#ifndef __FILEBMP_INCLUDED__
#define __FILEBMP_INCLUDED__

#ifdef __cplusplus
extern "C" {
#endif
/*
#if defined(WIN32)
typedef struct {unsigned char b,g,r,m;}  LPIXEL;
#elif defined(__sgi)
typedef struct { unsigned char  m,b,g,r; } LPIXEL;
#elif defined (LINUX)
typedef struct { unsigned char  r,g,b,m; } LPIXEL;
#else
#error	Not yet implemented
#endif
*/
enum BMP_ERROR_CODE {
	OK,
	UNSUPPORTED_BMP_FORMAT = -1,
	OUT_OF_MEMORY = -2,
	UNEXPECTED_EOF = -3,
	CANT_OPEN_FILE = -4,
	WRITE_ERROR = -5
};

typedef const wchar_t *MYSTRING;

int writebmp(const MYSTRING filename, int xsize, int ysize, void *buffer, int bpp);
int readbmp(const MYSTRING filename, int *xsize, int *ysize, void **buffer);
int readbmpregion(const MYSTRING fname, void **pimg, int x1, int y1, int x2, int y2, int scale);

int readbmp_size(const MYSTRING fname, int *lx, int *ly);
int readbmp_bbox(const MYSTRING fname, int *x0, int *y0, int *x1, int *y1);

typedef enum {
	BMP_NONE,
	BMP_BW,
	BMP_GREY16,
	BMP_GREY16C,
	BMP_GREY256,
	BMP_GREY256C,
	BMP_CMAPPED16,
	BMP_CMAPPED16C,
	BMP_CMAPPED256,
	BMP_CMAPPED256C,
	BMP_RGB

} BMP_SUBTYPE;

typedef struct
	{
	UINT bfSize;
	UINT bfOffBits;
	UINT biSize;
	UINT biWidth;
	UINT biHeight;
	UINT biPlanes;
	UINT biBitCount;
	UINT biCompression;
	UINT biSizeImage;
	UINT biXPelsPerMeter;
	UINT biYPelsPerMeter;
	UINT biClrUsed;
	UINT biClrImportant;
	UINT biFilesize;
	UINT biPad;

} BMP_HEADER;

int load_bmp_header(FILE *fp, BMP_HEADER **pHd);
int write_bmp_header(FILE *fp, BMP_HEADER *hd);
void release_bmp_header(BMP_HEADER *hd);

int write_bmp_palette(FILE *fp, int nc, UCHAR *b, UCHAR *g, UCHAR *r);
int make_bmp_palette(int colors, int grey, UCHAR *r, UCHAR *g, UCHAR *b);

/*BMP_SUBTYPE 
     bmp_get_colorstyle(IMAGE *img);*/

int error_checking_bmp(BMP_HEADER *hd);
int read_bmp_line(FILE *fp, void *line,
				  UINT w, UINT h, UCHAR **mp, BMP_SUBTYPE type);
int write_bmp_line(FILE *fp, void *line_buffer,
				   UINT w, UINT row, UCHAR *mp, BMP_SUBTYPE type);
int skip_bmp_lines(FILE *fp, UINT w, UINT rows, int whence, BMP_SUBTYPE type);

#define BMP_WIN_OS2_OLD 12

#ifdef __cplusplus
}
#endif

#endif