[Bug 56166] New: GDI performance regression after switching fonts to syscall interface

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=56166

Bug ID: 56166
           Summary: GDI performance regression after switching fonts to
                    syscall interface
           Product: Wine
           Version: 8.9
          Hardware: x86-64
               URL: https://developer.download.nvidia.com/SDK/9.5/Samples/
                    3dgraphics_samples.html#HLSL_HDR_FP16x2
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: win32u
          Assignee: [e-mail]
          Reporter: [e-mail]
   Regression SHA1: 9b5c916e4e8b90da795be93d8203743d76d22edb
      Distribution: ---

Long story short, up to wine 8.8 you get about 2300fps with my 2080 and 9600K
in an old nvidia showcase. After that, it's more like 2150. 
Of course it's just a little 7% difference, but it's completely reproducible,
so..

p.s. DXVK and the patch for bug 32323 are also needed to "unlock full speed"
(the sources clearly show a D3DXCreateFont call for Arial, but is it expected
to take a 40% framerate hit without the fonts otherwise?)