gl-unknown-uniform.html (1721B)
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 Unknown Uniform 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 <div id="description"></div> 18 <div id="console"></div> 19 <canvas id="canvas" width="2" height="2"> </canvas> 20 <script id="vshader" type="x-shader/x-vertex"> 21 attribute vec4 vPosition; 22 void main() 23 { 24 gl_Position = vPosition; 25 } 26 </script> 27 28 <script id="fshader" type="x-shader/x-fragment"> 29 void main() 30 { 31 gl_FragColor = vec4(1.0,0.0,0.0,1.0); 32 } 33 </script> 34 <script> 35 "use strict"; 36 description("Tests that unknown uniforms don't cause errors."); 37 38 debug(""); 39 debug("Canvas.getContext"); 40 41 var wtu = WebGLTestUtils; 42 var gl = wtu.create3DContext("canvas"); 43 if (!gl) { 44 testFailed("context does not exist"); 45 } else { 46 testPassed("context exists"); 47 48 debug(""); 49 50 var program = wtu.setupProgram(gl, ["vshader", "fshader"], ["vPosition"]); 51 // Get the location of an unknown uniform. 52 var loc = gl.getUniformLocation(program, "someUnknownUniform"); 53 assertMsg(loc === null, "location of unknown uniform should be null"); 54 wtu.glErrorShouldBe(gl, gl.NO_ERROR, 55 "there should be no error from getting an unknown uniform"); 56 gl.uniform1f(loc, 1); 57 wtu.glErrorShouldBe(gl, gl.NO_ERROR, 58 "there should be no error from trying to set an unknown uniform"); 59 } 60 61 debug(""); 62 var successfullyParsed = true; 63 </script> 64 <script src="../../js/js-test-post.js"></script> 65 66 </body> 67 </html>