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Fix ugly noise feedback bug for AUs in Logic

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This commit is contained in:
hogliux 2016-02-19 12:31:37 +00:00
parent f4ac12820c
commit 32e34bc808
1 changed files with 30 additions and 19 deletions
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49
modules/juce_audio_plugin_client/AU/juce_AU_Wrapper.mm
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@ -1101,34 +1101,45 @@ public:
const unsigned int numInChannels = (input != nullptr ? input ->GetStreamFormat().mChannelsPerFrame : 0);
const unsigned int numOutChannels = (output != nullptr ? output->GetStreamFormat().mChannelsPerFrame : 0);
if (numOutChannels > 0 && numInChannels >= numOutChannels)
if (numInChannels >= numOutChannels)
{
// the input buffers were used. We must copy the output
if (output->WillAllocateBuffer())
output->PrepareBuffer (nFrames);
const AudioBufferList& outBuffer = output->GetBufferList();
const bool isOutputInterleaved = (numOutChannels > 1) && (outBuffer.mNumberBuffers == 1);
for (unsigned int chIdx = 0; chIdx < numOutChannels; ++chIdx)
if (numOutChannels > 0)
{
int mappedOutChIdx = outputLayoutMap.getReference (static_cast<int> (busIdx))[static_cast<int> (chIdx)];
// the input buffers were used. We must copy the output
if (output->WillAllocateBuffer())
output->PrepareBuffer (nFrames);
float* outData = static_cast<float*> (outBuffer.mBuffers[isOutputInterleaved ? 0 : mappedOutChIdx].mData);
const float* buffer = static_cast<float*> (channels [idx++]);
const AudioBufferList& outBuffer = output->GetBufferList();
const bool isOutputInterleaved = (numOutChannels > 1) && (outBuffer.mNumberBuffers == 1);
if (isOutputInterleaved)
for (unsigned int chIdx = 0; chIdx < numOutChannels; ++chIdx)
{
for (unsigned int i = 0; i < nFrames; ++i)
int mappedOutChIdx = outputLayoutMap.getReference (static_cast<int> (busIdx))[static_cast<int> (chIdx)];
float* outData = static_cast<float*> (outBuffer.mBuffers[isOutputInterleaved ? 0 : mappedOutChIdx].mData);
float* buffer = static_cast<float*> (channels [idx]);
if (isOutputInterleaved)
{
outData [mappedOutChIdx] = buffer[i];
outData += numOutChannels;
for (unsigned int i = 0; i < nFrames; ++i)
{
outData [mappedOutChIdx] = buffer[i];
outData += numOutChannels;
}
}
else
std::copy (buffer, buffer + nFrames, outData);
zeromem (buffer, sizeof(float) * nFrames);
idx++;
}
else
std::copy (buffer, buffer + nFrames, outData);
idx += numInChannels - numOutChannels;
}
else
{
for (unsigned int chIdx = 0; chIdx < numOutChannels; ++chIdx)
zeromem (channels [chIdx], sizeof(float) * nFrames);
}
idx += numInChannels - numOutChannels;
}
}
}