Initial release — InstaGrain granular synthesizer v1.0

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>

CMakeLists.txt

@@ -0,0 +1,65 @@
+cmake_minimum_required(VERSION 3.22)
+project(InstaGrain VERSION 1.0.0)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../JUCE ${CMAKE_CURRENT_BINARY_DIR}/JUCE)
+
+juce_add_plugin(InstaGrain
+    COMPANY_NAME "InstaGrain"
+    IS_SYNTH TRUE
+    NEEDS_MIDI_INPUT TRUE
+    NEEDS_MIDI_OUTPUT FALSE
+    PLUGIN_MANUFACTURER_CODE Inst
+    PLUGIN_CODE Igrn
+    FORMATS VST3 AU LV2
+    LV2URI "https://github.com/hariel1985/InstaGrain"
+    PRODUCT_NAME "InstaGrain"
+    COPY_PLUGIN_AFTER_BUILD FALSE
+)
+
+juce_generate_juce_header(InstaGrain)
+
+juce_add_binary_data(InstaGrainData SOURCES
+    Resources/Rajdhani-Regular.ttf
+    Resources/Rajdhani-Medium.ttf
+    Resources/Rajdhani-Bold.ttf
+)
+
+target_sources(InstaGrain
+    PRIVATE
+        Source/PluginProcessor.cpp
+        Source/PluginEditor.cpp
+        Source/LookAndFeel.cpp
+        Source/GrainCloud.cpp
+        Source/GrainVoice.cpp
+        Source/GrainEngine.cpp
+        Source/WaveformDisplay.cpp
+        Source/GrainControlPanel.cpp
+        Source/ScatterPanel.cpp
+        Source/EnvelopePanel.cpp
+        Source/EffectsPanel.cpp
+        Source/MasterPanel.cpp
+)
+
+target_compile_definitions(InstaGrain
+    PUBLIC
+        JUCE_WEB_BROWSER=0
+        JUCE_USE_CURL=0
+        JUCE_VST3_CAN_REPLACE_VST2=0
+)
+
+target_link_libraries(InstaGrain
+    PRIVATE
+        InstaGrainData
+        juce::juce_audio_basics
+        juce::juce_audio_devices
+        juce::juce_audio_formats
+        juce::juce_audio_processors
+        juce::juce_audio_utils
+        juce::juce_dsp
+    PUBLIC
+        juce::juce_recommended_config_flags
+        juce::juce_recommended_warning_flags
+)