DNA_collection_types.h

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/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

 
#pragma once
 
#include "DNA_ID.h"
#include "DNA_defs.h"
#include "DNA_listBase.h"
 
struct Collection;
struct Object;
struct GHash;
 
/* Light linking relation of a collection or an object. */
typedef struct CollectionLightLinking {
  /* Light and shadow linking configuration, an enumerator of eCollectionLightLinkingState.
   * The meaning depends on whether the collection is specified as a light or shadow linking on the
   * Object's LightLinking.
   *
   * For the light linking collection:
   *
   *   - INCLUDE: the receiver is included into the light linking and is only receiving lights from
   *     emitters which include it in their light linking collections. The receiver is not affected
   *     by regular scene lights.
   *
   *   - EXCLUDE: the receiver does not receive light from this emitter, but is lit by regular
   *     lights in the scene or by emitters which are linked to it via INCLUDE on their
   *     light_state.
   *
   * For the shadow linking collection:
   *
   *   - INCLUDE: the collection or object casts shadows from the emitter. It does not cast shadow
   *     from light sources which do not have INCLUDE on their light linking configuration for it.
   *
   *   - EXCLUDE: the collection or object does not cast shadow when lit by this emitter, but does
   *     for other light sources in the scene. */
  uint8_t link_state;
 
  uint8_t _pad[3];
} CollectionLightLinking;
 
typedef struct CollectionObject {
  struct CollectionObject *next, *prev;
  struct Object *ob;
 
  CollectionLightLinking light_linking;
  int _pad;
} CollectionObject;
 
typedef struct CollectionChild {
  struct CollectionChild *next, *prev;
  struct Collection *collection;
 
  CollectionLightLinking light_linking;
  int _pad;
} CollectionChild;
 
/* Collection IO property storage and access. */
typedef struct CollectionExport {
  struct CollectionExport *next, *prev;

  char fh_idname[64];
  char name[64];
 
  IDProperty *export_properties;
  uint32_t flag;
 
  uint32_t _pad0;
} CollectionExport;
 
typedef enum IOHandlerPanelFlag {
  IO_HANDLER_PANEL_OPEN = 1 << 0,
} IOHandlerPanelFlag;
 
/* Light linking state of object or collection: defines how they react to the emitters in the
 * scene. See the comment for the link_state in the CollectionLightLinking for the details. */
typedef enum eCollectionLightLinkingState {
  COLLECTION_LIGHT_LINKING_STATE_INCLUDE = 0,
  COLLECTION_LIGHT_LINKING_STATE_EXCLUDE = 1,
} eCollectionLightLinkingState;
 
enum eCollectionLineArt_Usage {
  COLLECTION_LRT_INCLUDE = 0,
  COLLECTION_LRT_OCCLUSION_ONLY = (1 << 0),
  COLLECTION_LRT_EXCLUDE = (1 << 1),
  COLLECTION_LRT_INTERSECTION_ONLY = (1 << 2),
  COLLECTION_LRT_NO_INTERSECTION = (1 << 3),
  COLLECTION_LRT_FORCE_INTERSECTION = (1 << 4),
};
 
enum eCollectionLineArt_Flags {
  COLLECTION_LRT_USE_INTERSECTION_MASK = (1 << 0),
  COLLECTION_LRT_USE_INTERSECTION_PRIORITY = (1 << 1),
};
 
typedef struct Collection_Runtime {
  ListBase object_cache;

  ListBase object_cache_instanced;

  ListBase parents;

  struct GHash *gobject_hash;
 
  uint8_t tag;
 
  char _pad0[7];
} Collection_Runtime;
 
typedef struct Collection {
#ifdef __cplusplus
  static constexpr ID_Type id_type = ID_GR;
#endif
 
  ID id;

  ID *owner_id;

  ListBase gobject;
  ListBase children;
 
  char _pad0[4];
 
  int active_exporter_index;
  ListBase exporters;
 
  struct PreviewImage *preview;
 
  unsigned int layer DNA_DEPRECATED;
  float instance_offset[3];
 
  uint8_t flag;
  int8_t color_tag;
 
  char _pad1[2];
 
  uint8_t lineart_usage; /* #eCollectionLineArt_Usage */
  uint8_t lineart_flags; /* #eCollectionLineArt_Flags */
  uint8_t lineart_intersection_mask;
  uint8_t lineart_intersection_priority;
 
  struct ViewLayer *view_layer DNA_DEPRECATED;
 
  /* Keep last. */
  Collection_Runtime runtime;
} Collection;

enum {
  COLLECTION_HIDE_VIEWPORT = (1 << 0),
  COLLECTION_HIDE_SELECT = (1 << 1),
  // COLLECTION_DISABLED_DEPRECATED = (1 << 2), /* DIRTY */
  COLLECTION_HIDE_RENDER = (1 << 3),
  COLLECTION_HAS_OBJECT_CACHE = (1 << 4),
  COLLECTION_IS_MASTER = (1 << 5),
  COLLECTION_HAS_OBJECT_CACHE_INSTANCED = (1 << 6),
};
 
#define COLLECTION_FLAG_ALL_RUNTIME \
  (COLLECTION_HAS_OBJECT_CACHE | COLLECTION_HAS_OBJECT_CACHE_INSTANCED)

enum {
  COLLECTION_TAG_RELATION_REBUILD = (1 << 0),
  COLLECTION_TAG_COLLECTION_OBJECT_DIRTY = (1 << 1),
};

typedef enum CollectionColorTag {
  COLLECTION_COLOR_NONE = -1,
  COLLECTION_COLOR_01,
  COLLECTION_COLOR_02,
  COLLECTION_COLOR_03,
  COLLECTION_COLOR_04,
  COLLECTION_COLOR_05,
  COLLECTION_COLOR_06,
  COLLECTION_COLOR_07,
  COLLECTION_COLOR_08,
 
  COLLECTION_COLOR_TOT,
} CollectionColorTag;