[cairo] pixman BGRA support

[Soeren Sandmann]

Mark Kettenis <kettenis at openbsd.org> writes:

> Hi,
> 
> I'm trying to make Xorg work on a Tech Source Raptor GFX-8M graphics
> card on OpenBSD/sparc64.  This card is based on the Number 9 I128-II
> chip, which has a little-endian framebuffer, that essentially uses
> ARGB pixel representation.  However, since I'm using it on a
> big-endian machine, the pixel representation as seen by the host CPU
> is BGRA.  As far as I can tell, the graphics hardware does not support
> byte swapping in hardware like the ATI cards that Sun used in many of
> their PCI framebuffers.
> 
> The diff below adds BGRA support to pixman.  I have diffs for Xrender
> and cairo as well, that make firefox work fine (without them the most
> obvious problem is that text seems to be drawn on a yellow
> background).

Thanks, pushed.

Soren