74 lines
2.5 KiB
JavaScript
74 lines
2.5 KiB
JavaScript
/*
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Copyright (c) 2019 The Khronos Group Inc.
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Use of this source code is governed by an MIT-style license that can be
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found in the LICENSE.txt file.
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*/
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function generateTest(internalFormat, pixelFormat, pixelType, prologue, resourcePath, defaultContextVersion) {
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var wtu = WebGLTestUtils;
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var tiu = TexImageUtils;
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var gl = null;
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var successfullyParsed = false;
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function init()
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{
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description('Verify texImage2D and texSubImage2D code paths taking ImageBitmap created from an HTMLCanvasElement (' + internalFormat + '/' + pixelFormat + '/' + pixelType + ')');
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if(!window.createImageBitmap || !window.ImageBitmap) {
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finishTest();
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return;
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}
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// Set the default context version while still allowing the webglVersion URL query string to override it.
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wtu.setDefault3DContextVersion(defaultContextVersion);
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gl = wtu.create3DContext("example");
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if (!prologue(gl)) {
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finishTest();
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return;
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}
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gl.clearColor(0,0,0,1);
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gl.clearDepth(1);
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var testCanvas = document.createElement('canvas');
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var ctx = testCanvas.getContext("2d");
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setCanvasToMin(ctx);
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runImageBitmapTest(testCanvas, 0.5, internalFormat, pixelFormat, pixelType, gl, tiu, wtu, false)
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.then(() => {
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setCanvasTo257x257(ctx);
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return runImageBitmapTest(testCanvas, 0.5, internalFormat, pixelFormat, pixelType, gl, tiu, wtu, false);
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}).then(() => {
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finishTest();
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});
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}
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function setCanvasToRedGreen(ctx) {
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var width = ctx.canvas.width;
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var halfWidth = Math.floor(width / 2);
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var height = ctx.canvas.height;
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var halfHeight = Math.floor(height / 2);
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ctx.fillStyle = "rgba(255, 0, 0, 1)";
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ctx.fillRect(0, 0, halfWidth, halfHeight);
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ctx.fillStyle = "rgba(255, 0, 0, 0.5)";
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ctx.fillRect(halfWidth, 0, halfWidth, halfHeight);
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ctx.fillStyle = "rgba(0, 255, 0, 1)";
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ctx.fillRect(0, halfHeight, halfWidth, halfHeight);
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ctx.fillStyle = "rgba(0, 255, 0, 0.5)";
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ctx.fillRect(halfWidth, halfHeight, halfWidth, halfHeight);
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}
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function setCanvasToMin(ctx) {
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ctx.canvas.width = 2;
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ctx.canvas.height = 2;
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setCanvasToRedGreen(ctx);
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}
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function setCanvasTo257x257(ctx) {
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ctx.canvas.width = 257;
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ctx.canvas.height = 257;
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setCanvasToRedGreen(ctx);
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}
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return init;
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}
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