diff options
Diffstat (limited to 'src/engine/snapshot.cpp')
| -rw-r--r-- | src/engine/snapshot.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/engine/snapshot.cpp b/src/engine/snapshot.cpp index 2f6f1f36..2e68df72 100644 --- a/src/engine/snapshot.cpp +++ b/src/engine/snapshot.cpp @@ -27,6 +27,21 @@ void *snapshot_empty_delta() return ∅ } +int snapshot_crc(snapshot *snap) +{ + int crc = 0; + + for(int i = 0; i < snap->num_items; i++) + { + snapshot::item *item = snap->get_item(i); + int size = snap->get_item_datasize(i); + + for(int b = 0; b < size/4; b++) + crc += item->data()[b]; + } + return crc; +} + static int diff_item(int *past, int *current, int *out, int size) { /* |