Add new plugin-accessible plugincontext.hpp

Signed-off-by: falkTX <falktx@falktx.com>

include/plugincontext.hpp

@@ -0,0 +1,106 @@
+/*
+ * DISTRHO Cardinal Plugin
+ * Copyright (C) 2021-2024 Filipe Coelho <falktx@falktx.com>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#pragma once
+
+#ifdef BUILDING_PLUGIN_MODULES
+#include "rack.hpp"
+#endif
+
+namespace rack {
+namespace midi {
+struct Message;
+}
+}
+
+// --------------------------------------------------------------------------------------------------------------------
+// Base DISTRHO classes
+
+#ifndef DISTRHO_DETAILS_HPP_INCLUDED
+
+namespace CardinalDISTRHO {
+
+class Plugin;
+class UI;
+
+struct MidiEvent {
+    static const uint32_t kDataSize = 4;
+    uint32_t frame;
+    uint32_t size;
+    uint8_t data[kDataSize];
+    const uint8_t* dataExt;
+};
+
+}
+
+#endif
+
+// --------------------------------------------------------------------------------------------------------------------
+// Base DGL classes
+
+#ifndef DGL_BASE_HPP_INCLUDED
+
+namespace CardinalDGL {
+
+class TopLevelWidget;
+template <class BaseWidget> class NanoBaseWidget;
+typedef NanoBaseWidget<TopLevelWidget> NanoTopLevelWidget;
+
+struct IdleCallback {
+    virtual ~IdleCallback() {}
+    virtual void idleCallback() = 0;
+};
+
+}
+
+#endif
+
+using CardinalDGL::IdleCallback;
+
+// --------------------------------------------------------------------------------------------------------------------
+// Cardinal specific context
+
+static constexpr const uint32_t kModuleParameterCount = 24;
+
+enum CardinalVariant {
+    kCardinalVariantMain,
+    kCardinalVariantMini,
+    kCardinalVariantFX,
+    kCardinalVariantNative,
+    kCardinalVariantSynth,
+};
+
+struct CardinalPluginContext : rack::Context {
+    uint32_t bufferSize, processCounter;
+    double sampleRate;
+    float parameters[kModuleParameterCount];
+    CardinalVariant variant;
+    bool bypassed, playing, reset, bbtValid;
+    int32_t bar, beat, beatsPerBar, beatType;
+    uint64_t frame;
+    double barStartTick, beatsPerMinute;
+    double tick, tickClock, ticksPerBeat, ticksPerClock, ticksPerFrame;
+    uintptr_t nativeWindowId;
+    const float* const* dataIns;
+    float** dataOuts;
+    const CardinalDISTRHO::MidiEvent* midiEvents;
+    uint32_t midiEventCount;
+    CardinalDISTRHO::Plugin* const plugin;
+    CardinalDGL::NanoTopLevelWidget* tlw;
+    CardinalDISTRHO::UI* ui;
+    CardinalPluginContext(CardinalDISTRHO::Plugin* const p);
+    void writeMidiMessage(const rack::midi::Message& message, uint8_t channel);
+#ifndef HEADLESS
+    bool addIdleCallback(IdleCallback* cb) const;
+    void removeIdleCallback(IdleCallback* cb) const;
+#endif
+};
+
+#ifndef HEADLESS
+void handleHostParameterDrag(const CardinalPluginContext* pcontext, uint index, bool started);
+#endif
+
+// --------------------------------------------------------------------------------------------------------------------