ardour/livetrax
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VST replaceProcessing () != in-place processing.

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This commit is contained in:
Robin Gareus 2015-08-05 22:14:57 +02:00
parent 093df74a9c
commit 35a9c631c1
1 changed files with 22 additions and 0 deletions
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22
libs/ardour/vst_plugin.cc
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@ -568,9 +568,19 @@ VSTPlugin::connect_and_run (BufferSet& bufs,
uint32_t index;
bool valid = false;
index = out_map.get(DataType::AUDIO, out_index++, &valid);
#ifdef VST_IN_PLACE
outs[i] = (valid)
? bufs.get_audio(index).data(offset)
: scratch_bufs.get_audio(0).data(offset);
#else
if (!valid) {
outs[i] = scratch_bufs.get_audio(0).data(offset);
} else {
// TODO if this fixes various VST issues,
// maintain a dedicated buffer, the stack may not be large enough
outs[i] = (float*)alloca (nframes * sizeof(float));
}
#endif
}
if (bufs.count().n_midi() > 0) {
@ -597,6 +607,18 @@ VSTPlugin::connect_and_run (BufferSet& bufs,
_plugin->processReplacing (_plugin, &ins[0], &outs[0], nframes);
_midi_out_buf = 0;
#ifndef VST_IN_PLACE
out_index = 0;
for (i = 0; i < (int32_t) _plugin->numOutputs; ++i) {
uint32_t index;
bool valid = false;
index = out_map.get(DataType::AUDIO, out_index++, &valid);
if (!valid) {
continue;
}
copy_vector (bufs.get_audio(index).data(offset), outs[i], nframes * sizeof(float));
}
#endif
return 0;
}