Hi
I have some question about the lock use in the multihreaded apps.
I use directfb 1.0.1 on VIA nano-itx board.
I got two main surface(graphics surface and video surface) from two
layer.
and i use some tmp surface.
then the question are:
1. when i do two blit at the same time ( one tmp surface to main
graphics surface, and another to main video graphics), should i use mutex
lock.? one lock or two ?
2. when i do two blit from two tmp surface to one main surface, each
blit overide some part of the main surface. should i use mutex lock?
3. when i do blit from tmp surface to tmp surface ,should i use mutex
lock ?
thanks very much.
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