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/*
* PARSEC - Supporting Audio Code
*
* $Author: uberlinuxguy $ - $Date: 2004/09/15 12:25:21 $
*
* Orginally written by:
* Copyright (c) Clemens Beer <cbx@parsec.org> 1999
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// C library
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// compilation flags/debug support
#include "config.h"
#include "debug.h"
// general definitions
#include "general.h"
#include "objstruc.h"
// global externals
#include "globals.h"
// subsystem headers
#include "aud_defs.h"
// local module header
#include "aud_supp.h"
// proprietary module headers
#include "con_aux.h"
// find a sample specified by a name ------------------------------------------
//
sampleinfo_s* AUD_FetchSampleByName( const char *name, int *id )
{
ASSERT( name != NULL );
ASSERT( id != NULL );
// scan entire table of samples
for ( int sampleid = 0; sampleid < NumLoadedSamples; sampleid++ ) {
if ( stricmp( SampleInfo[ sampleid ].name, name ) == 0 ) {
*id = sampleid;
return &SampleInfo [ sampleid ];
}
}
// no sample of this name found
return NULL;
}
// find a sample specified by its id ------------------------------------------
//
sampleinfo_s* AUD_FetchSampleById( int id )
{
//NOTE:
// this function may be invoked for invalid
// sample ids. in that case NULL will be
// returned.
// ensure id is valid
if ( ( id < 0 ) || ( id >= NumLoadedSamples ) )
return (sampleinfo_s*)NULL;
return &SampleInfo [ id ];
}
// change the volume of the specified sample ----------------------------------
//
int AUD_SetSampleVolume( int id, int volume )
{
//NOTE:
// this function may be invoked for invalid
// sample ids. in that case FALSE will be
// returned.
if ( ( id >= 0 ) && ( id < NumLoadedSamples ) ) {
SampleInfo [ id ].volume = volume;
return TRUE;
}
return FALSE;
}
// play a sample on a channel -------------------------------------------------
//
int AUD_PlaySampleOnChannel( sample_channel_info_s *info )
{
ASSERT( info != NULL );
if ( DISABLE_AUDIO_FUNCTIONS || AUX_DISABLE_SOUNDEFFECTS )
return FALSE;
if ( info->interruptold == FALSE ) {
// check whether any previous playing has already stopped
int stopped;
AUDs_GetVoiceStatus( info->channel, &stopped );
if ( stopped == 0 )
return FALSE;
}
if ( info->fallbacksample ) {
AUD_FETCHSAMPLE_FALLBACK_EX( info->samplename, info->sampleid,
info->fallbacksample );
if ( fetch_wave != NULL ) {
AUXDATA_LAST_SOUNDSYS_RETURNCODE =
AUDs_PlayVoiceBuffer( info->channel, fetch_wave, &fetch_params );
}
} else {
AUD_FETCHSAMPLE_EX( info->samplename, info->sampleid );
if ( fetch_wave != NULL ) {
AUXDATA_LAST_SOUNDSYS_RETURNCODE =
AUDs_PlayVoiceBuffer( info->channel, fetch_wave, &fetch_params );
}
}
return TRUE;
}
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