[PATCH 05/22] [media] v4l2-rect.h: add position and equal helpers

Marco Felsch
2018-06-28T16:20:37Z

Add two helper functions to check if two rectangles have the same
position (top/left) and if two rectangles equals (same size and
same position).

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
---
include/media/v4l2-rect.h | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)

diff --git a/include/media/v4l2-rect.h b/include/media/v4l2-rect.h
index 595c3ba05f23..1ae25f599a6f 100644
--- a/include/media/v4l2-rect.h
+++ b/include/media/v4l2-rect.h
@@ -82,6 +82,33 @@ static inline bool v4l2_rect_same_size(const struct v4l2_rect *r1,
return r1->width == r2->width && r1->height == r2->height;
}

+/**
+ * v4l2_rect_same_position() - return true if r1 has the same position as r2
+ * @r1: rectangle.
+ * @r2: rectangle.
+ *
+ * Return true if both rectangles have the same position
+ */
+static inline bool v4l2_rect_same_position(const struct v4l2_rect *r1,
+ const struct v4l2_rect *r2)
+{
+ return r1->top == r2->top && r1->left == r2->left;
+
+}
+
+/**
+ * v4l2_rect_equal() - return true if r1 equals r2
+ * @r1: rectangle.
+ * @r2: rectangle.
+ *
+ * Return true if both rectangles have the same size and position.
+ */
+static inline bool v4l2_rect_equal(const struct v4l2_rect *r1,
+ const struct v4l2_rect *r2)
+{
+ return v4l2_rect_same_size(r1, r2) && v4l2_rect_same_position(r1, r2);
+}
+
/**
* v4l2_rect_intersect() - calculate the intersection of two rects.
* @r: intersection of @r1 and @r2.
--
2.17.1