diff -r 000000000000 -r 469c91dae73b imagingmodules/jp2kcodec/Src/JP2KTileInfo.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/imagingmodules/jp2kcodec/Src/JP2KTileInfo.cpp Thu Dec 17 09:22:31 2009 +0200 @@ -0,0 +1,1323 @@ +/* +* Copyright (c) 2003, 2004 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of "Eclipse Public License v1.0" +* which accompanies this distribution, and is available +* at the URL "http://www.eclipse.org/legal/epl-v10.html". +* +* Initial Contributors: +* Nokia Corporation - initial contribution. +* +* Contributors: +* +* Description: CJ2kTileInfo class used to collect tile related information +* such as Tile Part Header, SOT marker and list of components. +* +*/ + + +// INCLUDE FILES +#include +#include "JP2KImageUtils.h" +#include "JP2KFormat.h" +#include "JP2KStreamReader.h" +#include "JP2KTileInfo.h" +#include "JP2KImageInfo.h" +#include "JP2KCodec.h" +#include "JP2KComponentInfo.h" + +// EXTERNAL DATA STRUCTURES + +// EXTERNAL FUNCTION PROTOTYPES + +// CONSTANTS + +// MACROS + +// LOCAL CONSTANTS AND MACROS + +// MODULE DATA STRUCTURES + +// LOCAL FUNCTION PROTOTYPES + +// FORWARD DECLARATIONS + +// ============================ MEMBER FUNCTIONS =============================== + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::NewLC +// Two-phased constructor. +// ----------------------------------------------------------------------------- +// +CJ2kTileInfo* CJ2kTileInfo::NewLC( CJ2kImageInfo& aImageInfo, TJ2kStreamReader& aReader ) + { + CJ2kTileInfo* self = new ( ELeave ) CJ2kTileInfo( aImageInfo, aReader ); + + CleanupStack::PushL( self ); + + return self; + } + +// Destructor +CJ2kTileInfo::~CJ2kTileInfo() + { + DoReleaseUnusedMarkers(); + + iComponentList.ResetAndDestroy(); + + delete iPpt; + iPpt = 0; + + delete iPptBuffer; + iPptBuffer = 0; + + // iPOC not owned - not deleted. + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::InitializeL +// Initialize the components in the tile. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +void CJ2kTileInfo::InitializeL() + { + const TSizMarker &sizMarker = iImageInfo.SizMarker(); + TUint16 numOfHorizTiles = iImageInfo.NumOfHorizTiles(); + + // Calculate the tile canvas + TDiv tDiv = TJ2kUtils::Div( iSot.iIsot, numOfHorizTiles ); + iTileCanvas.iTl = TPoint( Max( sizMarker.iXTOsiz + tDiv.rem * sizMarker.iXTsiz, sizMarker.iXOsiz ), + Max( sizMarker.iYTOsiz + tDiv.quot * sizMarker.iYTsiz, sizMarker.iYOsiz ) ); + iTileCanvas.iBr = TPoint( Min( sizMarker.iXTOsiz + ( tDiv.rem + 1 ) * sizMarker.iXTsiz, sizMarker.iXsiz ), + Min( sizMarker.iYTOsiz + ( tDiv.quot + 1 ) * sizMarker.iYTsiz, sizMarker.iYsiz ) ); + + CJ2kComponentInfo *component = 0; + for ( TUint16 index = 0; index < sizMarker.iCsiz; ++index ) + { + // Instantiate the components in the tile + component = CJ2kComponentInfo::NewLC( *this, index ); + User::LeaveIfError( iComponentList.Append( component ) ); + CleanupStack::Pop(); + } + + iLastN1 = iTileCanvas.iTl.iY; + iLastN2 = iTileCanvas.iTl.iX; + + // Initialize the end of layer, resolution level, component to process + iNumOfLayersPOC = NumOfLayers(); + iNumOfLevelsPOC = NumOfLevels(); + iNumOfComponentsPOC = sizMarker.iCsiz; + + if ( IsSpeedup() ) + { + iNumOfLevelsPOC = (TUint8)( iNumOfLevelsPOC - iImageInfo.LevelDrop() ); + } + + // Let iPOC points to the POC marker in Tile Part Header + iPOC = iTileMarker.iPoc; + if ( !iPOC ) + { + // Let iPOC points to the POC marker in the Main Header + iPOC = iImageInfo.MainMarker().iPoc; + } + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::AppendCOD +// Verify and append COD to the tile part header. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +void CJ2kTileInfo::AppendCOD( TCODMarker *aMarker, TUint32 aLength ) + { + if ( iSot.iTPsot == 0 ) + { + // Use only for the first tile part of a tile + if ( iTileMarker.iCod == 0 ) + { + iTileMarker.iCod = aMarker; + } + else + { + // No more than one COD per tile + delete aMarker; + aMarker = 0; + } + } + else + { + // Read but ignore it + delete aMarker; + aMarker = 0; + } + + if ( iTileLength ) + { + iTileLength -= aLength; + } + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::AppendCOCL +// Verify and append COC to the tile part header. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +void CJ2kTileInfo::AppendCOCL( TCOCMarker *aMarker, TUint32 aLength ) + { + if ( iSot.iTPsot == 0 ) + { + // Use only for the first tile part of a tile + TUint8 found = EFalse; + for ( TUint16 index = 0; index < iTileMarker.iCoc.Count(); ++index ) + { + if ( iTileMarker.iCoc[index]->iCcoc == aMarker->iCcoc ) + { + found = ETrue; + index = (TUint16)iTileMarker.iCoc.Count(); + } + } + if ( !found ) + { + User::LeaveIfError( iTileMarker.iCoc.Append( aMarker ) ); + } + else + { + // No more than one COC per component + delete aMarker; + aMarker = 0; + } + } + else + { + // Read but ignore it + delete aMarker; + aMarker = 0; + } + + if ( iTileLength ) + { + iTileLength -= aLength; + } + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::AppendQCD +// Verify and append QCD to the tile part header. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +void CJ2kTileInfo::AppendQCD( TQCDMarker *aMarker, TUint32 aLength ) + { + if ( iSot.iTPsot == 0 ) + { + // Use only for the first tile part of a tile + if ( iTileMarker.iQcd == 0 ) + { + iTileMarker.iQcd = aMarker; + } + else + { + // No more than one QCD per tile + delete aMarker; + aMarker = 0; + } + } + else + { + // Read but ignore it + delete aMarker; + aMarker = 0; + } + + if ( iTileLength ) + { + iTileLength -= aLength; + } + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::AppendQCCL +// Verify and append QCC to the tile part header. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +void CJ2kTileInfo::AppendQCCL( TQCCMarker *aMarker, TUint32 aLength ) + { + if ( iSot.iTPsot == 0 ) + { + // Use only for the first tile part of a tile + TUint8 found = EFalse; + for ( TUint16 index = 0; index < iTileMarker.iQcc.Count(); ++index ) + { + if ( iTileMarker.iQcc[index]->iCqcc == aMarker->iCqcc ) + { + found = ETrue; + index = (TUint16)iTileMarker.iQcc.Count(); + } + } + if ( !found ) + { + User::LeaveIfError( iTileMarker.iQcc.Append( aMarker ) ); + } + else + { + // No more than one QCC per component + delete aMarker; + aMarker = 0; + } + } + else + { + // read but ignore it + delete aMarker; + aMarker = 0; + } + + if ( iTileLength ) + { + iTileLength -= aLength; + } + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::AppendRGNL +// Verify and append RGN to the tile part header. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +void CJ2kTileInfo::AppendRGNL( TRGNMarker *aMarker, TUint32 aLength ) + { + if ( iSot.iTPsot == 0 ) + { + // Use only for the first tile part of a tile + TUint8 found = EFalse; + for ( TUint16 index = 0; index < iTileMarker.iRgn.Count(); ++index ) + { + if ( iTileMarker.iRgn[index]->iCrgn == aMarker->iCrgn ) + { + found = ETrue; + index = (TUint16)iTileMarker.iRgn.Count(); + } + } + if ( !found ) + { + User::LeaveIfError( iTileMarker.iRgn.Append( aMarker ) ); + } + else + { + // No more than one RGN per component + delete aMarker; + aMarker = 0; + } + } + else + { + // Read but ignore it + delete aMarker; + aMarker = 0; + } + + if ( iTileLength ) + { + iTileLength -= aLength; + } + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::AppendPOCL +// Verify and append POC to the tile part header. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +void CJ2kTileInfo::AppendPOCL( TPOCMarker *aMarker, TUint32 aLength ) + { + if ( iTileMarker.iPoc == 0 ) + { + iTileMarker.iPoc = aMarker; + } + else + { + // Appending the content of the POC to the + // existing tile part header POC + for ( TInt index = 0; index < aMarker->iPpoc.Count(); ++index ) + { + User::LeaveIfError( iTileMarker.iPoc->iRSpoc.Append( aMarker->iRSpoc[index] ) ); + User::LeaveIfError( iTileMarker.iPoc->iCSpoc.Append( aMarker->iCSpoc[index] ) ); + User::LeaveIfError( iTileMarker.iPoc->iLYEpoc.Append( aMarker->iLYEpoc[index] ) ); + User::LeaveIfError( iTileMarker.iPoc->iREpoc.Append( aMarker->iREpoc[index] ) ); + User::LeaveIfError( iTileMarker.iPoc->iCEpoc.Append( aMarker->iCEpoc[index] ) ); + User::LeaveIfError( iTileMarker.iPoc->iPpoc.Append( aMarker->iPpoc[index] ) ); + } + // At most one POC may exist in tile part header + delete aMarker; + aMarker = 0; + } + + if ( iTileLength ) + { + iTileLength -= aLength; + } + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::AppendCOML +// Verify and append COM to the tile part header. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +void CJ2kTileInfo::AppendCOML( TCOMMarker *aMarker, TUint32 aLength ) + { + User::LeaveIfError( iTileMarker.iCom.Append( aMarker ) ); + + if ( iTileLength ) + { + iTileLength -= aLength; + } + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::AppendPPTL +// Verify and append PPT to the tile part header. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +void CJ2kTileInfo::AppendPPTL( TPPTMarker *aMarker, TUint32 aLength ) + { + TUint8 inserted = EFalse; + + // Insert the new PPT marker into the right order + for ( TUint16 index = 0; index < iTileMarker.iPpt.Count(); ++index ) + { + // Order by iZppt of the PPT marker + if ( iTileMarker.iPpt[index]->iZppt > aMarker->iZppt ) + { + User::LeaveIfError( iTileMarker.iPpt.Insert( aMarker, index ) ); + inserted = ETrue; + index = (TUint16)( iTileMarker.iPpt.Count() ); + } + } + + if ( !inserted ) + { + User::LeaveIfError( iTileMarker.iPpt.Append( aMarker ) ); + } + if ( iTileLength ) + { + iTileLength -= aLength; + } + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::AppendPLTL +// Verify and append PLT to the tile part header. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +void CJ2kTileInfo::AppendPLTL( TPLTMarker *aMarker, TUint32 aLength ) + { + TUint8 inserted = EFalse; + + // Insert the new PLT marker into the right order + for ( TUint16 index = 0; index < iTileMarker.iPlt.Count(); ++index ) + { + // Order by iZplt of the PLT marker + if ( iTileMarker.iPlt[index]->iZplt > aMarker->iZplt ) + { + User::LeaveIfError( iTileMarker.iPlt.Insert( aMarker, index ) ); + inserted = ETrue; + index = (TUint16)( iTileMarker.iPlt.Count() ); + } + } + + if ( !inserted ) + { + User::LeaveIfError( iTileMarker.iPlt.Append( aMarker ) ); + } + + if ( iTileLength ) + { + iTileLength -= aLength; + } + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::ReadBitStreamL +// Parsing the bitstream data based on progression order. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +void CJ2kTileInfo::ReadBitStreamL( TUint8 aBool ) + { + SetCheckMarker( aBool ); + if ( iPOC ) + { + TUint8 incomplete = EFalse; + while ( iLastPOC < iPOC->iPpoc.Count() ) + { + if ( !iDoLoadPOC ) + { + // Reload progression order change from POC marker + iDoLoadPOC = ETrue; + iLastLayer = 0; + iLastLevelOrig = iLastLevel = (TUint8)iPOC->iRSpoc[iLastPOC]; + iLastComponentOrig = iLastComponent = (TUint16)iPOC->iCSpoc[iLastPOC]; + + iNumOfLayersPOC = (TUint16)iPOC->iLYEpoc[iLastPOC]; + if ( iNumOfLayersPOC > NumOfLayers() ) + { + iNumOfLayersPOC = NumOfLayers(); + } + + iNumOfLevelsPOC = (TUint8)( iPOC->iREpoc[iLastPOC] - 1 ); + if ( iNumOfLevelsPOC > (TUint8)NumOfLevels() ) + { + iNumOfLevelsPOC = (TUint8)NumOfLevels(); + } + + iNumOfComponentsPOC = (TUint16)iPOC->iCEpoc[iLastPOC]; + if ( iNumOfComponentsPOC > NumOfComponents() ) + { + iNumOfComponentsPOC = NumOfComponents(); + } + + for ( TUint16 index = 0; index < iNumOfComponentsPOC; ++index ) + { + iComponentList[index]->ResetLastPacketProcessed(); + } + + iLastN2 = iTileCanvas.iTl.iX; + iLastN1 = iTileCanvas.iTl.iY; + } + + switch ( iPOC->iPpoc[iLastPOC] ) + { + case EProgression_L_R_C_P: + { + incomplete = LRCPProgressionL(); + break; + } + case EProgression_R_L_C_P: + { + incomplete = RLCPProgressionL(); + break; + } + case EProgression_R_P_C_L: + { + incomplete = RPCLProgressionL(); + break; + } + case EProgression_P_C_R_L: + { + incomplete = PCRLProgressionL(); + break; + } + case EProgression_C_P_R_L: + { + incomplete = CPRLProgressionL(); + break; + } + default: + { + // Unrecognized progressin order + User::Leave( KErrCorrupt ); + break; + } + } + + if ( incomplete ) + { + break; //lint !e960 It is Ok to break here. + } + + if ( iLastPOC == iPOC->iPpoc.Count() && !iDoLoadPOC ) + { + // Try to use Main POC if it is currently using Tile POC + if ( iTileMarker.iPoc && iPOC == iTileMarker.iPoc ) + { + if ( iImageInfo.MainMarker().iPoc ) + { + iPOC = iImageInfo.MainMarker().iPoc; + iLastPOC = 0; + } + } + } + } + } + else + { + // Without POC changes + switch ( ProgressionOrder() ) + { + case EProgression_L_R_C_P: + { + LRCPProgressionL(); + break; + } + case EProgression_R_L_C_P: + { + RLCPProgressionL(); + break; + } + case EProgression_R_P_C_L: + { + RPCLProgressionL(); + break; + } + case EProgression_P_C_R_L: + { + PCRLProgressionL(); + break; + } + case EProgression_C_P_R_L: + { + CPRLProgressionL(); + break; + } + default: + { + // Unrecognized progression order + User::Leave( KErrCorrupt ); + break; + } + } + } + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::ColorTransformation +// Get the color transformation. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +TUint8 CJ2kTileInfo::ColorTransformation() const + { + return ( iTileMarker.iCod ) ? + iTileMarker.iCod->iColorTransformation : + iImageInfo.MainMarker().iCod.iColorTransformation; + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::ProgressionOrder +// Get the progression order. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +TUint8 CJ2kTileInfo::ProgressionOrder() const + { + return ( iTileMarker.iCod ) ? + iTileMarker.iCod->iProgressionOrder : + iImageInfo.MainMarker().iCod.iProgressionOrder; + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::NumOfLayers +// Get the number of layers. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +TUint16 CJ2kTileInfo::NumOfLayers() const + { + return ( iTileMarker.iCod ) ? + iTileMarker.iCod->iNumOfLayers : + iImageInfo.MainMarker().iCod.iNumOfLayers; + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::NumOfLevels +// Get the number of resolution level. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +TUint8 CJ2kTileInfo::NumOfLevels() const + { + TUint8 maxLevel = 0; + for ( TUint16 index = 0; index < iImageInfo.NumOfComponents(); ++index ) + { + maxLevel = Max( maxLevel, iComponentList[index]->Levels() ); + } + + return maxLevel; + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::GetMinGrid +// Get the minimum grid among the components in the tile. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +void CJ2kTileInfo::GetMinGrid( TSize &aGrid ) const + { + TSize tmpGrid; + aGrid = iComponentList[0]->MinGrid(); + for ( TUint16 index = 1; index < iImageInfo.NumOfComponents(); ++index ) + { + tmpGrid = iComponentList[index]->MinGrid(); + aGrid.iWidth = Min( aGrid.iWidth, tmpGrid.iWidth ); + aGrid.iHeight = Min( aGrid.iHeight, tmpGrid.iHeight ); + } + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::UsePPTL +// Set up to read the packet header from the PPT marker. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +void CJ2kTileInfo::UsePPTL() + { + if ( !iPpt ) + { + iPpt = new ( ELeave ) TPPTStream; + } + Mem::FillZ( iPpt, sizeof( TPPTStream ) ); + + // Remove the previous ppt buffer + delete iPptBuffer; + iPptBuffer = 0; + + if ( iTileMarker.iPpt.Count() > 1 ) + { + // Concatenate all PPT markers into one + TInt bytes = 0; + TInt index = 0; + for ( index = 0; index < iTileMarker.iPpt.Count(); ++index ) + { + bytes += iTileMarker.iPpt[index]->iIppt->Length(); + } + + iPptBuffer = HBufC8::NewL( bytes ); + iPpt->iPtrEnd = (TUint32)bytes; + TPtr8 ptr = iPptBuffer->Des(); + for ( index = 0; index < iTileMarker.iPpt.Count(); ++index ) + { + ptr.Append( iTileMarker.iPpt[index]->iIppt->Ptr(), iTileMarker.iPpt[index]->iIppt->Length() ); + } + } + else + { + // Use the only PPT marker + // transfer the ownership of the buffer from PPT to iPptBuffer + iPptBuffer = iTileMarker.iPpt[0]->iIppt; + iPpt->iPtrEnd = iPptBuffer->Length(); + iTileMarker.iPpt[0]->iIppt = 0; + } + + // PPT markers can be released + iTileMarker.iPpt.ResetAndDestroy(); + iPacketHeaderReader = STATIC_CAST( MJ2kPacketHeaderReader*, this ); + } + +// ----------------------------------------------------------------------------- +// From MJ2kPacketHeaderReader +// CJ2kTileInfo::ReadEPHMarker +// Try to consume the EPH marker if there is one. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +TUint8 CJ2kTileInfo::ReadEPHMarker() + { + if ( iPpt && ( iPpt->iPtrEnd - iPpt->iPtr ) >= 2 ) + { + const TUint8 *ptr = iPptBuffer->Ptr(); + ptr += iPpt->iPtr; + if ( PtrReadUtil::ReadBigEndianUint16( ptr ) == KEPH ) + { + iPpt->iPtr += 2; + } + } + + return EFalse; + } + +// ----------------------------------------------------------------------------- +// From MJ2kPacketHeaderReader +// CJ2kTileInfo::ReadBit +// Read a bit from the packet header stream. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +TUint8 CJ2kTileInfo::ReadBit( TUint8& aBit ) + { + if ( iPpt->iPos == 0 ) + { + if ( iPpt->iPtr < iPpt->iPtrEnd ) + { + // Stream contains some packet header data + iPpt->iData = ( *iPptBuffer )[iPpt->iPtr++]; + iPpt->iPos = iPpt->iNextPos; + if ( iPpt->iNextPos == 0x08 && iPpt->iData == 0xff ) + { + iPpt->iNextPos = 0x07; + } + else + { + iPpt->iNextPos = 0x08; + } + } + else + { + // No more data + return ETrue; + } + } + aBit = (TUint8)( ( iPpt->iData >> ( --iPpt->iPos ) ) & 0x01 ); + + return EFalse; + } + +// ----------------------------------------------------------------------------- +// From MJ2kPacketHeaderReader +// CJ2kTileInfo::ReadBits +// Read some bits from the packet header stream. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +TUint8 CJ2kTileInfo::ReadBits( TUint8& aBit, TUint8 aBitLen ) + { + aBit = (TUint8)0; + TUint8 bit = 0; + for ( TInt8 index = (TInt8)( aBitLen - 1 ); index >= 0; --index ) + { + if ( !ReadBit( bit ) ) + { + aBit |= ( bit << index ); + } + else + { + return ETrue; + } + } + + return EFalse; + } + +// ----------------------------------------------------------------------------- +// From MJ2kPacketHeaderReader +// CJ2kTileInfo::ReadBits +// Read some bits from the packet header stream. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +TUint8 CJ2kTileInfo::ReadBits( TUint32& aBit, TUint8 aBitLen ) + { + aBit = ( TUint32 )0; + TUint8 bit = 0; + for ( TInt8 index = ( TInt8 )( aBitLen - 1 ); index >= 0; --index ) + { + if ( !ReadBit( bit ) ) + { + aBit |= ( bit << index ); + } + else + { + return ETrue; + } + } + + return EFalse; + } + +// ----------------------------------------------------------------------------- +// From MJ2kPacketHeaderReader +// CJ2kTileInfo::StartReadBit +// Start reading from packet header stream. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +TUint8 CJ2kTileInfo::StartReadBit() + { + if ( iPpt && iPpt->iPtr < iPpt->iPtrEnd ) + { + // Stream contains some packet header data + iPpt->iData = ( *iPptBuffer )[iPpt->iPtr++]; + iPpt->iPos = iPpt->iNextPos = 0x08; + if ( iPpt->iData == 0xff ) + { + iPpt->iNextPos = 0x07; + } + + return EFalse; + } + return ETrue; + } + +// ----------------------------------------------------------------------------- +// From MJ2kPacketHeaderReader +// CJ2kTileInfo::AlignReader +// Align the stream to the next byte boundary if necessary. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +void CJ2kTileInfo::AlignReader() + { + if ( iPpt->iNextPos == 0x07 ) + { + if ( iPpt->iPtr < iPpt->iPtrEnd ) + { + ++iPpt->iPtr; + } + } + iPpt->iData = iPpt->iPos = iPpt->iNextPos = 0; + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::DoReleaseUnusedMarkers +// Release unused markers in tile part header. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +void CJ2kTileInfo::DoReleaseUnusedMarkers() + { + delete iPptBuffer; + iPptBuffer = 0; + + iTileMarker.iPlt.ResetAndDestroy(); + iTileMarker.iCom.ResetAndDestroy(); + + delete iTileMarker.iPoc; + iTileMarker.iPoc = 0; + + delete iTileMarker.iCod; + iTileMarker.iCod = 0; + + iTileMarker.iCoc.ResetAndDestroy(); + iTileMarker.iRgn.ResetAndDestroy(); + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::CJ2kTileInfo +// C++ default constructor can NOT contain any code, that +// might leave. +// ----------------------------------------------------------------------------- +// +CJ2kTileInfo::CJ2kTileInfo( CJ2kImageInfo& aImageInfo, TJ2kStreamReader& aReader ) : + iComponentList( 3 ), + iImageInfo( aImageInfo ), + iReader( aReader ) + { + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::LRCPProgressionL +// Parse the bitstream with LRCP progression order. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +TUint8 CJ2kTileInfo::LRCPProgressionL() + { + TUint16 marker = 0; + TUint8 compIncomplete = EFalse; + + // For each layer + while ( iLastLayer < iNumOfLayersPOC ) + { + // For each resolution level + while ( iLastLevel <= iNumOfLevelsPOC ) + { + // For each component + while ( iLastComponent < iNumOfComponentsPOC ) + { + compIncomplete = iComponentList[iLastComponent]->LRCPProgressionL( *this ); + if ( compIncomplete ) + { + // Underflow + return compIncomplete; + } + + if ( IsPOC() ) + { + // Check if we found next SOT or EOC + marker = PtrReadUtil::ReadBigEndianUint16( iReader.iPtr ); + if ( marker == KSOT || marker == KEOC ) + { + compIncomplete = ETrue; + return compIncomplete; + } + } + + ++iLastComponent; + } + + iLastComponent = iLastComponentOrig; + ++iLastLevel; + + if ( IsCheckMarker() ) + { + // Check if we found next SOT or EOC + // it signals the end of one LEVEL + marker = PtrReadUtil::ReadBigEndianUint16( iReader.iPtr ); + if ( marker == KSOT || marker == KEOC ) + { + compIncomplete = ETrue; + return compIncomplete; + } + } + } + + iLastLevel = iLastLevelOrig; + ++iLastLayer; + } + + // Continue using the next POC + ++iLastPOC; + iDoLoadPOC = EFalse; + + return compIncomplete; + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::RLCPProgressionL +// Parse the bitstream with RLCP progression order. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +TUint8 CJ2kTileInfo::RLCPProgressionL() + { + TUint16 marker = 0; + TUint8 compIncomplete = EFalse; + + // For each resolution level + while ( iLastLevel <= iNumOfLevelsPOC ) + { + // For each layer + while ( iLastLayer < iNumOfLayersPOC ) + { + // For each component + while ( iLastComponent < iNumOfComponentsPOC ) + { + compIncomplete = iComponentList[iLastComponent]->LRCPProgressionL( *this ); + if ( compIncomplete ) + { + // Underflow + return compIncomplete; + } + + if ( IsPOC() ) + { + // Check if we found next SOT or EOC + marker = PtrReadUtil::ReadBigEndianUint16( iReader.iPtr ); + if ( marker == KSOT || marker == KEOC ) + { + compIncomplete = ETrue; + return compIncomplete; + } + } + + ++iLastComponent; + } + + iLastComponent = iLastComponentOrig; + ++iLastLayer; + + if ( IsCheckMarker() ) + { + // Check if we found next SOT or EOC + // it signals the end of one LAYER + marker = PtrReadUtil::ReadBigEndianUint16( iReader.iPtr ); + if ( marker == KSOT || marker == KEOC ) + { + + // If we are at the end of layers, we have to reset + // layers and move to next resolution level + if(iLastLayer==iNumOfLayersPOC) + { + iLastLayer = 0; + ++iLastLevel; + } + + compIncomplete = ETrue; + return compIncomplete; + } + } + } + + iLastLayer = 0; + ++iLastLevel; + } + + // Continue using the next POC + ++iLastPOC; + iDoLoadPOC = EFalse; + + return compIncomplete; + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::RPCLProgressionL +// Parse the bitstream with RPCL progression order. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +TUint8 CJ2kTileInfo::RPCLProgressionL() + { + TUint16 marker = 0; + TUint8 compIncomplete = EFalse; + + TSize minGrid( 0, 0 ); + GetMinGrid( minGrid ); + + // Check that no divided by zero calculation are done. + if ( minGrid.iWidth == 0 || minGrid.iHeight == 0 ) + { + User::Leave( KErrCorrupt ); + } + + // For each resolution level + while ( iLastLevel <= iNumOfLevelsPOC ) + { + // For each position in vertical direction + while ( iLastN1 < iTileCanvas.iBr.iY ) + { + // For each position in horizontal direction + while ( iLastN2 < iTileCanvas.iBr.iX ) + { + // For each component + while ( iLastComponent < iNumOfComponentsPOC ) + { + compIncomplete = iComponentList[iLastComponent]->RPCLProgressionL( *this ); + if ( compIncomplete ) + { + // Underflow + return compIncomplete; + } + + if ( IsPOC() ) + { + // Check if we found next SOT or EOC + // it signals the end of one Precinct + marker = PtrReadUtil::ReadBigEndianUint16( iReader.iPtr ); + if ( marker == KSOT || marker == KEOC ) + { + compIncomplete = ETrue; + return compIncomplete; + } + } + + ++iLastComponent; + } + + iLastComponent = iLastComponentOrig; + iLastN2 += ( minGrid.iWidth - ( iLastN2 % minGrid.iWidth ) ); + + if ( IsCheckMarker() ) + { + // Check if we found next SOT or EOC + // it signals the end of one Precinct + marker = PtrReadUtil::ReadBigEndianUint16( iReader.iPtr ); + if ( marker == KSOT || marker == KEOC ) + { + + // If we are at the end of horizontal precincts, move to + // next row of vertical precincts + if(iLastN2 >= iTileCanvas.iBr.iX) + { + iLastN2 = iTileCanvas.iTl.iX; + iLastN1 += ( minGrid.iHeight - ( iLastN1 % minGrid.iHeight ) ); + // If we are at the end of vertical precincts, move to next + // resolution level + if(iLastN1 >= iTileCanvas.iBr.iY) + { + iLastN1 = iTileCanvas.iTl.iY; + // Advance to next level to avoid a situation where we would + // return without reading any bytes from the frame the next + // time we enter this function + ++iLastLevel; + } + } + + compIncomplete = ETrue; + return compIncomplete; + } + } + } + + iLastN2 = iTileCanvas.iTl.iX; + iLastN1 += ( minGrid.iHeight - ( iLastN1 % minGrid.iHeight ) ); + } + + iLastN2 = iTileCanvas.iTl.iX; + iLastN1 = iTileCanvas.iTl.iY; + ++iLastLevel; + } + + // Continue using the next POC + ++iLastPOC; + iDoLoadPOC = EFalse; + + return compIncomplete; + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::PCRLProgressionL +// Parse the bitstream with PCRL progression order. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +TUint8 CJ2kTileInfo::PCRLProgressionL() + { + TUint16 marker = 0; + TUint8 compIncomplete = EFalse; + + TSize minGrid; + GetMinGrid( minGrid ); + + // Check that no divided by zero calculation are done. + if ( minGrid.iWidth == 0 || minGrid.iHeight == 0 ) + { + User::Leave( KErrCorrupt ); + } + + // For each position in vertical direction + while ( iLastN1 < iTileCanvas.iBr.iY ) + { + // For each position in horizontal direction + while ( iLastN2 < iTileCanvas.iBr.iX ) + { + // For each component + while ( iLastComponent < iNumOfComponentsPOC ) + { + // For each resolution level + while ( iLastLevel <= iNumOfLevelsPOC ) + { + compIncomplete = iComponentList[iLastComponent]->CPRLProgressionL( *this ); + if ( compIncomplete ) + { + // Underflow + return compIncomplete; + } + + if ( IsPOC() ) + { + // Check if we found next SOT or EOC + // it signals the end of one Precinct + marker = PtrReadUtil::ReadBigEndianUint16( iReader.iPtr ); + if ( marker == KSOT || marker == KEOC ) + { + compIncomplete = ETrue; + return compIncomplete; + } + } + + ++iLastLevel; + } + + iLastLevel = iLastLevelOrig; + ++iLastComponent; + + if ( IsCheckMarker() ) + { + // Check if we found next SOT or EOC + // it signals the end of one Precinct + marker = PtrReadUtil::ReadBigEndianUint16( iReader.iPtr ); + if ( marker == KSOT || marker == KEOC ) + { + compIncomplete = ETrue; + return compIncomplete; + } + } + } + + iLastComponent = iLastComponentOrig; + iLastN2 += ( minGrid.iWidth - ( iLastN2 % minGrid.iWidth ) ); + } + + iLastN2 = iTileCanvas.iTl.iX; + iLastN1 += ( minGrid.iHeight - ( iLastN1 % minGrid.iHeight ) ); + } + + // Continue using the next POC + ++iLastPOC; + iDoLoadPOC = EFalse; + + return compIncomplete; + } + +// ----------------------------------------------------------------------------- +// CJ2kTileInfo::CPRLProgressionL +// Parse the bitstream with CPRL progression order. +// (other items were commented in a header). +// ----------------------------------------------------------------------------- +// +TUint8 CJ2kTileInfo::CPRLProgressionL() + { + TUint16 marker = 0; + TUint8 compIncomplete = EFalse; + + TSize minGrid; + GetMinGrid( minGrid ); + + // Check that no divided by zero calculation are done. + if ( minGrid.iWidth == 0 || minGrid.iHeight == 0 ) + { + User::Leave( KErrCorrupt ); + } + + // For each component + while ( iLastComponent < iNumOfComponentsPOC ) + { + // For each position in vertical direction + while ( iLastN1 < iTileCanvas.iBr.iY ) + { + // For each position in horizontal direction + while ( iLastN2 < iTileCanvas.iBr.iX ) + { + // For each resolution level + while ( iLastLevel <= iNumOfLevelsPOC ) + { + compIncomplete = iComponentList[iLastComponent]->CPRLProgressionL( *this ); + if ( compIncomplete ) + { + // Underflow + return compIncomplete; + } + + if ( IsPOC() ) + { + // Check if we found next SOT or EOC + // it signals the end of one Precinct + marker = PtrReadUtil::ReadBigEndianUint16( iReader.iPtr ); + if ( marker == KSOT || marker == KEOC ) + { + compIncomplete = ETrue; + return compIncomplete; + } + } + + ++iLastLevel; + } + + iLastLevel = iLastLevelOrig; + iLastN2 += ( minGrid.iWidth - ( iLastN2 % minGrid.iWidth ) ); + + if ( IsCheckMarker() ) + { + // Check if we found next SOT or EOC + // it signals the end of one Precinct + marker = PtrReadUtil::ReadBigEndianUint16( iReader.iPtr ); + if ( marker == KSOT || marker == KEOC ) + { + compIncomplete = ETrue; + return compIncomplete; + } + } + } + + iLastN2 = iTileCanvas.iTl.iX; + iLastN1 += ( minGrid.iHeight - ( iLastN1 % minGrid.iHeight ) ); + } + + iLastN2 = iTileCanvas.iTl.iX; + iLastN1 = iTileCanvas.iTl.iY; + ++iLastComponent; + } + + // Continue using the next POC + ++iLastPOC; + iDoLoadPOC = EFalse; + + return compIncomplete; + } +