/* rgb_io.h */

/* 
  RGB header structure 
*/

typedef struct {
  short int  magic;
  short int  type;
  short int  dim;
  short int  xsize;
  short int  ysize;
  short int  zsize;
  long int   min;
  long int   max;
  long int   waste;
  char       name[80];
  long int   space[102];
} RGB_HEADER;

/*
  Routines:
*/
void       read_rgb_data ( FILE *fp, int byte_swap, long int xs, long int ys, 
             long int pl, long int type, unsigned char *r, unsigned char *g, 
             unsigned char *b );

void       read_rgb_rle_data ( FILE *fp, int byte_swap, long int xs, 
             long int ys, long int pl, long int type, unsigned char *r, 
             unsigned char *g, unsigned char *b );

int        read_rgb_header ( FILE *fp, int byte_swap, long int *xs, 
             long int *ys, long int *pl, long int *type );

void       write_rgb_data ( FILE *fp, int byte_swap, long int xs, long int ys, 
             long int pl, unsigned char *r, unsigned char *g, unsigned char *b,
             long int type );

void       write_rgb_rle_data ( FILE *fp, int byte_swap, long int xs, 
             long int ys, long int pl, unsigned char *r, unsigned char *g,
             unsigned char *b, long int type );

void       write_rgb_header ( FILE *fp, int byte_swap, long int xs, 
             long int ys, long int pl, long int type );

short int  short_int_reverse_bytes ( short int y );

void       long_int_read ( FILE *fp, long int *pr, int ys, int byte_swap );

long int   long_int_reverse_bytes ( long int y );