Search found 4 matches

by Nightblair
Tue 20 Nov, 2018 3:56 pm
Forum: Development
Topic: SDL linear filtering
Replies: 5
Views: 2011

Re: SDL linear filtering

I don't have 1440p display, but lower resolution. Nearest is great, but when you want 4:3 aspect correction then it looks like trash on my setup with 1680x1050 resolution: http://i.imgur.com/r1pwra0.png There is not enough pixels to look good, so this just needs some filtering, sadly the default pce...
by Nightblair
Tue 20 Nov, 2018 8:57 am
Forum: Development
Topic: SDL linear filtering
Replies: 5
Views: 2011

Re: SDL linear filtering

I've just randomly found description of the approach which I wanted to take in pcem: https://www.reddit.com/r/dosgaming/comments/4wyl9d/xpost_pixelperfect_display_in_dosbox_with_scaling/d6epios Maybe it will be better described than in my broken English. Now that I know that this is sound approach, ...
by Nightblair
Mon 30 Jul, 2018 5:45 am
Forum: Development
Topic: SDL linear filtering
Replies: 5
Views: 2011

Re: SDL linear filtering

It does not neccesarily be like normal3x, but good point with the double scanned mode. If I use the scale function with SDL hinting off, then it might be set correctly. I've tried some shaders from retroarch but so far no luck with any. Also, for some reason the OpenGL3 mode takes a toll on my proce...
by Nightblair
Sun 29 Jul, 2018 8:28 am
Forum: Development
Topic: SDL linear filtering
Replies: 5
Views: 2011

SDL linear filtering

When emulating proper 4:3 aspect ratio, I use filtering to prevent oddly shaped pixels. In dosbox this looks fine with normal3x scaler. However in pcem the image is sligtly more blurry which unfortunately gives me a headache after a while. So I've digged into the code and found that pcem is using SD...