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/*
* 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 */