[Bug 38581] Petka 1: some objects render without transparency

https://bugs.winehq.org/show_bug.cgi?id=38581

--- Comment #22 from ax 34noff  ---
Some these lines:
> err:ddraw:ddraw_surface_set_color_key Range color keys are not supported, returning DDERR_NOCOLORKEYHW 00000000 7fffffff.

Can't see any "converting surface from".
Wine Git 32bit build with both patches.
> I did notice though that the game mixes 16 bit and 32 bit pixel formats.

Doesn't it use 8bit (indexed) format for some sprites? I can see significant
dithering on buggy sprites but i don't see it on the rest of picture.