73  * v4l2_rect_same_size() - return true if r1 has the same size as r2
75  * @r2: rectangle.
80 				       const struct v4l2_rect *r2)  in v4l2_rect_same_size()  argument
82 	return r1->width == r2->width && r1->height == r2->height;  in v4l2_rect_same_size()
86  * v4l2_rect_same_position() - return true if r1 has the same position as r2
88  * @r2: rectangle.
93 					   const struct v4l2_rect *r2)  in v4l2_rect_same_position()  argument
95 	return r1->top == r2->top && r1->left == r2->left;  in v4l2_rect_same_position()
99  * v4l2_rect_equal() - return true if r1 equals r2
101  * @r2: rectangle.
106 				   const struct v4l2_rect *r2)  in v4l2_rect_equal()  argument
108 	return v4l2_rect_same_size(r1, r2) && v4l2_rect_same_position(r1, r2);  in v4l2_rect_equal()
113  * @r: intersection of @r1 and @r2.
115  * @r2: rectangle.
119 				       const struct v4l2_rect *r2)  in v4l2_rect_intersect()  argument
123 	r->top = max(r1->top, r2->top);  in v4l2_rect_intersect()
124 	r->left = max(r1->left, r2->left);  in v4l2_rect_intersect()
125 	bottom = min(r1->top + r1->height, r2->top + r2->height);  in v4l2_rect_intersect()
126 	right = min(r1->left + r1->width, r2->left + r2->width);  in v4l2_rect_intersect()
159  * v4l2_rect_overlap() - do r1 and r2 overlap?
161  * @r2: rectangle.
163  * Returns true if @r1 and @r2 overlap.
166 				     const struct v4l2_rect *r2)  in v4l2_rect_overlap()  argument
169 	 * IF the left side of r1 is to the right of the right side of r2 OR  in v4l2_rect_overlap()
170 	 *    the left side of r2 is to the right of the right side of r1 THEN  in v4l2_rect_overlap()
173 	if (r1->left >= r2->left + r2->width ||  in v4l2_rect_overlap()
174 	    r2->left >= r1->left + r1->width)  in v4l2_rect_overlap()
177 	 * IF the top side of r1 is below the bottom of r2 OR  in v4l2_rect_overlap()
178 	 *    the top side of r2 is below the bottom of r1 THEN  in v4l2_rect_overlap()
181 	if (r1->top >= r2->top + r2->height ||  in v4l2_rect_overlap()
182 	    r2->top >= r1->top + r1->height)  in v4l2_rect_overlap()
188  * v4l2_rect_enclosed() - is r1 enclosed in r2?
190  * @r2: rectangle.
192  * Returns true if @r1 is enclosed in @r2.
195 				      struct v4l2_rect *r2)  in v4l2_rect_enclosed()  argument
197 	if (r1->left < r2->left || r1->top < r2->top)  in v4l2_rect_enclosed()
199 	if (r1->left + r1->width > r2->left + r2->width)  in v4l2_rect_enclosed()
201 	if (r1->top + r1->height > r2->top + r2->height)  in v4l2_rect_enclosed()