"An experimental pseudocolor emulation layer. Not fully completed,
currently only works for 16bpp." That was almost four years ago.
It still doesn't work, only one driver even attempts to use it, it
contains an ad-hoc implementation of damage, and should really be
done up in Composite now anyway.
These hints allow an acceleration architecture to optimize allocation of certain
types of pixmaps, such as pixmaps that will serve as backing pixmaps for
redirected windows.
* fb/fbcmap_mi.c:
(fbSetVisualTypesAndMasks): added this entry point that was missing.
This is useful so that servers using this entry point can use fbcmap_mi.c,
and be obliged to stick to fbcmap.c. Note that fbcmap.c does implement this
entry point. Up to now, kdrive based server could not use fbcmap_mi.c because this
entry point was missing. The will allow Xephyr to properly use GL.
This was an attempt to avoid scratch gc creation and validation for paintwin
because that was expensive. This is not the case in current servers, and the
danger of failure to implement it correctly (as seen in all previous
implementations) is high enough to justify removing it. No performance
difference detected with x11perf -create -move -resize -circulate on Xvfb.
Leave the screen hooks for PaintWindow* in for now to avoid ABI change.
over to new system.
Need to update documentation and address some remaining vestiges of
old system such as CursorRec structure, fb "offman" structure, and
FontRec privates.
Composite's automatic redirection is a more general mechanism than the
ad-hoc BS machinery, so it's much prettier to implement the one in terms
of the other. Composite now wraps ChangeWindowAttributes and activates
automatic redirection for windows with backing store requested. The old
backing store infrastructure is completely gutted: ABI-visible structures
retain the function pointers, but they never get called, and all the
open-coded conditionals throughout the DIX layer to implement BS are gone.
Note that this is still not a strictly complete implementation of backing
store, since Composite will throw the bits away on unmap and therefore
WhenMapped and Always hints are equivalent.
The pixman headers have been located under pixman-1/ instead of pixman/ since
around 2007-08-06, and pixman-1.pc has the updated include paths to account
for this.
This reverts commit feb1b3e455.
Don't call fbFinishWrap until the pixman_image_t that stores the pointer is
actually freed. This prevents corruption or crashes caused by accessing a
wrapped pointer after the wrapping is torn down.
