| <!-- |
| 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>WebGL GLSL Conformance Tests</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-conformance-test.js"></script> |
| </head> |
| <body> |
| <div id="description"></div> |
| <div id="console"></div> |
| <script id="fragmentShader" type="text/something-not-javascript"> |
| // A matrix constructor with two writes and reads to the same variable inside it in different parameters must succeed "mat2(index++, vec4(index++))" |
| // ESSL 1.00 spec section 5.4 Constructors: "Arguments are evaluated from left to right." |
| precision mediump float; |
| bool equal(mat2 m1, mat2 m2) |
| { |
| float EPSILON = 0.00001; |
| for (int i = 0; i < 2; i++) { |
| for (int j = 0; j < 2; j++) { |
| if (abs(m1[i][j] - m2[i][j]) > EPSILON) |
| return false; |
| } |
| } |
| return true; |
| } |
| void main() |
| { |
| int i = 0; |
| mat2 m = mat2(i++, vec4(i++)); |
| if (equal(m, mat2(0, 1, 1, 1))) |
| gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0); |
| else |
| gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0); |
| } |
| </script> |
| |
| <script> |
| "use strict"; |
| GLSLConformanceTester.runRenderTest(); |
| var successfullyParsed = true; |
| </script> |
| </body> |
| </html> |
