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Issue 20748002: Blob creation methods for ImageBitmap. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Use IntRect() instead of IntRect(0, 0, 0, 0) Created 7 years, 4 months ago
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1 <html> 1 <html>
2 <body> 2 <body>
3 <script> 3 <script>
4 if (window.testRunner) 4 if (window.testRunner)
5 window.testRunner.waitUntilDone(); 5 window.testRunner.waitUntilDone();
6 6
7 function shouldNotBeCalled() { 7 function shouldNotBeCalled() {
8 testFailed("Promise was rejected."); 8 testFailed("Promise was rejected.");
9 finishJSTest(); 9 finishJSTest();
10 } 10 }
11 11
12 var aCanvas = document.createElement('canvas'); 12 var aCanvas = document.createElement('canvas');
13 aCanvas.setAttribute('width', '10'); 13 aCanvas.setAttribute('width', '10');
14 aCanvas.setAttribute('height', '10'); 14 aCanvas.setAttribute('height', '10');
15 var aCtx = aCanvas.getContext('2d'); 15 var aCtx = aCanvas.getContext('2d');
16 aCtx.fillStyle = 'green'; 16 aCtx.fillStyle = 'rgb(0, 255, 0)';
17 aCtx.fillRect(0, 0, 20, 20); 17 aCtx.fillRect(0, 0, 20, 20);
18 18
19 var bCanvas = document.createElement('canvas'); 19 var bCanvas = document.createElement('canvas');
20 bCanvas.setAttribute('width', '10'); 20 bCanvas.setAttribute('width', '10');
21 bCanvas.setAttribute('height', '10'); 21 bCanvas.setAttribute('height', '10');
22 var bCtx = bCanvas.getContext('2d'); 22 var bCtx = bCanvas.getContext('2d');
23 bCtx.fillStyle = 'red'; 23 bCtx.fillStyle = 'red';
24 bCtx.fillRect(0, 0, 20, 20); 24 bCtx.fillRect(0, 0, 20, 20);
25 25
26 var canvas = document.createElement('canvas'); 26 var canvas = document.createElement('canvas');
27 canvas.setAttribute('width', '40'); 27 canvas.setAttribute('width', '50');
28 canvas.setAttribute('height', '30'); 28 canvas.setAttribute('height', '30');
29 var ctx = canvas.getContext('2d'); 29 var ctx = canvas.getContext('2d');
30 document.body.appendChild(canvas); 30 document.body.appendChild(canvas);
31 31
32 var image = new Image(); 32 var image = new Image();
33 image.onload = imageLoaded; 33 image.onload = imageLoaded;
34 image.src = aCanvas.toDataURL(); 34 image.src = aCanvas.toDataURL();
35 35
36 var d; 36 var d;
37 37
38 var imageLoaded = false;
39 var blobLoaded = false;
40
38 function imageLoaded() { 41 function imageLoaded() {
39 d = aCtx.getImageData(0, 0, 10, 10); 42 imageLoaded = true;
40 createImageBitmap(image).then(callback('Image'), shouldNotBeCalled); 43 loaded();
41 createImageBitmap(d).then(callback('Data'), shouldNotBeCalled);
42 createImageBitmap(aCanvas).then(callback('Canvas'), shouldNotBeCalled);
43 } 44 }
44 45
45 var imageBitmapImage, imageBitmapData, imageBitmapCanvas; 46 var xhr = new XMLHttpRequest();
46 var i = 0; 47 xhr.open("GET", 'resources/pattern.png');
48 xhr.responseType = 'blob';
49 xhr.send();
50 xhr.onload = function() {
51 blob = xhr.response;
52 blobLoaded = true;
53 loaded();
54 }
55
56 function loaded() {
57 if (imageLoaded && blobLoaded) {
58 d = aCtx.getImageData(0, 0, 10, 10);
59 createImageBitmap(image).then(callback('Image'));
60 createImageBitmap(d).then(callback('Data'));
61 createImageBitmap(aCanvas).then(callback('Canvas'));
62 // The blob image has a green square at (x,y,w,h) = (10, 0, 10, 10).
63 createImageBitmap(blob, 10, 0, 10, 10).then(callback('Blob'));
64 }
65 }
66
67 var imageBitmaps = {};
68
47 function callback(name) { 69 function callback(name) {
48 var name = name; 70 var name = name;
49 return function(imageBitmap) { 71 return function(imageBitmap) {
50 switch(name) { 72 switch(name) {
51 case 'Image': 73 case 'Image':
52 imageBitmapImage = imageBitmap; 74 imageBitmaps.image = imageBitmap;
53 image.onload = draw(imageBitmapImage); 75 image.onload = function() {
76 ctx.drawImage(imageBitmaps.image, 0, 0);
77 checkIfDone();
78 };
54 image.src = bCanvas.toDataURL(); 79 image.src = bCanvas.toDataURL();
55 createImageBitmap(imageBitmapImage).then(callback('ImageBitmapImage' , shouldNotBeCalled)); 80 createImageBitmap(imageBitmaps.image).then(callback('ImageBitmapImag e'));
56 break; 81 break;
57 case 'Data': 82 case 'Data':
58 imageBitmapData = imageBitmap; 83 imageBitmaps.data = imageBitmap;
59 d = 0; 84 d = 0;
60 ctx.drawImage(imageBitmapData, 11, 0); 85 ctx.drawImage(imageBitmaps.data, 11, 0);
61 createImageBitmap(imageBitmapData).then(callback('ImageBitmapData', shouldNotBeCalled)); 86 createImageBitmap(imageBitmaps.data).then(callback('ImageBitmapData' ));
62 checkIfDone(); 87 checkIfDone();
63 break; 88 break;
64 case 'Canvas': 89 case 'Canvas':
65 imageBitmapCanvas = imageBitmap; 90 imageBitmaps.canvas = imageBitmap;
66 aCtx.clearRect(0, 0, 10, 10); 91 aCtx.clearRect(0, 0, 10, 10);
67 ctx.drawImage(imageBitmapCanvas, 22, 0); 92 ctx.drawImage(imageBitmaps.canvas, 22, 0);
68 createImageBitmap(imageBitmapCanvas).then(callback('ImageBitmapCanva s', shouldNotBeCalled)); 93 createImageBitmap(imageBitmaps.canvas).then(callback('ImageBitmapCan vas'));
94 checkIfDone();
95 break;
96 case 'Blob':
97 imageBitmaps.blob = imageBitmap;
98 blob = 0;
99 ctx.drawImage(imageBitmaps.blob, 33, 0);
100 createImageBitmap(imageBitmaps.blob).then(callback('ImageBitmapBlob' ));
69 checkIfDone(); 101 checkIfDone();
70 break; 102 break;
71 case 'ImageBitmapImage': 103 case 'ImageBitmapImage':
72 imageBitmapImage = 0; 104 imageBitmaps.image = 0;
73 ctx.drawImage(imageBitmap, 0, 11); 105 ctx.drawImage(imageBitmap, 0, 11);
74 checkIfDone(); 106 checkIfDone();
75 break; 107 break;
76 case 'ImageBitmapData': 108 case 'ImageBitmapData':
77 d = 0; 109 d = 0;
78 imageBitmapData = 0; 110 imageBitmaps.data = 0;
79 ctx.drawImage(imageBitmap, 11, 11); 111 ctx.drawImage(imageBitmap, 11, 11);
80 checkIfDone(); 112 checkIfDone();
81 break; 113 break;
82 case 'ImageBitmapCanvas': 114 case 'ImageBitmapCanvas':
83 aCtx.clearRect(0, 0, 10, 10); 115 aCtx.clearRect(0, 0, 10, 10);
84 imageBitmapCanvas = 0; 116 imageBitmaps.canvas = 0;
85 ctx.drawImage(imageBitmap, 22, 11); 117 ctx.drawImage(imageBitmap, 22, 11);
86 checkIfDone(); 118 checkIfDone();
87 break; 119 break;
120 case 'ImageBitmapBlob':
121 aCtx.clearRect(0, 0, 10, 10);
122 imageBitmaps.blob = 0;
123 ctx.drawImage(imageBitmap, 33, 11);
124 checkIfDone();
125 break;
88 } 126 }
89 } 127 }
90 } 128 }
91 129
92 function draw(imageBitmap) { 130 var checkNum = 0;
93 ctx.drawImage(imageBitmap, 0, 0);
94 checkIfDone();
95 }
96
97 function checkIfDone() { 131 function checkIfDone() {
98 if (++i == 6 && window.testRunner) 132 if (++checkNum == 8 && window.testRunner)
99 window.testRunner.notifyDone(); 133 window.testRunner.notifyDone();
100 } 134 }
101 135
102 </script> 136 </script>
103 <p>There should be 6 green squares displayed in a 2 row by 3 column grid.</p> 137 <p>There should be 8 green squares displayed in a 2 row by 4 column grid.</p>
104 </body> 138 </body>
105 </html> 139 </html>
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