From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030211AbVIAPpw (ORCPT ); Thu, 1 Sep 2005 11:45:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030212AbVIAPpw (ORCPT ); Thu, 1 Sep 2005 11:45:52 -0400 Received: from clock-tower.bc.nu ([81.2.110.250]:59570 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S1030211AbVIAPpv (ORCPT ); Thu, 1 Sep 2005 11:45:51 -0400 Subject: Re: State of Linux graphics From: Alan Cox To: Discuss issues related to the xorg tree Cc: lkml In-Reply-To: <43171D33.9020802@tungstengraphics.com> References: <9e47339105083009037c24f6de@mail.gmail.com> <1125422813.20488.43.camel@localhost> <20050831063355.GE27940@tuolumne.arden.org> <1125512970.4798.180.camel@evo.keithp.com> <20050831200641.GH27940@tuolumne.arden.org> <1125522414.4798.222.camel@evo.keithp.com> <20050901015859.GA11367@tuolumne.arden.org> <1125547173.4798.289.camel@evo.keithp.com> <43171D33.9020802@tungstengraphics.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Thu, 01 Sep 2005 17:09:51 +0100 Message-Id: <1125590991.15768.55.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.2.2 (2.2.2-5) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Iau, 2005-09-01 at 09:24 -0600, Brian Paul wrote: > If the blending is for screen-aligned rects, glDrawPixels would be a > far easier path to optimize than texturing. The number of state > combinations related to texturing is pretty overwhelming. As doom showed however once you can cut down some of the combinations particularly if you know the texture orientation is limited you can really speed it up. Blending is going to end up using textures onto flat surfaces facing the viewer which are not rotated or skewed.