From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1DNQkM-0000yF-Bk for qemu-devel@nongnu.org; Mon, 18 Apr 2005 03:32:42 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1DNQkJ-0000xr-Vx for qemu-devel@nongnu.org; Mon, 18 Apr 2005 03:32:41 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1DNQk5-0000iw-3I for qemu-devel@nongnu.org; Mon, 18 Apr 2005 03:32:25 -0400 Received: from [213.165.64.20] (helo=mail.gmx.net) by monty-python.gnu.org with smtp (Exim 4.34) id 1DNQlG-0005W7-Vr for qemu-devel@nongnu.org; Mon, 18 Apr 2005 03:33:39 -0400 Message-ID: <42636272.6070700@gmx.de> Date: Mon, 18 Apr 2005 09:32:02 +0200 From: Oliver Gerlich MIME-Version: 1.0 Subject: Re: [Qemu-devel] qvm86, kqemu and video speed References: <425A84B0.60200@praguespringpeople.org> <20050412183843.1a3ad827@caprice.artificis.hu> <425C21E8.6090306@bellard.org> <41e41e7a0504131112678e6f08@mail.gmail.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Thomas Steffen , qemu-devel@nongnu.org Thomas Steffen schrieb: > On 4/13/05, Hetz Ben Hamo wrote: > > >>Anyone thought about using XFree's Xv extension? last time I heard, it >>works with all the cards, supported well under XFree, and I think it >>will be better working rather with DGA.. > > > Xv has its denefits, but I am not sure that it is the right tool for > the job here. Xv does hardware colorspace expansion, from the color > compression usually done in JPEG/MPEG to the RGB. This is the main > reason that it works better for video, but obviously we don't need > this (unless we want to play videos inside of QEMU). > > And most graphics cards support only one Xv area, which is treated as > an overlay. That would be a serious restriction, because you could not > use Xine and QEMU together on one screen. > > So I would think that DGA is the way to go first. > > Thomas > Please no DGA :) This is one of the reasons why I don't use VMWare - it needs DGA for fullscreen mode, and my %&§&% ATI 9200 with this &§$/$%&/% fglrx driver doesn't like DGA (yes, ok, ATI does make progress: at least dga doesn't now crash the whole system with the current drivers...) So I hope that qemu won't use DGA for faster graphics - I think optimizing the current driver and maybe adding some host-OpenGL support would be quite an improvement. Besides, such changes would also improve Qemu on MacOS or Windows, not only on Linux. Oliver > > _______________________________________________ > Qemu-devel mailing list > Qemu-devel@nongnu.org > http://lists.nongnu.org/mailman/listinfo/qemu-devel > >