rlm@0: /**
rlm@0:  * OpenAL cross platform audio library
rlm@0:  * Copyright (C) 1999-2007 by authors.
rlm@0:  * This library is free software; you can redistribute it and/or
rlm@0:  *  modify it under the terms of the GNU Library General Public
rlm@0:  *  License as published by the Free Software Foundation; either
rlm@0:  *  version 2 of the License, or (at your option) any later version.
rlm@0:  *
rlm@0:  * This library is distributed in the hope that it will be useful,
rlm@0:  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
rlm@0:  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
rlm@0:  *  Library General Public License for more details.
rlm@0:  *
rlm@0:  * You should have received a copy of the GNU Library General Public
rlm@0:  *  License along with this library; if not, write to the
rlm@0:  *  Free Software Foundation, Inc., 59 Temple Place - Suite 330,
rlm@0:  *  Boston, MA  02111-1307, USA.
rlm@0:  * Or go to http://www.gnu.org/copyleft/lgpl.html
rlm@0:  */
rlm@0: 
rlm@0: #include "config.h"
rlm@0: 
rlm@0: #include <stdlib.h>
rlm@0: #include <stdio.h>
rlm@0: #include <assert.h>
rlm@0: #include <limits.h>
rlm@0: 
rlm@0: #include "alMain.h"
rlm@0: #include "AL/al.h"
rlm@0: #include "AL/alc.h"
rlm@0: #include "alError.h"
rlm@0: #include "alBuffer.h"
rlm@0: #include "alThunk.h"
rlm@0: 
rlm@0: 
rlm@0: static ALenum LoadData(ALbuffer *ALBuf, ALuint freq, ALenum NewFormat, ALsizei frames, enum UserFmtChannels chans, enum UserFmtType type, const ALvoid *data, ALboolean storesrc);
rlm@0: static void ConvertData(ALvoid *dst, enum UserFmtType dstType, const ALvoid *src, enum UserFmtType srcType, ALsizei numchans, ALsizei len);
rlm@0: static ALboolean IsValidType(ALenum type);
rlm@0: static ALboolean IsValidChannels(ALenum channels);
rlm@0: 
rlm@0: #define LookupBuffer(m, k) ((ALbuffer*)LookupUIntMapKey(&(m), (k)))
rlm@0: 
rlm@0: 
rlm@0: /*
rlm@0:  * Global Variables
rlm@0:  */
rlm@0: 
rlm@0: /* IMA ADPCM Stepsize table */
rlm@0: static const long IMAStep_size[89] = {
rlm@0:        7,    8,    9,   10,   11,   12,   13,   14,   16,   17,   19,
rlm@0:       21,   23,   25,   28,   31,   34,   37,   41,   45,   50,   55,
rlm@0:       60,   66,   73,   80,   88,   97,  107,  118,  130,  143,  157,
rlm@0:      173,  190,  209,  230,  253,  279,  307,  337,  371,  408,  449,
rlm@0:      494,  544,  598,  658,  724,  796,  876,  963, 1060, 1166, 1282,
rlm@0:     1411, 1552, 1707, 1878, 2066, 2272, 2499, 2749, 3024, 3327, 3660,
rlm@0:     4026, 4428, 4871, 5358, 5894, 6484, 7132, 7845, 8630, 9493,10442,
rlm@0:    11487,12635,13899,15289,16818,18500,20350,22358,24633,27086,29794,
rlm@0:    32767
rlm@0: };
rlm@0: 
rlm@0: /* IMA4 ADPCM Codeword decode table */
rlm@0: static const long IMA4Codeword[16] = {
rlm@0:     1, 3, 5, 7, 9, 11, 13, 15,
rlm@0:    -1,-3,-5,-7,-9,-11,-13,-15,
rlm@0: };
rlm@0: 
rlm@0: /* IMA4 ADPCM Step index adjust decode table */
rlm@0: static const long IMA4Index_adjust[16] = {
rlm@0:    -1,-1,-1,-1, 2, 4, 6, 8,
rlm@0:    -1,-1,-1,-1, 2, 4, 6, 8
rlm@0: };
rlm@0: 
rlm@0: /* A quick'n'dirty lookup table to decode a muLaw-encoded byte sample into a
rlm@0:  * signed 16-bit sample */
rlm@0: static const ALshort muLawDecompressionTable[256] = {
rlm@0:     -32124,-31100,-30076,-29052,-28028,-27004,-25980,-24956,
rlm@0:     -23932,-22908,-21884,-20860,-19836,-18812,-17788,-16764,
rlm@0:     -15996,-15484,-14972,-14460,-13948,-13436,-12924,-12412,
rlm@0:     -11900,-11388,-10876,-10364, -9852, -9340, -8828, -8316,
rlm@0:      -7932, -7676, -7420, -7164, -6908, -6652, -6396, -6140,
rlm@0:      -5884, -5628, -5372, -5116, -4860, -4604, -4348, -4092,
rlm@0:      -3900, -3772, -3644, -3516, -3388, -3260, -3132, -3004,
rlm@0:      -2876, -2748, -2620, -2492, -2364, -2236, -2108, -1980,
rlm@0:      -1884, -1820, -1756, -1692, -1628, -1564, -1500, -1436,
rlm@0:      -1372, -1308, -1244, -1180, -1116, -1052,  -988,  -924,
rlm@0:       -876,  -844,  -812,  -780,  -748,  -716,  -684,  -652,
rlm@0:       -620,  -588,  -556,  -524,  -492,  -460,  -428,  -396,
rlm@0:       -372,  -356,  -340,  -324,  -308,  -292,  -276,  -260,
rlm@0:       -244,  -228,  -212,  -196,  -180,  -164,  -148,  -132,
rlm@0:       -120,  -112,  -104,   -96,   -88,   -80,   -72,   -64,
rlm@0:        -56,   -48,   -40,   -32,   -24,   -16,    -8,     0,
rlm@0:      32124, 31100, 30076, 29052, 28028, 27004, 25980, 24956,
rlm@0:      23932, 22908, 21884, 20860, 19836, 18812, 17788, 16764,
rlm@0:      15996, 15484, 14972, 14460, 13948, 13436, 12924, 12412,
rlm@0:      11900, 11388, 10876, 10364,  9852,  9340,  8828,  8316,
rlm@0:       7932,  7676,  7420,  7164,  6908,  6652,  6396,  6140,
rlm@0:       5884,  5628,  5372,  5116,  4860,  4604,  4348,  4092,
rlm@0:       3900,  3772,  3644,  3516,  3388,  3260,  3132,  3004,
rlm@0:       2876,  2748,  2620,  2492,  2364,  2236,  2108,  1980,
rlm@0:       1884,  1820,  1756,  1692,  1628,  1564,  1500,  1436,
rlm@0:       1372,  1308,  1244,  1180,  1116,  1052,   988,   924,
rlm@0:        876,   844,   812,   780,   748,   716,   684,   652,
rlm@0:        620,   588,   556,   524,   492,   460,   428,   396,
rlm@0:        372,   356,   340,   324,   308,   292,   276,   260,
rlm@0:        244,   228,   212,   196,   180,   164,   148,   132,
rlm@0:        120,   112,   104,    96,    88,    80,    72,    64,
rlm@0:         56,    48,    40,    32,    24,    16,     8,     0
rlm@0: };
rlm@0: 
rlm@0: /* Values used when encoding a muLaw sample */
rlm@0: static const int muLawBias = 0x84;
rlm@0: static const int muLawClip = 32635;
rlm@0: static const char muLawCompressTable[256] =
rlm@0: {
rlm@0:      0,0,1,1,2,2,2,2,3,3,3,3,3,3,3,3,
rlm@0:      4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,
rlm@0:      5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
rlm@0:      5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
rlm@0:      6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
rlm@0:      6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
rlm@0:      6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
rlm@0:      6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
rlm@0:      7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
rlm@0:      7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
rlm@0:      7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
rlm@0:      7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
rlm@0:      7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
rlm@0:      7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
rlm@0:      7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
rlm@0:      7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7
rlm@0: };
rlm@0: 
rlm@0: /*
rlm@0:  *    alGenBuffers(ALsizei n, ALuint *buffers)
rlm@0:  *
rlm@0:  *    Generates n AL Buffers, and stores the Buffers Names in the array pointed
rlm@0:  *    to by buffers
rlm@0:  */
rlm@0: AL_API ALvoid AL_APIENTRY alGenBuffers(ALsizei n, ALuint *buffers)
rlm@0: {
rlm@0:     ALCcontext *Context;
rlm@0:     ALsizei i=0;
rlm@0: 
rlm@0:     Context = GetLockedContext();
rlm@0:     if(!Context) return;
rlm@0: 
rlm@0:     /* Check that we are actually generating some Buffers */
rlm@0:     if(n < 0 || IsBadWritePtr((void*)buffers, n * sizeof(ALuint)))
rlm@0:         alSetError(Context, AL_INVALID_VALUE);
rlm@0:     else
rlm@0:     {
rlm@0:         ALCdevice *device = Context->Device;
rlm@0:         ALenum err;
rlm@0: 
rlm@0:         // Create all the new Buffers
rlm@0:         while(i < n)
rlm@0:         {
rlm@0:             ALbuffer *buffer = calloc(1, sizeof(ALbuffer));
rlm@0:             if(!buffer)
rlm@0:             {
rlm@0:                 alSetError(Context, AL_OUT_OF_MEMORY);
rlm@0:                 alDeleteBuffers(i, buffers);
rlm@0:                 break;
rlm@0:             }
rlm@0: 
rlm@0:             err = NewThunkEntry(&buffer->buffer);
rlm@0:             if(err == AL_NO_ERROR)
rlm@0:                 err = InsertUIntMapEntry(&device->BufferMap, buffer->buffer, buffer);
rlm@0:             if(err != AL_NO_ERROR)
rlm@0:             {
rlm@0:                 FreeThunkEntry(buffer->buffer);
rlm@0:                 memset(buffer, 0, sizeof(ALbuffer));
rlm@0:                 free(buffer);
rlm@0: 
rlm@0:                 alSetError(Context, err);
rlm@0:                 alDeleteBuffers(i, buffers);
rlm@0:                 break;
rlm@0:             }
rlm@0:             buffers[i++] = buffer->buffer;
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(Context);
rlm@0: }
rlm@0: 
rlm@0: /*
rlm@0:  *    alDeleteBuffers(ALsizei n, ALuint *buffers)
rlm@0:  *
rlm@0:  *    Deletes the n AL Buffers pointed to by buffers
rlm@0:  */
rlm@0: AL_API ALvoid AL_APIENTRY alDeleteBuffers(ALsizei n, const ALuint *buffers)
rlm@0: {
rlm@0:     ALCcontext *Context;
rlm@0:     ALCdevice *device;
rlm@0:     ALboolean Failed;
rlm@0:     ALbuffer *ALBuf;
rlm@0:     ALsizei i;
rlm@0: 
rlm@0:     Context = GetLockedContext();
rlm@0:     if(!Context) return;
rlm@0: 
rlm@0:     Failed = AL_TRUE;
rlm@0:     device = Context->Device;
rlm@0:     /* Check we are actually Deleting some Buffers */
rlm@0:     if(n < 0)
rlm@0:         alSetError(Context, AL_INVALID_VALUE);
rlm@0:     else
rlm@0:     {
rlm@0:         Failed = AL_FALSE;
rlm@0: 
rlm@0:         /* Check that all the buffers are valid and can actually be deleted */
rlm@0:         for(i = 0;i < n;i++)
rlm@0:         {
rlm@0:             if(!buffers[i])
rlm@0:                 continue;
rlm@0: 
rlm@0:             /* Check for valid Buffer ID */
rlm@0:             if((ALBuf=LookupBuffer(device->BufferMap, buffers[i])) == NULL)
rlm@0:             {
rlm@0:                 alSetError(Context, AL_INVALID_NAME);
rlm@0:                 Failed = AL_TRUE;
rlm@0:                 break;
rlm@0:             }
rlm@0:             else if(ALBuf->refcount != 0)
rlm@0:             {
rlm@0:                 /* Buffer still in use, cannot be deleted */
rlm@0:                 alSetError(Context, AL_INVALID_OPERATION);
rlm@0:                 Failed = AL_TRUE;
rlm@0:                 break;
rlm@0:             }
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     /* If all the Buffers were valid (and have Reference Counts of 0), then we
rlm@0:      * can delete them */
rlm@0:     if(!Failed)
rlm@0:     {
rlm@0:         for(i = 0;i < n;i++)
rlm@0:         {
rlm@0:             if((ALBuf=LookupBuffer(device->BufferMap, buffers[i])) == NULL)
rlm@0:                 continue;
rlm@0: 
rlm@0:             /* Release the memory used to store audio data */
rlm@0:             free(ALBuf->data);
rlm@0: 
rlm@0:             /* Release buffer structure */
rlm@0:             RemoveUIntMapKey(&device->BufferMap, ALBuf->buffer);
rlm@0:             FreeThunkEntry(ALBuf->buffer);
rlm@0: 
rlm@0:             memset(ALBuf, 0, sizeof(ALbuffer));
rlm@0:             free(ALBuf);
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(Context);
rlm@0: }
rlm@0: 
rlm@0: /*
rlm@0:  *    alIsBuffer(ALuint buffer)
rlm@0:  *
rlm@0:  *    Checks if buffer is a valid Buffer Name
rlm@0:  */
rlm@0: AL_API ALboolean AL_APIENTRY alIsBuffer(ALuint buffer)
rlm@0: {
rlm@0:     ALCcontext *Context;
rlm@0:     ALboolean  result;
rlm@0: 
rlm@0:     Context = GetLockedContext();
rlm@0:     if(!Context) return AL_FALSE;
rlm@0: 
rlm@0:     result = ((!buffer || LookupBuffer(Context->Device->BufferMap, buffer)) ?
rlm@0:               AL_TRUE : AL_FALSE);
rlm@0: 
rlm@0:     UnlockContext(Context);
rlm@0: 
rlm@0:     return result;
rlm@0: }
rlm@0: 
rlm@0: /*
rlm@0:  *    alBufferData(ALuint buffer, ALenum format, const ALvoid *data,
rlm@0:  *                 ALsizei size, ALsizei freq)
rlm@0:  *
rlm@0:  *    Fill buffer with audio data
rlm@0:  */
rlm@0: AL_API ALvoid AL_APIENTRY alBufferData(ALuint buffer,ALenum format,const ALvoid *data,ALsizei size,ALsizei freq)
rlm@0: {
rlm@0:     enum UserFmtChannels SrcChannels;
rlm@0:     enum UserFmtType SrcType;
rlm@0:     ALCcontext *Context;
rlm@0:     ALCdevice *device;
rlm@0:     ALbuffer *ALBuf;
rlm@0:     ALenum err;
rlm@0: 
rlm@0:     Context = GetLockedContext();
rlm@0:     if(!Context) return;
rlm@0: 
rlm@0:     device = Context->Device;
rlm@0:     if((ALBuf=LookupBuffer(device->BufferMap, buffer)) == NULL)
rlm@0:         alSetError(Context, AL_INVALID_NAME);
rlm@0:     else if(ALBuf->refcount != 0)
rlm@0:         alSetError(Context, AL_INVALID_VALUE);
rlm@0:     else if(size < 0 || freq < 0)
rlm@0:         alSetError(Context, AL_INVALID_VALUE);
rlm@0:     else if(DecomposeUserFormat(format, &SrcChannels, &SrcType) == AL_FALSE)
rlm@0:         alSetError(Context, AL_INVALID_ENUM);
rlm@0:     else switch(SrcType)
rlm@0:     {
rlm@0:         case UserFmtByte:
rlm@0:         case UserFmtUByte:
rlm@0:         case UserFmtShort:
rlm@0:         case UserFmtUShort:
rlm@0:         case UserFmtInt:
rlm@0:         case UserFmtUInt:
rlm@0:         case UserFmtFloat: {
rlm@0:             ALuint FrameSize = FrameSizeFromUserFmt(SrcChannels, SrcType);
rlm@0:             if((size%FrameSize) != 0)
rlm@0:                 err = AL_INVALID_VALUE;
rlm@0:             else
rlm@0:                 err = LoadData(ALBuf, freq, format, size/FrameSize,
rlm@0:                                SrcChannels, SrcType, data, AL_TRUE);
rlm@0:             if(err != AL_NO_ERROR)
rlm@0:                 alSetError(Context, err);
rlm@0:         }   break;
rlm@0: 
rlm@0:         case UserFmtByte3:
rlm@0:         case UserFmtUByte3:
rlm@0:         case UserFmtDouble: {
rlm@0:             ALuint FrameSize = FrameSizeFromUserFmt(SrcChannels, SrcType);
rlm@0:             ALenum NewFormat = AL_FORMAT_MONO_FLOAT32;
rlm@0:             switch(SrcChannels)
rlm@0:             {
rlm@0:                 case UserFmtMono: NewFormat = AL_FORMAT_MONO_FLOAT32; break;
rlm@0:                 case UserFmtStereo: NewFormat = AL_FORMAT_STEREO_FLOAT32; break;
rlm@0:                 case UserFmtRear: NewFormat = AL_FORMAT_REAR32; break;
rlm@0:                 case UserFmtQuad: NewFormat = AL_FORMAT_QUAD32; break;
rlm@0:                 case UserFmtX51: NewFormat = AL_FORMAT_51CHN32; break;
rlm@0:                 case UserFmtX61: NewFormat = AL_FORMAT_61CHN32; break;
rlm@0:                 case UserFmtX71: NewFormat = AL_FORMAT_71CHN32; break;
rlm@0:             }
rlm@0:             if((size%FrameSize) != 0)
rlm@0:                 err = AL_INVALID_VALUE;
rlm@0:             else
rlm@0:                 err = LoadData(ALBuf, freq, NewFormat, size/FrameSize,
rlm@0:                                SrcChannels, SrcType, data, AL_TRUE);
rlm@0:             if(err != AL_NO_ERROR)
rlm@0:                 alSetError(Context, err);
rlm@0:         }   break;
rlm@0: 
rlm@0:         case UserFmtMulaw:
rlm@0:         case UserFmtIMA4: {
rlm@0:             /* Here is where things vary:
rlm@0:              * nVidia and Apple use 64+1 sample frames per block -> block_size=36 bytes per channel
rlm@0:              * Most PC sound software uses 2040+1 sample frames per block -> block_size=1024 bytes per channel
rlm@0:              */
rlm@0:             ALuint FrameSize = (SrcType == UserFmtIMA4) ?
rlm@0:                                (ChannelsFromUserFmt(SrcChannels) * 36) :
rlm@0:                                FrameSizeFromUserFmt(SrcChannels, SrcType);
rlm@0:             ALenum NewFormat = AL_FORMAT_MONO16;
rlm@0:             switch(SrcChannels)
rlm@0:             {
rlm@0:                 case UserFmtMono: NewFormat = AL_FORMAT_MONO16; break;
rlm@0:                 case UserFmtStereo: NewFormat = AL_FORMAT_STEREO16; break;
rlm@0:                 case UserFmtRear: NewFormat = AL_FORMAT_REAR16; break;
rlm@0:                 case UserFmtQuad: NewFormat = AL_FORMAT_QUAD16; break;
rlm@0:                 case UserFmtX51: NewFormat = AL_FORMAT_51CHN16; break;
rlm@0:                 case UserFmtX61: NewFormat = AL_FORMAT_61CHN16; break;
rlm@0:                 case UserFmtX71: NewFormat = AL_FORMAT_71CHN16; break;
rlm@0:             }
rlm@0:             if((size%FrameSize) != 0)
rlm@0:                 err = AL_INVALID_VALUE;
rlm@0:             else
rlm@0:                 err = LoadData(ALBuf, freq, NewFormat, size/FrameSize,
rlm@0:                                SrcChannels, SrcType, data, AL_TRUE);
rlm@0:             if(err != AL_NO_ERROR)
rlm@0:                 alSetError(Context, err);
rlm@0:         }   break;
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(Context);
rlm@0: }
rlm@0: 
rlm@0: /*
rlm@0:  *    alBufferSubDataSOFT(ALuint buffer, ALenum format, const ALvoid *data,
rlm@0:  *                        ALsizei offset, ALsizei length)
rlm@0:  *
rlm@0:  *    Update buffer's audio data
rlm@0:  */
rlm@0: AL_API ALvoid AL_APIENTRY alBufferSubDataSOFT(ALuint buffer,ALenum format,const ALvoid *data,ALsizei offset,ALsizei length)
rlm@0: {
rlm@0:     enum UserFmtChannels SrcChannels;
rlm@0:     enum UserFmtType SrcType;
rlm@0:     ALCcontext *Context;
rlm@0:     ALCdevice  *device;
rlm@0:     ALbuffer   *ALBuf;
rlm@0: 
rlm@0:     Context = GetLockedContext();
rlm@0:     if(!Context) return;
rlm@0: 
rlm@0:     device = Context->Device;
rlm@0:     if((ALBuf=LookupBuffer(device->BufferMap, buffer)) == NULL)
rlm@0:         alSetError(Context, AL_INVALID_NAME);
rlm@0:     else if(length < 0 || offset < 0 || (length > 0 && data == NULL))
rlm@0:         alSetError(Context, AL_INVALID_VALUE);
rlm@0:     else if(DecomposeUserFormat(format, &SrcChannels, &SrcType) == AL_FALSE ||
rlm@0:             SrcChannels != ALBuf->OriginalChannels ||
rlm@0:             SrcType != ALBuf->OriginalType)
rlm@0:         alSetError(Context, AL_INVALID_ENUM);
rlm@0:     else if(offset > ALBuf->OriginalSize ||
rlm@0:             length > ALBuf->OriginalSize-offset ||
rlm@0:             (offset%ALBuf->OriginalAlign) != 0 ||
rlm@0:             (length%ALBuf->OriginalAlign) != 0)
rlm@0:         alSetError(Context, AL_INVALID_VALUE);
rlm@0:     else
rlm@0:     {
rlm@0:         ALuint Channels = ChannelsFromFmt(ALBuf->FmtChannels);
rlm@0:         ALuint Bytes = BytesFromFmt(ALBuf->FmtType);
rlm@0:         if(SrcType == UserFmtIMA4)
rlm@0:         {
rlm@0:             /* offset -> byte offset, length -> block count */
rlm@0:             offset /= 36;
rlm@0:             offset *= 65;
rlm@0:             offset *= Bytes;
rlm@0:             length /= ALBuf->OriginalAlign;
rlm@0:         }
rlm@0:         else
rlm@0:         {
rlm@0:             ALuint OldBytes = BytesFromUserFmt(SrcType);
rlm@0: 
rlm@0:             offset /= OldBytes;
rlm@0:             offset *= Bytes;
rlm@0:             length /= OldBytes * Channels;
rlm@0:         }
rlm@0:         ConvertData(&((ALubyte*)ALBuf->data)[offset], ALBuf->FmtType,
rlm@0:                     data, SrcType, Channels, length);
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(Context);
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: AL_API void AL_APIENTRY alBufferSamplesSOFT(ALuint buffer,
rlm@0:   ALuint samplerate, ALenum internalformat, ALsizei frames,
rlm@0:   ALenum channels, ALenum type, const ALvoid *data)
rlm@0: {
rlm@0:     ALCcontext *Context;
rlm@0:     ALCdevice *device;
rlm@0:     ALbuffer *ALBuf;
rlm@0:     ALenum err;
rlm@0: 
rlm@0:     Context = GetLockedContext();
rlm@0:     if(!Context) return;
rlm@0: 
rlm@0:     device = Context->Device;
rlm@0:     if((ALBuf=LookupBuffer(device->BufferMap, buffer)) == NULL)
rlm@0:         alSetError(Context, AL_INVALID_NAME);
rlm@0:     else if(ALBuf->refcount != 0)
rlm@0:         alSetError(Context, AL_INVALID_VALUE);
rlm@0:     else if(frames < 0 || samplerate == 0)
rlm@0:         alSetError(Context, AL_INVALID_VALUE);
rlm@0:     else if(IsValidType(type) == AL_FALSE || IsValidChannels(channels) == AL_FALSE)
rlm@0:         alSetError(Context, AL_INVALID_ENUM);
rlm@0:     else
rlm@0:     {
rlm@0:         err = AL_NO_ERROR;
rlm@0:         if(type == UserFmtIMA4)
rlm@0:         {
rlm@0:             if((frames%65) == 0) frames /= 65;
rlm@0:             else err = AL_INVALID_VALUE;
rlm@0:         }
rlm@0:         if(err == AL_NO_ERROR)
rlm@0:             err = LoadData(ALBuf, samplerate, internalformat, frames,
rlm@0:                            channels, type, data, AL_FALSE);
rlm@0:         if(err != AL_NO_ERROR)
rlm@0:             alSetError(Context, err);
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(Context);
rlm@0: }
rlm@0: 
rlm@0: AL_API void AL_APIENTRY alBufferSubSamplesSOFT(ALuint buffer,
rlm@0:   ALsizei offset, ALsizei frames,
rlm@0:   ALenum channels, ALenum type, const ALvoid *data)
rlm@0: {
rlm@0:     ALCcontext *Context;
rlm@0:     ALCdevice  *device;
rlm@0:     ALbuffer   *ALBuf;
rlm@0: 
rlm@0:     Context = GetLockedContext();
rlm@0:     if(!Context) return;
rlm@0: 
rlm@0:     device = Context->Device;
rlm@0:     if((ALBuf=LookupBuffer(device->BufferMap, buffer)) == NULL)
rlm@0:         alSetError(Context, AL_INVALID_NAME);
rlm@0:     else if(frames < 0 || offset < 0 || (frames > 0 && data == NULL))
rlm@0:         alSetError(Context, AL_INVALID_VALUE);
rlm@0:     else if(channels != (ALenum)ALBuf->FmtChannels ||
rlm@0:             IsValidType(type) == AL_FALSE)
rlm@0:         alSetError(Context, AL_INVALID_ENUM);
rlm@0:     else
rlm@0:     {
rlm@0:         ALuint FrameSize = FrameSizeFromFmt(ALBuf->FmtChannels, ALBuf->FmtType);
rlm@0:         ALuint FrameCount = ALBuf->size / FrameSize;
rlm@0:         if((ALuint)offset > FrameCount || (ALuint)frames > FrameCount-offset)
rlm@0:             alSetError(Context, AL_INVALID_VALUE);
rlm@0:         else if(type == UserFmtIMA4 && (frames%65) != 0)
rlm@0:             alSetError(Context, AL_INVALID_VALUE);
rlm@0:         else
rlm@0:         {
rlm@0:             /* offset -> byte offset */
rlm@0:             offset *= FrameSize;
rlm@0:             /* frames -> IMA4 block count */
rlm@0:             if(type == UserFmtIMA4) frames /= 65;
rlm@0:             ConvertData(&((ALubyte*)ALBuf->data)[offset], ALBuf->FmtType,
rlm@0:                         data, type,
rlm@0:                         ChannelsFromFmt(ALBuf->FmtChannels), frames);
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(Context);
rlm@0: }
rlm@0: 
rlm@0: AL_API void AL_APIENTRY alGetBufferSamplesSOFT(ALuint buffer,
rlm@0:   ALsizei offset, ALsizei frames,
rlm@0:   ALenum channels, ALenum type, ALvoid *data)
rlm@0: {
rlm@0:     ALCcontext *Context;
rlm@0:     ALCdevice  *device;
rlm@0:     ALbuffer   *ALBuf;
rlm@0: 
rlm@0:     Context = GetLockedContext();
rlm@0:     if(!Context) return;
rlm@0: 
rlm@0:     device = Context->Device;
rlm@0:     if((ALBuf=LookupBuffer(device->BufferMap, buffer)) == NULL)
rlm@0:         alSetError(Context, AL_INVALID_NAME);
rlm@0:     else if(frames < 0 || offset < 0 || (frames > 0 && data == NULL))
rlm@0:         alSetError(Context, AL_INVALID_VALUE);
rlm@0:     else if(channels != (ALenum)ALBuf->FmtChannels ||
rlm@0:             IsValidType(type) == AL_FALSE)
rlm@0:         alSetError(Context, AL_INVALID_ENUM);
rlm@0:     else
rlm@0:     {
rlm@0:         ALuint FrameSize = FrameSizeFromFmt(ALBuf->FmtChannels, ALBuf->FmtType);
rlm@0:         ALuint FrameCount = ALBuf->size / FrameSize;
rlm@0:         if((ALuint)offset > FrameCount || (ALuint)frames > FrameCount-offset)
rlm@0:             alSetError(Context, AL_INVALID_VALUE);
rlm@0:         else if(type == UserFmtIMA4 && (frames%65) != 0)
rlm@0:             alSetError(Context, AL_INVALID_VALUE);
rlm@0:         else
rlm@0:         {
rlm@0:             /* offset -> byte offset */
rlm@0:             offset *= FrameSize;
rlm@0:             /* frames -> IMA4 block count */
rlm@0:             if(type == UserFmtIMA4) frames /= 65;
rlm@0:             ConvertData(data, type,
rlm@0:                         &((ALubyte*)ALBuf->data)[offset], ALBuf->FmtType,
rlm@0:                         ChannelsFromFmt(ALBuf->FmtChannels), frames);
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(Context);
rlm@0: }
rlm@0: 
rlm@0: AL_API ALboolean AL_APIENTRY alIsBufferFormatSupportedSOFT(ALenum format)
rlm@0: {
rlm@0:     enum FmtChannels DstChannels;
rlm@0:     enum FmtType DstType;
rlm@0:     ALCcontext *Context;
rlm@0:     ALboolean ret;
rlm@0: 
rlm@0:     Context = GetLockedContext();
rlm@0:     if(!Context) return AL_FALSE;
rlm@0: 
rlm@0:     ret = DecomposeFormat(format, &DstChannels, &DstType);
rlm@0: 
rlm@0:     UnlockContext(Context);
rlm@0: 
rlm@0:     return ret;
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: AL_API void AL_APIENTRY alBufferf(ALuint buffer, ALenum eParam, ALfloat flValue)
rlm@0: {
rlm@0:     ALCcontext    *pContext;
rlm@0:     ALCdevice     *device;
rlm@0: 
rlm@0:     (void)flValue;
rlm@0: 
rlm@0:     pContext = GetLockedContext();
rlm@0:     if(!pContext) return;
rlm@0: 
rlm@0:     device = pContext->Device;
rlm@0:     if(LookupBuffer(device->BufferMap, buffer) == NULL)
rlm@0:         alSetError(pContext, AL_INVALID_NAME);
rlm@0:     else
rlm@0:     {
rlm@0:         switch(eParam)
rlm@0:         {
rlm@0:         default:
rlm@0:             alSetError(pContext, AL_INVALID_ENUM);
rlm@0:             break;
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(pContext);
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: AL_API void AL_APIENTRY alBuffer3f(ALuint buffer, ALenum eParam, ALfloat flValue1, ALfloat flValue2, ALfloat flValue3)
rlm@0: {
rlm@0:     ALCcontext    *pContext;
rlm@0:     ALCdevice     *device;
rlm@0: 
rlm@0:     (void)flValue1;
rlm@0:     (void)flValue2;
rlm@0:     (void)flValue3;
rlm@0: 
rlm@0:     pContext = GetLockedContext();
rlm@0:     if(!pContext) return;
rlm@0: 
rlm@0:     device = pContext->Device;
rlm@0:     if(LookupBuffer(device->BufferMap, buffer) == NULL)
rlm@0:         alSetError(pContext, AL_INVALID_NAME);
rlm@0:     else
rlm@0:     {
rlm@0:         switch(eParam)
rlm@0:         {
rlm@0:         default:
rlm@0:             alSetError(pContext, AL_INVALID_ENUM);
rlm@0:             break;
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(pContext);
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: AL_API void AL_APIENTRY alBufferfv(ALuint buffer, ALenum eParam, const ALfloat* flValues)
rlm@0: {
rlm@0:     ALCcontext    *pContext;
rlm@0:     ALCdevice     *device;
rlm@0: 
rlm@0:     pContext = GetLockedContext();
rlm@0:     if(!pContext) return;
rlm@0: 
rlm@0:     device = pContext->Device;
rlm@0:     if(!flValues)
rlm@0:         alSetError(pContext, AL_INVALID_VALUE);
rlm@0:     else if(LookupBuffer(device->BufferMap, buffer) == NULL)
rlm@0:         alSetError(pContext, AL_INVALID_NAME);
rlm@0:     else
rlm@0:     {
rlm@0:         switch(eParam)
rlm@0:         {
rlm@0:         default:
rlm@0:             alSetError(pContext, AL_INVALID_ENUM);
rlm@0:             break;
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(pContext);
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: AL_API void AL_APIENTRY alBufferi(ALuint buffer, ALenum eParam, ALint lValue)
rlm@0: {
rlm@0:     ALCcontext    *pContext;
rlm@0:     ALCdevice     *device;
rlm@0: 
rlm@0:     (void)lValue;
rlm@0: 
rlm@0:     pContext = GetLockedContext();
rlm@0:     if(!pContext) return;
rlm@0: 
rlm@0:     device = pContext->Device;
rlm@0:     if(LookupBuffer(device->BufferMap, buffer) == NULL)
rlm@0:         alSetError(pContext, AL_INVALID_NAME);
rlm@0:     else
rlm@0:     {
rlm@0:         switch(eParam)
rlm@0:         {
rlm@0:         default:
rlm@0:             alSetError(pContext, AL_INVALID_ENUM);
rlm@0:             break;
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(pContext);
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: AL_API void AL_APIENTRY alBuffer3i( ALuint buffer, ALenum eParam, ALint lValue1, ALint lValue2, ALint lValue3)
rlm@0: {
rlm@0:     ALCcontext    *pContext;
rlm@0:     ALCdevice     *device;
rlm@0: 
rlm@0:     (void)lValue1;
rlm@0:     (void)lValue2;
rlm@0:     (void)lValue3;
rlm@0: 
rlm@0:     pContext = GetLockedContext();
rlm@0:     if(!pContext) return;
rlm@0: 
rlm@0:     device = pContext->Device;
rlm@0:     if(LookupBuffer(device->BufferMap, buffer) == NULL)
rlm@0:         alSetError(pContext, AL_INVALID_NAME);
rlm@0:     else
rlm@0:     {
rlm@0:         switch(eParam)
rlm@0:         {
rlm@0:         default:
rlm@0:             alSetError(pContext, AL_INVALID_ENUM);
rlm@0:             break;
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(pContext);
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: AL_API void AL_APIENTRY alBufferiv(ALuint buffer, ALenum eParam, const ALint* plValues)
rlm@0: {
rlm@0:     ALCcontext    *pContext;
rlm@0:     ALCdevice     *device;
rlm@0:     ALbuffer      *ALBuf;
rlm@0: 
rlm@0:     pContext = GetLockedContext();
rlm@0:     if(!pContext) return;
rlm@0: 
rlm@0:     device = pContext->Device;
rlm@0:     if(!plValues)
rlm@0:         alSetError(pContext, AL_INVALID_VALUE);
rlm@0:     else if((ALBuf=LookupBuffer(device->BufferMap, buffer)) == NULL)
rlm@0:         alSetError(pContext, AL_INVALID_NAME);
rlm@0:     else
rlm@0:     {
rlm@0:         switch(eParam)
rlm@0:         {
rlm@0:         case AL_LOOP_POINTS_SOFT:
rlm@0:             if(ALBuf->refcount > 0)
rlm@0:                 alSetError(pContext, AL_INVALID_OPERATION);
rlm@0:             else if(plValues[0] < 0 || plValues[1] < 0 ||
rlm@0:                     plValues[0] >= plValues[1] || ALBuf->size == 0)
rlm@0:                 alSetError(pContext, AL_INVALID_VALUE);
rlm@0:             else
rlm@0:             {
rlm@0:                 ALint maxlen = ALBuf->size /
rlm@0:                                FrameSizeFromFmt(ALBuf->FmtChannels, ALBuf->FmtType);
rlm@0:                 if(plValues[0] > maxlen || plValues[1] > maxlen)
rlm@0:                     alSetError(pContext, AL_INVALID_VALUE);
rlm@0:                 else
rlm@0:                 {
rlm@0:                     ALBuf->LoopStart = plValues[0];
rlm@0:                     ALBuf->LoopEnd = plValues[1];
rlm@0:                 }
rlm@0:             }
rlm@0:             break;
rlm@0: 
rlm@0:         default:
rlm@0:             alSetError(pContext, AL_INVALID_ENUM);
rlm@0:             break;
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(pContext);
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: AL_API ALvoid AL_APIENTRY alGetBufferf(ALuint buffer, ALenum eParam, ALfloat *pflValue)
rlm@0: {
rlm@0:     ALCcontext    *pContext;
rlm@0:     ALCdevice     *device;
rlm@0: 
rlm@0:     pContext = GetLockedContext();
rlm@0:     if(!pContext) return;
rlm@0: 
rlm@0:     device = pContext->Device;
rlm@0:     if(!pflValue)
rlm@0:         alSetError(pContext, AL_INVALID_VALUE);
rlm@0:     else if(LookupBuffer(device->BufferMap, buffer) == NULL)
rlm@0:         alSetError(pContext, AL_INVALID_NAME);
rlm@0:     else
rlm@0:     {
rlm@0:         switch(eParam)
rlm@0:         {
rlm@0:         default:
rlm@0:             alSetError(pContext, AL_INVALID_ENUM);
rlm@0:             break;
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(pContext);
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: AL_API void AL_APIENTRY alGetBuffer3f(ALuint buffer, ALenum eParam, ALfloat* pflValue1, ALfloat* pflValue2, ALfloat* pflValue3)
rlm@0: {
rlm@0:     ALCcontext    *pContext;
rlm@0:     ALCdevice     *device;
rlm@0: 
rlm@0:     pContext = GetLockedContext();
rlm@0:     if(!pContext) return;
rlm@0: 
rlm@0:     device = pContext->Device;
rlm@0:     if(!pflValue1 || !pflValue2 || !pflValue3)
rlm@0:         alSetError(pContext, AL_INVALID_VALUE);
rlm@0:     else if(LookupBuffer(device->BufferMap, buffer) == NULL)
rlm@0:         alSetError(pContext, AL_INVALID_NAME);
rlm@0:     else
rlm@0:     {
rlm@0:         switch(eParam)
rlm@0:         {
rlm@0:         default:
rlm@0:             alSetError(pContext, AL_INVALID_ENUM);
rlm@0:             break;
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(pContext);
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: AL_API void AL_APIENTRY alGetBufferfv(ALuint buffer, ALenum eParam, ALfloat* pflValues)
rlm@0: {
rlm@0:     ALCcontext    *pContext;
rlm@0:     ALCdevice     *device;
rlm@0: 
rlm@0:     pContext = GetLockedContext();
rlm@0:     if(!pContext) return;
rlm@0: 
rlm@0:     device = pContext->Device;
rlm@0:     if(!pflValues)
rlm@0:         alSetError(pContext, AL_INVALID_VALUE);
rlm@0:     else if(LookupBuffer(device->BufferMap, buffer) == NULL)
rlm@0:         alSetError(pContext, AL_INVALID_NAME);
rlm@0:     else
rlm@0:     {
rlm@0:         switch(eParam)
rlm@0:         {
rlm@0:         default:
rlm@0:             alSetError(pContext, AL_INVALID_ENUM);
rlm@0:             break;
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(pContext);
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: AL_API ALvoid AL_APIENTRY alGetBufferi(ALuint buffer, ALenum eParam, ALint *plValue)
rlm@0: {
rlm@0:     ALCcontext    *pContext;
rlm@0:     ALbuffer      *pBuffer;
rlm@0:     ALCdevice     *device;
rlm@0: 
rlm@0:     pContext = GetLockedContext();
rlm@0:     if(!pContext) return;
rlm@0: 
rlm@0:     device = pContext->Device;
rlm@0:     if(!plValue)
rlm@0:         alSetError(pContext, AL_INVALID_VALUE);
rlm@0:     else if((pBuffer=LookupBuffer(device->BufferMap, buffer)) == NULL)
rlm@0:         alSetError(pContext, AL_INVALID_NAME);
rlm@0:     else
rlm@0:     {
rlm@0:         switch(eParam)
rlm@0:         {
rlm@0:         case AL_FREQUENCY:
rlm@0:             *plValue = pBuffer->Frequency;
rlm@0:             break;
rlm@0: 
rlm@0:         case AL_BITS:
rlm@0:             *plValue = BytesFromFmt(pBuffer->FmtType) * 8;
rlm@0:             break;
rlm@0: 
rlm@0:         case AL_CHANNELS:
rlm@0:             *plValue = ChannelsFromFmt(pBuffer->FmtChannels);
rlm@0:             break;
rlm@0: 
rlm@0:         case AL_SIZE:
rlm@0:             *plValue = pBuffer->size;
rlm@0:             break;
rlm@0: 
rlm@0:         default:
rlm@0:             alSetError(pContext, AL_INVALID_ENUM);
rlm@0:             break;
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(pContext);
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: AL_API void AL_APIENTRY alGetBuffer3i(ALuint buffer, ALenum eParam, ALint* plValue1, ALint* plValue2, ALint* plValue3)
rlm@0: {
rlm@0:     ALCcontext    *pContext;
rlm@0:     ALCdevice     *device;
rlm@0: 
rlm@0:     pContext = GetLockedContext();
rlm@0:     if(!pContext) return;
rlm@0: 
rlm@0:     device = pContext->Device;
rlm@0:     if(!plValue1 || !plValue2 || !plValue3)
rlm@0:         alSetError(pContext, AL_INVALID_VALUE);
rlm@0:     else if(LookupBuffer(device->BufferMap, buffer) == NULL)
rlm@0:         alSetError(pContext, AL_INVALID_NAME);
rlm@0:     else
rlm@0:     {
rlm@0:         switch(eParam)
rlm@0:         {
rlm@0:         default:
rlm@0:             alSetError(pContext, AL_INVALID_ENUM);
rlm@0:             break;
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(pContext);
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: AL_API void AL_APIENTRY alGetBufferiv(ALuint buffer, ALenum eParam, ALint* plValues)
rlm@0: {
rlm@0:     ALCcontext    *pContext;
rlm@0:     ALCdevice     *device;
rlm@0:     ALbuffer      *ALBuf;
rlm@0: 
rlm@0:     switch(eParam)
rlm@0:     {
rlm@0:     case AL_FREQUENCY:
rlm@0:     case AL_BITS:
rlm@0:     case AL_CHANNELS:
rlm@0:     case AL_SIZE:
rlm@0:         alGetBufferi(buffer, eParam, plValues);
rlm@0:         return;
rlm@0:     }
rlm@0: 
rlm@0:     pContext = GetLockedContext();
rlm@0:     if(!pContext) return;
rlm@0: 
rlm@0:     device = pContext->Device;
rlm@0:     if(!plValues)
rlm@0:         alSetError(pContext, AL_INVALID_VALUE);
rlm@0:     else if((ALBuf=LookupBuffer(device->BufferMap, buffer)) == NULL)
rlm@0:         alSetError(pContext, AL_INVALID_NAME);
rlm@0:     else
rlm@0:     {
rlm@0:         switch(eParam)
rlm@0:         {
rlm@0:         case AL_LOOP_POINTS_SOFT:
rlm@0:             plValues[0] = ALBuf->LoopStart;
rlm@0:             plValues[1] = ALBuf->LoopEnd;
rlm@0:             break;
rlm@0: 
rlm@0:         default:
rlm@0:             alSetError(pContext, AL_INVALID_ENUM);
rlm@0:             break;
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     UnlockContext(pContext);
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: typedef ALubyte ALmulaw;
rlm@0: typedef ALubyte ALima4;
rlm@0: typedef struct {
rlm@0:     ALbyte b[3];
rlm@0: } ALbyte3;
rlm@0: typedef struct {
rlm@0:     ALubyte b[3];
rlm@0: } ALubyte3;
rlm@0: 
rlm@0: static __inline ALshort DecodeMuLaw(ALmulaw val)
rlm@0: { return muLawDecompressionTable[val]; }
rlm@0: 
rlm@0: static ALmulaw EncodeMuLaw(ALshort val)
rlm@0: {
rlm@0:     ALint mant, exp, sign;
rlm@0: 
rlm@0:     sign = (val>>8) & 0x80;
rlm@0:     if(sign)
rlm@0:     {
rlm@0:         /* -32768 doesn't properly negate on a short; it results in itself.
rlm@0:          * So clamp to -32767 */
rlm@0:         val = maxi(val, -32767);
rlm@0:         val = -val;
rlm@0:     }
rlm@0: 
rlm@0:     val = mini(val, muLawClip);
rlm@0:     val += muLawBias;
rlm@0: 
rlm@0:     exp = muLawCompressTable[(val>>7) & 0xff];
rlm@0:     mant = (val >> (exp+3)) & 0x0f;
rlm@0: 
rlm@0:     return ~(sign | (exp<<4) | mant);
rlm@0: }
rlm@0: 
rlm@0: static void DecodeIMA4Block(ALshort *dst, const ALima4 *src, ALint numchans)
rlm@0: {
rlm@0:     ALint sample[MAXCHANNELS], index[MAXCHANNELS];
rlm@0:     ALuint code[MAXCHANNELS];
rlm@0:     ALsizei j,k,c;
rlm@0: 
rlm@0:     for(c = 0;c < numchans;c++)
rlm@0:     {
rlm@0:         sample[c]  = *(src++);
rlm@0:         sample[c] |= *(src++) << 8;
rlm@0:         sample[c]  = (sample[c]^0x8000) - 32768;
rlm@0:         index[c]  = *(src++);
rlm@0:         index[c] |= *(src++) << 8;
rlm@0:         index[c]  = (index[c]^0x8000) - 32768;
rlm@0: 
rlm@0:         index[c] = clampi(index[c], 0, 88);
rlm@0: 
rlm@0:         dst[c] = sample[c];
rlm@0:     }
rlm@0: 
rlm@0:     j = 1;
rlm@0:     while(j < 65)
rlm@0:     {
rlm@0:         for(c = 0;c < numchans;c++)
rlm@0:         {
rlm@0:             code[c]  = *(src++);
rlm@0:             code[c] |= *(src++) << 8;
rlm@0:             code[c] |= *(src++) << 16;
rlm@0:             code[c] |= *(src++) << 24;
rlm@0:         }
rlm@0: 
rlm@0:         for(k = 0;k < 8;k++,j++)
rlm@0:         {
rlm@0:             for(c = 0;c < numchans;c++)
rlm@0:             {
rlm@0:                 int nibble = code[c]&0xf;
rlm@0:                 code[c] >>= 4;
rlm@0: 
rlm@0:                 sample[c] += IMA4Codeword[nibble] * IMAStep_size[index[c]] / 8;
rlm@0:                 sample[c] = clampi(sample[c], -32768, 32767);
rlm@0: 
rlm@0:                 index[c] += IMA4Index_adjust[nibble];
rlm@0:                 index[c] = clampi(index[c], 0, 88);
rlm@0: 
rlm@0:                 dst[j*numchans + c] = sample[c];
rlm@0:             }
rlm@0:         }
rlm@0:     }
rlm@0: }
rlm@0: 
rlm@0: static void EncodeIMA4Block(ALima4 *dst, const ALshort *src, ALint *sample, ALint *index, ALint numchans)
rlm@0: {
rlm@0:     ALsizei j,k,c;
rlm@0: 
rlm@0:     for(c = 0;c < numchans;c++)
rlm@0:     {
rlm@0:         int diff = src[c] - sample[c];
rlm@0:         int step = IMAStep_size[index[c]];
rlm@0:         int nibble;
rlm@0: 
rlm@0:         nibble = 0;
rlm@0:         if(diff < 0)
rlm@0:         {
rlm@0:             nibble = 0x8;
rlm@0:             diff = -diff;
rlm@0:         }
rlm@0: 
rlm@0:         diff = mini(step*2, diff);
rlm@0:         nibble |= (diff*8/step - 1) / 2;
rlm@0: 
rlm@0:         sample[c] += IMA4Codeword[nibble] * step / 8;
rlm@0:         sample[c] = clampi(sample[c], -32768, 32767);
rlm@0: 
rlm@0:         index[c] += IMA4Index_adjust[nibble];
rlm@0:         index[c] = clampi(index[c], 0, 88);
rlm@0: 
rlm@0:         *(dst++) = sample[c] & 0xff;
rlm@0:         *(dst++) = (sample[c]>>8) & 0xff;
rlm@0:         *(dst++) = index[c] & 0xff;
rlm@0:         *(dst++) = (index[c]>>8) & 0xff;
rlm@0:     }
rlm@0: 
rlm@0:     j = 1;
rlm@0:     while(j < 65)
rlm@0:     {
rlm@0:         for(c = 0;c < numchans;c++)
rlm@0:         {
rlm@0:             for(k = 0;k < 8;k++)
rlm@0:             {
rlm@0:                 int diff = src[(j+k)*numchans + c] - sample[c];
rlm@0:                 int step = IMAStep_size[index[c]];
rlm@0:                 int nibble;
rlm@0: 
rlm@0:                 nibble = 0;
rlm@0:                 if(diff < 0)
rlm@0:                 {
rlm@0:                     nibble = 0x8;
rlm@0:                     diff = -diff;
rlm@0:                 }
rlm@0: 
rlm@0:                 diff = mini(step*2, diff);
rlm@0:                 nibble |= (diff*8/step - 1) / 2;
rlm@0: 
rlm@0:                 sample[c] += IMA4Codeword[nibble] * step / 8;
rlm@0:                 sample[c] = clampi(sample[c], -32768, 32767);
rlm@0: 
rlm@0:                 index[c] += IMA4Index_adjust[nibble];
rlm@0:                 index[c] = clampi(index[c], 0, 88);
rlm@0: 
rlm@0:                 if(!(k&1)) *dst = nibble;
rlm@0:                 else *(dst++) |= nibble<<4;
rlm@0:             }
rlm@0:         }
rlm@0:         j += 8;
rlm@0:     }
rlm@0: }
rlm@0: 
rlm@0: static const union {
rlm@0:     ALuint u;
rlm@0:     ALubyte b[sizeof(ALuint)];
rlm@0: } EndianTest = { 1 };
rlm@0: #define IS_LITTLE_ENDIAN (EndianTest.b[0] == 1)
rlm@0: 
rlm@0: static __inline ALint DecodeByte3(ALbyte3 val)
rlm@0: {
rlm@0:     if(IS_LITTLE_ENDIAN)
rlm@0:         return (val.b[2]<<16) | (((ALubyte)val.b[1])<<8) | ((ALubyte)val.b[0]);
rlm@0:     return (val.b[0]<<16) | (((ALubyte)val.b[1])<<8) | ((ALubyte)val.b[2]);
rlm@0: }
rlm@0: 
rlm@0: static __inline ALbyte3 EncodeByte3(ALint val)
rlm@0: {
rlm@0:     if(IS_LITTLE_ENDIAN)
rlm@0:     {
rlm@0:         ALbyte3 ret = {{ val, val>>8, val>>16 }};
rlm@0:         return ret;
rlm@0:     }
rlm@0:     else
rlm@0:     {
rlm@0:         ALbyte3 ret = {{ val>>16, val>>8, val }};
rlm@0:         return ret;
rlm@0:     }
rlm@0: }
rlm@0: 
rlm@0: static __inline ALint DecodeUByte3(ALubyte3 val)
rlm@0: {
rlm@0:     if(IS_LITTLE_ENDIAN)
rlm@0:         return (val.b[2]<<16) | (val.b[1]<<8) | (val.b[0]);
rlm@0:     return (val.b[0]<<16) | (val.b[1]<<8) | val.b[2];
rlm@0: }
rlm@0: 
rlm@0: static __inline ALubyte3 EncodeUByte3(ALint val)
rlm@0: {
rlm@0:     if(IS_LITTLE_ENDIAN)
rlm@0:     {
rlm@0:         ALubyte3 ret = {{ val, val>>8, val>>16 }};
rlm@0:         return ret;
rlm@0:     }
rlm@0:     else
rlm@0:     {
rlm@0:         ALubyte3 ret = {{ val>>16, val>>8, val }};
rlm@0:         return ret;
rlm@0:     }
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: static __inline ALbyte Conv_ALbyte_ALbyte(ALbyte val)
rlm@0: { return val; }
rlm@0: static __inline ALbyte Conv_ALbyte_ALubyte(ALubyte val)
rlm@0: { return val-128; }
rlm@0: static __inline ALbyte Conv_ALbyte_ALshort(ALshort val)
rlm@0: { return val>>8; }
rlm@0: static __inline ALbyte Conv_ALbyte_ALushort(ALushort val)
rlm@0: { return (val>>8)-128; }
rlm@0: static __inline ALbyte Conv_ALbyte_ALint(ALint val)
rlm@0: { return val>>24; }
rlm@0: static __inline ALbyte Conv_ALbyte_ALuint(ALuint val)
rlm@0: { return (val>>24)-128; }
rlm@0: static __inline ALbyte Conv_ALbyte_ALfloat(ALfloat val)
rlm@0: {
rlm@0:     if(val > 1.0f) return 127;
rlm@0:     if(val < -1.0f) return -128;
rlm@0:     return (ALint)(val * 127.0f);
rlm@0: }
rlm@0: static __inline ALbyte Conv_ALbyte_ALdouble(ALdouble val)
rlm@0: {
rlm@0:     if(val > 1.0) return 127;
rlm@0:     if(val < -1.0) return -128;
rlm@0:     return (ALint)(val * 127.0);
rlm@0: }
rlm@0: static __inline ALbyte Conv_ALbyte_ALmulaw(ALmulaw val)
rlm@0: { return Conv_ALbyte_ALshort(DecodeMuLaw(val)); }
rlm@0: static __inline ALbyte Conv_ALbyte_ALbyte3(ALbyte3 val)
rlm@0: { return DecodeByte3(val)>>16; }
rlm@0: static __inline ALbyte Conv_ALbyte_ALubyte3(ALubyte3 val)
rlm@0: { return (DecodeUByte3(val)>>16)-128; }
rlm@0: 
rlm@0: static __inline ALubyte Conv_ALubyte_ALbyte(ALbyte val)
rlm@0: { return val+128; }
rlm@0: static __inline ALubyte Conv_ALubyte_ALubyte(ALubyte val)
rlm@0: { return val; }
rlm@0: static __inline ALubyte Conv_ALubyte_ALshort(ALshort val)
rlm@0: { return (val>>8)+128; }
rlm@0: static __inline ALubyte Conv_ALubyte_ALushort(ALushort val)
rlm@0: { return val>>8; }
rlm@0: static __inline ALubyte Conv_ALubyte_ALint(ALint val)
rlm@0: { return (val>>24)+128; }
rlm@0: static __inline ALubyte Conv_ALubyte_ALuint(ALuint val)
rlm@0: { return val>>24; }
rlm@0: static __inline ALubyte Conv_ALubyte_ALfloat(ALfloat val)
rlm@0: {
rlm@0:     if(val > 1.0f) return 255;
rlm@0:     if(val < -1.0f) return 0;
rlm@0:     return (ALint)(val * 127.0f) + 128;
rlm@0: }
rlm@0: static __inline ALubyte Conv_ALubyte_ALdouble(ALdouble val)
rlm@0: {
rlm@0:     if(val > 1.0) return 255;
rlm@0:     if(val < -1.0) return 0;
rlm@0:     return (ALint)(val * 127.0) + 128;
rlm@0: }
rlm@0: static __inline ALubyte Conv_ALubyte_ALmulaw(ALmulaw val)
rlm@0: { return Conv_ALubyte_ALshort(DecodeMuLaw(val)); }
rlm@0: static __inline ALubyte Conv_ALubyte_ALbyte3(ALbyte3 val)
rlm@0: { return (DecodeByte3(val)>>16)+128; }
rlm@0: static __inline ALubyte Conv_ALubyte_ALubyte3(ALubyte3 val)
rlm@0: { return DecodeUByte3(val)>>16; }
rlm@0: 
rlm@0: static __inline ALshort Conv_ALshort_ALbyte(ALbyte val)
rlm@0: { return val<<8; }
rlm@0: static __inline ALshort Conv_ALshort_ALubyte(ALubyte val)
rlm@0: { return (val-128)<<8; }
rlm@0: static __inline ALshort Conv_ALshort_ALshort(ALshort val)
rlm@0: { return val; }
rlm@0: static __inline ALshort Conv_ALshort_ALushort(ALushort val)
rlm@0: { return val-32768; }
rlm@0: static __inline ALshort Conv_ALshort_ALint(ALint val)
rlm@0: { return val>>16; }
rlm@0: static __inline ALshort Conv_ALshort_ALuint(ALuint val)
rlm@0: { return (val>>16)-32768; }
rlm@0: static __inline ALshort Conv_ALshort_ALfloat(ALfloat val)
rlm@0: {
rlm@0:     if(val > 1.0f) return 32767;
rlm@0:     if(val < -1.0f) return -32768;
rlm@0:     return (ALint)(val * 32767.0f);
rlm@0: }
rlm@0: static __inline ALshort Conv_ALshort_ALdouble(ALdouble val)
rlm@0: {
rlm@0:     if(val > 1.0) return 32767;
rlm@0:     if(val < -1.0) return -32768;
rlm@0:     return (ALint)(val * 32767.0);
rlm@0: }
rlm@0: static __inline ALshort Conv_ALshort_ALmulaw(ALmulaw val)
rlm@0: { return Conv_ALshort_ALshort(DecodeMuLaw(val)); }
rlm@0: static __inline ALshort Conv_ALshort_ALbyte3(ALbyte3 val)
rlm@0: { return DecodeByte3(val)>>8; }
rlm@0: static __inline ALshort Conv_ALshort_ALubyte3(ALubyte3 val)
rlm@0: { return (DecodeUByte3(val)>>8)-32768; }
rlm@0: 
rlm@0: static __inline ALushort Conv_ALushort_ALbyte(ALbyte val)
rlm@0: { return (val+128)<<8; }
rlm@0: static __inline ALushort Conv_ALushort_ALubyte(ALubyte val)
rlm@0: { return val<<8; }
rlm@0: static __inline ALushort Conv_ALushort_ALshort(ALshort val)
rlm@0: { return val+32768; }
rlm@0: static __inline ALushort Conv_ALushort_ALushort(ALushort val)
rlm@0: { return val; }
rlm@0: static __inline ALushort Conv_ALushort_ALint(ALint val)
rlm@0: { return (val>>16)+32768; }
rlm@0: static __inline ALushort Conv_ALushort_ALuint(ALuint val)
rlm@0: { return val>>16; }
rlm@0: static __inline ALushort Conv_ALushort_ALfloat(ALfloat val)
rlm@0: {
rlm@0:     if(val > 1.0f) return 65535;
rlm@0:     if(val < -1.0f) return 0;
rlm@0:     return (ALint)(val * 32767.0f) + 32768;
rlm@0: }
rlm@0: static __inline ALushort Conv_ALushort_ALdouble(ALdouble val)
rlm@0: {
rlm@0:     if(val > 1.0) return 65535;
rlm@0:     if(val < -1.0) return 0;
rlm@0:     return (ALint)(val * 32767.0) + 32768;
rlm@0: }
rlm@0: static __inline ALushort Conv_ALushort_ALmulaw(ALmulaw val)
rlm@0: { return Conv_ALushort_ALshort(DecodeMuLaw(val)); }
rlm@0: static __inline ALushort Conv_ALushort_ALbyte3(ALbyte3 val)
rlm@0: { return (DecodeByte3(val)>>8)+32768; }
rlm@0: static __inline ALushort Conv_ALushort_ALubyte3(ALubyte3 val)
rlm@0: { return DecodeUByte3(val)>>8; }
rlm@0: 
rlm@0: static __inline ALint Conv_ALint_ALbyte(ALbyte val)
rlm@0: { return val<<24; }
rlm@0: static __inline ALint Conv_ALint_ALubyte(ALubyte val)
rlm@0: { return (val-128)<<24; }
rlm@0: static __inline ALint Conv_ALint_ALshort(ALshort val)
rlm@0: { return val<<16; }
rlm@0: static __inline ALint Conv_ALint_ALushort(ALushort val)
rlm@0: { return (val-32768)<<16; }
rlm@0: static __inline ALint Conv_ALint_ALint(ALint val)
rlm@0: { return val; }
rlm@0: static __inline ALint Conv_ALint_ALuint(ALuint val)
rlm@0: { return val-2147483648u; }
rlm@0: static __inline ALint Conv_ALint_ALfloat(ALfloat val)
rlm@0: {
rlm@0:     if(val > 1.0f) return 2147483647;
rlm@0:     if(val < -1.0f) return -2147483647-1;
rlm@0:     return (ALint)(val * 2147483647.0);
rlm@0: }
rlm@0: static __inline ALint Conv_ALint_ALdouble(ALdouble val)
rlm@0: {
rlm@0:     if(val > 1.0) return 2147483647;
rlm@0:     if(val < -1.0) return -2147483647-1;
rlm@0:     return (ALint)(val * 2147483647.0);
rlm@0: }
rlm@0: static __inline ALint Conv_ALint_ALmulaw(ALmulaw val)
rlm@0: { return Conv_ALint_ALshort(DecodeMuLaw(val)); }
rlm@0: static __inline ALint Conv_ALint_ALbyte3(ALbyte3 val)
rlm@0: { return DecodeByte3(val)<<8; }
rlm@0: static __inline ALint Conv_ALint_ALubyte3(ALubyte3 val)
rlm@0: { return (DecodeUByte3(val)-8388608)<<8; }
rlm@0: 
rlm@0: static __inline ALuint Conv_ALuint_ALbyte(ALbyte val)
rlm@0: { return (val+128)<<24; }
rlm@0: static __inline ALuint Conv_ALuint_ALubyte(ALubyte val)
rlm@0: { return val<<24; }
rlm@0: static __inline ALuint Conv_ALuint_ALshort(ALshort val)
rlm@0: { return (val+32768)<<16; }
rlm@0: static __inline ALuint Conv_ALuint_ALushort(ALushort val)
rlm@0: { return val<<16; }
rlm@0: static __inline ALuint Conv_ALuint_ALint(ALint val)
rlm@0: { return val+2147483648u; }
rlm@0: static __inline ALuint Conv_ALuint_ALuint(ALuint val)
rlm@0: { return val; }
rlm@0: static __inline ALuint Conv_ALuint_ALfloat(ALfloat val)
rlm@0: {
rlm@0:     if(val > 1.0f) return 4294967295u;
rlm@0:     if(val < -1.0f) return 0;
rlm@0:     return (ALint)(val * 2147483647.0) + 2147483648u;
rlm@0: }
rlm@0: static __inline ALuint Conv_ALuint_ALdouble(ALdouble val)
rlm@0: {
rlm@0:     if(val > 1.0) return 4294967295u;
rlm@0:     if(val < -1.0) return 0;
rlm@0:     return (ALint)(val * 2147483647.0) + 2147483648u;
rlm@0: }
rlm@0: static __inline ALuint Conv_ALuint_ALmulaw(ALmulaw val)
rlm@0: { return Conv_ALuint_ALshort(DecodeMuLaw(val)); }
rlm@0: static __inline ALuint Conv_ALuint_ALbyte3(ALbyte3 val)
rlm@0: { return (DecodeByte3(val)+8388608)<<8; }
rlm@0: static __inline ALuint Conv_ALuint_ALubyte3(ALubyte3 val)
rlm@0: { return DecodeUByte3(val)<<8; }
rlm@0: 
rlm@0: static __inline ALfloat Conv_ALfloat_ALbyte(ALbyte val)
rlm@0: { return val * (1.0f/127.0f); }
rlm@0: static __inline ALfloat Conv_ALfloat_ALubyte(ALubyte val)
rlm@0: { return (val-128) * (1.0f/127.0f); }
rlm@0: static __inline ALfloat Conv_ALfloat_ALshort(ALshort val)
rlm@0: { return val * (1.0f/32767.0f); }
rlm@0: static __inline ALfloat Conv_ALfloat_ALushort(ALushort val)
rlm@0: { return (val-32768) * (1.0f/32767.0f); }
rlm@0: static __inline ALfloat Conv_ALfloat_ALint(ALint val)
rlm@0: { return val * (1.0/2147483647.0); }
rlm@0: static __inline ALfloat Conv_ALfloat_ALuint(ALuint val)
rlm@0: { return (ALint)(val-2147483648u) * (1.0/2147483647.0); }
rlm@0: static __inline ALfloat Conv_ALfloat_ALfloat(ALfloat val)
rlm@0: { return (val==val) ? val : 0.0f; }
rlm@0: static __inline ALfloat Conv_ALfloat_ALdouble(ALdouble val)
rlm@0: { return (val==val) ? val : 0.0; }
rlm@0: static __inline ALfloat Conv_ALfloat_ALmulaw(ALmulaw val)
rlm@0: { return Conv_ALfloat_ALshort(DecodeMuLaw(val)); }
rlm@0: static __inline ALfloat Conv_ALfloat_ALbyte3(ALbyte3 val)
rlm@0: { return DecodeByte3(val) * (1.0/8388607.0); }
rlm@0: static __inline ALfloat Conv_ALfloat_ALubyte3(ALubyte3 val)
rlm@0: { return (DecodeUByte3(val)-8388608) * (1.0/8388607.0); }
rlm@0: 
rlm@0: static __inline ALdouble Conv_ALdouble_ALbyte(ALbyte val)
rlm@0: { return val * (1.0/127.0); }
rlm@0: static __inline ALdouble Conv_ALdouble_ALubyte(ALubyte val)
rlm@0: { return (val-128) * (1.0/127.0); }
rlm@0: static __inline ALdouble Conv_ALdouble_ALshort(ALshort val)
rlm@0: { return val * (1.0/32767.0); }
rlm@0: static __inline ALdouble Conv_ALdouble_ALushort(ALushort val)
rlm@0: { return (val-32768) * (1.0/32767.0); }
rlm@0: static __inline ALdouble Conv_ALdouble_ALint(ALint val)
rlm@0: { return val * (1.0/2147483647.0); }
rlm@0: static __inline ALdouble Conv_ALdouble_ALuint(ALuint val)
rlm@0: { return (ALint)(val-2147483648u) * (1.0/2147483647.0); }
rlm@0: static __inline ALdouble Conv_ALdouble_ALfloat(ALfloat val)
rlm@0: { return (val==val) ? val : 0.0f; }
rlm@0: static __inline ALdouble Conv_ALdouble_ALdouble(ALdouble val)
rlm@0: { return (val==val) ? val : 0.0; }
rlm@0: static __inline ALdouble Conv_ALdouble_ALmulaw(ALmulaw val)
rlm@0: { return Conv_ALdouble_ALshort(DecodeMuLaw(val)); }
rlm@0: static __inline ALdouble Conv_ALdouble_ALbyte3(ALbyte3 val)
rlm@0: { return DecodeByte3(val) * (1.0/8388607.0); }
rlm@0: static __inline ALdouble Conv_ALdouble_ALubyte3(ALubyte3 val)
rlm@0: { return (DecodeUByte3(val)-8388608) * (1.0/8388607.0); }
rlm@0: 
rlm@0: #define DECL_TEMPLATE(T)                                                      \
rlm@0: static __inline ALmulaw Conv_ALmulaw_##T(T val)                               \
rlm@0: { return EncodeMuLaw(Conv_ALshort_##T(val)); }
rlm@0: 
rlm@0: DECL_TEMPLATE(ALbyte)
rlm@0: DECL_TEMPLATE(ALubyte)
rlm@0: DECL_TEMPLATE(ALshort)
rlm@0: DECL_TEMPLATE(ALushort)
rlm@0: DECL_TEMPLATE(ALint)
rlm@0: DECL_TEMPLATE(ALuint)
rlm@0: DECL_TEMPLATE(ALfloat)
rlm@0: DECL_TEMPLATE(ALdouble)
rlm@0: static __inline ALmulaw Conv_ALmulaw_ALmulaw(ALmulaw val)
rlm@0: { return val; }
rlm@0: DECL_TEMPLATE(ALbyte3)
rlm@0: DECL_TEMPLATE(ALubyte3)
rlm@0: 
rlm@0: #undef DECL_TEMPLATE
rlm@0: 
rlm@0: #define DECL_TEMPLATE(T)                                                      \
rlm@0: static __inline ALbyte3 Conv_ALbyte3_##T(T val)                               \
rlm@0: { return EncodeByte3(Conv_ALint_##T(val)>>8); }
rlm@0: 
rlm@0: DECL_TEMPLATE(ALbyte)
rlm@0: DECL_TEMPLATE(ALubyte)
rlm@0: DECL_TEMPLATE(ALshort)
rlm@0: DECL_TEMPLATE(ALushort)
rlm@0: DECL_TEMPLATE(ALint)
rlm@0: DECL_TEMPLATE(ALuint)
rlm@0: DECL_TEMPLATE(ALfloat)
rlm@0: DECL_TEMPLATE(ALdouble)
rlm@0: DECL_TEMPLATE(ALmulaw)
rlm@0: static __inline ALbyte3 Conv_ALbyte3_ALbyte3(ALbyte3 val)
rlm@0: { return val; }
rlm@0: DECL_TEMPLATE(ALubyte3)
rlm@0: 
rlm@0: #undef DECL_TEMPLATE
rlm@0: 
rlm@0: #define DECL_TEMPLATE(T)                                                      \
rlm@0: static __inline ALubyte3 Conv_ALubyte3_##T(T val)                             \
rlm@0: { return EncodeUByte3(Conv_ALuint_##T(val)>>8); }
rlm@0: 
rlm@0: DECL_TEMPLATE(ALbyte)
rlm@0: DECL_TEMPLATE(ALubyte)
rlm@0: DECL_TEMPLATE(ALshort)
rlm@0: DECL_TEMPLATE(ALushort)
rlm@0: DECL_TEMPLATE(ALint)
rlm@0: DECL_TEMPLATE(ALuint)
rlm@0: DECL_TEMPLATE(ALfloat)
rlm@0: DECL_TEMPLATE(ALdouble)
rlm@0: DECL_TEMPLATE(ALmulaw)
rlm@0: DECL_TEMPLATE(ALbyte3)
rlm@0: static __inline ALubyte3 Conv_ALubyte3_ALubyte3(ALubyte3 val)
rlm@0: { return val; }
rlm@0: 
rlm@0: #undef DECL_TEMPLATE
rlm@0: 
rlm@0: 
rlm@0: #define DECL_TEMPLATE(T1, T2)                                                 \
rlm@0: static void Convert_##T1##_##T2(T1 *dst, const T2 *src, ALuint numchans,      \
rlm@0:                                 ALuint len)                                   \
rlm@0: {                                                                             \
rlm@0:     ALuint i, j;                                                              \
rlm@0:     for(i = 0;i < len;i++)                                                    \
rlm@0:     {                                                                         \
rlm@0:         for(j = 0;j < numchans;j++)                                           \
rlm@0:             *(dst++) = Conv_##T1##_##T2(*(src++));                            \
rlm@0:     }                                                                         \
rlm@0: }
rlm@0: 
rlm@0: DECL_TEMPLATE(ALbyte, ALbyte)
rlm@0: DECL_TEMPLATE(ALbyte, ALubyte)
rlm@0: DECL_TEMPLATE(ALbyte, ALshort)
rlm@0: DECL_TEMPLATE(ALbyte, ALushort)
rlm@0: DECL_TEMPLATE(ALbyte, ALint)
rlm@0: DECL_TEMPLATE(ALbyte, ALuint)
rlm@0: DECL_TEMPLATE(ALbyte, ALfloat)
rlm@0: DECL_TEMPLATE(ALbyte, ALdouble)
rlm@0: DECL_TEMPLATE(ALbyte, ALmulaw)
rlm@0: DECL_TEMPLATE(ALbyte, ALbyte3)
rlm@0: DECL_TEMPLATE(ALbyte, ALubyte3)
rlm@0: 
rlm@0: DECL_TEMPLATE(ALubyte, ALbyte)
rlm@0: DECL_TEMPLATE(ALubyte, ALubyte)
rlm@0: DECL_TEMPLATE(ALubyte, ALshort)
rlm@0: DECL_TEMPLATE(ALubyte, ALushort)
rlm@0: DECL_TEMPLATE(ALubyte, ALint)
rlm@0: DECL_TEMPLATE(ALubyte, ALuint)
rlm@0: DECL_TEMPLATE(ALubyte, ALfloat)
rlm@0: DECL_TEMPLATE(ALubyte, ALdouble)
rlm@0: DECL_TEMPLATE(ALubyte, ALmulaw)
rlm@0: DECL_TEMPLATE(ALubyte, ALbyte3)
rlm@0: DECL_TEMPLATE(ALubyte, ALubyte3)
rlm@0: 
rlm@0: DECL_TEMPLATE(ALshort, ALbyte)
rlm@0: DECL_TEMPLATE(ALshort, ALubyte)
rlm@0: DECL_TEMPLATE(ALshort, ALshort)
rlm@0: DECL_TEMPLATE(ALshort, ALushort)
rlm@0: DECL_TEMPLATE(ALshort, ALint)
rlm@0: DECL_TEMPLATE(ALshort, ALuint)
rlm@0: DECL_TEMPLATE(ALshort, ALfloat)
rlm@0: DECL_TEMPLATE(ALshort, ALdouble)
rlm@0: DECL_TEMPLATE(ALshort, ALmulaw)
rlm@0: DECL_TEMPLATE(ALshort, ALbyte3)
rlm@0: DECL_TEMPLATE(ALshort, ALubyte3)
rlm@0: 
rlm@0: DECL_TEMPLATE(ALushort, ALbyte)
rlm@0: DECL_TEMPLATE(ALushort, ALubyte)
rlm@0: DECL_TEMPLATE(ALushort, ALshort)
rlm@0: DECL_TEMPLATE(ALushort, ALushort)
rlm@0: DECL_TEMPLATE(ALushort, ALint)
rlm@0: DECL_TEMPLATE(ALushort, ALuint)
rlm@0: DECL_TEMPLATE(ALushort, ALfloat)
rlm@0: DECL_TEMPLATE(ALushort, ALdouble)
rlm@0: DECL_TEMPLATE(ALushort, ALmulaw)
rlm@0: DECL_TEMPLATE(ALushort, ALbyte3)
rlm@0: DECL_TEMPLATE(ALushort, ALubyte3)
rlm@0: 
rlm@0: DECL_TEMPLATE(ALint, ALbyte)
rlm@0: DECL_TEMPLATE(ALint, ALubyte)
rlm@0: DECL_TEMPLATE(ALint, ALshort)
rlm@0: DECL_TEMPLATE(ALint, ALushort)
rlm@0: DECL_TEMPLATE(ALint, ALint)
rlm@0: DECL_TEMPLATE(ALint, ALuint)
rlm@0: DECL_TEMPLATE(ALint, ALfloat)
rlm@0: DECL_TEMPLATE(ALint, ALdouble)
rlm@0: DECL_TEMPLATE(ALint, ALmulaw)
rlm@0: DECL_TEMPLATE(ALint, ALbyte3)
rlm@0: DECL_TEMPLATE(ALint, ALubyte3)
rlm@0: 
rlm@0: DECL_TEMPLATE(ALuint, ALbyte)
rlm@0: DECL_TEMPLATE(ALuint, ALubyte)
rlm@0: DECL_TEMPLATE(ALuint, ALshort)
rlm@0: DECL_TEMPLATE(ALuint, ALushort)
rlm@0: DECL_TEMPLATE(ALuint, ALint)
rlm@0: DECL_TEMPLATE(ALuint, ALuint)
rlm@0: DECL_TEMPLATE(ALuint, ALfloat)
rlm@0: DECL_TEMPLATE(ALuint, ALdouble)
rlm@0: DECL_TEMPLATE(ALuint, ALmulaw)
rlm@0: DECL_TEMPLATE(ALuint, ALbyte3)
rlm@0: DECL_TEMPLATE(ALuint, ALubyte3)
rlm@0: 
rlm@0: DECL_TEMPLATE(ALfloat, ALbyte)
rlm@0: DECL_TEMPLATE(ALfloat, ALubyte)
rlm@0: DECL_TEMPLATE(ALfloat, ALshort)
rlm@0: DECL_TEMPLATE(ALfloat, ALushort)
rlm@0: DECL_TEMPLATE(ALfloat, ALint)
rlm@0: DECL_TEMPLATE(ALfloat, ALuint)
rlm@0: DECL_TEMPLATE(ALfloat, ALfloat)
rlm@0: DECL_TEMPLATE(ALfloat, ALdouble)
rlm@0: DECL_TEMPLATE(ALfloat, ALmulaw)
rlm@0: DECL_TEMPLATE(ALfloat, ALbyte3)
rlm@0: DECL_TEMPLATE(ALfloat, ALubyte3)
rlm@0: 
rlm@0: DECL_TEMPLATE(ALdouble, ALbyte)
rlm@0: DECL_TEMPLATE(ALdouble, ALubyte)
rlm@0: DECL_TEMPLATE(ALdouble, ALshort)
rlm@0: DECL_TEMPLATE(ALdouble, ALushort)
rlm@0: DECL_TEMPLATE(ALdouble, ALint)
rlm@0: DECL_TEMPLATE(ALdouble, ALuint)
rlm@0: DECL_TEMPLATE(ALdouble, ALfloat)
rlm@0: DECL_TEMPLATE(ALdouble, ALdouble)
rlm@0: DECL_TEMPLATE(ALdouble, ALmulaw)
rlm@0: DECL_TEMPLATE(ALdouble, ALbyte3)
rlm@0: DECL_TEMPLATE(ALdouble, ALubyte3)
rlm@0: 
rlm@0: DECL_TEMPLATE(ALmulaw, ALbyte)
rlm@0: DECL_TEMPLATE(ALmulaw, ALubyte)
rlm@0: DECL_TEMPLATE(ALmulaw, ALshort)
rlm@0: DECL_TEMPLATE(ALmulaw, ALushort)
rlm@0: DECL_TEMPLATE(ALmulaw, ALint)
rlm@0: DECL_TEMPLATE(ALmulaw, ALuint)
rlm@0: DECL_TEMPLATE(ALmulaw, ALfloat)
rlm@0: DECL_TEMPLATE(ALmulaw, ALdouble)
rlm@0: DECL_TEMPLATE(ALmulaw, ALmulaw)
rlm@0: DECL_TEMPLATE(ALmulaw, ALbyte3)
rlm@0: DECL_TEMPLATE(ALmulaw, ALubyte3)
rlm@0: 
rlm@0: DECL_TEMPLATE(ALbyte3, ALbyte)
rlm@0: DECL_TEMPLATE(ALbyte3, ALubyte)
rlm@0: DECL_TEMPLATE(ALbyte3, ALshort)
rlm@0: DECL_TEMPLATE(ALbyte3, ALushort)
rlm@0: DECL_TEMPLATE(ALbyte3, ALint)
rlm@0: DECL_TEMPLATE(ALbyte3, ALuint)
rlm@0: DECL_TEMPLATE(ALbyte3, ALfloat)
rlm@0: DECL_TEMPLATE(ALbyte3, ALdouble)
rlm@0: DECL_TEMPLATE(ALbyte3, ALmulaw)
rlm@0: DECL_TEMPLATE(ALbyte3, ALbyte3)
rlm@0: DECL_TEMPLATE(ALbyte3, ALubyte3)
rlm@0: 
rlm@0: DECL_TEMPLATE(ALubyte3, ALbyte)
rlm@0: DECL_TEMPLATE(ALubyte3, ALubyte)
rlm@0: DECL_TEMPLATE(ALubyte3, ALshort)
rlm@0: DECL_TEMPLATE(ALubyte3, ALushort)
rlm@0: DECL_TEMPLATE(ALubyte3, ALint)
rlm@0: DECL_TEMPLATE(ALubyte3, ALuint)
rlm@0: DECL_TEMPLATE(ALubyte3, ALfloat)
rlm@0: DECL_TEMPLATE(ALubyte3, ALdouble)
rlm@0: DECL_TEMPLATE(ALubyte3, ALmulaw)
rlm@0: DECL_TEMPLATE(ALubyte3, ALbyte3)
rlm@0: DECL_TEMPLATE(ALubyte3, ALubyte3)
rlm@0: 
rlm@0: #undef DECL_TEMPLATE
rlm@0: 
rlm@0: #define DECL_TEMPLATE(T)                                                      \
rlm@0: static void Convert_##T##_ALima4(T *dst, const ALima4 *src, ALuint numchans,  \
rlm@0:                                  ALuint numblocks)                            \
rlm@0: {                                                                             \
rlm@0:     ALuint i, j;                                                              \
rlm@0:     ALshort tmp[65*MAXCHANNELS]; /* Max samples an IMA4 frame can be */       \
rlm@0:     for(i = 0;i < numblocks;i++)                                              \
rlm@0:     {                                                                         \
rlm@0:         DecodeIMA4Block(tmp, src, numchans);                                  \
rlm@0:         src += 36*numchans;                                                   \
rlm@0:         for(j = 0;j < 65*numchans;j++)                                        \
rlm@0:             *(dst++) = Conv_##T##_ALshort(tmp[j]);                            \
rlm@0:     }                                                                         \
rlm@0: }
rlm@0: 
rlm@0: DECL_TEMPLATE(ALbyte)
rlm@0: DECL_TEMPLATE(ALubyte)
rlm@0: DECL_TEMPLATE(ALshort)
rlm@0: DECL_TEMPLATE(ALushort)
rlm@0: DECL_TEMPLATE(ALint)
rlm@0: DECL_TEMPLATE(ALuint)
rlm@0: DECL_TEMPLATE(ALfloat)
rlm@0: DECL_TEMPLATE(ALdouble)
rlm@0: DECL_TEMPLATE(ALmulaw)
rlm@0: DECL_TEMPLATE(ALbyte3)
rlm@0: DECL_TEMPLATE(ALubyte3)
rlm@0: 
rlm@0: #undef DECL_TEMPLATE
rlm@0: 
rlm@0: #define DECL_TEMPLATE(T)                                                      \
rlm@0: static void Convert_ALima4_##T(ALima4 *dst, const T *src, ALuint numchans,    \
rlm@0:                                ALuint numblocks)                              \
rlm@0: {                                                                             \
rlm@0:     ALuint i, j;                                                              \
rlm@0:     ALshort tmp[65*MAXCHANNELS]; /* Max samples an IMA4 frame can be */       \
rlm@0:     ALint sample[MAXCHANNELS] = {0,0,0,0,0,0,0,0};                            \
rlm@0:     ALint index[MAXCHANNELS] = {0,0,0,0,0,0,0,0};                             \
rlm@0:     for(i = 0;i < numblocks;i++)                                              \
rlm@0:     {                                                                         \
rlm@0:         for(j = 0;j < 65*numchans;j++)                                        \
rlm@0:             tmp[j] = Conv_ALshort_##T(*(src++));                              \
rlm@0:         EncodeIMA4Block(dst, tmp, sample, index, numchans);                   \
rlm@0:         dst += 36*numchans;                                                   \
rlm@0:     }                                                                         \
rlm@0: }
rlm@0: 
rlm@0: DECL_TEMPLATE(ALbyte)
rlm@0: DECL_TEMPLATE(ALubyte)
rlm@0: DECL_TEMPLATE(ALshort)
rlm@0: DECL_TEMPLATE(ALushort)
rlm@0: DECL_TEMPLATE(ALint)
rlm@0: DECL_TEMPLATE(ALuint)
rlm@0: DECL_TEMPLATE(ALfloat)
rlm@0: DECL_TEMPLATE(ALdouble)
rlm@0: DECL_TEMPLATE(ALmulaw)
rlm@0: static void Convert_ALima4_ALima4(ALima4 *dst, const ALima4 *src,
rlm@0:                                   ALuint numchans, ALuint numblocks)
rlm@0: { memcpy(dst, src, numblocks*36*numchans); }
rlm@0: DECL_TEMPLATE(ALbyte3)
rlm@0: DECL_TEMPLATE(ALubyte3)
rlm@0: 
rlm@0: #undef DECL_TEMPLATE
rlm@0: 
rlm@0: #define DECL_TEMPLATE(T)                                                      \
rlm@0: static void Convert_##T(T *dst, const ALvoid *src, enum UserFmtType srcType,  \
rlm@0:                         ALsizei numchans, ALsizei len)                        \
rlm@0: {                                                                             \
rlm@0:     switch(srcType)                                                           \
rlm@0:     {                                                                         \
rlm@0:         case UserFmtByte:                                                     \
rlm@0:             Convert_##T##_ALbyte(dst, src, numchans, len);                    \
rlm@0:             break;                                                            \
rlm@0:         case UserFmtUByte:                                                    \
rlm@0:             Convert_##T##_ALubyte(dst, src, numchans, len);                   \
rlm@0:             break;                                                            \
rlm@0:         case UserFmtShort:                                                    \
rlm@0:             Convert_##T##_ALshort(dst, src, numchans, len);                   \
rlm@0:             break;                                                            \
rlm@0:         case UserFmtUShort:                                                   \
rlm@0:             Convert_##T##_ALushort(dst, src, numchans, len);                  \
rlm@0:             break;                                                            \
rlm@0:         case UserFmtInt:                                                      \
rlm@0:             Convert_##T##_ALint(dst, src, numchans, len);                     \
rlm@0:             break;                                                            \
rlm@0:         case UserFmtUInt:                                                     \
rlm@0:             Convert_##T##_ALuint(dst, src, numchans, len);                    \
rlm@0:             break;                                                            \
rlm@0:         case UserFmtFloat:                                                    \
rlm@0:             Convert_##T##_ALfloat(dst, src, numchans, len);                   \
rlm@0:             break;                                                            \
rlm@0:         case UserFmtDouble:                                                   \
rlm@0:             Convert_##T##_ALdouble(dst, src, numchans, len);                  \
rlm@0:             break;                                                            \
rlm@0:         case UserFmtMulaw:                                                    \
rlm@0:             Convert_##T##_ALmulaw(dst, src, numchans, len);                   \
rlm@0:             break;                                                            \
rlm@0:         case UserFmtIMA4:                                                     \
rlm@0:             Convert_##T##_ALima4(dst, src, numchans, len);                    \
rlm@0:             break;                                                            \
rlm@0:         case UserFmtByte3:                                                    \
rlm@0:             Convert_##T##_ALbyte3(dst, src, numchans, len);                   \
rlm@0:             break;                                                            \
rlm@0:         case UserFmtUByte3:                                                   \
rlm@0:             Convert_##T##_ALubyte3(dst, src, numchans, len);                  \
rlm@0:             break;                                                            \
rlm@0:     }                                                                         \
rlm@0: }
rlm@0: 
rlm@0: DECL_TEMPLATE(ALbyte)
rlm@0: DECL_TEMPLATE(ALubyte)
rlm@0: DECL_TEMPLATE(ALshort)
rlm@0: DECL_TEMPLATE(ALushort)
rlm@0: DECL_TEMPLATE(ALint)
rlm@0: DECL_TEMPLATE(ALuint)
rlm@0: DECL_TEMPLATE(ALfloat)
rlm@0: DECL_TEMPLATE(ALdouble)
rlm@0: DECL_TEMPLATE(ALmulaw)
rlm@0: DECL_TEMPLATE(ALima4)
rlm@0: DECL_TEMPLATE(ALbyte3)
rlm@0: DECL_TEMPLATE(ALubyte3)
rlm@0: 
rlm@0: #undef DECL_TEMPLATE
rlm@0: 
rlm@0: 
rlm@0: static void ConvertData(ALvoid *dst, enum UserFmtType dstType, const ALvoid *src, enum UserFmtType srcType, ALsizei numchans, ALsizei len)
rlm@0: {
rlm@0:     switch(dstType)
rlm@0:     {
rlm@0:         case UserFmtByte:
rlm@0:             Convert_ALbyte(dst, src, srcType, numchans, len);
rlm@0:             break;
rlm@0:         case UserFmtUByte:
rlm@0:             Convert_ALubyte(dst, src, srcType, numchans, len);
rlm@0:             break;
rlm@0:         case UserFmtShort:
rlm@0:             Convert_ALshort(dst, src, srcType, numchans, len);
rlm@0:             break;
rlm@0:         case UserFmtUShort:
rlm@0:             Convert_ALushort(dst, src, srcType, numchans, len);
rlm@0:             break;
rlm@0:         case UserFmtInt:
rlm@0:             Convert_ALint(dst, src, srcType, numchans, len);
rlm@0:             break;
rlm@0:         case UserFmtUInt:
rlm@0:             Convert_ALuint(dst, src, srcType, numchans, len);
rlm@0:             break;
rlm@0:         case UserFmtFloat:
rlm@0:             Convert_ALfloat(dst, src, srcType, numchans, len);
rlm@0:             break;
rlm@0:         case UserFmtDouble:
rlm@0:             Convert_ALdouble(dst, src, srcType, numchans, len);
rlm@0:             break;
rlm@0:         case UserFmtMulaw:
rlm@0:             Convert_ALmulaw(dst, src, srcType, numchans, len);
rlm@0:             break;
rlm@0:         case UserFmtIMA4:
rlm@0:             Convert_ALima4(dst, src, srcType, numchans, len);
rlm@0:             break;
rlm@0:         case UserFmtByte3:
rlm@0:             Convert_ALbyte3(dst, src, srcType, numchans, len);
rlm@0:             break;
rlm@0:         case UserFmtUByte3:
rlm@0:             Convert_ALubyte3(dst, src, srcType, numchans, len);
rlm@0:             break;
rlm@0:     }
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: /*
rlm@0:  * LoadData
rlm@0:  *
rlm@0:  * Loads the specified data into the buffer, using the specified formats.
rlm@0:  * Currently, the new format must have the same channel configuration as the
rlm@0:  * original format.
rlm@0:  */
rlm@0: static ALenum LoadData(ALbuffer *ALBuf, ALuint freq, ALenum NewFormat, ALsizei frames, enum UserFmtChannels SrcChannels, enum UserFmtType SrcType, const ALvoid *data, ALboolean storesrc)
rlm@0: {
rlm@0:     ALuint NewChannels, NewBytes;
rlm@0:     enum FmtChannels DstChannels;
rlm@0:     enum FmtType DstType;
rlm@0:     ALuint64 newsize;
rlm@0:     ALvoid *temp;
rlm@0: 
rlm@0:     if(DecomposeFormat(NewFormat, &DstChannels, &DstType) == AL_FALSE ||
rlm@0:        (long)SrcChannels != (long)DstChannels)
rlm@0:         return AL_INVALID_ENUM;
rlm@0: 
rlm@0:     NewChannels = ChannelsFromFmt(DstChannels);
rlm@0:     NewBytes = BytesFromFmt(DstType);
rlm@0: 
rlm@0:     if(SrcType == UserFmtIMA4)
rlm@0:     {
rlm@0:         ALuint OrigChannels = ChannelsFromUserFmt(SrcChannels);
rlm@0: 
rlm@0:         newsize = frames;
rlm@0:         newsize *= 65;
rlm@0:         newsize *= NewBytes;
rlm@0:         newsize *= NewChannels;
rlm@0:         if(newsize > INT_MAX)
rlm@0:             return AL_OUT_OF_MEMORY;
rlm@0: 
rlm@0:         temp = realloc(ALBuf->data, newsize);
rlm@0:         if(!temp && newsize) return AL_OUT_OF_MEMORY;
rlm@0:         ALBuf->data = temp;
rlm@0:         ALBuf->size = newsize;
rlm@0: 
rlm@0:         if(data != NULL)
rlm@0:             ConvertData(ALBuf->data, DstType, data, SrcType, NewChannels, frames);
rlm@0: 
rlm@0:         if(storesrc)
rlm@0:         {
rlm@0:             ALBuf->OriginalChannels = SrcChannels;
rlm@0:             ALBuf->OriginalType     = SrcType;
rlm@0:             ALBuf->OriginalSize     = frames * 36 * OrigChannels;
rlm@0:             ALBuf->OriginalAlign    = 36 * OrigChannels;
rlm@0:         }
rlm@0:     }
rlm@0:     else
rlm@0:     {
rlm@0:         ALuint OrigBytes = BytesFromUserFmt(SrcType);
rlm@0:         ALuint OrigChannels = ChannelsFromUserFmt(SrcChannels);
rlm@0: 
rlm@0:         newsize = frames;
rlm@0:         newsize *= NewBytes;
rlm@0:         newsize *= NewChannels;
rlm@0:         if(newsize > INT_MAX)
rlm@0:             return AL_OUT_OF_MEMORY;
rlm@0: 
rlm@0:         temp = realloc(ALBuf->data, newsize);
rlm@0:         if(!temp && newsize) return AL_OUT_OF_MEMORY;
rlm@0:         ALBuf->data = temp;
rlm@0:         ALBuf->size = newsize;
rlm@0: 
rlm@0:         if(data != NULL)
rlm@0:             ConvertData(ALBuf->data, DstType, data, SrcType, NewChannels, frames);
rlm@0: 
rlm@0:         if(storesrc)
rlm@0:         {
rlm@0:             ALBuf->OriginalChannels = SrcChannels;
rlm@0:             ALBuf->OriginalType     = SrcType;
rlm@0:             ALBuf->OriginalSize     = frames * OrigBytes * OrigChannels;
rlm@0:             ALBuf->OriginalAlign    = OrigBytes * OrigChannels;
rlm@0:         }
rlm@0:     }
rlm@0: 
rlm@0:     if(!storesrc)
rlm@0:     {
rlm@0:         ALBuf->OriginalChannels = DstChannels;
rlm@0:         ALBuf->OriginalType     = DstType;
rlm@0:         ALBuf->OriginalSize     = frames * NewBytes * NewChannels;
rlm@0:         ALBuf->OriginalAlign    = NewBytes * NewChannels;
rlm@0:     }
rlm@0:     ALBuf->Frequency = freq;
rlm@0:     ALBuf->FmtChannels = DstChannels;
rlm@0:     ALBuf->FmtType = DstType;
rlm@0: 
rlm@0:     ALBuf->LoopStart = 0;
rlm@0:     ALBuf->LoopEnd = newsize / NewChannels / NewBytes;
rlm@0: 
rlm@0:     return AL_NO_ERROR;
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: ALuint BytesFromUserFmt(enum UserFmtType type)
rlm@0: {
rlm@0:     switch(type)
rlm@0:     {
rlm@0:     case UserFmtByte: return sizeof(ALbyte);
rlm@0:     case UserFmtUByte: return sizeof(ALubyte);
rlm@0:     case UserFmtShort: return sizeof(ALshort);
rlm@0:     case UserFmtUShort: return sizeof(ALushort);
rlm@0:     case UserFmtInt: return sizeof(ALint);
rlm@0:     case UserFmtUInt: return sizeof(ALuint);
rlm@0:     case UserFmtFloat: return sizeof(ALfloat);
rlm@0:     case UserFmtDouble: return sizeof(ALdouble);
rlm@0:     case UserFmtByte3: return sizeof(ALbyte3);
rlm@0:     case UserFmtUByte3: return sizeof(ALubyte3);
rlm@0:     case UserFmtMulaw: return sizeof(ALubyte);
rlm@0:     case UserFmtIMA4: break; /* not handled here */
rlm@0:     }
rlm@0:     return 0;
rlm@0: }
rlm@0: ALuint ChannelsFromUserFmt(enum UserFmtChannels chans)
rlm@0: {
rlm@0:     switch(chans)
rlm@0:     {
rlm@0:     case UserFmtMono: return 1;
rlm@0:     case UserFmtStereo: return 2;
rlm@0:     case UserFmtRear: return 2;
rlm@0:     case UserFmtQuad: return 4;
rlm@0:     case UserFmtX51: return 6;
rlm@0:     case UserFmtX61: return 7;
rlm@0:     case UserFmtX71: return 8;
rlm@0:     }
rlm@0:     return 0;
rlm@0: }
rlm@0: ALboolean DecomposeUserFormat(ALenum format, enum UserFmtChannels *chans,
rlm@0:                               enum UserFmtType *type)
rlm@0: {
rlm@0:     switch(format)
rlm@0:     {
rlm@0:         case AL_FORMAT_MONO8:
rlm@0:             *chans = UserFmtMono;
rlm@0:             *type  = UserFmtUByte;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_MONO16:
rlm@0:             *chans = UserFmtMono;
rlm@0:             *type  = UserFmtShort;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_MONO_FLOAT32:
rlm@0:             *chans = UserFmtMono;
rlm@0:             *type  = UserFmtFloat;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_MONO_DOUBLE_EXT:
rlm@0:             *chans = UserFmtMono;
rlm@0:             *type  = UserFmtDouble;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_MONO_IMA4:
rlm@0:             *chans = UserFmtMono;
rlm@0:             *type  = UserFmtIMA4;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_STEREO8:
rlm@0:             *chans = UserFmtStereo;
rlm@0:             *type  = UserFmtUByte;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_STEREO16:
rlm@0:             *chans = UserFmtStereo;
rlm@0:             *type  = UserFmtShort;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_STEREO_FLOAT32:
rlm@0:             *chans = UserFmtStereo;
rlm@0:             *type  = UserFmtFloat;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_STEREO_DOUBLE_EXT:
rlm@0:             *chans = UserFmtStereo;
rlm@0:             *type  = UserFmtDouble;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_STEREO_IMA4:
rlm@0:             *chans = UserFmtStereo;
rlm@0:             *type  = UserFmtIMA4;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_QUAD8_LOKI:
rlm@0:         case AL_FORMAT_QUAD8:
rlm@0:             *chans = UserFmtQuad;
rlm@0:             *type  = UserFmtUByte;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_QUAD16_LOKI:
rlm@0:         case AL_FORMAT_QUAD16:
rlm@0:             *chans = UserFmtQuad;
rlm@0:             *type  = UserFmtShort;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_QUAD32:
rlm@0:             *chans = UserFmtQuad;
rlm@0:             *type  = UserFmtFloat;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_REAR8:
rlm@0:             *chans = UserFmtRear;
rlm@0:             *type  = UserFmtUByte;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_REAR16:
rlm@0:             *chans = UserFmtRear;
rlm@0:             *type  = UserFmtShort;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_REAR32:
rlm@0:             *chans = UserFmtRear;
rlm@0:             *type  = UserFmtFloat;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_51CHN8:
rlm@0:             *chans = UserFmtX51;
rlm@0:             *type  = UserFmtUByte;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_51CHN16:
rlm@0:             *chans = UserFmtX51;
rlm@0:             *type  = UserFmtShort;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_51CHN32:
rlm@0:             *chans = UserFmtX51;
rlm@0:             *type  = UserFmtFloat;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_61CHN8:
rlm@0:             *chans = UserFmtX61;
rlm@0:             *type  = UserFmtUByte;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_61CHN16:
rlm@0:             *chans = UserFmtX61;
rlm@0:             *type  = UserFmtShort;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_61CHN32:
rlm@0:             *chans = UserFmtX61;
rlm@0:             *type  = UserFmtFloat;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_71CHN8:
rlm@0:             *chans = UserFmtX71;
rlm@0:             *type  = UserFmtUByte;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_71CHN16:
rlm@0:             *chans = UserFmtX71;
rlm@0:             *type  = UserFmtShort;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_71CHN32:
rlm@0:             *chans = UserFmtX71;
rlm@0:             *type  = UserFmtFloat;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_MONO_MULAW:
rlm@0:             *chans = UserFmtMono;
rlm@0:             *type  = UserFmtMulaw;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_STEREO_MULAW:
rlm@0:             *chans = UserFmtStereo;
rlm@0:             *type  = UserFmtMulaw;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_QUAD_MULAW:
rlm@0:             *chans = UserFmtQuad;
rlm@0:             *type  = UserFmtMulaw;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_REAR_MULAW:
rlm@0:             *chans = UserFmtRear;
rlm@0:             *type  = UserFmtMulaw;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_51CHN_MULAW:
rlm@0:             *chans = UserFmtX51;
rlm@0:             *type  = UserFmtMulaw;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_61CHN_MULAW:
rlm@0:             *chans = UserFmtX61;
rlm@0:             *type  = UserFmtMulaw;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_71CHN_MULAW:
rlm@0:             *chans = UserFmtX71;
rlm@0:             *type  = UserFmtMulaw;
rlm@0:             return AL_TRUE;
rlm@0:     }
rlm@0:     return AL_FALSE;
rlm@0: }
rlm@0: 
rlm@0: ALuint BytesFromFmt(enum FmtType type)
rlm@0: {
rlm@0:     switch(type)
rlm@0:     {
rlm@0:     case FmtByte: return sizeof(ALbyte);
rlm@0:     case FmtShort: return sizeof(ALshort);
rlm@0:     case FmtFloat: return sizeof(ALfloat);
rlm@0:     }
rlm@0:     return 0;
rlm@0: }
rlm@0: ALuint ChannelsFromFmt(enum FmtChannels chans)
rlm@0: {
rlm@0:     switch(chans)
rlm@0:     {
rlm@0:     case FmtMono: return 1;
rlm@0:     case FmtStereo: return 2;
rlm@0:     case FmtRear: return 2;
rlm@0:     case FmtQuad: return 4;
rlm@0:     case FmtX51: return 6;
rlm@0:     case FmtX61: return 7;
rlm@0:     case FmtX71: return 8;
rlm@0:     }
rlm@0:     return 0;
rlm@0: }
rlm@0: ALboolean DecomposeFormat(ALenum format, enum FmtChannels *chans, enum FmtType *type)
rlm@0: {
rlm@0:     switch(format)
rlm@0:     {
rlm@0:         case AL_MONO8:
rlm@0:             *chans = FmtMono;
rlm@0:             *type  = FmtByte;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_MONO16:
rlm@0:             *chans = FmtMono;
rlm@0:             *type  = FmtShort;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_MONO32F:
rlm@0:             *chans = FmtMono;
rlm@0:             *type  = FmtFloat;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_STEREO8:
rlm@0:             *chans = FmtStereo;
rlm@0:             *type  = FmtByte;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_STEREO16:
rlm@0:             *chans = FmtStereo;
rlm@0:             *type  = FmtShort;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_STEREO32F:
rlm@0:             *chans = FmtStereo;
rlm@0:             *type  = FmtFloat;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_QUAD8_LOKI:
rlm@0:         case AL_QUAD8:
rlm@0:             *chans = FmtQuad;
rlm@0:             *type  = FmtByte;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_FORMAT_QUAD16_LOKI:
rlm@0:         case AL_QUAD16:
rlm@0:             *chans = FmtQuad;
rlm@0:             *type  = FmtShort;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_QUAD32F:
rlm@0:             *chans = FmtQuad;
rlm@0:             *type  = FmtFloat;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_REAR8:
rlm@0:             *chans = FmtRear;
rlm@0:             *type  = FmtByte;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_REAR16:
rlm@0:             *chans = FmtRear;
rlm@0:             *type  = FmtShort;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_REAR32F:
rlm@0:             *chans = FmtRear;
rlm@0:             *type  = FmtFloat;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_5POINT1_8:
rlm@0:             *chans = FmtX51;
rlm@0:             *type  = FmtByte;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_5POINT1_16:
rlm@0:             *chans = FmtX51;
rlm@0:             *type  = FmtShort;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_5POINT1_32F:
rlm@0:             *chans = FmtX51;
rlm@0:             *type  = FmtFloat;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_6POINT1_8:
rlm@0:             *chans = FmtX61;
rlm@0:             *type  = FmtByte;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_6POINT1_16:
rlm@0:             *chans = FmtX61;
rlm@0:             *type  = FmtShort;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_6POINT1_32F:
rlm@0:             *chans = FmtX61;
rlm@0:             *type  = FmtFloat;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_7POINT1_8:
rlm@0:             *chans = FmtX71;
rlm@0:             *type  = FmtByte;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_7POINT1_16:
rlm@0:             *chans = FmtX71;
rlm@0:             *type  = FmtShort;
rlm@0:             return AL_TRUE;
rlm@0:         case AL_7POINT1_32F:
rlm@0:             *chans = FmtX71;
rlm@0:             *type  = FmtFloat;
rlm@0:             return AL_TRUE;
rlm@0:     }
rlm@0:     return AL_FALSE;
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: static ALboolean IsValidType(ALenum type)
rlm@0: {
rlm@0:     switch(type)
rlm@0:     {
rlm@0:         case AL_BYTE:
rlm@0:         case AL_UNSIGNED_BYTE:
rlm@0:         case AL_SHORT:
rlm@0:         case AL_UNSIGNED_SHORT:
rlm@0:         case AL_INT:
rlm@0:         case AL_UNSIGNED_INT:
rlm@0:         case AL_FLOAT:
rlm@0:         case AL_DOUBLE:
rlm@0:         case AL_MULAW:
rlm@0:         case AL_IMA4:
rlm@0:         case AL_BYTE3:
rlm@0:         case AL_UNSIGNED_BYTE3:
rlm@0:             return AL_TRUE;
rlm@0:     }
rlm@0:     return AL_FALSE;
rlm@0: }
rlm@0: 
rlm@0: static ALboolean IsValidChannels(ALenum channels)
rlm@0: {
rlm@0:     switch(channels)
rlm@0:     {
rlm@0:         case AL_MONO:
rlm@0:         case AL_STEREO:
rlm@0:         case AL_REAR:
rlm@0:         case AL_QUAD:
rlm@0:         case AL_5POINT1:
rlm@0:         case AL_6POINT1:
rlm@0:         case AL_7POINT1:
rlm@0:             return AL_TRUE;
rlm@0:     }
rlm@0:     return AL_FALSE;
rlm@0: }
rlm@0: 
rlm@0: 
rlm@0: /*
rlm@0:  *    ReleaseALBuffers()
rlm@0:  *
rlm@0:  *    INTERNAL: Called to destroy any buffers that still exist on the device
rlm@0:  */
rlm@0: ALvoid ReleaseALBuffers(ALCdevice *device)
rlm@0: {
rlm@0:     ALsizei i;
rlm@0:     for(i = 0;i < device->BufferMap.size;i++)
rlm@0:     {
rlm@0:         ALbuffer *temp = device->BufferMap.array[i].value;
rlm@0:         device->BufferMap.array[i].value = NULL;
rlm@0: 
rlm@0:         free(temp->data);
rlm@0: 
rlm@0:         FreeThunkEntry(temp->buffer);
rlm@0:         memset(temp, 0, sizeof(ALbuffer));
rlm@0:         free(temp);
rlm@0:     }
rlm@0: }