Basic project based on DrumGizmo.

1 files changed, 117 insertions, 0 deletions

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()
+{
+}