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/*
* 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.io/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 gI8 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
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