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Add support for multichannel out

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This commit is contained in:
Emlyn Bolton 2020-04-13 14:55:29 -07:00
parent 9cbcbb1471
commit 98d9b4e064
1 changed files with 19 additions and 0 deletions
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19
mac/sound.cpp
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@ -885,6 +885,25 @@ if ( iNumInChan == 4 )
if ( outOutputData->mBuffers[0].mDataByteSize ==
static_cast<UInt32> ( iCoreAudioBufferSizeMono * iNumOutChan * 4 ) )
{
// Outputs are to individual buffers too, rather than using channels
Float32* pLeftOutData = static_cast<Float32*> ( outOutputData->mBuffers[iSelOutputLeftChannel].mData );
Float32* pRightOutData = static_cast<Float32*> ( outOutputData->mBuffers[iSelOutputRightChannel].mData );
// copy output data
for ( int i = 0; i < iCoreAudioBufferSizeMono; i++ )
{
// left
pLeftOutData[i] =
(Float32) pSound->vecsTmpAudioSndCrdStereo[2 * i] / _MAXSHORT;
// right
pRightOutData[i] =
(Float32) pSound->vecsTmpAudioSndCrdStereo[2 * i + 1] / _MAXSHORT;
}
} else if ( outOutputData->mBuffers[0].mDataByteSize ==
static_cast<UInt32> ( iCoreAudioBufferSizeMono * iNumOutChan * 4 ) ) {
// Outputs are 2 channels in one buffer
// get a pointer to the input data of the correct type
Float32* pOutData = static_cast<Float32*> ( outOutputData->mBuffers[0].mData );