diff options
Diffstat (limited to 'source/blender/blenkernel/intern/outliner_treehash.c')
| -rw-r--r-- | source/blender/blenkernel/intern/outliner_treehash.c | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/source/blender/blenkernel/intern/outliner_treehash.c b/source/blender/blenkernel/intern/outliner_treehash.c index 9db9b2ddf54..9bbde607b80 100644 --- a/source/blender/blenkernel/intern/outliner_treehash.c +++ b/source/blender/blenkernel/intern/outliner_treehash.c @@ -27,6 +27,7 @@ */ #include <stdlib.h> +#include <string.h> #include "BLI_utildefines.h" #include "BLI_ghash.h" @@ -56,7 +57,7 @@ static TseGroup *tse_group_create(void) return tse_group; } -static void tse_group_add(TseGroup *tse_group, TreeStoreElem *elem) +static void tse_group_add_element(TseGroup *tse_group, TreeStoreElem *elem) { if (UNLIKELY(tse_group->size == tse_group->allocated)) { tse_group->allocated *= 2; @@ -66,6 +67,26 @@ static void tse_group_add(TseGroup *tse_group, TreeStoreElem *elem) tse_group->size++; } +static void tse_group_remove_element(TseGroup *tse_group, TreeStoreElem *elem) +{ + int min_allocated = MAX2(1, tse_group->allocated / 2); + BLI_assert(tse_group->allocated == 1 || (tse_group->allocated % 2) == 0); + + tse_group->size--; + BLI_assert(tse_group->size >= 0); + for (int i = 0; i < tse_group->size; i++) { + if (tse_group->elems[i] == elem) { + memcpy(tse_group->elems[i], tse_group->elems[i + 1], (tse_group->size - (i + 1)) * sizeof(TreeStoreElem *)); + break; + } + } + + if (UNLIKELY(tse_group->size > 0 && tse_group->size <= min_allocated)) { + tse_group->allocated = min_allocated; + tse_group->elems = MEM_reallocN(tse_group->elems, sizeof(TreeStoreElem *) * tse_group->allocated); + } +} + static void tse_group_free(TseGroup *tse_group) { MEM_freeN(tse_group->elems); @@ -140,7 +161,21 @@ void BKE_outliner_treehash_add_element(void *treehash, TreeStoreElem *elem) *val_p = tse_group_create(); } group = *val_p; - tse_group_add(group, elem); + tse_group_add_element(group, elem); +} + +void BKE_outliner_treehash_remove_element(void *treehash, TreeStoreElem *elem) +{ + TseGroup *group = BLI_ghash_lookup(treehash, elem); + + BLI_assert(group != NULL); + if (group->size <= 1) { + /* one element -> remove group completely */ + BLI_ghash_remove(treehash, elem, NULL, free_treehash_group); + } + else { + tse_group_remove_element(group, elem); + } } static TseGroup *BKE_outliner_treehash_lookup_group(GHash *th, short type, short nr, struct ID *id) |