New subject: [Bug 55471] nGlide wrapper produces black screen in games using the D3D backend

20 Aug 2023


      https://bugs.winehq.org/show_bug.cgi?id=55471
Bug ID: 55471
           Summary: nGlide wrapper produces black screen in games using
                    the D3D backend
           Product: Wine
           Version: 8.4
          Hardware: x86-64
               URL: https://archive.org/download/Wiz8b/Wiz8NetDemoEB.exe
                OS: Linux
            Status: NEW
          Keywords: download, regression
          Severity: normal
          Priority: P2
         Component: winex11.drv
          Assignee: wine-bugs@winehq.org
          Reporter: gyebro69@gmail.com
                CC: z.figura12@gmail.com
   Regression SHA1: 46c8a637525d0f1cf67830295fb460c819b800b6
      Distribution: ArchLinux
Created attachment 75029
  --> https://bugs.winehq.org/attachment.cgi?id=75029
terminal output
I'm using nGlide wrapper v2.10 for old games from the Win95/Win98 era that
support the 3Dfx Glide renderer.
The problem is that most (but not all) of the games just produce a black screen
after startup if <Video backend> is set to <Auto> or <Directx> in the nGlide
configurator. Vulkan backend is working properly.
Some affected games are Descent 3, Die by the Sword, Ultima IX, Wizardry 8,
Tachyon The Fringe, Powerslide.
The problem is present since Wine 8.4 and regression testing points to
commit 46c8a637525d0f1cf67830295fb460c819b800b6
winex11: Separately store the internal pixel format set by
WGL_WINE_pixel_format_passthrough.
To reproduce the problem in Wizardry 8 demo:
1. download and install the nGlide v2.10 wrapper:
https://www.zeus-software.com/downloads/nglide/d-1.html
Configuration is done by running nglide_config.exe. Video backend should be
either <Auto> or <DirectX>.
2. download and install Wizardry 8 demo.
First run 3Dsetup.exe from the game directory. If nGlide v2.10 is installed
then you have the option to select 'Glide2x' as the renderer.
3. start the demo with Wiz8.exe. After a short intro the screen remains black.
nGlide210_setup.exe  (3.2 M)
md5sum: cd30d314c3f1470cef1a35300fda1a20
Wiz8NetDemoEB.exe   (143 M)
md5sum: 728f87e9768102c71017675a1bb06425
Wine 8.14
X.Org X Server 1.21.1.8
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: NVIDIA GeForce GTX 1660 SUPER/PCIe/SSE2
OpenGL core profile version string: 4.6.0 NVIDIA 535.43.08
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[Bug 55471] New: nGlide wrapper produces black screen in games using the D3D backend