| <!-- |
| Copyright (c) 2019 The Khronos Group Inc. |
| Use of this source code is governed by an MIT-style license that can be |
| found in the LICENSE.txt file. |
| --> |
| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>GLSL sign function test</title> |
| <link rel="stylesheet" href="../../../resources/js-test-style.css"/> |
| <link rel="stylesheet" href="../../../resources/glsl-feature-tests.css"/> |
| <script src="../../../js/js-test-pre.js"></script> |
| <script src="../../../js/webgl-test-utils.js"> </script> |
| <script src="../../../js/glsl-generator.js"> </script> |
| </head> |
| <body> |
| <div id="description"></div> |
| <div id="console"></div> |
| <script> |
| "use strict"; |
| GLSLGenerator.runFeatureTest({ |
| feature: "sign", |
| testFunc: "$(func)($(arg0))", |
| emuFunc: ["float $(func)_base(float value) {", |
| " if (value == 0.0) return 0.0;", |
| " return value > 0.0 ? 1.0 : -1.0;", |
| "}"].join("\n"), |
| gridRes: 4, |
| tests: [ |
| ["$(output) = vec4(", |
| " $(func)($(input).x * 2.0 - 1.0) * 0.5 + 0.5,", |
| " 0.5,", |
| " 0,", |
| " 1);"].join("\n"), |
| ["$(output) = vec4(", |
| " $(func)($(input).xy * 2.0 - vec2(1, 1)) * 0.5 + vec2(0.5, 0.5),", |
| " 0, 1);"].join("\n"), |
| ["$(output) = vec4(", |
| " $(func)($(input).xyz * 2.0 - vec3(1, 1, 1)) * 0.5 + ", |
| " vec3(0.5, 0.5, 0.5),", |
| " 1);"].join("\n"), |
| ["$(output) = ", |
| " $(func)($(input) * 2.0 - vec4(1, 1, 1, 1)) * 0.5 + ", |
| " vec4(0.5, 0.5, 0.5, 0.5);"].join("\n") |
| ] |
| }); |
| var successfullyParsed = true; |
| </script> |
| </body> |
| </html> |
