blob: 043265c7de297f1fde9d68674cc37ee4ed00aa66 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/* Automatic kerning for font rendering. This solves the issue where some
* fonts (especially serif fonts) have too much space between specific
* character pairs, like WA or L'.
*/
#ifndef _MF_KERNING_H_
#define _MF_KERNING_H_
#include "mf_config.h"
#include "mf_rlefont.h"
/* Compute the kerning adjustment when c1 is followed by c2.
*
* font: Pointer to the font definition.
* c1: The previous character.
* c2: The next character to render.
*
* Returns the offset to add to the x position for c2.
*/
#if MF_USE_KERNING
MF_EXTERN int8_t mf_compute_kerning(const struct mf_font_s *font,
mf_char c1, mf_char c2);
#else
#define mf_compute_kerning(font, c1, c2) 0
#endif
#endif
|