Pavel Krajcevski 53fe825e49 Add first pass of atomic implementation. ... This is a first pass of what I believe to be a not too terrible implementation of a cooperative thread-based compressor. The idea is simple... If a compressor is invoked with the same parameters on multiple threads, then the threads cooperate via an atomic counter to compress the texture. Each thread can take as long as possible until the texture is finished. If a caller calls a compression routine that has different parameters, then it will help the current compression finish before starting on its own compression. In this way, we can split the textures up among the threads and guarantee that we maximize the resource usage between them. I.e. this becomes more efficient: Thread 1: Thread 2: Thread N: tex0 texN tex(N-1)N tex1 texN+1 tex(N-1)(N+1) .. .. .. texN-1 tex2N tex(N-1)N I have not tested this for bugs, so I'm still not completely convinced that it is deadlock-free although it should be...		2013-03-06 18:47:15 -05:00
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BC7Compressor.h	Add first pass of atomic implementation.	2013-03-06 18:47:15 -05:00