[Mesa-dev] [Bug 92437] osmesa: Expose GL entry points for Windows build, via .def file

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92437

            Bug ID: 92437
           Summary: osmesa: Expose GL entry points for Windows build, via
                    .def file
           Product: Mesa
           Version: 11.0
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: medium
         Component: Mesa core
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: nigels.com at gmail.com
        QA Contact: mesa-dev at lists.freedesktop.org

Created attachment 118837
  --> https://bugs.freedesktop.org/attachment.cgi?id=118837&action=edit
git format-patch

As the GLEW maintainer, I've been looking to support OSMesa natively in GLEW,
when built in -DGLEW_OSMESA=1 mode.  I had some success with on Linux, but
linking with libOSMesa, rather than libGL.  However, the Windows scons build
does not export the OpenGL functions that GLEW needs, such as glGetString.

Linux:
$ nm -D /usr/lib/x86_64-linux-gnu/libOSMesa.so | grep glGetString
000000000026e620 T glGetString
0000000000270d40 T glGetStringi

I found that GLEW utilities glewinfo and visualinfo work on Windows with
OSMesa, given a patched osmesa.def, as attached.

- Nigel

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