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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.
*/
/** \file
* \ingroup bke
*
* The primary purpose of this API is to avoid unnecessary mesh conversion for the final
* output of a modified mesh.
*
* This API handles the case when the modifier stack outputs a mesh which does not have
* #Mesh data (#MPoly, #MLoop, #MEdge, #MVert).
* Currently this is used so the resulting mesh can have #BMEditMesh data,
* postponing the converting until it's needed or avoiding conversion entirely
* which can be an expensive operation.
* Once converted, the meshes type changes to #ME_WRAPPER_TYPE_MDATA,
* although the edit mesh is not cleared.
*
* This API exposes functions that abstract over the different kinds of internal data,
* as well as supporting converting the mesh into regular mesh.
*/
#include "MEM_guardedalloc.h"
#include "DNA_defaults.h"
#include "DNA_key_types.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_object_types.h"
#include "BLI_bitmap.h"
#include "BLI_edgehash.h"
#include "BLI_ghash.h"
#include "BLI_hash.h"
#include "BLI_linklist.h"
#include "BLI_math.h"
#include "BLI_memarena.h"
#include "BLI_string.h"
#include "BLI_utildefines.h"
#include "BLT_translation.h"
#include "BKE_animsys.h"
#include "BKE_editmesh.h"
#include "BKE_editmesh_cache.h"
#include "BKE_global.h"
#include "BKE_idtype.h"
#include "BKE_key.h"
#include "BKE_lib_id.h"
#include "BKE_main.h"
#include "BKE_material.h"
#include "BKE_mesh.h"
#include "BKE_mesh_runtime.h"
#include "BKE_modifier.h"
#include "BKE_multires.h"
#include "BKE_object.h"
#include "PIL_time.h"
#include "DEG_depsgraph.h"
#include "DEG_depsgraph_query.h"
Mesh *BKE_mesh_wrapper_from_editmesh_with_coords(BMEditMesh *em,
const CustomData_MeshMasks *cd_mask_extra,
float (*vertexCos)[3],
const Mesh *me_settings)
{
Mesh *me = BKE_id_new_nomain(ID_ME, NULL);
BKE_mesh_copy_settings(me, me_settings);
BKE_mesh_runtime_ensure_edit_data(me);
me->runtime.wrapper_type = ME_WRAPPER_TYPE_BMESH;
if (cd_mask_extra) {
me->runtime.cd_mask_extra = *cd_mask_extra;
}
/* Use edit-mesh directly where possible. */
me->runtime.is_original = true;
me->edit_mesh = MEM_dupallocN(em);
/* Make sure, we crash if these are ever used. */
#ifdef DEBUG
me->totvert = INT_MAX;
me->totedge = INT_MAX;
me->totpoly = INT_MAX;
me->totloop = INT_MAX;
#else
me->totvert = 0;
me->totedge = 0;
me->totpoly = 0;
me->totloop = 0;
#endif
EditMeshData *edit_data = me->runtime.edit_data;
edit_data->vertexCos = vertexCos;
return me;
}
Mesh *BKE_mesh_wrapper_from_editmesh(BMEditMesh *em,
const CustomData_MeshMasks *cd_mask_extra,
const Mesh *me_settings)
{
return BKE_mesh_wrapper_from_editmesh_with_coords(em, cd_mask_extra, NULL, me_settings);
}
void BKE_mesh_wrapper_ensure_mdata(Mesh *me)
{
if (me->runtime.wrapper_type == ME_WRAPPER_TYPE_MDATA) {
return;
}
const eMeshWrapperType geom_type_orig = me->runtime.wrapper_type;
me->runtime.wrapper_type = ME_WRAPPER_TYPE_MDATA;
switch (geom_type_orig) {
case ME_WRAPPER_TYPE_MDATA: {
break; /* Quiet warning. */
}
case ME_WRAPPER_TYPE_BMESH: {
me->totvert = 0;
me->totedge = 0;
me->totpoly = 0;
me->totloop = 0;
BLI_assert(me->edit_mesh != NULL);
BLI_assert(me->runtime.edit_data != NULL);
BMEditMesh *em = me->edit_mesh;
BM_mesh_bm_to_me_for_eval(em->bm, me, &me->runtime.cd_mask_extra);
EditMeshData *edit_data = me->runtime.edit_data;
if (edit_data->vertexCos) {
BKE_mesh_vert_coords_apply(me, edit_data->vertexCos);
me->runtime.is_original = false;
}
break;
}
}
if (me->runtime.wrapper_type_finalize) {
BKE_mesh_wrapper_deferred_finalize(me, &me->runtime.cd_mask_extra);
}
}
bool BKE_mesh_wrapper_minmax(const Mesh *me, float min[3], float max[3])
{
switch ((eMeshWrapperType)me->runtime.wrapper_type) {
case ME_WRAPPER_TYPE_BMESH:
return BKE_editmesh_cache_calc_minmax(me->edit_mesh, me->runtime.edit_data, min, max);
case ME_WRAPPER_TYPE_MDATA:
return BKE_mesh_minmax(me, min, max);
}
BLI_assert(0);
return false;
}
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