Limit maximum number of IVs on a shape

Create SHAPE_MAX_NUM_IVS (currently 50) and limit all shapes to that
number of IVs. When a shape has more than 50 IVs, fallback to the
obj_too_complex shape which uses hash lookup for ivs.

1 files changed, 1 insertions, 0 deletions

diff --git a/shape.h b/shape.h
index 60084a4aff..df0e633073 100644
--- a/shape.h
+++ b/shape.h
@@ -31,6 +31,7 @@ typedef uint16_t shape_id_t;
 # define SHAPE_BITMAP_SIZE 16384
 
 # define SHAPE_MAX_VARIATIONS 8
+# define SHAPE_MAX_NUM_IVS 50
 
 # define MAX_SHAPE_ID (SHAPE_MASK - 1)
 # define INVALID_SHAPE_ID SHAPE_MASK