[Bug 9378] Combat Mission Shock Force DEMO: 'Could not initialize OpenGL graphics.'

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=9378

--- Comment #24 from Kevin2k  ---
joaopa,

I just looked at your Diff attachment from 2020-09-23. Yes, that makes much
more sense then the previous workaround from Alexander from 2017. According to
what I see in your diff, 'shift' is just the bit-offset of the pixel's r,g,b,a
component data.

I do find it odd that in my hardware tests cAlphaShift is 0 for many
pixelformats that do have an alpha channel. Does that suggest the alpha channel
is the first byte for these modes?