From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jon Smirl Subject: fixing fbdev for various framebuffer configs Date: Fri, 29 Jul 2005 06:53:08 -0400 Message-ID: <9e473391050729035370d76cc5@mail.gmail.com> 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 1DySUM-0007x8-Pp for linux-fbdev-devel@lists.sourceforge.net; Fri, 29 Jul 2005 03:53:14 -0700 Received: from wproxy.gmail.com ([64.233.184.205]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1DySUL-0003UN-OV for linux-fbdev-devel@lists.sourceforge.net; Fri, 29 Jul 2005 03:53:15 -0700 Received: by wproxy.gmail.com with SMTP id 36so583883wra for ; Fri, 29 Jul 2005 03:53:08 -0700 (PDT) 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: fbdev , "Antonino A. Daplas" , Geert Uytterhoeven , James Simmons It has been determined that bits per pixel is insuffucient to enumerate all the needed fbconfigs. Here are the possible fgconfigs from the OpenGL headers: total bits=20 8 GL_R3_G3_B2 8 GL_RGBA2 12 GL_RGB4 15 GL_RGB5 16 GL_R5_G6_B5 16 GL_RGBA4 16 GL_RGB5_A1 24 GL_RGB8 30 GL_RGB10 32 GL_RGBA8 32 GL_RGB10_A2 36 GL_RGB12 48 GL_RGB16 48 GL_RGBA12 48 GL_FLOAT_RGB16 64 GL_RGBA16 64 GL_FLOAT_RGBA16 96 GL_FLOAT_RGB32 128 GL_FLOAT_RGBA32 We need to be able to set any of these through the fbdev interface. We also need to allow for possible future expansion. Ideas on how to adjust the fbdev interface? What is the effect of alpha bits on the scanout buffer, do they do anything= ? --=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