Edit
kc3-lang/freetype/src/bdf/bdf.h
Alexei Podtelezhnikov
- src/bdf/bdf.h
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/* * 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 #include FT_INTERNAL_HASH_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. */ unsigned 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 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. */ unsigned 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. */ void* internal; /* Internal data for the font. */ unsigned short bpp; /* Bits per pixel. */ FT_Memory memory; bdf_property_t* user_props; unsigned long nuser_props; FT_HashRec 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 */