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_CharMap current_cmap = face->charmap;
29 // FT_Select_Charmap(face, FT_ENCODING_UNICODE);
30 FT_Select_Charmap(face, FT_ENCODING_NONE);
33 for (charcode = FT_Get_First_Char (face, &gindex); gindex != 0;
34 charcode = FT_Get_Next_Char (face, charcode, &gindex))
39 FT_Set_Charmap (face, current_cmap);
46 Based on ttfps by Juliusz Chroboczek
49 print_header (void *out, FT_Face face)
51 lily_cookie_fprintf (out, "%%!PS-TrueTypeFont\n");
54 = (TT_Postscript *) FT_Get_Sfnt_Table (face, ft_sfnt_post);
57 lily_cookie_fprintf (out, "%%%%VMUsage: %ld %ld\n", 0, 0);
59 lily_cookie_fprintf (out, "%d dict begin\n", 11);
60 lily_cookie_fprintf (out, "/FontName /%s def\n",
61 FT_Get_Postscript_Name (face));
63 lily_cookie_fprintf (out, "/Encoding StandardEncoding def\n");
64 lily_cookie_fprintf (out, "/PaintType 0 def\n");
65 lily_cookie_fprintf (out, "/FontMatrix [1 0 0 1 0 0] def\n");
68 = (TT_Header *)FT_Get_Sfnt_Table (face, ft_sfnt_head);
70 lily_cookie_fprintf (out, "/FontBBox [%ld %ld %ld %ld] def\n",
71 ht->xMin *1000L / ht->Units_Per_EM,
72 ht->yMin *1000L / ht->Units_Per_EM,
73 ht->xMax *1000L / ht->Units_Per_EM,
74 ht->yMax *1000L / ht->Units_Per_EM);
76 lily_cookie_fprintf (out, "/FontType 42 def\n");
77 lily_cookie_fprintf (out, "/FontInfo 8 dict dup begin\n");
78 lily_cookie_fprintf (out, "/version (%d.%d) def\n",
79 (ht->Font_Revision >> 16),
80 (ht->Font_Revision &((1 << 16) -1)));
85 lily_cookie_fprintf (out, "/Notice (");
86 fputpss (strings[0], out);
87 lily_cookie_fprintf (out, ") def\n");
91 lily_cookie_fprintf (out, "/FullName (");
92 fputpss (strings[4], out);
93 lily_cookie_fprintf (out, ") def\n");
97 lily_cookie_fprintf (out, "/FamilyName (");
98 fputpss (strings[1], out);
99 lily_cookie_fprintf (out, ") def\n");
103 lily_cookie_fprintf (out, "/isFixedPitch %s def\n",
104 pt->isFixedPitch ? "true" : "false");
105 lily_cookie_fprintf (out, "/UnderlinePosition %ld def\n",
106 pt->underlinePosition *1000L / ht->Units_Per_EM);
107 lily_cookie_fprintf (out, "/UnderlineThickness %ld def\n",
108 pt->underlineThickness *1000L / ht->Units_Per_EM);
109 lily_cookie_fprintf (out, "end readonly def\n");
112 #define CHUNKSIZE 65534
115 print_body (void *out, string name)
117 FILE *fd = fopen (name.c_str (), "rb");
119 static char xdigits[] = "0123456789ABCDEF";
121 unsigned char *buffer;
124 buffer = new unsigned char[CHUNKSIZE];
125 lily_cookie_fprintf (out, "/sfnts [");
128 i = fread (buffer, 1, CHUNKSIZE, fd);
131 lily_cookie_fprintf (out, "\n<");
132 for (j = 0; j < i; j++)
134 if (j != 0 && j % 36 == 0)
135 lily_cookie_putc ('\n', out);
136 /* lily_cookie_fprintf (out,"%02X",(int)buffer[j]) is too slow */
137 lily_cookie_putc (xdigits[ (buffer[j] & 0xF0) >> 4], out);
138 lily_cookie_putc (xdigits[buffer[j] & 0x0F], out);
140 lily_cookie_fprintf (out, "00>"); /* Adobe bug? */
144 lily_cookie_fprintf (out, "\n] def\n");
150 print_trailer (void *out,
153 const int GLYPH_NAME_LEN = 256;
154 char glyph_name[GLYPH_NAME_LEN];
157 = (TT_MaxProfile *)FT_Get_Sfnt_Table (face, ft_sfnt_maxp);
159 lily_cookie_fprintf (out, "/CharStrings %d dict dup begin\n", mp->numGlyphs);
161 Index_to_charcode_map ic_map (make_index_to_charcode_map (face));
163 int output_count = 0;
164 for (int i = 0; i < mp->numGlyphs; i++)
167 if (face->face_flags & FT_FACE_FLAG_GLYPH_NAMES)
169 FT_Error error = FT_Get_Glyph_Name (face, i, glyph_name,
173 programming_error ("print_trailer(): FT_Get_Glyph_Name() returned error");
178 if (!glyph_name[0] && ic_map.find (i) != ic_map.end ())
180 FT_ULong ucode = ic_map[i];
181 get_unicode_name (glyph_name, ucode);
186 get_glyph_index_name (glyph_name, i);
191 lily_cookie_fprintf (out, "/%s %d def ", glyph_name, i);
196 programming_error (to_string ("no name for glyph %d", i));
199 if (! (output_count % 5))
200 lily_cookie_fprintf (out, "\n");
203 lily_cookie_fprintf (out, "end readonly def\n");
204 lily_cookie_fprintf (out, "FontName currentdict end definefont pop\n");
208 create_type42_font (void *out, string name)
210 FT_Face face = open_ft_face (name);
212 print_header (out, face);
213 print_body (out, name);
214 print_trailer (out, face);
220 LY_DEFINE (ly_ttf_ps_name, "ly:ttf-ps-name",
221 1, 0, 0, (SCM ttf_file_name),
222 "Extract the PostScript name from a TrueType font.")
224 SCM_ASSERT_TYPE (scm_is_string (ttf_file_name), ttf_file_name,
225 SCM_ARG1, __FUNCTION__, "string");
226 string file_name = ly_scm2string (ttf_file_name);
227 if (be_verbose_global)
228 progress_indication ("[" + file_name);
230 FT_Face face = open_ft_face (file_name);
231 char const *ps_name_str0 = FT_Get_Postscript_Name (face);
232 SCM ps_name = scm_makfrom0str (ps_name_str0 ? ps_name_str0 : "");
236 if (be_verbose_global)
237 progress_indication ("]");
244 LY_DEFINE (ly_ttf_to_pfa, "ly:ttf->pfa",
245 1, 0, 0, (SCM ttf_file_name),
246 "Convert the contents of a TTF file to Type42 PFA, returning it as "
249 SCM_ASSERT_TYPE (scm_is_string (ttf_file_name), ttf_file_name,
250 SCM_ARG1, __FUNCTION__, "string");
252 string file_name = ly_scm2string (ttf_file_name);
253 if (be_verbose_global)
254 progress_indication ("[" + file_name);
256 Memory_out_stream stream;
258 create_type42_font (&stream, file_name);
259 SCM asscm = scm_from_locale_stringn (stream.get_string (),
260 stream.get_length ());
262 if (be_verbose_global)
263 progress_indication ("]");