MAJOR rewrite of the internals. New input/output 'plugin' system. Still a lot missing.

1 files changed, 106 insertions, 0 deletions

diff --git a/src/audiooutputenginejack.cc b/src/audiooutputenginejack.cc
new file mode 100644
index 0000000..f29404d
--- /dev/null
+++ b/src/audiooutputenginejack.cc
@@ -0,0 +1,106 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            audiooutputenginejack.cc
+ *
+ *  Thu Sep 16 10:28:37 CEST 2010
+ *  Copyright 2010 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 "audiooutputenginejack.h"
+
+#include <string.h>
+#include "drumgizmo.h"
+
+extern "C" {
+  static int _wrap_jack_process(jack_nframes_t nframes, void *arg){
+    return ((AudioOutputEngineJack*)arg)->process(nframes);}
+}
+
+AudioOutputEngineJack::AudioOutputEngineJack()
+{
+	jack_status_t status;
+
+	jack_client = jack_client_open("DrumGizmo", JackNullOption, &status);
+  jack_set_process_callback(jack_client, _wrap_jack_process, this);
+}
+
+AudioOutputEngineJack::~AudioOutputEngineJack()
+{
+	jack_client_close(jack_client);
+}
+
+bool AudioOutputEngineJack::init(Channels *channels)
+{
+  this->channels = channels;
+
+  Channels::iterator i = channels->begin();
+  while(i != channels->end()) {
+
+    jack_port_t *port =
+      jack_port_register(jack_client,
+                         i->name.c_str(),
+                         JACK_DEFAULT_AUDIO_TYPE,
+                         JackPortIsOutput | JackPortIsTerminal,
+                         0);
+
+    output_ports.push_back(port);
+    i->num = output_ports.size() - 1;
+
+    i++;
+  }
+
+  return true;
+}
+
+void AudioOutputEngineJack::run(DrumGizmo *drumgizmo)
+{
+  gizmo = drumgizmo;
+
+  jack_activate(jack_client);
+
+  jack_connect(jack_client, "DrumGizmo:port0", "system:playback_1");
+  jack_connect(jack_client, "DrumGizmo:port1", "system:playback_2");
+
+  while(drumgizmo->isRunning()) {
+    sleep(1);
+  }
+}
+
+int AudioOutputEngineJack::process(jack_nframes_t nframes)
+{
+  gizmo->pre(nframes);
+
+  Channels::iterator i = channels->begin();
+  while(i != channels->end()) {
+    jack_port_t *port = output_ports[i->num];
+    jack_default_audio_sample_t *buffer;
+    buffer = (jack_default_audio_sample_t *)jack_port_get_buffer(port, nframes);
+    
+    memset(buffer, 0, nframes * sizeof(sample_t));
+    gizmo->getSamples(&(*i), buffer, nframes);
+    
+    i++;
+  }
+
+  gizmo->post(nframes);
+
+  return 0;
+}