evil-qemacs/fbfrender.h
Charlie Gordon 7e70e611b6 Use char32_t for all code point variables and arrays
- char32_t is defined in cutils.h but may conflict with <uchar.h>
- all qe_isxxx functions take a char32_t
- add etf8x encoding for full range of char32_t type
- add utf8_decode_strict()
- add ustr_match_keyword()
- utf8_encode() / utf8_decode() handle up to 32 bits
- improve detect_charset():
  - detect utf8 and utf8x
  - avoid failure on partial utf8 sequence at end of buffer
  - detect overlong utf8 sequences
- fix display bugs for code points beyond MAX_UNICODE_DISPLAY
- simplify do_compare_windows(), avoid magic char values.
- rename functions:
    eb_encode_uchar -> eb_encode_char32
    eb_insert_uchar -> eb_insert_char32
    eb_insert_uchars -> eb_insert_char32_n
    eb_match_uchar -> eb_match_char32
    eb_delete_uchar -> eb_delete_char32
    eb_replace_uchar -> eb_replace_char32
    utf8_to_unicode -> utf8_to_char32
- use char32_t for all variables and arrays holding code-points
- fix some language syntax parsers.
- fix detect_eol_type_32bit(), used uint16_t instead of uint32_t
- bump VERSION to 5.4.0
2022-10-29 19:43:38 +02:00

57 lines
2 KiB
C

/*
* fbfrender - FBF font cache and renderer
*
* Copyright (c) 2001, 2002 Fabrice Bellard.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef FBFRENDER_H
#define FBFRENDER_H
/* glyph cache */
typedef struct GlyphCache {
struct GlyphCache *hash_next;
struct GlyphCache *prev, *next;
void *private; /* private data available for the driver, initialized to NULL */
/* font info */
short size; /* font size */
unsigned short style; /* font style */
short w, h; /* glyph bitmap size */
short x, y; /* glyph bitmap offset */
unsigned short index; /* glyph index */
unsigned short data_size;
short xincr; /* glyph x increment */
unsigned char is_fallback; /* true if fallback glyph */
unsigned char data[0]; /* CG: C99 flexible array */
} GlyphCache;
void fbf_text_metrics(QEditScreen *s, QEFont *font,
QECharMetrics *metrics,
const char32_t *str, int len);
GlyphCache *decode_cached_glyph(QEditScreen *s, QEFont *font, int code);
QEFont *fbf_open_font(QEditScreen *s, int style, int size);
void fbf_close_font(QEditScreen *s, QEFont **fontp);
int fbf_render_init(const char *font_path);
void fbf_render_cleanup(void);
struct fbf_font {
const unsigned char *data;
unsigned int size;
};
extern const struct fbf_font fbf_fonts[];
#endif