ce1473c9ab
tests/3d-regression mirrors the gal-regression pattern at renderer scale: shared C++ scenarios call real KiCad 3D-viewer code (opengl_utils, display lists + DrawCulled stencil subtraction, MODEL_3D VBOs, private generators via a rob-template accessor, and full reload()+Redraw() composites over a synthetic BOARD_ADAPTER). A native macOS harness renders them on real OpenGL into 47 committed goldens (bit-deterministic, FBO capture); the wasm harness compiles the same TUs against wasm/stubs/gl_ffp_stub.c no-ops so every scenario renders blank — the TDD red state (parity meter: 47/47 changed). Comparisons use the CI pixelmatch engine via the new generic compare-dirs.ts (floors.json levels; manifest.json cmp-guards registry drift). Documents an upstream bug: appendPostMachiningGeometry's countersink path adds middle quads without normals, silently erasing the walls of any display list it is batched into (3d-post-machining.png keeps the lists separate to record it). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
120 lines
3.3 KiB
C++
120 lines
3.3 KiB
C++
/**
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* 3D-renderer WebGL test harness (WASM) — runs the shared scenarios
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* (tests/3d-regression/scenarios/) in the browser. Today the legacy GL
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* surface is wasm/stubs/gl_ffp_stub.c no-ops, so every scenario renders a
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* black canvas: the TDD red state the WebGL port turns green.
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*
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* Unlike the GAL harness this needs no wx window: the renderer draws into
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* whatever context is current, so a direct emscripten WebGL2 context on
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* #canvas is enough — created with the attributes the suite requires
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* (stencil for DrawCulled, no MSAA to match the native single-sample FBO,
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* preserveDrawingBuffer for Playwright canvas screenshots).
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*/
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#include <emscripten.h>
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#include <emscripten/html5.h>
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#include "scene3d_test_ctx.h"
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#include "scene3d_test_scenarios.h"
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#include <cstdio>
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static const int CAPTURE_WIDTH = 800; // must match manifest.json + native FBO
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static const int CAPTURE_HEIGHT = 600;
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static EMSCRIPTEN_WEBGL_CONTEXT_HANDLE g_context = 0;
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static SCENE3D_CTX* g_ctx = nullptr;
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extern "C"
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{
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EMSCRIPTEN_KEEPALIVE
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int getTotalScenarios()
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{
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return Scene3DTest::GetScenarioCount();
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}
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EMSCRIPTEN_KEEPALIVE
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const char* getScenarioName( int aIndex )
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{
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return Scene3DTest::GetScenarioName( aIndex );
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}
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EMSCRIPTEN_KEEPALIVE
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int getCanvasWidth()
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{
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return CAPTURE_WIDTH;
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}
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EMSCRIPTEN_KEEPALIVE
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int getCanvasHeight()
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{
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return CAPTURE_HEIGHT;
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}
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EMSCRIPTEN_KEEPALIVE
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int runScenario( int aIndex )
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{
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if( aIndex < 0 || aIndex >= Scene3DTest::GetScenarioCount() )
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return -1;
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if( emscripten_webgl_make_context_current( g_context ) != EMSCRIPTEN_RESULT_SUCCESS )
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return -2;
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if( !g_ctx )
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{
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g_ctx = new SCENE3D_CTX( CAPTURE_WIDTH, CAPTURE_HEIGHT );
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g_ctx->InitOnce();
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}
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std::printf( "[3d-webgl] scenario %d: %s\n", aIndex, Scene3DTest::GetScenarioName( aIndex ) );
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// Start from a cleared frame; scenarios call BeginFrame themselves.
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glViewport( 0, 0, CAPTURE_WIDTH, CAPTURE_HEIGHT );
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glClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
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glClearDepth( 1.0f );
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glClearStencil( 0 );
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glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT );
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Scene3DTest::RenderScenario( *g_ctx, aIndex );
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glFinish();
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return 0;
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}
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} // extern "C"
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int main()
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{
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EmscriptenWebGLContextAttributes attrs;
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emscripten_webgl_init_context_attributes( &attrs );
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attrs.majorVersion = 2;
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attrs.minorVersion = 0;
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attrs.alpha = false;
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attrs.depth = true;
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attrs.stencil = true; // DrawCulled hole subtraction
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attrs.antialias = false; // native goldens are single-sample
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attrs.preserveDrawingBuffer = true; // Playwright canvas.screenshot()
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emscripten_set_canvas_element_size( "#canvas", CAPTURE_WIDTH, CAPTURE_HEIGHT );
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g_context = emscripten_webgl_create_context( "#canvas", &attrs );
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if( g_context <= 0 )
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{
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std::fprintf( stderr, "[3d-webgl] failed to create WebGL2 context (%ld)\n",
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(long) g_context );
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return 1;
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}
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emscripten_webgl_make_context_current( g_context );
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std::printf( "[3d-webgl] ready: %d scenarios, %dx%d\n", Scene3DTest::GetScenarioCount(),
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CAPTURE_WIDTH, CAPTURE_HEIGHT );
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EM_ASM( { if( window._threeDTestReady ) window._threeDTestReady(); } );
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return 0;
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}
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