2 ttf.cc -- implement ttf -> pfa routine.
4 source file of the GNU LilyPond music typesetter
6 (c) 2005--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
11 #include <freetype/tttables.h>
13 #include "lily-proto.hh"
14 #include "memory-stream.hh"
16 #include "lily-guile.hh"
18 #include "open-type-font.hh"
22 make_index_to_charcode_map (FT_Face face)
24 Index_to_charcode_map m;
28 FT_Select_Charmap(face, FT_ENCODING_UNICODE);
29 for (charcode = FT_Get_First_Char (face, &gindex); gindex != 0;
30 charcode = FT_Get_Next_Char (face, charcode, &gindex))
36 Based on ttfps by Juliusz Chroboczek
39 print_header (void *out, FT_Face face)
41 lily_cookie_fprintf (out, "%%!PS-TrueTypeFont\n");
44 = (TT_Postscript *) FT_Get_Sfnt_Table (face, ft_sfnt_post);
47 lily_cookie_fprintf (out, "%%%%VMUsage: %ld %ld\n", 0, 0);
49 lily_cookie_fprintf (out, "%d dict begin\n", 11);
50 lily_cookie_fprintf (out, "/FontName /%s def\n",
51 FT_Get_Postscript_Name (face));
53 lily_cookie_fprintf (out, "/Encoding StandardEncoding def\n");
54 lily_cookie_fprintf (out, "/PaintType 0 def\n");
55 lily_cookie_fprintf (out, "/FontMatrix [1 0 0 1 0 0] def\n");
58 = (TT_Header *)FT_Get_Sfnt_Table (face, ft_sfnt_head);
60 lily_cookie_fprintf (out, "/FontBBox [%ld %ld %ld %ld] def\n",
61 ht->xMin *1000L / ht->Units_Per_EM,
62 ht->yMin *1000L / ht->Units_Per_EM,
63 ht->xMax *1000L / ht->Units_Per_EM,
64 ht->yMax *1000L / ht->Units_Per_EM);
66 lily_cookie_fprintf (out, "/FontType 42 def\n");
67 lily_cookie_fprintf (out, "/FontInfo 8 dict dup begin\n");
68 lily_cookie_fprintf (out, "/version (%d.%d) def\n",
69 (ht->Font_Revision >> 16),
70 (ht->Font_Revision &((1 << 16) -1)));
75 lily_cookie_fprintf (out, "/Notice (");
76 fputpss (strings[0], out);
77 lily_cookie_fprintf (out, ") def\n");
81 lily_cookie_fprintf (out, "/FullName (");
82 fputpss (strings[4], out);
83 lily_cookie_fprintf (out, ") def\n");
87 lily_cookie_fprintf (out, "/FamilyName (");
88 fputpss (strings[1], out);
89 lily_cookie_fprintf (out, ") def\n");
93 lily_cookie_fprintf (out, "/isFixedPitch %s def\n",
94 pt->isFixedPitch ? "true" : "false");
95 lily_cookie_fprintf (out, "/UnderlinePosition %ld def\n",
96 pt->underlinePosition *1000L / ht->Units_Per_EM);
97 lily_cookie_fprintf (out, "/UnderlineThickness %ld def\n",
98 pt->underlineThickness *1000L / ht->Units_Per_EM);
99 lily_cookie_fprintf (out, "end readonly def\n");
102 #define CHUNKSIZE 65534
105 print_body (void *out, string name)
107 FILE *fd = fopen (name.c_str (), "rb");
109 static char xdigits[] = "0123456789ABCDEF";
111 unsigned char *buffer;
114 buffer = new unsigned char[CHUNKSIZE];
115 lily_cookie_fprintf (out, "/sfnts [");
118 i = fread (buffer, 1, CHUNKSIZE, fd);
121 lily_cookie_fprintf (out, "\n<");
122 for (j = 0; j < i; j++)
124 if (j != 0 && j % 36 == 0)
125 lily_cookie_putc ('\n', out);
126 /* lily_cookie_fprintf (out,"%02X",(int)buffer[j]) is too slow */
127 lily_cookie_putc (xdigits[ (buffer[j] & 0xF0) >> 4], out);
128 lily_cookie_putc (xdigits[buffer[j] & 0x0F], out);
130 lily_cookie_fprintf (out, "00>"); /* Adobe bug? */
134 lily_cookie_fprintf (out, "\n] def\n");
140 print_trailer (void *out,
143 const int GLYPH_NAME_LEN = 256;
144 char glyph_name[GLYPH_NAME_LEN];
147 = (TT_MaxProfile *)FT_Get_Sfnt_Table (face, ft_sfnt_maxp);
149 lily_cookie_fprintf (out, "/CharStrings %d dict dup begin\n", mp->numGlyphs);
151 Index_to_charcode_map ic_map (make_index_to_charcode_map (face));
153 for (int i = 0; i < mp->numGlyphs; i++)
156 if (face->face_flags & FT_FACE_FLAG_GLYPH_NAMES)
158 FT_Error error = FT_Get_Glyph_Name (face, i, glyph_name,
161 programming_error ("print_trailer(): FT_Get_Glyph_Name() returned error");
168 sprintf (glyph_name, "uni%04lX", ic_map[i]);
171 lily_cookie_fprintf (out, "/%s %d def ", glyph_name, i);
174 lily_cookie_fprintf (out, "\n");
177 lily_cookie_fprintf (out, "end readonly def\n");
178 lily_cookie_fprintf (out, "FontName currentdict end definefont pop\n");
182 create_type42_font (void *out, string name)
184 FT_Face face = open_ft_face (name);
186 print_header (out, face);
187 print_body (out, name);
188 print_trailer (out, face);
194 LY_DEFINE (ly_ttf_ps_name, "ly:ttf-ps-name",
195 1, 0, 0, (SCM ttf_file_name),
196 "Extract the PostScript name from a TrueType font.")
198 SCM_ASSERT_TYPE (scm_is_string (ttf_file_name), ttf_file_name,
199 SCM_ARG1, __FUNCTION__, "string");
200 string file_name = ly_scm2string (ttf_file_name);
201 if (be_verbose_global)
202 progress_indication ("[" + file_name);
204 FT_Face face = open_ft_face (file_name);
205 char const *ps_name_str0 = FT_Get_Postscript_Name (face);
206 SCM ps_name = scm_makfrom0str (ps_name_str0 ? ps_name_str0 : "");
210 if (be_verbose_global)
211 progress_indication ("]");
218 LY_DEFINE (ly_ttf_to_pfa, "ly:ttf->pfa",
219 1, 0, 0, (SCM ttf_file_name),
220 "Convert the contents of a TTF file to Type42 PFA, returning it as "
223 SCM_ASSERT_TYPE (scm_is_string (ttf_file_name), ttf_file_name,
224 SCM_ARG1, __FUNCTION__, "string");
226 string file_name = ly_scm2string (ttf_file_name);
227 if (be_verbose_global)
228 progress_indication ("[" + file_name);
230 Memory_out_stream stream;
232 create_type42_font (&stream, file_name);
233 SCM asscm = scm_from_locale_stringn (stream.get_string (),
234 stream.get_length ());
236 if (be_verbose_global)
237 progress_indication ("]");