demo.git/scripts, branch main

chore(scripts): document and guard mingw-w64 setup

2026-03-26T06:40:45Z

- check_all.sh: guard Windows cross-compile step with command -v check instead of failing unconditionally; print install hint when skipped - project_init.sh: add Linux/WSL setup path alongside existing macOS path — installs build-essential/cmake/glfw/wgpu-native via apt-get, prints mingw-w64 install hint if cross-compile toolchain is absent

fix(tools): fetch stb_image_write.h in project_init.sh, fix cnn_test include path

2026-03-22T11:57:14Z

docs(init): add glfw as macOS brew dependency

2026-03-19T17:48:17Z

project_init.sh now checks/installs both wgpu-native and glfw via brew. HOWTO.md documents the macOS prerequisites before the build steps. Co-Authored-By: Claude Sonnet 4.6

fix(win): update wgpu-native to v27, unify Windows/macOS API paths

2026-03-12T16:14:57Z

- fetch_win_deps.sh: update wgpu-native v0.19.4.1 → v27.0.4.0 (same as macOS) - platform.h: remove v0.19 compat shims, Windows now uses WGPUStringView API - gpu.cc/gpu.h: remove DEMO_CROSS_COMPILE_WIN32 old-API branches - texture_readback.cc, visual_debug.cc, hybrid3d_effect.cc: same cleanup - rotating_cube_effect.cc: remove #ifdef guard for depthSlice - glfw3webgpu.c: remove old WGPUSurfaceDescriptorFromWindowsHWND branch - asset_manager.cc: fix DEMO_STRIP_ALL→STRIP_ALL guard (vs_main was missing in STRIP_ALL Windows builds because disk-loading path ran on embedded data) - tracker.cc: skip MP3 assets gracefully in STRIP_ALL builds instead of fatal handoff(Gemini): Windows .exe now runs under Wine. demo64k.exe renders frames and progresses through audio timeline. Pre-existing test failures unchanged. Co-Authored-By: Claude Sonnet 4.6

feat(tools): add offline WGSL validator + fix ntsc.wgsl syntax

2026-03-07T20:18:42Z

- scripts/validate_shaders.py: compose #includes then validate with naga-cli (mirrors InitShaderComposer snippet map; skips runtime-substitution shaders) - src/effects/ntsc.wgsl: remove broken GLSL-syntax vignette() function (GLSL const/param syntax, f32→vec2f assignment; inline vignette at line 55 already handles darkening) handoff(Gemini): validator at scripts/validate_shaders.py; install naga with cargo install naga-cli; 29/29 shaders pass Co-Authored-By: Claude Sonnet 4.6

docs(build): add WSL (Windows 10) build support and documentation

2026-02-23T08:16:54Z

- build_win.sh: platform-aware MinGW DLL search (macOS Homebrew vs Linux apt paths) - HOWTO.md: new WSL section covering native Linux build and Windows cross-compile - PROJECT_CONTEXT.md: note WSL support in Build status handoff(Gemini): WSL native + cross-compile build support added. Co-Authored-By: Claude Sonnet 4.6

fix(build): Resolve Windows cross-compilation failures

2026-02-17T10:00:51Z

This commit fixes several issues that caused the Windows cross-compilation build (`scripts/build_win.sh`) to fail. The root causes were platform-specific API differences in the wgpu-native library and incorrect dependency tracking in the CMake build system for generated code. Changes: - **`tools/seq_compiler.py`**: The timeline generator now wraps `depthSlice` assignments in `#if !defined(DEMO_CROSS_COMPILE_WIN32)` directives to handle API differences in `WGPURenderPassColorAttachment`. - **`src/gpu/gpu.h`**: The `gpu_init_color_attachment` helper is now platform-aware, using a preprocessor guard for the `depthSlice` member. - **`src/effects/*.cc`**: All effects are updated to use the new platform-aware helper or have explicit guards for `depthSlice`. Also, replaced `WGPUTexelCopyTextureInfo` with the cross-platform alias `GpuTextureCopyInfo` in `rotating_cube_effect.cc`. - **`cmake`**: Added `tools/seq_compiler.py` as an explicit dependency to the `generate_timeline` and `generate_test_demo_timeline` custom commands. This ensures that changes to the generator script correctly trigger a rebuild of the generated C++ files. - **`scripts/build_win.sh`**: Removed the erroneous attempt to build the `seq_compiler.py` script as a native executable. With these changes, the Windows cross-compilation build now completes successfully.

feat: add time-based effect activation with auto-passthrough

2026-02-17T07:46:01Z

Effects now accept start/end time parameters and automatically passthrough when inactive. Implements buffer chain integrity via compile-time validation. - Effect base class: dispatch_render() checks time bounds, auto-passthroughs 1:1 input/output effects outside [start, end] interval - seq_compiler.py: validates producer/consumer lifespan constraints for multi-output effects, adds --validate flag, always validates before codegen - Updated all 9 effect classes and test fixtures to pass start/end times - check_all.sh: includes timeline validation step - Tests: 34/34 passing, demo runs successfully Co-Authored-By: Claude Sonnet 4.5

feat: Update check_all.sh to include headless and coverage builds

2026-02-16T14:28:01Z

Fixes headless build by skipping GPU/3D tests. handoff(Gemini): The check_all.sh script now verifies all compilation modes (native, headless, coverage, Windows cross-compilation) and correctly skips GPU/3D tests in headless mode. All checks pass.

refactor(cnn): isolate CNN v2 to cnn_v2/ subdirectory

2026-02-15T17:44:17Z

Move all CNN v2 files to dedicated cnn_v2/ directory to prepare for CNN v3 development. Zero functional changes. Structure: - cnn_v2/src/ - C++ effect implementation - cnn_v2/shaders/ - WGSL shaders (6 files) - cnn_v2/weights/ - Binary weights (3 files) - cnn_v2/training/ - Python training scripts (4 files) - cnn_v2/scripts/ - Shell scripts (train_cnn_v2_full.sh) - cnn_v2/tools/ - Validation tools (HTML) - cnn_v2/docs/ - Documentation (4 markdown files) Changes: - Update CMake source list to cnn_v2/src/cnn_v2_effect.cc - Update assets.txt with relative paths to cnn_v2/ - Update includes to ../../cnn_v2/src/cnn_v2_effect.h - Add PROJECT_ROOT resolution to Python/shell scripts - Update doc references in HOWTO.md, TODO.md - Add cnn_v2/README.md Verification: 34/34 tests passing, demo runs correctly. Co-Authored-By: Claude Sonnet 4.5