From cd0e36773992e26985bdec1f7a5341f83fa3e521 Mon Sep 17 00:00:00 2001
From: deva <deva>
Date: Fri, 15 Jul 2011 13:02:33 +0000
Subject: New input/output plugin architecture. New LV2 plugin.

---
 .../input/jackmidi/audioinputenginejackmidi.cc     | 153 +++++++++++++++++++++
 1 file changed, 153 insertions(+)
 create mode 100644 drumgizmo/input/jackmidi/audioinputenginejackmidi.cc

(limited to 'drumgizmo/input/jackmidi/audioinputenginejackmidi.cc')

diff --git a/drumgizmo/input/jackmidi/audioinputenginejackmidi.cc b/drumgizmo/input/jackmidi/audioinputenginejackmidi.cc
new file mode 100644
index 0000000..5e1fb85
--- /dev/null
+++ b/drumgizmo/input/jackmidi/audioinputenginejackmidi.cc
@@ -0,0 +1,153 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            audioinputenginejackmidi.cc
+ *
+ *  Sun Feb 27 11:33:31 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 "audioinputenginejackmidi.h"
+
+#define NOTE_ON 0x90
+
+AudioInputEngineJackMidi::AudioInputEngineJackMidi()
+{
+  jackclient = init_jack_client();
+
+  jackclient->addJackProcess(this);
+
+  pos = 0;
+}
+
+AudioInputEngineJackMidi::~AudioInputEngineJackMidi()
+{
+  jackclient->removeJackProcess(this);
+  close_jack_client();
+}
+
+void AudioInputEngineJackMidi::jack_process(jack_nframes_t nframes)
+{
+  void *midibuffer = jack_port_get_buffer(midi_port, nframes);
+
+  jack_nframes_t midievents = jack_midi_get_event_count(midibuffer);
+
+  for(jack_nframes_t i = 0; i < midievents; i++) {
+    jack_midi_event_t event;
+    jack_midi_event_get(&event, midibuffer, i);
+    
+    if(event.size != 3) continue;
+    if((event.buffer[0] & NOTE_ON) != NOTE_ON) continue;
+    
+    int key = event.buffer[1];
+    int velocity = event.buffer[2];
+    
+    printf("Event key:%d vel:%d\n", key, velocity);
+    /*
+    if(kit->midimap.find(key) == kit->midimap.end()) {
+      printf("Missing note %d in midimap.\n", key);
+      continue;
+    }
+
+    std::string instr = kit->midimap[key];
+
+    if(kit->instruments.find(instr) == kit->instruments.end()) {
+      printf("Missing instrument %s.\n", instr.c_str());
+      continue;
+    }
+    */
+
+    Instrument *i = NULL;
+    int d = key % kit->instruments.size();
+    Instruments::iterator it = kit->instruments.begin();
+    while(d--) {
+      i = &(it->second);
+      it++;
+    }
+
+    if(i == NULL) {
+      continue;
+    }
+
+    //    Sample *s = i.sample((float)velocity/127.0);
+    Sample *s = i->sample(0.5);
+    
+    if(s == NULL) {
+      printf("Missing Sample.\n");
+      continue;
+    }
+
+    Channels::iterator j = kit->channels.begin();
+    while(j != kit->channels.end()) {
+      Channel &ch = *j;
+      AudioFile *af = s->getAudioFile(&ch);
+      if(af == NULL) {
+        printf("Missing AudioFile.\n");
+      } else {
+        printf("Adding event.\n");
+        Event *evt = new EventSample(ch.num, 1.0, af);
+        eventqueue->post(evt, pos + event.time + nframes);
+      }
+      j++;
+    }
+  }
+  
+  jack_midi_clear_buffer(midibuffer);
+    
+  pos += nframes;
+}
+
+bool AudioInputEngineJackMidi::init(EventQueue *e, DrumKit *dk)
+{
+  eventqueue = e;
+  kit = dk;
+
+	midi_port = jack_port_register(jackclient->jack_client,
+                                 "drumgizmo_midiin",
+                                 JACK_DEFAULT_MIDI_TYPE,
+                                 JackPortIsInput,// | JackPortIsTerminal,
+                                 0);
+
+  return true;
+}
+
+
+bool AudioInputEngineJackMidi::activate()
+{
+  jackclient->activate();
+  return true;
+}
+
+#ifdef TEST_AUDIOINPUTENGINEJACKMIDI
+//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_AUDIOINPUTENGINEJACKMIDI*/
-- 
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