[Bug 43638] Yermom demoscene demo crashes on start up

https://bugs.winehq.org/show_bug.cgi?id=43638

--- Comment #5 from Fabian Maurer  ---
Created attachment 59064
  --> https://bugs.winehq.org/attachment.cgi?id=59064
Hack to make it start up (needs other two workarounds)

Third workaround, this time in form of a hack.

The program calls SetPixelFormat on the desktop windows, with format set to 0.
Then it tries to create a context and uses it to query functions, like
glCreateShaderProgramv.
This patch makes it work.
However, the screen is completely white, only the music plays. You're advised
to use "emulate a virtual desktop" if you want to test the hack, then you can
quit the fullscreen with ESC.