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1 <!-- | |
2 Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
3 Use of this source code is governed by a BSD-style license that can be | |
4 found in the LICENSE file. | |
5 --> | |
6 <!DOCTYPE html> | |
7 <html> | |
8 <head> | |
9 <meta charset="utf-8"> | |
10 <title>GLSL sign function test</title> | |
11 <link rel="stylesheet" href="../../../resources/js-test-style.css"/> | |
12 <link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/> | |
13 <script src="../../../resources/js-test-pre.js"></script> | |
14 <script src="../../resources/webgl-test.js"> </script> | |
15 <script src="../../resources/webgl-test-utils.js"> </script> | |
16 <script src="../../resources/glsl-generator.js"> </script> | |
17 </head> | |
18 <body> | |
19 <div id="description"></div> | |
20 <div id="console"></div> | |
21 <script> | |
22 GLSLGenerator.runFeatureTest({ | |
23 feature: "sign", | |
24 testFunc: "$(func)($(arg0))", | |
25 emuFunc: ["float $(func)_base(float value) {", | |
26 " if (value == 0.0) return 0.0;", | |
27 " return value > 0.0 ? 1.0 : -1.0;", | |
28 "}"].join("\n"), | |
29 gridRes: 4, | |
30 tests: [ | |
31 ["$(output) = vec4(", | |
32 " $(func)($(input).x * 2.0 - 1.0) * 0.5 + 0.5,", | |
33 " 0.5,", | |
34 " 0,", | |
35 " 1);"].join("\n"), | |
36 ["$(output) = vec4(", | |
37 " $(func)($(input).xy * 2.0 - vec2(1, 1)) * 0.5 + vec2(0.5, 0.5),", | |
38 " 0, 1);"].join("\n"), | |
39 ["$(output) = vec4(", | |
40 " $(func)($(input).xyz * 2.0 - vec3(1, 1, 1)) * 0.5 + ", | |
41 " vec3(0.5, 0.5, 0.5),", | |
42 " 1);"].join("\n"), | |
43 ["$(output) = ", | |
44 " $(func)($(input) * 2.0 - vec4(1, 1, 1, 1)) * 0.5 + ", | |
45 " vec4(0.5, 0.5, 0.5, 0.5);"].join("\n") | |
46 ] | |
47 }); | |
48 successfullyParsed = true; | |
49 </script> | |
50 </body> | |
51 </html> | |
52 | |
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