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/*
* OMAP3 ISP library - Tools
*
* Copyright (C) 2010-2011 Ideas on board SPRL
*
* Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or (at
* your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#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 container_of(ptr, type, member) \
(type *)((char *)(ptr) - offsetof(type, member))
#endif /* __TOOLS_H__ */
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