/**

 * $Id$

 * 

 * The esd (esound) audio 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 <esd.h>

#include "aica/audio.h"

#include "dream.h"

static int esd_handle = -1;

static int esd_sample_size = 1;

static gboolean audio_esd_init()

{

    int format = DEFAULT_SAMPLE_FORMAT;

    int rate = DEFAULT_SAMPLE_RATE;

    if( esd_handle != -1 ) {

        esd_close(esd_handle);

    }

    esd_format_t esd_format = 0;

    esd_sample_size = 1;

    if( format & AUDIO_FMT_16BIT ) {

        esd_format |= ESD_BITS16;

    } else esd_format |= ESD_BITS8;

    if( format & AUDIO_FMT_STEREO ) {

        esd_format |= ESD_STEREO;

    }

    else esd_format |= ESD_MONO;

    esd_handle = esd_play_stream( esd_format, rate, "localhost", "lxdream" );

    if( esd_handle == -1 ) {

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

        return FALSE;

    }

    return TRUE;

}

static gboolean audio_esd_process_buffer( audio_buffer_t buffer )

{

    if( esd_handle != -1 ) {

        write( esd_handle, buffer->data, buffer->length );

        return TRUE;

    } else {

        ERROR( "ESD not initialized" );

        return FALSE;

    }

}

static gboolean audio_esd_shutdown()

{

    close(esd_handle);

    esd_handle = -1;

    return TRUE;

}

static struct audio_driver audio_esd_driver = { 

        "esd",

        N_("Enlightened Sound Daemon driver"),

        30,

        DEFAULT_SAMPLE_RATE,

        DEFAULT_SAMPLE_FORMAT,

        audio_esd_init,

        NULL, 

        audio_esd_process_buffer,

        NULL,

        audio_esd_shutdown};

AUDIO_DRIVER( "esd", audio_esd_driver );