53 lines
1.7 KiB
Plaintext
53 lines
1.7 KiB
Plaintext
|
.\" shorthand for double quote that works everywhere.
|
||
|
|
.ds q \N'34'
|
||
|
|
.TH EXA 4 "xorg-server 25.2.0" "X Version 11"
|
||
|
|
.SH NAME
|
||
|
|
exa \- new 2D acceleration architecture for X.Org
|
||
|
|
.SH DESCRIPTION
|
||
|
|
.B EXA
|
||
|
|
provides a simple API for video drivers to implement for 2D acceleration.
|
||
|
|
It is a module loaded by drivers,
|
||
|
|
and is not intended to be loaded on its own.
|
||
|
|
See your driver's manual page for how to enable
|
||
|
|
.BR EXA .
|
||
|
|
.PP
|
||
|
|
The
|
||
|
|
.B EXA
|
||
|
|
architecture is designed to make accelerating the Render extension simple
|
||
|
|
and efficient,
|
||
|
|
and results in various performance tradeoffs compared to XAA.
|
||
|
|
Some xorg.conf options are available for debugging performance issues
|
||
|
|
or driver rendering problems.
|
||
|
|
They are not intended for general use.
|
||
|
|
.TP
|
||
|
|
.BI "Option \*qEXANoComposite\*q \*q" boolean \*q
|
||
|
|
Disables acceleration of the Composite operation,
|
||
|
|
which is at the heart of the Render extension.
|
||
|
|
Not related to the Composite extension.
|
||
|
|
Default: No.
|
||
|
|
.TP
|
||
|
|
.BI "Option \*qEXANoUploadToScreen\*q \*q" boolean \*q
|
||
|
|
Disables acceleration of uploading pixmap data to the framebuffer.
|
||
|
|
Default: No.
|
||
|
|
.TP
|
||
|
|
.BI "Option \*qEXANoDownloadFromScreen\*q \*q" boolean \*q
|
||
|
|
Disables acceleration of downloading of pixmap data from the framebuffer.
|
||
|
|
.B NOTE:
|
||
|
|
Not usable with drivers which rely on DownloadFromScreen succeeding.
|
||
|
|
Default: No.
|
||
|
|
.TP
|
||
|
|
.BI "Option \*qMigrationHeuristic\*q \*q" anystr \*q
|
||
|
|
Chooses an alternate pixmap migration heuristic,
|
||
|
|
for debugging purposes.
|
||
|
|
The default is intended to be the best performing one for general use,
|
||
|
|
though others may help with specific use cases.
|
||
|
|
Available options include \*qalways\*q,
|
||
|
|
\*qgreedy\*q,
|
||
|
|
and \*qsmart\*q.
|
||
|
|
Default: always.
|
||
|
|
.SH SEE ALSO
|
||
|
|
.BR Xorg (1),
|
||
|
|
.BR xorg.conf (5).
|
||
|
|
.SH AUTHORS
|
||
|
|
Authors include: Keith Packard, Eric Anholt, Zack Rusin, and Michel D\(:anzer
|