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Unified Diff: conformance/glsl/functions/glsl-function-cos.html

Issue 8342021: Add webgl conformance tests r15841. (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/webgl/sdk/tests/
Patch Set: Created 9 years, 2 months ago
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Index: conformance/glsl/functions/glsl-function-cos.html
===================================================================
--- conformance/glsl/functions/glsl-function-cos.html (revision 0)
+++ conformance/glsl/functions/glsl-function-cos.html (revision 0)
@@ -0,0 +1,82 @@
+<!--
+Copyright (c) 2011 The Chromium Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file.
+ -->
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+ <title>GLSL cos function test</title>
+ <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+ <link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
+ <script src="../../../resources/js-test-pre.js"></script>
+ <script src="../../resources/webgl-test.js"> </script>
+ <script src="../../resources/webgl-test-utils.js"> </script>
+ <script src="../../resources/glsl-generator.js"> </script>
+</head>
+<body>
+<div id="description"></div>
+<div id="console"></div>
+<script>
+
+var piConstants = [
+ "const float kPI = 3.14159265358979323846;",
+ "const float kHalfPI = (kPI * 0.5);",
+ "const float k2PI = (kPI * 2.0);"
+].join("\n");
+
+var sinImplementation = [
+ "",
+ "float sin_impl(float value) {",
+ " value = mod(value + k2PI * 10.0, k2PI);", // only positive values for now
+ " int quad = int(floor(value / kHalfPI));", // figure out which quad
+ " float p = mod(value, kHalfPI);", // from 0.0 to PI/2
+ " if (quad == 1 || quad == 3) { p = kHalfPI - p; }", // backward in quads 1,3
+ " float c = p - ",
+ " pow(p, 3.0) / (1.0 * 2.0 * 3.0) + ",
+ " pow(p, 5.0) / (1.0 * 2.0 * 3.0 * 4.0 * 5.0) - ",
+ " pow(p, 7.0) / (1.0 * 2.0 * 3.0 * 4.0 * 5.0 * 6.0 * 7.0);",
+ " if (quad == 2 || quad == 3) { c = -c; }",
+ " return c;",
+ "}"
+].join('\n');
+
+GLSLGenerator.runFeatureTest({
+ feature: "cos",
+ args: "$(type) value",
+ baseArgs: "value$(field)",
+ testFunc: "$(func)($(type))",
+ emuFunc: [
+ sinImplementation,
+ "float $(func)_base(float value) {",
+ " return sin_impl(value + kHalfPI);",
+ "}"
+ ].join("\n"),
+ gridRes: 8,
+ tolerance: 2,
+ extra: piConstants,
+ tests: [
+ ["$(output) = vec4(",
+ " $(func)($(input).x * kHalfPI + kHalfPI),",
+ " $(func)($(input).y * kHalfPI),",
+ " 0,",
+ " 1);"].join("\n"),
+ ["$(output) = vec4(",
+ " $(func)($(input).xy * vec2(kPI, k2PI)) * 0.5 + vec2(0.5, 0.5),",
+ " 0, 1);"].join("\n"),
+ ["$(output) = vec4(",
+ " $(func)($(input).xyz * vec3(kPI, k2PI, 4.0)) * ",
+ " 0.5 + vec3(0.5, 0.5, 0.5),",
+ " 1);"].join("\n"),
+ ["$(output) = ",
+ " $(func)($(input) * vec4(k2PI, 4.0, kHalfPI, kPI)) *",
+ " 0.5 + vec4(0.5, 0.5, 0.5, 1);",
+ ].join("\n")
+ ]
+});
+successfullyParsed = true;
+</script>
+</body>
+</html>
+
Property changes on: conformance/glsl/functions/glsl-function-cos.html
___________________________________________________________________
Added: svn:executable
+ *
Added: svn:eol-style
+ LF
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