2 <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
3 <title>Canvas test:
2d.imageData.put.modified
</title>
4 <script src=
"/resources/testharness.js"></script>
5 <script src=
"/resources/testharnessreport.js"></script>
6 <script src=
"/html/canvas/resources/canvas-tests.js"></script>
7 <link rel=
"stylesheet" href=
"/html/canvas/resources/canvas-tests.css">
8 <body class=
"show_output">
10 <h1>2d.imageData.put.modified
</h1>
11 <p class=
"desc">putImageData() puts modified image data correctly
</p>
14 <p class=
"output">Actual output:
</p>
15 <canvas id=
"c" class=
"output" width=
"100" height=
"50"><p class=
"fallback">FAIL (fallback content)
</p></canvas>
16 <p class=
"output expectedtext">Expected output:
<p><img src=
"/images/green-100x50.png" class=
"output expected" id=
"expected" alt=
"">
19 var t
= async_test("putImageData() puts modified image data correctly");
20 _addTest(function(canvas
, ctx
) {
22 ctx
.fillStyle
= '#0f0';
23 ctx
.fillRect(0, 0, 100, 50)
24 ctx
.fillStyle
= '#f00';
25 ctx
.fillRect(45, 20, 10, 10)
26 var imgdata
= ctx
.getImageData(45, 20, 10, 10);
27 for (var i
= 0, len
= imgdata
.width
*imgdata
.height
*4; i
< len
; i
+= 4)
30 imgdata
.data
[i
+1] = 255;
32 ctx
.putImageData(imgdata
, 45, 20);
33 _assertPixelApprox(canvas
, 50,25, 0,255,0,255, 2);