dom/canvas/test/webgl-conf/checkout/conformance2/glsl3/fragment-shader-loop-crash.html

   1 <!--
   2 Copyright (c) 2021 The Khronos Group Inc.
   3 Use of this source code is governed by an MIT-style license that can be
   4 found in the LICENSE.txt file.
   5 -->
   6
   7 <!DOCTYPE html>
   8 <html>
   9 <head>
  10 <meta charset="utf-8">
  11 <title>Fragment shader containing loop should not crash</title>
  12 <link rel="stylesheet" href="../../resources/js-test-style.css"/>
  13 <link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
  14 <script src="../../js/js-test-pre.js"></script>
  15 <script src="../../js/webgl-test-utils.js"></script>
  16 <script src="../../js/glsl-conformance-test.js"></script>
  17 </head>
  18 <body>
  19 <div id="description"></div>
  20 <div id="console"></div>
  21 <script id="vshader" type="x-shader/x-vertex">#version 300 es
  22 precision highp float;
  23 out vec2 v_tex_coord;
  24 uniform mat4 matrix;
  25
  26 void main() {
  27    v_tex_coord = vec2(0.0, 0.0);
  28    gl_Position = vec4(0.0, 0.0, 0.0, 0.0);
  29 }
  30 </script>
  31 <script id="fshader" type="x-shader/x-fragment">#version 300 es
  32 precision highp float;
  33
  34 in vec2 v_tex_coord;
  35 out vec4 out_color;
  36
  37 uniform sampler2D texture_1;
  38 uniform vec2 resolution;
  39
  40 vec4 do_loops(vec4 z)
  41 {
  42     vec4 v[16];
  43     for (int i = 0; i < 16; i++)
  44     {
  45         v[i] = z;
  46     }
  47     return v[1];
  48 }
  49
  50 void main() {
  51     out_color = do_loops(vec4(0.2, 0.4, 0.6, 1.0)) - texture(texture_1, v_tex_coord);
  52 }
  53 </script>
  54 <script type="application/javascript">
  55 "use strict";
  56 description();
  57 const wtu = WebGLTestUtils;
  58 const tests = [
  59     {
  60         vShaderSource: wtu.getScript('vshader'),
  61         fShaderSource: wtu.getScript('fshader'),
  62         vShaderSuccess: true,
  63         fShaderSuccess: true,
  64         linkSuccess: true,
  65         passMsg: 'Fragment shader containing a simple loop should compile and link'
  66     }
  67 ];
  68
  69 GLSLConformanceTester.runTests(tests, 2);
  70 </script>
  71 </body>
  72 </html>