[Webkit-unassigned] [Bug 15974] Public GIF image decoder does not handle disposal of previous frames correctly

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=15974


zerodpx at gmail.com changed:

           What    |Removed                     |Added
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  Attachment #17320|                            |review?
               Flag|                            |




------- Comment #5 from zerodpx at gmail.com  2007-11-16 14:18 PDT -------
Created an attachment (id=17320)
 --> (http://bugs.webkit.org/attachment.cgi?id=17320&action=view)
patch v1

This patch makes all the above attached images work correctly.  It also calls
ensureHeight() in a more consistent way (we don't ensureHeight(m_size.height())
on some frames before decoding anything the way we did before) and calls
setHasAlpha() correctly (although a bit conservatively -- we might claim to
have alpha when we don't, but never the other way), which was trickier with the
new initialization code.


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