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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
Copyright (C) 2000-2013 Darklegion Development
Copyright (C) 2005 Stuart Dalton (badcdev@gmail.com)
This file is part of Tremulous.
Tremulous 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.
Tremulous 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 Tremulous; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#include "client.h"
#include "snd_codec.h"
static snd_codec_t *codecs;
/*
=================
S_CodecGetSound
Opens/loads a sound, tries codec based on the sound's file extension
then tries all supported codecs.
=================
*/
static void *S_CodecGetSound(const char *filename, snd_info_t *info)
{
snd_codec_t *codec;
snd_codec_t *orgCodec = NULL;
qboolean orgNameFailed = qfalse;
char localName[ MAX_QPATH ];
const char *ext;
char altName[ MAX_QPATH ];
void *rtn = NULL;
Q_strncpyz(localName, filename, MAX_QPATH);
ext = COM_GetExtension(localName);
if( *ext )
{
// Look for the correct loader and use it
for( codec = codecs; codec; codec = codec->next )
{
if( !Q_stricmp( ext, codec->ext ) )
{
// Load
if( info )
rtn = codec->load(localName, info);
else
rtn = codec->open(localName);
break;
}
}
// A loader was found
if( codec )
{
if( !rtn )
{
// Loader failed, most likely because the file isn't there;
// try again without the extension
orgNameFailed = qtrue;
orgCodec = codec;
COM_StripExtension( filename, localName, MAX_QPATH );
}
else
{
// Something loaded
return rtn;
}
}
}
// Try and find a suitable match using all
// the sound codecs supported
for( codec = codecs; codec; codec = codec->next )
{
if( codec == orgCodec )
continue;
Com_sprintf( altName, sizeof (altName), "%s.%s", localName, codec->ext );
// Load
if( info )
rtn = codec->load(altName, info);
else
rtn = codec->open(altName);
if( rtn )
{
if( orgNameFailed )
{
Com_DPrintf(S_COLOR_YELLOW "WARNING: %s not present, using %s instead\n",
filename, altName );
}
return rtn;
}
}
Com_Printf(S_COLOR_YELLOW "WARNING: Failed to %s sound %s!\n", info ? "load" : "open", filename);
return NULL;
}
/*
=================
S_CodecInit
=================
*/
void S_CodecInit()
{
codecs = NULL;
#ifdef USE_CODEC_VORBIS
S_CodecRegister(&ogg_codec);
#endif
// Register wav codec last so that it is always tried first when a file extension was not found
S_CodecRegister(&wav_codec);
}
/*
=================
S_CodecShutdown
=================
*/
void S_CodecShutdown()
{
codecs = NULL;
}
/*
=================
S_CodecRegister
=================
*/
void S_CodecRegister(snd_codec_t *codec)
{
codec->next = codecs;
codecs = codec;
}
/*
=================
S_CodecLoad
=================
*/
void *S_CodecLoad(const char *filename, snd_info_t *info)
{
return S_CodecGetSound(filename, info);
}
/*
=================
S_CodecOpenStream
=================
*/
snd_stream_t *S_CodecOpenStream(const char *filename)
{
return S_CodecGetSound(filename, NULL);
}
void S_CodecCloseStream(snd_stream_t *stream)
{
stream->codec->close(stream);
}
int S_CodecReadStream(snd_stream_t *stream, int bytes, void *buffer)
{
return stream->codec->read(stream, bytes, buffer);
}
//=======================================================================
// Util functions (used by codecs)
/*
=================
S_CodecUtilOpen
=================
*/
snd_stream_t *S_CodecUtilOpen(const char *filename, snd_codec_t *codec)
{
snd_stream_t *stream;
fileHandle_t hnd;
int length;
// Try to open the file
length = FS_FOpenFileRead(filename, &hnd, qtrue);
if(!hnd)
{
Com_DPrintf("Can't read sound file %s\n", filename);
return NULL;
}
// Allocate a stream
stream = Z_Malloc(sizeof(snd_stream_t));
if(!stream)
{
FS_FCloseFile(hnd);
return NULL;
}
// Copy over, return
stream->codec = codec;
stream->file = hnd;
stream->length = length;
return stream;
}
/*
=================
S_CodecUtilClose
=================
*/
void S_CodecUtilClose(snd_stream_t **stream)
{
FS_FCloseFile((*stream)->file);
Z_Free(*stream);
*stream = NULL;
}
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