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/*
* The MIT License
*
* Wavefront Alignment Algorithms
* Copyright (c) 2017 by Santiago Marco-Sola <santiagomsola@gmail.com>
*
* This file is part of Wavefront Alignment Algorithms.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* PROJECT: Wavefront Alignment Algorithms
* AUTHOR(S): Santiago Marco-Sola <santiagomsola@gmail.com>
* DESCRIPTION: WaveFront offset type and utils
*/
#ifndef WAVEFRONT_OFFSET_H_
#define WAVEFRONT_OFFSET_H_
/*
* Wavefront Offset
*/
typedef int32_t wf_offset_t;
typedef uint32_t wf_unsigned_offset_t;
/*
* Constants
*/
#define WAVEFRONT_OFFSET_NULL (INT32_MIN/2)
/*
* Translate k and offset to coordinates h,v
*/
#define WAVEFRONT_LENGTH(lo,hi) ((hi)-(lo)+1) // (lo/hi inclusive and +1 for WF[0])
#define WAVEFRONT_V(k,offset) ((offset)-(k))
#define WAVEFRONT_H(k,offset) (offset)
#define WAVEFRONT_ANTIDIAGONAL(k,offset) (2*(offset)-(k))
#define DPMATRIX_DIAGONAL_NULL INT_MAX
#define DPMATRIX_DIAGONAL(h,v) ((h)-(v))
#define DPMATRIX_ANTIDIAGONAL(h,v) ((h)+(v))
#define DPMATRIX_OFFSET(h,v) (h)
#define WAVEFRONT_K_INVERSE(k,plen,tlen) ((tlen)-(plen)-(k))
#endif /* WAVEFRONT_OFFSET_H_ */
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