From mboxrd@z Thu Jan 1 00:00:00 1970 From: Antonino Daplas Subject: Re: fb_imageblit semantic Date: 17 Mar 2003 21:01:58 +0800 Sender: linux-fbdev-devel-admin@lists.sourceforge.net Message-ID: <1047906068.2599.51.camel@localhost.localdomain> References: Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Received: from pine.compass.com.ph ([202.70.96.37]) by sc8-sf-list1.sourceforge.net with smtp (Exim 3.31-VA-mm2 #1 (Debian)) id 18uuJ3-0001Ix-00 for ; Mon, 17 Mar 2003 05:05:33 -0800 In-Reply-To: Errors-To: linux-fbdev-devel-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Id: List-Unsubscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii" To: Geert Uytterhoeven Cc: Petr Vandrovec , James Simmons , Linux Frame Buffer Device Development On Mon, 2003-03-17 at 20:18, Geert Uytterhoeven wrote: > On 17 Mar 2003, Antonino Daplas wrote: > > On Mon, 2003-03-17 at 18:40, Petr Vandrovec wrote: > > > On 17 Mar 03 at 11:31, Geert Uytterhoeven wrote: > > > > On 17 Mar 2003, Antonino Daplas wrote: > > > > > As Geert said, it's not just trivial, but logical to split fb_imageblit > > > > > into two. > > > > > > > > So, are we gonna split it? This will also make hardware acceleration support > > > > more clean. E.g. most sbus drivers do color expansion in hardware, and fall > > > > back to cfb_imageblit() for the logo. > > > > It's up to James, though I vote for it. And I don't think any driver > > has accelerated versions of fb_imageblit for the logo, since any > > performance gained is probably minimal and it will involve too much work > > for something that's going to be done only once. > > Wait until someone wants 256-color fonts ;-) When we do get that to that point, the entire interface will be revamped. Imagine passing 128 bytes to draw a single character. This is where Tile Blitting comes in. Tony ------------------------------------------------------- This SF.net email is sponsored by:Crypto Challenge is now open! Get cracking and register here for some mind boggling fun and the chance of winning an Apple iPod: http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0031en