| <!-- |
| Copyright (c) 2019 The Khronos Group Inc. |
| Use of this source code is governed by an MIT-style license that can be |
| found in the LICENSE.txt file. |
| --> |
| |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>WebGL Default Texture Draw Bug Conformance Tests</title> |
| <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| <script src="../../js/js-test-pre.js"></script> |
| <script src="../../js/webgl-test-utils.js"></script> |
| |
| </head> |
| <body> |
| <canvas id="c"></canvas> |
| <div id="description"></div> |
| <div id="console"></div> |
| <script> |
| "use strict"; |
| description("This test attempts to provoke a Chrome bug that occured when drawing with textures when one was never bound. <a href='http://crbug.com/524144'>crbug.com/524144</a>"); |
| |
| debug(""); |
| |
| var wtu = WebGLTestUtils; |
| var gl = wtu.create3DContext("c"); |
| var canvas = gl.canvas; |
| |
| if (!gl) { |
| testFailed("WebGL context does not exist"); |
| } else { |
| testPassed("WebGL context exists"); |
| |
| runDrawTests(); |
| |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors"); |
| } |
| |
| function runDrawTests(drawType) { |
| debug("Test that drawing with a texture when no textures have been bound gives the expected black output"); |
| canvas.width = 50; canvas.height = 50; |
| gl.viewport(0, 0, canvas.width, canvas.height); |
| |
| // Set up a program that will draw with a texture |
| var program = wtu.setupNoTexCoordTextureProgram(gl); |
| |
| wtu.setupIndexedQuad(gl); |
| for (var i = 0 ; i < 100 && _bufferedConsoleLogs != null; ++i) { |
| // Clear to white. |
| gl.clearColor(1.0, 1.0, 1.0, 1.0); |
| gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); |
| |
| // Draw without binding any textures. |
| gl.drawElements(gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0); |
| |
| // Check to ensure the entire canvas is black. |
| wtu.checkCanvasRect(gl, 0.0, 0.0, canvas.width, canvas.height, |
| [0.0, 0.0, 0.0], "Draw should pass", 2); |
| } |
| } |
| |
| debug(""); |
| var successfullyParsed = true; |
| </script> |
| <script src="../../js/js-test-post.js"></script> |
| |
| </body> |
| </html> |