dom/canvas/test/webgl-conf/checkout/conformance/glsl/bugs/vector-scalar-arithmetic-inside-loop-complex.html

   1 <!--
   2 Copyright (c) 2019 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>GLSL vector/scalar arithmetic inside a for loop (complex cases)</title>
  12 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
  13 <script src="../../../js/js-test-pre.js"></script>
  14 <script src="../../../js/webgl-test-utils.js"></script>
  15 <script src="../../../js/glsl-conformance-test.js"></script>
  16 </head>
  17 <body>
  18 <div id="description"></div>
  19 <div id="console"></div>
  20 <script id="fShaderVectorCompoundMulAndAddInSeparateStatementsInsideForLoop" type="x-shader/x-fragment">
  21 precision mediump float;
  22
  23 void main() {
  24   gl_FragColor = vec4(0.0, 0.0, 0.0, 0.0);
  25   for (int i = 0; i < 2; i++)
  26   {
  27     float x = gl_FragCoord.x;
  28     float y = (x *= 2.0);
  29     gl_FragColor = gl_FragColor + vec4(y, y, y, y);
  30   }
  31   if (gl_FragColor.g == gl_FragColor.r &&
  32       gl_FragColor.b == gl_FragColor.r &&
  33       gl_FragColor.a == gl_FragColor.r)
  34   {
  35     gl_FragColor = vec4(0, 1, 0, 1);
  36   }
  37 }
  38 </script>
  39 <script id="fShaderVectorCompoundMulAndAddInSeparateStatementsInsideForLoop2" type="x-shader/x-fragment">
  40 precision mediump float;
  41
  42 void main() {
  43   gl_FragColor = vec4(0.0, 0.0, 0.0, 0.0);
  44   for (int i = 0; i < 2; i++)
  45   {
  46     float x = gl_FragCoord.x;
  47     float y = (x *= 2.0);
  48     gl_FragColor = gl_FragColor + vec4(x, y, x, y);
  49   }
  50   if (gl_FragColor.g == gl_FragColor.r &&
  51       gl_FragColor.b == gl_FragColor.r &&
  52       gl_FragColor.a == gl_FragColor.r)
  53   {
  54     gl_FragColor = vec4(0, 1, 0, 1);
  55   }
  56 }
  57 </script>
  58 <script type="text/javascript">
  59 "use strict";
  60 description();
  61
  62 // See http://crbug.com/772651
  63
  64 GLSLConformanceTester.runRenderTests([
  65 {
  66   fShaderId: 'fShaderVectorCompoundMulAndAddInSeparateStatementsInsideForLoop',
  67   fShaderSuccess: true,
  68   linkSuccess: true,
  69   passMsg: "Adding a vector that's just 4 copies of a scalar to another vector inside for loop should work."
  70 },
  71 {
  72   fShaderId: 'fShaderVectorCompoundMulAndAddInSeparateStatementsInsideForLoop2',
  73   fShaderSuccess: true,
  74   linkSuccess: true,
  75   passMsg: "Adding a vector that's just 4 copies of a scalar stored in two different variables to another vector inside for loop should work."
  76 }
  77 ]);
  78 </script>
  79 </body>
  80 </html>