Campbell Barton
deaff945d0
This resolves a performance regression in 2.8x where every edit-mode update performed an edit-mesh to mesh conversion. Now the conversion will be lazily initialized if/when it's required. New BKE_mesh_wrapper_* functions abstract over mesh data access. Currently only edit-mesh and regular meshes are supported. In the future sub-surface meshes may be supported too.
388 lines
12 KiB
C
388 lines
12 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/** \file
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* \ingroup bke
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*
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* Functions for iterating mesh features.
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*/
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#include "DNA_mesh_types.h"
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#include "DNA_meshdata_types.h"
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#include "BKE_customdata.h"
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#include "BKE_editmesh.h"
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#include "BKE_editmesh_cache.h"
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#include "BKE_mesh.h"
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#include "BKE_mesh_iterators.h"
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#include "BLI_bitmap.h"
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#include "BLI_math.h"
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#include "MEM_guardedalloc.h"
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/* Copied from cdDM_foreachMappedVert */
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void BKE_mesh_foreach_mapped_vert(Mesh *mesh,
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void (*func)(void *userData,
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int index,
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const float co[3],
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const float no_f[3],
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const short no_s[3]),
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void *userData,
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MeshForeachFlag flag)
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{
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if (mesh->edit_mesh != NULL) {
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BMEditMesh *em = mesh->edit_mesh;
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BMesh *bm = em->bm;
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BMIter iter;
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BMVert *eve;
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int i;
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if (mesh->runtime.edit_data->vertexCos != NULL) {
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const float(*vertexCos)[3] = mesh->runtime.edit_data->vertexCos;
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const float(*vertexNos)[3];
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if (flag & MESH_FOREACH_USE_NORMAL) {
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BKE_editmesh_cache_ensure_vert_normals(em, mesh->runtime.edit_data);
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vertexNos = mesh->runtime.edit_data->vertexNos;
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}
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else {
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vertexNos = NULL;
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}
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BM_ITER_MESH_INDEX (eve, &iter, bm, BM_VERTS_OF_MESH, i) {
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const float *no = (flag & MESH_FOREACH_USE_NORMAL) ? vertexNos[i] : NULL;
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func(userData, i, vertexCos[i], no, NULL);
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}
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}
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else {
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BM_ITER_MESH_INDEX (eve, &iter, bm, BM_VERTS_OF_MESH, i) {
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const float *no = (flag & MESH_FOREACH_USE_NORMAL) ? eve->no : NULL;
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func(userData, i, eve->co, no, NULL);
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}
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}
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}
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else {
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const MVert *mv = mesh->mvert;
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const int *index = CustomData_get_layer(&mesh->vdata, CD_ORIGINDEX);
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if (index) {
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for (int i = 0; i < mesh->totvert; i++, mv++) {
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const short *no = (flag & MESH_FOREACH_USE_NORMAL) ? mv->no : NULL;
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const int orig = *index++;
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if (orig == ORIGINDEX_NONE) {
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continue;
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}
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func(userData, orig, mv->co, NULL, no);
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}
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}
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else {
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for (int i = 0; i < mesh->totvert; i++, mv++) {
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const short *no = (flag & MESH_FOREACH_USE_NORMAL) ? mv->no : NULL;
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func(userData, i, mv->co, NULL, no);
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}
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}
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}
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}
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/* Copied from cdDM_foreachMappedEdge */
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void BKE_mesh_foreach_mapped_edge(
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Mesh *mesh,
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void (*func)(void *userData, int index, const float v0co[3], const float v1co[3]),
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void *userData)
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{
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if (mesh->edit_mesh != NULL) {
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BMEditMesh *em = mesh->edit_mesh;
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BMesh *bm = em->bm;
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BMIter iter;
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BMEdge *eed;
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int i;
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if (mesh->runtime.edit_data->vertexCos != NULL) {
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const float(*vertexCos)[3] = mesh->runtime.edit_data->vertexCos;
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BM_mesh_elem_index_ensure(bm, BM_VERT);
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BM_ITER_MESH_INDEX (eed, &iter, bm, BM_EDGES_OF_MESH, i) {
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func(userData,
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i,
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vertexCos[BM_elem_index_get(eed->v1)],
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vertexCos[BM_elem_index_get(eed->v2)]);
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}
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}
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else {
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BM_ITER_MESH_INDEX (eed, &iter, bm, BM_EDGES_OF_MESH, i) {
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func(userData, i, eed->v1->co, eed->v2->co);
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}
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}
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}
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else {
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const MVert *mv = mesh->mvert;
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const MEdge *med = mesh->medge;
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const int *index = CustomData_get_layer(&mesh->edata, CD_ORIGINDEX);
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if (index) {
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for (int i = 0; i < mesh->totedge; i++, med++) {
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const int orig = *index++;
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if (orig == ORIGINDEX_NONE) {
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continue;
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}
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func(userData, orig, mv[med->v1].co, mv[med->v2].co);
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}
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}
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else {
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for (int i = 0; i < mesh->totedge; i++, med++) {
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func(userData, i, mv[med->v1].co, mv[med->v2].co);
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}
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}
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}
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}
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/* Copied from cdDM_foreachMappedLoop */
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void BKE_mesh_foreach_mapped_loop(Mesh *mesh,
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void (*func)(void *userData,
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int vertex_index,
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int face_index,
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const float co[3],
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const float no[3]),
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void *userData,
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MeshForeachFlag flag)
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{
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/* We can't use dm->getLoopDataLayout(dm) here,
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* we want to always access dm->loopData, EditDerivedBMesh would
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* return loop data from bmesh itself. */
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if (mesh->edit_mesh != NULL) {
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BMEditMesh *em = mesh->edit_mesh;
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BMesh *bm = em->bm;
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BMIter iter;
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BMFace *efa;
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const float(*vertexCos)[3] = mesh->runtime.edit_data->vertexCos;
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/* XXX: investigate using EditMesh data. */
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const float(*lnors)[3] = (flag & MESH_FOREACH_USE_NORMAL) ?
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CustomData_get_layer(&mesh->ldata, CD_NORMAL) :
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NULL;
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int f_idx;
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BM_mesh_elem_index_ensure(bm, BM_VERT);
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BM_ITER_MESH_INDEX (efa, &iter, bm, BM_FACES_OF_MESH, f_idx) {
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BMLoop *l_iter, *l_first;
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l_iter = l_first = BM_FACE_FIRST_LOOP(efa);
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do {
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const BMVert *eve = l_iter->v;
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const int v_idx = BM_elem_index_get(eve);
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const float *no = lnors ? *lnors++ : NULL;
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func(userData, v_idx, f_idx, vertexCos ? vertexCos[v_idx] : eve->co, no);
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} while ((l_iter = l_iter->next) != l_first);
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}
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}
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else {
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const float(*lnors)[3] = (flag & MESH_FOREACH_USE_NORMAL) ?
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CustomData_get_layer(&mesh->ldata, CD_NORMAL) :
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NULL;
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const MVert *mv = mesh->mvert;
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const MLoop *ml = mesh->mloop;
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const MPoly *mp = mesh->mpoly;
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const int *v_index = CustomData_get_layer(&mesh->vdata, CD_ORIGINDEX);
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const int *f_index = CustomData_get_layer(&mesh->pdata, CD_ORIGINDEX);
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int p_idx, i;
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if (v_index || f_index) {
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for (p_idx = 0; p_idx < mesh->totpoly; p_idx++, mp++) {
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for (i = 0; i < mp->totloop; i++, ml++) {
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const int v_idx = v_index ? v_index[ml->v] : ml->v;
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const int f_idx = f_index ? f_index[p_idx] : p_idx;
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const float *no = lnors ? *lnors++ : NULL;
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if (ELEM(ORIGINDEX_NONE, v_idx, f_idx)) {
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continue;
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}
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func(userData, v_idx, f_idx, mv[ml->v].co, no);
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}
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}
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}
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else {
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for (p_idx = 0; p_idx < mesh->totpoly; p_idx++, mp++) {
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for (i = 0; i < mp->totloop; i++, ml++) {
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const int v_idx = ml->v;
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const int f_idx = p_idx;
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const float *no = lnors ? *lnors++ : NULL;
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func(userData, v_idx, f_idx, mv[ml->v].co, no);
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}
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}
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}
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}
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}
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/* Copied from cdDM_foreachMappedFaceCenter */
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void BKE_mesh_foreach_mapped_face_center(
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Mesh *mesh,
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void (*func)(void *userData, int index, const float cent[3], const float no[3]),
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void *userData,
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MeshForeachFlag flag)
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{
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if (mesh->edit_mesh != NULL) {
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BMEditMesh *em = mesh->edit_mesh;
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BMesh *bm = em->bm;
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const float(*polyCos)[3];
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const float(*polyNos)[3];
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BMFace *efa;
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BMIter iter;
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int i;
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BKE_editmesh_cache_ensure_poly_centers(em, mesh->runtime.edit_data);
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polyCos = mesh->runtime.edit_data->polyCos; /* always set */
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if (flag & MESH_FOREACH_USE_NORMAL) {
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BKE_editmesh_cache_ensure_poly_normals(em, mesh->runtime.edit_data);
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polyNos = mesh->runtime.edit_data->polyNos; /* maybe NULL */
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}
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else {
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polyNos = NULL;
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}
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if (polyNos) {
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BM_ITER_MESH_INDEX (efa, &iter, bm, BM_FACES_OF_MESH, i) {
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const float *no = polyNos[i];
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func(userData, i, polyCos[i], no);
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}
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}
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else {
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BM_ITER_MESH_INDEX (efa, &iter, bm, BM_FACES_OF_MESH, i) {
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const float *no = (flag & MESH_FOREACH_USE_NORMAL) ? efa->no : NULL;
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func(userData, i, polyCos[i], no);
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}
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}
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}
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else {
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const MVert *mvert = mesh->mvert;
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const MPoly *mp = mesh->mpoly;
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const MLoop *ml;
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float _no_buf[3];
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float *no = (flag & MESH_FOREACH_USE_NORMAL) ? _no_buf : NULL;
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const int *index = CustomData_get_layer(&mesh->pdata, CD_ORIGINDEX);
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if (index) {
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for (int i = 0; i < mesh->totpoly; i++, mp++) {
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const int orig = *index++;
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if (orig == ORIGINDEX_NONE) {
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continue;
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}
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float cent[3];
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ml = &mesh->mloop[mp->loopstart];
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BKE_mesh_calc_poly_center(mp, ml, mvert, cent);
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if (flag & MESH_FOREACH_USE_NORMAL) {
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BKE_mesh_calc_poly_normal(mp, ml, mvert, no);
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}
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func(userData, orig, cent, no);
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}
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}
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else {
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for (int i = 0; i < mesh->totpoly; i++, mp++) {
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float cent[3];
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ml = &mesh->mloop[mp->loopstart];
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BKE_mesh_calc_poly_center(mp, ml, mvert, cent);
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if (flag & MESH_FOREACH_USE_NORMAL) {
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BKE_mesh_calc_poly_normal(mp, ml, mvert, no);
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}
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func(userData, i, cent, no);
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}
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}
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}
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}
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/* Copied from cdDM_foreachMappedFaceCenter */
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void BKE_mesh_foreach_mapped_subdiv_face_center(
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Mesh *mesh,
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void (*func)(void *userData, int index, const float cent[3], const float no[3]),
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void *userData,
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MeshForeachFlag flag)
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{
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const MPoly *mp = mesh->mpoly;
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const MLoop *ml;
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const MVert *mv;
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float _no_buf[3];
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float *no = (flag & MESH_FOREACH_USE_NORMAL) ? _no_buf : NULL;
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const int *index = CustomData_get_layer(&mesh->pdata, CD_ORIGINDEX);
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if (index) {
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for (int i = 0; i < mesh->totpoly; i++, mp++) {
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const int orig = *index++;
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if (orig == ORIGINDEX_NONE) {
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continue;
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}
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ml = &mesh->mloop[mp->loopstart];
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for (int j = 0; j < mp->totloop; j++, ml++) {
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mv = &mesh->mvert[ml->v];
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if (mv->flag & ME_VERT_FACEDOT) {
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if (flag & MESH_FOREACH_USE_NORMAL) {
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normal_short_to_float_v3(no, mv->no);
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}
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func(userData, orig, mv->co, no);
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}
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}
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}
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}
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else {
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for (int i = 0; i < mesh->totpoly; i++, mp++) {
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ml = &mesh->mloop[mp->loopstart];
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for (int j = 0; j < mp->totloop; j++, ml++) {
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mv = &mesh->mvert[ml->v];
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if (mv->flag & ME_VERT_FACEDOT) {
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if (flag & MESH_FOREACH_USE_NORMAL) {
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normal_short_to_float_v3(no, mv->no);
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}
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func(userData, i, mv->co, no);
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}
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}
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}
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}
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}
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/* Helpers based on above foreach loopers> */
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typedef struct MappedVCosData {
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float (*vertexcos)[3];
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BLI_bitmap *vertex_visit;
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} MappedVCosData;
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static void get_vertexcos__mapFunc(void *user_data,
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int index,
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const float co[3],
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const float UNUSED(no_f[3]),
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const short UNUSED(no_s[3]))
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{
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MappedVCosData *mapped_vcos_data = (MappedVCosData *)user_data;
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if (BLI_BITMAP_TEST(mapped_vcos_data->vertex_visit, index) == 0) {
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/* We need coord from prototype vertex, not from copies,
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* we assume they stored in the beginning of vertex array stored in evaluated mesh
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* (mirror modifier for eg does this). */
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copy_v3_v3(mapped_vcos_data->vertexcos[index], co);
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BLI_BITMAP_ENABLE(mapped_vcos_data->vertex_visit, index);
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}
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}
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void BKE_mesh_foreach_mapped_vert_coords_get(Mesh *me_eval, float (*r_cos)[3], const int totcos)
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{
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MappedVCosData user_data;
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memset(r_cos, 0, sizeof(*r_cos) * totcos);
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user_data.vertexcos = r_cos;
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user_data.vertex_visit = BLI_BITMAP_NEW(totcos, __func__);
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BKE_mesh_foreach_mapped_vert(me_eval, get_vertexcos__mapFunc, &user_data, MESH_FOREACH_NOP);
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MEM_freeN(user_data.vertex_visit);
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}
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