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1 <!-- | |
2 Copyright (C) 2009 Apple Computer, Inc. All rights reserved. | |
3 | |
4 Redistribution and use in source and binary forms, with or without | |
5 modification, are permitted provided that the following conditions | |
6 are met: | |
7 1. Redistributions of source code must retain the above copyright | |
8 notice, this list of conditions and the following disclaimer. | |
9 2. Redistributions in binary form must reproduce the above copyright | |
10 notice, this list of conditions and the following disclaimer in the | |
11 documentation and/or other materials provided with the distribution. | |
12 | |
13 THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
14 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
15 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
16 PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
17 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
18 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
19 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
20 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
21 OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
22 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
23 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
24 --> | |
25 | |
26 <!DOCTYPE html> | |
27 <html> | |
28 <head> | |
29 <meta charset="utf-8"> | |
30 <title>Canvas Compositing Test</title> | |
31 <link rel="stylesheet" href="../resources/js-test-style.css"/> | |
32 <script src="../resources/js-test-pre.js"></script> | |
33 <script src="../conformance/resources/webgl-test.js"> </script> | |
34 </head> | |
35 <body> | |
36 Below are 2 50x50 pixel canvas but using CSS to display them at 100x100 pixels.
<br/> | |
37 They are solid black with a red triangle<br/> | |
38 They each have a 10px CSS solid black border around them.<br/> | |
39 Depending on how the browser composites the canvas with the page they will get | |
40 a white outline<hr/> | |
41 <div> | |
42 2d canvas<br/> | |
43 <canvas id="example2" width="50" height="50" style="width: 100px; height: 100px;
border: 10px solid black;"></canvas> | |
44 </div> | |
45 <hr/> | |
46 3d canvas<br/> | |
47 <div> | |
48 <canvas id="example" width="50" height="50" style="width: 100px; height: 100px;
border: 10px solid black;"></canvas> | |
49 </div> | |
50 <hr/> | |
51 img tag<br/> | |
52 <img src="50x50pixel-black-with-red-triangle.png" style="width: 100px; height: 1
00px; border: 10px solid black;"/> | |
53 <div id="description"></div> | |
54 <div id="console"></div> | |
55 <script id="vshader" type="x-shader/x-vertex"> | |
56 attribute vec4 vPosition; | |
57 void main() | |
58 { | |
59 gl_Position = vPosition; | |
60 } | |
61 </script> | |
62 | |
63 <script id="fshader" type="x-shader/x-fragment"> | |
64 void main() | |
65 { | |
66 gl_FragColor = vec4(1.0,0.0,0.0,1.0); | |
67 } | |
68 </script> | |
69 | |
70 <script> | |
71 function fail(x,y, buf, shouldBe) | |
72 { | |
73 var i = (y*50+x) * 4; | |
74 var reason = "pixel at ("+x+","+y+") is ("+buf[i]+","+buf[i+1]+","+b
uf[i+2]+","+buf[i+3]+"), should be "+shouldBe; | |
75 testFailed(reason); | |
76 } | |
77 | |
78 function pass() | |
79 { | |
80 testPassed("drawing is correct"); | |
81 } | |
82 | |
83 function init() | |
84 { | |
85 var canvas2d = document.getElementById("example2"); | |
86 var ctx2d = canvas2d.getContext("2d"); | |
87 ctx2d.fillStyle = "rgba(0, 0, 0, 255)" | |
88 ctx2d.fillRect(0, 0, 50, 50); | |
89 ctx2d.fillStyle = "rgba(255, 0, 0, 255)" | |
90 ctx2d.beginPath(); | |
91 ctx2d.moveTo(25, 12.5); | |
92 ctx2d.lineTo(12.5, 37.5); | |
93 ctx2d.lineTo(37.5, 37.5); | |
94 ctx2d.lineTo(25, 12.5); | |
95 ctx2d.fill(); | |
96 | |
97 | |
98 if (window.initNonKhronosFramework) { | |
99 window.initNonKhronosFramework(false); | |
100 } | |
101 | |
102 gl = initWebGL("example", "vshader", "fshader", [ "vPosition"], [ 0,
0, 0, 1 ], 1); | |
103 gl.viewport(0, 0, 50, 50); | |
104 | |
105 var vertexObject = gl.createBuffer(); | |
106 gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); | |
107 gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ 0,0.5,0, -0.5,-0.5
,0, 0.5,-0.5,0 ]), gl.STATIC_DRAW); | |
108 gl.enableVertexAttribArray(0); | |
109 gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0); | |
110 | |
111 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); | |
112 gl.drawArrays(gl.TRIANGLES, 0, 3); | |
113 } | |
114 | |
115 init(); | |
116 successfullyParsed = true; | |
117 </script> | |
118 </body> | |
119 <script src="../resources/js-test-post.js"></script> | |
120 | |
121 <script> | |
122 </script> | |
123 | |
124 </body> | |
125 </html> | |
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