/**

 * $Id$

 * 

 * The pulseaudio sound driver

 *

 * Copyright (c) 2005 Nathan Keynes.

 *

 * This program 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.

 *

 * This program 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.

 */

#include <stdio.h>

#include <unistd.h>

#include <pulse/simple.h>

#include "aica/audio.h"

#include "lxdream.h"

static pa_simple *pulse_server = NULL;

gboolean audio_pulse_init( )

{

    int rate = DEFAULT_SAMPLE_RATE;

    int format = DEFAULT_SAMPLE_FORMAT;

    pa_sample_spec ss;

    if( pulse_server != NULL ) {

        pa_simple_free(pulse_server);

    }

    ss.rate = rate;

    if( format & AUDIO_FMT_16BIT ) {

        ss.format = PA_SAMPLE_S16NE;

    } else {

        ss.format = PA_SAMPLE_U8;

    }

    if( format & AUDIO_FMT_STEREO ) {

        ss.channels = 2;

    } else {

        ss.channels = 1;

    }

    pulse_server = pa_simple_new(NULL, APP_NAME, PA_STREAM_PLAYBACK,

            NULL, "Audio", &ss, NULL, NULL, NULL);

    if( pulse_server == NULL ) {

        ERROR( "Unable to open audio output (pulseaudio)" );

        return FALSE;

    }

    return TRUE;

}

gboolean audio_pulse_process_buffer( audio_buffer_t buffer )

{

    if( pulse_server != NULL ) {

        int error;

        pa_simple_write( pulse_server, buffer->data, buffer->length, &error );

        return TRUE;

    } else {

        ERROR( "Pulseaudio not initialized" );

        return FALSE;

    }

}

gboolean audio_pulse_shutdown()

{

    pa_simple_free(pulse_server);

    pulse_server = NULL;

    return TRUE;

}

struct audio_driver audio_pulse_driver = { 

        "pulse",

        N_("PulseAudio sound server driver"),

        DEFAULT_SAMPLE_RATE,

        DEFAULT_SAMPLE_FORMAT,

        audio_pulse_init,

        NULL,

        audio_pulse_process_buffer,

        NULL,

        audio_pulse_shutdown};