Re-implement GLSL texture sampler variables.

GLSL sampler variables indicate which texture unit to use for TEX instructions.
Previously, this was baked into the fragment/vertex program and couldn't be
readily changed once set.
Now, SamplerUnits[] array indicates which texture unit is to be used for
each sampler variable.  These values are set with glUniform1i().
This is extra state that must be passed to the fragment/vertex program
executor at runtime.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/mesa/pipe/softpipe/sp_state.h b/src/mesa/pipe/softpipe/sp_state.h
index c194f0ea0d..61532bcdeb 100644
--- a/src/mesa/pipe/softpipe/sp_state.h
+++ b/src/mesa/pipe/softpipe/sp_state.h
@@ -99,6 +99,9 @@ void softpipe_delete_vs_state(struct pipe_context *, void *);
 void softpipe_set_polygon_stipple( struct pipe_context *,
 				  const struct pipe_poly_stipple * );
 
+void softpipe_set_sampler_units( struct pipe_context *,
+                                 uint numSamplers, const uint *units );
+
 void softpipe_set_scissor_state( struct pipe_context *,
                                  const struct pipe_scissor_state * );