From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 15293] Flash video laggy inside Firefox only with KMS
Date: Sun, 28 Feb 2010 19:41:33 GMT
Message-ID: <201002281941.o1SJfXoM004335@demeter.kernel.org>
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http://bugzilla.kernel.org/show_bug.cgi?id=15293
--- Comment #31 from Pauli 2010-02-28 19:41:26 ---
Why NOTOURBUG?
Because Linux flash player is buggy. It is trying to do something that is never
going to have good performance. Uploading data to VRAM and reading it back late
is always going to be slow.
Flash player knows that is is going to download back the video frames anyway
soon so it shouldn't upload them. It is a lot faster to do everything in
software than trying to do partial hardware acceleration.
I agree that r600 driver is not doing everything perfectly for what flash wants
to do. But the way flash tries to play the video is always going to take at
least 3 times more hw resources than standard alone players would take.
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