[Webkit-unassigned] [Bug 17022] Add APNG support

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=17022


Max Stepin <maxstepin at yahoo.com> changed:

           What    |Removed                     |Added
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 Attachment #196541|0                           |1
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--- Comment #15 from Max Stepin <maxstepin at yahoo.com>  2014-08-06 14:36:17 PST ---
Created an attachment (id=236137)
 --> (https://bugs.webkit.org/attachment.cgi?id=236137&action=review)
 v03_apng_webkit.patch

I rewrote the APNG support code, please take a look.

This version decodes APNG using only standard libpng (turns out it's possible).

I also added test files: a dozen small animations that would play once, and finish asap. After a short delay a pixel-test can be compared against the expected result. It covers most of the apng features at different png colortypes.

I'm going to ask GTK port people, and will try to contact other ports too.


P.S. Safari's own implementation of APNG might benefit from the test suite too.

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