+Anatolij, Nikita Hi,
On 2 March 2015 at 03:12, Hannes Petermaier <[email protected]> wrote: > Hello everybody, > > A short question about lcd-console: > > Today u-boot only supports a 'linear framebuffer', meaning the next pixel > of a character is allways right after left and the framebuffer address is > incrementing. > We call this the display is mounted with 0° rotation. > > In some cases we have a rotated display. > Maybe rotated by 90° to have portrait mode or even 180° due to mechanical > issues. > > My question is: > Is anybody currently working around this, having rotated display ? > If not so, i would like start a implementation. > > 180° is quite easy, we only need to add some offset (total len of > framebuffer) to our framebuffer base address and do -- instead ++ for > drawing characters. Font can be reused. > > In the other cases, 90° and 270° it will maybe a bit tricky. I think a > ?rotated font? is also necessary. > > Of course we have to think about the other functions like scroll up/down. I don't know of anything, but it sounds useful. Also I wonder if some hardware has support for this? Nikita (on CC) is tidying up this part of U-Boot so get in touch with him. Regards, Simon _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
