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- /* Copyright (C) 1992, 1995 Aladdin Enterprises. All rights reserved.
-
- This file is part of Aladdin Ghostscript.
-
- Aladdin Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author
- or distributor accepts any responsibility for the consequences of using it,
- or for whether it serves any particular purpose or works at all, unless he
- or she says so in writing. Refer to the Aladdin Ghostscript Free Public
- License (the "License") for full details.
-
- Every copy of Aladdin Ghostscript must include a copy of the License,
- normally in a plain ASCII text file named PUBLIC. The License grants you
- the right to copy, modify and redistribute Aladdin Ghostscript, but only
- under certain conditions described in the License. Among other things, the
- License requires that the copyright notice and this notice be preserved on
- all copies.
- */
-
- /* ccfont.h */
- /* Header for fonts compiled into C. */
-
- #ifndef ccfont_INCLUDED
- # define ccfont_INCLUDED
-
- /* Include all the things a compiled font needs. */
- #include "std.h"
- #include "gsmemory.h"
- #include "iref.h"
- #include "ivmspace.h" /* for avm_foreign */
- #include "store.h"
-
- /* Define type-specific refs for initializing arrays. */
- #define ref_(t) struct { struct tas_s tas; t value; }
- #define boolean_v(b) { {t_boolean<<r_type_shift}, (ushort)(b) }
- #define integer_v(i) { {t_integer<<r_type_shift}, (long)(i) }
- #define null_v() { {t_null<<r_type_shift} }
- #define real_v(v) { {t_real<<r_type_shift}, (float)(v) }
-
- /* Define other initialization structures. */
- typedef struct { byte encx, charx; } charindex;
- /*
- * We represent mostly-string arrays by byte strings. Each element
- * starts with length bytes. If the first length byte is not 255,
- * it and the following byte define a big-endian length of a string or name.
- * If the first two bytes are (255,255), this element is null.
- * Otherwise, the initial 255 is followed by a 2-byte big-endian length
- * of a string that must be scanned as a token.
- */
- typedef const char *cfont_string_array;
-
- /* Support routines in iccfont.c */
- typedef struct {
- const charindex *enc_keys; /* keys from encoding vectors */
- uint num_enc_keys;
- uint num_str_keys;
- uint extra_slots; /* (need extra for fonts) */
- uint dict_attrs; /* protection for dictionary */
- uint value_attrs; /* protection for values */
- /* (only used for string dicts) */
- } cfont_dict_keys;
- /* We pass a procedure vector to the font initialization routine */
- /* to avoid having externs, which compromise sharability. */
- /* On MS-DOS, each compiled font has its own data segment, */
- /* so all of these procedures must be declared 'huge' for Borland C. */
- typedef struct cfont_procs_s {
- int huge (*ref_dict_create)(P4(ref *, const cfont_dict_keys *,
- cfont_string_array, const ref *));
- int huge (*string_dict_create)(P4(ref *, const cfont_dict_keys *,
- cfont_string_array,
- cfont_string_array));
- int huge (*num_dict_create)(P5(ref *, const cfont_dict_keys *,
- cfont_string_array, const ref *,
- const char *));
- int huge (*name_array_create)(P3(ref *, cfont_string_array, int));
- int huge (*string_array_create)(P4(ref *, cfont_string_array,
- int /*size*/,
- uint /*protection*/));
- int huge (*name_create)(P2(ref *, const char *));
- int huge (*ref_from_string)(P3(ref *, const char *, uint));
- } cfont_procs;
-
- /*
- * In order to make it possible for third parties to compile fonts (into
- * a shared library, on systems that support such things), we define
- * a tiny procedural interface for getting access to the compiled font table.
- */
- typedef huge int ccfont_fproc(P2(const cfont_procs *, ref *));
- /* There should be some consts in the *** below, but a number of */
- /* C compilers don't handle const properly in such situations. */
- extern int ccfont_fprocs(P2(int *, ccfont_fproc ***));
- #define ccfont_version 17 /* for checking against libraries */
-
- #endif /* ccfont_INCLUDED */
-