I'm just cleaning up some of the code in softpipe and draw where there
are lots of nasty #ifdefs trying to select between the various shader
execution mechanisms. Hopefully it should clean things up a bit.
The basic idea is the same as always - put an interface around the
different versions. In softpipe for instance, we'll have three
implementations of this interface for llvm, sse and interpreter
respectively:
struct sp_fragment_shader_state
{
struct pipe_shader_state shader; /* Maybe not needed */
unsigned (*run)( struct sp_fragment_shader_state *,
struct something * );
void (*delete)( struct softpipe_context *,
struct sp_fragment_shader_state * );
};
I'll do something similar in the draw module as preparation for
straightening out the vertex shader paths there.
Keith
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