dom/canvas/test/webgl-conf/checkout/conformance2/glsl3/matrix-row-major-dynamic-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>Dynamically-indexed row-major matrix test</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="fshaderIndexRowMajorMatrixArrayInUniformBlock" type="x-shader/x-fragment">#version 300 es
  21 precision mediump float;
  22
  23 out vec4 my_FragColor;
  24
  25 uniform int u_zero;
  26
  27 layout(row_major) uniform a {
  28     mat4 u_mats[1];
  29 };
  30
  31 void main() {
  32     float f = u_mats[u_zero + 0][2][1];
  33     my_FragColor = vec4(1.0 - f, f, 0.0, 1.0);
  34 }
  35 </script>
  36 <script id="fshaderRowMatrixIndexedByRowMatrixInUniformBlock" type="x-shader/x-fragment">#version 300 es
  37 precision mediump float;
  38
  39 uniform Stuff {
  40   layout(row_major) mat4 u_mat[3];
  41   layout(row_major) mat4 u_ndx[3];
  42 } stuff;
  43
  44
  45 out vec4 my_FragColor;
  46
  47 void main() {
  48   vec4 row = stuff.u_mat[int(stuff.u_ndx[1][1][3])][2];
  49   my_FragColor = row == vec4(9, 10, 11, 12) ? vec4(0, 1, 0, 1) : vec4(1, 0, 0, 1);
  50 }
  51 </script>
  52 <script type="application/javascript">
  53 "use strict";
  54 description("Indexing row-major matrices within a uniform block should work");
  55
  56 GLSLConformanceTester.runRenderTests([
  57 {
  58   fShaderId: 'fshaderIndexRowMajorMatrixArrayInUniformBlock',
  59   fShaderSuccess: true,
  60   linkSuccess: true,
  61   passMsg: '',
  62   uniformBlocks: [{name: "a", value: new Float32Array([
  63     0, 0, 0, 0,
  64     0, 0, 1, 0,
  65     0, 0, 0, 0,
  66     0, 0, 0, 0,
  67   ])}],
  68 },
  69 {
  70   fShaderId: 'fshaderRowMatrixIndexedByRowMatrixInUniformBlock',
  71   fShaderSuccess: true,
  72   linkSuccess: true,
  73   passMsg: '',
  74   uniformBlocks: [{name: "Stuff", value: new Float32Array([
  75     // mat4 u_mat[3]
  76      1,  2,  3,  4,
  77      5,  6,  7,  8,
  78      9, 10, 11, 12,
  79     13, 14, 15, 16,
  80
  81          //  +-- we should be pulling out this column
  82          //  |
  83          //  V
  84      1,  5,  9, 13,
  85      2,  6, 10, 14,
  86      3,  7, 11, 15,
  87      4,  8, 12, 16,
  88
  89      2, 10, 18, 22,
  90      4, 12, 20, 28,
  91      6, 14, 22, 30,
  92      8, 16, 24, 32,
  93
  94     // mat4 u_ndx[3]
  95     0, 0, 0, 0,
  96     0, 0, 0, 0,
  97     0, 0, 0, 0,
  98     0, 0, 0, 0,
  99
 100     0, 0, 0, 0,
 101     0, 0, 0, 2,
 102     0, 0, 0, 0,
 103     0, 1, 0, 0,
 104     // ^
 105     // |
 106     // +-- we should be reading this value as an index into u_mat
 107
 108     0, 0, 0, 0,
 109     0, 0, 0, 0,
 110     0, 0, 0, 0,
 111     0, 0, 0, 0,
 112   ])}],
 113 }
 114 ], 2);
 115 </script>
 116 </body>
 117 </html>
 118