/* | |
* Copyright 2000 Computing Research Labs, New Mexico State University | |
* Copyright 2001-2004, 2011 Francesco Zappa Nardelli | |
* | |
* Permission is hereby granted, free of charge, to any person obtaining a | |
* copy of this software and associated documentation files (the "Software"), | |
* to deal in the Software without restriction, including without limitation | |
* the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
* and/or sell copies of the Software, and to permit persons to whom the | |
* Software is furnished to do so, subject to the following conditions: | |
* | |
* The above copyright notice and this permission notice shall be included in | |
* all copies or substantial portions of the Software. | |
* | |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
* THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY | |
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT | |
* OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR | |
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
*/ | |
#ifndef __BDF_H__ | |
#define __BDF_H__ | |
/* | |
* Based on bdf.h,v 1.16 2000/03/16 20:08:51 mleisher | |
*/ | |
#include <ft2build.h> | |
#include FT_INTERNAL_OBJECTS_H | |
#include FT_INTERNAL_STREAM_H | |
FT_BEGIN_HEADER | |
/* Imported from bdfP.h */ | |
#define _bdf_glyph_modified( map, e ) \ | |
( (map)[(e) >> 5] & ( 1UL << ( (e) & 31 ) ) ) | |
#define _bdf_set_glyph_modified( map, e ) \ | |
( (map)[(e) >> 5] |= ( 1UL << ( (e) & 31 ) ) ) | |
#define _bdf_clear_glyph_modified( map, e ) \ | |
( (map)[(e) >> 5] &= ~( 1UL << ( (e) & 31 ) ) ) | |
/* end of bdfP.h */ | |
/*************************************************************************/ | |
/* */ | |
/* BDF font options macros and types. */ | |
/* */ | |
/*************************************************************************/ | |
#define BDF_CORRECT_METRICS 0x01 /* Correct invalid metrics when loading. */ | |
#define BDF_KEEP_COMMENTS 0x02 /* Preserve the font comments. */ | |
#define BDF_KEEP_UNENCODED 0x04 /* Keep the unencoded glyphs. */ | |
#define BDF_PROPORTIONAL 0x08 /* Font has proportional spacing. */ | |
#define BDF_MONOWIDTH 0x10 /* Font has mono width. */ | |
#define BDF_CHARCELL 0x20 /* Font has charcell spacing. */ | |
#define BDF_ALL_SPACING ( BDF_PROPORTIONAL | \ | |
BDF_MONOWIDTH | \ | |
BDF_CHARCELL ) | |
#define BDF_DEFAULT_LOAD_OPTIONS ( BDF_CORRECT_METRICS | \ | |
BDF_KEEP_COMMENTS | \ | |
BDF_KEEP_UNENCODED | \ | |
BDF_PROPORTIONAL ) | |
typedef struct bdf_options_t_ | |
{ | |
int correct_metrics; | |
int keep_unencoded; | |
int keep_comments; | |
int font_spacing; | |
} bdf_options_t; | |
/* Callback function type for unknown configuration options. */ | |
typedef int | |
(*bdf_options_callback_t)( bdf_options_t* opts, | |
char** params, | |
unsigned long nparams, | |
void* client_data ); | |
/*************************************************************************/ | |
/* */ | |
/* BDF font property macros and types. */ | |
/* */ | |
/*************************************************************************/ | |
#define BDF_ATOM 1 | |
#define BDF_INTEGER 2 | |
#define BDF_CARDINAL 3 | |
/* This structure represents a particular property of a font. */ | |
/* There are a set of defaults and each font has their own. */ | |
typedef struct bdf_property_t_ | |
{ | |
char* name; /* Name of the property. */ | |
int format; /* Format of the property. */ | |
int builtin; /* A builtin property. */ | |
union | |
{ | |
char* atom; | |
long l; | |
unsigned long ul; | |
} value; /* Value of the property. */ | |
} bdf_property_t; | |
/*************************************************************************/ | |
/* */ | |
/* BDF font metric and glyph types. */ | |
/* */ | |
/*************************************************************************/ | |
typedef struct bdf_bbx_t_ | |
{ | |
unsigned short width; | |
unsigned short height; | |
short x_offset; | |
short y_offset; | |
short ascent; | |
short descent; | |
} bdf_bbx_t; | |
typedef struct bdf_glyph_t_ | |
{ | |
char* name; /* Glyph name. */ | |
long encoding; /* Glyph encoding. */ | |
unsigned short swidth; /* Scalable width. */ | |
unsigned short dwidth; /* Device width. */ | |
bdf_bbx_t bbx; /* Glyph bounding box. */ | |
unsigned char* bitmap; /* Glyph bitmap. */ | |
unsigned long bpr; /* Number of bytes used per row. */ | |
unsigned short bytes; /* Number of bytes used for the bitmap. */ | |
} bdf_glyph_t; | |
typedef struct _hashnode_ | |
{ | |
const char* key; | |
size_t data; | |
} _hashnode, *hashnode; | |
typedef struct hashtable_ | |
{ | |
unsigned int limit; | |
unsigned int size; | |
unsigned int used; | |
hashnode* table; | |
} hashtable; | |
typedef struct bdf_glyphlist_t_ | |
{ | |
unsigned short pad; /* Pad to 4-byte boundary. */ | |
unsigned short bpp; /* Bits per pixel. */ | |
long start; /* Beginning encoding value of glyphs. */ | |
long end; /* Ending encoding value of glyphs. */ | |
bdf_glyph_t* glyphs; /* Glyphs themselves. */ | |
unsigned long glyphs_size; /* Glyph structures allocated. */ | |
unsigned long glyphs_used; /* Glyph structures used. */ | |
bdf_bbx_t bbx; /* Overall bounding box of glyphs. */ | |
} bdf_glyphlist_t; | |
typedef struct bdf_font_t_ | |
{ | |
char* name; /* Name of the font. */ | |
bdf_bbx_t bbx; /* Font bounding box. */ | |
unsigned long point_size; /* Point size of the font. */ | |
unsigned long resolution_x; /* Font horizontal resolution. */ | |
unsigned long resolution_y; /* Font vertical resolution. */ | |
int spacing; /* Font spacing value. */ | |
unsigned short monowidth; /* Logical width for monowidth font. */ | |
long default_char; /* Encoding of the default glyph. */ | |
long font_ascent; /* Font ascent. */ | |
long font_descent; /* Font descent. */ | |
unsigned long glyphs_size; /* Glyph structures allocated. */ | |
unsigned long glyphs_used; /* Glyph structures used. */ | |
bdf_glyph_t* glyphs; /* Glyphs themselves. */ | |
unsigned long unencoded_size; /* Unencoded glyph struct. allocated. */ | |
unsigned long unencoded_used; /* Unencoded glyph struct. used. */ | |
bdf_glyph_t* unencoded; /* Unencoded glyphs themselves. */ | |
unsigned long props_size; /* Font properties allocated. */ | |
unsigned long props_used; /* Font properties used. */ | |
bdf_property_t* props; /* Font properties themselves. */ | |
char* comments; /* Font comments. */ | |
unsigned long comments_len; /* Length of comment string. */ | |
bdf_glyphlist_t overflow; /* Storage used for glyph insertion. */ | |
void* internal; /* Internal data for the font. */ | |
/* The size of the next two arrays must be in sync with the */ | |
/* size of the `have' array in the `bdf_parse_t' structure. */ | |
unsigned long nmod[34816]; /* Bitmap indicating modified glyphs. */ | |
unsigned long umod[34816]; /* Bitmap indicating modified */ | |
/* unencoded glyphs. */ | |
unsigned short modified; /* Boolean indicating font modified. */ | |
unsigned short bpp; /* Bits per pixel. */ | |
FT_Memory memory; | |
bdf_property_t* user_props; | |
unsigned long nuser_props; | |
hashtable proptbl; | |
} bdf_font_t; | |
/*************************************************************************/ | |
/* */ | |
/* Types for load/save callbacks. */ | |
/* */ | |
/*************************************************************************/ | |
/* Error codes. */ | |
#define BDF_MISSING_START -1 | |
#define BDF_MISSING_FONTNAME -2 | |
#define BDF_MISSING_SIZE -3 | |
#define BDF_MISSING_CHARS -4 | |
#define BDF_MISSING_STARTCHAR -5 | |
#define BDF_MISSING_ENCODING -6 | |
#define BDF_MISSING_BBX -7 | |
#define BDF_OUT_OF_MEMORY -20 | |
#define BDF_INVALID_LINE -100 | |
/*************************************************************************/ | |
/* */ | |
/* BDF font API. */ | |
/* */ | |
/*************************************************************************/ | |
FT_LOCAL( FT_Error ) | |
bdf_load_font( FT_Stream stream, | |
FT_Memory memory, | |
bdf_options_t* opts, | |
bdf_font_t* *font ); | |
FT_LOCAL( void ) | |
bdf_free_font( bdf_font_t* font ); | |
FT_LOCAL( bdf_property_t * ) | |
bdf_get_property( char* name, | |
bdf_font_t* font ); | |
FT_LOCAL( bdf_property_t * ) | |
bdf_get_font_property( bdf_font_t* font, | |
const char* name ); | |
FT_END_HEADER | |
#endif /* __BDF_H__ */ | |
/* END */ |