author | Ross Qin <ross.qin@nokia.com> |
Thu, 28 Oct 2010 11:18:50 +0800 | |
changeset 667 | a3b39a14147a |
parent 0 | 044383f39525 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the License "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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|
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|
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#ifndef __RCOFSTRM_H__ |
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#define __RCOFSTRM_H__ |
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|
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#if defined(__VC32__) && !defined(__MSVCDOTNET__) |
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#pragma warning( disable : 4710 ) // function not inlined |
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#endif |
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#if defined(__MSVCDOTNET__) || defined(__TOOLS2__) |
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#include <fstream> |
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using std::ofstream; |
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#else //!__MSVCDOTNET__ |
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#include <fstream.h> |
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#endif //__MSVCDOTNET__ |
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#include "ASTRING.H" |
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#include "NUMVAL.H" |
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#include "ARRAY.H" |
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class RCBinaryStream |
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{ |
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public: |
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RCBinaryStream(); |
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~RCBinaryStream(); |
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void OpenForAppend(const String& aFileName); |
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int IsOpen(); |
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RCBinaryStream& operator<<(char aChar); |
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RCBinaryStream& operator<<(char* aCharPtr); |
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static int SizeOfCompressedInteger(unsigned int aInteger); |
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void WriteCompressedInteger(unsigned int aInteger); |
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void Write(const unsigned char* aCharPtr, unsigned long aCount); |
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unsigned long GetPosition(); |
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void SetPosition(unsigned long NewPosition); |
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private: |
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ofstream iOs; |
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}; |
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class ResourceDataStream // this class knows about resources that contain compressed Unicode - i.e. that each run of alternating compressed-Unicode and other-stuff needs to be preceded by a 1-2 byte run-length |
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{ |
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public: |
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ResourceDataStream(); |
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~ResourceDataStream(); |
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void StartOfBlockWithSizePrefix(DataType aDataTypeOfSizePrefix); // StartOfBlockWithSizePrefix/EndOfBlockWithSizePrefix blocks can be nested |
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void EndOfBlockWithSizePrefix(); |
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void StartOfCompressedUnicodeRun(int aUncompressedUnicodeSizeInBytes, const unsigned char* aUncompressedUnicodeBuffer); // StartOfCompressedUnicodeRun/EndOfCompressedUnicodeRun runs *cannot* be nested |
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void EndOfCompressedUnicodeRun(); |
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void TwoByteAlignmentPoint(); |
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void EnquireStreamPositionWhenKnown(unsigned long& aStreamPosition); |
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void StreamIn(const unsigned char* aBuffer, int aNumberOfBytes); |
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void MakePlaceHolder(int aNumberOfBytes); |
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bool StreamOutReturningWhetherContainsCompressedUnicode(RCBinaryStream& aStream, int& aSizeWhenUncompressed); |
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void Dump(const char* aDumpFile) const; |
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private: |
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enum MarkType |
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{ |
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EMarkType_StartOfBlockWithSizePrefix, // uses iOtherData to store the address of the NumericValue of the size-prefix |
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EMarkType_EndOfBlockWithSizePrefix, |
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EMarkType_StartOfCompressedUnicodeRun, // uses iOtherData to store a BinaryBuffer which contains the uncompressed Unicode - a EMarkType_StartOfCompressedUnicodeRun mark is always followed in ResourceDataStream's iArrayOfMarks by a EMarkType_EndOfCompressedUnicodeRun |
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EMarkType_EndOfCompressedUnicodeRun, // uses iOtherData to store the combined size of the run taking into account any extra bytes caused by other marks, e.g. a padding byte caused by a EMarkType_TwoByteAlignmentPoint |
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EMarkType_TwoByteAlignmentPoint, // uses iOtherData to store whether a padding byte is required or not (iOtherData is set to non-zero if it is and zero if it isn't) |
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EMarkType_EnquireStreamPositionWhenKnown // uses iOtherData to store the address of the unsigned long to write the stream-position to |
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}; |
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class BinaryBuffer |
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{ |
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public: |
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static BinaryBuffer* New(int aNumberOfBytes, const unsigned char* aBuffer); |
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void Destroy(); |
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inline int NumberOfBytes() const {return iNumberOfBytes;} |
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inline const unsigned char* Buffer() const {return iBuffer;} |
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private: |
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BinaryBuffer(); // defined (as private) but not declared to prevent anyone instantiating this class apart from the static New function |
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private: |
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int iNumberOfBytes; |
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unsigned char iBuffer[1]; |
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}; |
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class Mark : public ArrayItem |
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{ |
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public: |
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inline Mark(int aBufferPosition, MarkType aMarkType, unsigned int aOtherData) :iBufferPosition(aBufferPosition), iMarkType(aMarkType), iOtherData(aOtherData) {} |
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public: |
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int iBufferPosition; |
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MarkType iMarkType; |
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unsigned int iOtherData; |
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}; |
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class ArrayOfMarks : public Array |
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{ |
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public: |
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inline ArrayOfMarks() {} |
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inline void AppendMark(int aBufferPosition, MarkType aMarkType, unsigned int aOtherData=0xbebebebe) {Add(new Mark(aBufferPosition, aMarkType, aOtherData));} |
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inline void InsertMark(int aIndex, int aBufferPosition, MarkType aMarkType, unsigned int aOtherData=0xbebebebe) {Add(aIndex, new Mark(aBufferPosition, aMarkType, aOtherData));} |
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inline void RemoveMark(int aIndex) {Discard(aIndex);} |
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inline Mark& MarkAt(int aIndex) const {return *(Mark*)(*this)[aIndex];} |
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}; |
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private: |
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void EnsureEnoughSpareBytes(int aNumberOfBytes); |
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int NumberOfBytesToNextMark(int aMarkIndex) const; |
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void ConvertCompressedRunToUncompressed(int aIndexOfStartOfCompressedUnicodeRun); // aIndexOfStartOfCompressedUnicodeRun is an index into iArrayOfMarks |
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private: |
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unsigned char* iBuffer; |
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int iNumberOfBytesAllocated; |
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int iNumberOfBytesUsed; |
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ArrayOfMarks iArrayOfMarks; |
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bool iContainsCompressedUnicode; |
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}; |
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|
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#endif |