diff options
Diffstat (limited to 'Alc')
| -rw-r--r-- | Alc/mixer.c | 51 |
1 files changed, 25 insertions, 26 deletions
diff --git a/Alc/mixer.c b/Alc/mixer.c index d6c0714b..2ce78206 100644 --- a/Alc/mixer.c +++ b/Alc/mixer.c @@ -592,7 +592,7 @@ ALvoid MixSource(ALsource *Source, ALCdevice *Device, ALuint SamplesToDo) BufferSize = (ALuint)((DataSize64 > STACK_DATA_SIZE) ? STACK_DATA_SIZE : DataSize64); - BufferSize -= BufferSize%FrameSize; + BufferSize /= FrameSize; if(Source->lSourceType == AL_STATIC) { @@ -607,13 +607,13 @@ ALvoid MixSource(ALsource *Source, ALCdevice *Device, ALuint SamplesToDo) Looping = AL_FALSE; if(DataPosInt >= BufferPrePadding) - pos = (DataPosInt-BufferPrePadding)*FrameSize; + pos = DataPosInt - BufferPrePadding; else { - DataSize = (BufferPrePadding-DataPosInt)*FrameSize; + DataSize = BufferPrePadding - DataPosInt; DataSize = minu(BufferSize, DataSize); - memset(&SrcData[SrcDataSize], 0, DataSize); + memset(&SrcData[SrcDataSize*FrameSize], 0, DataSize*FrameSize); SrcDataSize += DataSize; BufferSize -= DataSize; @@ -622,14 +622,14 @@ ALvoid MixSource(ALsource *Source, ALCdevice *Device, ALuint SamplesToDo) /* Copy what's left to play in the source buffer, and clear the * rest of the temp buffer */ - DataSize = ALBuffer->size - pos; + DataSize = ALBuffer->size/FrameSize - pos; DataSize = minu(BufferSize, DataSize); - memcpy(&SrcData[SrcDataSize], &Data[pos], DataSize); + memcpy(&SrcData[SrcDataSize*FrameSize], &Data[pos*FrameSize], DataSize*FrameSize); SrcDataSize += DataSize; BufferSize -= DataSize; - memset(&SrcData[SrcDataSize], 0, BufferSize); + memset(&SrcData[SrcDataSize*FrameSize], 0, BufferSize*FrameSize); SrcDataSize += BufferSize; BufferSize -= BufferSize; } @@ -645,16 +645,15 @@ ALvoid MixSource(ALsource *Source, ALCdevice *Device, ALuint SamplesToDo) pos += LoopEnd-LoopStart; pos -= BufferPrePadding; pos += LoopStart; - pos *= FrameSize; } else if(DataPosInt >= BufferPrePadding) - pos = (DataPosInt-BufferPrePadding)*FrameSize; + pos = DataPosInt - BufferPrePadding; else { - DataSize = (BufferPrePadding-DataPosInt)*FrameSize; + DataSize = BufferPrePadding - DataPosInt; DataSize = minu(BufferSize, DataSize); - memset(&SrcData[SrcDataSize], 0, DataSize); + memset(&SrcData[SrcDataSize*FrameSize], 0, DataSize*FrameSize); SrcDataSize += DataSize; BufferSize -= DataSize; @@ -663,19 +662,19 @@ ALvoid MixSource(ALsource *Source, ALCdevice *Device, ALuint SamplesToDo) /* Copy what's left of this loop iteration, then copy repeats * of the loop section */ - DataSize = LoopEnd*FrameSize - pos; + DataSize = LoopEnd - pos; DataSize = minu(BufferSize, DataSize); - memcpy(&SrcData[SrcDataSize], &Data[pos], DataSize); + memcpy(&SrcData[SrcDataSize*FrameSize], &Data[pos*FrameSize], DataSize*FrameSize); SrcDataSize += DataSize; BufferSize -= DataSize; - DataSize = (LoopEnd-LoopStart) * FrameSize; + DataSize = LoopEnd-LoopStart; while(BufferSize > 0) { DataSize = minu(BufferSize, DataSize); - memcpy(&SrcData[SrcDataSize], &Data[LoopStart*FrameSize], DataSize); + memcpy(&SrcData[SrcDataSize*FrameSize], &Data[LoopStart*FrameSize], DataSize*FrameSize); SrcDataSize += DataSize; BufferSize -= DataSize; } @@ -688,17 +687,17 @@ ALvoid MixSource(ALsource *Source, ALCdevice *Device, ALuint SamplesToDo) ALuint pos; if(DataPosInt >= BufferPrePadding) - pos = (DataPosInt-BufferPrePadding)*FrameSize; + pos = DataPosInt - BufferPrePadding; else { - pos = (BufferPrePadding-DataPosInt)*FrameSize; + pos = BufferPrePadding - DataPosInt; while(pos > 0) { if(!BufferListIter->prev && !Looping) { ALuint DataSize = minu(BufferSize, pos); - memset(&SrcData[SrcDataSize], 0, DataSize); + memset(&SrcData[SrcDataSize*FrameSize], 0, DataSize*FrameSize); SrcDataSize += DataSize; BufferSize -= DataSize; @@ -716,12 +715,12 @@ ALvoid MixSource(ALsource *Source, ALCdevice *Device, ALuint SamplesToDo) if(BufferListIter->buffer) { - if((ALuint)BufferListIter->buffer->size > pos) + if((ALuint)BufferListIter->buffer->size/FrameSize > pos) { - pos = BufferListIter->buffer->size - pos; + pos = BufferListIter->buffer->size/FrameSize - pos; break; } - pos -= BufferListIter->buffer->size; + pos -= BufferListIter->buffer->size/FrameSize; } } } @@ -732,19 +731,19 @@ ALvoid MixSource(ALsource *Source, ALCdevice *Device, ALuint SamplesToDo) if((ALBuffer=BufferListIter->buffer) != NULL) { const ALubyte *Data = ALBuffer->data; - ALuint DataSize = ALBuffer->size; + ALuint DataSize = ALBuffer->size/FrameSize; /* Skip the data already played */ if(DataSize <= pos) pos -= DataSize; else { - Data += pos; + Data += pos*FrameSize; DataSize -= pos; pos -= pos; DataSize = minu(BufferSize, DataSize); - memcpy(&SrcData[SrcDataSize], Data, DataSize); + memcpy(&SrcData[SrcDataSize*FrameSize], Data, DataSize*FrameSize); SrcDataSize += DataSize; BufferSize -= DataSize; } @@ -754,7 +753,7 @@ ALvoid MixSource(ALsource *Source, ALCdevice *Device, ALuint SamplesToDo) BufferListIter = Source->queue; else if(!BufferListIter) { - memset(&SrcData[SrcDataSize], 0, BufferSize); + memset(&SrcData[SrcDataSize*FrameSize], 0, BufferSize*FrameSize); SrcDataSize += BufferSize; BufferSize -= BufferSize; } @@ -762,7 +761,7 @@ ALvoid MixSource(ALsource *Source, ALCdevice *Device, ALuint SamplesToDo) } /* Figure out how many samples we can mix. */ - DataSize64 = SrcDataSize / FrameSize; + DataSize64 = SrcDataSize; DataSize64 -= BufferPadding+BufferPrePadding; DataSize64 <<= FRACTIONBITS; DataSize64 -= increment; |