extend BLI_buffer

- add option to calloc or not, existing code wasnt consistent here, would calloc on first alloc but not on realloc, also - the static memory was never zero'd.
  use flag BLI_BUFFER_USE_CALLOC to ensure all new memory is zero'd (static/alloc/realloc's).

- add BLI_buffer_declare_static / BLI_buffer_declare so its possible to have a buffer that never uses static memory.

1 files changed, 3 insertions, 2 deletions

diff --git a/source/blender/blenkernel/intern/pbvh_bmesh.c b/source/blender/blenkernel/intern/pbvh_bmesh.c
index 5d60957abcb..791288a4dda 100644
--- a/source/blender/blenkernel/intern/pbvh_bmesh.c
+++ b/source/blender/blenkernel/intern/pbvh_bmesh.c
@@ -1040,8 +1040,9 @@ void BKE_pbvh_build_bmesh(PBVH *bvh, BMesh *bm, int smooth_shading,
 int BKE_pbvh_bmesh_update_topology(PBVH *bvh, PBVHTopologyUpdateMode mode,
 								   const float center[3], float radius)
 {
-	BLI_buffer_declare(BMFace*, edge_faces, 8);
-	BLI_buffer_declare(BMFace*, deleted_faces, 32);
+	BLI_buffer_declare_static(BMFace *, edge_faces, BLI_BUFFER_NOP, 8);
+	BLI_buffer_declare_static(BMFace *, deleted_faces, BLI_BUFFER_NOP, 32);
+
 	int modified = FALSE;
 	int n;