gallium: use cso_destroy_vertex/fragment_shader() functions

Also, rearrange the st_destroy_context() code a bit to prevent some
invalid/NULL ptr derefs during tear-down.

src/mesa/state_tracker/st_cb_bitmap.c

@@ -803,7 +803,7 @@ st_destroy_bitmap(struct st_context *st)
    }
 #endif
    if (st->bitmap.vs) {
-      pipe->delete_vs_state(pipe, st->bitmap.vs);
+      cso_delete_vertex_shader(st->cso_context, st->bitmap.vs);
       st->bitmap.vs = NULL;
    }
 

src/mesa/state_tracker/st_cb_clear.c

@@ -98,11 +98,11 @@ st_destroy_clear(struct st_context *st)
    struct pipe_context *pipe = st->pipe;
 
    if (st->clear.fs) {
-      pipe->delete_fs_state(pipe, st->clear.fs);
+      cso_delete_fragment_shader(st->cso_context, st->clear.fs);
       st->clear.fs = NULL;
    }
    if (st->clear.vs) {
-      pipe->delete_vs_state(pipe, st->clear.vs);
+      cso_delete_vertex_shader(st->cso_context, st->clear.vs);
       st->clear.vs = NULL;
    }
    if (st->clear.vbuf) {

src/mesa/state_tracker/st_cb_program.c

@@ -39,7 +39,7 @@
 #include "shader/programopt.h"
 #include "shader/shader_api.h"
 
-#include "cso_cache/cso_cache.h"
+#include "cso_cache/cso_context.h"
 #include "draw/draw_context.h"
 
 #include "st_context.h"
@@ -127,7 +127,6 @@ void
 st_delete_program(GLcontext *ctx, struct gl_program *prog)
 {
    struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
 
    switch( prog->Target ) {
    case GL_VERTEX_PROGRAM_ARB:
@@ -135,7 +134,7 @@ st_delete_program(GLcontext *ctx, struct gl_program *prog)
          struct st_vertex_program *stvp = (struct st_vertex_program *) prog;
 
          if (stvp->driver_shader) {
-            pipe->delete_vs_state(pipe, stvp->driver_shader);
+            cso_delete_vertex_shader(st->cso_context, stvp->driver_shader);
             stvp->driver_shader = NULL;
          }
 
@@ -150,7 +149,7 @@ st_delete_program(GLcontext *ctx, struct gl_program *prog)
          struct st_fragment_program *stfp = (struct st_fragment_program *) prog;
 
          if (stfp->driver_shader) {
-            pipe->delete_fs_state(pipe, stfp->driver_shader);
+            cso_delete_fragment_shader(st->cso_context, stfp->driver_shader);
             stfp->driver_shader = NULL;
          }
          
@@ -187,7 +186,6 @@ static void st_program_string_notify( GLcontext *ctx,
 				      struct gl_program *prog )
 {
    struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
 
    if (target == GL_FRAGMENT_PROGRAM_ARB) {
       struct st_fragment_program *stfp = (struct st_fragment_program *) prog;
@@ -195,7 +193,7 @@ static void st_program_string_notify( GLcontext *ctx,
       stfp->serialNo++;
 
       if (stfp->driver_shader) {
-         pipe->delete_fs_state(pipe, stfp->driver_shader);
+         cso_delete_fragment_shader(st->cso_context, stfp->driver_shader);
          stfp->driver_shader = NULL;
       }
 
@@ -215,7 +213,7 @@ static void st_program_string_notify( GLcontext *ctx,
       stvp->serialNo++;
 
       if (stvp->driver_shader) {
-         pipe->delete_vs_state(pipe, stvp->driver_shader);
+         cso_delete_vertex_shader(st->cso_context, stvp->driver_shader);
          stvp->driver_shader = NULL;
       }
 

src/mesa/state_tracker/st_context.c

@@ -176,22 +176,29 @@ static void st_destroy_context_priv( struct st_context *st )
       }
    }
 
-   st->pipe->destroy( st->pipe );
    free( st );
 }
 
  
 void st_destroy_context( struct st_context *st )
 {
+   struct pipe_context *pipe = st->pipe;
+   struct cso_context *cso = st->cso_context;
    GLcontext *ctx = st->ctx;
 
    /* need to unbind and destroy CSO objects before anything else */
-   cso_destroy_context(st->cso_context);
+   cso_release_all(st->cso_context);
 
    _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
 
    _mesa_free_context_data(ctx);
+
    st_destroy_context_priv(st);
+
+   cso_destroy_context(cso);
+
+   pipe->destroy( pipe );
+
    free(ctx);
 }
 

src/mesa/state_tracker/st_program.c

@@ -270,7 +270,7 @@ st_translate_vertex_program(struct st_context *st,
       stvp->state.tokens = NULL;
    }
    if (stvp->driver_shader) {
-      pipe->delete_vs_state(pipe, stvp->driver_shader);
+      cso_delete_vertex_shader(st->cso_context, stvp->driver_shader);
       stvp->driver_shader = NULL;
    }