/** * OpenAL cross platform audio library * Copyright (C) 1999-2007 by authors. * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. * Or go to http://www.gnu.org/copyleft/lgpl.html */ #include "config.h" #include #include #include #include #include "alMain.h" #include "alu.h" #include "alError.h" #include "alBuffer.h" #include "alThunk.h" static ALenum LoadData(ALbuffer *ALBuf, ALuint freq, ALenum NewFormat, ALsizei frames, enum UserFmtChannels chans, enum UserFmtType type, const ALvoid *data, ALboolean storesrc); static void ConvertData(ALvoid *dst, enum UserFmtType dstType, const ALvoid *src, enum UserFmtType srcType, ALsizei numchans, ALsizei len); static ALboolean IsValidType(ALenum type); static ALboolean IsValidChannels(ALenum channels); static ALboolean DecomposeUserFormat(ALenum format, enum UserFmtChannels *chans, enum UserFmtType *type); static ALboolean DecomposeFormat(ALenum format, enum FmtChannels *chans, enum FmtType *type); /* * Global Variables */ /* IMA ADPCM Stepsize table */ static const long IMAStep_size[89] = { 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 19, 21, 23, 25, 28, 31, 34, 37, 41, 45, 50, 55, 60, 66, 73, 80, 88, 97, 107, 118, 130, 143, 157, 173, 190, 209, 230, 253, 279, 307, 337, 371, 408, 449, 494, 544, 598, 658, 724, 796, 876, 963, 1060, 1166, 1282, 1411, 1552, 1707, 1878, 2066, 2272, 2499, 2749, 3024, 3327, 3660, 4026, 4428, 4871, 5358, 5894, 6484, 7132, 7845, 8630, 9493,10442, 11487,12635,13899,15289,16818,18500,20350,22358,24633,27086,29794, 32767 }; /* IMA4 ADPCM Codeword decode table */ static const long IMA4Codeword[16] = { 1, 3, 5, 7, 9, 11, 13, 15, -1,-3,-5,-7,-9,-11,-13,-15, }; /* IMA4 ADPCM Step index adjust decode table */ static const long IMA4Index_adjust[16] = { -1,-1,-1,-1, 2, 4, 6, 8, -1,-1,-1,-1, 2, 4, 6, 8 }; /* A quick'n'dirty lookup table to decode a muLaw-encoded byte sample into a * signed 16-bit sample */ static const ALshort muLawDecompressionTable[256] = { -32124,-31100,-30076,-29052,-28028,-27004,-25980,-24956, -23932,-22908,-21884,-20860,-19836,-18812,-17788,-16764, -15996,-15484,-14972,-14460,-13948,-13436,-12924,-12412, -11900,-11388,-10876,-10364, -9852, -9340, -8828, -8316, -7932, -7676, -7420, -7164, -6908, -6652, -6396, -6140, -5884, -5628, -5372, -5116, -4860, -4604, -4348, -4092, -3900, -3772, -3644, -3516, -3388, -3260, -3132, -3004, -2876, -2748, -2620, -2492, -2364, -2236, -2108, -1980, -1884, -1820, -1756, -1692, -1628, -1564, -1500, -1436, -1372, -1308, -1244, -1180, -1116, -1052, -988, -924, -876, -844, -812, -780, -748, -716, -684, -652, -620, -588, -556, -524, -492, -460, -428, -396, -372, -356, -340, -324, -308, -292, -276, -260, -244, -228, -212, -196, -180, -164, -148, -132, -120, -112, -104, -96, -88, -80, -72, -64, -56, -48, -40, -32, -24, -16, -8, 0, 32124, 31100, 30076, 29052, 28028, 27004, 25980, 24956, 23932, 22908, 21884, 20860, 19836, 18812, 17788, 16764, 15996, 15484, 14972, 14460, 13948, 13436, 12924, 12412, 11900, 11388, 10876, 10364, 9852, 9340, 8828, 8316, 7932, 7676, 7420, 7164, 6908, 6652, 6396, 6140, 5884, 5628, 5372, 5116, 4860, 4604, 4348, 4092, 3900, 3772, 3644, 3516, 3388, 3260, 3132, 3004, 2876, 2748, 2620, 2492, 2364, 2236, 2108, 1980, 1884, 1820, 1756, 1692, 1628, 1564, 1500, 1436, 1372, 1308, 1244, 1180, 1116, 1052, 988, 924, 876, 844, 812, 780, 748, 716, 684, 652, 620, 588, 556, 524, 492, 460, 428, 396, 372, 356, 340, 324, 308, 292, 276, 260, 244, 228, 212, 196, 180, 164, 148, 132, 120, 112, 104, 96, 88, 80, 72, 64, 56, 48, 40, 32, 24, 16, 8, 0 }; /* Values used when encoding a muLaw sample */ static const int muLawBias = 0x84; static const int muLawClip = 32635; static const char muLawCompressTable[256] = { 0,0,1,1,2,2,2,2,3,3,3,3,3,3,3,3, 4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4, 5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5, 5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5, 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6, 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6, 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6, 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7 }; /* A quick'n'dirty lookup table to decode an aLaw-encoded byte sample into a * signed 16-bit sample */ static const ALshort aLawDecompressionTable[256] = { -5504, -5248, -6016, -5760, -4480, -4224, -4992, -4736, -7552, -7296, -8064, -7808, -6528, -6272, -7040, -6784, -2752, -2624, -3008, -2880, -2240, -2112, -2496, -2368, -3776, -3648, -4032, -3904, -3264, -3136, -3520, -3392, -22016,-20992,-24064,-23040,-17920,-16896,-19968,-18944, -30208,-29184,-32256,-31232,-26112,-25088,-28160,-27136, -11008,-10496,-12032,-11520, -8960, -8448, -9984, -9472, -15104,-14592,-16128,-15616,-13056,-12544,-14080,-13568, -344, -328, -376, -360, -280, -264, -312, -296, -472, -456, -504, -488, -408, -392, -440, -424, -88, -72, -120, -104, -24, -8, -56, -40, -216, -200, -248, -232, -152, -136, -184, -168, -1376, -1312, -1504, -1440, -1120, -1056, -1248, -1184, -1888, -1824, -2016, -1952, -1632, -1568, -1760, -1696, -688, -656, -752, -720, -560, -528, -624, -592, -944, -912, -1008, -976, -816, -784, -880, -848, 5504, 5248, 6016, 5760, 4480, 4224, 4992, 4736, 7552, 7296, 8064, 7808, 6528, 6272, 7040, 6784, 2752, 2624, 3008, 2880, 2240, 2112, 2496, 2368, 3776, 3648, 4032, 3904, 3264, 3136, 3520, 3392, 22016, 20992, 24064, 23040, 17920, 16896, 19968, 18944, 30208, 29184, 32256, 31232, 26112, 25088, 28160, 27136, 11008, 10496, 12032, 11520, 8960, 8448, 9984, 9472, 15104, 14592, 16128, 15616, 13056, 12544, 14080, 13568, 344, 328, 376, 360, 280, 264, 312, 296, 472, 456, 504, 488, 408, 392, 440, 424, 88, 72, 120, 104, 24, 8, 56, 40, 216, 200, 248, 232, 152, 136, 184, 168, 1376, 1312, 1504, 1440, 1120, 1056, 1248, 1184, 1888, 1824, 2016, 1952, 1632, 1568, 1760, 1696, 688, 656, 752, 720, 560, 528, 624, 592, 944, 912, 1008, 976, 816, 784, 880, 848 }; /* Values used when encoding an aLaw sample */ static const int aLawClip = 32635; static const char aLawCompressTable[128] = { 1,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4, 5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5, 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6, 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7 }; AL_API ALvoid AL_APIENTRY alGenBuffers(ALsizei n, ALuint *buffers) { ALCcontext *Context; ALsizei cur = 0; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; ALenum err; CHECK_VALUE(Context, n >= 0); for(cur = 0;cur < n;cur++) { ALbuffer *buffer = calloc(1, sizeof(ALbuffer)); if(!buffer) al_throwerr(Context, AL_OUT_OF_MEMORY); RWLockInit(&buffer->lock); err = NewThunkEntry(&buffer->id); if(err == AL_NO_ERROR) err = InsertUIntMapEntry(&device->BufferMap, buffer->id, buffer); if(err != AL_NO_ERROR) { FreeThunkEntry(buffer->id); memset(buffer, 0, sizeof(ALbuffer)); free(buffer); al_throwerr(Context, err); } buffers[cur] = buffer->id; } } al_catchany() { if(cur > 0) alDeleteBuffers(cur, buffers); } al_endtry; ALCcontext_DecRef(Context); } AL_API ALvoid AL_APIENTRY alDeleteBuffers(ALsizei n, const ALuint *buffers) { ALCcontext *Context; ALbuffer *ALBuf; ALsizei i; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; CHECK_VALUE(Context, n >= 0); for(i = 0;i < n;i++) { if(!buffers[i]) continue; /* Check for valid Buffer ID */ if((ALBuf=LookupBuffer(device, buffers[i])) == NULL) al_throwerr(Context, AL_INVALID_NAME); if(ALBuf->ref != 0) al_throwerr(Context, AL_INVALID_OPERATION); } for(i = 0;i < n;i++) { if((ALBuf=RemoveBuffer(device, buffers[i])) == NULL) continue; FreeThunkEntry(ALBuf->id); free(ALBuf->data); memset(ALBuf, 0, sizeof(*ALBuf)); free(ALBuf); } } al_endtry; ALCcontext_DecRef(Context); } AL_API ALboolean AL_APIENTRY alIsBuffer(ALuint buffer) { ALCcontext *Context; ALboolean result; Context = GetContextRef(); if(!Context) return AL_FALSE; result = ((!buffer || LookupBuffer(Context->Device, buffer)) ? AL_TRUE : AL_FALSE); ALCcontext_DecRef(Context); return result; } AL_API ALvoid AL_APIENTRY alBufferData(ALuint buffer, ALenum format, const ALvoid *data, ALsizei size, ALsizei freq) { enum UserFmtChannels SrcChannels; enum UserFmtType SrcType; ALCcontext *Context; ALuint FrameSize; ALenum NewFormat; ALbuffer *ALBuf; ALenum err; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; if((ALBuf=LookupBuffer(device, buffer)) == NULL) al_throwerr(Context, AL_INVALID_NAME); CHECK_VALUE(Context, size >= 0 && freq >= 0); if(DecomposeUserFormat(format, &SrcChannels, &SrcType) == AL_FALSE) al_throwerr(Context, AL_INVALID_ENUM); switch(SrcType) { case UserFmtByte: case UserFmtUByte: case UserFmtShort: case UserFmtUShort: case UserFmtFloat: FrameSize = FrameSizeFromUserFmt(SrcChannels, SrcType); CHECK_VALUE(Context, (size%FrameSize) == 0); err = LoadData(ALBuf, freq, format, size/FrameSize, SrcChannels, SrcType, data, AL_TRUE); if(err != AL_NO_ERROR) al_throwerr(Context, err); break; case UserFmtInt: case UserFmtUInt: case UserFmtByte3: case UserFmtUByte3: case UserFmtDouble: FrameSize = FrameSizeFromUserFmt(SrcChannels, SrcType); CHECK_VALUE(Context, (size%FrameSize) == 0); NewFormat = AL_FORMAT_MONO_FLOAT32; switch(SrcChannels) { case UserFmtMono: NewFormat = AL_FORMAT_MONO_FLOAT32; break; case UserFmtStereo: NewFormat = AL_FORMAT_STEREO_FLOAT32; break; case UserFmtRear: NewFormat = AL_FORMAT_REAR32; break; case UserFmtQuad: NewFormat = AL_FORMAT_QUAD32; break; case UserFmtX51: NewFormat = AL_FORMAT_51CHN32; break; case UserFmtX61: NewFormat = AL_FORMAT_61CHN32; break; case UserFmtX71: NewFormat = AL_FORMAT_71CHN32; break; } err = LoadData(ALBuf, freq, NewFormat, size/FrameSize, SrcChannels, SrcType, data, AL_TRUE); if(err != AL_NO_ERROR) al_throwerr(Context, err); break; case UserFmtMulaw: case UserFmtAlaw: FrameSize = FrameSizeFromUserFmt(SrcChannels, SrcType); CHECK_VALUE(Context, (size%FrameSize) == 0); NewFormat = AL_FORMAT_MONO16; switch(SrcChannels) { case UserFmtMono: NewFormat = AL_FORMAT_MONO16; break; case UserFmtStereo: NewFormat = AL_FORMAT_STEREO16; break; case UserFmtRear: NewFormat = AL_FORMAT_REAR16; break; case UserFmtQuad: NewFormat = AL_FORMAT_QUAD16; break; case UserFmtX51: NewFormat = AL_FORMAT_51CHN16; break; case UserFmtX61: NewFormat = AL_FORMAT_61CHN16; break; case UserFmtX71: NewFormat = AL_FORMAT_71CHN16; break; } err = LoadData(ALBuf, freq, NewFormat, size/FrameSize, SrcChannels, SrcType, data, AL_TRUE); if(err != AL_NO_ERROR) al_throwerr(Context, err); break; case UserFmtIMA4: /* Here is where things vary: * nVidia and Apple use 64+1 sample frames per block -> block_size=36 bytes per channel * Most PC sound software uses 2040+1 sample frames per block -> block_size=1024 bytes per channel */ FrameSize = ChannelsFromUserFmt(SrcChannels) * 36; CHECK_VALUE(Context, (size%FrameSize) == 0); NewFormat = AL_FORMAT_MONO16; switch(SrcChannels) { case UserFmtMono: NewFormat = AL_FORMAT_MONO16; break; case UserFmtStereo: NewFormat = AL_FORMAT_STEREO16; break; case UserFmtRear: NewFormat = AL_FORMAT_REAR16; break; case UserFmtQuad: NewFormat = AL_FORMAT_QUAD16; break; case UserFmtX51: NewFormat = AL_FORMAT_51CHN16; break; case UserFmtX61: NewFormat = AL_FORMAT_61CHN16; break; case UserFmtX71: NewFormat = AL_FORMAT_71CHN16; break; } err = LoadData(ALBuf, freq, NewFormat, size/FrameSize*65, SrcChannels, SrcType, data, AL_TRUE); if(err != AL_NO_ERROR) al_throwerr(Context, err); break; } } al_endtry; ALCcontext_DecRef(Context); } AL_API ALvoid AL_APIENTRY alBufferSubDataSOFT(ALuint buffer, ALenum format, const ALvoid *data, ALsizei offset, ALsizei length) { enum UserFmtChannels SrcChannels; enum UserFmtType SrcType; ALCcontext *Context; ALbuffer *ALBuf; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; ALuint original_align; ALuint Channels; ALuint Bytes; if((ALBuf=LookupBuffer(device, buffer)) == NULL) al_throwerr(Context, AL_INVALID_NAME); CHECK_VALUE(Context, length >= 0 && offset >= 0); if(DecomposeUserFormat(format, &SrcChannels, &SrcType) == AL_FALSE) al_throwerr(Context, AL_INVALID_ENUM); WriteLock(&ALBuf->lock); original_align = ((ALBuf->OriginalType == UserFmtIMA4) ? (ChannelsFromUserFmt(ALBuf->OriginalChannels)*36) : FrameSizeFromUserFmt(ALBuf->OriginalChannels, ALBuf->OriginalType)); if(SrcChannels != ALBuf->OriginalChannels || SrcType != ALBuf->OriginalType) { WriteUnlock(&ALBuf->lock); al_throwerr(Context, AL_INVALID_ENUM); } if(offset > ALBuf->OriginalSize || length > ALBuf->OriginalSize-offset || (offset%original_align) != 0 || (length%original_align) != 0) { WriteUnlock(&ALBuf->lock); al_throwerr(Context, AL_INVALID_VALUE); } Channels = ChannelsFromFmt(ALBuf->FmtChannels); Bytes = BytesFromFmt(ALBuf->FmtType); /* offset -> byte offset, length -> sample count */ if(SrcType == UserFmtIMA4) { offset = offset/36*65 * Bytes; length = length/original_align * 65; } else { ALuint OldBytes = BytesFromUserFmt(SrcType); offset = offset/OldBytes * Bytes; length = length/OldBytes/Channels; } ConvertData(&((ALubyte*)ALBuf->data)[offset], ALBuf->FmtType, data, SrcType, Channels, length); WriteUnlock(&ALBuf->lock); } al_endtry; ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alBufferSamplesSOFT(ALuint buffer, ALuint samplerate, ALenum internalformat, ALsizei samples, ALenum channels, ALenum type, const ALvoid *data) { ALCcontext *Context; ALbuffer *ALBuf; ALenum err; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; if((ALBuf=LookupBuffer(device, buffer)) == NULL) al_throwerr(Context, AL_INVALID_NAME); CHECK_VALUE(Context, samples >= 0 && samplerate != 0); if(IsValidType(type) == AL_FALSE || IsValidChannels(channels) == AL_FALSE) al_throwerr(Context, AL_INVALID_ENUM); err = LoadData(ALBuf, samplerate, internalformat, samples, channels, type, data, AL_FALSE); if(err != AL_NO_ERROR) al_throwerr(Context, err); } al_endtry; ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alBufferSubSamplesSOFT(ALuint buffer, ALsizei offset, ALsizei samples, ALenum channels, ALenum type, const ALvoid *data) { ALCcontext *Context; ALbuffer *ALBuf; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; ALuint FrameSize; if((ALBuf=LookupBuffer(device, buffer)) == NULL) al_throwerr(Context, AL_INVALID_NAME); CHECK_VALUE(Context, samples >= 0 && offset >= 0); if(IsValidType(type) == AL_FALSE) al_throwerr(Context, AL_INVALID_ENUM); WriteLock(&ALBuf->lock); FrameSize = FrameSizeFromFmt(ALBuf->FmtChannels, ALBuf->FmtType); if(channels != (ALenum)ALBuf->FmtChannels) { WriteUnlock(&ALBuf->lock); al_throwerr(Context, AL_INVALID_ENUM); } else if(offset > ALBuf->SampleLen || samples > ALBuf->SampleLen-offset) { WriteUnlock(&ALBuf->lock); al_throwerr(Context,AL_INVALID_VALUE); } /* offset -> byte offset */ offset *= FrameSize; ConvertData(&((ALubyte*)ALBuf->data)[offset], ALBuf->FmtType, data, type, ChannelsFromFmt(ALBuf->FmtChannels), samples); WriteUnlock(&ALBuf->lock); } al_endtry; ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alGetBufferSamplesSOFT(ALuint buffer, ALsizei offset, ALsizei samples, ALenum channels, ALenum type, ALvoid *data) { ALCcontext *Context; ALbuffer *ALBuf; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; ALuint FrameSize; if((ALBuf=LookupBuffer(device, buffer)) == NULL) al_throwerr(Context, AL_INVALID_NAME); CHECK_VALUE(Context, samples >= 0 && offset >= 0); if(IsValidType(type) == AL_FALSE) al_throwerr(Context, AL_INVALID_ENUM); ReadLock(&ALBuf->lock); FrameSize = FrameSizeFromFmt(ALBuf->FmtChannels, ALBuf->FmtType); if(channels != (ALenum)ALBuf->FmtChannels) { ReadUnlock(&ALBuf->lock); al_throwerr(Context, AL_INVALID_ENUM); } if(offset > ALBuf->SampleLen || samples > ALBuf->SampleLen-offset) { ReadUnlock(&ALBuf->lock); al_throwerr(Context,AL_INVALID_VALUE); } if(type == UserFmtIMA4 && (samples%65) != 0) { ReadUnlock(&ALBuf->lock); al_throwerr(Context, AL_INVALID_VALUE); } /* offset -> byte offset */ offset *= FrameSize; ConvertData(data, type, &((ALubyte*)ALBuf->data)[offset], ALBuf->FmtType, ChannelsFromFmt(ALBuf->FmtChannels), samples); ReadUnlock(&ALBuf->lock); } al_endtry; ALCcontext_DecRef(Context); } AL_API ALboolean AL_APIENTRY alIsBufferFormatSupportedSOFT(ALenum format) { enum FmtChannels DstChannels; enum FmtType DstType; ALCcontext *Context; ALboolean ret; Context = GetContextRef(); if(!Context) return AL_FALSE; ret = DecomposeFormat(format, &DstChannels, &DstType); ALCcontext_DecRef(Context); return ret; } AL_API void AL_APIENTRY alBufferf(ALuint buffer, ALenum param, ALfloat value) { ALCcontext *Context; (void)value; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; if(LookupBuffer(device, buffer) == NULL) al_throwerr(Context, AL_INVALID_NAME); switch(param) { default: al_throwerr(Context, AL_INVALID_ENUM); } } al_endtry; ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alBuffer3f(ALuint buffer, ALenum param, ALfloat value1, ALfloat value2, ALfloat value3) { ALCcontext *Context; (void)value1; (void)value2; (void)value3; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; if(LookupBuffer(device, buffer) == NULL) al_throwerr(Context, AL_INVALID_NAME); switch(param) { default: al_throwerr(Context, AL_INVALID_ENUM); } } al_endtry; ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alBufferfv(ALuint buffer, ALenum param, const ALfloat *values) { ALCcontext *Context; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; if(LookupBuffer(device, buffer) == NULL) al_throwerr(Context, AL_INVALID_NAME); CHECK_VALUE(Context, values); switch(param) { default: al_throwerr(Context, AL_INVALID_ENUM); } } al_endtry; ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alBufferi(ALuint buffer, ALenum param, ALint value) { ALCcontext *Context; (void)value; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; if(LookupBuffer(device, buffer) == NULL) al_throwerr(Context, AL_INVALID_NAME); switch(param) { default: al_throwerr(Context, AL_INVALID_ENUM); } } al_endtry; ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alBuffer3i(ALuint buffer, ALenum param, ALint value1, ALint value2, ALint value3) { ALCcontext *Context; (void)value1; (void)value2; (void)value3; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; if(LookupBuffer(device, buffer) == NULL) al_throwerr(Context, AL_INVALID_NAME); switch(param) { default: al_throwerr(Context, AL_INVALID_ENUM); } } al_endtry; ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alBufferiv(ALuint buffer, ALenum param, const ALint *values) { ALCcontext *Context; ALbuffer *ALBuf; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; if((ALBuf=LookupBuffer(device, buffer)) == NULL) al_throwerr(Context, AL_INVALID_NAME); CHECK_VALUE(Context, values); switch(param) { case AL_LOOP_POINTS_SOFT: WriteLock(&ALBuf->lock); if(ALBuf->ref != 0) { WriteUnlock(&ALBuf->lock); al_throwerr(Context, AL_INVALID_OPERATION); } if(values[0] >= values[1] || values[0] < 0 || values[1] > ALBuf->SampleLen) { WriteUnlock(&ALBuf->lock); al_throwerr(Context, AL_INVALID_VALUE); } ALBuf->LoopStart = values[0]; ALBuf->LoopEnd = values[1]; WriteUnlock(&ALBuf->lock); break; default: al_throwerr(Context, AL_INVALID_ENUM); } } al_endtry; ALCcontext_DecRef(Context); } AL_API ALvoid AL_APIENTRY alGetBufferf(ALuint buffer, ALenum param, ALfloat *value) { ALCcontext *Context; ALbuffer *Buffer; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; if((Buffer=LookupBuffer(device, buffer)) == NULL) al_throwerr(Context, AL_INVALID_NAME); CHECK_VALUE(Context, value); switch(param) { case AL_SEC_LENGTH_SOFT: ReadLock(&Buffer->lock); if(Buffer->SampleLen != 0) *value = Buffer->SampleLen / (ALfloat)Buffer->Frequency; else *value = 0.0f; ReadUnlock(&Buffer->lock); break; default: al_throwerr(Context, AL_INVALID_ENUM); } } al_endtry; ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alGetBuffer3f(ALuint buffer, ALenum param, ALfloat *value1, ALfloat *value2, ALfloat *value3) { ALCcontext *Context; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; if(LookupBuffer(device, buffer) == NULL) al_throwerr(Context, AL_INVALID_NAME); CHECK_VALUE(Context, value1 && value2 && value3); switch(param) { default: al_throwerr(Context, AL_INVALID_ENUM); } } al_endtry; ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alGetBufferfv(ALuint buffer, ALenum param, ALfloat *values) { ALCcontext *Context; switch(param) { case AL_SEC_LENGTH_SOFT: alGetBufferf(buffer, param, values); return; } Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; if(LookupBuffer(device, buffer) == NULL) al_throwerr(Context, AL_INVALID_NAME); CHECK_VALUE(Context, values); switch(param) { default: al_throwerr(Context, AL_INVALID_ENUM); } } al_endtry; ALCcontext_DecRef(Context); } AL_API ALvoid AL_APIENTRY alGetBufferi(ALuint buffer, ALenum param, ALint *value) { ALCcontext *Context; ALbuffer *Buffer; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; if((Buffer=LookupBuffer(device, buffer)) == NULL) al_throwerr(Context, AL_INVALID_NAME); CHECK_VALUE(Context, value); switch(param) { case AL_FREQUENCY: *value = Buffer->Frequency; break; case AL_BITS: *value = BytesFromFmt(Buffer->FmtType) * 8; break; case AL_CHANNELS: *value = ChannelsFromFmt(Buffer->FmtChannels); break; case AL_SIZE: ReadLock(&Buffer->lock); *value = Buffer->SampleLen * FrameSizeFromFmt(Buffer->FmtChannels, Buffer->FmtType); ReadUnlock(&Buffer->lock); break; case AL_INTERNAL_FORMAT_SOFT: *value = Buffer->Format; break; case AL_BYTE_LENGTH_SOFT: *value = Buffer->OriginalSize; break; case AL_SAMPLE_LENGTH_SOFT: *value = Buffer->SampleLen; break; default: al_throwerr(Context, AL_INVALID_ENUM); } } al_endtry; ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alGetBuffer3i(ALuint buffer, ALenum param, ALint *value1, ALint *value2, ALint *value3) { ALCcontext *Context; Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; if(LookupBuffer(device, buffer) == NULL) al_throwerr(Context, AL_INVALID_NAME); CHECK_VALUE(Context, value1 && value2 && value3); switch(param) { default: al_throwerr(Context, AL_INVALID_ENUM); } } al_endtry; ALCcontext_DecRef(Context); } AL_API void AL_APIENTRY alGetBufferiv(ALuint buffer, ALenum param, ALint *values) { ALCcontext *Context; ALbuffer *ALBuf; switch(param) { case AL_FREQUENCY: case AL_BITS: case AL_CHANNELS: case AL_SIZE: case AL_INTERNAL_FORMAT_SOFT: case AL_BYTE_LENGTH_SOFT: case AL_SAMPLE_LENGTH_SOFT: alGetBufferi(buffer, param, values); return; } Context = GetContextRef(); if(!Context) return; al_try { ALCdevice *device = Context->Device; if((ALBuf=LookupBuffer(device, buffer)) == NULL) al_throwerr(Context, AL_INVALID_NAME); CHECK_VALUE(Context, values); switch(param) { case AL_LOOP_POINTS_SOFT: ReadLock(&ALBuf->lock); values[0] = ALBuf->LoopStart; values[1] = ALBuf->LoopEnd; ReadUnlock(&ALBuf->lock); break; default: al_throwerr(Context, AL_INVALID_ENUM); } } al_endtry; ALCcontext_DecRef(Context); } typedef ALubyte ALmulaw; typedef ALubyte ALalaw; typedef ALubyte ALima4; typedef struct { ALbyte b[3]; } ALbyte3; extern ALbyte ALbyte3_size_is_not_3[(sizeof(ALbyte3)==sizeof(ALbyte[3]))?1:-1]; typedef struct { ALubyte b[3]; } ALubyte3; extern ALbyte ALubyte3_size_is_not_3[(sizeof(ALubyte3)==sizeof(ALubyte[3]))?1:-1]; static __inline ALshort DecodeMuLaw(ALmulaw val) { return muLawDecompressionTable[val]; } static ALmulaw EncodeMuLaw(ALshort val) { ALint mant, exp, sign; sign = (val>>8) & 0x80; if(sign) { /* -32768 doesn't properly negate on a short; it results in itself. * So clamp to -32767 */ val = maxi(val, -32767); val = -val; } val = mini(val, muLawClip); val += muLawBias; exp = muLawCompressTable[(val>>7) & 0xff]; mant = (val >> (exp+3)) & 0x0f; return ~(sign | (exp<<4) | mant); } static __inline ALshort DecodeALaw(ALalaw val) { return aLawDecompressionTable[val]; } static ALalaw EncodeALaw(ALshort val) { ALint mant, exp, sign; sign = ((~val) >> 8) & 0x80; if(!sign) { val = maxi(val, -32767); val = -val; } val = mini(val, aLawClip); if(val >= 256) { exp = aLawCompressTable[(val>>8) & 0x7f]; mant = (val >> (exp+3)) & 0x0f; } else { exp = 0; mant = val >> 4; } return ((exp<<4) | mant) ^ (sign^0x55); } static void DecodeIMA4Block(ALshort *dst, const ALima4 *src, ALint numchans) { ALint sample[MaxChannels], index[MaxChannels]; ALuint code[MaxChannels]; ALsizei j,k,c; for(c = 0;c < numchans;c++) { sample[c] = *(src++); sample[c] |= *(src++) << 8; sample[c] = (sample[c]^0x8000) - 32768; index[c] = *(src++); index[c] |= *(src++) << 8; index[c] = (index[c]^0x8000) - 32768; index[c] = clampi(index[c], 0, 88); dst[c] = sample[c]; } j = 1; while(j < 65) { for(c = 0;c < numchans;c++) { code[c] = *(src++); code[c] |= *(src++) << 8; code[c] |= *(src++) << 16; code[c] |= *(src++) << 24; } for(k = 0;k < 8;k++,j++) { for(c = 0;c < numchans;c++) { int nibble = code[c]&0xf; code[c] >>= 4; sample[c] += IMA4Codeword[nibble] * IMAStep_size[index[c]] / 8; sample[c] = clampi(sample[c], -32768, 32767); index[c] += IMA4Index_adjust[nibble]; index[c] = clampi(index[c], 0, 88); dst[j*numchans + c] = sample[c]; } } } } static void EncodeIMA4Block(ALima4 *dst, const ALshort *src, ALint *sample, ALint *index, ALint numchans) { ALsizei j,k,c; for(c = 0;c < numchans;c++) { int diff = src[c] - sample[c]; int step = IMAStep_size[index[c]]; int nibble; nibble = 0; if(diff < 0) { nibble = 0x8; diff = -diff; } diff = mini(step*2, diff); nibble |= (diff*8/step - 1) / 2; sample[c] += IMA4Codeword[nibble] * step / 8; sample[c] = clampi(sample[c], -32768, 32767); index[c] += IMA4Index_adjust[nibble]; index[c] = clampi(index[c], 0, 88); *(dst++) = sample[c] & 0xff; *(dst++) = (sample[c]>>8) & 0xff; *(dst++) = index[c] & 0xff; *(dst++) = (index[c]>>8) & 0xff; } j = 1; while(j < 65) { for(c = 0;c < numchans;c++) { for(k = 0;k < 8;k++) { int diff = src[(j+k)*numchans + c] - sample[c]; int step = IMAStep_size[index[c]]; int nibble; nibble = 0; if(diff < 0) { nibble = 0x8; diff = -diff; } diff = mini(step*2, diff); nibble |= (diff*8/step - 1) / 2; sample[c] += IMA4Codeword[nibble] * step / 8; sample[c] = clampi(sample[c], -32768, 32767); index[c] += IMA4Index_adjust[nibble]; index[c] = clampi(index[c], 0, 88); if(!(k&1)) *dst = nibble; else *(dst++) |= nibble<<4; } } j += 8; } } static __inline ALint DecodeByte3(ALbyte3 val) { if(IS_LITTLE_ENDIAN) return (val.b[2]<<16) | (((ALubyte)val.b[1])<<8) | ((ALubyte)val.b[0]); return (val.b[0]<<16) | (((ALubyte)val.b[1])<<8) | ((ALubyte)val.b[2]); } static __inline ALbyte3 EncodeByte3(ALint val) { if(IS_LITTLE_ENDIAN) { ALbyte3 ret = {{ val, val>>8, val>>16 }}; return ret; } else { ALbyte3 ret = {{ val>>16, val>>8, val }}; return ret; } } static __inline ALint DecodeUByte3(ALubyte3 val) { if(IS_LITTLE_ENDIAN) return (val.b[2]<<16) | (val.b[1]<<8) | (val.b[0]); return (val.b[0]<<16) | (val.b[1]<<8) | val.b[2]; } static __inline ALubyte3 EncodeUByte3(ALint val) { if(IS_LITTLE_ENDIAN) { ALubyte3 ret = {{ val, val>>8, val>>16 }}; return ret; } else { ALubyte3 ret = {{ val>>16, val>>8, val }}; return ret; } } static __inline ALbyte Conv_ALbyte_ALbyte(ALbyte val) { return val; } static __inline ALbyte Conv_ALbyte_ALubyte(ALubyte val) { return val-128; } static __inline ALbyte Conv_ALbyte_ALshort(ALshort val) { return val>>8; } static __inline ALbyte Conv_ALbyte_ALushort(ALushort val) { return (val>>8)-128; } static __inline ALbyte Conv_ALbyte_ALint(ALint val) { return val>>24; } static __inline ALbyte Conv_ALbyte_ALuint(ALuint val) { return (val>>24)-128; } static __inline ALbyte Conv_ALbyte_ALfloat(ALfloat val) { if(val > 1.0f) return 127; if(val < -1.0f) return -128; return (ALint)(val * 127.0f); } static __inline ALbyte Conv_ALbyte_ALdouble(ALdouble val) { if(val > 1.0) return 127; if(val < -1.0) return -128; return (ALint)(val * 127.0); } static __inline ALbyte Conv_ALbyte_ALmulaw(ALmulaw val) { return Conv_ALbyte_ALshort(DecodeMuLaw(val)); } static __inline ALbyte Conv_ALbyte_ALalaw(ALalaw val) { return Conv_ALbyte_ALshort(DecodeALaw(val)); } static __inline ALbyte Conv_ALbyte_ALbyte3(ALbyte3 val) { return DecodeByte3(val)>>16; } static __inline ALbyte Conv_ALbyte_ALubyte3(ALubyte3 val) { return (DecodeUByte3(val)>>16)-128; } static __inline ALubyte Conv_ALubyte_ALbyte(ALbyte val) { return val+128; } static __inline ALubyte Conv_ALubyte_ALubyte(ALubyte val) { return val; } static __inline ALubyte Conv_ALubyte_ALshort(ALshort val) { return (val>>8)+128; } static __inline ALubyte Conv_ALubyte_ALushort(ALushort val) { return val>>8; } static __inline ALubyte Conv_ALubyte_ALint(ALint val) { return (val>>24)+128; } static __inline ALubyte Conv_ALubyte_ALuint(ALuint val) { return val>>24; } static __inline ALubyte Conv_ALubyte_ALfloat(ALfloat val) { if(val > 1.0f) return 255; if(val < -1.0f) return 0; return (ALint)(val * 127.0f) + 128; } static __inline ALubyte Conv_ALubyte_ALdouble(ALdouble val) { if(val > 1.0) return 255; if(val < -1.0) return 0; return (ALint)(val * 127.0) + 128; } static __inline ALubyte Conv_ALubyte_ALmulaw(ALmulaw val) { return Conv_ALubyte_ALshort(DecodeMuLaw(val)); } static __inline ALubyte Conv_ALubyte_ALalaw(ALalaw val) { return Conv_ALubyte_ALshort(DecodeALaw(val)); } static __inline ALubyte Conv_ALubyte_ALbyte3(ALbyte3 val) { return (DecodeByte3(val)>>16)+128; } static __inline ALubyte Conv_ALubyte_ALubyte3(ALubyte3 val) { return DecodeUByte3(val)>>16; } static __inline ALshort Conv_ALshort_ALbyte(ALbyte val) { return val<<8; } static __inline ALshort Conv_ALshort_ALubyte(ALubyte val) { return (val-128)<<8; } static __inline ALshort Conv_ALshort_ALshort(ALshort val) { return val; } static __inline ALshort Conv_ALshort_ALushort(ALushort val) { return val-32768; } static __inline ALshort Conv_ALshort_ALint(ALint val) { return val>>16; } static __inline ALshort Conv_ALshort_ALuint(ALuint val) { return (val>>16)-32768; } static __inline ALshort Conv_ALshort_ALfloat(ALfloat val) { if(val > 1.0f) return 32767; if(val < -1.0f) return -32768; return (ALint)(val * 32767.0f); } static __inline ALshort Conv_ALshort_ALdouble(ALdouble val) { if(val > 1.0) return 32767; if(val < -1.0) return -32768; return (ALint)(val * 32767.0); } static __inline ALshort Conv_ALshort_ALmulaw(ALmulaw val) { return Conv_ALshort_ALshort(DecodeMuLaw(val)); } static __inline ALshort Conv_ALshort_ALalaw(ALalaw val) { return Conv_ALshort_ALshort(DecodeALaw(val)); } static __inline ALshort Conv_ALshort_ALbyte3(ALbyte3 val) { return DecodeByte3(val)>>8; } static __inline ALshort Conv_ALshort_ALubyte3(ALubyte3 val) { return (DecodeUByte3(val)>>8)-32768; } static __inline ALushort Conv_ALushort_ALbyte(ALbyte val) { return (val+128)<<8; } static __inline ALushort Conv_ALushort_ALubyte(ALubyte val) { return val<<8; } static __inline ALushort Conv_ALushort_ALshort(ALshort val) { return val+32768; } static __inline ALushort Conv_ALushort_ALushort(ALushort val) { return val; } static __inline ALushort Conv_ALushort_ALint(ALint val) { return (val>>16)+32768; } static __inline ALushort Conv_ALushort_ALuint(ALuint val) { return val>>16; } static __inline ALushort Conv_ALushort_ALfloat(ALfloat val) { if(val > 1.0f) return 65535; if(val < -1.0f) return 0; return (ALint)(val * 32767.0f) + 32768; } static __inline ALushort Conv_ALushort_ALdouble(ALdouble val) { if(val > 1.0) return 65535; if(val < -1.0) return 0; return (ALint)(val * 32767.0) + 32768; } static __inline ALushort Conv_ALushort_ALmulaw(ALmulaw val) { return Conv_ALushort_ALshort(DecodeMuLaw(val)); } static __inline ALushort Conv_ALushort_ALalaw(ALalaw val) { return Conv_ALushort_ALshort(DecodeALaw(val)); } static __inline ALushort Conv_ALushort_ALbyte3(ALbyte3 val) { return (DecodeByte3(val)>>8)+32768; } static __inline ALushort Conv_ALushort_ALubyte3(ALubyte3 val) { return DecodeUByte3(val)>>8; } static __inline ALint Conv_ALint_ALbyte(ALbyte val) { return val<<24; } static __inline ALint Conv_ALint_ALubyte(ALubyte val) { return (val-128)<<24; } static __inline ALint Conv_ALint_ALshort(ALshort val) { return val<<16; } static __inline ALint Conv_ALint_ALushort(ALushort val) { return (val-32768)<<16; } static __inline ALint Conv_ALint_ALint(ALint val) { return val; } static __inline ALint Conv_ALint_ALuint(ALuint val) { return val-2147483648u; } static __inline ALint Conv_ALint_ALfloat(ALfloat val) { if(val > 1.0f) return 2147483647; if(val < -1.0f) return -2147483647-1; return (ALint)(val * 2147483647.0); } static __inline ALint Conv_ALint_ALdouble(ALdouble val) { if(val > 1.0) return 2147483647; if(val < -1.0) return -2147483647-1; return (ALint)(val * 2147483647.0); } static __inline ALint Conv_ALint_ALmulaw(ALmulaw val) { return Conv_ALint_ALshort(DecodeMuLaw(val)); } static __inline ALint Conv_ALint_ALalaw(ALalaw val) { return Conv_ALint_ALshort(DecodeALaw(val)); } static __inline ALint Conv_ALint_ALbyte3(ALbyte3 val) { return DecodeByte3(val)<<8; } static __inline ALint Conv_ALint_ALubyte3(ALubyte3 val) { return (DecodeUByte3(val)-8388608)<<8; } static __inline ALuint Conv_ALuint_ALbyte(ALbyte val) { return (val+128)<<24; } static __inline ALuint Conv_ALuint_ALubyte(ALubyte val) { return val<<24; } static __inline ALuint Conv_ALuint_ALshort(ALshort val) { return (val+32768)<<16; } static __inline ALuint Conv_ALuint_ALushort(ALushort val) { return val<<16; } static __inline ALuint Conv_ALuint_ALint(ALint val) { return val+2147483648u; } static __inline ALuint Conv_ALuint_ALuint(ALuint val) { return val; } static __inline ALuint Conv_ALuint_ALfloat(ALfloat val) { if(val > 1.0f) return 4294967295u; if(val < -1.0f) return 0; return (ALint)(val * 2147483647.0) + 2147483648u; } static __inline ALuint Conv_ALuint_ALdouble(ALdouble val) { if(val > 1.0) return 4294967295u; if(val < -1.0) return 0; return (ALint)(val * 2147483647.0) + 2147483648u; } static __inline ALuint Conv_ALuint_ALmulaw(ALmulaw val) { return Conv_ALuint_ALshort(DecodeMuLaw(val)); } static __inline ALuint Conv_ALuint_ALalaw(ALalaw val) { return Conv_ALuint_ALshort(DecodeALaw(val)); } static __inline ALuint Conv_ALuint_ALbyte3(ALbyte3 val) { return (DecodeByte3(val)+8388608)<<8; } static __inline ALuint Conv_ALuint_ALubyte3(ALubyte3 val) { return DecodeUByte3(val)<<8; } static __inline ALfloat Conv_ALfloat_ALbyte(ALbyte val) { return val * (1.0f/127.0f); } static __inline ALfloat Conv_ALfloat_ALubyte(ALubyte val) { return (val-128) * (1.0f/127.0f); } static __inline ALfloat Conv_ALfloat_ALshort(ALshort val) { return val * (1.0f/32767.0f); } static __inline ALfloat Conv_ALfloat_ALushort(ALushort val) { return (val-32768) * (1.0f/32767.0f); } static __inline ALfloat Conv_ALfloat_ALint(ALint val) { return (ALfloat)(val * (1.0/2147483647.0)); } static __inline ALfloat Conv_ALfloat_ALuint(ALuint val) { return (ALfloat)((ALint)(val-2147483648u) * (1.0/2147483647.0)); } static __inline ALfloat Conv_ALfloat_ALfloat(ALfloat val) { return (val==val) ? val : 0.0f; } static __inline ALfloat Conv_ALfloat_ALdouble(ALdouble val) { return (val==val) ? (ALfloat)val : 0.0f; } static __inline ALfloat Conv_ALfloat_ALmulaw(ALmulaw val) { return Conv_ALfloat_ALshort(DecodeMuLaw(val)); } static __inline ALfloat Conv_ALfloat_ALalaw(ALalaw val) { return Conv_ALfloat_ALshort(DecodeALaw(val)); } static __inline ALfloat Conv_ALfloat_ALbyte3(ALbyte3 val) { return (ALfloat)(DecodeByte3(val) * (1.0/8388607.0)); } static __inline ALfloat Conv_ALfloat_ALubyte3(ALubyte3 val) { return (ALfloat)((DecodeUByte3(val)-8388608) * (1.0/8388607.0)); } static __inline ALdouble Conv_ALdouble_ALbyte(ALbyte val) { return val * (1.0/127.0); } static __inline ALdouble Conv_ALdouble_ALubyte(ALubyte val) { return (val-128) * (1.0/127.0); } static __inline ALdouble Conv_ALdouble_ALshort(ALshort val) { return val * (1.0/32767.0); } static __inline ALdouble Conv_ALdouble_ALushort(ALushort val) { return (val-32768) * (1.0/32767.0); } static __inline ALdouble Conv_ALdouble_ALint(ALint val) { return val * (1.0/2147483647.0); } static __inline ALdouble Conv_ALdouble_ALuint(ALuint val) { return (ALint)(val-2147483648u) * (1.0/2147483647.0); } static __inline ALdouble Conv_ALdouble_ALfloat(ALfloat val) { return (val==val) ? val : 0.0f; } static __inline ALdouble Conv_ALdouble_ALdouble(ALdouble val) { return (val==val) ? val : 0.0; } static __inline ALdouble Conv_ALdouble_ALmulaw(ALmulaw val) { return Conv_ALdouble_ALshort(DecodeMuLaw(val)); } static __inline ALdouble Conv_ALdouble_ALalaw(ALalaw val) { return Conv_ALdouble_ALshort(DecodeALaw(val)); } static __inline ALdouble Conv_ALdouble_ALbyte3(ALbyte3 val) { return DecodeByte3(val) * (1.0/8388607.0); } static __inline ALdouble Conv_ALdouble_ALubyte3(ALubyte3 val) { return (DecodeUByte3(val)-8388608) * (1.0/8388607.0); } #define DECL_TEMPLATE(T) \ static __inline ALmulaw Conv_ALmulaw_##T(T val) \ { return EncodeMuLaw(Conv_ALshort_##T(val)); } DECL_TEMPLATE(ALbyte) DECL_TEMPLATE(ALubyte) DECL_TEMPLATE(ALshort) DECL_TEMPLATE(ALushort) DECL_TEMPLATE(ALint) DECL_TEMPLATE(ALuint) DECL_TEMPLATE(ALfloat) DECL_TEMPLATE(ALdouble) static __inline ALmulaw Conv_ALmulaw_ALmulaw(ALmulaw val) { return val; } DECL_TEMPLATE(ALalaw) DECL_TEMPLATE(ALbyte3) DECL_TEMPLATE(ALubyte3) #undef DECL_TEMPLATE #define DECL_TEMPLATE(T) \ static __inline ALalaw Conv_ALalaw_##T(T val) \ { return EncodeALaw(Conv_ALshort_##T(val)); } DECL_TEMPLATE(ALbyte) DECL_TEMPLATE(ALubyte) DECL_TEMPLATE(ALshort) DECL_TEMPLATE(ALushort) DECL_TEMPLATE(ALint) DECL_TEMPLATE(ALuint) DECL_TEMPLATE(ALfloat) DECL_TEMPLATE(ALdouble) DECL_TEMPLATE(ALmulaw) static __inline ALalaw Conv_ALalaw_ALalaw(ALalaw val) { return val; } DECL_TEMPLATE(ALbyte3) DECL_TEMPLATE(ALubyte3) #undef DECL_TEMPLATE #define DECL_TEMPLATE(T) \ static __inline ALbyte3 Conv_ALbyte3_##T(T val) \ { return EncodeByte3(Conv_ALint_##T(val)>>8); } DECL_TEMPLATE(ALbyte) DECL_TEMPLATE(ALubyte) DECL_TEMPLATE(ALshort) DECL_TEMPLATE(ALushort) DECL_TEMPLATE(ALint) DECL_TEMPLATE(ALuint) DECL_TEMPLATE(ALfloat) DECL_TEMPLATE(ALdouble) DECL_TEMPLATE(ALmulaw) DECL_TEMPLATE(ALalaw) static __inline ALbyte3 Conv_ALbyte3_ALbyte3(ALbyte3 val) { return val; } DECL_TEMPLATE(ALubyte3) #undef DECL_TEMPLATE #define DECL_TEMPLATE(T) \ static __inline ALubyte3 Conv_ALubyte3_##T(T val) \ { return EncodeUByte3(Conv_ALuint_##T(val)>>8); } DECL_TEMPLATE(ALbyte) DECL_TEMPLATE(ALubyte) DECL_TEMPLATE(ALshort) DECL_TEMPLATE(ALushort) DECL_TEMPLATE(ALint) DECL_TEMPLATE(ALuint) DECL_TEMPLATE(ALfloat) DECL_TEMPLATE(ALdouble) DECL_TEMPLATE(ALmulaw) DECL_TEMPLATE(ALalaw) DECL_TEMPLATE(ALbyte3) static __inline ALubyte3 Conv_ALubyte3_ALubyte3(ALubyte3 val) { return val; } #undef DECL_TEMPLATE #define DECL_TEMPLATE(T1, T2) \ static void Convert_##T1##_##T2(T1 *dst, const T2 *src, ALuint numchans, \ ALuint len) \ { \ ALuint i, j; \ for(i = 0;i < len;i++) \ { \ for(j = 0;j < numchans;j++) \ *(dst++) = Conv_##T1##_##T2(*(src++)); \ } \ } DECL_TEMPLATE(ALbyte, ALbyte) DECL_TEMPLATE(ALbyte, ALubyte) DECL_TEMPLATE(ALbyte, ALshort) DECL_TEMPLATE(ALbyte, ALushort) DECL_TEMPLATE(ALbyte, ALint) DECL_TEMPLATE(ALbyte, ALuint) DECL_TEMPLATE(ALbyte, ALfloat) DECL_TEMPLATE(ALbyte, ALdouble) DECL_TEMPLATE(ALbyte, ALmulaw) DECL_TEMPLATE(ALbyte, ALalaw) DECL_TEMPLATE(ALbyte, ALbyte3) DECL_TEMPLATE(ALbyte, ALubyte3) DECL_TEMPLATE(ALubyte, ALbyte) DECL_TEMPLATE(ALubyte, ALubyte) DECL_TEMPLATE(ALubyte, ALshort) DECL_TEMPLATE(ALubyte, ALushort) DECL_TEMPLATE(ALubyte, ALint) DECL_TEMPLATE(ALubyte, ALuint) DECL_TEMPLATE(ALubyte, ALfloat) DECL_TEMPLATE(ALubyte, ALdouble) DECL_TEMPLATE(ALubyte, ALmulaw) DECL_TEMPLATE(ALubyte, ALalaw) DECL_TEMPLATE(ALubyte, ALbyte3) DECL_TEMPLATE(ALubyte, ALubyte3) DECL_TEMPLATE(ALshort, ALbyte) DECL_TEMPLATE(ALshort, ALubyte) DECL_TEMPLATE(ALshort, ALshort) DECL_TEMPLATE(ALshort, ALushort) DECL_TEMPLATE(ALshort, ALint) DECL_TEMPLATE(ALshort, ALuint) DECL_TEMPLATE(ALshort, ALfloat) DECL_TEMPLATE(ALshort, ALdouble) DECL_TEMPLATE(ALshort, ALmulaw) DECL_TEMPLATE(ALshort, ALalaw) DECL_TEMPLATE(ALshort, ALbyte3) DECL_TEMPLATE(ALshort, ALubyte3) DECL_TEMPLATE(ALushort, ALbyte) DECL_TEMPLATE(ALushort, ALubyte) DECL_TEMPLATE(ALushort, ALshort) DECL_TEMPLATE(ALushort, ALushort) DECL_TEMPLATE(ALushort, ALint) DECL_TEMPLATE(ALushort, ALuint) DECL_TEMPLATE(ALushort, ALfloat) DECL_TEMPLATE(ALushort, ALdouble) DECL_TEMPLATE(ALushort, ALmulaw) DECL_TEMPLATE(ALushort, ALalaw) DECL_TEMPLATE(ALushort, ALbyte3) DECL_TEMPLATE(ALushort, ALubyte3) DECL_TEMPLATE(ALint, ALbyte) DECL_TEMPLATE(ALint, ALubyte) DECL_TEMPLATE(ALint, ALshort) DECL_TEMPLATE(ALint, ALushort) DECL_TEMPLATE(ALint, ALint) DECL_TEMPLATE(ALint, ALuint) DECL_TEMPLATE(ALint, ALfloat) DECL_TEMPLATE(ALint, ALdouble) DECL_TEMPLATE(ALint, ALmulaw) DECL_TEMPLATE(ALint, ALalaw) DECL_TEMPLATE(ALint, ALbyte3) DECL_TEMPLATE(ALint, ALubyte3) DECL_TEMPLATE(ALuint, ALbyte) DECL_TEMPLATE(ALuint, ALubyte) DECL_TEMPLATE(ALuint, ALshort) DECL_TEMPLATE(ALuint, ALushort) DECL_TEMPLATE(ALuint, ALint) DECL_TEMPLATE(ALuint, ALuint) DECL_TEMPLATE(ALuint, ALfloat) DECL_TEMPLATE(ALuint, ALdouble) DECL_TEMPLATE(ALuint, ALmulaw) DECL_TEMPLATE(ALuint, ALalaw) DECL_TEMPLATE(ALuint, ALbyte3) DECL_TEMPLATE(ALuint, ALubyte3) DECL_TEMPLATE(ALfloat, ALbyte) DECL_TEMPLATE(ALfloat, ALubyte) DECL_TEMPLATE(ALfloat, ALshort) DECL_TEMPLATE(ALfloat, ALushort) DECL_TEMPLATE(ALfloat, ALint) DECL_TEMPLATE(ALfloat, ALuint) DECL_TEMPLATE(ALfloat, ALfloat) DECL_TEMPLATE(ALfloat, ALdouble) DECL_TEMPLATE(ALfloat, ALmulaw) DECL_TEMPLATE(ALfloat, ALalaw) DECL_TEMPLATE(ALfloat, ALbyte3) DECL_TEMPLATE(ALfloat, ALubyte3) DECL_TEMPLATE(ALdouble, ALbyte) DECL_TEMPLATE(ALdouble, ALubyte) DECL_TEMPLATE(ALdouble, ALshort) DECL_TEMPLATE(ALdouble, ALushort) DECL_TEMPLATE(ALdouble, ALint) DECL_TEMPLATE(ALdouble, ALuint) DECL_TEMPLATE(ALdouble, ALfloat) DECL_TEMPLATE(ALdouble, ALdouble) DECL_TEMPLATE(ALdouble, ALmulaw) DECL_TEMPLATE(ALdouble, ALalaw) DECL_TEMPLATE(ALdouble, ALbyte3) DECL_TEMPLATE(ALdouble, ALubyte3) DECL_TEMPLATE(ALmulaw, ALbyte) DECL_TEMPLATE(ALmulaw, ALubyte) DECL_TEMPLATE(ALmulaw, ALshort) DECL_TEMPLATE(ALmulaw, ALushort) DECL_TEMPLATE(ALmulaw, ALint) DECL_TEMPLATE(ALmulaw, ALuint) DECL_TEMPLATE(ALmulaw, ALfloat) DECL_TEMPLATE(ALmulaw, ALdouble) DECL_TEMPLATE(ALmulaw, ALmulaw) DECL_TEMPLATE(ALmulaw, ALalaw) DECL_TEMPLATE(ALmulaw, ALbyte3) DECL_TEMPLATE(ALmulaw, ALubyte3) DECL_TEMPLATE(ALalaw, ALbyte) DECL_TEMPLATE(ALalaw, ALubyte) DECL_TEMPLATE(ALalaw, ALshort) DECL_TEMPLATE(ALalaw, ALushort) DECL_TEMPLATE(ALalaw, ALint) DECL_TEMPLATE(ALalaw, ALuint) DECL_TEMPLATE(ALalaw, ALfloat) DECL_TEMPLATE(ALalaw, ALdouble) DECL_TEMPLATE(ALalaw, ALmulaw) DECL_TEMPLATE(ALalaw, ALalaw) DECL_TEMPLATE(ALalaw, ALbyte3) DECL_TEMPLATE(ALalaw, ALubyte3) DECL_TEMPLATE(ALbyte3, ALbyte) DECL_TEMPLATE(ALbyte3, ALubyte) DECL_TEMPLATE(ALbyte3, ALshort) DECL_TEMPLATE(ALbyte3, ALushort) DECL_TEMPLATE(ALbyte3, ALint) DECL_TEMPLATE(ALbyte3, ALuint) DECL_TEMPLATE(ALbyte3, ALfloat) DECL_TEMPLATE(ALbyte3, ALdouble) DECL_TEMPLATE(ALbyte3, ALmulaw) DECL_TEMPLATE(ALbyte3, ALalaw) DECL_TEMPLATE(ALbyte3, ALbyte3) DECL_TEMPLATE(ALbyte3, ALubyte3) DECL_TEMPLATE(ALubyte3, ALbyte) DECL_TEMPLATE(ALubyte3, ALubyte) DECL_TEMPLATE(ALubyte3, ALshort) DECL_TEMPLATE(ALubyte3, ALushort) DECL_TEMPLATE(ALubyte3, ALint) DECL_TEMPLATE(ALubyte3, ALuint) DECL_TEMPLATE(ALubyte3, ALfloat) DECL_TEMPLATE(ALubyte3, ALdouble) DECL_TEMPLATE(ALubyte3, ALmulaw) DECL_TEMPLATE(ALubyte3, ALalaw) DECL_TEMPLATE(ALubyte3, ALbyte3) DECL_TEMPLATE(ALubyte3, ALubyte3) #undef DECL_TEMPLATE #define DECL_TEMPLATE(T) \ static void Convert_##T##_ALima4(T *dst, const ALima4 *src, ALuint numchans, \ ALuint len) \ { \ ALshort tmp[65*MaxChannels]; /* Max samples an IMA4 frame can be */ \ ALuint i, j, k; \ \ i = 0; \ while(i < len) \ { \ DecodeIMA4Block(tmp, src, numchans); \ src += 36*numchans; \ \ for(j = 0;j < 65 && i < len;j++,i++) \ { \ for(k = 0;k < numchans;k++) \ *(dst++) = Conv_##T##_ALshort(tmp[j*numchans + k]); \ } \ } \ } DECL_TEMPLATE(ALbyte) DECL_TEMPLATE(ALubyte) DECL_TEMPLATE(ALshort) DECL_TEMPLATE(ALushort) DECL_TEMPLATE(ALint) DECL_TEMPLATE(ALuint) DECL_TEMPLATE(ALfloat) DECL_TEMPLATE(ALdouble) DECL_TEMPLATE(ALmulaw) DECL_TEMPLATE(ALalaw) DECL_TEMPLATE(ALbyte3) DECL_TEMPLATE(ALubyte3) #undef DECL_TEMPLATE #define DECL_TEMPLATE(T) \ static void Convert_ALima4_##T(ALima4 *dst, const T *src, ALuint numchans, \ ALuint len) \ { \ ALshort tmp[65*MaxChannels]; /* Max samples an IMA4 frame can be */ \ ALint sample[MaxChannels] = {0,0,0,0,0,0,0,0}; \ ALint index[MaxChannels] = {0,0,0,0,0,0,0,0}; \ ALuint i, j; \ \ for(i = 0;i < len;i += 65) \ { \ for(j = 0;j < 65*numchans;j++) \ tmp[j] = Conv_ALshort_##T(*(src++)); \ EncodeIMA4Block(dst, tmp, sample, index, numchans); \ dst += 36*numchans; \ } \ } DECL_TEMPLATE(ALbyte) DECL_TEMPLATE(ALubyte) DECL_TEMPLATE(ALshort) DECL_TEMPLATE(ALushort) DECL_TEMPLATE(ALint) DECL_TEMPLATE(ALuint) DECL_TEMPLATE(ALfloat) DECL_TEMPLATE(ALdouble) DECL_TEMPLATE(ALmulaw) DECL_TEMPLATE(ALalaw) static void Convert_ALima4_ALima4(ALima4 *dst, const ALima4 *src, ALuint numchans, ALuint numblocks) { memcpy(dst, src, numblocks*36*numchans); } DECL_TEMPLATE(ALbyte3) DECL_TEMPLATE(ALubyte3) #undef DECL_TEMPLATE #define DECL_TEMPLATE(T) \ static void Convert_##T(T *dst, const ALvoid *src, enum UserFmtType srcType, \ ALsizei numchans, ALsizei len) \ { \ switch(srcType) \ { \ case UserFmtByte: \ Convert_##T##_ALbyte(dst, src, numchans, len); \ break; \ case UserFmtUByte: \ Convert_##T##_ALubyte(dst, src, numchans, len); \ break; \ case UserFmtShort: \ Convert_##T##_ALshort(dst, src, numchans, len); \ break; \ case UserFmtUShort: \ Convert_##T##_ALushort(dst, src, numchans, len); \ break; \ case UserFmtInt: \ Convert_##T##_ALint(dst, src, numchans, len); \ break; \ case UserFmtUInt: \ Convert_##T##_ALuint(dst, src, numchans, len); \ break; \ case UserFmtFloat: \ Convert_##T##_ALfloat(dst, src, numchans, len); \ break; \ case UserFmtDouble: \ Convert_##T##_ALdouble(dst, src, numchans, len); \ break; \ case UserFmtMulaw: \ Convert_##T##_ALmulaw(dst, src, numchans, len); \ break; \ case UserFmtAlaw: \ Convert_##T##_ALalaw(dst, src, numchans, len); \ break; \ case UserFmtIMA4: \ Convert_##T##_ALima4(dst, src, numchans, len); \ break; \ case UserFmtByte3: \ Convert_##T##_ALbyte3(dst, src, numchans, len); \ break; \ case UserFmtUByte3: \ Convert_##T##_ALubyte3(dst, src, numchans, len); \ break; \ } \ } DECL_TEMPLATE(ALbyte) DECL_TEMPLATE(ALubyte) DECL_TEMPLATE(ALshort) DECL_TEMPLATE(ALushort) DECL_TEMPLATE(ALint) DECL_TEMPLATE(ALuint) DECL_TEMPLATE(ALfloat) DECL_TEMPLATE(ALdouble) DECL_TEMPLATE(ALmulaw) DECL_TEMPLATE(ALalaw) DECL_TEMPLATE(ALima4) DECL_TEMPLATE(ALbyte3) DECL_TEMPLATE(ALubyte3) #undef DECL_TEMPLATE static void ConvertData(ALvoid *dst, enum UserFmtType dstType, const ALvoid *src, enum UserFmtType srcType, ALsizei numchans, ALsizei len) { switch(dstType) { case UserFmtByte: Convert_ALbyte(dst, src, srcType, numchans, len); break; case UserFmtUByte: Convert_ALubyte(dst, src, srcType, numchans, len); break; case UserFmtShort: Convert_ALshort(dst, src, srcType, numchans, len); break; case UserFmtUShort: Convert_ALushort(dst, src, srcType, numchans, len); break; case UserFmtInt: Convert_ALint(dst, src, srcType, numchans, len); break; case UserFmtUInt: Convert_ALuint(dst, src, srcType, numchans, len); break; case UserFmtFloat: Convert_ALfloat(dst, src, srcType, numchans, len); break; case UserFmtDouble: Convert_ALdouble(dst, src, srcType, numchans, len); break; case UserFmtMulaw: Convert_ALmulaw(dst, src, srcType, numchans, len); break; case UserFmtAlaw: Convert_ALalaw(dst, src, srcType, numchans, len); break; case UserFmtIMA4: Convert_ALima4(dst, src, srcType, numchans, len); break; case UserFmtByte3: Convert_ALbyte3(dst, src, srcType, numchans, len); break; case UserFmtUByte3: Convert_ALubyte3(dst, src, srcType, numchans, len); break; } } /* * LoadData * * Loads the specified data into the buffer, using the specified formats. * Currently, the new format must have the same channel configuration as the * original format. */ static ALenum LoadData(ALbuffer *ALBuf, ALuint freq, ALenum NewFormat, ALsizei frames, enum UserFmtChannels SrcChannels, enum UserFmtType SrcType, const ALvoid *data, ALboolean storesrc) { ALuint NewChannels, NewBytes; enum FmtChannels DstChannels; enum FmtType DstType; ALuint64 newsize; ALvoid *temp; if(DecomposeFormat(NewFormat, &DstChannels, &DstType) == AL_FALSE || (long)SrcChannels != (long)DstChannels) return AL_INVALID_ENUM; NewChannels = ChannelsFromFmt(DstChannels); NewBytes = BytesFromFmt(DstType); newsize = frames; newsize *= NewBytes; newsize *= NewChannels; if(newsize > INT_MAX) return AL_OUT_OF_MEMORY; WriteLock(&ALBuf->lock); if(ALBuf->ref != 0) { WriteUnlock(&ALBuf->lock); return AL_INVALID_OPERATION; } temp = realloc(ALBuf->data, (size_t)newsize); if(!temp && newsize) { WriteUnlock(&ALBuf->lock); return AL_OUT_OF_MEMORY; } ALBuf->data = temp; if(data != NULL) ConvertData(ALBuf->data, DstType, data, SrcType, NewChannels, frames); if(storesrc) { ALBuf->OriginalChannels = SrcChannels; ALBuf->OriginalType = SrcType; if(SrcType == UserFmtIMA4) ALBuf->OriginalSize = frames / 65 * 36 * ChannelsFromUserFmt(SrcChannels); else ALBuf->OriginalSize = frames * FrameSizeFromUserFmt(SrcChannels, SrcType); } else { ALBuf->OriginalChannels = DstChannels; ALBuf->OriginalType = DstType; ALBuf->OriginalSize = frames * NewBytes * NewChannels; } ALBuf->Frequency = freq; ALBuf->FmtChannels = DstChannels; ALBuf->FmtType = DstType; ALBuf->Format = NewFormat; ALBuf->SampleLen = frames; ALBuf->LoopStart = 0; ALBuf->LoopEnd = ALBuf->SampleLen; WriteUnlock(&ALBuf->lock); return AL_NO_ERROR; } ALuint BytesFromUserFmt(enum UserFmtType type) { switch(type) { case UserFmtByte: return sizeof(ALbyte); case UserFmtUByte: return sizeof(ALubyte); case UserFmtShort: return sizeof(ALshort); case UserFmtUShort: return sizeof(ALushort); case UserFmtInt: return sizeof(ALint); case UserFmtUInt: return sizeof(ALuint); case UserFmtFloat: return sizeof(ALfloat); case UserFmtDouble: return sizeof(ALdouble); case UserFmtByte3: return sizeof(ALbyte3); case UserFmtUByte3: return sizeof(ALubyte3); case UserFmtMulaw: return sizeof(ALubyte); case UserFmtAlaw: return sizeof(ALubyte); case UserFmtIMA4: break; /* not handled here */ } return 0; } ALuint ChannelsFromUserFmt(enum UserFmtChannels chans) { switch(chans) { case UserFmtMono: return 1; case UserFmtStereo: return 2; case UserFmtRear: return 2; case UserFmtQuad: return 4; case UserFmtX51: return 6; case UserFmtX61: return 7; case UserFmtX71: return 8; } return 0; } static ALboolean DecomposeUserFormat(ALenum format, enum UserFmtChannels *chans, enum UserFmtType *type) { static const struct { ALenum format; enum UserFmtChannels channels; enum UserFmtType type; } list[] = { { AL_FORMAT_MONO8, UserFmtMono, UserFmtUByte }, { AL_FORMAT_MONO16, UserFmtMono, UserFmtShort }, { AL_FORMAT_MONO_FLOAT32, UserFmtMono, UserFmtFloat }, { AL_FORMAT_MONO_DOUBLE_EXT, UserFmtMono, UserFmtDouble }, { AL_FORMAT_MONO_IMA4, UserFmtMono, UserFmtIMA4 }, { AL_FORMAT_MONO_MULAW, UserFmtMono, UserFmtMulaw }, { AL_FORMAT_MONO_ALAW_EXT, UserFmtMono, UserFmtAlaw }, { AL_FORMAT_STEREO8, UserFmtStereo, UserFmtUByte }, { AL_FORMAT_STEREO16, UserFmtStereo, UserFmtShort }, { AL_FORMAT_STEREO_FLOAT32, UserFmtStereo, UserFmtFloat }, { AL_FORMAT_STEREO_DOUBLE_EXT, UserFmtStereo, UserFmtDouble }, { AL_FORMAT_STEREO_IMA4, UserFmtStereo, UserFmtIMA4 }, { AL_FORMAT_STEREO_MULAW, UserFmtStereo, UserFmtMulaw }, { AL_FORMAT_STEREO_ALAW_EXT, UserFmtStereo, UserFmtAlaw }, { AL_FORMAT_REAR8, UserFmtRear, UserFmtUByte }, { AL_FORMAT_REAR16, UserFmtRear, UserFmtShort }, { AL_FORMAT_REAR32, UserFmtRear, UserFmtFloat }, { AL_FORMAT_REAR_MULAW, UserFmtRear, UserFmtMulaw }, { AL_FORMAT_QUAD8_LOKI, UserFmtQuad, UserFmtUByte }, { AL_FORMAT_QUAD16_LOKI, UserFmtQuad, UserFmtShort }, { AL_FORMAT_QUAD8, UserFmtQuad, UserFmtUByte }, { AL_FORMAT_QUAD16, UserFmtQuad, UserFmtShort }, { AL_FORMAT_QUAD32, UserFmtQuad, UserFmtFloat }, { AL_FORMAT_QUAD_MULAW, UserFmtQuad, UserFmtMulaw }, { AL_FORMAT_51CHN8, UserFmtX51, UserFmtUByte }, { AL_FORMAT_51CHN16, UserFmtX51, UserFmtShort }, { AL_FORMAT_51CHN32, UserFmtX51, UserFmtFloat }, { AL_FORMAT_51CHN_MULAW, UserFmtX51, UserFmtMulaw }, { AL_FORMAT_61CHN8, UserFmtX61, UserFmtUByte }, { AL_FORMAT_61CHN16, UserFmtX61, UserFmtShort }, { AL_FORMAT_61CHN32, UserFmtX61, UserFmtFloat }, { AL_FORMAT_61CHN_MULAW, UserFmtX61, UserFmtMulaw }, { AL_FORMAT_71CHN8, UserFmtX71, UserFmtUByte }, { AL_FORMAT_71CHN16, UserFmtX71, UserFmtShort }, { AL_FORMAT_71CHN32, UserFmtX71, UserFmtFloat }, { AL_FORMAT_71CHN_MULAW, UserFmtX71, UserFmtMulaw }, }; ALuint i; for(i = 0;i < COUNTOF(list);i++) { if(list[i].format == format) { *chans = list[i].channels; *type = list[i].type; return AL_TRUE; } } return AL_FALSE; } ALuint BytesFromFmt(enum FmtType type) { switch(type) { case FmtByte: return sizeof(ALbyte); case FmtShort: return sizeof(ALshort); case FmtFloat: return sizeof(ALfloat); } return 0; } ALuint ChannelsFromFmt(enum FmtChannels chans) { switch(chans) { case FmtMono: return 1; case FmtStereo: return 2; case FmtRear: return 2; case FmtQuad: return 4; case FmtX51: return 6; case FmtX61: return 7; case FmtX71: return 8; } return 0; } static ALboolean DecomposeFormat(ALenum format, enum FmtChannels *chans, enum FmtType *type) { static const struct { ALenum format; enum FmtChannels channels; enum FmtType type; } list[] = { { AL_MONO8_SOFT, FmtMono, FmtByte }, { AL_MONO16_SOFT, FmtMono, FmtShort }, { AL_MONO32F_SOFT, FmtMono, FmtFloat }, { AL_STEREO8_SOFT, FmtStereo, FmtByte }, { AL_STEREO16_SOFT, FmtStereo, FmtShort }, { AL_STEREO32F_SOFT, FmtStereo, FmtFloat }, { AL_REAR8_SOFT, FmtRear, FmtByte }, { AL_REAR16_SOFT, FmtRear, FmtShort }, { AL_REAR32F_SOFT, FmtRear, FmtFloat }, { AL_FORMAT_QUAD8_LOKI, FmtQuad, FmtByte }, { AL_FORMAT_QUAD16_LOKI, FmtQuad, FmtShort }, { AL_QUAD8_SOFT, FmtQuad, FmtByte }, { AL_QUAD16_SOFT, FmtQuad, FmtShort }, { AL_QUAD32F_SOFT, FmtQuad, FmtFloat }, { AL_5POINT1_8_SOFT, FmtX51, FmtByte }, { AL_5POINT1_16_SOFT, FmtX51, FmtShort }, { AL_5POINT1_32F_SOFT, FmtX51, FmtFloat }, { AL_6POINT1_8_SOFT, FmtX61, FmtByte }, { AL_6POINT1_16_SOFT, FmtX61, FmtShort }, { AL_6POINT1_32F_SOFT, FmtX61, FmtFloat }, { AL_7POINT1_8_SOFT, FmtX71, FmtByte }, { AL_7POINT1_16_SOFT, FmtX71, FmtShort }, { AL_7POINT1_32F_SOFT, FmtX71, FmtFloat }, }; ALuint i; for(i = 0;i < COUNTOF(list);i++) { if(list[i].format == format) { *chans = list[i].channels; *type = list[i].type; return AL_TRUE; } } return AL_FALSE; } static ALboolean IsValidType(ALenum type) { switch(type) { case AL_BYTE_SOFT: case AL_UNSIGNED_BYTE_SOFT: case AL_SHORT_SOFT: case AL_UNSIGNED_SHORT_SOFT: case AL_INT_SOFT: case AL_UNSIGNED_INT_SOFT: case AL_FLOAT_SOFT: case AL_DOUBLE_SOFT: case AL_BYTE3_SOFT: case AL_UNSIGNED_BYTE3_SOFT: return AL_TRUE; } return AL_FALSE; } static ALboolean IsValidChannels(ALenum channels) { switch(channels) { case AL_MONO_SOFT: case AL_STEREO_SOFT: case AL_REAR_SOFT: case AL_QUAD_SOFT: case AL_5POINT1_SOFT: case AL_6POINT1_SOFT: case AL_7POINT1_SOFT: return AL_TRUE; } return AL_FALSE; } /* * ReleaseALBuffers() * * INTERNAL: Called to destroy any buffers that still exist on the device */ ALvoid ReleaseALBuffers(ALCdevice *device) { ALsizei i; for(i = 0;i < device->BufferMap.size;i++) { ALbuffer *temp = device->BufferMap.array[i].value; device->BufferMap.array[i].value = NULL; free(temp->data); FreeThunkEntry(temp->id); memset(temp, 0, sizeof(ALbuffer)); free(temp); } }