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/*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
*
* This file is part of libass.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef LIBASS_FONT_H
#define LIBASS_FONT_H
#include <stdint.h>
#include <ft2build.h>
#include FT_GLYPH_H
#include FT_OUTLINE_H
typedef struct ass_font ASS_Font;
typedef struct ass_font_desc ASS_FontDesc;
#include "ass.h"
#include "ass_types.h"
#include "ass_fontselect.h"
#include "ass_cache.h"
#define VERTICAL_LOWER_BOUND 0x02f1
#define ASS_FONT_MAX_FACES 10
#define DECO_UNDERLINE 1
#define DECO_STRIKETHROUGH 2
struct ass_font_desc {
char *family;
unsigned bold;
unsigned italic;
int vertical; // @font vertical layout
};
struct ass_font {
ASS_FontDesc desc;
ASS_Library *library;
FT_Library ftlibrary;
int faces_uid[ASS_FONT_MAX_FACES];
FT_Face faces[ASS_FONT_MAX_FACES];
ASS_ShaperFontData *shaper_priv;
int n_faces;
double scale_x, scale_y; // current transform
FT_Vector v; // current shift
double size;
};
ASS_Font *ass_font_new(Cache *font_cache, ASS_Library *library,
FT_Library ftlibrary, ASS_FontSelector *fontsel,
ASS_FontDesc *desc);
void ass_font_set_transform(ASS_Font *font, double scale_x,
double scale_y, FT_Vector *v);
void ass_face_set_size(FT_Face face, double size);
void ass_font_set_size(ASS_Font *font, double size);
void ass_font_get_asc_desc(ASS_Font *font, uint32_t ch, int *asc,
int *desc);
int ass_font_get_index(ASS_FontSelector *fontsel, ASS_Font *font,
uint32_t symbol, int *face_index, int *glyph_index);
uint32_t ass_font_index_magic(FT_Face face, uint32_t symbol);
FT_Glyph ass_font_get_glyph(ASS_Font *font,
uint32_t ch, int face_index, int index,
ASS_Hinting hinting, int deco);
FT_Vector ass_font_get_kerning(ASS_Font *font, uint32_t c1, uint32_t c2);
void ass_font_free(ASS_Font *font);
void outline_translate(const ASS_Outline *outline, FT_Pos dx, FT_Pos dy);
void outline_transform(const ASS_Outline *outline, const FT_Matrix *matrix);
void outline_get_cbox(const ASS_Outline *outline, FT_BBox *cbox);
void fix_freetype_stroker(ASS_Outline *outline, int border_x, int border_y);
int outline_alloc(ASS_Outline *outline, size_t n_contours, size_t n_points);
ASS_Outline *outline_convert(const FT_Outline *source);
ASS_Outline *outline_copy(const ASS_Outline *source);
void outline_free(ASS_Outline *outline);
#endif /* LIBASS_FONT_H */
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