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;
}
/*
* 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.
*/
ALenum LoadData(ALbuffer *ALBuf, ALuint freq, ALenum NewFormat, ALsizei frames, enum UserFmtChannels SrcChannels, enum UserFmtType SrcType, const ALvoid *data, ALsizei align, 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(ReadRef(&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, (enum UserFmtType)DstType, data, SrcType, NewChannels, frames, align);
if(storesrc)
{
ALBuf->OriginalChannels = SrcChannels;
ALBuf->OriginalType = SrcType;
if(SrcType == UserFmtIMA4)
{
ALsizei byte_align = ((align-1)/2 + 4) * ChannelsFromUserFmt(SrcChannels);
ALBuf->OriginalSize = frames / align * byte_align;
ALBuf->OriginalAlign = align;
}
else if(SrcType == UserFmtMSADPCM)
{
ALsizei byte_align = ((align-2)/2 + 7) * ChannelsFromUserFmt(SrcChannels);
ALBuf->OriginalSize = frames / align * byte_align;
ALBuf->OriginalAlign = align;
}
else
{
ALBuf->OriginalSize = frames * FrameSizeFromUserFmt(SrcChannels, SrcType);
ALBuf->OriginalAlign = 1;
}
}
else
{
ALBuf->OriginalChannels = (enum UserFmtChannels)DstChannels;
ALBuf->OriginalType = (enum UserFmtType)DstType;
ALBuf->OriginalSize = frames * NewBytes * NewChannels;
ALBuf->OriginalAlign = 1;
}
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;
}
/*
* 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.
*/
ALenum LoadData(ALbuffer *ALBuf, ALuint freq, ALenum NewFormat, ALsizei frames, enum UserFmtChannels SrcChannels, enum UserFmtType SrcType, const ALvoid *data, ALsizei align, ALboolean storesrc)
{
enum FmtChannels DstChannels = FmtMono;
enum FmtType DstType = FmtByte;
ALuint NewChannels, NewBytes;
ALuint64 newsize;
if(DecomposeFormat(NewFormat, &DstChannels, &DstType) == AL_FALSE)
return AL_INVALID_ENUM;
if((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(ReadRef(&ALBuf->ref) != 0)
{
WriteUnlock(&ALBuf->lock);
return AL_INVALID_OPERATION;
}
/* Round up to the next 16-byte multiple. This could reallocate only when
* increasing or the new size is less than half the current, but then the
* buffer's AL_SIZE would not be very reliable for accounting buffer memory
* usage, and reporting the real size could cause problems for apps that
* use AL_SIZE to try to get the buffer's play length.
*/
newsize = (newsize+15) & ~0xf;
if(newsize != ALBuf->BytesAlloc)
{
void *temp = al_calloc(16, (size_t)newsize);
if(!temp && newsize)
{
WriteUnlock(&ALBuf->lock);
return AL_OUT_OF_MEMORY;
}
al_free(ALBuf->data);
ALBuf->data = temp;
ALBuf->BytesAlloc = (ALuint)newsize;
}
if(data != NULL)
ConvertData(ALBuf->data, (enum UserFmtType)DstType, data, SrcType, NewChannels, frames, align);
if(storesrc)
{
ALBuf->OriginalChannels = SrcChannels;
ALBuf->OriginalType = SrcType;
if(SrcType == UserFmtIMA4)
{
ALsizei byte_align = ((align-1)/2 + 4) * ChannelsFromUserFmt(SrcChannels);
ALBuf->OriginalSize = frames / align * byte_align;
ALBuf->OriginalAlign = align;
}
else if(SrcType == UserFmtMSADPCM)
{
ALsizei byte_align = ((align-2)/2 + 7) * ChannelsFromUserFmt(SrcChannels);
ALBuf->OriginalSize = frames / align * byte_align;
ALBuf->OriginalAlign = align;
}
else
{
ALBuf->OriginalSize = frames * FrameSizeFromUserFmt(SrcChannels, SrcType);
ALBuf->OriginalAlign = 1;
}
}
else
{
ALBuf->OriginalChannels = (enum UserFmtChannels)DstChannels;
ALBuf->OriginalType = (enum UserFmtType)DstType;
ALBuf->OriginalSize = frames * NewBytes * NewChannels;
ALBuf->OriginalAlign = 1;
}
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;
}
