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Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance/glsl/bugs/loop-if-loop-gradient.html')
-rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/glsl/bugs/loop-if-loop-gradient.html | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/glsl/bugs/loop-if-loop-gradient.html b/dom/canvas/test/webgl-conf/checkout/conformance/glsl/bugs/loop-if-loop-gradient.html new file mode 100644 index 0000000000..914604ad07 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/glsl/bugs/loop-if-loop-gradient.html @@ -0,0 +1,75 @@ +<!-- +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>Gradient loop in if in loop crash</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> +<script id='vshader' type='x-shader/x-vertex'> +precision highp float; +void main() { +gl_Position = vec4( 1.0, 1.0, 1.0, 1.0 ); +} +</script> +<script id='fshader' type='x-shader/x-fragment'> +precision mediump float; +uniform lowp sampler2D iChannel0; + +void main(){ + highp float c; + for (mediump float i = 0.0; i <= 1.0; i++) { + if (gl_FragCoord.x < 0.0) { + for (mediump float l = 0.0; l < 2.0; l++) { // with 1 as a bound it works + c = texture2D(iChannel0, vec2(l), 0.0).x; + } + } + } + gl_FragColor = vec4(c, vec3(1.0)); +} +</script> +</head> +<body> +<div id="description"></div> +<div id="console"></div> +<script> +"use strict"; +description("This test checks an ANGLE regression that was caused by a complex ShaderToy shader. <a href='https://code.google.com/p/chromium/issues/detail?id=524297'>crbug.com/524297</a>"); + +debug(""); + +var wtu = WebGLTestUtils; +var gl = wtu.create3DContext(); + +gl.canvas.addEventListener("webglcontextlost", function(e) { + testFailed("WebGL context lost"); +}); + +if (!gl) { + testFailed("WebGL context does not exist"); +} else { + testPassed("WebGL context exists"); + debug(""); + + var program = wtu.setupProgram(gl, ['vshader', 'fshader']); + if (!gl.getProgramParameter(program, gl.LINK_STATUS)) { + testFailed("Program failed to link"); + } + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors"); +} + +// Cycle through a rAF once to give any webglcontextlost events a chance to propagate +window.requestAnimationFrame(function() { finishTest(); }); + +debug(""); +var successfullyParsed = true; +</script> + +</body> +</html> |