55b5f89ac5
8-voice polyphonic granular synth (VST3/AU/LV2) with: - 128 grain pool per voice, Hann windowing, linear interpolation - Root note selector, sample rate correction, sustain pedal (CC64) - Scatter controls, direction modes (Fwd/Rev/PingPong), freeze - ADSR envelope, global filter (LP/HP/BP), reverb - Waveform display with grain visualization - Drag & drop sample loading, full state save/restore - CI/CD for Windows/macOS/Linux Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
53 sor
1.8 KiB
C++
53 sor
1.8 KiB
C++
#pragma once
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#include <JuceHeader.h>
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#include "Grain.h"
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class GrainCloud
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{
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public:
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static constexpr int maxGrains = 128;
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enum class Direction { Forward, Reverse, PingPong };
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GrainCloud();
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void prepare (double sampleRate);
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void processBlock (juce::AudioBuffer<float>& output, int numSamples,
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const juce::AudioBuffer<float>& sourceBuffer);
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void reset();
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// Parameters (atomic — GUI writes, audio reads)
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std::atomic<float> position { 0.5f }; // 0-1
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std::atomic<float> grainSizeMs { 100.0f }; // 10-500
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std::atomic<float> density { 10.0f }; // 1-100 grains/sec
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std::atomic<float> pitchSemitones { 0.0f }; // -24..+24
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std::atomic<float> pan { 0.0f }; // -1..+1
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std::atomic<float> posScatter { 0.0f }; // 0-1
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std::atomic<float> sizeScatter { 0.0f }; // 0-1
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std::atomic<float> pitchScatter { 0.0f }; // 0-1
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std::atomic<float> panScatter { 0.0f }; // 0-1
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std::atomic<int> direction { 0 }; // 0=Fwd, 1=Rev, 2=PingPong
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std::atomic<bool> freeze { false };
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// Extra pitch offset from MIDI note
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float midiPitchOffset = 0.0f;
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// Sample rate correction: sourceSampleRate / dawSampleRate
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float sampleRateRatio = 1.0f;
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// For visualization — snapshot of active grains
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struct GrainInfo { int startSample; int lengthSamples; float progress; };
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std::array<GrainInfo, maxGrains> getActiveGrainInfo() const;
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int getActiveGrainCount() const;
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private:
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double currentSampleRate = 44100.0;
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std::array<Grain, maxGrains> grains;
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GrainWindow window;
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int samplesUntilNextGrain = 0;
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juce::Random rng;
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void spawnGrain (const juce::AudioBuffer<float>& sourceBuffer);
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float readSampleInterpolated (const juce::AudioBuffer<float>& buffer, double position) const;
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};
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