From mboxrd@z Thu Jan 1 00:00:00 1970 From: Russell King Subject: Re: [PATCH] interlaced packed pixels Date: Fri, 4 Apr 2003 16:39:31 +0100 Sender: linux-fbdev-devel-admin@lists.sourceforge.net Message-ID: <20030404163931.E964@flint.arm.linux.org.uk> References: Mime-Version: 1.0 Return-path: Received: from caramon.arm.linux.org.uk ([212.18.232.186]) by sc8-sf-list1.sourceforge.net with esmtp (Cipher TLSv1:DES-CBC3-SHA:168) (Exim 3.31-VA-mm2 #1 (Debian)) id 191TII-0003LI-00 for ; Fri, 04 Apr 2003 07:39:54 -0800 Content-Disposition: inline In-Reply-To: ; from geert@linux-m68k.org on Fri, Apr 04, 2003 at 01:17:15PM +0200 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" Content-Transfer-Encoding: 7bit To: Geert Uytterhoeven Cc: Linux Frame Buffer Device Development , Linux Kernel Development On Fri, Apr 04, 2003 at 01:17:15PM +0200, Geert Uytterhoeven wrote: > I'd like to introduce a new frame buffer type to accommodate packed pixel frame > buffers that store the even and odd fields separately. This is typically used > in graphics hardware for TV output (e.g. set-top boxes). While we're on the subject of framebuffers, one area which needs to be looked into is the pixel layout for all of: - little endian byte, little endian pixel 1bpp: word 0 bit 31..0 = pixel 31..0) 16bpp: word 0 bit 31..0 = pixel1 bits 15..0 pixel0 bits 15..0) - little endian byte, big endian pixel 1bpp: word 0 bit 31..0 = pixel 24..31, 16..23, 8..15, 0..7) 16bpp: word 0 bit 31..0 = pixel1 bits 15..0 pixel0 bits 15..0) - big endian byte, big endian pixel 1bpp: word 0 bit 31..0 = pixel 0..31) 16bpp: word 0 bit 31..0 = pixel0 bits 15..0 pixel1 bits 15..0) We currently do not support all these combinations, and so far I haven't looked into it. It is on my (great long) to do list. -- Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux http://www.arm.linux.org.uk/personal/aboutme.html ------------------------------------------------------- This SF.net email is sponsored by: ValueWeb: Dedicated Hosting for just $79/mo with 500 GB of bandwidth! No other company gives more support or power for your dedicated server http://click.atdmt.com/AFF/go/sdnxxaff00300020aff/direct/01/