By the way, that's already done by a fellow forum member. Skip to the 1:40 in the video. Video signal is sampled by a FPGA and the RGB image is constructed with a line buffer. https://www.youtube.com/watch?v=m3WKGK-J-IA Regards, Nejat On Sun, Mar 10, 2019 at 10:15 PM Mia Magnusson <mia@plea.se> wrote: > > Den Sun, 10 Mar 2019 12:32:28 -0500 skrev Segher Boessenkool > <segher@kernel.crashing.org>: > > On Sun, Mar 10, 2019 at 05:57:09PM +0100, groepaz@gmx.net wrote: > > > Would be interesting to see some details on how it works (i am > > > hoping for something else than plain VICII emulation... it could be > > > a nice way to make pixel perfect screenshots from a real VICII > > > eventually) > > > > It has to be emulation, a lot of state is needed to create the picture > > that cannot be seen from anything happening on the pins (like ECM/MCM > > modes, sprite X coordinate, sprite/data priority), so all that has to > > be emulated, and you are looking at pretty much all of a VIC-II by > > then. (Well, you don't need anything for accessing memory of course, > > all that is done by the real chip and you can sniff it). > > On the other hand, the S-video signal out from the VIC-II is really > enough to "know" what's going on, and it could most likely be sampled > and cleaned, and PAL/NTSC demodulated, to generate a perfect signal. > > With some automatic level detection, the hardware could learn how the > signals from the VIC-II particular actually look re unwanted stripes > and similar problems. I.e. a kind of auto-lumafix. > > > -- > (\_/) Copy the bunny to your mails to help > (O.o) him achieve world domination. > (> <) Come join the dark side. > /_|_\ We have cookies. >Received on 2019-03-11 00:00:03
Archive generated by hypermail 2.2.0.