From owner-freebsd-multimedia Sun Apr 19 21:45:06 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id VAA18270 for freebsd-multimedia-outgoing; Sun, 19 Apr 1998 21:45:06 -0700 (PDT) (envelope-from owner-freebsd-multimedia@FreeBSD.ORG) Received: from rah.star-gate.com (rah.star-gate.com [209.133.7.234]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id EAA18166; Mon, 20 Apr 1998 04:44:42 GMT (envelope-from hasty@rah.star-gate.com) Received: from rah.star-gate.com (localhost.star-gate.com [127.0.0.1]) by rah.star-gate.com (8.8.8/8.8.8) with ESMTP id VAA00554; Sun, 19 Apr 1998 21:44:21 -0700 (PDT) (envelope-from hasty@rah.star-gate.com) Message-Id: <199804200444.VAA00554@rah.star-gate.com> X-Mailer: exmh version 2.0.2 2/24/98 To: Luigi Rizzo cc: rhh@ct.picker.com (Randall Hopper), sos@FreeBSD.ORG, jerry@freeside.fc.net, multimedia@FreeBSD.ORG Subject: Re: problem capturing video with BT848/Haughpage Win/Tv In-reply-to: Your message of "Mon, 20 Apr 1998 04:55:31 +0200." <199804200255.EAA13572@labinfo.iet.unipi.it> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sun, 19 Apr 1998 21:44:21 -0700 From: Amancio Hasty Sender: owner-freebsd-multimedia@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org This is a flaw in the current X server protocol model. It can tell you what happened now what is about to happened . The Bt848 clipping code belongs in the X server along with a video capture extension to the X server. Cheers, Amancio > > I'm not surprised that "snap" and "window occlusion" both produce the same > > behavior. Both result in switching Fxtv to PCIcapture-to-memory-to-XImage > > conversion (as opposed to PCIcapture-to-framebuffer). The puzzler is why > > now i understand why it gets slower... so you don't use the clipping > code in the driver ? is there any app. actually using it ? > > cheers > luigi > -----------------------------+-------------------------------------- > Luigi Rizzo | Dip. di Ingegneria dell'Informazione > email: luigi@iet.unipi.it | Universita' di Pisa > tel: +39-50-568533 | via Diotisalvi 2, 56126 PISA (Italy) > fax: +39-50-568522 | http://www.iet.unipi.it/~luigi/ > _____________________________|______________________________________ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message