/*
* 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"
static inline int imax(const int a, const int b) {
return a > b ? a : b;
}
static inline int imin(const int a, const int b) {
return a < b ? a : b;
}
static inline unsigned umax(const unsigned a, const unsigned b) {
return a > b ? a : b;
}
static inline unsigned umin(const unsigned a, const unsigned b) {
return a < b ? a : b;
}
static inline int iclip(const int v, const int min, const int max) {
return v < min ? min : v > max ? max : v;
}
static inline int iclip_u8(const int v) {
return iclip(v, 0 , 255 );
}
static inline int apply_sign(const int v, const int s) {
return s < 0 ? -v : v;
}
static inline int apply_sign64(const int v, const int64_t s) {
return s < 0 ? -v : v;
}
static inline int ulog2(const unsigned v) {
return 31 ^ clz(v);
}
static inline int u64log2(const uint64_t v) {
return 63 ^ clzll(v);
}
static inline unsigned inv_recenter(const unsigned r, const unsigned v) {
if (v > (r << 1 ))
return v;
else if ((v & 1 ) == 0 )
return (v >> 1 ) + r;
else
return r - ((v + 1 ) >> 1 );
}
#endif /* DAV1D_COMMON_INTOPS_H */
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