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Chris Wilson 57fc09cef2 Avoid fallbacks for a1 src/mask 
Carl Worth did the hard work in identifying that the regression in
cairo between X.org 1.6 and 1.7 was caused by cairo sending an a1
mask to the server in 1.7 whereas in 1.6 cairo used local fallbacks
(as the source was using RepeatPad, which triggers cairo's
'buggy_pad_reflect' fallback for X.org 1.6). This was causing the driver
to do a fallback to handle the a1 mask instead, which due to the GPU
pipeline stall is much more expensive than the equivalent fallback in
cairo.

Reference:
  cairo's performance downgrades 4X with server master than server-1.6.
  https://bugs.freedesktop.org/show_bug.cgi?id=23184

The fix is a relatively simple extension of the current
uxa_picture_from_pixman_image() to use CompositePicture() instead of
CopyArea() when we need to convert to a new format.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
 		2009-09-20 01:15:41 +01:00
m4 Add shave support, enabled by default. 2009-03-13 16:15:44 -07:00
man intel.man: Mark NoAccel option as i810/i815 only 2009-07-11 22:53:11 -07:00
src Don't destroy bufmgr at CloseScreen time 2009-09-17 18:16:02 -07:00
uxa Avoid fallbacks for a1 src/mask 2009-09-20 01:15:41 +01:00
.gitignore Add shave support, enabled by default. 2009-03-13 16:15:44 -07:00
AUTHORS AUTHORS: Add Robert Lowery to the authors file 2009-04-15 18:07:17 -07:00
COPYING Stub COPYING files 2005-12-19 16:25:53 +00:00
Makefile.am Add doltlibtool to DISTCLEANFILES 2009-04-28 20:42:22 -07:00
NEWS NEWS: Add notes for the 2.8.99.901 snapshot 2009-09-09 09:27:01 -07:00
README README: kill an evil dot 2009-05-14 14:04:52 -07:00
RELEASING RELEASING: Fix typo in instructions 2009-07-13 05:27:40 -07:00
autogen.sh Update autogen.sh to one that does objdir != srcdir. 2005-08-18 09:03:47 +00:00
configure.ac Update version to 2.8.99.901 for snapshot. 2009-09-09 09:32:48 -07:00
shave-libtool.in Add shave support, enabled by default. 2009-03-13 16:15:44 -07:00
shave.in Add shave support, enabled by default. 2009-03-13 16:15:44 -07:00

README 

xf86-video-intel
Open-source X.org graphics driver for Intel graphics
http://www.intellinuxgraphics.com/

What is xf86-video-intel
------------------------
The xf86-video-intel module is an open-source 2D graphics driver for
the X Window System as implemented by X.org. It supports a variety of
Intel graphics chipsets including:

	i810/i810e/i810-dc100,i815,
	i830M,845G,852GM,855GM,865G,
	915G/GM,945G/GM/GME,946GZ
	G/GM/GME/Q965,
	G/Q33,G/Q35,G41,G/Q43,G/GM/Q45

Where to get more information about the driver
----------------------------------------------
The primary source of information about this and other open-source
drivers for Intel graphics is:

	http://intellinuxgraphics.org/

Documentation specific to the xf86-video-intel driver including
possible configuration options for the xorg.conf file can be found in
the intel(4) manual page. After installing the driver this
documentation can be read with the following command:

	man intel

Mailing list for communication with users and developers of
xf86-video-intel:

	intel-gfx@lists.freedesktop.org

	Note: Subscription is required before posting, but anyone is
	free to subscribe. See instructions (and archives) here:

	http://lists.freedesktop.org/mailman/listinfo/intel-gfx

To report bugs encountered with the driver, see:

	http://intellinuxgraphics.org/how_to_report_bug.html

To see bugs that are targeted to be fixed in the next release:

	https://bugs.freedesktop.org/show_bug.cgi?id=intel-2d-release