LayoutTests/webgl/2.0.0/resources/webgl_test_files/conformance/glsl/bugs/pow-with-constant-exponent-should-not-crash.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>Bug - pow() with constant vector exponent should not 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 src="../../../js/glsl-conformance-test.js"></script>
 </head>
 <body>
 <div id="description"></div>
 <div id="console"></div>
 <script id="fshaderTest" type="x-shader/x-fragment">
 precision mediump float;
 void main()
 {
   // pow() with a constant vector exponent may cause a crash on NVIDIA 331 series OpenGL drivers
   vec2 v = pow(gl_FragCoord.xy, vec2(2.0));
   float y = pow(v, vec2(0.45, 0.5)).y;
   gl_FragColor = vec4(0.0, 1.0 + y - gl_FragCoord.y, 0.0, 1.0);
 }
 </script>
 <script id="fshaderNestedTest" type="x-shader/x-fragment">
 precision mediump float;
 void main()
 {
   // pow() with a constant vector exponent may cause a crash on NVIDIA 331 series OpenGL drivers
   // workarounds for this should work even if problematic pow() statements are nested within
   // each other.
   float y = pow(pow(gl_FragCoord.xy, vec2(2.0)), vec2(0.45, 0.5)).y;
   gl_FragColor = vec4(0.0, 1.0 + y - gl_FragCoord.y, 0.0, 1.0);
 }
 </script>
 <script>
 "use strict";

 // This test has quite a lot of tolerance since pow() doesn't have explicit precision requirements
 // in ESSL1, and in ESSL3 the limits are very loose.
 GLSLConformanceTester.runRenderTests([
   {
     fShaderId: "fshaderTest",
     fShaderSuccess: true,
     linkSuccess: true,
     renderTolerance: 20,
     passMsg: "shader with pow() with a constant vector exponent should not crash",
   },
   {
     fShaderId: "fshaderNestedTest",
     fShaderSuccess: true,
     linkSuccess: true,
     renderTolerance: 20,
     passMsg: "shader with nested pow() calls with constant vector exponents should not crash",
   }
 ]);
 </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>Bug - pow() with constant vector exponent should not 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 src="../../../js/glsl-conformance-test.js"></script>
	</head>
	<body>
	<div id="description"></div>
	<div id="console"></div>
	<script id="fshaderTest" type="x-shader/x-fragment">
	precision mediump float;
	void main()
	{
	// pow() with a constant vector exponent may cause a crash on NVIDIA 331 series OpenGL drivers
	vec2 v = pow(gl_FragCoord.xy, vec2(2.0));
	float y = pow(v, vec2(0.45, 0.5)).y;
	gl_FragColor = vec4(0.0, 1.0 + y - gl_FragCoord.y, 0.0, 1.0);
	}
	</script>
	<script id="fshaderNestedTest" type="x-shader/x-fragment">
	precision mediump float;
	void main()
	{
	// pow() with a constant vector exponent may cause a crash on NVIDIA 331 series OpenGL drivers
	// workarounds for this should work even if problematic pow() statements are nested within
	// each other.
	float y = pow(pow(gl_FragCoord.xy, vec2(2.0)), vec2(0.45, 0.5)).y;
	gl_FragColor = vec4(0.0, 1.0 + y - gl_FragCoord.y, 0.0, 1.0);
	}
	</script>
	<script>
	"use strict";

	// This test has quite a lot of tolerance since pow() doesn't have explicit precision requirements
	// in ESSL1, and in ESSL3 the limits are very loose.
	GLSLConformanceTester.runRenderTests([
	{
	fShaderId: "fshaderTest",
	fShaderSuccess: true,
	linkSuccess: true,
	renderTolerance: 20,
	passMsg: "shader with pow() with a constant vector exponent should not crash",
	},
	{
	fShaderId: "fshaderNestedTest",
	fShaderSuccess: true,
	linkSuccess: true,
	renderTolerance: 20,
	passMsg: "shader with nested pow() calls with constant vector exponents should not crash",
	}
	]);
	</script>
	</body>
	</html>