/* * Carla Plugin, LADSPA implementation * Copyright (C) 2011-2018 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" #include "CarlaLadspaUtils.hpp" #include "CarlaMathUtils.hpp" CARLA_BACKEND_START_NAMESPACE // ----------------------------------------------------- class CarlaPluginLADSPA : public CarlaPlugin { public: CarlaPluginLADSPA(CarlaEngine* const engine, const uint id) noexcept : CarlaPlugin(engine, id), fHandles(), fDescriptor(nullptr), fRdfDescriptor(nullptr), fAudioInBuffers(nullptr), fAudioOutBuffers(nullptr), fExtraStereoBuffer(), fParamBuffers(nullptr), fLatencyIndex(-1), fForcedStereoIn(false), fForcedStereoOut(false), fNeedsFixedBuffers(false) { carla_debug("CarlaPluginLADSPA::CarlaPluginLADSPA(%p, %i)", engine, id); carla_zeroPointers(fExtraStereoBuffer, 2); } ~CarlaPluginLADSPA() noexcept override { carla_debug("CarlaPluginLADSPA::~CarlaPluginLADSPA()"); 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) { for (LinkedList::Itenerator it = fHandles.begin2(); it.valid(); it.next()) { LADSPA_Handle const handle(it.getValue(nullptr)); CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr); try { fDescriptor->cleanup(handle); } CARLA_SAFE_EXCEPTION("LADSPA cleanup"); } } fHandles.clear(); 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(); } int64_t getUniqueId() const noexcept override { CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr, 0); return static_cast(fDescriptor->UniqueID); } uint32_t getLatencyInFrames() const noexcept override { if (fLatencyIndex < 0 || fParamBuffers == nullptr) return 0; const float latency(fParamBuffers[fLatencyIndex]); CARLA_SAFE_ASSERT_RETURN(latency >= 0.0f, 0); return static_cast(latency); } // ------------------------------------------------------------------- // Information (count) uint32_t getParameterScalePointCount(const uint32_t parameterId) const noexcept override { CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, 0); if (fRdfDescriptor == nullptr) return 0; const int32_t rindex(pData->param.data[parameterId].rindex); CARLA_SAFE_ASSERT_RETURN(rindex >= 0, 0); if (rindex >= static_cast(fRdfDescriptor->PortCount)) return 0; const LADSPA_RDF_Port& port(fRdfDescriptor->Ports[rindex]); return static_cast(port.ScalePointCount); } // ------------------------------------------------------------------- // Information (current data) // nothing // ------------------------------------------------------------------- // Information (per-plugin data) uint getOptionsAvailable() const noexcept override { uint options = 0x0; // can't disable fixed buffers if using latency if (fLatencyIndex == -1 && ! fNeedsFixedBuffers) options |= PLUGIN_OPTION_FIXED_BUFFERS; // can't disable forced stereo if enabled in the engine if (pData->engine->getOptions().forceStereo) pass(); // if inputs or outputs are just 1, then yes we can force stereo else if (pData->audioIn.count == 1 || pData->audioOut.count == 1 || fForcedStereoIn || fForcedStereoOut) 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); // bad plugins might have set output values out of bounds if (pData->param.data[parameterId].type == PARAMETER_OUTPUT) return pData->param.ranges[parameterId].getFixedValue(fParamBuffers[parameterId]); // not output, should be fine 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); const int32_t rindex(pData->param.data[parameterId].rindex); CARLA_SAFE_ASSERT_RETURN(rindex >= 0, 0.0f); CARLA_SAFE_ASSERT_RETURN(rindex < static_cast(fRdfDescriptor->PortCount), 0.0f); const LADSPA_RDF_Port& port(fRdfDescriptor->Ports[rindex]); CARLA_SAFE_ASSERT_RETURN(scalePointId < port.ScalePointCount, 0.0f); const LADSPA_RDF_ScalePoint& scalePoint(port.ScalePoints[scalePointId]); return pData->param.ranges[parameterId].getFixedValue(scalePoint.Value); } void getLabel(char* const strBuf) const noexcept override { CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr, nullStrBuf(strBuf)); CARLA_SAFE_ASSERT_RETURN(fDescriptor->Label != nullptr, nullStrBuf(strBuf)); std::strncpy(strBuf, fDescriptor->Label, STR_MAX); } void getMaker(char* const strBuf) const noexcept override { CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr, nullStrBuf(strBuf)); CARLA_SAFE_ASSERT_RETURN(fDescriptor->Maker != nullptr, nullStrBuf(strBuf)); if (fRdfDescriptor != nullptr && fRdfDescriptor->Creator != nullptr) { std::strncpy(strBuf, fRdfDescriptor->Creator, STR_MAX); return; } std::strncpy(strBuf, fDescriptor->Maker, STR_MAX); } void getCopyright(char* const strBuf) const noexcept override { CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr, nullStrBuf(strBuf)); CARLA_SAFE_ASSERT_RETURN(fDescriptor->Copyright != nullptr, nullStrBuf(strBuf)); std::strncpy(strBuf, fDescriptor->Copyright, STR_MAX); } void getRealName(char* const strBuf) const noexcept override { CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr, nullStrBuf(strBuf)); CARLA_SAFE_ASSERT_RETURN(fDescriptor->Name != nullptr, nullStrBuf(strBuf)); if (fRdfDescriptor != nullptr && fRdfDescriptor->Title != nullptr) { std::strncpy(strBuf, fRdfDescriptor->Title, STR_MAX); return; } std::strncpy(strBuf, fDescriptor->Name, STR_MAX); } void getParameterName(const uint32_t parameterId, char* const strBuf) const noexcept override { CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr, nullStrBuf(strBuf)); CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, nullStrBuf(strBuf)); const int32_t rindex(pData->param.data[parameterId].rindex); CARLA_SAFE_ASSERT_RETURN(rindex >= 0, nullStrBuf(strBuf)); CARLA_SAFE_ASSERT_RETURN(rindex < static_cast(fDescriptor->PortCount), nullStrBuf(strBuf)); CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortNames[rindex] != nullptr, nullStrBuf(strBuf)); if (getSeparatedParameterNameOrUnit(fDescriptor->PortNames[rindex], strBuf, true)) return; std::strncpy(strBuf, fDescriptor->PortNames[rindex], STR_MAX); } void getParameterUnit(const uint32_t parameterId, char* const strBuf) const noexcept override { CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, nullStrBuf(strBuf)); const int32_t rindex(pData->param.data[parameterId].rindex); CARLA_SAFE_ASSERT_RETURN(rindex >= 0, nullStrBuf(strBuf)); if (fRdfDescriptor != nullptr && rindex < static_cast(fRdfDescriptor->PortCount)) { const LADSPA_RDF_Port& 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; } } } CARLA_SAFE_ASSERT_RETURN(rindex < static_cast(fDescriptor->PortCount), nullStrBuf(strBuf)); CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortNames[rindex] != nullptr, nullStrBuf(strBuf)); if (getSeparatedParameterNameOrUnit(fDescriptor->PortNames[rindex], strBuf, false)) return; nullStrBuf(strBuf); } void getParameterSymbol(const uint32_t parameterId, char* const strBuf) const noexcept override { CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, nullStrBuf(strBuf)); if (fRdfDescriptor == nullptr) return nullStrBuf(strBuf); const int32_t rindex(pData->param.data[parameterId].rindex); CARLA_SAFE_ASSERT_RETURN(rindex >= 0, nullStrBuf(strBuf)); if (rindex >= static_cast(fRdfDescriptor->PortCount)) return nullStrBuf(strBuf); const LADSPA_RDF_Port& port(fRdfDescriptor->Ports[rindex]); if (! LADSPA_PORT_HAS_LABEL(port.Hints)) return nullStrBuf(strBuf); CARLA_SAFE_ASSERT_RETURN(port.Label != nullptr, nullStrBuf(strBuf)); std::strncpy(strBuf, port.Label, STR_MAX); } void getParameterScalePointLabel(const uint32_t parameterId, const uint32_t scalePointId, char* const strBuf) const noexcept override { CARLA_SAFE_ASSERT_RETURN(fRdfDescriptor != nullptr, nullStrBuf(strBuf)); CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, nullStrBuf(strBuf)); const int32_t rindex(pData->param.data[parameterId].rindex); CARLA_SAFE_ASSERT_RETURN(rindex >= 0, nullStrBuf(strBuf)); CARLA_SAFE_ASSERT_RETURN(rindex < static_cast(fRdfDescriptor->PortCount), nullStrBuf(strBuf)); const LADSPA_RDF_Port& port(fRdfDescriptor->Ports[rindex]); CARLA_SAFE_ASSERT_RETURN(scalePointId < port.ScalePointCount, nullStrBuf(strBuf)); const LADSPA_RDF_ScalePoint& scalePoint(port.ScalePoints[scalePointId]); CARLA_SAFE_ASSERT_RETURN(scalePoint.Label != nullptr, nullStrBuf(strBuf)); std::strncpy(strBuf, scalePoint.Label, STR_MAX); } // ------------------------------------------------------------------- // 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); } void setParameterValueRT(const uint32_t parameterId, const float value) 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::setParameterValueRT(parameterId, fixedValue); } // ------------------------------------------------------------------- // Misc // nothing // ------------------------------------------------------------------- // Plugin state void reload() override { CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr,); CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,); CARLA_SAFE_ASSERT_RETURN(fHandles.count() > 0,); carla_debug("CarlaPluginLADSPA::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(getSafePortCount()); uint32_t aIns, aOuts, params; aIns = aOuts = params = 0; bool forcedStereoIn, forcedStereoOut; forcedStereoIn = forcedStereoOut = false; bool needsCtrlIn, needsCtrlOut; needsCtrlIn = needsCtrlOut = false; 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) { if ((aIns == 1 || aOuts == 1) && fHandles.count() == 1 && addInstance()) { 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]; carla_zeroFloats(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); if (LADSPA_IS_PORT_AUDIO(portType)) { portName.clear(); if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT) { portName = pData->name; portName += ":"; } if (fDescriptor->PortNames[i] != nullptr && fDescriptor->PortNames[i][0] != '\0') { portName += fDescriptor->PortNames[i]; } else { if (LADSPA_IS_PORT_INPUT(portType)) { if (aIns > 1) { portName += "audio-in_"; portName += CarlaString(iAudioIn+1); } else portName += "audio-in"; } else { if (aOuts > 1) { portName += "audio-out_"; portName += CarlaString(iAudioOut+1); } else portName += "audio-out"; } } portName.truncate(portNameSize); if (LADSPA_IS_PORT_INPUT(portType)) { const uint32_t j = iAudioIn++; pData->audioIn.ports[j].port = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true, j); pData->audioIn.ports[j].rindex = i; if (forcedStereoIn) { portName += "_2"; pData->audioIn.ports[1].port = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true, 1); pData->audioIn.ports[1].rindex = i; } } else if (LADSPA_IS_PORT_OUTPUT(portType)) { const uint32_t j = iAudioOut++; pData->audioOut.ports[j].port = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false, j); pData->audioOut.ports[j].rindex = i; if (forcedStereoOut) { portName += "_2"; pData->audioOut.ports[1].port = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false, 1); 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)) { const uint32_t j = iCtrl++; pData->param.data[j].index = static_cast(j); pData->param.data[j].rindex = static_cast(i); const char* const paramName(fDescriptor->PortNames[i] != nullptr ? fDescriptor->PortNames[i] : "unknown"); 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 (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor)) { min *= sampleRate; max *= sampleRate; pData->param.data[j].hints |= PARAMETER_USES_SAMPLERATE; } if (min >= max) { carla_stderr2("WARNING - Broken plugin parameter '%s': min >= max", paramName); 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_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 { const 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(paramName, "latency") == 0 || std::strcmp(paramName, "_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; CARLA_SAFE_ASSERT_INT2(fLatencyIndex == static_cast(j), fLatencyIndex, j); } else { pData->param.data[j].hints |= PARAMETER_IS_ENABLED; pData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE; needsCtrlOut = true; } } else { 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 >= 2) 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; for (LinkedList::Itenerator it = fHandles.begin2(); it.valid(); it.next()) { LADSPA_Handle const handle(it.getValue(nullptr)); CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr); try { fDescriptor->connect_port(handle, i, &fParamBuffers[j]); } CARLA_SAFE_EXCEPTION("LADSPA connect_port (parameter)"); } } else { // Not Audio or Control carla_stderr2("ERROR - Got a broken Port (neither Audio or Control)"); for (LinkedList::Itenerator it = fHandles.begin2(); it.valid(); it.next()) { LADSPA_Handle const handle(it.getValue(nullptr)); CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr); try { fDescriptor->connect_port(handle, i, nullptr); } CARLA_SAFE_EXCEPTION("LADSPA connect_port (null)"); } } } 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, 0); } 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, 0); } 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; #ifndef BUILD_BRIDGE 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; #endif // extra plugin hints pData->extraHints = 0x0; // check initial latency findInitialLatencyValue(aIns, aOuts); fForcedStereoIn = forcedStereoIn; fForcedStereoOut = forcedStereoOut; bufferSizeChanged(pData->engine->getBufferSize()); if (pData->active) activate(); carla_debug("CarlaPluginLADSPA::reload() - end"); } void findInitialLatencyValue(const uint32_t aIns, const uint32_t aOuts) const { if (fLatencyIndex < 0 || fHandles.count() == 0) return; // we need to pre-run the plugin so it can update its latency control-port const LADSPA_Handle handle(fHandles.getFirst(nullptr)); CARLA_SAFE_ASSERT_RETURN(handle != nullptr,); float tmpIn [(aIns > 0) ? aIns : 1][2]; float tmpOut[(aOuts > 0) ? aOuts : 1][2]; for (uint32_t j=0; j < aIns; ++j) { tmpIn[j][0] = 0.0f; tmpIn[j][1] = 0.0f; try { fDescriptor->connect_port(handle, pData->audioIn.ports[j].rindex, tmpIn[j]); } CARLA_SAFE_EXCEPTION("LADSPA connect_port (latency input)"); } for (uint32_t j=0; j < aOuts; ++j) { tmpOut[j][0] = 0.0f; tmpOut[j][1] = 0.0f; try { fDescriptor->connect_port(handle, pData->audioOut.ports[j].rindex, tmpOut[j]); } CARLA_SAFE_EXCEPTION("LADSPA connect_port (latency output)"); } if (fDescriptor->activate != nullptr) { try { fDescriptor->activate(handle); } CARLA_SAFE_EXCEPTION("LADSPA latency activate"); } try { fDescriptor->run(handle, 2); } CARLA_SAFE_EXCEPTION("LADSPA latency run"); if (fDescriptor->deactivate != nullptr) { try { fDescriptor->deactivate(handle); } CARLA_SAFE_EXCEPTION("LADSPA latency deactivate"); } // done, let's get the value if (const uint32_t latency = getLatencyInFrames()) { pData->client->setLatency(latency); #ifndef BUILD_BRIDGE pData->latency.recreateBuffers(std::max(aIns, aOuts), latency); #endif } } // ------------------------------------------------------------------- // Plugin processing void activate() noexcept override { CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,); if (fDescriptor->activate != nullptr) { for (LinkedList::Itenerator it = fHandles.begin2(); it.valid(); it.next()) { LADSPA_Handle const handle(it.getValue(nullptr)); CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr); try { fDescriptor->activate(handle); } CARLA_SAFE_EXCEPTION("LADSPA activate"); } } } void deactivate() noexcept override { CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,); if (fDescriptor->deactivate != nullptr) { for (LinkedList::Itenerator it = fHandles.begin2(); it.valid(); it.next()) { LADSPA_Handle const handle(it.getValue(nullptr)); CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr); try { fDescriptor->deactivate(handle); } CARLA_SAFE_EXCEPTION("LADSPA deactivate"); } } } void process(const float** const audioIn, float** const audioOut, const float** const, float** const, 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) carla_zeroFloats(audioOut[i], frames); return; } // -------------------------------------------------------------------------------------------------------- // Check if needs reset if (pData->needsReset) { // nothing to do pData->needsReset = false; } // -------------------------------------------------------------------------------------------------------- // Event Input and Processing if (pData->event.portIn != nullptr) { // ---------------------------------------------------------------------------------------------------- // Event Input (System) const bool isSampleAccurate = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0; uint32_t timeOffset = 0; for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i) { const EngineEvent& event(pData->event.portIn->getEvent(i)); uint32_t eventTime = event.time; CARLA_SAFE_ASSERT_UINT2_CONTINUE(eventTime < frames, eventTime, frames); if (eventTime < timeOffset) { carla_stderr2("Timing error, eventTime:%u < timeOffset:%u for '%s'", eventTime, timeOffset, pData->name); eventTime = timeOffset; } if (isSampleAccurate && eventTime > timeOffset) { if (processSingle(audioIn, audioOut, eventTime - timeOffset, timeOffset)) timeOffset = eventTime; } 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; setDryWetRT(value); } if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0) { value = ctrlEvent.value*127.0f/100.0f; setVolumeRT(value); } 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; } setBalanceLeftRT(left); setBalanceRightRT(right); } } #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 { if (pData->param.data[k].hints & PARAMETER_IS_LOGARITHMIC) value = pData->param.ranges[k].getUnnormalizedLogValue(ctrlEvent.value); else value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value); if (pData->param.data[k].hints & PARAMETER_IS_INTEGER) value = std::rint(value); } setParameterValueRT(k, value); } 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(audioIn, audioOut, frames - timeOffset, timeOffset); } // End of Event Input and Processing // -------------------------------------------------------------------------------------------------------- // Plugin processing (no events) else { processSingle(audioIn, audioOut, frames, 0); } // End of Plugin processing (no events) // -------------------------------------------------------------------------------------------------------- // 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(const float** const audioIn, float** const audioOut, const uint32_t frames, const uint32_t timeOffset) { CARLA_SAFE_ASSERT_RETURN(frames > 0, false); if (pData->audioIn.count > 0) { CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false); } if (pData->audioOut.count > 0) { CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false); } // -------------------------------------------------------------------------------------------------------- // Try lock, silence otherwise #ifndef STOAT_TEST_BUILD if (pData->engine->isOffline()) { pData->singleMutex.lock(); } else #endif if (! pData->singleMutex.tryLock()) { for (uint32_t i=0; i < pData->audioOut.count; ++i) { for (uint32_t k=0; k < frames; ++k) audioOut[i][k+timeOffset] = 0.0f; } return false; } // -------------------------------------------------------------------------------------------------------- // Set audio buffers const bool customMonoOut = pData->audioOut.count == 2 && fForcedStereoOut && ! fForcedStereoIn; const bool customStereoOut = pData->audioOut.count == 2 && fForcedStereoIn && ! fForcedStereoOut; if (! customMonoOut) { for (uint32_t i=0; i < pData->audioOut.count; ++i) carla_zeroFloats(fAudioOutBuffers[i], frames); } for (uint32_t i=0; i < pData->audioIn.count; ++i) carla_copyFloats(fAudioInBuffers[i], audioIn[i]+timeOffset, frames); // -------------------------------------------------------------------------------------------------------- // Run plugin uint instn = 0; for (LinkedList::Itenerator it = fHandles.begin2(); it.valid(); it.next(), ++instn) { LADSPA_Handle const handle(it.getValue(nullptr)); CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr); // ---------------------------------------------------------------------------------------------------- // Mixdown for forced stereo if (customMonoOut) carla_zeroFloats(fAudioOutBuffers[instn], frames); // ---------------------------------------------------------------------------------------------------- // Run it try { fDescriptor->run(handle, frames); } CARLA_SAFE_EXCEPTION("LADSPA run"); // ---------------------------------------------------------------------------------------------------- // Mixdown for forced stereo if (customMonoOut) carla_multiply(fAudioOutBuffers[instn], 0.5f, frames); else if (customStereoOut) carla_copyFloats(fExtraStereoBuffer[instn], fAudioOutBuffers[instn], frames); } if (customStereoOut) { carla_copyFloats(fAudioOutBuffers[0], fExtraStereoBuffer[0], frames); carla_copyFloats(fAudioOutBuffers[1], fExtraStereoBuffer[1], frames); } #ifndef BUILD_BRIDGE // -------------------------------------------------------------------------------------------------------- // Post-processing (dry/wet, volume and balance) { const bool doDryWet = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && carla_isNotEqual(pData->postProc.dryWet, 1.0f); const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_isEqual(pData->postProc.balanceLeft, -1.0f) && carla_isEqual(pData->postProc.balanceRight, 1.0f)); const bool isMono = (pData->audioIn.count == 1); bool isPair; float bufValue, oldBufLeft[doBalance ? frames : 1]; for (uint32_t i=0; i < pData->audioOut.count; ++i) { // Dry/Wet if (doDryWet) { const uint32_t c = isMono ? 0 : i; for (uint32_t k=0; k < frames; ++k) { if (k < pData->latency.frames) bufValue = pData->latency.buffers[c][k]; else if (pData->latency.frames < frames) bufValue = fAudioInBuffers[c][k-pData->latency.frames]; else bufValue = fAudioInBuffers[c][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); carla_copyFloats(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) audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume; } } } // End of Post-processing // -------------------------------------------------------------------------------------------------------- // Save latency values for next callback if (const uint32_t latframes = pData->latency.frames) { CARLA_SAFE_ASSERT(timeOffset == 0); if (latframes <= frames) { for (uint32_t i=0; i < pData->audioIn.count; ++i) carla_copyFloats(pData->latency.buffers[i], audioIn[i]+(frames-latframes), latframes); } else { const uint32_t diff = pData->latency.frames-frames; for (uint32_t i=0, k; iaudioIn.count; ++i) { // push back buffer by 'frames' for (k=0; k < diff; ++k) pData->latency.buffers[i][k] = pData->latency.buffers[i][k+frames]; // put current input at the end for (uint32_t j=0; k < latframes; ++j, ++k) pData->latency.buffers[i][k] = audioIn[i][j]; } } } #else // BUILD_BRIDGE for (uint32_t i=0; i < pData->audioOut.count; ++i) { for (uint32_t k=0; k < frames; ++k) audioOut[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("CarlaPluginLADSPA::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]; carla_zeroFloats(fAudioInBuffers[i], newBufferSize); } for (uint32_t i=0; i < pData->audioOut.count; ++i) { if (fAudioOutBuffers[i] != nullptr) delete[] fAudioOutBuffers[i]; fAudioOutBuffers[i] = new float[newBufferSize]; carla_zeroFloats(fAudioOutBuffers[i], newBufferSize); } if (fExtraStereoBuffer[0] != nullptr) { delete[] fExtraStereoBuffer[0]; fExtraStereoBuffer[0] = nullptr; } if (fExtraStereoBuffer[1] != nullptr) { delete[] fExtraStereoBuffer[1]; fExtraStereoBuffer[1] = nullptr; } if (fForcedStereoIn && pData->audioOut.count == 2) { fExtraStereoBuffer[0] = new float[newBufferSize]; fExtraStereoBuffer[1] = new float[newBufferSize]; carla_zeroFloats(fExtraStereoBuffer[0], newBufferSize); carla_zeroFloats(fExtraStereoBuffer[1], newBufferSize); } reconnectAudioPorts(); carla_debug("CarlaPluginLADSPA::bufferSizeChanged(%i) - end", newBufferSize); } void sampleRateChanged(const double newSampleRate) override { CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate); carla_stdout("CarlaPluginLADSPA::sampleRateChanged(%g) - start", newSampleRate); if (pData->active) deactivate(); const std::size_t instanceCount(fHandles.count()); if (fDescriptor->cleanup != nullptr) { for (LinkedList::Itenerator it = fHandles.begin2(); it.valid(); it.next()) { LADSPA_Handle const handle(it.getValue(nullptr)); CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr); try { fDescriptor->cleanup(handle); } CARLA_SAFE_EXCEPTION("LADSPA cleanup"); } } fHandles.clear(); for (std::size_t i=0; iactive) activate(); carla_stdout("CarlaPluginLADSPA::sampleRateChanged(%g) - end", newSampleRate); } void reconnectAudioPorts() const noexcept { if (fForcedStereoIn) { if (LADSPA_Handle const handle = fHandles.getFirst(nullptr)) { try { fDescriptor->connect_port(handle, pData->audioIn.ports[0].rindex, fAudioInBuffers[0]); } CARLA_SAFE_EXCEPTION("LADSPA connect_port (forced stereo input, first)"); } if (LADSPA_Handle const handle = fHandles.getLast(nullptr)) { try { fDescriptor->connect_port(handle, pData->audioIn.ports[1].rindex, fAudioInBuffers[1]); } CARLA_SAFE_EXCEPTION("LADSPA connect_port (forced stereo input, last)"); } } else { for (LinkedList::Itenerator it = fHandles.begin2(); it.valid(); it.next()) { LADSPA_Handle const handle(it.getValue(nullptr)); CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr); for (uint32_t i=0; i < pData->audioIn.count; ++i) { try { fDescriptor->connect_port(handle, pData->audioIn.ports[i].rindex, fAudioInBuffers[i]); } CARLA_SAFE_EXCEPTION("LADSPA connect_port (audio input)"); } } } if (fForcedStereoOut) { if (LADSPA_Handle const handle = fHandles.getFirst(nullptr)) { try { fDescriptor->connect_port(handle, pData->audioOut.ports[0].rindex, fAudioOutBuffers[0]); } CARLA_SAFE_EXCEPTION("LADSPA connect_port (forced stereo output, first)"); } if (LADSPA_Handle const handle = fHandles.getLast(nullptr)) { try { fDescriptor->connect_port(handle, pData->audioOut.ports[1].rindex, fAudioOutBuffers[1]); } CARLA_SAFE_EXCEPTION("LADSPA connect_port (forced stereo output, last)"); } } else { for (LinkedList::Itenerator it = fHandles.begin2(); it.valid(); it.next()) { LADSPA_Handle const handle(it.getValue(nullptr)); CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr); for (uint32_t i=0; i < pData->audioOut.count; ++i) { try { fDescriptor->connect_port(handle, pData->audioOut.ports[i].rindex, fAudioOutBuffers[i]); } CARLA_SAFE_EXCEPTION("LADSPA connect_port (audio output)"); } } } } // ------------------------------------------------------------------- // Plugin buffers void clearBuffers() noexcept override { carla_debug("CarlaPluginLADSPA::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 (fExtraStereoBuffer[0] != nullptr) { delete[] fExtraStereoBuffer[0]; fExtraStereoBuffer[0] = nullptr; } if (fExtraStereoBuffer[1] != nullptr) { delete[] fExtraStereoBuffer[1]; fExtraStereoBuffer[1] = nullptr; } if (fParamBuffers != nullptr) { delete[] fParamBuffers; fParamBuffers = nullptr; } CarlaPlugin::clearBuffers(); carla_debug("CarlaPluginLADSPA::clearBuffers() - end"); } // ------------------------------------------------------------------- const void* getNativeDescriptor() const noexcept override { return fDescriptor; } const void* getExtraStuff() const noexcept override { return fRdfDescriptor; } // ------------------------------------------------------------------- bool init(const char* const filename, const char* name, const char* const label, const uint options, 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; } // --------------------------------------------------------------- // open DLL if (! pData->libOpen(filename)) { pData->engine->setLastError(pData->libError(filename)); return false; } // --------------------------------------------------------------- // get DLL main entry const LADSPA_Descriptor_Function descFn = 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 // if label is null, get first valid plugin const bool nullLabel = (label == nullptr || label[0] == '\0'); for (ulong d=0;; ++d) { try { fDescriptor = descFn(d); } catch(...) { carla_stderr2("Caught exception when trying to get LADSPA descriptor"); fDescriptor = nullptr; break; } if (fDescriptor == nullptr) break; if (fDescriptor->Label == nullptr || fDescriptor->Label[0] == '\0') { carla_stderr2("WARNING - Got an invalid label, will not use this plugin"); fDescriptor = nullptr; break; } if (fDescriptor->run == nullptr) { carla_stderr2("WARNING - Plugin has no run, cannot use it"); fDescriptor = nullptr; break; } if (nullLabel || 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; } // --------------------------------------------------------------- // check for fixed buffer size requirement fNeedsFixedBuffers = CarlaString(filename).contains("dssi-vst", true); if (fNeedsFixedBuffers && ! pData->engine->usesConstantBufferSize()) { pData->engine->setLastError("Cannot use this plugin under the current engine.\n" "The plugin requires a fixed block size which is not possible right now."); return false; } // --------------------------------------------------------------- // get info if (is_ladspa_rdf_descriptor_valid(rdfDescriptor, fDescriptor)) fRdfDescriptor = ladspa_rdf_dup(rdfDescriptor); if (name == nullptr || name[0] == '\0') { /**/ if (fRdfDescriptor != nullptr && fRdfDescriptor->Title != nullptr && fRdfDescriptor->Title[0] != '\0') name = fRdfDescriptor->Title; else if (fDescriptor->Name != nullptr && fDescriptor->Name[0] != '\0') name = fDescriptor->Name; else name = fDescriptor->Label; } pData->name = pData->engine->getUniquePluginName(name); 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 if (! addInstance()) return false; // --------------------------------------------------------------- // find latency port index for (uint32_t i=0, iCtrl=0, count=getSafePortCount(); iPortDescriptors[i]); if (! LADSPA_IS_PORT_CONTROL(portType)) continue; const uint32_t index(iCtrl++); if (! LADSPA_IS_PORT_OUTPUT(portType)) continue; const char* const portName(fDescriptor->PortNames[i]); CARLA_SAFE_ASSERT_BREAK(portName != nullptr); if (std::strcmp(portName, "latency") == 0 || std::strcmp(portName, "_latency") == 0) { fLatencyIndex = static_cast(index); break; } } // --------------------------------------------------------------- // set default options pData->options = 0x0; /**/ if (fLatencyIndex >= 0 || fNeedsFixedBuffers) pData->options |= PLUGIN_OPTION_FIXED_BUFFERS; else if (options & PLUGIN_OPTION_FIXED_BUFFERS) pData->options |= PLUGIN_OPTION_FIXED_BUFFERS; /**/ if (pData->engine->getOptions().forceStereo) pData->options |= PLUGIN_OPTION_FORCE_STEREO; else if (options & PLUGIN_OPTION_FORCE_STEREO) pData->options |= PLUGIN_OPTION_FORCE_STEREO; return true; } // ------------------------------------------------------------------- private: LinkedList fHandles; const LADSPA_Descriptor* fDescriptor; const LADSPA_RDF_Descriptor* fRdfDescriptor; float** fAudioInBuffers; float** fAudioOutBuffers; float* fExtraStereoBuffer[2]; // used only if forcedStereoIn and audioOut == 2 float* fParamBuffers; int32_t fLatencyIndex; // -1 if invalid bool fForcedStereoIn; bool fForcedStereoOut; bool fNeedsFixedBuffers; // ------------------------------------------------------------------- bool addInstance() { LADSPA_Handle handle; try { handle = fDescriptor->instantiate(fDescriptor, static_cast(pData->engine->getSampleRate())); } CARLA_SAFE_EXCEPTION_RETURN_ERR("LADSPA instantiate", "Plugin failed to initialize"); for (uint32_t i=0, count=pData->param.count; iparam.data[i].rindex); CARLA_SAFE_ASSERT_CONTINUE(rindex >= 0); try { fDescriptor->connect_port(handle, static_cast(rindex), &fParamBuffers[i]); } CARLA_SAFE_EXCEPTION("LADSPA connect_port"); } if (fHandles.append(handle)) return true; try { fDescriptor->cleanup(handle); } CARLA_SAFE_EXCEPTION("LADSPA cleanup"); pData->engine->setLastError("Out of memory"); return false; } uint32_t getSafePortCount() const noexcept { if (fDescriptor->PortCount == 0) return 0; CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortDescriptors != nullptr, 0); CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortRangeHints != nullptr, 0); CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortNames != nullptr, 0); return static_cast(fDescriptor->PortCount); } bool getSeparatedParameterNameOrUnit(const char* const paramName, char* const strBuf, const bool wantName) const noexcept { if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, true)) return true; if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, false)) return true; return false; } static bool _getSeparatedParameterNameOrUnitImpl(const char* const paramName, char* const strBuf, const bool wantName, const bool useBracket) noexcept { const char* const sepBracketStart(std::strstr(paramName, useBracket ? " [" : " (")); if (sepBracketStart == nullptr) return false; const char* const sepBracketEnd(std::strstr(sepBracketStart, useBracket ? "]" : ")")); if (sepBracketEnd == nullptr) return false; const std::size_t unitSize(static_cast(sepBracketEnd-sepBracketStart-2)); if (unitSize > 7) // very unlikely to have such big unit return false; const std::size_t sepIndex(std::strlen(paramName)-unitSize-3); // just in case if (sepIndex+2 >= STR_MAX) return false; if (wantName) { std::strncpy(strBuf, paramName, sepIndex); strBuf[sepIndex] = '\0'; } else { std::strncpy(strBuf, paramName+(sepIndex+2), unitSize); strBuf[unitSize] = '\0'; } return true; } // ------------------------------------------------------------------- CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginLADSPA) }; // ------------------------------------------------------------------------------------------------------------------- CarlaPlugin* CarlaPlugin::newLADSPA(const Initializer& init, const LADSPA_RDF_Descriptor* const rdfDescriptor) { carla_debug("CarlaPlugin::newLADSPA({%p, \"%s\", \"%s\", \"%s\", " P_INT64 ", %x}, %p)", init.engine, init.filename, init.name, init.label, init.uniqueId, init.options, rdfDescriptor); CarlaPluginLADSPA* const plugin(new CarlaPluginLADSPA(init.engine, init.id)); if (! plugin->init(init.filename, init.name, init.label, init.options, rdfDescriptor)) { delete plugin; return nullptr; } return plugin; } // ------------------------------------------------------------------------------------------------------------------- CARLA_BACKEND_END_NAMESPACE