56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VP9_COMMON_VP9_MV_H_
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#define VP9_COMMON_VP9_MV_H_
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#include "vpx/vpx_integer.h"
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#include "vp9/common/vp9_common.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct mv {
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int16_t row;
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int16_t col;
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} MV;
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typedef union int_mv {
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uint32_t as_int;
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MV as_mv;
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} int_mv; /* facilitates faster equality tests and copies */
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typedef struct mv32 {
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int32_t row;
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int32_t col;
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} MV32;
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static INLINE int is_zero_mv(const MV *mv) {
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return *((const uint32_t *)mv) == 0;
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}
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static INLINE int is_equal_mv(const MV *a, const MV *b) {
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return *((const uint32_t *)a) == *((const uint32_t *)b);
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}
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static INLINE void clamp_mv(MV *mv, int min_col, int max_col, int min_row,
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int max_row) {
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mv->col = clamp(mv->col, min_col, max_col);
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mv->row = clamp(mv->row, min_row, max_row);
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}
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // VP9_COMMON_VP9_MV_H_
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