NOD_geometry_nodes_dependencies.hh

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/* SPDX-FileCopyrightText: 2024 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#pragma once
 
#include "BLI_map.hh"
#include "BLI_struct_equality_utils.hh"
 
struct ID;
struct Object;
struct bNodeTree;
 
namespace blender::nodes {

struct GeometryNodesEvalDependencies {
  struct ObjectDependencyInfo {
    bool transform = false;
    bool geometry = false;
    bool camera_parameters = false;
 
    BLI_STRUCT_EQUALITY_OPERATORS_3(ObjectDependencyInfo, transform, geometry, camera_parameters);
  };
  static constexpr ObjectDependencyInfo all_object_deps{true, true, true};

  Map<uint32_t, ID *> ids;

  Map<uint32_t, ObjectDependencyInfo> objects_info;
 
  bool needs_own_transform = false;
  bool needs_active_camera = false;
  bool needs_scene_render_params = false;
  bool time_dependent = false;

  void add_generic_id(ID *id);

  void add_generic_id_full(ID *id);

  void add_object(Object *object, const ObjectDependencyInfo &object_deps = all_object_deps);

  void merge(const GeometryNodesEvalDependencies &other);
 
  BLI_STRUCT_EQUALITY_OPERATORS_6(GeometryNodesEvalDependencies,
                                  ids,
                                  objects_info,
                                  needs_own_transform,
                                  needs_active_camera,
                                  needs_scene_render_params,
                                  time_dependent);
};

GeometryNodesEvalDependencies gather_geometry_nodes_eval_dependencies_recursive(
    const bNodeTree &ntree);
GeometryNodesEvalDependencies gather_geometry_nodes_eval_dependencies_with_cache(
    const bNodeTree &ntree);
 
}  // namespace blender::nodes