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blender-archive/source/blender/blenkernel/intern/modifiers_bmesh.c

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C

/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2005 by the Blender Foundation.
* All rights reserved.
*
* Contributor(s): Joseph Eagar
*
* ***** END GPL LICENSE BLOCK *****
*
* Modifier stack implementation.
*
* BKE_modifier.h contains the function prototypes for this file.
*
*/
#include "string.h"
#include "stdarg.h"
#include "math.h"
#include "float.h"
#include "ctype.h"
#include "BLI_utildefines.h"
#include "BLI_math.h"
#include "BLI_blenlib.h"
#include "BLI_kdopbvh.h"
#include "BLI_kdtree.h"
#include "BLI_linklist.h"
#include "BLI_rand.h"
#include "BLI_edgehash.h"
#include "BLI_ghash.h"
#include "BLI_memarena.h"
#include "MEM_guardedalloc.h"
#include "DNA_action_types.h"
#include "DNA_armature_types.h"
#include "DNA_camera_types.h"
#include "DNA_cloth_types.h"
#include "DNA_curve_types.h"
#include "DNA_effect_types.h"
#include "DNA_material_types.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_modifier_types.h"
#include "DNA_object_types.h"
#include "DNA_object_force.h"
#include "DNA_particle_types.h"
#include "DNA_scene_types.h"
#include "DNA_texture_types.h"
#include "BLI_editVert.h"
#include "BLI_array.h"
#include "BKE_main.h"
#include "BKE_anim.h"
#include "BKE_bmesh.h"
// XXX #include "BKE_booleanops.h"
#include "BKE_cloth.h"
#include "BKE_collision.h"
#include "BKE_cdderivedmesh.h"
#include "BKE_curve.h"
#include "BKE_customdata.h"
#include "BKE_DerivedMesh.h"
#include "BKE_displist.h"
#include "BKE_fluidsim.h"
#include "BKE_global.h"
#include "BKE_multires.h"
#include "BKE_lattice.h"
#include "BKE_library.h"
#include "BKE_material.h"
#include "BKE_mesh.h"
#include "BKE_modifier.h"
#include "BKE_object.h"
#include "BKE_particle.h"
#include "BKE_pointcache.h"
#include "BKE_softbody.h"
#include "BKE_subsurf.h"
#include "BKE_texture.h"
#include "BKE_tessmesh.h"
#include "depsgraph_private.h"
#include "BKE_deform.h"
#include "BKE_shrinkwrap.h"
#include "CCGSubSurf.h"
#include "RE_shader_ext.h"
#include "LOD_decimation.h"
/*converts a cddm to a BMEditMesh. if existing is non-NULL, the
new geometry will be put in there.*/
BMEditMesh *CDDM_To_BMesh(Object *ob, DerivedMesh *dm, BMEditMesh *existing, int do_tesselate)
{
int allocsize[4] = {512, 512, 2048, 512};
BMesh *bm, bmold; /*bmold is for storing old customdata layout*/
BMEditMesh *em = existing;
MVert *mv, *mvert;
MEdge *me, *medge;
MPoly *mpoly, *mp;
MLoop *mloop, *ml;
BMVert *v, **vtable, **verts=NULL;
BMEdge *e, **etable, **edges=NULL;
BMFace *f;
BMIter liter;
BLI_array_declare(verts);
BLI_array_declare(edges);
int i, j, k, totvert, totedge, totface;
if (em) bm = em->bm;
else bm = BM_Make_Mesh(ob, allocsize);
bmold = *bm;
/*merge custom data layout*/
CustomData_bmesh_merge(&dm->vertData, &bm->vdata, CD_MASK_DERIVEDMESH, CD_CALLOC, bm, BM_VERT);
CustomData_bmesh_merge(&dm->edgeData, &bm->edata, CD_MASK_DERIVEDMESH, CD_CALLOC, bm, BM_EDGE);
CustomData_bmesh_merge(&dm->loopData, &bm->ldata, CD_MASK_DERIVEDMESH, CD_CALLOC, bm, BM_LOOP);
CustomData_bmesh_merge(&dm->polyData, &bm->pdata, CD_MASK_DERIVEDMESH, CD_CALLOC, bm, BM_FACE);
totvert = dm->getNumVerts(dm);
totedge = dm->getNumEdges(dm);
totface = dm->getNumPolys(dm);
vtable = MEM_callocN(sizeof(void**)*totvert, "vert table in BMDM_Copy");
etable = MEM_callocN(sizeof(void**)*totedge, "edge table in BMDM_Copy");
/*do verts*/
mv = mvert = dm->dupVertArray(dm);
for (i=0; i<totvert; i++, mv++) {
v = BM_Make_Vert(bm, mv->co, NULL);
normal_short_to_float_v3(v->no, mv->no);
v->head.hflag = BM_Vert_Flag_From_MEFlag(mv->flag);
CustomData_to_bmesh_block(&dm->vertData, &bm->vdata, i, &v->head.data);
vtable[i] = v;
}
MEM_freeN(mvert);
/*do edges*/
me = medge = dm->dupEdgeArray(dm);
for (i=0; i<totedge; i++, me++) {
e = BM_Make_Edge(bm, vtable[me->v1], vtable[me->v2], NULL, 0);
e->head.hflag = BM_Edge_Flag_From_MEFlag(me->flag);
CustomData_to_bmesh_block(&dm->edgeData, &bm->edata, i, &e->head.data);
etable[i] = e;
}
MEM_freeN(medge);
/*do faces*/
mpoly = mp = dm->getPolyArray(dm);
mloop = dm->getLoopArray(dm);
for (i=0; i<dm->numPolyData; i++, mp++) {
BMLoop *l;
BLI_array_empty(verts);
BLI_array_empty(edges);
BLI_array_growitems(verts, mp->totloop);
BLI_array_growitems(edges, mp->totloop);
ml = mloop + mp->loopstart;
for (j = 0; j < mp->totloop; j++, ml++) {
verts[j] = vtable[ml->v];
edges[j] = etable[ml->e];
}
f = BM_Make_Ngon(bm, verts[0], verts[1], edges, mp->totloop, 0);
if (!f)
continue;
f->head.hflag = BM_Face_Flag_From_MEFlag(mp->flag);
f->mat_nr = mp->mat_nr;
l = BMIter_New(&liter, bm, BM_LOOPS_OF_FACE, f);
k = mp->loopstart;
for (j=0; l; l=BMIter_Step(&liter), k++) {
CustomData_to_bmesh_block(&dm->loopData, &bm->ldata, k, &l->head.data);
}
CustomData_to_bmesh_block(&dm->polyData, &bm->pdata,
i, &f->head.data);
}
MEM_freeN(vtable);
MEM_freeN(etable);
BLI_array_free(verts);
BLI_array_free(edges);
if (!em) {
em = BMEdit_Create(bm, do_tesselate);
}
else {
if (do_tesselate) {
BMEdit_RecalcTesselation(em);
}
}
return em;
}