[Bug 53316] New: WGL context sharing does not work on Intel driver

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53316

            Bug ID: 53316
           Summary: WGL context sharing does not work on Intel driver
           Product: Wine
           Version: 7.12
          Hardware: x86-64
                OS: Windows
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: directx-d3d
          Assignee: wine-bugs at winehq.org
          Reporter: trass3r at gmail.com

Originally encountered when testing DK2:
https://bugs.winehq.org/show_bug.cgi?id=44260#c8

3de8:trace:d3d:texture2d_blt dst_texture 00B11400, ...
3de8:warn:d3d:context_create_wgl_attribs Failed to create a WGL context with
wglCreateContextAttribsARB, last error 0xaa.
3de8:err:d3d:wined3d_context_gl_create_wgl_ctx Failed to create a WGL context.

0xaa is ERROR_BUSY, which is returned because the context to be shared by the
new context in the helper thread is still current in the main thread.

See
https://github.com/roxlu/windows-opengl-context#solution-
https://bugzilla.gnome.org/show_bug.cgi?id=792407#c2
https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/blob/master/ext/qt/gstqtglutility.cc#L264

Tested on Win11, Intel UHD620 Driver 30.0.101.3113
with
wine reg add 'HKCU\Software\Wine\Direct3D' /v csmt /t REG_DWORD /d 0

The problem does not occur when replacing the driver with GLonD3D12 from
https://github.com/pal1000/mesa-dist-win

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