diff options
author | Erik <ecke101@gmail.com> | 2021-11-06 21:16:37 +0300 |
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committer | Erik <ecke101@gmail.com> | 2021-11-06 21:16:37 +0300 |
commit | 6002914f141f0c777ae76975eb1273bb054321f1 (patch) | |
tree | 6e2922689e9255463217ada78247bd315d3d349d /source/blender/blenkernel/intern/mesh.c | |
parent | f315a4698208c670aab8aec639a4a29244213002 (diff) |
Cleanup: Convert mesh.c to C++
This commit renames mesh.c to mesh.cc and makes
it compile in C++. Can be useful in the future to be able
to use C++ functionality in existing and new functions.
Differential Revision: https://developer.blender.org/D13134
Diffstat (limited to 'source/blender/blenkernel/intern/mesh.c')
-rw-r--r-- | source/blender/blenkernel/intern/mesh.c | 2266 |
1 files changed, 0 insertions, 2266 deletions
diff --git a/source/blender/blenkernel/intern/mesh.c b/source/blender/blenkernel/intern/mesh.c deleted file mode 100644 index 7277f7ad209..00000000000 --- a/source/blender/blenkernel/intern/mesh.c +++ /dev/null @@ -1,2266 +0,0 @@ -/* - * 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) 2001-2002 by NaN Holding BV. - * All rights reserved. - */ - -/** \file - * \ingroup bke - */ - -#include "MEM_guardedalloc.h" - -/* Allow using deprecated functionality for .blend file I/O. */ -#define DNA_DEPRECATED_ALLOW - -#include "DNA_defaults.h" -#include "DNA_key_types.h" -#include "DNA_material_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_endian_switch.h" -#include "BLI_ghash.h" -#include "BLI_hash.h" -#include "BLI_linklist.h" -#include "BLI_listbase.h" -#include "BLI_math.h" -#include "BLI_memarena.h" -#include "BLI_string.h" -#include "BLI_utildefines.h" - -#include "BLT_translation.h" - -#include "BKE_anim_data.h" -#include "BKE_deform.h" -#include "BKE_editmesh.h" -#include "BKE_global.h" -#include "BKE_idtype.h" -#include "BKE_key.h" -#include "BKE_lib_id.h" -#include "BKE_lib_query.h" -#include "BKE_main.h" -#include "BKE_material.h" -#include "BKE_mesh.h" -#include "BKE_mesh_runtime.h" -#include "BKE_mesh_wrapper.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" - -#include "BLO_read_write.h" - -static void mesh_clear_geometry(Mesh *mesh); -static void mesh_tessface_clear_intern(Mesh *mesh, int free_customdata); - -static void mesh_init_data(ID *id) -{ - Mesh *mesh = (Mesh *)id; - - BLI_assert(MEMCMP_STRUCT_AFTER_IS_ZERO(mesh, id)); - - MEMCPY_STRUCT_AFTER(mesh, DNA_struct_default_get(Mesh), id); - - CustomData_reset(&mesh->vdata); - CustomData_reset(&mesh->edata); - CustomData_reset(&mesh->fdata); - CustomData_reset(&mesh->pdata); - CustomData_reset(&mesh->ldata); - - BKE_mesh_runtime_reset(mesh); - - mesh->face_sets_color_seed = BLI_hash_int(PIL_check_seconds_timer_i() & UINT_MAX); -} - -static void mesh_copy_data(Main *bmain, ID *id_dst, const ID *id_src, const int flag) -{ - Mesh *mesh_dst = (Mesh *)id_dst; - const Mesh *mesh_src = (const Mesh *)id_src; - - BKE_mesh_runtime_reset_on_copy(mesh_dst, flag); - if ((mesh_src->id.tag & LIB_TAG_NO_MAIN) == 0) { - /* This is a direct copy of a main mesh, so for now it has the same topology. */ - mesh_dst->runtime.deformed_only = true; - } - /* This option is set for run-time meshes that have been copied from the current objects mode. - * Currently this is used for edit-mesh although it could be used for sculpt or other - * kinds of data specific to an objects mode. - * - * The flag signals that the mesh hasn't been modified from the data that generated it, - * allowing us to use the object-mode data for drawing. - * - * While this could be the callers responsibility, keep here since it's - * highly unlikely we want to create a duplicate and not use it for drawing. */ - mesh_dst->runtime.is_original = false; - - /* Only do tessface if we have no polys. */ - const bool do_tessface = ((mesh_src->totface != 0) && (mesh_src->totpoly == 0)); - - CustomData_MeshMasks mask = CD_MASK_MESH; - - if (mesh_src->id.tag & LIB_TAG_NO_MAIN) { - /* For copies in depsgraph, keep data like origindex and orco. */ - CustomData_MeshMasks_update(&mask, &CD_MASK_DERIVEDMESH); - } - - mesh_dst->mat = MEM_dupallocN(mesh_src->mat); - - BKE_defgroup_copy_list(&mesh_dst->vertex_group_names, &mesh_src->vertex_group_names); - - const eCDAllocType alloc_type = (flag & LIB_ID_COPY_CD_REFERENCE) ? CD_REFERENCE : CD_DUPLICATE; - CustomData_copy(&mesh_src->vdata, &mesh_dst->vdata, mask.vmask, alloc_type, mesh_dst->totvert); - CustomData_copy(&mesh_src->edata, &mesh_dst->edata, mask.emask, alloc_type, mesh_dst->totedge); - CustomData_copy(&mesh_src->ldata, &mesh_dst->ldata, mask.lmask, alloc_type, mesh_dst->totloop); - CustomData_copy(&mesh_src->pdata, &mesh_dst->pdata, mask.pmask, alloc_type, mesh_dst->totpoly); - if (do_tessface) { - CustomData_copy(&mesh_src->fdata, &mesh_dst->fdata, mask.fmask, alloc_type, mesh_dst->totface); - } - else { - mesh_tessface_clear_intern(mesh_dst, false); - } - - BKE_mesh_update_customdata_pointers(mesh_dst, do_tessface); - - mesh_dst->edit_mesh = NULL; - - mesh_dst->mselect = MEM_dupallocN(mesh_dst->mselect); - - /* TODO: Do we want to add flag to prevent this? */ - if (mesh_src->key && (flag & LIB_ID_COPY_SHAPEKEY)) { - BKE_id_copy_ex(bmain, &mesh_src->key->id, (ID **)&mesh_dst->key, flag); - /* XXX This is not nice, we need to make BKE_id_copy_ex fully re-entrant... */ - mesh_dst->key->from = &mesh_dst->id; - } -} - -static void mesh_free_data(ID *id) -{ - Mesh *mesh = (Mesh *)id; - - BLI_freelistN(&mesh->vertex_group_names); - - if (mesh->edit_mesh) { - if (mesh->edit_mesh->is_shallow_copy == false) { - BKE_editmesh_free_data(mesh->edit_mesh); - } - MEM_freeN(mesh->edit_mesh); - mesh->edit_mesh = NULL; - } - - BKE_mesh_runtime_clear_cache(mesh); - mesh_clear_geometry(mesh); - MEM_SAFE_FREE(mesh->mat); -} - -static void mesh_foreach_id(ID *id, LibraryForeachIDData *data) -{ - Mesh *mesh = (Mesh *)id; - BKE_LIB_FOREACHID_PROCESS_IDSUPER(data, mesh->texcomesh, IDWALK_CB_NEVER_SELF); - BKE_LIB_FOREACHID_PROCESS_IDSUPER(data, mesh->key, IDWALK_CB_USER); - for (int i = 0; i < mesh->totcol; i++) { - BKE_LIB_FOREACHID_PROCESS_IDSUPER(data, mesh->mat[i], IDWALK_CB_USER); - } -} - -static void mesh_blend_write(BlendWriter *writer, ID *id, const void *id_address) -{ - Mesh *mesh = (Mesh *)id; - const bool is_undo = BLO_write_is_undo(writer); - - CustomDataLayer *vlayers = NULL, vlayers_buff[CD_TEMP_CHUNK_SIZE]; - CustomDataLayer *elayers = NULL, elayers_buff[CD_TEMP_CHUNK_SIZE]; - CustomDataLayer *flayers = NULL, flayers_buff[CD_TEMP_CHUNK_SIZE]; - CustomDataLayer *llayers = NULL, llayers_buff[CD_TEMP_CHUNK_SIZE]; - CustomDataLayer *players = NULL, players_buff[CD_TEMP_CHUNK_SIZE]; - - /* cache only - don't write */ - mesh->mface = NULL; - mesh->totface = 0; - memset(&mesh->fdata, 0, sizeof(mesh->fdata)); - memset(&mesh->runtime, 0, sizeof(mesh->runtime)); - flayers = flayers_buff; - - /* Do not store actual geometry data in case this is a library override ID. */ - if (ID_IS_OVERRIDE_LIBRARY(mesh) && !is_undo) { - mesh->mvert = NULL; - mesh->totvert = 0; - memset(&mesh->vdata, 0, sizeof(mesh->vdata)); - vlayers = vlayers_buff; - - mesh->medge = NULL; - mesh->totedge = 0; - memset(&mesh->edata, 0, sizeof(mesh->edata)); - elayers = elayers_buff; - - mesh->mloop = NULL; - mesh->totloop = 0; - memset(&mesh->ldata, 0, sizeof(mesh->ldata)); - llayers = llayers_buff; - - mesh->mpoly = NULL; - mesh->totpoly = 0; - memset(&mesh->pdata, 0, sizeof(mesh->pdata)); - players = players_buff; - } - else { - CustomData_blend_write_prepare(&mesh->vdata, &vlayers, vlayers_buff, ARRAY_SIZE(vlayers_buff)); - CustomData_blend_write_prepare(&mesh->edata, &elayers, elayers_buff, ARRAY_SIZE(elayers_buff)); - CustomData_blend_write_prepare(&mesh->ldata, &llayers, llayers_buff, ARRAY_SIZE(llayers_buff)); - CustomData_blend_write_prepare(&mesh->pdata, &players, players_buff, ARRAY_SIZE(players_buff)); - } - - BLO_write_id_struct(writer, Mesh, id_address, &mesh->id); - BKE_id_blend_write(writer, &mesh->id); - - /* direct data */ - if (mesh->adt) { - BKE_animdata_blend_write(writer, mesh->adt); - } - - BKE_defbase_blend_write(writer, &mesh->vertex_group_names); - - BLO_write_pointer_array(writer, mesh->totcol, mesh->mat); - BLO_write_raw(writer, sizeof(MSelect) * mesh->totselect, mesh->mselect); - - CustomData_blend_write( - writer, &mesh->vdata, vlayers, mesh->totvert, CD_MASK_MESH.vmask, &mesh->id); - CustomData_blend_write( - writer, &mesh->edata, elayers, mesh->totedge, CD_MASK_MESH.emask, &mesh->id); - /* fdata is really a dummy - written so slots align */ - CustomData_blend_write( - writer, &mesh->fdata, flayers, mesh->totface, CD_MASK_MESH.fmask, &mesh->id); - CustomData_blend_write( - writer, &mesh->ldata, llayers, mesh->totloop, CD_MASK_MESH.lmask, &mesh->id); - CustomData_blend_write( - writer, &mesh->pdata, players, mesh->totpoly, CD_MASK_MESH.pmask, &mesh->id); - - /* Free temporary data */ - - /* Free custom-data layers, when not assigned a buffer value. */ -#define CD_LAYERS_FREE(id) \ - if (id && id != id##_buff) { \ - MEM_freeN(id); \ - } \ - ((void)0) - - CD_LAYERS_FREE(vlayers); - CD_LAYERS_FREE(elayers); - // CD_LAYER_FREE(flayers); /* Never allocated. */ - CD_LAYERS_FREE(llayers); - CD_LAYERS_FREE(players); - -#undef CD_LAYERS_FREE -} - -static void mesh_blend_read_data(BlendDataReader *reader, ID *id) -{ - Mesh *mesh = (Mesh *)id; - BLO_read_pointer_array(reader, (void **)&mesh->mat); - - BLO_read_data_address(reader, &mesh->mvert); - BLO_read_data_address(reader, &mesh->medge); - BLO_read_data_address(reader, &mesh->mface); - BLO_read_data_address(reader, &mesh->mloop); - BLO_read_data_address(reader, &mesh->mpoly); - BLO_read_data_address(reader, &mesh->tface); - BLO_read_data_address(reader, &mesh->mtface); - BLO_read_data_address(reader, &mesh->mcol); - BLO_read_data_address(reader, &mesh->dvert); - BLO_read_data_address(reader, &mesh->mloopcol); - BLO_read_data_address(reader, &mesh->mloopuv); - BLO_read_data_address(reader, &mesh->mselect); - - /* animdata */ - BLO_read_data_address(reader, &mesh->adt); - BKE_animdata_blend_read_data(reader, mesh->adt); - - /* Normally BKE_defvert_blend_read should be called in CustomData_blend_read, - * but for backwards compatibility in do_versions to work we do it here. */ - BKE_defvert_blend_read(reader, mesh->totvert, mesh->dvert); - BLO_read_list(reader, &mesh->vertex_group_names); - - CustomData_blend_read(reader, &mesh->vdata, mesh->totvert); - CustomData_blend_read(reader, &mesh->edata, mesh->totedge); - CustomData_blend_read(reader, &mesh->fdata, mesh->totface); - CustomData_blend_read(reader, &mesh->ldata, mesh->totloop); - CustomData_blend_read(reader, &mesh->pdata, mesh->totpoly); - - mesh->texflag &= ~ME_AUTOSPACE_EVALUATED; - mesh->edit_mesh = NULL; - BKE_mesh_runtime_reset(mesh); - - /* happens with old files */ - if (mesh->mselect == NULL) { - mesh->totselect = 0; - } - - if (BLO_read_requires_endian_switch(reader) && mesh->tface) { - TFace *tf = mesh->tface; - for (int i = 0; i < mesh->totface; i++, tf++) { - BLI_endian_switch_uint32_array(tf->col, 4); - } - } -} - -static void mesh_blend_read_lib(BlendLibReader *reader, ID *id) -{ - Mesh *me = (Mesh *)id; - /* this check added for python created meshes */ - if (me->mat) { - for (int i = 0; i < me->totcol; i++) { - BLO_read_id_address(reader, me->id.lib, &me->mat[i]); - } - } - else { - me->totcol = 0; - } - - BLO_read_id_address(reader, me->id.lib, &me->ipo); // XXX: deprecated: old anim sys - BLO_read_id_address(reader, me->id.lib, &me->key); - BLO_read_id_address(reader, me->id.lib, &me->texcomesh); -} - -static void mesh_read_expand(BlendExpander *expander, ID *id) -{ - Mesh *me = (Mesh *)id; - for (int a = 0; a < me->totcol; a++) { - BLO_expand(expander, me->mat[a]); - } - - BLO_expand(expander, me->key); - BLO_expand(expander, me->texcomesh); -} - -IDTypeInfo IDType_ID_ME = { - .id_code = ID_ME, - .id_filter = FILTER_ID_ME, - .main_listbase_index = INDEX_ID_ME, - .struct_size = sizeof(Mesh), - .name = "Mesh", - .name_plural = "meshes", - .translation_context = BLT_I18NCONTEXT_ID_MESH, - .flags = IDTYPE_FLAGS_APPEND_IS_REUSABLE, - - .init_data = mesh_init_data, - .copy_data = mesh_copy_data, - .free_data = mesh_free_data, - .make_local = NULL, - .foreach_id = mesh_foreach_id, - .foreach_cache = NULL, - .owner_get = NULL, - - .blend_write = mesh_blend_write, - .blend_read_data = mesh_blend_read_data, - .blend_read_lib = mesh_blend_read_lib, - .blend_read_expand = mesh_read_expand, - - .blend_read_undo_preserve = NULL, - - .lib_override_apply_post = NULL, -}; - -enum { - MESHCMP_DVERT_WEIGHTMISMATCH = 1, - MESHCMP_DVERT_GROUPMISMATCH, - MESHCMP_DVERT_TOTGROUPMISMATCH, - MESHCMP_LOOPCOLMISMATCH, - MESHCMP_LOOPUVMISMATCH, - MESHCMP_LOOPMISMATCH, - MESHCMP_POLYVERTMISMATCH, - MESHCMP_POLYMISMATCH, - MESHCMP_EDGEUNKNOWN, - MESHCMP_VERTCOMISMATCH, - MESHCMP_CDLAYERS_MISMATCH, - MESHCMP_ATTRIBUTE_VALUE_MISMATCH, -}; - -static const char *cmpcode_to_str(int code) -{ - switch (code) { - case MESHCMP_DVERT_WEIGHTMISMATCH: - return "Vertex Weight Mismatch"; - case MESHCMP_DVERT_GROUPMISMATCH: - return "Vertex Group Mismatch"; - case MESHCMP_DVERT_TOTGROUPMISMATCH: - return "Vertex Doesn't Belong To Same Number Of Groups"; - case MESHCMP_LOOPCOLMISMATCH: - return "Vertex Color Mismatch"; - case MESHCMP_LOOPUVMISMATCH: - return "UV Mismatch"; - case MESHCMP_LOOPMISMATCH: - return "Loop Mismatch"; - case MESHCMP_POLYVERTMISMATCH: - return "Loop Vert Mismatch In Poly Test"; - case MESHCMP_POLYMISMATCH: - return "Loop Vert Mismatch"; - case MESHCMP_EDGEUNKNOWN: - return "Edge Mismatch"; - case MESHCMP_VERTCOMISMATCH: - return "Vertex Coordinate Mismatch"; - case MESHCMP_CDLAYERS_MISMATCH: - return "CustomData Layer Count Mismatch"; - case MESHCMP_ATTRIBUTE_VALUE_MISMATCH: - return "Attribute Value Mismatch"; - default: - return "Mesh Comparison Code Unknown"; - } -} - -/** Thresh is threshold for comparing vertices, UV's, vertex colors, weights, etc. */ -static int customdata_compare( - CustomData *c1, CustomData *c2, const int total_length, Mesh *m1, Mesh *m2, const float thresh) -{ - const float thresh_sq = thresh * thresh; - CustomDataLayer *l1, *l2; - int layer_count1 = 0, layer_count2 = 0, j; - const uint64_t cd_mask_non_generic = CD_MASK_MVERT | CD_MASK_MEDGE | CD_MASK_MPOLY | - CD_MASK_MLOOPUV | CD_MASK_MLOOPCOL | CD_MASK_MDEFORMVERT; - const uint64_t cd_mask_all_attr = CD_MASK_PROP_ALL | cd_mask_non_generic; - - for (int i = 0; i < c1->totlayer; i++) { - if (CD_TYPE_AS_MASK(c1->layers[i].type) & cd_mask_all_attr) { - layer_count1++; - } - } - - for (int i = 0; i < c2->totlayer; i++) { - if (CD_TYPE_AS_MASK(c2->layers[i].type) & cd_mask_all_attr) { - layer_count2++; - } - } - - if (layer_count1 != layer_count2) { - return MESHCMP_CDLAYERS_MISMATCH; - } - - l1 = c1->layers; - l2 = c2->layers; - - for (int i1 = 0; i1 < c1->totlayer; i1++) { - l1 = c1->layers + i1; - for (int i2 = 0; i2 < c2->totlayer; i2++) { - l2 = c2->layers + i2; - if (l1->type != l2->type || !STREQ(l1->name, l2->name)) { - continue; - } - /* At this point `l1` and `l2` have the same name and type, so they should be compared. */ - - switch (l1->type) { - - case CD_MVERT: { - MVert *v1 = l1->data; - MVert *v2 = l2->data; - int vtot = m1->totvert; - - for (j = 0; j < vtot; j++, v1++, v2++) { - for (int k = 0; k < 3; k++) { - if (compare_threshold_relative(v1->co[k], v2->co[k], thresh)) { - return MESHCMP_VERTCOMISMATCH; - } - } - /* I don't care about normals, let's just do coordinates. */ - } - break; - } - - /* We're order-agnostic for edges here. */ - case CD_MEDGE: { - MEdge *e1 = l1->data; - MEdge *e2 = l2->data; - int etot = m1->totedge; - EdgeHash *eh = BLI_edgehash_new_ex(__func__, etot); - - for (j = 0; j < etot; j++, e1++) { - BLI_edgehash_insert(eh, e1->v1, e1->v2, e1); - } - - for (j = 0; j < etot; j++, e2++) { - if (!BLI_edgehash_lookup(eh, e2->v1, e2->v2)) { - return MESHCMP_EDGEUNKNOWN; - } - } - BLI_edgehash_free(eh, NULL); - break; - } - case CD_MPOLY: { - MPoly *p1 = l1->data; - MPoly *p2 = l2->data; - int ptot = m1->totpoly; - - for (j = 0; j < ptot; j++, p1++, p2++) { - MLoop *lp1, *lp2; - int k; - - if (p1->totloop != p2->totloop) { - return MESHCMP_POLYMISMATCH; - } - - lp1 = m1->mloop + p1->loopstart; - lp2 = m2->mloop + p2->loopstart; - - for (k = 0; k < p1->totloop; k++, lp1++, lp2++) { - if (lp1->v != lp2->v) { - return MESHCMP_POLYVERTMISMATCH; - } - } - } - break; - } - case CD_MLOOP: { - MLoop *lp1 = l1->data; - MLoop *lp2 = l2->data; - int ltot = m1->totloop; - - for (j = 0; j < ltot; j++, lp1++, lp2++) { - if (lp1->v != lp2->v) { - return MESHCMP_LOOPMISMATCH; - } - } - break; - } - case CD_MLOOPUV: { - MLoopUV *lp1 = l1->data; - MLoopUV *lp2 = l2->data; - int ltot = m1->totloop; - - for (j = 0; j < ltot; j++, lp1++, lp2++) { - if (len_squared_v2v2(lp1->uv, lp2->uv) > thresh_sq) { - return MESHCMP_LOOPUVMISMATCH; - } - } - break; - } - case CD_MLOOPCOL: { - MLoopCol *lp1 = l1->data; - MLoopCol *lp2 = l2->data; - int ltot = m1->totloop; - - for (j = 0; j < ltot; j++, lp1++, lp2++) { - if (lp1->r != lp2->r || lp1->g != lp2->g || lp1->b != lp2->b || lp1->a != lp2->a) { - return MESHCMP_LOOPCOLMISMATCH; - } - } - break; - } - case CD_MDEFORMVERT: { - MDeformVert *dv1 = l1->data; - MDeformVert *dv2 = l2->data; - int dvtot = m1->totvert; - - for (j = 0; j < dvtot; j++, dv1++, dv2++) { - int k; - MDeformWeight *dw1 = dv1->dw, *dw2 = dv2->dw; - - if (dv1->totweight != dv2->totweight) { - return MESHCMP_DVERT_TOTGROUPMISMATCH; - } - - for (k = 0; k < dv1->totweight; k++, dw1++, dw2++) { - if (dw1->def_nr != dw2->def_nr) { - return MESHCMP_DVERT_GROUPMISMATCH; - } - if (fabsf(dw1->weight - dw2->weight) > thresh) { - return MESHCMP_DVERT_WEIGHTMISMATCH; - } - } - } - break; - } - case CD_PROP_FLOAT: { - const float *l1_data = l1->data; - const float *l2_data = l2->data; - - for (int i = 0; i < total_length; i++) { - if (compare_threshold_relative(l1_data[i], l2_data[i], thresh)) { - return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; - } - } - break; - } - case CD_PROP_FLOAT2: { - const float(*l1_data)[2] = l1->data; - const float(*l2_data)[2] = l2->data; - - for (int i = 0; i < total_length; i++) { - if (compare_threshold_relative(l1_data[i][0], l2_data[i][0], thresh)) { - return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; - } - if (compare_threshold_relative(l1_data[i][1], l2_data[i][1], thresh)) { - return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; - } - } - break; - } - case CD_PROP_FLOAT3: { - const float(*l1_data)[3] = l1->data; - const float(*l2_data)[3] = l2->data; - - for (int i = 0; i < total_length; i++) { - if (compare_threshold_relative(l1_data[i][0], l2_data[i][0], thresh)) { - return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; - } - if (compare_threshold_relative(l1_data[i][1], l2_data[i][1], thresh)) { - return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; - } - if (compare_threshold_relative(l1_data[i][2], l2_data[i][2], thresh)) { - return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; - } - } - break; - } - case CD_PROP_INT32: { - const int *l1_data = l1->data; - const int *l2_data = l2->data; - - for (int i = 0; i < total_length; i++) { - if (l1_data[i] != l2_data[i]) { - return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; - } - } - break; - } - case CD_PROP_BOOL: { - const bool *l1_data = l1->data; - const bool *l2_data = l2->data; - - for (int i = 0; i < total_length; i++) { - if (l1_data[i] != l2_data[i]) { - return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; - } - } - break; - } - case CD_PROP_COLOR: { - const MPropCol *l1_data = l1->data; - const MPropCol *l2_data = l2->data; - - for (int i = 0; i < total_length; i++) { - for (j = 0; j < 4; j++) { - if (compare_threshold_relative(l1_data[i].color[j], l2_data[i].color[j], thresh)) { - return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; - } - } - } - break; - } - default: { - break; - } - } - } - } - - return 0; -} - -/** - * Used for unit testing; compares two meshes, checking only - * differences we care about. should be usable with leaf's - * testing framework I get RNA work done, will use hackish - * testing code for now. - */ -const char *BKE_mesh_cmp(Mesh *me1, Mesh *me2, float thresh) -{ - int c; - - if (!me1 || !me2) { - return "Requires two input meshes"; - } - - if (me1->totvert != me2->totvert) { - return "Number of verts don't match"; - } - - if (me1->totedge != me2->totedge) { - return "Number of edges don't match"; - } - - if (me1->totpoly != me2->totpoly) { - return "Number of faces don't match"; - } - - if (me1->totloop != me2->totloop) { - return "Number of loops don't match"; - } - - if ((c = customdata_compare(&me1->vdata, &me2->vdata, me1->totvert, me1, me2, thresh))) { - return cmpcode_to_str(c); - } - - if ((c = customdata_compare(&me1->edata, &me2->edata, me1->totedge, me1, me2, thresh))) { - return cmpcode_to_str(c); - } - - if ((c = customdata_compare(&me1->ldata, &me2->ldata, me1->totloop, me1, me2, thresh))) { - return cmpcode_to_str(c); - } - - if ((c = customdata_compare(&me1->pdata, &me2->pdata, me1->totpoly, me1, me2, thresh))) { - return cmpcode_to_str(c); - } - - return NULL; -} - -static void mesh_ensure_tessellation_customdata(Mesh *me) -{ - if (UNLIKELY((me->totface != 0) && (me->totpoly == 0))) { - /* Pass, otherwise this function clears 'mface' before - * versioning 'mface -> mpoly' code kicks in T30583. - * - * Callers could also check but safer to do here - campbell */ - } - else { - const int tottex_original = CustomData_number_of_layers(&me->ldata, CD_MLOOPUV); - const int totcol_original = CustomData_number_of_layers(&me->ldata, CD_MLOOPCOL); - - const int tottex_tessface = CustomData_number_of_layers(&me->fdata, CD_MTFACE); - const int totcol_tessface = CustomData_number_of_layers(&me->fdata, CD_MCOL); - - if (tottex_tessface != tottex_original || totcol_tessface != totcol_original) { - BKE_mesh_tessface_clear(me); - - CustomData_from_bmeshpoly(&me->fdata, &me->ldata, me->totface); - - /* TODO: add some `--debug-mesh` option. */ - if (G.debug & G_DEBUG) { - /* NOTE(campbell): this warning may be un-called for if we are initializing the mesh for - * the first time from #BMesh, rather than giving a warning about this we could be smarter - * and check if there was any data to begin with, for now just print the warning with - * some info to help troubleshoot what's going on. */ - printf( - "%s: warning! Tessellation uvs or vcol data got out of sync, " - "had to reset!\n CD_MTFACE: %d != CD_MLOOPUV: %d || CD_MCOL: %d != CD_MLOOPCOL: " - "%d\n", - __func__, - tottex_tessface, - tottex_original, - totcol_tessface, - totcol_original); - } - } - } -} - -void BKE_mesh_ensure_skin_customdata(Mesh *me) -{ - BMesh *bm = me->edit_mesh ? me->edit_mesh->bm : NULL; - MVertSkin *vs; - - if (bm) { - if (!CustomData_has_layer(&bm->vdata, CD_MVERT_SKIN)) { - BMVert *v; - BMIter iter; - - BM_data_layer_add(bm, &bm->vdata, CD_MVERT_SKIN); - - /* Mark an arbitrary vertex as root */ - BM_ITER_MESH (v, &iter, bm, BM_VERTS_OF_MESH) { - vs = CustomData_bmesh_get(&bm->vdata, v->head.data, CD_MVERT_SKIN); - vs->flag |= MVERT_SKIN_ROOT; - break; - } - } - } - else { - if (!CustomData_has_layer(&me->vdata, CD_MVERT_SKIN)) { - vs = CustomData_add_layer(&me->vdata, CD_MVERT_SKIN, CD_DEFAULT, NULL, me->totvert); - - /* Mark an arbitrary vertex as root */ - if (vs) { - vs->flag |= MVERT_SKIN_ROOT; - } - } - } -} - -bool BKE_mesh_ensure_facemap_customdata(struct Mesh *me) -{ - BMesh *bm = me->edit_mesh ? me->edit_mesh->bm : NULL; - bool changed = false; - if (bm) { - if (!CustomData_has_layer(&bm->pdata, CD_FACEMAP)) { - BM_data_layer_add(bm, &bm->pdata, CD_FACEMAP); - changed = true; - } - } - else { - if (!CustomData_has_layer(&me->pdata, CD_FACEMAP)) { - CustomData_add_layer(&me->pdata, CD_FACEMAP, CD_DEFAULT, NULL, me->totpoly); - changed = true; - } - } - return changed; -} - -bool BKE_mesh_clear_facemap_customdata(struct Mesh *me) -{ - BMesh *bm = me->edit_mesh ? me->edit_mesh->bm : NULL; - bool changed = false; - if (bm) { - if (CustomData_has_layer(&bm->pdata, CD_FACEMAP)) { - BM_data_layer_free(bm, &bm->pdata, CD_FACEMAP); - changed = true; - } - } - else { - if (CustomData_has_layer(&me->pdata, CD_FACEMAP)) { - CustomData_free_layers(&me->pdata, CD_FACEMAP, me->totpoly); - changed = true; - } - } - return changed; -} - -/** - * This ensures grouped customdata (e.g. mtexpoly and mloopuv and mtface, or - * mloopcol and mcol) have the same relative active/render/clone/mask indices. - * - * NOTE(campbell): that for undo mesh data we want to skip 'ensure_tess_cd' call since - * we don't want to store memory for tessface when its only used for older - * Versions of the mesh. - */ -static void mesh_update_linked_customdata(Mesh *me, const bool do_ensure_tess_cd) -{ - if (do_ensure_tess_cd) { - mesh_ensure_tessellation_customdata(me); - } - - CustomData_bmesh_update_active_layers(&me->fdata, &me->ldata); -} - -void BKE_mesh_update_customdata_pointers(Mesh *me, const bool do_ensure_tess_cd) -{ - mesh_update_linked_customdata(me, do_ensure_tess_cd); - - me->mvert = CustomData_get_layer(&me->vdata, CD_MVERT); - me->dvert = CustomData_get_layer(&me->vdata, CD_MDEFORMVERT); - - me->medge = CustomData_get_layer(&me->edata, CD_MEDGE); - - me->mface = CustomData_get_layer(&me->fdata, CD_MFACE); - me->mcol = CustomData_get_layer(&me->fdata, CD_MCOL); - me->mtface = CustomData_get_layer(&me->fdata, CD_MTFACE); - - me->mpoly = CustomData_get_layer(&me->pdata, CD_MPOLY); - me->mloop = CustomData_get_layer(&me->ldata, CD_MLOOP); - - me->mloopcol = CustomData_get_layer(&me->ldata, CD_MLOOPCOL); - me->mloopuv = CustomData_get_layer(&me->ldata, CD_MLOOPUV); -} - -bool BKE_mesh_has_custom_loop_normals(Mesh *me) -{ - if (me->edit_mesh) { - return CustomData_has_layer(&me->edit_mesh->bm->ldata, CD_CUSTOMLOOPNORMAL); - } - - return CustomData_has_layer(&me->ldata, CD_CUSTOMLOOPNORMAL); -} - -/** - * Free (or release) any data used by this mesh (does not free the mesh itself). - * Only use for undo, in most cases `BKE_id_free(NULL, me)` should be used. - */ -void BKE_mesh_free_data_for_undo(Mesh *me) -{ - mesh_free_data(&me->id); -} - -/** - * \note on data that this function intentionally doesn't free: - * - * - Materials and shape keys are not freed here (#Mesh.mat & #Mesh.key). - * As freeing shape keys requires tagging the depsgraph for updated relations, - * which is expensive. - * Material slots should be kept in sync with the object. - * - * - Edit-Mesh (#Mesh.edit_mesh) - * Since edit-mesh is tied to the objects mode, - * which crashes when called in edit-mode, see: T90972. - */ -static void mesh_clear_geometry(Mesh *mesh) -{ - CustomData_free(&mesh->vdata, mesh->totvert); - CustomData_free(&mesh->edata, mesh->totedge); - CustomData_free(&mesh->fdata, mesh->totface); - CustomData_free(&mesh->ldata, mesh->totloop); - CustomData_free(&mesh->pdata, mesh->totpoly); - - MEM_SAFE_FREE(mesh->mselect); - - mesh->totvert = 0; - mesh->totedge = 0; - mesh->totface = 0; - mesh->totloop = 0; - mesh->totpoly = 0; - mesh->act_face = -1; - mesh->totselect = 0; - - BKE_mesh_update_customdata_pointers(mesh, false); -} - -void BKE_mesh_clear_geometry(Mesh *mesh) -{ - BKE_animdata_free(&mesh->id, false); - BKE_mesh_runtime_clear_cache(mesh); - mesh_clear_geometry(mesh); -} - -static void mesh_tessface_clear_intern(Mesh *mesh, int free_customdata) -{ - if (free_customdata) { - CustomData_free(&mesh->fdata, mesh->totface); - } - else { - CustomData_reset(&mesh->fdata); - } - - mesh->mface = NULL; - mesh->mtface = NULL; - mesh->mcol = NULL; - mesh->totface = 0; -} - -Mesh *BKE_mesh_add(Main *bmain, const char *name) -{ - Mesh *me = BKE_id_new(bmain, ID_ME, name); - - return me; -} - -/* Custom data layer functions; those assume that totXXX are set correctly. */ -static void mesh_ensure_cdlayers_primary(Mesh *mesh, bool do_tessface) -{ - if (!CustomData_get_layer(&mesh->vdata, CD_MVERT)) { - CustomData_add_layer(&mesh->vdata, CD_MVERT, CD_CALLOC, NULL, mesh->totvert); - } - if (!CustomData_get_layer(&mesh->edata, CD_MEDGE)) { - CustomData_add_layer(&mesh->edata, CD_MEDGE, CD_CALLOC, NULL, mesh->totedge); - } - if (!CustomData_get_layer(&mesh->ldata, CD_MLOOP)) { - CustomData_add_layer(&mesh->ldata, CD_MLOOP, CD_CALLOC, NULL, mesh->totloop); - } - if (!CustomData_get_layer(&mesh->pdata, CD_MPOLY)) { - CustomData_add_layer(&mesh->pdata, CD_MPOLY, CD_CALLOC, NULL, mesh->totpoly); - } - - if (do_tessface && !CustomData_get_layer(&mesh->fdata, CD_MFACE)) { - CustomData_add_layer(&mesh->fdata, CD_MFACE, CD_CALLOC, NULL, mesh->totface); - } -} - -Mesh *BKE_mesh_new_nomain( - int verts_len, int edges_len, int tessface_len, int loops_len, int polys_len) -{ - Mesh *mesh = BKE_libblock_alloc( - NULL, ID_ME, BKE_idtype_idcode_to_name(ID_ME), LIB_ID_CREATE_LOCALIZE); - BKE_libblock_init_empty(&mesh->id); - - /* Don't use #CustomData_reset because we don't want to touch custom-data. */ - copy_vn_i(mesh->vdata.typemap, CD_NUMTYPES, -1); - copy_vn_i(mesh->edata.typemap, CD_NUMTYPES, -1); - copy_vn_i(mesh->fdata.typemap, CD_NUMTYPES, -1); - copy_vn_i(mesh->ldata.typemap, CD_NUMTYPES, -1); - copy_vn_i(mesh->pdata.typemap, CD_NUMTYPES, -1); - - mesh->totvert = verts_len; - mesh->totedge = edges_len; - mesh->totface = tessface_len; - mesh->totloop = loops_len; - mesh->totpoly = polys_len; - - mesh_ensure_cdlayers_primary(mesh, true); - BKE_mesh_update_customdata_pointers(mesh, false); - - return mesh; -} - -/** - * Copy user editable settings that we want to preserve - * when a new mesh is based on an existing mesh. - */ -void BKE_mesh_copy_parameters(Mesh *me_dst, const Mesh *me_src) -{ - /* Copy general settings. */ - me_dst->editflag = me_src->editflag; - me_dst->flag = me_src->flag; - me_dst->smoothresh = me_src->smoothresh; - me_dst->remesh_voxel_size = me_src->remesh_voxel_size; - me_dst->remesh_voxel_adaptivity = me_src->remesh_voxel_adaptivity; - me_dst->remesh_mode = me_src->remesh_mode; - me_dst->symmetry = me_src->symmetry; - - me_dst->face_sets_color_seed = me_src->face_sets_color_seed; - me_dst->face_sets_color_default = me_src->face_sets_color_default; - - /* Copy texture space. */ - me_dst->texflag = me_src->texflag; - copy_v3_v3(me_dst->loc, me_src->loc); - copy_v3_v3(me_dst->size, me_src->size); - - me_dst->vertex_group_active_index = me_src->vertex_group_active_index; -} - -/** - * A version of #BKE_mesh_copy_parameters that is intended for evaluated output - * (the modifier stack for example). - * - * \warning User counts are not handled for ID's. - */ -void BKE_mesh_copy_parameters_for_eval(Mesh *me_dst, const Mesh *me_src) -{ - /* User counts aren't handled, don't copy into a mesh from #G_MAIN. */ - BLI_assert(me_dst->id.tag & (LIB_TAG_NO_MAIN | LIB_TAG_COPIED_ON_WRITE)); - - BKE_mesh_copy_parameters(me_dst, me_src); - - /* Copy vertex group names. */ - BLI_assert(BLI_listbase_is_empty(&me_dst->vertex_group_names)); - BKE_defgroup_copy_list(&me_dst->vertex_group_names, &me_src->vertex_group_names); - - /* Copy materials. */ - if (me_dst->mat != NULL) { - MEM_freeN(me_dst->mat); - } - me_dst->mat = MEM_dupallocN(me_src->mat); - me_dst->totcol = me_src->totcol; -} - -Mesh *BKE_mesh_new_nomain_from_template_ex(const Mesh *me_src, - int verts_len, - int edges_len, - int tessface_len, - int loops_len, - int polys_len, - CustomData_MeshMasks mask) -{ - /* Only do tessface if we are creating tessfaces or copying from mesh with only tessfaces. */ - const bool do_tessface = (tessface_len || ((me_src->totface != 0) && (me_src->totpoly == 0))); - - Mesh *me_dst = BKE_id_new_nomain(ID_ME, NULL); - - me_dst->mselect = MEM_dupallocN(me_src->mselect); - - me_dst->totvert = verts_len; - me_dst->totedge = edges_len; - me_dst->totface = tessface_len; - me_dst->totloop = loops_len; - me_dst->totpoly = polys_len; - - me_dst->cd_flag = me_src->cd_flag; - BKE_mesh_copy_parameters_for_eval(me_dst, me_src); - - CustomData_copy(&me_src->vdata, &me_dst->vdata, mask.vmask, CD_CALLOC, verts_len); - CustomData_copy(&me_src->edata, &me_dst->edata, mask.emask, CD_CALLOC, edges_len); - CustomData_copy(&me_src->ldata, &me_dst->ldata, mask.lmask, CD_CALLOC, loops_len); - CustomData_copy(&me_src->pdata, &me_dst->pdata, mask.pmask, CD_CALLOC, polys_len); - if (do_tessface) { - CustomData_copy(&me_src->fdata, &me_dst->fdata, mask.fmask, CD_CALLOC, tessface_len); - } - else { - mesh_tessface_clear_intern(me_dst, false); - } - - /* The destination mesh should at least have valid primary CD layers, - * even in cases where the source mesh does not. */ - mesh_ensure_cdlayers_primary(me_dst, do_tessface); - BKE_mesh_update_customdata_pointers(me_dst, false); - - return me_dst; -} - -Mesh *BKE_mesh_new_nomain_from_template(const Mesh *me_src, - int verts_len, - int edges_len, - int tessface_len, - int loops_len, - int polys_len) -{ - return BKE_mesh_new_nomain_from_template_ex( - me_src, verts_len, edges_len, tessface_len, loops_len, polys_len, CD_MASK_EVERYTHING); -} - -void BKE_mesh_eval_delete(struct Mesh *mesh_eval) -{ - /* Evaluated mesh may point to edit mesh, but never owns it. */ - mesh_eval->edit_mesh = NULL; - mesh_free_data(&mesh_eval->id); - BKE_libblock_free_data(&mesh_eval->id, false); - MEM_freeN(mesh_eval); -} - -Mesh *BKE_mesh_copy_for_eval(const Mesh *source, bool reference) -{ - int flags = LIB_ID_COPY_LOCALIZE; - - if (reference) { - flags |= LIB_ID_COPY_CD_REFERENCE; - } - - Mesh *result = (Mesh *)BKE_id_copy_ex(NULL, &source->id, NULL, flags); - return result; -} - -BMesh *BKE_mesh_to_bmesh_ex(const Mesh *me, - const struct BMeshCreateParams *create_params, - const struct BMeshFromMeshParams *convert_params) -{ - const BMAllocTemplate allocsize = BMALLOC_TEMPLATE_FROM_ME(me); - - BMesh *bm = BM_mesh_create(&allocsize, create_params); - BM_mesh_bm_from_me(bm, me, convert_params); - - return bm; -} - -BMesh *BKE_mesh_to_bmesh(Mesh *me, - Object *ob, - const bool add_key_index, - const struct BMeshCreateParams *params) -{ - return BKE_mesh_to_bmesh_ex(me, - params, - &(struct BMeshFromMeshParams){ - .calc_face_normal = false, - .add_key_index = add_key_index, - .use_shapekey = true, - .active_shapekey = ob->shapenr, - }); -} - -Mesh *BKE_mesh_from_bmesh_nomain(BMesh *bm, - const struct BMeshToMeshParams *params, - const Mesh *me_settings) -{ - BLI_assert(params->calc_object_remap == false); - Mesh *mesh = BKE_id_new_nomain(ID_ME, NULL); - BM_mesh_bm_to_me(NULL, bm, mesh, params); - BKE_mesh_copy_parameters_for_eval(mesh, me_settings); - return mesh; -} - -Mesh *BKE_mesh_from_bmesh_for_eval_nomain(BMesh *bm, - const CustomData_MeshMasks *cd_mask_extra, - const Mesh *me_settings) -{ - Mesh *mesh = BKE_id_new_nomain(ID_ME, NULL); - BM_mesh_bm_to_me_for_eval(bm, mesh, cd_mask_extra); - BKE_mesh_copy_parameters_for_eval(mesh, me_settings); - return mesh; -} - -BoundBox *BKE_mesh_boundbox_get(Object *ob) -{ - /* This is Object-level data access, - * DO NOT touch to Mesh's bb, would be totally thread-unsafe. */ - if (ob->runtime.bb == NULL || ob->runtime.bb->flag & BOUNDBOX_DIRTY) { - Mesh *me = ob->data; - float min[3], max[3]; - - INIT_MINMAX(min, max); - if (!BKE_mesh_wrapper_minmax(me, min, max)) { - min[0] = min[1] = min[2] = -1.0f; - max[0] = max[1] = max[2] = 1.0f; - } - - if (ob->runtime.bb == NULL) { - ob->runtime.bb = MEM_mallocN(sizeof(*ob->runtime.bb), __func__); - } - BKE_boundbox_init_from_minmax(ob->runtime.bb, min, max); - ob->runtime.bb->flag &= ~BOUNDBOX_DIRTY; - } - - return ob->runtime.bb; -} - -void BKE_mesh_texspace_calc(Mesh *me) -{ - if (me->texflag & ME_AUTOSPACE) { - float min[3], max[3]; - - INIT_MINMAX(min, max); - if (!BKE_mesh_wrapper_minmax(me, min, max)) { - min[0] = min[1] = min[2] = -1.0f; - max[0] = max[1] = max[2] = 1.0f; - } - - float loc[3], size[3]; - mid_v3_v3v3(loc, min, max); - - size[0] = (max[0] - min[0]) / 2.0f; - size[1] = (max[1] - min[1]) / 2.0f; - size[2] = (max[2] - min[2]) / 2.0f; - - for (int a = 0; a < 3; a++) { - if (size[a] == 0.0f) { - size[a] = 1.0f; - } - else if (size[a] > 0.0f && size[a] < 0.00001f) { - size[a] = 0.00001f; - } - else if (size[a] < 0.0f && size[a] > -0.00001f) { - size[a] = -0.00001f; - } - } - - copy_v3_v3(me->loc, loc); - copy_v3_v3(me->size, size); - - me->texflag |= ME_AUTOSPACE_EVALUATED; - } -} - -void BKE_mesh_texspace_ensure(Mesh *me) -{ - if ((me->texflag & ME_AUTOSPACE) && !(me->texflag & ME_AUTOSPACE_EVALUATED)) { - BKE_mesh_texspace_calc(me); - } -} - -void BKE_mesh_texspace_get(Mesh *me, float r_loc[3], float r_size[3]) -{ - BKE_mesh_texspace_ensure(me); - - if (r_loc) { - copy_v3_v3(r_loc, me->loc); - } - if (r_size) { - copy_v3_v3(r_size, me->size); - } -} - -void BKE_mesh_texspace_get_reference(Mesh *me, short **r_texflag, float **r_loc, float **r_size) -{ - BKE_mesh_texspace_ensure(me); - - if (r_texflag != NULL) { - *r_texflag = &me->texflag; - } - if (r_loc != NULL) { - *r_loc = me->loc; - } - if (r_size != NULL) { - *r_size = me->size; - } -} - -void BKE_mesh_texspace_copy_from_object(Mesh *me, Object *ob) -{ - float *texloc, *texsize; - short *texflag; - - if (BKE_object_obdata_texspace_get(ob, &texflag, &texloc, &texsize)) { - me->texflag = *texflag; - copy_v3_v3(me->loc, texloc); - copy_v3_v3(me->size, texsize); - } -} - -float (*BKE_mesh_orco_verts_get(Object *ob))[3] -{ - Mesh *me = ob->data; - Mesh *tme = me->texcomesh ? me->texcomesh : me; - - /* Get appropriate vertex coordinates */ - float(*vcos)[3] = MEM_calloc_arrayN(me->totvert, sizeof(*vcos), "orco mesh"); - MVert *mvert = tme->mvert; - int totvert = min_ii(tme->totvert, me->totvert); - - for (int a = 0; a < totvert; a++, mvert++) { - copy_v3_v3(vcos[a], mvert->co); - } - - return vcos; -} - -void BKE_mesh_orco_verts_transform(Mesh *me, float (*orco)[3], int totvert, int invert) -{ - float loc[3], size[3]; - - BKE_mesh_texspace_get(me->texcomesh ? me->texcomesh : me, loc, size); - - if (invert) { - for (int a = 0; a < totvert; a++) { - float *co = orco[a]; - madd_v3_v3v3v3(co, loc, co, size); - } - } - else { - for (int a = 0; a < totvert; a++) { - float *co = orco[a]; - co[0] = (co[0] - loc[0]) / size[0]; - co[1] = (co[1] - loc[1]) / size[1]; - co[2] = (co[2] - loc[2]) / size[2]; - } - } -} - -/** - * Rotates the vertices of a face in case v[2] or v[3] (vertex index) is = 0. - * this is necessary to make the if #MFace.v4 check for quads work. - */ -int BKE_mesh_mface_index_validate(MFace *mface, CustomData *fdata, int mfindex, int nr) -{ - /* first test if the face is legal */ - if ((mface->v3 || nr == 4) && mface->v3 == mface->v4) { - mface->v4 = 0; - nr--; - } - if ((mface->v2 || mface->v4) && mface->v2 == mface->v3) { - mface->v3 = mface->v4; - mface->v4 = 0; - nr--; - } - if (mface->v1 == mface->v2) { - mface->v2 = mface->v3; - mface->v3 = mface->v4; - mface->v4 = 0; - nr--; - } - - /* Check corrupt cases, bow-tie geometry, - * can't handle these because edge data won't exist so just return 0. */ - if (nr == 3) { - if ( - /* real edges */ - mface->v1 == mface->v2 || mface->v2 == mface->v3 || mface->v3 == mface->v1) { - return 0; - } - } - else if (nr == 4) { - if ( - /* real edges */ - mface->v1 == mface->v2 || mface->v2 == mface->v3 || mface->v3 == mface->v4 || - mface->v4 == mface->v1 || - /* across the face */ - mface->v1 == mface->v3 || mface->v2 == mface->v4) { - return 0; - } - } - - /* prevent a zero at wrong index location */ - if (nr == 3) { - if (mface->v3 == 0) { - static int corner_indices[4] = {1, 2, 0, 3}; - - SWAP(uint, mface->v1, mface->v2); - SWAP(uint, mface->v2, mface->v3); - - if (fdata) { - CustomData_swap_corners(fdata, mfindex, corner_indices); - } - } - } - else if (nr == 4) { - if (mface->v3 == 0 || mface->v4 == 0) { - static int corner_indices[4] = {2, 3, 0, 1}; - - SWAP(uint, mface->v1, mface->v3); - SWAP(uint, mface->v2, mface->v4); - - if (fdata) { - CustomData_swap_corners(fdata, mfindex, corner_indices); - } - } - } - - return nr; -} - -Mesh *BKE_mesh_from_object(Object *ob) -{ - if (ob == NULL) { - return NULL; - } - if (ob->type == OB_MESH) { - return ob->data; - } - - return NULL; -} - -void BKE_mesh_assign_object(Main *bmain, Object *ob, Mesh *me) -{ - Mesh *old = NULL; - - if (ob == NULL) { - return; - } - - multires_force_sculpt_rebuild(ob); - - if (ob->type == OB_MESH) { - old = ob->data; - if (old) { - id_us_min(&old->id); - } - ob->data = me; - id_us_plus((ID *)me); - } - - BKE_object_materials_test(bmain, ob, (ID *)me); - - BKE_modifiers_test_object(ob); -} - -void BKE_mesh_material_index_remove(Mesh *me, short index) -{ - MPoly *mp; - MFace *mf; - int i; - - for (mp = me->mpoly, i = 0; i < me->totpoly; i++, mp++) { - if (mp->mat_nr && mp->mat_nr >= index) { - mp->mat_nr--; - } - } - - for (mf = me->mface, i = 0; i < me->totface; i++, mf++) { - if (mf->mat_nr && mf->mat_nr >= index) { - mf->mat_nr--; - } - } -} - -bool BKE_mesh_material_index_used(Mesh *me, short index) -{ - MPoly *mp; - MFace *mf; - int i; - - for (mp = me->mpoly, i = 0; i < me->totpoly; i++, mp++) { - if (mp->mat_nr == index) { - return true; - } - } - - for (mf = me->mface, i = 0; i < me->totface; i++, mf++) { - if (mf->mat_nr == index) { - return true; - } - } - - return false; -} - -void BKE_mesh_material_index_clear(Mesh *me) -{ - MPoly *mp; - MFace *mf; - int i; - - for (mp = me->mpoly, i = 0; i < me->totpoly; i++, mp++) { - mp->mat_nr = 0; - } - - for (mf = me->mface, i = 0; i < me->totface; i++, mf++) { - mf->mat_nr = 0; - } -} - -void BKE_mesh_material_remap(Mesh *me, const uint *remap, uint remap_len) -{ - const short remap_len_short = (short)remap_len; - -#define MAT_NR_REMAP(n) \ - if (n < remap_len_short) { \ - BLI_assert(n >= 0 && remap[n] < remap_len_short); \ - n = remap[n]; \ - } \ - ((void)0) - - if (me->edit_mesh) { - BMEditMesh *em = me->edit_mesh; - BMIter iter; - BMFace *efa; - - BM_ITER_MESH (efa, &iter, em->bm, BM_FACES_OF_MESH) { - MAT_NR_REMAP(efa->mat_nr); - } - } - else { - int i; - for (i = 0; i < me->totpoly; i++) { - MAT_NR_REMAP(me->mpoly[i].mat_nr); - } - } - -#undef MAT_NR_REMAP -} - -void BKE_mesh_smooth_flag_set(Mesh *me, const bool use_smooth) -{ - if (use_smooth) { - for (int i = 0; i < me->totpoly; i++) { - me->mpoly[i].flag |= ME_SMOOTH; - } - } - else { - for (int i = 0; i < me->totpoly; i++) { - me->mpoly[i].flag &= ~ME_SMOOTH; - } - } -} - -/** - * Find the index of the loop in 'poly' which references vertex, - * returns -1 if not found - */ -int poly_find_loop_from_vert(const MPoly *poly, const MLoop *loopstart, uint vert) -{ - for (int j = 0; j < poly->totloop; j++, loopstart++) { - if (loopstart->v == vert) { - return j; - } - } - - return -1; -} - -/** - * Fill \a r_adj with the loop indices in \a poly adjacent to the - * vertex. Returns the index of the loop matching vertex, or -1 if the - * vertex is not in \a poly - */ -int poly_get_adj_loops_from_vert(const MPoly *poly, const MLoop *mloop, uint vert, uint r_adj[2]) -{ - int corner = poly_find_loop_from_vert(poly, &mloop[poly->loopstart], vert); - - if (corner != -1) { - /* vertex was found */ - r_adj[0] = ME_POLY_LOOP_PREV(mloop, poly, corner)->v; - r_adj[1] = ME_POLY_LOOP_NEXT(mloop, poly, corner)->v; - } - - return corner; -} - -/** - * Return the index of the edge vert that is not equal to \a v. If - * neither edge vertex is equal to \a v, returns -1. - */ -int BKE_mesh_edge_other_vert(const MEdge *e, int v) -{ - if (e->v1 == v) { - return e->v2; - } - if (e->v2 == v) { - return e->v1; - } - - return -1; -} - -/** - * Sets each output array element to the edge index if it is a real edge, or -1. - */ -void BKE_mesh_looptri_get_real_edges(const Mesh *mesh, const MLoopTri *looptri, int r_edges[3]) -{ - for (int i = 2, i_next = 0; i_next < 3; i = i_next++) { - const MLoop *l1 = &mesh->mloop[looptri->tri[i]], *l2 = &mesh->mloop[looptri->tri[i_next]]; - const MEdge *e = &mesh->medge[l1->e]; - - bool is_real = (l1->v == e->v1 && l2->v == e->v2) || (l1->v == e->v2 && l2->v == e->v1); - - r_edges[i] = is_real ? l1->e : -1; - } -} - -/* basic vertex data functions */ -bool BKE_mesh_minmax(const Mesh *me, float r_min[3], float r_max[3]) -{ - int i = me->totvert; - MVert *mvert; - for (mvert = me->mvert; i--; mvert++) { - minmax_v3v3_v3(r_min, r_max, mvert->co); - } - - return (me->totvert != 0); -} - -void BKE_mesh_transform(Mesh *me, const float mat[4][4], bool do_keys) -{ - int i; - MVert *mvert = CustomData_duplicate_referenced_layer(&me->vdata, CD_MVERT, me->totvert); - float(*lnors)[3] = CustomData_duplicate_referenced_layer(&me->ldata, CD_NORMAL, me->totloop); - - /* If the referenced layer has been re-allocated need to update pointers stored in the mesh. */ - BKE_mesh_update_customdata_pointers(me, false); - - for (i = 0; i < me->totvert; i++, mvert++) { - mul_m4_v3(mat, mvert->co); - } - - if (do_keys && me->key) { - KeyBlock *kb; - for (kb = me->key->block.first; kb; kb = kb->next) { - float *fp = kb->data; - for (i = kb->totelem; i--; fp += 3) { - mul_m4_v3(mat, fp); - } - } - } - - /* don't update normals, caller can do this explicitly. - * We do update loop normals though, those may not be auto-generated - * (see e.g. STL import script)! */ - if (lnors) { - float m3[3][3]; - - copy_m3_m4(m3, mat); - normalize_m3(m3); - for (i = 0; i < me->totloop; i++, lnors++) { - mul_m3_v3(m3, *lnors); - } - } -} - -void BKE_mesh_translate(Mesh *me, const float offset[3], const bool do_keys) -{ - CustomData_duplicate_referenced_layer(&me->vdata, CD_MVERT, me->totvert); - /* If the referenced layer has been re-allocated need to update pointers stored in the mesh. */ - BKE_mesh_update_customdata_pointers(me, false); - - int i = me->totvert; - for (MVert *mvert = me->mvert; i--; mvert++) { - add_v3_v3(mvert->co, offset); - } - - if (do_keys && me->key) { - KeyBlock *kb; - for (kb = me->key->block.first; kb; kb = kb->next) { - float *fp = kb->data; - for (i = kb->totelem; i--; fp += 3) { - add_v3_v3(fp, offset); - } - } - } -} - -void BKE_mesh_tessface_ensure(Mesh *mesh) -{ - if (mesh->totpoly && mesh->totface == 0) { - BKE_mesh_tessface_calc(mesh); - } -} - -void BKE_mesh_tessface_clear(Mesh *mesh) -{ - mesh_tessface_clear_intern(mesh, true); -} - -void BKE_mesh_do_versions_cd_flag_init(Mesh *mesh) -{ - if (UNLIKELY(mesh->cd_flag)) { - return; - } - - MVert *mv; - MEdge *med; - int i; - - for (mv = mesh->mvert, i = 0; i < mesh->totvert; mv++, i++) { - if (mv->bweight != 0) { - mesh->cd_flag |= ME_CDFLAG_VERT_BWEIGHT; - break; - } - } - - for (med = mesh->medge, i = 0; i < mesh->totedge; med++, i++) { - if (med->bweight != 0) { - mesh->cd_flag |= ME_CDFLAG_EDGE_BWEIGHT; - if (mesh->cd_flag & ME_CDFLAG_EDGE_CREASE) { - break; - } - } - if (med->crease != 0) { - mesh->cd_flag |= ME_CDFLAG_EDGE_CREASE; - if (mesh->cd_flag & ME_CDFLAG_EDGE_BWEIGHT) { - break; - } - } - } -} - -/* -------------------------------------------------------------------- */ -/* MSelect functions (currently used in weight paint mode) */ - -void BKE_mesh_mselect_clear(Mesh *me) -{ - MEM_SAFE_FREE(me->mselect); - me->totselect = 0; -} - -void BKE_mesh_mselect_validate(Mesh *me) -{ - MSelect *mselect_src, *mselect_dst; - int i_src, i_dst; - - if (me->totselect == 0) { - return; - } - - mselect_src = me->mselect; - mselect_dst = MEM_malloc_arrayN((me->totselect), sizeof(MSelect), "Mesh selection history"); - - for (i_src = 0, i_dst = 0; i_src < me->totselect; i_src++) { - int index = mselect_src[i_src].index; - switch (mselect_src[i_src].type) { - case ME_VSEL: { - if (me->mvert[index].flag & SELECT) { - mselect_dst[i_dst] = mselect_src[i_src]; - i_dst++; - } - break; - } - case ME_ESEL: { - if (me->medge[index].flag & SELECT) { - mselect_dst[i_dst] = mselect_src[i_src]; - i_dst++; - } - break; - } - case ME_FSEL: { - if (me->mpoly[index].flag & SELECT) { - mselect_dst[i_dst] = mselect_src[i_src]; - i_dst++; - } - break; - } - default: { - BLI_assert(0); - break; - } - } - } - - MEM_freeN(mselect_src); - - if (i_dst == 0) { - MEM_freeN(mselect_dst); - mselect_dst = NULL; - } - else if (i_dst != me->totselect) { - mselect_dst = MEM_reallocN(mselect_dst, sizeof(MSelect) * i_dst); - } - - me->totselect = i_dst; - me->mselect = mselect_dst; -} - -/** - * Return the index within me->mselect, or -1 - */ -int BKE_mesh_mselect_find(Mesh *me, int index, int type) -{ - BLI_assert(ELEM(type, ME_VSEL, ME_ESEL, ME_FSEL)); - - for (int i = 0; i < me->totselect; i++) { - if ((me->mselect[i].index == index) && (me->mselect[i].type == type)) { - return i; - } - } - - return -1; -} - -/** - * Return The index of the active element. - */ -int BKE_mesh_mselect_active_get(Mesh *me, int type) -{ - BLI_assert(ELEM(type, ME_VSEL, ME_ESEL, ME_FSEL)); - - if (me->totselect) { - if (me->mselect[me->totselect - 1].type == type) { - return me->mselect[me->totselect - 1].index; - } - } - return -1; -} - -void BKE_mesh_mselect_active_set(Mesh *me, int index, int type) -{ - const int msel_index = BKE_mesh_mselect_find(me, index, type); - - if (msel_index == -1) { - /* add to the end */ - me->mselect = MEM_reallocN(me->mselect, sizeof(MSelect) * (me->totselect + 1)); - me->mselect[me->totselect].index = index; - me->mselect[me->totselect].type = type; - me->totselect++; - } - else if (msel_index != me->totselect - 1) { - /* move to the end */ - SWAP(MSelect, me->mselect[msel_index], me->mselect[me->totselect - 1]); - } - - BLI_assert((me->mselect[me->totselect - 1].index == index) && - (me->mselect[me->totselect - 1].type == type)); -} - -void BKE_mesh_count_selected_items(const Mesh *mesh, int r_count[3]) -{ - r_count[0] = r_count[1] = r_count[2] = 0; - if (mesh->edit_mesh) { - BMesh *bm = mesh->edit_mesh->bm; - r_count[0] = bm->totvertsel; - r_count[1] = bm->totedgesel; - r_count[2] = bm->totfacesel; - } - /* We could support faces in paint modes. */ -} - -void BKE_mesh_vert_coords_get(const Mesh *mesh, float (*vert_coords)[3]) -{ - const MVert *mv = mesh->mvert; - for (int i = 0; i < mesh->totvert; i++, mv++) { - copy_v3_v3(vert_coords[i], mv->co); - } -} - -float (*BKE_mesh_vert_coords_alloc(const Mesh *mesh, int *r_vert_len))[3] -{ - float(*vert_coords)[3] = MEM_mallocN(sizeof(float[3]) * mesh->totvert, __func__); - BKE_mesh_vert_coords_get(mesh, vert_coords); - if (r_vert_len) { - *r_vert_len = mesh->totvert; - } - return vert_coords; -} - -void BKE_mesh_vert_coords_apply(Mesh *mesh, const float (*vert_coords)[3]) -{ - /* This will just return the pointer if it wasn't a referenced layer. */ - MVert *mv = CustomData_duplicate_referenced_layer(&mesh->vdata, CD_MVERT, mesh->totvert); - mesh->mvert = mv; - for (int i = 0; i < mesh->totvert; i++, mv++) { - copy_v3_v3(mv->co, vert_coords[i]); - } - BKE_mesh_normals_tag_dirty(mesh); -} - -void BKE_mesh_vert_coords_apply_with_mat4(Mesh *mesh, - const float (*vert_coords)[3], - const float mat[4][4]) -{ - /* This will just return the pointer if it wasn't a referenced layer. */ - MVert *mv = CustomData_duplicate_referenced_layer(&mesh->vdata, CD_MVERT, mesh->totvert); - mesh->mvert = mv; - for (int i = 0; i < mesh->totvert; i++, mv++) { - mul_v3_m4v3(mv->co, mat, vert_coords[i]); - } - BKE_mesh_normals_tag_dirty(mesh); -} - -void BKE_mesh_vert_normals_apply(Mesh *mesh, const short (*vert_normals)[3]) -{ - /* This will just return the pointer if it wasn't a referenced layer. */ - MVert *mv = CustomData_duplicate_referenced_layer(&mesh->vdata, CD_MVERT, mesh->totvert); - mesh->mvert = mv; - for (int i = 0; i < mesh->totvert; i++, mv++) { - copy_v3_v3_short(mv->no, vert_normals[i]); - } - mesh->runtime.cd_dirty_vert &= ~CD_MASK_NORMAL; -} - -/** - * Compute 'split' (aka loop, or per face corner's) normals. - * - * \param r_lnors_spacearr: Allows to get computed loop normal space array. - * That data, among other things, contains 'smooth fan' info, useful e.g. - * to split geometry along sharp edges... - */ -void BKE_mesh_calc_normals_split_ex(Mesh *mesh, MLoopNorSpaceArray *r_lnors_spacearr) -{ - float(*r_loopnors)[3]; - float(*polynors)[3]; - short(*clnors)[2] = NULL; - bool free_polynors = false; - - /* Note that we enforce computing clnors when the clnor space array is requested by caller here. - * However, we obviously only use the autosmooth angle threshold - * only in case autosmooth is enabled. */ - const bool use_split_normals = (r_lnors_spacearr != NULL) || ((mesh->flag & ME_AUTOSMOOTH) != 0); - const float split_angle = (mesh->flag & ME_AUTOSMOOTH) != 0 ? mesh->smoothresh : (float)M_PI; - - if (CustomData_has_layer(&mesh->ldata, CD_NORMAL)) { - r_loopnors = CustomData_get_layer(&mesh->ldata, CD_NORMAL); - memset(r_loopnors, 0, sizeof(float[3]) * mesh->totloop); - } - else { - r_loopnors = CustomData_add_layer(&mesh->ldata, CD_NORMAL, CD_CALLOC, NULL, mesh->totloop); - CustomData_set_layer_flag(&mesh->ldata, CD_NORMAL, CD_FLAG_TEMPORARY); - } - - /* may be NULL */ - clnors = CustomData_get_layer(&mesh->ldata, CD_CUSTOMLOOPNORMAL); - - if (CustomData_has_layer(&mesh->pdata, CD_NORMAL)) { - /* This assume that layer is always up to date, not sure this is the case - * (esp. in Edit mode?)... */ - polynors = CustomData_get_layer(&mesh->pdata, CD_NORMAL); - free_polynors = false; - } - else { - polynors = MEM_malloc_arrayN(mesh->totpoly, sizeof(float[3]), __func__); - BKE_mesh_calc_normals_poly_and_vertex(mesh->mvert, - mesh->totvert, - mesh->mloop, - mesh->totloop, - mesh->mpoly, - mesh->totpoly, - polynors, - NULL); - free_polynors = true; - } - - BKE_mesh_normals_loop_split(mesh->mvert, - mesh->totvert, - mesh->medge, - mesh->totedge, - mesh->mloop, - r_loopnors, - mesh->totloop, - mesh->mpoly, - (const float(*)[3])polynors, - mesh->totpoly, - use_split_normals, - split_angle, - r_lnors_spacearr, - clnors, - NULL); - - if (free_polynors) { - MEM_freeN(polynors); - } - - mesh->runtime.cd_dirty_vert &= ~CD_MASK_NORMAL; - mesh->runtime.cd_dirty_poly &= ~CD_MASK_NORMAL; - mesh->runtime.cd_dirty_loop &= ~CD_MASK_NORMAL; -} - -void BKE_mesh_calc_normals_split(Mesh *mesh) -{ - BKE_mesh_calc_normals_split_ex(mesh, NULL); -} - -/* Split faces helper functions. */ - -typedef struct SplitFaceNewVert { - struct SplitFaceNewVert *next; - int new_index; - int orig_index; - float *vnor; -} SplitFaceNewVert; - -typedef struct SplitFaceNewEdge { - struct SplitFaceNewEdge *next; - int new_index; - int orig_index; - int v1; - int v2; -} SplitFaceNewEdge; - -/* Detect needed new vertices, and update accordingly loops' vertex indices. - * WARNING! Leaves mesh in invalid state. */ -static int split_faces_prepare_new_verts(const Mesh *mesh, - MLoopNorSpaceArray *lnors_spacearr, - SplitFaceNewVert **new_verts, - MemArena *memarena) -{ - /* This is now mandatory, trying to do the job in simple way without that data is doomed to fail, - * even when only dealing with smooth/flat faces one can find cases that no simple algorithm - * can handle properly. */ - BLI_assert(lnors_spacearr != NULL); - - const int loops_len = mesh->totloop; - int verts_len = mesh->totvert; - MVert *mvert = mesh->mvert; - MLoop *mloop = mesh->mloop; - - BLI_bitmap *verts_used = BLI_BITMAP_NEW(verts_len, __func__); - BLI_bitmap *done_loops = BLI_BITMAP_NEW(loops_len, __func__); - - MLoop *ml = mloop; - MLoopNorSpace **lnor_space = lnors_spacearr->lspacearr; - - BLI_assert(lnors_spacearr->data_type == MLNOR_SPACEARR_LOOP_INDEX); - - for (int loop_idx = 0; loop_idx < loops_len; loop_idx++, ml++, lnor_space++) { - if (!BLI_BITMAP_TEST(done_loops, loop_idx)) { - const int vert_idx = ml->v; - const bool vert_used = BLI_BITMAP_TEST_BOOL(verts_used, vert_idx); - /* If vert is already used by another smooth fan, we need a new vert for this one. */ - const int new_vert_idx = vert_used ? verts_len++ : vert_idx; - - BLI_assert(*lnor_space); - - if ((*lnor_space)->flags & MLNOR_SPACE_IS_SINGLE) { - /* Single loop in this fan... */ - BLI_assert(POINTER_AS_INT((*lnor_space)->loops) == loop_idx); - BLI_BITMAP_ENABLE(done_loops, loop_idx); - if (vert_used) { - ml->v = new_vert_idx; - } - } - else { - for (LinkNode *lnode = (*lnor_space)->loops; lnode; lnode = lnode->next) { - const int ml_fan_idx = POINTER_AS_INT(lnode->link); - BLI_BITMAP_ENABLE(done_loops, ml_fan_idx); - if (vert_used) { - mloop[ml_fan_idx].v = new_vert_idx; - } - } - } - - if (!vert_used) { - BLI_BITMAP_ENABLE(verts_used, vert_idx); - /* We need to update that vertex's normal here, we won't go over it again. */ - /* This is important! *DO NOT* set vnor to final computed lnor, - * vnor should always be defined to 'automatic normal' value computed from its polys, - * not some custom normal. - * Fortunately, that's the loop normal space's 'lnor' reference vector. ;) */ - normal_float_to_short_v3(mvert[vert_idx].no, (*lnor_space)->vec_lnor); - } - else { - /* Add new vert to list. */ - SplitFaceNewVert *new_vert = BLI_memarena_alloc(memarena, sizeof(*new_vert)); - new_vert->orig_index = vert_idx; - new_vert->new_index = new_vert_idx; - new_vert->vnor = (*lnor_space)->vec_lnor; /* See note above. */ - new_vert->next = *new_verts; - *new_verts = new_vert; - } - } - } - - MEM_freeN(done_loops); - MEM_freeN(verts_used); - - return verts_len - mesh->totvert; -} - -/* Detect needed new edges, and update accordingly loops' edge indices. - * WARNING! Leaves mesh in invalid state. */ -static int split_faces_prepare_new_edges(const Mesh *mesh, - SplitFaceNewEdge **new_edges, - MemArena *memarena) -{ - const int num_polys = mesh->totpoly; - int num_edges = mesh->totedge; - MEdge *medge = mesh->medge; - MLoop *mloop = mesh->mloop; - const MPoly *mpoly = mesh->mpoly; - - BLI_bitmap *edges_used = BLI_BITMAP_NEW(num_edges, __func__); - EdgeHash *edges_hash = BLI_edgehash_new_ex(__func__, num_edges); - - const MPoly *mp = mpoly; - for (int poly_idx = 0; poly_idx < num_polys; poly_idx++, mp++) { - MLoop *ml_prev = &mloop[mp->loopstart + mp->totloop - 1]; - MLoop *ml = &mloop[mp->loopstart]; - for (int loop_idx = 0; loop_idx < mp->totloop; loop_idx++, ml++) { - void **eval; - if (!BLI_edgehash_ensure_p(edges_hash, ml_prev->v, ml->v, &eval)) { - const int edge_idx = ml_prev->e; - - /* That edge has not been encountered yet, define it. */ - if (BLI_BITMAP_TEST(edges_used, edge_idx)) { - /* Original edge has already been used, we need to define a new one. */ - const int new_edge_idx = num_edges++; - *eval = POINTER_FROM_INT(new_edge_idx); - ml_prev->e = new_edge_idx; - - SplitFaceNewEdge *new_edge = BLI_memarena_alloc(memarena, sizeof(*new_edge)); - new_edge->orig_index = edge_idx; - new_edge->new_index = new_edge_idx; - new_edge->v1 = ml_prev->v; - new_edge->v2 = ml->v; - new_edge->next = *new_edges; - *new_edges = new_edge; - } - else { - /* We can re-use original edge. */ - medge[edge_idx].v1 = ml_prev->v; - medge[edge_idx].v2 = ml->v; - *eval = POINTER_FROM_INT(edge_idx); - BLI_BITMAP_ENABLE(edges_used, edge_idx); - } - } - else { - /* Edge already known, just update loop's edge index. */ - ml_prev->e = POINTER_AS_INT(*eval); - } - - ml_prev = ml; - } - } - - MEM_freeN(edges_used); - BLI_edgehash_free(edges_hash, NULL); - - return num_edges - mesh->totedge; -} - -/* Perform actual split of vertices. */ -static void split_faces_split_new_verts(Mesh *mesh, - SplitFaceNewVert *new_verts, - const int num_new_verts) -{ - const int verts_len = mesh->totvert - num_new_verts; - MVert *mvert = mesh->mvert; - - /* Remember new_verts is a single linklist, so its items are in reversed order... */ - MVert *new_mv = &mvert[mesh->totvert - 1]; - for (int i = mesh->totvert - 1; i >= verts_len; i--, new_mv--, new_verts = new_verts->next) { - BLI_assert(new_verts->new_index == i); - BLI_assert(new_verts->new_index != new_verts->orig_index); - CustomData_copy_data(&mesh->vdata, &mesh->vdata, new_verts->orig_index, i, 1); - if (new_verts->vnor) { - normal_float_to_short_v3(new_mv->no, new_verts->vnor); - } - } -} - -/* Perform actual split of edges. */ -static void split_faces_split_new_edges(Mesh *mesh, - SplitFaceNewEdge *new_edges, - const int num_new_edges) -{ - const int num_edges = mesh->totedge - num_new_edges; - MEdge *medge = mesh->medge; - - /* Remember new_edges is a single linklist, so its items are in reversed order... */ - MEdge *new_med = &medge[mesh->totedge - 1]; - for (int i = mesh->totedge - 1; i >= num_edges; i--, new_med--, new_edges = new_edges->next) { - BLI_assert(new_edges->new_index == i); - BLI_assert(new_edges->new_index != new_edges->orig_index); - CustomData_copy_data(&mesh->edata, &mesh->edata, new_edges->orig_index, i, 1); - new_med->v1 = new_edges->v1; - new_med->v2 = new_edges->v2; - } -} - -/* Split faces based on the edge angle and loop normals. - * Matches behavior of face splitting in render engines. - * - * NOTE: Will leave CD_NORMAL loop data layer which is - * used by render engines to set shading up. - */ -void BKE_mesh_split_faces(Mesh *mesh, bool free_loop_normals) -{ - const int num_polys = mesh->totpoly; - - if (num_polys == 0) { - return; - } - BKE_mesh_tessface_clear(mesh); - - MLoopNorSpaceArray lnors_spacearr = {NULL}; - /* Compute loop normals and loop normal spaces (a.k.a. smooth fans of faces around vertices). */ - BKE_mesh_calc_normals_split_ex(mesh, &lnors_spacearr); - /* Stealing memarena from loop normals space array. */ - MemArena *memarena = lnors_spacearr.mem; - - SplitFaceNewVert *new_verts = NULL; - SplitFaceNewEdge *new_edges = NULL; - - /* Ensure we own the layers, we need to do this before split_faces_prepare_new_verts as it will - * directly assign new indices to existing edges and loops. */ - CustomData_duplicate_referenced_layers(&mesh->vdata, mesh->totvert); - CustomData_duplicate_referenced_layers(&mesh->edata, mesh->totedge); - CustomData_duplicate_referenced_layers(&mesh->ldata, mesh->totloop); - /* Update pointers in case we duplicated referenced layers. */ - BKE_mesh_update_customdata_pointers(mesh, false); - - /* Detect loop normal spaces (a.k.a. smooth fans) that will need a new vert. */ - const int num_new_verts = split_faces_prepare_new_verts( - mesh, &lnors_spacearr, &new_verts, memarena); - - if (num_new_verts > 0) { - /* Reminder: beyond this point, there is no way out, mesh is in invalid state - * (due to early-reassignment of loops' vertex and edge indices to new, - * to-be-created split ones). */ - - const int num_new_edges = split_faces_prepare_new_edges(mesh, &new_edges, memarena); - /* We can have to split a vertex without having to add a single new edge... */ - const bool do_edges = (num_new_edges > 0); - - /* Reallocate all vert and edge related data. */ - mesh->totvert += num_new_verts; - CustomData_realloc(&mesh->vdata, mesh->totvert); - if (do_edges) { - mesh->totedge += num_new_edges; - CustomData_realloc(&mesh->edata, mesh->totedge); - } - /* Update pointers to a newly allocated memory. */ - BKE_mesh_update_customdata_pointers(mesh, false); - - /* Perform actual split of vertices and edges. */ - split_faces_split_new_verts(mesh, new_verts, num_new_verts); - if (do_edges) { - split_faces_split_new_edges(mesh, new_edges, num_new_edges); - } - } - - /* NOTE: after this point mesh is expected to be valid again. */ - - /* CD_NORMAL is expected to be temporary only. */ - if (free_loop_normals) { - CustomData_free_layers(&mesh->ldata, CD_NORMAL, mesh->totloop); - } - - /* Also frees new_verts/edges temp data, since we used its memarena to allocate them. */ - BKE_lnor_spacearr_free(&lnors_spacearr); - -#ifdef VALIDATE_MESH - BKE_mesh_validate(mesh, true, true); -#endif -} - -/* **** Depsgraph evaluation **** */ - -void BKE_mesh_eval_geometry(Depsgraph *depsgraph, Mesh *mesh) -{ - DEG_debug_print_eval(depsgraph, __func__, mesh->id.name, mesh); - BKE_mesh_texspace_calc(mesh); - /* We are here because something did change in the mesh. This means we can not trust the existing - * evaluated mesh, and we don't know what parts of the mesh did change. So we simply delete the - * evaluated mesh and let objects to re-create it with updated settings. */ - if (mesh->runtime.mesh_eval != NULL) { - mesh->runtime.mesh_eval->edit_mesh = NULL; - BKE_id_free(NULL, mesh->runtime.mesh_eval); - mesh->runtime.mesh_eval = NULL; - } - if (DEG_is_active(depsgraph)) { - Mesh *mesh_orig = (Mesh *)DEG_get_original_id(&mesh->id); - if (mesh->texflag & ME_AUTOSPACE_EVALUATED) { - mesh_orig->texflag |= ME_AUTOSPACE_EVALUATED; - copy_v3_v3(mesh_orig->loc, mesh->loc); - copy_v3_v3(mesh_orig->size, mesh->size); - } - } -} |