diff options
Diffstat (limited to 'tools.h')
| -rw-r--r-- | tools.h | 65 |
1 files changed, 65 insertions, 0 deletions
@@ -0,0 +1,65 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Miscellaneous Tools + * + * Copyright (C) 2018 Laurent Pinchart + * + * This file comes from the omap3-isp-live project + * (git://git.ideasonboard.org/omap3-isp-live.git) + * + * Copyright (C) 2010-2011 Ideas on board SPRL + * + * Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com> + */ + +#ifndef __TOOLS_H__ +#define __TOOLS_H__ + +#define ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0])) + +#define min(a, b) ({ \ + typeof(a) __a = (a); \ + typeof(b) __b = (b); \ + __a < __b ? __a : __b; \ +}) + +#define min_t(type, a, b) ({ \ + type __a = (a); \ + type __b = (b); \ + __a < __b ? __a : __b; \ +}) + +#define max(a, b) ({ \ + typeof(a) __a = (a); \ + typeof(b) __b = (b); \ + __a > __b ? __a : __b; \ +}) + +#define max_t(type, a, b) ({ \ + type __a = (a); \ + type __b = (b); \ + __a > __b ? __a : __b; \ +}) + +#define clamp(val, min, max) ({ \ + typeof(val) __val = (val); \ + typeof(min) __min = (min); \ + typeof(max) __max = (max); \ + __val = __val < __min ? __min : __val; \ + __val > __max ? __max : __val; \ +}) + +#define clamp_t(type, val, min, max) ({ \ + type __val = (val); \ + type __min = (min); \ + type __max = (max); \ + __val = __val < __min ? __min : __val; \ + __val > __max ? __max : __val; \ +}) + +#define div_round_up(num, denom) (((num) + (denom) - 1) / (denom)) + +#define container_of(ptr, type, member) \ + (type *)((char *)(ptr) - offsetof(type, member)) + +#endif /* __TOOLS_H__ */ |