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- /* Copyright (C) 1996 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.
- */
-
- /* zfont42.c */
- /* Type 42 font creation operator */
- #include "ghost.h"
- #include "errors.h"
- #include "oper.h"
- #include "gsccode.h"
- #include "gsmatrix.h"
- #include "gxfont.h"
- #include "gxfont42.h"
- #include "bfont.h"
- #include "idict.h"
- #include "idparam.h"
- #include "store.h"
-
- /* Forward references */
- private int z42_string_proc(P4(gs_font_type42 *, ulong, uint, const byte **));
-
- /* <string|name> <font_dict> .buildfont11/42 <string|name> <font> */
- /* Build a type 11 (TrueType CID-keyed) or 42 (TrueType) font. */
- int
- build_gs_TrueType_font(os_ptr op, font_type ftype, const char _ds *bcstr,
- const char _ds *bgstr, build_font_options_t options)
- { build_proc_refs build;
- ref *psfnts;
- ref sfnts0;
- #define sfd (sfnts0.value.const_bytes)
- gs_font_type42 *pfont;
- font_data *pdata;
- int code;
-
- code = build_proc_name_refs(&build, bcstr, bgstr);
- if ( code < 0 )
- return code;
- check_type(*op, t_dictionary);
- if ( dict_find_string(op, "sfnts", &psfnts) <= 0 )
- return_error(e_invalidfont);
- if ( (code = array_get(psfnts, 0L, &sfnts0)) < 0 )
- return code;
- if ( !r_has_type(&sfnts0, t_string) )
- return_error(e_typecheck);
- code = build_gs_primitive_font(op, (gs_font_base **)&pfont, ftype,
- &st_gs_font_type42, &build, options);
- if ( code != 0 )
- return code;
- pdata = pfont_data(pfont);
- ref_assign(&pdata->u.type42.sfnts, psfnts);
- pfont->data.string_proc = z42_string_proc;
- pfont->data.proc_data = (char *)pdata;
- code = gs_type42_font_init(pfont);
- if ( code < 0 )
- return code;
- return define_gs_font((gs_font *)pfont);
- }
- private int
- zbuildfont42(os_ptr op)
- { return build_gs_TrueType_font(op, ft_TrueType, "%Type42BuildChar",
- "%Type42BuildGlyph", bf_options_none);
- }
-
- /* ------ Initialization procedure ------ */
-
- BEGIN_OP_DEFS(zfont42_op_defs) {
- {"2.buildfont42", zbuildfont42},
- END_OP_DEFS(0) }
-
- /* Procedure for accessing the sfnts array. */
- private int
- z42_string_proc(gs_font_type42 *pfont, ulong offset, uint length,
- const byte **pdata)
- { const font_data *pfdata = pfont_data(pfont);
- ulong left = offset;
- uint index = 0;
-
- for ( ; ; ++index )
- { ref rstr;
- int code = array_get(&pfdata->u.type42.sfnts, index, &rstr);
- if ( code < 0 )
- return code;
- if ( !r_has_type(&rstr, t_string) )
- return_error(e_typecheck);
- if ( left < r_size(&rstr) )
- { if ( left + length > r_size(&rstr) )
- return_error(e_rangecheck);
- *pdata = rstr.value.const_bytes + left;
- return 0;
- }
- left -= r_size(&rstr);
- }
- }
-