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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
#pragma once
/** \file
* \ingroup bke
*/
/* struct DerivedMesh is used directly */
#include "BKE_DerivedMesh.h"
/* Thread sync primitives used directly. */
#include "BLI_threads.h"
#ifdef __cplusplus
extern "C" {
#endif
struct CCGEdge;
struct CCGElem;
struct CCGFace;
struct CCGVert;
struct DMFlagMat;
struct DerivedMesh;
struct EdgeHash;
struct MPoly;
struct Mesh;
struct MeshElemMap;
struct Object;
struct PBVH;
struct SubsurfModifierData;
/**************************** External *****************************/
typedef enum {
SUBSURF_USE_RENDER_PARAMS = 1,
SUBSURF_IS_FINAL_CALC = 2,
SUBSURF_FOR_EDIT_MODE = 4,
SUBSURF_IN_EDIT_MODE = 8,
SUBSURF_ALLOC_PAINT_MASK = 16,
SUBSURF_USE_GPU_BACKEND = 32,
SUBSURF_IGNORE_SIMPLIFY = 64,
} SubsurfFlags;
struct DerivedMesh *subsurf_make_derived_from_derived(struct DerivedMesh *dm,
struct SubsurfModifierData *smd,
const struct Scene *scene,
float (*vertCos)[3],
SubsurfFlags flags);
void subsurf_calculate_limit_positions(struct Mesh *me, float (*r_positions)[3]);
/**
* Get grid-size from 'level', level must be greater than zero.
*/
int BKE_ccg_gridsize(int level);
/**
* X/Y grid coordinates at 'low_level' can be multiplied by the result
* of this function to convert to grid coordinates at 'high_level'.
*/
int BKE_ccg_factor(int low_level, int high_level);
typedef enum MultiresModifiedFlags {
/* indicates the grids have been sculpted on, so MDisps
* have to be updated */
MULTIRES_COORDS_MODIFIED = 1,
/* indicates elements have been hidden or unhidden */
MULTIRES_HIDDEN_MODIFIED = 2,
} MultiresModifiedFlags;
/**************************** Internal *****************************/
typedef struct CCGDerivedMesh {
DerivedMesh dm;
struct CCGSubSurf *ss;
int freeSS;
int drawInteriorEdges, useSubsurfUv;
struct {
int startVert;
struct CCGVert *vert;
} * vertMap;
struct {
int startVert;
int startEdge;
struct CCGEdge *edge;
} * edgeMap;
struct {
int startVert;
int startEdge;
int startFace;
struct CCGFace *face;
} * faceMap;
short *edgeFlags;
struct DMFlagMat *faceFlags;
int *reverseFaceMap;
struct PBVH *pbvh;
struct MeshElemMap *pmap;
int *pmap_mem;
struct CCGElem **gridData;
int *gridOffset;
struct CCGFace **gridFaces;
struct DMFlagMat *gridFlagMats;
unsigned int **gridHidden;
/* Elements in arrays above. */
unsigned int numGrid;
struct {
struct MultiresModifierData *mmd;
int local_mmd;
int lvl, totlvl;
float (*orco)[3];
struct Object *ob;
MultiresModifiedFlags modified_flags;
} multires;
struct EdgeHash *ehash;
ThreadMutex loops_cache_lock;
ThreadRWMutex origindex_cache_rwlock;
} CCGDerivedMesh;
#ifdef __cplusplus
}
#endif
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