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