ref: eaedb95de65fb5612297b148a306398240e8ad6f
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" 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 */