On Fri, Dec 23, 2016 at 12:00 AM, Tor, the Marqueteur <[email protected]> wrote: > I was reading through the recent archives, and the question of displays > and upsampling caught my eye. > > On list it was noted that upsampling is an expensive operation (and it > certainly is), but I'm not sure it has to be.
turns out that there's line-buffer ICs rather than full framebuffer, which will be cheaper. > As I recall, most LCDs when driven with a lower resolution than native, > will simply repeat interspersed rows/columns as needed to fill the > display. It looks dreadful, but it works. .. but they need to be scaled on an arbitrary basis on both row *and* column. so you need at least a line-buffer to store a couple of rows so that you can use samplerate conversion on y coordinates as well as x. > Alternatively, is there any reason a display for type I couldn't be set > to recognize a type II 1366x768 and display it in the centre of the > display to avoid artifacts? bleuch :) it's not unreasonable but i think you'd find that users complain a lot! > Or should such a display have a button to > switch modes so that it can display full screen with anything? honestly i don't care: if people want to make Housings that do that, it's up to them: market forces will decide whether their product is successful or not. l. _______________________________________________ arm-netbook mailing list [email protected] http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook Send large attachments to [email protected]
