/* * Carla Plugin Host * 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 GPL.txt file */ #ifndef HAVE_JUCE # error This file should not be compiled if Juce is disabled #endif #include "CarlaEngineInternal.hpp" #include "CarlaBackendUtils.hpp" // #include "RtLinkedList.hpp" #include "juce_audio_devices.h" using namespace juce; CARLA_BACKEND_START_NAMESPACE #if 0 } // Fix editor indentation #endif // ------------------------------------------------------------------------------------------------------------------- static const char** gRetNames = nullptr; static OwnedArray gJuceDeviceTypes; static void initJuceDevices() { static AudioDeviceManager manager; if (gJuceDeviceTypes.size() == 0) manager.createAudioDeviceTypes(gJuceDeviceTypes); } // ------------------------------------------------------------------------------------------------------------------- // Juce Engine class CarlaEngineJuce : public CarlaEngine, public AudioIODeviceCallback { public: CarlaEngineJuce(AudioIODeviceType* const devType) : CarlaEngine(), AudioIODeviceCallback(), fDeviceType(devType) { carla_debug("CarlaEngineJuce::CarlaEngineJuce(%p)", devType); // just to make sure pData->options.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL; } ~CarlaEngineJuce() override { carla_debug("CarlaEngineJuce::~CarlaEngineJuce()"); if (gRetNames != nullptr) { delete[] gRetNames; gRetNames = nullptr; } gJuceDeviceTypes.clear(true); } // ------------------------------------- bool init(const char* const clientName) override { CARLA_SAFE_ASSERT_RETURN(clientName != nullptr && clientName[0] != '\0', false); carla_debug("CarlaEngineJuce::init(\"%s\")", clientName); if (pData->options.processMode != ENGINE_PROCESS_MODE_CONTINUOUS_RACK && pData->options.processMode != ENGINE_PROCESS_MODE_PATCHBAY) { setLastError("Invalid process mode"); return false; } pData->bufAudio.usePatchbay = (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY); String deviceName; if (pData->options.audioDevice != nullptr && pData->options.audioDevice[0] != '\0') { deviceName = pData->options.audioDevice; } else { const int defaultIndex(fDeviceType->getDefaultDeviceIndex(false)); StringArray deviceNames(fDeviceType->getDeviceNames()); if (defaultIndex >= 0 && defaultIndex < deviceNames.size()) deviceName = deviceNames[defaultIndex]; } if (deviceName.isEmpty()) { setLastError("Audio device has not been selected yet and a default one is not available"); return false; } fDevice = fDeviceType->createDevice(deviceName, deviceName); if (fDevice == nullptr) { setLastError("Failed to create device"); return false; } StringArray inputNames(fDevice->getInputChannelNames()); StringArray outputNames(fDevice->getOutputChannelNames()); BigInteger inputChannels; inputChannels.setRange(0, inputNames.size(), true); BigInteger outputChannels; outputChannels.setRange(0, outputNames.size(), true); String error = fDevice->open(inputChannels, outputChannels, pData->options.audioSampleRate, static_cast(pData->options.audioBufferSize)); if (error.isNotEmpty()) { fDevice = nullptr; setLastError(error.toUTF8()); return false; } pData->bufferSize = static_cast(fDevice->getCurrentBufferSizeSamples()); pData->sampleRate = fDevice->getCurrentSampleRate(); pData->bufAudio.inCount = static_cast(inputChannels.countNumberOfSetBits()); pData->bufAudio.outCount = static_cast(outputChannels.countNumberOfSetBits()); CARLA_ASSERT(pData->bufAudio.outCount > 0); pData->bufAudio.create(pData->bufferSize); fDevice->start(this); CarlaEngine::init(clientName); patchbayRefresh(); return true; } bool close() override { carla_debug("CarlaEngineJuce::close()"); pData->bufAudio.isReady = false; bool hasError = !CarlaEngine::close(); if (fDevice != nullptr) { if (fDevice->isPlaying()) fDevice->stop(); if (fDevice->isOpen()) fDevice->close(); fDevice = nullptr; } pData->bufAudio.clear(); return !hasError; } bool isRunning() const noexcept override { return fDevice != nullptr && fDevice->isPlaying(); } bool isOffline() const noexcept override { return false; } EngineType getType() const noexcept override { return kEngineTypeJuce; } const char* getCurrentDriverName() const noexcept override { return fDeviceType->getTypeName().toRawUTF8(); } // ------------------------------------------------------------------- // Patchbay bool patchbayRefresh() override { CARLA_SAFE_ASSERT_RETURN(pData->bufAudio.isReady, false); pData->bufAudio.initPatchbay(); if (pData->bufAudio.usePatchbay) { // not implemented yet return false; } char strBuf[STR_MAX+1]; strBuf[STR_MAX] = '\0'; //EngineRackBuffers* const rack(pData->bufAudio.rack); // Main { callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED, RACK_PATCHBAY_GROUP_CARLA, PATCHBAY_ICON_CARLA, -1, 0.0f, getName()); callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED, RACK_PATCHBAY_GROUP_CARLA, RACK_PATCHBAY_PORT_AUDIO_IN1, PATCHBAY_PORT_TYPE_AUDIO|PATCHBAY_PORT_IS_INPUT, 0.0f, "audio-in1"); callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED, RACK_PATCHBAY_GROUP_CARLA, RACK_PATCHBAY_PORT_AUDIO_IN2, PATCHBAY_PORT_TYPE_AUDIO|PATCHBAY_PORT_IS_INPUT, 0.0f, "audio-in2"); callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED, RACK_PATCHBAY_GROUP_CARLA, RACK_PATCHBAY_PORT_AUDIO_OUT1, PATCHBAY_PORT_TYPE_AUDIO, 0.0f, "audio-out1"); callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED, RACK_PATCHBAY_GROUP_CARLA, RACK_PATCHBAY_PORT_AUDIO_OUT2, PATCHBAY_PORT_TYPE_AUDIO, 0.0f, "audio-out2"); callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED, RACK_PATCHBAY_GROUP_CARLA, RACK_PATCHBAY_PORT_MIDI_IN, PATCHBAY_PORT_TYPE_MIDI|PATCHBAY_PORT_IS_INPUT, 0.0f, "midi-in"); callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED, RACK_PATCHBAY_GROUP_CARLA, RACK_PATCHBAY_PORT_MIDI_OUT, PATCHBAY_PORT_TYPE_MIDI, 0.0f, "midi-out"); } const String& deviceName(fDevice->getName()); // Audio In { if (deviceName.isNotEmpty()) std::snprintf(strBuf, STR_MAX, "Capture (%s)", deviceName.toRawUTF8()); else std::strncpy(strBuf, "Capture", STR_MAX); callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED, RACK_PATCHBAY_GROUP_AUDIO_IN, PATCHBAY_ICON_HARDWARE, -1, 0.0f, strBuf); StringArray inputNames(fDevice->getInputChannelNames()); CARLA_ASSERT(inputNames.size() == static_cast(pData->bufAudio.inCount)); for (uint i=0; i < pData->bufAudio.inCount; ++i) { String inputName(inputNames[static_cast(i)]); if (inputName.trim().isNotEmpty()) std::snprintf(strBuf, STR_MAX, "%s", inputName.toRawUTF8()); else std::snprintf(strBuf, STR_MAX, "capture_%i", i+1); callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED, RACK_PATCHBAY_GROUP_AUDIO_IN, static_cast(RACK_PATCHBAY_GROUP_AUDIO_IN*1000 + i), PATCHBAY_PORT_TYPE_AUDIO, 0.0f, strBuf); } } // Audio Out { if (deviceName.isNotEmpty()) std::snprintf(strBuf, STR_MAX, "Playback (%s)", deviceName.toRawUTF8()); else std::strncpy(strBuf, "Playback", STR_MAX); callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED, RACK_PATCHBAY_GROUP_AUDIO_OUT, PATCHBAY_ICON_HARDWARE, -1, 0.0f, strBuf); StringArray outputNames(fDevice->getOutputChannelNames()); CARLA_ASSERT(outputNames.size() == static_cast(pData->bufAudio.outCount)); for (uint i=0; i < pData->bufAudio.outCount; ++i) { String outputName(outputNames[static_cast(i)]); if (outputName.trim().isNotEmpty()) std::snprintf(strBuf, STR_MAX, "%s", outputName.toRawUTF8()); else std::snprintf(strBuf, STR_MAX, "playback_%i", i+1); callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED, RACK_PATCHBAY_GROUP_AUDIO_OUT, static_cast(RACK_PATCHBAY_GROUP_AUDIO_OUT*1000 + i), PATCHBAY_PORT_TYPE_AUDIO|PATCHBAY_PORT_IS_INPUT, 0.0f, strBuf); } } #if 0 // midi implemented yet // MIDI In { callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED, RACK_PATCHBAY_GROUP_MIDI_IN, PATCHBAY_ICON_HARDWARE, -1, 0.0f, "Readable MIDI ports"); for (unsigned int i=0, count=fDummyMidiIn.getPortCount(); i < count; ++i) { PortNameToId portNameToId; portNameToId.portId = RACK_PATCHBAY_GROUP_MIDI_IN*1000 + i; std::strncpy(portNameToId.name, fDummyMidiIn.getPortName(i).c_str(), STR_MAX); fUsedMidiIns.append(portNameToId); callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED, RACK_PATCHBAY_GROUP_MIDI_IN, portNameToId.portId, PATCHBAY_PORT_TYPE_MIDI, 0.0f, portNameToId.name); } } // MIDI Out { callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED, RACK_PATCHBAY_GROUP_MIDI_OUT, PATCHBAY_ICON_HARDWARE, -1, 0.0f, "Writable MIDI ports"); for (unsigned int i=0, count=fDummyMidiOut.getPortCount(); i < count; ++i) { PortNameToId portNameToId; portNameToId.portId = RACK_PATCHBAY_GROUP_MIDI_OUT*1000 + i; std::strncpy(portNameToId.name, fDummyMidiOut.getPortName(i).c_str(), STR_MAX); fUsedMidiOuts.append(portNameToId); callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED, 0, RACK_PATCHBAY_GROUP_MIDI_OUT, portNameToId.portId, PATCHBAY_PORT_TYPE_MIDI|PATCHBAY_PORT_IS_INPUT, portNameToId.name); } } #endif #if 0 // Connections rack->connectLock.lock(); for (LinkedList::Itenerator it = rack->connectedIns[0].begin(); it.valid(); it.next()) { const uint& port(it.getValue()); CARLA_SAFE_ASSERT_CONTINUE(port < pData->bufAudio.inCount); ConnectionToId connectionToId; connectionToId.id = rack->lastConnectionId; connectionToId.portOut = RACK_PATCHBAY_GROUP_AUDIO_IN*1000 + port; connectionToId.portIn = RACK_PATCHBAY_PORT_AUDIO_IN1; callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED, rack->lastConnectionId, connectionToId.portOut, connectionToId.portIn, 0.0f, nullptr); rack->usedConnections.append(connectionToId); rack->lastConnectionId++; } for (LinkedList::Itenerator it = rack->connectedIns[1].begin(); it.valid(); it.next()) { const uint& port(it.getValue()); CARLA_SAFE_ASSERT_CONTINUE(port < pData->bufAudio.inCount); ConnectionToId connectionToId; connectionToId.id = rack->lastConnectionId; connectionToId.portOut = RACK_PATCHBAY_GROUP_AUDIO_IN*1000 + port; connectionToId.portIn = RACK_PATCHBAY_PORT_AUDIO_IN2; callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED, rack->lastConnectionId, connectionToId.portOut, connectionToId.portIn, 0.0f, nullptr); rack->usedConnections.append(connectionToId); rack->lastConnectionId++; } for (LinkedList::Itenerator it = rack->connectedOuts[0].begin(); it.valid(); it.next()) { const uint& port(it.getValue()); CARLA_SAFE_ASSERT_CONTINUE(port < pData->bufAudio.outCount); ConnectionToId connectionToId; connectionToId.id = rack->lastConnectionId; connectionToId.portOut = RACK_PATCHBAY_PORT_AUDIO_OUT1; connectionToId.portIn = RACK_PATCHBAY_GROUP_AUDIO_OUT*1000 + port; callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED, rack->lastConnectionId, connectionToId.portOut, connectionToId.portIn, 0.0f, nullptr); rack->usedConnections.append(connectionToId); rack->lastConnectionId++; } for (LinkedList::Itenerator it = rack->connectedOuts[1].begin(); it.valid(); it.next()) { const uint& port(it.getValue()); CARLA_SAFE_ASSERT_CONTINUE(port < pData->bufAudio.outCount); ConnectionToId connectionToId; connectionToId.id = rack->lastConnectionId; connectionToId.portOut = RACK_PATCHBAY_PORT_AUDIO_OUT2; connectionToId.portIn = RACK_PATCHBAY_GROUP_AUDIO_OUT*1000 + port; callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED, rack->lastConnectionId, connectionToId.portOut, connectionToId.portIn, 0.0f, nullptr); rack->usedConnections.append(connectionToId); rack->lastConnectionId++; } pData->bufAudio.rack->connectLock.unlock(); #if 0 for (LinkedList::Itenerator it=fMidiIns.begin(); it.valid(); it.next()) { const MidiPort& midiPort(it.getValue()); ConnectionToId connectionToId; connectionToId.id = rack->lastConnectionId; connectionToId.portOut = RACK_PATCHBAY_GROUP_MIDI_IN*1000 + midiPort.portId; connectionToId.portIn = RACK_PATCHBAY_PORT_MIDI_IN; callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED, rack->lastConnectionId, connectionToId.portOut, connectionToId.portIn, 0.0f, nullptr); rack->usedConnections.append(connectionToId); rack->lastConnectionId++; } for (LinkedList::Itenerator it=fMidiOuts.begin(); it.valid(); it.next()) { const MidiPort& midiPort(it.getValue()); ConnectionToId connectionToId; connectionToId.id = rack->lastConnectionId; connectionToId.portOut = RACK_PATCHBAY_PORT_MIDI_OUT; connectionToId.portIn = RACK_PATCHBAY_GROUP_MIDI_OUT*1000 + midiPort.portId; callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED, rack->lastConnectionId, connectionToId.portOut, connectionToId.portIn, 0.0f, nullptr); rack->usedConnections.append(connectionToId); rack->lastConnectionId++; } #endif #endif return true; } // ------------------------------------------------------------------- protected: void audioDeviceIOCallback(const float** inputChannelData, int numInputChannels, float** outputChannelData, int numOutputChannels, int numSamples) override { // assert juce buffers CARLA_SAFE_ASSERT_RETURN(numInputChannels == static_cast(pData->bufAudio.inCount),); CARLA_SAFE_ASSERT_RETURN(numOutputChannels == static_cast(pData->bufAudio.outCount),); CARLA_SAFE_ASSERT_RETURN(outputChannelData != nullptr,); CARLA_SAFE_ASSERT_RETURN(numSamples == static_cast(pData->bufferSize),); if (numOutputChannels == 0 || ! pData->bufAudio.isReady) return runPendingRtEvents(); // initialize input events carla_zeroStruct(pData->bufEvents.in, kMaxEngineEventInternalCount); // TODO - get events from juce if (pData->bufAudio.usePatchbay) { } else { pData->processRackFull(const_cast(inputChannelData), static_cast(numInputChannels), outputChannelData, static_cast(numOutputChannels), static_cast(numSamples), false); } // output events { // TODO //fMidiOutEvents... } runPendingRtEvents(); return; // unused (void)inputChannelData; (void)numInputChannels; } void audioDeviceAboutToStart(AudioIODevice* /*device*/) override { } void audioDeviceStopped() override { } void audioDeviceError(const String& errorMessage) override { callback(ENGINE_CALLBACK_ERROR, 0, 0, 0, 0.0f, errorMessage.toRawUTF8()); } // ------------------------------------------------------------------- bool connectRackMidiInPort(const int) override { return false; } bool connectRackMidiOutPort(const int) override { return false; } bool disconnectRackMidiInPort(const int) override { return false; } bool disconnectRackMidiOutPort(const int) override { return false; } // ------------------------------------- private: ScopedPointer fDevice; AudioIODeviceType* const fDeviceType; CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineJuce) }; // ----------------------------------------- CarlaEngine* CarlaEngine::newJuce(const AudioApi api) { initJuceDevices(); String juceApi; switch (api) { case AUDIO_API_NULL: case AUDIO_API_OSS: case AUDIO_API_PULSE: break; case AUDIO_API_JACK: juceApi = "JACK"; break; case AUDIO_API_ALSA: juceApi = "ALSA"; break; case AUDIO_API_CORE: juceApi = "CoreAudio"; break; case AUDIO_API_ASIO: juceApi = "ASIO"; break; case AUDIO_API_DS: juceApi = "DirectSound"; break; } if (juceApi.isEmpty()) return nullptr; AudioIODeviceType* deviceType = nullptr; for (int i=0, count=gJuceDeviceTypes.size(); i < count; ++i) { deviceType = gJuceDeviceTypes[i]; if (deviceType == nullptr || deviceType->getTypeName() == juceApi) break; } if (deviceType == nullptr) return nullptr; deviceType->scanForDevices(); return new CarlaEngineJuce(deviceType); } unsigned int CarlaEngine::getJuceApiCount() { initJuceDevices(); return static_cast(gJuceDeviceTypes.size()); } const char* CarlaEngine::getJuceApiName(const unsigned int index) { initJuceDevices(); if (static_cast(index) >= gJuceDeviceTypes.size()) return nullptr; AudioIODeviceType* const deviceType(gJuceDeviceTypes[static_cast(index)]); if (deviceType == nullptr) return nullptr; return deviceType->getTypeName().toRawUTF8(); } const char* const* CarlaEngine::getJuceApiDeviceNames(const unsigned int index) { initJuceDevices(); if (static_cast(index) >= gJuceDeviceTypes.size()) return nullptr; AudioIODeviceType* const deviceType(gJuceDeviceTypes[static_cast(index)]); if (deviceType == nullptr) return nullptr; deviceType->scanForDevices(); StringArray deviceNames(deviceType->getDeviceNames()); const int deviceNameCount(deviceNames.size()); if (deviceNameCount <= 0) return nullptr; if (gRetNames != nullptr) { for (int i=0; gRetNames[i] != nullptr; ++i) delete[] gRetNames[i]; delete[] gRetNames; } gRetNames = new const char*[deviceNameCount+1]; for (int i=0; i < deviceNameCount; ++i) gRetNames[i] = carla_strdup(deviceNames[i].toRawUTF8()); gRetNames[deviceNameCount] = nullptr; return gRetNames; } const EngineDriverDeviceInfo* CarlaEngine::getJuceDeviceInfo(const unsigned int index, const char* const deviceName) { initJuceDevices(); if (static_cast(index) >= gJuceDeviceTypes.size()) { carla_stderr("here 001"); return nullptr; } AudioIODeviceType* const deviceType(gJuceDeviceTypes[static_cast(index)]); if (deviceType == nullptr) return nullptr; deviceType->scanForDevices(); ScopedPointer device(deviceType->createDevice(deviceName, deviceName)); if (device == nullptr) return nullptr; static EngineDriverDeviceInfo devInfo = { 0x0, nullptr, nullptr }; static uint32_t dummyBufferSizes[11] = { 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 0 }; static double dummySampleRates[14] = { 22050.0, 32000.0, 44100.0, 48000.0, 88200.0, 96000.0, 176400.0, 192000.0, 0.0 }; // reset devInfo.hints = ENGINE_DRIVER_DEVICE_VARIABLE_BUFFER_SIZE | ENGINE_DRIVER_DEVICE_VARIABLE_SAMPLE_RATE; // cleanup if (devInfo.bufferSizes != nullptr && devInfo.bufferSizes != dummyBufferSizes) { delete[] devInfo.bufferSizes; devInfo.bufferSizes = nullptr; } if (devInfo.sampleRates != nullptr && devInfo.sampleRates != dummySampleRates) { delete[] devInfo.sampleRates; devInfo.sampleRates = nullptr; } if (device->hasControlPanel()) devInfo.hints |= ENGINE_DRIVER_DEVICE_HAS_CONTROL_PANEL; Array juceBufferSizes = device->getAvailableBufferSizes(); if (int bufferSizesCount = juceBufferSizes.size()) { uint32_t* const bufferSizes(new uint32_t[bufferSizesCount+1]); for (int i=0; i < bufferSizesCount; ++i) bufferSizes[i] = static_cast(juceBufferSizes[i]); bufferSizes[bufferSizesCount] = 0; devInfo.bufferSizes = bufferSizes; } else { devInfo.bufferSizes = dummyBufferSizes; } Array juceSampleRates = device->getAvailableSampleRates(); if (int sampleRatesCount = juceSampleRates.size()) { double* const sampleRates(new double[sampleRatesCount+1]); for (int i=0; i < sampleRatesCount; ++i) sampleRates[i] = juceSampleRates[i]; sampleRates[sampleRatesCount] = 0.0; devInfo.sampleRates = sampleRates; } else { devInfo.sampleRates = dummySampleRates; } return &devInfo; } // ----------------------------------------- CARLA_BACKEND_END_NAMESPACE