8 extern int encode; /* encode the resulting file */
9 extern int pfbflag; /* produce compressed file */
10 extern int wantafm; /* want to see .afm instead of .t1a on stdout */
11 extern int correctvsize; /* try to correct the vertical size of characters */
12 extern int wantuid; /* user wants UniqueID entry in the font */
13 extern int allglyphs; /* convert all glyphs, not only 256 of them */
14 extern int warnlevel; /* the level of permitted warnings */
15 extern int forcemap; /* do mapping even on non-Unicode fonts */
16 /* options - maximal limits */
17 extern int max_stemdepth; /* maximal depth of stem stack in interpreter */
18 /* options - debugging */
19 extern int absolute; /* print out in absolute values */
20 extern int reverse; /* reverse font to Type1 path directions */
21 /* options - suboptions of Outline Processing */
22 extern int optimize; /* enables space optimization */
23 extern int smooth; /* enable smoothing of outlines */
24 extern int transform; /* enables transformation to 1000x1000 matrix */
25 extern int hints; /* enables autogeneration of hints */
26 extern int subhints; /* enables autogeneration of substituted hints */
27 extern int trybold; /* try to guess whether the font is bold */
28 extern int correctwidth; /* try to correct the character width */
29 extern int vectorize; /* vectorize the bitmaps */
30 extern int use_autotrace; /* use the autotrace library on bitmap */
31 /* options - suboptions of File Generation */
32 extern int gen_pfa; /* generate the font file */
33 extern int gen_afm; /* generate the metrics file */
34 extern int gen_dvienc; /* generate the dvips encoding file */
36 /* not quite options to select a particular source encoding */
37 extern int force_pid; /* specific platform id */
38 extern int force_eid; /* specific encoding id */
41 extern FILE *null_file, *pfa_file, *afm_file, *dvienc_file;
46 #define WARNING_1 if(warnlevel >= 1)
47 #define WARNING_2 if(warnlevel >= 2)
48 #define WARNING_3 if(warnlevel >= 3)
49 #define WARNING_4 if(warnlevel >= 4)
52 * Bitmap control macros
55 #define BITMAP_BYTES(size) (((size)+7)>>3)
56 #define DEF_BITMAP(name, size) unsigned char name[BITMAP_BYTES(size)]
57 #define SET_BITMAP(name, bit) ( name[(bit)>>3] |= (1<<((bit)&7)) )
58 #define CLR_BITMAP(name, bit) ( name[(bit)>>3] &= ~(1<<((bit)&7)) )
59 #define IS_BITMAP(name, bit) ( name[(bit)>>3] & (1<<((bit)&7)) )
64 #define DEBUG_UNICODE 0x00000001 /* unicode to 8-bit code conversion */
65 #define DEBUG_MAINSTEMS 0x00000002 /* glyph-wide main stem generation */
66 #define DEBUG_SUBSTEMS 0x00000004 /* substituted stem generation */
67 #define DEBUG_STEMS (DEBUG_MAINSTEMS|DEBUG_SUBSTEMS)
68 #define DEBUG_REVERSAL 0x00000008 /* reversal of the paths */
69 #define DEBUG_FIXCVDIR 0x00000010 /* fixcvdir() */
70 #define DEBUG_STEMOVERLAP 0x00000020 /* stemoverlap() */
71 #define DEBUG_BLUESTEMS 0x00000040 /* markbluestems() */
72 #define DEBUG_STRAIGHTEN 0x00000080 /* markbluestems() */
73 #define DEBUG_EXTMAP 0x00000100 /* parsing of external map */
74 #define DEBUG_TOINT 0x00000200 /* conversion of path to integer */
75 #define DEBUG_BUILDG 0x00000400 /* building of glyph path */
76 #define DEBUG_QUAD 0x00000800 /* splitting curves by quadrants */
77 #define DEBUG_SQEQ 0x00001000 /* square equation solver */
78 #define DEBUG_COMPOSITE 0x00002000 /* handling of composite glyphs */
79 #define DEBUG_FCONCISE 0x00004000 /* normalization of curves */
80 #define DEBUG_FT 0x00008000 /* FreeType front-end */
81 #define DEBUG_DISABLED 0x80000000 /* special flag: temporary disable debugging */
83 /* at what we want to look now */
88 /* uncomment the next line if debugging data is wanted for one glyph only */
89 /* #define DBG_GLYPH "_517" /* */
92 # define ISDBG(name) (0)
93 # define ENABLEDBG(condition) (0)
94 # define DISABLEDBG(condition) (0)
96 extern int debug; /* collection of the flags */
97 /* this ISDBG will only work on ANSI C, not K&R */
98 # define ISDBG(name) ( (debug & DEBUG_DISABLED) ? 0 : (debug & (DEBUG_##name)) )
99 # define ENABLEDBG(condition) ( (condition) ? (debug&=~DEBUG_DISABLED) : 0 )
100 # define DISABLEDBG(condition) ( (condition) ? (debug|=DEBUG_DISABLED) : 0 )
104 # define DBG_TO_GLYPH(g) DISABLEDBG( strcmp( (g)->name, DBG_GLYPH ) )
105 # define DBG_FROM_GLYPH(g) ENABLEDBG(1)
107 # define DBG_TO_GLYPH(g) (0)
108 # define DBG_FROM_GLYPH(g) (0)
112 int iscale( int val);
113 double fscale( double val);
114 int unicode_rev_lookup( int unival);
115 void bmp_outline( GLYPH *g, int scale, char *bmap,
116 int xsz, int ysz, int xoff, int yoff);
118 int fsign( double x);
120 /* global metrics for a font */
122 struct font_metrics {
125 short underline_position;
126 short underline_thickness;
127 short is_fixed_pitch;
134 unsigned short units_per_em;
138 char *name_copyright;
149 /* size of the encoding table - glyphs beyond 255 are actually unnumbered */
151 #define ENCTABSZ 1024
153 /* switch table structure for front-ends */
158 char *name; /* name of the front end */
159 char *descr; /* description of the front end */
160 char *suffix[MAXSUFFIX]; /* possible file name suffixes */
162 void (*open)(char *fname, char *arg); /* open font file */
163 void (*close)(void); /* close font file */
164 int (*nglyphs)(void); /* get the number of glyphs */
165 int (*glnames)(GLYPH *glyphs); /* get the names of glyphs */
166 void (*glmetrics)(GLYPH *glyphs); /* get the metrics of glyphs */
167 int (*glenc)(GLYPH *glyphs, int *enc, int *unimap); /* get the encoding */
168 void (*fnmetrics)(struct font_metrics *fm); /* get the font metrics */
169 void (*glpath)(int glyphno, GLYPH *glyphs); /* get the glyph path */
170 void (*kerning)(GLYPH *glyph_list); /* extract the kerning data */