2013-04-24 19:52:34 +04:00
|
|
|
/*
|
|
|
|
* Copyright (C) 2011-2013 Intel Corporation
|
|
|
|
*
|
|
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
|
|
* to deal in the Software without restriction, including without limitation
|
|
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
|
|
*
|
|
|
|
* The above copyright notice and this permission notice (including the next
|
|
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
|
|
* Software.
|
|
|
|
*
|
|
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
|
|
* SOFTWARE.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef DRM_RECT_H
|
|
|
|
#define DRM_RECT_H
|
|
|
|
|
2019-11-22 20:56:23 +03:00
|
|
|
#include <linux/types.h>
|
|
|
|
|
2013-04-24 19:52:34 +04:00
|
|
|
/**
|
2013-05-08 18:16:45 +04:00
|
|
|
* DOC: rect utils
|
|
|
|
*
|
|
|
|
* Utility functions to help manage rectangular areas for
|
|
|
|
* clipping, scaling, etc. calculations.
|
|
|
|
*/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* struct drm_rect - two dimensional rectangle
|
2013-04-24 19:52:34 +04:00
|
|
|
* @x1: horizontal starting coordinate (inclusive)
|
|
|
|
* @x2: horizontal ending coordinate (exclusive)
|
|
|
|
* @y1: vertical starting coordinate (inclusive)
|
|
|
|
* @y2: vertical ending coordinate (exclusive)
|
|
|
|
*/
|
|
|
|
struct drm_rect {
|
|
|
|
int x1, y1, x2, y2;
|
|
|
|
};
|
|
|
|
|
2017-05-24 17:51:36 +03:00
|
|
|
/**
|
|
|
|
* DRM_RECT_FMT - printf string for &struct drm_rect
|
|
|
|
*/
|
|
|
|
#define DRM_RECT_FMT "%dx%d%+d%+d"
|
|
|
|
/**
|
|
|
|
* DRM_RECT_ARG - printf arguments for &struct drm_rect
|
|
|
|
* @r: rectangle struct
|
|
|
|
*/
|
|
|
|
#define DRM_RECT_ARG(r) drm_rect_width(r), drm_rect_height(r), (r)->x1, (r)->y1
|
|
|
|
|
|
|
|
/**
|
|
|
|
* DRM_RECT_FP_FMT - printf string for &struct drm_rect in 16.16 fixed point
|
|
|
|
*/
|
|
|
|
#define DRM_RECT_FP_FMT "%d.%06ux%d.%06u%+d.%06u%+d.%06u"
|
|
|
|
/**
|
|
|
|
* DRM_RECT_FP_ARG - printf arguments for &struct drm_rect in 16.16 fixed point
|
|
|
|
* @r: rectangle struct
|
|
|
|
*
|
|
|
|
* This is useful for e.g. printing plane source rectangles, which are in 16.16
|
|
|
|
* fixed point.
|
|
|
|
*/
|
|
|
|
#define DRM_RECT_FP_ARG(r) \
|
|
|
|
drm_rect_width(r) >> 16, ((drm_rect_width(r) & 0xffff) * 15625) >> 10, \
|
|
|
|
drm_rect_height(r) >> 16, ((drm_rect_height(r) & 0xffff) * 15625) >> 10, \
|
|
|
|
(r)->x1 >> 16, (((r)->x1 & 0xffff) * 15625) >> 10, \
|
|
|
|
(r)->y1 >> 16, (((r)->y1 & 0xffff) * 15625) >> 10
|
|
|
|
|
2019-09-30 16:42:12 +03:00
|
|
|
/**
|
|
|
|
* drm_rect_init - initialize the rectangle from x/y/w/h
|
|
|
|
* @r: rectangle
|
|
|
|
* @x: x coordinate
|
|
|
|
* @y: y coordinate
|
|
|
|
* @width: width
|
|
|
|
* @height: height
|
|
|
|
*/
|
|
|
|
static inline void drm_rect_init(struct drm_rect *r, int x, int y,
|
|
|
|
int width, int height)
|
|
|
|
{
|
|
|
|
r->x1 = x;
|
|
|
|
r->y1 = y;
|
|
|
|
r->x2 = x + width;
|
|
|
|
r->y2 = y + height;
|
|
|
|
}
|
|
|
|
|
2013-04-24 19:52:34 +04:00
|
|
|
/**
|
|
|
|
* drm_rect_adjust_size - adjust the size of the rectangle
|
|
|
|
* @r: rectangle to be adjusted
|
|
|
|
* @dw: horizontal adjustment
|
|
|
|
* @dh: vertical adjustment
|
|
|
|
*
|
|
|
|
* Change the size of rectangle @r by @dw in the horizontal direction,
|
|
|
|
* and by @dh in the vertical direction, while keeping the center
|
|
|
|
* of @r stationary.
|
|
|
|
*
|
|
|
|
* Positive @dw and @dh increase the size, negative values decrease it.
|
|
|
|
*/
|
|
|
|
static inline void drm_rect_adjust_size(struct drm_rect *r, int dw, int dh)
|
|
|
|
{
|
|
|
|
r->x1 -= dw >> 1;
|
|
|
|
r->y1 -= dh >> 1;
|
|
|
|
r->x2 += (dw + 1) >> 1;
|
|
|
|
r->y2 += (dh + 1) >> 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* drm_rect_translate - translate the rectangle
|
|
|
|
* @r: rectangle to be tranlated
|
|
|
|
* @dx: horizontal translation
|
|
|
|
* @dy: vertical translation
|
|
|
|
*
|
|
|
|
* Move rectangle @r by @dx in the horizontal direction,
|
|
|
|
* and by @dy in the vertical direction.
|
|
|
|
*/
|
|
|
|
static inline void drm_rect_translate(struct drm_rect *r, int dx, int dy)
|
|
|
|
{
|
|
|
|
r->x1 += dx;
|
|
|
|
r->y1 += dy;
|
|
|
|
r->x2 += dx;
|
|
|
|
r->y2 += dy;
|
|
|
|
}
|
|
|
|
|
2019-09-30 16:42:11 +03:00
|
|
|
/**
|
|
|
|
* drm_rect_translate_to - translate the rectangle to an absolute position
|
|
|
|
* @r: rectangle to be tranlated
|
|
|
|
* @x: horizontal position
|
|
|
|
* @y: vertical position
|
|
|
|
*
|
|
|
|
* Move rectangle @r to @x in the horizontal direction,
|
|
|
|
* and to @y in the vertical direction.
|
|
|
|
*/
|
|
|
|
static inline void drm_rect_translate_to(struct drm_rect *r, int x, int y)
|
|
|
|
{
|
|
|
|
drm_rect_translate(r, x - r->x1, y - r->y1);
|
|
|
|
}
|
|
|
|
|
2013-04-24 19:52:34 +04:00
|
|
|
/**
|
|
|
|
* drm_rect_downscale - downscale a rectangle
|
|
|
|
* @r: rectangle to be downscaled
|
|
|
|
* @horz: horizontal downscale factor
|
|
|
|
* @vert: vertical downscale factor
|
|
|
|
*
|
|
|
|
* Divide the coordinates of rectangle @r by @horz and @vert.
|
|
|
|
*/
|
|
|
|
static inline void drm_rect_downscale(struct drm_rect *r, int horz, int vert)
|
|
|
|
{
|
|
|
|
r->x1 /= horz;
|
|
|
|
r->y1 /= vert;
|
|
|
|
r->x2 /= horz;
|
|
|
|
r->y2 /= vert;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* drm_rect_width - determine the rectangle width
|
|
|
|
* @r: rectangle whose width is returned
|
|
|
|
*
|
|
|
|
* RETURNS:
|
|
|
|
* The width of the rectangle.
|
|
|
|
*/
|
|
|
|
static inline int drm_rect_width(const struct drm_rect *r)
|
|
|
|
{
|
|
|
|
return r->x2 - r->x1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* drm_rect_height - determine the rectangle height
|
|
|
|
* @r: rectangle whose height is returned
|
|
|
|
*
|
|
|
|
* RETURNS:
|
|
|
|
* The height of the rectangle.
|
|
|
|
*/
|
|
|
|
static inline int drm_rect_height(const struct drm_rect *r)
|
|
|
|
{
|
|
|
|
return r->y2 - r->y1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2020-07-15 08:23:49 +03:00
|
|
|
* drm_rect_visible - determine if the rectangle is visible
|
2013-04-24 19:52:34 +04:00
|
|
|
* @r: rectangle whose visibility is returned
|
|
|
|
*
|
|
|
|
* RETURNS:
|
|
|
|
* %true if the rectangle is visible, %false otherwise.
|
|
|
|
*/
|
|
|
|
static inline bool drm_rect_visible(const struct drm_rect *r)
|
|
|
|
{
|
|
|
|
return drm_rect_width(r) > 0 && drm_rect_height(r) > 0;
|
|
|
|
}
|
|
|
|
|
2013-04-24 19:52:37 +04:00
|
|
|
/**
|
|
|
|
* drm_rect_equals - determine if two rectangles are equal
|
|
|
|
* @r1: first rectangle
|
|
|
|
* @r2: second rectangle
|
|
|
|
*
|
|
|
|
* RETURNS:
|
|
|
|
* %true if the rectangles are equal, %false otherwise.
|
|
|
|
*/
|
|
|
|
static inline bool drm_rect_equals(const struct drm_rect *r1,
|
|
|
|
const struct drm_rect *r2)
|
|
|
|
{
|
|
|
|
return r1->x1 == r2->x1 && r1->x2 == r2->x2 &&
|
|
|
|
r1->y1 == r2->y1 && r1->y2 == r2->y2;
|
|
|
|
}
|
|
|
|
|
2013-04-24 19:52:34 +04:00
|
|
|
bool drm_rect_intersect(struct drm_rect *r, const struct drm_rect *clip);
|
|
|
|
bool drm_rect_clip_scaled(struct drm_rect *src, struct drm_rect *dst,
|
2018-05-03 14:22:14 +03:00
|
|
|
const struct drm_rect *clip);
|
2013-04-24 19:52:35 +04:00
|
|
|
int drm_rect_calc_hscale(const struct drm_rect *src,
|
|
|
|
const struct drm_rect *dst,
|
|
|
|
int min_hscale, int max_hscale);
|
|
|
|
int drm_rect_calc_vscale(const struct drm_rect *src,
|
|
|
|
const struct drm_rect *dst,
|
|
|
|
int min_vscale, int max_vscale);
|
2015-11-16 18:02:36 +03:00
|
|
|
void drm_rect_debug_print(const char *prefix,
|
|
|
|
const struct drm_rect *r, bool fixed_point);
|
2014-07-08 09:01:55 +04:00
|
|
|
void drm_rect_rotate(struct drm_rect *r,
|
|
|
|
int width, int height,
|
|
|
|
unsigned int rotation);
|
|
|
|
void drm_rect_rotate_inv(struct drm_rect *r,
|
|
|
|
int width, int height,
|
|
|
|
unsigned int rotation);
|
2013-04-24 19:52:34 +04:00
|
|
|
|
|
|
|
#endif
|