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.
Additionally, protect libcw setup behind checks for Render, to avoid
segfaulting if Render isn't available (xnest).
The previous setup was an ABI-preserving dance, which is better nuked now.
Now, anything that needs libcw must explicitly initialize it, and
miDisableCompositeWrapper (previously only called by EXA and presumably binary
drivers) is gone.
- Merge various fb/ bits of COMPOSITE support from xserver, which weren't
necessary before due to cw hiding the issues. Fixes offset calculations
for a number of operations, and may pull some fixes that cairo has
wanted for XAA as well.
- Add a new call, miDisableCompositeWrapper(), which a DDX can call to keep
cw from getting initialized from the damage code. While it would be
cleaner to have each DDX initialize it if it needs it, we don't have
control over all of them (e.g. nvidia).
- Use the miDisableCompositeWrapper() to keep cw from getting set up for
screens using EXA, because EXA is already aware of composite. Avoiding
cw improved performance 0-35% on operations tested by ajax in x11perf.
Add XSERV_t, TRANS_SERVER, TRANS_REOPEN to quash warnings.
Add #include <dix-config.h> or <xorg-config.h>, as appropriate, to all
source files in the xserver/xorg tree, predicated on defines of
HAVE_{DIX,XORG}_CONFIG_H. Change all Xfont includes to
<X11/fonts/foo.h>.
- Fix wrapping of GC ops/funcs according to policy described in bug #1045.
- Remove ValidateGC/ValidatePictures on the redirected drawables/pictures
-- it's not needed, and DDXs shouldn't be seeing redirected drawables
in render or GC ops/funcs when cw is running.
- Mark all GC/Picture state as dirty when moving from redirected to
non-redirected, since it hadn't been passed down in Change* or
Validate* while redirected.
- Remove CreatePicture wrapper that didn't do anything.
- Comment on why AddTraps wrapper isn't needed.
the flagged bits from a source picture. Approved in principle by
keithp.
- Use CopyPicture and SetTransform to update most of the backing picture's
state in the composite wrapper. Filters are still missing.
- Don't allocate a picture private, now that we calculate clipping properly
and don't need the serialNumber or stateChanges.
- Use the format of the source pixmap rather than generating the format
from the window's visual.
- Wrap the rest of the Render primitives that were stubbed out before.
appears stable in limited testing.
- Allocate the picture private, avoiding segfault.
- Wrap PaintWindow to draw the background/border to the backing pixmap
(based on Deron Johnson's comptran.c).
- Set the x_off/y_off returns to translate coordinates properly.
- Don't bother allocating temporary areas for the modified coordinates.
Layers above are responsible for handling lower layers changing the
arguments, so cw doesn't have to worry about it. mibstore.c has to do
the allocation because it calls down twice (front buffer and backing
store). (Suggested by keithp)
- Handle the mode argument to PolyPoint, Polylines, and FillPolygon.
- Remove some dead elements in the cw privates.
- Kill a prototype warning in compinit.c by adding the cw.h header.
has several issues, including:
- CopyWindow and PaintWindow wrappers missing (will be done soon)
- Some segfaults seen in the Render wrappers.
- Xprt server build breaks with Composite.
- DDXs must be recompiled for Composite due to VisualRec size change.
- Composite bugs pointed out by Deron Johnson in email.
Also, reorder XFixes initialization according to comments by Keith which
are also in xserver CVS.
