4 ** Copyright (c) 2012 The Khronos Group Inc.
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:
14 ** The above copyright notice and this permission notice shall be included
15 ** in all copies or substantial portions of the Materials.
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.
30 <meta charset="utf-8">
31 <title>WebGL toDataURL test</title>
32 <link rel="stylesheet" href="../../resources/js-test-style.css"/>
33 <script src="../../resources/js-test-pre.js"></script>
34 <script src="../resources/webgl-test-utils.js"> </script>
37 <canvas width="20" height="20" style="border: 1px solid black; width: 16px; height: 16px" id="c3d"></canvas>
38 <canvas width="20" height="20" style="border: 1px solid black; width: 16px; height: 16px" id="c2d"></canvas>
39 <div id="description"></div>
40 <div id="console"></div>
41 <script type="text/javascript">
42 var wtu = WebGLTestUtils;
47 var main = function() {
49 ctx = document.getElementById("c2d").getContext("2d");
50 gl = wtu.create3DContext("c3d");
53 testFailed("can't create 3d context");
57 var clearRect = function(gl, x, y, width, height, color) {
58 gl.clearColor(color[0] / 255, color[1] / 255, color[2] / 255, color[3] / 255);
59 gl.scissor(x, y, width, height);
60 gl.clear(gl.COLOR_BUFFER_BIT);
63 var testSize = function(gl, width, height, callback) {
64 debug("testing " + width + " by " + height);
65 gl.canvas.width = width;
66 gl.canvas.height = height;
67 gl.viewport(0, 0, width, height);
68 gl.enable(gl.SCISSOR_TEST);
70 var bottomColor = [255, 0, 0, 255];
71 var topColor = [0, 255, 0, 255];
72 var rightColor = [0, 0, 255, 255];
73 var halfHeight = Math.floor(height / 2);
74 var topHeight = height - halfHeight;
75 var canvasTopHeight = height - topHeight;
76 clearRect(gl, 0, 0, width, halfHeight, bottomColor);
77 clearRect(gl, 0, halfHeight, width, topHeight, topColor);
78 clearRect(gl, width - 1, 0, 1, height, rightColor);
80 var img = new Image();
81 img.onload = function() {
82 ctx.canvas.width = width;
83 ctx.canvas.height = height;
84 ctx.drawImage(img, 0, 0);
85 wtu.checkCanvasRect(ctx, 0, 0, width - 1, topHeight, topColor);
86 wtu.checkCanvasRect(ctx, 0, topHeight, width - 1, halfHeight, bottomColor);
87 wtu.checkCanvasRect(ctx, width - 1, 0, 1, height, rightColor);
91 img.src = gl.canvas.toDataURL();
95 { width: 16 , height: 16 , },
96 { width: 16 - 1, height: 16 , },
97 { width: 16 - 1, height: 16 - 1, },
98 { width: 16 + 1, height: 16 - 1, },
99 { width: 16 - 1, height: 16 + 1, },
100 { width: 256 , height: 256 , },
101 { width: 256 - 1, height: 256 , },
102 { width: 256 - 1, height: 256 - 1, },
103 { width: 256 + 1, height: 256 - 1, },
104 { width: 256 - 1, height: 256 + 1, },
105 { width: 512 , height: 512 , },
106 { width: 512 - 1, height: 512 , },
107 { width: 512 - 1, height: 512 - 1, },
108 { width: 512 + 1, height: 512 - 1, },
109 { width: 512 - 1, height: 512 + 1, },
112 var runNextTest = function() {
113 if (testIndex == tests.length) {
117 var test = tests[testIndex++];
118 testSize(gl, test.width, test.height, function() {
119 setTimeout(runNextTest, 100);
125 var successfullyParsed = true;