/* * Carla LADSPA Plugin * Copyright (C) 2011-2014 Filipe Coelho * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * For a full copy of the GNU General Public License see the doc/GPL.txt file. */ #include "CarlaPluginInternal.hpp" #include "CarlaEngine.hpp" #ifdef WANT_LADSPA #include "CarlaLadspaUtils.hpp" #include "CarlaMathUtils.hpp" CARLA_BACKEND_START_NAMESPACE #if 0 } #endif class LadspaPlugin : public CarlaPlugin { public: LadspaPlugin(CarlaEngine* const engine, const unsigned int id) : CarlaPlugin(engine, id), fHandle(nullptr), fHandle2(nullptr), fDescriptor(nullptr), fRdfDescriptor(nullptr), fAudioInBuffers(nullptr), fAudioOutBuffers(nullptr), fParamBuffers(nullptr) { carla_debug("LadspaPlugin::LadspaPlugin(%p, %i)", engine, id); } ~LadspaPlugin() override { carla_debug("LadspaPlugin::~LadspaPlugin()"); pData->singleMutex.lock(); pData->masterMutex.lock(); if (pData->client != nullptr && pData->client->isActive()) pData->client->deactivate(); if (pData->active) { deactivate(); pData->active = false; } if (fDescriptor != nullptr) { if (fDescriptor->cleanup != nullptr) { if (fHandle != nullptr) fDescriptor->cleanup(fHandle); if (fHandle2 != nullptr) fDescriptor->cleanup(fHandle2); } fHandle = nullptr; fHandle2 = nullptr; fDescriptor = nullptr; } if (fRdfDescriptor != nullptr) { delete fRdfDescriptor; fRdfDescriptor = nullptr; } clearBuffers(); } // ------------------------------------------------------------------- // Information (base) PluginType getType() const noexcept override { return PLUGIN_LADSPA; } PluginCategory getCategory() const noexcept override { if (fRdfDescriptor != nullptr) { const LADSPA_PluginType category(fRdfDescriptor->Type); // Specific Types if (category & (LADSPA_PLUGIN_DELAY|LADSPA_PLUGIN_REVERB)) return PLUGIN_CATEGORY_DELAY; if (category & (LADSPA_PLUGIN_PHASER|LADSPA_PLUGIN_FLANGER|LADSPA_PLUGIN_CHORUS)) return PLUGIN_CATEGORY_MODULATOR; if (category & (LADSPA_PLUGIN_AMPLIFIER)) return PLUGIN_CATEGORY_DYNAMICS; if (category & (LADSPA_PLUGIN_UTILITY|LADSPA_PLUGIN_SPECTRAL|LADSPA_PLUGIN_FREQUENCY_METER)) return PLUGIN_CATEGORY_UTILITY; // Pre-set LADSPA Types if (LADSPA_IS_PLUGIN_DYNAMICS(category)) return PLUGIN_CATEGORY_DYNAMICS; if (LADSPA_IS_PLUGIN_AMPLITUDE(category)) return PLUGIN_CATEGORY_MODULATOR; if (LADSPA_IS_PLUGIN_EQ(category)) return PLUGIN_CATEGORY_EQ; if (LADSPA_IS_PLUGIN_FILTER(category)) return PLUGIN_CATEGORY_FILTER; if (LADSPA_IS_PLUGIN_FREQUENCY(category)) return PLUGIN_CATEGORY_UTILITY; if (LADSPA_IS_PLUGIN_SIMULATOR(category)) return PLUGIN_CATEGORY_OTHER; if (LADSPA_IS_PLUGIN_TIME(category)) return PLUGIN_CATEGORY_DELAY; if (LADSPA_IS_PLUGIN_GENERATOR(category)) return PLUGIN_CATEGORY_SYNTH; } return CarlaPlugin::getCategory(); } long getUniqueId() const noexcept override { CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr, 0); return static_cast(fDescriptor->UniqueID); } // ------------------------------------------------------------------- // Information (count) uint32_t getParameterScalePointCount(const uint32_t parameterId) const noexcept override { CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, 0); const int32_t rindex(pData->param.data[parameterId].rindex); if (fRdfDescriptor != nullptr && rindex < static_cast(fRdfDescriptor->PortCount)) { const LADSPA_RDF_Port* const port(&fRdfDescriptor->Ports[rindex]); return static_cast(port->ScalePointCount); } return 0; } // ------------------------------------------------------------------- // Information (current data) // nothing // ------------------------------------------------------------------- // Information (per-plugin data) unsigned int getOptionsAvailable() const noexcept override { #ifdef __USE_GNU const bool isDssiVst(strcasestr(pData->filename, "dssi-vst")); #else const bool isDssiVst(std::strstr(pData->filename, "dssi-vst")); #endif unsigned int options = 0x0; if (! isDssiVst) { options |= PLUGIN_OPTION_FIXED_BUFFERS; if (pData->engine->getProccessMode() != ENGINE_PROCESS_MODE_CONTINUOUS_RACK) { if (pData->options & PLUGIN_OPTION_FORCE_STEREO) options |= PLUGIN_OPTION_FORCE_STEREO; else if (pData->audioIn.count <= 1 && pData->audioOut.count <= 1 && (pData->audioIn.count != 0 || pData->audioOut.count != 0)) options |= PLUGIN_OPTION_FORCE_STEREO; } } return options; } float getParameterValue(const uint32_t parameterId) const noexcept override { CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr, 0.0f); CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, 0.0f); return fParamBuffers[parameterId]; } float getParameterScalePointValue(const uint32_t parameterId, const uint32_t scalePointId) const noexcept override { CARLA_SAFE_ASSERT_RETURN(fRdfDescriptor != nullptr, 0.0f); CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, 0.0f); CARLA_SAFE_ASSERT_RETURN(scalePointId < getParameterScalePointCount(parameterId), 0.0f); const int32_t rindex(pData->param.data[parameterId].rindex); if (rindex < static_cast(fRdfDescriptor->PortCount)) { const LADSPA_RDF_Port* const port(&fRdfDescriptor->Ports[rindex]); if (scalePointId < port->ScalePointCount) { const LADSPA_RDF_ScalePoint* const scalePoint(&port->ScalePoints[scalePointId]); return scalePoint->Value; } } return 0.0f; } void getLabel(char* const strBuf) const noexcept override { CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,); if (fDescriptor->Label != nullptr) std::strncpy(strBuf, fDescriptor->Label, STR_MAX); else CarlaPlugin::getLabel(strBuf); } void getMaker(char* const strBuf) const noexcept override { CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,); if (fRdfDescriptor != nullptr && fRdfDescriptor->Creator != nullptr) std::strncpy(strBuf, fRdfDescriptor->Creator, STR_MAX); else if (fDescriptor->Maker != nullptr) std::strncpy(strBuf, fDescriptor->Maker, STR_MAX); else CarlaPlugin::getMaker(strBuf); } void getCopyright(char* const strBuf) const noexcept override { CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,); if (fDescriptor->Copyright != nullptr) std::strncpy(strBuf, fDescriptor->Copyright, STR_MAX); else CarlaPlugin::getCopyright(strBuf); } void getRealName(char* const strBuf) const noexcept override { CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,); if (fRdfDescriptor != nullptr && fRdfDescriptor->Title != nullptr) std::strncpy(strBuf, fRdfDescriptor->Title, STR_MAX); else if (fDescriptor->Name != nullptr) std::strncpy(strBuf, fDescriptor->Name, STR_MAX); else CarlaPlugin::getRealName(strBuf); } void getParameterName(const uint32_t parameterId, char* const strBuf) const noexcept override { CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,); CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,); const int32_t rindex(pData->param.data[parameterId].rindex); if (rindex < static_cast(fDescriptor->PortCount)) std::strncpy(strBuf, fDescriptor->PortNames[rindex], STR_MAX); else CarlaPlugin::getParameterName(parameterId, strBuf); } void getParameterSymbol(const uint32_t parameterId, char* const strBuf) const noexcept override { CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,); const int32_t rindex(pData->param.data[parameterId].rindex); if (fRdfDescriptor != nullptr && rindex < static_cast(fRdfDescriptor->PortCount)) { const LADSPA_RDF_Port* const port(&fRdfDescriptor->Ports[rindex]); if (LADSPA_PORT_HAS_LABEL(port->Hints) && port->Label != nullptr) { std::strncpy(strBuf, port->Label, STR_MAX); return; } } CarlaPlugin::getParameterSymbol(parameterId, strBuf); } void getParameterUnit(const uint32_t parameterId, char* const strBuf) const noexcept override { CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,); const int32_t rindex(pData->param.data[parameterId].rindex); if (fRdfDescriptor != nullptr && rindex < static_cast(fRdfDescriptor->PortCount)) { const LADSPA_RDF_Port* const port(&fRdfDescriptor->Ports[rindex]); if (LADSPA_PORT_HAS_UNIT(port->Hints)) { switch (port->Unit) { case LADSPA_UNIT_DB: std::strncpy(strBuf, "dB", STR_MAX); return; case LADSPA_UNIT_COEF: std::strncpy(strBuf, "(coef)", STR_MAX); return; case LADSPA_UNIT_HZ: std::strncpy(strBuf, "Hz", STR_MAX); return; case LADSPA_UNIT_S: std::strncpy(strBuf, "s", STR_MAX); return; case LADSPA_UNIT_MS: std::strncpy(strBuf, "ms", STR_MAX); return; case LADSPA_UNIT_MIN: std::strncpy(strBuf, "min", STR_MAX); return; } } } CarlaPlugin::getParameterUnit(parameterId, strBuf); } void getParameterScalePointLabel(const uint32_t parameterId, const uint32_t scalePointId, char* const strBuf) const noexcept override { CARLA_SAFE_ASSERT_RETURN(fRdfDescriptor != nullptr,); CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,); CARLA_SAFE_ASSERT_RETURN(scalePointId < getParameterScalePointCount(parameterId),); const int32_t rindex(pData->param.data[parameterId].rindex); if (rindex < static_cast(fRdfDescriptor->PortCount)) { const LADSPA_RDF_Port* const port(&fRdfDescriptor->Ports[rindex]); if (scalePointId < port->ScalePointCount) { const LADSPA_RDF_ScalePoint* const scalePoint(&port->ScalePoints[scalePointId]); if (scalePoint->Label != nullptr) { std::strncpy(strBuf, scalePoint->Label, STR_MAX); return; } } } CarlaPlugin::getParameterScalePointLabel(parameterId, scalePointId, strBuf); } // ------------------------------------------------------------------- // Set data (state) // nothing // ------------------------------------------------------------------- // Set data (internal stuff) // nothing // ------------------------------------------------------------------- // Set data (plugin-specific stuff) void setParameterValue(const uint32_t parameterId, const float value, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override { CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr,); CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,); const float fixedValue(pData->param.getFixedValue(parameterId, value)); fParamBuffers[parameterId] = fixedValue; CarlaPlugin::setParameterValue(parameterId, fixedValue, sendGui, sendOsc, sendCallback); } // ------------------------------------------------------------------- // Set ui stuff // nothing // ------------------------------------------------------------------- // Plugin state void reload() override { CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr,); CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,); CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,); carla_debug("LadspaPlugin::reload() - start"); const EngineProcessMode processMode(pData->engine->getProccessMode()); // Safely disable plugin for reload const ScopedDisabler sd(this); if (pData->active) deactivate(); clearBuffers(); const float sampleRate(static_cast(pData->engine->getSampleRate())); const uint32_t portCount(static_cast(fDescriptor->PortCount)); uint32_t aIns, aOuts, params; aIns = aOuts = params = 0; bool forcedStereoIn, forcedStereoOut; forcedStereoIn = forcedStereoOut = false; bool needsCtrlIn, needsCtrlOut; needsCtrlIn = needsCtrlOut = false; if (portCount > 0) { CARLA_ASSERT(fDescriptor->PortDescriptors != nullptr); CARLA_ASSERT(fDescriptor->PortRangeHints != nullptr); CARLA_ASSERT(fDescriptor->PortNames != nullptr); for (uint32_t i=0; i < portCount; ++i) { const LADSPA_PortDescriptor portType = fDescriptor->PortDescriptors[i]; if (LADSPA_IS_PORT_AUDIO(portType)) { if (LADSPA_IS_PORT_INPUT(portType)) aIns += 1; else if (LADSPA_IS_PORT_OUTPUT(portType)) aOuts += 1; } else if (LADSPA_IS_PORT_CONTROL(portType)) params += 1; } } if ((pData->options & PLUGIN_OPTION_FORCE_STEREO) != 0 && (aIns == 1 || aOuts == 1)) { if (fHandle2 == nullptr) fHandle2 = fDescriptor->instantiate(fDescriptor, (unsigned long)sampleRate); if (fHandle2 != nullptr) { if (aIns == 1) { aIns = 2; forcedStereoIn = true; } if (aOuts == 1) { aOuts = 2; forcedStereoOut = true; } } } if (aIns > 0) { pData->audioIn.createNew(aIns); fAudioInBuffers = new float*[aIns]; for (uint32_t i=0; i < aIns; ++i) fAudioInBuffers[i] = nullptr; } if (aOuts > 0) { pData->audioOut.createNew(aOuts); fAudioOutBuffers = new float*[aOuts]; needsCtrlIn = true; for (uint32_t i=0; i < aOuts; ++i) fAudioOutBuffers[i] = nullptr; } if (params > 0) { pData->param.createNew(params, true); fParamBuffers = new float[params]; FLOAT_CLEAR(fParamBuffers, params); } const uint portNameSize(pData->engine->getMaxPortNameSize()); CarlaString portName; for (uint32_t i=0, iAudioIn=0, iAudioOut=0, iCtrl=0; i < portCount; ++i) { const LADSPA_PortDescriptor portType = fDescriptor->PortDescriptors[i]; const LADSPA_PortRangeHint portRangeHints = fDescriptor->PortRangeHints[i]; const bool hasPortRDF = (fRdfDescriptor != nullptr && i < fRdfDescriptor->PortCount); CARLA_ASSERT(fDescriptor->PortNames[i] != nullptr); if (LADSPA_IS_PORT_AUDIO(portType)) { portName.clear(); if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT) { portName = pData->name; portName += ":"; } portName += fDescriptor->PortNames[i]; portName.truncate(portNameSize); if (LADSPA_IS_PORT_INPUT(portType)) { uint32_t j = iAudioIn++; pData->audioIn.ports[j].port = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true); pData->audioIn.ports[j].rindex = i; if (forcedStereoIn) { portName += "_2"; pData->audioIn.ports[1].port = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true); pData->audioIn.ports[1].rindex = i; } } else if (LADSPA_IS_PORT_OUTPUT(portType)) { uint32_t j = iAudioOut++; pData->audioOut.ports[j].port = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false); pData->audioOut.ports[j].rindex = i; if (forcedStereoOut) { portName += "_2"; pData->audioOut.ports[1].port = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false); pData->audioOut.ports[1].rindex = i; } } else carla_stderr2("WARNING - Got a broken Port (Audio, but not input or output)"); } else if (LADSPA_IS_PORT_CONTROL(portType)) { uint32_t j = iCtrl++; pData->param.data[j].hints = 0x0; pData->param.data[j].index = static_cast(j); pData->param.data[j].rindex = static_cast(i); pData->param.data[j].midiCC = -1; pData->param.data[j].midiChannel = 0; pData->param.special[j] = PARAMETER_SPECIAL_NULL; float min, max, def, step, stepSmall, stepLarge; // min value if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor)) min = portRangeHints.LowerBound; else min = 0.0f; // max value if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor)) max = portRangeHints.UpperBound; else max = 1.0f; if (min > max) max = min; if (max - min == 0.0f) { carla_stderr2("WARNING - Broken plugin parameter '%s': max - min == 0.0f", fDescriptor->PortNames[i]); max = min + 0.1f; } // default value if (hasPortRDF && LADSPA_PORT_HAS_DEFAULT(fRdfDescriptor->Ports[i].Hints)) def = fRdfDescriptor->Ports[i].Default; else def = get_default_ladspa_port_value(portRangeHints.HintDescriptor, min, max); if (def < min) def = min; else if (def > max) def = max; if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor)) { min *= sampleRate; max *= sampleRate; def *= sampleRate; pData->param.data[j].hints |= PARAMETER_USES_SAMPLERATE; } if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor)) { step = max - min; stepSmall = step; stepLarge = step; pData->param.data[j].hints |= PARAMETER_IS_BOOLEAN; } else if (LADSPA_IS_HINT_INTEGER(portRangeHints.HintDescriptor)) { step = 1.0f; stepSmall = 1.0f; stepLarge = 10.0f; pData->param.data[j].hints |= PARAMETER_IS_INTEGER; } else { float range = max - min; step = range/100.0f; stepSmall = range/1000.0f; stepLarge = range/10.0f; } if (LADSPA_IS_PORT_INPUT(portType)) { pData->param.data[j].type = PARAMETER_INPUT; pData->param.data[j].hints |= PARAMETER_IS_ENABLED; pData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE; needsCtrlIn = true; } else if (LADSPA_IS_PORT_OUTPUT(portType)) { pData->param.data[j].type = PARAMETER_OUTPUT; if (std::strcmp(fDescriptor->PortNames[i], "latency") == 0 || std::strcmp(fDescriptor->PortNames[i], "_latency") == 0) { min = 0.0f; max = sampleRate; def = 0.0f; step = 1.0f; stepSmall = 1.0f; stepLarge = 1.0f; pData->param.special[j] = PARAMETER_SPECIAL_LATENCY; } else { pData->param.data[j].hints |= PARAMETER_IS_ENABLED; pData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE; needsCtrlOut = true; } } else { pData->param.data[j].type = PARAMETER_UNKNOWN; carla_stderr2("WARNING - Got a broken Port (Control, but not input or output)"); } // extra parameter hints if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor)) pData->param.data[j].hints |= PARAMETER_IS_LOGARITHMIC; // check for scalepoints, require at least 2 to make it useful if (hasPortRDF && fRdfDescriptor->Ports[i].ScalePointCount > 1) pData->param.data[j].hints |= PARAMETER_USES_SCALEPOINTS; pData->param.ranges[j].min = min; pData->param.ranges[j].max = max; pData->param.ranges[j].def = def; pData->param.ranges[j].step = step; pData->param.ranges[j].stepSmall = stepSmall; pData->param.ranges[j].stepLarge = stepLarge; // Start parameters in their default values fParamBuffers[j] = def; fDescriptor->connect_port(fHandle, i, &fParamBuffers[j]); if (fHandle2 != nullptr) fDescriptor->connect_port(fHandle2, i, &fParamBuffers[j]); } else { // Not Audio or Control carla_stderr2("ERROR - Got a broken Port (neither Audio or Control)"); fDescriptor->connect_port(fHandle, i, nullptr); if (fHandle2 != nullptr) fDescriptor->connect_port(fHandle2, i, nullptr); } } if (needsCtrlIn) { portName.clear(); if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT) { portName = pData->name; portName += ":"; } portName += "events-in"; portName.truncate(portNameSize); pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true); } if (needsCtrlOut) { portName.clear(); if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT) { portName = pData->name; portName += ":"; } portName += "events-out"; portName.truncate(portNameSize); pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false); } if (forcedStereoIn || forcedStereoOut) pData->options |= PLUGIN_OPTION_FORCE_STEREO; else pData->options &= ~PLUGIN_OPTION_FORCE_STEREO; // plugin hints pData->hints = 0x0; if (LADSPA_IS_HARD_RT_CAPABLE(fDescriptor->Properties)) pData->hints |= PLUGIN_IS_RTSAFE; if (aOuts > 0 && (aIns == aOuts || aIns == 1)) pData->hints |= PLUGIN_CAN_DRYWET; if (aOuts > 0) pData->hints |= PLUGIN_CAN_VOLUME; if (aOuts >= 2 && aOuts % 2 == 0) pData->hints |= PLUGIN_CAN_BALANCE; // extra plugin hints pData->extraHints = 0x0; if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0)) pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK; // check latency if (pData->hints & PLUGIN_CAN_DRYWET) { for (uint32_t i=0; i < pData->param.count; ++i) { if (pData->param.special[i] != PARAMETER_SPECIAL_LATENCY) continue; // we need to pre-run the plugin so it can update its latency control-port float tmpIn[aIns][2]; float tmpOut[aOuts][2]; for (uint32_t j=0; j < aIns; ++j) { tmpIn[j][0] = 0.0f; tmpIn[j][1] = 0.0f; fDescriptor->connect_port(fHandle, pData->audioIn.ports[j].rindex, tmpIn[j]); } for (uint32_t j=0; j < aOuts; ++j) { tmpOut[j][0] = 0.0f; tmpOut[j][1] = 0.0f; fDescriptor->connect_port(fHandle, pData->audioOut.ports[j].rindex, tmpOut[j]); } if (fDescriptor->activate != nullptr) fDescriptor->activate(fHandle); fDescriptor->run(fHandle, 2); if (fDescriptor->deactivate != nullptr) fDescriptor->deactivate(fHandle); const uint32_t latency = (uint32_t)fParamBuffers[i]; if (pData->latency != latency) { pData->latency = latency; pData->client->setLatency(latency); pData->recreateLatencyBuffers(); } break; } } bufferSizeChanged(pData->engine->getBufferSize()); if (pData->active) activate(); carla_debug("LadspaPlugin::reload() - end"); } // ------------------------------------------------------------------- // Plugin processing void activate() noexcept override { CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,); CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,); if (fDescriptor->activate != nullptr) { try { fDescriptor->activate(fHandle); } catch(...) {} if (fHandle2 != nullptr) { try { fDescriptor->activate(fHandle2); } catch(...) {} } } } void deactivate() noexcept override { CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,); CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,); if (fDescriptor->deactivate != nullptr) { try { fDescriptor->deactivate(fHandle); } catch(...) {} if (fHandle2 != nullptr) { try { fDescriptor->deactivate(fHandle2); } catch(...) {} } } } void process(float** const inBuffer, float** const outBuffer, const uint32_t frames) override { // -------------------------------------------------------------------------------------------------------- // Check if active if (! pData->active) { // disable any output sound for (uint32_t i=0; i < pData->audioOut.count; ++i) FLOAT_CLEAR(outBuffer[i], frames); return; } // -------------------------------------------------------------------------------------------------------- // Check if needs reset if (pData->needsReset) { if (pData->latency > 0) { for (uint32_t i=0; i < pData->audioIn.count; ++i) FLOAT_CLEAR(pData->latencyBuffers[i], pData->latency); } pData->needsReset = false; } // -------------------------------------------------------------------------------------------------------- // Event Input and Processing if (pData->event.portIn != nullptr) { // ---------------------------------------------------------------------------------------------------- // Event Input (System) bool isSampleAccurate = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0; uint32_t numEvents = pData->event.portIn->getEventCount(); uint32_t timeOffset = 0; for (uint32_t i=0; i < numEvents; ++i) { const EngineEvent& event(pData->event.portIn->getEvent(i)); if (event.time >= frames) continue; CARLA_ASSERT_INT2(event.time >= timeOffset, event.time, timeOffset); if (isSampleAccurate && event.time > timeOffset) { if (processSingle(inBuffer, outBuffer, event.time - timeOffset, timeOffset)) timeOffset = event.time; } switch (event.type) { case kEngineEventTypeNull: break; case kEngineEventTypeControl: { const EngineControlEvent& ctrlEvent(event.ctrl); switch (ctrlEvent.type) { case kEngineControlEventTypeNull: break; case kEngineControlEventTypeParameter: { #ifndef BUILD_BRIDGE // Control backend stuff if (event.channel == pData->ctrlChannel) { float value; if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0) { value = ctrlEvent.value; setDryWet(value, false, false); pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value); break; } if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0) { value = ctrlEvent.value*127.0f/100.0f; setVolume(value, false, false); pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value); break; } if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0) { float left, right; value = ctrlEvent.value/0.5f - 1.0f; if (value < 0.0f) { left = -1.0f; right = (value*2.0f)+1.0f; } else if (value > 0.0f) { left = (value*2.0f)-1.0f; right = 1.0f; } else { left = -1.0f; right = 1.0f; } setBalanceLeft(left, false, false); setBalanceRight(right, false, false); pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left); pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right); break; } } #endif // Control plugin parameters for (uint32_t k=0; k < pData->param.count; ++k) { if (pData->param.data[k].midiChannel != event.channel) continue; if (pData->param.data[k].midiCC != ctrlEvent.param) continue; if (pData->param.data[k].type != PARAMETER_INPUT) continue; if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0) continue; float value; if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN) { value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max; } else { value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value); if (pData->param.data[k].hints & PARAMETER_IS_INTEGER) value = std::rint(value); } setParameterValue(k, value, false, false, false); pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast(k), 0, value); break; } break; } // case kEngineControlEventTypeParameter case kEngineControlEventTypeMidiBank: case kEngineControlEventTypeMidiProgram: case kEngineControlEventTypeAllSoundOff: case kEngineControlEventTypeAllNotesOff: break; } // switch (ctrlEvent.type) break; } // case kEngineEventTypeControl case kEngineEventTypeMidi: break; } // switch (event.type) } pData->postRtEvents.trySplice(); if (frames > timeOffset) processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset); } // End of Event Input and Processing // -------------------------------------------------------------------------------------------------------- // Plugin processing (no events) else { processSingle(inBuffer, outBuffer, frames, 0); } // End of Plugin processing (no events) CARLA_PROCESS_CONTINUE_CHECK; // -------------------------------------------------------------------------------------------------------- // Control Output if (pData->event.portOut != nullptr) { uint8_t channel; uint16_t param; float value; for (uint32_t k=0; k < pData->param.count; ++k) { if (pData->param.data[k].type != PARAMETER_OUTPUT) continue; pData->param.ranges[k].fixValue(fParamBuffers[k]); if (pData->param.data[k].midiCC > 0) { channel = pData->param.data[k].midiChannel; param = static_cast(pData->param.data[k].midiCC); value = pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]); pData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value); } } } // End of Control Output } bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset) { CARLA_SAFE_ASSERT_RETURN(frames > 0, false); if (pData->audioIn.count > 0) { CARLA_SAFE_ASSERT_RETURN(inBuffer != nullptr, false); } if (pData->audioOut.count > 0) { CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false); } // -------------------------------------------------------------------------------------------------------- // Try lock, silence otherwise if (pData->engine->isOffline()) { pData->singleMutex.lock(); } else if (! pData->singleMutex.tryLock()) { for (uint32_t i=0; i < pData->audioOut.count; ++i) { for (uint32_t k=0; k < frames; ++k) outBuffer[i][k+timeOffset] = 0.0f; } return false; } // -------------------------------------------------------------------------------------------------------- // Reset audio buffers for (uint32_t i=0; i < pData->audioIn.count; ++i) FLOAT_COPY(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames); for (uint32_t i=0; i < pData->audioOut.count; ++i) FLOAT_CLEAR(fAudioOutBuffers[i], frames); // -------------------------------------------------------------------------------------------------------- // Run plugin fDescriptor->run(fHandle, frames); if (fHandle2 != nullptr) fDescriptor->run(fHandle2, frames); #ifndef BUILD_BRIDGE // -------------------------------------------------------------------------------------------------------- // Post-processing (dry/wet, volume and balance) { const bool doDryWet = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && pData->postProc.dryWet != 1.0f; const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && (pData->postProc.balanceLeft != -1.0f || pData->postProc.balanceRight != 1.0f); bool isPair; float bufValue, oldBufLeft[doBalance ? frames : 1]; for (uint32_t i=0; i < pData->audioOut.count; ++i) { // Dry/Wet if (doDryWet) { for (uint32_t k=0; k < frames; ++k) { // TODO //if (k < pData->latency && pData->latency < frames) // bufValue = (pData->audioIn.count == 1) ? pData->latencyBuffers[0][k] : pData->latencyBuffers[i][k]; //else // bufValue = (pData->audioIn.count == 1) ? inBuffer[0][k-m_latency] : inBuffer[i][k-m_latency]; bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k]; fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet)); } } // Balance if (doBalance) { isPair = (i % 2 == 0); if (isPair) { CARLA_ASSERT(i+1 < pData->audioOut.count); FLOAT_COPY(oldBufLeft, fAudioOutBuffers[i], frames); } float balRangeL = (pData->postProc.balanceLeft + 1.0f)/2.0f; float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f; for (uint32_t k=0; k < frames; ++k) { if (isPair) { // left fAudioOutBuffers[i][k] = oldBufLeft[k] * (1.0f - balRangeL); fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR); } else { // right fAudioOutBuffers[i][k] = fAudioOutBuffers[i][k] * balRangeR; fAudioOutBuffers[i][k] += oldBufLeft[k] * balRangeL; } } } // Volume (and buffer copy) { for (uint32_t k=0; k < frames; ++k) outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume; } } #if 0 // Latency, save values for next callback, TODO if (pData->latency > 0 && pData->latency < frames) { for (i=0; i < pData->audioIn.count; ++i) FLOAT_COPY(pData->latencyBuffers[i], inBuffer[i] + (frames - pData->latency), pData->latency); } #endif } // End of Post-processing #else // BUILD_BRIDGE for (uint32_t i=0; i < pData->audioOut.count; ++i) { for (uint32_t k=0; k < frames; ++k) outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k]; } #endif // -------------------------------------------------------------------------------------------------------- pData->singleMutex.unlock(); return true; } void bufferSizeChanged(const uint32_t newBufferSize) override { CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize); carla_debug("LadspaPlugin::bufferSizeChanged(%i) - start", newBufferSize); for (uint32_t i=0; i < pData->audioIn.count; ++i) { if (fAudioInBuffers[i] != nullptr) delete[] fAudioInBuffers[i]; fAudioInBuffers[i] = new float[newBufferSize]; } for (uint32_t i=0; i < pData->audioOut.count; ++i) { if (fAudioOutBuffers[i] != nullptr) delete[] fAudioOutBuffers[i]; fAudioOutBuffers[i] = new float[newBufferSize]; } if (fHandle2 == nullptr) { for (uint32_t i=0; i < pData->audioIn.count; ++i) { CARLA_ASSERT(fAudioInBuffers[i] != nullptr); fDescriptor->connect_port(fHandle, pData->audioIn.ports[i].rindex, fAudioInBuffers[i]); } for (uint32_t i=0; i < pData->audioOut.count; ++i) { CARLA_ASSERT(fAudioOutBuffers[i] != nullptr); fDescriptor->connect_port(fHandle, pData->audioOut.ports[i].rindex, fAudioOutBuffers[i]); } } else { if (pData->audioIn.count > 0) { CARLA_ASSERT(pData->audioIn.count == 2); CARLA_ASSERT(fAudioInBuffers[0] != nullptr); CARLA_ASSERT(fAudioInBuffers[1] != nullptr); fDescriptor->connect_port(fHandle, pData->audioIn.ports[0].rindex, fAudioInBuffers[0]); fDescriptor->connect_port(fHandle2, pData->audioIn.ports[1].rindex, fAudioInBuffers[1]); } if (pData->audioOut.count > 0) { CARLA_ASSERT(pData->audioOut.count == 2); CARLA_ASSERT(fAudioOutBuffers[0] != nullptr); CARLA_ASSERT(fAudioOutBuffers[1] != nullptr); fDescriptor->connect_port(fHandle, pData->audioOut.ports[0].rindex, fAudioOutBuffers[0]); fDescriptor->connect_port(fHandle2, pData->audioOut.ports[1].rindex, fAudioOutBuffers[1]); } } carla_debug("LadspaPlugin::bufferSizeChanged(%i) - end", newBufferSize); } void sampleRateChanged(const double newSampleRate) override { CARLA_ASSERT_INT(newSampleRate > 0.0, (int)newSampleRate); carla_debug("LadspaPlugin::sampleRateChanged(%g) - start", newSampleRate); // TODO (void)newSampleRate; carla_debug("LadspaPlugin::sampleRateChanged(%g) - end", newSampleRate); } // ------------------------------------------------------------------- // Plugin buffers void clearBuffers() override { carla_debug("LadspaPlugin::clearBuffers() - start"); if (fAudioInBuffers != nullptr) { for (uint32_t i=0; i < pData->audioIn.count; ++i) { if (fAudioInBuffers[i] != nullptr) { delete[] fAudioInBuffers[i]; fAudioInBuffers[i] = nullptr; } } delete[] fAudioInBuffers; fAudioInBuffers = nullptr; } if (fAudioOutBuffers != nullptr) { for (uint32_t i=0; i < pData->audioOut.count; ++i) { if (fAudioOutBuffers[i] != nullptr) { delete[] fAudioOutBuffers[i]; fAudioOutBuffers[i] = nullptr; } } delete[] fAudioOutBuffers; fAudioOutBuffers = nullptr; } if (fParamBuffers != nullptr) { delete[] fParamBuffers; fParamBuffers = nullptr; } CarlaPlugin::clearBuffers(); carla_debug("LadspaPlugin::clearBuffers() - end"); } // ------------------------------------------------------------------- const void* getExtraStuff() const noexcept override { return fRdfDescriptor; } bool init(const char* const filename, const char* const name, const char* const label, const LADSPA_RDF_Descriptor* const rdfDescriptor) { CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false); // --------------------------------------------------------------- // first checks if (pData->client != nullptr) { pData->engine->setLastError("Plugin client is already registered"); return false; } if (filename == nullptr || filename[0] == '\0') { pData->engine->setLastError("null filename"); return false; } if (label == nullptr || label[0] == '\0') { pData->engine->setLastError("null label"); return false; } // --------------------------------------------------------------- // open DLL if (! pData->libOpen(filename)) { pData->engine->setLastError(pData->libError(filename)); return false; } // --------------------------------------------------------------- // get DLL main entry const LADSPA_Descriptor_Function descFn = (LADSPA_Descriptor_Function)pData->libSymbol("ladspa_descriptor"); if (descFn == nullptr) { pData->engine->setLastError("Could not find the LASDPA Descriptor in the plugin library"); return false; } // --------------------------------------------------------------- // get descriptor that matches label unsigned long i = 0; while ((fDescriptor = descFn(i++)) != nullptr) { if (fDescriptor->Label != nullptr && std::strcmp(fDescriptor->Label, label) == 0) break; } if (fDescriptor == nullptr) { pData->engine->setLastError("Could not find the requested plugin label in the plugin library"); return false; } // --------------------------------------------------------------- // get info if (is_ladspa_rdf_descriptor_valid(rdfDescriptor, fDescriptor)) fRdfDescriptor = ladspa_rdf_dup(rdfDescriptor); if (name != nullptr && name[0] != '\0') pData->name = pData->engine->getUniquePluginName(name); else if (fRdfDescriptor != nullptr && fRdfDescriptor->Title != nullptr && fRdfDescriptor->Title[0] != '\0') pData->name = pData->engine->getUniquePluginName(fRdfDescriptor->Title); else if (fDescriptor->Name != nullptr && fDescriptor->Name[0] != '\0') pData->name = pData->engine->getUniquePluginName(fDescriptor->Name); else pData->name = pData->engine->getUniquePluginName(fDescriptor->Label); pData->filename = carla_strdup(filename); // --------------------------------------------------------------- // register client pData->client = pData->engine->addClient(this); if (pData->client == nullptr || ! pData->client->isOk()) { pData->engine->setLastError("Failed to register plugin client"); return false; } // --------------------------------------------------------------- // initialize plugin fHandle = fDescriptor->instantiate(fDescriptor, (unsigned long)pData->engine->getSampleRate()); if (fHandle == nullptr) { pData->engine->setLastError("Plugin failed to initialize"); return false; } // --------------------------------------------------------------- // load plugin settings { #ifdef __USE_GNU const bool isDssiVst(strcasestr(pData->filename, "dssi-vst")); #else const bool isDssiVst(std::strstr(pData->filename, "dssi-vst")); #endif // set default options pData->options = 0x0; if (isDssiVst) pData->options |= PLUGIN_OPTION_FIXED_BUFFERS; if (pData->engine->getOptions().forceStereo) pData->options |= PLUGIN_OPTION_FORCE_STEREO; // set identifier string CarlaString identifier("LADSPA/"); identifier += CarlaString(getUniqueId()); identifier += ","; identifier += label; pData->identifier = identifier.dup(); // load settings pData->options = pData->loadSettings(pData->options, getOptionsAvailable()); // ignore settings, we need this anyway if (isDssiVst) pData->options |= PLUGIN_OPTION_FIXED_BUFFERS; } return true; } // ------------------------------------------------------------------- private: LADSPA_Handle fHandle; LADSPA_Handle fHandle2; const LADSPA_Descriptor* fDescriptor; const LADSPA_RDF_Descriptor* fRdfDescriptor; float** fAudioInBuffers; float** fAudioOutBuffers; float* fParamBuffers; CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(LadspaPlugin) }; CARLA_BACKEND_END_NAMESPACE #endif // WANT_LADSPA // ------------------------------------------------------------------------------------------------------------------- CARLA_BACKEND_START_NAMESPACE CarlaPlugin* CarlaPlugin::newLADSPA(const Initializer& init, const LADSPA_RDF_Descriptor* const rdfDescriptor) { carla_debug("CarlaPlugin::newLADSPA({%p, \"%s\", \"%s\", \"%s\"}, %p)", init.engine, init.filename, init.name, init.label, rdfDescriptor); #ifdef WANT_LADSPA LadspaPlugin* const plugin(new LadspaPlugin(init.engine, init.id)); if (! plugin->init(init.filename, init.name, init.label, rdfDescriptor)) { delete plugin; return nullptr; } plugin->reload(); if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && ! plugin->canRunInRack()) { init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo LADSPA plugins, sorry!"); delete plugin; return nullptr; } return plugin; #else init.engine->setLastError("LADSPA support not available"); return nullptr; #endif } CARLA_BACKEND_END_NAMESPACE // -------------------------------------------------------------------------------------------------------------------