On Wed, May 18, 2011 at 1:07 AM, Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote: > I need to implement support for a YUV frame buffer in an fbdev driver. As the > fbdev API doesn't support this out of the box, I've spent a couple of days > reading fbdev (and KMS) code and thinking about how we could cleanly add YUV > support to the API. I'd like to share my findings and thoughts, and hopefully > receive some comments back. > > The terms 'format', 'pixel format', 'frame buffer format' and 'data format' > will be used interchangeably in this e-mail. They all refer to the way pixels > are stored in memory, including both the representation of a pixel as integer > values and the layout of those integer values in memory. This is a great proposal. It was about time! > The third solution has my preference. Comments and feedback will be > appreciated. I will then work on a proof of concept and submit patches. I also would prefer the third solution. I don't think there's much difference from the user-space point of view, and a new ioctl would be cleaner. Also the v4l2 fourcc's should do. Cheers. -- Felipe Contreras _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
