diff options
Diffstat (limited to 'ioq3-r437/src/client/snd_codec_wav.c')
| -rw-r--r-- | ioq3-r437/src/client/snd_codec_wav.c | 285 |
1 files changed, 0 insertions, 285 deletions
diff --git a/ioq3-r437/src/client/snd_codec_wav.c b/ioq3-r437/src/client/snd_codec_wav.c deleted file mode 100644 index a60f3da7..00000000 --- a/ioq3-r437/src/client/snd_codec_wav.c +++ /dev/null @@ -1,285 +0,0 @@ -/* -=========================================================================== -Copyright (C) 1999-2005 Id Software, Inc. -Copyright (C) 2005 Stuart Dalton (badcdev@gmail.com) - -This file is part of Quake III Arena source code. - -Quake III Arena source code 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. - -Quake III Arena source code 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 Quake III Arena source code; 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" - -/* -================= -FGetLittleLong -================= -*/ -static int FGetLittleLong( fileHandle_t f ) { - int v; - - FS_Read( &v, sizeof(v), f ); - - return LittleLong( v); -} - -/* -================= -FGetLittleShort -================= -*/ -static short FGetLittleShort( fileHandle_t f ) { - short v; - - FS_Read( &v, sizeof(v), f ); - - return LittleShort( v); -} - -/* -================= -S_ReadChunkInfo -================= -*/ -static int S_ReadChunkInfo(fileHandle_t f, char *name) -{ - int len, r; - - name[4] = 0; - - r = FS_Read(name, 4, f); - if(r != 4) - return -1; - - len = FGetLittleLong(f); - if( len < 0 ) { - Com_Printf( S_COLOR_YELLOW "WARNING: Negative chunk length\n" ); - return -1; - } - - return len; -} - -/* -================= -S_FindRIFFChunk - -Returns the length of the data in the chunk, or -1 if not found -================= -*/ -static int S_FindRIFFChunk( fileHandle_t f, char *chunk ) { - char name[5]; - int len; - - while( ( len = S_ReadChunkInfo(f, name) ) >= 0 ) - { - // If this is the right chunk, return - if( !Q_strncmp( name, chunk, 4 ) ) - return len; - - len = PAD( len, 2 ); - - // Not the right chunk - skip it - FS_Seek( f, len, FS_SEEK_CUR ); - } - - return -1; -} - -/* -================= -S_ByteSwapRawSamples -================= -*/ -static void S_ByteSwapRawSamples( int samples, int width, int s_channels, const byte *data ) { - int i; - - if ( width != 2 ) { - return; - } - if ( LittleShort( 256 ) == 256 ) { - return; - } - - if ( s_channels == 2 ) { - samples <<= 1; - } - for ( i = 0 ; i < samples ; i++ ) { - ((short *)data)[i] = LittleShort( ((short *)data)[i] ); - } -} - -/* -================= -S_ReadRIFFHeader -================= -*/ -static qboolean S_ReadRIFFHeader(fileHandle_t file, snd_info_t *info) -{ - char dump[16]; - int wav_format; - int fmtlen = 0; - - // skip the riff wav header - FS_Read(dump, 12, file); - - // Scan for the format chunk - if((fmtlen = S_FindRIFFChunk(file, "fmt ")) < 0) - { - Com_Printf( S_COLOR_RED "ERROR: Couldn't find \"fmt\" chunk\n"); - return qfalse; - } - - // Save the parameters - wav_format = FGetLittleShort(file); - info->channels = FGetLittleShort(file); - info->rate = FGetLittleLong(file); - FGetLittleLong(file); - FGetLittleShort(file); - info->width = FGetLittleShort(file) / 8; - info->dataofs = 0; - - // Skip the rest of the format chunk if required - if(fmtlen > 16) - { - fmtlen -= 16; - FS_Seek( file, fmtlen, FS_SEEK_CUR ); - } - - // Scan for the data chunk - if( (info->size = S_FindRIFFChunk(file, "data")) < 0) - { - Com_Printf( S_COLOR_RED "ERROR: Couldn't find \"data\" chunk\n"); - return qfalse; - } - info->samples = (info->size / info->width) / info->channels; - - return qtrue; -} - -// WAV codec -snd_codec_t wav_codec = -{ - ".wav", - S_WAV_CodecLoad, - S_WAV_CodecOpenStream, - S_WAV_CodecReadStream, - S_WAV_CodecCloseStream, - NULL -}; - -/* -================= -S_WAV_CodecLoad -================= -*/ -void *S_WAV_CodecLoad(const char *filename, snd_info_t *info) -{ - fileHandle_t file; - void *buffer; - - // Try to open the file - FS_FOpenFileRead(filename, &file, qtrue); - if(!file) - { - Com_Printf( S_COLOR_RED "ERROR: Could not open \"%s\"\n", - filename); - return NULL; - } - - // Read the RIFF header - if(!S_ReadRIFFHeader(file, info)) - { - FS_FCloseFile(file); - Com_Printf( S_COLOR_RED "ERROR: Incorrect/unsupported format in \"%s\"\n", - filename); - return NULL; - } - - // Allocate some memory - buffer = Z_Malloc(info->size); - if(!buffer) - { - FS_FCloseFile(file); - Com_Printf( S_COLOR_RED "ERROR: Out of memory reading \"%s\"\n", - filename); - return NULL; - } - - // Read, byteswap - FS_Read(buffer, info->size, file); - S_ByteSwapRawSamples(info->samples, info->width, info->channels, (byte *)buffer); - - // Close and return - FS_FCloseFile(file); - return buffer; -} - -/* -================= -S_WAV_CodecOpenStream -================= -*/ -snd_stream_t *S_WAV_CodecOpenStream(const char *filename) -{ - snd_stream_t *rv; - - // Open - rv = S_CodecUtilOpen(filename, &wav_codec); - if(!rv) - return NULL; - - // Read the RIFF header - if(!S_ReadRIFFHeader(rv->file, &rv->info)) - { - S_CodecUtilClose(rv); - return NULL; - } - - return rv; -} - -/* -================= -S_WAV_CodecCloseStream -================= -*/ -void S_WAV_CodecCloseStream(snd_stream_t *stream) -{ - S_CodecUtilClose(stream); -} - -/* -================= -S_WAV_CodecReadStream -================= -*/ -int S_WAV_CodecReadStream(snd_stream_t *stream, int bytes, void *buffer) -{ - int remaining = stream->info.size - stream->pos; - int samples; - - if(remaining <= 0) - return 0; - if(bytes > remaining) - bytes = remaining; - stream->pos += bytes; - samples = (bytes / stream->info.width) / stream->info.channels; - FS_Read(buffer, bytes, stream->file); - S_ByteSwapRawSamples(samples, stream->info.width, stream->info.channels, buffer); - return bytes; -} |