[cairo] [PATCH] pixman: Implement PIXMAN_REPEAT_REFLECT for images

[Thomas Jaeger]

In the case of EXTEND_REFLECT, it won't work at all unless the driver
accelerates it, since pixman currently doesn't have support for REFLECT
at all.  I've attached a patch that addresses the issue (hope this is
the right mailing list).  Caveats: I wasn't familiar with the pixman
source.  When it didn't work right away after changing
pixman-transformed.c, I simply made sure that REFLECT uses the same path
as PAD everywhere.  This isn't very well-tested (I basically just tested
 [2]) and there's probably room for optimization, but I doubt REFLECT is
used very much anyway.


Zack Weinberg wrote:
> ... because whether or not Render's equivalent of
> EXTEND_PAD/EXTEND_REFLECT actually *work* is dependent on the exact
> version of your X server and video drivers.  Render protocol 0.10 isn't
> good enough.  There are some cairo-only test cases in [2].
> 
> [2] https://bugzilla.mozilla.org/show_bug.cgi?id=468496

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