nkeynes@66: /**
nkeynes@66:  * $Id: audio_esd.c,v 1.1 2006-01-10 13:56:54 nkeynes Exp $
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@66: #include <esd.h>
nkeynes@66: #include "aica/audio.h"
nkeynes@66: #include "dream.h"
nkeynes@66: 
nkeynes@66: int esd_handle = -1;
nkeynes@66: int esd_sample_size = 1;
nkeynes@66: 
nkeynes@66: gboolean esd_audio_set_format( uint32_t rate, uint32_t format )
nkeynes@66: {
nkeynes@66:     if( esd_handle != -1 ) {
nkeynes@66: 	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@66: 	esd_format |= ESD_BITS16;
nkeynes@66: 	esd_sample_size = 1;
nkeynes@66:     } else esd_format |= ESD_BITS8;
nkeynes@66:     if( format & AUDIO_FMT_STEREO ) {
nkeynes@66: 	esd_format |= ESD_STEREO;
nkeynes@66: 	esd_sample_size = esd_sample_size << 1 ;
nkeynes@66:     }
nkeynes@66:     else esd_format |= ESD_MONO;
nkeynes@66:     
nkeynes@66:     esd_handle = esd_play_stream( esd_format, rate, "localhost", "dreamon" );
nkeynes@66:     return TRUE;
nkeynes@66: }
nkeynes@66: 
nkeynes@66: gboolean esd_audio_process_buffer( audio_buffer_t buffer )
nkeynes@66: {
nkeynes@66:     if( esd_handle != -1 ) {
nkeynes@66: 	write( esd_handle, buffer->data, buffer->length * esd_sample_size );
nkeynes@66: 	DEBUG("Wrote buffer" );
nkeynes@66:     } else {
nkeynes@66: 	ERROR( "ESD not initialized" );
nkeynes@66:     }
nkeynes@66:     return TRUE;
nkeynes@66: }
nkeynes@66: 
nkeynes@66: struct audio_driver esd_audio_driver = { esd_audio_set_format, esd_audio_process_buffer };
nkeynes@66: