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topo mirror and sync with minor edits made to bmesh, no functional changes

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This commit is contained in:
Campbell Barton 2011-12-20 23:14:29 +00:00
parent 2d1de2e78d
commit 0e4f1ad43d
3 changed files with 86 additions and 73 deletions
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3
source/blender/editors/include/ED_mesh.h
View File

@ -253,7 +253,8 @@ typedef struct MirrTopoStore_t {
} MirrTopoStore_t;
int ED_mesh_mirrtopo_recalc_check(struct Mesh *me, const int ob_mode, MirrTopoStore_t *mesh_topo_store);
void ED_mesh_mirrtopo_init(struct Mesh *me, const int ob_mode, MirrTopoStore_t *mesh_topo_store);
void ED_mesh_mirrtopo_init(struct Mesh *me, const int ob_mode, MirrTopoStore_t *mesh_topo_store,
const short skip_em_vert_array_init);
void ED_mesh_mirrtopo_free(MirrTopoStore_t *mesh_topo_store);
#ifdef __cplusplus

154
source/blender/editors/mesh/editface.c
View File

@ -823,22 +823,22 @@ int do_paintface_box_select(ViewContext *vc, rcti *rect, int select, int extend)
typedef int MirrTopoHash_t;
typedef struct MirrTopoPair_t {
typedef struct MirrTopoVert_t {
MirrTopoHash_t hash;
int v_index;
} MirrTopoPair_t;
} MirrTopoVert_t;
static int MirrTopo_long_sort(const void *l1, const void *l2)
static int mirrtopo_hash_sort(const void *l1, const void *l2)
{
if ((MirrTopoHash_t)(intptr_t)l1 > (MirrTopoHash_t)(intptr_t)l2 ) return 1;
else if ((MirrTopoHash_t)(intptr_t)l1 < (MirrTopoHash_t)(intptr_t)l2 ) return -1;
return 0;
}
static int MirrTopo_item_sort(const void *v1, const void *v2)
static int mirrtopo_vert_sort(const void *v1, const void *v2)
{
if (((MirrTopoPair_t *)v1)->hash > ((MirrTopoPair_t *)v2)->hash ) return 1;
else if (((MirrTopoPair_t *)v1)->hash < ((MirrTopoPair_t *)v2)->hash ) return -1;
if (((MirrTopoVert_t *)v1)->hash > ((MirrTopoVert_t *)v2)->hash ) return 1;
else if (((MirrTopoVert_t *)v1)->hash < ((MirrTopoVert_t *)v2)->hash ) return -1;
return 0;
}
@ -848,12 +848,12 @@ int ED_mesh_mirrtopo_recalc_check(Mesh *me, const int ob_mode, MirrTopoStore_t *
int totedge;
if (me->edit_mesh) {
totvert= me->edit_mesh->totvert;
totedge= me->edit_mesh->totedge;
totvert = me->edit_mesh->totvert;
totedge = me->edit_mesh->totedge;
}
else {
totvert= me->totvert;
totedge= me->totedge;
totvert = me->totvert;
totedge = me->totedge;
}
if( (mesh_topo_store->index_lookup==NULL) ||
@ -869,33 +869,36 @@ int ED_mesh_mirrtopo_recalc_check(Mesh *me, const int ob_mode, MirrTopoStore_t *
}
void ED_mesh_mirrtopo_init(Mesh *me, const int ob_mode, MirrTopoStore_t *mesh_topo_store)
void ED_mesh_mirrtopo_init(Mesh *me, const int ob_mode, MirrTopoStore_t *mesh_topo_store,
const short skip_em_vert_array_init)
{
MEdge *medge;
EditMesh *em= me->edit_mesh;
void **eve_tmp_back= NULL; /* some of the callers are using eve->tmp so restore after */
EditMesh *em = me->edit_mesh;
void **eve_tmp_back = NULL; /* some of the callers are using eve->tmp so restore after */
/* editmode*/
EditEdge *eed;
int a, last;
int totvert, totedge;
int totUnique= -1, totUniqueOld= -1;
int tot_unique = -1, tot_unique_prev = -1;
MirrTopoHash_t *MirrTopoHash = NULL;
MirrTopoHash_t *MirrTopoHash_Prev = NULL;
MirrTopoPair_t *MirrTopoPairs;
MirrTopoHash_t *topo_hash = NULL;
MirrTopoHash_t *topo_hash_prev = NULL;
MirrTopoVert_t *topo_pairs;
intptr_t *index_lookup; /* direct access to mesh_topo_store->index_lookup */
/* reallocate if needed */
ED_mesh_mirrtopo_free(mesh_topo_store);
mesh_topo_store->prev_ob_mode= ob_mode;
mesh_topo_store->prev_ob_mode = ob_mode;
if(em) {
EditVert *eve;
totvert= 0;
eve_tmp_back= MEM_callocN( em->totvert * sizeof(void *), "TopoMirr" );
for(eve= em->verts.first; eve; eve= eve->next) {
totvert = 0;
eve_tmp_back = MEM_mallocN(em->totvert * sizeof(void *), "TopoMirr");
for(eve = em->verts.first; eve; eve = eve->next) {
eve_tmp_back[totvert]= eve->tmp.p;
eve->tmp.l = totvert++;
}
@ -904,130 +907,139 @@ void ED_mesh_mirrtopo_init(Mesh *me, const int ob_mode, MirrTopoStore_t *mesh_to
totvert = me->totvert;
}
MirrTopoHash = MEM_callocN( totvert * sizeof(MirrTopoHash_t), "TopoMirr" );
topo_hash = MEM_callocN(totvert * sizeof(MirrTopoHash_t), "TopoMirr");
/* Initialize the vert-edge-user counts used to detect unique topology */
if(em) {
totedge= 0;
totedge = 0;
for(eed=em->edges.first; eed; eed= eed->next, totedge++) {
MirrTopoHash[eed->v1->tmp.l]++;
MirrTopoHash[eed->v2->tmp.l]++;
for(eed=em->edges.first; eed; eed = eed->next, totedge++) {
topo_hash[eed->v1->tmp.l]++;
topo_hash[eed->v2->tmp.l]++;
}
} else {
totedge= me->totedge;
}
else {
totedge = me->totedge;
for(a=0, medge=me->medge; a < me->totedge; a++, medge++) {
MirrTopoHash[medge->v1]++;
MirrTopoHash[medge->v2]++;
topo_hash[medge->v1]++;
topo_hash[medge->v2]++;
}
}
MirrTopoHash_Prev = MEM_dupallocN( MirrTopoHash );
topo_hash_prev = MEM_dupallocN(topo_hash);
totUniqueOld = -1;
tot_unique_prev = -1;
while(1) {
/* use the number of edges per vert to give verts unique topology IDs */
if(em) {
for(eed=em->edges.first; eed; eed= eed->next) {
MirrTopoHash[eed->v1->tmp.l] += MirrTopoHash_Prev[eed->v2->tmp.l];
MirrTopoHash[eed->v2->tmp.l] += MirrTopoHash_Prev[eed->v1->tmp.l];
for(eed=em->edges.first; eed; eed = eed->next) {
topo_hash[eed->v1->tmp.l] += topo_hash_prev[eed->v2->tmp.l];
topo_hash[eed->v2->tmp.l] += topo_hash_prev[eed->v1->tmp.l];
}
} else {
}
else {
for(a=0, medge=me->medge; a<me->totedge; a++, medge++) {
/* This can make really big numbers, wrapping around here is fine */
MirrTopoHash[medge->v1] += MirrTopoHash_Prev[medge->v2];
MirrTopoHash[medge->v2] += MirrTopoHash_Prev[medge->v1];
topo_hash[medge->v1] += topo_hash_prev[medge->v2];
topo_hash[medge->v2] += topo_hash_prev[medge->v1];
}
}
memcpy(MirrTopoHash_Prev, MirrTopoHash, sizeof(MirrTopoHash_t) * totvert);
memcpy(topo_hash_prev, topo_hash, sizeof(MirrTopoHash_t) * totvert);
/* sort so we can count unique values */
qsort(MirrTopoHash_Prev, totvert, sizeof(MirrTopoHash_t), MirrTopo_long_sort);
qsort(topo_hash_prev, totvert, sizeof(MirrTopoHash_t), mirrtopo_hash_sort);
totUnique = 1; /* account for skiping the first value */
tot_unique = 1; /* account for skiping the first value */
for(a=1; a<totvert; a++) {
if (MirrTopoHash_Prev[a-1] != MirrTopoHash_Prev[a]) {
totUnique++;
if (topo_hash_prev[a-1] != topo_hash_prev[a]) {
tot_unique++;
}
}
if (totUnique <= totUniqueOld) {
if (tot_unique <= tot_unique_prev) {
/* Finish searching for unique valus when 1 loop dosnt give a
* higher number of unique values compared to the previous loop */
break;
} else {
totUniqueOld = totUnique;
}
else {
tot_unique_prev = tot_unique;
}
/* Copy the hash calculated this iter, so we can use them next time */
memcpy(MirrTopoHash_Prev, MirrTopoHash, sizeof(MirrTopoHash_t) * totvert);
memcpy(topo_hash_prev, topo_hash, sizeof(MirrTopoHash_t) * totvert);
}
/* restore eve->tmp.* */
if(eve_tmp_back) {
EditVert *eve;
totvert= 0;
for(eve= em->verts.first; eve; eve= eve->next) {
eve->tmp.p= eve_tmp_back[totvert++];
totvert = 0;
for(eve = em->verts.first; eve; eve = eve->next) {
eve->tmp.p = eve_tmp_back[totvert++];
}
MEM_freeN(eve_tmp_back);
eve_tmp_back= NULL;
eve_tmp_back = NULL;
}
/* Hash/Index pairs are needed for sorting to find index pairs */
MirrTopoPairs= MEM_callocN( sizeof(MirrTopoPair_t) * totvert, "MirrTopoPairs");
topo_pairs = MEM_callocN( sizeof(MirrTopoVert_t) * totvert, "MirrTopoPairs");
/* since we are looping through verts, initialize these values here too */
mesh_topo_store->index_lookup = MEM_mallocN( totvert * sizeof(long), "mesh_topo_lookup" );
index_lookup = MEM_mallocN(totvert * sizeof(*index_lookup), "mesh_topo_lookup");
if(em) {
EM_init_index_arrays(em,1,0,0);
if (skip_em_vert_array_init == FALSE) {
EM_init_index_arrays(em, 1, 0, 0);
}
}
for(a=0; a<totvert; a++) {
MirrTopoPairs[a].hash= MirrTopoHash[a];
MirrTopoPairs[a].v_index = a;
topo_pairs[a].hash = topo_hash[a];
topo_pairs[a].v_index = a;
/* initialize lookup */
mesh_topo_store->index_lookup[a] = -1;
index_lookup[a] = -1;
}
qsort(MirrTopoPairs, totvert, sizeof(MirrTopoPair_t), MirrTopo_item_sort);
qsort(topo_pairs, totvert, sizeof(MirrTopoVert_t), mirrtopo_vert_sort);
/* Since the loop starts at 2, we must define the last index where the hash's differ */
last = ((totvert >= 2) && (MirrTopoPairs[0].hash == MirrTopoPairs[1].hash)) ? 0 : 1;
last = ((totvert >= 2) && (topo_pairs[0].hash == topo_pairs[1].hash)) ? 0 : 1;
/* Get the pairs out of the sorted hashes, note, totvert+1 means we can use the previous 2,
* but you cant ever access the last 'a' index of MirrTopoPairs */
for(a=2; a <= totvert; a++) {
/* printf("I %d %ld %d\n", (a-last), MirrTopoPairs[a ].hash, MirrTopoPairs[a ].vIndex ); */
if ((a==totvert) || (MirrTopoPairs[a-1].hash != MirrTopoPairs[a].hash)) {
if ((a==totvert) || (topo_pairs[a-1].hash != topo_pairs[a].hash)) {
if (a-last==2) {
if(em) {
mesh_topo_store->index_lookup[MirrTopoPairs[a-1].v_index] = (intptr_t)EM_get_vert_for_index(MirrTopoPairs[a-2].v_index);
mesh_topo_store->index_lookup[MirrTopoPairs[a-2].v_index] = (intptr_t)EM_get_vert_for_index(MirrTopoPairs[a-1].v_index);
} else {
mesh_topo_store->index_lookup[MirrTopoPairs[a-1].v_index] = MirrTopoPairs[a-2].v_index;
mesh_topo_store->index_lookup[MirrTopoPairs[a-2].v_index] = MirrTopoPairs[a-1].v_index;
index_lookup[topo_pairs[a-1].v_index] = (intptr_t)EM_get_vert_for_index(topo_pairs[a-2].v_index);
index_lookup[topo_pairs[a-2].v_index] = (intptr_t)EM_get_vert_for_index(topo_pairs[a-1].v_index);
}
else {
index_lookup[topo_pairs[a-1].v_index] = topo_pairs[a-2].v_index;
index_lookup[topo_pairs[a-2].v_index] = topo_pairs[a-1].v_index;
}
}
last= a;
last = a;
}
}
if(em) {
EM_free_index_arrays();
if (skip_em_vert_array_init == FALSE) {
EM_free_index_arrays();
}
}
MEM_freeN( MirrTopoPairs );
MirrTopoPairs = NULL;
MEM_freeN(topo_pairs);
topo_pairs = NULL;
MEM_freeN( MirrTopoHash );
MEM_freeN( MirrTopoHash_Prev );
MEM_freeN(topo_hash);
MEM_freeN(topo_hash_prev);
mesh_topo_store->index_lookup = index_lookup;
mesh_topo_store->prev_vert_tot = totvert;
mesh_topo_store->prev_edge_tot = totedge;
}

2
source/blender/editors/mesh/meshtools.c
View File

@ -861,7 +861,7 @@ int mesh_mirrtopo_table(Object *ob, char mode)
}
}
else if(mode=='s') { /* start table */
ED_mesh_mirrtopo_init(ob->data, ob->mode, &mesh_topo_store);
ED_mesh_mirrtopo_init(ob->data, ob->mode, &mesh_topo_store, FALSE);
}
else if(mode=='e') { /* end table */
ED_mesh_mirrtopo_free(&mesh_topo_store);