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💥 Reimplement VST3 audio processing

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In the same way as 50c25c1cf0 did it for
VST2 plugins. Input and output audio data is now stored in a shared
memory buffer instead of being sent over the sockets. This reduces the
bridging overhead to a minimum since copying data was the most expensive
operation we were doing and we now only need to copy the entire buffer
once per processing cycle.
This commit is contained in:
Robbert van der Helm
2021-06-11 13:56:42 +02:00
parent a7d8063db4
commit dec19dc12a
8 changed files with 444 additions and 363 deletions
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src/common/logging/vst3.cpp
+34 -7
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@@ -1002,12 +1002,24 @@ bool Vst3Logger::log_request(
// this
const YaAudioProcessor::Process& request = request_wrapper.get();
// TODO: The channel counts are now capped at what the plugin
// supports (based on the audio buffers we set up during
// `IAudioProcessor::setupProcessing()`). Some hosts may send
// more buffers, but we don't reflect that in the output right
// now.
std::ostringstream num_input_channels;
num_input_channels << "[";
for (bool is_first = true;
const auto& buffers : request.data.inputs) {
num_input_channels << (is_first ? "" : ", ")
<< buffers.num_channels();
<< buffers.numChannels;
if (buffers.silenceFlags > 0 &&
buffers.silenceFlags <
(static_cast<uint64>(1)
<< static_cast<uint64>(buffers.numChannels))) {
num_input_channels << " (silence)" << std::endl;
}
is_first = false;
}
num_input_channels << "]";
@@ -1015,8 +1027,16 @@ bool Vst3Logger::log_request(
std::ostringstream num_output_channels;
num_output_channels << "[";
for (bool is_first = true;
const auto& num_channels : request.data.outputs_num_channels) {
num_output_channels << (is_first ? "" : ", ") << num_channels;
const auto& buffers : request.data.outputs) {
num_output_channels << (is_first ? "" : ", ")
<< buffers.numChannels;
if (buffers.silenceFlags > 0 &&
buffers.silenceFlags <
(static_cast<uint64>(1)
<< static_cast<uint64>(buffers.numChannels))) {
num_output_channels << " (silence)" << std::endl;
}
is_first = false;
}
num_output_channels << "]";
@@ -1030,7 +1050,7 @@ bool Vst3Logger::log_request(
<< ", input_parameter_changes = <IParameterChanges* for "
<< request.data.input_parameter_changes.num_parameters()
<< " parameters>, output_parameter_changes = "
<< (request.data.output_parameter_changes_supported
<< (request.data.output_parameter_changes
? "<IParameterChanges*>"
: "nullptr")
<< ", input_events = ";
@@ -1042,8 +1062,8 @@ bool Vst3Logger::log_request(
message << "<nullptr>";
}
message << ", output_events = "
<< (request.data.output_events_supported ? "<IEventList*>"
: "<nullptr>")
<< (request.data.output_events ? "<IEventList*>"
: "<nullptr>")
<< ", process_context = "
<< (request.data.process_context ? "<ProcessContext*>"
: "<nullptr>")
@@ -1793,7 +1813,14 @@ void Vst3Logger::log_response(
for (bool is_first = true;
const auto& buffers : *response.output_data.outputs) {
num_output_channels << (is_first ? "" : ", ")
<< buffers.num_channels();
<< buffers.numChannels;
if (buffers.silenceFlags > 0 &&
buffers.silenceFlags <
(static_cast<uint64>(1)
<< static_cast<uint64>(buffers.numChannels))) {
num_output_channels << " (silence)" << std::endl;
}
is_first = false;
}
num_output_channels << "]";