cid.h

#ifndef _HAD_CID_H
#define _HAD_CID_H

/*
  cid.h -- header file for CID font handling
  Copyright (C) 1998, 1999 Dieter Baron

  This file is part of ttftot42, to use TrueType fonts in PostScript.
  The author can be contacted at <dillo@giga.or.at>

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:
  1. Redistributions of source code must retain the above copyright
     notice, this list of conditions and the following disclaimer.
  2. Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
     distribution.
  3. The name of the author may not be used to endorse or promote
     products derived from this software without specific prior
     written permission.
 
  THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/



/* command codes */

#define C_none	1      /* no active code */
#define C_N	0x0000 /* not encoded */
#define C_O	0x2000 /* range of consecutive codes */
#define C_OV	0x4000 /* range of consecutive codes, vertical */
#define C_L	0x6000 /* list of codes */
#define C_LV	0x8000 /* list of codes, vertical */
#define C_A	0xa000 /* list of alternatives */
#define C_AV	0xc000 /* list of alternatives, vertical */
#define C_AM	0xe000 /* list of alternatives, mixed */

/* decode flags */

#define CID_VERT  0x001
#define CID_ALT   0x002
#define CID_NENC  0x004
#define CID_EOF   0x008



struct cid {
    char *registry, *ordering;
    int supplement;

    int v_major, v_minor;
    int nsupl;
    int *supl_ncid;
    int ncmap;
    struct cid_cmap *cmap;
};

struct cid_feature {
    unsigned long script, language, feature;
};

struct cid_cmap {
    int pid, eid;
    int nvert;
    struct cid_feature *vert;
    int nfeature;
    struct cid_feature *feature;

    struct cid_code *code;
};

struct cid_code {
    int size;
    int ndata;
    int nchar;
    unsigned short *data;

    int cmd, idx, len, state;
};



struct cid *cid_new(void);
void cid_free(struct cid *cid);
struct cid_code *cid_code_new(void);

struct cid *cid_read(char *fname);
struct cid *cid_aread(char *fname);
int cid_write(char *fname, struct cid *cid);
int cid_awrite(char *fname, struct cid *cid);

int cid_decode_init(struct cid_code *code);
int cid_decode(struct cid_code *code, int *value);

#endif /* cid.h */