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6 commits

Author SHA1 Message Date
Keith Packard
950021f881 Clip rectangles are not necessarily YSorted 
None of the cairo clipping computations guarantee that the resulting
list of rectangles are constructed in any particular order. Promising
that they are results in an X error (BadMatch) which generally causes
applications to crash.

I suspect this may well be implicated in many (many) bug reports about
applications which use cairo.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
 2011-12-06 18:06:28 +00:00
Chris Wilson
2c4f6bbfbc gl: Prevent the traps compositor from exploding 
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
 2011-11-24 10:16:22 +00:00
Chris Wilson
e217677ce6 xlib: ADD only reduces to SOURCE for alpha-only targets 
Fixes operator.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
 2011-11-23 14:57:35 +00:00
Chris Wilson
10ebda8698 xlib: Reduce the composite traps operator for when the dest is clear 
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
 2011-10-14 13:23:02 +01:00
Uli Schlachter
e3131242b2 xlib-xcb: Make this compile again 
Signed-off-by: Uli Schlachter <psychon@znc.in>
 2011-09-14 15:50:19 +02:00
Chris Wilson
af9fbd176b Introduce a new compositor architecture 
Having spent the last dev cycle looking at how we could specialize the
compositors for various backends, we once again look for the
commonalities in order to reduce the duplication. In part this is
motivated by the idea that spans is a good interface for both the
existent GL backend and pixman, and so they deserve a dedicated
compositor. xcb/xlib target an identical rendering system and so they
should be using the same compositor, and it should be possible to run
that same compositor locally against pixman to generate reference tests.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

P.S. This brings massive upheaval (read breakage) I've tried delaying in
order to fix as many things as possible but now this one patch does far,
far, far too much. Apologies in advance for breaking your favourite
backend, but trust me in that the end result will be much better. :)
 2011-09-12 08:29:48 +01:00