Video Output bug outside screen

[soundsnow]

pce fast and supergrafx cores are ok
only @LibretroAdmin updated this pce core with this bug
screenshot tool: RetroArch

[ghost]

Are you using a handheld device like PSP?

That looks a non-power-of-2 pitch bug with the physical hardware.

• pce_fast = 512 width
• pce_full = 1365 width (triggering the skew).

We'd have to round up to 2048, but also need someone for testing.

[ghost]

I remember now. Some hardware are optimized (fixed) for 4-byte framebuffer alignment.

Likely why there's the +3 in the code, but it's not fully done.

EDIT:
Reference:
#3

289a25b
(that's not enough though)

[ghost]

Tagging #69

[negativeExponent]

max_width should probably set this to the aligned width as well

beetle-pce-libretro/libretro.cpp

Line 1690 in 6f17ebf

info.geometry.max_width = MEDNAFEN_CORE_GEOMETRY_MAX_W;

Who are still having this issue?

based on vce.cpp references, each scanline has a max of 2048 pixel, so a max buffer width of 2048 should be fine here and got back to use mdfn provided pitch (DisplayRect->pitch), with expected maximum lines to be 264.