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

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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>
This commit is contained in:
Marco Felsch 2018-06-28 12:20:37 -04:00 committed by Mauro Carvalho Chehab
parent 8a7441bacc
commit e62fdbb24c
1 changed files with 26 additions and 0 deletions
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26
include/media/v4l2-rect.h
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@ -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.