Add MIDI input driver
Signed-off-by: falkTX <falktx@falktx.com>
This commit is contained in:
falkTX
parent
f178251d79
commit
70d2f63acc
4 changed files with 366 additions and 127 deletions
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@ -35,8 +35,11 @@
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# undef DEBUG
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#endif
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#include <atomic>
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#include <list>
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#include "DistrhoPluginUtils.hpp"
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#include "PluginContext.hpp"
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#include "PluginDriver.hpp"
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#include "WindowParameters.hpp"
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#include "extra/Base64.hpp"
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#include "extra/SharedResourcePointer.hpp"
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@ -119,6 +122,9 @@ struct Initializer {
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INFO("Initializing audio driver");
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rack::audio::addDriver(0, new CardinalAudioDriver);
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INFO("Initializing midi driver");
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rack::midi::addDriver(0, new CardinalMidiDriver);
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INFO("Initializing plugins");
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plugin::initStaticPlugins();
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}
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@ -170,8 +176,11 @@ class CardinalPlugin : public CardinalBasePlugin
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// for base/context handling
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bool fIsActive;
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std::atomic<bool> fIsProcessing;
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rack::audio::Device* fCurrentDevice;
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Mutex fDeviceMutex;
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std::list<CardinalMidiInputDevice*> fMidiInputs;
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volatile pthread_t fProcessThread;
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float fWindowParameters[kWindowParameterCount];
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@ -182,7 +191,13 @@ public:
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fAudioBufferIn(nullptr),
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fAudioBufferOut(nullptr),
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fIsActive(false),
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fCurrentDevice(nullptr)
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fIsProcessing(false),
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fCurrentDevice(nullptr),
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#ifdef PTW32_DLLPORT
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fProcessThread({nullptr, 0})
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#else
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fProcessThread(0)
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#endif
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{
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fWindowParameters[kWindowParameterCableOpacity] = 50.0f;
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fWindowParameters[kWindowParameterCableTension] = 50.0f;
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@ -260,6 +275,11 @@ protected:
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return fIsActive;
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}
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bool isProcessing() const noexcept override
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{
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return fIsProcessing.load() && pthread_equal(fProcessThread, pthread_self() != 0);
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}
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bool canAssignDevice() const noexcept override
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{
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const MutexLocker cml(fDeviceMutex);
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@ -285,6 +305,19 @@ protected:
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return true;
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}
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void addMidiInput(CardinalMidiInputDevice* const dev) override
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{
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const MutexLocker cml(fDeviceMutex);
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fMidiInputs.push_back(dev);
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}
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void removeMidiInput(CardinalMidiInputDevice* const dev) override
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{
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const MutexLocker cml(fDeviceMutex);
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}
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/* --------------------------------------------------------------------------------------------------------
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* Information */
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@ -498,13 +531,16 @@ protected:
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fAudioBufferIn = fAudioBufferOut = nullptr;
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}
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void run(const float** const inputs, float** const outputs, const uint32_t frames) override
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void run(const float** const inputs, float** const outputs, const uint32_t frames,
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const MidiEvent* const midiEvents, const uint32_t midiEventCount) override
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{
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/*
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context->engine->setFrame(getTimePosition().frame);
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context->engine->stepBlock(frames);
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*/
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fProcessThread = pthread_self();
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const MutexLocker cml(fDeviceMutex);
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// const MutexTryLocker cmtl(fPatchMutex);
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@ -523,8 +559,14 @@ protected:
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std::memset(fAudioBufferOut, 0, sizeof(float)*frames*DISTRHO_PLUGIN_NUM_OUTPUTS);
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fIsProcessing.store(1);
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for (CardinalMidiInputDevice* dev : fMidiInputs)
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dev->handleMessagesFromHost(midiEvents, midiEventCount);
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fCurrentDevice->processBuffer(fAudioBufferIn, DISTRHO_PLUGIN_NUM_INPUTS,
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fAudioBufferOut, DISTRHO_PLUGIN_NUM_OUTPUTS, frames);
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fIsProcessing.store(0);
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for (uint32_t i=0, j=0; i<frames; ++i)
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{
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@ -25,6 +25,8 @@
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#define DISTRHO_PLUGIN_HAS_UI 1
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#define DISTRHO_PLUGIN_NUM_INPUTS 2
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#define DISTRHO_PLUGIN_NUM_OUTPUTS 2
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#define DISTRHO_PLUGIN_WANT_MIDI_INPUT 1
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#define DISTRHO_PLUGIN_WANT_MIDI_OUTPUT 1
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#define DISTRHO_PLUGIN_WANT_FULL_STATE 1
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#define DISTRHO_PLUGIN_WANT_STATE 1
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#define DISTRHO_PLUGIN_WANT_TIMEPOS 1
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@ -19,6 +19,7 @@
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#include <audio.hpp>
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#include <context.hpp>
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#include <midi.hpp>
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#ifdef NDEBUG
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# undef DEBUG
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@ -54,6 +55,9 @@ struct CardinalPluginContext : rack::Context {
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// -----------------------------------------------------------------------------------------------------------
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struct CardinalMidiInputDevice;
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struct CardinalMidiOutputDevice;
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class CardinalBasePlugin : public Plugin {
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public:
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CardinalPluginContext* const context;
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@ -63,9 +67,12 @@ public:
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context(new CardinalPluginContext(this)) {}
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~CardinalBasePlugin() override {}
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virtual bool isActive() const noexcept = 0;
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virtual bool isProcessing() const noexcept = 0;
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virtual bool canAssignDevice() const noexcept = 0;
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virtual void assignDevice(rack::audio::Device* dev) noexcept = 0;
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virtual bool clearDevice(rack::audio::Device* dev) noexcept = 0;
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virtual void addMidiInput(CardinalMidiInputDevice* dev) = 0;
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virtual void removeMidiInput(CardinalMidiInputDevice* dev) = 0;
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protected:
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void bufferSizeChanged(const uint32_t newBufferSize) override
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@ -82,128 +89,4 @@ protected:
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// -----------------------------------------------------------------------------------------------------------
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struct CardinalAudioDevice : rack::audio::Device {
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CardinalBasePlugin* const fPlugin;
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CardinalAudioDevice(CardinalBasePlugin* const plugin)
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: fPlugin(plugin) {}
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std::string getName() override
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{
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return "Cardinal";
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}
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int getNumInputs() override
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{
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return DISTRHO_PLUGIN_NUM_INPUTS;
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}
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int getNumOutputs() override
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{
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return DISTRHO_PLUGIN_NUM_OUTPUTS;
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}
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int getBlockSize() override
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{
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return fPlugin->getBufferSize();
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}
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float getSampleRate() override
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{
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return fPlugin->getSampleRate();
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}
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std::set<int> getBlockSizes() override
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{
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return std::set<int>({ getBlockSize() });
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}
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std::set<float> getSampleRates() override
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{
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return std::set<float>({ getSampleRate() });
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}
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void setBlockSize(int) override {}
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void setSampleRate(float) override {}
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};
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// -----------------------------------------------------------------------------------------------------------
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struct CardinalAudioDriver : rack::audio::Driver {
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CardinalAudioDriver() {}
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std::string getName() override
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{
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return "Plugin Driver";
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}
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std::vector<int> getDeviceIds() override
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{
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return std::vector<int>({ 0 });
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}
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int getDefaultDeviceId() override
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{
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return 0;
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}
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std::string getDeviceName(int) override
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{
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return "Plugin Device";
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}
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int getDeviceNumInputs(int) override
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{
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return DISTRHO_PLUGIN_NUM_INPUTS;
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}
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int getDeviceNumOutputs(int) override
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{
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return DISTRHO_PLUGIN_NUM_OUTPUTS;
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}
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rack::audio::Device* subscribe(int, rack::audio::Port* const port) override
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{
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CardinalPluginContext* const pluginContext = reinterpret_cast<CardinalPluginContext*>(port->context);
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DISTRHO_SAFE_ASSERT_RETURN(pluginContext != nullptr, nullptr);
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CardinalBasePlugin* const plugin = reinterpret_cast<CardinalBasePlugin*>(pluginContext->plugin);
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DISTRHO_SAFE_ASSERT_RETURN(plugin != nullptr, nullptr);
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if (! plugin->canAssignDevice())
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throw rack::Exception("Plugin driver only allows one audio device to be used simultaneously");
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CardinalAudioDevice* const device = new CardinalAudioDevice(plugin);
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device->subscribe(port);
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if (plugin->isActive())
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device->onStartStream();
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plugin->assignDevice(device);
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return device;
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}
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void unsubscribe(int, rack::audio::Port* const port) override
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{
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CardinalAudioDevice* const device = reinterpret_cast<CardinalAudioDevice*>(port->device);
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DISTRHO_SAFE_ASSERT_RETURN(device != nullptr,);
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CardinalPluginContext* const pluginContext = reinterpret_cast<CardinalPluginContext*>(port->context);
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DISTRHO_SAFE_ASSERT_RETURN(pluginContext != nullptr,);
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CardinalBasePlugin* const plugin = reinterpret_cast<CardinalBasePlugin*>(pluginContext->plugin);
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DISTRHO_SAFE_ASSERT_RETURN(plugin != nullptr,);
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if (plugin->clearDevice(device))
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{
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device->onStopStream();
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device->unsubscribe(port);
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delete device;
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}
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}
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};
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// -----------------------------------------------------------------------------------------------------------
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END_NAMESPACE_DISTRHO
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312
src/PluginDriver.hpp
Normal file
312
src/PluginDriver.hpp
Normal file
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@ -0,0 +1,312 @@
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/*
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* DISTRHO Cardinal Plugin
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* Copyright (C) 2021 Filipe Coelho <falktx@falktx.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 3 of
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* the License, or any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* For a full copy of the GNU General Public License see the LICENSE file.
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*/
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#pragma once
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#include "PluginContext.hpp"
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START_NAMESPACE_DISTRHO
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// -----------------------------------------------------------------------------------------------------------
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struct CardinalAudioDevice : rack::audio::Device
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{
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CardinalBasePlugin* const fPlugin;
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CardinalAudioDevice(CardinalBasePlugin* const plugin)
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: fPlugin(plugin) {}
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std::string getName() override
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{
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return "Cardinal";
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}
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int getNumInputs() override
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{
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return DISTRHO_PLUGIN_NUM_INPUTS;
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}
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int getNumOutputs() override
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{
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return DISTRHO_PLUGIN_NUM_OUTPUTS;
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}
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int getBlockSize() override
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{
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return fPlugin->getBufferSize();
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}
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float getSampleRate() override
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{
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return fPlugin->getSampleRate();
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}
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std::set<int> getBlockSizes() override
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{
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return std::set<int>({ getBlockSize() });
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}
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std::set<float> getSampleRates() override
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{
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return std::set<float>({ getSampleRate() });
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}
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void setBlockSize(int) override {}
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void setSampleRate(float) override {}
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};
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// -----------------------------------------------------------------------------------------------------------
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struct CardinalAudioDriver : rack::audio::Driver
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{
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CardinalAudioDriver() {}
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std::string getName() override
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{
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return "Plugin Driver";
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}
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std::vector<int> getDeviceIds() override
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{
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return std::vector<int>({ 0 });
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}
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int getDefaultDeviceId() override
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{
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return 0;
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}
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std::string getDeviceName(int) override
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{
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return "Plugin Device";
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}
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int getDeviceNumInputs(int) override
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{
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return DISTRHO_PLUGIN_NUM_INPUTS;
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}
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int getDeviceNumOutputs(int) override
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{
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return DISTRHO_PLUGIN_NUM_OUTPUTS;
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}
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rack::audio::Device* subscribe(int, rack::audio::Port* const port) override
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{
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CardinalPluginContext* const pluginContext = reinterpret_cast<CardinalPluginContext*>(port->context);
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DISTRHO_SAFE_ASSERT_RETURN(pluginContext != nullptr, nullptr);
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CardinalBasePlugin* const plugin = reinterpret_cast<CardinalBasePlugin*>(pluginContext->plugin);
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DISTRHO_SAFE_ASSERT_RETURN(plugin != nullptr, nullptr);
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if (! plugin->canAssignDevice())
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throw rack::Exception("Plugin driver only allows one audio device to be used simultaneously");
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CardinalAudioDevice* const device = new CardinalAudioDevice(plugin);
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device->subscribe(port);
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if (plugin->isActive())
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device->onStartStream();
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plugin->assignDevice(device);
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return device;
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}
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void unsubscribe(int, rack::audio::Port* const port) override
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{
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CardinalAudioDevice* const device = reinterpret_cast<CardinalAudioDevice*>(port->device);
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DISTRHO_SAFE_ASSERT_RETURN(device != nullptr,);
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CardinalPluginContext* const pluginContext = reinterpret_cast<CardinalPluginContext*>(port->context);
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DISTRHO_SAFE_ASSERT_RETURN(pluginContext != nullptr,);
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CardinalBasePlugin* const plugin = reinterpret_cast<CardinalBasePlugin*>(pluginContext->plugin);
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DISTRHO_SAFE_ASSERT_RETURN(plugin != nullptr,);
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if (plugin->clearDevice(device))
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{
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device->onStopStream();
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device->unsubscribe(port);
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delete device;
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}
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}
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};
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// -----------------------------------------------------------------------------------------------------------
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struct CardinalMidiInputDevice : rack::midi::InputDevice
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{
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CardinalBasePlugin* const fPlugin;
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rack::midi::Message msg;
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CardinalMidiInputDevice(CardinalBasePlugin* const plugin)
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: fPlugin(plugin)
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{
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msg.bytes.reserve(0xff);
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}
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std::string getName() override
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{
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return "Cardinal";
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}
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void handleMessagesFromHost(const MidiEvent* const midiEvents, const uint32_t midiEventCount)
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{
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if (subscribed.size() == 0)
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return;
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for (uint32_t i=0; i<midiEventCount; ++i)
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{
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const MidiEvent& midiEvent(midiEvents[i]);
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const uint8_t* data;
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if (midiEvent.size > MidiEvent::kDataSize)
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{
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data = midiEvent.dataExt;
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msg.bytes.reserve(midiEvent.size);
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}
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else
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{
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data = midiEvent.data;
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}
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msg.frame = midiEvent.frame;
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std::memcpy(msg.bytes.data(), data, midiEvent.size);
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onMessage(msg);
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}
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}
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};
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// -----------------------------------------------------------------------------------------------------------
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struct CardinalMidiOutputDevice : rack::midi::OutputDevice
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{
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CardinalBasePlugin* const fPlugin;
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CardinalMidiOutputDevice(CardinalBasePlugin* const plugin)
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: fPlugin(plugin) {}
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std::string getName() override
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{
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return "Cardinal";
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}
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void sendMessage(const rack::midi::Message& message) override
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{
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}
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};
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// -----------------------------------------------------------------------------------------------------------
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struct CardinalMidiDriver : rack::midi::Driver
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{
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CardinalMidiDriver() {}
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std::string getName() override
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{
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return "Plugin Driver";
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}
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std::vector<int> getInputDeviceIds() override
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{
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return std::vector<int>({ 0 });
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}
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std::vector<int> getOutputDeviceIds() override
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{
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return std::vector<int>({ 0 });
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}
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int getDefaultInputDeviceId() override
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{
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return 0;
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}
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int getDefaultOutputDeviceId() override
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{
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return 0;
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}
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std::string getInputDeviceName(int) override
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{
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return "Plugin Device";
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}
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std::string getOutputDeviceName(int) override
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{
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return "Plugin Device";
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}
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rack::midi::InputDevice* subscribeInput(int, rack::midi::Input* const input) override
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{
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||||
CardinalPluginContext* const pluginContext = reinterpret_cast<CardinalPluginContext*>(input->context);
|
||||
DISTRHO_SAFE_ASSERT_RETURN(pluginContext != nullptr, nullptr);
|
||||
|
||||
CardinalBasePlugin* const plugin = reinterpret_cast<CardinalBasePlugin*>(pluginContext->plugin);
|
||||
DISTRHO_SAFE_ASSERT_RETURN(plugin != nullptr, nullptr);
|
||||
|
||||
CardinalMidiInputDevice* const device = new CardinalMidiInputDevice(plugin);
|
||||
device->subscribe(input);
|
||||
|
||||
plugin->addMidiInput(device);
|
||||
return device;
|
||||
}
|
||||
|
||||
rack::midi::OutputDevice* subscribeOutput(int, rack::midi::Output* const output) override
|
||||
{
|
||||
CardinalPluginContext* const pluginContext = reinterpret_cast<CardinalPluginContext*>(output->context);
|
||||
DISTRHO_SAFE_ASSERT_RETURN(pluginContext != nullptr, nullptr);
|
||||
|
||||
CardinalBasePlugin* const plugin = reinterpret_cast<CardinalBasePlugin*>(pluginContext->plugin);
|
||||
DISTRHO_SAFE_ASSERT_RETURN(plugin != nullptr, nullptr);
|
||||
|
||||
CardinalMidiOutputDevice* const device = new CardinalMidiOutputDevice(plugin);
|
||||
device->subscribe(output);
|
||||
|
||||
return device;
|
||||
}
|
||||
|
||||
void unsubscribeInput(int, rack::midi::Input* const input) override
|
||||
{
|
||||
CardinalMidiInputDevice* const device = reinterpret_cast<CardinalMidiInputDevice*>(input->device);
|
||||
DISTRHO_SAFE_ASSERT_RETURN(device != nullptr,);
|
||||
|
||||
CardinalPluginContext* const pluginContext = reinterpret_cast<CardinalPluginContext*>(input->context);
|
||||
DISTRHO_SAFE_ASSERT_RETURN(pluginContext != nullptr,);
|
||||
|
||||
CardinalBasePlugin* const plugin = reinterpret_cast<CardinalBasePlugin*>(pluginContext->plugin);
|
||||
DISTRHO_SAFE_ASSERT_RETURN(plugin != nullptr,);
|
||||
|
||||
plugin->removeMidiInput(device);
|
||||
device->unsubscribe(input);
|
||||
delete device;
|
||||
}
|
||||
|
||||
void unsubscribeOutput(int, rack::midi::Output* const output) override
|
||||
{
|
||||
CardinalMidiOutputDevice* const device = reinterpret_cast<CardinalMidiOutputDevice*>(output->device);
|
||||
DISTRHO_SAFE_ASSERT_RETURN(device != nullptr,);
|
||||
|
||||
device->unsubscribe(output);
|
||||
delete device;
|
||||
}
|
||||
};
|
||||
|
||||
// -----------------------------------------------------------------------------------------------------------
|
||||
|
||||
END_NAMESPACE_DISTRHO
|
||||
Loading…
Add table
Add a link
Reference in a new issue