source/blender/depsgraph/intern/builder/pipeline.h

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/* SPDX-FileCopyrightText: 2020 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

 
#pragma once
 
#include "deg_builder_cache.h"
 
struct Depsgraph;
struct Main;
struct Scene;
struct ViewLayer;
 
namespace blender::deg {
 
struct Depsgraph;
class DepsgraphNodeBuilder;
class DepsgraphRelationBuilder;
 
/* Base class for Depsgraph Builder pipelines.
 *
 * Basically it runs through the following steps:
 * - sanity check
 * - build nodes
 * - build relations
 * - finalize
 */
class AbstractBuilderPipeline {
 public:
  AbstractBuilderPipeline(::Depsgraph *graph);
  virtual ~AbstractBuilderPipeline() = default;
 
  void build();
 
 protected:
  Depsgraph *deg_graph_;
  Main *bmain_;
  Scene *scene_;
  ViewLayer *view_layer_;
  DepsgraphBuilderCache builder_cache_;
 
  virtual std::unique_ptr<DepsgraphNodeBuilder> construct_node_builder();
  virtual std::unique_ptr<DepsgraphRelationBuilder> construct_relation_builder();
 
  virtual void build_step_sanity_check();
  void build_step_nodes();
  void build_step_relations();
  void build_step_finalize();
 
  virtual void build_nodes(DepsgraphNodeBuilder &node_builder) = 0;
  virtual void build_relations(DepsgraphRelationBuilder &relation_builder) = 0;
};
 
}  // namespace blender::deg