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blender-archive/source/blender/bmesh/operators/bmo_mesh_conv.c

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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributor(s): Joseph Eagar.
*
* ***** END GPL LICENSE BLOCK *****
*/
#include "MEM_guardedalloc.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_object_types.h"
#include "DNA_key_types.h"
#include "DNA_modifier_types.h"
#include "BKE_mesh.h"
#include "BLI_listbase.h"
#include "BKE_global.h"
#include "BKE_key.h"
#include "BKE_main.h"
#include "BKE_customdata.h"
#include "BLI_math.h"
#include "BLI_array.h"
#include "bmesh.h"
#include "bmesh_private.h"
#include "bmesh_operators_private.h" /* own include */
/*
* MESH CONV.C
*
* This file contains functions
* for converting a Mesh
* into a Bmesh, and back again.
*
*/
void mesh_to_bmesh_exec(BMesh *bm, BMOperator *op)
{
Object *ob = BMO_slot_ptr_get(op, "object");
Mesh *me = BMO_slot_ptr_get(op, "mesh");
MVert *mvert;
BLI_array_declare(verts);
MEdge *medge;
MLoop *ml;
MPoly *mpoly;
KeyBlock *actkey, *block;
BMVert *v, **vt = NULL, **verts = NULL;
BMEdge *e, **fedges = NULL, **et = NULL;
BMFace *f;
BMLoop *l;
BLI_array_declare(fedges);
float (*keyco)[3] = NULL;
int *keyi;
int set_key = BMO_slot_bool_get(op, "set_shapekey");
int totuv, i, j;
if (!me || !me->totvert) {
return; /* sanity check */
}
vt = MEM_mallocN(sizeof(void **) * me->totvert, "mesh to bmesh vtable");
CustomData_copy(&me->vdata, &bm->vdata, CD_MASK_BMESH, CD_CALLOC, 0);
CustomData_copy(&me->edata, &bm->edata, CD_MASK_BMESH, CD_CALLOC, 0);
CustomData_copy(&me->ldata, &bm->ldata, CD_MASK_BMESH, CD_CALLOC, 0);
CustomData_copy(&me->pdata, &bm->pdata, CD_MASK_BMESH, CD_CALLOC, 0);
/* make sure uv layer names are consisten */
totuv = CustomData_number_of_layers(&bm->pdata, CD_MTEXPOLY);
for (i = 0; i < totuv; i++) {
int li = CustomData_get_layer_index_n(&bm->pdata, CD_MTEXPOLY, i);
CustomData_set_layer_name(&bm->ldata, CD_MLOOPUV, i, bm->pdata.layers[li].name);
}
if (!CustomData_has_layer(&bm->edata, CD_CREASE))
CustomData_add_layer(&bm->edata, CD_CREASE, CD_ASSIGN, NULL, 0);
if (!CustomData_has_layer(&bm->edata, CD_BWEIGHT))
CustomData_add_layer(&bm->edata, CD_BWEIGHT, CD_ASSIGN, NULL, 0);
if (!CustomData_has_layer(&bm->vdata, CD_BWEIGHT))
CustomData_add_layer(&bm->vdata, CD_BWEIGHT, CD_ASSIGN, NULL, 0);
if (me->key && ob->shapenr > me->key->totkey) {
ob->shapenr = me->key->totkey - 1;
}
actkey = ob_get_keyblock(ob);
if (actkey && actkey->totelem == me->totvert) {
CustomData_add_layer(&bm->vdata, CD_SHAPE_KEYINDEX, CD_ASSIGN, NULL, 0);
/* check if we need to generate unique ids for the shapekeys.
* this also exists in the file reading code, but is here for
* a sanity chec */
if (!me->key->uidgen) {
fprintf(stderr,
"%s had to generate shape key uid's in a situation we shouldn't need to! "
"(bmesh internal error)\n",
__func__);
me->key->uidgen = 1;
for (block = me->key->block.first; block; block = block->next) {
block->uid = me->key->uidgen++;
}
}
keyco = actkey->data;
bm->shapenr = ob->shapenr;
for (i = 0, block = me->key->block.first; block; block = block->next, i++) {
CustomData_add_layer_named(&bm->vdata, CD_SHAPEKEY,
CD_ASSIGN, NULL, 0, block->name);
j = CustomData_get_layer_index_n(&bm->vdata, CD_SHAPEKEY, i);
bm->vdata.layers[j].uid = block->uid;
}
}
else if (actkey) {
printf("shapekey<->mesh mismatch!\n");
}
CustomData_bmesh_init_pool(&bm->vdata, bm_mesh_allocsize_default[0]);
CustomData_bmesh_init_pool(&bm->edata, bm_mesh_allocsize_default[1]);
CustomData_bmesh_init_pool(&bm->ldata, bm_mesh_allocsize_default[2]);
CustomData_bmesh_init_pool(&bm->pdata, bm_mesh_allocsize_default[3]);
for (i = 0, mvert = me->mvert; i < me->totvert; i++, mvert++) {
v = BM_vert_create(bm, keyco && set_key ? keyco[i] : mvert->co, NULL);
BM_elem_index_set(v, i); /* set_ok */
vt[i] = v;
/* transfer flag */
v->head.hflag = BM_vert_flag_from_mflag(mvert->flag);
/* this is necassary for selection counts to work properl */
if (BM_elem_flag_test(v, BM_ELEM_SELECT)) BM_vert_select_set(bm, v, TRUE);
normal_short_to_float_v3(v->no, mvert->no);
BM_elem_float_data_set(&bm->vdata, v, CD_BWEIGHT, (float)mvert->bweight / 255.0f);
/* Copy Custom Dat */
CustomData_to_bmesh_block(&me->vdata, &bm->vdata, i, &v->head.data);
/* set shapekey dat */
if (me->key) {
/* set shape key original inde */
keyi = CustomData_bmesh_get(&bm->vdata, v->head.data, CD_SHAPE_KEYINDEX);
if (keyi) {
*keyi = i;
}
for (block = me->key->block.first, j = 0; block; block = block->next, j++) {
float *co = CustomData_bmesh_get_n(&bm->vdata, v->head.data, CD_SHAPEKEY, j);
if (co) {
copy_v3_v3(co, ((float *)block->data) + 3 * i);
}
}
}
}
bm->elem_index_dirty &= ~BM_VERT; /* added in order, clear dirty flag */
if (!me->totedge) {
MEM_freeN(vt);
return;
}
et = MEM_mallocN(sizeof(void **) * me->totedge, "mesh to bmesh etable");
medge = me->medge;
for (i = 0; i < me->totedge; i++, medge++) {
e = BM_edge_create(bm, vt[medge->v1], vt[medge->v2], NULL, FALSE);
BM_elem_index_set(e, i); /* set_ok */
et[i] = e;
/* transfer flags */
e->head.hflag = BM_edge_flag_from_mflag(medge->flag);
/* this is necassary for selection counts to work properly */
if (BM_elem_flag_test(e, BM_ELEM_SELECT)) BM_elem_select_set(bm, e, TRUE);
/* Copy Custom Dat */
CustomData_to_bmesh_block(&me->edata, &bm->edata, i, &e->head.data);
BM_elem_float_data_set(&bm->edata, e, CD_CREASE, (float)medge->crease / 255.0f);
BM_elem_float_data_set(&bm->edata, e, CD_BWEIGHT, (float)medge->bweight / 255.0f);
}
bm->elem_index_dirty &= ~BM_EDGE; /* added in order, clear dirty flag */
mpoly = me->mpoly;
for (i = 0; i < me->totpoly; i++, mpoly++) {
BMIter iter;
BLI_array_empty(fedges);
BLI_array_empty(verts);
BLI_array_growitems(fedges, mpoly->totloop);
BLI_array_growitems(verts, mpoly->totloop);
for (j = 0; j < mpoly->totloop; j++) {
ml = &me->mloop[mpoly->loopstart + j];
v = vt[ml->v];
e = et[ml->e];
fedges[j] = e;
verts[j] = v;
}
/* not sure what this block is supposed to do,
* but its unused. so commenting - campbell */
#if 0
{
BMVert *v1, *v2;
v1 = vt[me->mloop[mpoly->loopstart].v];
v2 = vt[me->mloop[mpoly->loopstart + 1].v];
if (v1 == fedges[0]->v1) {
v2 = fedges[0]->v2;
}
else {
v1 = fedges[0]->v2;
v2 = fedges[0]->v1;
}
}
#endif
f = BM_face_create(bm, verts, fedges, mpoly->totloop, FALSE);
if (!f) {
printf("%s: Warning! Bad face in mesh"
" \"%s\" at index %d!, skipping\n",
__func__, me->id.name + 2, i);
continue;
}
/* dont use 'i' since we may have skipped the face */
BM_elem_index_set(f, bm->totface - 1); /* set_ok */
/* transfer flag */
f->head.hflag = BM_face_flag_from_mflag(mpoly->flag);
/* this is necassary for selection counts to work properl */
if (BM_elem_flag_test(f, BM_ELEM_SELECT)) BM_elem_select_set(bm, f, TRUE);
f->mat_nr = mpoly->mat_nr;
if (i == me->act_face) bm->act_face = f;
j = 0;
BM_ITER_INDEX(l, &iter, bm, BM_LOOPS_OF_FACE, f, j) {
/* Save index of correspsonding MLoop */
BM_elem_index_set(l, mpoly->loopstart + j); /* set_loop */
}
/* Copy Custom Dat */
CustomData_to_bmesh_block(&me->pdata, &bm->pdata, i, &f->head.data);
}
bm->elem_index_dirty &= ~BM_FACE; /* added in order, clear dirty flag */
{
BMIter fiter;
BMIter liter;
/* Copy over loop CustomData. Doing this in a separate loop isn't necessary
* but is an optimization, to avoid copying a bunch of interpolated customdata
* for each BMLoop (from previous BMLoops using the same edge), always followed
* by freeing the interpolated data and overwriting it with data from the Mesh. */
BM_ITER(f, &fiter, bm, BM_FACES_OF_MESH, NULL) {
BM_ITER(l, &liter, bm, BM_LOOPS_OF_FACE, f) {
int li = BM_elem_index_get(l);
CustomData_to_bmesh_block(&me->ldata, &bm->ldata, li, &l->head.data);
BM_elem_index_set(l, 0); /* set_loop */
}
}
}
if (me->mselect && me->totselect != 0) {
BMIter iter;
BMVert *vertex;
BMEdge *edge;
BMFace *face;
BMVert **vertex_array = MEM_callocN(sizeof(BMVert *) * bm->totvert,
"Selection Conversion Vertex Pointer Array");
BMEdge **edge_array = MEM_callocN(sizeof(BMEdge *) * bm->totedge,
"Selection Conversion Edge Pointer Array");
BMFace **face_array = MEM_callocN(sizeof(BMFace *) * bm->totface,
"Selection Conversion Face Pointer Array");
for (i = 0, vertex = BM_iter_new(&iter, bm, BM_VERTS_OF_MESH, NULL);
vertex;
i++, vertex = BM_iter_step(&iter))
{
vertex_array[i] = vertex;
}
for (i = 0, edge = BM_iter_new(&iter, bm, BM_EDGES_OF_MESH, NULL);
edge;
i++, edge = BM_iter_step(&iter))
{
edge_array[i] = edge;
}
for (i = 0, face = BM_iter_new(&iter, bm, BM_FACES_OF_MESH, NULL);
face;
i++, face = BM_iter_step(&iter))
{
face_array[i] = face;
}
if (me->mselect) {
for (i = 0; i < me->totselect; i++) {
if (me->mselect[i].type == ME_VSEL) {
BM_select_history_store(bm, vertex_array[me->mselect[i].index]);
}
else if (me->mselect[i].type == ME_ESEL) {
BM_select_history_store(bm, edge_array[me->mselect[i].index]);
}
else if (me->mselect[i].type == ME_FSEL) {
BM_select_history_store(bm, face_array[me->mselect[i].index]);
}
}
}
else {
me->totselect = 0;
}
MEM_freeN(vertex_array);
MEM_freeN(edge_array);
MEM_freeN(face_array);
}
else {
me->totselect = 0;
if (me->mselect) {
MEM_freeN(me->mselect);
me->mselect = NULL;
}
}
BLI_array_free(fedges);
BLI_array_free(verts);
MEM_freeN(vt);
MEM_freeN(et);
}
void object_load_bmesh_exec(BMesh *bm, BMOperator *op)
{
Object *ob = BMO_slot_ptr_get(op, "object");
/* Scene *scene = BMO_slot_ptr_get(op, "scene"); */
Mesh *me = ob->data;
BMO_op_callf(bm, "bmesh_to_mesh mesh=%p object=%p notesselation=%b", me, ob, TRUE);
}
static BMVert **bmesh_to_mesh_vertex_map(BMesh *bm, int ototvert)
{
BMVert **vertMap = NULL;
BMVert *eve;
int index;
int i = 0;
BMIter iter;
/* caller needs to ensure this */
BLI_assert(ototvert > 0);
vertMap = MEM_callocN(sizeof(*vertMap)*ototvert, "vertMap");
if (CustomData_has_layer(&bm->vdata, CD_SHAPE_KEYINDEX)) {
int *keyi;
BM_ITER(eve, &iter, bm, BM_VERTS_OF_MESH, NULL) {
keyi = CustomData_bmesh_get(&bm->vdata, eve->head.data, CD_SHAPE_KEYINDEX);
if (keyi) {
if (((index = *keyi) != ORIGINDEX_NONE) && (index < ototvert)) {
vertMap[index] = eve;
}
}
else {
if (i < ototvert) {
vertMap[i] = eve;
}
}
i++;
}
}
else {
BM_ITER(eve, &iter, bm, BM_VERTS_OF_MESH, NULL) {
if (i < ototvert) {
vertMap[i] = eve;
}
else {
break;
}
i++;
}
}
return vertMap;
}
BM_INLINE void bmesh_quick_edgedraw_flag(MEdge *med, BMEdge *e)
{
/* this is a cheap way to set the edge draw, its not precise and will
* pick the first 2 faces an edge uses */
if ( /* (med->flag & ME_EDGEDRAW) && */ /* assume to be true */
(e->l && (e->l != e->l->radial_next)) &&
(dot_v3v3(e->l->f->no, e->l->radial_next->f->no) > 0.998f))
{
med->flag &= ~ME_EDGEDRAW;
}
}
void bmesh_to_mesh_exec(BMesh *bm, BMOperator *op)
{
Mesh *me = BMO_slot_ptr_get(op, "mesh");
/* Object *ob = BMO_slot_ptr_get(op, "object"); */
MLoop *mloop;
MPoly *mpoly;
MVert *mvert, *oldverts;
MEdge *med, *medge;
BMVert *v, *eve;
BMEdge *e;
BMLoop *l;
BMFace *f;
BMIter iter, liter;
int i, j, *keyi, ototvert, totloop;
int dotess = !BMO_slot_bool_get(op, "notesselation");
ototvert = me->totvert;
/* new Vertex block */
if (bm->totvert == 0) mvert = NULL;
else mvert = MEM_callocN(bm->totvert * sizeof(MVert), "loadeditbMesh vert");
/* new Edge block */
if (bm->totedge == 0) medge = NULL;
else medge = MEM_callocN(bm->totedge * sizeof(MEdge), "loadeditbMesh edge");
/* build ngon dat */
/* new Ngon Face block */
if (bm->totface == 0) mpoly = NULL;
else mpoly = MEM_callocN(bm->totface * sizeof(MPoly), "loadeditbMesh poly");
/* find number of loops to allocat */
totloop = 0;
BM_ITER(f, &iter, bm, BM_FACES_OF_MESH, NULL) {
totloop += f->len;
}
if (totloop == 0) mloop = NULL;
else mloop = MEM_callocN(totloop * sizeof(MLoop), "loadeditbMesh loop");
/* lets save the old verts just in case we are actually working on
* a key ... we now do processing of the keys at the end */
oldverts = me->mvert;
/* don't free this yet */
CustomData_set_layer(&me->vdata, CD_MVERT, NULL);
/* free custom data */
CustomData_free(&me->vdata, me->totvert);
CustomData_free(&me->edata, me->totedge);
CustomData_free(&me->fdata, me->totface);
CustomData_free(&me->ldata, me->totloop);
CustomData_free(&me->pdata, me->totpoly);
/* add new custom data */
me->totvert = bm->totvert;
me->totedge = bm->totedge;
me->totloop = totloop;
me->totpoly = bm->totface;
/* will be overwritten with a valid value if 'dotess' is set, otherwise we
* end up with 'me->totface' and me->mface == NULL which can crash [#28625]
*/
me->totface = 0;
CustomData_copy(&bm->vdata, &me->vdata, CD_MASK_MESH, CD_CALLOC, me->totvert);
CustomData_copy(&bm->edata, &me->edata, CD_MASK_MESH, CD_CALLOC, me->totedge);
CustomData_copy(&bm->ldata, &me->ldata, CD_MASK_MESH, CD_CALLOC, me->totloop);
CustomData_copy(&bm->pdata, &me->pdata, CD_MASK_MESH, CD_CALLOC, me->totpoly);
CustomData_add_layer(&me->vdata, CD_MVERT, CD_ASSIGN, mvert, me->totvert);
CustomData_add_layer(&me->edata, CD_MEDGE, CD_ASSIGN, medge, me->totedge);
CustomData_add_layer(&me->ldata, CD_MLOOP, CD_ASSIGN, mloop, me->totloop);
CustomData_add_layer(&me->pdata, CD_MPOLY, CD_ASSIGN, mpoly, me->totpoly);
/* this is called again, 'dotess' arg is used there */
mesh_update_customdata_pointers(me, 0);
i = 0;
BM_ITER(v, &iter, bm, BM_VERTS_OF_MESH, NULL) {
float *bweight = CustomData_bmesh_get(&bm->vdata, v->head.data, CD_BWEIGHT);
mvert->bweight = bweight ? (char)((*bweight) * 255) : 0;
copy_v3_v3(mvert->co, v->co);
normal_float_to_short_v3(mvert->no, v->no);
mvert->flag = BM_vert_flag_to_mflag(v);
BM_elem_index_set(v, i); /* set_inline */
/* copy over customdat */
CustomData_from_bmesh_block(&bm->vdata, &me->vdata, v->head.data, i);
i++;
mvert++;
BM_CHECK_ELEMENT(bm, v);
}
bm->elem_index_dirty &= ~BM_VERT;
med = medge;
i = 0;
BM_ITER(e, &iter, bm, BM_EDGES_OF_MESH, NULL) {
float *crease = CustomData_bmesh_get(&bm->edata, e->head.data, CD_CREASE);
float *bweight = CustomData_bmesh_get(&bm->edata, e->head.data, CD_BWEIGHT);
med->v1 = BM_elem_index_get(e->v1);
med->v2 = BM_elem_index_get(e->v2);
med->crease = crease ? (char)((*crease) * 255) : 0;
med->bweight = bweight ? (char)((*bweight) * 255) : 0;
med->flag = BM_edge_flag_to_mflag(e);
BM_elem_index_set(e, i); /* set_inline */
/* copy over customdat */
CustomData_from_bmesh_block(&bm->edata, &me->edata, e->head.data, i);
bmesh_quick_edgedraw_flag(med, e);
i++;
med++;
BM_CHECK_ELEMENT(bm, e);
}
bm->elem_index_dirty &= ~BM_EDGE;
i = 0;
j = 0;
BM_ITER(f, &iter, bm, BM_FACES_OF_MESH, NULL) {
mpoly->loopstart = j;
mpoly->totloop = f->len;
mpoly->mat_nr = f->mat_nr;
mpoly->flag = BM_face_flag_to_mflag(f);
l = BM_iter_new(&liter, bm, BM_LOOPS_OF_FACE, f);
for ( ; l; l = BM_iter_step(&liter), j++, mloop++) {
mloop->e = BM_elem_index_get(l->e);
mloop->v = BM_elem_index_get(l->v);
/* copy over customdat */
CustomData_from_bmesh_block(&bm->ldata, &me->ldata, l->head.data, j);
BM_CHECK_ELEMENT(bm, l);
BM_CHECK_ELEMENT(bm, l->e);
BM_CHECK_ELEMENT(bm, l->v);
}
if (f == bm->act_face) me->act_face = i;
/* copy over customdat */
CustomData_from_bmesh_block(&bm->pdata, &me->pdata, f->head.data, i);
i++;
mpoly++;
BM_CHECK_ELEMENT(bm, f);
}
/* patch hook indices and vertex parents */
if (ototvert > 0) {
Object *ob;
ModifierData *md;
BMVert **vertMap = NULL;
int i, j;
for (ob = G.main->object.first; ob; ob = ob->id.next) {
if (ob->parent == bm->ob && ELEM(ob->partype, PARVERT1, PARVERT3)) {
if (vertMap == NULL) {
vertMap = bmesh_to_mesh_vertex_map(bm, ototvert);
}
if (ob->par1 < ototvert) {
eve = vertMap[ob->par1];
if (eve) ob->par1 = BM_elem_index_get(eve);
}
if (ob->par2 < ototvert) {
eve = vertMap[ob->par2];
if (eve) ob->par2 = BM_elem_index_get(eve);
}
if (ob->par3 < ototvert) {
eve = vertMap[ob->par3];
if (eve) ob->par3 = BM_elem_index_get(eve);
}
}
if (ob->data == me) {
for (md = ob->modifiers.first; md; md = md->next) {
if (md->type == eModifierType_Hook) {
HookModifierData *hmd = (HookModifierData *) md;
if (vertMap == NULL) {
vertMap = bmesh_to_mesh_vertex_map(bm, ototvert);
}
for (i = j = 0; i < hmd->totindex; i++) {
if (hmd->indexar[i] < ototvert) {
eve = vertMap[hmd->indexar[i]];
if (eve) {
hmd->indexar[j++] = BM_elem_index_get(eve);
}
}
else j++;
}
hmd->totindex = j;
}
}
}
}
if (vertMap) MEM_freeN(vertMap);
}
if (dotess) {
BKE_mesh_tessface_calc(me);
}
mesh_update_customdata_pointers(me, dotess);
{
BMEditSelection *selected;
me->totselect = BLI_countlist(&(bm->selected));
if (me->mselect) MEM_freeN(me->mselect);
me->mselect = MEM_callocN(sizeof(MSelect) * me->totselect, "Mesh selection history");
for (i = 0, selected = bm->selected.first; selected; i++, selected = selected->next) {
if (selected->htype == BM_VERT) {
me->mselect[i].type = ME_VSEL;
}
else if (selected->htype == BM_EDGE) {
me->mselect[i].type = ME_ESEL;
}
else if (selected->htype == BM_FACE) {
me->mselect[i].type = ME_FSEL;
}
me->mselect[i].index = BM_elem_index_get(selected->data);
}
}
/* see comment below, this logic is in twice */
if (me->key) {
KeyBlock *currkey;
KeyBlock *actkey = BLI_findlink(&me->key->block, bm->shapenr - 1);
float (*ofs)[3] = NULL;
/* go through and find any shapekey customdata layers
* that might not have corresponding KeyBlocks, and add them if
* necassary */
j = 0;
for (i = 0; i < bm->vdata.totlayer; i++) {
if (bm->vdata.layers[i].type != CD_SHAPEKEY)
continue;
for (currkey = me->key->block.first; currkey; currkey = currkey->next) {
if (currkey->uid == bm->vdata.layers[i].uid)
break;
}
if (!currkey) {
currkey = MEM_callocN(sizeof(KeyBlock), "KeyBlock mesh_conv.c");
currkey->type = KEY_LINEAR;
currkey->slidermin = 0.0f;
currkey->slidermax = 1.0f;
BLI_addtail(&me->key->block, currkey);
me->key->totkey++;
}
j++;
}
/* editing the base key should update others */
if (me->key->type == KEY_RELATIVE && oldverts) {
int act_is_basis = 0;
/* find if this key is a basis for any others */
for (currkey = me->key->block.first; currkey; currkey = currkey->next) {
if (bm->shapenr - 1 == currkey->relative) {
act_is_basis = 1;
break;
}
}
if (act_is_basis) { /* active key is a base */
float (*fp)[3] = actkey->data;
int *keyi;
i = 0;
ofs = MEM_callocN(sizeof(float) * 3 * bm->totvert, "currkey->data");
mvert = me->mvert;
BM_ITER(eve, &iter, bm, BM_VERTS_OF_MESH, NULL) {
keyi = CustomData_bmesh_get(&bm->vdata, eve->head.data, CD_SHAPE_KEYINDEX);
if (keyi && *keyi != ORIGINDEX_NONE) {
sub_v3_v3v3(ofs[i], mvert->co, fp[*keyi]);
}
i++;
mvert++;
}
}
}
for (currkey = me->key->block.first; currkey; currkey = currkey->next) {
j = 0;
for (i = 0; i < bm->vdata.totlayer; i++) {
if (bm->vdata.layers[i].type != CD_SHAPEKEY)
continue;
if (currkey->uid == bm->vdata.layers[i].uid) {
int apply_offset = (ofs && (currkey != actkey) && (bm->shapenr - 1 == currkey->relative));
float *fp, *co;
float (*ofs_pt)[3] = ofs;
if (currkey->data)
MEM_freeN(currkey->data);
currkey->data = fp = MEM_mallocN(sizeof(float) * 3 * bm->totvert, "shape key data");
currkey->totelem = bm->totvert;
mvert = me->mvert;
BM_ITER(eve, &iter, bm, BM_VERTS_OF_MESH, NULL) {
co = (currkey == actkey) ?
eve->co :
CustomData_bmesh_get_n(&bm->vdata, eve->head.data, CD_SHAPEKEY, j);
copy_v3_v3(fp, co);
/* propagate edited basis offsets to other shapes */
if (apply_offset) {
add_v3_v3(fp, *ofs_pt++);
}
if (currkey == actkey && oldverts) {
keyi = CustomData_bmesh_get(&bm->vdata, eve->head.data, CD_SHAPE_KEYINDEX);
if (*keyi >= 0 && *keyi < currkey->totelem) // valid old vertex
copy_v3_v3(mvert->co, oldverts[*keyi].co);
mvert++;
}
fp += 3;
}
break;
}
j++;
}
/* if we didn't find a shapekey, tag the block to be reconstructed
* via the old method below */
if (j == CustomData_number_of_layers(&bm->vdata, CD_SHAPEKEY)) {
currkey->flag |= KEYBLOCK_MISSING;
}
}
if (ofs) MEM_freeN(ofs);
}
/* XXX, code below is from trunk and a duplicate functionality
* to the block above.
* We should use one or the other, having both means we have to maintain
* both and keep them working the same way which is a hassle - campbell */
/* old method of reconstructing keys via vertice's original key indices,
* currently used if the new method above fails (which is theoretically
* possible in certain cases of undo) */
if (me->key) {
float *fp, *newkey, *oldkey;
KeyBlock *currkey;
KeyBlock *actkey = BLI_findlink(&me->key->block, bm->shapenr - 1);
float (*ofs)[3] = NULL;
/* editing the base key should update others */
if (me->key->type == KEY_RELATIVE && oldverts) {
int act_is_basis = 0;
/* find if this key is a basis for any others */
for (currkey = me->key->block.first; currkey; currkey = currkey->next) {
if (bm->shapenr - 1 == currkey->relative) {
act_is_basis = 1;
break;
}
}
if (act_is_basis) { /* active key is a base */
float (*fp)[3] = actkey->data;
int *keyi;
i = 0;
ofs = MEM_callocN(sizeof(float) * 3 * bm->totvert, "currkey->data");
mvert = me->mvert;
BM_ITER(eve, &iter, bm, BM_VERTS_OF_MESH, NULL) {
keyi = CustomData_bmesh_get(&bm->vdata, eve->head.data, CD_SHAPE_KEYINDEX);
if (keyi && *keyi != ORIGINDEX_NONE) {
sub_v3_v3v3(ofs[i], mvert->co, fp[*keyi]);
}
i++;
mvert++;
}
}
}
/* Lets reorder the key data so that things line up roughly
* with the way things were before editmode */
currkey = me->key->block.first;
while (currkey) {
int apply_offset = (ofs && (currkey != actkey) && (bm->shapenr - 1 == currkey->relative));
if (!(currkey->flag & KEYBLOCK_MISSING)) {
currkey = currkey->next;
continue;
}
printf("warning: had to hackishly reconstruct shape key \"%s\","
" it may not be correct anymore.\n", currkey->name);
currkey->flag &= ~KEYBLOCK_MISSING;
fp = newkey = MEM_callocN(me->key->elemsize * bm->totvert, "currkey->data");
oldkey = currkey->data;
eve = BM_iter_new(&iter, bm, BM_VERTS_OF_MESH, NULL);
i = 0;
mvert = me->mvert;
while (eve) {
keyi = CustomData_bmesh_get(&bm->vdata, eve->head.data, CD_SHAPE_KEYINDEX);
if (!keyi) {
break;
}
if (*keyi >= 0 && *keyi < currkey->totelem) { // valid old vertex
if (currkey == actkey) {
if (actkey == me->key->refkey) {
copy_v3_v3(fp, mvert->co);
}
else {
copy_v3_v3(fp, mvert->co);
if (oldverts) {
copy_v3_v3(mvert->co, oldverts[*keyi].co);
}
}
}
else {
if (oldkey) {
copy_v3_v3(fp, oldkey + 3 * *keyi);
}
}
}
else {
copy_v3_v3(fp, mvert->co);
}
/* propagate edited basis offsets to other shapes */
if (apply_offset) {
add_v3_v3(fp, ofs[i]);
}
fp+= 3;
++i;
++mvert;
eve = BM_iter_step(&iter);
}
currkey->totelem = bm->totvert;
if (currkey->data) MEM_freeN(currkey->data);
currkey->data = newkey;
currkey = currkey->next;
}
if (ofs) MEM_freeN(ofs);
}
if (oldverts) MEM_freeN(oldverts);
}
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