| <!-- |
| Copyright (c) 2021 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>Fragment shader containing loop should not crash</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="vshader" type="x-shader/x-vertex">#version 300 es |
| precision highp float; |
| out vec2 v_tex_coord; |
| uniform mat4 matrix; |
| |
| void main() { |
| v_tex_coord = vec2(0.0, 0.0); |
| gl_Position = vec4(0.0, 0.0, 0.0, 0.0); |
| } |
| </script> |
| <script id="fshader" type="x-shader/x-fragment">#version 300 es |
| precision highp float; |
| |
| in vec2 v_tex_coord; |
| out vec4 out_color; |
| |
| uniform sampler2D texture_1; |
| uniform vec2 resolution; |
| |
| vec4 do_loops(vec4 z) |
| { |
| vec4 v[16]; |
| for (int i = 0; i < 16; i++) |
| { |
| v[i] = z; |
| } |
| return v[1]; |
| } |
| |
| void main() { |
| out_color = do_loops(vec4(0.2, 0.4, 0.6, 1.0)) - texture(texture_1, v_tex_coord); |
| } |
| </script> |
| <script type="application/javascript"> |
| "use strict"; |
| description(); |
| const wtu = WebGLTestUtils; |
| const tests = [ |
| { |
| vShaderSource: wtu.getScript('vshader'), |
| fShaderSource: wtu.getScript('fshader'), |
| vShaderSuccess: true, |
| fShaderSuccess: true, |
| linkSuccess: true, |
| passMsg: 'Fragment shader containing a simple loop should compile and link' |
| } |
| ]; |
| |
| GLSLConformanceTester.runTests(tests, 2); |
| </script> |
| </body> |
| </html> |
