I’m trying to get SDL work on a Linux framebuffer on
my embedded system.
I managed to port video part without changes but I
have a question. In some systems I have, the screen is
rotated 90 degrees counterclockwize. This is a HW
"feature", I can not do anything about that. So all
surfaces blitted by SDL to real HW surface, should be
rotated 90 degrees.
How can I implement such rotation? Is there any
centralised blitting place I can hack into? Or maybe
such filter is already implmented? Is this enough to
hack into SDL_SoftBlit()? How can I distinguish there
whether the surface is HW or not? I need to keep
normal blitting for non-HW surfaces
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