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#include "effects/lv2/lv2effectprocessor.h"
#include "engine/effects/engineeffect.h"
#include "control/controlobject.h"
#include "util/sample.h"
#include "util/defs.h"
LV2EffectProcessor::LV2EffectProcessor(EngineEffect* pEngineEffect,
EffectManifestPointer pManifest,
const LilvPlugin* plugin,
const QList<int>& audioPortIndices,
const QList<int>& controlPortIndices)
: m_pPlugin(plugin),
m_audioPortIndices(audioPortIndices),
m_controlPortIndices(controlPortIndices),
m_pEffectsManager(nullptr) {
m_inputL = new float[MAX_BUFFER_LEN];
m_inputR = new float[MAX_BUFFER_LEN];
m_outputL = new float[MAX_BUFFER_LEN];
m_outputR = new float[MAX_BUFFER_LEN];
m_params = new float[pManifest->parameters().size()];
const QList<EffectManifestParameterPointer>& effectManifestParameterList =
pManifest->parameters();
// Initialize EngineEffectParameters
for (const auto& pParam: effectManifestParameterList) {
m_parameters.append(pEngineEffect->getParameterById(pParam->id()));
}
}
LV2EffectProcessor::~LV2EffectProcessor() {
if (kEffectDebugOutput) {
qDebug() << "~LV2EffectProcessor" << this;
}
int inputChannelHandleNumber = 0;
for (auto& outputsMap : m_channelStateMatrix) {
int outputChannelHandleNumber = 0;
for (LV2EffectGroupState* pState : outputsMap) {
VERIFY_OR_DEBUG_ASSERT(pState != nullptr) {
continue;
}
if (kEffectDebugOutput) {
qDebug() << "~LV2EffectProcessor deleting LilvInstance" << pState
<< "for input ChannelHandle(" << inputChannelHandleNumber << ")"
<< "and output ChannelHandle(" << outputChannelHandleNumber << ")";
}
delete pState;
outputChannelHandleNumber++;
}
outputsMap.clear();
}
m_channelStateMatrix.clear();
delete[] m_inputL;
delete[] m_inputR;
delete[] m_outputL;
delete[] m_outputR;
delete[] m_params;
}
void LV2EffectProcessor::initialize(
const QSet<ChannelHandleAndGroup>& activeInputChannels,
EffectsManager* pEffectsManager,
const mixxx::EngineParameters& bufferParameters) {
Q_UNUSED(pEffectsManager);
Q_UNUSED(bufferParameters);
for (const ChannelHandleAndGroup& inputChannel : activeInputChannels) {
if (kEffectDebugOutput) {
qDebug() << this << "LV2EffectProcessor::initialize allocating "
"EffectStates for input" << inputChannel;
}
ChannelHandleMap<LV2EffectGroupState*> outputChannelMap;
for (const ChannelHandleAndGroup& outputChannel :
pEffectsManager->registeredOutputChannels()) {
LV2EffectGroupState* pGroupState = createGroupState(bufferParameters);
if (pGroupState) {
outputChannelMap.insert(outputChannel.handle(), pGroupState);
if (kEffectDebugOutput) {
qDebug() << this << "EffectProcessorImpl::initialize "
"registering output" << outputChannel << outputChannelMap[outputChannel.handle()];
}
}
}
m_channelStateMatrix.insert(inputChannel.handle(), outputChannelMap);
}
m_pEffectsManager = pEffectsManager;
DEBUG_ASSERT(m_pEffectsManager != nullptr);
}
void LV2EffectProcessor::process(const ChannelHandle& inputHandle,
const ChannelHandle& outputHandle,
const CSAMPLE* pInput, CSAMPLE* pOutput,
const mixxx::EngineParameters& bufferParameters,
const EffectEnableState enableState,
const GroupFeatureState& groupFeatures) {
Q_UNUSED(groupFeatures);
Q_UNUSED(enableState);
LV2EffectGroupState* pState = m_channelStateMatrix[inputHandle][outputHandle];
VERIFY_OR_DEBUG_ASSERT(pState != nullptr) {
if (kEffectDebugOutput) {
qWarning() << "LV2EffectProcessor::process could not retrieve"
"handle for input" << inputHandle
<< "and output" << outputHandle
<< "Handle should have been preallocated in the"
"main thread.";
}
pState = createGroupState(bufferParameters);
m_channelStateMatrix[inputHandle][outputHandle] = pState;
}
if (!pState) {
SampleUtil::copyWithGain(pOutput, pInput, 1.0, bufferParameters.samplesPerBuffer());
return;
}
for (int i = 0; i < m_parameters.size(); i++) {
m_params[i] = static_cast<float>(m_parameters[i]->value());
}
int j = 0;
for (SINT i = 0; i < bufferParameters.samplesPerBuffer(); i += 2) {
m_inputL[j] = pInput[i];
m_inputR[j] = pInput[i + 1];
j++;
}
lilv_instance_run(pState->lilvIinstance(), bufferParameters.framesPerBuffer());
j = 0;
for (SINT i = 0; i < bufferParameters.samplesPerBuffer(); i += 2) {
pOutput[i] = m_outputL[j];
pOutput[i + 1] = m_outputR[j];
j++;
}
}
LV2EffectGroupState* LV2EffectProcessor::createGroupState(const mixxx::EngineParameters& bufferParameters) {
LV2EffectGroupState * pState = new LV2EffectGroupState(bufferParameters, m_pPlugin);
LilvInstance* handle = pState->lilvIinstance();
if (handle) {
for (int i = 0; i < m_parameters.size(); i++) {
m_params[i] = static_cast<float>(m_parameters[i]->value());
lilv_instance_connect_port(handle, m_controlPortIndices[i], &m_params[i]);
}
// We assume the audio ports are in the following order:
// input_left, input_right, output_left, output_right
lilv_instance_connect_port(handle, m_audioPortIndices[0], m_inputL);
lilv_instance_connect_port(handle, m_audioPortIndices[1], m_inputR);
lilv_instance_connect_port(handle, m_audioPortIndices[2], m_outputL);
lilv_instance_connect_port(handle, m_audioPortIndices[3], m_outputR);
lilv_instance_activate(handle);
}
if (kEffectDebugOutput) {
qDebug() << this << "LV2EffectProcessor creating EffectState" << pState;
}
return pState;
};
EffectState* LV2EffectProcessor::createState(const mixxx::EngineParameters& bufferParameters) {
return createGroupState(bufferParameters);
};
bool LV2EffectProcessor::loadStatesForInputChannel(const ChannelHandle* inputChannel,
const EffectStatesMap* pStatesMap) {
if (kEffectDebugOutput) {
qDebug() << "LV2EffectProcessor::loadStatesForInputChannel" << this
<< "input" << *inputChannel;
}
// NOTE: ChannelHandleMap is like a map in that it associates an
// object with a ChannelHandle key, but it actually backed by a
// QVarLengthArray, not a QMap. So it is okay that
// m_channelStateMatrix may be accessed concurrently in the main
// thread in deleteStatesForInputChannel.
// Can't directly cast a ChannelHandleMap from containing the base
// EffectState* type to EffectSpecificState* type, so iterate through
// pStatesMap to build a new ChannelHandleMap with
// dynamic_cast'ed states.
ChannelHandleMap<LV2EffectGroupState*>& effectSpecificStatesMap =
m_channelStateMatrix[*inputChannel];
// deleteStatesForInputChannel should have been called before a new
// map of EffectStates was sent to this function, or this is the first
// time states are being loaded for this input channel, so
// effectSpecificStatesMap should be empty and this loop should
// not go through any iterations.
for (LV2EffectGroupState* pState : effectSpecificStatesMap) {
VERIFY_OR_DEBUG_ASSERT(pState == nullptr) {
delete pState;
qDebug() << "for effectSpecificStatesMap";
}
}
for (const ChannelHandleAndGroup& outputChannel :
m_pEffectsManager->registeredOutputChannels()) {
if (kEffectDebugOutput) {
qDebug() << "LV2EffectProcessor::loadStatesForInputChannel"
<< this << "output" << outputChannel;
}
auto* pState = dynamic_cast<LV2EffectGroupState*>(
pStatesMap->at(outputChannel.handle()));
VERIFY_OR_DEBUG_ASSERT(pState != nullptr) {
return false;
}
effectSpecificStatesMap.insert(outputChannel.handle(), pState);
}
return true;
}
// Called from main thread for garbage collection after the last audio thread
// callback executes process() with EffectEnableState::Disabling
void LV2EffectProcessor::deleteStatesForInputChannel(const ChannelHandle* inputChannel) {
if (kEffectDebugOutput) {
qDebug() << "LV2EffectProcessor::deleteStatesForInputChannel"
<< this << *inputChannel;
}
// NOTE: ChannelHandleMap is like a map in that it associates an
// object with a ChannelHandle key, but it actually backed by a
// QVarLengthArray, not a QMap. So it is okay that
// m_channelStateMatrix may be accessed concurrently in the audio
// engine thread in loadStatesForInputChannel.
ChannelHandleMap<LV2EffectGroupState*>& stateMap =
m_channelStateMatrix[*inputChannel];
for (LV2EffectGroupState* pState : stateMap) {
VERIFY_OR_DEBUG_ASSERT(pState != nullptr) {
continue;
}
if (kEffectDebugOutput) {
qDebug() << "LV2EffectProcessor::deleteStatesForInputChannel"
<< this << "deleting state" << pState;
}
delete pState;
qDebug() <<
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