On Tue, 22 Jul 2003 10:27:44 +0530, Nitin Mahajan wrote: > > Hello Everyone! > > Iam writing a driver for 69030 card. > I have to support CIF and QCIF formats.
WHICH 69030? Surely you must realize that chip numbers are not unique industry-wide. If you are talking about the Asiliant 69030, are you aware that a Linux driver already exists? It is a renamed version of the old Chips & Technologies 65550, which was supported in XFree86 3.x. http://www.humboldt.co.uk/matc.html >1. The format says that a frame rate of 30fps is required for both. > >2.Each frame should have > a. 144 lines and 176 pixels/line for QCIF. > b. 288 lines and 352 pixels/line for CIF. > >Now my interpretation is that the second point above refers to the frame >size and the driver implementation (video modes)has nothing to do with it. >Is this interpretation of mine is correct? I doubt it, but I'm confused by your mixing of graphics and video. When you say a "frame rate of 30fps is required", what are you talking about? Do you mean video coming in through the zoom video port? Or are you talking about ordinary software-decoded movies? Tells us WHAT you have to support at 30fps, and perhaps we can offer suggestions. >Second question is that, how do I achive the frame rate of 30fps? 30fps for what? >I have >programmed the BitBLT engine for the card,but that also puts only 64Kb data >on screen in on shot,so always I need to divide the Image into 64KB parts. Are you talking about system-memory-to-video-memory transfers? I'm surprised to hear there is a 64K limitation in any relatively modern graphics card. Are you sure about that? -- - Tim Roberts, [EMAIL PROTECTED] Providenza & Boekelheide, Inc. _______________________________________________ Devel mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/devel
