BKE_subsurf.hh

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

 
/* struct DerivedMesh is used directly */
#include "BKE_mesh_legacy_derived_mesh.hh"
 
/* Thread sync primitives used directly. */
#include "BLI_ordered_edge.hh"
#include "BLI_threads.h"
#include "BLI_utildefines.h"
#include "BLI_vector_set.hh"
 
struct CCGEdge;
struct CCGElem;
struct CCGFace;
struct CCGSubSurf;
struct CCGVert;
struct DerivedMesh;
struct Mesh;
struct MultiresModifierData;
struct Object;
struct Scene;
 
namespace blender::bke::pbvh {
class Tree;
}
struct SubsurfModifierData;
 
/**************************** External *****************************/
 
enum SubsurfFlags {
  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,
};
ENUM_OPERATORS(SubsurfFlags, SUBSURF_IGNORE_SIMPLIFY);
 
DerivedMesh *subsurf_make_derived_from_derived(DerivedMesh *dm,
                                               SubsurfModifierData *smd,
                                               const Scene *scene,
                                               float (*vertCos)[3],
                                               SubsurfFlags flags);
 
void subsurf_calculate_limit_positions(Mesh *mesh, float (*r_positions)[3]);

int BKE_ccg_gridsize(int level);

int BKE_ccg_factor(int low_level, int high_level);
 
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,
};
 
/**************************** Internal *****************************/
 
struct CCGDerivedMesh {
  DerivedMesh dm;
 
  CCGSubSurf *ss;
  int freeSS;
  int drawInteriorEdges, useSubsurfUv;
 
  struct {
    int startVert;
    CCGVert *vert;
  } *vertMap;
  struct {
    int startVert;
    int startEdge;
    CCGEdge *edge;
  } *edgeMap;
  struct {
    int startVert;
    int startEdge;
    int startFace;
    CCGFace *face;
  } *faceMap;
 
  CCGElem **gridData;
  int *gridOffset;
  CCGFace **gridFaces;
  unsigned int **gridHidden;
  /* Elements in arrays above. */
  unsigned int numGrid;
 
  struct {
    MultiresModifierData *mmd;
    int local_mmd;
 
    int lvl, totlvl;
    float (*orco)[3];
 
    Object *ob;
    MultiresModifiedFlags modified_flags;
  } multires;
 
  blender::VectorSet<blender::OrderedEdge> *ehash;
 
  ThreadMutex loops_cache_lock;
  ThreadRWMutex origindex_cache_rwlock;
};