diff options
Diffstat (limited to 'source/blender/bmesh/intern/bmesh_mesh.c')
| -rw-r--r-- | source/blender/bmesh/intern/bmesh_mesh.c | 56 |
1 files changed, 36 insertions, 20 deletions
diff --git a/source/blender/bmesh/intern/bmesh_mesh.c b/source/blender/bmesh/intern/bmesh_mesh.c index d92d0cbb469..e9fb6a28154 100644 --- a/source/blender/bmesh/intern/bmesh_mesh.c +++ b/source/blender/bmesh/intern/bmesh_mesh.c @@ -1512,23 +1512,6 @@ int BM_mesh_elem_count(BMesh *bm, const char htype) } } -/** - * Special case: Python uses custom-data layers to hold PyObject references. - * These have to be kept in-place, else the PyObject's we point to, wont point back to us. - * - * \note ``ele_src`` Is a duplicate, so we don't need to worry about getting in a feedback loop. - * - * \note If there are other customdata layers which need this functionality, it should be generalized. - * However #BM_mesh_remap is currently the only place where this is done. - */ -static void bm_mesh_remap_cd_update( - BMHeader *ele_dst, BMHeader *ele_src, - const int cd_elem_pyptr) -{ - void **pyptr_dst_p = BM_ELEM_CD_GET_VOID_P(((BMElem *)ele_dst), cd_elem_pyptr); - void **pyptr_src_p = BM_ELEM_CD_GET_VOID_P(((BMElem *)ele_src), cd_elem_pyptr); - *pyptr_dst_p = *pyptr_src_p; -} /** * Remaps the vertices, edges and/or faces of the bmesh as indicated by vert/edge/face_idx arrays @@ -1570,6 +1553,8 @@ void BM_mesh_remap( BMVert **verts_pool, *verts_copy, **vep; int i, totvert = bm->totvert; const unsigned int *new_idx; + /* Special case: Python uses custom - data layers to hold PyObject references. + * These have to be kept in - place, else the PyObject's we point to, wont point back to us. */ const int cd_vert_pyptr = CustomData_get_offset(&bm->vdata, CD_BM_ELEM_PYPTR); /* Init the old-to-new vert pointers mapping */ @@ -1578,9 +1563,14 @@ void BM_mesh_remap( /* Make a copy of all vertices. */ verts_pool = bm->vtable; verts_copy = MEM_mallocN(sizeof(BMVert) * totvert, "BM_mesh_remap verts copy"); + void **pyptrs = (cd_vert_pyptr != -1) ? MEM_mallocN(sizeof(void *) * totvert, __func__) : NULL; for (i = totvert, ve = verts_copy + totvert - 1, vep = verts_pool + totvert - 1; i--; ve--, vep--) { *ve = **vep; /* printf("*vep: %p, verts_pool[%d]: %p\n", *vep, i, verts_pool[i]);*/ + if (cd_vert_pyptr != -1) { + void **pyptr = BM_ELEM_CD_GET_VOID_P(((BMElem *)ve), cd_vert_pyptr); + pyptrs[i] = *pyptr; + } } /* Copy back verts to their new place, and update old2new pointers mapping. */ @@ -1593,13 +1583,17 @@ void BM_mesh_remap( /* printf("mapping vert from %d to %d (%p/%p to %p)\n", i, *new_idx, *vep, verts_pool[i], new_vep);*/ BLI_ghash_insert(vptr_map, *vep, new_vep); if (cd_vert_pyptr != -1) { - bm_mesh_remap_cd_update(&(*vep)->head, &new_vep->head, cd_vert_pyptr); + void **pyptr = BM_ELEM_CD_GET_VOID_P(((BMElem *)new_vep), cd_vert_pyptr); + *pyptr = pyptrs[*new_idx]; } } bm->elem_index_dirty |= BM_VERT; bm->elem_table_dirty |= BM_VERT; MEM_freeN(verts_copy); + if (pyptrs) { + MEM_freeN(pyptrs); + } } /* Remap Edges */ @@ -1607,6 +1601,8 @@ void BM_mesh_remap( BMEdge **edges_pool, *edges_copy, **edp; int i, totedge = bm->totedge; const unsigned int *new_idx; + /* Special case: Python uses custom - data layers to hold PyObject references. + * These have to be kept in - place, else the PyObject's we point to, wont point back to us. */ const int cd_edge_pyptr = CustomData_get_offset(&bm->edata, CD_BM_ELEM_PYPTR); /* Init the old-to-new vert pointers mapping */ @@ -1615,8 +1611,13 @@ void BM_mesh_remap( /* Make a copy of all vertices. */ edges_pool = bm->etable; edges_copy = MEM_mallocN(sizeof(BMEdge) * totedge, "BM_mesh_remap edges copy"); + void **pyptrs = (cd_edge_pyptr != -1) ? MEM_mallocN(sizeof(void *) * totedge, __func__) : NULL; for (i = totedge, ed = edges_copy + totedge - 1, edp = edges_pool + totedge - 1; i--; ed--, edp--) { *ed = **edp; + if (cd_edge_pyptr != -1) { + void **pyptr = BM_ELEM_CD_GET_VOID_P(((BMElem *)ed), cd_edge_pyptr); + pyptrs[i] = *pyptr; + } } /* Copy back verts to their new place, and update old2new pointers mapping. */ @@ -1629,13 +1630,17 @@ void BM_mesh_remap( BLI_ghash_insert(eptr_map, *edp, new_edp); /* printf("mapping edge from %d to %d (%p/%p to %p)\n", i, *new_idx, *edp, edges_pool[i], new_edp);*/ if (cd_edge_pyptr != -1) { - bm_mesh_remap_cd_update(&(*edp)->head, &new_edp->head, cd_edge_pyptr); + void **pyptr = BM_ELEM_CD_GET_VOID_P(((BMElem *)new_edp), cd_edge_pyptr); + *pyptr = pyptrs[*new_idx]; } } bm->elem_index_dirty |= BM_EDGE; bm->elem_table_dirty |= BM_EDGE; MEM_freeN(edges_copy); + if (pyptrs) { + MEM_freeN(pyptrs); + } } /* Remap Faces */ @@ -1643,6 +1648,8 @@ void BM_mesh_remap( BMFace **faces_pool, *faces_copy, **fap; int i, totface = bm->totface; const unsigned int *new_idx; + /* Special case: Python uses custom - data layers to hold PyObject references. + * These have to be kept in - place, else the PyObject's we point to, wont point back to us. */ const int cd_poly_pyptr = CustomData_get_offset(&bm->pdata, CD_BM_ELEM_PYPTR); /* Init the old-to-new vert pointers mapping */ @@ -1651,8 +1658,13 @@ void BM_mesh_remap( /* Make a copy of all vertices. */ faces_pool = bm->ftable; faces_copy = MEM_mallocN(sizeof(BMFace) * totface, "BM_mesh_remap faces copy"); + void **pyptrs = (cd_poly_pyptr != -1) ? MEM_mallocN(sizeof(void *) * totface, __func__) : NULL; for (i = totface, fa = faces_copy + totface - 1, fap = faces_pool + totface - 1; i--; fa--, fap--) { *fa = **fap; + if (cd_poly_pyptr != -1) { + void **pyptr = BM_ELEM_CD_GET_VOID_P(((BMElem *)fa), cd_poly_pyptr); + pyptrs[i] = *pyptr; + } } /* Copy back verts to their new place, and update old2new pointers mapping. */ @@ -1664,7 +1676,8 @@ void BM_mesh_remap( *new_fap = *fa; BLI_ghash_insert(fptr_map, *fap, new_fap); if (cd_poly_pyptr != -1) { - bm_mesh_remap_cd_update(&(*fap)->head, &new_fap->head, cd_poly_pyptr); + void **pyptr = BM_ELEM_CD_GET_VOID_P(((BMElem *)new_fap), cd_poly_pyptr); + *pyptr = pyptrs[*new_idx]; } } @@ -1672,6 +1685,9 @@ void BM_mesh_remap( bm->elem_table_dirty |= BM_FACE; MEM_freeN(faces_copy); + if (pyptrs) { + MEM_freeN(pyptrs); + } } /* And now, fix all vertices/edges/faces/loops pointers! */ |