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Fix logic around inplace processing audio buffer copy

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Signed-off-by: falkTX <falktx@falktx.com>
This commit is contained in:
falkTX 2022-01-30 15:53:34 +00:00
parent 8276f86680
commit de63835867
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GPG key ID: CDBAA37ABC74FBA0
1 changed files with 17 additions and 4 deletions
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21
src/CardinalPlugin.cpp
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@ -388,7 +388,13 @@ class CardinalPlugin : public CardinalBasePlugin
{
SharedResourcePointer<Initializer> fInitializer;
#if DISTRHO_PLUGIN_NUM_INPUTS != 0
/* If host audio ins == outs we can get issues for inplace processing.
* So allocate a float array that will serve as safe copy for those cases.
*/
float** fAudioBufferCopy;
#endif
std::string fAutosavePath;
uint64_t fPreviousFrame;
String fWindowSize;
@ -402,7 +408,9 @@ public:
CardinalPlugin()
: CardinalBasePlugin(kModuleParameters + kWindowParameterCount, 0, kCardinalStateCount),
fInitializer(this),
#if DISTRHO_PLUGIN_NUM_INPUTS != 0
fAudioBufferCopy(nullptr),
#endif
fPreviousFrame(0)
{
#ifndef HEADLESS
@ -802,7 +810,7 @@ protected:
#if DISTRHO_PLUGIN_NUM_INPUTS != 0
const uint32_t bufferSize = getBufferSize();
fAudioBufferCopy = new float*[DISTRHO_PLUGIN_NUM_INPUTS];
for (int i=0; i<DISTRHO_PLUGIN_NUM_OUTPUTS; ++i)
for (int i=0; i<DISTRHO_PLUGIN_NUM_INPUTS; ++i)
fAudioBufferCopy[i] = new float[bufferSize];
#endif
@ -811,13 +819,15 @@ protected:
void deactivate() override
{
#if DISTRHO_PLUGIN_NUM_INPUTS != 0
if (fAudioBufferCopy != nullptr)
{
for (int i=0; i<DISTRHO_PLUGIN_NUM_OUTPUTS; ++i)
for (int i=0; i<DISTRHO_PLUGIN_NUM_INPUTS; ++i)
delete[] fAudioBufferCopy[i];
delete[] fAudioBufferCopy;
fAudioBufferCopy = nullptr;
}
#endif
}
void run(const float** const inputs, float** const outputs, const uint32_t frames,
@ -865,10 +875,13 @@ protected:
// inline processing, use a safe copy
else
{
for (int i=0; i<DISTRHO_PLUGIN_NUM_OUTPUTS; ++i)
#if DISTRHO_PLUGIN_NUM_INPUTS != 0
for (int i=0; i<DISTRHO_PLUGIN_NUM_INPUTS; ++i)
std::memcpy(fAudioBufferCopy[i], inputs[i], sizeof(float)*frames);
context->dataIns = fAudioBufferCopy;
#else
context->dataIns = nullptr;
#endif
context->dataOuts = outputs;
}