[Bug 23085] Radeon KMS: XGetImage very slow, as is Firefox scrolling

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Aug 3 09:12:49 PDT 2009


--- Comment #9 from Michel Dänzer <michel at daenzer.net>  2009-08-03 09:12:47 PST ---
Now that you guys mention this, I remember hearing about it before... I guess
my mind keeps trying to forget about it because it's so wrong. :} I guess this
must mean Firefox 3 isn't usable on remote displays...

Anyway, XGetImage performance will become better once someone gets around to
implementing an accelerated DownloadFromScreen hook again for KMS. There was
something in the Git branch kms-support which hasn't been ported to the new KMS
support in the master branch yet.

In the long run, we may be able to make XGetImage perform even better with KMS
than would ever be possible without by using TTM user buffers.

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