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50 lines
1.5 KiB
50 lines
1.5 KiB
// When this file is loaded in, the high level object is "Module";
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var WasmGMTests = Module;
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WasmGMTests.onRuntimeInitialized = function() {
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WasmGMTests.GetWebGLContext = function(canvas, webGLVersion) {
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if (!canvas) {
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throw 'null canvas passed into makeWebGLContext';
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}
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if (webGLVersion !== 1 && webGLVersion !== 2 ) {
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throw 'invalid webGLVersion';
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}
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var contextAttributes = {
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'alpha': 1,
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'depth': 0, // can be 0 because off-screen.
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'stencil': 0, // can be 0 because off-screen.
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'antialias': 0,
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'premultipliedAlpha': 1,
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'preserveDrawingBuffer': 0,
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'preferLowPowerToHighPerformance': 0,
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'failIfMajorPerformanceCaveat': 0,
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'enableExtensionsByDefault': 1,
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'explicitSwapControl': 0,
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'renderViaOffscreenBackBuffer': 0,
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'majorVersion': webGLVersion,
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};
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// Creates a WebGL context and sets it to be the current context.
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// These functions are defined in emscripten's library_webgl.js
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var handle = GL.createContext(canvas, contextAttributes);
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if (!handle) {
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return 0;
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}
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GL.makeContextCurrent(handle);
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return handle;
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};
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WasmGMTests.LoadResource = function(name, buffer) {
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// The WASM memory will take ownership of this pointer.
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var bytePtr = copyArrayBuffer(buffer);
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WasmGMTests._LoadResource(name, bytePtr, buffer.byteLength);
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}
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function copyArrayBuffer(buffer) {
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var ptr = WasmGMTests._malloc(buffer.byteLength);
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WasmGMTests.HEAPU8.set(new Uint8Array(buffer), ptr);
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return ptr;
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}
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}
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