
+ {
+ /*error: only compression method 8: inflate with sliding window of 32k is supported by the PNG spec*/
+ return 25;
+ }
+ if(FDICT != 0)
+ {
+ /*error: the specification of PNG says about the zlib stream:
+ "The additional flags shall not specify a preset dictionary."*/
+ return 26;
+ }
+
+ error = inflate(out, outsize, in + 2, insize - 2, settings);
+ if(error) return error;
+
+ if(!settings->ignore_adler32)
+ {
+ unsigned ADLER32 = lodepng_read32bitInt(&in[insize - 4]);
+ unsigned checksum = adler32(*out, (unsigned)(*outsize));
+ if(checksum != ADLER32) return 58; /*error, adler checksum not correct, data must be corrupted*/
+ }
+
+ return 0; /*no error*/
+}
+
+static unsigned zlib_decompress(unsigned char** out, size_t* outsize, const unsigned char* in,
+ size_t insize, const LodePNGDecompressSettings* settings)
+{
+ if(settings->custom_zlib)
+ {
+ return settings->custom_zlib(out, outsize, in, insize, settings);
+ }
+ else
+ {
+ return lodepng_zlib_decompress(out, outsize, in, insize, settings);
+ }
+}
+
+#endif /*LODEPNG_COMPILE_DECODER*/
+
+#ifdef LODEPNG_COMPILE_ENCODER
+
+unsigned lodepng_zlib_compress(unsigned char** out, size_t* outsize, const unsigned char* in,
+ size_t insize, const LodePNGCompressSettings* settings)
+{
+ /*initially, *out must be NULL and outsize 0, if you just give some random *out
+ that's pointing to a non allocated buffer, this'll crash*/
+ ucvector outv;
+ size_t i;
+ unsigned error;
+ unsigned char* deflatedata = 0;
+ size_t deflatesize = 0;
+
+ unsigned ADLER32;
+ /*zlib data: 1 byte CMF (CM+CINFO), 1 byte FLG, deflate data, 4 byte ADLER32 checksum of the Decompressed data*/
+ unsigned CMF = 120; /*0b01111000: CM 8, CINFO 7. With CINFO 7, any window size up to 32768 can be used.*/
+ unsigned FLEVEL = 0;
+ unsigned FDICT = 0;
+ unsigned CMFFLG = 256 * CMF + FDICT * 32 + FLEVEL * 64;
+ unsigned FCHECK = 31 - CMFFLG % 31;
+ CMFFLG += FCHECK;
+
+ /*ucvector-controlled version of the output buffer, for dynamic array*/
+ ucvector_init_buffer(&outv, *out, *outsize);
+
+ ucvector_push_back(&outv, (unsigned char)(CMFFLG / 256));
+ ucvector_push_back(&outv, (unsigned char)(CMFFLG % 256));
+
+ error = deflate(&deflatedata, &deflatesize, in, insize, settings);
+
+ if(!error)
+ {
+ ADLER32 = adler32(in, (unsigned)insize);
+ for(i = 0; i < deflatesize; i++) ucvector_push_back(&outv, deflatedata[i]);
+ lodepng_free(deflatedata);
+ lodepng_add32bitInt(&outv, ADLER32);
+ }
+
+ *out = outv.data;
+ *outsize = outv.size;
+
+ return error;
+}
+
+/* compress using the default or custom zlib function */
+static unsigned zlib_compress(unsigned char** out, size_t* outsize, const unsigned char* in,
+ size_t insize, const LodePNGCompressSettings* settings)
+{
+ if(settings->custom_zlib)
+ {
+ return settings->custom_zlib(out, outsize, in, insize, settings);
+ }
+ else
+ {
+ return lodepng_zlib_compress(out, outsize, in, insize, settings);
+ }
+}
+
+#endif /*LODEPNG_COMPILE_ENCODER*/
+
+#else /*no LODEPNG_COMPILE_ZLIB*/
+
+#ifdef LODEPNG_COMPILE_DECODER
+static unsigned zlib_decompress(unsigned char** out, size_t* outsize, const unsigned char* in,
+ size_t insize, const LodePNGDecompressSettings* settings)
+{
+ if (!settings->custom_zlib) return 87; /*no custom zlib function provided */
+ return settings->custom_zlib(out, outsize, in, insize, settings);
+}
+#endif /*LODEPNG_COMPILE_DECODER*/
+#ifdef LODEPNG_COMPILE_ENCODER
+static unsigned zlib_compress(unsigned char** out, size_t* outsize, const unsigned char* in,
+ size_t insize, const LodePNGCompressSettings* settings)
+{
+ if (!settings->custom_zlib) return 87; /*no custom zlib function provided */
+ return settings->custom_zlib(out, outsize, in, insize, settings);
+}
+#endif /*LODEPNG_COMPILE_ENCODER*/
+
+#endif /*LODEPNG_COMPILE_ZLIB*/
+
+/* ////////////////////////////////////////////////////////////////////////// */
+
+#ifdef LODEPNG_COMPILE_ENCODER
+
+/*this is a good tradeoff between speed and compression ratio*/
+#define DEFAULT_WINDOWSIZE 2048
+
+void lodepng_compress_settings_init(LodePNGCompressSettings* settings)
+{
+ /*compress with dynamic huffman tree (not in the mathematical sense, just not the predefined one)*/
+ settings->btype = 2;
+ settings->use_lz77 = 1;
+ settings->windowsize = DEFAULT_WINDOWSIZE;
+ settings->minmatch = 3;
+ settings->nicematch = 128;
+ settings->lazymatching = 1;
+
+ settings->custom_zlib = 0;
+ settings->custom_deflate = 0;
+ settings->custom_context = 0;
+}
+
+const LodePNGCompressSettings lodepng_default_compress_settings = {2, 1, DEFAULT_WINDOWSIZE, 3, 128, 1, 0, 0, 0};
+
+
+#endif /*LODEPNG_COMPILE_ENCODER*/
+
+#ifdef LODEPNG_COMPILE_DECODER
+
+void lodepng_decompress_settings_init(LodePNGDecompressSettings* settings)
+{
+ settings->ignore_adler32 = 0;
+
+ settings->custom_zlib = 0;
+ settings->custom_inflate = 0;
+ settings->custom_context = 0;
+}
+
+const LodePNGDecompressSettings lodepng_default_decompress_settings = {0, 0, 0, 0};
+
+#endif /*LODEPNG_COMPILE_DECODER*/
+
+/* ////////////////////////////////////////////////////////////////////////// */
+/* ////////////////////////////////////////////////////////////////////////// */
+/* // End of Zlib related code. Begin of PNG related code. // */
+/* ////////////////////////////////////////////////////////////////////////// */
+/* ////////////////////////////////////////////////////////////////////////// */
+
+#ifdef LODEPNG_COMPILE_PNG
+
+/* ////////////////////////////////////////////////////////////////////////// */
+/* / CRC32 / */
+/* ////////////////////////////////////////////////////////////////////////// */
+
+/* CRC polynomial: 0xedb88320 */
+static unsigned lodepng_crc32_table[256] = {
+ 0u, 1996959894u, 3993919788u, 2567524794u, 124634137u, 1886057615u, 3915621685u, 2657392035u,
+ 249268274u, 2044508324u, 3772115230u, 2547177864u, 162941995u, 2125561021u, 3887607047u, 2428444049u,
+ 498536548u, 1789927666u, 4089016648u, 2227061214u, 450548861u, 1843258603u, 4107580753u, 2211677639u,
+ 325883990u, 1684777152u, 4251122042u, 2321926636u, 335633487u, 1661365465u, 4195302755u, 2366115317u,
+ 997073096u, 1281953886u, 3579855332u, 2724688242u, 1006888145u, 1258607687u, 3524101629u, 2768942443u,
+ 901097722u, 1119000684u, 3686517206u, 2898065728u, 853044451u, 1172266101u, 3705015759u, 2882616665u,
+ 651767980u, 1373503546u, 3369554304u, 3218104598u, 565507253u, 1454621731u, 3485111705u, 3099436303u,
+ 671266974u, 1594198024u, 3322730930u, 2970347812u, 795835527u, 1483230225u, 3244367275u, 3060149565u,
+ 1994146192u, 31158534u, 2563907772u, 4023717930u, 1907459465u, 112637215u, 2680153253u, 3904427059u,
+ 2013776290u, 251722036u, 2517215374u, 3775830040u, 2137656763u, 141376813u, 2439277719u, 3865271297u,
+ 1802195444u, 476864866u, 2238001368u, 4066508878u, 1812370925u, 453092731u, 2181625025u, 4111451223u,
+ 1706088902u, 314042704u, 2344532202u, 4240017532u, 1658658271u, 366619977u, 2362670323u, 4224994405u,
+ 1303535960u, 984961486u, 2747007092u, 3569037538u, 1256170817u, 1037604311u, 2765210733u, 3554079995u,
+ 1131014506u, 879679996u, 2909243462u, 3663771856u, 1141124467u, 855842277u, 2852801631u, 3708648649u,
+ 1342533948u, 654459306u, 3188396048u, 3373015174u, 1466479909u, 544179635u, 3110523913u, 3462522015u,
+ 1591671054u, 702138776u, 2966460450u, 3352799412u, 1504918807u, 783551873u, 3082640443u, 3233442989u,
+ 3988292384u, 2596254646u, 62317068u, 1957810842u, 3939845945u, 2647816111u, 81470997u, 1943803523u,
+ 3814918930u, 2489596804u, 225274430u, 2053790376u, 3826175755u, 2466906013u, 167816743u, 2097651377u,
+ 4027552580u, 2265490386u, 503444072u, 1762050814u, 4150417245u, 2154129355u, 426522225u, 1852507879u,
+ 4275313526u, 2312317920u, 282753626u, 1742555852u, 4189708143u, 2394877945u, 397917763u, 1622183637u,
+ 3604390888u, 2714866558u, 953729732u, 1340076626u, 3518719985u, 2797360999u, 1068828381u, 1219638859u,
+ 3624741850u, 2936675148u, 906185462u, 1090812512u, 3747672003u, 2825379669u, 829329135u, 1181335161u,
+ 3412177804u, 3160834842u, 628085408u, 1382605366u, 3423369109u, 3138078467u, 570562233u, 1426400815u,
+ 3317316542u, 2998733608u, 733239954u, 1555261956u, 3268935591u, 3050360625u, 752459403u, 1541320221u,
+ 2607071920u, 3965973030u, 1969922972u, 40735498u, 2617837225u, 3943577151u, 1913087877u, 83908371u,
+ 2512341634u, 3803740692u, 2075208622u, 213261112u, 2463272603u, 3855990285u, 2094854071u, 198958881u,
+ 2262029012u, 4057260610u, 1759359992u, 534414190u, 2176718541u, 4139329115u, 1873836001u, 414664567u,
+ 2282248934u, 4279200368u, 1711684554u, 285281116u, 2405801727u, 4167216745u, 1634467795u, 376229701u,
+ 2685067896u, 3608007406u, 1308918612u, 956543938u, 2808555105u, 3495958263u, 1231636301u, 1047427035u,
+ 2932959818u, 3654703836u, 1088359270u, 936918000u, 2847714899u, 3736837829u, 1202900863u, 817233897u,
+ 3183342108u, 3401237130u, 1404277552u, 615818150u, 3134207493u, 3453421203u, 1423857449u, 601450431u,
+ 3009837614u, 3294710456u, 1567103746u, 711928724u, 3020668471u, 3272380065u, 1510334235u, 755167117u
+};
+
+/*Return the CRC of the bytes buf[0..len-1].*/
+unsigned lodepng_crc32(const unsigned char* buf, size_t len)
+{
+ unsigned c = 0xffffffffL;
+ size_t n;
+
+ for(n = 0; n < len; n++)
+ {
+ c = lodepng_crc32_table[(c ^ buf[n]) & 0xff] ^ (c >> 8);
+ }
+ return c ^ 0xffffffffL;
+}
+
+/* ////////////////////////////////////////////////////////////////////////// */
+/* / Reading and writing single bits and bytes from/to stream for LodePNG / */
+/* ////////////////////////////////////////////////////////////////////////// */
+
+static unsigned char readBitFromReversedStream(size_t* bitpointer, const unsigned char* bitstream)
+{
+ unsigned char result = (unsigned char)((bitstream[(*bitpointer) >> 3] >> (7 - ((*bitpointer) & 0x7))) & 1);
+ (*bitpointer)++;
+ return result;
+}
+
+static unsigned readBitsFromReversedStream(size_t* bitpointer, const unsigned char* bitstream, size_t nbits)
+{
+ unsigned result = 0;
+ size_t i;
+ for(i = nbits - 1; i < nbits; i--)
+ {
+ result += (unsigned)readBitFromReversedStream(bitpointer, bitstream) << i;
+ }
+ return result;
+}
+
+#ifdef LODEPNG_COMPILE_DECODER
+static void setBitOfReversedStream0(size_t* bitpointer, unsigned char* bitstream, unsigned char bit)
+{
+ /*the current bit in bitstream must be 0 for this to work*/
+ if(bit)
+ {
+ /*earlier bit of huffman code is in a lesser significant bit of an earlier byte*/
+ bitstream[(*bitpointer) >> 3] |= (bit << (7 - ((*bitpointer) & 0x7)));
+ }
+ (*bitpointer)++;
+}
+#endif /*LODEPNG_COMPILE_DECODER*/
+
+static void setBitOfReversedStream(size_t* bitpointer, unsigned char* bitstream, unsigned char bit)
+{
+ /*the current bit in bitstream may be 0 or 1 for this to work*/
+ if(bit == 0) bitstream[(*bitpointer) >> 3] &= (unsigned char)(~(1 << (7 - ((*bitpointer) & 0x7))));
+ else bitstream[(*bitpointer) >> 3] |= (1 << (7 - ((*bitpointer) & 0x7)));
+ (*bitpointer)++;
+}
+
+/* ////////////////////////////////////////////////////////////////////////// */
+/* / PNG chunks / */
+/* ////////////////////////////////////////////////////////////////////////// */
+
+unsigned lodepng_chunk_length(const unsigned char* chunk)
+{
+ return lodepng_read32bitInt(&chunk[0]);
+}
+
+void lodepng_chunk_type(char type[5], const unsigned char* chunk)
+{
+ unsigned i;
+ for(i = 0; i < 4; i++) type[i] = chunk[4 + i];
+ type[4] = 0; /*null termination char*/
+}
+
+unsigned char lodepng_chunk_type_equals(const unsigned char* chunk, const char* type)
+{
+ if(strlen(type) != 4) return 0;
+ return (chunk[4] == type[0] && chunk[5] == type[1] && chunk[6] == type[2] && chunk[7] == type[3]);
+}
+
+unsigned char lodepng_chunk_ancillary(const unsigned char* chunk)
+{
+ return((chunk[4] & 32) != 0);
+}
+
+unsigned char lodepng_chunk_private(const unsigned char* chunk)
+{
+ return((chunk[6] & 32) != 0);
+}
+
+unsigned char lodepng_chunk_safetocopy(const unsigned char* chunk)
+{
+ return((chunk[7] & 32) != 0);
+}
+
+unsigned char* lodepng_chunk_data(unsigned char* chunk)
+{
+ return &chunk[8];
+}
+
+const unsigned char* lodepng_chunk_data_const(const unsigned char* chunk)
+{
+ return &chunk[8];
+}
+
+unsigned lodepng_chunk_check_crc(const unsigned char* chunk)
+{
+ unsigned length = lodepng_chunk_length(chunk);
+ unsigned CRC = lodepng_read32bitInt(&chunk[length + 8]);
+ /*the CRC is taken of the data and the 4 chunk type letters, not the length*/
+ unsigned checksum = lodepng_crc32(&chunk[4], length + 4);
+ if(CRC != checksum) return 1;
+ else return 0;
+}
+
+void lodepng_chunk_generate_crc(unsigned char* chunk)
+{
+ unsigned length = lodepng_chunk_length(chunk);
+ unsigned CRC = lodepng_crc32(&chunk[4], length + 4);
+ lodepng_set32bitInt(chunk + 8 + length, CRC);
+}
+
+unsigned char* lodepng_chunk_next(unsigned char* chunk)
+{
+ unsigned total_chunk_length = lodepng_chunk_length(chunk) + 12;
+ return &chunk[total_chunk_length];
+}
+
+const unsigned char* lodepng_chunk_next_const(const unsigned char* chunk)
+{
+ unsigned total_chunk_length = lodepng_chunk_length(chunk) + 12;
+ return &chunk[total_chunk_length];
+}
+
+unsigned lodepng_chunk_append(unsigned char** out, size_t* outlength, const unsigned char* chunk)
+{
+ unsigned i;
+ unsigned total_chunk_length = lodepng_chunk_length(chunk) + 12;
+ unsigned char *chunk_start, *new_buffer;
+ size_t new_length = (*outlength) + total_chunk_length;
+ if(new_length < total_chunk_length || new_length < (*outlength)) return 77; /*integer overflow happened*/
+
+ new_buffer = (unsigned char*)lodepng_realloc(*out, new_length);
+ if(!new_buffer) return 83; /*alloc fail*/
+ (*out) = new_buffer;
+ (*outlength) = new_length;
+ chunk_start = &(*out)[new_length - total_chunk_length];
+
+ for(i = 0; i < total_chunk_length; i++) chunk_start[i] = chunk[i];
+
+ return 0;
+}
+
+unsigned lodepng_chunk_create(unsigned char** out, size_t* outlength, unsigned length,
+ const char* type, const unsigned char* data)
+{
+ unsigned i;
+ unsigned char *chunk, *new_buffer;
+ size_t new_length = (*outlength) + length + 12;
+ if(new_length < length + 12 || new_length < (*outlength)) return 77; /*integer overflow happened*/
+ new_buffer = (unsigned char*)lodepng_realloc(*out, new_length);
+ if(!new_buffer) return 83; /*alloc fail*/
+ (*out) = new_buffer;
+ (*outlength) = new_length;
+ chunk = &(*out)[(*outlength) - length - 12];
+
+ /*1: length*/
+ lodepng_set32bitInt(chunk, (unsigned)length);
+
+ /*2: chunk name (4 letters)*/
+ chunk[4] = type[0];
+ chunk[5] = type[1];
+ chunk[6] = type[2];
+ chunk[7] = type[3];
+
+ /*3: the data*/
+ for(i = 0; i < length; i++) chunk[8 + i] = data[i];
+
+ /*4: CRC (of the chunkname characters and the data)*/
+ lodepng_chunk_generate_crc(chunk);
+
+ return 0;
+}
+
+/* ////////////////////////////////////////////////////////////////////////// */
+/* / Color types and such / */
+/* ////////////////////////////////////////////////////////////////////////// */
+
+/*return type is a LodePNG error code*/
+static unsigned checkColorValidity(LodePNGColorType colortype, unsigned bd) /*bd = bitdepth*/
+{
+ switch(colortype)
+ {
+ case 0: if(!(bd == 1 || bd == 2 || bd == 4 || bd == 8 || bd == 16)) return 37; break; /*grey*/
+ case 2: if(!( bd == 8 || bd == 16)) return 37; break; /*RGB*/
+ case 3: if(!(bd == 1 || bd == 2 || bd == 4 || bd == 8 )) return 37; break; /*palette*/
+ case 4: if(!( bd == 8 || bd == 16)) return 37; break; /*grey + alpha*/
+ case 6: if(!( bd == 8 || bd == 16)) return 37; break; /*RGBA*/
+ default: return 31;
+ }
+ return 0; /*allowed color type / bits combination*/
+}
+
+static unsigned getNumColorChannels(LodePNGColorType colortype)
+{
+ switch(colortype)
+ {
+ case 0: return 1; /*grey*/
+ case 2: return 3; /*RGB*/
+ case 3: return 1; /*palette*/
+ case 4: return 2; /*grey + alpha*/
+ case 6: return 4; /*RGBA*/
+ }
+ return 0; /*unexisting color type*/
+}
+
+static unsigned lodepng_get_bpp_lct(LodePNGColorType colortype, unsigned bitdepth)
+{
+ /*bits per pixel is amount of channels * bits per channel*/
+ return getNumColorChannels(colortype) * bitdepth;
+}
+
+/* ////////////////////////////////////////////////////////////////////////// */
+
+void lodepng_color_mode_init(LodePNGColorMode* info)
+{
+ info->key_defined = 0;
+ info->key_r = info->key_g = info->key_b = 0;
+ info->colortype = LCT_RGBA;
+ info->bitdepth = 8;
+ info->palette = 0;
+ info->palettesize = 0;
+}
+
+void lodepng_color_mode_cleanup(LodePNGColorMode* info)
+{
+ lodepng_palette_clear(info);
+}
+
+unsigned lodepng_color_mode_copy(LodePNGColorMode* dest, const LodePNGColorMode* source)
+{
+ size_t i;
+ lodepng_color_mode_cleanup(dest);
+ *dest = *source;
+ if(source->palette)
+ {
+ dest->palette = (unsigned char*)lodepng_malloc(1024);
+ if(!dest->palette && source->palettesize) return 83; /*alloc fail*/
+ for(i = 0; i < source->palettesize * 4; i++) dest->palette[i] = source->palette[i];
+ }
+ return 0;
+}
+
+static int lodepng_color_mode_equal(const LodePNGColorMode* a, const LodePNGColorMode* b)
+{
+ size_t i;
+ if(a->colortype != b->colortype) return 0;
+ if(a->bitdepth != b->bitdepth) return 0;
+ if(a->key_defined != b->key_defined) return 0;
+ if(a->key_defined)
+ {
+ if(a->key_r != b->key_r) return 0;
+ if(a->key_g != b->key_g) return 0;
+ if(a->key_b != b->key_b) return 0;
+ }
+ if(a->palettesize != b->palettesize) return 0;
+ for(i = 0; i < a->palettesize * 4; i++)
+ {
+ if(a->palette[i] != b->palette[i]) return 0;
+ }
+ return 1;
+}
+
+void lodepng_palette_clear(LodePNGColorMode* info)
+{
+ if(info->palette) lodepng_free(info->palette);
+ info->palette = 0;
+ info->palettesize = 0;
+}
+
+unsigned lodepng_palette_add(LodePNGColorMode* info,
+ unsigned char r, unsigned char g, unsigned char b, unsigned char a)
+{
+ unsigned char* data;
+ /*the same resize technique as C++ std::vectors is used, and here it's made so that for a palette with
+ the max of 256 colors, it'll have the exact alloc size*/
+ if(!info->palette) /*allocate palette if empty*/
+ {
+ /*room for 256 colors with 4 bytes each*/
+ data = (unsigned char*)lodepng_realloc(info->palette, 1024);
+ if(!data) return 83; /*alloc fail*/
+ else info->palette = data;
+ }
+ info->palette[4 * info->palettesize + 0] = r;
+ info->palette[4 * info->palettesize + 1] = g;
+ info->palette[4 * info->palettesize + 2] = b;
+ info->palette[4 * info->palettesize + 3] = a;
+ info->palettesize++;
+ return 0;
+}
+
+unsigned lodepng_get_bpp(const LodePNGColorMode* info)
+{
+ /*calculate bits per pixel out of colortype and bitdepth*/
+ return lodepng_get_bpp_lct(info->colortype, info->bitdepth);
+}
+
+unsigned lodepng_get_channels(const LodePNGColorMode* info)
+{
+ return getNumColorChannels(info->colortype);
+}
+
+unsigned lodepng_is_greyscale_type(const LodePNGColorMode* info)
+{
+ return info->colortype == LCT_GREY || info->colortype == LCT_GREY_ALPHA;
+}
+
+unsigned lodepng_is_alpha_type(const LodePNGColorMode* info)
+{
+ return (info->colortype & 4) != 0; /*4 or 6*/
+}
+
+unsigned lodepng_is_palette_type(const LodePNGColorMode* info)
+{
+ return info->colortype == LCT_PALETTE;
+}
+
+unsigned lodepng_has_palette_alpha(const LodePNGColorMode* info)
+{
+ size_t i;
+ for(i = 0; i < info->palettesize; i++)
+ {
+ if(info->palette[i * 4 + 3] < 255) return 1;
+ }
+ return 0;
+}
+
+unsigned lodepng_can_have_alpha(const LodePNGColorMode* info)
+{
+ return info->key_defined
+ || lodepng_is_alpha_type(info)
+ || lodepng_has_palette_alpha(info);
+}
+
+size_t lodepng_get_raw_size(unsigned w, unsigned h, const LodePNGColorMode* color)
+{
+ return (w * h * lodepng_get_bpp(color) + 7) / 8;
+}
+
+size_t lodepng_get_raw_size_lct(unsigned w, unsigned h, LodePNGColorType colortype, unsigned bitdepth)
+{
+ return (w * h * lodepng_get_bpp_lct(colortype, bitdepth) + 7) / 8;
+}
+
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+
+static void LodePNGUnknownChunks_init(LodePNGInfo* info)
+{
+ unsigned i;
+ for(i = 0; i < 3; i++) info->unknown_chunks_data[i] = 0;
+ for(i = 0; i < 3; i++) info->unknown_chunks_size[i] = 0;
+}
+
+static void LodePNGUnknownChunks_cleanup(LodePNGInfo* info)
+{
+ unsigned i;
+ for(i = 0; i < 3; i++) lodepng_free(info->unknown_chunks_data[i]);
+}
+
+static unsigned LodePNGUnknownChunks_copy(LodePNGInfo* dest, const LodePNGInfo* src)
+{
+ unsigned i;
+
+ LodePNGUnknownChunks_cleanup(dest);
+
+ for(i = 0; i < 3; i++)
+ {
+ size_t j;
+ dest->unknown_chunks_size[i] = src->unknown_chunks_size[i];
+ dest->unknown_chunks_data[i] = (unsigned char*)lodepng_malloc(src->unknown_chunks_size[i]);
+ if(!dest->unknown_chunks_data[i] && dest->unknown_chunks_size[i]) return 83; /*alloc fail*/
+ for(j = 0; j < src->unknown_chunks_size[i]; j++)
+ {
+ dest->unknown_chunks_data[i][j] = src->unknown_chunks_data[i][j];
+ }
+ }
+
+ return 0;
+}
+
+/******************************************************************************/
+
+static void LodePNGText_init(LodePNGInfo* info)
+{
+ info->text_num = 0;
+ info->text_keys = NULL;
+ info->text_strings = NULL;
+}
+
+static void LodePNGText_cleanup(LodePNGInfo* info)
+{
+ size_t i;
+ for(i = 0; i < info->text_num; i++)
+ {
+ string_cleanup(&info->text_keys[i]);
+ string_cleanup(&info->text_strings[i]);
+ }
+ lodepng_free(info->text_keys);
+ lodepng_free(info->text_strings);
+}
+
+static unsigned LodePNGText_copy(LodePNGInfo* dest, const LodePNGInfo* source)
+{
+ size_t i = 0;
+ dest->text_keys = 0;
+ dest->text_strings = 0;
+ dest->text_num = 0;
+ for(i = 0; i < source->text_num; i++)
+ {
+ CERROR_TRY_RETURN(lodepng_add_text(dest, source->text_keys[i], source->text_strings[i]));
+ }
+ return 0;
+}
+
+void lodepng_clear_text(LodePNGInfo* info)
+{
+ LodePNGText_cleanup(info);
+}
+
+unsigned lodepng_add_text(LodePNGInfo* info, const char* key, const char* str)
+{
+ char** new_keys = (char**)(lodepng_realloc(info->text_keys, sizeof(char*) * (info->text_num + 1)));
+ char** new_strings = (char**)(lodepng_realloc(info->text_strings, sizeof(char*) * (info->text_num + 1)));
+ if(!new_keys || !new_strings)
+ {
+ lodepng_free(new_keys);
+ lodepng_free(new_strings);
+ return 83; /*alloc fail*/
+ }
+
+ info->text_num++;
+ info->text_keys = new_keys;
+ info->text_strings = new_strings;
+
+ string_init(&info->text_keys[info->text_num - 1]);
+ string_set(&info->text_keys[info->text_num - 1], key);
+
+ string_init(&info->text_strings[info->text_num - 1]);
+ string_set(&info->text_strings[info->text_num - 1], str);
+
+ return 0;
+}
+
+/******************************************************************************/
+
+static void LodePNGIText_init(LodePNGInfo* info)
+{
+ info->itext_num = 0;
+ info->itext_keys = NULL;
+ info->itext_langtags = NULL;
+ info->itext_transkeys = NULL;
+ info->itext_strings = NULL;
+}
+
+static void LodePNGIText_cleanup(LodePNGInfo* info)
+{
+ size_t i;
+ for(i = 0; i < info->itext_num; i++)
+ {
+ string_cleanup(&info->itext_keys[i]);
+ string_cleanup(&info->itext_langtags[i]);
+ string_cleanup(&info->itext_transkeys[i]);
+ string_cleanup(&info->itext_strings[i]);
+ }
+ lodepng_free(info->itext_keys);
+ lodepng_free(info->itext_langtags);
+ lodepng_free(info->itext_transkeys);
+ lodepng_free(info->itext_strings);
+}
+
+static unsigned LodePNGIText_copy(LodePNGInfo* dest, const LodePNGInfo* source)
+{
+ size_t i = 0;
+ dest->itext_keys = 0;
+ dest->itext_langtags = 0;
+ dest->itext_transkeys = 0;
+ dest->itext_strings = 0;
+ dest->itext_num = 0;
+ for(i = 0; i < source->itext_num; i++)
+ {
+ CERROR_TRY_RETURN(lodepng_add_itext(dest, source->itext_keys[i], source->itext_langtags[i],
+ source->itext_transkeys[i], source->itext_strings[i]));
+ }
+ return 0;
+}
+
+void lodepng_clear_itext(LodePNGInfo* info)
+{
+ LodePNGIText_cleanup(info);
+}
+
+unsigned lodepng_add_itext(LodePNGInfo* info, const char* key, const char* langtag,
+ const char* transkey, const char* str)
+{
+ char** new_keys = (char**)(lodepng_realloc(info->itext_keys, sizeof(char*) * (info->itext_num + 1)));
+ char** new_langtags = (char**)(lodepng_realloc(info->itext_langtags, sizeof(char*) * (info->itext_num + 1)));
+ char** new_transkeys = (char**)(lodepng_realloc(info->itext_transkeys, sizeof(char*) * (info->itext_num + 1)));
+ char** new_strings = (char**)(lodepng_realloc(info->itext_strings, sizeof(char*) * (info->itext_num + 1)));
+ if(!new_keys || !new_langtags || !new_transkeys || !new_strings)
+ {
+ lodepng_free(new_keys);
+ lodepng_free(new_langtags);
+ lodepng_free(new_transkeys);
+ lodepng_free(new_strings);
+ return 83; /*alloc fail*/
+ }
+
+ info->itext_num++;
+ info->itext_keys = new_keys;
+ info->itext_langtags = new_langtags;
+ info->itext_transkeys = new_transkeys;
+ info->itext_strings = new_strings;
+
+ string_init(&info->itext_keys[info->itext_num - 1]);
+ string_set(&info->itext_keys[info->itext_num - 1], key);
+
+ string_init(&info->itext_langtags[info->itext_num - 1]);
+ string_set(&info->itext_langtags[info->itext_num - 1], langtag);
+
+ string_init(&info->itext_transkeys[info->itext_num - 1]);
+ string_set(&info->itext_transkeys[info->itext_num - 1], transkey);
+
+ string_init(&info->itext_strings[info->itext_num - 1]);
+ string_set(&info->itext_strings[info->itext_num - 1], str);
+
+ return 0;
+}
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+
+void lodepng_info_init(LodePNGInfo* info)
+{
+ lodepng_color_mode_init(&info->color);
+ info->interlace_method = 0;
+ info->compression_method = 0;
+ info->filter_method = 0;
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ info->background_defined = 0;
+ info->background_r = info->background_g = info->background_b = 0;
+
+ LodePNGText_init(info);
+ LodePNGIText_init(info);
+
+ info->time_defined = 0;
+ info->phys_defined = 0;
+
+ LodePNGUnknownChunks_init(info);
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+}
+
+void lodepng_info_cleanup(LodePNGInfo* info)
+{
+ lodepng_color_mode_cleanup(&info->color);
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ LodePNGText_cleanup(info);
+ LodePNGIText_cleanup(info);
+
+ LodePNGUnknownChunks_cleanup(info);
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+}
+
+unsigned lodepng_info_copy(LodePNGInfo* dest, const LodePNGInfo* source)
+{
+ lodepng_info_cleanup(dest);
+ *dest = *source;
+ lodepng_color_mode_init(&dest->color);
+ CERROR_TRY_RETURN(lodepng_color_mode_copy(&dest->color, &source->color));
+
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ CERROR_TRY_RETURN(LodePNGText_copy(dest, source));
+ CERROR_TRY_RETURN(LodePNGIText_copy(dest, source));
+
+ LodePNGUnknownChunks_init(dest);
+ CERROR_TRY_RETURN(LodePNGUnknownChunks_copy(dest, source));
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+ return 0;
+}
+
+void lodepng_info_swap(LodePNGInfo* a, LodePNGInfo* b)
+{
+ LodePNGInfo temp = *a;
+ *a = *b;
+ *b = temp;
+}
+
+/* ////////////////////////////////////////////////////////////////////////// */
+
+/*index: bitgroup index, bits: bitgroup size(1, 2 or 4), in: bitgroup value, out: octet array to add bits to*/
+static void addColorBits(unsigned char* out, size_t index, unsigned bits, unsigned in)
+{
+ unsigned m = bits == 1 ? 7 : bits == 2 ? 3 : 1; /*8 / bits - 1*/
+ /*p = the partial index in the byte, e.g. with 4 palettebits it is 0 for first half or 1 for second half*/
+ unsigned p = index & m;
+ in &= (1 << bits) - 1; /*filter out any other bits of the input value*/
+ in = in << (bits * (m - p));
+ if(p == 0) out[index * bits / 8] = in;
+ else out[index * bits / 8] |= in;
+}
+
+typedef struct ColorTree ColorTree;
+
+/*
+One node of a color tree
+This is the data structure used to count the number of unique colors and to get a palette
+index for a color. It's like an octree, but because the alpha channel is used too, each
+node has 16 instead of 8 children.
+*/
+struct ColorTree
+{
+ ColorTree* children[16]; /*up to 16 pointers to ColorTree of next level*/
+ int index; /*the payload. Only has a meaningful value if this is in the last level*/
+};
+
+static void color_tree_init(ColorTree* tree)
+{
+ int i;
+ for(i = 0; i < 16; i++) tree->children[i] = 0;
+ tree->index = -1;
+}
+
+static void color_tree_cleanup(ColorTree* tree)
+{
+ int i;
+ for(i = 0; i < 16; i++)
+ {
+ if(tree->children[i])
+ {
+ color_tree_cleanup(tree->children[i]);
+ lodepng_free(tree->children[i]);
+ }
+ }
+}
+
+/*returns -1 if color not present, its index otherwise*/
+static int color_tree_get(ColorTree* tree, unsigned char r, unsigned char g, unsigned char b, unsigned char a)
+{
+ int bit = 0;
+ for(bit = 0; bit < 8; bit++)
+ {
+ int i = 8 * ((r >> bit) & 1) + 4 * ((g >> bit) & 1) + 2 * ((b >> bit) & 1) + 1 * ((a >> bit) & 1);
+ if(!tree->children[i]) return -1;
+ else tree = tree->children[i];
+ }
+ return tree ? tree->index : -1;
+}
+
+#ifdef LODEPNG_COMPILE_ENCODER
+static int color_tree_has(ColorTree* tree, unsigned char r, unsigned char g, unsigned char b, unsigned char a)
+{
+ return color_tree_get(tree, r, g, b, a) >= 0;
+}
+#endif /*LODEPNG_COMPILE_ENCODER*/
+
+/*color is not allowed to already exist.
+Index should be >= 0 (it's signed to be compatible with using -1 for "doesn't exist")*/
+static void color_tree_add(ColorTree* tree,
+ unsigned char r, unsigned char g, unsigned char b, unsigned char a, int index)
+{
+ int bit;
+ for(bit = 0; bit < 8; bit++)
+ {
+ int i = 8 * ((r >> bit) & 1) + 4 * ((g >> bit) & 1) + 2 * ((b >> bit) & 1) + 1 * ((a >> bit) & 1);
+ if(!tree->children[i])
+ {
+ tree->children[i] = (ColorTree*)lodepng_malloc(sizeof(ColorTree));
+ color_tree_init(tree->children[i]);
+ }
+ tree = tree->children[i];
+ }
+ tree->index = index;
+}
+
+/*put a pixel, given its RGBA color, into image of any color type*/
+static unsigned rgba8ToPixel(unsigned char* out, size_t i,
+ const LodePNGColorMode* mode, ColorTree* tree /*for palette*/,
+ unsigned char r, unsigned char g, unsigned char b, unsigned char a)
+{
+ if(mode->colortype == LCT_GREY)
+ {
+ unsigned char grey = r; /*((unsigned short)r + g + b) / 3*/;
+ if(mode->bitdepth == 8) out[i] = grey;
+ else if(mode->bitdepth == 16) out[i * 2 + 0] = out[i * 2 + 1] = grey;
+ else
+ {
+ /*take the most significant bits of grey*/
+ grey = (grey >> (8 - mode->bitdepth)) & ((1 << mode->bitdepth) - 1);
+ addColorBits(out, i, mode->bitdepth, grey);
+ }
+ }
+ else if(mode->colortype == LCT_RGB)
+ {
+ if(mode->bitdepth == 8)
+ {
+ out[i * 3 + 0] = r;
+ out[i * 3 + 1] = g;
+ out[i * 3 + 2] = b;
+ }
+ else
+ {
+ out[i * 6 + 0] = out[i * 6 + 1] = r;
+ out[i * 6 + 2] = out[i * 6 + 3] = g;
+ out[i * 6 + 4] = out[i * 6 + 5] = b;
+ }
+ }
+ else if(mode->colortype == LCT_PALETTE)
+ {
+ int index = color_tree_get(tree, r, g, b, a);
+ if(index < 0) return 82; /*color not in palette*/
+ if(mode->bitdepth == 8) out[i] = index;
+ else addColorBits(out, i, mode->bitdepth, index);
+ }
+ else if(mode->colortype == LCT_GREY_ALPHA)
+ {
+ unsigned char grey = r; /*((unsigned short)r + g + b) / 3*/;
+ if(mode->bitdepth == 8)
+ {
+ out[i * 2 + 0] = grey;
+ out[i * 2 + 1] = a;
+ }
+ else if(mode->bitdepth == 16)
+ {
+ out[i * 4 + 0] = out[i * 4 + 1] = grey;
+ out[i * 4 + 2] = out[i * 4 + 3] = a;
+ }
+ }
+ else if(mode->colortype == LCT_RGBA)
+ {
+ if(mode->bitdepth == 8)
+ {
+ out[i * 4 + 0] = r;
+ out[i * 4 + 1] = g;
+ out[i * 4 + 2] = b;
+ out[i * 4 + 3] = a;
+ }
+ else
+ {
+ out[i * 8 + 0] = out[i * 8 + 1] = r;
+ out[i * 8 + 2] = out[i * 8 + 3] = g;
+ out[i * 8 + 4] = out[i * 8 + 5] = b;
+ out[i * 8 + 6] = out[i * 8 + 7] = a;
+ }
+ }
+
+ return 0; /*no error*/
+}
+
+/*put a pixel, given its RGBA16 color, into image of any color 16-bitdepth type*/
+static unsigned rgba16ToPixel(unsigned char* out, size_t i,
+ const LodePNGColorMode* mode,
+ unsigned short r, unsigned short g, unsigned short b, unsigned short a)
+{
+ if(mode->bitdepth != 16) return 85; /*must be 16 for this function*/
+ if(mode->colortype == LCT_GREY)
+ {
+ unsigned short grey = r; /*((unsigned)r + g + b) / 3*/;
+ out[i * 2 + 0] = (grey >> 8) & 255;
+ out[i * 2 + 1] = grey & 255;
+ }
+ else if(mode->colortype == LCT_RGB)
+ {
+ out[i * 6 + 0] = (r >> 8) & 255;
+ out[i * 6 + 1] = r & 255;
+ out[i * 6 + 2] = (g >> 8) & 255;
+ out[i * 6 + 3] = g & 255;
+ out[i * 6 + 4] = (b >> 8) & 255;
+ out[i * 6 + 5] = b & 255;
+ }
+ else if(mode->colortype == LCT_GREY_ALPHA)
+ {
+ unsigned short grey = r; /*((unsigned)r + g + b) / 3*/;
+ out[i * 4 + 0] = (grey >> 8) & 255;
+ out[i * 4 + 1] = grey & 255;
+ out[i * 4 + 2] = (a >> 8) & 255;
+ out[i * 4 + 3] = a & 255;
+ }
+ else if(mode->colortype == LCT_RGBA)
+ {
+ out[i * 8 + 0] = (r >> 8) & 255;
+ out[i * 8 + 1] = r & 255;
+ out[i * 8 + 2] = (g >> 8) & 255;
+ out[i * 8 + 3] = g & 255;
+ out[i * 8 + 4] = (b >> 8) & 255;
+ out[i * 8 + 5] = b & 255;
+ out[i * 8 + 6] = (a >> 8) & 255;
+ out[i * 8 + 7] = a & 255;
+ }
+
+ return 0; /*no error*/
+}
+
+/*Get RGBA8 color of pixel with index i (y * width + x) from the raw image with given color type.*/
+static unsigned getPixelColorRGBA8(unsigned char* r, unsigned char* g,
+ unsigned char* b, unsigned char* a,
+ const unsigned char* in, size_t i,
+ const LodePNGColorMode* mode,
+ unsigned fix_png)
+{
+ if(mode->colortype == LCT_GREY)
+ {
+ if(mode->bitdepth == 8)
+ {
+ *r = *g = *b = in[i];
+ if(mode->key_defined && *r == mode->key_r) *a = 0;
+ else *a = 255;
+ }
+ else if(mode->bitdepth == 16)
+ {
+ *r = *g = *b = in[i * 2 + 0];
+ if(mode->key_defined && 256U * in[i * 2 + 0] + in[i * 2 + 1] == mode->key_r) *a = 0;
+ else *a = 255;
+ }
+ else
+ {
+ unsigned highest = ((1U << mode->bitdepth) - 1U); /*highest possible value for this bit depth*/
+ size_t j = i * mode->bitdepth;
+ unsigned value = readBitsFromReversedStream(&j, in, mode->bitdepth);
+ *r = *g = *b = (value * 255) / highest;
+ if(mode->key_defined && value == mode->key_r) *a = 0;
+ else *a = 255;
+ }
+ }
+ else if(mode->colortype == LCT_RGB)
+ {
+ if(mode->bitdepth == 8)
+ {
+ *r = in[i * 3 + 0]; *g = in[i * 3 + 1]; *b = in[i * 3 + 2];
+ if(mode->key_defined && *r == mode->key_r && *g == mode->key_g && *b == mode->key_b) *a = 0;
+ else *a = 255;
+ }
+ else
+ {
+ *r = in[i * 6 + 0];
+ *g = in[i * 6 + 2];
+ *b = in[i * 6 + 4];
+ if(mode->key_defined && 256U * in[i * 6 + 0] + in[i * 6 + 1] == mode->key_r
+ && 256U * in[i * 6 + 2] + in[i * 6 + 3] == mode->key_g
+ && 256U * in[i * 6 + 4] + in[i * 6 + 5] == mode->key_b) *a = 0;
+ else *a = 255;
+ }
+ }
+ else if(mode->colortype == LCT_PALETTE)
+ {
+ unsigned index;
+ if(mode->bitdepth == 8) index = in[i];
+ else
+ {
+ size_t j = i * mode->bitdepth;
+ index = readBitsFromReversedStream(&j, in, mode->bitdepth);
+ }
+
+ if(index >= mode->palettesize)
+ {
+ /*This is an error according to the PNG spec, but fix_png can ignore it*/
+ if(!fix_png) return (mode->bitdepth == 8 ? 46 : 47); /*index out of palette*/
+ *r = *g = *b = 0;
+ *a = 255;
+ }
+ else
+ {
+ *r = mode->palette[index * 4 + 0];
+ *g = mode->palette[index * 4 + 1];
+ *b = mode->palette[index * 4 + 2];
+ *a = mode->palette[index * 4 + 3];
+ }
+ }
+ else if(mode->colortype == LCT_GREY_ALPHA)
+ {
+ if(mode->bitdepth == 8)
+ {
+ *r = *g = *b = in[i * 2 + 0];
+ *a = in[i * 2 + 1];
+ }
+ else
+ {
+ *r = *g = *b = in[i * 4 + 0];
+ *a = in[i * 4 + 2];
+ }
+ }
+ else if(mode->colortype == LCT_RGBA)
+ {
+ if(mode->bitdepth == 8)
+ {
+ *r = in[i * 4 + 0];
+ *g = in[i * 4 + 1];
+ *b = in[i * 4 + 2];
+ *a = in[i * 4 + 3];
+ }
+ else
+ {
+ *r = in[i * 8 + 0];
+ *g = in[i * 8 + 2];
+ *b = in[i * 8 + 4];
+ *a = in[i * 8 + 6];
+ }
+ }
+
+ return 0; /*no error*/
+}
+
+/*Similar to getPixelColorRGBA8, but with all the for loops inside of the color
+mode test cases, optimized to convert the colors much faster, when converting
+to RGBA or RGB with 8 bit per cannel. buffer must be RGBA or RGB output with
+enough memory, if has_alpha is true the output is RGBA. mode has the color mode
+of the input buffer.*/
+static unsigned getPixelColorsRGBA8(unsigned char* buffer, size_t numpixels,
+ unsigned has_alpha, const unsigned char* in,
+ const LodePNGColorMode* mode,
+ unsigned fix_png)
+{
+ unsigned num_channels = has_alpha ? 4 : 3;
+ size_t i;
+ if(mode->colortype == LCT_GREY)
+ {
+ if(mode->bitdepth == 8)
+ {
+ for(i = 0; i < numpixels; i++, buffer += num_channels)
+ {
+ buffer[0] = buffer[1] = buffer[2] = in[i];
+ if(has_alpha) buffer[3] = mode->key_defined && in[i] == mode->key_r ? 0 : 255;
+ }
+ }
+ else if(mode->bitdepth == 16)
+ {
+ for(i = 0; i < numpixels; i++, buffer += num_channels)
+ {
+ buffer[0] = buffer[1] = buffer[2] = in[i * 2];
+ if(has_alpha) buffer[3] = mode->key_defined && 256U * in[i * 2 + 0] + in[i * 2 + 1] == mode->key_r ? 0 : 255;
+ }
+ }
+ else
+ {
+ unsigned highest = ((1U << mode->bitdepth) - 1U); /*highest possible value for this bit depth*/
+ size_t j = 0;
+ for(i = 0; i < numpixels; i++, buffer += num_channels)
+ {
+ unsigned value = readBitsFromReversedStream(&j, in, mode->bitdepth);
+ buffer[0] = buffer[1] = buffer[2] = (value * 255) / highest;
+ if(has_alpha) buffer[3] = mode->key_defined && value == mode->key_r ? 0 : 255;
+ }
+ }
+ }
+ else if(mode->colortype == LCT_RGB)
+ {
+ if(mode->bitdepth == 8)
+ {
+ for(i = 0; i < numpixels; i++, buffer += num_channels)
+ {
+ buffer[0] = in[i * 3 + 0];
+ buffer[1] = in[i * 3 + 1];
+ buffer[2] = in[i * 3 + 2];
+ if(has_alpha) buffer[3] = mode->key_defined && buffer[0] == mode->key_r
+ && buffer[1]== mode->key_g && buffer[2] == mode->key_b ? 0 : 255;
+ }
+ }
+ else
+ {
+ for(i = 0; i < numpixels; i++, buffer += num_channels)
+ {
+ buffer[0] = in[i * 6 + 0];
+ buffer[1] = in[i * 6 + 2];
+ buffer[2] = in[i * 6 + 4];
+ if(has_alpha) buffer[3] = mode->key_defined
+ && 256U * in[i * 6 + 0] + in[i * 6 + 1] == mode->key_r
+ && 256U * in[i * 6 + 2] + in[i * 6 + 3] == mode->key_g
+ && 256U * in[i * 6 + 4] + in[i * 6 + 5] == mode->key_b ? 0 : 255;
+ }
+ }
+ }
+ else if(mode->colortype == LCT_PALETTE)
+ {
+ unsigned index;
+ size_t j = 0;
+ for(i = 0; i < numpixels; i++, buffer += num_channels)
+ {
+ if(mode->bitdepth == 8) index = in[i];
+ else index = readBitsFromReversedStream(&j, in, mode->bitdepth);
+
+ if(index >= mode->palettesize)
+ {
+ /*This is an error according to the PNG spec, but fix_png can ignore it*/
+ if(!fix_png) return (mode->bitdepth == 8 ? 46 : 47); /*index out of palette*/
+ buffer[0] = buffer[1] = buffer[2] = 0;
+ if(has_alpha) buffer[3] = 255;
+ }
+ else
+ {
+ buffer[0] = mode->palette[index * 4 + 0];
+ buffer[1] = mode->palette[index * 4 + 1];
+ buffer[2] = mode->palette[index * 4 + 2];
+ if(has_alpha) buffer[3] = mode->palette[index * 4 + 3];
+ }
+ }
+ }
+ else if(mode->colortype == LCT_GREY_ALPHA)
+ {
+ if(mode->bitdepth == 8)
+ {
+ for(i = 0; i < numpixels; i++, buffer += num_channels)
+ {
+ buffer[0] = buffer[1] = buffer[2] = in[i * 2 + 0];
+ if(has_alpha) buffer[3] = in[i * 2 + 1];
+ }
+ }
+ else
+ {
+ for(i = 0; i < numpixels; i++, buffer += num_channels)
+ {
+ buffer[0] = buffer[1] = buffer[2] = in[i * 4 + 0];
+ if(has_alpha) buffer[3] = in[i * 4 + 2];
+ }
+ }
+ }
+ else if(mode->colortype == LCT_RGBA)
+ {
+ if(mode->bitdepth == 8)
+ {
+ for(i = 0; i < numpixels; i++, buffer += num_channels)
+ {
+ buffer[0] = in[i * 4 + 0];
+ buffer[1] = in[i * 4 + 1];
+ buffer[2] = in[i * 4 + 2];
+ if(has_alpha) buffer[3] = in[i * 4 + 3];
+ }
+ }
+ else
+ {
+ for(i = 0; i < numpixels; i++, buffer += num_channels)
+ {
+ buffer[0] = in[i * 8 + 0];
+ buffer[1] = in[i * 8 + 2];
+ buffer[2] = in[i * 8 + 4];
+ if(has_alpha) buffer[3] = in[i * 8 + 6];
+ }
+ }
+ }
+
+ return 0; /*no error*/
+}
+
+/*Get RGBA16 color of pixel with index i (y * width + x) from the raw image with
+given color type, but the given color type must be 16-bit itself.*/
+static unsigned getPixelColorRGBA16(unsigned short* r, unsigned short* g, unsigned short* b, unsigned short* a,
+ const unsigned char* in, size_t i, const LodePNGColorMode* mode)
+{
+ if(mode->bitdepth != 16) return 85; /*error: this function only supports 16-bit input*/
+
+ if(mode->colortype == LCT_GREY)
+ {
+ *r = *g = *b = 256 * in[i * 2 + 0] + in[i * 2 + 1];
+ if(mode->key_defined && 256U * in[i * 2 + 0] + in[i * 2 + 1] == mode->key_r) *a = 0;
+ else *a = 65535;
+ }
+ else if(mode->colortype == LCT_RGB)
+ {
+ *r = 256 * in[i * 6 + 0] + in[i * 6 + 1];
+ *g = 256 * in[i * 6 + 2] + in[i * 6 + 3];
+ *b = 256 * in[i * 6 + 4] + in[i * 6 + 5];
+ if(mode->key_defined && 256U * in[i * 6 + 0] + in[i * 6 + 1] == mode->key_r
+ && 256U * in[i * 6 + 2] + in[i * 6 + 3] == mode->key_g
+ && 256U * in[i * 6 + 4] + in[i * 6 + 5] == mode->key_b) *a = 0;
+ else *a = 65535;
+ }
+ else if(mode->colortype == LCT_GREY_ALPHA)
+ {
+ *r = *g = *b = 256 * in[i * 4 + 0] + in[i * 4 + 1];
+ *a = 256 * in[i * 4 + 2] + in[i * 4 + 3];
+ }
+ else if(mode->colortype == LCT_RGBA)
+ {
+ *r = 256 * in[i * 8 + 0] + in[i * 8 + 1];
+ *g = 256 * in[i * 8 + 2] + in[i * 8 + 3];
+ *b = 256 * in[i * 8 + 4] + in[i * 8 + 5];
+ *a = 256 * in[i * 8 + 6] + in[i * 8 + 7];
+ }
+ else return 85; /*error: this function only supports 16-bit input, not palettes*/
+
+ return 0; /*no error*/
+}
+
+/*
+converts from any color type to 24-bit or 32-bit (later maybe more supported). return value = LodePNG error code
+the out buffer must have (w * h * bpp + 7) / 8 bytes, where bpp is the bits per pixel of the output color type
+(lodepng_get_bpp) for < 8 bpp images, there may _not_ be padding bits at the end of scanlines.
+*/
+unsigned lodepng_convert(unsigned char* out, const unsigned char* in,
+ LodePNGColorMode* mode_out, const LodePNGColorMode* mode_in,
+ unsigned w, unsigned h, unsigned fix_png)
+{
+ unsigned error = 0;
+ size_t i;
+ ColorTree tree;
+ size_t numpixels = w * h;
+
+ if(lodepng_color_mode_equal(mode_out, mode_in))
+ {
+ size_t numbytes = lodepng_get_raw_size(w, h, mode_in);
+ for(i = 0; i < numbytes; i++) out[i] = in[i];
+ return error;
+ }
+
+ if(mode_out->colortype == LCT_PALETTE)
+ {
+ size_t palsize = 1 << mode_out->bitdepth;
+ if(mode_out->palettesize < palsize) palsize = mode_out->palettesize;
+ color_tree_init(&tree);
+ for(i = 0; i < palsize; i++)
+ {
+ unsigned char* p = &mode_out->palette[i * 4];
+ color_tree_add(&tree, p[0], p[1], p[2], p[3], i);
+ }
+ }
+
+ if(mode_in->bitdepth == 16 && mode_out->bitdepth == 16)
+ {
+ for(i = 0; i < numpixels; i++)
+ {
+ unsigned short r = 0, g = 0, b = 0, a = 0;
+ error = getPixelColorRGBA16(&r, &g, &b, &a, in, i, mode_in);
+ if(error) break;
+ error = rgba16ToPixel(out, i, mode_out, r, g, b, a);
+ if(error) break;
+ }
+ }
+ else if(mode_out->bitdepth == 8 && mode_out->colortype == LCT_RGBA)
+ {
+ error = getPixelColorsRGBA8(out, numpixels, 1, in, mode_in, fix_png);
+ }
+ else if(mode_out->bitdepth == 8 && mode_out->colortype == LCT_RGB)
+ {
+ error = getPixelColorsRGBA8(out, numpixels, 0, in, mode_in, fix_png);
+ }
+ else
+ {
+ unsigned char r = 0, g = 0, b = 0, a = 0;
+ for(i = 0; i < numpixels; i++)
+ {
+ error = getPixelColorRGBA8(&r, &g, &b, &a, in, i, mode_in, fix_png);
+ if(error) break;
+ error = rgba8ToPixel(out, i, mode_out, &tree, r, g, b, a);
+ if(error) break;
+ }
+ }
+
+ if(mode_out->colortype == LCT_PALETTE)
+ {
+ color_tree_cleanup(&tree);
+ }
+
+ return error;
+}
+
+#ifdef LODEPNG_COMPILE_ENCODER
+
+typedef struct ColorProfile
+{
+ unsigned char sixteenbit; /*needs more than 8 bits per channel*/
+ unsigned char sixteenbit_done;
+
+
+ unsigned char colored; /*not greyscale*/
+ unsigned char colored_done;
+
+ unsigned char key; /*a color key is required, or more*/
+ unsigned short key_r; /*these values are always in 16-bit bitdepth in the profile*/
+ unsigned short key_g;
+ unsigned short key_b;
+ unsigned char alpha; /*alpha channel, or alpha palette, required*/
+ unsigned char alpha_done;
+
+ unsigned numcolors;
+ ColorTree tree; /*for listing the counted colors, up to 256*/
+ unsigned char* palette; /*size 1024. Remember up to the first 256 RGBA colors*/
+ unsigned maxnumcolors; /*if more than that amount counted*/
+ unsigned char numcolors_done;
+
+ unsigned greybits; /*amount of bits required for greyscale (1, 2, 4, 8). Does not take 16 bit into account.*/
+ unsigned char greybits_done;
+
+} ColorProfile;
+
+static void color_profile_init(ColorProfile* profile, const LodePNGColorMode* mode)
+{
+ profile->sixteenbit = 0;
+ profile->sixteenbit_done = mode->bitdepth == 16 ? 0 : 1;
+
+ profile->colored = 0;
+ profile->colored_done = lodepng_is_greyscale_type(mode) ? 1 : 0;
+
+ profile->key = 0;
+ profile->alpha = 0;
+ profile->alpha_done = lodepng_can_have_alpha(mode) ? 0 : 1;
+
+ profile->numcolors = 0;
+ color_tree_init(&profile->tree);
+ profile->palette = (unsigned char*)lodepng_malloc(1024);
+ profile->maxnumcolors = 257;
+ if(lodepng_get_bpp(mode) <= 8)
+ {
+ int bpp = lodepng_get_bpp(mode);
+ profile->maxnumcolors = bpp == 1 ? 2 : (bpp == 2 ? 4 : (bpp == 4 ? 16 : 256));
+ }
+ profile->numcolors_done = 0;
+
+ profile->greybits = 1;
+ profile->greybits_done = lodepng_get_bpp(mode) == 1 ? 1 : 0;
+}
+
+static void color_profile_cleanup(ColorProfile* profile)
+{
+ color_tree_cleanup(&profile->tree);
+ lodepng_free(profile->palette);
+}
+
+/*function used for debug purposes with C++*/
+/*void printColorProfile(ColorProfile* p)
+{
+ std::cout << "sixteenbit: " << (int)p->sixteenbit << std::endl;
+ std::cout << "sixteenbit_done: " << (int)p->sixteenbit_done << std::endl;
+ std::cout << "colored: " << (int)p->colored << std::endl;
+ std::cout << "colored_done: " << (int)p->colored_done << std::endl;
+ std::cout << "key: " << (int)p->key << std::endl;
+ std::cout << "key_r: " << (int)p->key_r << std::endl;
+ std::cout << "key_g: " << (int)p->key_g << std::endl;
+ std::cout << "key_b: " << (int)p->key_b << std::endl;
+ std::cout << "alpha: " << (int)p->alpha << std::endl;
+ std::cout << "alpha_done: " << (int)p->alpha_done << std::endl;
+ std::cout << "numcolors: " << (int)p->numcolors << std::endl;
+ std::cout << "maxnumcolors: " << (int)p->maxnumcolors << std::endl;
+ std::cout << "numcolors_done: " << (int)p->numcolors_done << std::endl;
+ std::cout << "greybits: " << (int)p->greybits << std::endl;
+ std::cout << "greybits_done: " << (int)p->greybits_done << std::endl;
+}*/
+
+/*Returns how many bits needed to represent given value (max 8 bit)*/
+unsigned getValueRequiredBits(unsigned short value)
+{
+ if(value == 0 || value == 255) return 1;
+ /*The scaling of 2-bit and 4-bit values uses multiples of 85 and 17*/
+ if(value % 17 == 0) return value % 85 == 0 ? 2 : 4;
+ return 8;
+}
+
+/*profile must already have been inited with mode.
+It's ok to set some parameters of profile to done already.*/
+static unsigned get_color_profile(ColorProfile* profile,
+ const unsigned char* in,
+ size_t numpixels /*must be full image size, for certain filesize based choices*/,
+ const LodePNGColorMode* mode,
+ unsigned fix_png)
+{
+ unsigned error = 0;
+ size_t i;
+
+ if(mode->bitdepth == 16)
+ {
+ for(i = 0; i < numpixels; i++)
+ {
+ unsigned short r, g, b, a;
+ error = getPixelColorRGBA16(&r, &g, &b, &a, in, i, mode);
+ if(error) break;
+
+ /*a color is considered good for 8-bit if the first byte and the second byte are equal,
+ (so if it's divisible through 257), NOT necessarily if the second byte is 0*/
+ if(!profile->sixteenbit_done
+ && (((r & 255) != ((r >> 8) & 255))
+ || ((g & 255) != ((g >> 8) & 255))
+ || ((b & 255) != ((b >> 8) & 255))))
+ {
+ profile->sixteenbit = 1;
+ profile->sixteenbit_done = 1;
+ profile->greybits_done = 1; /*greybits is not applicable anymore at 16-bit*/
+ profile->numcolors_done = 1; /*counting colors no longer useful, palette doesn't support 16-bit*/
+ }
+
+ if(!profile->colored_done && (r != g || r != b))
+ {
+ profile->colored = 1;
+ profile->colored_done = 1;
+ profile->greybits_done = 1; /*greybits is not applicable anymore*/
+ }
+
+ if(!profile->alpha_done && a != 65535)
+ {
+ /*only use color key if numpixels large enough to justify tRNS chunk size*/
+ if(a == 0 && numpixels > 16 && !(profile->key && (r != profile->key_r || g != profile->key_g || b != profile->key_b)))
+ {
+ if(!profile->alpha && !profile->key)
+ {
+ profile->key = 1;
+ profile->key_r = r;
+ profile->key_g = g;
+ profile->key_b = b;
+ }
+ }
+ else
+ {
+ profile->alpha = 1;
+ profile->alpha_done = 1;
+ profile->greybits_done = 1; /*greybits is not applicable anymore*/
+ }
+ }
+
+ /* Color key cannot be used if an opaque pixel also has that RGB color. */
+ if(!profile->alpha_done && a == 65535 && profile->key
+ && r == profile->key_r && g == profile->key_g && b == profile->key_b)
+ {
+ profile->alpha = 1;
+ profile->alpha_done = 1;
+ profile->greybits_done = 1; /*greybits is not applicable anymore*/
+ }
+
+ if(!profile->greybits_done)
+ {
+ /*assuming 8-bit r, this test does not care about 16-bit*/
+ unsigned bits = getValueRequiredBits(r);
+ if(bits > profile->greybits) profile->greybits = bits;
+ if(profile->greybits >= 8) profile->greybits_done = 1;
+ }
+
+ if(!profile->numcolors_done)
+ {
+ /*assuming 8-bit rgba, this test does not care about 16-bit*/
+ if(!color_tree_has(&profile->tree, (unsigned char)r, (unsigned char)g, (unsigned char)b, (unsigned char)a))
+ {
+ color_tree_add(&profile->tree, (unsigned char)r, (unsigned char)g, (unsigned char)b, (unsigned char)a,
+ profile->numcolors);
+ if(profile->numcolors < 256)
+ {
+ unsigned char* p = profile->palette;
+ unsigned i = profile->numcolors;
+ p[i * 4 + 0] = (unsigned char)r;
+ p[i * 4 + 1] = (unsigned char)g;
+ p[i * 4 + 2] = (unsigned char)b;
+ p[i * 4 + 3] = (unsigned char)a;
+ }
+ profile->numcolors++;
+ if(profile->numcolors >= profile->maxnumcolors) profile->numcolors_done = 1;
+ }
+ }
+
+ if(profile->alpha_done && profile->numcolors_done
+ && profile->colored_done && profile->sixteenbit_done && profile->greybits_done)
+ {
+ break;
+ }
+ };
+ }
+ else /* < 16-bit */
+ {
+ for(i = 0; i < numpixels; i++)
+ {
+ unsigned char r = 0, g = 0, b = 0, a = 0;
+ error = getPixelColorRGBA8(&r, &g, &b, &a, in, i, mode, fix_png);
+ if(error) break;
+
+ if(!profile->colored_done && (r != g || r != b))
+ {
+ profile->colored = 1;
+ profile->colored_done = 1;
+ profile->greybits_done = 1; /*greybits is not applicable anymore*/
+ }
+
+ if(!profile->alpha_done && a != 255)
+ {
+ if(a == 0 && !(profile->key && (r != profile->key_r || g != profile->key_g || b != profile->key_b)))
+ {
+ if(!profile->key)
+ {
+ profile->key = 1;
+ profile->key_r = r;
+ profile->key_g = g;
+ profile->key_b = b;
+ }
+ }
+ else
+ {
+ profile->alpha = 1;
+ profile->alpha_done = 1;
+ profile->greybits_done = 1; /*greybits is not applicable anymore*/
+ }
+ }
+
+ /* Color key cannot be used if an opaque pixel also has that RGB color. */
+ if(!profile->alpha_done && a == 255 && profile->key
+ && r == profile->key_r && g == profile->key_g && b == profile->key_b)
+ {
+ profile->alpha = 1;
+ profile->alpha_done = 1;
+ profile->greybits_done = 1; /*greybits is not applicable anymore*/
+ }
+
+ if(!profile->greybits_done)
+ {
+ unsigned bits = getValueRequiredBits(r);
+ if(bits > profile->greybits) profile->greybits = bits;
+ if(profile->greybits >= 8) profile->greybits_done = 1;
+ }
+
+ if(!profile->numcolors_done)
+ {
+ if(!color_tree_has(&profile->tree, r, g, b, a))
+ {
+
+ color_tree_add(&profile->tree, r, g, b, a, profile->numcolors);
+ if(profile->numcolors < 256)
+ {
+ unsigned char* p = profile->palette;
+ unsigned i = profile->numcolors;
+ p[i * 4 + 0] = r;
+ p[i * 4 + 1] = g;
+ p[i * 4 + 2] = b;
+ p[i * 4 + 3] = a;
+ }
+ profile->numcolors++;
+ if(profile->numcolors >= profile->maxnumcolors) profile->numcolors_done = 1;
+ }
+ }
+
+ if(profile->alpha_done && profile->numcolors_done && profile->colored_done && profile->greybits_done)
+ {
+ break;
+ }
+ };
+ }
+
+ /*make the profile's key always 16-bit for consistency*/
+ if(mode->bitdepth < 16)
+ {
+ /*repeat each byte twice*/
+ profile->key_r *= 257;
+ profile->key_g *= 257;
+ profile->key_b *= 257;
+ }
+
+ return error;
+}
+
+static void setColorKeyFrom16bit(LodePNGColorMode* mode_out, unsigned r, unsigned g, unsigned b, unsigned bitdepth)
+{
+ unsigned mask = (1 << bitdepth) - 1;
+ mode_out->key_defined = 1;
+ mode_out->key_r = r & mask;
+ mode_out->key_g = g & mask;
+ mode_out->key_b = b & mask;
+}
+
+/*updates values of mode with a potentially smaller color model. mode_out should
+contain the user chosen color model, but will be overwritten with the new chosen one.*/
+unsigned lodepng_auto_choose_color(LodePNGColorMode* mode_out,
+ const unsigned char* image, unsigned w, unsigned h,
+ const LodePNGColorMode* mode_in,
+ LodePNGAutoConvert auto_convert)
+{
+ ColorProfile profile;
+ unsigned error = 0;
+ int no_nibbles = auto_convert == LAC_AUTO_NO_NIBBLES || auto_convert == LAC_AUTO_NO_NIBBLES_NO_PALETTE;
+ int no_palette = auto_convert == LAC_AUTO_NO_PALETTE || auto_convert == LAC_AUTO_NO_NIBBLES_NO_PALETTE;
+
+ if(auto_convert == LAC_ALPHA)
+ {
+ if(mode_out->colortype != LCT_RGBA && mode_out->colortype != LCT_GREY_ALPHA) return 0;
+ }
+
+ color_profile_init(&profile, mode_in);
+ if(auto_convert == LAC_ALPHA)
+ {
+ profile.colored_done = 1;
+ profile.greybits_done = 1;
+ profile.numcolors_done = 1;
+ profile.sixteenbit_done = 1;
+ }
+ error = get_color_profile(&profile, image, w * h, mode_in, 0 /*fix_png*/);
+ if(!error && auto_convert == LAC_ALPHA)
+ {
+ if(!profile.alpha)
+ {
+ mode_out->colortype = (mode_out->colortype == LCT_RGBA ? LCT_RGB : LCT_GREY);
+ if(profile.key) setColorKeyFrom16bit(mode_out, profile.key_r, profile.key_g, profile.key_b, mode_out->bitdepth);
+ }
+ }
+ else if(!error && auto_convert != LAC_ALPHA)
+ {
+ mode_out->key_defined = 0;
+
+ if(profile.sixteenbit)
+ {
+ mode_out->bitdepth = 16;
+ if(profile.alpha)
+ {
+ mode_out->colortype = profile.colored ? LCT_RGBA : LCT_GREY_ALPHA;
+ }
+ else
+ {
+ mode_out->colortype = profile.colored ? LCT_RGB : LCT_GREY;
+ if(profile.key) setColorKeyFrom16bit(mode_out, profile.key_r, profile.key_g, profile.key_b, mode_out->bitdepth);
+ }
+ }
+ else /*less than 16 bits per channel*/
+ {
+ /*don't add palette overhead if image hasn't got a lot of pixels*/
+ unsigned n = profile.numcolors;
+ int palette_ok = !no_palette && n <= 256 && (n * 2 < w * h);
+ unsigned palettebits = n <= 2 ? 1 : (n <= 4 ? 2 : (n <= 16 ? 4 : 8));
+ int grey_ok = !profile.colored && !profile.alpha; /*grey without alpha, with potentially low bits*/
+ if(palette_ok || grey_ok)
+ {
+ if(!palette_ok || (grey_ok && profile.greybits <= palettebits))
+ {
+ unsigned grey = profile.key_r;
+ mode_out->colortype = LCT_GREY;
+ mode_out->bitdepth = profile.greybits;
+ if(profile.key) setColorKeyFrom16bit(mode_out, grey, grey, grey, mode_out->bitdepth);
+ }
+ else
+ {
+ /*fill in the palette*/
+ unsigned i;
+ unsigned char* p = profile.palette;
+ /*remove potential earlier palette*/
+ lodepng_palette_clear(mode_out);
+ for(i = 0; i < profile.numcolors; i++)
+ {
+ error = lodepng_palette_add(mode_out, p[i * 4 + 0], p[i * 4 + 1], p[i * 4 + 2], p[i * 4 + 3]);
+ if(error) break;
+ }
+
+ mode_out->colortype = LCT_PALETTE;
+ mode_out->bitdepth = palettebits;
+ }
+ }
+ else /*8-bit per channel*/
+ {
+ mode_out->bitdepth = 8;
+ if(profile.alpha)
+ {
+ mode_out->colortype = profile.colored ? LCT_RGBA : LCT_GREY_ALPHA;
+ }
+ else
+ {
+ mode_out->colortype = profile.colored ? LCT_RGB : LCT_GREY /*LCT_GREY normally won't occur, already done earlier*/;
+ if(profile.key) setColorKeyFrom16bit(mode_out, profile.key_r, profile.key_g, profile.key_b, mode_out->bitdepth);
+ }
+ }
+ }
+ }
+
+ color_profile_cleanup(&profile);
+
+ if(mode_out->colortype == LCT_PALETTE && mode_in->palettesize == mode_out->palettesize)
+ {
+ /*In this case keep the palette order of the input, so that the user can choose an optimal one*/
+ size_t i;
+ for(i = 0; i < mode_in->palettesize * 4; i++)
+ {
+ mode_out->palette[i] = mode_in->palette[i];
+ }
+ }
+
+ if(no_nibbles && mode_out->bitdepth < 8)
+ {
+ /*palette can keep its small amount of colors, as long as no indices use it*/
+ mode_out->bitdepth = 8;
+ }
+
+ return error;
+}
+
+#endif /* #ifdef LODEPNG_COMPILE_ENCODER */
+
+/*
+Paeth predicter, used by PNG filter type 4
+The parameters are of type short, but should come from unsigned chars, the shorts
+are only needed to make the paeth calculation correct.
+*/
+static unsigned char paethPredictor(short a, short b, short c)
+{
+ short pa = abs(b - c);
+ short pb = abs(a - c);
+ short pc = abs(a + b - c - c);
+
+ if(pc < pa && pc < pb) return (unsigned char)c;
+ else if(pb < pa) return (unsigned char)b;
+ else return (unsigned char)a;
+}
+
+/*shared values used by multiple Adam7 related functions*/
+
+static const unsigned ADAM7_IX[7] = { 0, 4, 0, 2, 0, 1, 0 }; /*x start values*/
+static const unsigned ADAM7_IY[7] = { 0, 0, 4, 0, 2, 0, 1 }; /*y start values*/
+static const unsigned ADAM7_DX[7] = { 8, 8, 4, 4, 2, 2, 1 }; /*x delta values*/
+static const unsigned ADAM7_DY[7] = { 8, 8, 8, 4, 4, 2, 2 }; /*y delta values*/
+
+/*
+Outputs various dimensions and positions in the image related to the Adam7 reduced images.
+passw: output containing the width of the 7 passes
+passh: output containing the height of the 7 passes
+filter_passstart: output containing the index of the start and end of each
+ reduced image with filter bytes
+padded_passstart output containing the index of the start and end of each
+ reduced image when without filter bytes but with padded scanlines
+passstart: output containing the index of the start and end of each reduced
+ image without padding between scanlines, but still padding between the images
+w, h: width and height of non-interlaced image
+bpp: bits per pixel
+"padded" is only relevant if bpp is less than 8 and a scanline or image does not
+ end at a full byte
+*/
+static void Adam7_getpassvalues(unsigned passw[7], unsigned passh[7], size_t filter_passstart[8],
+ size_t padded_passstart[8], size_t passstart[8], unsigned w, unsigned h, unsigned bpp)
+{
+ /*the passstart values have 8 values: the 8th one indicates the byte after the end of the 7th (= last) pass*/
+ unsigned i;
+
+ /*calculate width and height in pixels of each pass*/
+ for(i = 0; i < 7; i++)
+ {
+ passw[i] = (w + ADAM7_DX[i] - ADAM7_IX[i] - 1) / ADAM7_DX[i];
+ passh[i] = (h + ADAM7_DY[i] - ADAM7_IY[i] - 1) / ADAM7_DY[i];
+ if(passw[i] == 0) passh[i] = 0;
+ if(passh[i] == 0) passw[i] = 0;
+ }
+
+ filter_passstart[0] = padded_passstart[0] = passstart[0] = 0;
+ for(i = 0; i < 7; i++)
+ {
+ /*if passw[i] is 0, it's 0 bytes, not 1 (no filtertype-byte)*/
+ filter_passstart[i + 1] = filter_passstart[i]
+ + ((passw[i] && passh[i]) ? passh[i] * (1 + (passw[i] * bpp + 7) / 8) : 0);
+ /*bits padded if needed to fill full byte at end of each scanline*/
+ padded_passstart[i + 1] = padded_passstart[i] + passh[i] * ((passw[i] * bpp + 7) / 8);
+ /*only padded at end of reduced image*/
+ passstart[i + 1] = passstart[i] + (passh[i] * passw[i] * bpp + 7) / 8;
+ }
+}
+
+#ifdef LODEPNG_COMPILE_DECODER
+
+/* ////////////////////////////////////////////////////////////////////////// */
+/* / PNG Decoder / */
+/* ////////////////////////////////////////////////////////////////////////// */
+
+/*read the information from the header and store it in the LodePNGInfo. return value is error*/
+unsigned lodepng_inspect(unsigned* w, unsigned* h, LodePNGState* state,
+ const unsigned char* in, size_t insize)
+{
+ LodePNGInfo* info = &state->info_png;
+ if(insize == 0 || in == 0)
+ {
+ CERROR_RETURN_ERROR(state->error, 48); /*error: the given data is empty*/
+ }
+ if(insize < 29)
+ {
+ CERROR_RETURN_ERROR(state->error, 27); /*error: the data length is smaller than the length of a PNG header*/
+ }
+
+ /*when decoding a new PNG image, make sure all parameters created after previous decoding are reset*/
+ lodepng_info_cleanup(info);
+ lodepng_info_init(info);
+
+ if(in[0] != 137 || in[1] != 80 || in[2] != 78 || in[3] != 71
+ || in[4] != 13 || in[5] != 10 || in[6] != 26 || in[7] != 10)
+ {
+ CERROR_RETURN_ERROR(state->error, 28); /*error: the first 8 bytes are not the correct PNG signature*/
+ }
+ if(in[12] != 'I' || in[13] != 'H' || in[14] != 'D' || in[15] != 'R')
+ {
+ CERROR_RETURN_ERROR(state->error, 29); /*error: it doesn't start with a IHDR chunk!*/
+ }
+
+ /*read the values given in the header*/
+ *w = lodepng_read32bitInt(&in[16]);
+ *h = lodepng_read32bitInt(&in[20]);
+ info->color.bitdepth = in[24];
+ info->color.colortype = (LodePNGColorType)in[25];
+ info->compression_method = in[26];
+ info->filter_method = in[27];
+ info->interlace_method = in[28];
+
+ if(!state->decoder.ignore_crc)
+ {
+ unsigned CRC = lodepng_read32bitInt(&in[29]);
+ unsigned checksum = lodepng_crc32(&in[12], 17);
+ if(CRC != checksum)
+ {
+ CERROR_RETURN_ERROR(state->error, 57); /*invalid CRC*/
+ }
+ }
+
+ /*error: only compression method 0 is allowed in the specification*/
+ if(info->compression_method != 0) CERROR_RETURN_ERROR(state->error, 32);
+ /*error: only filter method 0 is allowed in the specification*/
+ if(info->filter_method != 0) CERROR_RETURN_ERROR(state->error, 33);
+ /*error: only interlace methods 0 and 1 exist in the specification*/
+ if(info->interlace_method > 1) CERROR_RETURN_ERROR(state->error, 34);
+
+ state->error = checkColorValidity(info->color.colortype, info->color.bitdepth);
+ return state->error;
+}
+
+static unsigned unfilterScanline(unsigned char* recon, const unsigned char* scanline, const unsigned char* precon,
+ size_t bytewidth, unsigned char filterType, size_t length)
+{
+ /*
+ For PNG filter method 0
+ unfilter a PNG image scanline by scanline. when the pixels are smaller than 1 byte,
+ the filter works byte per byte (bytewidth = 1)
+ precon is the previous unfiltered scanline, recon the result, scanline the current one
+ the incoming scanlines do NOT include the filtertype byte, that one is given in the parameter filterType instead
+ recon and scanline MAY be the same memory address! precon must be disjoint.
+ */
+
+ size_t i;
+ switch(filterType)
+ {
+ case 0:
+ for(i = 0; i < length; i++) recon[i] = scanline[i];
+ break;
+ case 1:
+ for(i = 0; i < bytewidth; i++) recon[i] = scanline[i];
+ for(i = bytewidth; i < length; i++) recon[i] = scanline[i] + recon[i - bytewidth];
+ break;
+ case 2:
+ if(precon)
+ {
+ for(i = 0; i < length; i++) recon[i] = scanline[i] + precon[i];
+ }
+ else
+ {
+ for(i = 0; i < length; i++) recon[i] = scanline[i];
+ }
+ break;
+ case 3:
+ if(precon)
+ {
+ for(i = 0; i < bytewidth; i++) recon[i] = scanline[i] + precon[i] / 2;
+ for(i = bytewidth; i < length; i++) recon[i] = scanline[i] + ((recon[i - bytewidth] + precon[i]) / 2);
+ }
+ else
+ {
+ for(i = 0; i < bytewidth; i++) recon[i] = scanline[i];
+ for(i = bytewidth; i < length; i++) recon[i] = scanline[i] + recon[i - bytewidth] / 2;
+ }
+ break;
+ case 4:
+ if(precon)
+ {
+ for(i = 0; i < bytewidth; i++)
+ {
+ recon[i] = (scanline[i] + precon[i]); /*paethPredictor(0, precon[i], 0) is always precon[i]*/
+ }
+ for(i = bytewidth; i < length; i++)
+ {
+ recon[i] = (scanline[i] + paethPredictor(recon[i - bytewidth], precon[i], precon[i - bytewidth]));
+ }
+ }
+ else
+ {
+ for(i = 0; i < bytewidth; i++)
+ {
+ recon[i] = scanline[i];
+ }
+ for(i = bytewidth; i < length; i++)
+ {
+ /*paethPredictor(recon[i - bytewidth], 0, 0) is always recon[i - bytewidth]*/
+ recon[i] = (scanline[i] + recon[i - bytewidth]);
+ }
+ }
+ break;
+ default: return 36; /*error: unexisting filter type given*/
+ }
+ return 0;
+}
+
+static unsigned unfilter(unsigned char* out, const unsigned char* in, unsigned w, unsigned h, unsigned bpp)
+{
+ /*
+ For PNG filter method 0
+ this function unfilters a single image (e.g. without interlacing this is called once, with Adam7 seven times)
+ out must have enough bytes allocated already, in must have the scanlines + 1 filtertype byte per scanline
+ w and h are image dimensions or dimensions of reduced image, bpp is bits per pixel
+ in and out are allowed to be the same memory address (but aren't the same size since in has the extra filter bytes)
+ */
+
+ unsigned y;
+ unsigned char* prevline = 0;
+
+ /*bytewidth is used for filtering, is 1 when bpp < 8, number of bytes per pixel otherwise*/
+ size_t bytewidth = (bpp + 7) / 8;
+ size_t linebytes = (w * bpp + 7) / 8;
+
+ for(y = 0; y < h; y++)
+ {
+ size_t outindex = linebytes * y;
+ size_t inindex = (1 + linebytes) * y; /*the extra filterbyte added to each row*/
+ unsigned char filterType = in[inindex];
+
+ CERROR_TRY_RETURN(unfilterScanline(&out[outindex], &in[inindex + 1], prevline, bytewidth, filterType, linebytes));
+
+ prevline = &out[outindex];
+ }
+
+ return 0;
+}
+
+/*
+in: Adam7 interlaced image, with no padding bits between scanlines, but between
+ reduced images so that each reduced image starts at a byte.
+out: the same pixels, but re-ordered so that they're now a non-interlaced image with size w*h
+bpp: bits per pixel
+out has the following size in bits: w * h * bpp.
+in is possibly bigger due to padding bits between reduced images.
+out must be big enough AND must be 0 everywhere if bpp < 8 in the current implementation
+(because that's likely a little bit faster)
+NOTE: comments about padding bits are only relevant if bpp < 8
+*/
+static void Adam7_deinterlace(unsigned char* out, const unsigned char* in, unsigned w, unsigned h, unsigned bpp)
+{
+ unsigned passw[7], passh[7];
+ size_t filter_passstart[8], padded_passstart[8], passstart[8];
+ unsigned i;
+
+ Adam7_getpassvalues(passw, passh, filter_passstart, padded_passstart, passstart, w, h, bpp);
+
+ if(bpp >= 8)
+ {
+ for(i = 0; i < 7; i++)
+ {
+ unsigned x, y, b;
+ size_t bytewidth = bpp / 8;
+ for(y = 0; y < passh[i]; y++)
+ for(x = 0; x < passw[i]; x++)
+ {
+ size_t pixelinstart = passstart[i] + (y * passw[i] + x) * bytewidth;
+ size_t pixeloutstart = ((ADAM7_IY[i] + y * ADAM7_DY[i]) * w + ADAM7_IX[i] + x * ADAM7_DX[i]) * bytewidth;
+ for(b = 0; b < bytewidth; b++)
+ {
+ out[pixeloutstart + b] = in[pixelinstart + b];
+ }
+ }
+ }
+ }
+ else /*bpp < 8: Adam7 with pixels < 8 bit is a bit trickier: with bit pointers*/
+ {
+ for(i = 0; i < 7; i++)
+ {
+ unsigned x, y, b;
+ unsigned ilinebits = bpp * passw[i];
+ unsigned olinebits = bpp * w;
+ size_t obp, ibp; /*bit pointers (for out and in buffer)*/
+ for(y = 0; y < passh[i]; y++)
+ for(x = 0; x < passw[i]; x++)
+ {
+ ibp = (8 * passstart[i]) + (y * ilinebits + x * bpp);
+ obp = (ADAM7_IY[i] + y * ADAM7_DY[i]) * olinebits + (ADAM7_IX[i] + x * ADAM7_DX[i]) * bpp;
+ for(b = 0; b < bpp; b++)
+ {
+ unsigned char bit = readBitFromReversedStream(&ibp, in);
+ /*note that this function assumes the out buffer is completely 0, use setBitOfReversedStream otherwise*/
+ setBitOfReversedStream0(&obp, out, bit);
+ }
+ }
+ }
+ }
+}
+
+static void removePaddingBits(unsigned char* out, const unsigned char* in,
+ size_t olinebits, size_t ilinebits, unsigned h)
+{
+ /*
+ After filtering there are still padding bits if scanlines have non multiple of 8 bit amounts. They need
+ to be removed (except at last scanline of (Adam7-reduced) image) before working with pure image buffers
+ for the Adam7 code, the color convert code and the output to the user.
+ in and out are allowed to be the same buffer, in may also be higher but still overlapping; in must
+ have >= ilinebits*h bits, out must have >= olinebits*h bits, olinebits must be <= ilinebits
+ also used to move bits after earlier such operations happened, e.g. in a sequence of reduced images from Adam7
+ only useful if (ilinebits - olinebits) is a value in the range 1..7
+ */
+ unsigned y;
+ size_t diff = ilinebits - olinebits;
+ size_t ibp = 0, obp = 0; /*input and output bit pointers*/
+ for(y = 0; y < h; y++)
+ {
+ size_t x;
+ for(x = 0; x < olinebits; x++)
+ {
+ unsigned char bit = readBitFromReversedStream(&ibp, in);
+ setBitOfReversedStream(&obp, out, bit);
+ }
+ ibp += diff;
+ }
+}
+
+/*out must be buffer big enough to contain full image, and in must contain the full decompressed data from
+the IDAT chunks (with filter index bytes and possible padding bits)
+return value is error*/
+static unsigned postProcessScanlines(unsigned char* out, unsigned char* in,
+ unsigned w, unsigned h, const LodePNGInfo* info_png)
+{
+ /*
+ This function converts the filtered-padded-interlaced data into pure 2D image buffer with the PNG's colortype.
+ Steps:
+ *) if no Adam7: 1) unfilter 2) remove padding bits (= posible extra bits per scanline if bpp < 8)
+ *) if adam7: 1) 7x unfilter 2) 7x remove padding bits 3) Adam7_deinterlace
+ NOTE: the in buffer will be overwritten with intermediate data!
+ */
+ unsigned bpp = lodepng_get_bpp(&info_png->color);
+ if(bpp == 0) return 31; /*error: invalid colortype*/
+
+ if(info_png->interlace_method == 0)
+ {
+ if(bpp < 8 && w * bpp != ((w * bpp + 7) / 8) * 8)
+ {
+ CERROR_TRY_RETURN(unfilter(in, in, w, h, bpp));
+ removePaddingBits(out, in, w * bpp, ((w * bpp + 7) / 8) * 8, h);
+ }
+ /*we can immediatly filter into the out buffer, no other steps needed*/
+ else CERROR_TRY_RETURN(unfilter(out, in, w, h, bpp));
+ }
+ else /*interlace_method is 1 (Adam7)*/
+ {
+ unsigned passw[7], passh[7]; size_t filter_passstart[8], padded_passstart[8], passstart[8];
+ unsigned i;
+
+ Adam7_getpassvalues(passw, passh, filter_passstart, padded_passstart, passstart, w, h, bpp);
+
+ for(i = 0; i < 7; i++)
+ {
+ CERROR_TRY_RETURN(unfilter(&in[padded_passstart[i]], &in[filter_passstart[i]], passw[i], passh[i], bpp));
+ /*TODO: possible efficiency improvement: if in this reduced image the bits fit nicely in 1 scanline,
+ move bytes instead of bits or move not at all*/
+ if(bpp < 8)
+ {
+ /*remove padding bits in scanlines; after this there still may be padding
+ bits between the different reduced images: each reduced image still starts nicely at a byte*/
+ removePaddingBits(&in[passstart[i]], &in[padded_passstart[i]], passw[i] * bpp,
+ ((passw[i] * bpp + 7) / 8) * 8, passh[i]);
+ }
+ }
+
+ Adam7_deinterlace(out, in, w, h, bpp);
+ }
+
+ return 0;
+}
+
+static unsigned readChunk_PLTE(LodePNGColorMode* color, const unsigned char* data, size_t chunkLength)
+{
+ unsigned pos = 0, i;
+ if(color->palette) lodepng_free(color->palette);
+ color->palettesize = chunkLength / 3;
+ color->palette = (unsigned char*)lodepng_malloc(4 * color->palettesize);
+ if(!color->palette && color->palettesize)
+ {
+ color->palettesize = 0;
+ return 83; /*alloc fail*/
+ }
+ if(color->palettesize > 256) return 38; /*error: palette too big*/
+
+ for(i = 0; i < color->palettesize; i++)
+ {
+ color->palette[4 * i + 0] = data[pos++]; /*R*/
+ color->palette[4 * i + 1] = data[pos++]; /*G*/
+ color->palette[4 * i + 2] = data[pos++]; /*B*/
+ color->palette[4 * i + 3] = 255; /*alpha*/
+ }
+
+ return 0; /* OK */
+}
+
+static unsigned readChunk_tRNS(LodePNGColorMode* color, const unsigned char* data, size_t chunkLength)
+{
+ unsigned i;
+ if(color->colortype == LCT_PALETTE)
+ {
+ /*error: more alpha values given than there are palette entries*/
+ if(chunkLength > color->palettesize) return 38;
+
+ for(i = 0; i < chunkLength; i++) color->palette[4 * i + 3] = data[i];
+ }
+ else if(color->colortype == LCT_GREY)
+ {
+ /*error: this chunk must be 2 bytes for greyscale image*/
+ if(chunkLength != 2) return 30;
+
+ color->key_defined = 1;
+ color->key_r = color->key_g = color->key_b = 256 * data[0] + data[1];
+ }
+ else if(color->colortype == LCT_RGB)
+ {
+ /*error: this chunk must be 6 bytes for RGB image*/
+ if(chunkLength != 6) return 41;
+
+ color->key_defined = 1;
+ color->key_r = 256 * data[0] + data[1];
+ color->key_g = 256 * data[2] + data[3];
+ color->key_b = 256 * data[4] + data[5];
+ }
+ else return 42; /*error: tRNS chunk not allowed for other color models*/
+
+ return 0; /* OK */
+}
+
+
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+/*background color chunk (bKGD)*/
+static unsigned readChunk_bKGD(LodePNGInfo* info, const unsigned char* data, size_t chunkLength)
+{
+ if(info->color.colortype == LCT_PALETTE)
+ {
+ /*error: this chunk must be 1 byte for indexed color image*/
+ if(chunkLength != 1) return 43;
+
+ info->background_defined = 1;
+ info->background_r = info->background_g = info->background_b = data[0];
+ }
+ else if(info->color.colortype == LCT_GREY || info->color.colortype == LCT_GREY_ALPHA)
+ {
+ /*error: this chunk must be 2 bytes for greyscale image*/
+ if(chunkLength != 2) return 44;
+
+ info->background_defined = 1;
+ info->background_r = info->background_g = info->background_b
+ = 256 * data[0] + data[1];
+ }
+ else if(info->color.colortype == LCT_RGB || info->color.colortype == LCT_RGBA)
+ {
+ /*error: this chunk must be 6 bytes for greyscale image*/
+ if(chunkLength != 6) return 45;
+
+ info->background_defined = 1;
+ info->background_r = 256 * data[0] + data[1];
+ info->background_g = 256 * data[2] + data[3];
+ info->background_b = 256 * data[4] + data[5];
+ }
+
+ return 0; /* OK */
+}
+
+/*text chunk (tEXt)*/
+static unsigned readChunk_tEXt(LodePNGInfo* info, const unsigned char* data, size_t chunkLength)
+{
+ unsigned error = 0;
+ char *key = 0, *str = 0;
+ unsigned i;
+
+ while(!error) /*not really a while loop, only used to break on error*/
+ {
+ unsigned length, string2_begin;
+
+ length = 0;
+ while(length < chunkLength && data[length] != 0) length++;
+ /*even though it's not allowed by the standard, no error is thrown if
+ there's no null termination char, if the text is empty*/
+ if(length < 1 || length > 79) CERROR_BREAK(error, 89); /*keyword too short or long*/
+
+ key = (char*)lodepng_malloc(length + 1);
+ if(!key) CERROR_BREAK(error, 83); /*alloc fail*/
+
+ key[length] = 0;
+ for(i = 0; i < length; i++) key[i] = data[i];
+
+ string2_begin = length + 1; /*skip keyword null terminator*/
+
+ length = chunkLength < string2_begin ? 0 : chunkLength - string2_begin;
+ str = (char*)lodepng_malloc(length + 1);
+ if(!str) CERROR_BREAK(error, 83); /*alloc fail*/
+
+ str[length] = 0;
+ for(i = 0; i < length; i++) str[i] = data[string2_begin + i];
+
+ error = lodepng_add_text(info, key, str);
+
+ break;
+ }
+
+ lodepng_free(key);
+ lodepng_free(str);
+
+ return error;
+}
+
+/*compressed text chunk (zTXt)*/
+static unsigned readChunk_zTXt(LodePNGInfo* info, const LodePNGDecompressSettings* zlibsettings,
+ const unsigned char* data, size_t chunkLength)
+{
+ unsigned error = 0;
+ unsigned i;
+
+ unsigned length, string2_begin;
+ char *key = 0;
+ ucvector decoded;
+
+ ucvector_init(&decoded);
+
+ while(!error) /*not really a while loop, only used to break on error*/
+ {
+ for(length = 0; length < chunkLength && data[length] != 0; length++) ;
+ if(length + 2 >= chunkLength) CERROR_BREAK(error, 75); /*no null termination, corrupt?*/
+ if(length < 1 || length > 79) CERROR_BREAK(error, 89); /*keyword too short or long*/
+
+ key = (char*)lodepng_malloc(length + 1);
+ if(!key) CERROR_BREAK(error, 83); /*alloc fail*/
+
+ key[length] = 0;
+ for(i = 0; i < length; i++) key[i] = data[i];
+
+ if(data[length + 1] != 0) CERROR_BREAK(error, 72); /*the 0 byte indicating compression must be 0*/
+
+ string2_begin = length + 2;
+ if(string2_begin > chunkLength) CERROR_BREAK(error, 75); /*no null termination, corrupt?*/
+
+ length = chunkLength - string2_begin;
+ /*will fail if zlib error, e.g. if length is too small*/
+ error = zlib_decompress(&decoded.data, &decoded.size,
+ (unsigned char*)(&data[string2_begin]),
+ length, zlibsettings);
+ if(error) break;
+ ucvector_push_back(&decoded, 0);
+
+ error = lodepng_add_text(info, key, (char*)decoded.data);
+
+ break;
+ }
+
+ lodepng_free(key);
+ ucvector_cleanup(&decoded);
+
+ return error;
+}
+
+/*international text chunk (iTXt)*/
+static unsigned readChunk_iTXt(LodePNGInfo* info, const LodePNGDecompressSettings* zlibsettings,
+ const unsigned char* data, size_t chunkLength)
+{
+ unsigned error = 0;
+ unsigned i;
+
+ unsigned length, begin, compressed;
+ char *key = 0, *langtag = 0, *transkey = 0;
+ ucvector decoded;
+ ucvector_init(&decoded);
+
+ while(!error) /*not really a while loop, only used to break on error*/
+ {
+ /*Quick check if the chunk length isn't too small. Even without check
+ it'd still fail with other error checks below if it's too short. This just gives a different error code.*/
+ if(chunkLength < 5) CERROR_BREAK(error, 30); /*iTXt chunk too short*/
+
+ /*read the key*/
+ for(length = 0; length < chunkLength && data[length] != 0; length++) ;
+ if(length + 3 >= chunkLength) CERROR_BREAK(error, 75); /*no null termination char, corrupt?*/
+ if(length < 1 || length > 79) CERROR_BREAK(error, 89); /*keyword too short or long*/
+
+ key = (char*)lodepng_malloc(length + 1);
+ if(!key) CERROR_BREAK(error, 83); /*alloc fail*/
+
+ key[length] = 0;
+ for(i = 0; i < length; i++) key[i] = data[i];
+
+ /*read the compression method*/
+ compressed = data[length + 1];
+ if(data[length + 2] != 0) CERROR_BREAK(error, 72); /*the 0 byte indicating compression must be 0*/
+
+ /*even though it's not allowed by the standard, no error is thrown if
+ there's no null termination char, if the text is empty for the next 3 texts*/
+
+ /*read the langtag*/
+ begin = length + 3;
+ length = 0;
+ for(i = begin; i < chunkLength && data[i] != 0; i++) length++;
+
+ langtag = (char*)lodepng_malloc(length + 1);
+ if(!langtag) CERROR_BREAK(error, 83); /*alloc fail*/
+
+ langtag[length] = 0;
+ for(i = 0; i < length; i++) langtag[i] = data[begin + i];
+
+ /*read the transkey*/
+ begin += length + 1;
+ length = 0;
+ for(i = begin; i < chunkLength && data[i] != 0; i++) length++;
+
+ transkey = (char*)lodepng_malloc(length + 1);
+ if(!transkey) CERROR_BREAK(error, 83); /*alloc fail*/
+
+ transkey[length] = 0;
+ for(i = 0; i < length; i++) transkey[i] = data[begin + i];
+
+ /*read the actual text*/
+ begin += length + 1;
+
+ length = chunkLength < begin ? 0 : chunkLength - begin;
+
+ if(compressed)
+ {
+ /*will fail if zlib error, e.g. if length is too small*/
+ error = zlib_decompress(&decoded.data, &decoded.size,
+ (unsigned char*)(&data[begin]),
+ length, zlibsettings);
+ if(error) break;
+ if(decoded.allocsize < decoded.size) decoded.allocsize = decoded.size;
+ ucvector_push_back(&decoded, 0);
+ }
+ else
+ {
+ if(!ucvector_resize(&decoded, length + 1)) CERROR_BREAK(error, 83 /*alloc fail*/);
+
+ decoded.data[length] = 0;
+ for(i = 0; i < length; i++) decoded.data[i] = data[begin + i];
+ }
+
+ error = lodepng_add_itext(info, key, langtag, transkey, (char*)decoded.data);
+
+ break;
+ }
+
+ lodepng_free(key);
+ lodepng_free(langtag);
+ lodepng_free(transkey);
+ ucvector_cleanup(&decoded);
+
+ return error;
+}
+
+static unsigned readChunk_tIME(LodePNGInfo* info, const unsigned char* data, size_t chunkLength)
+{
+ if(chunkLength != 7) return 73; /*invalid tIME chunk size*/
+
+ info->time_defined = 1;
+ info->time.year = 256 * data[0] + data[+ 1];
+ info->time.month = data[2];
+ info->time.day = data[3];
+ info->time.hour = data[4];
+ info->time.minute = data[5];
+ info->time.second = data[6];
+
+ return 0; /* OK */
+}
+
+static unsigned readChunk_pHYs(LodePNGInfo* info, const unsigned char* data, size_t chunkLength)
+{
+ if(chunkLength != 9) return 74; /*invalid pHYs chunk size*/
+
+ info->phys_defined = 1;
+ info->phys_x = 16777216 * data[0] + 65536 * data[1] + 256 * data[2] + data[3];
+ info->phys_y = 16777216 * data[4] + 65536 * data[5] + 256 * data[6] + data[7];
+ info->phys_unit = data[8];
+
+ return 0; /* OK */
+}
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+
+/*read a PNG, the result will be in the same color type as the PNG (hence "generic")*/
+static void decodeGeneric(unsigned char** out, unsigned* w, unsigned* h,
+ LodePNGState* state,
+ const unsigned char* in, size_t insize)
+{
+ unsigned char IEND = 0;
+ const unsigned char* chunk;
+ size_t i;
+ ucvector idat; /*the data from idat chunks*/
+ ucvector scanlines;
+
+ /*for unknown chunk order*/
+ unsigned unknown = 0;
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ unsigned critical_pos = 1; /*1 = after IHDR, 2 = after PLTE, 3 = after IDAT*/
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+
+ /*provide some proper output values if error will happen*/
+ *out = 0;
+
+ state->error = lodepng_inspect(w, h, state, in, insize); /*reads header and resets other parameters in state->info_png*/
+ if(state->error) return;
+
+ ucvector_init(&idat);
+ chunk = &in[33]; /*first byte of the first chunk after the header*/
+
+ /*loop through the chunks, ignoring unknown chunks and stopping at IEND chunk.
+ IDAT data is put at the start of the in buffer*/
+ while(!IEND && !state->error)
+ {
+ unsigned chunkLength;
+ const unsigned char* data; /*the data in the chunk*/
+
+ /*error: size of the in buffer too small to contain next chunk*/
+ if((size_t)((chunk - in) + 12) > insize || chunk < in) CERROR_BREAK(state->error, 30);
+
+ /*length of the data of the chunk, excluding the length bytes, chunk type and CRC bytes*/
+ chunkLength = lodepng_chunk_length(chunk);
+ /*error: chunk length larger than the max PNG chunk size*/
+ if(chunkLength > 2147483647) CERROR_BREAK(state->error, 63);
+
+ if((size_t)((chunk - in) + chunkLength + 12) > insize || (chunk + chunkLength + 12) < in)
+ {
+ CERROR_BREAK(state->error, 64); /*error: size of the in buffer too small to contain next chunk*/
+ }
+
+ data = lodepng_chunk_data_const(chunk);
+
+ /*IDAT chunk, containing compressed image data*/
+ if(lodepng_chunk_type_equals(chunk, "IDAT"))
+ {
+ size_t oldsize = idat.size;
+ if(!ucvector_resize(&idat, oldsize + chunkLength)) CERROR_BREAK(state->error, 83 /*alloc fail*/);
+ for(i = 0; i < chunkLength; i++) idat.data[oldsize + i] = data[i];
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ critical_pos = 3;
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+ }
+ /*IEND chunk*/
+ else if(lodepng_chunk_type_equals(chunk, "IEND"))
+ {
+ IEND = 1;
+ }
+ /*palette chunk (PLTE)*/
+ else if(lodepng_chunk_type_equals(chunk, "PLTE"))
+ {
+ state->error = readChunk_PLTE(&state->info_png.color, data, chunkLength);
+ if(state->error) break;
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ critical_pos = 2;
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+ }
+ /*palette transparency chunk (tRNS)*/
+ else if(lodepng_chunk_type_equals(chunk, "tRNS"))
+ {
+ state->error = readChunk_tRNS(&state->info_png.color, data, chunkLength);
+ if(state->error) break;
+ }
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ /*background color chunk (bKGD)*/
+ else if(lodepng_chunk_type_equals(chunk, "bKGD"))
+ {
+ state->error = readChunk_bKGD(&state->info_png, data, chunkLength);
+ if(state->error) break;
+ }
+ /*text chunk (tEXt)*/
+ else if(lodepng_chunk_type_equals(chunk, "tEXt"))
+ {
+ if(state->decoder.read_text_chunks)
+ {
+ state->error = readChunk_tEXt(&state->info_png, data, chunkLength);
+ if(state->error) break;
+ }
+ }
+ /*compressed text chunk (zTXt)*/
+ else if(lodepng_chunk_type_equals(chunk, "zTXt"))
+ {
+ if(state->decoder.read_text_chunks)
+ {
+ state->error = readChunk_zTXt(&state->info_png, &state->decoder.zlibsettings, data, chunkLength);
+ if(state->error) break;
+ }
+ }
+ /*international text chunk (iTXt)*/
+ else if(lodepng_chunk_type_equals(chunk, "iTXt"))
+ {
+ if(state->decoder.read_text_chunks)
+ {
+ state->error = readChunk_iTXt(&state->info_png, &state->decoder.zlibsettings, data, chunkLength);
+ if(state->error) break;
+ }
+ }
+ else if(lodepng_chunk_type_equals(chunk, "tIME"))
+ {
+ state->error = readChunk_tIME(&state->info_png, data, chunkLength);
+ if(state->error) break;
+ }
+ else if(lodepng_chunk_type_equals(chunk, "pHYs"))
+ {
+ state->error = readChunk_pHYs(&state->info_png, data, chunkLength);
+ if(state->error) break;
+ }
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+ else /*it's not an implemented chunk type, so ignore it: skip over the data*/
+ {
+ /*error: unknown critical chunk (5th bit of first byte of chunk type is 0)*/
+ if(!lodepng_chunk_ancillary(chunk)) CERROR_BREAK(state->error, 69);
+
+ unknown = 1;
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ if(state->decoder.remember_unknown_chunks)
+ {
+ state->error = lodepng_chunk_append(&state->info_png.unknown_chunks_data[critical_pos - 1],
+ &state->info_png.unknown_chunks_size[critical_pos - 1], chunk);
+ if(state->error) break;
+ }
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+ }
+
+ if(!state->decoder.ignore_crc && !unknown) /*check CRC if wanted, only on known chunk types*/
+ {
+ if(lodepng_chunk_check_crc(chunk)) CERROR_BREAK(state->error, 57); /*invalid CRC*/
+ }
+
+ if(!IEND) chunk = lodepng_chunk_next_const(chunk);
+ }
+
+ ucvector_init(&scanlines);
+ if(!state->error)
+ {
+ /*maximum final image length is already reserved in the vector's length - this is not really necessary*/
+ if(!ucvector_resize(&scanlines, lodepng_get_raw_size(*w, *h, &state->info_png.color) + *h))
+ {
+ state->error = 83; /*alloc fail*/
+ }
+ }
+ if(!state->error)
+ {
+ /*decompress with the Zlib decompressor*/
+ state->error = zlib_decompress(&scanlines.data, &scanlines.size, idat.data,
+ idat.size, &state->decoder.zlibsettings);
+ }
+ ucvector_cleanup(&idat);
+
+ if(!state->error)
+ {
+ ucvector outv;
+ ucvector_init(&outv);
+ if(!ucvector_resizev(&outv,
+ lodepng_get_raw_size(*w, *h, &state->info_png.color), 0)) state->error = 83; /*alloc fail*/
+ if(!state->error) state->error = postProcessScanlines(outv.data, scanlines.data, *w, *h, &state->info_png);
+ *out = outv.data;
+ }
+ ucvector_cleanup(&scanlines);
+}
+
+unsigned lodepng_decode(unsigned char** out, unsigned* w, unsigned* h,
+ LodePNGState* state,
+ const unsigned char* in, size_t insize)
+{
+ *out = 0;
+ decodeGeneric(out, w, h, state, in, insize);
+ if(state->error) return state->error;
+ if(!state->decoder.color_convert || lodepng_color_mode_equal(&state->info_raw, &state->info_png.color))
+ {
+ /*same color type, no copying or converting of data needed*/
+ /*store the info_png color settings on the info_raw so that the info_raw still reflects what colortype
+ the raw image has to the end user*/
+ if(!state->decoder.color_convert)
+ {
+ state->error = lodepng_color_mode_copy(&state->info_raw, &state->info_png.color);
+ if(state->error) return state->error;
+ }
+ }
+ else
+ {
+ /*color conversion needed; sort of copy of the data*/
+ unsigned char* data = *out;
+ size_t outsize;
+
+ /*TODO: check if this works according to the statement in the documentation: "The converter can convert
+ from greyscale input color type, to 8-bit greyscale or greyscale with alpha"*/
+ if(!(state->info_raw.colortype == LCT_RGB || state->info_raw.colortype == LCT_RGBA)
+ && !(state->info_raw.bitdepth == 8))
+ {
+ return 56; /*unsupported color mode conversion*/
+ }
+
+ outsize = lodepng_get_raw_size(*w, *h, &state->info_raw);
+ *out = (unsigned char*)lodepng_malloc(outsize);
+ if(!(*out))
+ {
+ state->error = 83; /*alloc fail*/
+ }
+ else state->error = lodepng_convert(*out, data, &state->info_raw, &state->info_png.color, *w, *h, state->decoder.fix_png);
+ lodepng_free(data);
+ }
+ return state->error;
+}
+
+unsigned lodepng_decode_memory(unsigned char** out, unsigned* w, unsigned* h, const unsigned char* in,
+ size_t insize, LodePNGColorType colortype, unsigned bitdepth)
+{
+ unsigned error;
+ LodePNGState state;
+ lodepng_state_init(&state);
+ state.info_raw.colortype = colortype;
+ state.info_raw.bitdepth = bitdepth;
+ error = lodepng_decode(out, w, h, &state, in, insize);
+ lodepng_state_cleanup(&state);
+ return error;
+}
+
+unsigned lodepng_decode32(unsigned char** out, unsigned* w, unsigned* h, const unsigned char* in, size_t insize)
+{
+ return lodepng_decode_memory(out, w, h, in, insize, LCT_RGBA, 8);
+}
+
+unsigned lodepng_decode24(unsigned char** out, unsigned* w, unsigned* h, const unsigned char* in, size_t insize)
+{
+ return lodepng_decode_memory(out, w, h, in, insize, LCT_RGB, 8);
+}
+
+#ifdef LODEPNG_COMPILE_DISK
+unsigned lodepng_decode_file(unsigned char** out, unsigned* w, unsigned* h, const char* filename,
+ LodePNGColorType colortype, unsigned bitdepth)
+{
+ unsigned char* buffer;
+ size_t buffersize;
+ unsigned error;
+ error = lodepng_load_file(&buffer, &buffersize, filename);
+ if(!error) error = lodepng_decode_memory(out, w, h, buffer, buffersize, colortype, bitdepth);
+ lodepng_free(buffer);
+ return error;
+}
+
+unsigned lodepng_decode32_file(unsigned char** out, unsigned* w, unsigned* h, const char* filename)
+{
+ return lodepng_decode_file(out, w, h, filename, LCT_RGBA, 8);
+}
+
+unsigned lodepng_decode24_file(unsigned char** out, unsigned* w, unsigned* h, const char* filename)
+{
+ return lodepng_decode_file(out, w, h, filename, LCT_RGB, 8);
+}
+#endif /*LODEPNG_COMPILE_DISK*/
+
+void lodepng_decoder_settings_init(LodePNGDecoderSettings* settings)
+{
+ settings->color_convert = 1;
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ settings->read_text_chunks = 1;
+ settings->remember_unknown_chunks = 0;
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+ settings->ignore_crc = 0;
+ settings->fix_png = 0;
+ lodepng_decompress_settings_init(&settings->zlibsettings);
+}
+
+#endif /*LODEPNG_COMPILE_DECODER*/
+
+#if defined(LODEPNG_COMPILE_DECODER) || defined(LODEPNG_COMPILE_ENCODER)
+
+void lodepng_state_init(LodePNGState* state)
+{
+#ifdef LODEPNG_COMPILE_DECODER
+ lodepng_decoder_settings_init(&state->decoder);
+#endif /*LODEPNG_COMPILE_DECODER*/
+#ifdef LODEPNG_COMPILE_ENCODER
+ lodepng_encoder_settings_init(&state->encoder);
+#endif /*LODEPNG_COMPILE_ENCODER*/
+ lodepng_color_mode_init(&state->info_raw);
+ lodepng_info_init(&state->info_png);
+ state->error = 1;
+}
+
+void lodepng_state_cleanup(LodePNGState* state)
+{
+ lodepng_color_mode_cleanup(&state->info_raw);
+ lodepng_info_cleanup(&state->info_png);
+}
+
+void lodepng_state_copy(LodePNGState* dest, const LodePNGState* source)
+{
+ lodepng_state_cleanup(dest);
+ *dest = *source;
+ lodepng_color_mode_init(&dest->info_raw);
+ lodepng_info_init(&dest->info_png);
+ dest->error = lodepng_color_mode_copy(&dest->info_raw, &source->info_raw); if(dest->error) return;
+ dest->error = lodepng_info_copy(&dest->info_png, &source->info_png); if(dest->error) return;
+}
+
+#endif /* defined(LODEPNG_COMPILE_DECODER) || defined(LODEPNG_COMPILE_ENCODER) */
+
+#ifdef LODEPNG_COMPILE_ENCODER
+
+/* ////////////////////////////////////////////////////////////////////////// */
+/* / PNG Encoder / */
+/* ////////////////////////////////////////////////////////////////////////// */
+
+/*chunkName must be string of 4 characters*/
+static unsigned addChunk(ucvector* out, const char* chunkName, const unsigned char* data, size_t length)
+{
+ CERROR_TRY_RETURN(lodepng_chunk_create(&out->data, &out->size, (unsigned)length, chunkName, data));
+ out->allocsize = out->size; /*fix the allocsize again*/
+ return 0;
+}
+
+static void writeSignature(ucvector* out)
+{
+ /*8 bytes PNG signature, aka the magic bytes*/
+ ucvector_push_back(out, 137);
+ ucvector_push_back(out, 80);
+ ucvector_push_back(out, 78);
+ ucvector_push_back(out, 71);
+ ucvector_push_back(out, 13);
+ ucvector_push_back(out, 10);
+ ucvector_push_back(out, 26);
+ ucvector_push_back(out, 10);
+}
+
+static unsigned addChunk_IHDR(ucvector* out, unsigned w, unsigned h,
+ LodePNGColorType colortype, unsigned bitdepth, unsigned interlace_method)
+{
+ unsigned error = 0;
+ ucvector header;
+ ucvector_init(&header);
+
+ lodepng_add32bitInt(&header, w); /*width*/
+ lodepng_add32bitInt(&header, h); /*height*/
+ ucvector_push_back(&header, (unsigned char)bitdepth); /*bit depth*/
+ ucvector_push_back(&header, (unsigned char)colortype); /*color type*/
+ ucvector_push_back(&header, 0); /*compression method*/
+ ucvector_push_back(&header, 0); /*filter method*/
+ ucvector_push_back(&header, interlace_method); /*interlace method*/
+
+ error = addChunk(out, "IHDR", header.data, header.size);
+ ucvector_cleanup(&header);
+
+ return error;
+}
+
+static unsigned addChunk_PLTE(ucvector* out, const LodePNGColorMode* info)
+{
+ unsigned error = 0;
+ size_t i;
+ ucvector PLTE;
+ ucvector_init(&PLTE);
+ for(i = 0; i < info->palettesize * 4; i++)
+ {
+ /*add all channels except alpha channel*/
+ if(i % 4 != 3) ucvector_push_back(&PLTE, info->palette[i]);
+ }
+ error = addChunk(out, "PLTE", PLTE.data, PLTE.size);
+ ucvector_cleanup(&PLTE);
+
+ return error;
+}
+
+static unsigned addChunk_tRNS(ucvector* out, const LodePNGColorMode* info)
+{
+ unsigned error = 0;
+ size_t i;
+ ucvector tRNS;
+ ucvector_init(&tRNS);
+ if(info->colortype == LCT_PALETTE)
+ {
+ size_t amount = info->palettesize;
+ /*the tail of palette values that all have 255 as alpha, does not have to be encoded*/
+ for(i = info->palettesize; i > 0; i--)
+ {
+ if(info->palette[4 * (i - 1) + 3] == 255) amount--;
+ else break;
+ }
+ /*add only alpha channel*/
+ for(i = 0; i < amount; i++) ucvector_push_back(&tRNS, info->palette[4 * i + 3]);
+ }
+ else if(info->colortype == LCT_GREY)
+ {
+ if(info->key_defined)
+ {
+ ucvector_push_back(&tRNS, (unsigned char)(info->key_r / 256));
+ ucvector_push_back(&tRNS, (unsigned char)(info->key_r % 256));
+ }
+ }
+ else if(info->colortype == LCT_RGB)
+ {
+ if(info->key_defined)
+ {
+ ucvector_push_back(&tRNS, (unsigned char)(info->key_r / 256));
+ ucvector_push_back(&tRNS, (unsigned char)(info->key_r % 256));
+ ucvector_push_back(&tRNS, (unsigned char)(info->key_g / 256));
+ ucvector_push_back(&tRNS, (unsigned char)(info->key_g % 256));
+ ucvector_push_back(&tRNS, (unsigned char)(info->key_b / 256));
+ ucvector_push_back(&tRNS, (unsigned char)(info->key_b % 256));
+ }
+ }
+
+ error = addChunk(out, "tRNS", tRNS.data, tRNS.size);
+ ucvector_cleanup(&tRNS);
+
+ return error;
+}
+
+static unsigned addChunk_IDAT(ucvector* out, const unsigned char* data, size_t datasize,
+ LodePNGCompressSettings* zlibsettings)
+{
+ ucvector zlibdata;
+ unsigned error = 0;
+
+ /*compress with the Zlib compressor*/
+ ucvector_init(&zlibdata);
+ error = zlib_compress(&zlibdata.data, &zlibdata.size, data, datasize, zlibsettings);
+ if(!error) error = addChunk(out, "IDAT", zlibdata.data, zlibdata.size);
+ ucvector_cleanup(&zlibdata);
+
+ return error;
+}
+
+static unsigned addChunk_IEND(ucvector* out)
+{
+ unsigned error = 0;
+ error = addChunk(out, "IEND", 0, 0);
+ return error;
+}
+
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+
+static unsigned addChunk_tEXt(ucvector* out, const char* keyword, const char* textstring)
+{
+ unsigned error = 0;
+ size_t i;
+ ucvector text;
+ ucvector_init(&text);
+ for(i = 0; keyword[i] != 0; i++) ucvector_push_back(&text, (unsigned char)keyword[i]);
+ if(i < 1 || i > 79) return 89; /*error: invalid keyword size*/
+ ucvector_push_back(&text, 0); /*0 termination char*/
+ for(i = 0; textstring[i] != 0; i++) ucvector_push_back(&text, (unsigned char)textstring[i]);
+ error = addChunk(out, "tEXt", text.data, text.size);
+ ucvector_cleanup(&text);
+
+ return error;
+}
+
+static unsigned addChunk_zTXt(ucvector* out, const char* keyword, const char* textstring,
+ LodePNGCompressSettings* zlibsettings)
+{
+ unsigned error = 0;
+ ucvector data, compressed;
+ size_t i, textsize = strlen(textstring);
+
+ ucvector_init(&data);
+ ucvector_init(&compressed);
+ for(i = 0; keyword[i] != 0; i++) ucvector_push_back(&data, (unsigned char)keyword[i]);
+ if(i < 1 || i > 79) return 89; /*error: invalid keyword size*/
+ ucvector_push_back(&data, 0); /*0 termination char*/
+ ucvector_push_back(&data, 0); /*compression method: 0*/
+
+ error = zlib_compress(&compressed.data, &compressed.size,
+ (unsigned char*)textstring, textsize, zlibsettings);
+ if(!error)
+ {
+ for(i = 0; i < compressed.size; i++) ucvector_push_back(&data, compressed.data[i]);
+ error = addChunk(out, "zTXt", data.data, data.size);
+ }
+
+ ucvector_cleanup(&compressed);
+ ucvector_cleanup(&data);
+ return error;
+}
+
+static unsigned addChunk_iTXt(ucvector* out, unsigned compressed, const char* keyword, const char* langtag,
+ const char* transkey, const char* textstring, LodePNGCompressSettings* zlibsettings)
+{
+ unsigned error = 0;
+ ucvector data;
+ size_t i, textsize = strlen(textstring);
+
+ ucvector_init(&data);
+
+ for(i = 0; keyword[i] != 0; i++) ucvector_push_back(&data, (unsigned char)keyword[i]);
+ if(i < 1 || i > 79) return 89; /*error: invalid keyword size*/
+ ucvector_push_back(&data, 0); /*null termination char*/
+ ucvector_push_back(&data, compressed ? 1 : 0); /*compression flag*/
+ ucvector_push_back(&data, 0); /*compression method*/
+ for(i = 0; langtag[i] != 0; i++) ucvector_push_back(&data, (unsigned char)langtag[i]);
+ ucvector_push_back(&data, 0); /*null termination char*/
+ for(i = 0; transkey[i] != 0; i++) ucvector_push_back(&data, (unsigned char)transkey[i]);
+ ucvector_push_back(&data, 0); /*null termination char*/
+
+ if(compressed)
+ {
+ ucvector compressed_data;
+ ucvector_init(&compressed_data);
+ error = zlib_compress(&compressed_data.data, &compressed_data.size,
+ (unsigned char*)textstring, textsize, zlibsettings);
+ if(!error)
+ {
+ for(i = 0; i < compressed_data.size; i++) ucvector_push_back(&data, compressed_data.data[i]);
+ }
+ ucvector_cleanup(&compressed_data);
+ }
+ else /*not compressed*/
+ {
+ for(i = 0; textstring[i] != 0; i++) ucvector_push_back(&data, (unsigned char)textstring[i]);
+ }
+
+ if(!error) error = addChunk(out, "iTXt", data.data, data.size);
+ ucvector_cleanup(&data);
+ return error;
+}
+
+static unsigned addChunk_bKGD(ucvector* out, const LodePNGInfo* info)
+{
+ unsigned error = 0;
+ ucvector bKGD;
+ ucvector_init(&bKGD);
+ if(info->color.colortype == LCT_GREY || info->color.colortype == LCT_GREY_ALPHA)
+ {
+ ucvector_push_back(&bKGD, (unsigned char)(info->background_r / 256));
+ ucvector_push_back(&bKGD, (unsigned char)(info->background_r % 256));
+ }
+ else if(info->color.colortype == LCT_RGB || info->color.colortype == LCT_RGBA)
+ {
+ ucvector_push_back(&bKGD, (unsigned char)(info->background_r / 256));
+ ucvector_push_back(&bKGD, (unsigned char)(info->background_r % 256));
+ ucvector_push_back(&bKGD, (unsigned char)(info->background_g / 256));
+ ucvector_push_back(&bKGD, (unsigned char)(info->background_g % 256));
+ ucvector_push_back(&bKGD, (unsigned char)(info->background_b / 256));
+ ucvector_push_back(&bKGD, (unsigned char)(info->background_b % 256));
+ }
+ else if(info->color.colortype == LCT_PALETTE)
+ {
+ ucvector_push_back(&bKGD, (unsigned char)(info->background_r % 256)); /*palette index*/
+ }
+
+ error = addChunk(out, "bKGD", bKGD.data, bKGD.size);
+ ucvector_cleanup(&bKGD);
+
+ return error;
+}
+
+static unsigned addChunk_tIME(ucvector* out, const LodePNGTime* time)
+{
+ unsigned error = 0;
+ unsigned char* data = (unsigned char*)lodepng_malloc(7);
+ if(!data) return 83; /*alloc fail*/
+ data[0] = (unsigned char)(time->year / 256);
+ data[1] = (unsigned char)(time->year % 256);
+ data[2] = time->month;
+ data[3] = time->day;
+ data[4] = time->hour;
+ data[5] = time->minute;
+ data[6] = time->second;
+ error = addChunk(out, "tIME", data, 7);
+ lodepng_free(data);
+ return error;
+}
+
+static unsigned addChunk_pHYs(ucvector* out, const LodePNGInfo* info)
+{
+ unsigned error = 0;
+ ucvector data;
+ ucvector_init(&data);
+
+ lodepng_add32bitInt(&data, info->phys_x);
+ lodepng_add32bitInt(&data, info->phys_y);
+ ucvector_push_back(&data, info->phys_unit);
+
+ error = addChunk(out, "pHYs", data.data, data.size);
+ ucvector_cleanup(&data);
+
+ return error;
+}
+
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+
+static void filterScanline(unsigned char* out, const unsigned char* scanline, const unsigned char* prevline,
+ size_t length, size_t bytewidth, unsigned char filterType)
+{
+ size_t i;
+ switch(filterType)
+ {
+ case 0: /*None*/
+ for(i = 0; i < length; i++) out[i] = scanline[i];
+ break;
+ case 1: /*Sub*/
+ if(prevline)
+ {
+ for(i = 0; i < bytewidth; i++) out[i] = scanline[i];
+ for(i = bytewidth; i < length; i++) out[i] = scanline[i] - scanline[i - bytewidth];
+ }
+ else
+ {
+ for(i = 0; i < bytewidth; i++) out[i] = scanline[i];
+ for(i = bytewidth; i < length; i++) out[i] = scanline[i] - scanline[i - bytewidth];
+ }
+ break;
+ case 2: /*Up*/
+ if(prevline)
+ {
+ for(i = 0; i < length; i++) out[i] = scanline[i] - prevline[i];
+ }
+ else
+ {
+ for(i = 0; i < length; i++) out[i] = scanline[i];
+ }
+ break;
+ case 3: /*Average*/
+ if(prevline)
+ {
+ for(i = 0; i < bytewidth; i++) out[i] = scanline[i] - prevline[i] / 2;
+ for(i = bytewidth; i < length; i++) out[i] = scanline[i] - ((scanline[i - bytewidth] + prevline[i]) / 2);
+ }
+ else
+ {
+ for(i = 0; i < bytewidth; i++) out[i] = scanline[i];
+ for(i = bytewidth; i < length; i++) out[i] = scanline[i] - scanline[i - bytewidth] / 2;
+ }
+ break;
+ case 4: /*Paeth*/
+ if(prevline)
+ {
+ /*paethPredictor(0, prevline[i], 0) is always prevline[i]*/
+ for(i = 0; i < bytewidth; i++) out[i] = (scanline[i] - prevline[i]);
+ for(i = bytewidth; i < length; i++)
+ {
+ out[i] = (scanline[i] - paethPredictor(scanline[i - bytewidth], prevline[i], prevline[i - bytewidth]));
+ }
+ }
+ else
+ {
+ for(i = 0; i < bytewidth; i++) out[i] = scanline[i];
+ /*paethPredictor(scanline[i - bytewidth], 0, 0) is always scanline[i - bytewidth]*/
+ for(i = bytewidth; i < length; i++) out[i] = (scanline[i] - scanline[i - bytewidth]);
+ }
+ break;
+ default: return; /*unexisting filter type given*/
+ }
+}
+
+/* log2 approximation. A slight bit faster than std::log. */
+static float flog2(float f)
+{
+ float result = 0;
+ while(f > 32) { result += 4; f /= 16; }
+ while(f > 2) { result++; f /= 2; }
+ return result + 1.442695f * (f * f * f / 3 - 3 * f * f / 2 + 3 * f - 1.83333f);
+}
+
+static unsigned filter(unsigned char* out, const unsigned char* in, unsigned w, unsigned h,
+ const LodePNGColorMode* info, const LodePNGEncoderSettings* settings)
+{
+ /*
+ For PNG filter method 0
+ out must be a buffer with as size: h + (w * h * bpp + 7) / 8, because there are
+ the scanlines with 1 extra byte per scanline
+ */
+
+ unsigned bpp = lodepng_get_bpp(info);
+ /*the width of a scanline in bytes, not including the filter type*/
+ size_t linebytes = (w * bpp + 7) / 8;
+ /*bytewidth is used for filtering, is 1 when bpp < 8, number of bytes per pixel otherwise*/
+ size_t bytewidth = (bpp + 7) / 8;
+ const unsigned char* prevline = 0;
+ unsigned x, y;
+ unsigned error = 0;
+ LodePNGFilterStrategy strategy = settings->filter_strategy;
+
+ /*
+ There is a heuristic called the minimum sum of absolute differences heuristic, suggested by the PNG standard:
+ * If the image type is Palette, or the bit depth is smaller than 8, then do not filter the image (i.e.
+ use fixed filtering, with the filter None).
+ * (The other case) If the image type is Grayscale or RGB (with or without Alpha), and the bit depth is
+ not smaller than 8, then use adaptive filtering heuristic as follows: independently for each row, apply
+ all five filters and select the filter that produces the smallest sum of absolute values per row.
+ This heuristic is used if filter strategy is LFS_MINSUM and filter_palette_zero is true.
+
+ If filter_palette_zero is true and filter_strategy is not LFS_MINSUM, the above heuristic is followed,
+ but for "the other case", whatever strategy filter_strategy is set to instead of the minimum sum
+ heuristic is used.
+ */
+ if(settings->filter_palette_zero &&
+ (info->colortype == LCT_PALETTE || info->bitdepth < 8)) strategy = LFS_ZERO;
+
+ if(bpp == 0) return 31; /*error: invalid color type*/
+
+ if(strategy == LFS_ZERO)
+ {
+ for(y = 0; y < h; y++)
+ {
+ size_t outindex = (1 + linebytes) * y; /*the extra filterbyte added to each row*/
+ size_t inindex = linebytes * y;
+ out[outindex] = 0; /*filter type byte*/
+ filterScanline(&out[outindex + 1], &in[inindex], prevline, linebytes, bytewidth, 0);
+ prevline = &in[inindex];
+ }
+ }
+ else if(strategy == LFS_MINSUM)
+ {
+ /*adaptive filtering*/
+ size_t sum[5];
+ ucvector attempt[5]; /*five filtering attempts, one for each filter type*/
+ size_t smallest = 0;
+ unsigned type, bestType = 0;
+
+ for(type = 0; type < 5; type++)
+ {
+ ucvector_init(&attempt[type]);
+ if(!ucvector_resize(&attempt[type], linebytes)) return 83; /*alloc fail*/
+ }
+
+ if(!error)
+ {
+ for(y = 0; y < h; y++)
+ {
+ /*try the 5 filter types*/
+ for(type = 0; type < 5; type++)
+ {
+ filterScanline(attempt[type].data, &in[y * linebytes], prevline, linebytes, bytewidth, type);
+
+ /*calculate the sum of the result*/
+ sum[type] = 0;
+ if(type == 0)
+ {
+ for(x = 0; x < linebytes; x++) sum[type] += (unsigned char)(attempt[type].data[x]);
+ }
+ else
+ {
+ for(x = 0; x < linebytes; x++)
+ {
+ /*For differences, each byte should be treated as signed, values above 127 are negative
+ (converted to signed char). Filtertype 0 isn't a difference though, so use unsigned there.
+ This means filtertype 0 is almost never chosen, but that is justified.*/
+ signed char s = (signed char)(attempt[type].data[x]);
+ sum[type] += s < 0 ? -s : s;
+ }
+ }
+
+ /*check if this is smallest sum (or if type == 0 it's the first case so always store the values)*/
+ if(type == 0 || sum[type] < smallest)
+ {
+ bestType = type;
+ smallest = sum[type];
+ }
+ }
+
+ prevline = &in[y * linebytes];
+
+ /*now fill the out values*/
+ out[y * (linebytes + 1)] = bestType; /*the first byte of a scanline will be the filter type*/
+ for(x = 0; x < linebytes; x++) out[y * (linebytes + 1) + 1 + x] = attempt[bestType].data[x];
+ }
+ }
+
+ for(type = 0; type < 5; type++) ucvector_cleanup(&attempt[type]);
+ }
+ else if(strategy == LFS_ENTROPY)
+ {
+ float sum[5];
+ ucvector attempt[5]; /*five filtering attempts, one for each filter type*/
+ float smallest = 0;
+ unsigned type, bestType = 0;
+ unsigned count[256];
+
+ for(type = 0; type < 5; type++)
+ {
+ ucvector_init(&attempt[type]);
+ if(!ucvector_resize(&attempt[type], linebytes)) return 83; /*alloc fail*/
+ }
+
+ for(y = 0; y < h; y++)
+ {
+ /*try the 5 filter types*/
+ for(type = 0; type < 5; type++)
+ {
+ filterScanline(attempt[type].data, &in[y * linebytes], prevline, linebytes, bytewidth, type);
+ for(x = 0; x < 256; x++) count[x] = 0;
+ for(x = 0; x < linebytes; x++) count[attempt[type].data[x]]++;
+ count[type]++; /*the filter type itself is part of the scanline*/
+ sum[type] = 0;
+ for(x = 0; x < 256; x++)
+ {
+ float p = count[x] / (float)(linebytes + 1);
+ sum[type] += count[x] == 0 ? 0 : flog2(1 / p) * p;
+ }
+ /*check if this is smallest sum (or if type == 0 it's the first case so always store the values)*/
+ if(type == 0 || sum[type] < smallest)
+ {
+ bestType = type;
+ smallest = sum[type];
+ }
+ }
+
+ prevline = &in[y * linebytes];
+
+ /*now fill the out values*/
+ out[y * (linebytes + 1)] = bestType; /*the first byte of a scanline will be the filter type*/
+ for(x = 0; x < linebytes; x++) out[y * (linebytes + 1) + 1 + x] = attempt[bestType].data[x];
+ }
+
+ for(type = 0; type < 5; type++) ucvector_cleanup(&attempt[type]);
+ }
+ else if(strategy == LFS_PREDEFINED)
+ {
+ for(y = 0; y < h; y++)
+ {
+ size_t outindex = (1 + linebytes) * y; /*the extra filterbyte added to each row*/
+ size_t inindex = linebytes * y;
+ unsigned type = settings->predefined_filters[y];
+ out[outindex] = type; /*filter type byte*/
+ filterScanline(&out[outindex + 1], &in[inindex], prevline, linebytes, bytewidth, type);
+ prevline = &in[inindex];
+ }
+ }
+ else if(strategy == LFS_BRUTE_FORCE)
+ {
+ /*brute force filter chooser.
+ deflate the scanline after every filter attempt to see which one deflates best.
+ This is very slow and gives only slightly smaller, sometimes even larger, result*/
+ size_t size[5];
+ ucvector attempt[5]; /*five filtering attempts, one for each filter type*/
+ size_t smallest = 0;
+ unsigned type = 0, bestType = 0;
+ unsigned char* dummy;
+ LodePNGCompressSettings zlibsettings = settings->zlibsettings;
+ /*use fixed tree on the attempts so that the tree is not adapted to the filtertype on purpose,
+ to simulate the true case where the tree is the same for the whole image. Sometimes it gives
+ better result with dynamic tree anyway. Using the fixed tree sometimes gives worse, but in rare
+ cases better compression. It does make this a bit less slow, so it's worth doing this.*/
+ zlibsettings.btype = 1;
+ /*a custom encoder likely doesn't read the btype setting and is optimized for complete PNG
+ images only, so disable it*/
+ zlibsettings.custom_zlib = 0;
+ zlibsettings.custom_deflate = 0;
+ for(type = 0; type < 5; type++)
+ {
+ ucvector_init(&attempt[type]);
+ ucvector_resize(&attempt[type], linebytes); /*todo: give error if resize failed*/
+ }
+ for(y = 0; y < h; y++) /*try the 5 filter types*/
+ {
+ for(type = 0; type < 5; type++)
+ {
+ unsigned testsize = attempt[type].size;
+ /*if(testsize > 8) testsize /= 8;*/ /*it already works good enough by testing a part of the row*/
+
+ filterScanline(attempt[type].data, &in[y * linebytes], prevline, linebytes, bytewidth, type);
+ size[type] = 0;
+ dummy = 0;
+ zlib_compress(&dummy, &size[type], attempt[type].data, testsize, &zlibsettings);
+ lodepng_free(dummy);
+ /*check if this is smallest size (or if type == 0 it's the first case so always store the values)*/
+ if(type == 0 || size[type] < smallest)
+ {
+ bestType = type;
+ smallest = size[type];
+ }
+ }
+ prevline = &in[y * linebytes];
+ out[y * (linebytes + 1)] = bestType; /*the first byte of a scanline will be the filter type*/
+ for(x = 0; x < linebytes; x++) out[y * (linebytes + 1) + 1 + x] = attempt[bestType].data[x];
+ }
+ for(type = 0; type < 5; type++) ucvector_cleanup(&attempt[type]);
+ }
+ else return 88; /* unknown filter strategy */
+
+ return error;
+}
+
+static void addPaddingBits(unsigned char* out, const unsigned char* in,
+ size_t olinebits, size_t ilinebits, unsigned h)
+{
+ /*The opposite of the removePaddingBits function
+ olinebits must be >= ilinebits*/
+ unsigned y;
+ size_t diff = olinebits - ilinebits;
+ size_t obp = 0, ibp = 0; /*bit pointers*/
+ for(y = 0; y < h; y++)
+ {
+ size_t x;
+ for(x = 0; x < ilinebits; x++)
+ {
+ unsigned char bit = readBitFromReversedStream(&ibp, in);
+ setBitOfReversedStream(&obp, out, bit);
+ }
+ /*obp += diff; --> no, fill in some value in the padding bits too, to avoid
+ "Use of uninitialised value of size ###" warning from valgrind*/
+ for(x = 0; x < diff; x++) setBitOfReversedStream(&obp, out, 0);
+ }
+}
+
+/*
+in: non-interlaced image with size w*h
+out: the same pixels, but re-ordered according to PNG's Adam7 interlacing, with
+ no padding bits between scanlines, but between reduced images so that each
+ reduced image starts at a byte.
+bpp: bits per pixel
+there are no padding bits, not between scanlines, not between reduced images
+in has the following size in bits: w * h * bpp.
+out is possibly bigger due to padding bits between reduced images
+NOTE: comments about padding bits are only relevant if bpp < 8
+*/
+static void Adam7_interlace(unsigned char* out, const unsigned char* in, unsigned w, unsigned h, unsigned bpp)
+{
+ unsigned passw[7], passh[7];
+ size_t filter_passstart[8], padded_passstart[8], passstart[8];
+ unsigned i;
+
+ Adam7_getpassvalues(passw, passh, filter_passstart, padded_passstart, passstart, w, h, bpp);
+
+ if(bpp >= 8)
+ {
+ for(i = 0; i < 7; i++)
+ {
+ unsigned x, y, b;
+ size_t bytewidth = bpp / 8;
+ for(y = 0; y < passh[i]; y++)
+ for(x = 0; x < passw[i]; x++)
+ {
+ size_t pixelinstart = ((ADAM7_IY[i] + y * ADAM7_DY[i]) * w + ADAM7_IX[i] + x * ADAM7_DX[i]) * bytewidth;
+ size_t pixeloutstart = passstart[i] + (y * passw[i] + x) * bytewidth;
+ for(b = 0; b < bytewidth; b++)
+ {
+ out[pixeloutstart + b] = in[pixelinstart + b];
+ }
+ }
+ }
+ }
+ else /*bpp < 8: Adam7 with pixels < 8 bit is a bit trickier: with bit pointers*/
+ {
+ for(i = 0; i < 7; i++)
+ {
+ unsigned x, y, b;
+ unsigned ilinebits = bpp * passw[i];
+ unsigned olinebits = bpp * w;
+ size_t obp, ibp; /*bit pointers (for out and in buffer)*/
+ for(y = 0; y < passh[i]; y++)
+ for(x = 0; x < passw[i]; x++)
+ {
+ ibp = (ADAM7_IY[i] + y * ADAM7_DY[i]) * olinebits + (ADAM7_IX[i] + x * ADAM7_DX[i]) * bpp;
+ obp = (8 * passstart[i]) + (y * ilinebits + x * bpp);
+ for(b = 0; b < bpp; b++)
+ {
+ unsigned char bit = readBitFromReversedStream(&ibp, in);
+ setBitOfReversedStream(&obp, out, bit);
+ }
+ }
+ }
+ }
+}
+
+/*out must be buffer big enough to contain uncompressed IDAT chunk data, and in must contain the full image.
+return value is error**/
+static unsigned preProcessScanlines(unsigned char** out, size_t* outsize, const unsigned char* in,
+ unsigned w, unsigned h,
+ const LodePNGInfo* info_png, const LodePNGEncoderSettings* settings)
+{
+ /*
+ This function converts the pure 2D image with the PNG's colortype, into filtered-padded-interlaced data. Steps:
+ *) if no Adam7: 1) add padding bits (= posible extra bits per scanline if bpp < 8) 2) filter
+ *) if adam7: 1) Adam7_interlace 2) 7x add padding bits 3) 7x filter
+ */
+ unsigned bpp = lodepng_get_bpp(&info_png->color);
+ unsigned error = 0;
+
+ if(info_png->interlace_method == 0)
+ {
+ *outsize = h + (h * ((w * bpp + 7) / 8)); /*image size plus an extra byte per scanline + possible padding bits*/
+ *out = (unsigned char*)lodepng_malloc(*outsize);
+ if(!(*out) && (*outsize)) error = 83; /*alloc fail*/
+
+ if(!error)
+ {
+ /*non multiple of 8 bits per scanline, padding bits needed per scanline*/
+ if(bpp < 8 && w * bpp != ((w * bpp + 7) / 8) * 8)
+ {
+ unsigned char* padded = (unsigned char*)lodepng_malloc(h * ((w * bpp + 7) / 8));
+ if(!padded) error = 83; /*alloc fail*/
+ if(!error)
+ {
+ addPaddingBits(padded, in, ((w * bpp + 7) / 8) * 8, w * bpp, h);
+ error = filter(*out, padded, w, h, &info_png->color, settings);
+ }
+ lodepng_free(padded);
+ }
+ else
+ {
+ /*we can immediatly filter into the out buffer, no other steps needed*/
+ error = filter(*out, in, w, h, &info_png->color, settings);
+ }
+ }
+ }
+ else /*interlace_method is 1 (Adam7)*/
+ {
+ unsigned passw[7], passh[7];
+ size_t filter_passstart[8], padded_passstart[8], passstart[8];
+ unsigned char* adam7;
+
+ Adam7_getpassvalues(passw, passh, filter_passstart, padded_passstart, passstart, w, h, bpp);
+
+ *outsize = filter_passstart[7]; /*image size plus an extra byte per scanline + possible padding bits*/
+ *out = (unsigned char*)lodepng_malloc(*outsize);
+ if(!(*out)) error = 83; /*alloc fail*/
+
+ adam7 = (unsigned char*)lodepng_malloc(passstart[7]);
+ if(!adam7 && passstart[7]) error = 83; /*alloc fail*/
+
+ if(!error)
+ {
+ unsigned i;
+
+ Adam7_interlace(adam7, in, w, h, bpp);
+ for(i = 0; i < 7; i++)
+ {
+ if(bpp < 8)
+ {
+ unsigned char* padded = (unsigned char*)lodepng_malloc(padded_passstart[i + 1] - padded_passstart[i]);
+ if(!padded) ERROR_BREAK(83); /*alloc fail*/
+ addPaddingBits(padded, &adam7[passstart[i]],
+ ((passw[i] * bpp + 7) / 8) * 8, passw[i] * bpp, passh[i]);
+ error = filter(&(*out)[filter_passstart[i]], padded,
+ passw[i], passh[i], &info_png->color, settings);
+ lodepng_free(padded);
+ }
+ else
+ {
+ error = filter(&(*out)[filter_passstart[i]], &adam7[padded_passstart[i]],
+ passw[i], passh[i], &info_png->color, settings);
+ }
+
+ if(error) break;
+ }
+ }
+
+ lodepng_free(adam7);
+ }
+
+ return error;
+}
+
+/*
+palette must have 4 * palettesize bytes allocated, and given in format RGBARGBARGBARGBA...
+returns 0 if the palette is opaque,
+returns 1 if the palette has a single color with alpha 0 ==> color key
+returns 2 if the palette is semi-translucent.
+*/
+static unsigned getPaletteTranslucency(const unsigned char* palette, size_t palettesize)
+{
+ size_t i, key = 0;
+ unsigned r = 0, g = 0, b = 0; /*the value of the color with alpha 0, so long as color keying is possible*/
+ for(i = 0; i < palettesize; i++)
+ {
+ if(!key && palette[4 * i + 3] == 0)
+ {
+ r = palette[4 * i + 0]; g = palette[4 * i + 1]; b = palette[4 * i + 2];
+ key = 1;
+ i = (size_t)(-1); /*restart from beginning, to detect earlier opaque colors with key's value*/
+ }
+ else if(palette[4 * i + 3] != 255) return 2;
+ /*when key, no opaque RGB may have key's RGB*/
+ else if(key && r == palette[i * 4 + 0] && g == palette[i * 4 + 1] && b == palette[i * 4 + 2]) return 2;
+ }
+ return key;
+}
+
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+static unsigned addUnknownChunks(ucvector* out, unsigned char* data, size_t datasize)
+{
+ unsigned char* inchunk = data;
+ while((size_t)(inchunk - data) < datasize)
+ {
+ CERROR_TRY_RETURN(lodepng_chunk_append(&out->data, &out->size, inchunk));
+ out->allocsize = out->size; /*fix the allocsize again*/
+ inchunk = lodepng_chunk_next(inchunk);
+ }
+ return 0;
+}
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+
+unsigned lodepng_encode(unsigned char** out, size_t* outsize,
+ const unsigned char* image, unsigned w, unsigned h,
+ LodePNGState* state)
+{
+ LodePNGInfo info;
+ ucvector outv;
+ unsigned char* data = 0; /*uncompressed version of the IDAT chunk data*/
+ size_t datasize = 0;
+
+ /*provide some proper output values if error will happen*/
+ *out = 0;
+ *outsize = 0;
+ state->error = 0;
+
+ lodepng_info_init(&info);
+ lodepng_info_copy(&info, &state->info_png);
+
+ if((info.color.colortype == LCT_PALETTE || state->encoder.force_palette)
+ && (info.color.palettesize == 0 || info.color.palettesize > 256))
+ {
+ state->error = 68; /*invalid palette size, it is only allowed to be 1-256*/
+ return state->error;
+ }
+
+ if(state->encoder.auto_convert != LAC_NO)
+ {
+ state->error = lodepng_auto_choose_color(&info.color, image, w, h, &state->info_raw,
+ state->encoder.auto_convert);
+ }
+ if(state->error) return state->error;
+
+ if(state->encoder.zlibsettings.btype > 2)
+ {
+ CERROR_RETURN_ERROR(state->error, 61); /*error: unexisting btype*/
+ }
+ if(state->info_png.interlace_method > 1)
+ {
+ CERROR_RETURN_ERROR(state->error, 71); /*error: unexisting interlace mode*/
+ }
+
+ state->error = checkColorValidity(info.color.colortype, info.color.bitdepth);
+ if(state->error) return state->error; /*error: unexisting color type given*/
+ state->error = checkColorValidity(state->info_raw.colortype, state->info_raw.bitdepth);
+ if(state->error) return state->error; /*error: unexisting color type given*/
+
+ if(!lodepng_color_mode_equal(&state->info_raw, &info.color))
+ {
+ unsigned char* converted;
+ size_t size = (w * h * lodepng_get_bpp(&info.color) + 7) / 8;
+
+ converted = (unsigned char*)lodepng_malloc(size);
+ if(!converted && size) state->error = 83; /*alloc fail*/
+ if(!state->error)
+ {
+ state->error = lodepng_convert(converted, image, &info.color, &state->info_raw, w, h, 0 /*fix_png*/);
+ }
+ if(!state->error) preProcessScanlines(&data, &datasize, converted, w, h, &info, &state->encoder);
+ lodepng_free(converted);
+ }
+ else preProcessScanlines(&data, &datasize, image, w, h, &info, &state->encoder);
+
+ ucvector_init(&outv);
+ while(!state->error) /*while only executed once, to break on error*/
+ {
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ size_t i;
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+ /*write signature and chunks*/
+ writeSignature(&outv);
+ /*IHDR*/
+ addChunk_IHDR(&outv, w, h, info.color.colortype, info.color.bitdepth, info.interlace_method);
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ /*unknown chunks between IHDR and PLTE*/
+ if(info.unknown_chunks_data[0])
+ {
+ state->error = addUnknownChunks(&outv, info.unknown_chunks_data[0], info.unknown_chunks_size[0]);
+ if(state->error) break;
+ }
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+ /*PLTE*/
+ if(info.color.colortype == LCT_PALETTE)
+ {
+ addChunk_PLTE(&outv, &info.color);
+ }
+ if(state->encoder.force_palette && (info.color.colortype == LCT_RGB || info.color.colortype == LCT_RGBA))
+ {
+ addChunk_PLTE(&outv, &info.color);
+ }
+ /*tRNS*/
+ if(info.color.colortype == LCT_PALETTE && getPaletteTranslucency(info.color.palette, info.color.palettesize) != 0)
+ {
+ addChunk_tRNS(&outv, &info.color);
+ }
+ if((info.color.colortype == LCT_GREY || info.color.colortype == LCT_RGB) && info.color.key_defined)
+ {
+ addChunk_tRNS(&outv, &info.color);
+ }
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ /*bKGD (must come between PLTE and the IDAt chunks*/
+ if(info.background_defined) addChunk_bKGD(&outv, &info);
+ /*pHYs (must come before the IDAT chunks)*/
+ if(info.phys_defined) addChunk_pHYs(&outv, &info);
+
+ /*unknown chunks between PLTE and IDAT*/
+ if(info.unknown_chunks_data[1])
+ {
+ state->error = addUnknownChunks(&outv, info.unknown_chunks_data[1], info.unknown_chunks_size[1]);
+ if(state->error) break;
+ }
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+ /*IDAT (multiple IDAT chunks must be consecutive)*/
+ state->error = addChunk_IDAT(&outv, data, datasize, &state->encoder.zlibsettings);
+ if(state->error) break;
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ /*tIME*/
+ if(info.time_defined) addChunk_tIME(&outv, &info.time);
+ /*tEXt and/or zTXt*/
+ for(i = 0; i < info.text_num; i++)
+ {
+ if(strlen(info.text_keys[i]) > 79)
+ {
+ state->error = 66; /*text chunk too large*/
+ break;
+ }
+ if(strlen(info.text_keys[i]) < 1)
+ {
+ state->error = 67; /*text chunk too small*/
+ break;
+ }
+ if(state->encoder.text_compression)
+ {
+ addChunk_zTXt(&outv, info.text_keys[i], info.text_strings[i], &state->encoder.zlibsettings);
+ }
+ else
+ {
+ addChunk_tEXt(&outv, info.text_keys[i], info.text_strings[i]);
+ }
+ }
+ /*LodePNG version id in text chunk*/
+ if(state->encoder.add_id)
+ {
+ unsigned alread_added_id_text = 0;
+ for(i = 0; i < info.text_num; i++)
+ {
+ if(!strcmp(info.text_keys[i], "LodePNG"))
+ {
+ alread_added_id_text = 1;
+ break;
+ }
+ }
+ if(alread_added_id_text == 0)
+ {
+ addChunk_tEXt(&outv, "LodePNG", VERSION_STRING); /*it's shorter as tEXt than as zTXt chunk*/
+ }
+ }
+ /*iTXt*/
+ for(i = 0; i < info.itext_num; i++)
+ {
+ if(strlen(info.itext_keys[i]) > 79)
+ {
+ state->error = 66; /*text chunk too large*/
+ break;
+ }
+ if(strlen(info.itext_keys[i]) < 1)
+ {
+ state->error = 67; /*text chunk too small*/
+ break;
+ }
+ addChunk_iTXt(&outv, state->encoder.text_compression,
+ info.itext_keys[i], info.itext_langtags[i], info.itext_transkeys[i], info.itext_strings[i],
+ &state->encoder.zlibsettings);
+ }
+
+ /*unknown chunks between IDAT and IEND*/
+ if(info.unknown_chunks_data[2])
+ {
+ state->error = addUnknownChunks(&outv, info.unknown_chunks_data[2], info.unknown_chunks_size[2]);
+ if(state->error) break;
+ }
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+ addChunk_IEND(&outv);
+
+ break; /*this isn't really a while loop; no error happened so break out now!*/
+ }
+
+ lodepng_info_cleanup(&info);
+ lodepng_free(data);
+ /*instead of cleaning the vector up, give it to the output*/
+ *out = outv.data;
+ *outsize = outv.size;
+
+ return state->error;
+}
+
+unsigned lodepng_encode_memory(unsigned char** out, size_t* outsize, const unsigned char* image,
+ unsigned w, unsigned h, LodePNGColorType colortype, unsigned bitdepth)
+{
+ unsigned error;
+ LodePNGState state;
+ lodepng_state_init(&state);
+ state.info_raw.colortype = colortype;
+ state.info_raw.bitdepth = bitdepth;
+ state.info_png.color.colortype = colortype;
+ state.info_png.color.bitdepth = bitdepth;
+ lodepng_encode(out, outsize, image, w, h, &state);
+ error = state.error;
+ lodepng_state_cleanup(&state);
+ return error;
+}
+
+unsigned lodepng_encode32(unsigned char** out, size_t* outsize, const unsigned char* image, unsigned w, unsigned h)
+{
+ return lodepng_encode_memory(out, outsize, image, w, h, LCT_RGBA, 8);
+}
+
+unsigned lodepng_encode24(unsigned char** out, size_t* outsize, const unsigned char* image, unsigned w, unsigned h)
+{
+ return lodepng_encode_memory(out, outsize, image, w, h, LCT_RGB, 8);
+}
+
+#ifdef LODEPNG_COMPILE_DISK
+unsigned lodepng_encode_file(const char* filename, const unsigned char* image, unsigned w, unsigned h,
+ LodePNGColorType colortype, unsigned bitdepth)
+{
+ unsigned char* buffer;
+ size_t buffersize;
+ unsigned error = lodepng_encode_memory(&buffer, &buffersize, image, w, h, colortype, bitdepth);
+ if(!error) error = lodepng_save_file(buffer, buffersize, filename);
+ lodepng_free(buffer);
+ return error;
+}
+
+unsigned lodepng_encode32_file(const char* filename, const unsigned char* image, unsigned w, unsigned h)
+{
+ return lodepng_encode_file(filename, image, w, h, LCT_RGBA, 8);
+}
+
+unsigned lodepng_encode24_file(const char* filename, const unsigned char* image, unsigned w, unsigned h)
+{
+ return lodepng_encode_file(filename, image, w, h, LCT_RGB, 8);
+}
+#endif /*LODEPNG_COMPILE_DISK*/
+
+void lodepng_encoder_settings_init(LodePNGEncoderSettings* settings)
+{
+ lodepng_compress_settings_init(&settings->zlibsettings);
+ settings->filter_palette_zero = 1;
+ settings->filter_strategy = LFS_MINSUM;
+ settings->auto_convert = LAC_AUTO;
+ settings->force_palette = 0;
+ settings->predefined_filters = 0;
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ settings->add_id = 0;
+ settings->text_compression = 1;
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+}
+
+#endif /*LODEPNG_COMPILE_ENCODER*/
+#endif /*LODEPNG_COMPILE_PNG*/
+
+#ifdef LODEPNG_COMPILE_ERROR_TEXT
+/*
+This returns the description of a numerical error code in English. This is also
+the documentation of all the error codes.
+*/
+const char* lodepng_error_text(unsigned code)
+{
+ switch(code)
+ {
+ case 0: return "no error, everything went ok";
+ case 1: return "nothing done yet"; /*the Encoder/Decoder has done nothing yet, error checking makes no sense yet*/
+ case 10: return "end of input memory reached without huffman end code"; /*while huffman decoding*/
+ case 11: return "error in code tree made it jump outside of huffman tree"; /*while huffman decoding*/
+ case 13: return "problem while processing dynamic deflate block";
+ case 14: return "problem while processing dynamic deflate block";
+ case 15: return "problem while processing dynamic deflate block";
+ case 16: return "unexisting code while processing dynamic deflate block";
+ case 17: return "end of out buffer memory reached while inflating";
+ case 18: return "invalid distance code while inflating";
+ case 19: return "end of out buffer memory reached while inflating";
+ case 20: return "invalid deflate block BTYPE encountered while decoding";
+ case 21: return "NLEN is not ones complement of LEN in a deflate block";
+ /*end of out buffer memory reached while inflating:
+ This can happen if the inflated deflate data is longer than the amount of bytes required to fill up
+ all the pixels of the image, given the color depth and image dimensions. Something that doesn't
+ happen in a normal, well encoded, PNG image.*/
+ case 22: return "end of out buffer memory reached while inflating";
+ case 23: return "end of in buffer memory reached while inflating";
+ case 24: return "invalid FCHECK in zlib header";
+ case 25: return "invalid compression method in zlib header";
+ case 26: return "FDICT encountered in zlib header while it's not used for PNG";
+ case 27: return "PNG file is smaller than a PNG header";
+ /*Checks the magic file header, the first 8 bytes of the PNG file*/
+ case 28: return "incorrect PNG signature, it's no PNG or corrupted";
+ case 29: return "first chunk is not the header chunk";
+ case 30: return "chunk length too large, chunk broken off at end of file";
+ case 31: return "illegal PNG color type or bpp";
+ case 32: return "illegal PNG compression method";
+ case 33: return "illegal PNG filter method";
+ case 34: return "illegal PNG interlace method";
+ case 35: return "chunk length of a chunk is too large or the chunk too small";
+ case 36: return "illegal PNG filter type encountered";
+ case 37: return "illegal bit depth for this color type given";
+ case 38: return "the palette is too big"; /*more than 256 colors*/
+ case 39: return "more palette alpha values given in tRNS chunk than there are colors in the palette";
+ case 40: return "tRNS chunk has wrong size for greyscale image";
+ case 41: return "tRNS chunk has wrong size for RGB image";
+ case 42: return "tRNS chunk appeared while it was not allowed for this color type";
+ case 43: return "bKGD chunk has wrong size for palette image";
+ case 44: return "bKGD chunk has wrong size for greyscale image";
+ case 45: return "bKGD chunk has wrong size for RGB image";
+ /*Is the palette too small?*/
+ case 46: return "a value in indexed image is larger than the palette size (bitdepth = 8)";
+ /*Is the palette too small?*/
+ case 47: return "a value in indexed image is larger than the palette size (bitdepth < 8)";
+ /*the input data is empty, maybe a PNG file doesn't exist or is in the wrong path*/
+ case 48: return "empty input or file doesn't exist";
+ case 49: return "jumped past memory while generating dynamic huffman tree";
+ case 50: return "jumped past memory while generating dynamic huffman tree";
+ case 51: return "jumped past memory while inflating huffman block";
+ case 52: return "jumped past memory while inflating";
+ case 53: return "size of zlib data too small";
+ case 54: return "repeat symbol in tree while there was no value symbol yet";
+ /*jumped past tree while generating huffman tree, this could be when the
+ tree will have more leaves than symbols after generating it out of the
+ given lenghts. They call this an oversubscribed dynamic bit lengths tree in zlib.*/
+ case 55: return "jumped past tree while generating huffman tree";
+ case 56: return "given output image colortype or bitdepth not supported for color conversion";
+ case 57: return "invalid CRC encountered (checking CRC can be disabled)";
+ case 58: return "invalid ADLER32 encountered (checking ADLER32 can be disabled)";
+ case 59: return "requested color conversion not supported";
+ case 60: return "invalid window size given in the settings of the encoder (must be 0-32768)";
+ case 61: return "invalid BTYPE given in the settings of the encoder (only 0, 1 and 2 are allowed)";
+ /*LodePNG leaves the choice of RGB to greyscale conversion formula to the user.*/
+ case 62: return "conversion from color to greyscale not supported";
+ case 63: return "length of a chunk too long, max allowed for PNG is 2147483647 bytes per chunk"; /*(2^31-1)*/
+ /*this would result in the inability of a deflated block to ever contain an end code. It must be at least 1.*/
+ case 64: return "the length of the END symbol 256 in the Huffman tree is 0";
+ case 66: return "the length of a text chunk keyword given to the encoder is longer than the maximum of 79 bytes";
+ case 67: return "the length of a text chunk keyword given to the encoder is smaller than the minimum of 1 byte";
+ case 68: return "tried to encode a PLTE chunk with a palette that has less than 1 or more than 256 colors";
+ case 69: return "unknown chunk type with 'critical' flag encountered by the decoder";
+ case 71: return "unexisting interlace mode given to encoder (must be 0 or 1)";
+ case 72: return "while decoding, unexisting compression method encountering in zTXt or iTXt chunk (it must be 0)";
+ case 73: return "invalid tIME chunk size";
+ case 74: return "invalid pHYs chunk size";
+ /*length could be wrong, or data chopped off*/
+ case 75: return "no null termination char found while decoding text chunk";
+ case 76: return "iTXt chunk too short to contain required bytes";
+ case 77: return "integer overflow in buffer size";
+ case 78: return "failed to open file for reading"; /*file doesn't exist or couldn't be opened for reading*/
+ case 79: return "failed to open file for writing";
+ case 80: return "tried creating a tree of 0 symbols";
+ case 81: return "lazy matching at pos 0 is impossible";
+ case 82: return "color conversion to palette requested while a color isn't in palette";
+ case 83: return "memory allocation failed";
+ case 84: return "given image too small to contain all pixels to be encoded";
+ case 85: return "internal color conversion bug";
+ case 86: return "impossible offset in lz77 encoding (internal bug)";
+ case 87: return "must provide custom zlib function pointer if LODEPNG_COMPILE_ZLIB is not defined";
+ case 88: return "invalid filter strategy given for LodePNGEncoderSettings.filter_strategy";
+ case 89: return "text chunk keyword too short or long: must have size 1-79";
+ /*the windowsize in the LodePNGCompressSettings. Requiring POT(==> & instead of %) makes encoding 12% faster.*/
+ case 90: return "windowsize must be a power of two";
+ }
+ return "unknown error code";
+}
+#endif /*LODEPNG_COMPILE_ERROR_TEXT*/
+
+/* ////////////////////////////////////////////////////////////////////////// */
+/* ////////////////////////////////////////////////////////////////////////// */
+/* // C++ Wrapper // */
+/* ////////////////////////////////////////////////////////////////////////// */
+/* ////////////////////////////////////////////////////////////////////////// */
+
+#ifdef LODEPNG_COMPILE_CPP
+namespace lodepng
+{
+
+#ifdef LODEPNG_COMPILE_DISK
+void load_file(std::vector<unsigned char>& buffer, const std::string& filename)
+{
+ std::ifstream file(filename.c_str(), std::ios::in|std::ios::binary|std::ios::ate);
+
+ /*get filesize*/
+ std::streamsize size = 0;
+ if(file.seekg(0, std::ios::end).good()) size = file.tellg();
+ if(file.seekg(0, std::ios::beg).good()) size -= file.tellg();
+
+ /*read contents of the file into the vector*/
+ buffer.resize(size_t(size));
+ if(size > 0) file.read((char*)(&buffer[0]), size);
+}
+
+/*write given buffer to the file, overwriting the file, it doesn't append to it.*/
+void save_file(const std::vector<unsigned char>& buffer, const std::string& filename)
+{
+ std::ofstream file(filename.c_str(), std::ios::out|std::ios::binary);
+ file.write(buffer.empty() ? 0 : (char*)&buffer[0], std::streamsize(buffer.size()));
+}
+#endif //LODEPNG_COMPILE_DISK
+
+#ifdef LODEPNG_COMPILE_ZLIB
+#ifdef LODEPNG_COMPILE_DECODER
+unsigned decompress(std::vector<unsigned char>& out, const unsigned char* in, size_t insize,
+ const LodePNGDecompressSettings& settings)
+{
+ unsigned char* buffer = 0;
+ size_t buffersize = 0;
+ unsigned error = zlib_decompress(&buffer, &buffersize, in, insize, &settings);
+ if(buffer)
+ {
+ out.insert(out.end(), &buffer[0], &buffer[buffersize]);
+ lodepng_free(buffer);
+ }
+ return error;
+}
+
+unsigned decompress(std::vector<unsigned char>& out, const std::vector<unsigned char>& in,
+ const LodePNGDecompressSettings& settings)
+{
+ return decompress(out, in.empty() ? 0 : &in[0], in.size(), settings);
+}
+#endif //LODEPNG_COMPILE_DECODER
+
+#ifdef LODEPNG_COMPILE_ENCODER
+unsigned compress(std::vector<unsigned char>& out, const unsigned char* in, size_t insize,
+ const LodePNGCompressSettings& settings)
+{
+ unsigned char* buffer = 0;
+ size_t buffersize = 0;
+ unsigned error = zlib_compress(&buffer, &buffersize, in, insize, &settings);
+ if(buffer)
+ {
+ out.insert(out.end(), &buffer[0], &buffer[buffersize]);
+ lodepng_free(buffer);
+ }
+ return error;
+}
+
+unsigned compress(std::vector<unsigned char>& out, const std::vector<unsigned char>& in,
+ const LodePNGCompressSettings& settings)
+{
+ return compress(out, in.empty() ? 0 : &in[0], in.size(), settings);
+}
+#endif //LODEPNG_COMPILE_ENCODER
+#endif //LODEPNG_COMPILE_ZLIB
+
+
+#ifdef LODEPNG_COMPILE_PNG
+
+State::State()
+{
+ lodepng_state_init(this);
+}
+
+State::State(const State& other)
+{
+ lodepng_state_init(this);
+ lodepng_state_copy(this, &other);
+}
+
+State::~State()
+{
+ lodepng_state_cleanup(this);
+}
+
+State& State::operator=(const State& other)
+{
+ lodepng_state_copy(this, &other);
+ return *this;
+}
+
+#ifdef LODEPNG_COMPILE_DECODER
+
+unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h, const unsigned char* in,
+ size_t insize, LodePNGColorType colortype, unsigned bitdepth)
+{
+ unsigned char* buffer;
+ unsigned error = lodepng_decode_memory(&buffer, &w, &h, in, insize, colortype, bitdepth);
+ if(buffer && !error)
+ {
+ State state;
+ state.info_raw.colortype = colortype;
+ state.info_raw.bitdepth = bitdepth;
+ size_t buffersize = lodepng_get_raw_size(w, h, &state.info_raw);
+ out.insert(out.end(), &buffer[0], &buffer[buffersize]);
+ lodepng_free(buffer);
+ }
+ return error;
+}
+
+unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h,
+ const std::vector<unsigned char>& in, LodePNGColorType colortype, unsigned bitdepth)
+{
+ return decode(out, w, h, in.empty() ? 0 : &in[0], (unsigned)in.size(), colortype, bitdepth);
+}
+
+unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h,
+ State& state,
+ const unsigned char* in, size_t insize)
+{
+ unsigned char* buffer = NULL;
+ unsigned error = lodepng_decode(&buffer, &w, &h, &state, in, insize);
+ if(buffer && !error)
+ {
+ size_t buffersize = lodepng_get_raw_size(w, h, &state.info_raw);
+ out.insert(out.end(), &buffer[0], &buffer[buffersize]);
+ }
+ lodepng_free(buffer);
+ return error;
+}
+
+unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h,
+ State& state,
+ const std::vector<unsigned char>& in)
+{
+ return decode(out, w, h, state, in.empty() ? 0 : &in[0], in.size());
+}
+
+#ifdef LODEPNG_COMPILE_DISK
+unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h, const std::string& filename,
+ LodePNGColorType colortype, unsigned bitdepth)
+{
+ std::vector<unsigned char> buffer;
+ load_file(buffer, filename);
+ return decode(out, w, h, buffer, colortype, bitdepth);
+}
+#endif //LODEPNG_COMPILE_DECODER
+#endif //LODEPNG_COMPILE_DISK
+
+#ifdef LODEPNG_COMPILE_ENCODER
+unsigned encode(std::vector<unsigned char>& out, const unsigned char* in, unsigned w, unsigned h,
+ LodePNGColorType colortype, unsigned bitdepth)
+{
+ unsigned char* buffer;
+ size_t buffersize;
+ unsigned error = lodepng_encode_memory(&buffer, &buffersize, in, w, h, colortype, bitdepth);
+ if(buffer)
+ {
+ out.insert(out.end(), &buffer[0], &buffer[buffersize]);
+ lodepng_free(buffer);
+ }
+ return error;
+}
+
+unsigned encode(std::vector<unsigned char>& out,
+ const std::vector<unsigned char>& in, unsigned w, unsigned h,
+ LodePNGColorType colortype, unsigned bitdepth)
+{
+ if(lodepng_get_raw_size_lct(w, h, colortype, bitdepth) > in.size()) return 84;
+ return encode(out, in.empty() ? 0 : &in[0], w, h, colortype, bitdepth);
+}
+
+unsigned encode(std::vector<unsigned char>& out,
+ const unsigned char* in, unsigned w, unsigned h,
+ State& state)
+{
+ unsigned char* buffer;
+ size_t buffersize;
+ unsigned error = lodepng_encode(&buffer, &buffersize, in, w, h, &state);
+ if(buffer)
+ {
+ out.insert(out.end(), &buffer[0], &buffer[buffersize]);
+ lodepng_free(buffer);
+ }
+ return error;
+}
+
+unsigned encode(std::vector<unsigned char>& out,
+ const std::vector<unsigned char>& in, unsigned w, unsigned h,
+ State& state)
+{
+ if(lodepng_get_raw_size(w, h, &state.info_raw) > in.size()) return 84;
+ return encode(out, in.empty() ? 0 : &in[0], w, h, state);
+}
+
+#ifdef LODEPNG_COMPILE_DISK
+unsigned encode(const std::string& filename,
+ const unsigned char* in, unsigned w, unsigned h,
+ LodePNGColorType colortype, unsigned bitdepth)
+{
+ std::vector<unsigned char> buffer;
+ unsigned error = encode(buffer, in, w, h, colortype, bitdepth);
+ if(!error) save_file(buffer, filename);
+ return error;
+}
+
+unsigned encode(const std::string& filename,
+ const std::vector<unsigned char>& in, unsigned w, unsigned h,
+ LodePNGColorType colortype, unsigned bitdepth)
+{
+ if(lodepng_get_raw_size_lct(w, h, colortype, bitdepth) > in.size()) return 84;
+ return encode(filename, in.empty() ? 0 : &in[0], w, h, colortype, bitdepth);
+}
+#endif //LODEPNG_COMPILE_DISK
+#endif //LODEPNG_COMPILE_ENCODER
+#endif //LODEPNG_COMPILE_PNG
+} //namespace lodepng
+#endif /*LODEPNG_COMPILE_CPP*/
diff --git a/plugingui/lodepng/lodepng.h b/plugingui/lodepng/lodepng.h
new file mode 100644
index 0000000..c497a5c
--- /dev/null
+++ b/plugingui/lodepng/lodepng.h
@@ -0,0 +1,1716 @@
+/*
+LodePNG version 20131222
+
+Copyright (c) 2005-2013 Lode Vandevenne
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+
+ 3. This notice may not be removed or altered from any source
+ distribution.
+*/
+
+#ifndef LODEPNG_H
+#define LODEPNG_H
+
+#include <string.h> /*for size_t*/
+
+#ifdef __cplusplus
+#include <vector>
+#include <string>
+#endif /*__cplusplus*/
+
+/*
+The following #defines are used to create code sections. They can be disabled
+to disable code sections, which can give faster compile time and smaller binary.
+The "NO_COMPILE" defines are designed to be used to pass as defines to the
+compiler command to disable them without modifying this header, e.g.
+-DLODEPNG_NO_COMPILE_ZLIB for gcc.
+*/
+/*deflate & zlib. If disabled, you must specify alternative zlib functions in
+the custom_zlib field of the compress and decompress settings*/
+#ifndef LODEPNG_NO_COMPILE_ZLIB
+#define LODEPNG_COMPILE_ZLIB
+#endif
+/*png encoder and png decoder*/
+#ifndef LODEPNG_NO_COMPILE_PNG
+#define LODEPNG_COMPILE_PNG
+#endif
+/*deflate&zlib decoder and png decoder*/
+#ifndef LODEPNG_NO_COMPILE_DECODER
+#define LODEPNG_COMPILE_DECODER
+#endif
+/*deflate&zlib encoder and png encoder*/
+#ifndef LODEPNG_NO_COMPILE_ENCODER
+#define LODEPNG_COMPILE_ENCODER
+#endif
+/*the optional built in harddisk file loading and saving functions*/
+#ifndef LODEPNG_NO_COMPILE_DISK
+#define LODEPNG_COMPILE_DISK
+#endif
+/*support for chunks other than IHDR, IDAT, PLTE, tRNS, IEND: ancillary and unknown chunks*/
+#ifndef LODEPNG_NO_COMPILE_ANCILLARY_CHUNKS
+#define LODEPNG_COMPILE_ANCILLARY_CHUNKS
+#endif
+/*ability to convert error numerical codes to English text string*/
+#ifndef LODEPNG_NO_COMPILE_ERROR_TEXT
+#define LODEPNG_COMPILE_ERROR_TEXT
+#endif
+/*Compile the default allocators (C's free, malloc and realloc). If you disable this,
+you can define the functions lodepng_free, lodepng_malloc and lodepng_realloc in your
+source files with custom allocators.*/
+#ifndef LODEPNG_NO_COMPILE_ALLOCATORS
+#define LODEPNG_COMPILE_ALLOCATORS
+#endif
+/*compile the C++ version (you can disable the C++ wrapper here even when compiling for C++)*/
+#ifdef __cplusplus
+#ifndef LODEPNG_NO_COMPILE_CPP
+#define LODEPNG_COMPILE_CPP
+#endif
+#endif
+
+#ifdef LODEPNG_COMPILE_PNG
+/*The PNG color types (also used for raw).*/
+typedef enum LodePNGColorType
+{
+ LCT_GREY = 0, /*greyscale: 1,2,4,8,16 bit*/
+ LCT_RGB = 2, /*RGB: 8,16 bit*/
+ LCT_PALETTE = 3, /*palette: 1,2,4,8 bit*/
+ LCT_GREY_ALPHA = 4, /*greyscale with alpha: 8,16 bit*/
+ LCT_RGBA = 6 /*RGB with alpha: 8,16 bit*/
+} LodePNGColorType;
+
+#ifdef LODEPNG_COMPILE_DECODER
+/*
+Converts PNG data in memory to raw pixel data.
+out: Output parameter. Pointer to buffer that will contain the raw pixel data.
+ After decoding, its size is w * h * (bytes per pixel) bytes larger than
+ initially. Bytes per pixel depends on colortype and bitdepth.
+ Must be freed after usage with free(*out).
+ Note: for 16-bit per channel colors, uses big endian format like PNG does.
+w: Output parameter. Pointer to width of pixel data.
+h: Output parameter. Pointer to height of pixel data.
+in: Memory buffer with the PNG file.
+insize: size of the in buffer.
+colortype: the desired color type for the raw output image. See explanation on PNG color types.
+bitdepth: the desired bit depth for the raw output image. See explanation on PNG color types.
+Return value: LodePNG error code (0 means no error).
+*/
+unsigned lodepng_decode_memory(unsigned char** out, unsigned* w, unsigned* h,
+ const unsigned char* in, size_t insize,
+ LodePNGColorType colortype, unsigned bitdepth);
+
+/*Same as lodepng_decode_memory, but always decodes to 32-bit RGBA raw image*/
+unsigned lodepng_decode32(unsigned char** out, unsigned* w, unsigned* h,
+ const unsigned char* in, size_t insize);
+
+/*Same as lodepng_decode_memory, but always decodes to 24-bit RGB raw image*/
+unsigned lodepng_decode24(unsigned char** out, unsigned* w, unsigned* h,
+ const unsigned char* in, size_t insize);
+
+#ifdef LODEPNG_COMPILE_DISK
+/*
+Load PNG from disk, from file with given name.
+Same as the other decode functions, but instead takes a filename as input.
+*/
+unsigned lodepng_decode_file(unsigned char** out, unsigned* w, unsigned* h,
+ const char* filename,
+ LodePNGColorType colortype, unsigned bitdepth);
+
+/*Same as lodepng_decode_file, but always decodes to 32-bit RGBA raw image.*/
+unsigned lodepng_decode32_file(unsigned char** out, unsigned* w, unsigned* h,
+ const char* filename);
+
+/*Same as lodepng_decode_file, but always decodes to 24-bit RGB raw image.*/
+unsigned lodepng_decode24_file(unsigned char** out, unsigned* w, unsigned* h,
+ const char* filename);
+#endif /*LODEPNG_COMPILE_DISK*/
+#endif /*LODEPNG_COMPILE_DECODER*/
+
+
+#ifdef LODEPNG_COMPILE_ENCODER
+/*
+Converts raw pixel data into a PNG image in memory. The colortype and bitdepth
+ of the output PNG image cannot be chosen, they are automatically determined
+ by the colortype, bitdepth and content of the input pixel data.
+ Note: for 16-bit per channel colors, needs big endian format like PNG does.
+out: Output parameter. Pointer to buffer that will contain the PNG image data.
+ Must be freed after usage with free(*out).
+outsize: Output parameter. Pointer to the size in bytes of the out buffer.
+image: The raw pixel data to encode. The size of this buffer should be
+ w * h * (bytes per pixel), bytes per pixel depends on colortype and bitdepth.
+w: width of the raw pixel data in pixels.
+h: height of the raw pixel data in pixels.
+colortype: the color type of the raw input image. See explanation on PNG color types.
+bitdepth: the bit depth of the raw input image. See explanation on PNG color types.
+Return value: LodePNG error code (0 means no error).
+*/
+unsigned lodepng_encode_memory(unsigned char** out, size_t* outsize,
+ const unsigned char* image, unsigned w, unsigned h,
+ LodePNGColorType colortype, unsigned bitdepth);
+
+/*Same as lodepng_encode_memory, but always encodes from 32-bit RGBA raw image.*/
+unsigned lodepng_encode32(unsigned char** out, size_t* outsize,
+ const unsigned char* image, unsigned w, unsigned h);
+
+/*Same as lodepng_encode_memory, but always encodes from 24-bit RGB raw image.*/
+unsigned lodepng_encode24(unsigned char** out, size_t* outsize,
+ const unsigned char* image, unsigned w, unsigned h);
+
+#ifdef LODEPNG_COMPILE_DISK
+/*
+Converts raw pixel data into a PNG file on disk.
+Same as the other encode functions, but instead takes a filename as output.
+NOTE: This overwrites existing files without warning!
+*/
+unsigned lodepng_encode_file(const char* filename,
+ const unsigned char* image, unsigned w, unsigned h,
+ LodePNGColorType colortype, unsigned bitdepth);
+
+/*Same as lodepng_encode_file, but always encodes from 32-bit RGBA raw image.*/
+unsigned lodepng_encode32_file(const char* filename,
+ const unsigned char* image, unsigned w, unsigned h);
+
+/*Same as lodepng_encode_file, but always encodes from 24-bit RGB raw image.*/
+unsigned lodepng_encode24_file(const char* filename,
+ const unsigned char* image, unsigned w, unsigned h);
+#endif /*LODEPNG_COMPILE_DISK*/
+#endif /*LODEPNG_COMPILE_ENCODER*/
+
+
+#ifdef LODEPNG_COMPILE_CPP
+namespace lodepng
+{
+#ifdef LODEPNG_COMPILE_DECODER
+/*Same as lodepng_decode_memory, but decodes to an std::vector.*/
+unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h,
+ const unsigned char* in, size_t insize,
+ LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
+unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h,
+ const std::vector<unsigned char>& in,
+ LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
+#ifdef LODEPNG_COMPILE_DISK
+/*
+Converts PNG file from disk to raw pixel data in memory.
+Same as the other decode functions, but instead takes a filename as input.
+*/
+unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h,
+ const std::string& filename,
+ LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
+#endif //LODEPNG_COMPILE_DISK
+#endif //LODEPNG_COMPILE_DECODER
+
+#ifdef LODEPNG_COMPILE_ENCODER
+/*Same as lodepng_encode_memory, but encodes to an std::vector.*/
+unsigned encode(std::vector<unsigned char>& out,
+ const unsigned char* in, unsigned w, unsigned h,
+ LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
+unsigned encode(std::vector<unsigned char>& out,
+ const std::vector<unsigned char>& in, unsigned w, unsigned h,
+ LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
+#ifdef LODEPNG_COMPILE_DISK
+/*
+Converts 32-bit RGBA raw pixel data into a PNG file on disk.
+Same as the other encode functions, but instead takes a filename as output.
+NOTE: This overwrites existing files without warning!
+*/
+unsigned encode(const std::string& filename,
+ const unsigned char* in, unsigned w, unsigned h,
+ LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
+unsigned encode(const std::string& filename,
+ const std::vector<unsigned char>& in, unsigned w, unsigned h,
+ LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
+#endif //LODEPNG_COMPILE_DISK
+#endif //LODEPNG_COMPILE_ENCODER
+} //namespace lodepng
+#endif /*LODEPNG_COMPILE_CPP*/
+#endif /*LODEPNG_COMPILE_PNG*/
+
+#ifdef LODEPNG_COMPILE_ERROR_TEXT
+/*Returns an English description of the numerical error code.*/
+const char* lodepng_error_text(unsigned code);
+#endif /*LODEPNG_COMPILE_ERROR_TEXT*/
+
+#ifdef LODEPNG_COMPILE_DECODER
+/*Settings for zlib decompression*/
+typedef struct LodePNGDecompressSettings LodePNGDecompressSettings;
+struct LodePNGDecompressSettings
+{
+ unsigned ignore_adler32; /*if 1, continue and don't give an error message if the Adler32 checksum is corrupted*/
+
+ /*use custom zlib decoder instead of built in one (default: null)*/
+ unsigned (*custom_zlib)(unsigned char**, size_t*,
+ const unsigned char*, size_t,
+ const LodePNGDecompressSettings*);
+ /*use custom deflate decoder instead of built in one (default: null)
+ if custom_zlib is used, custom_deflate is ignored since only the built in
+ zlib function will call custom_deflate*/
+ unsigned (*custom_inflate)(unsigned char**, size_t*,
+ const unsigned char*, size_t,
+ const LodePNGDecompressSettings*);
+
+ const void* custom_context; /*optional custom settings for custom functions*/
+};
+
+extern const LodePNGDecompressSettings lodepng_default_decompress_settings;
+void lodepng_decompress_settings_init(LodePNGDecompressSettings* settings);
+#endif /*LODEPNG_COMPILE_DECODER*/
+
+#ifdef LODEPNG_COMPILE_ENCODER
+/*
+Settings for zlib compression. Tweaking these settings tweaks the balance
+between speed and compression ratio.
+*/
+typedef struct LodePNGCompressSettings LodePNGCompressSettings;
+struct LodePNGCompressSettings /*deflate = compress*/
+{
+ /*LZ77 related settings*/
+ unsigned btype; /*the block type for LZ (0, 1, 2 or 3, see zlib standard). Should be 2 for proper compression.*/
+ unsigned use_lz77; /*whether or not to use LZ77. Should be 1 for proper compression.*/
+ unsigned windowsize; /*must be a power of two <= 32768. higher compresses more but is slower. Typical value: 2048.*/
+ unsigned minmatch; /*mininum lz77 length. 3 is normally best, 6 can be better for some PNGs. Default: 0*/
+ unsigned nicematch; /*stop searching if >= this length found. Set to 258 for best compression. Default: 128*/
+ unsigned lazymatching; /*use lazy matching: better compression but a bit slower. Default: true*/
+
+ /*use custom zlib encoder instead of built in one (default: null)*/
+ unsigned (*custom_zlib)(unsigned char**, size_t*,
+ const unsigned char*, size_t,
+ const LodePNGCompressSettings*);
+ /*use custom deflate encoder instead of built in one (default: null)
+ if custom_zlib is used, custom_deflate is ignored since only the built in
+ zlib function will call custom_deflate*/
+ unsigned (*custom_deflate)(unsigned char**, size_t*,
+ const unsigned char*, size_t,
+ const LodePNGCompressSettings*);
+
+ const void* custom_context; /*optional custom settings for custom functions*/
+};
+
+extern const LodePNGCompressSettings lodepng_default_compress_settings;
+void lodepng_compress_settings_init(LodePNGCompressSettings* settings);
+#endif /*LODEPNG_COMPILE_ENCODER*/
+
+#ifdef LODEPNG_COMPILE_PNG
+/*
+Color mode of an image. Contains all information required to decode the pixel
+bits to RGBA colors. This information is the same as used in the PNG file
+format, and is used both for PNG and raw image data in LodePNG.
+*/
+typedef struct LodePNGColorMode
+{
+ /*header (IHDR)*/
+ LodePNGColorType colortype; /*color type, see PNG standard or documentation further in this header file*/
+ unsigned bitdepth; /*bits per sample, see PNG standard or documentation further in this header file*/
+
+ /*
+ palette (PLTE and tRNS)
+
+ Dynamically allocated with the colors of the palette, including alpha.
+ When encoding a PNG, to store your colors in the palette of the LodePNGColorMode, first use
+ lodepng_palette_clear, then for each color use lodepng_palette_add.
+ If you encode an image without alpha with palette, don't forget to put value 255 in each A byte of the palette.
+
+ When decoding, by default you can ignore this palette, since LodePNG already
+ fills the palette colors in the pixels of the raw RGBA output.
+
+ The palette is only supported for color type 3.
+ */
+ unsigned char* palette; /*palette in RGBARGBA... order. When allocated, must be either 0, or have size 1024*/
+ size_t palettesize; /*palette size in number of colors (amount of bytes is 4 * palettesize)*/
+
+ /*
+ transparent color key (tRNS)
+
+ This color uses the same bit depth as the bitdepth value in this struct, which can be 1-bit to 16-bit.
+ For greyscale PNGs, r, g and b will all 3 be set to the same.
+
+ When decoding, by default you can ignore this information, since LodePNG sets
+ pixels with this key to transparent already in the raw RGBA output.
+
+ The color key is only supported for color types 0 and 2.
+ */
+ unsigned key_defined; /*is a transparent color key given? 0 = false, 1 = true*/
+ unsigned key_r; /*red/greyscale component of color key*/
+ unsigned key_g; /*green component of color key*/
+ unsigned key_b; /*blue component of color key*/
+} LodePNGColorMode;
+
+/*init, cleanup and copy functions to use with this struct*/
+void lodepng_color_mode_init(LodePNGColorMode* info);
+void lodepng_color_mode_cleanup(LodePNGColorMode* info);
+/*return value is error code (0 means no error)*/
+unsigned lodepng_color_mode_copy(LodePNGColorMode* dest, const LodePNGColorMode* source);
+
+void lodepng_palette_clear(LodePNGColorMode* info);
+/*add 1 color to the palette*/
+unsigned lodepng_palette_add(LodePNGColorMode* info,
+ unsigned char r, unsigned char g, unsigned char b, unsigned char a);
+
+/*get the total amount of bits per pixel, based on colortype and bitdepth in the struct*/
+unsigned lodepng_get_bpp(const LodePNGColorMode* info);
+/*get the amount of color channels used, based on colortype in the struct.
+If a palette is used, it counts as 1 channel.*/
+unsigned lodepng_get_channels(const LodePNGColorMode* info);
+/*is it a greyscale type? (only colortype 0 or 4)*/
+unsigned lodepng_is_greyscale_type(const LodePNGColorMode* info);
+/*has it got an alpha channel? (only colortype 2 or 6)*/
+unsigned lodepng_is_alpha_type(const LodePNGColorMode* info);
+/*has it got a palette? (only colortype 3)*/
+unsigned lodepng_is_palette_type(const LodePNGColorMode* info);
+/*only returns true if there is a palette and there is a value in the palette with alpha < 255.
+Loops through the palette to check this.*/
+unsigned lodepng_has_palette_alpha(const LodePNGColorMode* info);
+/*
+Check if the given color info indicates the possibility of having non-opaque pixels in the PNG image.
+Returns true if the image can have translucent or invisible pixels (it still be opaque if it doesn't use such pixels).
+Returns false if the image can only have opaque pixels.
+In detail, it returns true only if it's a color type with alpha, or has a palette with non-opaque values,
+or if "key_defined" is true.
+*/
+unsigned lodepng_can_have_alpha(const LodePNGColorMode* info);
+/*Returns the byte size of a raw image buffer with given width, height and color mode*/
+size_t lodepng_get_raw_size(unsigned w, unsigned h, const LodePNGColorMode* color);
+
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+/*The information of a Time chunk in PNG.*/
+typedef struct LodePNGTime
+{
+ unsigned year; /*2 bytes used (0-65535)*/
+ unsigned month; /*1-12*/
+ unsigned day; /*1-31*/
+ unsigned hour; /*0-23*/
+ unsigned minute; /*0-59*/
+ unsigned second; /*0-60 (to allow for leap seconds)*/
+} LodePNGTime;
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+
+/*Information about the PNG image, except pixels, width and height.*/
+typedef struct LodePNGInfo
+{
+ /*header (IHDR), palette (PLTE) and transparency (tRNS) chunks*/
+ unsigned compression_method;/*compression method of the original file. Always 0.*/
+ unsigned filter_method; /*filter method of the original file*/
+ unsigned interlace_method; /*interlace method of the original file*/
+ LodePNGColorMode color; /*color type and bits, palette and transparency of the PNG file*/
+
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ /*
+ suggested background color chunk (bKGD)
+ This color uses the same color mode as the PNG (except alpha channel), which can be 1-bit to 16-bit.
+
+ For greyscale PNGs, r, g and b will all 3 be set to the same. When encoding
+ the encoder writes the red one. For palette PNGs: When decoding, the RGB value
+ will be stored, not a palette index. But when encoding, specify the index of
+ the palette in background_r, the other two are then ignored.
+
+ The decoder does not use this background color to edit the color of pixels.
+ */
+ unsigned background_defined; /*is a suggested background color given?*/
+ unsigned background_r; /*red component of suggested background color*/
+ unsigned background_g; /*green component of suggested background color*/
+ unsigned background_b; /*blue component of suggested background color*/
+
+ /*
+ non-international text chunks (tEXt and zTXt)
+
+ The char** arrays each contain num strings. The actual messages are in
+ text_strings, while text_keys are keywords that give a short description what
+ the actual text represents, e.g. Title, Author, Description, or anything else.
+
+ A keyword is minimum 1 character and maximum 79 characters long. It's
+ discouraged to use a single line length longer than 79 characters for texts.
+
+ Don't allocate these text buffers yourself. Use the init/cleanup functions
+ correctly and use lodepng_add_text and lodepng_clear_text.
+ */
+ size_t text_num; /*the amount of texts in these char** buffers (there may be more texts in itext)*/
+ char** text_keys; /*the keyword of a text chunk (e.g. "Comment")*/
+ char** text_strings; /*the actual text*/
+
+ /*
+ international text chunks (iTXt)
+ Similar to the non-international text chunks, but with additional strings
+ "langtags" and "transkeys".
+ */
+ size_t itext_num; /*the amount of international texts in this PNG*/
+ char** itext_keys; /*the English keyword of the text chunk (e.g. "Comment")*/
+ char** itext_langtags; /*language tag for this text's language, ISO/IEC 646 string, e.g. ISO 639 language tag*/
+ char** itext_transkeys; /*keyword translated to the international language - UTF-8 string*/
+ char** itext_strings; /*the actual international text - UTF-8 string*/
+
+ /*time chunk (tIME)*/
+ unsigned time_defined; /*set to 1 to make the encoder generate a tIME chunk*/
+ LodePNGTime time;
+
+ /*phys chunk (pHYs)*/
+ unsigned phys_defined; /*if 0, there is no pHYs chunk and the values below are undefined, if 1 else there is one*/
+ unsigned phys_x; /*pixels per unit in x direction*/
+ unsigned phys_y; /*pixels per unit in y direction*/
+ unsigned phys_unit; /*may be 0 (unknown unit) or 1 (metre)*/
+
+ /*
+ unknown chunks
+ There are 3 buffers, one for each position in the PNG where unknown chunks can appear
+ each buffer contains all unknown chunks for that position consecutively
+ The 3 buffers are the unknown chunks between certain critical chunks:
+ 0: IHDR-PLTE, 1: PLTE-IDAT, 2: IDAT-IEND
+ Do not allocate or traverse this data yourself. Use the chunk traversing functions declared
+ later, such as lodepng_chunk_next and lodepng_chunk_append, to read/write this struct.
+ */
+ unsigned char* unknown_chunks_data[3];
+ size_t unknown_chunks_size[3]; /*size in bytes of the unknown chunks, given for protection*/
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+} LodePNGInfo;
+
+/*init, cleanup and copy functions to use with this struct*/
+void lodepng_info_init(LodePNGInfo* info);
+void lodepng_info_cleanup(LodePNGInfo* info);
+/*return value is error code (0 means no error)*/
+unsigned lodepng_info_copy(LodePNGInfo* dest, const LodePNGInfo* source);
+
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+void lodepng_clear_text(LodePNGInfo* info); /*use this to clear the texts again after you filled them in*/
+unsigned lodepng_add_text(LodePNGInfo* info, const char* key, const char* str); /*push back both texts at once*/
+
+void lodepng_clear_itext(LodePNGInfo* info); /*use this to clear the itexts again after you filled them in*/
+unsigned lodepng_add_itext(LodePNGInfo* info, const char* key, const char* langtag,
+ const char* transkey, const char* str); /*push back the 4 texts of 1 chunk at once*/
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+
+/*
+Converts raw buffer from one color type to another color type, based on
+LodePNGColorMode structs to describe the input and output color type.
+See the reference manual at the end of this header file to see which color conversions are supported.
+return value = LodePNG error code (0 if all went ok, an error if the conversion isn't supported)
+The out buffer must have size (w * h * bpp + 7) / 8, where bpp is the bits per pixel
+of the output color type (lodepng_get_bpp)
+The fix_png value works as described in struct LodePNGDecoderSettings.
+Note: for 16-bit per channel colors, uses big endian format like PNG does.
+*/
+unsigned lodepng_convert(unsigned char* out, const unsigned char* in,
+ LodePNGColorMode* mode_out, const LodePNGColorMode* mode_in,
+ unsigned w, unsigned h, unsigned fix_png);
+
+#ifdef LODEPNG_COMPILE_DECODER
+/*
+Settings for the decoder. This contains settings for the PNG and the Zlib
+decoder, but not the Info settings from the Info structs.
+*/
+typedef struct LodePNGDecoderSettings
+{
+ LodePNGDecompressSettings zlibsettings; /*in here is the setting to ignore Adler32 checksums*/
+
+ unsigned ignore_crc; /*ignore CRC checksums*/
+ /*
+ The fix_png setting, if 1, makes the decoder tolerant towards some PNG images
+ that do not correctly follow the PNG specification. This only supports errors
+ that are fixable, were found in images that are actually used on the web, and
+ are silently tolerated by other decoders as well. Currently only one such fix
+ is implemented: if a palette index is out of bounds given the palette size,
+ interpret it as opaque black.
+ By default this value is 0, which makes it stop with an error on such images.
+ */
+ unsigned fix_png;
+ unsigned color_convert; /*whether to convert the PNG to the color type you want. Default: yes*/
+
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ unsigned read_text_chunks; /*if false but remember_unknown_chunks is true, they're stored in the unknown chunks*/
+ /*store all bytes from unknown chunks in the LodePNGInfo (off by default, useful for a png editor)*/
+ unsigned remember_unknown_chunks;
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+} LodePNGDecoderSettings;
+
+void lodepng_decoder_settings_init(LodePNGDecoderSettings* settings);
+#endif /*LODEPNG_COMPILE_DECODER*/
+
+#ifdef LODEPNG_COMPILE_ENCODER
+/*automatically use color type with less bits per pixel if losslessly possible. Default: AUTO*/
+typedef enum LodePNGFilterStrategy
+{
+ /*every filter at zero*/
+ LFS_ZERO,
+ /*Use filter that gives minumum sum, as described in the official PNG filter heuristic.*/
+ LFS_MINSUM,
+ /*Use the filter type that gives smallest Shannon entropy for this scanline. Depending
+ on the image, this is better or worse than minsum.*/
+ LFS_ENTROPY,
+ /*
+ Brute-force-search PNG filters by compressing each filter for each scanline.
+ Experimental, very slow, and only rarely gives better compression than MINSUM.
+ */
+ LFS_BRUTE_FORCE,
+ /*use predefined_filters buffer: you specify the filter type for each scanline*/
+ LFS_PREDEFINED
+} LodePNGFilterStrategy;
+
+/*automatically use color type with less bits per pixel if losslessly possible. Default: LAC_AUTO*/
+typedef enum LodePNGAutoConvert
+{
+ LAC_NO, /*use color type user requested*/
+ LAC_ALPHA, /*use color type user requested, but if only opaque pixels and RGBA or grey+alpha, use RGB or grey*/
+ LAC_AUTO, /*use PNG color type that can losslessly represent the uncompressed image the smallest possible*/
+ /*
+ like AUTO, but do not choose 1, 2 or 4 bit per pixel types.
+ sometimes a PNG image compresses worse if less than 8 bits per pixels.
+ */
+ LAC_AUTO_NO_NIBBLES,
+ /*
+ like AUTO, but never choose palette color type. For small images, encoding
+ the palette may take more bytes than what is gained. Note that AUTO also
+ already prevents encoding the palette for extremely small images, but that may
+ not be sufficient because due to the compression it cannot predict when to
+ switch.
+ */
+ LAC_AUTO_NO_PALETTE,
+ LAC_AUTO_NO_NIBBLES_NO_PALETTE
+} LodePNGAutoConvert;
+
+
+/*
+Automatically chooses color type that gives smallest amount of bits in the
+output image, e.g. grey if there are only greyscale pixels, palette if there
+are less than 256 colors, ...
+The auto_convert parameter allows limiting it to not use palette, ...
+*/
+unsigned lodepng_auto_choose_color(LodePNGColorMode* mode_out,
+ const unsigned char* image, unsigned w, unsigned h,
+ const LodePNGColorMode* mode_in,
+ LodePNGAutoConvert auto_convert);
+
+/*Settings for the encoder.*/
+typedef struct LodePNGEncoderSettings
+{
+ LodePNGCompressSettings zlibsettings; /*settings for the zlib encoder, such as window size, ...*/
+
+ LodePNGAutoConvert auto_convert; /*how to automatically choose output PNG color type, if at all*/
+
+ /*If true, follows the official PNG heuristic: if the PNG uses a palette or lower than
+ 8 bit depth, set all filters to zero. Otherwise use the filter_strategy. Note that to
+ completely follow the official PNG heuristic, filter_palette_zero must be true and
+ filter_strategy must be LFS_MINSUM*/
+ unsigned filter_palette_zero;
+ /*Which filter strategy to use when not using zeroes due to filter_palette_zero.
+ Set filter_palette_zero to 0 to ensure always using your chosen strategy. Default: LFS_MINSUM*/
+ LodePNGFilterStrategy filter_strategy;
+ /*used if filter_strategy is LFS_PREDEFINED. In that case, this must point to a buffer with
+ the same length as the amount of scanlines in the image, and each value must <= 5. You
+ have to cleanup this buffer, LodePNG will never free it. Don't forget that filter_palette_zero
+ must be set to 0 to ensure this is also used on palette or low bitdepth images.*/
+ const unsigned char* predefined_filters;
+
+ /*force creating a PLTE chunk if colortype is 2 or 6 (= a suggested palette).
+ If colortype is 3, PLTE is _always_ created.*/
+ unsigned force_palette;
+#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
+ /*add LodePNG identifier and version as a text chunk, for debugging*/
+ unsigned add_id;
+ /*encode text chunks as zTXt chunks instead of tEXt chunks, and use compression in iTXt chunks*/
+ unsigned text_compression;
+#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
+} LodePNGEncoderSettings;
+
+void lodepng_encoder_settings_init(LodePNGEncoderSettings* settings);
+#endif /*LODEPNG_COMPILE_ENCODER*/
+
+
+#if defined(LODEPNG_COMPILE_DECODER) || defined(LODEPNG_COMPILE_ENCODER)
+/*The settings, state and information for extended encoding and decoding.*/
+typedef struct LodePNGState
+{
+#ifdef LODEPNG_COMPILE_DECODER
+ LodePNGDecoderSettings decoder; /*the decoding settings*/
+#endif /*LODEPNG_COMPILE_DECODER*/
+#ifdef LODEPNG_COMPILE_ENCODER
+ LodePNGEncoderSettings encoder; /*the encoding settings*/
+#endif /*LODEPNG_COMPILE_ENCODER*/
+ LodePNGColorMode info_raw; /*specifies the format in which you would like to get the raw pixel buffer*/
+ LodePNGInfo info_png; /*info of the PNG image obtained after decoding*/
+ unsigned error;
+#ifdef LODEPNG_COMPILE_CPP
+ //For the lodepng::State subclass.
+ virtual ~LodePNGState(){}
+#endif
+} LodePNGState;
+
+/*init, cleanup and copy functions to use with this struct*/
+void lodepng_state_init(LodePNGState* state);
+void lodepng_state_cleanup(LodePNGState* state);
+void lodepng_state_copy(LodePNGState* dest, const LodePNGState* source);
+#endif /* defined(LODEPNG_COMPILE_DECODER) || defined(LODEPNG_COMPILE_ENCODER) */
+
+#ifdef LODEPNG_COMPILE_DECODER
+/*
+Same as lodepng_decode_memory, but uses a LodePNGState to allow custom settings and
+getting much more information about the PNG image and color mode.
+*/
+unsigned lodepng_decode(unsigned char** out, unsigned* w, unsigned* h,
+ LodePNGState* state,
+ const unsigned char* in, size_t insize);
+
+/*
+Read the PNG header, but not the actual data. This returns only the information
+that is in the header chunk of the PNG, such as width, height and color type. The
+information is placed in the info_png field of the LodePNGState.
+*/
+unsigned lodepng_inspect(unsigned* w, unsigned* h,
+ LodePNGState* state,
+ const unsigned char* in, size_t insize);
+#endif /*LODEPNG_COMPILE_DECODER*/
+
+
+#ifdef LODEPNG_COMPILE_ENCODER
+/*This function allocates the out buffer with standard malloc and stores the size in *outsize.*/
+unsigned lodepng_encode(unsigned char** out, size_t* outsize,
+ const unsigned char* image, unsigned w, unsigned h,
+ LodePNGState* state);
+#endif /*LODEPNG_COMPILE_ENCODER*/
+
+/*
+The lodepng_chunk functions are normally not needed, except to traverse the
+unknown chunks stored in the LodePNGInfo struct, or add new ones to it.
+It also allows traversing the chunks of an encoded PNG file yourself.
+
+PNG standard chunk naming conventions:
+First byte: uppercase = critical, lowercase = ancillary
+Second byte: uppercase = public, lowercase = private
+Third byte: must be uppercase
+Fourth byte: uppercase = unsafe to copy, lowercase = safe to copy
+*/
+
+/*get the length of the data of the chunk. Total chunk length has 12 bytes more.*/
+unsigned lodepng_chunk_length(const unsigned char* chunk);
+
+/*puts the 4-byte type in null terminated string*/
+void lodepng_chunk_type(char type[5], const unsigned char* chunk);
+
+/*check if the type is the given type*/
+unsigned char lodepng_chunk_type_equals(const unsigned char* chunk, const char* type);
+
+/*0: it's one of the critical chunk types, 1: it's an ancillary chunk (see PNG standard)*/
+unsigned char lodepng_chunk_ancillary(const unsigned char* chunk);
+
+/*0: public, 1: private (see PNG standard)*/
+unsigned char lodepng_chunk_private(const unsigned char* chunk);
+
+/*0: the chunk is unsafe to copy, 1: the chunk is safe to copy (see PNG standard)*/
+unsigned char lodepng_chunk_safetocopy(const unsigned char* chunk);
+
+/*get pointer to the data of the chunk, where the input points to the header of the chunk*/
+unsigned char* lodepng_chunk_data(unsigned char* chunk);
+const unsigned char* lodepng_chunk_data_const(const unsigned char* chunk);
+
+/*returns 0 if the crc is correct, 1 if it's incorrect (0 for OK as usual!)*/
+unsigned lodepng_chunk_check_crc(const unsigned char* chunk);
+
+/*generates the correct CRC from the data and puts it in the last 4 bytes of the chunk*/
+void lodepng_chunk_generate_crc(unsigned char* chunk);
+
+/*iterate to next chunks. don't use on IEND chunk, as there is no next chunk then*/
+unsigned char* lodepng_chunk_next(unsigned char* chunk);
+const unsigned char* lodepng_chunk_next_const(const unsigned char* chunk);
+
+/*
+Appends chunk to the data in out. The given chunk should already have its chunk header.
+The out variable and outlength are updated to reflect the new reallocated buffer.
+Returns error code (0 if it went ok)
+*/
+unsigned lodepng_chunk_append(unsigned char** out, size_t* outlength, const unsigned char* chunk);
+
+/*
+Appends new chunk to out. The chunk to append is given by giving its length, type
+and data separately. The type is a 4-letter string.
+The out variable and outlength are updated to reflect the new reallocated buffer.
+Returne error code (0 if it went ok)
+*/
+unsigned lodepng_chunk_create(unsigned char** out, size_t* outlength, unsigned length,
+ const char* type, const unsigned char* data);
+
+
+/*Calculate CRC32 of buffer*/
+unsigned lodepng_crc32(const unsigned char* buf, size_t len);
+#endif /*LODEPNG_COMPILE_PNG*/
+
+
+#ifdef LODEPNG_COMPILE_ZLIB
+/*
+This zlib part can be used independently to zlib compress and decompress a
+buffer. It cannot be used to create gzip files however, and it only supports the
+part of zlib that is required for PNG, it does not support dictionaries.
+*/
+
+#ifdef LODEPNG_COMPILE_DECODER
+/*Inflate a buffer. Inflate is the decompression step of deflate. Out buffer must be freed after use.*/
+unsigned lodepng_inflate(unsigned char** out, size_t* outsize,
+ const unsigned char* in, size_t insize,
+ const LodePNGDecompressSettings* settings);
+
+/*
+Decompresses Zlib data. Reallocates the out buffer and appends the data. The
+data must be according to the zlib specification.
+Either, *out must be NULL and *outsize must be 0, or, *out must be a valid
+buffer and *outsize its size in bytes. out must be freed by user after usage.
+*/
+unsigned lodepng_zlib_decompress(unsigned char** out, size_t* outsize,
+ const unsigned char* in, size_t insize,
+ const LodePNGDecompressSettings* settings);
+#endif /*LODEPNG_COMPILE_DECODER*/
+
+#ifdef LODEPNG_COMPILE_ENCODER
+/*
+Compresses data with Zlib. Reallocates the out buffer and appends the data.
+Zlib adds a small header and trailer around the deflate data.
+The data is output in the format of the zlib specification.
+Either, *out must be NULL and *outsize must be 0, or, *out must be a valid
+buffer and *outsize its size in bytes. out must be freed by user after usage.
+*/
+unsigned lodepng_zlib_compress(unsigned char** out, size_t* outsize,
+ const unsigned char* in, size_t insize,
+ const LodePNGCompressSettings* settings);
+
+/*
+Find length-limited Huffman code for given frequencies. This function is in the
+public interface only for tests, it's used internally by lodepng_deflate.
+*/
+unsigned lodepng_huffman_code_lengths(unsigned* lengths, const unsigned* frequencies,
+ size_t numcodes, unsigned maxbitlen);
+
+/*Compress a buffer with deflate. See RFC 1951. Out buffer must be freed after use.*/
+unsigned lodepng_deflate(unsigned char** out, size_t* outsize,
+ const unsigned char* in, size_t insize,
+ const LodePNGCompressSettings* settings);
+
+#endif /*LODEPNG_COMPILE_ENCODER*/
+#endif /*LODEPNG_COMPILE_ZLIB*/
+
+#ifdef LODEPNG_COMPILE_DISK
+/*
+Load a file from disk into buffer. The function allocates the out buffer, and
+after usage you should free it.
+out: output parameter, contains pointer to loaded buffer.
+outsize: output parameter, size of the allocated out buffer
+filename: the path to the file to load
+return value: error code (0 means ok)
+*/
+unsigned lodepng_load_file(unsigned char** out, size_t* outsize, const char* filename);
+
+/*
+Save a file from buffer to disk. Warning, if it exists, this function overwrites
+the file without warning!
+buffer: the buffer to write
+buffersize: size of the buffer to write
+filename: the path to the file to save to
+return value: error code (0 means ok)
+*/
+unsigned lodepng_save_file(const unsigned char* buffer, size_t buffersize, const char* filename);
+#endif /*LODEPNG_COMPILE_DISK*/
+
+#ifdef LODEPNG_COMPILE_CPP
+//The LodePNG C++ wrapper uses std::vectors instead of manually allocated memory buffers.
+namespace lodepng
+{
+#ifdef LODEPNG_COMPILE_PNG
+class State : public LodePNGState
+{
+ public:
+ State();
+ State(const State& other);
+ virtual ~State();
+ State& operator=(const State& other);
+};
+
+#ifdef LODEPNG_COMPILE_DECODER
+//Same as other lodepng::decode, but using a State for more settings and information.
+unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h,
+ State& state,
+ const unsigned char* in, size_t insize);
+unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h,
+ State& state,
+ const std::vector<unsigned char>& in);
+#endif /*LODEPNG_COMPILE_DECODER*/
+
+#ifdef LODEPNG_COMPILE_ENCODER
+//Same as other lodepng::encode, but using a State for more settings and information.
+unsigned encode(std::vector<unsigned char>& out,
+ const unsigned char* in, unsigned w, unsigned h,
+ State& state);
+unsigned encode(std::vector<unsigned char>& out,
+ const std::vector<unsigned char>& in, unsigned w, unsigned h,
+ State& state);
+#endif /*LODEPNG_COMPILE_ENCODER*/
+
+#ifdef LODEPNG_COMPILE_DISK
+/*
+Load a file from disk into an std::vector. If the vector is empty, then either
+the file doesn't exist or is an empty file.
+*/
+void load_file(std::vector<unsigned char>& buffer, const std::string& filename);
+
+/*
+Save the binary data in an std::vector to a file on disk. The file is overwritten
+without warning.
+*/
+void save_file(const std::vector<unsigned char>& buffer, const std::string& filename);
+#endif //LODEPNG_COMPILE_DISK
+#endif //LODEPNG_COMPILE_PNG
+
+#ifdef LODEPNG_COMPILE_ZLIB
+#ifdef LODEPNG_COMPILE_DECODER
+//Zlib-decompress an unsigned char buffer
+unsigned decompress(std::vector<unsigned char>& out, const unsigned char* in, size_t insize,
+ const LodePNGDecompressSettings& settings = lodepng_default_decompress_settings);
+
+//Zlib-decompress an std::vector
+unsigned decompress(std::vector<unsigned char>& out, const std::vector<unsigned char>& in,
+ const LodePNGDecompressSettings& settings = lodepng_default_decompress_settings);
+#endif //LODEPNG_COMPILE_DECODER
+
+#ifdef LODEPNG_COMPILE_ENCODER
+//Zlib-compress an unsigned char buffer
+unsigned compress(std::vector<unsigned char>& out, const unsigned char* in, size_t insize,
+ const LodePNGCompressSettings& settings = lodepng_default_compress_settings);
+
+//Zlib-compress an std::vector
+unsigned compress(std::vector<unsigned char>& out, const std::vector<unsigned char>& in,
+ const LodePNGCompressSettings& settings = lodepng_default_compress_settings);
+#endif //LODEPNG_COMPILE_ENCODER
+#endif //LODEPNG_COMPILE_ZLIB
+} //namespace lodepng
+#endif /*LODEPNG_COMPILE_CPP*/
+
+/*
+TODO:
+[.] test if there are no memory leaks or security exploits - done a lot but needs to be checked often
+[.] check compatibility with vareous compilers - done but needs to be redone for every newer version
+[X] converting color to 16-bit per channel types
+[ ] read all public PNG chunk types (but never let the color profile and gamma ones touch RGB values)
+[ ] make sure encoder generates no chunks with size > (2^31)-1
+[ ] partial decoding (stream processing)
+[X] let the "isFullyOpaque" function check color keys and transparent palettes too
+[X] better name for the variables "codes", "codesD", "codelengthcodes", "clcl" and "lldl"
+[ ] don't stop decoding on errors like 69, 57, 58 (make warnings)
+[ ] make option to choose if the raw image with non multiple of 8 bits per scanline should have padding bits or not
+[ ] let the C++ wrapper catch exceptions coming from the standard library and return LodePNG error codes
+*/
+
+#endif /*LODEPNG_H inclusion guard*/
+
+/*
+LodePNG Documentation
+---------------------
+
+0. table of contents
+--------------------
+
+ 1. about
+ 1.1. supported features
+ 1.2. features not supported
+ 2. C and C++ version
+ 3. security
+ 4. decoding
+ 5. encoding
+ 6. color conversions
+ 6.1. PNG color types
+ 6.2. color conversions
+ 6.3. padding bits
+ 6.4. A note about 16-bits per channel and endianness
+ 7. error values
+ 8. chunks and PNG editing
+ 9. compiler support
+ 10. examples
+ 10.1. decoder C++ example
+ 10.2. decoder C example
+ 11. changes
+ 12. contact information
+
+
+1. about
+--------
+
+PNG is a file format to store raster images losslessly with good compression,
+supporting different color types and alpha channel.
+
+LodePNG is a PNG codec according to the Portable Network Graphics (PNG)
+Specification (Second Edition) - W3C Recommendation 10 November 2003.
+
+The specifications used are:
+
+*) Portable Network Graphics (PNG) Specification (Second Edition):
+ http://www.w3.org/TR/2003/REC-PNG-20031110
+*) RFC 1950 ZLIB Compressed Data Format version 3.3:
+ http://www.gzip.org/zlib/rfc-zlib.html
+*) RFC 1951 DEFLATE Compressed Data Format Specification ver 1.3:
+ http://www.gzip.org/zlib/rfc-deflate.html
+
+The most recent version of LodePNG can currently be found at
+http://lodev.org/lodepng/
+
+LodePNG works both in C (ISO C90) and C++, with a C++ wrapper that adds
+extra functionality.
+
+LodePNG exists out of two files:
+-lodepng.h: the header file for both C and C++
+-lodepng.c(pp): give it the name lodepng.c or lodepng.cpp (or .cc) depending on your usage
+
+If you want to start using LodePNG right away without reading this doc, get the
+examples from the LodePNG website to see how to use it in code, or check the
+smaller examples in chapter 13 here.
+
+LodePNG is simple but only supports the basic requirements. To achieve
+simplicity, the following design choices were made: There are no dependencies
+on any external library. There are functions to decode and encode a PNG with
+a single function call, and extended versions of these functions taking a
+LodePNGState struct allowing to specify or get more information. By default
+the colors of the raw image are always RGB or RGBA, no matter what color type
+the PNG file uses. To read and write files, there are simple functions to
+convert the files to/from buffers in memory.
+
+This all makes LodePNG suitable for loading textures in games, demos and small
+programs, ... It's less suitable for full fledged image editors, loading PNGs
+over network (it requires all the image data to be available before decoding can
+begin), life-critical systems, ...
+
+1.1. supported features
+-----------------------
+
+The following features are supported by the decoder:
+
+*) decoding of PNGs with any color type, bit depth and interlace mode, to a 24- or 32-bit color raw image,
+ or the same color type as the PNG
+*) encoding of PNGs, from any raw image to 24- or 32-bit color, or the same color type as the raw image
+*) Adam7 interlace and deinterlace for any color type
+*) loading the image from harddisk or decoding it from a buffer from other sources than harddisk
+*) support for alpha channels, including RGBA color model, translucent palettes and color keying
+*) zlib decompression (inflate)
+*) zlib compression (deflate)
+*) CRC32 and ADLER32 checksums
+*) handling of unknown chunks, allowing making a PNG editor that stores custom and unknown chunks.
+*) the following chunks are supported (generated/interpreted) by both encoder and decoder:
+ IHDR: header information
+ PLTE: color palette
+ IDAT: pixel data
+ IEND: the final chunk
+ tRNS: transparency for palettized images
+ tEXt: textual information
+ zTXt: compressed textual information
+ iTXt: international textual information
+ bKGD: suggested background color
+ pHYs: physical dimensions
+ tIME: modification time
+
+1.2. features not supported
+---------------------------
+
+The following features are _not_ supported:
+
+*) some features needed to make a conformant PNG-Editor might be still missing.
+*) partial loading/stream processing. All data must be available and is processed in one call.
+*) The following public chunks are not supported but treated as unknown chunks by LodePNG
+ cHRM, gAMA, iCCP, sRGB, sBIT, hIST, sPLT
+ Some of these are not supported on purpose: LodePNG wants to provide the RGB values
+ stored in the pixels, not values modified by system dependent gamma or color models.
+
+
+2. C and C++ version
+--------------------
+
+The C version uses buffers allocated with alloc that you need to free()
+yourself. You need to use init and cleanup functions for each struct whenever
+using a struct from the C version to avoid exploits and memory leaks.
+
+The C++ version has extra functions with std::vectors in the interface and the
+lodepng::State class which is a LodePNGState with constructor and destructor.
+
+These files work without modification for both C and C++ compilers because all
+the additional C++ code is in "#ifdef __cplusplus" blocks that make C-compilers
+ignore it, and the C code is made to compile both with strict ISO C90 and C++.
+
+To use the C++ version, you need to rename the source file to lodepng.cpp
+(instead of lodepng.c), and compile it with a C++ compiler.
+
+To use the C version, you need to rename the source file to lodepng.c (instead
+of lodepng.cpp), and compile it with a C compiler.
+
+
+3. Security
+-----------
+
+Even if carefully designed, it's always possible that LodePNG contains possible
+exploits. If you discover one, please let me know, and it will be fixed.
+
+When using LodePNG, care has to be taken with the C version of LodePNG, as well
+as the C-style structs when working with C++. The following conventions are used
+for all C-style structs:
+
+-if a struct has a corresponding init function, always call the init function when making a new one
+-if a struct has a corresponding cleanup function, call it before the struct disappears to avoid memory leaks
+-if a struct has a corresponding copy function, use the copy function instead of "=".
+ The destination must also be inited already.
+
+
+4. Decoding
+-----------
+
+Decoding converts a PNG compressed image to a raw pixel buffer.
+
+Most documentation on using the decoder is at its declarations in the header
+above. For C, simple decoding can be done with functions such as
+lodepng_decode32, and more advanced decoding can be done with the struct
+LodePNGState and lodepng_decode. For C++, all decoding can be done with the
+various lodepng::decode functions, and lodepng::State can be used for advanced
+features.
+
+When using the LodePNGState, it uses the following fields for decoding:
+*) LodePNGInfo info_png: it stores extra information about the PNG (the input) in here
+*) LodePNGColorMode info_raw: here you can say what color mode of the raw image (the output) you want to get
+*) LodePNGDecoderSettings decoder: you can specify a few extra settings for the decoder to use
+
+LodePNGInfo info_png
+--------------------
+
+After decoding, this contains extra information of the PNG image, except the actual
+pixels, width and height because these are already gotten directly from the decoder
+functions.
+
+It contains for example the original color type of the PNG image, text comments,
+suggested background color, etc... More details about the LodePNGInfo struct are
+at its declaration documentation.
+
+LodePNGColorMode info_raw
+-------------------------
+
+When decoding, here you can specify which color type you want
+the resulting raw image to be. If this is different from the colortype of the
+PNG, then the decoder will automatically convert the result. This conversion
+always works, except if you want it to convert a color PNG to greyscale or to
+a palette with missing colors.
+
+By default, 32-bit color is used for the result.
+
+LodePNGDecoderSettings decoder
+------------------------------
+
+The settings can be used to ignore the errors created by invalid CRC and Adler32
+chunks, and to disable the decoding of tEXt chunks.
+
+There's also a setting color_convert, true by default. If false, no conversion
+is done, the resulting data will be as it was in the PNG (after decompression)
+and you'll have to puzzle the colors of the pixels together yourself using the
+color type information in the LodePNGInfo.
+
+
+5. Encoding
+-----------
+
+Encoding converts a raw pixel buffer to a PNG compressed image.
+
+Most documentation on using the encoder is at its declarations in the header
+above. For C, simple encoding can be done with functions such as
+lodepng_encode32, and more advanced decoding can be done with the struct
+LodePNGState and lodepng_encode. For C++, all encoding can be done with the
+various lodepng::encode functions, and lodepng::State can be used for advanced
+features.
+
+Like the decoder, the encoder can also give errors. However it gives less errors
+since the encoder input is trusted, the decoder input (a PNG image that could
+be forged by anyone) is not trusted.
+
+When using the LodePNGState, it uses the following fields for encoding:
+*) LodePNGInfo info_png: here you specify how you want the PNG (the output) to be.
+*) LodePNGColorMode info_raw: here you say what color type of the raw image (the input) has
+*) LodePNGEncoderSettings encoder: you can specify a few settings for the encoder to use
+
+LodePNGInfo info_png
+--------------------
+
+When encoding, you use this the opposite way as when decoding: for encoding,
+you fill in the values you want the PNG to have before encoding. By default it's
+not needed to specify a color type for the PNG since it's automatically chosen,
+but it's possible to choose it yourself given the right settings.
+
+The encoder will not always exactly match the LodePNGInfo struct you give,
+it tries as close as possible. Some things are ignored by the encoder. The
+encoder uses, for example, the following settings from it when applicable:
+colortype and bitdepth, text chunks, time chunk, the color key, the palette, the
+background color, the interlace method, unknown chunks, ...
+
+When encoding to a PNG with colortype 3, the encoder will generate a PLTE chunk.
+If the palette contains any colors for which the alpha channel is not 255 (so
+there are translucent colors in the palette), it'll add a tRNS chunk.
+
+LodePNGColorMode info_raw
+-------------------------
+
+You specify the color type of the raw image that you give to the input here,
+including a possible transparent color key and palette you happen to be using in
+your raw image data.
+
+By default, 32-bit color is assumed, meaning your input has to be in RGBA
+format with 4 bytes (unsigned chars) per pixel.
+
+LodePNGEncoderSettings encoder
+------------------------------
+
+The following settings are supported (some are in sub-structs):
+*) auto_convert: when this option is enabled, the encoder will
+automatically choose the smallest possible color mode (including color key) that
+can encode the colors of all pixels without information loss.
+*) btype: the block type for LZ77. 0 = uncompressed, 1 = fixed huffman tree,
+ 2 = dynamic huffman tree (best compression). Should be 2 for proper
+ compression.
+*) use_lz77: whether or not to use LZ77 for compressed block types. Should be
+ true for proper compression.
+*) windowsize: the window size used by the LZ77 encoder (1 - 32768). Has value
+ 2048 by default, but can be set to 32768 for better, but slow, compression.
+*) force_palette: if colortype is 2 or 6, you can make the encoder write a PLTE
+ chunk if force_palette is true. This can used as suggested palette to convert
+ to by viewers that don't support more than 256 colors (if those still exist)
+*) add_id: add text chunk "Encoder: LodePNG <version>" to the image.
+*) text_compression: default 1. If 1, it'll store texts as zTXt instead of tEXt chunks.
+ zTXt chunks use zlib compression on the text. This gives a smaller result on
+ large texts but a larger result on small texts (such as a single program name).
+ It's all tEXt or all zTXt though, there's no separate setting per text yet.
+
+
+6. color conversions
+--------------------
+
+An important thing to note about LodePNG, is that the color type of the PNG, and
+the color type of the raw image, are completely independent. By default, when
+you decode a PNG, you get the result as a raw image in the color type you want,
+no matter whether the PNG was encoded with a palette, greyscale or RGBA color.
+And if you encode an image, by default LodePNG will automatically choose the PNG
+color type that gives good compression based on the values of colors and amount
+of colors in the image. It can be configured to let you control it instead as
+well, though.
+
+To be able to do this, LodePNG does conversions from one color mode to another.
+It can convert from almost any color type to any other color type, except the
+following conversions: RGB to greyscale is not supported, and converting to a
+palette when the palette doesn't have a required color is not supported. This is
+not supported on purpose: this is information loss which requires a color
+reduction algorithm that is beyong the scope of a PNG encoder (yes, RGB to grey
+is easy, but there are multiple ways if you want to give some channels more
+weight).
+
+By default, when decoding, you get the raw image in 32-bit RGBA or 24-bit RGB
+color, no matter what color type the PNG has. And by default when encoding,
+LodePNG automatically picks the best color model for the output PNG, and expects
+the input image to be 32-bit RGBA or 24-bit RGB. So, unless you want to control
+the color format of the images yourself, you can skip this chapter.
+
+6.1. PNG color types
+--------------------
+
+A PNG image can have many color types, ranging from 1-bit color to 64-bit color,
+as well as palettized color modes. After the zlib decompression and unfiltering
+in the PNG image is done, the raw pixel data will have that color type and thus
+a certain amount of bits per pixel. If you want the output raw image after
+decoding to have another color type, a conversion is done by LodePNG.
+
+The PNG specification gives the following color types:
+
+0: greyscale, bit depths 1, 2, 4, 8, 16
+2: RGB, bit depths 8 and 16
+3: palette, bit depths 1, 2, 4 and 8
+4: greyscale with alpha, bit depths 8 and 16
+6: RGBA, bit depths 8 and 16
+
+Bit depth is the amount of bits per pixel per color channel. So the total amount
+of bits per pixel is: amount of channels * bitdepth.
+
+6.2. color conversions
+----------------------
+
+As explained in the sections about the encoder and decoder, you can specify
+color types and bit depths in info_png and info_raw to change the default
+behaviour.
+
+If, when decoding, you want the raw image to be something else than the default,
+you need to set the color type and bit depth you want in the LodePNGColorMode,
+or the parameters of the simple function of LodePNG you're using.
+
+If, when encoding, you use another color type than the default in the input
+image, you need to specify its color type and bit depth in the LodePNGColorMode
+of the raw image, or use the parameters of the simplefunction of LodePNG you're
+using.
+
+If, when encoding, you don't want LodePNG to choose the output PNG color type
+but control it yourself, you need to set auto_convert in the encoder settings
+to LAC_NONE, and specify the color type you want in the LodePNGInfo of the
+encoder.
+
+If you do any of the above, LodePNG may need to do a color conversion, which
+follows the rules below, and may sometimes not be allowed.
+
+To avoid some confusion:
+-the decoder converts from PNG to raw image
+-the encoder converts from raw image to PNG
+-the colortype and bitdepth in LodePNGColorMode info_raw, are those of the raw image
+-the colortype and bitdepth in the color field of LodePNGInfo info_png, are those of the PNG
+-when encoding, the color type in LodePNGInfo is ignored if auto_convert
+ is enabled, it is automatically generated instead
+-when decoding, the color type in LodePNGInfo is set by the decoder to that of the original
+ PNG image, but it can be ignored since the raw image has the color type you requested instead
+-if the color type of the LodePNGColorMode and PNG image aren't the same, a conversion
+ between the color types is done if the color types are supported. If it is not
+ supported, an error is returned. If the types are the same, no conversion is done.
+-even though some conversions aren't supported, LodePNG supports loading PNGs from any
+ colortype and saving PNGs to any colortype, sometimes it just requires preparing
+ the raw image correctly before encoding.
+-both encoder and decoder use the same color converter.
+
+Non supported color conversions:
+-color to greyscale: no error is thrown, but the result will look ugly because
+only the red channel is taken
+-anything, to palette when that palette does not have that color in it: in this
+case an error is thrown
+
+Supported color conversions:
+-anything to 8-bit RGB, 8-bit RGBA, 16-bit RGB, 16-bit RGBA
+-any grey or grey+alpha, to grey or grey+alpha
+-anything to a palette, as long as the palette has the requested colors in it
+-removing alpha channel
+-higher to smaller bitdepth, and vice versa
+
+If you want no color conversion to be done:
+-In the encoder, you can make it save a PNG with any color type by giving the
+raw color mode and LodePNGInfo the same color mode, and setting auto_convert to
+LAC_NO.
+-In the decoder, you can make it store the pixel data in the same color type
+as the PNG has, by setting the color_convert setting to false. Settings in
+info_raw are then ignored.
+
+The function lodepng_convert does the color conversion. It is available in the
+interface but normally isn't needed since the encoder and decoder already call
+it.
+
+6.3. padding bits
+-----------------
+
+In the PNG file format, if a less than 8-bit per pixel color type is used and the scanlines
+have a bit amount that isn't a multiple of 8, then padding bits are used so that each
+scanline starts at a fresh byte. But that is NOT true for the LodePNG raw input and output.
+The raw input image you give to the encoder, and the raw output image you get from the decoder
+will NOT have these padding bits, e.g. in the case of a 1-bit image with a width
+of 7 pixels, the first pixel of the second scanline will the the 8th bit of the first byte,
+not the first bit of a new byte.
+
+6.4. A note about 16-bits per channel and endianness
+----------------------------------------------------
+
+LodePNG uses unsigned char arrays for 16-bit per channel colors too, just like
+for any other color format. The 16-bit values are stored in big endian (most
+significant byte first) in these arrays. This is the opposite order of the
+little endian used by x86 CPU's.
+
+LodePNG always uses big endian because the PNG file format does so internally.
+Conversions to other formats than PNG uses internally are not supported by
+LodePNG on purpose, there are myriads of formats, including endianness of 16-bit
+colors, the order in which you store R, G, B and A, and so on. Supporting and
+converting to/from all that is outside the scope of LodePNG.
+
+This may mean that, depending on your use case, you may want to convert the big
+endian output of LodePNG to little endian with a for loop. This is certainly not
+always needed, many applications and libraries support big endian 16-bit colors
+anyway, but it means you cannot simply cast the unsigned char* buffer to an
+unsigned short* buffer on x86 CPUs.
+
+
+7. error values
+---------------
+
+All functions in LodePNG that return an error code, return 0 if everything went
+OK, or a non-zero code if there was an error.
+
+The meaning of the LodePNG error values can be retrieved with the function
+lodepng_error_text: given the numerical error code, it returns a description
+of the error in English as a string.
+
+Check the implementation of lodepng_error_text to see the meaning of each code.
+
+
+8. chunks and PNG editing
+-------------------------
+
+If you want to add extra chunks to a PNG you encode, or use LodePNG for a PNG
+editor that should follow the rules about handling of unknown chunks, or if your
+program is able to read other types of chunks than the ones handled by LodePNG,
+then that's possible with the chunk functions of LodePNG.
+
+A PNG chunk has the following layout:
+
+4 bytes length
+4 bytes type name
+length bytes data
+4 bytes CRC
+
+8.1. iterating through chunks
+-----------------------------
+
+If you have a buffer containing the PNG image data, then the first chunk (the
+IHDR chunk) starts at byte number 8 of that buffer. The first 8 bytes are the
+signature of the PNG and are not part of a chunk. But if you start at byte 8
+then you have a chunk, and can check the following things of it.
+
+NOTE: none of these functions check for memory buffer boundaries. To avoid
+exploits, always make sure the buffer contains all the data of the chunks.
+When using lodepng_chunk_next, make sure the returned value is within the
+allocated memory.
+
+unsigned lodepng_chunk_length(const unsigned char* chunk):
+
+Get the length of the chunk's data. The total chunk length is this length + 12.
+
+void lodepng_chunk_type(char type[5], const unsigned char* chunk):
+unsigned char lodepng_chunk_type_equals(const unsigned char* chunk, const char* type):
+
+Get the type of the chunk or compare if it's a certain type
+
+unsigned char lodepng_chunk_critical(const unsigned char* chunk):
+unsigned char lodepng_chunk_private(const unsigned char* chunk):
+unsigned char lodepng_chunk_safetocopy(const unsigned char* chunk):
+
+Check if the chunk is critical in the PNG standard (only IHDR, PLTE, IDAT and IEND are).
+Check if the chunk is private (public chunks are part of the standard, private ones not).
+Check if the chunk is safe to copy. If it's not, then, when modifying data in a critical
+chunk, unsafe to copy chunks of the old image may NOT be saved in the new one if your
+program doesn't handle that type of unknown chunk.
+
+unsigned char* lodepng_chunk_data(unsigned char* chunk):
+const unsigned char* lodepng_chunk_data_const(const unsigned char* chunk):
+
+Get a pointer to the start of the data of the chunk.
+
+unsigned lodepng_chunk_check_crc(const unsigned char* chunk):
+void lodepng_chunk_generate_crc(unsigned char* chunk):
+
+Check if the crc is correct or generate a correct one.
+
+unsigned char* lodepng_chunk_next(unsigned char* chunk):
+const unsigned char* lodepng_chunk_next_const(const unsigned char* chunk):
+
+Iterate to the next chunk. This works if you have a buffer with consecutive chunks. Note that these
+functions do no boundary checking of the allocated data whatsoever, so make sure there is enough
+data available in the buffer to be able to go to the next chunk.
+
+unsigned lodepng_chunk_append(unsigned char** out, size_t* outlength, const unsigned char* chunk):
+unsigned lodepng_chunk_create(unsigned char** out, size_t* outlength, unsigned length,
+ const char* type, const unsigned char* data):
+
+These functions are used to create new chunks that are appended to the data in *out that has
+length *outlength. The append function appends an existing chunk to the new data. The create
+function creates a new chunk with the given parameters and appends it. Type is the 4-letter
+name of the chunk.
+
+8.2. chunks in info_png
+-----------------------
+
+The LodePNGInfo struct contains fields with the unknown chunk in it. It has 3
+buffers (each with size) to contain 3 types of unknown chunks:
+the ones that come before the PLTE chunk, the ones that come between the PLTE
+and the IDAT chunks, and the ones that come after the IDAT chunks.
+It's necessary to make the distionction between these 3 cases because the PNG
+standard forces to keep the ordering of unknown chunks compared to the critical
+chunks, but does not force any other ordering rules.
+
+info_png.unknown_chunks_data[0] is the chunks before PLTE
+info_png.unknown_chunks_data[1] is the chunks after PLTE, before IDAT
+info_png.unknown_chunks_data[2] is the chunks after IDAT
+
+The chunks in these 3 buffers can be iterated through and read by using the same
+way described in the previous subchapter.
+
+When using the decoder to decode a PNG, you can make it store all unknown chunks
+if you set the option settings.remember_unknown_chunks to 1. By default, this
+option is off (0).
+
+The encoder will always encode unknown chunks that are stored in the info_png.
+If you need it to add a particular chunk that isn't known by LodePNG, you can
+use lodepng_chunk_append or lodepng_chunk_create to the chunk data in
+info_png.unknown_chunks_data[x].
+
+Chunks that are known by LodePNG should not be added in that way. E.g. to make
+LodePNG add a bKGD chunk, set background_defined to true and add the correct
+parameters there instead.
+
+
+9. compiler support
+-------------------
+
+No libraries other than the current standard C library are needed to compile
+LodePNG. For the C++ version, only the standard C++ library is needed on top.
+Add the files lodepng.c(pp) and lodepng.h to your project, include
+lodepng.h where needed, and your program can read/write PNG files.
+
+If performance is important, use optimization when compiling! For both the
+encoder and decoder, this makes a large difference.
+
+Make sure that LodePNG is compiled with the same compiler of the same version
+and with the same settings as the rest of the program, or the interfaces with
+std::vectors and std::strings in C++ can be incompatible.
+
+CHAR_BITS must be 8 or higher, because LodePNG uses unsigned chars for octets.
+
+*) gcc and g++
+
+LodePNG is developed in gcc so this compiler is natively supported. It gives no
+warnings with compiler options "-Wall -Wextra -pedantic -ansi", with gcc and g++
+version 4.7.1 on Linux, 32-bit and 64-bit.
+
+*) Mingw
+
+The Mingw compiler (a port of gcc) for Windows is fully supported by LodePNG.
+
+*) Visual Studio 2005 and up, Visual C++ Express Edition 2005 and up
+
+Visual Studio may give warnings about 'fopen' being deprecated. A multiplatform library
+can't support the proposed Visual Studio alternative however, so LodePNG keeps using
+fopen. If you don't want to see the deprecated warnings, put this on top of lodepng.h
+before the inclusions:
+#define _CRT_SECURE_NO_DEPRECATE
+
+Other than the above warnings, LodePNG should be warning-free with warning
+level 3 (W3). Warning level 4 (W4) will give warnings about integer conversions.
+I'm not planning to resolve these warnings. To get rid of them, let Visual
+Studio use warning level W3 for lodepng.cpp only: right click lodepng.cpp,
+Properties, C/C++, General, Warning Level: Level 3 (/W3).
+
+Visual Studio may want "stdafx.h" files to be included in each source file and
+give an error "unexpected end of file while looking for precompiled header".
+That is not standard C++ and will not be added to the stock LodePNG. You can
+disable it for lodepng.cpp only by right clicking it, Properties, C/C++,
+Precompiled Headers, and set it to Not Using Precompiled Headers there.
+
+*) Visual Studio 6.0
+
+LodePNG support for Visual Studio 6.0 is not guaranteed because VS6 doesn't
+follow the C++ standard correctly.
+
+*) Comeau C/C++
+
+Vesion 20070107 compiles without problems on the Comeau C/C++ Online Test Drive
+at http://www.comeaucomputing.com/tryitout in both C90 and C++ mode.
+
+*) Compilers on Macintosh
+
+LodePNG has been reported to work both with the gcc and LLVM for Macintosh, both
+for C and C++.
+
+*) Other Compilers
+
+If you encounter problems on other compilers, feel free to let me know and I may
+try to fix it if the compiler is modern standards complient.
+
+
+10. examples
+------------
+
+This decoder example shows the most basic usage of LodePNG. More complex
+examples can be found on the LodePNG website.
+
+10.1. decoder C++ example
+-------------------------
+
+#include "lodepng.h"
+#include <iostream>
+
+int main(int argc, char *argv[])
+{
+ const char* filename = argc > 1 ? argv[1] : "test.png";
+
+ //load and decode
+ std::vector<unsigned char> image;
+ unsigned width, height;
+ unsigned error = lodepng::decode(image, width, height, filename);
+
+ //if there's an error, display it
+ if(error) std::cout << "decoder error " << error << ": " << lodepng_error_text(error) << std::endl;
+
+ //the pixels are now in the vector "image", 4 bytes per pixel, ordered RGBARGBA..., use it as texture, draw it, ...
+}
+
+10.2. decoder C example
+-----------------------
+
+#include "lodepng.h"
+
+int main(int argc, char *argv[])
+{
+ unsigned error;
+ unsigned char* image;
+ size_t width, height;
+ const char* filename = argc > 1 ? argv[1] : "test.png";
+
+ error = lodepng_decode32_file(&image, &width, &height, filename);
+
+ if(error) printf("decoder error %u: %s\n", error, lodepng_error_text(error));
+
+ / * use image here * /
+
+ free(image);
+ return 0;
+}
+
+
+11. changes
+-----------
+
+The version number of LodePNG is the date of the change given in the format
+yyyymmdd.
+
+Some changes aren't backwards compatible. Those are indicated with a (!)
+symbol.
+
+*) 22 dec 2013: Power of two windowsize required for optimization.
+*) 15 apr 2013: Fixed bug with LAC_ALPHA and color key.
+*) 25 mar 2013: Added an optional feature to ignore some PNG errors (fix_png).
+*) 11 mar 2013 (!): Bugfix with custom free. Changed from "my" to "lodepng_"
+ prefix for the custom allocators and made it possible with a new #define to
+ use custom ones in your project without needing to change lodepng's code.
+*) 28 jan 2013: Bugfix with color key.
+*) 27 okt 2012: Tweaks in text chunk keyword length error handling.
+*) 8 okt 2012 (!): Added new filter strategy (entropy) and new auto color mode.
+ (no palette). Better deflate tree encoding. New compression tweak settings.
+ Faster color conversions while decoding. Some internal cleanups.
+*) 23 sep 2012: Reduced warnings in Visual Studio a little bit.
+*) 1 sep 2012 (!): Removed #define's for giving custom (de)compression functions
+ and made it work with function pointers instead.
+*) 23 jun 2012: Added more filter strategies. Made it easier to use custom alloc
+ and free functions and toggle #defines from compiler flags. Small fixes.
+*) 6 may 2012 (!): Made plugging in custom zlib/deflate functions more flexible.
+*) 22 apr 2012 (!): Made interface more consistent, renaming a lot. Removed
+ redundant C++ codec classes. Reduced amount of structs. Everything changed,
+ but it is cleaner now imho and functionality remains the same. Also fixed
+ several bugs and shrinked the implementation code. Made new samples.
+*) 6 nov 2011 (!): By default, the encoder now automatically chooses the best
+ PNG color model and bit depth, based on the amount and type of colors of the
+ raw image. For this, autoLeaveOutAlphaChannel replaced by auto_choose_color.
+*) 9 okt 2011: simpler hash chain implementation for the encoder.
+*) 8 sep 2011: lz77 encoder lazy matching instead of greedy matching.
+*) 23 aug 2011: tweaked the zlib compression parameters after benchmarking.
+ A bug with the PNG filtertype heuristic was fixed, so that it chooses much
+ better ones (it's quite significant). A setting to do an experimental, slow,
+ brute force search for PNG filter types is added.
+*) 17 aug 2011 (!): changed some C zlib related function names.
+*) 16 aug 2011: made the code less wide (max 120 characters per line).
+*) 17 apr 2011: code cleanup. Bugfixes. Convert low to 16-bit per sample colors.
+*) 21 feb 2011: fixed compiling for C90. Fixed compiling with sections disabled.
+*) 11 dec 2010: encoding is made faster, based on suggestion by Peter Eastman
+ to optimize long sequences of zeros.
+*) 13 nov 2010: added LodePNG_InfoColor_hasPaletteAlpha and
+ LodePNG_InfoColor_canHaveAlpha functions for convenience.
+*) 7 nov 2010: added LodePNG_error_text function to get error code description.
+*) 30 okt 2010: made decoding slightly faster
+*) 26 okt 2010: (!) changed some C function and struct names (more consistent).
+ Reorganized the documentation and the declaration order in the header.
+*) 08 aug 2010: only changed some comments and external samples.
+*) 05 jul 2010: fixed bug thanks to warnings in the new gcc version.
+*) 14 mar 2010: fixed bug where too much memory was allocated for char buffers.
+*) 02 sep 2008: fixed bug where it could create empty tree that linux apps could
+ read by ignoring the problem but windows apps couldn't.
+*) 06 jun 2008: added more error checks for out of memory cases.
+*) 26 apr 2008: added a few more checks here and there to ensure more safety.
+*) 06 mar 2008: crash with encoding of strings fixed
+*) 02 feb 2008: support for international text chunks added (iTXt)
+*) 23 jan 2008: small cleanups, and #defines to divide code in sections
+*) 20 jan 2008: support for unknown chunks allowing using LodePNG for an editor.
+*) 18 jan 2008: support for tIME and pHYs chunks added to encoder and decoder.
+*) 17 jan 2008: ability to encode and decode compressed zTXt chunks added
+ Also vareous fixes, such as in the deflate and the padding bits code.
+*) 13 jan 2008: Added ability to encode Adam7-interlaced images. Improved
+ filtering code of encoder.
+*) 07 jan 2008: (!) changed LodePNG to use ISO C90 instead of C++. A
+ C++ wrapper around this provides an interface almost identical to before.
+ Having LodePNG be pure ISO C90 makes it more portable. The C and C++ code
+ are together in these files but it works both for C and C++ compilers.
+*) 29 dec 2007: (!) changed most integer types to unsigned int + other tweaks
+*) 30 aug 2007: bug fixed which makes this Borland C++ compatible
+*) 09 aug 2007: some VS2005 warnings removed again
+*) 21 jul 2007: deflate code placed in new namespace separate from zlib code
+*) 08 jun 2007: fixed bug with 2- and 4-bit color, and small interlaced images
+*) 04 jun 2007: improved support for Visual Studio 2005: crash with accessing
+ invalid std::vector element [0] fixed, and level 3 and 4 warnings removed
+*) 02 jun 2007: made the encoder add a tag with version by default
+*) 27 may 2007: zlib and png code separated (but still in the same file),
+ simple encoder/decoder functions added for more simple usage cases
+*) 19 may 2007: minor fixes, some code cleaning, new error added (error 69),
+ moved some examples from here to lodepng_examples.cpp
+*) 12 may 2007: palette decoding bug fixed
+*) 24 apr 2007: changed the license from BSD to the zlib license
+*) 11 mar 2007: very simple addition: ability to encode bKGD chunks.
+*) 04 mar 2007: (!) tEXt chunk related fixes, and support for encoding
+ palettized PNG images. Plus little interface change with palette and texts.
+*) 03 mar 2007: Made it encode dynamic Huffman shorter with repeat codes.
+ Fixed a bug where the end code of a block had length 0 in the Huffman tree.
+*) 26 feb 2007: Huffman compression with dynamic trees (BTYPE 2) now implemented
+ and supported by the encoder, resulting in smaller PNGs at the output.
+*) 27 jan 2007: Made the Adler-32 test faster so that a timewaste is gone.
+*) 24 jan 2007: gave encoder an error interface. Added color conversion from any
+ greyscale type to 8-bit greyscale with or without alpha.
+*) 21 jan 2007: (!) Totally changed the interface. It allows more color types
+ to convert to and is more uniform. See the manual for how it works now.
+*) 07 jan 2007: Some cleanup & fixes, and a few changes over the last days:
+ encode/decode custom tEXt chunks, separate classes for zlib & deflate, and
+ at last made the decoder give errors for incorrect Adler32 or Crc.
+*) 01 jan 2007: Fixed bug with encoding PNGs with less than 8 bits per channel.
+*) 29 dec 2006: Added support for encoding images without alpha channel, and
+ cleaned out code as well as making certain parts faster.
+*) 28 dec 2006: Added "Settings" to the encoder.
+*) 26 dec 2006: The encoder now does LZ77 encoding and produces much smaller files now.
+ Removed some code duplication in the decoder. Fixed little bug in an example.
+*) 09 dec 2006: (!) Placed output parameters of public functions as first parameter.
+ Fixed a bug of the decoder with 16-bit per color.
+*) 15 okt 2006: Changed documentation structure
+*) 09 okt 2006: Encoder class added. It encodes a valid PNG image from the
+ given image buffer, however for now it's not compressed.
+*) 08 sep 2006: (!) Changed to interface with a Decoder class
+*) 30 jul 2006: (!) LodePNG_InfoPng , width and height are now retrieved in different
+ way. Renamed decodePNG to decodePNGGeneric.
+*) 29 jul 2006: (!) Changed the interface: image info is now returned as a
+ struct of type LodePNG::LodePNG_Info, instead of a vector, which was a bit clumsy.
+*) 28 jul 2006: Cleaned the code and added new error checks.
+ Corrected terminology "deflate" into "inflate".
+*) 23 jun 2006: Added SDL example in the documentation in the header, this
+ example allows easy debugging by displaying the PNG and its transparency.
+*) 22 jun 2006: (!) Changed way to obtain error value. Added
+ loadFile function for convenience. Made decodePNG32 faster.
+*) 21 jun 2006: (!) Changed type of info vector to unsigned.
+ Changed position of palette in info vector. Fixed an important bug that
+ happened on PNGs with an uncompressed block.
+*) 16 jun 2006: Internally changed unsigned into unsigned where
+ needed, and performed some optimizations.
+*) 07 jun 2006: (!) Renamed functions to decodePNG and placed them
+ in LodePNG namespace. Changed the order of the parameters. Rewrote the
+ documentation in the header. Renamed files to lodepng.cpp and lodepng.h
+*) 22 apr 2006: Optimized and improved some code
+*) 07 sep 2005: (!) Changed to std::vector interface
+*) 12 aug 2005: Initial release (C++, decoder only)
+
+
+12. contact information
+-----------------------
+
+Feel free to contact me with suggestions, problems, comments, ... concerning
+LodePNG. If you encounter a PNG image that doesn't work properly with this
+decoder, feel free to send it and I'll use it to find and fix the problem.
+
+My email address is (puzzle the account and domain together with an @ symbol):
+Domain: gmail dot com.
+Account: lode dot vandevenne.
+
+
+Copyright (c) 2005-2013 Lode Vandevenne
+*/
diff --git a/plugingui/nativewindow.h b/plugingui/nativewindow.h
new file mode 100644
index 0000000..d68909d
--- /dev/null
+++ b/plugingui/nativewindow.h
@@ -0,0 +1,57 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * nativewindow.h
+ *
+ * Fri Dec 28 18:46:01 CET 2012
+ * Copyright 2012 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_NATIVEWINDOW_H__
+#define __DRUMGIZMO_NATIVEWINDOW_H__
+
+#include <string>
+
+#include "guievent.h"
+
+namespace GUI {
+
+class NativeWindow {
+public:
+ NativeWindow() {}
+ virtual ~NativeWindow() {}
+
+ virtual void setFixedSize(int width, int height) = 0;
+ virtual void resize(int width, int height) = 0;
+ virtual void move(int x, int y) = 0;
+ virtual void show() = 0;
+ virtual void setCaption(const std::string &caption) = 0;
+ virtual void hide() = 0;
+ virtual void handleBuffer() = 0;
+ virtual void redraw() = 0;
+ virtual void grabMouse(bool grab) = 0;
+
+ virtual bool hasEvent() = 0;
+ virtual Event *getNextEvent() = 0;
+};
+
+};
+
+#endif/*__DRUMGIZMO_NATIVEWINDOW_H__*/
diff --git a/plugingui/nativewindow_pugl.cc b/plugingui/nativewindow_pugl.cc
new file mode 100644
index 0000000..45cddab
--- /dev/null
+++ b/plugingui/nativewindow_pugl.cc
@@ -0,0 +1,212 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * nativewindow_pugl.cc
+ *
+ * Fri Dec 28 18:45:57 CET 2012
+ * Copyright 2012 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "nativewindow_pugl.h"
+
+#include <stdlib.h>
+#include <list>
+
+#include "hugin.hpp"
+#include "guievent.h"
+
+static GUI::Window* windowptr;
+static std::list<GUI::Event*> eventq;
+
+static void onDisplay(PuglView* view)
+{
+
+ glDisable(GL_DEPTH_TEST);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ GLuint image;
+
+ glGenTextures(1, &image);
+
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); //GL_NEAREST = no smoothing
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexEnvi(GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE, GL_REPLACE);
+
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, windowptr->wpixbuf.width,
+ windowptr->wpixbuf.height, 0, GL_RGB, GL_UNSIGNED_BYTE,
+ windowptr->wpixbuf.buf);
+
+ glEnable(GL_TEXTURE_2D);
+
+ glBegin(GL_QUADS);
+ glTexCoord2d(0.0, 0.0); glVertex2f(0.0, 0.0);
+ glTexCoord2d(0.0, 1.0); glVertex2f(0.0, windowptr->wpixbuf.height);
+ glTexCoord2d(1.0, 1.0); glVertex2f(windowptr->wpixbuf.width, windowptr->wpixbuf.height);
+ glTexCoord2d(1.0, 0.0); glVertex2f(windowptr->wpixbuf.width, 0.0);
+ glEnd();
+
+ glDeleteTextures(1, &image);
+ glDisable(GL_TEXTURE_2D);
+ glFlush();
+
+ puglPostRedisplay(view);
+}
+
+static void onMouse(PuglView* view, int button, bool press, int x, int y)
+{
+ DEBUG(nativewindow_pugl, "Mouse %d %s at (%d,%d)\n", button,
+ press? "down":"up", x, y);
+
+ GUI::ButtonEvent* e = new GUI::ButtonEvent();
+ e->x = x;
+ e->y = y;
+ e->button = button;
+ e->direction = press?1:-1;
+ e->doubleclick = false;
+
+ eventq.push_back(e);
+}
+
+static void onKeyboard(PuglView* view, bool press, uint32_t key)
+{
+ if(press) {
+ GUI::KeyEvent* e = new GUI::KeyEvent();
+ e->direction = press?-1:1;
+
+ printf("%d\n", key);
+
+ switch(key) {
+ case PUGL_KEY_LEFT: e->keycode = GUI::KeyEvent::KEY_LEFT; break;
+ case PUGL_KEY_RIGHT: e->keycode = GUI::KeyEvent::KEY_RIGHT; break;
+ case PUGL_KEY_UP: e->keycode = GUI::KeyEvent::KEY_UP; break;
+ case PUGL_KEY_DOWN: e->keycode = GUI::KeyEvent::KEY_DOWN; break;
+ case PUGL_KEY_PAGE_UP: e->keycode = GUI::KeyEvent::KEY_PGDOWN; break;
+ case PUGL_KEY_PAGE_DOWN: e->keycode = GUI::KeyEvent::KEY_PGUP; break;
+ default: e->keycode = GUI::KeyEvent::KEY_UNKNOWN; break;
+ }
+
+ // TODO: perform character type check
+ if(e->keycode == GUI::KeyEvent::KEY_UNKNOWN) {
+ e->keycode = GUI::KeyEvent::KEY_CHARACTER;
+ e->text.assign(1, (char)key);
+ }
+
+ printf("\t text: %s\n", e->text.c_str());
+
+ eventq.push_back(e);
+ }
+}
+
+GUI::NativeWindowPugl::NativeWindowPugl(GUI::Window *window)
+ : GUI::NativeWindow()
+{
+ INFO(nativewindow, "Running with PuGL native window\n");
+ this->window = window;
+ windowptr = window;
+ view = NULL;
+ init();
+}
+
+GUI::NativeWindowPugl::~NativeWindowPugl()
+{
+ puglDestroy(view);
+}
+
+void GUI::NativeWindowPugl::init() {
+ PuglView* old = view;
+ if(view) old = view;
+// view = puglCreate(0, "DrumgGizmo", window->x(), window->y(), false, true);
+ view = puglCreate(0, "DrumgGizmo", 370, 330, false, true);
+ puglSetDisplayFunc(view, onDisplay);
+ puglSetMouseFunc(view, onMouse);
+ puglSetKeyboardFunc(view, onKeyboard);
+
+ if(old) free(old);
+}
+
+void GUI::NativeWindowPugl::setFixedSize(int width, int height)
+{
+// redraw();
+}
+
+void GUI::NativeWindowPugl::resize(int width, int height)
+{
+// DEBUG(nativewindow_pugl, "Resizing to %dx%d\n", width, height);
+// init();
+// redraw();
+}
+
+void GUI::NativeWindowPugl::move(int x, int y)
+{
+// redraw();
+}
+
+void GUI::NativeWindowPugl::show()
+{
+// redraw();
+}
+
+void GUI::NativeWindowPugl::hide()
+{
+// redraw();
+}
+
+void GUI::NativeWindowPugl::handleBuffer()
+{
+ onDisplay(view);
+}
+
+void GUI::NativeWindowPugl::redraw()
+{
+// handleBuffer();
+}
+
+void GUI::NativeWindowPugl::setCaption(const std::string &caption)
+{
+// redraw();
+}
+
+void GUI::NativeWindowPugl::grabMouse(bool grab)
+{
+// redraw();
+}
+
+bool GUI::NativeWindowPugl::hasEvent()
+{
+ // dirty hack - assume that this function is called enough times to get fluent gui
+ // ^^ Bad assumption
+ puglProcessEvents(view);
+ return !eventq.empty();
+}
+
+GUI::Event *GUI::NativeWindowPugl::getNextEvent()
+{
+ Event *event = NULL;
+
+ if(!eventq.empty()) {
+ event = eventq.front();
+ eventq.pop_front();
+ }
+ return event;
+}
diff --git a/plugingui/nativewindow_pugl.h b/plugingui/nativewindow_pugl.h
new file mode 100644
index 0000000..cf761fd
--- /dev/null
+++ b/plugingui/nativewindow_pugl.h
@@ -0,0 +1,72 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * nativewindow_pugl.h
+ *
+ * Fri Dec 28 18:45:56 CET 2012
+ * Copyright 2012 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_NATIVEWINDOW_PUGL_H__
+#define __DRUMGIZMO_NATIVEWINDOW_PUGL_H__
+#endif/*__DRUMGIZMO_NATIVEWINDOW_PUGL_H__*/
+
+#include "nativewindow.h"
+
+#include "window.h"
+
+#include "pugl.h"
+
+#ifdef __APPLE__
+# include <OpenGL/glu.h>
+#else
+# include <GL/glu.h>
+# include <GL/glext.h>
+# include <GL/gl.h>
+#endif
+
+namespace GUI {
+
+class Window;
+class NativeWindowPugl : public NativeWindow {
+public:
+ NativeWindowPugl(GUI::Window *window);
+ ~NativeWindowPugl();
+
+ void init();
+ void setFixedSize(int width, int height);
+ void resize(int width, int height);
+ void move(int x, int y);
+ void show();
+ void setCaption(const std::string &caption);
+ void hide();
+ void handleBuffer();
+ void redraw();
+ void grabMouse(bool grab);
+
+ bool hasEvent();
+ Event *getNextEvent();
+
+private:
+ GUI::Window *window;
+ PuglView* view;
+};
+
+};
diff --git a/plugingui/nativewindow_win32.cc b/plugingui/nativewindow_win32.cc
new file mode 100644
index 0000000..871bafe
--- /dev/null
+++ b/plugingui/nativewindow_win32.cc
@@ -0,0 +1,400 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * nativewindow_win32.cc
+ *
+ * Fri Dec 28 18:45:52 CET 2012
+ * Copyright 2012 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "nativewindow_win32.h"
+
+#ifdef WIN32
+
+#include "window.h"
+
+LRESULT CALLBACK dialogProc(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp)
+{
+ GUI::NativeWindowWin32 *native =
+ (GUI::NativeWindowWin32 *)GetWindowLongPtr(hwnd, GWLP_USERDATA);
+
+ // NOTE: 'native' is NULL intil the WM_CREATE message has been handled.
+ if(!native) return DefWindowProc(hwnd, msg, wp, lp);
+
+ GUI::Window *window = native->window;
+
+ switch(msg) {
+ case WM_SIZE:
+ {
+ static bool first = true;
+ if(!first) {
+ GUI::ResizeEvent *e = new GUI::ResizeEvent();
+ e->width = LOWORD(lp);
+ e->height = HIWORD(lp);
+ native->event = e;
+ first = false;
+ }
+ }
+ break;
+
+ case WM_MOVE:
+ {
+// GUI::MoveEvent *e = new GUI::MoveEvent();
+// e->x = (int)(short) LOWORD(lp);
+// e->y = (int)(short) HIWORD(lp);
+// native->event = e;
+ }
+ break;
+
+ case WM_CLOSE:
+ {
+ GUI::CloseEvent *e = new GUI::CloseEvent();
+ native->event = e;
+ }
+ break;
+// HWND child, old;
+// old = 0;
+
+// numDialogs--;
+
+// while(old != (child = GetNextDlgGroupItem(hwnd, hwnd, false))) {
+// old = child;
+// EndDialog(child, 0);
+// }
+
+// if(numDialogs) EndDialog(hwnd, 0);
+// else PostQuitMessage(0);
+// return 0;
+ case WM_MOUSEMOVE:
+ {
+
+ GUI::MouseMoveEvent *e = new GUI::MouseMoveEvent();
+ e->x = (int)(short) LOWORD(lp);
+ e->y = (int)(short) HIWORD(lp);
+ native->event = e;
+ }
+ break;
+
+ case WM_MOUSEWHEEL:
+ {
+ GUI::ScrollEvent *e = new GUI::ScrollEvent();
+
+ // NOTE: lp is coordinates in screen space, not client space.
+ POINT p;
+ p.x = (int)(short) LOWORD(lp);
+ p.y = (int)(short) HIWORD(lp);
+ ScreenToClient(hwnd, &p);
+
+ e->x = p.x;
+ e->y = p.y;
+ e->delta = -1 * (short)HIWORD(wp) / 60;
+ native->event = e;
+ }
+ break;
+
+ case WM_LBUTTONUP:
+ case WM_LBUTTONDBLCLK:
+ case WM_LBUTTONDOWN:
+ case WM_RBUTTONUP:
+ case WM_RBUTTONDBLCLK:
+ case WM_RBUTTONDOWN:
+ case WM_MBUTTONUP:
+ case WM_MBUTTONDBLCLK:
+ case WM_MBUTTONDOWN:
+ {
+ GUI::ButtonEvent *e = new GUI::ButtonEvent();
+ e->x = (int)(short) LOWORD(lp);
+ e->y = (int)(short) HIWORD(lp);
+
+ if(msg == WM_LBUTTONUP ||
+ msg == WM_LBUTTONDBLCLK ||
+ msg == WM_LBUTTONDOWN) e->button = 0;
+
+ if(msg == WM_RBUTTONUP ||
+ msg == WM_RBUTTONDBLCLK ||
+ msg == WM_RBUTTONDOWN) e->button = 1;
+
+ if(msg == WM_MBUTTONUP ||
+ msg == WM_MBUTTONDBLCLK ||
+ msg == WM_MBUTTONDOWN) e->button = 2;
+
+ e->direction = 0;
+ if(msg == WM_LBUTTONUP ||
+ msg == WM_RBUTTONUP ||
+ msg == WM_MBUTTONUP) e->direction = -1;
+
+ if(msg == WM_LBUTTONDOWN ||
+ msg == WM_RBUTTONDOWN ||
+ msg == WM_MBUTTONDOWN) e->direction = 1;
+
+ e->doubleclick = (msg == WM_LBUTTONDBLCLK ||
+ msg == WM_RBUTTONDBLCLK ||
+ msg == WM_MBUTTONDBLCLK);
+
+ native->event = e;
+ }
+ break;
+
+ case WM_KEYDOWN:
+ {
+ GUI::KeyEvent *e = new GUI::KeyEvent();
+ //printf("wp: %d\n", wp);
+ switch(wp) {
+ case 37: e->keycode = GUI::KeyEvent::KEY_LEFT; break;
+ case 39: e->keycode = GUI::KeyEvent::KEY_RIGHT; break;
+ case 38: e->keycode = GUI::KeyEvent::KEY_UP; break;
+ case 40: e->keycode = GUI::KeyEvent::KEY_DOWN; break;
+ case 8: e->keycode = GUI::KeyEvent::KEY_BACKSPACE; break;
+ case 46: e->keycode = GUI::KeyEvent::KEY_DELETE; break;
+ case 36: e->keycode = GUI::KeyEvent::KEY_HOME; break;
+ case 35: e->keycode = GUI::KeyEvent::KEY_END; break;
+ case 33: e->keycode = GUI::KeyEvent::KEY_PGUP; break;
+ case 34: e->keycode = GUI::KeyEvent::KEY_PGDOWN; break;
+ case 13: e->keycode = GUI::KeyEvent::KEY_ENTER; break;
+ default: e->keycode = GUI::KeyEvent::KEY_UNKNOWN; break;
+ }
+ e->text = "";
+ e->direction = -1;
+ native->event = e;
+ }
+ break;
+
+ case WM_CHAR:
+ {
+ //printf("WM_CHAR %d %d\n", (int)lp, (int)wp);
+ if(wp >= ' ') { // Filter control chars.
+ GUI::KeyEvent *e = new GUI::KeyEvent();
+ e->keycode = GUI::KeyEvent::KEY_CHARACTER;
+ e->text += (char)wp;
+ e->direction = -1;
+ native->event = e;
+ }
+ }
+ break;
+
+ case WM_PAINT:
+ {
+ GUI::RepaintEvent *e = new GUI::RepaintEvent();
+ e->x = 0;
+ e->y = 0;
+ e->width = 100;
+ e->height = 100;
+ native->event = e;
+
+ // Move to window.h (in class)
+ HDC pDC;
+ HBITMAP old;
+ HBITMAP ourbitmap;
+ int * framebuf;
+ GUI::PixelBuffer &px = window->wpixbuf;
+
+ { // Create bitmap (move to window.cc)
+ HDC hDC;
+ BITMAPINFO bitmapinfo;
+ hDC = CreateCompatibleDC(NULL);
+ bitmapinfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+ bitmapinfo.bmiHeader.biWidth = px.width;
+ bitmapinfo.bmiHeader.biHeight = -px.height; /* top-down */
+ bitmapinfo.bmiHeader.biPlanes = 1;
+ bitmapinfo.bmiHeader.biBitCount = 32;
+ bitmapinfo.bmiHeader.biCompression = BI_RGB;
+ bitmapinfo.bmiHeader.biSizeImage = 0;
+ bitmapinfo.bmiHeader.biClrUsed = 256;
+ bitmapinfo.bmiHeader.biClrImportant = 256;
+ ourbitmap=CreateDIBSection(hDC, &bitmapinfo,
+ DIB_RGB_COLORS, (void**)&framebuf, 0, 0);
+ pDC=CreateCompatibleDC(NULL);
+ old = (HBITMAP__*)SelectObject(pDC, ourbitmap);
+ DeleteDC(hDC);
+ }
+
+ { // Copy GUI::PixelBuffer to framebuffer (move to window.cc)
+ int i,j,k;
+ for (k=0,i=0;i<(int)px.height;i++) {
+ for (j=0;j<(int)px.width;j++,k++) {
+ *(framebuf+k)=RGB(px.buf[(j + i * px.width) * 3 + 2],
+ px.buf[(j + i * px.width) * 3 + 1],
+ px.buf[(j + i * px.width) * 3 + 0]);
+ }
+ }
+ }
+
+ PAINTSTRUCT ps;
+ HDC hdc = BeginPaint(native->m_hwnd, &ps);
+ BitBlt(hdc, 0, 0, px.width, px.height, pDC, 0, 0, SRCCOPY);
+ EndPaint(native->m_hwnd, &ps);
+
+ { // Destroy bitmap (move to window.cc)
+ SelectObject(pDC,old);
+ DeleteDC(pDC);
+ DeleteObject(ourbitmap);
+
+ }
+ }
+ return DefWindowProc(hwnd, msg, wp, lp);
+ }
+
+ return DefWindowProc(hwnd, msg, wp, lp);
+}
+
+// Delared in eventhandler.cc
+LRESULT CALLBACK dialogProc(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp);
+
+GUI::NativeWindowWin32::NativeWindowWin32(GUI::Window *window)
+ : GUI::NativeWindow()
+{
+ this->window = window;
+
+ WNDCLASSEX wcex;
+ WNDID wndId;
+
+ m_hwnd = 0;
+ m_className = NULL;
+ event = NULL;
+
+ memset(&wcex, 0, sizeof(wcex));
+
+ //Time to register a window class.
+ //Generic flags and everything. cbWndExtra is the size of a pointer to an
+ // object - we need this in the wndproc handler.
+
+ wcex.cbSize = sizeof(WNDCLASSEX);
+ wcex.style = CS_DBLCLKS;//class_style;
+ wcex.lpfnWndProc = (WNDPROC)dialogProc;
+ wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
+ // Set data:
+ wcex.cbWndExtra = sizeof(NativeWindowWin32*); // Size of data.
+ wcex.hInstance = GetModuleHandle(NULL);
+
+ // if(ex_style && WS_EX_TRANSPARENT == WS_EX_TRANSPARENT) {
+ // wcex.hbrBackground = NULL;
+ // } else {
+ wcex.hbrBackground = NULL;//(HBRUSH) COLOR_BACKGROUND + 1;
+ // }
+
+ wcex.lpszClassName = m_className = strdup("DrumGizmoClass");
+
+ RegisterClassEx(&wcex);
+
+ /*
+ if(parent) {
+ style = style | WS_CHILD;
+ wndId = parent->getWndId();
+ } else {
+ */
+ //style = style | WS_OVERLAPPEDWINDOW;
+ wndId = 0;
+ // }
+
+ m_hwnd = CreateWindowEx(0/*ex_style*/, m_className,
+ "DGBasisWidget",
+ (WS_OVERLAPPEDWINDOW | WS_VISIBLE),
+ window->x(), window->y(),
+ window->width(), window->height(),
+ wndId, NULL,
+ GetModuleHandle(NULL), NULL);
+
+ SetWindowLongPtr(m_hwnd, GWLP_USERDATA, (LONG_PTR)this);
+}
+
+GUI::NativeWindowWin32::~NativeWindowWin32()
+{
+ UnregisterClass(m_className, GetModuleHandle(NULL));
+ free(m_className);
+}
+
+void GUI::NativeWindowWin32::setFixedSize(int width, int height)
+{
+ resize(width, height);
+ LONG style = GetWindowLong(m_hwnd, GWL_STYLE);
+ style &= ~(WS_THICKFRAME | WS_MAXIMIZEBOX);
+ SetWindowLong(m_hwnd, GWL_STYLE, style);
+}
+
+void GUI::NativeWindowWin32::resize(int width, int height)
+{
+ SetWindowPos(m_hwnd, NULL, -1, -1, (int)width, (int)height, SWP_NOMOVE);
+ RECT r;
+ GetClientRect(m_hwnd, &r);
+ int w = width - r.right;
+ int h = height - r.bottom;
+
+ SetWindowPos(m_hwnd, NULL, -1, -1, width + w, height + h, SWP_NOMOVE);
+}
+
+void GUI::NativeWindowWin32::move(int x, int y)
+{
+ SetWindowPos(m_hwnd, NULL, (int)x, (int)y, -1, -1, SWP_NOSIZE);
+}
+
+void GUI::NativeWindowWin32::show()
+{
+ ShowWindow(m_hwnd, SW_SHOW);
+}
+
+void GUI::NativeWindowWin32::handleBuffer()
+{
+}
+
+void GUI::NativeWindowWin32::hide()
+{
+ ShowWindow(m_hwnd, SW_HIDE);
+}
+
+void GUI::NativeWindowWin32::redraw()
+{
+ RedrawWindow(m_hwnd, NULL, NULL, RDW_ERASE|RDW_INVALIDATE);
+ UpdateWindow(m_hwnd);
+}
+
+void GUI::NativeWindowWin32::setCaption(const std::string &caption)
+{
+ SetWindowText(m_hwnd, caption.c_str());
+}
+
+void GUI::NativeWindowWin32::grabMouse(bool grab)
+{
+ if(grab) SetCapture(m_hwnd);
+ else ReleaseCapture();
+}
+
+bool GUI::NativeWindowWin32::hasEvent()
+{
+ MSG msg;
+ return PeekMessage(&msg, NULL, 0, 0, 0) != 0;
+}
+
+GUI::Event *GUI::NativeWindowWin32::getNextEvent()
+{
+ Event *event = NULL;
+
+ MSG msg;
+ if(GetMessage(&msg, NULL, 0, 0)) {
+ TranslateMessage(&msg);
+ DispatchMessage(&msg);
+ }
+
+ event = this->event;
+ this->event = NULL;
+
+ return event;
+}
+
+#endif/*WIN32*/
diff --git a/plugingui/nativewindow_win32.h b/plugingui/nativewindow_win32.h
new file mode 100644
index 0000000..6afc7b1
--- /dev/null
+++ b/plugingui/nativewindow_win32.h
@@ -0,0 +1,71 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * nativewindow_win32.h
+ *
+ * Fri Dec 28 18:45:51 CET 2012
+ * Copyright 2012 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_NATIVEWINDOW_WIN32_H__
+#define __DRUMGIZMO_NATIVEWINDOW_WIN32_H__
+
+#ifdef WIN32
+
+#include "nativewindow.h"
+
+#include <windows.h>
+typedef HWND WNDID;
+
+namespace GUI {
+
+class Window;
+class Event;
+
+class NativeWindowWin32 : public NativeWindow {
+public:
+ NativeWindowWin32(GUI::Window *window);
+ ~NativeWindowWin32();
+
+ void setFixedSize(int width, int height);
+ void resize(int width, int height);
+ void move(int x, int y);
+ void show();
+ void setCaption(const std::string &caption);
+ void hide();
+ void handleBuffer();
+ void redraw();
+ void grabMouse(bool grab);
+
+ bool hasEvent();
+ Event *getNextEvent();
+
+ // Needed by dialogProc
+ GUI::Window *window;
+ WNDID m_hwnd;
+ char *m_className;
+ Event *event;
+};
+
+};
+
+#endif/*WIN32*/
+
+#endif/*__DRUMGIZMO_NATIVEWINDOW_WIN32_H__*/
diff --git a/plugingui/nativewindow_x11.cc b/plugingui/nativewindow_x11.cc
new file mode 100644
index 0000000..cb6cf73
--- /dev/null
+++ b/plugingui/nativewindow_x11.cc
@@ -0,0 +1,388 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * nativewindow_x11.cc
+ *
+ * Fri Dec 28 18:45:57 CET 2012
+ * Copyright 2012 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "nativewindow_x11.h"
+
+#ifdef X11
+#include <X11/Xutil.h>
+#include <stdlib.h>
+
+#include "window.h"
+
+GUI::NativeWindowX11::NativeWindowX11(GUI::Window *window)
+ : GUI::NativeWindow()
+{
+ display = XOpenDisplay(NULL);
+
+ this->window = window;
+ buffer = NULL;
+
+ // Get some colors
+ int blackColor = BlackPixel(display, DefaultScreen(display));
+
+ ::Window w = DefaultRootWindow(display);
+
+ // Create the window
+ xwindow = XCreateSimpleWindow(display,
+ w,
+ window->x(), window->y(),
+ window->width(), window->height(),
+ 0,
+ blackColor, blackColor);
+
+ XSelectInput(display, xwindow,
+ StructureNotifyMask |
+ PointerMotionMask |
+ ButtonPressMask |
+ ButtonReleaseMask |
+ KeyPressMask |
+ KeyReleaseMask|
+ ExposureMask |
+ StructureNotifyMask |
+ SubstructureNotifyMask);
+
+ // register interest in the delete window message
+ wmDeleteMessage = XInternAtom(display, "WM_DELETE_WINDOW", false);
+ XSetWMProtocols(display, xwindow, &wmDeleteMessage, 1);
+
+ // "Map" the window (that is, make it appear on the screen)
+ XMapWindow(display, xwindow);
+
+ // Create a "Graphics Context"
+ gc = XCreateGC(display, xwindow, 0, NULL);
+}
+
+GUI::NativeWindowX11::~NativeWindowX11()
+{
+ XDestroyWindow(display, xwindow);
+ //widgets.erase(window);
+ XCloseDisplay(display);
+}
+
+void GUI::NativeWindowX11::setFixedSize(int width, int height)
+{
+ resize(width, height);
+
+ XSizeHints *size_hints;
+ size_hints = XAllocSizeHints();
+
+ if(size_hints == NULL) {
+ //fprintf(stderr,"XMallocSizeHints() failed\n");
+ //exit(1);
+ return;
+ }
+
+ size_hints->flags = USPosition | PMinSize | PMaxSize;
+ size_hints->min_width = size_hints->max_width = width;
+ size_hints->min_height = size_hints->max_height = height;
+ /*
+ size_hints->min_aspect.x = window->width()/window->height();
+ size_hints->max_aspect.x = window->width()/window->height();
+ size_hints->min_aspect.y = window->width()/window->height();
+ size_hints->max_aspect.y = size_hints->min_aspect.y;
+ */
+ XSetWMNormalHints(display, xwindow, size_hints);
+}
+
+void GUI::NativeWindowX11::resize(int width, int height)
+{
+ XResizeWindow(display, xwindow, width, height);
+}
+
+void GUI::NativeWindowX11::move(int x, int y)
+{
+ XMoveWindow(display, xwindow, x, y);
+}
+
+void GUI::NativeWindowX11::show()
+{
+ XMapWindow(display, xwindow);
+}
+
+void GUI::NativeWindowX11::hide()
+{
+ XUnmapWindow(display, xwindow);
+}
+
+static int get_byte_order (void)
+{
+ union {
+ char c[sizeof(short)];
+ short s;
+ } order;
+
+ order.s = 1;
+ if ((1 == order.c[0])) {
+ return LSBFirst;
+ } else {
+ return MSBFirst;
+ }
+}
+
+static XImage *create_image_from_buffer(Display *dis, int screen,
+ unsigned char *buf,
+ int width, int height)
+{
+ int depth;
+ XImage *img = NULL;
+ Visual *vis;
+ double rRatio;
+ double gRatio;
+ double bRatio;
+ int outIndex = 0;
+ int i;
+ int numBufBytes = (3 * (width * height));
+
+ depth = DefaultDepth(dis, screen);
+ vis = DefaultVisual(dis, screen);
+
+ rRatio = vis->red_mask / 255.0;
+ gRatio = vis->green_mask / 255.0;
+ bRatio = vis->blue_mask / 255.0;
+
+ if (depth >= 24) {
+ size_t numNewBufBytes = (4 * (width * height));
+ u_int32_t *newBuf = (u_int32_t *)malloc (numNewBufBytes);
+
+ for (i = 0; i < numBufBytes; ++i) {
+ unsigned int r, g, b;
+ r = (buf[i] * rRatio);
+ ++i;
+ g = (buf[i] * gRatio);
+ ++i;
+ b = (buf[i] * bRatio);
+
+ r &= vis->red_mask;
+ g &= vis->green_mask;
+ b &= vis->blue_mask;
+
+ newBuf[outIndex] = r | g | b;
+ ++outIndex;
+ }
+
+ img = XCreateImage (dis,
+ CopyFromParent, depth,
+ ZPixmap, 0,
+ (char *) newBuf,
+ width, height,
+ 32, 0
+ );
+
+ } else if (depth >= 15) {
+ size_t numNewBufBytes = (2 * (width * height));
+ u_int16_t *newBuf = (u_int16_t *)malloc (numNewBufBytes);
+
+ for (i = 0; i < numBufBytes; ++i) {
+ unsigned int r, g, b;
+
+ r = (buf[i] * rRatio);
+ ++i;
+ g = (buf[i] * gRatio);
+ ++i;
+ b = (buf[i] * bRatio);
+
+ r &= vis->red_mask;
+ g &= vis->green_mask;
+ b &= vis->blue_mask;
+
+ newBuf[outIndex] = r | g | b;
+ ++outIndex;
+ }
+
+ img = XCreateImage(dis, CopyFromParent, depth, ZPixmap, 0, (char *) newBuf,
+ width, height, 16, 0);
+ } else {
+ //fprintf (stderr, "This program does not support displays with a depth less than 15.");
+ return NULL;
+ }
+
+ XInitImage (img);
+ /*Set the client's byte order, so that XPutImage knows what to do with the data.*/
+ /*The default in a new X image is the server's format, which may not be what we want.*/
+ if ((LSBFirst == get_byte_order ())) {
+ img->byte_order = LSBFirst;
+ } else {
+ img->byte_order = MSBFirst;
+ }
+
+ /*The bitmap_bit_order doesn't matter with ZPixmap images.*/
+ img->bitmap_bit_order = MSBFirst;
+
+ return img;
+}
+
+void GUI::NativeWindowX11::handleBuffer()
+{
+ if(buffer) XDestroyImage(buffer);
+ buffer =
+ create_image_from_buffer(display, DefaultScreen(display),
+ window->wpixbuf.buf,
+ window->wpixbuf.width,
+ window->wpixbuf.height);
+}
+
+void GUI::NativeWindowX11::redraw()
+{
+ // http://stackoverflow.com/questions/6384987/load-image-onto-a-window-using-xlib
+ if(buffer == NULL) window->updateBuffer();
+ XPutImage(display, xwindow, gc, buffer, 0, 0, 0, 0,
+ window->width(), window->height());
+ XFlush(display);
+}
+
+void GUI::NativeWindowX11::setCaption(const std::string &caption)
+{
+ XStoreName(display, xwindow, caption.c_str());
+}
+
+void GUI::NativeWindowX11::grabMouse(bool grab)
+{
+ (void)grab;
+ // Don't need to do anything on this platoform...
+}
+
+bool GUI::NativeWindowX11::hasEvent()
+{
+ return XPending(display);
+}
+
+GUI::Event *GUI::NativeWindowX11::getNextEvent()
+{
+ Event *event = NULL;
+
+ XEvent xe;
+ XNextEvent(display, &xe);
+
+ if(xe.type == MotionNotify) {
+ while(true) { // Hack to make sure only the last event is played.
+ if(!hasEvent()) break;
+ XEvent nxe;
+ XPeekEvent(display, &nxe);
+ if(nxe.type != MotionNotify) break;
+ XNextEvent(display, &xe);
+ }
+
+ MouseMoveEvent *e = new MouseMoveEvent();
+ e->window_id = xe.xmotion.window;
+ e->x = xe.xmotion.x;
+ e->y = xe.xmotion.y;
+ event = e;
+ }
+
+ if(xe.type == Expose && xe.xexpose.count == 0) {
+ RepaintEvent *e = new RepaintEvent();
+ e->window_id = xe.xexpose.window;
+ e->x = xe.xexpose.x;
+ e->y = xe.xexpose.y;
+ e->width = xe.xexpose.width;
+ e->height = xe.xexpose.height;
+ event = e;
+ }
+
+ if(xe.type == ConfigureNotify) {
+ ResizeEvent *e = new ResizeEvent();
+ e->window_id = xe.xconfigure.window;
+ // e->x = xe.xconfigure.x;
+ // e->y = xe.xconfigure.y;
+ e->width = xe.xconfigure.width;
+ e->height = xe.xconfigure.height;
+ event = e;
+ }
+
+ if(xe.type == ButtonPress || xe.type == ButtonRelease) {
+ if(xe.xbutton.button == 4 || xe.xbutton.button == 5) {
+ int scroll = 1;
+ while(true) { // Hack to make sure only the last event is played.
+ if(!hasEvent()) break;
+ XEvent nxe;
+ XPeekEvent(display, &nxe);
+ if(nxe.type != ButtonPress && nxe.type != ButtonRelease) break;
+ scroll += 1;
+ XNextEvent(display, &xe);
+ }
+ ScrollEvent *e = new ScrollEvent();
+ e->window_id = xe.xbutton.window;
+ e->x = xe.xbutton.x;
+ e->y = xe.xbutton.y;
+ e->delta = scroll * (xe.xbutton.button==4?-1:1);
+ event = e;
+ } else {
+ ButtonEvent *e = new ButtonEvent();
+ e->window_id = xe.xbutton.window;
+ e->x = xe.xbutton.x;
+ e->y = xe.xbutton.y;
+ e->button = 0;
+ e->direction = xe.type == ButtonPress?1:-1;
+ e->doubleclick =
+ xe.type == ButtonPress && (xe.xbutton.time - last_click) < 200;
+
+ if(xe.type == ButtonPress) last_click = xe.xbutton.time;
+ event = e;
+ }
+ }
+
+ if(xe.type == KeyPress || xe.type == KeyRelease) {
+ //printf("key: %d\n", xe.xkey.keycode);
+ KeyEvent *e = new KeyEvent();
+ e->window_id = xe.xkey.window;
+
+ switch(xe.xkey.keycode) {
+ case 113: e->keycode = KeyEvent::KEY_LEFT; break;
+ case 114: e->keycode = KeyEvent::KEY_RIGHT; break;
+ case 111: e->keycode = KeyEvent::KEY_UP; break;
+ case 116: e->keycode = KeyEvent::KEY_DOWN; break;
+ case 119: e->keycode = KeyEvent::KEY_DELETE; break;
+ case 22: e->keycode = KeyEvent::KEY_BACKSPACE; break;
+ case 110: e->keycode = KeyEvent::KEY_HOME; break;
+ case 115: e->keycode = KeyEvent::KEY_END; break;
+ case 117: e->keycode = KeyEvent::KEY_PGDOWN; break;
+ case 112: e->keycode = KeyEvent::KEY_PGUP; break;
+ case 36: e->keycode = KeyEvent::KEY_ENTER; break;
+ default: e->keycode = KeyEvent::KEY_UNKNOWN; break;
+ }
+
+ char buf[1024];
+ int sz = XLookupString(&xe.xkey, buf, sizeof(buf), NULL, NULL);
+ if(sz && e->keycode == KeyEvent::KEY_UNKNOWN) {
+ e->keycode = KeyEvent::KEY_CHARACTER;
+ }
+ e->text.append(buf, sz);
+
+ e->direction = xe.type == KeyPress?1:-1;
+ event = e;
+ }
+
+ if(xe.type == ClientMessage &&
+ (unsigned int)xe.xclient.data.l[0] == wmDeleteMessage) {
+ CloseEvent *e = new CloseEvent();
+ event = e;
+ }
+
+ return event;
+}
+
+#endif/*X11*/
+
diff --git a/plugingui/nativewindow_x11.h b/plugingui/nativewindow_x11.h
new file mode 100644
index 0000000..3dcc0bb
--- /dev/null
+++ b/plugingui/nativewindow_x11.h
@@ -0,0 +1,72 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * nativewindow_x11.h
+ *
+ * Fri Dec 28 18:45:56 CET 2012
+ * Copyright 2012 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_NATIVEWINDOW_X11_H__
+#define __DRUMGIZMO_NATIVEWINDOW_X11_H__
+#endif/*__DRUMGIZMO_NATIVEWINDOW_X11_H__*/
+
+#ifdef X11
+#include <X11/Xlib.h>
+
+#include "nativewindow.h"
+
+namespace GUI {
+
+class Window;
+class NativeWindowX11 : public NativeWindow {
+public:
+ NativeWindowX11(GUI::Window *window);
+ ~NativeWindowX11();
+
+ void setFixedSize(int width, int height);
+ void resize(int width, int height);
+ void move(int x, int y);
+ void show();
+ void setCaption(const std::string &caption);
+ void hide();
+ void handleBuffer();
+ void redraw();
+ void grabMouse(bool grab);
+
+ bool hasEvent();
+ Event *getNextEvent();
+
+private:
+ ::Window xwindow;
+ GC gc;
+ XImage *buffer;
+
+ GUI::Window *window;
+
+ int last_click;
+
+ Display *display;
+ Atom wmDeleteMessage;
+};
+
+};
+
+#endif/*X11*/
diff --git a/plugingui/notifier.h b/plugingui/notifier.h
new file mode 100644
index 0000000..9f404bb
--- /dev/null
+++ b/plugingui/notifier.h
@@ -0,0 +1,149 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * notifier.h
+ *
+ * Thu Sep 3 15:48:39 CEST 2015
+ * Copyright 2015 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#pragma once
+
+#include <iostream>
+#include <functional>
+#include <vector>
+#include <map>
+#include <set>
+#include <type_traits>
+#include <utility>
+
+namespace GUI {
+
+class Listener;
+class NotifierBase {
+public:
+ virtual void disconnect(Listener* object) {}
+};
+
+class Listener {
+public:
+ virtual ~Listener()
+ {
+ for(auto signal = signals.begin(); signal != signals.end(); ++signal) {
+ (*signal)->disconnect(this);
+ }
+ }
+
+ void registerNotifier(NotifierBase* signal)
+ {
+ signals.insert(signal);
+ }
+
+ void unregisterNotifier(NotifierBase* signal)
+ {
+ signals.erase(signal);
+ }
+
+ std::set<NotifierBase*> signals;
+};
+
+template<typename T, typename... Args>
+class Notifier : public NotifierBase {
+public:
+ Notifier() {}
+ ~Notifier()
+ {
+ for(auto slot = slots.begin(); slot != slots.end(); ++slot) {
+ (*slot).first->unregisterNotifier(this);
+ }
+ }
+
+ void connect(Listener* object, std::function<void(T, Args...)> slot)
+ {
+ slots[object] = slot;
+ if(object) {
+ object->registerNotifier(this);
+ }
+ }
+
+ void disconnect(Listener* object)
+ {
+ slots.erase(object);
+ }
+
+ void notify(T t, Args...args)
+ {
+ for(auto slot = slots.begin(); slot != slots.end(); ++slot) {
+ (*slot).second(t, args...);
+ }
+ }
+
+ std::map<Listener*, std::function<void(T, Args...)>> slots;
+};
+
+} // GUI::
+
+template<unsigned... Is> struct seq{};
+template<unsigned I, unsigned... Is>
+struct gen_seq : gen_seq<I-1, I-1, Is...>{};
+template<unsigned... Is>
+struct gen_seq<0, Is...> : seq<Is...>{};
+
+template<unsigned I> struct placeholder{};
+
+namespace std{
+template<unsigned I>
+struct is_placeholder< ::placeholder<I> > : integral_constant<int, I>{};
+} // std::
+
+namespace aux{
+template<unsigned... Is, class F, class... Ts>
+auto easy_bind(seq<Is...>, F&& f, Ts&&... vs)
+ -> decltype(std::bind(std::forward<F>(f), std::forward<Ts>(vs)..., ::placeholder<1 + Is>()...))
+{
+ return std::bind(std::forward<F>(f), std::forward<Ts>(vs)..., ::placeholder<1 + Is>()...);
+}
+} // aux::
+
+template<class R, class C, class... FArgs, class... Args>
+auto mem_bind(R (C::*ptmf)(FArgs...), Args&&... vs)
+ -> decltype(aux::easy_bind(gen_seq<(sizeof...(FArgs) + 1) - sizeof...(Args)>(), ptmf, std::forward<Args>(vs)...))
+{
+ // the +1s for 'this' argument
+ static_assert(sizeof...(Args) <= sizeof...(FArgs) + 1, "too many arguments to mem_bind");
+ return aux::easy_bind(gen_seq<(sizeof...(FArgs) + 1) - sizeof...(Args)>(), ptmf, std::forward<Args>(vs)...);
+}
+
+template<class T, class C, class... Args>
+auto mem_bind(T C::*ptmd, Args&&... vs)
+ -> decltype(aux::easy_bind(gen_seq<1 - sizeof...(Args)>(), ptmd, std::forward<Args>(vs)...))
+{
+ // just 'this' argument
+ static_assert(sizeof...(Args) <= 1, "too many arguments to mem_bind");
+ return aux::easy_bind(gen_seq<1 - sizeof...(Args)>(), ptmd, std::forward<Args>(vs)...);
+}
+
+//#define obj_connect_old(SRC, SIG, TAR, SLO) (SRC).SIG.connect(&(TAR), mem_bind(&decltype(TAR)::SLO, TAR))
+
+#define fun_connect(SRC, SIG, SLO) \
+ (SRC).SIG.connect(nullptr, SLO)
+
+#define obj_connect(SRC, SIG, TAR, SLO) \
+ (SRC)->SIG.connect(TAR, mem_bind(&SLO, std::ref(*TAR)))
diff --git a/plugingui/painter.cc b/plugingui/painter.cc
new file mode 100644
index 0000000..842ff11
--- /dev/null
+++ b/plugingui/painter.cc
@@ -0,0 +1,488 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * painter.cc
+ *
+ * Wed Oct 12 19:48:45 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "painter.h"
+
+#include "window.h"
+
+#include <string.h>
+
+GUI::Painter::Painter(GUI::Widget *widget)
+{
+ this->widget = widget;
+ widget->window()->beginPaint();
+ pixbuf = &widget->pixbuf;
+ colour = Colour(0, 0, 0, 0.5);
+}
+
+GUI::Painter::~Painter()
+{
+ widget->window()->endPaint();
+ flush();
+}
+
+void GUI::Painter::setColour(Colour colour)
+{
+ this->colour = colour;
+}
+
+void GUI::Painter::plot(int x, int y, double c)
+{
+ // plot the pixel at (x, y) with brightness c (where 0 ≤ c ≤ 1)
+ pixbuf->addPixel(x, y,
+ (unsigned char)(colour.red * 255.0),
+ (unsigned char)(colour.green * 255.0),
+ (unsigned char)(colour.blue * 255.0),
+ (unsigned char)(colour.alpha * 255 * c));
+
+}
+
+#include <math.h>
+double GUI::Painter::ipart(double x)
+{
+ return floor(x); //integer part of x'
+}
+
+double GUI::Painter::round(double x)
+{
+ return ipart(x + 0.5);
+}
+
+double GUI::Painter::fpart(double x)
+{
+ return x - ipart(x);//'fractional part of x'
+}
+
+double GUI::Painter::rfpart(double x)
+{
+ return 1 - fpart(x);
+}
+
+
+#define SWAP(x, y) { int tmp = x; x = y; y = tmp; }
+void GUI::Painter::drawLine(int x0, int y0, int x1, int y1)
+{
+ bool steep = abs(y1 - y0) > abs(x1 - x0);
+
+ if(steep) {
+ SWAP(x0, y0);
+ SWAP(x1, y1);
+ }
+ if(x0 > x1) {
+ SWAP(x0, x1);
+ SWAP(y0, y1);
+ }
+
+ double dx = x1 - x0;
+ double dy = y1 - y0;
+ double gradient = dy / dx;
+
+ // Handle first endpoint:
+ double xend = round(x0);
+ double yend = y0 + gradient * (xend - x0);
+ //double xgap = rfpart(x0 + 0.5);
+ double xpxl1 = xend; //this will be used in the main loop
+ double ypxl1 = ipart(yend);
+
+ if(steep) {
+ plot(ypxl1, xpxl1, 1);
+ //plot(ypxl1, xpxl1, rfpart(yend) * xgap);
+ //plot(ypxl1+1, xpxl1, fpart(yend) * xgap);
+ } else {
+ plot(xpxl1, ypxl1, 1);
+ //plot(xpxl1, ypxl1 , rfpart(yend) * xgap);
+ //plot(xpxl1, ypxl1+1, fpart(yend) * xgap);
+ }
+
+ double intery = yend + gradient; // first y-intersection for the main loop
+
+ // Handle second endpoint:
+ xend = round(x1);
+ yend = y1 + gradient * (xend - x1);
+ //xgap = fpart(x1 + 0.5);
+ double xpxl2 = xend; //this will be used in the main loop
+ double ypxl2 = ipart(yend);
+
+ if(steep) {
+ plot(ypxl2, xpxl2, 1);
+ //plot(ypxl2 , xpxl2, rfpart(yend) * xgap);
+ //plot(ypxl2+1, xpxl2, fpart(yend) * xgap);
+ } else {
+ plot(xpxl2, ypxl2, 1);
+ //plot(xpxl2, ypxl2, rfpart(yend) * xgap);
+ //plot(xpxl2, ypxl2+1, fpart(yend) * xgap);
+ }
+
+ // main loop
+ for(int x = xpxl1 + 1; x <= xpxl2 - 1; x++) {
+ if(steep) {
+ plot(ipart(intery) , x, rfpart(intery));
+ plot(ipart(intery)+1, x, fpart(intery));
+ } else {
+ plot(x, ipart (intery), rfpart(intery));
+ plot(x, ipart (intery)+1, fpart(intery));
+ }
+ intery += gradient;
+ }
+}
+
+void GUI::Painter::drawRectangle(int x1, int y1, int x2, int y2)
+{
+ drawLine(x1, y1, x2 - 1, y1);
+ drawLine(x2, y1, x2, y2 - 1);
+ drawLine(x1 + 1, y2, x2, y2);
+ drawLine(x1, y1 + 1, x1, y2);
+}
+
+void GUI::Painter::drawFilledRectangle(int x1, int y1, int x2, int y2)
+{
+ for(int y = y1; y < y2; y++) {
+ drawLine(x1, y, x2, y);
+ }
+}
+
+void GUI::Painter::clear()
+{
+ for(int x = 0; x < (int)pixbuf->width; x++) {
+ for(int y = 0; y < (int)pixbuf->height; y++) {
+ pixbuf->setPixel(x, y, 0, 0, 0, 0);
+ }
+ }
+}
+
+void GUI::Painter::drawText(int x0, int y0, GUI::Font &font, std::string text,
+ bool nocolour)
+{
+ PixelBufferAlpha *textbuf = font.render(text);
+ if(nocolour) {
+ for(size_t x = 0; x < textbuf->width; x++) {
+ for(size_t y = 0; y < textbuf->height; y++) {
+ unsigned char r,g,b,a;
+ textbuf->pixel(x, y, &r, &g, &b, &a);
+ pixbuf->addPixel(x + x0, y + y0 - textbuf->height, r,g,b,a);
+ }
+ }
+ } else {
+ for(size_t x = 0; x < textbuf->width; x++) {
+ for(size_t y = 0; y < textbuf->height; y++) {
+ unsigned char r,g,b,a;
+ textbuf->pixel(x, y, &r, &g, &b, &a);
+ pixbuf->addPixel(x + x0, y + y0 - textbuf->height,
+ colour.red * 255,
+ colour.green * 255,
+ colour.blue * 255,
+ colour.alpha * a);
+ }
+ }
+ }
+
+ delete textbuf;
+}
+
+#include <stdio.h>
+void GUI::Painter::drawPoint(int x, int y)
+{
+ pixbuf->setPixel(x, y,
+ (unsigned char)(colour.red * 255.0),
+ (unsigned char)(colour.green * 255.0),
+ (unsigned char)(colour.blue * 255.0),
+ (unsigned char)(colour.alpha * 255.0));
+}
+
+#if 0
+static double distance(double r, double y)
+{
+ double real_point = sqrt(pow(r, 2) - pow(y, 2));
+ return ceil(real_point) - real_point;
+}
+
+double new_color(double i) {
+ return i * 127;
+}
+
+void GUI::Painter::drawCircle(int cx, int cy, double radius)
+{
+ // wu_circle($image, $r, $color, $offset_x = null, $offset_y = null) {
+ //$red = $color["red"];
+ //$green = $color["green"];
+ //$blue = $color["blue"];
+ int offset_x = cx;
+ int offset_y = cy;
+ int x = radius;
+ // int xx = radius;
+ int y = -1;
+ // int yy = -1;
+ double t = 0;
+ //$color = imagecolorallocate($image, $red, $green, $blue);
+ while(x > y) {
+ y++;
+ double current_distance = distance(radius, y);
+ if(current_distance < t) {
+ x--;
+ }
+
+ double trasparency = new_color(current_distance);
+ double alpha = trasparency;
+ double alpha2 = 127.0 - trasparency;
+
+ double color = 1;
+
+ plot(x + offset_x, y + offset_y, color);
+ plot(x + offset_x - 1, y + offset_y, alpha2 );
+ plot(x + offset_x + 1, y + offset_y, alpha );
+
+ plot(y + offset_x, x + offset_y, color);
+ plot(y + offset_x, x + offset_y - 1, alpha2);
+ plot(y + offset_x, x + offset_y + 1, alpha);
+
+ plot(offset_x - x , y + offset_y, color);
+ plot(offset_x - x + 1, y + offset_y, alpha2);
+ plot(offset_x - x - 1, y + offset_y, alpha);
+
+ plot(offset_x - y, x + offset_y, color);
+ plot(offset_x - y, x + offset_y - 1, alpha2);
+ plot(offset_x - y, x + offset_y + 1, alpha);
+
+ plot(x + offset_x, offset_y - y, color);
+ plot(x + offset_x - 1, offset_y - y, alpha2);
+ plot(x + offset_x + 1, offset_y - y, alpha);
+
+ plot(y + offset_x, offset_y - x, color);
+ plot(y + offset_x, offset_y - x - 1, alpha);
+ plot(y + offset_x, offset_y - x + 1, alpha2);
+
+ plot(offset_x - y, offset_y - x, color);
+ plot(offset_x - y, offset_y - x - 1, alpha);
+ plot(offset_x - y, offset_y - x + 1, alpha2);
+
+ plot(offset_x - x, offset_y - y, color);
+ plot(offset_x - x - 1, offset_y - y, alpha);
+ plot(offset_x - x + 1, offset_y - y, alpha2);
+
+ t = current_distance;
+ }
+}
+#else
+static void plot4points(GUI::Painter *p, int cx, int cy, int x, int y)
+{
+ p->drawPoint(cx + x, cy + y);
+ if(x != 0) p->drawPoint(cx - x, cy + y);
+ if(y != 0) p->drawPoint(cx + x, cy - y);
+ if(x != 0 && y != 0) p->drawPoint(cx - x, cy - y);
+}
+
+void GUI::Painter::drawCircle(int cx, int cy, double radius)
+{
+ int error = -radius;
+ int x = radius;
+ int y = 0;
+
+ while(x >= y) {
+ plot4points(this, cx, cy, x, y);
+ if(x != y) plot4points(this, cx, cy, y, x);
+
+ error += y;
+ ++y;
+ error += y;
+
+ if(error >= 0) {
+ --x;
+ error -= x;
+ error -= x;
+ }
+ }
+}
+#endif
+
+static void plot4lines(GUI::Painter *p, int cx, int cy, int x, int y)
+{
+ p->drawLine(cx + x, cy + y, cx - x, cy + y);
+ if(x != 0) p->drawLine(cx - x, cy + y, cx + x, cy + y);
+ if(y != 0) p->drawLine(cx + x, cy - y, cx - x, cy - y);
+ if(x != 0 && y != 0) p->drawLine(cx - x, cy - y, cx + x, cy - y);
+}
+
+void GUI::Painter::drawFilledCircle(int cx, int cy, int radius)
+{
+ int error = -radius;
+ int x = radius;
+ int y = 0;
+
+ while(x >= y) {
+ plot4lines(this, cx, cy, x, y);
+ if(x != y) plot4lines(this, cx, cy, y, x);
+
+ error += y;
+ ++y;
+ error += y;
+
+ if(error >= 0) {
+ --x;
+ error -= x;
+ error -= x;
+ }
+ }
+}
+
+void GUI::Painter::drawImage(int x0, int y0, GUI::Image *image)
+{
+ size_t fw = image->width();
+ size_t fh = image->height();
+
+ for(size_t x = 0; x < fw; x++) {
+ for(size_t y = 0; y < fh; y++) {
+ GUI::Colour c = image->getPixel(x, y);
+ pixbuf->addPixel(x0 + x, y0 + y, c);
+ }
+ }
+}
+
+void GUI::Painter::drawImageStretched(int x0, int y0, GUI::Image *image,
+ int w, int h)
+{
+ if(w < 1 || h < 1) return;
+
+ float fw = image->width();
+ float fh = image->height();
+
+ for(int x = 0; x < w; x++) {
+ for(int y = 0; y < h; y++) {
+ int lx = ((float)x/(float)w)*fw;
+ int ly = ((float)y/(float)h)*fh;
+ GUI::Colour c = image->getPixel(lx, ly);
+ pixbuf->addPixel(x0 + x, y0 + y, c);
+ }
+ }
+}
+
+void GUI::Painter::drawBox(int x, int y, Box *box, int width, int height)
+{
+ int dx = x;
+ int dy = y;
+
+ // Top:
+
+ drawImage(dx, dy, box->topLeft);
+
+ dx += box->topLeft->width();
+ if(dx < 0 || dy < 0) return;
+
+ drawImageStretched(dx, dy, box->top,
+ width - box->topRight->width() - box->topLeft->width(),
+ box->top->height());
+
+ dx = x + width - box->topRight->width();
+ if(dx < 0 || dy < 0) return;
+
+ drawImage(dx, dy, box->topRight);
+
+ // Center
+ dy = y + box->topLeft->height();
+ dx = x + box->left->width();
+ if(dx < 0 || dy < 0) return;
+
+ drawImageStretched(dx, dy, box->center,
+ width - box->left->width() - box->right->width(),
+ height - box->topLeft->height() - box->bottomLeft->height());
+
+ // Mid:
+ dx = x;
+ dy = y + box->topLeft->height();
+ if(dx < 0 || dy < 0) return;
+
+ drawImageStretched(dx, dy, box->left, box->left->width(),
+ height - box->topLeft->height() - box->bottomLeft->height());
+
+ dx = x + width - box->right->width();
+ dy = y + box->topRight->height();
+ if(dx < 0 || dy < 0) return;
+
+ drawImageStretched(dx, dy, box->right,
+ box->right->width(),
+ height - box->topRight->height() - box->bottomRight->height());
+
+ // Bottom:
+ dx = x;
+ dy = y + height - box->bottomLeft->height();
+ if(dx < 0 || dy < 0) return;
+
+ drawImage(dx, dy, box->bottomLeft);
+
+ dx += box->bottomLeft->width();
+ if(dx < 0 || dy < 0) return;
+
+ drawImageStretched(dx, dy, box->bottom,
+ width - box->bottomRight->width() - box->bottomLeft->width(),
+ box->bottom->height());
+
+ dx = x + width - box->bottomRight->width();
+ if(dx < 0 || dy < 0) return;
+
+ drawImage(dx, dy, box->bottomRight);
+}
+
+void GUI::Painter::drawBar(int x, int y, Bar *bar, int width, int height)
+{
+ if(width < ((int)bar->left->width() + (int)bar->right->width() + 1)) {
+ width = bar->left->width() + bar->right->width() + 1;
+ }
+ drawImageStretched(x, y,
+ bar->left,
+ bar->left->width(), height);
+
+ drawImageStretched(x + bar->left->width(), y,
+ bar->center,
+ width - bar->left->width() - bar->right->width(), height);
+
+ drawImageStretched(x + width - bar->left->width(), y,
+ bar->right,
+ bar->right->width(), height);
+}
+
+void GUI::Painter::flush()
+{
+#ifdef X11
+ // Send the "DrawLine" request to the server
+ //XFlush(gctx->display);
+#endif/*X11*/
+}
+
+#ifdef TEST_PAINTER
+//Additional dependency files
+//deps:
+//Required cflags (autoconf vars may be used)
+//cflags:
+//Required link options (autoconf vars may be used)
+//libs:
+#include "test.h"
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+
+TEST_END;
+
+#endif/*TEST_PAINTER*/
diff --git a/plugingui/painter.h b/plugingui/painter.h
new file mode 100644
index 0000000..0a93f50
--- /dev/null
+++ b/plugingui/painter.h
@@ -0,0 +1,97 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * painter.h
+ *
+ * Wed Oct 12 19:48:45 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_PAINTER_H__
+#define __DRUMGIZMO_PAINTER_H__
+
+#include <string>
+
+#include "widget.h"
+#include "colour.h"
+#include "pixelbuffer.h"
+#include "font.h"
+#include "image.h"
+
+namespace GUI {
+
+class Painter {
+public:
+ Painter(Widget *widget);
+ ~Painter();
+
+ void flush();
+
+ void setColour(Colour colour);
+
+ void drawLine(int x1, int y1, int x2, int y2);
+ void drawText(int x, int y, Font &font, std::string text,
+ bool nocolour = false);
+ void drawRectangle(int x1, int y1, int x2, int y2);
+ void drawFilledRectangle(int x1, int y1, int x2, int y2);
+ void drawPoint(int x, int y);
+ void drawCircle(int x, int y, double r);
+ void drawFilledCircle(int x, int y, int r);
+ void drawImage(int x, int y, Image *image);
+ void drawImageStretched(int x0, int y0, GUI::Image *image,
+ int width, int height);
+
+ typedef struct {
+ Image *topLeft;
+ Image *top;
+ Image *topRight;
+ Image *left;
+ Image *right;
+ Image *bottomLeft;
+ Image *bottom;
+ Image *bottomRight;
+ Image *center;
+ } Box;
+ void drawBox(int x, int y, Box *box, int width, int height);
+
+ typedef struct {
+ Image *left;
+ Image *right;
+ Image *center;
+ } Bar;
+ void drawBar(int x, int y, Bar *bar, int width, int height);
+
+ void clear();
+
+private:
+ void plot(int x, int y, double c);
+ double ipart(double x);
+ double round(double x);
+ double fpart(double x);
+ double rfpart(double x);
+
+ Widget *widget;
+ PixelBufferAlpha *pixbuf;
+ Colour colour;
+};
+
+};
+
+#endif/*__DRUMGIZMO_PAINTER_H__*/
diff --git a/plugingui/pixelbuffer.cc b/plugingui/pixelbuffer.cc
new file mode 100644
index 0000000..2a6bf6f
--- /dev/null
+++ b/plugingui/pixelbuffer.cc
@@ -0,0 +1,180 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * pixelbuffer.cc
+ *
+ * Thu Nov 10 09:00:38 CET 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "pixelbuffer.h"
+
+#include <stdio.h>
+
+GUI::PixelBuffer::PixelBuffer(size_t width, size_t height)
+{
+ buf = NULL;
+ realloc(width, height);
+}
+
+GUI::PixelBuffer::~PixelBuffer()
+{
+ if(buf) free(buf);
+}
+
+void GUI::PixelBuffer::realloc(size_t width, size_t height)
+{
+ if(buf) free(buf);
+ buf = (unsigned char *)calloc(width * height, 3);
+ this->width = width;
+ this->height = height;
+}
+
+#define PX(k) (x + y * width) * 3 + k
+void GUI::PixelBuffer::setPixel(size_t x, size_t y,
+ unsigned char red,
+ unsigned char green,
+ unsigned char blue,
+ unsigned char alpha)
+{
+ if(x >= width || y >= height) return;
+ /*
+ float a,b;
+ getAlpha(alpha, 255, a, b);
+
+ buf[PX(0)] = (unsigned char)((float)red * a + (float)buf[PX(0)] * b);
+ buf[PX(0)] /= (a + b);
+ buf[PX(1)] = (unsigned char)((float)green * a + (float)buf[PX(1)] * b);
+ buf[PX(1)] /= (a + b);
+ buf[PX(2)] = (unsigned char)((float)blue * a + (float)buf[PX(2)] * b);
+ buf[PX(2)] /= (a + b);
+ */
+ unsigned int a = alpha;
+ unsigned int b = 255 - alpha;
+
+ buf[PX(0)] = (unsigned char)(((int)red * a + (int)buf[PX(0)] * b) / 255);
+ buf[PX(1)] = (unsigned char)(((int)green * a + (int)buf[PX(1)] * b) / 255);
+ buf[PX(2)] = (unsigned char)(((int)blue * a + (int)buf[PX(2)] * b) / 255);
+
+}
+
+static int idx = 0;
+GUI::PixelBufferAlpha::PixelBufferAlpha(size_t width, size_t height)
+{
+ this->idx = ::idx++;
+ buf = NULL;
+ x = y = 10;
+ realloc(width, height);
+}
+
+GUI::PixelBufferAlpha::~PixelBufferAlpha()
+{
+ if(buf) free(buf);
+}
+
+void GUI::PixelBufferAlpha::realloc(size_t width, size_t height)
+{
+ if(buf) free(buf);
+ buf = (unsigned char *)calloc(width * height, 4);
+ this->width = width;
+ this->height = height;
+}
+
+#undef PX
+#define PX(k) (x + y * width) * 4 + k
+void GUI::PixelBufferAlpha::setPixel(size_t x, size_t y,
+ unsigned char red,
+ unsigned char green,
+ unsigned char blue,
+ unsigned char alpha)
+{
+ if(x >= width || y >= height) return;
+
+ buf[PX(0)] = red;
+ buf[PX(1)] = green;
+ buf[PX(2)] = blue;
+ buf[PX(3)] = alpha;
+}
+
+// http://en.wikipedia.org/wiki/Alpha_compositing
+static void getAlpha(unsigned char _a, unsigned char _b, float &a, float &b)
+{
+ a = _a / 255.0;
+ b = _b / 255.0;
+ b *= (1-a);
+}
+
+void GUI::PixelBufferAlpha::addPixel(size_t x, size_t y,
+ unsigned char red,
+ unsigned char green,
+ unsigned char blue,
+ unsigned char alpha)
+{
+ if(x >= width || y >= height) return;
+
+ if(alpha == 0) return;
+
+ float a,b;
+ getAlpha(alpha, buf[PX(3)], a, b);
+
+ buf[PX(0)] = (unsigned char)((float)red * a + (float)buf[PX(0)] * b);
+ buf[PX(0)] /= (a + b);
+ buf[PX(1)] = (unsigned char)((float)green * a + (float)buf[PX(1)] * b);
+ buf[PX(1)] /= (a + b);
+ buf[PX(2)] = (unsigned char)((float)blue * a + (float)buf[PX(2)] * b);
+ buf[PX(2)] /= (a + b);
+
+ buf[PX(3)] = (a + b) * 255;
+}
+
+void GUI::PixelBufferAlpha::addPixel(size_t x, size_t y, GUI::Colour c)
+{
+ addPixel(x, y, c.red * 255, c.green * 255, c.blue * 255, c.alpha * 255);
+}
+
+void GUI::PixelBufferAlpha::pixel(size_t x, size_t y,
+ unsigned char *red,
+ unsigned char *green,
+ unsigned char *blue,
+ unsigned char *alpha)
+{
+ if(x >= width || y >= height) return;
+ *red = buf[PX(0)];
+ *green = buf[PX(1)];
+ *blue = buf[PX(2)];
+ *alpha = buf[PX(3)];
+}
+
+#ifdef TEST_PIXELBUFFER
+//Additional dependency files
+//deps:
+//Required cflags (autoconf vars may be used)
+//cflags:
+//Required link options (autoconf vars may be used)
+//libs:
+#include "test.h"
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+
+TEST_END;
+
+#endif/*TEST_PIXELBUFFER*/
diff --git a/plugingui/pixelbuffer.h b/plugingui/pixelbuffer.h
new file mode 100644
index 0000000..2785eb1
--- /dev/null
+++ b/plugingui/pixelbuffer.h
@@ -0,0 +1,91 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * pixelbuffer.h
+ *
+ * Thu Nov 10 09:00:37 CET 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_PIXELBUFFER_H__
+#define __DRUMGIZMO_PIXELBUFFER_H__
+
+#include <stdlib.h>
+
+#include "colour.h"
+
+namespace GUI {
+
+class PixelBuffer {
+public:
+ PixelBuffer(size_t width, size_t height);
+ ~PixelBuffer();
+
+ void realloc(size_t width, size_t height);
+
+ void setPixel(size_t x, size_t y,
+ unsigned char red,
+ unsigned char green,
+ unsigned char blue,
+ unsigned char alpha);
+
+ unsigned char *buf;
+ size_t width;
+ size_t height;
+};
+
+class PixelBufferAlpha {
+public:
+ PixelBufferAlpha(size_t width, size_t height);
+ ~PixelBufferAlpha();
+
+ int idx;
+ size_t x, y;
+
+ void realloc(size_t width, size_t height);
+
+ void setPixel(size_t x, size_t y,
+ unsigned char red,
+ unsigned char green,
+ unsigned char blue,
+ unsigned char alpha);
+
+ void addPixel(size_t x, size_t y,
+ unsigned char red,
+ unsigned char green,
+ unsigned char blue,
+ unsigned char alpha);
+
+ void addPixel(size_t x, size_t y, Colour c);
+
+ void pixel(size_t x, size_t y,
+ unsigned char *red,
+ unsigned char *green,
+ unsigned char *blue,
+ unsigned char *alpha);
+
+ unsigned char *buf;
+ size_t width;
+ size_t height;
+};
+
+};
+
+#endif/*__DRUMGIZMO_PIXELBUFFER_H__*/
diff --git a/plugingui/pluginconfig.cc b/plugingui/pluginconfig.cc
new file mode 100644
index 0000000..d4c4477
--- /dev/null
+++ b/plugingui/pluginconfig.cc
@@ -0,0 +1,63 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * config.cc
+ *
+ * Tue Jun 3 13:54:05 CEST 2014
+ * Copyright 2014 Jonas Suhr Christensen
+ * jsc@umbraculum.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "pluginconfig.h"
+
+#include <hugin.hpp>
+
+#define CONFIGFILENAME "plugingui.conf"
+
+Config::Config()
+ : ConfigFile(CONFIGFILENAME)
+{
+}
+
+Config::~Config()
+{
+}
+
+bool Config::load()
+{
+ lastkit.clear();
+ lastmidimap.clear();
+
+ if(!ConfigFile::load()) {
+ return false;
+ }
+
+ lastkit = getValue("lastkit");
+ lastmidimap = getValue("lastmidimap");
+
+ return true;
+}
+
+bool Config::save()
+{
+ setValue("lastkit", lastkit);
+ setValue("lastmidimap", lastmidimap);
+
+ return ConfigFile::save();
+}
diff --git a/plugingui/pluginconfig.h b/plugingui/pluginconfig.h
new file mode 100644
index 0000000..9bef1f0
--- /dev/null
+++ b/plugingui/pluginconfig.h
@@ -0,0 +1,44 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * config.h
+ *
+ * Tue Jun 3 13:51:29 CEST 2014
+ * Copyright 2014 Jonas Suhr Christensen
+ * jsc@umbraculum.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_CONFIG_H__
+#define __DRUMGIZMO_CONFIG_H__
+
+#include <configfile.h>
+
+class Config : public ConfigFile {
+public:
+ Config();
+ ~Config();
+
+ bool load();
+ bool save();
+
+ std::string lastkit;
+ std::string lastmidimap;
+};
+
+#endif/*__DRUMGIZMO_CONFIG_H__*/
diff --git a/plugingui/plugingui.cc b/plugingui/plugingui.cc
new file mode 100644
index 0000000..262b34b
--- /dev/null
+++ b/plugingui/plugingui.cc
@@ -0,0 +1,539 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * plugingui.cc
+ *
+ * Mon Oct 3 13:40:49 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "plugingui.h"
+
+#include <hugin.hpp>
+#include <stdio.h>
+
+#include "knob.h"
+#include "verticalline.h"
+#include "../version.h"
+
+#include "pluginconfig.h"
+#include "messagehandler.h"
+
+namespace GUI {
+
+FileBrowser *fb;
+static void selectKitFile(void *ptr, std::string filename)
+{
+ PluginGUI *gui = (PluginGUI*)ptr;
+
+ gui->lineedit->setText(filename);
+
+ fb->hide();
+
+ std::string drumkit = gui->lineedit->text();
+
+ gui->config->lastkit = drumkit;
+ gui->config->save();
+
+ gui->progress->setProgress(0);
+ gui->progress->setState(ProgressBar::blue);
+
+ LoadDrumKitMessage *msg = new LoadDrumKitMessage();
+ msg->drumkitfile = drumkit;
+
+ msghandler.sendMessage(MSGRCV_ENGINE, msg);
+}
+
+static void kitBrowseClick(void *ptr)
+{
+ PluginGUI *gui = (PluginGUI*)ptr;
+
+ std::string path = gui->lineedit->text();
+ if(path == "") path = gui->config->lastkit;
+ if(path == "") path = gui->lineedit2->text();
+
+ fb->setPath(path);
+ fb->registerFileSelectHandler(selectKitFile, gui);
+ fb->show();
+}
+
+static void selectMapFile(void *ptr, std::string filename)
+{
+ PluginGUI *gui = (PluginGUI*)ptr;
+
+ gui->lineedit2->setText(filename);
+ fb->hide();
+
+ std::string midimap = gui->lineedit2->text();
+
+ gui->config->lastmidimap = midimap;
+ gui->config->save();
+
+ LoadMidimapMessage *msg = new LoadMidimapMessage();
+ msg->midimapfile = midimap;
+ msghandler.sendMessage(MSGRCV_ENGINE, msg);
+
+ /*
+ if(gui->changeMidimapHandler)
+ gui->changeMidimapHandler(gui->changeMidimapPtr, midimap.c_str());
+ gui->progress2->setState(ProgressBar::green);
+ */
+}
+
+static void midimapBrowseClick(void *ptr)
+{
+ PluginGUI *gui = (PluginGUI*)ptr;
+
+ std::string path = gui->lineedit2->text();
+ if(path == "") path = gui->config->lastmidimap;
+ if(path == "") path = gui->lineedit->text();
+
+ fb->setPath(path);
+ fb->registerFileSelectHandler(selectMapFile, gui);
+ fb->show();
+}
+
+/*
+void closeClick(void *ptr)
+{
+ PluginGUI *gui = (PluginGUI*)ptr;
+ if(gui->windowClosedHandler) gui->windowClosedHandler(gui->windowClosedPtr);
+}
+*/
+
+PluginGUI::PluginGUI()
+ : MessageReceiver(MSGRCV_UI)
+ , initialised(false)
+ , sem("plugingui")
+{
+ windowClosedHandler = NULL;
+ changeMidimapHandler = NULL;
+
+ window = NULL;
+
+ running = true;
+ closing = false;
+
+#ifdef USE_THREAD
+ run();
+#else
+ init();
+#endif/*USE_THREAD*/
+
+ sem.wait();
+}
+
+PluginGUI::~PluginGUI()
+{
+ stopThread();
+}
+
+void PluginGUI::stopThread()
+{
+ if(running) {
+ running = false;
+ wait_stop();
+ }
+}
+
+
+void PluginGUI::handleMessage(Message *msg)
+{
+ Painter p(window);// Make sure we only redraw buffer one time.
+
+ switch(msg->type()) {
+ case Message::LoadStatus:
+ {
+ LoadStatusMessage *ls = (LoadStatusMessage*)msg;
+ progress->setProgress((float)ls->numer_of_files_loaded /
+ (float)ls->number_of_files);
+ if(ls->numer_of_files_loaded == ls->number_of_files) {
+ progress->setState(ProgressBar::green);
+ }
+ }
+ break;
+ case Message::LoadStatusMidimap:
+ {
+ LoadStatusMessageMidimap *ls = (LoadStatusMessageMidimap*)msg;
+ progress2->setProgress(1);
+ if(ls->success) {
+ progress2->setState(ProgressBar::green);
+ } else {
+ progress2->setState(ProgressBar::red);
+ }
+ }
+ break;
+ case Message::EngineSettingsMessage:
+ {
+ EngineSettingsMessage *settings = (EngineSettingsMessage *)msg;
+ lineedit->setText(settings->drumkitfile);
+ if(settings->drumkit_loaded) {
+ progress->setProgress(1);
+ progress->setState(ProgressBar::green);
+ } else {
+ progress->setProgress(0);
+ progress->setState(ProgressBar::blue);
+ }
+ lineedit2->setText(settings->midimapfile);
+ if(settings->midimap_loaded) {
+ progress2->setProgress(1);
+ progress2->setState(ProgressBar::green);
+ } else {
+ progress2->setProgress(0);
+ progress2->setState(ProgressBar::blue);
+ }
+ velocityCheck->setChecked(settings->enable_velocity_modifier);
+ attackKnob->setValue(settings->velocity_modifier_weight);
+ falloffKnob->setValue(settings->velocity_modifier_falloff);
+
+ }
+ default:
+ break;
+ }
+}
+
+void PluginGUI::thread_main()
+{
+ init();
+
+ { // Request all engine settings
+ EngineSettingsMessage *msg = new EngineSettingsMessage();
+ msghandler.sendMessage(MSGRCV_ENGINE, msg);
+ }
+
+ while(running) {
+#ifdef WIN32
+ SleepEx(50, FALSE);
+#else
+ usleep(50000);
+#endif/*WIN32*/
+
+ // DEBUG(gui, "loop");
+
+ window->eventHandler()->processEvents();
+ handleMessages();
+ }
+
+ deinit();
+}
+
+void PluginGUI::deinit()
+{
+ if(config) {
+ config->save();
+ delete config;
+ }
+ if(window) delete window;
+}
+
+void closeEventHandler(void *ptr)
+{
+ volatile bool *closing = (volatile bool*)ptr;
+ *closing = true;
+}
+
+void PluginGUI::init()
+{
+ DEBUG(gui, "init");
+
+ config = new Config();
+ config->load();
+
+ window = new Window();
+ window->eventHandler()->registerCloseHandler(closeEventHandler,
+ (void*)&closing);
+
+ window->setFixedSize(370, 330);
+ window->setCaption("DrumGizmo v" VERSION);
+
+ Label *lbl_title = new Label(window);
+ lbl_title->setText("DrumGizmo");
+ lbl_title->move(127, 7);
+ lbl_title->resize(200, 20);
+
+ VerticalLine *l1 = new VerticalLine(window);
+ l1->move(20, 30);
+ l1->resize(window->width() - 40, 2);
+
+#define OFFSET1 17
+#define OFFSET2 38
+#define OFFSET3 20
+
+#define XOFFSET 20
+ // Drumkit file
+ {
+ int y = 37;
+ Label *lbl = new Label(window);
+ lbl->setText("Drumkit file:");
+ lbl->move(XOFFSET - 4, y);
+ lbl->resize(100, 20);
+
+ y += OFFSET1;
+ lineedit = new LineEdit(window);
+ lineedit->move(XOFFSET, y);
+ lineedit->resize(243, 29);
+ lineedit->setReadOnly(true);
+
+ Button *btn_brw = new Button(window);
+ btn_brw->setText("Browse...");
+ btn_brw->move(266, y - 6 + 4);
+ btn_brw->resize(85, 35 + 6 - 4);
+ btn_brw->registerClickHandler(kitBrowseClick, this);
+
+ y += OFFSET2;
+ progress = new ProgressBar(window);
+ progress->move(XOFFSET, y);
+ progress->resize(window->width() - 2*XOFFSET, 11);
+
+ y += OFFSET3;
+ VerticalLine *l = new VerticalLine(window);
+ l->move(XOFFSET, y);
+ l->resize(window->width() - 2*XOFFSET, 2);
+ }
+
+ // Midimap file
+ {
+ int y = 120;
+ lbl2 = new Label(window);
+ lbl2->setText("Midimap file:");
+ lbl2->move(XOFFSET - 4, y);
+ lbl2->resize(100, 20);
+
+ y += OFFSET1;
+ lineedit2 = new LineEdit(window);
+ lineedit2->move(XOFFSET, y);
+ lineedit2->resize(243, 29);
+ lineedit2->setReadOnly(true);
+
+ Button *btn_brw = new Button(window);
+ btn_brw->setText("Browse...");
+ btn_brw->move(266, y - 6 + 4);
+ btn_brw->resize(85, 35 + 6 - 4);
+ btn_brw->registerClickHandler(midimapBrowseClick, this);
+
+ y += OFFSET2;
+ progress2 = new ProgressBar(window);
+ progress2->move(XOFFSET, y);
+ progress2->resize(window->width() - 2*XOFFSET, 11);
+
+ y += OFFSET3;
+ VerticalLine *l = new VerticalLine(window);
+ l->move(XOFFSET, y);
+ l->resize(window->width() - 2*XOFFSET, 2);
+ }
+
+ {
+ int y = 203;
+#define OFFSET4 21
+
+ // Enable Velocity
+ Label *lbl_velocity = new Label(window);
+ lbl_velocity->resize(78 ,20);
+ lbl_velocity->move(16, y);
+ lbl_velocity->setText("Humanizer");
+
+ velocityCheck = new CheckBox(window);
+ //velocityCheck->setText("Enable Velocity Modifier");
+ velocityCheck->move(26, y + OFFSET4);
+ velocityCheck->resize(59,38);
+ obj_connect(velocityCheck, stateChangedNotifier,
+ this, PluginGUI::velocityCheckClick);
+
+ // Velocity Weight Modifier:
+ {
+ Label *lbl_weight = new Label(window);
+ lbl_weight->setText("Attack");
+ lbl_weight->move(107, y);
+ lbl_weight->resize(100, 20);
+
+ attackKnob = new Knob(window);
+ attackKnob->move(109, y + OFFSET4 - 4);
+ attackKnob->resize(57, 57);
+ obj_connect(attackKnob, valueChangedNotifier,
+ this, PluginGUI::attackValueChanged);
+ }
+
+ // Velocity Falloff Modifier:
+ {
+ Label *lbl_falloff = new Label(window);
+ lbl_falloff->setText("Release");
+ lbl_falloff->move(202 - 17 - 7, y);
+ lbl_falloff->resize(100, 20);
+
+ falloffKnob = new Knob(window);
+ falloffKnob->move(202 - 13 - 5, y + OFFSET4 - 4);
+ falloffKnob->resize(57, 57);
+ obj_connect(falloffKnob, valueChangedNotifier,
+ this, PluginGUI::falloffValueChanged); }
+ }
+
+ VerticalLine *l2 = new VerticalLine(window);
+ l2->move(20, 310 - 15 - 9);
+ l2->resize(window->width() - 40, 2);
+
+ Label *lbl_version = new Label(window);
+ lbl_version->setText(".::. v" VERSION " .::. http://www.drumgizmo.org .::. GPLv3 .::.");
+ lbl_version->move(16, 300);
+ lbl_version->resize(window->width(), 20);
+ /*
+ {
+ ComboBox *cmb = new ComboBox(window);
+ cmb->addItem("Foo", "Bar");
+ cmb->addItem("Hello", "World");
+ cmb->move(10,10);
+ cmb->resize(70, 30);
+ }
+ */
+ // Create filebrowser
+ filebrowser = new FileBrowser(window);
+ filebrowser->move(0, 0);
+ filebrowser->resize(window->width() - 1, window->height() - 1);
+ filebrowser->hide();
+ fb = filebrowser;
+
+ // Enable quit button
+// Button *btn_quit = new Button(window);
+// btn_quit->setText("Quit");
+// btn_quit->move(50,280);
+// btn_quit->resize(80,80);
+// btn_quit->registerClickHandler(quit, this);
+
+ window->show();
+
+ sem.post();
+
+ initialised = true;
+}
+
+void PluginGUI::show()
+{
+ while(!initialised) usleep(10000);
+
+ if(!window) init();
+
+ window->show();
+}
+
+void PluginGUI::hide()
+{
+ while(!initialised) usleep(10000);
+
+ if(window) window->hide();
+}
+
+void PluginGUI::processEvents()
+{
+ if(!initialised) return;
+
+ if(closing) {
+ if(windowClosedHandler) windowClosedHandler(windowClosedPtr);
+ closing = false;
+ }
+
+#ifndef USE_THREAD
+ window->eventHandler()->processEvents(window);
+#endif/*USE_THREAD*/
+}
+
+void PluginGUI::setWindowClosedCallback(void (*handler)(void *), void *ptr)
+{
+ windowClosedHandler = handler;
+ windowClosedPtr = ptr;
+}
+
+void PluginGUI::attackValueChanged(float value)
+{
+ ChangeSettingMessage *msg =
+ new ChangeSettingMessage(ChangeSettingMessage::velocity_modifier_weight,
+ value);
+
+ msghandler.sendMessage(MSGRCV_ENGINE, msg);
+
+#ifdef STANDALONE
+ int i = value * 4;
+ switch(i) {
+ case 0: progress->setState(ProgressBar::off); break;
+ case 1: progress->setState(ProgressBar::blue); break;
+ case 2: progress->setState(ProgressBar::green); break;
+ case 3: progress->setState(ProgressBar::red); break;
+ default: break;
+ }
+#endif
+}
+
+void PluginGUI::falloffValueChanged(float value)
+{
+ ChangeSettingMessage *msg =
+ new ChangeSettingMessage(ChangeSettingMessage::velocity_modifier_falloff,
+ value);
+ msghandler.sendMessage(MSGRCV_ENGINE, msg);
+
+#ifdef STANDALONE
+ progress->setProgress(value);
+#endif
+}
+
+void PluginGUI::velocityCheckClick(bool checked)
+{
+ ChangeSettingMessage *msg =
+ new ChangeSettingMessage(ChangeSettingMessage::enable_velocity_modifier,
+ checked);
+ msghandler.sendMessage(MSGRCV_ENGINE, msg);
+}
+
+} // GUI::
+
+#ifdef STANDALONE
+
+class Engine : public MessageHandler {
+public:
+ void handleMessage(Message *msg) {}
+};
+
+void stop(void *ptr)
+{
+ DEBUG(stop, "Stopping...\n");
+ bool *running = (bool*)ptr;
+ *running = false;
+}
+
+int main()
+{
+ INFO(example, "We are up and running");
+
+ bool running = true;
+
+ GUI::PluginGUI gui;
+ gui.setWindowClosedCallback(stop, &running);
+
+ // gui.show();
+
+ while(running) {
+#ifdef WIN32
+ SleepEx(1000, FALSE);
+#else
+ sleep(1);
+#endif
+ }
+
+ return 0;
+}
+
+#endif/*STANDALONE*/
diff --git a/plugingui/plugingui.h b/plugingui/plugingui.h
new file mode 100644
index 0000000..dfcbcb8
--- /dev/null
+++ b/plugingui/plugingui.h
@@ -0,0 +1,107 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * plugingui.h
+ *
+ * Mon Oct 3 13:40:49 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#pragma once
+
+#include "window.h"
+#include "eventhandler.h"
+
+#include "label.h"
+#include "lineedit.h"
+#include "checkbox.h"
+#include "button.h"
+#include "knob.h"
+#include "progressbar.h"
+#include "pluginconfig.h"
+
+#include "filebrowser.h"
+
+#include "thread.h"
+#include "semaphore.h"
+
+#include "messagereceiver.h"
+#include "notifier.h"
+
+namespace GUI {
+
+class PluginGUI : public Thread, public MessageReceiver, public Listener {
+public:
+ PluginGUI();
+ virtual ~PluginGUI();
+
+ void thread_main();
+ void stopThread();
+
+ void init();
+ void deinit();
+
+ void show();
+ void hide();
+ void processEvents();
+ void setWindowClosedCallback(void (*handler)(void *), void *ptr);
+
+ void handleMessage(Message *msg);
+
+ Window *window;
+ EventHandler *eventhandler;
+
+ FileBrowser *filebrowser;
+
+ Label *lbl;
+ LineEdit *lineedit;
+ ProgressBar *progress;
+
+ Label *lbl2;
+ LineEdit *lineedit2;
+ ProgressBar *progress2;
+
+ Config *config;
+
+ void (*windowClosedHandler)(void *);
+ void *windowClosedPtr;
+
+ void (*changeMidimapHandler)(void *, const char *);
+ void *changeMidimapPtr;
+
+private:
+ void attackValueChanged(float value);
+ void falloffValueChanged(float value);
+ void velocityCheckClick(bool checked);
+
+ // Humanized velocity controls:
+ CheckBox *velocityCheck;
+ Knob *attackKnob;
+ Knob *falloffKnob;
+
+ volatile bool running;
+ volatile bool closing;
+ volatile bool initialised;
+
+ Semaphore sem;
+};
+
+} // GUI::
+
diff --git a/plugingui/progressbar.cc b/plugingui/progressbar.cc
new file mode 100644
index 0000000..3b821bb
--- /dev/null
+++ b/plugingui/progressbar.cc
@@ -0,0 +1,108 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * progressbar.cc
+ *
+ * Fri Mar 22 22:07:57 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "progressbar.h"
+
+#include "painter.h"
+
+GUI::ProgressBar::ProgressBar(GUI::Widget *parent) : GUI::Widget(parent)
+{
+ bar_bg.left = new Image(":progress_back_l.png");
+ bar_bg.right = new Image(":progress_back_r.png");
+ bar_bg.center = new Image(":progress_back_c.png");
+
+ bar_blue.left = new Image(":progress_front_blue_l.png");
+ bar_blue.right = new Image(":progress_front_blue_r.png");
+ bar_blue.center = new Image(":progress_front_blue_c.png");
+
+ bar_red.left = new Image(":progress_front_red_l.png");
+ bar_red.right = new Image(":progress_front_red_r.png");
+ bar_red.center = new Image(":progress_front_red_c.png");
+
+ bar_green.left = new Image(":progress_front_green_l.png");
+ bar_green.right = new Image(":progress_front_green_r.png");
+ bar_green.center = new Image(":progress_front_green_c.png");
+
+ state = blue;
+ _progress = .5;
+}
+
+void GUI::ProgressBar::setState(GUI::ProgressBar::state_t state)
+{
+ if(this->state != state) {
+ this->state = state;
+ repaintEvent(NULL);
+ }
+}
+
+float GUI::ProgressBar::progress()
+{
+ return _progress;
+}
+
+void GUI::ProgressBar::setProgress(float progress)
+{
+ _progress = progress;
+ repaintEvent(NULL);
+}
+
+void GUI::ProgressBar::repaintEvent(GUI::RepaintEvent *e)
+{
+ Painter p(this);
+
+ int max = width() * _progress;
+
+ p.clear();
+
+ int brd = 4;
+ p.drawBar(0, 0, &bar_bg, width(), height());
+
+ GUI::Painter::Bar *b = NULL;
+ switch(state) {
+ case red: b = &bar_red; break;
+ case green: b = &bar_green; break;
+ case blue: b = &bar_blue; break;
+ default: break;
+ }
+ if(b) p.drawBar(brd, 0, b, max - 2*brd, height());
+}
+
+#ifdef TEST_PROGRESSBAR
+//Additional dependency files
+//deps:
+//Required cflags (autoconf vars may be used)
+//cflags:
+//Required link options (autoconf vars may be used)
+//libs:
+#include "test.h"
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+
+TEST_END;
+
+#endif/*TEST_PROGRESSBAR*/
diff --git a/plugingui/progressbar.h b/plugingui/progressbar.h
new file mode 100644
index 0000000..9d08a9e
--- /dev/null
+++ b/plugingui/progressbar.h
@@ -0,0 +1,71 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * progressbar.h
+ *
+ * Fri Mar 22 22:07:57 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_PROGRESSBAR_H__
+#define __DRUMGIZMO_PROGRESSBAR_H__
+
+#include "widget.h"
+
+#include <string>
+
+#include "guievent.h"
+#include "painter.h"
+
+namespace GUI {
+
+class ProgressBar : public Widget {
+public:
+ ProgressBar(Widget *parent);
+
+ float progress();
+ void setProgress(float progress);
+
+ typedef enum {
+ red,
+ green,
+ blue,
+ off
+ } state_t;
+ void setState(state_t state);
+
+ //protected:
+ virtual void repaintEvent(RepaintEvent *e);
+
+private:
+ state_t state;
+
+ Painter::Bar bar_bg;
+
+ Painter::Bar bar_green;
+ Painter::Bar bar_blue;
+ Painter::Bar bar_red;
+
+ float _progress;
+};
+
+};
+
+#endif/*__DRUMGIZMO_PROGRESSBAR_H__*/
diff --git a/plugingui/rcgen.cc b/plugingui/rcgen.cc
new file mode 100644
index 0000000..5cb0999
--- /dev/null
+++ b/plugingui/rcgen.cc
@@ -0,0 +1,71 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * rcgen.cc
+ *
+ * Sun Mar 17 20:27:17 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include <stdio.h>
+#include <string>
+
+int main(int argc, char *argv[])
+{
+ printf("/* This file is autogenerated by rcgen. Do not modify! */\n");
+ printf("#include \"resource_data.h\"\n");
+ printf("\n");
+ printf("const rc_data_t rc_data[] =\n");
+ printf("{\n");
+
+ int i = 1;
+ while(i < argc) {
+ printf(" { \":%s\", ", argv[i]);
+
+ std::string data;
+ FILE *fp = fopen(argv[i], "r");
+ if(!fp) {
+ fprintf(stderr, "Could not read file '%s' - quitting\n", argv[i]);
+ return 1;
+ }
+
+ char buf[32];
+ while(!feof(fp)) {
+ size_t sz = fread(buf, 1, sizeof(buf), fp);
+ data.append(buf, sz);
+ }
+ fclose(fp);
+
+ printf("%d,\n \"", (int)data.length());
+ for(size_t j = 0; j < data.length(); j++) {
+ if(j != 0 && j % 16 == 0) printf("\"\n \"");
+ printf("\\%o", (unsigned char)data[j]);
+ }
+
+ printf("\" },\n");
+
+ i++;
+ }
+
+printf(" { \"\", 0, 0 }\n");
+printf("};\n");
+
+ return 0;
+}
diff --git a/plugingui/resource.cc b/plugingui/resource.cc
new file mode 100644
index 0000000..80bd51e
--- /dev/null
+++ b/plugingui/resource.cc
@@ -0,0 +1,119 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * resource.cc
+ *
+ * Sun Mar 17 19:38:04 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "resource.h"
+
+#include <stdio.h>
+#include <hugin.hpp>
+#include "resource_data.h"
+
+GUI::Resource::Resource(std::string name)
+{
+ is_valid = false;
+ is_internal = false;
+
+ if(name.length() == 0) return;
+ if(name[0] == ':') {
+ i_data = NULL;
+ i_size = 0;
+
+ // Use internal resource:
+ const rc_data_t *p = rc_data;
+ while(p->name[0] == ':') {
+ if(std::string(p->name) == name) {
+ i_data = p->data;
+ i_size = p->size;
+ break;
+ }
+ p++;
+ }
+
+ // We did not find the named resource.
+ if(i_data == NULL) {
+ ERR(rc, "Could not find '%s'\n", name.c_str());
+ return;
+ }
+
+ is_internal = true;
+ } else {
+ // Read from file:
+ FILE *fp = fopen(name.c_str(), "r");
+ if(!fp) return;
+ char buf[32];
+ while(!feof(fp)) {
+ size_t sz = fread(buf, 1, sizeof(buf), fp);
+ e_data.append(buf, sz);
+ }
+ fclose(fp);
+ is_internal = false;
+ }
+
+ is_valid = true;
+}
+
+const char *GUI::Resource::data()
+{
+ if(is_valid == false) return NULL;
+ if(is_internal) {
+ return i_data;
+ } else {
+ return e_data.data();
+ }
+ return NULL;
+}
+
+size_t GUI::Resource::size()
+{
+ if(is_valid == false) return 0;
+ if(is_internal) {
+ return i_size;
+ } else {
+ return e_data.length();
+ }
+ return 0;
+}
+
+bool GUI::Resource::valid()
+{
+ return is_valid;
+}
+
+#ifdef TEST_RESOURCE
+//Additional dependency files
+//deps:
+//Required cflags (autoconf vars may be used)
+//cflags:
+//Required link options (autoconf vars may be used)
+//libs:
+#include "test.h"
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+
+TEST_END;
+
+#endif/*TEST_RESOURCE*/
diff --git a/plugingui/resource.h b/plugingui/resource.h
new file mode 100644
index 0000000..4b494f7
--- /dev/null
+++ b/plugingui/resource.h
@@ -0,0 +1,53 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * resource.h
+ *
+ * Sun Mar 17 19:38:03 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_RESOURCE_H__
+#define __DRUMGIZMO_RESOURCE_H__
+
+#include <string>
+
+namespace GUI {
+
+class Resource {
+public:
+ Resource(std::string name);
+
+ const char *data();
+ size_t size();
+
+ bool valid();
+
+private:
+ std::string e_data;
+ bool is_valid;
+ bool is_internal;
+ const char *i_data;
+ size_t i_size;
+};
+
+};
+
+#endif/*__DRUMGIZMO_RESOURCE_H__*/
diff --git a/plugingui/resource_data.cc b/plugingui/resource_data.cc
new file mode 100644
index 0000000..ce29fd8
--- /dev/null
+++ b/plugingui/resource_data.cc
@@ -0,0 +1,3583 @@
+/* This file is autogenerated by rcgen. Do not modify! */
+#include "resource_data.h"
+
+const rc_data_t rc_data[] =
+{
+ { ":bg.png", 1123,
+ "\211\120\116\107\15\12\32\12\0\0\0\15\111\110\104\122"
+ "\0\0\1\162\0\0\1\112\10\6\0\0\0\0\15\324"
+ "\311\0\0\0\6\142\113\107\104\0\377\0\377\0\377\240"
+ "\275\247\223\0\0\0\11\160\110\131\163\0\0\15\327\0"
+ "\0\15\327\1\102\50\233\170\0\0\0\7\164\111\115\105"
+ "\7\335\4\6\13\15\70\43\146\165\177\0\0\3\360\111"
+ "\104\101\124\170\332\355\334\261\15\200\60\20\4\101\100\364"
+ "\137\240\233\61\65\134\162\74\142\246\4\7\253\13\136\76"
+ "\327\132\373\0\340\263\56\117\0\40\344\0\10\71\0\102"
+ "\16\40\344\0\174\321\275\267\243\25\0\213\34\0\41\7"
+ "\100\310\1\204\34\0\41\7\240\314\325\12\200\105\16\200"
+ "\220\3\40\344\0\102\16\200\220\3\40\344\0\10\71\200"
+ "\220\3\40\344\0\10\71\0\102\16\40\344\0\214\347\323"
+ "\54\0\213\34\0\41\7\100\310\1\204\34\0\41\7\100"
+ "\310\1\10\71\77\4\260\310\1\20\162\0\204\34\100\310"
+ "\1\20\162\0\372\134\255\0\130\344\0\10\71\0\102\16"
+ "\40\344\0\10\71\0\175\256\126\0\54\162\0\204\34\0"
+ "\41\7\20\162\0\204\34\0\41\7\40\344\374\20\300\42"
+ "\7\100\310\1\20\162\0\41\7\100\310\1\350\163\265\2"
+ "\140\221\3\40\344\0\10\71\200\220\3\40\344\0\10\71"
+ "\0\102\16\40\344\0\10\71\0\102\16\200\220\3\10\71"
+ "\0\343\371\64\13\300\42\7\100\310\1\20\162\0\41\7"
+ "\100\310\1\20\162\0\102\316\17\1\54\162\0\204\34\0"
+ "\41\7\20\162\0\204\34\200\76\127\53\0\26\71\0\102"
+ "\16\200\220\3\10\71\0\102\16\200\220\3\20\162\176\10"
+ "\140\221\3\40\344\0\10\71\200\220\3\40\344\0\364\271"
+ "\132\1\260\310\1\20\162\0\204\34\100\310\1\20\162\0"
+ "\372\134\255\0\130\344\0\10\71\0\102\16\40\344\0\10"
+ "\71\0\102\16\200\220\3\10\71\0\102\16\200\220\3\40"
+ "\344\0\102\16\300\170\76\315\2\260\310\1\20\162\0\204"
+ "\34\100\310\1\20\162\0\204\34\200\220\363\103\0\213\34"
+ "\0\41\7\100\310\1\204\34\0\41\7\240\317\325\12\200"
+ "\105\16\200\220\3\40\344\0\102\16\200\220\3\40\344\0"
+ "\204\234\37\2\130\344\0\10\71\0\102\16\40\344\0\10"
+ "\71\0\175\256\126\0\54\162\0\204\34\0\41\7\20\162"
+ "\0\204\34\200\76\127\53\0\26\71\0\102\16\200\220\3"
+ "\10\71\0\102\16\200\220\3\40\344\0\102\16\200\220\3"
+ "\40\344\0\10\71\200\220\3\60\236\117\263\0\54\162\0"
+ "\204\34\0\41\7\20\162\0\204\34\0\41\7\40\344\374"
+ "\20\300\42\7\100\310\1\20\162\0\41\7\100\310\1\350"
+ "\163\265\2\140\221\3\40\344\0\10\71\200\220\3\40\344"
+ "\0\10\71\0\41\347\207\0\26\71\0\102\16\200\220\3"
+ "\10\71\0\102\16\100\237\253\25\0\213\34\0\41\7\100"
+ "\310\1\204\34\0\41\7\100\310\1\10\71\77\4\260\310"
+ "\1\20\162\0\204\34\100\310\1\20\162\0\204\34\0\41"
+ "\7\20\162\0\204\34\0\41\7\100\310\1\376\300\137\53"
+ "\0\26\71\0\102\16\200\220\3\10\71\0\102\16\200\220"
+ "\3\20\162\176\10\140\221\3\40\344\0\10\71\200\220\3"
+ "\40\344\0\364\271\132\1\260\310\1\20\162\0\204\34\100"
+ "\310\1\20\162\0\204\34\200\220\363\103\0\213\34\0\41"
+ "\7\100\310\1\204\34\0\41\7\240\317\325\12\200\105\16"
+ "\200\220\3\40\344\0\102\16\200\220\3\40\344\0\204\234"
+ "\37\2\130\344\0\10\71\0\102\16\40\344\0\10\71\0"
+ "\102\16\200\220\3\10\71\0\102\16\200\220\3\40\344\0"
+ "\177\340\257\25\0\213\34\0\41\7\100\310\1\204\34\0"
+ "\41\7\100\310\1\10\71\77\4\260\310\1\20\162\0\204"
+ "\34\100\310\1\20\162\0\372\134\255\0\130\344\0\10\71"
+ "\0\102\16\40\344\0\10\71\0\102\16\100\310\371\41\200"
+ "\105\16\200\220\3\40\344\0\102\16\200\220\3\320\347\152"
+ "\5\300\42\7\100\310\1\20\162\0\41\7\100\310\1\20"
+ "\162\0\102\316\17\1\54\162\0\204\34\0\41\7\20\162"
+ "\0\204\34\200\76\127\53\0\26\71\0\102\16\200\220\3"
+ "\10\71\0\102\16\200\220\3\40\344\0\102\16\200\220\3"
+ "\40\344\0\10\71\200\220\3\60\236\117\263\0\54\162\0"
+ "\204\34\0\41\7\20\162\0\204\34\200\76\127\53\0\26"
+ "\71\0\102\16\200\220\3\10\71\0\102\16\200\220\3\20"
+ "\162\176\10\140\221\3\40\344\0\10\71\200\220\3\40\344"
+ "\0\364\271\132\1\260\310\1\20\162\0\204\34\100\310\1"
+ "\20\162\0\204\34\200\220\363\103\0\213\34\200\67\75\173"
+ "\113\211\365\123\166\223\131\0\0\0\0\111\105\116\104\256"
+ "\102\140\202" },
+ { ":font.png", 4945,
+ "\211\120\116\107\15\12\32\12\0\0\0\15\111\110\104\122"
+ "\0\0\3\40\0\0\0\15\10\6\0\0\0\121\252\12"
+ "\35\0\0\0\4\147\101\115\101\0\0\257\310\67\5\212"
+ "\351\0\0\0\31\164\105\130\164\123\157\146\164\167\141\162"
+ "\145\0\101\144\157\142\145\40\111\155\141\147\145\122\145\141"
+ "\144\171\161\311\145\74\0\0\22\343\111\104\101\124\170\332"
+ "\354\135\11\230\25\305\21\356\307\356\262\313\215\10\54\10"
+ "\22\271\24\166\225\313\5\42\304\3\101\24\121\324\150\4"
+ "\305\170\200\7\212\170\340\255\200\242\150\104\23\121\320\250"
+ "\11\340\201\312\41\342\155\124\40\12\30\14\106\274\242\202"
+ "\34\36\53\40\2\131\105\271\4\144\322\25\377\316\326\353"
+ "\327\75\323\63\357\140\141\137\357\127\337\316\233\352\153\372"
+ "\250\256\277\252\173\106\170\236\47\344\237\47\144\250\344\377"
+ "\23\256\265\173\316\301\65\276\137\274\144\312\144\327\267\110"
+ "\172\206\335\173\126\322\250\124\225\157\51\323\231\357\122\116"
+ "\62\165\254\114\174\227\266\116\307\70\115\327\170\116\145\375"
+ "\222\345\247\173\234\246\143\276\245\253\177\322\361\54\225\241"
+ "\34\153\77\322\372\153\240\335\75\276\135\345\165\12\373\140"
+ "\244\244\31\222\142\352\236\255\75\14\353\164\74\217\351\64"
+ "\41\353\343\205\154\317\223\45\175\35\62\235\27\145\176\373"
+ "\76\157\242\376\42\52\202\334\214\312\217\322\167\231\232\347"
+ "\311\310\321\124\360\302\346\141\224\57\152\156\125\200\377\42"
+ "\13\100\234\1\310\321\20\66\104\75\130\37\367\226\264\134"
+ "\122\325\44\7\262\111\340\204\55\223\327\167\137\111\33\44"
+ "\355\307\356\65\305\275\272\216\345\247\13\200\164\222\264\214"
+ "\335\247\105\147\254\244\357\44\225\111\372\3\137\210\120\67"
+ "\317\122\307\343\44\315\225\264\125\322\32\111\23\361\354\212"
+ "\177\274\244\171\222\266\201\377\250\244\102\113\235\347\361\62"
+ "\14\145\173\6\76\205\366\222\136\223\264\111\322\152\111\203"
+ "\2\322\157\144\374\26\222\136\304\263\177\207\353\26\214\117"
+ "\175\365\230\244\377\110\132\17\120\131\221\1\310\31\222\76"
+ "\105\177\274\47\251\273\41\217\46\222\356\301\30\336\206\347"
+ "\172\136\122\257\200\162\227\251\161\143\131\200\25\375\210\61"
+ "\321\126\313\207\306\302\7\222\176\222\264\102\322\271\206\364"
+ "\73\320\207\323\45\165\160\30\13\136\320\130\141\345\123\176"
+ "\57\243\377\251\175\26\112\72\325\101\71\361\2\24\15\317"
+ "\47\217\42\364\107\117\107\45\346\2\3\273\217\241\214\105"
+ "\16\12\334\11\222\76\106\173\323\377\276\76\355\271\1\143"
+ "\240\171\100\36\47\6\344\361\222\244\326\132\234\106\222\36"
+ "\227\364\15\306\333\174\344\33\324\257\236\113\337\260\65\364"
+ "\102\214\33\133\40\336\205\54\277\56\214\127\25\262\57\217"
+ "\335\43\376\107\210\117\206\244\133\265\374\156\243\373\340\323"
+ "\170\357\247\361\351\367\234\240\147\144\365\327\177\323\134\353"
+ "\350\63\327\364\161\170\70\346\362\6\134\213\20\140\202\302"
+ "\165\220\13\345\153\163\305\6\40\53\45\165\13\251\4\173"
+ "\56\174\226\127\340\30\254\244\0\304\113\145\135\52\30\0"
+ "\271\10\72\337\16\113\377\376\54\151\255\244\241\311\324\237"
+ "\377\17\15\34\42\246\117\50\77\13\100\234\1\210\132\100"
+ "\111\250\377\33\374\134\111\237\350\202\337\60\20\110\1\250"
+ "\17\100\61\303\240\100\177\211\262\110\340\237\231\104\231\274"
+ "\276\127\112\372\213\241\116\223\45\135\312\356\75\2\140\242"
+ "\0\312\43\31\0\40\243\264\205\206\46\334\142\50\37\315"
+ "\161\175\276\43\110\172\35\12\122\115\111\15\45\75\4\45"
+ "\104\361\377\56\351\24\50\362\265\120\366\134\103\336\347\110"
+ "\372\207\5\200\370\75\377\201\222\112\45\15\224\264\217\244"
+ "\146\222\236\362\151\103\122\70\357\146\174\122\102\307\240\176"
+ "\104\167\340\36\357\237\251\0\115\205\120\142\316\253\300\0"
+ "\344\145\50\55\5\222\176\217\261\315\363\40\220\361\55\372"
+ "\237\200\133\165\111\15\44\15\220\264\104\322\237\54\345\166"
+ "\3\237\350\260\200\205\235\372\371\46\111\357\62\76\225\265"
+ "\16\126\113\32\53\55\265\261\256\322\223\2\330\112\322\15"
+ "\0\204\207\206\125\36\54\274\142\74\367\45\60\12\24\340"
+ "\231\146\245\21\200\164\7\310\353\22\102\211\371\227\244\34"
+ "\215\375\206\241\214\127\45\365\367\251\247\152\157\2\14\265"
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+ "\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377"
+ "\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377"
+ "\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377"
+ "\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377" },
+ { "", 0, 0 }
+};
diff --git a/plugingui/resource_data.h b/plugingui/resource_data.h
new file mode 100644
index 0000000..c81c6cc
--- /dev/null
+++ b/plugingui/resource_data.h
@@ -0,0 +1,38 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * resource_data.h
+ *
+ * Sun Mar 17 20:25:24 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_RESOURCE_DATA_H__
+#define __DRUMGIZMO_RESOURCE_DATA_H__
+
+typedef struct {
+ const char *name;
+ unsigned int size;
+ const char *data;
+} rc_data_t;
+
+extern const rc_data_t rc_data[];
+
+#endif/*__DRUMGIZMO_RESOURCE_DATA_H__*/
diff --git a/plugingui/resources/bg.png b/plugingui/resources/bg.png
new file mode 100644
index 0000000..ed438d2
--- /dev/null
+++ b/plugingui/resources/bg.png
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diff --git a/plugingui/resources/createrc.sh b/plugingui/resources/createrc.sh
new file mode 100755
index 0000000..838713a
--- /dev/null
+++ b/plugingui/resources/createrc.sh
@@ -0,0 +1,2 @@
+#!/bin/bash
+../rcgen *.png png_error > ../resource_data.cc
diff --git a/plugingui/resources/font.png b/plugingui/resources/font.png
new file mode 100644
index 0000000..ffcafbc
--- /dev/null
+++ b/plugingui/resources/font.png
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diff --git a/plugingui/resources/fontemboss.png b/plugingui/resources/fontemboss.png
new file mode 100644
index 0000000..2f13eeb
--- /dev/null
+++ b/plugingui/resources/fontemboss.png
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diff --git a/plugingui/resources/knob.png b/plugingui/resources/knob.png
new file mode 100644
index 0000000..792db2a
--- /dev/null
+++ b/plugingui/resources/knob.png
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diff --git a/plugingui/resources/logo.png b/plugingui/resources/logo.png
new file mode 100644
index 0000000..6f9dc40
--- /dev/null
+++ b/plugingui/resources/logo.png
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diff --git a/plugingui/resources/png_error b/plugingui/resources/png_error
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index 0000000..cadb45e
--- /dev/null
+++ b/plugingui/resources/png_error
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diff --git a/plugingui/resources/progress_back_c.png b/plugingui/resources/progress_back_c.png
new file mode 100644
index 0000000..a1882a1
--- /dev/null
+++ b/plugingui/resources/progress_back_c.png
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diff --git a/plugingui/resources/progress_back_l.png b/plugingui/resources/progress_back_l.png
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index 0000000..f250f5e
--- /dev/null
+++ b/plugingui/resources/progress_back_l.png
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diff --git a/plugingui/resources/progress_back_r.png b/plugingui/resources/progress_back_r.png
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index 0000000..701d98a
--- /dev/null
+++ b/plugingui/resources/progress_back_r.png
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diff --git a/plugingui/resources/progress_front_blue_c.png b/plugingui/resources/progress_front_blue_c.png
new file mode 100644
index 0000000..5a18e05
--- /dev/null
+++ b/plugingui/resources/progress_front_blue_c.png
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diff --git a/plugingui/resources/progress_front_blue_l.png b/plugingui/resources/progress_front_blue_l.png
new file mode 100644
index 0000000..513e6bc
--- /dev/null
+++ b/plugingui/resources/progress_front_blue_l.png
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new file mode 100644
index 0000000..e339f3b
--- /dev/null
+++ b/plugingui/resources/progress_front_blue_r.png
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diff --git a/plugingui/resources/progress_front_green_c.png b/plugingui/resources/progress_front_green_c.png
new file mode 100644
index 0000000..5055b76
--- /dev/null
+++ b/plugingui/resources/progress_front_green_c.png
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diff --git a/plugingui/resources/progress_front_green_l.png b/plugingui/resources/progress_front_green_l.png
new file mode 100644
index 0000000..58c2c08
--- /dev/null
+++ b/plugingui/resources/progress_front_green_l.png
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--- /dev/null
+++ b/plugingui/resources/progress_front_green_r.png
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diff --git a/plugingui/resources/progress_front_red_c.png b/plugingui/resources/progress_front_red_c.png
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index 0000000..b483faf
--- /dev/null
+++ b/plugingui/resources/progress_front_red_c.png
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diff --git a/plugingui/resources/pushbutton_b.png b/plugingui/resources/pushbutton_b.png
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diff --git a/plugingui/resources/vertline.png b/plugingui/resources/vertline.png
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diff --git a/plugingui/resources/widget_b.png b/plugingui/resources/widget_b.png
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diff --git a/plugingui/scrollbar.cc b/plugingui/scrollbar.cc
new file mode 100644
index 0000000..07dc36b
--- /dev/null
+++ b/plugingui/scrollbar.cc
@@ -0,0 +1,185 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * scrollbar.cc
+ *
+ * Sun Apr 14 12:54:58 CEST 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "scrollbar.h"
+
+#include <hugin.hpp>
+
+#include "painter.h"
+
+GUI::ScrollBar::ScrollBar(GUI::Widget *parent)
+ : GUI::Widget(parent), bg_img(":widget_c.png")
+{
+ handler = NULL;
+ ptr = NULL;
+}
+
+void GUI::ScrollBar::setRange(int r)
+{
+ DEBUG(scroll, "%d\n", r);
+ ran = r;
+ setValue(value());
+ repaintEvent(NULL);
+}
+
+int GUI::ScrollBar::range()
+{
+ return ran;
+}
+
+void GUI::ScrollBar::setMaximum(int m)
+{
+ DEBUG(scroll, "%d\n", m);
+ max = m;
+ if(max < ran) ran = max;
+ setValue(value());
+ repaintEvent(NULL);
+}
+
+int GUI::ScrollBar::maximum()
+{
+ return max;
+}
+
+void GUI::ScrollBar::setValue(int value)
+{
+ val = value;
+ if(val > max - ran) val = max - ran;
+ if(val < 0) val = 0;
+
+ if(handler) handler(ptr);
+
+ repaintEvent(NULL);
+}
+
+int GUI::ScrollBar::value()
+{
+ return val;
+}
+
+void GUI::ScrollBar::registerValueChangeHandler(void (*handler)(void *),
+ void *ptr)
+{
+ this->handler = handler;
+ this->ptr = ptr;
+}
+
+static void drawArrow(GUI::Painter &p, int x, int y, int w, int h)
+{
+ if(h < 0) y -= h;
+
+ p.drawLine(x, y, x+(w/2), y+h);
+ p.drawLine(x+(w/2), y+h, x+w, y);
+
+ y++;
+ p.drawLine(x, y, x+(w/2), y+h);
+ p.drawLine(x+(w/2), y+h, x+w, y);
+}
+
+void GUI::ScrollBar::repaintEvent(RepaintEvent *e)
+{
+ GUI::Painter p(this);
+
+ p.clear();
+
+ p.drawImageStretched(0, 0, &bg_img, width(), height());
+
+ p.setColour(GUI::Colour(183.0/255.0, 219.0/255.0 , 255.0/255.0, 1));
+ if(!max) return;
+
+ {
+ int h = height() - 2 * width() - 3;
+ int offset = width() + 2;
+
+ int y_val1 = (val * h) / max;
+ int y_val2 = ((val + ran) * h) / max;
+
+ p.drawFilledRectangle(2, y_val1 + offset, width() - 1, y_val2 + offset);
+ }
+
+ p.drawLine(0, 0, 0, height());
+
+ drawArrow(p, width()/4, width()/4, width()/2, -1 * (width()/3));
+ p.drawLine(0, width(), width(), width());
+
+ drawArrow(p, width()/4, height() - width() + width()/4, width()/2, width()/3);
+ p.drawLine(0, height() - width(), width(), height() - width());
+}
+
+void GUI::ScrollBar::scrollEvent(ScrollEvent *e)
+{
+ setValue(value() + e->delta);
+}
+
+void GUI::ScrollBar::mouseMoveEvent(MouseMoveEvent *e)
+{
+ if(!dragging) return;
+
+ float delta = yoffset - e->y;
+
+ int h = height() - 2 * width() - 3;
+ delta /= (float)h / (float)max;
+
+ int newval = value_offset - delta;
+ if(newval != value()) setValue(newval);
+}
+
+void GUI::ScrollBar::buttonEvent(ButtonEvent *e)
+{
+ if(e->y < (int)width() && e->y > 0) {
+ if(e->direction == -1) setValue(value() - 1);
+ return;
+ }
+
+ if(e->y > (int)height() - (int)width() && e->y < (int)height()) {
+ if(e->direction == -1) setValue(value() + 1);
+ return;
+ }
+
+ if(e->direction == 1) {
+ yoffset = e->y;
+ value_offset = value();
+ }
+
+ dragging = (e->direction == 1);
+}
+
+#ifdef TEST_SCROLLBAR
+//Additional dependency files
+//deps:
+//Required cflags (autoconf vars may be used)
+//cflags:
+//Required link options (autoconf vars may be used)
+//libs:
+#include "test.h"
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+
+TEST_END;
+
+#endif/*TEST_SCROLLBAR*/
diff --git a/plugingui/scrollbar.h b/plugingui/scrollbar.h
new file mode 100644
index 0000000..52acf9d
--- /dev/null
+++ b/plugingui/scrollbar.h
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * scrollbar.h
+ *
+ * Sun Apr 14 12:54:58 CEST 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_SCROLLBAR_H__
+#define __DRUMGIZMO_SCROLLBAR_H__
+
+#include "widget.h"
+#include "image.h"
+
+namespace GUI {
+
+class ScrollBar : public Widget {
+public:
+ ScrollBar(Widget *parent);
+
+ bool catchMouse() { return true; }
+
+ void setRange(int range);
+ int range();
+
+ void setMaximum(int max);
+ int maximum();
+
+ void setValue(int value);
+ int value();
+
+ void registerValueChangeHandler(void (*handler)(void *), void *ptr);
+
+ void repaintEvent(RepaintEvent *e);
+ void scrollEvent(ScrollEvent *e);
+ void buttonEvent(ButtonEvent *e);
+ void mouseMoveEvent(MouseMoveEvent *e);
+
+private:
+ int max;
+ int val;
+ int ran;
+
+ int yoffset;
+ int value_offset;
+ bool dragging;
+
+ Image bg_img;
+
+ void (*handler)(void *);
+ void *ptr;
+};
+
+};
+
+
+#endif/*__DRUMGIZMO_SCROLLBAR_H__*/
diff --git a/plugingui/signal.cc b/plugingui/signal.cc
new file mode 100644
index 0000000..5ba145e
--- /dev/null
+++ b/plugingui/signal.cc
@@ -0,0 +1,478 @@
+#include <iostream>
+#include <functional>
+#include <vector>
+#include <map>
+#include <set>
+#include <type_traits>
+#include <utility>
+
+/////////////////////////////////////////
+//
+// Listener and Notifier classes:
+//
+/////////////////////////////////////////
+
+class Listener;
+class NotifierBase {
+public:
+ virtual void disconnect(Listener* object) {}
+};
+
+class Listener {
+public:
+ virtual ~Listener()
+ {
+ for (auto signal = signals.begin(); signal != signals.end(); ++signal) {
+ (*signal)->disconnect(this);
+ }
+ }
+
+ void registerNotifier(NotifierBase* signal)
+ {
+ signals.insert(signal);
+ }
+
+ void unregisterNotifier(NotifierBase* signal)
+ {
+ signals.erase(signal);
+ }
+
+ std::set<NotifierBase*> signals;
+};
+
+template<typename T, typename... Args>
+class Notifier : public NotifierBase {
+public:
+ Notifier() {}
+ ~Notifier()
+ {
+ for (auto slot = slots.begin(); slot != slots.end(); ++slot) {
+ (*slot).first->unregisterNotifier(this);
+ }
+ }
+
+ void connect(Listener* object, std::function<void(T, Args...)> slot)
+ {
+ slots[object] = slot;
+ if(object) {
+ object->registerNotifier(this);
+ }
+ }
+
+ void disconnect(Listener* object)
+ {
+ slots.erase(object);
+ }
+
+ void notify(T t, Args...args)
+ {
+ for (auto slot = slots.begin(); slot != slots.end(); ++slot) {
+ (*slot).second(t, args...);
+ }
+ }
+
+ std::map<Listener*, std::function<void(T, Args...)>> slots;
+};
+
+/////////////////////////////////////////
+//
+// Code which I don't understand but does something clever and produces a compile warning:
+//
+/////////////////////////////////////////
+
+template<unsigned... Is> struct seq{};
+template<unsigned I, unsigned... Is>
+struct gen_seq : gen_seq<I-1, I-1, Is...>{};
+template<unsigned... Is>
+struct gen_seq<0, Is...> : seq<Is...>{};
+
+template<unsigned I> struct placeholder{};
+
+namespace std{
+template<unsigned I>
+struct is_placeholder< ::placeholder<I> > : integral_constant<int, I>{};
+} // std::
+
+namespace aux{
+template<unsigned... Is, class F, class... Ts>
+auto easy_bind(seq<Is...>, F&& f, Ts&&... vs)
+ -> decltype(std::bind(std::forward<F>(f), std::forward<Ts>(vs)..., ::placeholder<1 + Is>()...))
+{
+ return std::bind(std::forward<F>(f), std::forward<Ts>(vs)..., ::placeholder<1 + Is>()...);
+}
+} // aux::
+
+template<class R, class C, class... FArgs, class... Args>
+auto mem_bind(R (C::*ptmf)(FArgs...), Args&&... vs)
+ -> decltype(aux::easy_bind(gen_seq<(sizeof...(FArgs) + 1) - sizeof...(Args)>(), ptmf, std::forward<Args>(vs)...))
+{
+ // the +1s for 'this' argument
+ static_assert(sizeof...(Args) <= sizeof...(FArgs) + 1, "too many arguments to mem_bind");
+ return aux::easy_bind(gen_seq<(sizeof...(FArgs) + 1) - sizeof...(Args)>(), ptmf, std::forward<Args>(vs)...);
+}
+
+template<class T, class C, class... Args>
+auto mem_bind(T C::*ptmd, Args&&... vs)
+ -> decltype(aux::easy_bind(gen_seq<1 - sizeof...(Args)>(), ptmd, std::forward<Args>(vs)...))
+{
+ // just 'this' argument
+ static_assert(sizeof...(Args) <= 1, "too many arguments to mem_bind");
+ return aux::easy_bind(gen_seq<1 - sizeof...(Args)>(), ptmd, std::forward<Args>(vs)...);
+}
+
+
+
+/////////////////////////////////////////
+//
+// Example:
+//
+/////////////////////////////////////////
+
+class MyObject : public Listener {
+public:
+ void onMouseMoved(int x, int y)
+ {
+ std::cout << __PRETTY_FUNCTION__ << std::endl;
+ std::cout << "Mouse moved: " << x << "," << y << std::endl;
+ }
+};
+
+class MyObject2 : public Listener {
+public:
+ void mouseMoved(int x, int y)
+ {
+ std::cout << __PRETTY_FUNCTION__ << std::endl;
+ std::cout << "Mouse moved: " << x << "," << y << std::endl;
+ }
+};
+
+class Button {
+public:
+ Notifier<int, int> mouseMove; // arguments: (int x, int y)
+
+ void emulateMouseMove(int x, int y)
+ {
+ mouseMove.notify(x, y);
+ }
+};
+
+
+#define CONN(O, M) &O, mem_bind(&decltype(O)::M, O)
+#define obj_connect(SRC, SIG, TAR, SLO) SRC.SIG.connect(&TAR, mem_bind(&decltype(TAR)::SLO, TAR))
+#define fun_connect(SRC, SIG, SLO) SRC.SIG.connect(nullptr, SLO)
+
+int main()
+{
+ Button btn;
+
+ MyObject object;
+ //btn.mouseMove.connect(&object, std::bind(&MyObject::onMouseMoved, std::ref(object), _1, _2 )); // 'Vanilla' interface
+ //btn.mouseMove.connect(&object, std::bind(&decltype::onMouseMoved, std::ref(object), _1, _2 )); // Use decltype
+ //btn.mouseMove.connect(&object, mem_bind(&decltype(object)::onMouseMoved, object)); // Use clever mem_bind construct
+ btn.mouseMove.connect(CONN(object, onMouseMoved)); // Use convenience macro
+
+ obj_connect(btn, mouseMove, object, onMouseMoved);
+ fun_connect(btn, mouseMove, [](int x, int y) {
+ std::cout << __PRETTY_FUNCTION__ << std::endl;
+ std::cout << x << " x " << y << std::endl;
+ } );
+
+ MyObject2 object2;
+ btn.mouseMove.connect(CONN(object2, mouseMoved));
+
+ MyObject2* pobject2 = new MyObject2();
+ btn.mouseMove.connect(pobject2, mem_bind(&decltype(std::remove_reference(*pobject2))::mouseMoved, std::ref(*pobject2)));
+
+
+ // Now trigger the notification
+ btn.emulateMouseMove(10,10);
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#if 0
+
+#include <iostream>
+#include <functional>
+#include <vector>
+#include <map>
+#include <set>
+#include <stdio.h>
+
+template<typename T>
+class SignalBase {
+public:
+ virtual T emit(T a) { return a; }
+ T slot(SignalBase* o, T a) { return o->emit(a); }
+};
+
+template<typename T>
+class Signal : public SignalBase<T> {
+public:
+ typedef SignalBase<T>* signal_ptr_t;
+
+ static T do_emit(signal_ptr_t o1, signal_ptr_t o2, T arg)
+ {
+ std::cout << __PRETTY_FUNCTION__ << "\n";
+ // printf("%p %p\n", (void*)o1, (void*)o2);
+ return o1->slot(o2, arg);
+ }
+
+ using bound_emit_t =
+ decltype(std::bind(do_emit, signal_ptr_t(), signal_ptr_t(), std::placeholders::_1));
+
+ using mem_t = decltype()
+
+
+ void connect(Signal<T>& o)
+ {
+ connection_map[&o].emplace_back(do_emit, this, &o, std::placeholders::_1);
+
+ if (o.connectee_objects.find(this) == o.connectee_objects.end()) {
+ o.connectee_objects.insert(this);
+ }
+ }
+
+ void disconnect(Signal<T>& o)
+ {
+ if (connection_map.find(&o) != connection_map.end()) {
+ connection_map[&o].clear();
+ connection_map.erase(&o);
+ }
+
+ if (o.connectee_objects.find(this) != o.connectee_objects.end()) {
+ connectee_objects.erase(this);
+ }
+ }
+
+ void send(T a)
+ {
+ std::cout << "send: " << a << std::endl;
+ for (auto& slot : connection_map) {
+ for (auto& conn : slot.second) {
+ std::cout << conn(a) << std::endl;
+ }
+ }
+ }
+
+ virtual ~Signal()
+ {
+ // Iterate all objects to which this is connected and disconnect from them:
+ for (auto& c : connectee_objects) {
+ c->disconnect(*this);
+ }
+
+ // Iterate all objects connected to this and disconnect them:
+ for (auto& kv : connection_map) {
+ disconnect(*kv.first);
+ }
+ }
+
+ std::map<Signal<T>*, std::vector<bound_emit_t>> connection_map;
+ std::set<Signal<T>*> connectee_objects; // Signals to which this is connected
+};
+
+/////////////////////////////////////////////////////////////////////////////////////
+
+template<typename T>
+class Signal2 : public Signal<T> {
+public:
+ Signal2(T t) : t(t) {}
+ virtual T emit(T a) override { return a + t;}
+ T t;
+};
+
+int main()
+{
+
+ std::cout << std::endl << "First:" << std::endl;
+ {
+ Signal<int> o1;
+
+ {
+ Signal2<int> o2(1);
+ Signal2<int> o3(1);
+
+ o1.connect(o1);
+ o1.connect(o2);
+ o1.connect(o3);
+
+ o1.send(4);
+
+ o1.disconnect(o2);
+
+ o1.send(5);
+ } // implicit o1.disconnect(o3) in o3 destructor.
+
+ o1.send(6);
+ }
+
+ std::cout << std::endl << "Second:" << std::endl;
+ {
+ Signal<float>* o = new Signal<float>();
+ Signal<float>& o1 = *o;
+
+ {
+ Signal2<float> o2(1);
+ Signal2<float> o3(1);
+
+ o1.connect(o1);
+ o1.connect(o2);
+ o1.connect(o3);
+
+ o1.send(4.1);
+
+ delete o;
+ std::cout << std::endl << " -- post delete:" << std::endl;
+
+ o1.send(4.2);
+
+ } // implicit o1.disconnect(o3) in o3 destructor.
+ }
+
+ std::cout << std::endl << "Third:" << std::endl;
+ {
+ Signal<std::string> o1;
+
+ {
+ Signal2<std::string> o2("a");
+ Signal2<std::string> o3("b");
+
+ o1.connect(o1);
+ o1.connect(o2);
+ o1.connect(o3);
+
+ o1.send("hello");
+
+ o1.disconnect(o2);
+
+ o1.send("world");
+ } // implicit o1.disconnect(o3) in o3 destructor.
+
+ o1.send("nisse");
+ }
+
+ return 0;
+}
+
+#endif
+
+/////////////////////////////////////////////////////////
+// What I would like(tm)
+/////////////////////////////////////////////////////////
+/*
+
+class Foo {
+public:
+ Signal<int, float, std::string> changeSignal;
+
+ void worker()
+ {
+ somethingChangedSignal.emit(42, 1.234, "hello");
+ }
+};
+
+class Bar {
+public:
+ Bar(Foo &foo)
+ {
+ foo.changeSignal.connect(this, &Bar::notifyCallback);
+ }
+
+ void notifyCallback(int a, float b, std::string c)
+ {
+ // ...
+ }
+};
+
+class Bas {
+public:
+ void iWannaKnow(int a, float b, std::string c)
+ {
+ // ...
+ }
+};
+
+int main()
+{
+ Foo foo;
+ Bar bar(foo);
+ Bas bas;
+ foo.changeSignal.connect(&bas, &Bas::iWannaKnow);
+ foo.worker();
+}
+
+*/
diff --git a/plugingui/slider.cc b/plugingui/slider.cc
new file mode 100644
index 0000000..953c8e6
--- /dev/null
+++ b/plugingui/slider.cc
@@ -0,0 +1,158 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * slider.cc
+ *
+ * Sat Nov 26 18:10:22 CET 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "slider.h"
+
+#include "painter.h"
+
+#include <hugin.hpp>
+#include <stdio.h>
+
+GUI::Slider::Slider(Widget *parent)
+ : GUI::Widget(parent)
+{
+ state = up;
+
+ val = 0.0;
+ maximum = 1.0;
+ minimum = 0.0;
+
+ handler = NULL;
+ ptr = NULL;
+}
+
+void GUI::Slider::setValue(float v)
+{
+ val = v;
+ if(handler) handler(ptr);
+ repaintEvent(NULL);
+}
+
+float GUI::Slider::value()
+{
+ return val;
+}
+
+void GUI::Slider::registerClickHandler(void (*handler)(void *), void *ptr)
+{
+ this->handler = handler;
+ this->ptr = ptr;
+}
+
+void GUI::Slider::mouseMoveEvent(MouseMoveEvent *e)
+{
+ if(state == down) {
+ val = maximum / (float)width() * (float)e->x;
+
+ if(val < 0) val = 0;
+ if(val > 1) val = 1;
+
+ if(handler) handler(ptr);
+ repaintEvent(NULL);
+ }
+}
+
+void GUI::Slider::buttonEvent(ButtonEvent *e)
+{
+ if(e->direction == 1) {
+ state = down;
+ val = maximum / (float)width() * (float)e->x;
+
+ if(val < 0) val = 0;
+ if(val > 1) val = 1;
+
+ if(handler) handler(ptr);
+ repaintEvent(NULL);
+ }
+ if(e->direction == -1) {
+ state = up;
+ val = maximum / (float)width() * (float)e->x;
+
+ if(val < 0) val = 0;
+ if(val > 1) val = 1;
+
+ repaintEvent(NULL);
+ clicked();
+ if(handler) handler(ptr);
+ }
+}
+
+void GUI::Slider::repaintEvent(GUI::RepaintEvent *e)
+{
+ //DEBUG(slider, "Slider::repaintEvent (%f)\n", val);
+
+ Painter p(this);
+
+ float alpha = 0.8;
+
+ int xpos = (int)((val / maximum) * (float)(width() - 1));
+
+ if(hasKeyboardFocus()) {
+ p.setColour(Colour(0.6, alpha));
+ } else {
+ p.setColour(Colour(0.5, alpha));
+ }
+ p.drawFilledRectangle(0,0,width(),height());
+ /*
+ p.setColour(Colour(0.1, alpha));
+ p.drawRectangle(0,0,width()-1,height()-1);
+ */
+ p.setColour(Colour(1, 0, 0, alpha));
+ p.drawLine(xpos, 0, xpos, height()-1);
+ /*
+ p.setColour(Colour(0.8, alpha));
+ switch(state) {
+ case up:
+ p.drawLine(0,0,0,height()-1);
+ p.drawLine(0,0,width()-1,0);
+ break;
+ case down:
+ p.drawLine(width()-1,0, width()-1,height()-1);
+ p.drawLine(width()-1,height()-1,0, height()-1);
+ break;
+ }
+ */
+ p.setColour(Colour(0.3, alpha));
+ p.drawPoint(0,height()-1);
+ p.drawPoint(width()-1,0);
+}
+
+#ifdef TEST_SLIDER
+//Additional dependency files
+//deps:
+//Required cflags (autoconf vars may be used)
+//cflags:
+//Required link options (autoconf vars may be used)
+//libs:
+#include "test.h"
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+
+TEST_END;
+
+#endif/*TEST_SLIDER*/
diff --git a/plugingui/slider.h b/plugingui/slider.h
new file mode 100644
index 0000000..f07ccff
--- /dev/null
+++ b/plugingui/slider.h
@@ -0,0 +1,70 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * slider.h
+ *
+ * Sat Nov 26 18:10:22 CET 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_SLIDER_H__
+#define __DRUMGIZMO_SLIDER_H__
+
+#include "widget.h"
+
+namespace GUI {
+
+class Slider : public Widget {
+public:
+ Slider(Widget *parent);
+
+ bool catchMouse() { return true; }
+
+ void setValue(float value);
+ float value();
+
+ void registerClickHandler(void (*handler)(void *), void *ptr);
+
+ //protected:
+ virtual void clicked() {}
+
+ virtual void repaintEvent(RepaintEvent *e);
+ virtual void buttonEvent(ButtonEvent *e);
+ virtual void mouseMoveEvent(MouseMoveEvent *e);
+
+private:
+ typedef enum {
+ up,
+ down
+ } state_t;
+
+ float val;
+ float maximum;
+ float minimum;
+
+ state_t state;
+
+ void (*handler)(void *);
+ void *ptr;
+};
+
+};
+
+#endif/*__DRUMGIZMO_SLIDER_H__*/
diff --git a/plugingui/test.cc b/plugingui/test.cc
new file mode 100644
index 0000000..2f60d37
--- /dev/null
+++ b/plugingui/test.cc
@@ -0,0 +1,172 @@
+#include <iostream>
+#include <functional>
+#include <vector>
+#include <map>
+#include <set>
+#include <type_traits>
+#include <utility>
+
+/////////////////////////////////////////
+//
+// Listener and Notifier classes:
+//
+/////////////////////////////////////////
+
+class Listener;
+class NotifierBase {
+public:
+ virtual void disconnect(Listener* object) {}
+};
+
+class Listener {
+public:
+ virtual ~Listener()
+ {
+ for (auto signal: signals) {
+ signal->disconnect(this);
+ }
+ }
+
+ void registerNotifier(NotifierBase* signal)
+ {
+ signals.insert(signal);
+ }
+
+ void unregisterNotifier(NotifierBase* signal)
+ {
+ signals.erase(signal);
+ }
+
+ std::set<NotifierBase*> signals;
+};
+
+template<typename T, typename... Args>
+class Notifier : public NotifierBase {
+public:
+ Notifier() {}
+ ~Notifier()
+ {
+ for (auto slot: slots) {
+ slot.first->unregisterNotifier(this);
+ }
+ }
+
+ void connect(Listener* object, std::function<void(T, Args...)> slot)
+ {
+ slots[object] = slot;
+ object->registerNotifier(this);
+ }
+
+ void disconnect(Listener* object)
+ {
+ slots.erase(object);
+ }
+
+ void notify(T t, Args...args)
+ {
+ for (auto slot: slots) {
+ slot.second(t, args...);
+ }
+ }
+
+ std::map<Listener*, std::function<void(T, Args...)>> slots;
+};
+
+/////////////////////////////////////////
+//
+// Code which I don't understand but does something clever and produces a compile warning:
+//
+/////////////////////////////////////////
+
+template<unsigned... Is> struct seq{};
+template<unsigned I, unsigned... Is>
+struct gen_seq : gen_seq<I-1, I-1, Is...>{};
+template<unsigned... Is>
+struct gen_seq<0, Is...> : seq<Is...>{};
+
+template<unsigned I> struct placeholder{};
+
+namespace std{
+template<unsigned I>
+struct is_placeholder< ::placeholder<I> > : integral_constant<int, I>{};
+} // std::
+
+namespace aux{
+template<unsigned... Is, class F, class... Ts>
+auto easy_bind(seq<Is...>, F&& f, Ts&&... vs) -> decltype(std::bind(std::forward<F>(f), std::forward<Ts>(vs)..., ::placeholder<1 + Is>()...)) {
+ return std::bind(std::forward<F>(f), std::forward<Ts>(vs)..., ::placeholder<1 + Is>()...);
+}
+} // aux::
+
+template<class R, class C, class... FArgs, class... Args>
+auto mem_bind(R (C::*ptmf)(FArgs...), Args&&... vs) -> decltype(aux::easy_bind(gen_seq<(sizeof...(FArgs) + 1) - sizeof...(Args)>(), ptmf, std::forward<Args>(vs)...)) {
+ // the +1s for 'this' argument
+ static_assert(sizeof...(Args) <= sizeof...(FArgs) + 1, "too many arguments to mem_bind");
+ return aux::easy_bind(gen_seq<(sizeof...(FArgs) + 1) - sizeof...(Args)>(), ptmf, std::forward<Args>(vs)...);
+}
+
+template<class T, class C, class... Args>
+auto mem_bind(T C::*ptmd, Args&&... vs) -> decltype(aux::easy_bind(gen_seq<1 - sizeof...(Args)>(), ptmd, std::forward<Args>(vs)...)) {
+ // just 'this' argument
+ static_assert(sizeof...(Args) <= 1, "too many arguments to mem_bind");
+ return aux::easy_bind(gen_seq<1 - sizeof...(Args)>(), ptmd, std::forward<Args>(vs)...);
+}
+
+
+
+/////////////////////////////////////////
+//
+// Example:
+//
+/////////////////////////////////////////
+
+class MyObject : public Listener {
+public:
+ void onMouseMoved(int x, int y)
+ {
+ std::cout << __PRETTY_FUNCTION__ << std::endl;
+ std::cout << "Mouse moved: " << x << "," << y << std::endl;
+ }
+};
+
+class MyObject2 : public Listener {
+public:
+ void mouseMoved(int x, int y)
+ {
+ std::cout << __PRETTY_FUNCTION__ << std::endl;
+ std::cout << "Mouse moved: " << x << "," << y << std::endl;
+ }
+};
+
+class Button {
+public:
+ Notifier<int, int> mouseMove; // arguments: (int x, int y)
+
+ void emulateMouseMove(int x, int y)
+ {
+ mouseMove.notify(x, y);
+ }
+};
+
+
+#define CONN(O, M) &O, mem_bind(&decltype(O)::M, O)
+#define _connect(SRC, SIG, TAR, SLO) SRC.SIG.connect(&TAR, mem_bind(&decltype(TAR)::SLO, TAR))
+
+int main()
+{
+ Button btn;
+
+ MyObject object;
+ //btn.mouseMove.connect(&object, std::bind(&MyObject::onMouseMoved, std::ref(object), _1, _2 )); // 'Vanilla' interface
+ //btn.mouseMove.connect(&object, std::bind(&decltype::onMouseMoved, std::ref(object), _1, _2 )); // Use decltype
+ //btn.mouseMove.connect(&object, mem_bind(&decltype(object)::onMouseMoved, object)); // Use clever mem_bind construct
+ btn.mouseMove.connect(CONN(object, onMouseMoved)); // Use convenience macro
+
+ _connect(btn, mouseMove, object, onMouseMoved);
+
+ MyObject2 object2;
+ btn.mouseMove.connect(CONN(object2, mouseMoved));
+
+ // Now trigger the notification
+ btn.emulateMouseMove(10,10);
+}
diff --git a/plugingui/tester.cc b/plugingui/tester.cc
new file mode 100644
index 0000000..a6dfb6d
--- /dev/null
+++ b/plugingui/tester.cc
@@ -0,0 +1,50 @@
+#include <functional>
+#include <type_traits>
+#include <utility>
+
+template <std::size_t... Is>
+struct indices {};
+
+template <std::size_t N, std::size_t... Is>
+struct build_indices
+ : build_indices<N-1, N-1, Is...> {};
+
+template <std::size_t... Is>
+struct build_indices<0, Is...> : indices<Is...> {};
+
+template<int I> struct placeholder{};
+
+namespace std{
+template<int I>
+struct is_placeholder< ::placeholder<I>> : std::integral_constant<int, I>{};
+} // std::
+namespace detail{
+ template<std::size_t... Is, class Ret, class Fn, class... MArgs, class... Args>
+ auto my_bind(indices<Is...>, Ret (Fn::*f)(MArgs...), Fn *i, Args&&... args)
+ -> decltype(std::bind(f, i, std::forward<Args>(args)..., placeholder<1 + Is>{}...)){
+ return std::bind(f, i, std::forward<Args>(args)..., placeholder<1 + Is>{}...);
+ }
+}
+
+template<class Ret, class... FArgs, class Fn, class... MArgs, class... Args>
+auto my_bind(std::function<Ret(FArgs...)>, Ret (Fn::*f)(MArgs...), Fn *i, Args&&... args)
+ -> decltype(detail::my_bind(build_indices<sizeof...(FArgs) - sizeof...(Args)>{}, f, i, std::forward<Args>(args)...)){
+
+ return detail::my_bind(build_indices<sizeof...(FArgs) - sizeof...(Args)>{}, f, i, std::forward<Args>(args)...);
+}
+
+
+#include <iostream>
+struct tmp{
+ void testt(int var1, int var2){
+ std::cout << var1 << " " << var2 << std::endl;
+ }
+};
+
+int main(){
+
+ tmp TMP;
+ auto f3 = my_bind(std::function<void(int, int)>(), &tmp::testt, &TMP);
+ f3(22, 23);
+
+}
diff --git a/plugingui/verticalline.cc b/plugingui/verticalline.cc
new file mode 100644
index 0000000..53d82a6
--- /dev/null
+++ b/plugingui/verticalline.cc
@@ -0,0 +1,41 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * verticalline.cc
+ *
+ * Sat Apr 6 12:59:44 CEST 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "verticalline.h"
+
+#include "painter.h"
+
+GUI::VerticalLine::VerticalLine(GUI::Widget *parent)
+ : Widget(parent), vline(":vertline.png")
+{
+}
+
+void GUI::VerticalLine::repaintEvent(RepaintEvent *e)
+{
+ (void)e;
+ GUI::Painter p(this);
+ p.drawImageStretched(0, 0, &vline, width(), height());
+}
diff --git a/plugingui/verticalline.h b/plugingui/verticalline.h
new file mode 100644
index 0000000..7c1bc27
--- /dev/null
+++ b/plugingui/verticalline.h
@@ -0,0 +1,48 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * verticalline.h
+ *
+ * Sat Apr 6 12:59:43 CEST 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_VERTICALLINE_H__
+#define __DRUMGIZMO_VERTICALLINE_H__
+
+#include "widget.h"
+#include "image.h"
+
+namespace GUI {
+
+class VerticalLine : public Widget {
+public:
+ VerticalLine(Widget *parent);
+
+ //protected:
+ virtual void repaintEvent(RepaintEvent *e);
+
+private:
+ Image vline;
+};
+
+};
+
+#endif/*__DRUMGIZMO_VERTICALLINE_H__*/
diff --git a/plugingui/widget.cc b/plugingui/widget.cc
new file mode 100644
index 0000000..0919e22
--- /dev/null
+++ b/plugingui/widget.cc
@@ -0,0 +1,189 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * widget.cc
+ *
+ * Sun Oct 9 13:01:44 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "widget.h"
+
+#include "painter.h"
+#include "window.h"
+
+#include <stdio.h>
+
+namespace GUI {
+
+Widget::Widget(Widget *parent)
+ : pixbuf(1, 1)
+{
+ _width = _height = 10;
+
+ this->parent = parent;
+ if(parent) {
+ parent->addChild(this);
+ _window = parent->window();
+ }
+ _width = _height = 0;
+ _visible = true;
+}
+
+Widget::~Widget()
+{
+ if(parent) parent->removeChild(this);
+}
+
+void Widget::show()
+{
+ setVisible(true);
+}
+
+void Widget::hide()
+{
+ setVisible(false);
+}
+
+void Widget::setVisible(bool v)
+{
+ _visible = v;
+ repaintEvent(NULL);
+}
+
+bool Widget::visible()
+{
+ return _visible;
+}
+
+void Widget::addChild(Widget *widget)
+{
+ children.push_back(widget);
+}
+
+void Widget::removeChild(Widget *widget)
+{
+ std::vector<Widget *>::iterator i = children.begin();
+ while(i != children.end()) {
+ if(*i == widget) {
+ children.erase(i);
+ return;
+ }
+ i++;
+ }
+}
+
+void Widget::resize(int width, int height)
+{
+ if(width < 1 || height < 1) return;
+ _width = width;
+ _height = height;
+ pixbuf.realloc(width, height);
+}
+
+void Widget::move(size_t x, size_t y)
+{
+ _x = x;
+ _y = y;
+}
+
+size_t Widget::x() { return _x; }
+size_t Widget::y() { return _y; }
+size_t Widget::width() { return _width; }
+size_t Widget::height() { return _height; }
+
+size_t Widget::windowX()
+{
+ size_t window_x = x();
+ if(parent) window_x += parent->windowX();
+ return window_x;
+}
+
+size_t Widget::windowY()
+{
+ size_t window_y = y();
+ if(parent) window_y += parent->windowY();
+ return window_y;
+}
+
+Widget *Widget::find(size_t x, size_t y)
+{
+ std::vector<Widget*>::reverse_iterator i = children.rbegin();
+ while(i != children.rend()) {
+ Widget *w = *i;
+ if(w->visible()) {
+ if(w->x() <= x && (w->x() + w->width()) >= x &&
+ w->y() <= y && w->y() + w->height() >= y)
+ return w->find(x - w->x(), y - w->y());
+ }
+ i++;
+ }
+
+ if(x > width() || x < 0 || y > height() || y < 0) return NULL;
+ return this;
+}
+
+Window *Widget::window()
+{
+ return _window;
+}
+
+void Widget::repaint_r(RepaintEvent *e)
+{
+ Painter p(this); // make sure pixbuf refcount is incremented.
+
+ repaintEvent(e);
+
+ std::vector<Widget*>::iterator i = children.begin();
+ while(i != children.end()) {
+ Widget *w = *i;
+ w->repaint_r(e);
+ i++;
+ }
+}
+
+std::vector<PixelBufferAlpha *> Widget::getPixelBuffers()
+{
+ std::vector<PixelBufferAlpha *> pbs;
+
+ pixbuf.x = windowX();
+ pixbuf.y = windowY();
+
+ pbs.push_back(&pixbuf);
+
+ std::vector<Widget*>::iterator i = children.begin();
+ while(i != children.end()) {
+ Widget *w = *i;
+ if(w->visible()) {
+ std::vector<PixelBufferAlpha *> pbs0 = w->getPixelBuffers();
+ pbs.insert(pbs.end(), pbs0.begin(), pbs0.end());
+ }
+ i++;
+ }
+
+ return pbs;
+}
+
+bool Widget::hasKeyboardFocus()
+{
+ return window()->keyboardFocus() == this;
+}
+
+} // GUI::
diff --git a/plugingui/widget.h b/plugingui/widget.h
new file mode 100644
index 0000000..13725f0
--- /dev/null
+++ b/plugingui/widget.h
@@ -0,0 +1,97 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * widget.h
+ *
+ * Sun Oct 9 13:01:44 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#pragma once
+
+#include "guievent.h"
+#include "pixelbuffer.h"
+#include "notifier.h"
+
+#include <vector>
+
+namespace GUI {
+
+class Window;
+
+class Widget : public Listener {
+public:
+ Widget(Widget *parent);
+ virtual ~Widget();
+
+ virtual void show();
+ virtual void hide();
+
+ virtual void resize(int width, int height);
+ virtual void move(size_t x, size_t y);
+
+ virtual size_t x();
+ virtual size_t y();
+ virtual size_t windowX();
+ virtual size_t windowY();
+ virtual size_t width();
+ virtual size_t height();
+
+ virtual bool isFocusable() { return false; }
+ virtual bool catchMouse() { return false; }
+
+ void addChild(Widget *widget);
+ void removeChild(Widget *widget);
+
+ virtual void repaintEvent(RepaintEvent *e) {}
+ virtual void mouseMoveEvent(MouseMoveEvent *e) {}
+ virtual void buttonEvent(ButtonEvent *e) {}
+ virtual void scrollEvent(ScrollEvent *e) {}
+ virtual void keyEvent(KeyEvent *e) {}
+
+ virtual void mouseLeaveEvent() {}
+ virtual void mouseEnterEvent() {}
+
+ Widget *find(size_t x, size_t y);
+
+ virtual Window *window();
+
+ void repaint_r(RepaintEvent *e);
+
+ PixelBufferAlpha pixbuf;
+ std::vector<PixelBufferAlpha *> getPixelBuffers();
+
+ bool hasKeyboardFocus();
+
+ Widget *parent;
+
+ bool visible();
+ void setVisible(bool visible);
+
+protected:
+ std::vector<Widget*> children;
+ Window *_window;
+ size_t _x, _y, _width, _height;
+
+private:
+ bool _visible;
+};
+
+} // GUI::
diff --git a/plugingui/window.cc b/plugingui/window.cc
new file mode 100644
index 0000000..8337533
--- /dev/null
+++ b/plugingui/window.cc
@@ -0,0 +1,245 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * window.cc
+ *
+ * Sun Oct 9 13:11:53 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "window.h"
+
+#include "painter.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <string.h>
+#include <hugin.hpp>
+
+#ifndef PUGL
+#ifdef X11
+#include "nativewindow_x11.h"
+#endif/*X11*/
+#ifdef WIN32
+#include "nativewindow_win32.h"
+#endif/*WIN32*/
+#else
+#include "nativewindow_pugl.h"
+#endif
+
+GUI::Window::Window()
+ : Widget(NULL), wpixbuf(100, 100), back(":bg.png"), logo(":logo.png")
+{
+ _x = _y = 100;
+ _width = wpixbuf.width;
+ _height = wpixbuf.height;
+
+ refcount = 0;
+ max_refcount = 0;
+ _keyboardFocus = this;
+ _buttonDownFocus = NULL;
+ _mouseFocus = NULL;
+
+#ifndef PUGL
+#ifdef X11
+ native = new NativeWindowX11(this);
+#endif/*X11*/
+#ifdef WIN32
+ native = new NativeWindowWin32(this);
+#endif/*WIN32*/
+#else/*Use pugl*/
+ native = new NativeWindowPugl(this);
+#endif
+
+ eventhandler = new GUI::EventHandler(native, this);
+}
+
+GUI::Window::~Window()
+{
+ delete native;
+ delete eventhandler;
+}
+
+GUI::EventHandler *GUI::Window::eventHandler()
+{
+ return eventhandler;
+}
+
+void GUI::Window::setCaption(std::string caption)
+{
+ native->setCaption(caption);
+}
+
+void GUI::Window::repaintEvent(GUI::RepaintEvent *e)
+{
+ if(!visible()) return;
+
+ Painter p(this);
+ p.drawImageStretched(0,0, &back, width(), height());
+ p.drawImage(width() - logo.width(),
+ height() - logo.height(), &logo);
+}
+
+void GUI::Window::setFixedSize(int w, int h)
+{
+ native->setFixedSize(w, h);
+ resize(w,h);
+}
+
+void GUI::Window::resize(int width, int height)
+{
+ if(width < 1 || height < 1) return;
+
+ // This needs to be done on all platoforms when setFixedSize is introduced.
+ //#ifdef WIN32
+ // Fix to force buffer size reallocation
+ // FIXME: This should've been done indirectly through a WM_SIZE message in the
+ // EventHandler...
+ resized(width, height);
+ //#endif
+
+ Widget::resize(width, height);
+ native->resize(width, height);
+}
+
+void GUI::Window::move(size_t x, size_t y)
+{
+ native->move(x, y);
+
+ // Make sure widget corrds are updated.
+ Widget::move(x, y);
+}
+
+size_t GUI::Window::x() { return _x; }
+size_t GUI::Window::y() { return _y; }
+size_t GUI::Window::width() { return _width; }
+size_t GUI::Window::height() { return _height; }
+size_t GUI::Window::windowX() { return 0; }
+size_t GUI::Window::windowY() { return 0; }
+
+void GUI::Window::show()
+{
+ repaint_r(NULL);
+ native->show();
+}
+
+void GUI::Window::hide()
+{
+ native->hide();
+}
+
+GUI::Window *GUI::Window::window()
+{
+ return this;
+}
+
+void GUI::Window::beginPaint()
+{
+ refcount++;
+ if(refcount > max_refcount) max_refcount = refcount;
+}
+
+void GUI::Window::endPaint()
+{
+ if(refcount) refcount--;
+
+ if(!refcount) {
+ if(max_refcount > 1) { // Did we go deep enough for a buffer update?
+ updateBuffer();
+ redraw();
+ }
+ max_refcount = 0;
+ }
+}
+
+void GUI::Window::updateBuffer()
+{
+ DEBUG(window, "Updating buffer\n");
+ memset(wpixbuf.buf, 0, wpixbuf.width * wpixbuf.height * 3);
+
+ std::vector<PixelBufferAlpha *> pl = getPixelBuffers();
+ std::vector<PixelBufferAlpha *>::iterator pli = pl.begin();
+ while(pli != pl.end()) {
+ PixelBufferAlpha *pb = *pli;
+ for(size_t x = 0; x < pb->width; x++) {
+ for(size_t y = 0; y < pb->height; y++) {
+ unsigned char r,g,b,a;
+ pb->pixel(x,y,&r,&g,&b,&a);
+ wpixbuf.setPixel(x + pb->x, y + pb->y, r, g, b, a);
+ }
+ }
+ pli++;
+ }
+ native->handleBuffer();
+}
+
+void GUI::Window::resized(size_t w, size_t h)
+{
+ if(_width == w && _height == h) return;
+
+ _width = w;
+ _height = h;
+ wpixbuf.realloc(w, h);
+ updateBuffer();
+
+ pixbuf.realloc(w, h);
+ repaintEvent(NULL);
+}
+
+void GUI::Window::redraw()
+{
+ native->redraw();
+}
+
+GUI::Widget *GUI::Window::keyboardFocus()
+{
+ return _keyboardFocus;
+}
+
+void GUI::Window::setKeyboardFocus(GUI::Widget *widget)
+{
+ GUI::Widget *old_focus = _keyboardFocus;
+ _keyboardFocus = widget;
+
+ if(old_focus) old_focus->repaintEvent(NULL);
+ if(_keyboardFocus) _keyboardFocus->repaintEvent(NULL);
+}
+
+GUI::Widget *GUI::Window::buttonDownFocus()
+{
+ return _buttonDownFocus;
+}
+
+void GUI::Window::setButtonDownFocus(GUI::Widget *widget)
+{
+ _buttonDownFocus = widget;
+ native->grabMouse(widget != NULL);
+}
+
+GUI::Widget *GUI::Window::mouseFocus()
+{
+ return _mouseFocus;
+}
+
+void GUI::Window::setMouseFocus(GUI::Widget *widget)
+{
+ _mouseFocus = widget;
+}
diff --git a/plugingui/window.h b/plugingui/window.h
new file mode 100644
index 0000000..f8deef0
--- /dev/null
+++ b/plugingui/window.h
@@ -0,0 +1,105 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * window.h
+ *
+ * Sun Oct 9 13:11:52 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_WINDOW_H__
+#define __DRUMGIZMO_WINDOW_H__
+
+#include "widget.h"
+
+#include "pixelbuffer.h"
+#include "nativewindow.h"
+#include "image.h"
+#include "eventhandler.h"
+
+namespace GUI {
+
+class Window : public Widget {
+public:
+ Window();
+ ~Window();
+
+ void show();
+ void hide();
+
+ void setFixedSize(int width, int height);
+ void resize(int width, int height);
+ void move(size_t x, size_t y);
+
+ size_t x();
+ size_t y();
+ size_t windowX();
+ size_t windowY();
+ size_t width();
+ size_t height();
+
+ void setCaption(std::string caption);
+
+ void addChild(Widget *widget);
+
+ void repaintEvent(GUI::RepaintEvent *e);
+
+ void beginPaint();
+ void endPaint();
+
+ Window *window();
+
+ EventHandler *eventHandler();
+
+ // handlers
+ virtual void redraw();
+ void resized(size_t w, size_t h);
+
+ Widget *keyboardFocus();
+ void setKeyboardFocus(Widget *widget);
+
+ Widget *buttonDownFocus();
+ void setButtonDownFocus(Widget *widget);
+
+ Widget *mouseFocus();
+ void setMouseFocus(Widget *widget);
+
+ PixelBuffer wpixbuf;
+ void updateBuffer();
+
+protected:
+ size_t refcount;
+
+ Widget *_keyboardFocus;
+ Widget *_buttonDownFocus;
+ Widget *_mouseFocus;
+
+ NativeWindow *native;
+ EventHandler *eventhandler;
+
+ Image back;
+ Image logo;
+
+ size_t max_refcount;
+};
+
+};
+
+#endif/*__DRUMGIZMO_WINDOW_H__*/
diff --git a/src/Makefile.am b/src/Makefile.am
new file mode 100644
index 0000000..038bcce
--- /dev/null
+++ b/src/Makefile.am
@@ -0,0 +1,44 @@
+include $(top_srcdir)/plugingui/Makefile.am.plugingui
+
+plugindir = $(libdir)/lv2/camsync.lv2
+
+plugin_LTLIBRARIES = camsync.la
+
+plugin_DATA = manifest.ttl camsync.ttl
+
+EXTRA_DIST = \
+ $(plugin_DATA) \
+ input_lv2.h \
+ output_lv2.h \
+ lv2_event.h \
+ lv2_gui.h \
+ lv2_instance.h
+
+camsync_la_CXXFLAGS = -I$(top_srcdir)/src -I$(top_srcdir)/plugingui \
+ -I$(top_srcdir)/include $(SNDFILE_CXXFLAGS) \
+ $(PTHREAD_CFLAGS) $(EXPAT_CFLAGS) $(LV2_CFLAGS) \
+ $(PLUGIN_GUI_CFLAGS) $(SSEFLAGS) $(ZITA_CPPFLAGS) \
+ -DUSE_THREAD $(SAMPLERATE_CFLAGS)
+
+camsync_la_SOURCES = \
+ configfile.cc \
+ configuration.cc \
+ configparser.cc \
+ events.cc \
+ messagehandler.cc \
+ messagereceiver.cc \
+ mutex.cc \
+ path.cc \
+ semaphore.cc \
+ saxparser.cc \
+ thread.cc \
+ versionstr.cc
+ $(PLUGIN_GUI_SOURCES) \
+ lv2.cc \
+ lv2_gui.cc \
+ input_lv2.cc \
+ output_lv2.cc
+
+camsync_la_LDFLAGS = -module -avoid-version
+camsync_la_LIBADD = $(LV2_LIBS) $(PLUGIN_GUI_LIBS) \
+ $(ZITA_LIBS) $(SNDFILE_LIBS) $(EXPAT_LIBS) $(SAMPLERATE_LIBS)
diff --git a/src/camsync.ttl b/src/camsync.ttl
new file mode 100644
index 0000000..23345f3
--- /dev/null
+++ b/src/camsync.ttl
@@ -0,0 +1,144 @@
+# LV2 DrumGizmo Plugin
+# Copyright 2011 Bent Bisballe Nyeng <deva@aasimon.org>
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+@prefix doap: <http://usefulinc.com/ns/doap#> .
+@prefix foaf: <http://xmlns.com/foaf/0.1/> .
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix atom: <http://lv2plug.in/ns/ext/atom#> .
+@prefix uiext: <http://lv2plug.in/ns/extensions/ui#> .
+@prefix state: <http://lv2plug.in/ns/ext/state#> .
+
+<http://drumgizmo.org/lv2-gui>
+ a uiext:external ;
+ uiext:binary <drumgizmo.so> .
+
+<http://drumgizmo.org/lv2>
+ a lv2:InstrumentPlugin ;
+ doap:name "DrumGizmo" ;
+ doap:maintainer [
+ foaf:name "DrumGizmo.org";
+ foaf:homepage <http://www.drumgizmo.org> ;
+ ] ;
+ doap:license <http://usefulinc.com/doap/licenses/gpl> ;
+ uiext:ui <http://drumgizmo.org/lv2-gui> ;
+ doap:license <http://opensource.org/licenses/gpl-3.0> ;
+ lv2:optionalFeature <http://lv2plug.in/ns/ext/uri-map> ;
+ lv2:optionalFeature <http://lv2plug.in/ns/ext/event> ;
+ lv2:extensionData state:interface ;
+lv2:port [
+ a atom:AtomPort ,
+ lv2:InputPort;
+ atom:bufferType atom:Sequence ;
+ atom:supports <http://lv2plug.in/ns/ext/midi#MidiEvent> ;
+ lv2:index 0 ;
+ lv2:symbol "control" ;
+ lv2:name "Control"
+ ] , [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 1 ;
+ lv2:symbol "out1" ;
+ lv2:name "Out1"
+ ], [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 2 ;
+ lv2:symbol "out2" ;
+ lv2:name "Out2"
+ ], [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 3 ;
+ lv2:symbol "out3" ;
+ lv2:name "Out3"
+ ], [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 4 ;
+ lv2:symbol "out4" ;
+ lv2:name "Out4"
+ ], [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 5 ;
+ lv2:symbol "out5" ;
+ lv2:name "Out5"
+ ], [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 6 ;
+ lv2:symbol "out6" ;
+ lv2:name "Out6"
+ ], [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 7 ;
+ lv2:symbol "out7" ;
+ lv2:name "Out7"
+ ], [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 8 ;
+ lv2:symbol "out8" ;
+ lv2:name "Out8"
+ ], [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 9 ;
+ lv2:symbol "out9" ;
+ lv2:name "Out9"
+ ], [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 10 ;
+ lv2:symbol "out10" ;
+ lv2:name "Out10"
+ ], [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 11 ;
+ lv2:symbol "out11" ;
+ lv2:name "Out11"
+ ], [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 12 ;
+ lv2:symbol "out12" ;
+ lv2:name "Out12"
+ ], [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 13 ;
+ lv2:symbol "out13" ;
+ lv2:name "Out13"
+ ], [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 14 ;
+ lv2:symbol "out14" ;
+ lv2:name "Out14"
+ ], [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 15 ;
+ lv2:symbol "out15" ;
+ lv2:name "Out15"
+ ], [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 16 ;
+ lv2:symbol "out16" ;
+ lv2:name "Out16"
+ ] .
diff --git a/src/configfile.cc b/src/configfile.cc
new file mode 100644
index 0000000..6b0d14f
--- /dev/null
+++ b/src/configfile.cc
@@ -0,0 +1,347 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * configfile.cc
+ *
+ * Thu May 14 14:51:39 CEST 2015
+ * Copyright 2015 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "configfile.h"
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#ifdef WIN32
+#include <direct.h>
+#include <windows.h>
+#include <Shlobj.h>
+#include <Shlwapi.h>
+#else
+#endif
+
+#include <hugin.hpp>
+
+#ifdef WIN32
+ #define SEP "\\"
+#else
+ #define SEP "/"
+#endif
+
+#define CONFIGDIRNAME ".drumgizmo"
+
+/**
+ * Return the path containing the config files.
+ */
+static std::string configPath()
+{
+#ifdef WIN32
+ std::string configpath;
+ TCHAR szPath[256];
+ if(SUCCEEDED(SHGetFolderPath(NULL, CSIDL_APPDATA | CSIDL_FLAG_CREATE,
+ NULL, 0, szPath))) {
+ configpath = szPath;
+ }
+#else
+ std::string configpath = strdup(getenv("HOME"));
+#endif
+ configpath += SEP;
+ configpath += CONFIGDIRNAME;
+
+ return configpath;
+}
+
+/**
+ * Calling this makes sure that the config path exists
+ */
+static bool createConfigPath()
+{
+ std::string configpath = configPath();
+
+ struct stat st;
+ if(stat(configpath.c_str(), &st) == 0) {
+ DEBUG(configfile, "No configuration exists, creating directory '%s'\n",
+ configpath.c_str());
+#ifdef WIN32
+ if(mkdir(configpath.c_str()) < 0) {
+#else
+ if(mkdir(configpath.c_str(), 0755) < 0) {
+#endif
+ DEBUG(configfile, "Could not create config directory\n");
+ }
+
+ return false;
+ }
+
+ return true;
+}
+
+ConfigFile::ConfigFile(std::string filename)
+ : filename(filename)
+ , fp(NULL)
+{
+}
+
+ConfigFile::~ConfigFile()
+{
+}
+
+bool ConfigFile::load()
+{
+ DEBUG(configfile, "Loading config file...\n");
+ if(!open("r")) {
+ return false;
+ }
+
+ values.clear();
+
+ std::string line;
+ while(true) {
+ line = readLine();
+
+ if(line == "") break;
+
+ if(!parseLine(line)) {
+ return false;
+ }
+ }
+
+ close();
+
+ return true;
+}
+
+bool ConfigFile::save()
+{
+ DEBUG(configfile, "Saving configuration...\n");
+
+ createConfigPath();
+
+ if(!open("w")) {
+ return false;
+ }
+
+ std::map<std::string, std::string>::iterator v = values.begin();
+ for(; v != values.end(); ++v) {
+ fprintf(fp, "%s:%s\n", v->first.c_str(), v->second.c_str());
+ }
+
+ close();
+
+ return true;
+}
+
+std::string ConfigFile::getValue(const std::string& key)
+{
+ if(values.find(key) != values.end()) {
+ return values[key];
+ }
+
+ return "";
+}
+
+void ConfigFile::setValue(const std::string& key, const std::string& value)
+{
+ values[key] = value;
+}
+
+bool ConfigFile::open(std::string mode)
+{
+ if(fp) close();
+
+ std::string configpath = configPath();
+
+ std::string configfile = configpath;
+ configfile += SEP;
+ configfile += filename;
+
+ DEBUG(configfile, "Opening config file '%s'\n", configfile.c_str());
+ fp = fopen(configfile.c_str(), mode.c_str());
+
+ if(!fp) return false;
+
+ return true;
+}
+
+void ConfigFile::close()
+{
+ fclose(fp);
+ fp = NULL;
+}
+
+std::string ConfigFile::readLine()
+{
+ if(!fp) return "";
+
+ std::string line;
+
+ char buf[1024];
+ while(!feof(fp)) {
+ char *s = fgets(buf, sizeof(buf), fp);
+ if(s) {
+ line += buf;
+ if(buf[strlen(buf) - 1] == '\n') break;
+ }
+ }
+
+ return line;
+}
+
+bool ConfigFile::parseLine(const std::string& line)
+{
+ std::string key;
+ std::string value;
+ enum {
+ before_key,
+ in_key,
+ after_key,
+ before_value,
+ in_value,
+ in_value_single_quoted,
+ in_value_double_quoted,
+ after_value,
+ } state = before_key;
+
+ for(std::size_t p = 0; p < line.size(); ++p) {
+ switch(state) {
+ case before_key:
+ if(line[p] == '#') {
+ // Comment: Ignore line.
+ p = line.size();
+ continue;
+ }
+ if(std::isspace(line[p])) {
+ continue;
+ }
+ key += line[p];
+ state = in_key;
+ break;
+
+ case in_key:
+ if(std::isspace(line[p])) {
+ state = after_key;
+ continue;
+ }
+ if(line[p] == ':' || line[p] == '=') {
+ state = before_value;
+ continue;
+ }
+ key += line[p];
+ break;
+
+ case after_key:
+ if(std::isspace(line[p])) {
+ continue;
+ }
+ if(line[p] == ':' || line[p] == '=') {
+ state = before_value;
+ continue;
+ }
+ ERR(configfile, "Bad symbol."
+ " Expecting only whitespace or key/value seperator: '%s'",
+ line.c_str());
+ return false;
+
+ case before_value:
+ if(std::isspace(line[p])) {
+ continue;
+ }
+ if(line[p] == '\'') {
+ state = in_value_single_quoted;
+ continue;
+ }
+ if(line[p] == '"') {
+ state = in_value_double_quoted;
+ continue;
+ }
+ value += line[p];
+ state = in_value;
+ break;
+
+ case in_value:
+ if(std::isspace(line[p])) {
+ state = after_value;
+ continue;
+ }
+ if(line[p] == '#') {
+ // Comment: Ignore the rest of the line.
+ p = line.size();
+ state = after_value;
+ continue;
+ }
+ value += line[p];
+ break;
+
+ case in_value_single_quoted:
+ if(line[p] == '\'') {
+ state = after_value;
+ continue;
+ }
+ value += line[p];
+ break;
+
+ case in_value_double_quoted:
+ if(line[p] == '"') {
+ state = after_value;
+ continue;
+ }
+ value += line[p];
+ break;
+
+ case after_value:
+ if(std::isspace(line[p])) {
+ continue;
+ }
+ if(line[p] == '#') {
+ // Comment: Ignore the rest of the line.
+ p = line.size();
+ continue;
+ }
+ ERR(configfile, "Bad symbol."
+ " Expecting only whitespace or key/value seperator: '%s'",
+ line.c_str());
+ return false;
+ }
+ }
+
+ if(state == before_key) {
+ // Line did not contain any data (empty or comment)
+ return true;
+ }
+
+ // If state == in_value_XXX_quoted here, the string was not terminated.
+ if(state != after_value && state != in_value) {
+ ERR(configfile,"Malformed line: '%s'", line.c_str());
+ return false;
+ }
+
+ DEBUG(configfile, "key['%s'] value['%s']\n", key.c_str(), value.c_str());
+
+ if(key != "") {
+ values[key] = value;
+ }
+
+ return true;
+}
diff --git a/src/configfile.h b/src/configfile.h
new file mode 100644
index 0000000..a6c50bd
--- /dev/null
+++ b/src/configfile.h
@@ -0,0 +1,57 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * configfile.h
+ *
+ * Thu May 14 14:51:38 CEST 2015
+ * Copyright 2015 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_CONFIGFILE_H__
+#define __DRUMGIZMO_CONFIGFILE_H__
+
+#include <string>
+#include <map>
+#include <stdio.h>
+
+class ConfigFile {
+public:
+ ConfigFile(std::string filename);
+ virtual ~ConfigFile();
+
+ virtual bool load();
+ virtual bool save();
+
+ virtual std::string getValue(const std::string& key);
+ virtual void setValue(const std::string& key, const std::string& value);
+
+protected:
+ std::map<std::string, std::string> values;
+ std::string filename;
+
+ virtual bool open(std::string mode);
+ void close();
+ std::string readLine();
+ bool parseLine(const std::string& line);
+
+ FILE* fp;
+};
+
+#endif/*__DRUMGIZMO_CONFIGFILE_H__*/
diff --git a/src/configparser.cc b/src/configparser.cc
new file mode 100644
index 0000000..96e701b
--- /dev/null
+++ b/src/configparser.cc
@@ -0,0 +1,70 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * configparser.cc
+ *
+ * Sat Jun 29 21:55:02 CEST 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "configparser.h"
+
+#include <hugin.hpp>
+
+#include "saxparser.h"
+
+ConfigParser::ConfigParser()
+{
+ str = NULL;
+}
+
+void ConfigParser::characterData(std::string &data)
+{
+ if(str) str->append(data);
+}
+
+void ConfigParser::startTag(std::string name, attr_t attr)
+{
+ if(name == "value" && attr.find("name") != attr.end()) {
+ values[attr["name"]] = "";
+ str = &values[attr["name"]];
+ }
+}
+
+void ConfigParser::endTag(std::string name)
+{
+ if(name == "value") str = NULL;
+}
+
+std::string ConfigParser::value(std::string name, std::string def)
+{
+ if(values.find(name) == values.end()) return def;
+ return values[name];
+}
+
+void ConfigParser::parseError(char *buf, size_t len, std::string error,
+ int lineno)
+{
+ std::string buffer;
+ buffer.append(buf, len);
+ ERR(configparser, "sax parser error '%s' at line %d. "
+ "Buffer: [%d bytes]<%s>\n",
+ error.c_str(), lineno, (int)len, buffer.c_str());
+}
diff --git a/src/configparser.h b/src/configparser.h
new file mode 100644
index 0000000..e67babd
--- /dev/null
+++ b/src/configparser.h
@@ -0,0 +1,49 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * configparser.h
+ *
+ * Sat Jun 29 21:55:02 CEST 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_CONFIGPARSER_H__
+#define __DRUMGIZMO_CONFIGPARSER_H__
+
+#include <map>
+
+#include "saxparser.h"
+
+class ConfigParser : public SAXParser {
+public:
+ ConfigParser();
+
+ void characterData(std::string &data);
+ void startTag(std::string name, attr_t attr);
+ void endTag(std::string name);
+ std::string value(std::string name, std::string def = "");
+ void parseError(char *buf, size_t len, std::string error, int lineno);
+
+private:
+ std::map<std::string, std::string> values;
+ std::string *str;
+};
+
+#endif/*__DRUMGIZMO_CONFIGPARSER_H__*/
diff --git a/src/configuration.cc b/src/configuration.cc
new file mode 100644
index 0000000..5c733ee
--- /dev/null
+++ b/src/configuration.cc
@@ -0,0 +1,38 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * configuration.cc
+ *
+ * Sat Oct 8 14:37:14 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "configuration.h"
+
+bool Conf::enable_velocity_modifier = true;
+float Conf::velocity_modifier_falloff = 0.5;
+float Conf::velocity_modifier_weight = 0.25;
+
+bool Conf::enable_velocity_randomiser = false;
+float Conf::velocity_randomiser_weight = 0.1;
+
+int Conf::samplerate = 44100;
+
+bool Conf::enable_resampling = true;
diff --git a/src/configuration.h b/src/configuration.h
new file mode 100644
index 0000000..b8be49f
--- /dev/null
+++ b/src/configuration.h
@@ -0,0 +1,44 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * configuration.h
+ *
+ * Sat Oct 8 14:37:13 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_CONFIGURATION_H__
+#define __DRUMGIZMO_CONFIGURATION_H__
+
+namespace Conf {
+ extern bool enable_velocity_modifier;
+ extern float velocity_modifier_falloff;
+ extern float velocity_modifier_weight;
+
+ extern bool enable_velocity_randomiser;
+ extern float velocity_randomiser_weight;
+
+ extern int samplerate;
+
+ extern bool enable_resampling;
+};
+
+
+#endif/*__DRUMGIZMO_CONFIGURATION_H__*/
diff --git a/src/input_lv2.cc b/src/input_lv2.cc
new file mode 100644
index 0000000..e70d293
--- /dev/null
+++ b/src/input_lv2.cc
@@ -0,0 +1,117 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * input_lv2.cc
+ *
+ * Wed Jul 13 14:27:02 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "input_lv2.h"
+
+#include "lv2/lv2plug.in/ns/ext/atom/util.h"
+
+#include <midimapparser.h>
+
+#include <hugin.hpp>
+
+InputLV2::InputLV2()
+{
+ eventPort = NULL;
+}
+
+InputLV2::~InputLV2()
+{
+}
+
+bool InputLV2::init(Instruments &i)
+{
+ instruments = &i;
+ return true;
+}
+
+void InputLV2::setParm(std::string parm, std::string value)
+{
+}
+
+bool InputLV2::start()
+{
+ return true;
+}
+
+void InputLV2::stop()
+{
+}
+
+void InputLV2::pre()
+{
+}
+
+event_t *InputLV2::run(size_t pos, size_t len, size_t *nevents)
+{
+ if(eventPort == NULL) {
+ *nevents = 0;
+ return NULL;
+ }
+
+ event_t *list;
+ size_t listsize;
+
+ list = (event_t *)malloc(sizeof(event_t) * 1000);
+ listsize = 0;
+
+ LV2_Atom_Event* ev = lv2_atom_sequence_begin(&eventPort->body);
+
+ while(!lv2_atom_sequence_is_end(&eventPort->body,
+ eventPort->atom.size,
+ ev)) {
+ uint8_t* const data = (uint8_t*)(ev+1);
+
+ if ((data[0] & 0xF0) == 0x80) { // note off
+ int key = data[1];
+
+ DEBUG(lv2input, "Event (off) key:%d\n", key);
+ }
+
+ if ((data[0] & 0xF0) == 0x90) { // note on
+ int key = data[1];
+ int velocity = data[2];
+
+ DEBUG(lv2input, "Event key:%d vel:%d\n", key, velocity);
+
+ int i = mmap.lookup(key);
+ if(velocity && i != -1) {
+ list[listsize].type = TYPE_ONSET;
+ list[listsize].instrument = i;
+ list[listsize].velocity = velocity / 127.0;
+ list[listsize].offset = ev->time.frames;
+ listsize++;
+ }
+ }
+ ev = lv2_atom_sequence_next(ev);
+ }
+
+ *nevents = listsize;
+ return list;
+}
+
+void InputLV2::post()
+{
+}
diff --git a/src/input_lv2.h b/src/input_lv2.h
new file mode 100644
index 0000000..32e2fd8
--- /dev/null
+++ b/src/input_lv2.h
@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * input_lv2.h
+ *
+ * Wed Jul 13 14:27:02 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_INPUT_LV2_H__
+#define __DRUMGIZMO_INPUT_LV2_H__
+
+#include <audioinputenginemidi.h>
+
+#include <lv2/lv2plug.in/ns/ext/atom/atom.h>
+
+class InputLV2 : public AudioInputEngineMidi {
+public:
+ InputLV2();
+ ~InputLV2();
+
+ bool init(Instruments &instruments);
+
+ void setParm(std::string parm, std::string value);
+
+ bool start();
+ void stop();
+
+ void pre();
+ event_t *run(size_t pos, size_t len, size_t *nevents);
+ void post();
+
+ LV2_Atom_Sequence *eventPort;
+
+private:
+ Instruments *instruments;
+};
+
+#endif/*__DRUMGIZMO_INPUT_LV2_H__*/
diff --git a/src/lv2.cc b/src/lv2.cc
new file mode 100644
index 0000000..d87665d
--- /dev/null
+++ b/src/lv2.cc
@@ -0,0 +1,235 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * lv2.cc
+ *
+ * Wed Jul 13 13:50:33 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include <lv2/lv2plug.in/ns/lv2core/lv2.h>
+#include <lv2/lv2plug.in/ns/ext/atom/atom.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "lv2_gui.h"
+#include "lv2_instance.h"
+
+#include <hugin.hpp>
+
+#define DRUMGIZMO_URI "http://drumgizmo.org/lv2"
+#define NS_DG DRUMGIZMO_URI "/atom#"
+
+// Stuff to handle DrumGizmo* transmission from instance to GUI.
+static LV2_DrumGizmo_Descriptor dg_descriptor;
+
+static DrumGizmo *dg_get_pci(LV2_Handle instance)
+{
+ DGLV2 *dglv2 = (DGLV2 *)instance;
+ return dglv2->dg;
+}
+
+LV2_State_Status
+dg_save(LV2_Handle instance,
+ LV2_State_Store_Function store,
+ LV2_State_Handle handle,
+ uint32_t flags,
+ const LV2_Feature *const * features)
+{
+ DGLV2 *dglv2 = (DGLV2 *)instance;
+
+ if(!dglv2 || !dglv2->map || !dglv2->map->map) {
+ // Missing urid feature?
+ return LV2_STATE_ERR_NO_FEATURE;
+ }
+
+ std::string config = dglv2->dg->configString();
+
+ // Backwards compatible fix for errornously stored '\0' byte in < v0.9.8.
+ // Remove when we reach v1.0
+ config += "\n";
+
+ store(handle,
+ dglv2->map->map(dglv2->map->handle, NS_DG "config"),
+ config.data(),
+ config.length(),
+ dglv2->map->map(dglv2->map->handle, LV2_ATOM__Chunk),
+ LV2_STATE_IS_POD | LV2_STATE_IS_PORTABLE);
+
+ return LV2_STATE_SUCCESS;
+}
+
+LV2_State_Status
+dg_restore(LV2_Handle instance,
+ LV2_State_Retrieve_Function retrieve,
+ LV2_State_Handle handle,
+ uint32_t flags,
+ const LV2_Feature *const * features)
+{
+ DGLV2 *dglv2 = (DGLV2 *)instance;
+
+ if(!dglv2 || !dglv2->map || !dglv2->map->map) {
+ // Missing urid feature?
+ return LV2_STATE_ERR_NO_FEATURE;
+ }
+
+ size_t size;
+ uint32_t type;
+
+ const char* data =
+ (const char*)retrieve(handle,
+ dglv2->map->map(dglv2->map->handle, NS_DG "config"),
+ &size, &type, &flags);
+
+ DEBUG(lv2, "Config string size: %d, data*: %p\n", (int)size, data);
+
+ if(data && size) {
+ std::string config;
+
+ // Fix for errornously stored '\0' byte in < v0.9.8.
+ // Remove when we reach v1.0
+ if(data[size - 1] == '\0') size--;
+
+ config.append(data, size);
+ dglv2->dg->setConfigString(config);
+ }
+
+ return LV2_STATE_SUCCESS;
+}
+
+static LV2_State_Interface dg_persist = {
+ dg_save,
+ dg_restore
+};
+
+LV2_Handle instantiate(const struct _LV2_Descriptor *descriptor,
+ double sample_rate,
+ const char *bundle_path,
+ const LV2_Feature *const *features)
+{
+ DGLV2 *dglv2 = new DGLV2;
+
+ dglv2->map = NULL;
+ for (int i = 0 ; features[i] ; i++) {
+ if (!strcmp(features[i]->URI, LV2_URID_URI "#map")) {
+ dglv2->map = (LV2_URID_Map*)features[i]->data;
+ }
+ }
+
+ dg_descriptor.get_pci = dg_get_pci;
+
+ dglv2->in = new InputLV2();
+ dglv2->out = new OutputLV2();
+
+ dglv2->buffer = NULL;
+ dglv2->buffer_size = 0;
+
+ dglv2->dg = new DrumGizmo(dglv2->out, dglv2->in);
+ dglv2->dg->setSamplerate(sample_rate);
+
+ return (LV2_Handle)dglv2;
+}
+
+void connect_port(LV2_Handle instance,
+ uint32_t port,
+ void *data_location)
+{
+ DGLV2 *dglv2 = (DGLV2 *)instance;
+
+ if(port == 0) {// MIDI in
+ dglv2->in->eventPort = (LV2_Atom_Sequence*)data_location;
+ } else {// Audio Port
+ if(port - 1 < NUM_OUTPUTS) {
+ dglv2->out->outputPorts[port - 1].samples = (sample_t*)data_location;
+ dglv2->out->outputPorts[port - 1].size = 0;
+ }
+ }
+}
+
+void activate(LV2_Handle instance)
+{
+ // We don't really need to do anything here.
+ DGLV2 *dglv2 = (DGLV2 *)instance;
+ (void)dglv2;
+}
+
+void run(LV2_Handle instance,
+ uint32_t sample_count)
+{
+ static size_t pos = 0;
+ DGLV2 *dglv2 = (DGLV2 *)instance;
+
+ dglv2->dg->run(pos, dglv2->buffer, sample_count);
+
+ pos += sample_count;
+}
+
+void deactivate(LV2_Handle instance)
+{
+ // We don't really need to do anything here.
+ DGLV2 *dglv2 = (DGLV2 *)instance;
+ dglv2->dg->stop();
+}
+
+void cleanup(LV2_Handle instance)
+{
+ DGLV2 *dglv2 = (DGLV2 *)instance;
+ delete dglv2->dg;
+ delete dglv2->in;
+ delete dglv2->out;
+}
+
+const void* extension_data(const char *uri)
+{
+ if(!strcmp(uri, PLUGIN_INSTANCE_URI)) return &dg_descriptor;
+ if(!strcmp(uri, LV2_STATE__interface)) return &dg_persist;
+ return NULL;
+}
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static const LV2_Descriptor descriptor = {
+ DRUMGIZMO_URI,
+ instantiate,
+ connect_port,
+ activate,
+ run,
+ deactivate,
+ cleanup,
+ extension_data
+};
+
+LV2_SYMBOL_EXPORT
+const LV2_Descriptor* lv2_descriptor(uint32_t index)
+{
+ switch (index) {
+ case 0:
+ return &descriptor;
+ default:
+ return NULL;
+ }
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/src/lv2_event.h b/src/lv2_event.h
new file mode 100644
index 0000000..2c340ba
--- /dev/null
+++ b/src/lv2_event.h
@@ -0,0 +1,281 @@
+/*
+ LV2 Event Extension
+ Copyright 2008-2011 David Robillard <http://drobilla.net>
+ Copyright 2006-2007 Lars Luthman <lars.luthman@gmail.com>
+
+ Permission to use, copy, modify, and/or distribute this software for any
+ purpose with or without fee is hereby granted, provided that the above
+ copyright notice and this permission notice appear in all copies.
+
+ THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#ifndef LV2_EVENT_H
+#define LV2_EVENT_H
+
+#define LV2_EVENT_URI "http://lv2plug.in/ns/ext/event"
+#define LV2_EVENT_AUDIO_STAMP 0
+
+#include <stdint.h>
+
+/**
+ @file event.h
+ C API for the LV2 Event extension <http://lv2plug.in/ns/ext/event>.
+
+ This extension is a generic transport mechanism for time stamped events
+ of any type (e.g. MIDI, OSC, ramps, etc). Each port can transport mixed
+ events of any type; the type of events and timestamps are defined by a URI
+ which is mapped to an integer by the host for performance reasons.
+
+ This extension requires the host to support the LV2 URI Map extension.
+ Any host which supports this extension MUST guarantee that any call to
+ the LV2 URI Map uri_to_id function with the URI of this extension as the
+ 'map' argument returns a value within the range of uint16_t.
+*/
+
+/**
+ The best Pulses Per Quarter Note for tempo-based uint32_t timestamps.
+ Equal to 2^12 * 5 * 7 * 9 * 11 * 13 * 17, which is evenly divisble
+ by all integers from 1 through 18 inclusive, and powers of 2 up to 2^12.
+*/
+static const uint32_t LV2_EVENT_PPQN = 3136573440U;
+
+/**
+ An LV2 event (header only).
+
+ LV2 events are generic time-stamped containers for any type of event.
+ The type field defines the format of a given event's contents.
+
+ This struct defines the header of an LV2 event. An LV2 event is a single
+ chunk of POD (plain old data), usually contained in a flat buffer (see
+ LV2_EventBuffer below). Unless a required feature says otherwise, hosts may
+ assume a deep copy of an LV2 event can be created safely using a simple:
+
+ memcpy(ev_copy, ev, sizeof(LV2_Event) + ev->size); (or equivalent)
+*/
+typedef struct {
+
+ /**
+ The frames portion of timestamp. The units used here can optionally be
+ set for a port (with the lv2ev:timeUnits property), otherwise this is
+ audio frames, corresponding to the sample_count parameter of the LV2 run
+ method (e.g. frame 0 is the first frame for that call to run).
+ */
+ uint32_t frames;
+
+ /**
+ The sub-frames portion of timestamp. The units used here can optionally
+ be set for a port (with the lv2ev:timeUnits property), otherwise this is
+ 1/(2^32) of an audio frame.
+ */
+ uint32_t subframes;
+
+ /**
+ The type of this event, as a number which represents some URI
+ defining an event type. This value MUST be some value previously
+ returned from a call to the uri_to_id function defined in the LV2
+ URI map extension (see lv2_uri_map.h).
+ There are special rules which must be followed depending on the type
+ of an event. If the plugin recognizes an event type, the definition
+ of that event type will describe how to interpret the event, and
+ any required behaviour. Otherwise, if the type is 0, this event is a
+ non-POD event and lv2_event_unref MUST be called if the event is
+ 'dropped' (see above). Even if the plugin does not understand an event,
+ it may pass the event through to an output by simply copying (and NOT
+ calling lv2_event_unref). These rules are designed to allow for generic
+ event handling plugins and large non-POD events, but with minimal hassle
+ on simple plugins that "don't care" about these more advanced features.
+ */
+ uint16_t type;
+
+ /**
+ The size of the data portion of this event in bytes, which immediately
+ follows. The header size (12 bytes) is not included in this value.
+ */
+ uint16_t size;
+
+ /* size bytes of data follow here */
+
+} LV2_Event;
+
+
+/**
+ A buffer of LV2 events (header only).
+
+ Like events (which this contains) an event buffer is a single chunk of POD:
+ the entire buffer (including contents) can be copied with a single memcpy.
+ The first contained event begins sizeof(LV2_EventBuffer) bytes after the
+ start of this struct.
+
+ After this header, the buffer contains an event header (defined by struct
+ LV2_Event), followed by that event's contents (padded to 64 bits), followed
+ by another header, etc:
+
+ | | | | | | |
+ | | | | | | | | | | | | | | | | | | | | | | | | |
+ |FRAMES |SUBFRMS|TYP|LEN|DATA..DATA..PAD|FRAMES | ...
+*/
+typedef struct {
+
+ /**
+ The contents of the event buffer. This may or may not reside in the
+ same block of memory as this header, plugins must not assume either.
+ The host guarantees this points to at least capacity bytes of allocated
+ memory (though only size bytes of that are valid events).
+ */
+ uint8_t* data;
+
+ /**
+ The size of this event header in bytes (including everything).
+
+ This is to allow for extending this header in the future without
+ breaking binary compatibility. Whenever this header is copied,
+ it MUST be done using this field (and NOT the sizeof this struct).
+ */
+ uint16_t header_size;
+
+ /**
+ The type of the time stamps for events in this buffer.
+ As a special exception, '0' always means audio frames and subframes
+ (1/UINT32_MAX'th of a frame) in the sample rate passed to instantiate.
+
+ INPUTS: The host must set this field to the numeric ID of some URI
+ defining the meaning of the frames/subframes fields of contained events
+ (obtained by the LV2 URI Map uri_to_id function with the URI of this
+ extension as the 'map' argument, see lv2_uri_map.h). The host must
+ never pass a plugin a buffer which uses a stamp type the plugin does not
+ 'understand'. The value of this field must never change, except when
+ connect_port is called on the input port, at which time the host MUST
+ have set the stamp_type field to the value that will be used for all
+ subsequent run calls.
+
+ OUTPUTS: The plugin may set this to any value that has been returned
+ from uri_to_id with the URI of this extension for a 'map' argument.
+ When connected to a buffer with connect_port, output ports MUST set this
+ field to the type of time stamp they will be writing. On any call to
+ connect_port on an event input port, the plugin may change this field on
+ any output port, it is the responsibility of the host to check if any of
+ these values have changed and act accordingly.
+ */
+ uint16_t stamp_type;
+
+ /**
+ The number of events in this buffer.
+
+ INPUTS: The host must set this field to the number of events contained
+ in the data buffer before calling run(). The plugin must not change
+ this field.
+
+ OUTPUTS: The plugin must set this field to the number of events it has
+ written to the buffer before returning from run(). Any initial value
+ should be ignored by the plugin.
+ */
+ uint32_t event_count;
+
+ /**
+ The size of the data buffer in bytes.
+ This is set by the host and must not be changed by the plugin.
+ The host is allowed to change this between run() calls.
+ */
+ uint32_t capacity;
+
+ /**
+ The size of the initial portion of the data buffer containing data.
+
+ INPUTS: The host must set this field to the number of bytes used
+ by all events it has written to the buffer (including headers)
+ before calling the plugin's run().
+ The plugin must not change this field.
+
+ OUTPUTS: The plugin must set this field to the number of bytes
+ used by all events it has written to the buffer (including headers)
+ before returning from run().
+ Any initial value should be ignored by the plugin.
+ */
+ uint32_t size;
+
+} LV2_Event_Buffer;
+
+
+/**
+ Opaque pointer to host data.
+*/
+typedef void* LV2_Event_Callback_Data;
+
+
+/**
+ Non-POD events feature.
+
+ To support this feature the host must pass an LV2_Feature struct to the
+ plugin's instantiate method with URI "http://lv2plug.in/ns/ext/event"
+ and data pointed to an instance of this struct. Note this feature
+ is not mandatory to support the event extension.
+*/
+typedef struct {
+
+ /**
+ Opaque pointer to host data.
+
+ The plugin MUST pass this to any call to functions in this struct.
+ Otherwise, it must not be interpreted in any way.
+ */
+ LV2_Event_Callback_Data callback_data;
+
+ /**
+ Take a reference to a non-POD event.
+
+ If a plugin receives an event with type 0, it means the event is a
+ pointer to some object in memory and not a flat sequence of bytes
+ in the buffer. When receiving a non-POD event, the plugin already
+ has an implicit reference to the event. If the event is stored AND
+ passed to an output, lv2_event_ref MUST be called on that event.
+ If the event is only stored OR passed through, this is not necessary
+ (as the plugin already has 1 implicit reference).
+
+ @param event An event received at an input that will not be copied to
+ an output or stored in any way.
+
+ @param context The calling context. Like event types, this is a mapped
+ URI, see lv2_context.h. Simple plugin with just a run() method should
+ pass 0 here (the ID of the 'standard' LV2 run context). The host
+ guarantees that this function is realtime safe iff @a context is
+ realtime safe.
+
+ PLUGINS THAT VIOLATE THESE RULES MAY CAUSE CRASHES AND MEMORY LEAKS.
+ */
+ uint32_t (*lv2_event_ref)(LV2_Event_Callback_Data callback_data,
+ LV2_Event* event);
+
+ /**
+ Drop a reference to a non-POD event.
+
+ If a plugin receives an event with type 0, it means the event is a
+ pointer to some object in memory and not a flat sequence of bytes
+ in the buffer. If the plugin does not pass the event through to
+ an output or store it internally somehow, it MUST call this function
+ on the event (more information on using non-POD events below).
+
+ @param event An event received at an input that will not be copied to an
+ output or stored in any way.
+
+ @param context The calling context. Like event types, this is a mapped
+ URI, see lv2_context.h. Simple plugin with just a run() method should
+ pass 0 here (the ID of the 'standard' LV2 run context). The host
+ guarantees that this function is realtime safe iff @a context is
+ realtime safe.
+
+ PLUGINS THAT VIOLATE THESE RULES MAY CAUSE CRASHES AND MEMORY LEAKS.
+ */
+ uint32_t (*lv2_event_unref)(LV2_Event_Callback_Data callback_data,
+ LV2_Event* event);
+
+} LV2_Event_Feature;
+
+
+#endif /* LV2_EVENT_H */
diff --git a/src/lv2_gui.cc b/src/lv2_gui.cc
new file mode 100644
index 0000000..858e097
--- /dev/null
+++ b/src/lv2_gui.cc
@@ -0,0 +1,237 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * lv2.cc
+ *
+ * Wed Jul 13 13:50:33 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "lv2_gui.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#include <lv2/lv2plug.in/ns/ext/instance-access/instance-access.h>
+#include <lv2/lv2plug.in/ns/extensions/ui/ui.h>
+
+#include "lv2_instance.h"
+
+// From: http://codesearch.google.com/#50sg5qT6WNE/src/lv2_ui_dssi.c
+// git://repo.or.cz/nekobee.git/src/lv2_ui_dssi.c
+
+#define DRUMGIZMO_UI_URI "http://drumgizmo.org/lv2-gui"
+
+#include <plugingui.h>
+
+/**
+ * When LV2_EXTERNAL_UI_URI UI is instantiated, the returned
+ * LV2UI_Widget handle must be cast to pointer to struct lv2_external_ui.
+ * UI is created in invisible state.
+ */
+struct lv2_external_ui
+{
+ /**
+ * Host calls this function regulary. UI library implementing the
+ * callback may do IPC or redraw the UI.
+ *
+ * @param _this_ the UI context
+ */
+ void (* run)(struct lv2_external_ui * _this_);
+
+ /**
+ * Host calls this function to make the plugin UI visible.
+ *
+ * @param _this_ the UI context
+ */
+ void (* show)(struct lv2_external_ui * _this_);
+
+ /**
+ * Host calls this function to make the plugin UI invisible again.
+ *
+ * @param _this_ the UI context
+ */
+ void (* hide)(struct lv2_external_ui * _this_);
+};
+
+/** UI extension suitable for out-of-process UIs */
+#define LV2_EXTERNAL_UI_URI "http://lv2plug.in/ns/extensions/ui#external"
+
+/**
+ * On UI instantiation, host must supply LV2_EXTERNAL_UI_URI
+ * feature. LV2_Feature::data must be pointer to struct lv2_external_ui_host. */
+struct lv2_external_ui_host
+{
+ /**
+ * Callback that plugin UI will call
+ * when UI (GUI window) is closed by user.
+ * This callback wil; be called during execution of lv2_external_ui::run()
+ * (i.e. not from background thread).
+ *
+ * After this callback is called, UI is defunct. Host must call
+ * LV2UI_Descriptor::cleanup(). If host wants to make the UI visible
+ * again UI must be reinstantiated.
+ *
+ * @param controller Host context associated with plugin UI, as
+ * supplied to LV2UI_Descriptor::instantiate()
+ */
+ void (* ui_closed)(LV2UI_Controller controller);
+
+ /**
+ * Optional (may be NULL) "user friendly" identifier which the UI
+ * may display to allow a user to easily associate this particular
+ * UI instance with the correct plugin instance as it is represented
+ * by the host (e.g. "track 1" or "channel 4").
+ *
+ * If supplied by host, the string will be referenced only during
+ * LV2UI_Descriptor::instantiate()
+ */
+ const char * plugin_human_id;
+};
+
+struct DG_GUI {
+ struct lv2_external_ui virt;
+
+ LV2_Handle instance_handle;
+ LV2_Extension_Data_Feature *data_access;
+ DrumGizmo *instance;
+ LV2UI_Controller controller;
+
+ GUI::PluginGUI *gui;
+ struct lv2_external_ui_host *ui_host_ptr;
+};
+
+static void ui_run(struct lv2_external_ui * _this_)
+{
+ struct DG_GUI *dggui = (struct DG_GUI *)_this_;
+ dggui->gui->processEvents();
+}
+
+static void ui_show(struct lv2_external_ui * _this_)
+{
+ struct DG_GUI *dggui = (struct DG_GUI *)_this_;
+ dggui->gui->show();
+}
+
+static void ui_hide(struct lv2_external_ui * _this_)
+{
+ struct DG_GUI *dggui = (struct DG_GUI *)_this_;
+ if(dggui->gui) dggui->gui->hide();
+}
+
+static void closeHandler(void *ptr)
+{
+ struct DG_GUI *gui = (struct DG_GUI *)ptr;
+
+ if(gui->ui_host_ptr && gui->ui_host_ptr->ui_closed) {
+ gui->ui_host_ptr->ui_closed(gui->controller);
+ }
+
+ delete gui->gui;
+ gui->gui = NULL;
+}
+
+static LV2UI_Handle ui_instantiate(const struct _LV2UI_Descriptor * descriptor,
+ const char * plugin_uri,
+ const char * bundle_path,
+ LV2UI_Write_Function write_function,
+ LV2UI_Controller controller,
+ LV2UI_Widget * widget,
+ const LV2_Feature * const * features)
+{
+ printf("ui_instantiate\n");
+
+ struct DG_GUI* pt = new struct DG_GUI;
+
+ pt->ui_host_ptr = NULL;
+ pt->controller = controller;
+
+ while (*features != NULL) {
+ std::string uri = (*features)->URI;
+ void *data = (*features)->data;
+
+ printf("DGUI: feature: %s\n", uri.c_str());
+
+ if(uri == LV2_INSTANCE_ACCESS_URI) {
+ pt->instance_handle = data;
+ }
+
+ if(uri == LV2_DATA_ACCESS_URI) {
+ pt->data_access = (LV2_Extension_Data_Feature *)data;
+ }
+
+ if(uri == LV2_EXTERNAL_UI_URI) {
+ pt->ui_host_ptr = (struct lv2_external_ui_host *)data;
+ }
+ features++;
+ }
+
+ LV2_DrumGizmo_Descriptor *dgd =
+ (LV2_DrumGizmo_Descriptor *)(*pt->data_access->data_access)(PLUGIN_INSTANCE_URI);
+
+ pt->instance = dgd->get_pci(pt->instance_handle);
+ pt->virt.run = ui_run;
+ pt->virt.show = ui_show;
+ pt->virt.hide = ui_hide;
+ pt->gui = new GUI::PluginGUI();
+ pt->gui->setWindowClosedCallback(closeHandler, pt);
+
+ *widget = (LV2UI_Widget)pt;
+
+ return pt;
+}
+
+static void ui_cleanup(LV2UI_Handle ui)
+{
+ struct DG_GUI* pt = (struct DG_GUI*)ui;
+ delete pt->gui;
+ pt->gui = NULL;
+ delete pt;
+}
+
+static void ui_port_event(LV2UI_Handle ui,
+ uint32_t port_index,
+ uint32_t buffer_size,
+ uint32_t format,
+ const void * buffer)
+{
+}
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static LV2UI_Descriptor descriptor = {
+ DRUMGIZMO_UI_URI,
+ ui_instantiate,
+ ui_cleanup,
+ ui_port_event,
+ NULL
+};
+
+const LV2UI_Descriptor *lv2ui_descriptor(uint32_t index)
+{
+ if(index == 0) return &descriptor;
+ return NULL;
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/src/lv2_gui.h b/src/lv2_gui.h
new file mode 100644
index 0000000..2857445
--- /dev/null
+++ b/src/lv2_gui.h
@@ -0,0 +1,40 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * lv2_gui.h
+ *
+ * Fri Oct 21 10:48:53 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_LV2_GUI_H__
+#define __DRUMGIZMO_LV2_GUI_H__
+
+#include <lv2/lv2plug.in/ns/lv2core/lv2.h>
+#include <lv2/lv2plug.in/ns/ext/data-access/data-access.h>
+
+#define PLUGIN_INSTANCE_URI "http://drumgizmo.org/ns/drumgizmo-plugin-instance"
+
+class DrumGizmo;
+struct LV2_DrumGizmo_Descriptor {
+ DrumGizmo *(*get_pci)(LV2_Handle instance);
+};
+
+#endif/*__DRUMGIZMO_LV2_GUI_H__*/
diff --git a/src/lv2_instance.h b/src/lv2_instance.h
new file mode 100644
index 0000000..e050e22
--- /dev/null
+++ b/src/lv2_instance.h
@@ -0,0 +1,48 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * lv2_instance.h
+ *
+ * Sun Nov 20 15:27:41 CET 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_LV2_INSTANCE_H__
+#define __DRUMGIZMO_LV2_INSTANCE_H__
+
+#include <lv2/lv2plug.in/ns/lv2core/lv2.h>
+#include <lv2/lv2plug.in/ns/ext/state/state.h>
+#include <lv2/lv2plug.in/ns/ext/urid/urid.h>
+
+#include "input_lv2.h"
+#include "output_lv2.h"
+
+#include <drumgizmo.h>
+
+typedef struct {
+ InputLV2 *in;
+ OutputLV2 *out;
+ DrumGizmo *dg;
+ sample_t *buffer;
+ size_t buffer_size;
+ LV2_URID_Map* map;
+} DGLV2;
+
+#endif/*__DRUMGIZMO_LV2_INSTANCE_H__*/
diff --git a/src/manifest.ttl b/src/manifest.ttl
new file mode 100644
index 0000000..65a8953
--- /dev/null
+++ b/src/manifest.ttl
@@ -0,0 +1,7 @@
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+<http://drumgizmo.org/lv2>
+ a lv2:Plugin ;
+ lv2:binary <drumgizmo.so> ;
+ rdfs:seeAlso <drumgizmo.ttl> .
diff --git a/src/message.h b/src/message.h
new file mode 100644
index 0000000..07b0300
--- /dev/null
+++ b/src/message.h
@@ -0,0 +1,121 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * message.h
+ *
+ * Wed Mar 20 15:50:57 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_MESSAGE_H__
+#define __DRUMGIZMO_MESSAGE_H__
+
+#include <string>
+
+class MessageHandler;
+
+class Message {
+public:
+ typedef enum {
+ // Engine -> GUI Messages:
+ LoadStatus, // Signal GUI the current load status.
+ LoadStatusMidimap, // Signal GUI the current load status of the midimap.
+
+ // GUI -> Engine, Engine -> Engine Messages:
+ LoadDrumKit, // Signal engine to load drumkit.
+ LoadMidimap, // Signal engine to load midimap.
+ EngineSettingsMessage, // Request or receive engine settings.
+ ChangeSettingMessage, // Update named setting in engine.
+ } type_t;
+
+ typedef enum {
+ NormalProcessing, // Just add to the queue
+ FilterMultiple, // Ignore top message if it has the same type.
+ // SyncWait, // Block the send call until the message has been handled by the receiver.
+ } processing_mode_t;
+
+ virtual ~Message() {}
+ virtual type_t type() = 0;
+ virtual processing_mode_t processing_mode() { return NormalProcessing; }
+};
+
+class LoadStatusMessage : public Message {
+public:
+ type_t type() { return Message::LoadStatus; }
+ processing_mode_t processing_mode() { return FilterMultiple; }
+ unsigned int number_of_files;
+ unsigned int numer_of_files_loaded;
+ std::string current_file;
+};
+
+class LoadStatusMessageMidimap : public Message {
+public:
+ type_t type() { return Message::LoadStatusMidimap; }
+ bool success;
+};
+
+class LoadDrumKitMessage : public Message {
+public:
+ type_t type() { return Message::LoadDrumKit; }
+ std::string drumkitfile;
+};
+
+class LoadMidimapMessage : public Message {
+public:
+ type_t type() { return Message::LoadMidimap; }
+ std::string midimapfile;
+};
+
+class EngineSettingsMessage : public Message {
+public:
+ type_t type() { return Message::EngineSettingsMessage; }
+ std::string midimapfile;
+ bool midimap_loaded;
+
+ std::string drumkitfile;
+ bool drumkit_loaded;
+
+ float enable_velocity_modifier;
+ float velocity_modifier_falloff;
+ float velocity_modifier_weight;
+ float enable_velocity_randomiser;
+ float velocity_randomiser_weight;
+};
+
+class ChangeSettingMessage : public Message {
+public:
+ typedef enum {
+ enable_velocity_modifier,
+ velocity_modifier_weight,
+ velocity_modifier_falloff,
+ } setting_name_t;
+
+ ChangeSettingMessage(setting_name_t n, float v) {
+ name = n;
+ value = v;
+ }
+
+ type_t type() { return Message::ChangeSettingMessage; }
+
+ setting_name_t name;
+ float value;
+};
+
+#endif/*__DRUMGIZMO_MESSAGE_H__*/
diff --git a/src/messagehandler.cc b/src/messagehandler.cc
new file mode 100644
index 0000000..52a89a5
--- /dev/null
+++ b/src/messagehandler.cc
@@ -0,0 +1,89 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * messagehandler.cc
+ *
+ * Fri Jun 14 20:30:43 CEST 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "messagehandler.h"
+
+#include <hugin.hpp>
+
+#include "messagereceiver.h"
+
+// Global messagehandler:
+MessageHandler msghandler;
+
+MessageHandler::MessageHandler()
+{
+}
+
+void MessageHandler::addReceiver(message_receiver_id_t id,
+ MessageReceiver *receiver)
+{
+ MutexAutolock l(mutex);
+
+ receivers[id] = receiver;
+}
+
+void MessageHandler::removeReceiver(MessageReceiver *receiver)
+{
+ MutexAutolock l(mutex);
+
+ std::map<message_receiver_id_t, MessageReceiver *>::iterator i =
+ receivers.begin();
+ while(i != receivers.end()) {
+ if(i->second == receiver) {
+ receivers.erase(i);
+ break;
+ }
+ i++;
+ }
+}
+
+bool MessageHandler::sendMessage(message_receiver_id_t id, Message* msg)
+{
+ MutexAutolock l(mutex);
+
+ if(receivers.find(id) == receivers.end()) {
+ //WARN(msghandler, "Could not find id %d\n", id);
+ delete msg;
+ return false;
+ }
+
+ //DEBUG(msghandler, "Sending message to id %d\n", id);
+
+ MessageReceiver *receiver = receivers[id];
+ /* // This code causes sporadic segfaults on windows.
+ if(msg->processing_mode() == Message::FilterMultiple) {
+ Message *pmsg;
+ MutexAutolock lock(receiver->message_mutex); // Make peek/receive atomic.
+ while( (pmsg = receiver->peekMessage()) != NULL) {
+ if(pmsg->type() != msg->type()) break;
+ // Remove all old messages with same type.
+ delete receiver->receiveMessage();
+ }
+ }
+ */
+ receiver->sendMessage(msg);
+ return true;
+}
diff --git a/src/messagehandler.h b/src/messagehandler.h
new file mode 100644
index 0000000..9812777
--- /dev/null
+++ b/src/messagehandler.h
@@ -0,0 +1,66 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * messagehandler.h
+ *
+ * Fri Jun 14 20:30:43 CEST 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_MESSAGEHANDLER_H__
+#define __DRUMGIZMO_MESSAGEHANDLER_H__
+
+#include <map>
+
+#include "message.h"
+#include "mutex.h"
+
+typedef enum {
+ MSGRCV_ENGINE = 1,
+ MSGRCV_UI = 2,
+ MSGRCV_LOADER = 3,
+} message_receiver_id_t;
+
+class MessageReceiver;
+
+class MessageHandler {
+public:
+ MessageHandler();
+
+ void addReceiver(message_receiver_id_t id, MessageReceiver *receiver);
+ void removeReceiver(MessageReceiver *receiver);
+
+ /**
+ * Send Message to receiver with specified id.
+ * @return Return true if id is registered. Return false if id is not
+ * currently registered.
+ */
+ bool sendMessage(message_receiver_id_t id, Message* msg);
+
+private:
+ std::map<message_receiver_id_t, MessageReceiver *> receivers;
+
+ Mutex mutex;
+};
+
+// Global MessageHandler;
+extern MessageHandler msghandler;
+
+#endif/*__DRUMGIZMO_MESSAGEHANDLER_H__*/
diff --git a/src/messagereceiver.cc b/src/messagereceiver.cc
new file mode 100644
index 0000000..a24482b
--- /dev/null
+++ b/src/messagereceiver.cc
@@ -0,0 +1,78 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * messagereceiver.cc
+ *
+ * Sun Jun 16 12:09:06 CEST 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "messagereceiver.h"
+
+#include <hugin.hpp>
+
+MessageReceiver::MessageReceiver(message_receiver_id_t id)
+{
+ msghandler.addReceiver(id, this);
+}
+
+MessageReceiver::~MessageReceiver()
+{
+ msghandler.removeReceiver(this);
+}
+
+void MessageReceiver::sendMessage(Message *msg)
+{
+ MutexAutolock l(message_mutex);
+
+ message_queue.push_back(msg);
+}
+
+Message *MessageReceiver::receiveMessage()
+{
+ Message *msg = NULL;
+ if(message_queue.size()) {
+ msg = message_queue.front();
+ message_queue.pop_front();
+ }
+ return msg;
+}
+
+Message *MessageReceiver::peekMessage()
+{
+ Message *msg = NULL;
+ if(message_queue.size()) {
+ msg = message_queue.front();
+ }
+ return msg;
+}
+
+void MessageReceiver::handleMessages(size_t max)
+{
+ MutexAutolock l(message_mutex);
+ bool process_all = false;
+ if(max == 0) process_all = true;
+
+ while((process_all || max--) && peekMessage()) {
+ Message *msg = receiveMessage();
+ handleMessage(msg);
+ delete msg;
+ }
+}
diff --git a/src/messagereceiver.h b/src/messagereceiver.h
new file mode 100644
index 0000000..2794091
--- /dev/null
+++ b/src/messagereceiver.h
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * messagereceiver.h
+ *
+ * Sun Jun 16 12:09:06 CEST 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_MESSAGERECEIVER_H__
+#define __DRUMGIZMO_MESSAGERECEIVER_H__
+
+#include <list>
+
+#include "mutex.h"
+#include "message.h"
+#include "messagehandler.h"
+
+class MessageReceiver {
+ friend class MessageHandler;
+public:
+ MessageReceiver(message_receiver_id_t id);
+ ~MessageReceiver();
+
+ /**
+ * Receive message from the message queue.
+ */
+ Message *receiveMessage();
+
+ /**
+ * Receive message from the message queue without removing it.
+ */
+ Message *peekMessage();
+
+ /**
+ * Add a message to the message queue.
+ */
+ void sendMessage(Message *msg);
+
+ /**
+ * Handle messages from the event queue.
+ * @param max_number_of_events the maximum number of events to be handled in
+ * this call. 0 means all.
+ */
+ void handleMessages(size_t max_number_of_events = 0);
+
+ /**
+ * Handler to be implemented in child classes.
+ * Handles a single event.
+ */
+ virtual void handleMessage(Message *msg) = 0;
+
+private:
+ Mutex message_mutex;
+ std::list<Message *> message_queue;
+};
+
+#endif/*__DRUMGIZMO_MESSAGERECEIVER_H__*/
diff --git a/src/midimapparser.cc b/src/midimapparser.cc
new file mode 100644
index 0000000..9d30a05
--- /dev/null
+++ b/src/midimapparser.cc
@@ -0,0 +1,52 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * midimapparser.cc
+ *
+ * Mon Aug 8 16:55:30 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "midimapparser.h"
+
+MidiMapParser::MidiMapParser(std::string file)
+{
+ fd = fopen(file.c_str(), "r");
+}
+
+MidiMapParser::~MidiMapParser()
+{
+ if(fd) fclose(fd);
+}
+
+void MidiMapParser::startTag(std::string name, attr_t attr)
+{
+ if(name == "map") {
+ if(attr.find("note") != attr.end() && attr.find("instr") != attr.end()) {
+ midimap[atoi(attr["note"].c_str())] = attr["instr"];
+ }
+ }
+}
+
+int MidiMapParser::readData(char *data, size_t size)
+{
+ if(!fd) return -1;
+ return fread(data, 1, size, fd);
+}
diff --git a/src/midimapparser.h b/src/midimapparser.h
new file mode 100644
index 0000000..98ab886
--- /dev/null
+++ b/src/midimapparser.h
@@ -0,0 +1,52 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * midimapparser.h
+ *
+ * Mon Aug 8 16:55:30 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_MIDIMAPPARSER_H__
+#define __DRUMGIZMO_MIDIMAPPARSER_H__
+
+#include <stdio.h>
+
+#include "saxparser.h"
+
+#include "midimapper.h"
+
+class MidiMapParser : public SAXParser {
+public:
+ MidiMapParser(std::string file);
+ ~MidiMapParser();
+
+ void startTag(std::string name, attr_t attr);
+
+ midimap_t midimap;
+
+protected:
+ int readData(char *data, size_t size);
+
+private:
+ FILE *fd;
+};
+
+#endif/*__DRUMGIZMO_MIDIMAPPARSER_H__*/
diff --git a/src/midimapper.cc b/src/midimapper.cc
new file mode 100644
index 0000000..d4ff94e
--- /dev/null
+++ b/src/midimapper.cc
@@ -0,0 +1,41 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * midimapper.cc
+ *
+ * Mon Jul 21 15:24:08 CEST 2008
+ * Copyright 2008 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "midimapper.h"
+
+int MidiMapper::lookup(int note)
+{
+ if(midimap.find(note) == midimap.end()) return -1;
+ std::string instr = midimap[note];
+ if(instrmap.find(instr) == instrmap.end()) return -1;
+ return instrmap[instr];
+}
+
+void MidiMapper::clear()
+{
+ midimap.clear();
+ instrmap.clear();
+}
diff --git a/src/midimapper.h b/src/midimapper.h
new file mode 100644
index 0000000..7439c4b
--- /dev/null
+++ b/src/midimapper.h
@@ -0,0 +1,46 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * midimapper.h
+ *
+ * Mon Jul 21 15:24:07 CEST 2008
+ * Copyright 2008 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_MIDIMAPPER_H__
+#define __DRUMGIZMO_MIDIMAPPER_H__
+
+#include <map>
+#include <string>
+
+typedef std::map<int, std::string> midimap_t;
+typedef std::map<std::string, int> instrmap_t;
+
+class MidiMapper {
+public:
+ void clear();
+
+ int lookup(int note);
+
+ instrmap_t instrmap;
+ midimap_t midimap;
+};
+
+#endif/*__DRUMGIZMO_MIDIMAPPER_H__*/
diff --git a/src/mutex.cc b/src/mutex.cc
new file mode 100644
index 0000000..22d59a6
--- /dev/null
+++ b/src/mutex.cc
@@ -0,0 +1,155 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set et sw=2 ts=2: */
+/***************************************************************************
+ * mutex.cc
+ *
+ * Thu Nov 12 10:51:32 CET 2009
+ * Copyright 2009 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of Pracro.
+ *
+ * Pracro is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Pracro is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Pracro; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "mutex.h"
+
+#ifdef WIN32
+#include <windows.h>
+#else
+#include <pthread.h>
+#endif
+
+struct mutex_private_t {
+#ifdef WIN32
+ HANDLE mutex;
+#else
+ pthread_mutex_t mutex;
+#endif
+};
+
+Mutex::Mutex()
+{
+ prv = new struct mutex_private_t();
+#ifdef WIN32
+ prv->mutex = CreateMutex(NULL, // default security attributes
+ FALSE, // initially not owned
+ NULL); // unnamed mutex
+#else
+ pthread_mutex_init (&prv->mutex, NULL);
+#endif
+}
+
+Mutex::~Mutex()
+{
+#ifdef WIN32
+ CloseHandle(prv->mutex);
+#else
+ pthread_mutex_destroy(&prv->mutex);
+#endif
+
+ if(prv) delete prv;
+}
+
+void Mutex::lock()
+{
+#ifdef WIN32
+ WaitForSingleObject(prv->mutex, // handle to mutex
+ INFINITE); // no time-out interval
+#else
+ pthread_mutex_lock(&prv->mutex);
+#endif
+}
+
+void Mutex::unlock()
+{
+#ifdef WIN32
+ ReleaseMutex(prv->mutex);
+#else
+ pthread_mutex_unlock(&prv->mutex);
+#endif
+}
+
+MutexAutolock::MutexAutolock(Mutex &m)
+ : mutex(m)
+{
+ mutex.lock();
+}
+
+MutexAutolock::~MutexAutolock()
+{
+ mutex.unlock();
+}
+
+#ifdef TEST_MUTEX
+//deps:
+//cflags: $(PTHREAD_CFLAGS)
+//libs: $(PTHREAD_LIBS)
+#include <test.h>
+
+#include <unistd.h>
+
+volatile int cnt = 0;
+
+static void* thread_run(void *data)
+{
+ Mutex *mutex = (Mutex*)data;
+ mutex->lock();
+ cnt++;
+ mutex->unlock();
+ return NULL;
+}
+
+TEST_BEGIN;
+
+Mutex mutex;
+
+mutex.lock();
+TEST_FALSE(mutex.trylock(), "Testing if trylock works negative.");
+mutex.unlock();
+TEST_TRUE(mutex.trylock(), "Testing if trylock works positive.");
+mutex.unlock();
+
+mutex.lock();
+
+pthread_attr_t attr;
+pthread_t tid;
+pthread_attr_init(&attr);
+pthread_create(&tid, &attr, thread_run, &mutex);
+
+sleep(1);
+TEST_EQUAL_INT(cnt, 0, "Testing if lock prevent cnt from increasing.");
+mutex.unlock();
+
+sleep(1);
+TEST_EQUAL_INT(cnt, 1, "Testing if unlock makes cnt increase.");
+
+pthread_join(tid, NULL);
+pthread_attr_destroy(&attr);
+
+{
+ TEST_TRUE(mutex.trylock(), "Testing if autolock has not yet locked the mutex.");
+ mutex.unlock();
+ MutexAutolock mlock(mutex);
+ TEST_FALSE(mutex.trylock(), "Testing if autolock worked.");
+}
+
+TEST_TRUE(mutex.trylock(), "Testing if autolock has released the lock on the mutex.");
+mutex.unlock();
+
+TEST_END;
+
+#endif/*TEST_MUTEX*/
diff --git a/src/mutex.h b/src/mutex.h
new file mode 100644
index 0000000..11704d4
--- /dev/null
+++ b/src/mutex.h
@@ -0,0 +1,55 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set et sw=2 ts=2: */
+/***************************************************************************
+ * mutex.h
+ *
+ * Thu Nov 12 10:51:32 CET 2009
+ * Copyright 2009 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of Pracro.
+ *
+ * Pracro is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Pracro is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Pracro; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __PRACRO_MUTEX_H__
+#define __PRACRO_MUTEX_H__
+
+struct mutex_private_t;
+
+class Mutex {
+public:
+ Mutex();
+ ~Mutex();
+
+ bool trylock();
+ void lock();
+ void unlock();
+
+private:
+ struct mutex_private_t* prv;
+};
+
+class MutexAutolock {
+public:
+ MutexAutolock(Mutex &mutex);
+ ~MutexAutolock();
+
+private:
+ Mutex &mutex;
+};
+
+#endif/*__PRACRO_MUTEX_H__*/
diff --git a/src/nolocale.h b/src/nolocale.h
new file mode 100644
index 0000000..816dd9c
--- /dev/null
+++ b/src/nolocale.h
@@ -0,0 +1,78 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * nolocale.h
+ *
+ * Fri Feb 13 12:48:10 CET 2015
+ * Copyright 2015 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_NOLOCALE_H__
+#define __DRUMGIZMO_NOLOCALE_H__
+
+#include <locale.h>
+#include <stdarg.h>
+
+static inline double atof_nol(const char *nptr)
+{
+ double res;
+
+ const char *locale = setlocale(LC_NUMERIC, "C");
+
+ res = atof(nptr);
+
+ setlocale(LC_NUMERIC, locale);
+
+ return res;
+}
+
+static inline int sprintf_nol(char *str, const char *format, ...)
+{
+ int ret;
+
+ const char *locale = setlocale(LC_NUMERIC, "C");
+
+ va_list vl;
+ va_start(vl, format);
+ ret = vsprintf(str, format, vl);
+ va_end(vl);
+
+ setlocale(LC_NUMERIC, locale);
+
+ return ret;
+}
+
+static inline int snprintf_nol(char *str, size_t size, const char *format, ...)
+{
+ int ret;
+
+ const char *locale = setlocale(LC_NUMERIC, "C");
+
+ va_list vl;
+ va_start(vl, format);
+ ret = vsnprintf(str, size, format, vl);
+ va_end(vl);
+
+ setlocale(LC_NUMERIC, locale);
+
+ return ret;
+}
+
+#endif/*__DRUMGIZMO_NOLOCALE_H__*/
diff --git a/src/output_lv2.cc b/src/output_lv2.cc
new file mode 100644
index 0000000..09999cb
--- /dev/null
+++ b/src/output_lv2.cc
@@ -0,0 +1,82 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * output_lv2.cc
+ *
+ * Wed Jul 13 14:27:06 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "output_lv2.h"
+
+#include <string.h>
+
+OutputLV2::OutputLV2()
+{
+ for(size_t i = 0; i < NUM_OUTPUTS; i++) {
+ outputPorts[i].size = 0;
+ outputPorts[i].samples = NULL;
+ }
+}
+
+OutputLV2::~OutputLV2()
+{
+}
+
+bool OutputLV2::init(Channels channels)
+{
+ return true;
+}
+
+void OutputLV2::setParm(std::string parm, std::string value)
+{
+}
+
+bool OutputLV2::start()
+{
+ return true;
+}
+
+void OutputLV2::stop()
+{
+}
+
+void OutputLV2::pre(size_t nsamples)
+{
+}
+
+void OutputLV2::run(int ch, sample_t *samples, size_t nsamples)
+{
+ if(ch < NUM_OUTPUTS) {
+ if(outputPorts[ch].samples) {
+ memcpy(outputPorts[ch].samples, samples, nsamples * sizeof(sample_t));
+ }
+ }
+}
+
+void OutputLV2::post(size_t nsamples)
+{
+}
+
+sample_t *OutputLV2::getBuffer(int ch)
+{
+ if(ch < NUM_OUTPUTS) return outputPorts[ch].samples;
+ return NULL;
+}
diff --git a/src/output_lv2.h b/src/output_lv2.h
new file mode 100644
index 0000000..a3a2555
--- /dev/null
+++ b/src/output_lv2.h
@@ -0,0 +1,61 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * output_lv2.h
+ *
+ * Wed Jul 13 14:27:06 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_OUTPUT_LV2_H__
+#define __DRUMGIZMO_OUTPUT_LV2_H__
+
+#include <audiooutputengine.h>
+
+#define NUM_OUTPUTS 64
+
+class OutputPort {
+public:
+ size_t size;
+ sample_t *samples;
+};
+
+class OutputLV2 : public AudioOutputEngine {
+public:
+ OutputLV2();
+ ~OutputLV2();
+
+ bool init(Channels channels);
+
+ void setParm(std::string parm, std::string value);
+
+ bool start();
+ void stop();
+
+ void pre(size_t nsamples);
+ void run(int ch, sample_t *samples, size_t nsamples);
+ void post(size_t nsamples);
+
+ sample_t *getBuffer(int c);
+
+ OutputPort outputPorts[NUM_OUTPUTS];
+};
+
+#endif/*__DRUMGIZMO_OUTPUT_LV2_H__*/
diff --git a/src/path.cc b/src/path.cc
new file mode 100644
index 0000000..1b4ede3
--- /dev/null
+++ b/src/path.cc
@@ -0,0 +1,51 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * path.cc
+ *
+ * Tue May 3 14:42:47 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "path.h"
+
+#ifndef __MINGW32__
+#include <libgen.h>
+#endif/*__MINGW32__*/
+
+#include <string.h>
+#include <stdlib.h>
+
+std::string getPath(std::string file)
+{
+ std::string p;
+#ifndef __MINGW32__
+ char *b = strdup(file.c_str());
+ p = dirname(b);
+ free(b);
+#else
+ char drive[_MAX_DRIVE];
+ char dir[_MAX_DIR];
+ _splitpath(file.c_str(), drive, dir, NULL, NULL);
+ p = std::string(drive) + dir;
+#endif
+
+ return p;
+}
diff --git a/src/path.h b/src/path.h
new file mode 100644
index 0000000..bdad0a5
--- /dev/null
+++ b/src/path.h
@@ -0,0 +1,34 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * path.h
+ *
+ * Tue May 3 14:42:46 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_PATH_H__
+#define __DRUMGIZMO_PATH_H__
+
+#include <string>
+
+std::string getPath(std::string file);
+
+#endif/*__DRUMGIZMO_PATH_H__*/
diff --git a/src/saxparser.cc b/src/saxparser.cc
new file mode 100644
index 0000000..1bd98a8
--- /dev/null
+++ b/src/saxparser.cc
@@ -0,0 +1,135 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * saxparser.cc
+ *
+ * Tue Jul 22 16:26:22 CEST 2008
+ * Copyright 2008 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "saxparser.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <hugin.hpp>
+
+static void character_hndl(void *p, const XML_Char *s, int len)
+{
+ SAXParser *parser = (SAXParser*)XML_GetUserData(p);
+ std::string chars;
+ chars.append(s, len);
+ parser->characterData(chars);
+}
+
+static void start_hndl(void *p, const char *el, const char **attr)
+{
+ SAXParser *parser = (SAXParser*)XML_GetUserData(p);
+
+ // Convert to comfy C++ values...
+ std::string name = el;
+ std::map< std::string, std::string > attributes;
+
+ while(*attr) {
+ std::string at_name = *attr;
+ attr++;
+ std::string at_value = *attr;
+ attr++;
+
+ attributes.insert(make_pair(at_name, at_value));
+ }
+
+ parser->startTag(name, attributes);
+}
+
+static void end_hndl(void *p, const char *el)
+{
+ SAXParser *parser = (SAXParser*)XML_GetUserData(p);
+ std::string name = el;
+ parser->endTag(name);
+}
+
+
+SAXParser::SAXParser()
+{
+ p = XML_ParserCreate(NULL);
+ if(!p) {
+ fprintf(stderr, "Couldn't allocate memory for parser\n");
+ // throw Exception(...);
+ return;
+ }
+
+ XML_SetUserData(p, this);
+ XML_UseParserAsHandlerArg(p);
+ XML_SetElementHandler(p, start_hndl, end_hndl);
+ XML_SetCharacterDataHandler(p, character_hndl);
+}
+
+SAXParser::~SAXParser()
+{
+ XML_ParserFree(p);
+}
+
+int SAXParser::parse()
+{
+ DEBUG(sax, "parse()\n");
+
+ char buf[32];
+ int len;
+
+ do {
+ len = readData(buf, sizeof(buf) - 1);
+ if(len == -1) {
+ parseError((char*)"", 0, "Could not read data", 0);
+ return 1;
+ }
+ if(!XML_Parse(p, buf, len, len == 0)) {
+ parseError(buf, len, XML_ErrorString(XML_GetErrorCode(p)),
+ (int)XML_GetCurrentLineNumber(p));
+ return 1;
+ }
+
+ memset(buf, 0, sizeof(buf));
+ } while(len);
+
+ return 0;
+}
+
+int SAXParser::parse(std::string buffer)
+{
+ DEBUG(sax, "parse(buffer %d bytes)\n", (int)buffer.length());
+
+ if(!XML_Parse(p, buffer.c_str(), buffer.length(), true)) {
+ parseError((char*)buffer.c_str(), buffer.length(),
+ XML_ErrorString(XML_GetErrorCode(p)),
+ (int)XML_GetCurrentLineNumber(p));
+ return 1;
+ }
+
+ return 0;
+}
+
+void SAXParser::parseError(char *buf, size_t len, std::string error, int lineno)
+{
+ fprintf(stderr, "SAXParser error at line %d: %s\n", lineno, error.c_str());
+ fprintf(stderr, "\tBuffer %u bytes: [", (int)len);
+ if(fwrite(buf, len, 1, stderr) != len) {}
+ fprintf(stderr, "]\n");
+ fflush(stderr);
+}
diff --git a/src/saxparser.h b/src/saxparser.h
new file mode 100644
index 0000000..aff90d7
--- /dev/null
+++ b/src/saxparser.h
@@ -0,0 +1,57 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * saxparser.h
+ *
+ * Tue Jul 22 16:26:21 CEST 2008
+ * Copyright 2008 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __DRUMGIZMO_SAXPARSER_H__
+#define __DRUMGIZMO_SAXPARSER_H__
+
+#include <string>
+#include <map>
+#include <expat.h>
+
+typedef std::map< std::string, std::string> attr_t;
+
+class SAXParser {
+public:
+ SAXParser();
+ virtual ~SAXParser();
+
+ int parse();
+ int parse(std::string buffer);
+
+ virtual void characterData(std::string &data) {}
+ virtual void startTag(std::string name, attr_t attr) {}
+ virtual void endTag(std::string name) {}
+
+ virtual void parseError(char *buf, size_t len, std::string error, int lineno);
+
+protected:
+ virtual int readData(char *data, size_t size) { return 0; }
+
+private:
+ XML_Parser p;
+};
+
+#endif/*__DRUMGIZMO_SAXPARSER_H__*/
diff --git a/src/semaphore.cc b/src/semaphore.cc
new file mode 100644
index 0000000..47ce8e0
--- /dev/null
+++ b/src/semaphore.cc
@@ -0,0 +1,111 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * semaphore.cc
+ *
+ * Sat Oct 8 17:44:13 CEST 2005
+ * Copyright 2005 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of Pracro.
+ *
+ * Pracro is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Pracro is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Pracro; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "semaphore.h"
+
+#include <hugin.hpp>
+
+#ifdef WIN32
+#include <windows.h>
+#else
+// Make sure we don't include /this/ file...
+#include <../include/semaphore.h>
+#endif
+
+struct semaphore_private_t {
+#ifdef WIN32
+ HANDLE semaphore;
+#else
+ sem_t semaphore;
+#endif
+};
+
+Semaphore::Semaphore(const char *name)
+{
+ this->name = name;
+ DEBUG(semaphore, "Create [%s]\n", name);
+
+ prv = new struct semaphore_private_t();
+
+#ifdef WIN32
+ prv->semaphore = CreateSemaphore(NULL, // default security attributes
+ 0, // initial count
+ 2147483647, // maximum count (Max LONG)
+ NULL); // unnamed semaphore
+#else
+ sem_init(&prv->semaphore, 0, 0);
+#endif
+}
+
+Semaphore::~Semaphore()
+{
+ DEBUG(semaphore, "Delete [%s]\n", name);
+
+#ifdef WIN32
+ CloseHandle(prv->semaphore);
+#else
+ sem_destroy(&prv->semaphore);
+#endif
+
+ if(prv) delete prv;
+}
+
+void Semaphore::post()
+{
+ DEBUG(semaphore, "Post [%s]\n", name);
+
+#ifdef WIN32
+ ReleaseSemaphore(prv->semaphore, 1, NULL);
+#else
+ sem_post(&prv->semaphore);
+#endif
+}
+
+void Semaphore::wait()
+{
+ DEBUG(semaphore, "Wait [%s]\n", name);
+
+#ifdef WIN32
+ WaitForSingleObject(prv->semaphore, INFINITE);
+#else
+ sem_wait(&prv->semaphore);
+#endif
+}
+
+#ifdef TEST_SEMAPHORE
+//deps:
+//cflags: -I.. $(PTHREAD_CFLAGS)
+//libs: $(PTHREAD_LIBS)
+#include <test.h>
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+TEST_TRUE(false, "No tests yet!");
+
+TEST_END;
+
+#endif/*TEST_SEMAPHORE*/
diff --git a/src/semaphore.h b/src/semaphore.h
new file mode 100644
index 0000000..7e39f5a
--- /dev/null
+++ b/src/semaphore.h
@@ -0,0 +1,45 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * semaphore.h
+ *
+ * Sat Oct 8 17:44:13 CEST 2005
+ * Copyright 2005 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of Pracro.
+ *
+ * Pracro is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Pracro is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Pracro; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __PRACRO_SEMAPHORE_H__
+#define __PRACRO_SEMAPHORE_H__
+
+struct semaphore_private_t;
+
+class Semaphore {
+public:
+ Semaphore(const char *name = "");
+ ~Semaphore();
+
+ void post();
+ void wait();
+
+private:
+ struct semaphore_private_t *prv;
+ const char *name;
+};
+
+#endif/*__PRACRO_SEMAPHORE_H__*/
diff --git a/src/thread.cc b/src/thread.cc
new file mode 100644
index 0000000..6e216e9
--- /dev/null
+++ b/src/thread.cc
@@ -0,0 +1,68 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * thread.cc
+ *
+ * Tue Jan 24 08:11:37 CET 2012
+ * Copyright 2012 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "thread.h"
+
+#include <stdio.h>
+#include <hugin.hpp>
+
+Thread::Thread()
+{}
+
+Thread::~Thread()
+{}
+
+void Thread::run()
+{
+ DEBUG(thread, "Thread::run()\n");
+#ifdef WIN32
+ tid = CreateThread(NULL, 0, thread_run, this, 0, NULL);
+#else
+ pthread_create(&tid, NULL, thread_run, this);
+#endif/*WIN32*/
+}
+
+void Thread::wait_stop()
+{
+#ifdef WIN32
+ WaitForSingleObject(tid, INFINITE);
+#else
+ pthread_join(tid, NULL);
+#endif/*WIN32*/
+}
+
+#ifdef WIN32
+DWORD WINAPI
+#else
+void*
+#endif/*WIN32*/
+Thread::thread_run(void *data)
+{
+ DEBUG(thread, "Thread run\n");
+ Thread *t = (Thread*)data;
+ t->thread_main();
+ return 0;
+}
diff --git a/src/thread.h b/src/thread.h
new file mode 100644
index 0000000..f2c1dd0
--- /dev/null
+++ b/src/thread.h
@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * thread.h
+ *
+ * Tue Jan 24 08:11:37 CET 2012
+ * Copyright 2012 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#pragma once
+
+#ifdef WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#else
+#include <pthread.h>
+#endif/*WIN32*/
+
+class Thread {
+public:
+ Thread();
+ virtual ~Thread();
+
+ void run();
+ void wait_stop();
+
+protected:
+ virtual void thread_main() = 0;
+
+private:
+#ifdef WIN32
+ HANDLE tid;
+ static DWORD WINAPI
+#else
+ pthread_t tid;
+ static void*
+#endif/*WIN32*/
+ thread_run(void *data);
+};
diff --git a/src/versionstr.cc b/src/versionstr.cc
new file mode 100644
index 0000000..90557f6
--- /dev/null
+++ b/src/versionstr.cc
@@ -0,0 +1,151 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set et sw=2 ts=2: */
+/***************************************************************************
+ * versionstr.cc
+ *
+ * Wed Jul 22 11:41:32 CEST 2009
+ * Copyright 2009 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "versionstr.h"
+
+#include <memory.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+// Workaround - major, minor and patch are defined as macros when using _GNU_SOURCES
+#ifdef major
+#undef major
+#endif
+#ifdef minor
+#undef minor
+#endif
+#ifdef patch
+#undef patch
+#endif
+
+VersionStr::VersionStr(std::string v) throw(const char *)
+{
+ memset(version, 0, sizeof(version));
+ set(v);
+}
+
+VersionStr::VersionStr(size_t major, size_t minor, size_t patch)
+{
+ version[0] = major;
+ version[1] = minor;
+ version[2] = patch;
+}
+
+void VersionStr::set(std::string v) throw(const char *)
+{
+ std::string num;
+ size_t idx = 0;
+ for(size_t i = 0; i < v.length(); i++) {
+ if(v[i] == '.') {
+ if(idx > 2) throw "Version string is too long.";
+ version[idx] = atoi(num.c_str());
+ idx++;
+ num = "";
+ } else if(v[i] >= '0' && v[i] <= '9') {
+ num.append(1, v[i]);
+ } else {
+ throw "Version string contains illegal character.";
+ }
+ }
+ if(idx > 2) throw "Version string is too long.";
+ version[idx] = atoi(num.c_str());
+}
+
+VersionStr::operator std::string() const
+{
+ std::string v;
+ char buf[64];
+ if(patch()) {
+ sprintf(buf, "%d.%d.%d", (int)major(), (int)minor(), (int)patch());
+ } else {
+ sprintf(buf, "%d.%d", (int)major(), (int)minor());
+ }
+ v = buf;
+ return v;
+}
+
+void VersionStr::operator=(std::string v) throw(const char *)
+{
+ set(v);
+}
+
+// return a - b simplified as -1, 0 or 1
+static int vdiff(const VersionStr &a, const VersionStr &b)
+{
+ if(a.major() < b.major()) return -1;
+ if(a.major() > b.major()) return 1;
+ if(a.minor() < b.minor()) return -1;
+ if(a.minor() > b.minor()) return 1;
+ if(a.patch() < b.patch()) return -1;
+ if(a.patch() > b.patch()) return 1;
+ return 0;
+}
+
+bool VersionStr::operator<(const VersionStr &other) const
+{
+ if(vdiff(*this, other) == -1) return true;
+ return false;
+}
+
+bool VersionStr::operator>(const VersionStr &other) const
+{
+ if(vdiff(*this, other) == 1) return true;
+ return false;
+}
+
+bool VersionStr::operator==(const VersionStr &other) const
+{
+ if(vdiff(*this, other) == 0) return true;
+ return false;
+}
+
+bool VersionStr::operator<=(const VersionStr &other) const
+{
+ if(vdiff(*this, other) != 1) return true;
+ return false;
+}
+
+bool VersionStr::operator>=(const VersionStr &other) const
+{
+ if(vdiff(*this, other) != -1) return true;
+ return false;
+}
+
+size_t VersionStr::major() const
+{
+ return version[0];
+}
+
+size_t VersionStr::minor() const
+{
+ return version[1];
+}
+
+size_t VersionStr::patch() const
+{
+ return version[2];
+}
diff --git a/src/versionstr.h b/src/versionstr.h
new file mode 100644
index 0000000..ecb1df3
--- /dev/null
+++ b/src/versionstr.h
@@ -0,0 +1,112 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set et sw=2 ts=2: */
+/***************************************************************************
+ * versionstr.h
+ *
+ * Wed Jul 22 11:41:32 CEST 2009
+ * Copyright 2009 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __PRACRO_VERSIONSTR_H__
+#define __PRACRO_VERSIONSTR_H__
+
+#include <string>
+
+// Workaround - major, minor and patch are defined as macros when using _GNU_SOURCES
+#ifdef major
+#undef major
+#endif
+#ifdef minor
+#undef minor
+#endif
+#ifdef patch
+#undef patch
+#endif
+
+/**
+ * VersionStr class.
+ * It hold a version number and is capable of correct sorting, as well as string
+ * conversion both ways.
+ */
+class VersionStr {
+public:
+ /**
+ * Constructor.
+ * Throws an exeption if the string does not parse.
+ * @param v A std::string containing a version string on the form a.b or a.b.c
+ */
+ VersionStr(std::string v) throw(const char *);
+
+ /**
+ * Constructor.
+ * @param major A size_t containing the major version number.
+ * @param minor A size_t containing the minor version number.
+ * @param patch A size_t containing the patch level.
+ */
+ VersionStr(size_t major = 0, size_t minor = 0, size_t patch = 0);
+
+ /**
+ * Typecast to std::string operator.
+ * It simply converts the version numbers into a string of the form major.minor
+ * (if patch i 0) or major.minor.patch
+ */
+ operator std::string() const;
+
+ /**
+ * Assignment from std::string operator.
+ * Same as in the VersionStr(std::string v) constructor.
+ * Throws an exeption if the string does not parse.
+ */
+ void operator=(std::string v) throw(const char *);
+
+ /**
+ * Comparison operator.
+ * The version objects are sorted according to their major, minor and patch
+ * level numbers.
+ */
+ bool operator<(const VersionStr &other) const;
+ bool operator==(const VersionStr &other) const;
+ bool operator>(const VersionStr &other) const;
+ bool operator>=(const VersionStr &other) const;
+ bool operator<=(const VersionStr &other) const;
+
+
+ /**
+ * @return Major version number.
+ */
+ size_t major() const;
+
+ /**
+ * @return Minor version number.
+ */
+ size_t minor() const;
+
+ /**
+ * @return Patch level.
+ */
+ size_t patch() const;
+
+private:
+ void set(std::string v) throw(const char *);
+ size_t version[3];
+};
+
+#endif/*__PRACRO_VERSIONSTR_H__*/
diff --git a/tools/Makefile.am b/tools/Makefile.am
new file mode 100644
index 0000000..9891676
--- /dev/null
+++ b/tools/Makefile.am
@@ -0,0 +1,2 @@
+EXTRA_DIST = \
+ add_file \ No newline at end of file
diff --git a/tools/add_file b/tools/add_file
new file mode 100755
index 0000000..f1a5eb2
--- /dev/null
+++ b/tools/add_file
@@ -0,0 +1,74 @@
+#!/bin/bash
+PROJECT="CamSync"
+
+function allfile() {
+ echo "/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */" > $1;
+ echo "/***************************************************************************" >> $1;
+ echo " * $1" >> $1;
+ echo " *" >> $1 ;
+ echo " * `date`" >> $1;
+ echo -n " * Copyright " >> $1
+ echo -n `date +%Y | xargs` >> $1
+ if [ "$USER" == "nemo" ];
+ then
+ echo " Jonas Suhr Christensen" >> $1;
+ echo " * jsc@umbraculum.org" >> $1;
+ fi
+ if [ "$USER" == "deva" ];
+ then
+ echo " Bent Bisballe Nyeng" >> $1;
+ echo " * deva@aasimon.org" >> $1;
+ fi
+ if [ "$USER" == "senator" ];
+ then
+ echo " Lars Bisballe Jensen" >> $1;
+ echo " * elsenator@gmail.com" >> $1;
+ fi
+ echo " ****************************************************************************/" >> $1;
+ echo "" >> $1;
+ echo "/*" >> $1;
+ echo " * This file is part of $PROJECT." >> $1;
+ echo " *" >> $1;
+ echo " * $PROJECT is free software; you can redistribute it and/or modify" >> $1;
+ echo " * it under the terms of the GNU General Public License as published by" >> $1;
+ echo " * the Free Software Foundation; either version 2 of the License, or" >> $1;
+ echo " * (at your option) any later version." >> $1;
+ echo " *" >> $1;
+ echo " * $PROJECT is distributed in the hope that it will be useful," >> $1;
+ echo " * but WITHOUT ANY WARRANTY; without even the implied warranty of" >> $1;
+ echo " * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the" >> $1;
+ echo " * GNU General Public License for more details." >> $1;
+ echo " *" >> $1;
+ echo " * You should have received a copy of the GNU General Public License" >> $1;
+ echo " * along with $PROJECT; if not, write to the Free Software" >> $1;
+ echo " * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA." >> $1;
+ echo " */" >> $1;
+}
+
+function ccfile() {
+ local hf=`echo -n $1 | cut -d'.' -f1`.h;
+ hfile $hf;
+
+ allfile $1;
+ echo -n '#include "' >> $1;
+ echo -n $hf >> $1;
+ echo '"' >> $1;
+ echo '' >> $1;
+}
+
+function hfile() {
+ allfile $1;
+ local hn=`echo $1 | tr 'a-z.' 'A-Z_'`
+ local pr=`echo $PROJECT | tr 'a-z.' 'A-Z_'`
+ echo "#pragma once" >> $1;
+}
+
+if [ "$#" = "1" ]; then
+if [ "CC" = `echo $1 | cut -d'.' -f2 | tr 'a-z' 'A-Z'` ]; then
+ ccfile $1;
+fi;
+if [ "H" = `echo $1 | cut -d'.' -f2 | tr 'a-z' 'A-Z'` ]; then
+ hfile $1;
+fi;
+else echo "Usage: $0 filename";
+fi;
diff --git a/version.h b/version.h
new file mode 100644
index 0000000..f6d5abe
--- /dev/null
+++ b/version.h
@@ -0,0 +1 @@
+#define VERSION "0.0.1"