[1313] | 1 | /* The copyright in this software is being made available under the BSD |
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| 2 | * License, included below. This software may be subject to other third party |
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| 3 | * and contributor rights, including patent rights, and no such rights are |
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| 4 | * granted under this license. |
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| 5 | * |
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| 6 | * Copyright (c) 2010-2015, ITU/ISO/IEC |
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| 7 | * All rights reserved. |
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| 8 | * |
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| 9 | * Redistribution and use in source and binary forms, with or without |
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| 10 | * modification, are permitted provided that the following conditions are met: |
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| 11 | * |
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| 12 | * * Redistributions of source code must retain the above copyright notice, |
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| 13 | * this list of conditions and the following disclaimer. |
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| 14 | * * Redistributions in binary form must reproduce the above copyright notice, |
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| 15 | * this list of conditions and the following disclaimer in the documentation |
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| 16 | * and/or other materials provided with the distribution. |
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| 17 | * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may |
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| 18 | * be used to endorse or promote products derived from this software without |
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| 19 | * specific prior written permission. |
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| 20 | * |
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS |
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| 25 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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| 31 | * THE POSSIBILITY OF SUCH DAMAGE. |
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| 32 | */ |
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| 33 | |
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| 34 | #ifndef __TCOMTU__ |
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| 35 | #define __TCOMTU__ |
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| 36 | |
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| 37 | class TComTU; // forward declaration |
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| 38 | |
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| 39 | #include "CommonDef.h" |
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| 40 | #include "TComRectangle.h" |
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| 41 | #include "TComChromaFormat.h" |
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| 42 | |
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| 43 | class TComDataCU; // forward declaration |
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| 44 | |
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| 45 | //---------------------------------------------------------------------------------------------------------------------- |
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| 46 | |
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| 47 | |
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| 48 | class TComTU |
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| 49 | { |
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| 50 | public: |
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| 51 | typedef enum TU_SPLIT_MODE { DONT_SPLIT=0, VERTICAL_SPLIT=1, QUAD_SPLIT=2, NUMBER_OF_SPLIT_MODES=3 } SPLIT_MODE; |
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| 52 | |
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| 53 | static const UInt NUMBER_OF_SECTIONS[NUMBER_OF_SPLIT_MODES]; |
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| 54 | |
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| 55 | protected: |
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| 56 | ChromaFormat mChromaFormat; |
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| 57 | Bool mbProcessLastOfLevel; // if true, then if size n/2 x n/2 is invalid, the nxn block for a channel is processed only for the last block, not the first. |
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| 58 | UInt mCuDepth; |
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| 59 | UInt mTrDepthRelCU[MAX_NUM_COMPONENT]; |
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| 60 | UInt mSection; |
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| 61 | TU_SPLIT_MODE mSplitMode; |
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| 62 | TComRectangle mRect[MAX_NUM_COMPONENT]; |
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| 63 | Bool mCodeAll[MAX_NUM_COMPONENT]; |
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| 64 | UInt mOrigWidth[MAX_NUM_COMPONENT]; |
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| 65 | UInt mOffsets[MAX_NUM_COMPONENT]; |
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| 66 | UInt mAbsPartIdxCU; |
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| 67 | UInt mAbsPartIdxTURelCU; |
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| 68 | UInt mAbsPartIdxStep; |
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| 69 | TComDataCU *mpcCU; |
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| 70 | UInt mLog2TrLumaSize; |
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| 71 | TComTU *mpParent; |
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| 72 | |
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| 73 | TComTU(const TComTU &); // not defined - do not use |
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| 74 | TComTU&operator=(const TComTU &); // not defined - do not use |
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| 75 | |
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| 76 | public: |
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| 77 | TComTU( TComDataCU *pcCU, |
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| 78 | const UInt absPartIdxCU, |
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| 79 | const UInt cuDepth, |
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| 80 | const UInt initTrDepthRelCU); |
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| 81 | |
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| 82 | protected: |
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| 83 | TComTU( TComTU &parentLevel, |
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| 84 | const Bool bProcessLastOfLevel, |
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| 85 | const TU_SPLIT_MODE splitMode = QUAD_SPLIT, |
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| 86 | const Bool splitAtCurrentDepth = false, |
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| 87 | const ComponentID absPartIdxSourceComponent = COMPONENT_Y |
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| 88 | ); |
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| 89 | |
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| 90 | public: |
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| 91 | TComTU *Parent() { return mpParent; } |
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| 92 | const TComTU *Parent() const { return mpParent; } |
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| 93 | |
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| 94 | UInt getCoefficientOffset(const ComponentID compID) const { return mOffsets[compID]; } |
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| 95 | |
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| 96 | const TComRectangle &getRect(const ComponentID compID) const { return mRect[compID]; } |
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| 97 | |
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| 98 | Bool ProcessingAllQuadrants(const ComponentID compID) const { return mCodeAll[compID]; } |
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| 99 | Bool ProcessComponentSection(const ComponentID compID) const { return mRect[compID].width != 0; } |
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| 100 | Bool ProcessChannelSection(const ChannelType chType) const { return mRect[chType].width != 0; } |
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| 101 | UInt GetSectionNumber() const { return mSection; } |
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| 102 | |
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| 103 | UInt getCUDepth() const { return mCuDepth; } |
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| 104 | |
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| 105 | UInt GetTransformDepthTotal() const { return mCuDepth+GetTransformDepthRel(); } |
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| 106 | UInt GetTransformDepthTotalAdj(const ComponentID compID) const { return mCuDepth+GetTransformDepthRelAdj(compID); } |
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| 107 | |
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| 108 | UInt GetTransformDepthRel() const { return mTrDepthRelCU[COMPONENT_Y]; } |
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| 109 | UInt GetTransformDepthRelAdj(const ComponentID compID) const { return mTrDepthRelCU[compID]; } |
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| 110 | UInt GetTransformDepthRelAdj(const ChannelType chType) const |
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| 111 | { |
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| 112 | assert(isLuma(chType) || (mTrDepthRelCU[COMPONENT_Cb] == mTrDepthRelCU[COMPONENT_Cr])); |
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| 113 | return mTrDepthRelCU[isLuma(chType) ? COMPONENT_Y : COMPONENT_Cb]; |
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| 114 | } |
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| 115 | |
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| 116 | UInt GetAbsPartIdxCU() const { return mAbsPartIdxCU; } |
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| 117 | UInt GetRelPartIdxTU() const { return mAbsPartIdxTURelCU; } |
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| 118 | UInt GetRelPartIdxTU(const ComponentID compID) const { return ProcessingAllQuadrants(compID) ? mAbsPartIdxTURelCU : (mAbsPartIdxTURelCU & (~0x3)); } |
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| 119 | UInt GetAbsPartIdxTU() const { return GetAbsPartIdxCU() + GetRelPartIdxTU(); } |
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| 120 | UInt GetAbsPartIdxTU(const ComponentID compID) const { return GetAbsPartIdxCU() + GetRelPartIdxTU(compID); } |
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| 121 | UInt GetAbsPartIdxNumParts() const { return mAbsPartIdxStep; } |
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| 122 | UInt GetAbsPartIdxNumParts(const ComponentID compID) const { return ProcessingAllQuadrants(compID) ? mAbsPartIdxStep : (mAbsPartIdxStep * NUMBER_OF_SECTIONS[mSplitMode]); } |
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| 123 | |
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| 124 | ChromaFormat GetChromaFormat() const { return mChromaFormat; } |
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| 125 | |
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| 126 | TComDataCU *getCU() { return mpcCU; } |
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| 127 | const TComDataCU *getCU() const { return mpcCU; } |
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| 128 | Bool IsLastSection() const { return mSection+1>=((1<<mSplitMode)); } |
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| 129 | |
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| 130 | UInt GetLog2LumaTrSize() const { return mLog2TrLumaSize; } |
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| 131 | UInt GetEquivalentLog2TrSize(const ComponentID compID) const; |
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| 132 | TU_SPLIT_MODE GetSplitMode() const { return mSplitMode; } |
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| 133 | |
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| 134 | Bool useDST(const ComponentID compID); |
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| 135 | Bool isNonTransformedResidualRotated(const ComponentID compID); |
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| 136 | |
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| 137 | UInt getGolombRiceStatisticsIndex(const ComponentID compID); |
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| 138 | }; |
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| 139 | |
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| 140 | |
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| 141 | |
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| 142 | class TComTURecurse : public TComTU |
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| 143 | { |
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| 144 | public: |
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| 145 | |
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| 146 | TComTURecurse( TComDataCU *pcCU, |
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| 147 | const UInt absPartIdxCU, |
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| 148 | const UInt forcedDepthOfCU) |
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| 149 | : TComTU(pcCU, absPartIdxCU, forcedDepthOfCU, 0) { } |
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| 150 | |
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| 151 | TComTURecurse( TComDataCU *pcCU, |
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| 152 | const UInt absPartIdxCU); // CU's depth is taken from CU->getDepth(idx) |
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| 153 | |
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| 154 | TComTURecurse( TComTU &parentLevel, //Parent TU from which recursion children are derived |
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| 155 | const Bool bProcessLastOfLevel, //If true (and the split results in a "step-up" for chroma), the chroma TU is colocated with the last luma TU instead of the first |
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| 156 | const TU_SPLIT_MODE splitMode = QUAD_SPLIT, //DONT_SPLIT = create one new TU as a copy of its parent, VERTICAL_SPLIT = split the TU into top and bottom halves, QUAD_SPLIT = split the TU into four equal quadrants |
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| 157 | const Bool splitAtCurrentDepth = false, //Set true to keep the current depth when applying a vertical or quad split |
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| 158 | const ComponentID absPartIdxSourceComponent = COMPONENT_Y //Specifies which component of the parent TU should be used to initialise the absPartIdx of the first child and the absPartIdx step (this is needed when splitting a "stepped-up" chroma TU) |
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| 159 | ) |
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| 160 | : TComTU(parentLevel, bProcessLastOfLevel, splitMode, splitAtCurrentDepth, absPartIdxSourceComponent) { } |
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| 161 | |
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| 162 | Bool nextSection(const TComTU &parent); // returns true if there is another section to process, and prepares internal structures, else returns false |
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| 163 | }; |
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| 164 | |
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| 165 | //---------------------------------------------------------------------------------------------------------------------- |
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| 166 | |
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| 167 | #endif |
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