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-rw-r--r--drumgizmo/output/jackaudio/jackaudio.cc206
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * jackaudio.cc
+ *
+ * Sat Apr 30 21:11:54 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 <stdlib.h>
+
+#include <string>
+#include <audiotypes.h>
+
+#define NOTE_ON 0x90
+
+#include "../../jackclient.h"
+#include <stdio.h>
+
+class JackAudio : public JackProcess {
+public:
+ JackAudio();
+ ~JackAudio();
+ bool init(int channels, char *cnames[]);
+
+ void setParm(std::string parm, std::string value);
+
+ bool start();
+ void stop();
+
+ void pre(size_t size);
+ void run(int channel, sample_t* data, size_t size);
+ void post(size_t size);
+
+ void jack_process(jack_nframes_t nframes);
+
+private:
+ JackClient *jackclient;
+ jack_port_t *output_port[64];
+ size_t nchannels;
+ sample_t **channels;
+};
+
+JackAudio::JackAudio()
+{
+}
+
+JackAudio::~JackAudio()
+{
+}
+
+bool JackAudio::init(int nchannels, char *cnames[])
+{
+ this->nchannels = nchannels;
+ channels = (sample_t**)malloc(nchannels * sizeof(sample_t*));
+
+ for(int i = 0; i < nchannels; i++) {
+ char buf[32];
+ sprintf(buf, "%d", i + 1);
+ std::string name;
+ name += buf;
+ name += "-";
+ name += cnames[i];
+ output_port[i] = jack_port_register(jackclient->jack_client,
+ name.c_str(),
+ JACK_DEFAULT_AUDIO_TYPE,
+ JackPortIsOutput, 0);
+ channels[i] = (sample_t*)malloc(2048 * sizeof(sample_t));
+ }
+ return true;
+}
+
+void JackAudio::setParm(std::string parm, std::string value)
+{
+ if(parm == "jack_client") {
+ sscanf(value.c_str(), "%p", &jackclient);
+ if(jackclient) jackclient->addJackProcess(this);
+ }
+}
+
+bool JackAudio::start()
+{
+ return true;
+}
+
+void JackAudio::stop()
+{
+}
+
+void JackAudio::pre(size_t size)
+{
+}
+
+void JackAudio::run(int channel, sample_t* data, size_t size)
+{
+ // Copy engine data to ringbuffer.
+ for(int i = 0; i < size; i++) {
+ channels[channel][i] = data[i];
+ }
+}
+
+void JackAudio::post(size_t size)
+{
+}
+
+void JackAudio::jack_process(jack_nframes_t nframes)
+{
+ printf("o"); fflush(stdout);
+ for(int c = 0; c < nchannels; c++) {
+ jack_default_audio_sample_t *out =
+ (jack_default_audio_sample_t *) jack_port_get_buffer(output_port[c],
+ nframes);
+ for(int i = 0; i < nframes; i++) {
+ out[i] = channels[c][i];
+ }
+ }
+}
+
+extern "C" {
+ void *create()
+ {
+ return new JackAudio();
+ }
+
+ void destroy(void *h)
+ {
+ JackAudio *jack = (JackAudio*)h;
+ delete jack;
+ }
+
+ bool init(void *h, int cs, char *cnames[])
+ {
+ JackAudio *jack = (JackAudio*)h;
+ return jack->init(cs, cnames);
+ }
+
+ void setparm(void *h, const char *parm, const char *value)
+ {
+ JackAudio *jack = (JackAudio*)h;
+ jack->setParm(parm, value);
+ }
+
+ bool start(void *h)
+ {
+ JackAudio *jack = (JackAudio*)h;
+ return jack->start();
+ }
+
+ void stop(void *h)
+ {
+ JackAudio *jack = (JackAudio*)h;
+ jack->stop();
+ }
+
+ void pre(void *h, size_t s)
+ {
+ JackAudio *jack = (JackAudio*)h;
+ jack->pre(s);
+ }
+
+ void run(void *h, int ch, sample_t *data, size_t size)
+ {
+ JackAudio *jack = (JackAudio*)h;
+ jack->run(ch, data, size);
+ }
+
+ void post(void *h, size_t s)
+ {
+ JackAudio *jack = (JackAudio*)h;
+ jack->post(s);
+ }
+}
+
+#ifdef TEST_AUDIOINPUTENGINEJACKAUDIO
+//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_AUDIOINPUTENGINEJACKAUDIO*/