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 595c3ba..c86474d 100644 (file)
--- a/include/media/v4l2-rect.h
+++ b/include/media/v4l2-rect.h
@@ -83,6 +83,32 @@ static inline bool v4l2_rect_same_size(const struct v4l2_rect *r1,
 }
 
 /**
+ * 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.
  * @r1: rectangle.