Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(589)

Issues Search
    My Issues | Starred     Open | Closed | All

Side by Side Diff: LayoutTests/fast/canvas/script-tests/canvas-webkitImageSmoothingEnabled.js

Issue 238263005: Unprefix webkitImageSmoothingEnabled -> imageSmoothingEnabled. As webkitImageSmoothingEnabled is re… (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Fixing some errors Created 6 years, 8 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
« no previous file with comments | « LayoutTests/fast/canvas/canvas-webkitImageSmoothingEnabled-expected.txt ('k') | LayoutTests/fast/harness/results.html » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
(Empty)
1 description("Tests for the imageSmoothingEnabled attribute.");
2 var ctx = document.createElement('canvas').getContext('2d');
3
4 debug("Test that the default value is true.");
5 shouldBe("ctx.webkitImageSmoothingEnabled", "true");
6
7 debug("Test that false is returned after a the attribute is set to false.");
8 ctx.webkitImageSmoothingEnabled = false;
9 shouldBe("ctx.webkitImageSmoothingEnabled", "false");
10
11 debug("Test that restore works. We save a false state; create, then save a true state; and then finally restore.");
12 ctx.save();
13 ctx.webkitImageSmoothingEnabled = true;
14 ctx.restore();
15 shouldBe("ctx.webkitImageSmoothingEnabled", "false");
16
17 var image = document.createElement('canvas');
18 image.width = 2;
19 image.height = 1;
20
21 // We use this to colour the individual pixels
22 var dotter = ctx.createImageData(1, 1);
23
24 // Colour the left pixel black.
25 dotter.data[0] = 0;
26 dotter.data[1] = 0;
27 dotter.data[2] = 0;
28 dotter.data[3] = 255;
29 image.getContext('2d').putImageData(dotter, 0, 0);
30
31 // Colour the right pixel white.
32 dotter.data[0] = 255;
33 dotter.data[1] = 255;
34 dotter.data[2] = 255;
35 dotter.data[3] = 255;
36 image.getContext('2d').putImageData(dotter, 1, 0);
37
38
39 debug("New canvas element created.");
40 var canvas = document.createElement('canvas');
41 canvas.width = 4;
42 canvas.height = 1;
43 ctx = canvas.getContext('2d');
44 ctx.drawImage(image, 0, 0, canvas.width, canvas.height);
45 left_of_center_pixel = ctx.getImageData(1, 0, 1, 1);
46
47 debug("Test that the image is smoothed by default. We check by making sure the p ixel just to the left of the middle line is not completely black.");
48 shouldBe("left_of_center_pixel.data[0] !== 0", "true");
49 shouldBe("left_of_center_pixel.data[1] !== 0", "true");
50 shouldBe("left_of_center_pixel.data[2] !== 0", "true");
51
52 ctx.webkitImageSmoothingEnabled = false;
53 ctx.drawImage(image, 0, 0, canvas.width, canvas.height);
54 left_of_center_pixel = ctx.getImageData(1, 0, 1, 1);
55 debug("Test that nearest neighbour is used when imageSmoothingEnabled is set to false. We check this by making sure the pixel just to the left of the middle lin e is completely black.");
56 shouldBe("left_of_center_pixel.data[0]", "0");
57 shouldBe("left_of_center_pixel.data[1]", "0");
58 shouldBe("left_of_center_pixel.data[2]", "0");
59
60 ctx.webkitImageSmoothingEnabled = true;
61 ctx.drawImage(image, 0, 0, canvas.width, canvas.height);
62 left_of_center_pixel = ctx.getImageData(1, 0, 1, 1);
63 debug("Test that the image is smoothed when imageSmoothingEnabled is set to true .");
64 shouldBe("left_of_center_pixel.data[0] !== 0", "true");
65 shouldBe("left_of_center_pixel.data[1] !== 0", "true");
66 shouldBe("left_of_center_pixel.data[2] !== 0", "true");
67
68 debug("Test that restoring actually changes smoothing and not just the attribute value. We are restoring to a point where imageSmoothingEnabled is set to false. ");
69 ctx.webkitImageSmoothingEnabled = false;
70 ctx.save();
71 ctx.webkitImageSmoothingEnabled = true;
72 ctx.restore();
73 ctx.drawImage(image, 0, 0, canvas.width, canvas.height);
74 left_of_center_pixel = ctx.getImageData(1, 0, 1, 1);
75 shouldBe("left_of_center_pixel.data[0]", "0");
76 shouldBe("left_of_center_pixel.data[1]", "0");
77 shouldBe("left_of_center_pixel.data[2]", "0");
78
OLDNEW
« no previous file with comments | « LayoutTests/fast/canvas/canvas-webkitImageSmoothingEnabled-expected.txt ('k') | LayoutTests/fast/harness/results.html » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698