402 lines
12 KiB
C++
402 lines
12 KiB
C++
/*
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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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#include <asset.hpp>
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#include <library.hpp>
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#include <midi.hpp>
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#include <patch.hpp>
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#include <plugin.hpp>
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#include <random.hpp>
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#include <settings.hpp>
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#include <system.hpp>
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#include <app/Scene.hpp>
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#include <engine/Engine.hpp>
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#include <ui/common.hpp>
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#include <window/Window.hpp>
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#include <osdialog.h>
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#include "PluginContext.hpp"
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#include "extra/Mutex.hpp"
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namespace rack {
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namespace plugin {
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void initStaticPlugins();
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void destroyStaticPlugins();
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}
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}
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START_NAMESPACE_DISTRHO
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// -----------------------------------------------------------------------------------------------------------
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struct Initializer {
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Initializer()
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{
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using namespace rack;
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settings::allowCursorLock = false;
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settings::autoCheckUpdates = false;
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settings::autosaveInterval = 0;
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settings::discordUpdateActivity = false;
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settings::isPlugin = true;
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settings::skipLoadOnLaunch = true;
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settings::showTipsOnLaunch = false;
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settings::threadCount = 1;
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system::init();
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asset::init();
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logger::init();
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random::init();
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// Make system dir point to source code location. It is good enough for now
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asset::systemDir = CARDINAL_PLUGIN_SOURCE_DIR DISTRHO_OS_SEP_STR "Rack";
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// Log environment
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INFO("%s %s v%s", APP_NAME.c_str(), APP_EDITION.c_str(), APP_VERSION.c_str());
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INFO("%s", system::getOperatingSystemInfo().c_str());
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INFO("System directory: %s", asset::systemDir.c_str());
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INFO("User directory: %s", asset::userDir.c_str());
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INFO("System time: %s", string::formatTimeISO(system::getUnixTime()).c_str());
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// Check existence of the system res/ directory
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const std::string resDir = asset::system("res");
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if (! system::isDirectory(resDir))
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{
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d_stderr2("Resource directory \"%s\" does not exist.\n"
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"Make sure Cardinal was downloaded and installed correctly.", resDir.c_str());
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}
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INFO("Initializing environment");
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audio::init(); // does nothing
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midi::init(); // does nothing
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rack::audio::addDriver(0, new CardinalAudioDriver);
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plugin::initStaticPlugins();
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ui::init();
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}
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~Initializer()
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{
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using namespace rack;
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ui::destroy(); // does nothing
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INFO("Destroying plugins");
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plugin::destroyStaticPlugins();
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midi::destroy();
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audio::destroy();
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INFO("Destroying logger");
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logger::destroy();
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}
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};
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static const Initializer& getInitializerInstance()
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{
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static const Initializer init;
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return init;
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}
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// -----------------------------------------------------------------------------------------------------------
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class CardinalPlugin : public CardinalBasePlugin
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{
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CardinalPluginContext* const fContext;
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float* fAudioBufferIn;
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float* fAudioBufferOut;
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std::string fAutosavePath;
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// for base/context handling
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bool fIsActive;
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rack::audio::Device* fCurrentDevice;
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Mutex fDeviceMutex;
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struct ScopedContext {
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ScopedContext(CardinalPlugin* const plugin)
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{
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rack::contextSet(plugin->fContext);
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}
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~ScopedContext()
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{
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rack::contextSet(nullptr);
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}
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};
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public:
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CardinalPlugin()
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: CardinalBasePlugin(0, 0, 0),
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fContext(new CardinalPluginContext(this)),
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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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{
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// create unique temporary path for this instance
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try {
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char uidBuf[24];
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const std::string tmp = rack::system::getTempDirectory();
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for (int i=1;; ++i)
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{
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std::snprintf(uidBuf, sizeof(uidBuf), "Cardinal.%04d", i);
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const std::string trypath = rack::system::join(tmp, uidBuf);
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if (! rack::system::exists(trypath))
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{
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if (rack::system::createDirectories(trypath))
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fAutosavePath = trypath;
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break;
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}
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}
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} DISTRHO_SAFE_EXCEPTION("create unique temporary path");
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const ScopedContext sc(this);
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fContext->engine = new rack::engine::Engine;
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fContext->history = new rack::history::State;
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fContext->patch = new rack::patch::Manager;
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fContext->patch->autosavePath = fAutosavePath;
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fContext->patch->templatePath = CARDINAL_PLUGIN_SOURCE_DIR DISTRHO_OS_SEP_STR "template.vcv";
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fContext->patch->loadTemplate();
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fContext->engine->startFallbackThread();
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}
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~CardinalPlugin() override
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{
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{
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const ScopedContext sc(this);
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delete fContext;
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}
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if (! fAutosavePath.empty())
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rack::system::removeRecursively(fAutosavePath);
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}
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CardinalPluginContext* getRackContext() const noexcept
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{
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return fContext;
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}
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protected:
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/* --------------------------------------------------------------------------------------------------------
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* Cardinal Base things */
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bool isActive() const noexcept override
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{
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return fIsActive;
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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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return fCurrentDevice == nullptr;
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}
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void assignDevice(rack::audio::Device* const dev) noexcept override
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{
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DISTRHO_SAFE_ASSERT_RETURN(fCurrentDevice == nullptr,);
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const MutexLocker cml(fDeviceMutex);
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fCurrentDevice = dev;
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}
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bool clearDevice(rack::audio::Device* const dev) noexcept override
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{
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const MutexLocker cml(fDeviceMutex);
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if (fCurrentDevice != dev)
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return false;
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fCurrentDevice = nullptr;
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return true;
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}
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/* --------------------------------------------------------------------------------------------------------
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* Information */
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/**
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Get the plugin label.
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A plugin label follows the same rules as Parameter::symbol, with the exception that it can start with numbers.
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*/
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const char* getLabel() const override
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{
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return "Cardinal";
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}
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/**
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Get an extensive comment/description about the plugin.
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*/
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const char* getDescription() const override
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{
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return "...";
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}
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/**
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Get the plugin author/maker.
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*/
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const char* getMaker() const override
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{
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return "DISTRHO";
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}
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/**
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Get the plugin homepage.
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*/
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const char* getHomePage() const override
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{
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return "https://github.com/DISTRHO/Cardinal";
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}
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/**
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Get the plugin license name (a single line of text).
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For commercial plugins this should return some short copyright information.
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*/
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const char* getLicense() const override
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{
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return "ISC";
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}
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/**
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Get the plugin version, in hexadecimal.
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*/
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uint32_t getVersion() const override
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{
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return d_version(1, 0, 0);
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}
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/**
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Get the plugin unique Id.
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This value is used by LADSPA, DSSI and VST plugin formats.
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*/
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int64_t getUniqueId() const override
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{
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return d_cconst('d', 'C', 'd', 'n');
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}
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/* --------------------------------------------------------------------------------------------------------
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* Init */
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/* --------------------------------------------------------------------------------------------------------
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* Internal data */
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/* --------------------------------------------------------------------------------------------------------
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* Process */
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void activate() override
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{
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const uint32_t bufferSize = getBufferSize() * DISTRHO_PLUGIN_NUM_OUTPUTS;
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fAudioBufferIn = new float[bufferSize];
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fAudioBufferOut = new float[bufferSize];
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std::memset(fAudioBufferIn, 0, sizeof(float)*bufferSize);
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{
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const MutexLocker cml(fDeviceMutex);
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if (fCurrentDevice != nullptr)
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fCurrentDevice->onStartStream();
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}
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}
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void deactivate() override
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{
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{
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const MutexLocker cml(fDeviceMutex);
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if (fCurrentDevice != nullptr)
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fCurrentDevice->onStopStream();
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}
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delete[] fAudioBufferIn;
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delete[] fAudioBufferOut;
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fAudioBufferIn = fAudioBufferOut = nullptr;
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}
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/**
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Run/process function for plugins without MIDI input.
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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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{
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/*
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fContext->engine->setFrame(getTimePosition().frame);
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fContext->engine->stepBlock(frames);
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*/
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const MutexLocker cml(fDeviceMutex);
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if (fCurrentDevice == nullptr)
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{
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if (outputs[0] != inputs[0])
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std::memcpy(outputs[0], inputs[0], sizeof(float)*frames);
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if (outputs[1] != inputs[1])
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std::memcpy(outputs[1], inputs[1], sizeof(float)*frames);
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return;
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}
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for (uint32_t i=0, j=0; i<frames; ++i)
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{
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fAudioBufferIn[j++] = inputs[0][i];
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fAudioBufferIn[j++] = inputs[1][i];
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}
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std::memset(fAudioBufferOut, 0, sizeof(float)*frames*DISTRHO_PLUGIN_NUM_OUTPUTS);
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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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for (uint32_t i=0, j=0; i<frames; ++i)
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{
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outputs[0][i] = fAudioBufferOut[j++];
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outputs[1][i] = fAudioBufferOut[j++];
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}
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}
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/*
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void sampleRateChanged(const double newSampleRate) override
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{
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fContext->engine->setSampleRate(newSampleRate);
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}
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*/
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// -------------------------------------------------------------------------------------------------------
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private:
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/**
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Set our plugin class as non-copyable and add a leak detector just in case.
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*/
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DISTRHO_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CardinalPlugin)
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};
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CardinalPluginContext* getRackContextFromPlugin(void* const ptr)
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{
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return static_cast<CardinalPlugin*>(ptr)->getRackContext();
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}
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/* ------------------------------------------------------------------------------------------------------------
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* Plugin entry point, called by DPF to create a new plugin instance. */
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Plugin* createPlugin()
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{
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getInitializerInstance();
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return new CardinalPlugin();
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}
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// -----------------------------------------------------------------------------------------------------------
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END_NAMESPACE_DISTRHO
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