mmplugins/imagingplugins/imagedisplay/plugins/mng/MngChunks.inl
changeset 0 40261b775718
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     1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 //
       
    15 
       
    16 /**
       
    17  @file
       
    18  @internalTechnology 
       
    19 */
       
    20 /*static*/
       
    21 inline
       
    22 TChunkId TChunkId::FromPtr(const TText8* aPtr)
       
    23 	{
       
    24 	TChunkId temp;
       
    25 	Mem::Copy(&temp, aPtr, sizeof(TChunkId));
       
    26 	return temp;
       
    27 	}
       
    28 
       
    29 inline
       
    30 TBool TChunkId::operator==(const TInt aRight) const
       
    31 	{
       
    32 	return (iChunkIdInt == aRight);
       
    33 	}
       
    34 
       
    35 inline
       
    36 TBool TChunkId::operator==(const TDesC8& aRight) const
       
    37 	{
       
    38 	__ASSERT_DEBUG(aRight.Length()==4, MngPanic(EPanicWrongChunkIdLength));
       
    39 	return (aRight.Compare( TPtrC8(iChunkIdChr, 4) ) == 0 );
       
    40 	}
       
    41 
       
    42 inline
       
    43 TBool TChunkId::operator!=(const TInt aRight) const
       
    44 	{
       
    45 	return !(*this==aRight);
       
    46 	}
       
    47 
       
    48 /*static*/
       
    49 inline
       
    50 TInt TMNGChunkHeader::RequiredData()
       
    51 		{
       
    52 		return sizeof(TInt32) + sizeof(TChunkId);
       
    53 		}
       
    54 
       
    55 inline
       
    56 TChunkCrc::TChunkCrc():iCrc((TInt32)(TUint32)~0)
       
    57 	{
       
    58 	}
       
    59 
       
    60 inline
       
    61 TChunkCrc::operator const TInt32&() const
       
    62 	{	
       
    63 	return iCrc;
       
    64 	}
       
    65 
       
    66 inline
       
    67 TMngChunk::TMngChunk(const TMNGChunkHeader& aHeader):iHeader(aHeader)
       
    68 	{
       
    69 	Crc32::Calc(iCalculatedCrc.iCrc, &iHeader.iChunkId.iChunkIdInt, sizeof(iHeader.iChunkId));
       
    70 	}
       
    71 
       
    72 inline
       
    73 TInt TMngChunk::RequiredData() const
       
    74 	{
       
    75 	return iHeader.iLength + sizeof(TInt32); // and Crc
       
    76 	}
       
    77 
       
    78 inline
       
    79 TMngRawChunk::TMngRawChunk(const TMNGChunkHeader& aHeader):TMngChunk(aHeader)
       
    80 	{
       
    81 	}
       
    82 
       
    83 inline 
       
    84 TUnknownChunk::TUnknownChunk(const TMNGChunkHeader& aHeader):TMngChunk(aHeader)
       
    85 	{
       
    86 	}
       
    87 
       
    88 inline
       
    89 TMhdrChunk::TMhdrChunk(const TMNGChunkHeader& aHeader):TMngChunk(aHeader) 
       
    90 	{
       
    91 	}
       
    92 
       
    93 inline 
       
    94 TDefiChunk::TDefiChunk(const TMNGChunkHeader& aHeader):TMngChunk(aHeader)
       
    95 														
       
    96 	{
       
    97 	Mem::Fill(&iObjectId, _FOFF(TDefiChunk, iBottomClippingBoundary) - _FOFF(TDefiChunk, iObjectId) 
       
    98 					+ sizeof(iBottomClippingBoundary) , 0);
       
    99 	iRightClippingBoundary	=-1;
       
   100 	}
       
   101 
       
   102 inline 
       
   103 TTermChunk::TTermChunk(const TMNGChunkHeader& aHeader):TMngChunk(aHeader),
       
   104 														iPostIterationAction(EMngShowLastFrameIndef),
       
   105 														iDelay(0),
       
   106 														iIterationMax(1)
       
   107 	{
       
   108 	}
       
   109 
       
   110 inline 
       
   111 TBackChunk::TBackChunk(const TMNGChunkHeader& aHeader):TMngChunk(aHeader),
       
   112 														iBgMandatory(EMngTermBgColorAndImgAdvisory)
       
   113 	{
       
   114 	}
       
   115 
       
   116 inline TMagnChunk::TMagnChunk(const TMNGChunkHeader& aHeader):TMngChunk(aHeader)
       
   117 	{
       
   118 	Mem::Fill(&iFirstMagnifiedObjId, _FOFF(TMagnChunk, iYMagnMethod) - 
       
   119 				_FOFF(TMagnChunk, iFirstMagnifiedObjId) + sizeof(iFirstMagnifiedObjId), 0);
       
   120 	iXMagnFactor =1;
       
   121 	}
       
   122 
       
   123 inline 
       
   124 TFramChunk::TFramChunk(const TMNGChunkHeader& aHeader):TMngChunk(aHeader),
       
   125 															iFramingMode(EMngFramDoNotChangeMode)
       
   126 	{
       
   127 	Mem::Fill(&iChangeInterFrmDelay, _FOFF(TFramChunk, iFirstSyncId)-_FOFF(TFramChunk, iChangeInterFrmDelay)+sizeof(iFirstSyncId), 0);
       
   128 	}
       
   129 
       
   130 inline 
       
   131 TLoopChunk::TLoopChunk(const TMNGChunkHeader& aHeader):TMngChunk(aHeader),
       
   132 														iNestLevel(0)
       
   133 	{
       
   134 	}
       
   135 
       
   136 inline 
       
   137 TEndlChunk::TEndlChunk(const TMNGChunkHeader& aHeader):TMngChunk(aHeader),
       
   138 															iNestLevel(0)
       
   139 	{
       
   140 	}
       
   141 
       
   142 inline
       
   143 const TUint8* TMngRawChunk::Data() const
       
   144 	{
       
   145 	return iBite;
       
   146 	}
       
   147 
       
   148 
       
   149