368 lines
12 KiB
C
368 lines
12 KiB
C
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/*
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* Copyright 2000 Computing Research Labs, New Mexico State University
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* Copyright 2001 Francesco Zappa Nardelli
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
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* OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __BDF_H__
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#define __BDF_H__
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/*
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* $Id$
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*/
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#include <string.h>
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#include <ft2build.h>
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#include FT_INTERNAL_OBJECTS_H
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#include FT_INTERNAL_STREAM_H
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FT_BEGIN_HEADER
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/* Imported from bdfP.h */
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#ifndef MYABS
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#define MYABS(xx) ((xx) < 0 ? -(xx) : (xx))
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#endif
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#define _bdf_glyph_modified(map, e) ((map)[(e) >> 5] & (1 << ((e) & 31)))
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#define _bdf_set_glyph_modified(map, e) (map)[(e) >> 5] |= (1 << ((e) & 31))
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#define _bdf_clear_glyph_modified(map, e) (map)[(e) >> 5] &= ~(1 << ((e) & 31))
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/* end of bdfP.h */
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/**************************************************************************
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*
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* BDF font options macros and types.
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*
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**************************************************************************/
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#define BDF_UNIX_EOL 1 /* Save fonts with Unix LF. */
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#define BDF_DOS_EOL 2 /* Save fonts with DOS CRLF. */
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#define BDF_MAC_EOL 3 /* Save fonts with Mac CR. */
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#define BDF_CORRECT_METRICS 0x01 /* Correct invalid metrics when loading. */
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#define BDF_KEEP_COMMENTS 0x02 /* Preserve the font comments. */
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#define BDF_KEEP_UNENCODED 0x04 /* Keep the unencoded glyphs. */
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#define BDF_PROPORTIONAL 0x08 /* Font has proportional spacing. */
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#define BDF_MONOWIDTH 0x10 /* Font has mono width. */
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#define BDF_CHARCELL 0x20 /* Font has charcell spacing. */
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#define BDF_ALL_SPACING (BDF_PROPORTIONAL|BDF_MONOWIDTH|BDF_CHARCELL)
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#define BDF_DEFAULT_LOAD_OPTIONS \
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(BDF_CORRECT_METRICS|BDF_KEEP_COMMENTS|BDF_KEEP_UNENCODED|BDF_PROPORTIONAL)
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typedef struct {
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int ttf_hint;
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int correct_metrics;
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int keep_unencoded;
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int keep_comments;
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int pad_cells;
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int font_spacing;
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long point_size;
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unsigned long resolution_x;
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unsigned long resolution_y;
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int bits_per_pixel;
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int eol;
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} bdf_options_t;
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/*
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* Callback function type for unknown configuration options.
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*/
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typedef int (*bdf_options_callback_t) (bdf_options_t *opts,
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char **params,
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unsigned long nparams,
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void *client_data);
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/**************************************************************************
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*
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* BDF font property macros and types.
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*
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**************************************************************************/
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#define BDF_ATOM 1
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#define BDF_INTEGER 2
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#define BDF_CARDINAL 3
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/*
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* This structure represents a particular property of a font.
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* There are a set of defaults and each font has their own.
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*/
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typedef struct {
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char *name; /* Name of the property. */
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int format; /* Format of the property. */
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int builtin; /* A builtin property. */
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union {
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char *atom;
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long int32;
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unsigned long card32;
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} value; /* Value of the property. */
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} bdf_property_t;
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/**************************************************************************
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*
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* BDF font metric and glyph types.
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*
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**************************************************************************/
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/*
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* A general bitmap type, mostly used when the glyph bitmap is being edited.
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*/
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typedef struct {
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short x;
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short y;
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unsigned short width;
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unsigned short height;
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unsigned short bpp;
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unsigned short pad;
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unsigned char *bitmap;
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unsigned long bytes;
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} bdf_bitmap_t;
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typedef struct {
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int font_spacing;
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unsigned short swidth;
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unsigned short dwidth;
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unsigned short width;
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unsigned short height;
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short x_offset;
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short y_offset;
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short ascent;
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short descent;
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} bdf_metrics_t;
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typedef struct {
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unsigned short width;
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unsigned short height;
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short x_offset;
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short y_offset;
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short ascent;
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short descent;
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} bdf_bbx_t;
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typedef struct {
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char *name; /* Glyph name. */
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long encoding; /* Glyph encoding. */
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unsigned short swidth; /* Scalable width. */
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unsigned short dwidth; /* Device width. */
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bdf_bbx_t bbx; /* Glyph bounding box. */
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unsigned char *bitmap; /* Glyph bitmap. */
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unsigned short bytes; /* Number of bytes used for the bitmap. */
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} bdf_glyph_t;
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typedef struct {
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char *key;
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void *data;
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} _hashnode, *hashnode;
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typedef struct {
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int limit;
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int size;
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int used;
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hashnode *table;
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} hashtable;
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typedef struct {
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unsigned short pad; /* Pad to 4-byte boundary. */
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unsigned short bpp; /* Bits per pixel. */
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long start; /* Beginning encoding value of glyphs. */
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long end; /* Ending encoding value of glyphs. */
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bdf_glyph_t *glyphs; /* Glyphs themselves. */
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unsigned long glyphs_size; /* Glyph structures allocated. */
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unsigned long glyphs_used; /* Glyph structures used. */
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bdf_bbx_t bbx; /* Overall bounding box of glyphs. */
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} bdf_glyphlist_t;
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typedef struct {
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char *name; /* Name of the font. */
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bdf_bbx_t bbx; /* Font bounding box. */
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long point_size; /* Point size of the font. */
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unsigned long resolution_x; /* Font horizontal resolution. */
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unsigned long resolution_y; /* Font vertical resolution. */
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int hbf; /* Font came from an HBF font. */
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int spacing; /* Font spacing value. */
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unsigned short monowidth; /* Logical width for monowidth font. */
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long default_glyph; /* Encoding of the default glyph. */
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long font_ascent; /* Font ascent. */
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long font_descent; /* Font descent. */
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long glyphs_size; /* Glyph structures allocated. */
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long glyphs_used; /* Glyph structures used. */
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bdf_glyph_t *glyphs; /* Glyphs themselves. */
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long unencoded_size; /* Unencoded glyph structures allocated. */
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long unencoded_used; /* Unencoded glyph structures used. */
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bdf_glyph_t *unencoded; /* Unencoded glyphs themselves. */
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unsigned long props_size; /* Font properties allocated. */
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unsigned long props_used; /* Font properties used. */
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bdf_property_t *props; /* Font properties themselves. */
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char *comments; /* Font comments. */
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unsigned long comments_len; /* Length of comment string. */
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char *acmsgs; /* Auto-correction messages. */
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unsigned long acmsgs_len; /* Length of auto-correction messages. */
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bdf_glyphlist_t overflow; /* Storage used for glyph insertion. */
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void *internal; /* Internal data for the font. */
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unsigned long nmod[2048]; /* Bitmap indicating modified glyphs. */
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unsigned long umod[2048]; /* Bitmap indicating modified unencoded. */
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unsigned short modified; /* Boolean indicating font modified. */
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unsigned short bpp; /* Bits per pixel. */
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FT_Memory memory;
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bdf_property_t *user_props;
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unsigned long nuser_props;
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hashtable proptbl;
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} bdf_font_t;
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/**************************************************************************
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*
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* Types for load/save callbacks.
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*
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**************************************************************************/
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/*
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* Callback reasons.
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*/
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#define BDF_LOAD_START 1
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#define BDF_LOADING 2
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#define BDF_SAVE_START 3
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#define BDF_SAVING 4
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#define BDF_TRANSLATE_START 5
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#define BDF_TRANSLATING 6
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#define BDF_ROTATE_START 7
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#define BDF_ROTATING 8
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#define BDF_SHEAR_START 9
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#define BDF_SHEARING 10
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#define BDF_GLYPH_NAME_START 11
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#define BDF_GLYPH_NAME 12
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#define BDF_EXPORT_START 13
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#define BDF_EXPORTING 14
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#define BDF_EMBOLDEN_START 15
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#define BDF_EMBOLDENING 16
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#define BDF_WARNING 20
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#define BDF_ERROR 21
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/*
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* Error codes.
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*/
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#define BDF_OK 0
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#define BDF_MISSING_START -1
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#define BDF_MISSING_FONTNAME -2
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#define BDF_MISSING_SIZE -3
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#define BDF_MISSING_FONTBBX -4
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#define BDF_MISSING_CHARS -5
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#define BDF_MISSING_STARTCHAR -6
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#define BDF_MISSING_ENCODING -7
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#define BDF_MISSING_BBX -8
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#define BDF_NOT_CONSOLE_FONT -10
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#define BDF_NOT_MF_FONT -11
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#define BDF_NOT_PSF_FONT -12
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#define BDF_OUT_OF_MEMORY -20
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#define BDF_EMPTY_FONT -99
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#define BDF_INVALID_LINE -100
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typedef struct {
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unsigned long reason;
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unsigned long current;
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unsigned long total;
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unsigned long errlineno;
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} bdf_callback_struct_t;
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typedef void (*bdf_callback_t) (bdf_callback_struct_t *call_data,
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void *client_data);
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/**************************************************************************
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*
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* BDF font API.
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*
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**************************************************************************/
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/*
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* Startup and shutdown functions are no more needed
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*/
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/*
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* Font options functions.
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*/
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/*extern void bdf_default_options (bdf_options_t *opts);*/
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/*
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* Font load, create, save and free functions.
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*/
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FT_LOCAL( bdf_font_t* ) bdf_load_font (FT_Stream stream, FT_Memory memory,
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bdf_options_t *opts,
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bdf_callback_t callback, void *data);
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FT_LOCAL( void ) bdf_free_font (bdf_font_t *font);
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/*
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* Font property functions.
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*/
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/* extern void bdf_create_property (char *name, int type, bdf_font_t *font); */
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FT_LOCAL( bdf_property_t* ) bdf_get_property (char *name, bdf_font_t *font);
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FT_LOCAL( unsigned long ) bdf_property_list (bdf_property_t **props);
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FT_LOCAL( void ) bdf_add_font_property (bdf_font_t *font,
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bdf_property_t *property);
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FT_LOCAL( void ) bdf_delete_font_property (bdf_font_t *font, char *name);
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FT_LOCAL( bdf_property_t* ) bdf_get_font_property (bdf_font_t *font,
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char *name);
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FT_LOCAL( unsigned long ) bdf_font_property_list (bdf_font_t *font,
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bdf_property_t **props);
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/*
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* Font comment functions.
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*/
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FT_LOCAL( int ) bdf_replace_comments (bdf_font_t *font, char *comments,
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unsigned long comments_len);
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/*
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* Other miscellaneous functions.
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*/
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FT_LOCAL( void ) bdf_set_default_metrics (bdf_font_t *font);
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/* */
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FT_END_HEADER
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#endif /* _h_bdf */
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