dom/canvas/test/webgl-conf/checkout/conformance/uniforms/null-uniform-location.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 <link rel="stylesheet" href="../../resources/js-test-style.css"/>
  12 <script src="../../js/js-test-pre.js"></script>
  13 <script src="../../js/webgl-test-utils.js"></script>
  14 </head>
  15 <body>
  16 <div id="description"></div>
  17 <div id="console"></div>
  18
  19 <script>
  20 "use strict";
  21 description("Tests calling the various uniform[Matrix]* APIs with a null uniform location");
  22
  23 var wtu = WebGLTestUtils;
  24 var gl = wtu.create3DContext();
  25 var program = wtu.loadStandardProgram(gl);
  26
  27 wtu.glErrorShouldBe(gl, gl.NO_ERROR);
  28 shouldBeUndefined("gl.useProgram(program)");
  29 var floatArray = new Float32Array([1, 2, 3, 4]);
  30 var intArray = new Int32Array([1, 2, 3, 4]);
  31
  32 function callUniformFunction(name) {
  33   var isArrayVariant = (name.charAt(name.length - 1) == 'v');
  34   var isMatrix = (name.indexOf("Matrix") != -1);
  35   var isFloat =
  36       (name.charAt(name.length - 1) == 'f' ||
  37        name.charAt(name.length - 2) == 'f');
  38   var sizeIndex = (isArrayVariant ? name.length - 3 : name.length - 2);
  39   var size = parseInt(name.substring(sizeIndex, sizeIndex + 1));
  40   // Initialize argument list with null uniform location
  41   var args = [ null ];
  42   if (isArrayVariant) {
  43     // Call variant which takes values as array
  44     if (isMatrix) {
  45       size = size * size;
  46       args.push(false);
  47     }
  48     var array = (isFloat ? new Float32Array(size) : new Int32Array(size));
  49     for (var i = 0; i < size; i++) {
  50       array[i] = i;
  51     }
  52     args.push(array);
  53   } else {
  54     // Call variant which takes values as parameters
  55     for (var i = 0; i < size; i++) {
  56       args.push(i);
  57     }
  58   }
  59   var func = gl[name];
  60   return func.apply(gl, args);
  61 }
  62
  63 var funcs = [ "uniform1f", "uniform1fv", "uniform1i", "uniform1iv",
  64               "uniform2f", "uniform2fv", "uniform2i", "uniform2iv",
  65               "uniform3f", "uniform3fv", "uniform3i", "uniform3iv",
  66               "uniform4f", "uniform4fv", "uniform4i", "uniform4iv",
  67               "uniformMatrix2fv", "uniformMatrix3fv", "uniformMatrix4fv" ];
  68 var callString;
  69
  70 for (var i = 0; i < funcs.length; i++) {
  71   callString = "callUniformFunction('" + funcs[i] + "')";
  72   shouldBeUndefined(callString);
  73   wtu.glErrorShouldBe(gl, gl.NO_ERROR);
  74 }
  75
  76 var successfullyParsed = true;
  77 </script>
  78 <script src="../../js/js-test-post.js"></script>
  79
  80 </body>
  81 </html>