/*
* 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.NumOfHorizTilesL();
// Calculate the tile canvas
TDiv tDiv = TJ2kUtils::DivL( 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;
}