From e190d38057892b69246391841b234a368bc2b4ad Mon Sep 17 00:00:00 2001
From: deva <deva>
Date: Tue, 1 Mar 2011 19:19:02 +0000
Subject: MAJOR rewrite of the internals. New input/output 'plugin' system.
 Still a lot missing.

---
 src/audioinputenginejackmidi.cc | 116 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 src/audioinputenginejackmidi.cc

(limited to 'src/audioinputenginejackmidi.cc')

diff --git a/src/audioinputenginejackmidi.cc b/src/audioinputenginejackmidi.cc
new file mode 100644
index 0000000..49bfde4
--- /dev/null
+++ b/src/audioinputenginejackmidi.cc
@@ -0,0 +1,116 @@
+/* -*- 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
+
+extern "C" {
+  static int _wrap_jack_process(jack_nframes_t nframes, void *arg){
+    return ((AudioInputEngineJackMidi*)arg)->process(nframes);}
+}
+
+AudioInputEngineJackMidi::AudioInputEngineJackMidi()
+{
+  pos = 0;
+}
+
+AudioInputEngineJackMidi::~AudioInputEngineJackMidi()
+{
+  //  wait_stop();
+  jack_client_close(jack_client);
+}
+
+int AudioInputEngineJackMidi::process(jack_nframes_t nframes)
+{
+  //  printf("               jk: %d\n", pos);
+
+  void *midibuffer = jack_port_get_buffer(midi_port, nframes);
+
+  jack_nframes_t midievents = jack_midi_get_event_count(midibuffer);
+  //  if(midievents) printf("#%d\n", midievents);
+  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];
+    
+    //if(velocity == 0) continue;
+    
+    printf("Event key:%d vel:%d\n", key, velocity);
+    Event *evt = new EventSine(0, key * 10, (float)velocity / 127.0, 1000);
+    eventqueue->post(evt, pos + event.time);
+  }
+  
+  jack_midi_clear_buffer(midibuffer);
+    
+  pos += nframes;
+
+  return 0;
+}
+
+bool AudioInputEngineJackMidi::init(EventQueue *e)
+{
+  eventqueue = e;
+
+	jack_status_t status;
+
+	jack_client = jack_client_open("DrumGizmo", JackNullOption, &status);
+
+	midi_port = jack_port_register(jack_client,
+                                 "drumgizmo_midiin",
+                                 JACK_DEFAULT_MIDI_TYPE,
+                                 JackPortIsInput,// | JackPortIsTerminal,
+                                 0);
+
+  jack_set_process_callback(jack_client, _wrap_jack_process, this);
+
+  jack_activate(jack_client);
+
+  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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