15  * @r: rect whose width and height fields will be set
18 static inline void v4l2_rect_set_size_to(struct v4l2_rect *r,  in v4l2_rect_set_size_to()  argument
21 	r->width = size->width;  in v4l2_rect_set_size_to()
22 	r->height = size->height;  in v4l2_rect_set_size_to()
26  * v4l2_rect_set_min_size() - width and height of r should be >= min_size.
27  * @r: rect whose width and height will be modified
30 static inline void v4l2_rect_set_min_size(struct v4l2_rect *r,  in v4l2_rect_set_min_size()  argument
33 	if (r->width < min_size->width)  in v4l2_rect_set_min_size()
34 		r->width = min_size->width;  in v4l2_rect_set_min_size()
35 	if (r->height < min_size->height)  in v4l2_rect_set_min_size()
36 		r->height = min_size->height;  in v4l2_rect_set_min_size()
40  * v4l2_rect_set_max_size() - width and height of r should be <= max_size
41  * @r: rect whose width and height will be modified
44 static inline void v4l2_rect_set_max_size(struct v4l2_rect *r,  in v4l2_rect_set_max_size()  argument
47 	if (r->width > max_size->width)  in v4l2_rect_set_max_size()
48 		r->width = max_size->width;  in v4l2_rect_set_max_size()
49 	if (r->height > max_size->height)  in v4l2_rect_set_max_size()
50 		r->height = max_size->height;  in v4l2_rect_set_max_size()
54  * v4l2_rect_map_inside()- r should be inside boundary.
55  * @r: rect that will be modified
56  * @boundary: rect containing the boundary for @r
58 static inline void v4l2_rect_map_inside(struct v4l2_rect *r,  in v4l2_rect_map_inside()  argument
61 	v4l2_rect_set_max_size(r, boundary);  in v4l2_rect_map_inside()
62 	if (r->left < boundary->left)  in v4l2_rect_map_inside()
63 		r->left = boundary->left;  in v4l2_rect_map_inside()
64 	if (r->top < boundary->top)  in v4l2_rect_map_inside()
65 		r->top = boundary->top;  in v4l2_rect_map_inside()
66 	if (r->left + r->width > boundary->left + boundary->width)  in v4l2_rect_map_inside()
67 		r->left = boundary->left + boundary->width - r->width;  in v4l2_rect_map_inside()
68 	if (r->top + r->height > boundary->top + boundary->height)  in v4l2_rect_map_inside()
69 		r->top = boundary->top + boundary->height - r->height;  in v4l2_rect_map_inside()
113  * @r: intersection of @r1 and @r2.
117 static inline void v4l2_rect_intersect(struct v4l2_rect *r,  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()
127 	r->height = max(0, bottom - r->top);  in v4l2_rect_intersect()
128 	r->width = max(0, right - r->left);  in v4l2_rect_intersect()
132  * v4l2_rect_scale() - scale rect r by to/from
133  * @r: rect to be scaled.
137  * This scales rectangle @r horizontally by @to->width / @from->width and
140  * Typically @r is a rectangle inside @from and you want the rectangle as
141  * it would appear after scaling @from to @to. So the resulting @r will
144 static inline void v4l2_rect_scale(struct v4l2_rect *r,  in v4l2_rect_scale()  argument
149 		r->left = r->top = r->width = r->height = 0;  in v4l2_rect_scale()
152 	r->left = (((r->left - from->left) * to->width) / from->width) & ~1;  in v4l2_rect_scale()
153 	r->width = ((r->width * to->width) / from->width) & ~1;  in v4l2_rect_scale()
154 	r->top = ((r->top - from->top) * to->height) / from->height;  in v4l2_rect_scale()
155 	r->height = (r->height * to->height) / from->height;  in v4l2_rect_scale()