Add vectsubtract() and rectinside()

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1371 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 23 insertions, 0 deletions

diff --git a/nuttx/include/nuttx/nxglib.h b/nuttx/include/nuttx/nxglib.h
index b34159201..1f230e0d2 100644
--- a/nuttx/include/nuttx/nxglib.h
+++ b/nuttx/include/nuttx/nxglib.h
@@ -352,6 +352,18 @@ EXTERN void nxgl_vectoradd(FAR struct nxgl_point_s *dest,
                            FAR const struct nxgl_point_s *v2);
 
 /****************************************************************************
+ * Name: nxgl_vectorsubtract
+ *
+ * Description:
+ *   Add subtract vector v2 from vector v1 and return the result in vector dest
+ *
+ ****************************************************************************/
+
+EXTERN void nxgl_vectorsubtract(FAR struct nxgl_point_s *dest,
+                                FAR const struct nxgl_point_s *v1,
+                                FAR const struct nxgl_point_s *v2);
+
+/****************************************************************************
  * Name: nxgl_rectintersect
  *
  * Description:
@@ -402,6 +414,17 @@ EXTERN boolean nxgl_rectoverlap(FAR struct nxgl_rect_s *rect1,
                                 FAR struct nxgl_rect_s *rect2);
 
 /****************************************************************************
+ * Name: nxgl_rectinside
+ *
+ * Description:
+ *   Return TRUE if the point pt lies within rect.
+ *
+ ****************************************************************************/
+
+EXTERN boolean nxgl_rectinside(FAR const struct nxgl_rect_s *rect,
+                               FAR const struct nxgl_point_s *pt);
+
+/****************************************************************************
  * Name: nxgl_nullrect
  *
  * Description: