LayoutTests/webgl/2.0.0/resources/webgl_test_files/conformance/glsl/bugs/loop-if-loop-gradient.html - WebKit - Git at Google

 <!--

 /*
 ** Copyright (c) 2015 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>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>
	<!--

	/*
	** Copyright (c) 2015 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>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>