#ifndef GIF_LIB_PRIVATE_H#define GIF_LIB_PRIVATE_H#include "gif_lib.h"#define PROGRAM_NAME	"GIFLIB"#define LZ_MAX_CODE	4095		/* Biggest code possible in 12 bits. */#define LZ_BITS		12#define FLUSH_OUTPUT		4096    /* Impossible code, to signal flush. */#define FIRST_CODE		4097    /* Impossible code, to signal first. */#define NO_SUCH_CODE		4098    /* Impossible code, to signal empty. */#define FILE_STATE_WRITE    0x01#define FILE_STATE_SCREEN   0x02#define FILE_STATE_IMAGE    0x04#define FILE_STATE_READ     0x08#define IS_READABLE(Private)    (Private->FileState & FILE_STATE_READ)#define IS_WRITEABLE(Private)   (Private->FileState & FILE_STATE_WRITE)typedef struct GifFilePrivateType {    int FileState,	FileHandle,			     /* Where all this data goes to! */	BitsPerPixel,	    /* Bits per pixel (Codes uses at least this + 1). */	ClearCode,				       /* The CLEAR LZ code. */	EOFCode,				         /* The EOF LZ code. */	RunningCode,		    /* The next code algorithm can generate. */	RunningBits,/* The number of bits required to represent RunningCode. */	MaxCode1,  /* 1 bigger than max. possible code, in RunningBits bits. */	LastCode,		        /* The code before the current code. */	CrntCode,				  /* Current algorithm code. */	StackPtr,		         /* For character stack (see below). */	CrntShiftState;		        /* Number of bits in CrntShiftDWord. */    unsigned long CrntShiftDWord;     /* For bytes decomposition into codes. */    unsigned long PixelCount;		       /* Number of pixels in image. */    FILE *File;						  /* File as stream. */    InputFunc Read;                 /* function to read gif input (TVT) */    OutputFunc Write;               /* function to write gif output (MRB) */    GifByteType Buf[256];	       /* Compressed input is buffered here. */    GifByteType Stack[LZ_MAX_CODE];	 /* Decoded pixels are stacked here. */    GifByteType Suffix[LZ_MAX_CODE+1];	       /* So we can trace the codes. */    unsigned int Prefix[LZ_MAX_CODE+1];} GifFilePrivateType;extern int _GifError;#endif /* GIF_LIB_PRIVATE_H */