ref: a3856f049d188b971c0956b1b5cef350212f03a3
dir: /include/common/intops.h/
/*
* Copyright © 2018, VideoLAN and dav1d authors
* Copyright © 2018, Two Orioles, LLC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef DAV1D_COMMON_INTOPS_H
#define DAV1D_COMMON_INTOPS_H
#include <stdint.h>
#include "common/attributes.h"
#define imax(a, b) (int)((int)(a) > (int)(b) ? (a) : (b))
#define imin(a, b) (int)((int)(a) < (int)(b) ? (a) : (b))
#define umax(a, b) (unsigned)((unsigned)(a) > (unsigned)(b) ? (a) : (b))
#define umin(a, b) (unsigned)((unsigned)(a) < (unsigned)(b) ? (a) : (b))
#define iclip_u8(v) iclip((v), 0, 255)
#define apply_sign(v, s) ((int)(s) < 0 ? -(int)(v) : (int)(v))
#define apply_sign64(v, s) ((int64_t)(s) < 0 ? -(int)(v) : (int)(v))
#define ulog2(v) (int)(31 - clz((unsigned)(v)))
#define u64log2(v) (int)(63 - clzll((uint64_t)(v)))
#define inv_recenter(r, v) (unsigned)((unsigned)(v) > ((unsigned)(r)<<1) ? (v) : (((v)&1) == 0) ? (((unsigned)(v)>>1) + (unsigned)(r)) : ((unsigned)(r) - (((unsigned)(v)+1)>>1)))
static inline int iclip(const int v, const int min, const int max) {
return v < min ? min : v > max ? max : v;
}
#endif /* DAV1D_COMMON_INTOPS_H */