Hello everyone,
I'm using surface locks for some custom graphical engine tests, and don't
understand the following behavior of directfb :
layer->CreateSurface(&surface, DOUBLE_BUFFERED)
surface->Lock (&ptr, CPU_READ|CPU_WRITE);
Here directfb return a ptr = 0x42424242 for example.
Then I execute the following steps :
surface->Unlock()
surface->FillRectangle(0, 0, 42, 42);
surface->Lock(&ptr, CPU_READ|CPU_WRITE);
Here ptr has changed from its previous value.
Why ? I didn't require a Flip.
Should I own the lock all the time ?
Thanks for answers.
--
Lionel Landwerlin
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