diff options
Diffstat (limited to 'source/blender/blenlib/intern/BLI_memblock.c')
-rw-r--r-- | source/blender/blenlib/intern/BLI_memblock.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/source/blender/blenlib/intern/BLI_memblock.c b/source/blender/blenlib/intern/BLI_memblock.c index ee9ea15835b..b532202ebaa 100644 --- a/source/blender/blenlib/intern/BLI_memblock.c +++ b/source/blender/blenlib/intern/BLI_memblock.c @@ -191,10 +191,14 @@ void *BLI_memblock_iterstep(BLI_memblock_iter *iter) return ptr; } -/* Direct access. elem is element index inside the chosen chunk. */ +/* Direct access. elem is element index inside the chosen chunk. + * Double usage: You can set chunk to 0 and set the absolute elem index. + * The correct chunk will be retrieve. */ void *BLI_memblock_elem_get(BLI_memblock *mblk, int chunk, int elem) { BLI_assert(chunk < mblk->chunk_len); - BLI_assert(elem < (mblk->chunk_size / mblk->elem_size)); + int elem_per_chunk = mblk->chunk_size / mblk->elem_size; + chunk += elem / elem_per_chunk; + elem = elem % elem_per_chunk; return (char *)(mblk->chunk_list[chunk]) + mblk->elem_size * elem; } |