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Chris Wilson f52b6e8322 uxa: Rearrange checking and preparing of composite textures. 
x11perf regression caused by 2D driver
  https://bugs.freedesktop.org/show_bug.cgi?id=28047

caused by

  commit a7b800513f
  uxa: Extract sub-region from in-memory buffers.

The issue is that as we extract the region prior to checking whether the
composite can in fact be accelerated, we perform expensive surplus
operations. This is particularly noticeable for ComponentAlpha text,
such as rgb10text. The solution here is to rearrange the
check_composite() prior to acquiring the sources, and only extracting
the subregion if the render path can not actually handle the texture.

Performance (on PineView):
a7b800513^: aa=68600 glyphs/s, rgb=29900 glyphs/s
a7b800513: aa=65700 glyphs/s, rgb=13200 glyphs/s
now: aa=66800 glyph/s, rgb=28800 glyphs/s

The residual lossage seems to be from the extra function call and
dixPrivate lookups. Hmm. More warning is the extremely low performance,
however the results are consistent so the improvement looks real...

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
 		2010-05-10 10:36:14 +01:00
man man: Update list of available 'sclaing mode' property values. 2010-03-22 14:16:25 -07:00
src uxa: Rearrange checking and preparing of composite textures. 2010-05-10 10:36:14 +01:00
uxa uxa: Rearrange checking and preparing of composite textures. 2010-05-10 10:36:14 +01:00
.gitignore .gitignore: use common defaults with custom section # 24239 2009-11-14 09:23:55 -05:00
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 Makefile.am: add ChangeLog and INSTALL on MAINTAINERCLEANFILES 2009-11-23 09:25:05 -05:00
NEWS NEWS: Add release notes for the 2.11.0 release. 2010-03-29 11:23:03 -07:00
README Take note for Pineview support in README and manpage 2010-01-04 14:15:41 -08:00
RELEASING Increment version to 2.9.0 2009-09-28 20:03:39 -07:00
autogen.sh Update autogen.sh to one that does objdir != srcdir. 2005-08-18 09:03:47 +00:00
configure.ac Increase version to 2.11.0 2010-03-29 11:23:03 -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
	PineView-M (Atom N400 series)
	PineView-D (Atom D400/D500 series)

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