xref: /plan9-contrib/sys/src/cmd/gs/src/ifont1.h (revision 593dc095aefb2a85c828727bbfa9da139a49bdf4)
17dd7cddfSDavid du Colombier /* Copyright (C) 1998, 1999 Aladdin Enterprises.  All rights reserved.
27dd7cddfSDavid du Colombier 
3*593dc095SDavid du Colombier   This software is provided AS-IS with no warranty, either express or
4*593dc095SDavid du Colombier   implied.
57dd7cddfSDavid du Colombier 
6*593dc095SDavid du Colombier   This software is distributed under license and may not be copied,
7*593dc095SDavid du Colombier   modified or distributed except as expressly authorized under the terms
8*593dc095SDavid du Colombier   of the license contained in the file LICENSE in this distribution.
97dd7cddfSDavid du Colombier 
10*593dc095SDavid du Colombier   For more information about licensing, please refer to
11*593dc095SDavid du Colombier   http://www.ghostscript.com/licensing/. For information on
12*593dc095SDavid du Colombier   commercial licensing, go to http://www.artifex.com/licensing/ or
13*593dc095SDavid du Colombier   contact Artifex Software, Inc., 101 Lucas Valley Road #110,
14*593dc095SDavid du Colombier   San Rafael, CA  94903, U.S.A., +1(415)492-9861.
157dd7cddfSDavid du Colombier */
167dd7cddfSDavid du Colombier 
17*593dc095SDavid du Colombier /* $Id: ifont1.h,v 1.7 2004/08/04 19:36:12 stefan Exp $ */
187dd7cddfSDavid du Colombier /* Type 1 font utilities shared with Type 2 */
197dd7cddfSDavid du Colombier 
207dd7cddfSDavid du Colombier #ifndef ifont1_INCLUDED
217dd7cddfSDavid du Colombier #  define ifont1_INCLUDED
227dd7cddfSDavid du Colombier 
237dd7cddfSDavid du Colombier /*
247dd7cddfSDavid du Colombier  * Define the temporary structure for holding pointers to substructures of a
257dd7cddfSDavid du Colombier  * CharString-based font.  This is used for parsing Type 1, 2, and 4 fonts.
267dd7cddfSDavid du Colombier  */
277dd7cddfSDavid du Colombier typedef struct charstring_font_refs_s {
287dd7cddfSDavid du Colombier     ref *Private;
297dd7cddfSDavid du Colombier     ref no_subrs;
307dd7cddfSDavid du Colombier     ref *OtherSubrs;
317dd7cddfSDavid du Colombier     ref *Subrs;
327dd7cddfSDavid du Colombier     ref *GlobalSubrs;
337dd7cddfSDavid du Colombier } charstring_font_refs_t;
347dd7cddfSDavid du Colombier 
353ff48bf5SDavid du Colombier /* Define the default lenIV value for a Type 1 font. */
363ff48bf5SDavid du Colombier #define DEFAULT_LENIV_1 4
373ff48bf5SDavid du Colombier 
387dd7cddfSDavid du Colombier /*
397dd7cddfSDavid du Colombier  * Parse the substructures of a CharString-based font.
407dd7cddfSDavid du Colombier  */
41*593dc095SDavid du Colombier int charstring_font_get_refs(const_os_ptr op, charstring_font_refs_t *pfr);
427dd7cddfSDavid du Colombier 
437dd7cddfSDavid du Colombier /*
443ff48bf5SDavid du Colombier  * Get the parameters of a CharString-based font or a FDArray entry for a
453ff48bf5SDavid du Colombier  * CIDFontType 0 font.  The client has filled in pdata1->interpret,
463ff48bf5SDavid du Colombier  * subroutineNumberBias, lenIV, and (if applicable) the Type 2 elements.
473ff48bf5SDavid du Colombier  */
48*593dc095SDavid du Colombier int charstring_font_params(const gs_memory_t *mem,
49*593dc095SDavid du Colombier 			   const_os_ptr op, charstring_font_refs_t *pfr,
50*593dc095SDavid du Colombier 			   gs_type1_data *pdata1);
513ff48bf5SDavid du Colombier 
523ff48bf5SDavid du Colombier /*
533ff48bf5SDavid du Colombier  * Fill in a newly built CharString-based font or FDArray entry.
543ff48bf5SDavid du Colombier  */
55*593dc095SDavid du Colombier int charstring_font_init(gs_font_type1 *pfont,
563ff48bf5SDavid du Colombier 			 const charstring_font_refs_t *pfr,
57*593dc095SDavid du Colombier 			 const gs_type1_data *pdata1);
583ff48bf5SDavid du Colombier 
593ff48bf5SDavid du Colombier /*
603ff48bf5SDavid du Colombier  * Finish building a CharString-based font.  The client has filled in the
613ff48bf5SDavid du Colombier  * same elements as for charstring_font_params.
627dd7cddfSDavid du Colombier  */
63*593dc095SDavid du Colombier int build_charstring_font(i_ctx_t *i_ctx_p, os_ptr op,
647dd7cddfSDavid du Colombier 			  build_proc_refs * pbuild, font_type ftype,
657dd7cddfSDavid du Colombier 			  charstring_font_refs_t *pfr,
667dd7cddfSDavid du Colombier 			  gs_type1_data *pdata1,
67*593dc095SDavid du Colombier 			  build_font_options_t options);
687dd7cddfSDavid du Colombier 
697dd7cddfSDavid du Colombier #endif /* ifont1_INCLUDED */
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