--- a/misc/libopenalbridge/loaders.c Fri Oct 11 11:55:31 2013 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,238 +0,0 @@
-/*
-* OpenAL Bridge - a simple portable library for OpenAL interface
-* Copyright (c) 2009 Vittorio Giovara <vittorio.giovara@gmail.com>
-*
-* This program is free software; you can redistribute it and/or modify
-* it under the terms of the GNU Lesser General Public License as published by
-* the Free Software Foundation; version 2 of the License
-*
-* 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 Lesser General Public License for more details.
-*
-* You should have received a copy of the GNU Lesser 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
-*/
-
-#include "loaders.h"
-#include "wrappers.h"
-#include "vorbis/vorbisfile.h"
-#include "openalbridge_t.h"
-
-
-int load_wavpcm (const char *filename, ALenum *format, char **data, ALsizei *bitsize, ALsizei *freq) {
- WAV_header_t WAVHeader;
- FILE *wavfile;
- int32_t t;
- uint32_t n = 0;
- uint8_t sub0, sub1, sub2, sub3;
-
- wavfile = Fopen(filename, "rb");
-
- fread(&WAVHeader.ChunkID, sizeof(uint32_t), 1, wavfile); /*RIFF*/
- fread(&WAVHeader.ChunkSize, sizeof(uint32_t), 1, wavfile);
- fread(&WAVHeader.Format, sizeof(uint32_t), 1, wavfile); /*WAVE*/
-
-#ifdef DEBUG
- fprintf(stderr, "ChunkID: %X\n", ENDIAN_BIG_32(WAVHeader.ChunkID));
- fprintf(stderr, "ChunkSize: %d\n", ENDIAN_LITTLE_32(WAVHeader.ChunkSize));
- fprintf(stderr, "Format: %X\n", ENDIAN_BIG_32(WAVHeader.Format));
-#endif
-
- fread(&WAVHeader.Subchunk1ID, sizeof(uint32_t), 1, wavfile); /*fmt */
- fread(&WAVHeader.Subchunk1Size, sizeof(uint32_t), 1, wavfile);
- fread(&WAVHeader.AudioFormat, sizeof(uint16_t), 1, wavfile);
- fread(&WAVHeader.NumChannels, sizeof(uint16_t), 1, wavfile);
- fread(&WAVHeader.SampleRate, sizeof(uint32_t), 1, wavfile);
- fread(&WAVHeader.ByteRate, sizeof(uint32_t), 1, wavfile);
- fread(&WAVHeader.BlockAlign, sizeof(uint16_t), 1, wavfile);
- fread(&WAVHeader.BitsPerSample, sizeof(uint16_t), 1, wavfile);
-
-#ifdef DEBUG
- fprintf(stderr, "Subchunk1ID: %X\n", ENDIAN_BIG_32(WAVHeader.Subchunk1ID));
- fprintf(stderr, "Subchunk1Size: %d\n", ENDIAN_LITTLE_32(WAVHeader.Subchunk1Size));
- fprintf(stderr, "AudioFormat: %d\n", ENDIAN_LITTLE_16(WAVHeader.AudioFormat));
- fprintf(stderr, "NumChannels: %d\n", ENDIAN_LITTLE_16(WAVHeader.NumChannels));
- fprintf(stderr, "SampleRate: %d\n", ENDIAN_LITTLE_32(WAVHeader.SampleRate));
- fprintf(stderr, "ByteRate: %d\n", ENDIAN_LITTLE_32(WAVHeader.ByteRate));
- fprintf(stderr, "BlockAlign: %d\n", ENDIAN_LITTLE_16(WAVHeader.BlockAlign));
- fprintf(stderr, "BitsPerSample: %d\n", ENDIAN_LITTLE_16(WAVHeader.BitsPerSample));
-#endif
-
- /*remove useless header chunks by looking for the WAV_HEADER_SUBCHUNK2ID integer */
- do {
- t = fread(&sub0, sizeof(uint8_t), 1, wavfile);
- if(sub0 == 0x64) {
- t = fread(&sub1, sizeof(uint8_t), 1, wavfile);
- if(sub1 == 0x61) {
- t = fread(&sub2, sizeof(uint8_t), 1, wavfile);
- if(sub2 == 0x74) {
- t = fread(&sub3, sizeof(uint8_t), 1, wavfile);
- if(sub3 == 0x61) {
- WAVHeader.Subchunk2ID = WAV_HEADER_SUBCHUNK2ID;
- break;
- }
- }
- }
- }
-
- if (t <= 0) {
- // eof
- fprintf(stderr,"(Bridge Error) - wrong WAV header\n");
- return -1;
- }
- } while (1);
-
- fread(&WAVHeader.Subchunk2Size, sizeof(uint32_t), 1, wavfile);
-
-#ifdef DEBUG
- fprintf(stderr, "Subchunk2ID: %X\n", ENDIAN_LITTLE_32(WAVHeader.Subchunk2ID));
- fprintf(stderr, "Subchunk2Size: %d\n", ENDIAN_LITTLE_32(WAVHeader.Subchunk2Size));
-#endif
-
- *data = (char*) Malloc (sizeof(char) * ENDIAN_LITTLE_32(WAVHeader.Subchunk2Size));
-
- /*read the actual sound data*/
- do {
- n += fread(&((*data)[n]), sizeof(uint8_t), 4, wavfile);
- } while (n < ENDIAN_LITTLE_32(WAVHeader.Subchunk2Size));
-
- fclose(wavfile);
-
-#ifdef DEBUG
- fprintf(stderr,"(Bridge Info) - WAV data loaded\n");
-#endif
-
- /*set parameters for OpenAL*/
- /*Valid formats are AL_FORMAT_MONO8, AL_FORMAT_MONO16, AL_FORMAT_STEREO8, and AL_FORMAT_STEREO16*/
- if (ENDIAN_LITTLE_16(WAVHeader.NumChannels) == 1) {
- if (ENDIAN_LITTLE_16(WAVHeader.BitsPerSample) == 8)
- *format = AL_FORMAT_MONO8;
- else {
- if (ENDIAN_LITTLE_16(WAVHeader.BitsPerSample) == 16)
- *format = AL_FORMAT_MONO16;
- else {
- fprintf(stderr,"(Bridge Error) - wrong WAV header [bitsample value]\n");
- return -2;
- }
- }
- } else {
- if (ENDIAN_LITTLE_16(WAVHeader.NumChannels) == 2) {
- if (ENDIAN_LITTLE_16(WAVHeader.BitsPerSample) == 8)
- *format = AL_FORMAT_STEREO8;
- else {
- if (ENDIAN_LITTLE_16(WAVHeader.BitsPerSample) == 16)
- *format = AL_FORMAT_STEREO16;
- else {
- fprintf(stderr,"(Bridge Error) - wrong WAV header [bitsample value]\n");
- return -2;
- }
- }
- } else {
- fprintf(stderr,"(Bridge Error) - wrong WAV header [format value]\n");
- return -2;
- }
- }
-
- *bitsize = ENDIAN_LITTLE_32(WAVHeader.Subchunk2Size);
- *freq = ENDIAN_LITTLE_32(WAVHeader.SampleRate);
- return 0;
-}
-
-
-int load_oggvorbis (const char *filename, ALenum *format, char **data, ALsizei *bitsize, ALsizei *freq) {
- /*implementation inspired from http://www.devmaster.net/forums/showthread.php?t=1153 */
-
- /*ogg handle*/
- FILE *oggFile;
- /*stream handle*/
- OggVorbis_File oggStream;
- /*some formatting data*/
- vorbis_info *vorbisInfo;
- /*length of the decoded data*/
- int64_t pcm_length;
- /*other vars*/
- int section, result, size, endianness;
-#ifdef DEBUG
- int i;
- /*other less useful data*/
- vorbis_comment *vorbisComment;
-#endif
-
- oggFile = Fopen(filename, "rb");
- result = ov_open_callbacks(oggFile, &oggStream, NULL, 0, OV_CALLBACKS_DEFAULT);
- if (result < 0) {
- fprintf(stderr,"(Bridge Error) - ov_open_callbacks() failed with %X\n", result);
- ov_clear(&oggStream);
- return -1;
- }
-
- /*load OGG header and determine the decoded data size*/
- vorbisInfo = ov_info(&oggStream, -1);
- pcm_length = ov_pcm_total(&oggStream, -1) << vorbisInfo->channels;
-
-#ifdef DEBUG
- vorbisComment = ov_comment(&oggStream, -1);
- fprintf(stderr, "Version: %d\n", vorbisInfo->version);
- fprintf(stderr, "Channels: %d\n", vorbisInfo->channels);
- fprintf(stderr, "Rate (Hz): %ld\n", vorbisInfo->rate);
- fprintf(stderr, "Bitrate Upper: %ld\n", vorbisInfo->bitrate_upper);
- fprintf(stderr, "Bitrate Nominal: %ld\n", vorbisInfo->bitrate_nominal);
- fprintf(stderr, "Bitrate Lower: %ld\n", vorbisInfo->bitrate_lower);
- fprintf(stderr, "Bitrate Windows: %ld\n", vorbisInfo->bitrate_window);
- fprintf(stderr, "Vendor: %s\n", vorbisComment->vendor);
- fprintf(stderr, "PCM data size: %lld\n", pcm_length);
- fprintf(stderr, "# comment: %d\n", vorbisComment->comments);
- for (i = 0; i < vorbisComment->comments; i++)
- fprintf(stderr, "\tComment %d: %s\n", i, vorbisComment->user_comments[i]);
-#endif
-
- /*allocates enough room for the decoded data*/
- *data = (char*) Malloc (sizeof(char) * pcm_length);
-
- /*there *should* not be ogg at 8 bits*/
- if (vorbisInfo->channels == 1)
- *format = AL_FORMAT_MONO16;
- else {
- if (vorbisInfo->channels == 2)
- *format = AL_FORMAT_STEREO16;
- else {
- fprintf(stderr,"(Bridge Error) - wrong OGG header [channel %d]\n", vorbisInfo->channels);
- ov_clear(&oggStream);
- return -2;
- }
- }
-
- size = 0;
-#ifdef __LITTLE_ENDIAN__
- endianness = 0;
-#elif __BIG_ENDIAN__
- endianness = 1;
-#endif
- while (size < pcm_length) {
- /*ov_read decodes the ogg stream and storse the pcm in data*/
- result = ov_read (&oggStream, *data + size, pcm_length - size, endianness, 2, 1, §ion);
- if (result > 0) {
- size += result;
- } else {
- if (result == 0)
- break;
- else {
- fprintf(stderr,"(Bridge Error) - End of file from OGG stream\n");
- ov_clear(&oggStream);
- return -3;
- }
- }
- }
-
- /*set the last fields*/
- *bitsize = size;
- *freq = vorbisInfo->rate;
-
- /*cleaning time (ov_clear also closes file handler)*/
- ov_clear(&oggStream);
-
- return 0;
-}