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Bugs fixed:
- Effects within sequences now stack vertically instead of overlapping
- Sequence height now dynamically adjusts based on effect count
- Effects positioned with proper 40px vertical spacing
Features added:
- Seconds/Beats toggle checkbox with BPM display
- Time markers show beats (0b, 1b, etc.) when in beat mode
- Snap-to-beat when dragging in beat mode
- Effect/sequence time labels show beats when enabled
- BPM tracking from loaded demo.seq file
The effect stacking bug was caused by all effects using the same vertical
position formula (seqIndex * 80 + 25). Fixed by adding effectIndex * 40
to stack effects properly. Sequences now grow in height to accommodate
multiple stacked effects.
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Documentation improvements:
1. Added reference to doc/SEQUENCE.md in README
2. Added comment in parser pointing to format spec
3. Updated README with complete format examples including:
- Priority modifiers (+, =, -)
- Time notation (beats vs seconds)
- Optional sequence names
- BPM declaration
New feature task (Phase 1):
Task 1.2b: Priority Editing UI (HIGH PRIORITY, 6-8h)
- Edit sequence priority (0-9 for scene, 10+ for post-processing)
- Toggle effect priority modifiers (+/=/-)
- Visual priority indicators and z-order visualization
- Computed priority display
- Priority conflict warnings
Implementation details:
- Radio buttons for priority modifiers
- Up/down buttons for sequence priority
- Color-coded priority levels
- Priority badges on timeline items
- Automatic priority recalculation
Rationale:
Priority control is essential for proper render order and z-stacking.
Currently, priorities are shown but not easily editable. This task
makes priority a first-class editable property.
Updated effort estimates:
- Phase 1: 28-36 hours (was 22-28)
- Total: ~117-161 hours for full feature set
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Fixed critical parsing bugs that prevented loading real demo.seq files.
Issues fixed:
1. Beat notation support: Parse '0b', '4b' as beats and convert to seconds
- Added BPM parsing from '# BPM 120' comments
- Helper function: parseTime() converts beats to seconds using BPM
2. Priority modifiers: Handle '+', '=', '-' modifiers correctly
- '+' increments priority
- '=' keeps same priority
- '-' decrements priority (for background effects)
- Store both absolute priority and modifier for round-trip
3. Inline comments: Strip comments from end of lines with '#'
- Effect lines like 'EFFECT + FlashEffect 0.0 1.0 # comment' now parse
4. Sequence names: Parse optional sequence names in quotes
- Format: SEQUENCE <time> <priority> "name" [end]
5. Updated serializer: Output correct format with modifiers
- Generate 'EFFECT + ClassName ...' instead of 'EFFECT ClassName ... priority'
- Preserve BPM comment in output
- Preserve sequence names
Parser now correctly handles:
- SEQUENCE 0b 0 → Start at beat 0, priority 0
- SEQUENCE 4b 0 → Start at beat 4 (2 seconds @ 120 BPM)
- EFFECT - FlashCubeEffect .2 3 → Background effect (priority -1)
- EFFECT + FlashEffect 0.0 1. → Normal effect (priority 0)
- EFFECT = GaussianBlur 0 8 → Same priority as previous
Testing: Load assets/demo.seq should now work correctly.
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Created detailed roadmap for timeline editor future development.
Phase 1: Core Editing Features (HIGH PRIORITY)
- Snap-to-beat: Musical timing with BPM-based grid (4-6h)
- Create new effects: Modal dialog for adding effects (6-8h)
- Overlap detection: Visual warnings for conflicts (8-10h)
Total: 22-28 hours
Phase 2: Productivity Enhancements (MEDIUM PRIORITY)
- Undo/redo system with command pattern (10-12h)
- Multi-select & batch operations (12-15h)
- Copy/paste & duplication (6-8h)
- Keyboard shortcuts & navigation (4-6h)
Total: 38-51 hours
Phase 3: Advanced Features (LOW PRIORITY)
- Timeline playback indicator (4-6h)
- Templates & presets (8-10h)
- Search & filter (6-8h)
- Timeline comparison view (15-20h)
- Export formats (JSON, CSV, MD) (6-8h)
- Auto-save & local storage (4-6h)
Total: 51-74 hours
Implementation Details:
- Technical approach for each feature
- UI mockups and code snippets
- Effort estimates and dependencies
- Success metrics and design principles
Priority recommendation:
1. Snap-to-beat (makes musical timing easy)
2. Create effects (essential for productivity)
3. Overlap detection (prevents rendering bugs)
Total effort for full feature set: ~110-150 hours
The roadmap provides clear guidance for incremental development
while keeping the tool simple and self-contained.
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Created a functional web-based timeline editor for demo.seq files.
Features implemented:
✅ Load/save demo.seq files via browser file API
✅ Visual Gantt-style timeline with time markers
✅ Drag & drop sequences and effects along timeline
✅ Properties panel for editing timing, priorities, arguments
✅ Zoom controls (10% - 200%)
✅ Add/delete sequences and effects
✅ Real-time statistics (sequence count, effect count, duration)
✅ Dark theme matching VSCode aesthetic
✅ Color-coded items (sequences blue, effects gray)
✅ Selection highlighting
Technical details:
- Pure HTML/CSS/JavaScript (no dependencies, no build step)
- ~600 lines in single self-contained HTML file
- Works offline, no backend needed
- Parser converts demo.seq text → JavaScript objects
- Serializer converts JavaScript objects → demo.seq text
Usage:
1. Open tools/timeline_editor/index.html in browser
2. Load assets/demo.seq
3. Drag items, edit properties
4. Save modified file
5. Copy to assets/demo.seq and rebuild
Limitations (acceptable for v1):
- No undo/redo yet
- No effect creation UI (must use properties panel)
- No overlap detection warnings
- No snap-to-grid
- No preview rendering (intentional - editor only)
This provides a quick way to experiment with demo timing without
recompiling, and better visualization of sequence/effect relationships.
Size: ~25KB (HTML + embedded JS/CSS)
Status: Task #57 basic implementation complete
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SUMMARY
=======
Successfully completed comprehensive 4-phase refactor of audio subsystem to
eliminate fragile initialization order dependency between synth and tracker.
This addresses long-standing architectural fragility where tracker required
synth to be initialized first or spectrograms would be cleared.
IMPLEMENTATION
==============
Phase 1: Design & Prototype
- Created AudioEngine class as unified audio subsystem manager
- Created SpectrogramResourceManager for lazy resource loading
- Manages synth, tracker, and resource lifecycle
- Comprehensive test suite (test_audio_engine.cc)
Phase 2: Test Migration
- Migrated all tracker tests to use AudioEngine
- Updated: test_tracker.cc, test_tracker_timing.cc,
test_variable_tempo.cc, test_wav_dump.cc
- Pattern: Replace synth_init() + tracker_init() with engine.init()
- All 20 tests pass (100% pass rate)
Phase 3: Production Integration
- Fixed pre-existing demo crash (procedural texture loading)
- Updated flash_cube_effect.cc and hybrid_3d_effect.cc
- Migrated main.cc to use AudioEngine
- Replaced tracker_update() calls with engine.update()
Phase 4: Cleanup & Documentation
- Removed synth_init() call from audio_init() (backwards compatibility)
- Added AudioEngine usage guide to HOWTO.md
- Added audio initialization protocols to CONTRIBUTING.md
- Binary size verification: <500 bytes overhead (acceptable)
RESULTS
=======
✅ All 20 tests pass (100% pass rate)
✅ Demo runs successfully with audio and visuals
✅ Initialization order fragility eliminated
✅ Binary size impact minimal (<500 bytes)
✅ Clear documentation for future development
✅ No backwards compatibility issues
DOCUMENTATION UPDATES
=====================
- Updated TODO.md: Moved Task #56 to "Recently Completed"
- Updated PROJECT_CONTEXT.md: Added AudioEngine milestone
- Updated HOWTO.md: Added "Audio System" section with usage examples
- Updated CONTRIBUTING.md: Added audio initialization protocols
CODE FORMATTING
===============
Applied clang-format to all source files per project standards.
FILES CREATED
=============
- src/audio/audio_engine.h (new)
- src/audio/audio_engine.cc (new)
- src/audio/spectrogram_resource_manager.h (new)
- src/audio/spectrogram_resource_manager.cc (new)
- src/tests/test_audio_engine.cc (new)
KEY FILES MODIFIED
==================
- src/main.cc (migrated to AudioEngine)
- src/audio/audio.cc (removed backwards compatibility)
- All tracker test files (migrated to AudioEngine)
- doc/HOWTO.md (added usage guide)
- doc/CONTRIBUTING.md (added protocols)
- TODO.md (marked complete)
- PROJECT_CONTEXT.md (added milestone)
TECHNICAL DETAILS
=================
AudioEngine Design Philosophy:
- Manages initialization order (synth before tracker)
- Owns SpectrogramResourceManager for lazy loading
- Does NOT wrap every synth API - direct calls remain valid
- Provides lifecycle management, not a complete facade
What to Use AudioEngine For:
- Initialization: engine.init() instead of separate init calls
- Updates: engine.update(music_time) instead of tracker_update()
- Cleanup: engine.shutdown() for proper teardown
- Seeking: engine.seek(time) for timeline navigation (debug only)
Direct Synth API Usage (Still Valid):
- synth_register_spectrogram() - Register samples
- synth_trigger_voice() - Trigger playback
- synth_get_output_peak() - Get audio levels
- synth_render() - Low-level rendering
SIZE IMPACT ANALYSIS
====================
Debug build: 6.2MB
Size-optimized build: 5.0MB
Stripped build: 5.0MB
AudioEngine overhead: <500 bytes (0.01% of total)
BACKWARD COMPATIBILITY
======================
No breaking changes. Tests that need low-level control can still call
synth_init() directly. AudioEngine is the recommended pattern for
production code and tests requiring both synth and tracker.
handoff(Claude): Task #56 COMPLETE - All 4 phases finished. Audio
initialization is now robust, well-documented, and properly tested.
The fragile initialization order dependency has been eliminated.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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- Added test_image.tga (generated via tools/gen_test_tga.cc).
- Updated test_assets_list.txt to include the TGA.
- Updated test_assets.cc to verify image decompression and pixel values.
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- Integrated stb_image for image decompression in asset_packer.
- Added GetTextureAsset helper in asset_manager.
- Updated procedural asset generation to include dimensions header for consistency.
- Updated test_assets to verify new asset format.
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Improvements to seq_compiler Gantt chart visualization:
- Add optional sequence name support: SEQUENCE <start> <pri> ["name"] [end]
Names displayed in both ASCII and HTML Gantt charts for better readability
- Implement adaptive tick intervals based on demo duration:
* ≤5s: 1s intervals
* ≤40s: 2s intervals (fixes 32.5s demo from 5s to 2s)
* ≤100s: 5s intervals
* >100s: 10s+ intervals
- Sort sequences by start time in Gantt output for chronological visualization
- Add horizontal visual separators between sequences in both ASCII and HTML
- Update documentation (SEQUENCE.md) and quick reference (demo.seq)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Fixes bug where all sequences appeared to run until demo end time instead
of their actual end times in Gantt chart visualizations.
Issue:
- Both ASCII and HTML Gantt generators initialized seq_end to max_time
- This caused all sequences to display full demo duration
- Example: SEQ@0s showed (0-36s) instead of actual (0-2s)
Fix:
- Initialize seq_end to seq_start instead of max_time
- Calculate actual end from effects or explicit [end_time]
- Sequences now show correct duration in visualizations
Before:
SEQ@0s [pri=0] (0-36s) # Wrong - shows full demo duration
SEQ@2s [pri=0] (2-36s) # Wrong
After:
SEQ@0s [pri=0] (0-2s) # Correct - shows actual sequence duration
SEQ@2s [pri=0] (2-5s) # Correct
This makes Gantt charts much more accurate for understanding actual
sequence overlap and timing relationships.
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Simplifies effect priority management by using relative modifiers instead
of explicit numbers, making timeline reordering much more practical.
## New Priority System
Effects now use priority modifiers after EFFECT keyword:
- `+` increment priority by 1 (or start at 0 if first)
- `=` keep same priority as previous effect
- `-` decrement priority (or start at -1 if first, for background)
Old syntax:
```
EFFECT FlashEffect 0.0 0.5 0
EFFECT FadeEffect 0.1 0.3 1
EFFECT BgCube 0.2 3 -1
```
New syntax:
```
EFFECT - BgCube 0.2 3 # Priority -1 (background)
EFFECT + FlashEffect 0.0 0.5 # Priority 0
EFFECT + FadeEffect 0.1 0.3 # Priority 1
```
## Benefits
✓ Reordering effects no longer requires renumbering all priorities
✓ Priority relationships are explicit and relative
✓ File order matches render order (easier to understand)
✓ Same-priority effects clearly marked with `=`
✓ Background layers (-1) clearly marked with `-`
✓ Reduces errors when reorganizing timelines
## Implementation
- Updated seq_compiler to parse +/=/- modifiers
- Tracks current priority per sequence
- First effect sets base priority (0 or -1)
- Subsequent effects modify relative to previous
- Generated C++ code unchanged (still uses integer priorities)
## Changes to demo.seq
- All effects updated to use new syntax
- Effects reordered by priority within sequences
- Priority gaps removed (were likely unintentional)
- Comments updated to reflect new system
## Documentation
- Updated SEQUENCE.md with new syntax
- Added examples showing +, =, - usage
- Explained priority calculation rules
This makes timeline authoring significantly more maintainable, especially
when experimenting with different effect orderings during development.
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Enhances seq_compiler with flexible output modes and beautiful HTML visualization.
## New Features
### 1. Optional C++ Output (Validation Mode)
- Output .cc file is now optional
- Running without output performs validation only
- Useful for checking .seq syntax before committing
- Example: `./seq_compiler assets/demo.seq`
### 2. HTML/SVG Gantt Chart
- New --gantt-html=<file.html> option
- Generates interactive HTML page with SVG timeline
- Much more readable than ASCII version
- Features:
* Color-coded sequences (blue) and effects (teal)
* Invalid time ranges highlighted in red
* Hover tooltips with full effect details
* Time axis with 5-second markers
* Dark theme matching IDE aesthetics
* Vertical time markers for easy reading
* Legend explaining visual elements
### 3. Flexible Command Line
All output modes can be combined:
```bash
# Validation only
./seq_compiler demo.seq
# Code + ASCII Gantt
./seq_compiler demo.seq timeline.cc --gantt=chart.txt
# Code + HTML Gantt
./seq_compiler demo.seq timeline.cc --gantt-html=chart.html
# All outputs
./seq_compiler demo.seq timeline.cc --gantt=t.txt --gantt-html=t.html
```
## HTML Gantt Advantages Over ASCII
✓ Precise pixel-perfect positioning
✓ Scalable vector graphics (zoom without quality loss)
✓ Color coding for priorities and validity
✓ Interactive hover tooltips
✓ Professional dark theme
✓ Much easier to read complex timelines
✓ Can be shared via browser or screenshots
## Implementation Details
- Added ~190 lines for HTML/SVG generation
- Dark theme (#1e1e1e background) matches IDE
- SVG dynamically sized based on sequence count
- Invalid time ranges rendered in red with warning symbol
- Time scale automatically calculated from demo duration
- Hover effects provide detailed information
## Use Cases
- **Validation**: Quick syntax check without code generation
- **ASCII Gantt**: Terminal-friendly, git-friendly text visualization
- **HTML Gantt**: Beautiful presentation for design discussions
- **Combined**: Full toolchain for timeline development
The HTML output answers your question about SVG generation - it turned out
to be straightforward (~190 lines) and provides significantly better
visualization than ASCII art!
## Files Changed
- tools/seq_compiler.cc: Added validation mode and HTML generation
- assets/demo.seq: Updated documentation with new usage examples
- .gitignore: Exclude generated timeline files
Example HTML output: 17KB file with full interactive timeline visualization.
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Implements ASCII Gantt chart generation for timeline debugging and visualization.
## New Feature
- Added --gantt=<output.txt> flag to seq_compiler
- Generates visual timeline showing sequences and effects on time axis
- Displays sequence priority, effect priority, and time ranges
- Shows explicit sequence end times with [END=...] markers
- Detects and warns about invalid time ranges (end < start)
## Usage
```bash
./build/seq_compiler assets/demo.seq src/generated/timeline.cc --gantt=timeline.txt
```
## Chart Format
- Time axis in seconds with 5-second markers
- Sequences shown as solid bars (█)
- Effects shown as shaded bars (▓) with sequence background (·)
- Labels include start/end times and priorities
- Legend and documentation at chart end
## Example Output
```
Time (s): 0 5 10 15 20 25 30
|----|----|----|----|----|----|----|
SEQ@0s [pri=0]
████████████████████████████████ (0-30s)
FlashEffect [pri=4]
▓▓·························· (0-1s)
HeptagonEffect [pri=0]
▓▓▓▓▓▓▓▓▓▓▓▓················ (0-10s)
```
## Benefits
- Visualize sequence overlap and layering
- Identify timing conflicts and gaps
- Verify effect priorities render in correct order
- Debug invalid time ranges
- Plan demo choreography visually
## Files Changed
- tools/seq_compiler.cc: Added generate_gantt_chart() function
- assets/demo.seq: Added usage documentation
- .gitignore: Exclude generated demo_timeline.txt
This debugging tool significantly improves timeline development workflow
by providing visual feedback on sequence and effect timing.
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This milestone implements several key enhancements to the sequencing system
and developer documentation:
## Optional Sequence End Times (New Feature)
- Added support for explicit sequence termination via [time] syntax
- Example: SEQUENCE 0 0 [30.0] forcefully ends all effects at 30 seconds
- Updated seq_compiler.cc to parse optional [time] parameter with brackets
- Added end_time_ field to Sequence class (default -1.0 = no explicit end)
- Modified update_active_list() to check sequence end time and deactivate
all effects when reached
- Fully backward compatible - existing sequences work unchanged
## Comprehensive Effect Documentation (demo.seq)
- Documented all effect constructor parameters (standard: device, queue, format)
- Added runtime parameter documentation (time, beat, intensity, aspect_ratio)
- Created detailed effect catalog with specific behaviors:
* Scene effects: HeptagonEffect, ParticlesEffect, Hybrid3DEffect, FlashCubeEffect
* Post-process effects: GaussianBlurEffect, SolarizeEffect, ChromaAberrationEffect,
ThemeModulationEffect, FadeEffect, FlashEffect
- Added examples section showing common usage patterns
- Documented exact parameter behaviors (e.g., blur pulsates 0.5x-2.5x,
flash triggers at intensity > 0.7, theme cycles every 8 seconds)
## Code Quality & Verification
- Audited all hardcoded 1280x720 dimensions throughout codebase
- Verified all shaders use uniforms.resolution and uniforms.aspect_ratio
- Confirmed Effect::resize() properly updates width_/height_ members
- No issues found - dimension handling is fully dynamic and robust
## Files Changed
- tools/seq_compiler.cc: Parse [end_time], generate set_end_time() calls
- src/gpu/effect.h: Added end_time_, set_end_time(), get_end_time()
- src/gpu/effect.cc: Check sequence end time in update_active_list()
- assets/demo.seq: Comprehensive syntax and effect documentation
- Generated files updated (timeline.cc, assets_data.cc, music_data.cc)
This work establishes a more flexible sequencing system and provides
developers with clear documentation for authoring demo timelines.
handoff(Claude): Optional sequence end times implemented, effect documentation
complete, dimension handling verified. Ready for next phase of development.
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logging infrastructure
MILESTONE: Audio System Robustness & Debugging
Core Audio Backend Optimization:
- Fixed stop-and-go audio glitches caused by timing mismatch
- Core Audio optimized for 44.1kHz (10ms periods), but 32kHz expected ~13.78ms
- Added allowNominalSampleRateChange=TRUE to force OS-level 32kHz native
- Added performanceProfile=conservative for 4096-frame buffers (128ms)
- Result: Stable ~128ms callbacks, <1ms jitter, zero underruns
Ring Buffer Improvements:
- Increased capacity from 200ms to 400ms for tempo scaling headroom
- Added comprehensive bounds checking with abort() on violations
- Fixed tempo-scaled buffer fill: dt * g_tempo_scale
- Buffer maintains 400ms fullness during 2.0x acceleration
NOTE_ Parsing Fix & Sample Caching:
- Fixed is_note_name() checking only first letter (A-G)
- ASSET_KICK_1 was misidentified as A0 (27.5 Hz)
- Required "NOTE_" prefix to distinguish notes from assets
- Updated music.track to use NOTE_E2, NOTE_G4 format
- Discovered resource exhaustion: 14 unique samples → 228 registrations
- Implemented comprehensive caching in tracker_init()
- Assets: loaded once from AssetManager, cached synth_id
- Generated notes: created once, stored in persistent pool
- Result: MAX_SPECTROGRAMS 256 → 32 (88% memory reduction)
Debug Logging Infrastructure:
- Created src/util/debug.h with 7 category macros
(AUDIO, RING_BUFFER, TRACKER, SYNTH, 3D, ASSETS, GPU)
- Added DEMO_ENABLE_DEBUG_LOGS CMake option (defines DEBUG_LOG_ALL)
- Converted all diagnostic code to use category macros
- Default build: macros compile to ((void)0) for zero runtime cost
- Debug build: comprehensive logging for troubleshooting
- Updated CONTRIBUTING.md with pre-commit policy
Resource Analysis Tool:
- Enhanced tracker_compiler to report pool sizes and cache potential
- Analysis: 152/228 spectrograms without caching, 14 with caching
- Tool generates optimization recommendations during compilation
Files Changed:
- CMakeLists.txt: Add DEBUG_LOG option
- src/util/debug.h: New debug logging header (7 categories)
- src/audio/miniaudio_backend.cc: Use DEBUG_AUDIO/DEBUG_RING_BUFFER
- src/audio/ring_buffer.cc: Use DEBUG_RING_BUFFER for underruns
- src/audio/tracker.cc: Implement sample caching, use DEBUG_TRACKER
- src/audio/synth.cc: Use DEBUG_SYNTH for validation
- src/audio/synth.h: Update MAX_SPECTROGRAMS (256→32), document caching
- tools/tracker_compiler.cc: Fix is_note_name(), add resource analysis
- assets/music.track: Update to use NOTE_ prefix format
- doc/CONTRIBUTING.md: Add debug logging pre-commit policy
- PROJECT_CONTEXT.md: Document milestone
- TODO.md: Mark tasks completed
Verification:
- Default build: No debug output, audio plays correctly
- Debug build: Comprehensive logging, audio plays correctly
- Caching working: 14 unique samples cached at init
- All tests passing (17/17)
handoff(Claude): Audio system now stable with robust diagnostic infrastructure.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Added tests for runtime error handling in Asset Manager (unknown function, generation failure). Updated asset_packer to warn instead of fail on unknown functions to facilitate testing. Increased coverage from 71% to 88%.
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- Consolidated all WebGPU shims and platform-specific logic into src/platform.h.
- Refactored platform_init to return PlatformState by value and platform_poll to automatically refresh time and aspect_ratio.
- Removed STL dependencies (std::map, std::vector, std::string) from AssetManager and Procedural subsystems.
- Fixed Windows cross-compilation by adjusting include paths and linker flags in CMakeLists.txt and updating build_win.sh.
- Removed redundant direct inclusions of GLFW/glfw3.h and WebGPU headers across the project.
- Applied clang-format and updated documentation.
handoff(Gemini): Completed Task #20 and 20.1. Platform abstraction is now unified, and core paths are STL-free. Windows build is stable.
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Critical Bug Fixes:
- Fixed pool exhaustion: Tracker slots never freed after use, music stopped
after 8 patterns. Implemented round-robin allocation with cleanup.
- Fixed note name parsing: Added automatic note-to-frequency conversion
in tracker_compiler. Bass and melody now play correctly.
- Fixed timing mismatch: Patterns are 2 seconds but triggered every 4 seconds,
causing silence gaps. Updated SCORE to trigger every 2 seconds.
Improvements:
- Implemented dynamic resource sizing in tracker_compiler: Analyzes score to
determine optimal MAX_VOICES/MAX_SPECTROGRAMS values.
- Created comprehensive rock track: 11 patterns with drums, bass, power chords,
and lead melody over 25 seconds.
- Added 213 lines of asset system documentation with 8 prioritized tasks.
Known Issues for next session:
- Audio quality could be improved (some artifacts remain)
- Note synthesis uses default parameters, needs tuning
- Pattern overlaps might cause voice exhaustion under heavy load
Files Changed:
- src/audio/tracker.cc: Round-robin pool allocation, cleanup logic
- tools/tracker_compiler.cc: Note name parser, resource usage analysis
- src/audio/synth.h: Increased limits to 16 based on analysis
- assets/music.track: 230-line rock arrangement
- doc/ASSET_SYSTEM.md: Comprehensive documentation + 8 tasks
- TODO.md: Updated with recent completions and known issues
handoff(Gemini): Music system now functional but needs quality improvements.
Audio artifacts and synthesis tuning remain. See TODO.md for details.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Replaces the global array with which wraps a local static array. This ensures the asset table is initialized on first use, preventing crashes when other globals (like shader strings) try to access assets during dynamic initialization.
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Updates asset_packer to align static asset arrays to 16 bytes and append a null-terminator. This allows assets to be safely reinterpreted as typed pointers (e.g., float*, const char*) without copying. Updates AssetManager documentation to reflect these guarantees.
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- Implemented the basic tracker system with runtime support (tracker.h, tracker.cc).
- Added a sample music track file (assets/music.track).
- Created a tracker compiler tool (tools/tracker_compiler.cc) to generate music data.
- Updated CMakeLists.txt to build the tracker compiler and integrate generated data.
- Updated GEMINI.md to reflect new file locations and project context.
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- Implemented dynamic resolution support in all shaders and effects.
- Added explicit viewport setting for all render passes to ensure correct scaling.
- Fixed 3D shadow mapping by adding PLANE support and standardizing soft shadow logic.
- Propagated resize events through the Effect hierarchy.
- Applied project-wide code formatting.
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- Task #4b: Added scripts/check_all.sh to build and test all platform targets (native and Windows cross-compile) to ensure pre-commit stability.
- Task #10: Modified spectool to trim both leading and trailing silent frames from generated .spec files, reducing asset size.
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- Added preprocessor definitions for 'WGPUOptionalBool_True' and 'WGPUOptionalBool_False' to ensure successful cross-compilation against the older wgpu-native headers used for the Windows build.
- This resolves the build failures in the Windows CI/check script.
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- Task A: Centralized all generated code (assets, timeline) into a single directory to create a single source of truth.
- Task A: Isolated test asset generation into a temporary build directory, preventing pollution of the main source tree.
- Task B: Vertically compacted all C/C++ source files by removing superfluous newlines.
- Task C: Created a top-level README.md with project overview and file descriptions.
- Task D: Moved non-essential documentation into a directory to reduce root-level clutter.
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- Replaced all global static variables in the platform layer with a single PlatformState struct.
- Updated all platform function signatures to accept a pointer to this struct, making the implementation stateless and more modular.
- Refactored main.cc, tests, and tools to instantiate and pass the PlatformState struct.
- This improves code organization and removes scattered global state.
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- Fixed a 'squished' viewport bug on high-DPI (Retina) displays by querying the framebuffer size in pixels instead of using the window size in points.
- Centralized window dimension management within the platform layer.
- Added a '--resolution WxH' command-line option to allow specifying a custom window size at startup. This option is stripped in STRIP_ALL builds.
- Updated all test and tool executables to use the new platform API.
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- Fixed test_sequence by restoring MainSequence::init_test for mocking.
- Corrected CMakeLists.txt dependencies and source groupings to prevent duplicate symbols.
- standardizing Effect constructor signature for seq_compiler compatibility.
- Implemented Hybrid3DEffect using bumpy Renderer3D and procedural NOISE_TEX.
- Updated MainSequence to support depth buffer for 3D elements.
- Formatted all source files with clang-format.
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- Added depth buffer support to MainSequence.
- Implemented Hybrid3DEffect for the main timeline.
- Fixed effect initialization order in MainSequence.
- Ensured depth-stencil compatibility for all scene effects.
- Updated demo sequence with 3D elements and post-processing.
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- Updated asset_packer to parse PROC(...) syntax.
- Implemented runtime dispatch in AssetManager for procedural generation.
- Added procedural generator functions (noise, grid, periodic).
- Added comprehensive tests for procedural asset lifecycle.
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- Refactored asset manager to use a static array for caching, improving performance and memory efficiency.
- Updated asset_packer to correctly generate ASSET_LAST_ID for array sizing.
- Modified asset_manager.h to use a forward declaration for AssetId.
- Updated asset_manager.cc to use the conditional include for generated asset headers.
- Added a test case in test_assets to verify the array-based cache and ASSET_LAST_ID logic.
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- Enabled AllowShortFunctionsOnASingleLine: All
- Enabled AllowShortBlocksOnASingleLine: Always
- Enabled AllowShortIfStatementsOnASingleLine: Always
- Enabled AllowShortLoopsOnASingleLine: true
- Set MaxEmptyLinesToKeep: 1
- Applied formatting to all source files.
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- Updated CMakeLists.txt to generate assets.h and assets_data.cc in src/generated/.
- Updated scripts/gen_assets.sh to reflect the new output location.
- Modified asset_packer.cc to generate correct include paths in assets_data.cc.
- Updated source files (main.cc, asset_manager.cc, test_assets.cc) to include headers from the 'generated/' subdirectory.
- Ensured all targets have correct include paths to find generated headers.
- Removed stale generated files from src/.
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- Fixed 'Invalid sample count 0' and 'Invalid anisotropic clamp: 0' by ensuring explicit pipeline and sampler states.
- Resolved WGSL parsing errors by replacing swizzle assignments in compute shaders.
- Fixed 'Texture destroyed' error in render_frame by reordering command submission and resource presentation/release.
- Added WGPU_DEPTH_SLICE_UNDEFINED for Windows compatibility and ensured consistent resolveTarget initialization.
- Cleaned up PassthroughEffect bind group layout mismatch and redundant string helper definitions.
- Verified all tests pass and applied consistent formatting.
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Adds a copy-pasteable example line to the seq_compiler usage message when run without arguments.
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Fixes seq_compiler build for Windows cross-compilation. Moves common WebGPU compatibility shims to gpu.h. Applies project-wide coding style via clang-format. Verified on both macOS (native) and Windows (cross-compile).
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Adds a 'seq_compiler' tool that converts a text-based timeline (assets/demo.seq) into a generated C++ file. This allows editing effect sequences and timing without modifying engine code. Replaces manual sequence creation with a generated 'LoadTimeline' function.
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This feature allows developers to jump to a specific time in the demo sequence (e.g., './demo64k --seek 10.5'). It simulates the game logic, audio state (rendering silent buffers), and visual physics (compute shaders) from t=0 up to the target time before starting real-time playback. Audio initialization is refactored to separate device init and start.
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