third_party/WebKit/LayoutTests/fast/canvas/webgl/null-uniform-location.html

   1 <html>
   2 <head>
   3 <script src="../../../resources/js-test.js"></script>
   4 <script src="resources/webgl-test.js"></script>
   5 </head>
   6 <body>
   7 <div id="description"></div>
   8 <div id="console"></div>
   9
  10 <script>
  11 description("Tests calling the various uniform[Matrix]* APIs with a null uniform location");
  12
  13 var gl = create3DContext();
  14 var program = loadStandardProgram(gl);
  15
  16 shouldBe("gl.getError()", "gl.NO_ERROR");
  17 shouldBeUndefined("gl.useProgram(program)");
  18 var floatArray = new Float32Array([1, 2, 3, 4]);
  19 var intArray = new Int32Array([1, 2, 3, 4]);
  20
  21 function callUniformFunction(name) {
  22   var isArrayVariant = (name.charAt(name.length - 1) == 'v');
  23   var isMatrix = (name.indexOf("Matrix") != -1);
  24   var isFloat =
  25       (name.charAt(name.length - 1) == 'f' ||
  26        name.charAt(name.length - 2) == 'f');
  27   var sizeIndex = (isArrayVariant ? name.length - 3 : name.length - 2);
  28   var size = parseInt(name.substring(sizeIndex, sizeIndex + 1));
  29   // Initialize argument list with null uniform location
  30   var args = [ null ];
  31   if (isArrayVariant) {
  32     // Call variant which takes values as array
  33     if (isMatrix) {
  34       size = size * size;
  35       args.push(false);
  36     }
  37     var array = (isFloat ? new Float32Array(size) : new Int32Array(size));
  38     for (var i = 0; i < size; i++) {
  39       array[i] = i;
  40     }
  41     args.push(array);
  42   } else {
  43     // Call variant which takes values as parameters
  44     for (var i = 0; i < size; i++) {
  45       args.push(i);
  46     }
  47   }
  48   var func = gl[name];
  49   return func.apply(gl, args);
  50 }
  51
  52 var funcs = [ "uniform1f", "uniform1fv", "uniform1i", "uniform1iv",
  53               "uniform2f", "uniform2fv", "uniform2i", "uniform2iv",
  54               "uniform3f", "uniform3fv", "uniform3i", "uniform3iv",
  55               "uniform4f", "uniform4fv", "uniform4i", "uniform4iv",
  56               "uniformMatrix2fv", "uniformMatrix3fv", "uniformMatrix4fv" ];
  57 for (var i = 0; i < funcs.length; i++) {
  58   callString = "callUniformFunction('" + funcs[i] + "')";
  59   shouldBeUndefined(callString);
  60   shouldBe("gl.getError()", "gl.NO_ERROR");
  61 }
  62 </script>
  63
  64 </body>
  65 </html>