--- /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 <icl/imagecodec.h>
+#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;
+ }
+