1255930 - Zooming out causes background image (gif) to misrender

Status: RESOLVED DUPLICATE of bug 1255675

(Core :: Graphics: ImageLib, defect)

Description

[u279076]

Attachment: Screen Shot 2016-03-11 at 4.36.08 PM.png

When zooming out all the way on planetary.org, the grid background image displays as a bunch of blocks. Ralph Giles showed me this bug initially on his Sony Z3C Android phone but this is not exclusive to Android, I can repro it on my Macbook Pro 13" Retina.

Comment 1

[Ralph Giles (:rillian)]

Attachment: Testcase

Small testcase which reproduces the issue. Load this, and zoom out as far as possible.

Note the background has to be a gif. If I use an image/png data url, I cannot reproduce the issue.

Comment 2

[u279076]

[Tracking Requested - why for this release]: Regression in background image rendering introduced in Firefox 48.

mozilla-central:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=af7c0cb0798f5425d5d344cbaf0ac0ecb1a72a86&tochange=dd1abe874252e507b825a0a4e1063b0e13578288

mozilla-inbound:
https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=5880d1449a79f790e4dbd3fedfe835bd4291d7c6&tochange=cb965dc05ec7d56b64581b6bbdb70357f6435052

Blame:
Bug 1247152 - Use SurfacePipe in the GIF decoder

Comment 3

[Ralph Giles (:rillian)]

Attachment: Testcase

Minimal testcase; the other attributes aren't necessary to reproduce, just the gif bg.

Comment 4

[Loic]

Attachment: index.gif (zoom out to reproduce)

Same issue with the logo of The Independant when you scroll the page: http://www.independent.co.uk/

Just zoom out the gif attached to the bug report.