[Bug 42148] Redrawing issues in Capitalism 2

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=42148

Jan Seiffert <kaffeemonster at googlemail.com> changed:

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--- Comment #25 from Jan Seiffert <kaffeemonster at googlemail.com> ---
This bug also affects Capitalism Lab, Enlights continuation of the Capitalism
series. Prop. because it is still the same graphics engine, they are "just"
extending the simulation (Latest DLC "Banking and Finance" from 2020, latest
exe 8.0.13 has a 2022 copyright).

I tried wine-6.23-staging, wine-7.1-staging, wine-7.2-staging, same graphics
glitch, no redraw of the map, except where you move your mouse courser.
wine-7.0-tkg also has this graphic glitch, but game-voice output is working,
yeah?

I found the following forum entry:
https://forum.winehq.org/viewtopic.php?t=31396#p136066 

And yes, when you:
1) switch OffscreenRendering to "backbuffer"
and
2) run the game fullscreen

the map is drawn.
Problem is, for me, it fullscreen flickers like hell.

This all smells like a bug between ddraw4/fbo and the game/Wine? probably in
error specifying DISCARD semantics, skirting some undefined behaviour in
windows where it is actually getting COPY semantics.
(please have a look at https://bugs.winehq.org/show_bug.cgi?id=3467, this game
apparently uses a funky AddAttachedSurface which is only possible with ddraw4,
ddraw7 disallowing this/only allowing Z_Buffer surfaces)

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