In regards to DirectFB version 1.3.0... I know that you can create surfaces using the DSCAPS_SHARED capability flag to allocate the surface memory in the shared memory pool. What I don¹t know is how to access that shared surface memory from another process. Is it possible for a use process to access the surface memory of a shared surface in another user process?
The scenario that I currently face is that I have one user level process ³A² that needs to create a huge offscreen surface, and then another process ³B² that needs to take that surface data and perform animation effects on it before copying it to a display window. Right now I am using a Linux shared memory buffer to act as a conduit between the two processes, but that¹s a really inefficient way of doing things. What I would like is for process ³A² to be able to write freely to it¹s shared surface, and for process ³B² to be able to read freely from the same surface. Any pointers on how to accomplish this? I¹m probably missing something completely obvious... Thanks, -Robert Hildinger
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