Date: Fri, 12 Mar 1999 19:37:10 -0800 (PST) From: Jonathan Walther <krooger@debian.org> To: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> Cc: freebsd-hackers@freebsd.org Subject: VESA double buffering and pan and zoom Message-ID: <Pine.LNX.3.96.990312192038.21907A-100000@localhost> In-Reply-To: <199903121101.UAA09690@zodiac.mech.utsunomiya-u.ac.jp>
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In the VESA spec function 07h lets you switch the beginning of the video mem to anywhere in the video cards memory space. This would mean one could easily do double buffering, by writing to the right area of memory, then changing the one address, and eliminating annoying flicker. Is this currently supported by FreeBSD? I am also curious if 06h has been implemented, to allow pan and scrolling to be done. Cheers! Jonathan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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