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uniform-buffers-second-compile.html (3053B)

      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 should work on second compile</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'>
     16 #version 300 es
     17 
     18 layout(location=0) in vec4 position;
     19 layout(std140, column_major) uniform Uniforms1 {
     20    mat4 transform;
     21 };
     22 out vec3 vColor;
     23 
     24 void main() {
     25    gl_Position = transform * position;
     26 }
     27 </script>
     28 <script id='fshader' type='x-shader/x-fragment'>
     29 #version 300 es
     30 precision highp float;
     31 
     32 layout(std140) uniform Uniforms2 {
     33    vec4 color;
     34 };
     35 out vec4 fragColor;
     36 
     37 void main(){
     38    fragColor = color;
     39 }
     40 </script>
     41 </head>
     42 <body>
     43 <div id="description"></div>
     44 <canvas id="canvas" style="width: 50px; height: 50px;"> </canvas>
     45 <div id="console"></div>
     46 <script>
     47 "use strict";
     48 description("This test verifies that getUniformBlockIndex isn't broken on second compile.");
     49 
     50 debug("This is a regression test for <a href='http://crbug.com/716018'>http://crbug.com/716018</a>");
     51 debug("");
     52 
     53 var wtu = WebGLTestUtils;
     54 var canvas = document.getElementById("canvas");
     55 var gl = wtu.create3DContext(canvas, null, 2);
     56 
     57 // Initialize
     58 gl.clearColor(0, 0, 0, 1);
     59 var vsSource = document.getElementById("vshader").text.trim();
     60 var fsSource = document.getElementById("fshader").text.trim();
     61 
     62 function runTest() {
     63    // Run twice to make sure that the second build does not cause errors
     64    // (i.e. due to caching).
     65    for (var i = 0; i < 2; ++i) {
     66        debug("Compile/test iteration " + i);
     67 
     68        var vertexShader = gl.createShader(gl.VERTEX_SHADER);
     69        gl.shaderSource(vertexShader, vsSource);
     70        gl.compileShader(vertexShader);
     71        // Note: if COMPILE_STATUS is retrieved here, it hides the bug.
     72 
     73        var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);
     74        gl.shaderSource(fragmentShader, fsSource);
     75        gl.compileShader(fragmentShader);
     76        // Note: if COMPILE_STATUS is retrieved here, it hides the bug.
     77 
     78        var program = gl.createProgram();
     79        gl.attachShader(program, vertexShader);
     80        gl.attachShader(program, fragmentShader);
     81        gl.linkProgram(program);
     82 
     83        gl.useProgram(program);
     84 
     85        var uniforms1Location = gl.getUniformBlockIndex(program, "Uniforms1");
     86        gl.uniformBlockBinding(program, uniforms1Location, 0);
     87        wtu.glErrorShouldBe(gl, gl.NO_ERROR, "uniforms1Location was " + uniforms1Location);
     88 
     89        var uniforms2Location = gl.getUniformBlockIndex(program, "Uniforms2");
     90        gl.uniformBlockBinding(program, uniforms2Location, 1);
     91        wtu.glErrorShouldBe(gl, gl.NO_ERROR, "uniforms2Location was " + uniforms2Location);
     92 
     93        debug("");
     94    }
     95 }
     96 
     97 runTest();
     98 
     99 var successfullyParsed = true;
    100 </script>
    101 
    102 <script src="../../js/js-test-post.js"></script>
    103 </body>
    104 </html>