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Diffstat (limited to 'PROJECT_CONTEXT.md')
| -rw-r--r-- | PROJECT_CONTEXT.md | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/PROJECT_CONTEXT.md b/PROJECT_CONTEXT.md index e0a8dca..88dfa2a 100644 --- a/PROJECT_CONTEXT.md +++ b/PROJECT_CONTEXT.md @@ -16,6 +16,7 @@ Audio: - Variable tempo system with music time abstraction - Event-based pattern triggering for dynamic tempo scaling - Modifiable Loops and Patterns, w/ script to generate them (like a Tracker) +- Unified AudioEngine for lifecycle management (eliminates initialization fragility) Constraints: - Size-sensitive @@ -51,6 +52,9 @@ Style: - **Task #51: Tracker Timing Verification System**: Created robust audio testing infrastructure with mock backend abstraction. Implemented `AudioBackend` interface separating synthesis from output, `MiniaudioBackend` for production, and `MockAudioBackend` for testing. Added event recording with precise timestamp tracking (32kHz sample rate). Created comprehensive test suite (`test_tracker_timing.cc`) that **verified simultaneous pattern triggers have 0.000ms delta** (perfect synchronization). All test infrastructure under `#if !defined(STRIP_ALL)` for zero production impact. 17/17 tests passing. +#### Milestone: Audio Lifecycle Refactor (February 5, 2026) +- **Task #56: AudioEngine Implementation**: Completed 4-phase refactor to eliminate fragile initialization order dependency between synth and tracker. **Phase 1 (Design & Prototype)**: Created `AudioEngine` class and `SpectrogramResourceManager` for unified lifecycle management with lazy loading. **Phase 2 (Test Migration)**: Migrated all tracker tests to use AudioEngine (test_tracker.cc, test_tracker_timing.cc, test_variable_tempo.cc, test_wav_dump.cc). **Phase 3 (Production Integration)**: Updated main.cc to use AudioEngine, fixed pre-existing procedural texture crash (flash_cube_effect.cc, hybrid_3d_effect.cc). **Phase 4 (Cleanup & Documentation)**: Removed backwards compatibility (synth_init from audio_init), updated HOWTO.md and CONTRIBUTING.md with usage patterns. Result: All 20 tests pass, binary size impact <500 bytes, initialization fragility eliminated. + - **Task #50: WGSL Modularization**: Updated `ShaderComposer` to support recursive `#include` directives, refactored the entire shader library into granular snippets (shapes, utils, lighting), and updated the 3D renderer to use this modular system. This resolved macOS shader compilation issues and significantly improved shader maintainability. - **Task #48: Improve Audio Coverage**: Achieved 93% coverage for `src/audio/` by adding dedicated tests for DCT transforms, procedural generation, and synthesis rendering. - **Task #47: Improve Asset Manager Coverage**: Increased `asset_manager.cc` coverage to 88% by testing runtime error paths (unknown functions, generation failure). |