From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jon Smirl Subject: Re: CRTC scanout buffer types Date: Sat, 6 Aug 2005 19:27:18 -0400 Message-ID: <9e473391050806162746046410@mail.gmail.com> References: <9e47339105080513195dee0804@mail.gmail.com> <200508061924.03205.pmcfarland@downeast.net> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Return-path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1E1Y4a-0007xm-QA for linux-fbdev-devel@lists.sourceforge.net; Sat, 06 Aug 2005 16:27:24 -0700 Received: from wproxy.gmail.com ([64.233.184.194]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1E1Y4a-0004Pc-I3 for linux-fbdev-devel@lists.sourceforge.net; Sat, 06 Aug 2005 16:27:24 -0700 Received: by wproxy.gmail.com with SMTP id i17so338737wra for ; Sat, 06 Aug 2005 16:27:18 -0700 (PDT) In-Reply-To: <200508061924.03205.pmcfarland@downeast.net> Content-Disposition: inline Sender: linux-fbdev-devel-admin@lists.sourceforge.net Errors-To: linux-fbdev-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii" To: Patrick McFarland Cc: dri-devel@lists.sourceforge.net, fbdev On 8/6/05, Patrick McFarland wrote: > On Friday 05 August 2005 04:19 pm, Jon Smirl wrote: > > I've included the scanout types for the R200, what other ones are > > supported by the various chips? For example I think the R300 can > > scanout in floating point. > > > > 4bpp Indexed > > 8bpp Indexed > > 16bpp aRGB 1555 > > 16bpp RGB 565 > > 24bpp RGB 888 > > 32bpp aRGB 8888 > > 16bpp aRGB 4444 > > 16bpp aIndex 88 > > 32bpp aRGB 2:10:10:10 palette bypassed > > > > Note, the r200 supports a lot more buffer formats, but these are the > > only ones valid for scanout. >=20 > What does scanout mean? A scanout buffer is a buffer that the graphics chip reads from to directly display on the screen. There are other buffer types like texture and pbuffer that are not directly displayable. For example the Radeon r200 does not allow floating point colors in scanout buffers but they can be used in other buffer types. >=20 > -- > Patrick "Diablo-D3" McFarland || pmcfarland@downeast.net > "Computer games don't affect kids; I mean if Pac-Man affected us as kids,= we'd > all be running around in darkened rooms, munching magic pills and listeni= ng to > repetitive electronic music." -- Kristian Wilson, Nintendo, Inc, 1989 >=20 >=20 >=20 --=20 Jon Smirl jonsmirl@gmail.com ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf