st/mesa: add tessellation shader states

additional fixes by Marek

src/mesa/state_tracker/st_atom_shader.c

@@ -210,3 +210,75 @@ const struct st_tracked_state st_update_gp = {
    },
    update_gp  				/* update */
 };
+
+
+
+static void
+update_tcp( struct st_context *st )
+{
+   struct st_tessctrl_program *sttcp;
+   struct st_tcp_variant_key key;
+
+   if (!st->ctx->TessCtrlProgram._Current) {
+      cso_set_tessctrl_shader_handle(st->cso_context, NULL);
+      return;
+   }
+
+   sttcp = st_tessctrl_program(st->ctx->TessCtrlProgram._Current);
+   assert(sttcp->Base.Base.Target == GL_TESS_CONTROL_PROGRAM_NV);
+
+   memset(&key, 0, sizeof(key));
+   key.st = st;
+
+   st->tcp_variant = st_get_tcp_variant(st, sttcp, &key);
+
+   st_reference_tesscprog(st, &st->tcp, sttcp);
+
+   cso_set_tessctrl_shader_handle(st->cso_context,
+                                  st->tcp_variant->driver_shader);
+}
+
+const struct st_tracked_state st_update_tcp = {
+   "st_update_tcp",			/* name */
+   {					/* dirty */
+      0,				/* mesa */
+      ST_NEW_TESSCTRL_PROGRAM           /* st */
+   },
+   update_tcp  				/* update */
+};
+
+
+
+static void
+update_tep( struct st_context *st )
+{
+   struct st_tesseval_program *sttep;
+   struct st_tep_variant_key key;
+
+   if (!st->ctx->TessEvalProgram._Current) {
+      cso_set_tesseval_shader_handle(st->cso_context, NULL);
+      return;
+   }
+
+   sttep = st_tesseval_program(st->ctx->TessEvalProgram._Current);
+   assert(sttep->Base.Base.Target == GL_TESS_EVALUATION_PROGRAM_NV);
+
+   memset(&key, 0, sizeof(key));
+   key.st = st;
+
+   st->tep_variant = st_get_tep_variant(st, sttep, &key);
+
+   st_reference_tesseprog(st, &st->tep, sttep);
+
+   cso_set_tesseval_shader_handle(st->cso_context,
+                                  st->tep_variant->driver_shader);
+}
+
+const struct st_tracked_state st_update_tep = {
+   "st_update_tep",			/* name */
+   {					/* dirty */
+      0,				/* mesa */
+      ST_NEW_TESSEVAL_PROGRAM           /* st */
+   },
+   update_tep  				/* update */
+};