source: 3DVCSoftware/branches/HTM-6.0-LG/source/Lib/TLibCommon/TComInterpolationFilter.h @ 304

Last change on this file since 304 was 56, checked in by hschwarz, 12 years ago

updated trunk (move to HM6.1)

File size: 3.9 KB
Line 
1/* The copyright in this software is being made available under the BSD
2 * License, included below. This software may be subject to other third party
3 * and contributor rights, including patent rights, and no such rights are
4 * granted under this license. 
5 *
6 * Copyright (c) 2010-2012, ITU/ISO/IEC
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
11 *
12 *  * Redistributions of source code must retain the above copyright notice,
13 *    this list of conditions and the following disclaimer.
14 *  * Redistributions in binary form must reproduce the above copyright notice,
15 *    this list of conditions and the following disclaimer in the documentation
16 *    and/or other materials provided with the distribution.
17 *  * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
18 *    be used to endorse or promote products derived from this software without
19 *    specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31 * THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34/**
35 * \file
36 * \brief Declaration of TComInterpolationFilter class
37 */
38
39#ifndef __HM_TCOMINTERPOLATIONFILTER_H__
40#define __HM_TCOMINTERPOLATIONFILTER_H__
41
42#include "TypeDef.h"
43
44//! \ingroup TLibCommon
45//! \{
46
47#define NTAPS_LUMA        8 ///< Number of taps for luma
48#define NTAPS_CHROMA      4 ///< Number of taps for chroma
49#define IF_INTERNAL_PREC 14 ///< Number of bits for internal precision
50#define IF_FILTER_PREC    6 ///< Log2 of sum of filter taps
51#define IF_INTERNAL_OFFS (1<<(IF_INTERNAL_PREC-1)) ///< Offset used internally
52
53/**
54 * \brief Interpolation filter class
55 */
56class TComInterpolationFilter
57{
58  static const Short m_lumaFilter[4][NTAPS_LUMA];     ///< Luma filter taps
59  static const Short m_chromaFilter[8][NTAPS_CHROMA]; ///< Chroma filter taps
60 
61  static Void filterCopy(const Pel *src, Int srcStride, Short *dst, Int dstStride, Int width, Int height, Bool isFirst, Bool isLast);
62 
63  template<int N, bool isVertical, bool isFirst, bool isLast>
64  static Void filter(Pel const *src, Int srcStride, Short *dst, Int dstStride, Int width, Int height, Short const *coeff);
65
66  template<int N>
67  static Void filterHor(Pel *src, Int srcStride, Short *dst, Int dstStride, Int width, Int height,               Bool isLast, Short const *coeff);
68  template<int N>
69  static Void filterVer(Pel *src, Int srcStride, Short *dst, Int dstStride, Int width, Int height, Bool isFirst, Bool isLast, Short const *coeff);
70
71public:
72  TComInterpolationFilter() {}
73  ~TComInterpolationFilter() {}
74
75  Void filterHorLuma  (Pel *src, Int srcStride, Short *dst, Int dstStride, Int width, Int height, Int frac,               Bool isLast );
76  Void filterVerLuma  (Pel *src, Int srcStride, Short *dst, Int dstStride, Int width, Int height, Int frac, Bool isFirst, Bool isLast );
77  Void filterHorChroma(Pel *src, Int srcStride, Short *dst, Int dstStride, Int width, Int height, Int frac,               Bool isLast );
78  Void filterVerChroma(Pel *src, Int srcStride, Short *dst, Int dstStride, Int width, Int height, Int frac, Bool isFirst, Bool isLast );
79};
80
81//! \}
82
83#endif
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