[cairo] Bringing back the dead... RGB16_565

Carl Worth cworth at cworth.org
Fri May 18 13:12:13 PDT 2007


On Thu, 17 May 2007 09:15:49 -0400, David Hill wrote:
> 3. cairo-xlib-surface.c:_cairo_xlib_surface_add_glyph
>
> Again, do we really need Xlib support? I have been dinking around with X
> for more than a few years (though Keith Packard has me beat) and can't
> ever recall seeing a 565 format (Though Dec did have "true color" format
> in 8 bits-332RGB, never did figure out why). Given that, unless there is
> a compelling test case reason, I don't see why the library can not just
> assert failure when it is not supported/appropriate.

Actually, we do have some assertion statements about unsupported xlib
image formats in the code already. And people do hit them and report
bugs. I really just want to make all of these bugs go away.

Here are some of the current bug reports:

	Cairo doesn't support 565 xlib visual
	https://bugs.freedesktop.org/show_bug.cgi?id=10461

	Cairo doesn't support 655 xlib format
	https://bugs.freedesktop.org/show_bug.cgi?id=9719

	Cairo fails with 555 X server visual
	https://bugs.freedesktop.org/show_bug.cgi?id=9993

	cairo doesn't support 8-bit truecolor visuals
	https://bugs.freedesktop.org/show_bug.cgi?id=7735

	Cairo doesn't support 8-bit pseudocolor visuals
	https://bugs.freedesktop.org/show_bug.cgi?id=4945

-Carl
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