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authorBenoit Parrot <bparrot@ti.com>2020-05-28 16:26:04 +0300
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>2020-07-04 13:29:38 +0300
commitd3246337d00fcb635e4ade45f748f155e4056b28 (patch)
tree6e5a0a4ec7a93a1ee0bf02ce8fe91663bb86f1c8 /include/media
parent675616554d0a5caff138008ee9bd4623bc4390b2 (diff)
downloadlinux-d3246337d00fcb635e4ade45f748f155e4056b28.tar.xz
media: v4l2-rect.h: add enclosed rectangle helper
Add a helper function to check if one rectangle is enclosed inside another. Signed-off-by: Benoit Parrot <bparrot@ti.com> Acked-by: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com> Reviewed-by: Lad Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'include/media')
-rw-r--r--include/media/v4l2-rect.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/media/v4l2-rect.h b/include/media/v4l2-rect.h
index 8800a640c224..bd587d0c0dc3 100644
--- a/include/media/v4l2-rect.h
+++ b/include/media/v4l2-rect.h
@@ -184,4 +184,24 @@ static inline bool v4l2_rect_overlap(const struct v4l2_rect *r1,
return true;
}
+/**
+ * v4l2_rect_enclosed() - is r1 enclosed in r2?
+ * @r1: rectangle.
+ * @r2: rectangle.
+ *
+ * Returns true if @r1 is enclosed in @r2.
+ */
+static inline bool v4l2_rect_enclosed(struct v4l2_rect *r1,
+ struct v4l2_rect *r2)
+{
+ if (r1->left < r2->left || r1->top < r2->top)
+ return false;
+ if (r1->left + r1->width > r2->left + r2->width)
+ return false;
+ if (r1->top + r1->height > r2->top + r2->height)
+ return false;
+
+ return true;
+}
+
#endif