Author	SHA1	Message	Date
Viktor Vaczi	6c2cf85177	feat(webgl): Fix GL initialization and add GLSL ES shader conversion ... Progress on WEBGL_GAL rendering: - Fix GLImmediateShim initialization by adding GL function dependencies (glBegin, glEnd, glVertex2f, etc.) to $GLImmediateShim__deps - Add COLOR4D(EDA_COLOR_T) constructor stub to wasm_stubs.cpp - Fix GAL context locking - add LockContext/UnlockContext calls - Add exception catching to build (-sNO_DISABLE_EXCEPTION_CATCHING) - Create GLSL ES 1.00 shader converter in generate_shaders.py: - Remove #version 120 directive (ES 1.00 default) - Add precision highp float/int qualifiers - Convert int * float to float literals (2 * x -> 2.0 * x) - Update build script to clean output files for linker flag changes - Add console capture to test spec for debugging Current status: - WASM builds and loads successfully - GLImmediateShim initializes correctly - WEBGL_GAL creates successfully - Shader compilation fails due to Emscripten LEGACY_GL_EMULATION prepending code that conflicts with custom shader precision Next: Investigate shader compilation with LEGACY_GL_EMULATION or consider alternative approaches for GL compatibility. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-01-07 21:59:21 +01:00
Viktor Vaczi	a4f444fea8	feat(webgl): Add WebGL GAL test infrastructure (Phase 1) ... Add complete test infrastructure for WebGL GAL visual regression testing: - scripts/test-gal-regression.sh: Master script that builds both backends, runs tests, and performs two-level comparison (native vs baseline, webgl vs native) - scripts/build-gal-webgl-test.sh: WASM build using Makefile with em++ - tests/gal-regression/wasm/: WebGL test harness (stub WEBGL_GAL) - tests/e2e/gal-webgl.spec.ts: Playwright test for screenshot capture Fix Homebrew Emscripten environment in scripts/common/env.sh: - Set EMSDK_PYTHON for Python 3.10+ (em++ reads this, not $PYTHON) - Add bundled LLVM to PATH (Emscripten needs its clang with WASM backend) Verified: Native vs Baseline passes (28/28), WebGL generates blank screenshots as expected (WEBGL_GAL implementation is Phase 2). 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-01-07 16:11:31 +01:00