[Bug 40293] New: some UI elements and terrain disappear on offscreen rendering mode = backbuffer

https://bugs.winehq.org/show_bug.cgi?id=40293

Bug ID: 40293
           Summary: some UI elements and terrain disappear on offscreen
                    rendering mode = backbuffer
           Product: Wine
           Version: 1.9.5
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: opengl
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 53934
  --> https://bugs.winehq.org/attachment.cgi?id=53934
logs for offscreen rendering mode default or backbuffer and pics

When running IndustryGiant 2.1 on a HD7730 (Ubuntu 14.04 x64, new x86
wineprefix with no other packages or anything) with opengl/gdi the cursor
disappears when it has to change its layout (and sets the game-update rate to
zero until the invisible cursor changes back to its previous symbol via
hovering over the popup-menu).

To circumvent that, i've set "offscreen rendering mode = backbuffer" (& force
opengl, as gdi doesn't support backbuffer).

This results in a very smooth gaming experience, but some UI elements don't
appear and on scrolling, the terrain turns white (unless a redraw is forced by
clicking on the minimap)

UI elements are stored as .tga's in the game directory, as well as cursors.
Ingame, an option called "software cursor" has to be activated since wine won't
redraw the window if its off in any case (backbuffer as well as default,
wiggling the virtual desktop around forces it to redraw).

To me it seems the backbuffer-issues might be caused by 
"fixme:d3d:swapchain_init Add OpenGL context recreation support to
context_validate_onscreen_formats",
but setting MaxShaderModelPS & MaxShaderModelVS to 0 didn't do anything, tough
googling suggested otherwise.

[Bug 40293] some UI elements and terrain disappear on offscreen rendering mode = backbuffer

https://bugs.winehq.org/show_bug.cgi?id=40293

[e-mail] changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]

[Bug 40293] Industry Giant 2, some UI elements and terrain disappear on offscreen rendering mode = backbuffer

https://bugs.winehq.org/show_bug.cgi?id=40293

Matteo Bruni  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|opengl                      |directx-d3d
            Summary|some UI elements and        |Industry Giant 2, some UI
                   |terrain disappear on        |elements and terrain
                   |offscreen rendering mode =  |disappear on offscreen
                   |backbuffer                  |rendering mode = backbuffer

--- Comment #1 from Matteo Bruni  ---
I think it would be more interesting to focus on the issue with the default FBO
setting, backbuffer ORM isn't really supported. Can you please open a separate
bug for the issue with default settings?

[Bug 40293] Industry Giant 2, some UI elements and terrain disappear on offscreen rendering mode = backbuffer

https://bugs.winehq.org/show_bug.cgi?id=40293

--- Comment #2 from [e-mail] ---
(In reply to Matteo Bruni from comment #1)
> I think it would be more interesting to focus on the issue with the default
> FBO setting, backbuffer ORM isn't really supported. Can you please open a
> separate bug for the issue with default settings?

done. filed #40316

[Bug 40293] Industry Giant 2, some UI elements and terrain disappear on offscreen rendering mode = backbuffer

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=40293

joaopa  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]

--- Comment #3 from joaopa  ---
Does the bug still occurs with wine-5.0-rc6?