SWF Summary Shell Extension (PropertyPage for SWF files!)

#pragma once

// This code was written by Daniel Cohen Gindi (danielgindi@gmail.com)
// You can use it fo whatever needs, but please keep the credits :-)

// NOTE: The code is using a 'minimal' version of ZLIB, 
//       with only the unzip functionality

// IMPORTANT NOTE: The FILE passes must be opened in BINARY MODE!!!
//				   And for a good reason: 
//				   The fseek reliability is not guaranteed in text mode... (MSDN... And tests)

#include "zlib_unzip.h"

typedef struct tagSWF_RECT
{ // TWIPS! 1 TWIP = 20 PIXELS
	int xMin;
	int xMax;
	int yMin;
	int yMax;
} SWF_RECT;

typedef struct tagSWF_HEADER
{
	BOOL bCompressed;
	BYTE bVer;
	float fFrameRate;
	SWF_RECT rcFrameSize;
	WORD wFrameCount;
} SWF_HEADER;

class CSWFReader
{
public:
	CSWFReader(FILE * file = NULL);
	virtual ~CSWFReader();

	void SetFile(FILE * file);

	BOOL ReadHeader();

	SWF_HEADER& GetHeader();

private:

	FILE * m_fFile;

	BOOL m_bHeaderRead;

	static const UINT DECOMPRESS_BUFFER_SIZE=16;
	BOOL m_bReadCompressed;
	z_stream m_zStream;
	BYTE m_zInBytes[DECOMPRESS_BUFFER_SIZE];

	SWF_HEADER m_header;

	UINT m_iBitPos;
	BYTE m_bCurByte;

	BOOL ReadByte(BYTE & bOut);
	BOOL ReadBytes(BYTE * bOut, UINT iCount);
	BOOL ReadBit(BOOL & bBit);
	BOOL ReadUI8(unsigned __int8 & value);
	BOOL ReadSI8(signed __int8 & value);
	BOOL ReadUI16(unsigned __int16 & value);
	BOOL ReadSI16(signed __int16 & value);
	BOOL ReadUI32(unsigned __int32 & value);
	BOOL ReadSI32(signed __int32 & value);
	BOOL Read8_8(float & value);
	BOOL Read16_16(float & value);
	BOOL ReadUB(unsigned __int8 & value, int iBits);
	BOOL ReadUB(unsigned __int16 & value, int iBits);
	BOOL ReadUB(unsigned __int32 & value, int iBits);
	BOOL ReadSB(signed __int8 & value, int iBits);
	BOOL ReadSB(signed __int16 & value, int iBits);
	BOOL ReadSB(signed __int32 & value, int iBits);
};