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/*
* see COPYRIGHT
*/
/* options */
extern int encode; /* encode the resulting file */
extern int pfbflag; /* produce compressed file */
extern int wantafm; /* want to see .afm instead of .t1a on stdout */
extern int correctvsize; /* try to correct the vertical size of characters */
extern int wantuid; /* user wants UniqueID entry in the font */
extern int allglyphs; /* convert all glyphs, not only 256 of them */
extern int warnlevel; /* the level of permitted warnings */
extern int forcemap; /* do mapping even on non-Unicode fonts */
/* options - maximal limits */
extern int max_stemdepth; /* maximal depth of stem stack in interpreter */
/* options - debugging */
extern int absolute; /* print out in absolute values */
extern int reverse; /* reverse font to Type1 path directions */
/* options - suboptions of Outline Processing */
extern int optimize; /* enables space optimization */
extern int smooth; /* enable smoothing of outlines */
extern int transform; /* enables transformation to 1000x1000 matrix */
extern int hints; /* enables autogeneration of hints */
extern int subhints; /* enables autogeneration of substituted hints */
extern int trybold; /* try to guess whether the font is bold */
extern int correctwidth; /* try to correct the character width */
extern int vectorize; /* vectorize the bitmaps */
extern int use_autotrace; /* use the autotrace library on bitmap */
/* options - suboptions of File Generation */
extern int gen_pfa; /* generate the font file */
extern int gen_afm; /* generate the metrics file */
extern int gen_dvienc; /* generate the dvips encoding file */
/* not quite options to select a particular source encoding */
extern int force_pid; /* specific platform id */
extern int force_eid; /* specific encoding id */
/* other globals */
extern FILE *null_file, *pfa_file, *afm_file, *dvienc_file;
extern int numglyphs;
/* warnings */
#define WARNING_1 if(warnlevel >= 1)
#define WARNING_2 if(warnlevel >= 2)
#define WARNING_3 if(warnlevel >= 3)
#define WARNING_4 if(warnlevel >= 4)
/*
* Bitmap control macros
*/
#define BITMAP_BYTES(size) (((size)+7)>>3)
#define DEF_BITMAP(name, size) unsigned char name[BITMAP_BYTES(size)]
#define SET_BITMAP(name, bit) ( name[(bit)>>3] |= (1<<((bit)&7)) )
#define CLR_BITMAP(name, bit) ( name[(bit)>>3] &= ~(1<<((bit)&7)) )
#define IS_BITMAP(name, bit) ( name[(bit)>>3] & (1<<((bit)&7)) )
/* debugging */
/* debug flags */
#define DEBUG_UNICODE 0x00000001 /* unicode to 8-bit code conversion */
#define DEBUG_MAINSTEMS 0x00000002 /* glyph-wide main stem generation */
#define DEBUG_SUBSTEMS 0x00000004 /* substituted stem generation */
#define DEBUG_STEMS (DEBUG_MAINSTEMS|DEBUG_SUBSTEMS)
#define DEBUG_REVERSAL 0x00000008 /* reversal of the paths */
#define DEBUG_FIXCVDIR 0x00000010 /* fixcvdir() */
#define DEBUG_STEMOVERLAP 0x00000020 /* stemoverlap() */
#define DEBUG_BLUESTEMS 0x00000040 /* markbluestems() */
#define DEBUG_STRAIGHTEN 0x00000080 /* markbluestems() */
#define DEBUG_EXTMAP 0x00000100 /* parsing of external map */
#define DEBUG_TOINT 0x00000200 /* conversion of path to integer */
#define DEBUG_BUILDG 0x00000400 /* building of glyph path */
#define DEBUG_QUAD 0x00000800 /* splitting curves by quadrants */
#define DEBUG_SQEQ 0x00001000 /* square equation solver */
#define DEBUG_COMPOSITE 0x00002000 /* handling of composite glyphs */
#define DEBUG_FCONCISE 0x00004000 /* normalization of curves */
#define DEBUG_FT 0x00008000 /* FreeType front-end */
#define DEBUG_BITMAP 0x00010000 /* conversion from bitmap */
#define DEBUG_DISABLED 0x80000000 /* special flag: temporary disable debugging */
#if 0
/* at what we want to look now */
#ifndef DEBUG
# define DEBUG (DEBUG_BITMAP)
#endif
/* uncomment the next line if debugging data is wanted for one glyph only */
#define DBG_GLYPH "C118" /* */
#endif
#if 1
# define ISDBG(name) (0)
# define ENABLEDBG(condition) (0)
# define DISABLEDBG(condition) (0)
#else
extern int debug; /* collection of the flags */
/* this ISDBG will only work on ANSI C, not K&R */
# define ISDBG(name) ( (debug & DEBUG_DISABLED) ? 0 : (debug & (DEBUG_##name)) )
# define ENABLEDBG(condition) ( (condition) ? (debug&=~DEBUG_DISABLED) : 0 )
# define DISABLEDBG(condition) ( (condition) ? (debug|=DEBUG_DISABLED) : 0 )
#endif
#ifdef DBG_GLYPH
# define DBG_TO_GLYPH(g) DISABLEDBG( strcmp( (g)->name, DBG_GLYPH ) )
# define DBG_FROM_GLYPH(g) ENABLEDBG(1)
#else
# define DBG_TO_GLYPH(g) (0)
# define DBG_FROM_GLYPH(g) (0)
#endif
/* prototypes */
int iscale( int val);
double fscale( double val);
int unicode_rev_lookup( int unival);
void bmp_outline( GLYPH *g, int scale, char *bmap,
int xsz, int ysz, int xoff, int yoff);
int isign( int x);
int fsign( double x);
/* global metrics for a font */
struct font_metrics {
/* post */
double italic_angle;
short underline_position;
short underline_thickness;
short is_fixed_pitch;
/* hhea */
short ascender;
short descender;
/* head */
unsigned short units_per_em;
short bbox[4];
/* name */
char *name_copyright;
char *name_family;
char *name_style;
char *name_full;
char *name_version;
char *name_ps;
/* other */
int force_bold;
};
/* size of the encoding table - glyphs beyond 255 are actually unnumbered */
#define ENCTABSZ 1024
/* switch table structure for front-ends */
#define MAXSUFFIX 10
struct frontsw {
char *name; /* name of the front end */
char *descr; /* description of the front end */
char *suffix[MAXSUFFIX]; /* possible file name suffixes */
void (*open)(char *fname, char *arg); /* open font file */
void (*close)(void); /* close font file */
int (*nglyphs)(void); /* get the number of glyphs */
int (*glnames)(GLYPH *glyphs); /* get the names of glyphs */
void (*glmetrics)(GLYPH *glyphs); /* get the metrics of glyphs */
int (*glenc)(GLYPH *glyphs, int *enc, int *unimap); /* get the encoding */
void (*fnmetrics)(struct font_metrics *fm); /* get the font metrics */
void (*glpath)(int glyphno, GLYPH *glyphs); /* get the glyph path */
void (*kerning)(GLYPH *glyph_list); /* extract the kerning data */
};
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