nkeynes@657: /**
nkeynes@663:  * $Id$
nkeynes@657:  * 
nkeynes@657:  * The pulseaudio sound driver
nkeynes@657:  *
nkeynes@657:  * Copyright (c) 2005 Nathan Keynes.
nkeynes@657:  *
nkeynes@657:  * This program is free software; you can redistribute it and/or modify
nkeynes@657:  * it under the terms of the GNU General Public License as published by
nkeynes@657:  * the Free Software Foundation; either version 2 of the License, or
nkeynes@657:  * (at your option) any later version.
nkeynes@657:  *
nkeynes@657:  * This program is distributed in the hope that it will be useful,
nkeynes@657:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nkeynes@657:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nkeynes@657:  * GNU General Public License for more details.
nkeynes@657:  */
nkeynes@657: #include <stdio.h>
nkeynes@657: #include <unistd.h>
nkeynes@657: #include <pulse/simple.h>
nkeynes@657: #include "aica/audio.h"
nkeynes@657: #include "lxdream.h"
nkeynes@657: 
nkeynes@657: static pa_simple *pulse_server = NULL;
nkeynes@657: 
nkeynes@697: gboolean audio_init( )
nkeynes@657: {
nkeynes@697:     int rate = DEFAULT_SAMPLE_RATE;
nkeynes@697:     int format = DEFAULT_SAMPLE_FORMAT;
nkeynes@657:     pa_sample_spec ss;
nkeynes@657: 
nkeynes@657:     if( pulse_server != NULL ) {
nkeynes@657:         pa_simple_free(pulse_server);
nkeynes@657:     }
nkeynes@657:     ss.rate = rate;
nkeynes@657: 
nkeynes@657:     if( format & AUDIO_FMT_16BIT ) {
nkeynes@657:         ss.format = PA_SAMPLE_S16NE;
nkeynes@657:     } else {
nkeynes@657:         ss.format = PA_SAMPLE_U8;
nkeynes@657:     }
nkeynes@657:     
nkeynes@657:     if( format & AUDIO_FMT_STEREO ) {
nkeynes@657: 	ss.channels = 2;
nkeynes@657:     } else {
nkeynes@657:         ss.channels = 1;
nkeynes@657:     }
nkeynes@657: 
nkeynes@657:     pulse_server = pa_simple_new(NULL, APP_NAME, PA_STREAM_PLAYBACK,
nkeynes@657:                                  NULL, "Audio", &ss, NULL, NULL, NULL);
nkeynes@657:     if( pulse_server == NULL ) {
nkeynes@657: 	ERROR( "Unable to open audio output (pulseaudio)" );
nkeynes@657: 	return FALSE;
nkeynes@657:     }
nkeynes@657:     return TRUE;
nkeynes@657: }
nkeynes@657: 
nkeynes@657: gboolean audio_pulse_process_buffer( audio_buffer_t buffer )
nkeynes@657: {
nkeynes@657:     if( pulse_server != NULL ) {
nkeynes@657:         int error;
nkeynes@657:         pa_simple_write( pulse_server, buffer->data, buffer->length, &error );
nkeynes@657: 	return TRUE;
nkeynes@657:     } else {
nkeynes@657: 	ERROR( "Pulseaudio not initialized" );
nkeynes@657: 	return FALSE;
nkeynes@657:     }
nkeynes@657: }
nkeynes@657: 
nkeynes@697: gboolean audio_pulse_shutdown()
nkeynes@657: {
nkeynes@657:   pa_simple_free(pulse_server);
nkeynes@657:   pulse_server = NULL;
nkeynes@657:   return TRUE;
nkeynes@657: }
nkeynes@657: 
nkeynes@697: struct audio_driver audio_pulse_driver = { "pulse",
nkeynes@697:         DEFAULT_SAMPLE_RATE,
nkeynes@697:         DEFAULT_SAMPLE_FORMAT,
nkeynes@697:         audio_pulse_init,
nkeynes@697:         NULL,
nkeynes@697:         audio_pulse_process_buffer,
nkeynes@697:         NULL,
nkeynes@697:         audio_pulse_shutdown};
nkeynes@657: