bmesh: optimize iterator size using a union for iterator specific data.

on 64bit system reduces the struct to 64bytes, was 120, also avoids initializing unused values.
This commit is contained in:
Campbell Barton 2013-05-25 09:46:28 +00:00
parent e63ab3505f
commit 78c35c7720
3 changed files with 262 additions and 227 deletions

@ -286,21 +286,6 @@ int BM_iter_mesh_count_flag(const char itype, BMesh *bm, const char hflag, const
return count;
}
/**
* \brief Init Iterator
*
* Clears the internal state of an iterator for begin() callbacks.
*/
static void init_iterator(BMIter *iter)
{
// iter->v_first = iter->v_next = NULL; // UNUSED
iter->e_first = iter->e_next = NULL;
iter->l_first = iter->l_next = NULL;
// iter->f_first = iter->f_next = NULL; // UNUSED
iter->ldata = NULL;
}
/**
* Notes on iterator implementation:
*
@ -319,88 +304,90 @@ static void init_iterator(BMIter *iter)
* VERT OF MESH CALLBACKS
*/
void bmiter__vert_of_mesh_begin(BMIter *iter)
void bmiter__vert_of_mesh_begin(struct BMIter__vert_of_mesh *iter)
{
BLI_mempool_iternew(iter->bm->vpool, &iter->pooliter);
}
void *bmiter__vert_of_mesh_step(BMIter *iter)
void *bmiter__vert_of_mesh_step(struct BMIter__vert_of_mesh *iter)
{
return BLI_mempool_iterstep(&iter->pooliter);
}
void bmiter__edge_of_mesh_begin(BMIter *iter)
void bmiter__edge_of_mesh_begin(struct BMIter__edge_of_mesh *iter)
{
BLI_mempool_iternew(iter->bm->epool, &iter->pooliter);
iter->count = iter->bm->totedge; /* */
}
void *bmiter__edge_of_mesh_step(BMIter *iter)
void *bmiter__edge_of_mesh_step(struct BMIter__edge_of_mesh *iter)
{
return BLI_mempool_iterstep(&iter->pooliter);
}
void bmiter__face_of_mesh_begin(BMIter *iter)
void bmiter__face_of_mesh_begin(struct BMIter__face_of_mesh *iter)
{
BLI_mempool_iternew(iter->bm->fpool, &iter->pooliter);
}
void *bmiter__face_of_mesh_step(BMIter *iter)
void *bmiter__face_of_mesh_step(struct BMIter__face_of_mesh *iter)
{
return BLI_mempool_iterstep(&iter->pooliter);
}
/*
* EDGE OF VERT CALLBACKS
*/
void bmiter__edge_of_vert_begin(BMIter *iter)
void bmiter__edge_of_vert_begin(struct BMIter__edge_of_vert *iter)
{
init_iterator(iter);
if (iter->vdata->e) {
iter->e_first = iter->vdata->e;
iter->e_next = iter->vdata->e;
}
else {
iter->e_first = NULL;
iter->e_next = NULL;
}
}
void *bmiter__edge_of_vert_step(BMIter *iter)
void *bmiter__edge_of_vert_step(struct BMIter__edge_of_vert *iter)
{
BMEdge *current = iter->e_next;
BMEdge *e_curr = iter->e_next;
if (iter->e_next)
if (iter->e_next) {
iter->e_next = bmesh_disk_edge_next(iter->e_next, iter->vdata);
if (iter->e_next == iter->e_first) iter->e_next = NULL;
if (iter->e_next == iter->e_first) {
iter->e_next = NULL;
}
}
return current;
return e_curr;
}
/*
* FACE OF VERT CALLBACKS
*/
void bmiter__face_of_vert_begin(BMIter *iter)
void bmiter__face_of_vert_begin(struct BMIter__face_of_vert *iter)
{
init_iterator(iter);
iter->count = 0;
if (iter->vdata->e)
iter->count = bmesh_disk_facevert_count(iter->vdata);
if (iter->count) {
((BMIter *)iter)->count = bmesh_disk_facevert_count(iter->vdata);
if (((BMIter *)iter)->count) {
iter->e_first = bmesh_disk_faceedge_find_first(iter->vdata->e, iter->vdata);
iter->e_next = iter->e_first;
iter->l_first = bmesh_radial_faceloop_find_first(iter->e_first->l, iter->vdata);
iter->l_next = iter->l_first;
}
else {
iter->l_first = iter->l_next = NULL;
iter->e_first = iter->e_next = NULL;
}
}
void *bmiter__face_of_vert_step(BMIter *iter)
void *bmiter__face_of_vert_step(struct BMIter__face_of_vert *iter)
{
BMLoop *current = iter->l_next;
BMLoop *l_curr = iter->l_next;
if (iter->count && iter->l_next) {
iter->count--;
if (((BMIter *)iter)->count && iter->l_next) {
((BMIter *)iter)->count--;
iter->l_next = bmesh_radial_faceloop_find_next(iter->l_next, iter->vdata);
if (iter->l_next == iter->l_first) {
iter->e_next = bmesh_disk_faceedge_find_next(iter->e_next, iter->vdata);
@ -409,9 +396,11 @@ void *bmiter__face_of_vert_step(BMIter *iter)
}
}
if (!iter->count) iter->l_next = NULL;
if (!((BMIter *)iter)->count) {
iter->l_next = NULL;
}
return current ? current->f : NULL;
return l_curr ? l_curr->f : NULL;
}
@ -420,25 +409,26 @@ void *bmiter__face_of_vert_step(BMIter *iter)
*
*/
void bmiter__loop_of_vert_begin(BMIter *iter)
void bmiter__loop_of_vert_begin(struct BMIter__loop_of_vert *iter)
{
init_iterator(iter);
iter->count = 0;
if (iter->vdata->e)
iter->count = bmesh_disk_facevert_count(iter->vdata);
if (iter->count) {
((BMIter *)iter)->count = bmesh_disk_facevert_count(iter->vdata);
if (((BMIter *)iter)->count) {
iter->e_first = bmesh_disk_faceedge_find_first(iter->vdata->e, iter->vdata);
iter->e_next = iter->e_first;
iter->l_first = bmesh_radial_faceloop_find_first(iter->e_first->l, iter->vdata);
iter->l_next = iter->l_first;
}
else {
iter->l_first = iter->l_next = NULL;
iter->e_first = iter->e_next = NULL;
}
}
void *bmiter__loop_of_vert_step(BMIter *iter)
void *bmiter__loop_of_vert_step(struct BMIter__loop_of_vert *iter)
{
BMLoop *current = iter->l_next;
BMLoop *l_curr = iter->l_next;
if (iter->count) {
iter->count--;
if (((BMIter *)iter)->count) {
((BMIter *)iter)->count--;
iter->l_next = bmesh_radial_faceloop_find_next(iter->l_next, iter->vdata);
if (iter->l_next == iter->l_first) {
iter->e_next = bmesh_disk_faceedge_find_next(iter->e_next, iter->vdata);
@ -447,107 +437,86 @@ void *bmiter__loop_of_vert_step(BMIter *iter)
}
}
if (!iter->count) iter->l_next = NULL;
if (current) {
return current;
}
return NULL;
}
void bmiter__loops_of_edge_begin(BMIter *iter)
{
BMLoop *l;
l = iter->edata->l;
/* note sure why this sets ldata ... */
init_iterator(iter);
iter->l_first = iter->l_next = l;
}
void *bmiter__loops_of_edge_step(BMIter *iter)
{
BMLoop *current = iter->l_next;
if (iter->l_next) {
iter->l_next = iter->l_next->radial_next;
}
if (iter->l_next == iter->l_first) {
if (!((BMIter *)iter)->count) {
iter->l_next = NULL;
}
if (current) {
return current;
}
return NULL;
/* NULL on finish */
return l_curr;
}
void bmiter__loops_of_loop_begin(BMIter *iter)
/*
* LOOP OF EDGE CALLBACKS
*/
void bmiter__loop_of_edge_begin(struct BMIter__loop_of_edge *iter)
{
BMLoop *l;
iter->l_first = iter->l_next = iter->edata->l;
}
l = iter->ldata;
void *bmiter__loop_of_edge_step(struct BMIter__loop_of_edge *iter)
{
BMLoop *l_curr = iter->l_next;
/* note sure why this sets ldata ... */
init_iterator(iter);
if (iter->l_next) {
iter->l_next = iter->l_next->radial_next;
if (iter->l_next == iter->l_first) {
iter->l_next = NULL;
}
}
iter->l_first = l;
/* NULL on finish */
return l_curr;
}
/*
* LOOP OF LOOP CALLBACKS
*/
void bmiter__loop_of_loop_begin(struct BMIter__loop_of_loop *iter)
{
iter->l_first = iter->ldata;
iter->l_next = iter->l_first->radial_next;
if (iter->l_next == iter->l_first)
iter->l_next = NULL;
}
void *bmiter__loops_of_loop_step(BMIter *iter)
void *bmiter__loop_of_loop_step(struct BMIter__loop_of_loop *iter)
{
BMLoop *current = iter->l_next;
BMLoop *l_curr = iter->l_next;
if (iter->l_next) {
iter->l_next = iter->l_next->radial_next;
if (iter->l_next == iter->l_first) {
iter->l_next = NULL;
}
}
if (iter->l_next == iter->l_first) {
iter->l_next = NULL;
}
if (current) {
return current;
}
return NULL;
/* NULL on finish */
return l_curr;
}
/*
* FACE OF EDGE CALLBACKS
*/
void bmiter__face_of_edge_begin(BMIter *iter)
void bmiter__face_of_edge_begin(struct BMIter__face_of_edge *iter)
{
init_iterator(iter);
if (iter->edata->l) {
iter->l_first = iter->edata->l;
iter->l_next = iter->edata->l;
}
iter->l_first = iter->l_next = iter->edata->l;
}
void *bmiter__face_of_edge_step(BMIter *iter)
void *bmiter__face_of_edge_step(struct BMIter__face_of_edge *iter)
{
BMLoop *current = iter->l_next;
if (iter->l_next) {
iter->l_next = iter->l_next->radial_next;
if (iter->l_next == iter->l_first) {
iter->l_next = NULL;
}
}
if (iter->l_next == iter->l_first) iter->l_next = NULL;
return current ? current->f : NULL;
}
@ -555,19 +524,17 @@ void *bmiter__face_of_edge_step(BMIter *iter)
* VERTS OF EDGE CALLBACKS
*/
void bmiter__vert_of_edge_begin(BMIter *iter)
void bmiter__vert_of_edge_begin(struct BMIter__vert_of_edge *iter)
{
init_iterator(iter);
iter->count = 0;
((BMIter *)iter)->count = 0;
}
void *bmiter__vert_of_edge_step(BMIter *iter)
void *bmiter__vert_of_edge_step(struct BMIter__vert_of_edge *iter)
{
iter->count++;
switch (iter->count) {
case 1:
switch (((BMIter *)iter)->count++) {
case 0:
return iter->edata->v1;
case 2:
case 1:
return iter->edata->v2;
default:
return NULL;
@ -578,58 +545,67 @@ void *bmiter__vert_of_edge_step(BMIter *iter)
* VERT OF FACE CALLBACKS
*/
void bmiter__vert_of_face_begin(BMIter *iter)
void bmiter__vert_of_face_begin(struct BMIter__vert_of_face *iter)
{
init_iterator(iter);
iter->l_first = iter->l_next = BM_FACE_FIRST_LOOP(iter->pdata);
}
void *bmiter__vert_of_face_step(BMIter *iter)
void *bmiter__vert_of_face_step(struct BMIter__vert_of_face *iter)
{
BMLoop *current = iter->l_next;
BMLoop *l_curr = iter->l_next;
if (iter->l_next) iter->l_next = iter->l_next->next;
if (iter->l_next == iter->l_first) iter->l_next = NULL;
if (iter->l_next) {
iter->l_next = iter->l_next->next;
if (iter->l_next == iter->l_first) {
iter->l_next = NULL;
}
}
return current ? current->v : NULL;
return l_curr ? l_curr->v : NULL;
}
/*
* EDGE OF FACE CALLBACKS
*/
void bmiter__edge_of_face_begin(BMIter *iter)
void bmiter__edge_of_face_begin(struct BMIter__edge_of_face *iter)
{
init_iterator(iter);
iter->l_first = iter->l_next = BM_FACE_FIRST_LOOP(iter->pdata);
}
void *bmiter__edge_of_face_step(BMIter *iter)
void *bmiter__edge_of_face_step(struct BMIter__edge_of_face *iter)
{
BMLoop *current = iter->l_next;
BMLoop *l_curr = iter->l_next;
if (iter->l_next) iter->l_next = iter->l_next->next;
if (iter->l_next == iter->l_first) iter->l_next = NULL;
if (iter->l_next) {
iter->l_next = iter->l_next->next;
if (iter->l_next == iter->l_first) {
iter->l_next = NULL;
}
}
return current ? current->e : NULL;
return l_curr ? l_curr->e : NULL;
}
/*
* LOOP OF FACE CALLBACKS
*/
void bmiter__loop_of_face_begin(BMIter *iter)
void bmiter__loop_of_face_begin(struct BMIter__loop_of_face *iter)
{
init_iterator(iter);
iter->l_first = iter->l_next = BM_FACE_FIRST_LOOP(iter->pdata);
}
void *bmiter__loop_of_face_step(BMIter *iter)
void *bmiter__loop_of_face_step(struct BMIter__loop_of_face *iter)
{
BMLoop *current = iter->l_next;
BMLoop *l_curr = iter->l_next;
if (iter->l_next) iter->l_next = iter->l_next->next;
if (iter->l_next == iter->l_first) iter->l_next = NULL;
if (iter->l_next) {
iter->l_next = iter->l_next->next;
if (iter->l_next == iter->l_first) {
iter->l_next = NULL;
}
}
return current;
return l_curr;
}

@ -94,27 +94,89 @@ extern const char bm_iter_itype_htype_map[BM_ITYPE_MAX];
#define BM_ITER_ELEM_INDEX(ele, iter, data, itype, indexvar) \
for (ele = BM_iter_new(iter, NULL, itype, data), indexvar = 0; ele; ele = BM_iter_step(iter), (indexvar)++)
/* iterator type structs */
struct BMIter__vert_of_mesh {
BMesh *bm;
BLI_mempool_iter pooliter;
};
struct BMIter__edge_of_mesh {
BMesh *bm;
BLI_mempool_iter pooliter;
};
struct BMIter__face_of_mesh {
BMesh *bm;
BLI_mempool_iter pooliter;
};
struct BMIter__edge_of_vert {
BMVert *vdata;
BMEdge *e_first, *e_next;
};
struct BMIter__face_of_vert {
BMVert *vdata;
BMLoop *l_first, *l_next;
BMEdge *e_first, *e_next;
};
struct BMIter__loop_of_vert {
BMVert *vdata;
BMLoop *l_first, *l_next;
BMEdge *e_first, *e_next;
};
struct BMIter__loop_of_edge {
BMEdge *edata;
BMLoop *l_first, *l_next;
};
struct BMIter__loop_of_loop {
BMLoop *ldata;
BMLoop *l_first, *l_next;
};
struct BMIter__face_of_edge {
BMEdge *edata;
BMLoop *l_first, *l_next;
};
struct BMIter__vert_of_edge {
BMEdge *edata;
};
struct BMIter__vert_of_face {
BMFace *pdata;
BMLoop *l_first, *l_next;
};
struct BMIter__edge_of_face {
BMFace *pdata;
BMLoop *l_first, *l_next;
};
struct BMIter__loop_of_face {
BMFace *pdata;
BMLoop *l_first, *l_next;
};
typedef void (*BMIter__begin_cb) (void *);
typedef void *(*BMIter__step_cb) (void *);
/* Iterator Structure */
/* note: some of these vars are not used,
* so they have beem commented to save stack space since this struct is used all over */
typedef struct BMIter {
BLI_mempool_iter pooliter;
BMVert /* *v_first, *v_next, */ *vdata;
BMEdge *e_first, *e_next, *edata;
BMLoop *l_first, *l_next, *ldata;
BMFace /* *f_first, *f_next, */ *pdata;
BMesh *bm;
void (*begin)(struct BMIter *iter);
void *(*step)(struct BMIter *iter);
#if 0
/* keep union first */
union {
void *p;
int i;
long l;
float f;
} filter;
#endif
struct BMIter__vert_of_mesh vert_of_mesh;
struct BMIter__edge_of_mesh edge_of_mesh;
struct BMIter__face_of_mesh face_of_mesh;
struct BMIter__edge_of_vert edge_of_vert;
struct BMIter__face_of_vert face_of_vert;
struct BMIter__loop_of_vert loop_of_vert;
struct BMIter__loop_of_edge loop_of_edge;
struct BMIter__loop_of_loop loop_of_loop;
struct BMIter__face_of_edge face_of_edge;
struct BMIter__vert_of_edge vert_of_edge;
struct BMIter__vert_of_face vert_of_face;
struct BMIter__edge_of_face edge_of_face;
struct BMIter__loop_of_face loop_of_face;
} data;
BMIter__begin_cb begin;
BMIter__step_cb step;
int count; /* note, only some iterators set this, don't rely on it */
char itype;
} BMIter;
@ -143,32 +205,27 @@ int BMO_iter_elem_count_flag(BMesh *bm, const char itype, void *data, const
int BM_iter_mesh_count_flag(const char itype, BMesh *bm, const char hflag, const bool value);
/* private for bmesh_iterators_inline.c */
void bmiter__vert_of_mesh_begin(struct BMIter *iter);
void *bmiter__vert_of_mesh_step(struct BMIter *iter);
void bmiter__edge_of_mesh_begin(struct BMIter *iter);
void *bmiter__edge_of_mesh_step(struct BMIter *iter);
void bmiter__face_of_mesh_begin(struct BMIter *iter);
void *bmiter__face_of_mesh_step(struct BMIter *iter);
void bmiter__edge_of_vert_begin(struct BMIter *iter);
void *bmiter__edge_of_vert_step(struct BMIter *iter);
void bmiter__face_of_vert_begin(struct BMIter *iter);
void *bmiter__face_of_vert_step(struct BMIter *iter);
void bmiter__loop_of_vert_begin(struct BMIter *iter);
void *bmiter__loop_of_vert_step(struct BMIter *iter);
void bmiter__loops_of_edge_begin(struct BMIter *iter);
void *bmiter__loops_of_edge_step(struct BMIter *iter);
void bmiter__loops_of_loop_begin(struct BMIter *iter);
void *bmiter__loops_of_loop_step(struct BMIter *iter);
void bmiter__face_of_edge_begin(struct BMIter *iter);
void *bmiter__face_of_edge_step(struct BMIter *iter);
void bmiter__vert_of_edge_begin(struct BMIter *iter);
void *bmiter__vert_of_edge_step(struct BMIter *iter);
void bmiter__vert_of_face_begin(struct BMIter *iter);
void *bmiter__vert_of_face_step(struct BMIter *iter);
void bmiter__edge_of_face_begin(struct BMIter *iter);
void *bmiter__edge_of_face_step(struct BMIter *iter);
void bmiter__loop_of_face_begin(struct BMIter *iter);
void *bmiter__loop_of_face_step(struct BMIter *iter);
#define BMITER_CB_DEF(name) \
struct BMIter__##name; \
void bmiter__##name##_begin(struct BMIter__##name *iter); \
void *bmiter__##name##_step(struct BMIter__##name *iter)
BMITER_CB_DEF(vert_of_mesh);
BMITER_CB_DEF(edge_of_mesh);
BMITER_CB_DEF(face_of_mesh);
BMITER_CB_DEF(edge_of_vert);
BMITER_CB_DEF(face_of_vert);
BMITER_CB_DEF(loop_of_vert);
BMITER_CB_DEF(loop_of_edge);
BMITER_CB_DEF(loop_of_loop);
BMITER_CB_DEF(face_of_edge);
BMITER_CB_DEF(vert_of_edge);
BMITER_CB_DEF(vert_of_face);
BMITER_CB_DEF(edge_of_face);
BMITER_CB_DEF(loop_of_face);
#undef BMITER_CB_DEF
#include "intern/bmesh_iterators_inline.h"

@ -54,87 +54,89 @@ BLI_INLINE bool BM_iter_init(BMIter *iter, BMesh *bm, const char itype, void *da
{
/* int argtype; */
iter->itype = itype;
iter->bm = bm;
/* inlining optimizes out this switch when called with the defined type */
switch ((BMIterType)itype) {
case BM_VERTS_OF_MESH:
BLI_assert(bm != NULL);
BLI_assert(data == NULL);
iter->begin = bmiter__vert_of_mesh_begin;
iter->step = bmiter__vert_of_mesh_step;
iter->begin = (BMIter__begin_cb)bmiter__vert_of_mesh_begin;
iter->step = (BMIter__step_cb)bmiter__vert_of_mesh_step;
iter->data.vert_of_mesh.bm = bm;
break;
case BM_EDGES_OF_MESH:
BLI_assert(bm != NULL);
BLI_assert(data == NULL);
iter->begin = bmiter__edge_of_mesh_begin;
iter->step = bmiter__edge_of_mesh_step;
iter->begin = (BMIter__begin_cb)bmiter__edge_of_mesh_begin;
iter->step = (BMIter__step_cb)bmiter__edge_of_mesh_step;
iter->data.edge_of_mesh.bm = bm;
break;
case BM_FACES_OF_MESH:
BLI_assert(bm != NULL);
BLI_assert(data == NULL);
iter->begin = bmiter__face_of_mesh_begin;
iter->step = bmiter__face_of_mesh_step;
iter->begin = (BMIter__begin_cb)bmiter__face_of_mesh_begin;
iter->step = (BMIter__step_cb)bmiter__face_of_mesh_step;
iter->data.face_of_mesh.bm = bm;
break;
case BM_EDGES_OF_VERT:
BLI_assert(data != NULL);
iter->begin = bmiter__edge_of_vert_begin;
iter->step = bmiter__edge_of_vert_step;
iter->vdata = (BMVert *)data;
iter->begin = (BMIter__begin_cb)bmiter__edge_of_vert_begin;
iter->step = (BMIter__step_cb)bmiter__edge_of_vert_step;
iter->data.edge_of_vert.vdata = (BMVert *)data;
break;
case BM_FACES_OF_VERT:
BLI_assert(data != NULL);
iter->begin = bmiter__face_of_vert_begin;
iter->step = bmiter__face_of_vert_step;
iter->vdata = (BMVert *)data;
iter->begin = (BMIter__begin_cb)bmiter__face_of_vert_begin;
iter->step = (BMIter__step_cb)bmiter__face_of_vert_step;
iter->data.face_of_vert.vdata = (BMVert *)data;
break;
case BM_LOOPS_OF_VERT:
BLI_assert(data != NULL);
iter->begin = bmiter__loop_of_vert_begin;
iter->step = bmiter__loop_of_vert_step;
iter->vdata = (BMVert *)data;
iter->begin = (BMIter__begin_cb)bmiter__loop_of_vert_begin;
iter->step = (BMIter__step_cb)bmiter__loop_of_vert_step;
iter->data.loop_of_vert.vdata = (BMVert *)data;
break;
case BM_VERTS_OF_EDGE:
BLI_assert(data != NULL);
iter->begin = bmiter__vert_of_edge_begin;
iter->step = bmiter__vert_of_edge_step;
iter->edata = (BMEdge *)data;
iter->begin = (BMIter__begin_cb)bmiter__vert_of_edge_begin;
iter->step = (BMIter__step_cb)bmiter__vert_of_edge_step;
iter->data.vert_of_edge.edata = (BMEdge *)data;
break;
case BM_FACES_OF_EDGE:
BLI_assert(data != NULL);
iter->begin = bmiter__face_of_edge_begin;
iter->step = bmiter__face_of_edge_step;
iter->edata = (BMEdge *)data;
iter->begin = (BMIter__begin_cb)bmiter__face_of_edge_begin;
iter->step = (BMIter__step_cb)bmiter__face_of_edge_step;
iter->data.face_of_edge.edata = (BMEdge *)data;
break;
case BM_VERTS_OF_FACE:
BLI_assert(data != NULL);
iter->begin = bmiter__vert_of_face_begin;
iter->step = bmiter__vert_of_face_step;
iter->pdata = (BMFace *)data;
iter->begin = (BMIter__begin_cb)bmiter__vert_of_face_begin;
iter->step = (BMIter__step_cb)bmiter__vert_of_face_step;
iter->data.vert_of_face.pdata = (BMFace *)data;
break;
case BM_EDGES_OF_FACE:
BLI_assert(data != NULL);
iter->begin = bmiter__edge_of_face_begin;
iter->step = bmiter__edge_of_face_step;
iter->pdata = (BMFace *)data;
iter->begin = (BMIter__begin_cb)bmiter__edge_of_face_begin;
iter->step = (BMIter__step_cb)bmiter__edge_of_face_step;
iter->data.edge_of_face.pdata = (BMFace *)data;
break;
case BM_LOOPS_OF_FACE:
BLI_assert(data != NULL);
iter->begin = bmiter__loop_of_face_begin;
iter->step = bmiter__loop_of_face_step;
iter->pdata = (BMFace *)data;
iter->begin = (BMIter__begin_cb)bmiter__loop_of_face_begin;
iter->step = (BMIter__step_cb)bmiter__loop_of_face_step;
iter->data.loop_of_face.pdata = (BMFace *)data;
break;
case BM_LOOPS_OF_LOOP:
BLI_assert(data != NULL);
iter->begin = bmiter__loops_of_loop_begin;
iter->step = bmiter__loops_of_loop_step;
iter->ldata = (BMLoop *)data;
iter->begin = (BMIter__begin_cb)bmiter__loop_of_loop_begin;
iter->step = (BMIter__step_cb)bmiter__loop_of_loop_step;
iter->data.loop_of_loop.ldata = (BMLoop *)data;
break;
case BM_LOOPS_OF_EDGE:
BLI_assert(data != NULL);
iter->begin = bmiter__loops_of_edge_begin;
iter->step = bmiter__loops_of_edge_step;
iter->edata = (BMEdge *)data;
iter->begin = (BMIter__begin_cb)bmiter__loop_of_edge_begin;
iter->step = (BMIter__step_cb)bmiter__loop_of_edge_step;
iter->data.loop_of_edge.edata = (BMEdge *)data;
break;
default:
/* should never happen */