uninitialized-local-global-variables.html (2862B)
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>Uninitialized local/global variables should be initialized (ESSL 3.00 cases)</title> 12 <link rel="stylesheet" href="../../resources/js-test-style.css"/> 13 <link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/> 14 <script src="../../js/js-test-pre.js"></script> 15 <script src="../../js/webgl-test-utils.js"> </script> 16 17 <!-- 18 This test covers cases that can't be tested with ESSL 1.00 due to Appendix A limitations. 19 The ESSL 1.00 cases are covered in conformance/glsl/misc/uninitialized-local-global-variables.html 20 --> 21 22 <script id="vs_uninit_in_frag" type="x-shader/x-vertex">#version 300 es 23 precision highp float; 24 in vec4 a_position; 25 void main() { 26 gl_Position = a_position; 27 } 28 </script> 29 30 <!-- Uninitialized variables in a for loop initializer in fragment shader --> 31 <script id="fs_uninit_variables_in_loop_in_frag" type="x-shader/x-fragment">#version 300 es 32 precision highp float; 33 out vec4 my_FragColor; 34 void main() { 35 int i = 0; 36 for (vec4 uninit, uninit2[2] = vec4[2](uninit, uninit); i < 1; ++i) { 37 my_FragColor = uninit2[0]; 38 } 39 } 40 </script> 41 42 <!-- Uninitialized nameless struct in a for loop initializer in fragment shader --> 43 <script id="fs_uninit_nameless_struct_in_loop_in_frag" type="x-shader/x-fragment">#version 300 es 44 precision highp float; 45 out vec4 my_FragColor; 46 void main() { 47 int i = 0; 48 for (struct { vec4 v; } uninit; i < 1; ++i) { 49 my_FragColor = uninit.v; 50 } 51 } 52 </script> 53 54 </head> 55 <body> 56 <canvas id="canvas" width="50" height="50"></canvas> 57 <div id="description"></div> 58 <div id="console"></div> 59 <script> 60 "use strict"; 61 description('Uninitialized local/global variables should be initialized: http://anglebug.com/1966'); 62 63 var wtu = WebGLTestUtils; 64 var gl = wtu.create3DContext("canvas", undefined, 2); 65 wtu.setupUnitQuad(gl); 66 67 var cases = [ 68 { 69 name: "Uninitialized variables in a for loop initializer in fragment shader", 70 prog: ["vs_uninit_in_frag", "fs_uninit_variables_in_loop_in_frag"], 71 }, 72 { 73 name: "Uninitialized nameless struct in a for loop initializer in fragment shader", 74 prog: ["vs_uninit_in_frag", "fs_uninit_nameless_struct_in_loop_in_frag"], 75 } 76 ]; 77 78 function runTest() { 79 for (var i = 0; i < cases.length; ++i) { 80 debug(""); 81 debug(cases[i].name); 82 var program = wtu.setupProgram(gl, cases[i].prog, ["a_position"], undefined, true); 83 gl.clearColor(1.0, 0.0, 0.0, 1.0); 84 wtu.clearAndDrawUnitQuad(gl); 85 wtu.checkCanvas(gl, [0, 0, 0, 0]); 86 } 87 88 debug(""); 89 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors"); 90 } 91 92 runTest(); 93 94 var successfullyParsed = true; 95 </script> 96 <script src="../../js/js-test-post.js"></script> 97 </body> 98 </html>