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//============================================================================
//==== Titre: AlienImage_GIFLZWDict.hxx
//============================================================================
#ifndef _AlienImage_GIFLZWDict_HeaderFile
#define _AlienImage_GIFLZWDict_HeaderFile
//==== Definition de Type ====================================================
#include <Standard_Type.hxx>
const Handle(Standard_Type)& STANDARD_TYPE(AlienImage_GIFLZWDict);
//============================================================================
#include <OSD_File.hxx>
#ifndef WNT
typedef unsigned int DWORD; // 32-bit signed
typedef int LONG; // 32-bit unsigned
typedef unsigned int ULONG, UINT; // 32-bit signed
typedef unsigned short WORD; // 16-bit unsigned
typedef unsigned char BYTE; // 8-bit unsigned
typedef unsigned int BOOL;
typedef int* PINT;
typedef unsigned char* PBYTE;
typedef void* LPVOID;
#else
#ifdef NOGDI
#undef NOGDI /* we need GDI definitions here... */
#endif
# include <windows.h>
#endif
#if defined(__alpha) || defined(DECOSF1) || defined(WNT)
# define SWAP_WORD(__w) (__w)
# define SWAP_DWORD(__w) (__w)
#else
# define SWAP_WORD(__w) ((((__w)&0xFF) << 8) | (((__w)&0xFF00) >> 8))
# define SWAP_DWORD(__w) ((((__w)&0x000000FF) << 24) | (((__w)&0x0000FF00) << 8) \
| (((__w)&0xFF0000) >> 8) | (((__w)&0xFF000000) >> 24) )
#endif
#define NBITS 12
#define TBL_SIZE 5021
#define MAX_CODE ( ( 1 << NBITS ) - 1 )
#define BUFF_SIZE 255
#define UNUSED -1
#define TRUE 1
#define FALSE 0
//=============================================================================
// Functions and structs to write GIF image to file.
//=============================================================================
extern int _lzw_encode (OSD_File&, const BYTE*, int, int, int);
typedef struct {
char gifID[ 6 ];
WORD scrnWidth;
WORD scrnHeight;
BYTE scrnFlag;
} SCREEN_DESCR;
typedef struct {
WORD imgX;
WORD imgY;
WORD imgWidth;
WORD imgHeight;
BYTE imgFlag;
} IMAGE_DESCR;
typedef struct {
int code;
int prnt;
BYTE byte;
} AlienImage_GIFLZWDict;
//=============================================================================
// Functions to convert from 24 to 8 color image
//=============================================================================
#define PAD(a) ( ( a ) % sizeof ( LONG ) ? \
sizeof ( LONG ) - ( ( a ) % sizeof ( LONG ) ) : 0 )
#define MALLOC(s) calloc ( ( s ), 1 )
#define FREE(p) free ( ( p ) )
#ifndef WNT
typedef struct {
BYTE rgbBlue;
BYTE rgbGreen;
BYTE rgbRed;
BYTE rgbReserved;
} RGBQUAD, *LPRGBQUAD;
#define __fastcall
#endif // WNT
BOOL __fastcall _convert24to8 (LPRGBQUAD, PBYTE, PBYTE, int, int);
#endif // _AlienImage_GIFLZWDict_HeaderFile
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