diff options
Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance2/glsl3/loops-with-side-effects.html')
| -rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance2/glsl3/loops-with-side-effects.html | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance2/glsl3/loops-with-side-effects.html b/dom/canvas/test/webgl-conf/checkout/conformance2/glsl3/loops-with-side-effects.html new file mode 100644 index 000000000..b3d36c928 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance2/glsl3/loops-with-side-effects.html @@ -0,0 +1,232 @@ +<!-- + +/* +** Copyright (c) 2013 The Khronos Group Inc. +** +** Permission is hereby granted, free of charge, to any person obtaining a +** copy of this software and/or associated documentation files (the +** "Materials"), to deal in the Materials without restriction, including +** without limitation the rights to use, copy, modify, merge, publish, +** distribute, sublicense, and/or sell copies of the Materials, and to +** permit persons to whom the Materials are furnished to do so, subject to +** the following conditions: +** +** The above copyright notice and this permission notice shall be included +** in all copies or substantial portions of the Materials. +** +** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. +*/ + +--> + +<!DOCTYPE html> +<html> +<head> +<meta charset="utf-8"> +<title>WebGL Loops and side-effects test</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> +<div id="description"></div> +<canvas id="canvas" style="width: 50px; height: 50px;"> </canvas> +<div id="console"></div> + +<!-- Variations on counter functions that used to give incorrect result on OSX 10.9 --> +<script id="counter0" type="x-shader/x-shader"> +bool s0 = false; +while(true) { + bool bar = s0; + if (!bar) { + bar = i < 3; + i = i + 1; + } + bool foo = !bar; + if (foo) { + break; + } + s0 = false; + n ++; +} +return n; +</script> +<script id="counter1" type="x-shader/x-shader"> +while(true) { + bool bar = i < 3; + i = i + 1; + bool foo = !bar; + if (foo) { + break; + } + n ++; +} +return n; +</script> +<script id="counter2" type="x-shader/x-shader"> +bool s0 = true; +while(true) { + bool bar = s0; + if (!bar) { + bar = i < 3; + i = i + 1; + } + bool foo = !bar; + if (foo) { + break; + } + s0 = false; + n ++; +} +return n; +</script> +<script id="counter3" type="x-shader/x-shader"> +bool s0 = true; +while(true) { + bool bar = s0; + if (!bar) { + bar = i++ < 3; + } + bool foo = !bar; + if (foo) { + break; + } + s0 = false; + n ++; +} +return n; +</script> +<script id="counter4" type="x-shader/x-shader"> +bool s0 = true; +while(true) { + bool bar = s0 || (i++ < 3); + bool foo = !bar; + if (foo) { + break; + } + s0 = false; + n ++; +} +return n; +</script> +<script id="counter5" type="x-shader/x-shader"> +bool s0 = true; +while(true) { + if (!(s0 || (i++ < 3))) { + break; + } + s0 = false; + n ++; +} +return n; +</script> +<script id="counter6" type="x-shader/x-shader"> +bool s0 = true; +while(s0 || (i++ < 3)) { + s0 = false; + n ++; +} +return n; +</script> + +<script id="counter7" type="x-shader/x-shader"> +do { + n++; +} while (i++ < 3); +return n; +</script> +<script> +"use strict"; +description("This test checks for bugs related to loops and side-effects."); + +debug(""); + +var wtu = WebGLTestUtils; +var canvas = document.getElementById("canvas"); +var gl = wtu.create3DContext(canvas, null, 2); + +if (!gl) { + testFailed("WebGL context does not exist"); +} else { + testPassed("WebGL context exists"); + + for (var i = 0; i < 8; i++) { + tryCounter(document.getElementById("counter" + i).text); + debug(""); + } +} + +function evaluateCounter(source) { + var jsSource = "(function(n, i) {" + + source.split("bool").join("var") + + "})(0, 0)"; + + return eval(jsSource); +} + +function makeFSSource(source) { + var fsSource = + "#version 300 es\n" + + "precision highp float;\n" + + "in float vertexCounter;\n" + + "uniform int uVertZero;\n" + + "uniform int uReference;\n" + + "out vec4 fragColor;\n" + + "int counter(int n, int i) {\n" + + source + + "}\n" + + "void main() {\n" + + " fragColor = vec4(0.0, 0.0, 0.0, 1.0);\n" + + " fragColor.r = float(counter(uVertZero, uVertZero) == uReference);\n" + + " fragColor.g = float(int(vertexCounter) == uReference);\n" + + "}\n"; + return fsSource; +} + +function makeVSSource(source) { + var vsSource = + "#version 300 es\n" + + "out float vertexCounter;\n" + + "uniform int uFragZero;\n" + + "in vec4 vPosition;\n" + + "int counter(int n, int i) {\n" + + source + + "}\n" + + "void main() {\n" + + " gl_Position = vPosition;\n" + + " vertexCounter = float(counter(uFragZero, uFragZero));\n" + + "}\n"; + return vsSource; +} + +function tryCounter(source) { + canvas.width = 50; canvas.height = 50; + gl.viewport(0, 0, canvas.width, canvas.height); + wtu.setupUnitQuad(gl, 0, 1); + + var program = wtu.setupProgram(gl, [makeVSSource(source), makeFSSource(source)], ['vPosition'], [0], true); + + gl.uniform1i(gl.getUniformLocation(program, "uVertZero"), 0); + gl.uniform1i(gl.getUniformLocation(program, "uFragZero"), 0); + + var reference = evaluateCounter(source); + gl.uniform1i(gl.getUniformLocation(program, "uReference"), reference); + + gl.useProgram(program); + wtu.clearAndDrawUnitQuad(gl, [0, 0, 0, 0]); + wtu.checkCanvas(gl, [255, 255, 0, 255]); +} + +debug(""); +var successfullyParsed = true; +</script> +<script src="../../js/js-test-post.js"></script> + +</body> +</html> |