/* Copyright (c) 1989, 1990 AT&T --- All Rights Reserved. */ /* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T. */ /* The copyright notice does not imply actual or intended publication. */ /* AUTHORS: */ /* H. S. Baird - ATT-BL MH - first versions */ /* ric.h - Ricoh IS-30 scanner constants, typedefs, function declarations The scanner program `rscan' creates a file (typically >1Mbyte). It has an ascii header, terminated by \n\n -- see RIC_hdr for its data fields. The rest is binary scanner data. Each `RIC_hdr.bpl' bytes holds one scan-line's pixels, 1 bit/pixel. A `1' bit means black. The order of the bytes in a line is left-to-right across the page. The low-order bit in a byte is the left-most. Conventionally, X-coordinates start at 0, at the left of the page, and increase to the right. Y-coordinates start at 0 at the top of the page, and increase down. REQUIRES: prior #include "Coord.h" */ typedef struct { /* Scanner file header */ short res_x,res_y; /* resolution in pixels/inch (x,y may differ) */ short bpl; /* bytes per scan line */ Bbx bx; /* bounding box (pixel indices 0,1,...) */ } RIC_hdr; /* these routines are found in /usr/hsb/ricoh/riclib.c */ int RIC_get_hdr(); /* args: fd, (RIC_hdr *); returns: 1==OK, 0==EOF, -1=ERR */ int RIC_line(); /* arg: (char **); returns: 1==OK, 0==EOF, -1==ERR */ RIC_skip(); /* arg: int no. lines to skip */ char *S_hdr_toa(); /* RIC_hdr in printable-string form */