1/* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11#ifndef VP9_COMMON_VP9_MV_H_ 12#define VP9_COMMON_VP9_MV_H_ 13 14#include "vpx/vpx_integer.h" 15 16#include "vp9/common/vp9_common.h" 17 18#ifdef __cplusplus 19extern "C" { 20#endif 21 22typedef struct mv { 23 int16_t row; 24 int16_t col; 25} MV; 26 27typedef union int_mv { 28 uint32_t as_int; 29 MV as_mv; 30} int_mv; /* facilitates faster equality tests and copies */ 31 32typedef struct mv32 { 33 int32_t row; 34 int32_t col; 35} MV32; 36 37static INLINE int is_zero_mv(const MV *mv) { 38 return *((const uint32_t *)mv) == 0; 39} 40 41static INLINE int is_equal_mv(const MV *a, const MV *b) { 42 return *((const uint32_t *)a) == *((const uint32_t *)b); 43} 44 45static INLINE void clamp_mv(MV *mv, int min_col, int max_col, 46 int min_row, int max_row) { 47 mv->col = clamp(mv->col, min_col, max_col); 48 mv->row = clamp(mv->row, min_row, max_row); 49} 50 51#ifdef __cplusplus 52} // extern "C" 53#endif 54 55#endif // VP9_COMMON_VP9_MV_H_ 56