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8a7c86603f
git-svn-id: svn://fileserver/activex/AVS/Sources/TeamlabOffice/trunk/ServerComponents@63069 954022d7-b5bf-4e40-9824-e11837661b57
99 lines
2.6 KiB
C++
99 lines
2.6 KiB
C++
#ifndef _PDF_WRITER_SRC_UTILS_H
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#define _PDF_WRITER_SRC_UTILS_H
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#include "Types.h"
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#define NEEDS_ESCAPE(c) (c < 0x21 || \
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c > 0x7e || \
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c == '\\' || \
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c == '%' || \
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c == '#' || \
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c == '/' || \
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c == '(' || \
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c == ')' || \
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c == '<' || \
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c == '>' || \
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c == '[' || \
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c == ']' || \
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c == '{' || \
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c == '}' ) \
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#define IS_WHITE_SPACE(c) (c == 0x00 || \
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c == 0x09 || \
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c == 0x0A || \
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c == 0x0C || \
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c == 0x0D || \
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c == 0x20 ) \
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//-----------------------------------------------------------------------------------------------------
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// CRC 32
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//-----------------------------------------------------------------------------------------------------
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class CRC32
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{
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public:
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CRC32()
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{
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const unsigned CRC_POLY = 0xEDB88320;
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for ( unsigned int i = 0; i < 256; i++ )
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{
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unsigned int r, j;
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for ( r = i, j = 8; j; j--)
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r = r & 1? (r >> 1) ^ CRC_POLY: r >> 1;
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m_pTable[i] = r;
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}
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m_nCRC32 = 0;
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}
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void Init(unsigned int nCRC = 0)
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{
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m_nCRC32 = nCRC;
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}
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void ProcessCRC(void* pData, int nLen)
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{
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const unsigned CRC_MASK = 0xD202EF8D;
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register unsigned char *sData = reinterpret_cast<unsigned char*>(pData);
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register unsigned int nCRC = m_nCRC32;
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while ( nLen-- )
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{
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nCRC = m_pTable[static_cast<unsigned char>(nCRC) ^ *sData++] ^ nCRC >> 8;
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nCRC ^= CRC_MASK;
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}
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m_nCRC32 = nCRC;
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}
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protected:
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unsigned int m_pTable[256];
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public:
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unsigned int m_nCRC32;
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};
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namespace PdfWriter
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{
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BYTE* MemCpy(BYTE* pDst, const BYTE *pSrc, unsigned int unLen);
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void MemSet(void* pBuf, BYTE nChar, unsigned int unLen);
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BYTE* StrCpy(char* sDst, const char* sSrc, char* pEnd);
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int StrLen(const char* sString, int nMaxLen);
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char* ItoA (char* sDst, int nVal, char* pEnd);
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char* ItoA2 (char* sDst, unsigned int unVal, unsigned int unLen);
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int StrCmp(const char* s1, const char* s2);
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char* FtoA (char* sDst, double dVal, char* pEnd);
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void UIntChangeBit(unsigned int& nValue, short nBit);
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void UIntChangeBit2(unsigned int& nValue, short nBit);
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}
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#endif // _PDF_WRITER_SRC_UTILS_H
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