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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2006 Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup bke
* \section aboutcdderivedmesh CDDerivedMesh interface
* CDDerivedMesh (CD = Custom Data) is a DerivedMesh backend which stores
* mesh elements (vertices, edges and faces) as layers of custom element data.
*/
#ifndef __BKE_CDDERIVEDMESH_H__
#define __BKE_CDDERIVEDMESH_H__
#include "BKE_DerivedMesh.h"
#include "BKE_customdata.h"
struct BMEditMesh;
struct CustomData_MeshMasks;
struct DerivedMesh;
struct Mesh;
/* creates a new CDDerivedMesh */
struct DerivedMesh *CDDM_new(int numVerts, int numEdges, int numFaces, int numLoops, int numPolys);
/* creates a CDDerivedMesh from the given Mesh, this will reference the
* original data in Mesh, but it is safe to apply vertex coordinates or
* calculate normals as those functions will automatically create new
* data to not overwrite the original */
struct DerivedMesh *CDDM_from_mesh(struct Mesh *mesh);
/* creates a CDDerivedMesh from the given Mesh with custom allocation type. */
struct DerivedMesh *CDDM_from_mesh_ex(struct Mesh *mesh,
eCDAllocType alloctype,
const struct CustomData_MeshMasks *mask);
/* Copies the given DerivedMesh with verts, faces & edges stored as
* custom element data.
*/
struct DerivedMesh *CDDM_copy(struct DerivedMesh *dm);
void CDDM_recalc_looptri(struct DerivedMesh *dm);
/* vertex/edge/face access functions
* should always succeed if index is within bounds
* note these return pointers - any change modifies the internals of the mesh
*/
struct MVert *CDDM_get_vert(struct DerivedMesh *dm, int index);
struct MEdge *CDDM_get_edge(struct DerivedMesh *dm, int index);
struct MFace *CDDM_get_tessface(struct DerivedMesh *dm, int index);
struct MLoop *CDDM_get_loop(struct DerivedMesh *dm, int index);
struct MPoly *CDDM_get_poly(struct DerivedMesh *dm, int index);
/* vertex/edge/face array access functions - return the array holding the
* desired data
* should always succeed
* note these return pointers - any change modifies the internals of the mesh
*/
struct MVert *CDDM_get_verts(struct DerivedMesh *dm);
struct MEdge *CDDM_get_edges(struct DerivedMesh *dm);
struct MFace *CDDM_get_tessfaces(struct DerivedMesh *dm);
struct MLoop *CDDM_get_loops(struct DerivedMesh *dm);
struct MPoly *CDDM_get_polys(struct DerivedMesh *dm);
#endif
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