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Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/tex-image-canvas-corruption.html')
-rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/tex-image-canvas-corruption.html | 51 |
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diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/tex-image-canvas-corruption.html b/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/tex-image-canvas-corruption.html new file mode 100644 index 0000000000..4277917644 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/tex-image-canvas-corruption.html @@ -0,0 +1,51 @@ +<!-- +Copyright (c) 2019 The Khronos Group Inc. +Use of this source code is governed by an MIT-style license that can be +found in the LICENSE.txt file. +--> + +<!DOCTYPE html> +<html> +<head> +<meta charset="utf-8"> +<title>Testing 3D canvas is usable after being used as texImage2D source</title> +<link rel="stylesheet" href="../../../resources/js-test-style.css"/> +<script src="../../../js/js-test-pre.js"></script> +<script src="../../../js/webgl-test-utils.js"></script> +</head> +<body> +<canvas id="example" width="512" height="512"></canvas> +<div id="description"></div> +<div id="console"></div> +<script> +"use strict"; +// Regression test for http://crbug.com/368582 +description(); +var wtu = WebGLTestUtils; +var canvas = document.getElementById("example"); +var ctx = canvas.getContext("2d"); + +var gl = wtu.create3DContext(); +var texture = gl.createTexture(); + +var image = wtu.makeImage('../../../resources/blue-1x1.jpg', function() { + renderToCanvas(); + renderToCanvas(); + wtu.checkCanvas(ctx, [0, 0, 255, 255], "All pixels should be blue", 2); + finishTest(); +}); + +function renderToCanvas() { + // Clear the 2d canvas then draw the image to it (a blue pixel) + ctx.clearRect(0, 0, canvas.width, canvas.height); + ctx.drawImage(image, 0, 0, canvas.width, canvas.height); + + // Upload the results to a WebGL texture + gl.bindTexture(gl.TEXTURE_2D, texture); + gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, canvas); +} + +var successfullyParsed = true; +</script> +</body> +</html> |