Jeff Muizelaar cfce24e060 Bug 801918. OpenGL: Avoid doing extra invalidation when unrotating a buffer. r=mwoodrow
This approach ends up calling BlitTextureImage three extra times instead of
changing BlitTextureImage to support rotated buffers.

Supporting rotated buffers in BlitTextureImage is somewhat tricky because of
TiledTextureImage, and calling it three more times shouldn't be too bad (it
should be better than having to repaint)

Unfortunately, the rectangle manipulation code is a bit hairy.

--HG--
extra : rebase_source : a1018a22932675b154b76533f403a1328aa29cb5
2012-11-13 15:09:31 -08:00
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