[cairo-bugs] [Bug 43397] EXTEND_NONE is used instead of EXTEND_PAD when src sample area is entirely within the surface

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=43397

--- Comment #7 from Karl Tomlinson <bugs.freedesktop at karlt.net> 2011-12-06 14:18:35 PST ---
It looks like the relevant code was added in the commit
http://cgit.freedesktop.org/cairo/commit/?id=c0af8c70635d641fc5770afc0cd6e9285122fd72
but it is not clear to me from the comment exactly which situations this would
optimize.

It seems that RepeatNone is the default because early versions (before
RENDER_MINOR 10) didn't have RepeatPad.  Perhaps this is necessary for backward
compatibility reasons, but I can't think of a reason for anyone choosing to use
RepeatNone.

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