bfont.h 3.68 KB
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/* Copyright (C) 2001-2019 Artifex Software, Inc.
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   All Rights Reserved.
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   This software is provided AS-IS with no warranty, either express or
   implied.

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   This software is distributed under license and may not be copied,
   modified or distributed except as expressly authorized under the terms
   of the license contained in the file LICENSE in this distribution.

   Refer to licensing information at http://www.artifex.com or contact
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   Artifex Software, Inc.,  1305 Grant Avenue - Suite 200, Novato,
   CA 94945, U.S.A., +1(415)492-9861, for further information.
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*/

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/* Interpreter internal routines and data needed for building fonts */
/* Requires gxfont.h */

#ifndef bfont_INCLUDED
#  define bfont_INCLUDED

#include "ifont.h"
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#include "imemory.h"
#include "iostack.h"
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/* In zfont.c */
int add_FID(i_ctx_t *i_ctx_p, ref *pfdict, gs_font *pfont,
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            gs_ref_memory_t *imem);
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font_proc_make_font(zdefault_make_font);
font_proc_make_font(zbase_make_font);
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/* The global font directory */
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#define ifont_dir (gs_lib_ctx_get_interp_instance(imemory)->font_dir)
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/* Structure for passing BuildChar and BuildGlyph procedures. */
typedef struct build_proc_refs_s {
    ref BuildChar;
    ref BuildGlyph;
} build_proc_refs;

/* Options for collecting parameters from a font dictionary. */
/* The comment indicates where the option is tested. */
typedef enum {
    bf_options_none = 0,
    bf_Encoding_optional = 1,	/* build_gs_font */
    bf_UniqueID_ignored = 4,	/* build_gs_simple_font */
    bf_CharStrings_optional = 8,	/* build_gs_primitive_font */
    bf_notdef_required = 16,	/* build_gs_primitive_font */
    bf_has_font_file = 32   /* build_gs_TrueType_font ( only for gs_type42_font_init) */
} build_font_options_t;

/* In zbfont.c */
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int build_proc_name_refs(const gs_memory_t *mem,
                         build_proc_refs * pbuild,
                         const char *bcstr, const char *bgstr);
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int build_gs_font_procs(os_ptr, build_proc_refs *);
#define BUILD_BASE_FONT_PROC(proc)\
  int proc(i_ctx_t *, os_ptr, gs_font_base **, font_type,\
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           gs_memory_type_ptr_t, const build_proc_refs *,\
           build_font_options_t)
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typedef BUILD_BASE_FONT_PROC((*build_base_font_proc_t));
BUILD_BASE_FONT_PROC(build_gs_primitive_font);
int build_gs_FDArray_font(i_ctx_t *, /*const*/ ref *, gs_font_base **,
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                          font_type, gs_memory_type_ptr_t,
                          const build_proc_refs *);
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int build_gs_outline_font(i_ctx_t *, os_ptr, gs_font_base **, font_type,
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                          gs_memory_type_ptr_t, const build_proc_refs *,
                          build_font_options_t, build_base_font_proc_t);
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BUILD_BASE_FONT_PROC(build_gs_simple_font);
void init_gs_simple_font(gs_font_base *pfont, const double bbox[4],
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                         const gs_uid *puid);
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void lookup_gs_simple_font_encoding(gs_font_base *);
int build_gs_font(i_ctx_t *, os_ptr, gs_font **, font_type,
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                  gs_memory_type_ptr_t, const build_proc_refs *,
                  build_font_options_t);
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int build_gs_sub_font(i_ctx_t *, const ref *, gs_font **,
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                      font_type, gs_memory_type_ptr_t,
                      const build_proc_refs *, const ref *, ref *);
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int define_gs_font(i_ctx_t *, gs_font *);
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void get_font_name(const gs_memory_t *mem, ref *pfname, const ref *op);
void copy_font_name(gs_font_name * pfstr, const ref * pfname);
gs_glyph zfont_encode_char(gs_font *pfont, gs_char chr, gs_glyph_space_t ignored);
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int gs_font_map_glyph_to_unicode(gs_font *font, gs_glyph glyph, int ch, unsigned short *unicode_return, unsigned int length);
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const ref *zfont_get_to_unicode_map(gs_font_dir *dir);
void get_GlyphNames2Unicode(i_ctx_t *i_ctx_p, gs_font *pfont, ref *pdref);

#endif /* bfont_INCLUDED */