Depsgraph: Use explicit parameters eval operation code

This replaces usage of generic PLACEHOLDEWR with string lookup with more
explicit opcode. This should make it faster to build dependency graph by
avoiding string comparisons when it's not needed.

There should be no user measurable different.

2 files changed, 24 insertions, 19 deletions

diff --git a/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc b/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
index 22c884a86de..0a497495406 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
@@ -578,9 +578,10 @@ void DepsgraphNodeBuilder::build_world(World *world)
 
 	/* world itself */
 	add_component_node(world_id, DEG_NODE_TYPE_PARAMETERS);
-
-	add_operation_node(world_id, DEG_NODE_TYPE_PARAMETERS, NULL,
-	                   DEG_OPCODE_PLACEHOLDER, "Parameters Eval");
+	add_operation_node(world_id,
+	                   DEG_NODE_TYPE_PARAMETERS,
+	                   NULL,
+	                   DEG_OPCODE_PARAMETERS_EVAL);
 
 	/* textures */
 	build_texture_stack(world->mtex);
@@ -734,8 +735,7 @@ void DepsgraphNodeBuilder::build_obdata_geom(Scene *scene, Object *ob)
 	op_node = add_operation_node(&ob->id,
 	                             DEG_NODE_TYPE_PARAMETERS,
 	                             NULL,
-	                             DEG_OPCODE_PLACEHOLDER,
-	                             "Parameters Eval");
+	                             DEG_OPCODE_PARAMETERS_EVAL);
 	op_node->set_as_exit();
 
 	/* Temporary uber-update node, which does everything.
@@ -883,8 +883,10 @@ void DepsgraphNodeBuilder::build_obdata_geom(Scene *scene, Object *ob)
 	op_node->set_as_exit();
 
 	/* Parameters for driver sources. */
-	add_operation_node(obdata, DEG_NODE_TYPE_PARAMETERS, NULL,
-	                   DEG_OPCODE_PLACEHOLDER, "Parameters Eval");
+	add_operation_node(obdata,
+	                   DEG_NODE_TYPE_PARAMETERS,
+	                   NULL,
+	                   DEG_OPCODE_PARAMETERS_EVAL);
 }
 
 /* Cameras */
@@ -899,8 +901,10 @@ void DepsgraphNodeBuilder::build_camera(Object *ob)
 
 	build_animdata(&cam->id);
 
-	add_operation_node(camera_id, DEG_NODE_TYPE_PARAMETERS, NULL,
-	                   DEG_OPCODE_PLACEHOLDER, "Parameters Eval");
+	add_operation_node(camera_id,
+	                   DEG_NODE_TYPE_PARAMETERS,
+	                   NULL,
+	                   DEG_OPCODE_PARAMETERS_EVAL);
 
 	if (cam->dof_ob != NULL) {
 		/* TODO(sergey): For now parametrs are on object level. */
@@ -924,8 +928,10 @@ void DepsgraphNodeBuilder::build_lamp(Object *ob)
 	add_component_node(lamp_id, DEG_NODE_TYPE_PARAMETERS);
 
 	/* TODO(sergey): Is it really how we're supposed to work with drivers? */
-	add_operation_node(lamp_id, DEG_NODE_TYPE_PARAMETERS, NULL,
-	                   DEG_OPCODE_PLACEHOLDER, "Parameters Eval");
+	add_operation_node(lamp_id,
+	                   DEG_NODE_TYPE_PARAMETERS,
+	                   NULL,
+	                   DEG_OPCODE_PARAMETERS_EVAL);
 
 	/* lamp's nodetree */
 	if (la->nodetree) {
@@ -948,8 +954,10 @@ void DepsgraphNodeBuilder::build_nodetree(bNodeTree *ntree)
 	build_animdata(ntree_id);
 
 	/* Parameters for drivers. */
-	op_node = add_operation_node(ntree_id, DEG_NODE_TYPE_PARAMETERS, NULL,
-	                             DEG_OPCODE_PLACEHOLDER, "Parameters Eval");
+	op_node = add_operation_node(ntree_id,
+	                             DEG_NODE_TYPE_PARAMETERS,
+	                             NULL,
+	                             DEG_OPCODE_PARAMETERS_EVAL);
 	op_node->set_as_exit();
 
 	/* nodetree's nodes... */
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
index 1b44026bc22..f0f4cf3dc29 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
@@ -1715,8 +1715,7 @@ void DepsgraphRelationBuilder::build_nodetree(bNodeTree *ntree)
 
 	OperationKey parameters_key(ntree_id,
 	                            DEG_NODE_TYPE_PARAMETERS,
-	                            DEG_OPCODE_PLACEHOLDER,
-	                            "Parameters Eval");
+	                            DEG_OPCODE_PARAMETERS_EVAL);
 
 	/* nodetree's nodes... */
 	LINKLIST_FOREACH (bNode *, bnode, &ntree->nodes) {
@@ -1735,8 +1734,7 @@ void DepsgraphRelationBuilder::build_nodetree(bNodeTree *ntree)
 				}
 				OperationKey group_parameters_key(&group_ntree->id,
 				                                  DEG_NODE_TYPE_PARAMETERS,
-				                                  DEG_OPCODE_PLACEHOLDER,
-				                                  "Parameters Eval");
+				                                  DEG_OPCODE_PARAMETERS_EVAL);
 				add_relation(group_parameters_key, parameters_key, "Group Node");
 			}
 		}
@@ -1768,8 +1766,7 @@ void DepsgraphRelationBuilder::build_material(Material *ma)
 		build_nodetree(ma->nodetree);
 		OperationKey ntree_key(&ma->nodetree->id,
 		                       DEG_NODE_TYPE_PARAMETERS,
-		                       DEG_OPCODE_PLACEHOLDER,
-		                       "Parameters Eval");
+		                       DEG_OPCODE_PARAMETERS_EVAL);
 		OperationKey material_key(&ma->id,
 		                          DEG_NODE_TYPE_SHADING,
 		                          DEG_OPCODE_PLACEHOLDER,