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-rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/rendering/default-texture-draw-bug.html | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/rendering/default-texture-draw-bug.html b/dom/canvas/test/webgl-conf/checkout/conformance/rendering/default-texture-draw-bug.html new file mode 100644 index 0000000000..0d71a0aaa5 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/rendering/default-texture-draw-bug.html @@ -0,0 +1,69 @@ +<!-- +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> |