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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2016 Blender Foundation. All rights reserved. */
/** \file
* \ingroup DNA
*/
#pragma once
#include "DNA_ID.h"
#ifdef __cplusplus
extern "C" {
#endif
struct GSet;
/* CacheFile::type */
typedef enum {
CACHEFILE_TYPE_ALEMBIC = 1,
CACHEFILE_TYPE_USD = 2,
CACHE_FILE_TYPE_INVALID = 0,
} eCacheFileType;
/* CacheFile::flag */
enum {
CACHEFILE_DS_EXPAND = (1 << 0),
CACHEFILE_UNUSED_0 = (1 << 1),
};
#if 0 /* UNUSED */
/* CacheFile::draw_flag */
enum {
CACHEFILE_KEYFRAME_DRAWN = (1 << 0),
};
#endif
/* Representation of an object's path inside the archive.
* Note that this is not a file path. */
typedef struct CacheObjectPath {
struct CacheObjectPath *next, *prev;
char path[4096];
} CacheObjectPath;
/* CacheFileLayer::flag */
enum { CACHEFILE_LAYER_HIDDEN = (1 << 0) };
typedef struct CacheFileLayer {
struct CacheFileLayer *next, *prev;
/** 1024 = FILE_MAX. */
char filepath[1024];
int flag;
int _pad;
} CacheFileLayer;
/* CacheFile::velocity_unit
* Determines what temporal unit is used to interpret velocity vectors for motion blur effects. */
enum {
CACHEFILE_VELOCITY_UNIT_FRAME,
CACHEFILE_VELOCITY_UNIT_SECOND,
};
typedef struct CacheFile {
ID id;
struct AnimData *adt;
/** Paths of the objects inside of the archive referenced by this CacheFile. */
ListBase object_paths;
ListBase layers;
/** 1024 = FILE_MAX. */
char filepath[1024];
char is_sequence;
char forward_axis;
char up_axis;
char override_frame;
float scale;
/** The frame/time to lookup in the cache file. */
float frame;
/** The frame offset to subtract. */
float frame_offset;
char _pad[4];
/** Animation flag. */
short flag;
/* eCacheFileType enum. */
char type;
/** Do not load data from the cache file and display objects in the scene as boxes, Cycles will
* load objects directly from the CacheFile. Other render engines which can load Alembic data
* directly can take care of rendering it themselves.
*/
char use_render_procedural;
char _pad1[3];
/** Enable data prefetching when using the Cycles Procedural. */
char use_prefetch;
/** Size in megabytes for the prefetch cache used by the Cycles Procedural. */
int prefetch_cache_size;
/** Index of the currently selected layer in the UI, starts at 1. */
int active_layer;
char _pad2[3];
char velocity_unit;
/* Name of the velocity property in the archive. */
char velocity_name[64];
/* Runtime */
struct CacheArchiveHandle *handle;
char handle_filepath[1024];
struct GSet *handle_readers;
} CacheFile;
#ifdef __cplusplus
}
#endif
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