dom/canvas/test/webgl-conf/checkout/conformance2/glsl3/array-complex-indexing.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 Indexing complex array expressions</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 <!--
  21 Array indexing is detailed in the ESSL 3.00 spec section 5.9
  22 ESSL 3.00 revisions after 3.00.4 changed the definition from 'subscripted array names' to 'subscripted arrays'
  23 -->
  24 <script id="fshader-assignment" type="x-shader/x-fragment">#version 300 es
  25 precision mediump float;
  26 out vec4 color;
  27
  28 void main() {
  29   float a[2] = float[2](0.0, 0.0);
  30   float b[2] = float[2](2.0, 1.0);
  31   float c = (a = b)[0];
  32   color = (c == 2.0) ? vec4(0, 1.0, 0, 1.0) : vec4(1.0, 0, 0, 1.0);
  33 }
  34 </script>
  35 <script id="fshader-function" type="x-shader/x-fragment">#version 300 es
  36 precision mediump float;
  37 out vec4 color;
  38 bool hasRan = false;
  39
  40 float[2] functionReturnArray() {
  41   hasRan = true;
  42   return float[2](2.0, 1.0);
  43 }
  44
  45 void main() {
  46   float c = (functionReturnArray())[0];
  47   color = ((c == 2.0) && hasRan) ? vec4(0, 1.0, 0, 1.0) : vec4(1.0, 0, 0, 1.0);
  48 }
  49 </script>
  50 <script id="fshader-array-initialization" type="x-shader/x-fragment">#version 300 es
  51 precision mediump float;
  52 out vec4 color;
  53
  54 void main() {
  55   float a = (float[3](2.0, 1.0, 0.0))[0];
  56   color = (a == 2.0) ? vec4(0, 1.0, 0, 1.0) : vec4(1.0, 0, 0, 1.0);
  57 }
  58 </script>
  59 <script type="application/javascript">
  60 "use strict";
  61 description("Indexing complex array expressions");
  62 debug("");
  63
  64 GLSLConformanceTester.runRenderTests([
  65 {
  66   fShaderId: 'fshader-assignment',
  67   fShaderSuccess: true,
  68   linkSuccess: true,
  69   passMsg: 'Test indexing a variable assignment: (a = b)[0]'
  70 },
  71 {
  72   fShaderId: 'fshader-function',
  73   fShaderSuccess: true,
  74   linkSuccess: true,
  75   passMsg: 'Test indexing a function return with a side-effect: (functionReturnArray())[0]'
  76 },
  77 {
  78   fShaderId: 'fshader-array-initialization',
  79   fShaderSuccess: true,
  80   linkSuccess: true,
  81   passMsg: 'Test indexing an array initialization: (float[3](2.0, 1.0, 0.0))[0]'
  82 },
  83 ], 2);
  84
  85 </script>
  86 </body>
  87 </html>