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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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