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/* The copyright in this software is being made available under the BSD
* License, included below. This software may be subject to other third party
* and contributor rights, including patent rights, and no such rights are
* granted under this license.
*
* Copyright (c) 2010-2019, ITU/ISO/IEC
Karsten Suehring
committed
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* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "DepQuant.h"
#include "TrQuant.h"
#include "CodingStructure.h"
#include "UnitTools.h"
#include <bitset>
namespace DQIntern
{
/*================================================================================*/
/*===== =====*/
/*===== R A T E E S T I M A T O R =====*/
/*===== =====*/
/*================================================================================*/
struct NbInfoSbb
{
uint8_t num;
uint8_t inPos[5];
};
struct NbInfoOut
{
uint16_t maxDist;
uint16_t num;
uint16_t outPos[5];
};
struct CoeffFracBits
{
int32_t bits[6];
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};
enum ScanPosType { SCAN_ISCSBB = 0, SCAN_SOCSBB = 1, SCAN_EOCSBB = 2 };
struct ScanInfo
{
ScanInfo() {}
int sbbSize;
int numSbb;
int scanIdx;
int rasterPos;
int sbbPos;
int insidePos;
bool eosbb;
ScanPosType spt;
unsigned sigCtxOffsetNext;
unsigned gtxCtxOffsetNext;
int nextInsidePos;
NbInfoSbb nextNbInfoSbb;
int nextSbbRight;
int nextSbbBelow;
};
class Rom;
struct TUParameters
{
TUParameters ( const Rom& rom, const unsigned width, const unsigned height, const ChannelType chType );
~TUParameters()
{
delete [] m_scanInfo;
}
ChannelType m_chType;
unsigned m_width;
unsigned m_height;
unsigned m_numCoeff;
unsigned m_numSbb;
unsigned m_log2SbbWidth;
unsigned m_log2SbbHeight;
unsigned m_log2SbbSize;
unsigned m_sbbSize;
unsigned m_sbbMask;
unsigned m_widthInSbb;
unsigned m_heightInSbb;
CoeffScanType m_scanType;
const unsigned* m_scanSbbId2SbbPos;
const unsigned* m_scanId2BlkPos;
const unsigned* m_scanId2PosX;
const unsigned* m_scanId2PosY;
const NbInfoSbb* m_scanId2NbInfoSbb;
const NbInfoOut* m_scanId2NbInfoOut;
ScanInfo* m_scanInfo;
private:
void xSetScanInfo( ScanInfo& scanInfo, int scanIdx );
};
class Rom
{
public:
Rom() : m_scansInitialized(false) {}
~Rom() { xUninitScanArrays(); }
void init () { xInitScanArrays(); }
const NbInfoSbb* getNbInfoSbb( int hd, int vd ) const { return m_scanId2NbInfoSbbArray[hd][vd]; }
const NbInfoOut* getNbInfoOut( int hd, int vd ) const { return m_scanId2NbInfoOutArray[hd][vd]; }
const TUParameters* getTUPars ( const CompArea& area, const ComponentID compID ) const
{
return m_tuParameters[g_aucLog2[area.width]][g_aucLog2[area.height]][toChannelType(compID)];
}
private:
void xInitScanArrays ();
void xUninitScanArrays ();
private:
bool m_scansInitialized;
NbInfoSbb* m_scanId2NbInfoSbbArray[ MAX_CU_DEPTH+1 ][ MAX_CU_DEPTH+1 ];
NbInfoOut* m_scanId2NbInfoOutArray[ MAX_CU_DEPTH+1 ][ MAX_CU_DEPTH+1 ];
TUParameters* m_tuParameters [ MAX_CU_DEPTH+1 ][ MAX_CU_DEPTH+1 ][ MAX_NUM_CHANNEL_TYPE ];
};
void Rom::xInitScanArrays()
{
if( m_scansInitialized )
{
return;
}
::memset( m_scanId2NbInfoSbbArray, 0, sizeof(m_scanId2NbInfoSbbArray) );
::memset( m_scanId2NbInfoOutArray, 0, sizeof(m_scanId2NbInfoOutArray) );
::memset( m_tuParameters, 0, sizeof(m_tuParameters) );
uint32_t raster2id[ MAX_CU_SIZE * MAX_CU_SIZE ];
for( int hd = 1; hd <= MAX_CU_DEPTH; hd++ )
{
for( int vd = 1; vd <= MAX_CU_DEPTH; vd++ )
{
const uint32_t blockWidth = (1 << hd);
const uint32_t blockHeight = (1 << vd);
const uint32_t totalValues = blockWidth * blockHeight;
const uint32_t log2CGWidth = (blockWidth & 3) + (blockHeight & 3) > 0 ? 1 : 2;
const uint32_t log2CGHeight = (blockWidth & 3) + (blockHeight & 3) > 0 ? 1 : 2;
const uint32_t groupWidth = 1 << log2CGWidth;
const uint32_t groupHeight = 1 << log2CGHeight;
const uint32_t groupSize = groupWidth * groupHeight;
const CoeffScanType scanType = SCAN_DIAG;
const SizeType blkWidthIdx = gp_sizeIdxInfo->idxFrom( blockWidth );
const SizeType blkHeightIdx = gp_sizeIdxInfo->idxFrom( blockHeight );
const uint32_t* scanId2RP = g_scanOrder [SCAN_GROUPED_4x4][scanType][blkWidthIdx][blkHeightIdx];
const uint32_t* scanId2X = g_scanOrderPosXY[SCAN_GROUPED_4x4][scanType][blkWidthIdx][blkHeightIdx][0];
const uint32_t* scanId2Y = g_scanOrderPosXY[SCAN_GROUPED_4x4][scanType][blkWidthIdx][blkHeightIdx][1];
NbInfoSbb*& sId2NbSbb = m_scanId2NbInfoSbbArray[hd][vd];
NbInfoOut*& sId2NbOut = m_scanId2NbInfoOutArray[hd][vd];
sId2NbSbb = new NbInfoSbb[ totalValues ];
sId2NbOut = new NbInfoOut[ totalValues ];
for( uint32_t scanId = 0; scanId < totalValues; scanId++ )
{
raster2id[ scanId2RP[ scanId ] ] = scanId;
}
for( unsigned scanId = 0; scanId < totalValues; scanId++ )
{
const int posX = scanId2X [ scanId ];
const int posY = scanId2Y [ scanId ];
const int rpos = scanId2RP[ scanId ];
{
//===== inside subband neighbours =====
NbInfoSbb& nbSbb = sId2NbSbb[ scanId ];
const int begSbb = scanId - ( scanId & (groupSize-1) ); // first pos in current subblock
int cpos[5];
cpos[0] = ( posX < blockWidth -1 ? ( raster2id[rpos+1 ] - begSbb < groupSize ? raster2id[rpos+1 ] - begSbb : 0 ) : 0 );
cpos[1] = ( posX < blockWidth -2 ? ( raster2id[rpos+2 ] - begSbb < groupSize ? raster2id[rpos+2 ] - begSbb : 0 ) : 0 );
cpos[2] = ( posX < blockWidth -1 && posY < blockHeight-1 ? ( raster2id[rpos+1+blockWidth] - begSbb < groupSize ? raster2id[rpos+1+blockWidth] - begSbb : 0 ) : 0 );
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