gallium: rework CSO-related code in state tracker

Use the code in cso_context.c rather than st_cache.c.
Basically, binding of state objects now goes through the CSO module.
But Vertex/fragment shaders go through pipe->bind_fs/vs_state() since they're
not cached by the CSO module at this time.

Also, update softpipe driver to handle NULL state objects in various places.
This happens during context destruction.  May need to update other drivers...

1 files changed, 4 insertions, 1 deletions

diff --git a/src/mesa/state_tracker/st_cb_program.c b/src/mesa/state_tracker/st_cb_program.c
index 61d4f4c41c6..4dc76f19b10 100644
--- a/src/mesa/state_tracker/st_cb_program.c
+++ b/src/mesa/state_tracker/st_cb_program.c
@@ -168,11 +168,13 @@ static void st_program_string_notify( GLcontext *ctx,
 
       stfp->serialNo++;
 
+#if 0
       if (stfp->cso) {
          /* free the TGSI code */
          // cso_delete(stfp->vs);
          stfp->cso = NULL;
       }
+#endif
 
       stfp->param_state = stfp->Base.Base.Parameters->StateFlags;
 
@@ -184,13 +186,14 @@ static void st_program_string_notify( GLcontext *ctx,
 
       stvp->serialNo++;
 
+#if 0
       if (stvp->cso) {
          /* free the CSO data */
          st->pipe->delete_vs_state(st->pipe, stvp->cso->data);
          FREE((void *) stvp->cso);
          stvp->cso = NULL;
       }
-
+#endif
       if (stvp->draw_shader) {
          draw_delete_vertex_shader(st->draw, stvp->draw_shader);
          stvp->draw_shader = NULL;