From: Marco Felsch <m.felsch@pengutronix.de>
Date: Thu, 28 Jun 2018 16:20:37 +0000 (-0400)
Subject: media: v4l2-rect.h: add position and equal helpers
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=e62fdbb24c342f78e431e05925097165cc0e05e9;p=openwrt%2Fstaging%2Fblogic.git

media: v4l2-rect.h: add position and equal helpers

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>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
---

diff --git a/include/media/v4l2-rect.h b/include/media/v4l2-rect.h
index 595c3ba05f23..c86474dc7b55 100644
--- a/include/media/v4l2-rect.h
+++ b/include/media/v4l2-rect.h
@@ -82,6 +82,32 @@ 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.