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authorMichel Dänzer <michel@tungstengraphics.com>2006-06-18 17:39:09 +0200
committerMichel Dänzer <michel@tungstengraphics.com>2006-06-18 19:00:57 +0200
commit79d1c573133e64ddf4446b6bb0eaab4a5a6c73ab (patch)
tree723276ecb25aba2ba2810f94a1ad6d04f8939811 /man/radeon.man
parent2bcdc7cfd013bd457d35f927390e5cc3544f30f1 (diff)
Implement accelerated EXA DownloadFromScreen hook.
x11perf -getimage numbers only increase by about 20-30% on my PowerBook with an M9, but by about 100 times(!) with a PCIe X550. I suspect the former could perform better with PCI as opposed to AGP transfers, which would also remove the need to disable this by default with AGP.
Diffstat (limited to 'man/radeon.man')
-rw-r--r--man/radeon.man9
1 files changed, 9 insertions, 0 deletions
diff --git a/man/radeon.man b/man/radeon.man
index ba2ae84..9dc75fc 100644
--- a/man/radeon.man
+++ b/man/radeon.man
@@ -506,6 +506,15 @@ the Render and Composite extensions, but the rendering code for it is newer and
possibly unstable. The default is
.B XAA.
.TP
+.BI "Option \*qAccelDFS\*q \*q" boolean \*q
+Use or don't use accelerated EXA DownloadFromScreen hook when possible (only
+when Direct Rendering is enabled, e.g.).
+Default:
+.B off
+with AGP due to issues with GPU->host transfers with some AGP bridges,
+.B on
+otherwise.
+.TP
.BI "Option \*qFBTexPercent\*q \*q" integer \*q
Amount of video RAM to reserve for OpenGL textures, in percent. With EXA, the
remainder of video RAM is reserved for EXA offscreen management. Specifying 0