dom/canvas/test/webgl-conf/checkout/conformance/uniforms/uniform-samplers-test.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>WebGL sampler uniforms conformance 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 </head>
  16 <body>
  17 <canvas id="example" width="2" height="2" style="width: 40px; height: 40px;"></canvas>
  18 <div id="description"></div>
  19 <div id="console"></div>
  20
  21 <script>
  22 "use strict";
  23 function init()
  24 {
  25   description(
  26       "Tests that only Uniform1i and Uniform1iv can be used to set" +
  27       "sampler uniforms.");
  28
  29   var canvas2d = document.getElementById("canvas2d");
  30
  31   var wtu = WebGLTestUtils;
  32   var gl = wtu.create3DContext("example");
  33   var program = wtu.setupTexturedQuad(gl);
  34
  35   var textureLoc = gl.getUniformLocation(program, "tex");
  36
  37   gl.uniform1i(textureLoc, 1);
  38   wtu.glErrorShouldBe(gl, gl.NO_ERROR,
  39       "uniform1i can set a sampler uniform");
  40   gl.uniform1iv(textureLoc, [1]);
  41   wtu.glErrorShouldBe(gl, gl.NO_ERROR,
  42       "uniform1iv can set a sampler uniform");
  43   gl.uniform1f(textureLoc, 1);
  44   wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION,
  45       "uniform1f returns INVALID_OPERATION if attempting to set a sampler uniform");
  46   gl.uniform1fv(textureLoc, [1]);
  47   wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION,
  48       "uniform1fv returns INVALID_OPERATION if attempting to set a sampler uniform");
  49
  50   var maxTextureUnits = gl.getParameter(gl.MAX_COMBINED_TEXTURE_IMAGE_UNITS);
  51
  52   var testUniformi = function() {
  53     var success = true;
  54     for (var ii = 0; ii < maxTextureUnits; ++ii) {
  55       gl.uniform1i(textureLoc, ii);
  56       success = success && (gl.getError() == gl.NO_ERROR);
  57     }
  58     expectTrue(success, "uniform1i works for any valid texture unit");
  59   };
  60
  61   var testUniformiv = function() {
  62     var success = true;
  63     for (var ii = 0; ii < maxTextureUnits; ++ii) {
  64       gl.uniform1iv(textureLoc, [ii]);
  65       success = success && (gl.getError() == gl.NO_ERROR);
  66     }
  67     expectTrue(success, "uniform1iv works for any valid texture unit");
  68   };
  69
  70   var steps = [
  71     testUniformi,
  72     testUniformiv,
  73   ];
  74
  75   var generateInvalidUniformiTests = function(start, end) {
  76     return function() {
  77       var success = true;
  78       for (var ii = start; ii < end; ++ii) {
  79         gl.uniform1i(textureLoc, ii);
  80         success = success && (gl.getError() == gl.INVALID_VALUE);
  81       }
  82       expectTrue(success, "uniform1i generates INVALID_VALUE for invalid texture units 0x" + start.toString(16) + " to 0x" + end.toString(16));
  83     };
  84   };
  85
  86   var generateInvalidUniformivTests = function(start, end) {
  87     return function() {
  88       var success = true;
  89       for (var ii = start; ii < end; ++ii) {
  90         gl.uniform1iv(textureLoc, [ii]);
  91         success = success && (gl.getError() == gl.INVALID_VALUE);
  92       }
  93       expectTrue(success, "uniform1iv generates INVALID_VALUE for invalid texture units 0x" + start.toString(16) + " to 0x" + end.toString(16));
  94     };
  95   };
  96
  97   var step = 0x1000;
  98   for (var ii = maxTextureUnits; ii < 0x10000; ii += step) {
  99     steps.push(generateInvalidUniformiTests(ii, ii + step));
 100     steps.push(generateInvalidUniformivTests(ii, ii + step));
 101   }
 102
 103   steps.push(finishTest);
 104   wtu.runSteps(steps);
 105 }
 106
 107 init();
 108 var successfullyParsed = true;
 109 </script>
 110 </body>
 111 </html>