third_party/webgl/sdk/tests/conformance/canvas/framebuffer-bindings-unaffected-on-resize.html - Issue 10399113: Roll webgl conformance tests to r17874: part 2, adding r17874

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Issue 10399113: Roll webgl conformance tests to r17874: part 2, adding r17874 (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/

Patch Set: Created 8 years, 7 months ago

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	1 <!--

	2

	3 /*

	4 ** Copyright (c) 2012 The Khronos Group Inc.

	5 **

	6 ** Permission is hereby granted, free of charge, to any person obtaining a

	7 ** copy of this software and/or associated documentation files (the

	8 ** "Materials"), to deal in the Materials without restriction, including

	9 ** without limitation the rights to use, copy, modify, merge, publish,

	10 ** distribute, sublicense, and/or sell copies of the Materials, and to

	11 ** permit persons to whom the Materials are furnished to do so, subject to

	12 ** the following conditions:

	13 **

	14 ** The above copyright notice and this permission notice shall be included

	15 ** in all copies or substantial portions of the Materials.

	16 **

	17 ** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

	18 ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

	19 ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

	20 ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

	21 ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

	22 ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

	23 ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.

	24 */

	25

	26 -->

	27

	28 <!DOCTYPE html>

	29 <html>

	30 <head>

	31 <meta charset="utf-8">

	32 <title>Verifies that GL framebuffer bindings do not change when canvas is resize d</title>

	33 <link rel="stylesheet" href="../../resources/js-test-style.css"/>

	34 <script src="../../resources/js-test-pre.js"></script>

	35 <script src="../resources/webgl-test.js"></script>

	36 <script src="../resources/webgl-test-utils.js"></script>

	37 </head>

	38 <body>

	39 <canvas id="example" width="4px" height="4px"></canvas>

	40 <div id="description"></div>

	41 <div id="console"></div>

	42 <script>

	43 description("Verifies that GL framebuffer bindings do not change when canvas is resized");

	44

	45 if (window.initNonKhronosFramework) {

	46 window.initNonKhronosFramework(true);

	47 }

	48

	49 var err;

	50 var wtu = WebGLTestUtils;

	51 var canvas = document.getElementById("example");

	52 var gl = wtu.create3DContext(canvas);

	53 var green = [0, 255, 0, 255];

	54 var blue = [0, 0, 255, 255];

	55 var fboSize = 2;

	56 shouldBeTrue("fboSize < canvas.width");

	57 var fbo = gl.createFramebuffer();

	58 gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);

	59 var fboTex = gl.createTexture();

	60 gl.activeTexture(gl.TEXTURE1);

	61 gl.bindTexture(gl.TEXTURE_2D, fboTex);

	62 gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, fbo Tex, 0);

	63 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, fboSize, fboSize, 0, gl.RGBA, gl.UNSIGN ED_BYTE, null);

	64 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);

	65 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);

	66 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);

	67 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);

	68 shouldBe("gl.checkFramebufferStatus(gl.FRAMEBUFFER)", "gl.FRAMEBUFFER_COMPLETE") ;

	69

	70 function checkFBO(color, msg) {

	71 wtu.checkCanvasRect(gl, 0, 0, fboSize, fboSize, color, msg);

	72 wtu.checkCanvasRect(gl, fboSize, fboSize, fboSize, fboSize, [0, 0, 0, 0], "are a outside fbo should be transparent black");

	73 }

	74

	75 // The FBO is 2x2 and it's bound so clearing should clear a 2x2 area

	76 // and calling read pixels should read the clear color in that 2x2 area

	77 // and 0,0,0,0 outside that area.

	78 //

	79 // If the FBO is no longer bound because of a WebGL implementation error

	80 // then likely the clear will clear the backbuffer and reading outside

	81 // the 2x2 area will not be 0,0,0,0

	82

	83 function test() {

	84 gl.clearColor(0, 0, 1, 1);

	85 gl.clear(gl.COLOR_BUFFER_BIT);

	86 checkFBO(blue, "should be blue");

	87 gl.clearColor(0, 1, 0, 1);

	88 gl.clear(gl.COLOR_BUFFER_BIT);

	89 checkFBO(green, "should be green");

	90 }

	91

	92 debug("test before resizing canvas");

	93 test();

	94 debug("test after resizing canvas");

	95 canvas.width = 8;

	96 test();

	97 debug("test after resizing canvas and waiting for compositing");

	98 canvas.width = 16;

	99 wtu.waitFrames(5, function() {

	100 test();

	101 finishTest();

	102 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors.");

	103 });

	104

	105 successfullyParsed = true;

	106 </script>

	107 </body>

	108 </html>

	109

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