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1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" | 1 <script src="../../resources/testharness.js"></script> |
2 "http://www.w3.org/TR/html4/loose.dtd"> | 2 <script src="../../resources/testharnessreport.js"></script> |
3 <html> | 3 |
4 <head> | |
5 <script src="../../resources/js-test.js"></script> | |
6 <style> | 4 <style> |
7 canvas { | 5 canvas { |
8 border: 1px solid #000; | 6 border: 1px solid #000; |
9 margin: 2px; | 7 margin: 2px; |
10 } | 8 } |
11 </style> | 9 </style> |
| 10 <div id="canvases"></div> |
| 11 |
12 <script> | 12 <script> |
| 13 // Visual result for debugging (test uses text baseline only): You should see si
xteen canvases with a green dot (rotated square) in the center. |
| 14 |
13 var img; | 15 var img; |
14 var imgdata; | 16 var imgdata; |
15 | 17 |
16 function imageLoaded() { | 18 function runTests() { |
17 var NUM_IMAGE = 16; | 19 var NUM_IMAGE = 16; |
18 for (var i = 0; i < NUM_IMAGE; i++) { | 20 for (var i = 0; i < NUM_IMAGE; i++) { |
19 var canvases = document.getElementById('canvases') | 21 var canvases = document.getElementById('canvases') |
20 var canvas = document.createElement('canvas'); | 22 var canvas = document.createElement('canvas'); |
21 canvas.width = 9; | 23 canvas.width = 9; |
22 canvas.height = 9; | 24 canvas.height = 9; |
23 var ctx = canvas.getContext('2d'); | 25 var ctx = canvas.getContext('2d'); |
24 | 26 |
25 var pattern = ctx.createPattern(img, 'no-repeat'); | 27 var pattern = ctx.createPattern(img, 'no-repeat'); |
26 ctx.fillStyle = pattern; | 28 ctx.fillStyle = pattern; |
27 ctx.translate(img.width / 2, img.height / 2); | 29 ctx.translate(img.width / 2, img.height / 2); |
28 var angle = 2 * Math.PI * i / NUM_IMAGE; | 30 var angle = 2 * Math.PI * i / NUM_IMAGE; |
29 ctx.rotate(angle); | 31 ctx.rotate(angle); |
30 ctx.translate(- img.width / 2, - img.height / 2); | 32 ctx.translate(- img.width / 2, - img.height / 2); |
31 ctx.fillRect(0, 0, img.width, img.height); | 33 ctx.fillRect(0, 0, img.width, img.height); |
32 | 34 |
33 var div = document.createElement('div'); | 35 var div = document.createElement('div'); |
34 div.appendChild(canvas); | 36 div.appendChild(canvas); |
35 canvases.appendChild(div); | 37 canvases.appendChild(div); |
36 | 38 |
37 var imageData = ctx.getImageData(4, 4, 1, 1); | 39 assert_array_equals(ctx.getImageData(4, 4, 1, 1).data.slice(0,3), [0, 25
5, 0]); |
38 imgdata = imageData.data; | |
39 shouldBe("imgdata[0]", "0"); | |
40 shouldBe("imgdata[1]", "255"); | |
41 shouldBe("imgdata[2]", "0"); | |
42 } | |
43 | |
44 if (window.testRunner) { | |
45 testRunner.notifyDone(); | |
46 } | 40 } |
47 } | 41 } |
48 | 42 |
49 function runTests() { | |
50 if (window.testRunner) { | |
51 testRunner.dumpAsText(); | |
52 testRunner.waitUntilDone(); | |
53 } | |
54 | 43 |
55 var patternCanvas = document.createElement('canvas'); | 44 var patternCanvas = document.createElement('canvas'); |
56 patternCanvas.width = 9; | 45 patternCanvas.width = 9; |
57 patternCanvas.height = 9; | 46 patternCanvas.height = 9; |
58 var patternCtx = patternCanvas.getContext('2d'); | 47 var patternCtx = patternCanvas.getContext('2d'); |
59 patternCtx.fillStyle = '#0F0'; | 48 patternCtx.fillStyle = '#0F0'; |
60 patternCtx.fillRect(3, 3, 3, 3); | 49 patternCtx.fillRect(3, 3, 3, 3); |
61 img = new Image(); | 50 img = new Image(); |
62 img.onload = imageLoaded; | 51 img.src = patternCanvas.toDataURL(); |
63 img.src = patternCanvas.toDataURL(); | |
64 | 52 |
65 } | 53 |
| 54 async_test(t => { |
| 55 img.onload = function() { |
| 56 t.step(runTests); |
| 57 t.done(); |
| 58 } |
| 59 }, "Test image pattern rotation."); |
66 </script> | 60 </script> |
67 </head> | |
68 <body onload="runTests();"> | |
69 Visual result below is for debugging purposes only (test uses text baseline only
). You should see sixteen canvases with a green dot (rotated square) in the cent
er. | |
70 <div id="canvases"></div> | |
71 </pre> | |
72 </body> | |
73 </html> | |
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