nkeynes@66: /**
nkeynes@561:  * $Id$
nkeynes@66:  * 
nkeynes@66:  * The esd (esound) audio driver
nkeynes@66:  *
nkeynes@66:  * Copyright (c) 2005 Nathan Keynes.
nkeynes@66:  *
nkeynes@66:  * This program is free software; you can redistribute it and/or modify
nkeynes@66:  * it under the terms of the GNU General Public License as published by
nkeynes@66:  * the Free Software Foundation; either version 2 of the License, or
nkeynes@66:  * (at your option) any later version.
nkeynes@66:  *
nkeynes@66:  * This program is distributed in the hope that it will be useful,
nkeynes@66:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nkeynes@66:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nkeynes@66:  * GNU General Public License for more details.
nkeynes@66:  */
nkeynes@424: #include <stdio.h>
nkeynes@424: #include <unistd.h>
nkeynes@66: #include <esd.h>
nkeynes@66: #include "aica/audio.h"
nkeynes@66: #include "dream.h"
nkeynes@66: 
nkeynes@1024: static int esd_handle = -1;
nkeynes@1024: static int esd_sample_size = 1;
nkeynes@66: 
bhaal22@643: 
nkeynes@1024: static gboolean audio_esd_init()
bhaal22@643: {
nkeynes@697:     int format = DEFAULT_SAMPLE_FORMAT;
nkeynes@697:     int rate = DEFAULT_SAMPLE_RATE;
nkeynes@736: 
nkeynes@66:     if( esd_handle != -1 ) {
nkeynes@697:         esd_close(esd_handle);
nkeynes@66:     }
nkeynes@66:     esd_format_t esd_format = 0;
nkeynes@66:     esd_sample_size = 1;
nkeynes@66:     if( format & AUDIO_FMT_16BIT ) {
nkeynes@697:         esd_format |= ESD_BITS16;
nkeynes@66:     } else esd_format |= ESD_BITS8;
nkeynes@66:     if( format & AUDIO_FMT_STEREO ) {
nkeynes@697:         esd_format |= ESD_STEREO;
nkeynes@66:     }
nkeynes@66:     else esd_format |= ESD_MONO;
nkeynes@697: 
nkeynes@180:     esd_handle = esd_play_stream( esd_format, rate, "localhost", "lxdream" );
nkeynes@86:     if( esd_handle == -1 ) {
nkeynes@697:         ERROR( "Unable to open audio output (ESD)" );
nkeynes@697:         return FALSE;
nkeynes@86:     }
nkeynes@66:     return TRUE;
nkeynes@66: }
nkeynes@66: 
nkeynes@1024: static gboolean audio_esd_process_buffer( audio_buffer_t buffer )
nkeynes@66: {
nkeynes@66:     if( esd_handle != -1 ) {
nkeynes@697:         write( esd_handle, buffer->data, buffer->length );
nkeynes@697:         return TRUE;
nkeynes@66:     } else {
nkeynes@697:         ERROR( "ESD not initialized" );
nkeynes@697:         return FALSE;
nkeynes@66:     }
nkeynes@66: }
nkeynes@66: 
nkeynes@1024: static gboolean audio_esd_shutdown()
bhaal22@643: {
nkeynes@697:     close(esd_handle);
nkeynes@697:     esd_handle = -1;
nkeynes@697:     return TRUE;
bhaal22@643: }
nkeynes@66: 
nkeynes@1024: static struct audio_driver audio_esd_driver = { 
nkeynes@700:         "esd",
nkeynes@700:         N_("Enlightened Sound Daemon driver"),
nkeynes@1024:         30,
nkeynes@697:         DEFAULT_SAMPLE_RATE,
nkeynes@697:         DEFAULT_SAMPLE_FORMAT,
nkeynes@697:         audio_esd_init,
nkeynes@697:         NULL, 
nkeynes@697:         audio_esd_process_buffer,
nkeynes@697:         NULL,
nkeynes@697:         audio_esd_shutdown};
bhaal22@643: 
nkeynes@1024: AUDIO_DRIVER( "esd", audio_esd_driver );