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authordeva <deva>2011-03-01 19:19:02 +0000
committerdeva <deva>2011-03-01 19:19:02 +0000
commite190d38057892b69246391841b234a368bc2b4ad (patch)
tree34f946bc1c3b86997d4cd45e63c433ef07b36486 /src/audiooutputenginejack.cc
parentc393edc920f8ee126d1bced3500b6bc1ecf86f83 (diff)
MAJOR rewrite of the internals. New input/output 'plugin' system. Still a lot missing.
Diffstat (limited to 'src/audiooutputenginejack.cc')
-rw-r--r--src/audiooutputenginejack.cc106
1 files changed, 106 insertions, 0 deletions
diff --git a/src/audiooutputenginejack.cc b/src/audiooutputenginejack.cc
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+/* -*- 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;
+}