tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

query-uniform-blocks-after-shader-detach.html (2328B)

      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 Uniform Buffers Conformance Tests</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 id="vshader" type="x-shader/x-vertex">#version 300 es
     16 
     17 in vec4 position;
     18 
     19 uniform localInputs
     20 {
     21    mat4 projectionModelViewMatrix;
     22 };
     23 
     24 void main ()
     25 {
     26    gl_Position = projectionModelViewMatrix * position;
     27 }
     28 </script>
     29 <script id="fshader" type="x-shader/x-fragment">#version 300 es
     30 
     31 out lowp vec4 resultColor;
     32 
     33 void main()
     34 {
     35    resultColor = vec4(0,1,0,1);
     36 }
     37 </script>
     38 </head>
     39 <body>
     40 <div id="description"></div>
     41 <canvas id="canvas" style="width: 50px; height: 50px;"> </canvas>
     42 <div id="console"></div>
     43 <script>
     44 // Adopted from the test case provided in crbug.com/735784
     45 "use strict";
     46 description("This tests UBO block lookups still work after detaching shaders");
     47 
     48 debug("");
     49 
     50 var wtu = WebGLTestUtils;
     51 var canvas = document.getElementById("canvas");
     52 var gl = wtu.create3DContext(canvas, null, 2);
     53 
     54 function runTest(gl) {
     55    var program = wtu.loadProgramFromScript(gl, "vshader", "fshader");
     56    if (!program) {
     57        testFailed("Loading program failed");
     58        return;
     59    }
     60 
     61    var shaders = gl.getAttachedShaders(program);
     62    if (!shaders || shaders.length != 2) {
     63        testFailed("getAttachedShaders failed");
     64        return;
     65    }
     66    gl.detachShader (program, shaders[0]);
     67    gl.detachShader (program, shaders[1]);
     68 
     69    wtu.glErrorShouldBe(gl, gl.NO_ERROR, "No GL error from set up");
     70 
     71    var index = gl.getUniformBlockIndex(program, "localInputs");
     72    wtu.glErrorShouldBe(gl, gl.NO_ERROR, "No GL error from getUniformBlockIndex");
     73    if (index == gl.INVALID_INDEX) {
     74        testFailed("getUniformBlockIndex returns INVALID_INDEX");
     75    } else {
     76        testPassed("getUniformBlockIndex returns valid index");
     77    }
     78 }
     79 
     80 if (!gl) {
     81    testFailed("WebGL context does not exist");
     82 } else {
     83    testPassed("WebGL context exists");
     84    runTest(gl);
     85 }
     86 
     87 debug("");
     88 var successfullyParsed = true;
     89 </script>
     90 <script src="../../js/js-test-post.js"></script>
     91 
     92 </body>
     93 </html>