locpham
c3368d0a91
- native_bridge/: InstrumentEngineManager multi-channel, sample-accurate, CC/program/pitchbend, transport, Vst3Instrument stub (HAVE_VST3SDK) - src-tauri: shm.rs, bridge spawn + audio pump + health monitor, open_vst_gui, externalBin, commands - app: UnifiedMidiRouter, NativeBridgeService, bridgeAudioNode, audioRoutingEngine, Plugin Manager UI, Bridge/WASM indicator, set_position sync - build: 3 ps1 (force-added, build/ ignored), verify_bundle --check-bridge, CI workflow - docs: TASKS.md, TEST_NOTES.md (Windows verify checklist), install/report updates
49 lines
2.0 KiB
C++
49 lines
2.0 KiB
C++
// native_bridge/include/SharedMemoryIPC.h
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#pragma once
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#include <cstdint>
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#define AUDIO_BLOCK_SIZE 256
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// WARNING: volatile is NOT a sync primitive. Real impl should use an
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// interlocked/index-flag pair or a Win32 event (SetEvent) signalled by the
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// writer. This struct follows the spec layout so Rust/JS mapping stays in sync.
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struct SharedAudioBufferIPC {
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// Synchronization Flags
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volatile uint32_t clientReadIndex;
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volatile uint32_t bridgeWriteIndex;
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// PCM Float32 Audio Buffers
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float masterLeft[AUDIO_BLOCK_SIZE];
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float masterRight[AUDIO_BLOCK_SIZE];
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// Latency probe: bridge stamps every rendered block (QueryPerformanceCounter)
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volatile uint64_t blockTimestamp;
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// MIDI Event Exchange Queue
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struct MidiEventIPC {
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uint8_t command; // 0x9 note on / 0x8 note off / 0xB CC / 0xC program / 0xE pitch bend
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uint8_t channel;
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uint8_t pitch; // note number (0x9/0x8) or CC number (0xB)
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uint8_t velocity; // 0-127 (0x9 + vel=0 == note off)
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uint8_t data2; // CC value / program number / PB LSB
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uint8_t data3; // PB MSB (0xE only)
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uint8_t reserved[2]; // explicit padding — keeps C/Rust layout stable
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uint32_t sampleOffset;
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} midiQueue[64];
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volatile uint32_t midiQueueCount;
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// Transport / Control (added vs spec: Stop/Play flush, instrument switch)
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struct ControlEventIPC {
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uint32_t type; // 0 = NONE, 1 = PANIC/ALL_NOTES_OFF, 2 = LOAD_INSTRUMENT,
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// 3 = TRANSPORT, 4 = OPEN_GUI
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uint32_t arg0; // LOAD: instrument type (InstrumentType);
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// TRANSPORT: 0=STOP, 1=PLAY, 2=SET_POSITION
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uint32_t arg1; // LOAD: string length (bytes) of path;
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// TRANSPORT: playheadSamples (for timeline sync)
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uint32_t channel; // LOAD: MIDI channel to assign instrument to (A10)
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char arg2[1024]; // LOAD: UTF-8 path
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} controlQueue[8];
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volatile uint32_t controlQueueCount;
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};
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