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efl/src/lib/evas/common/evas_font.h

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#ifndef _EVAS_FONT_H
#define _EVAS_FONT_H
typedef unsigned char DATA8;
typedef unsigned long long DATA64;
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_GLYPH_H
#include FT_SIZES_H
#include FT_MODULE_H
#ifndef FT_HAS_COLOR
# define FT_HAS_COLOR(face) 0
#endif
#ifndef FT_LOAD_COLOR
# define FT_LOAD_COLOR FT_LOAD_DEFAULT
#endif
#include <Eina.h>
#include "evas_text_utils.h"
#ifdef EAPI
# undef EAPI
#endif
#ifdef _WIN32
# ifdef EFL_BUILD
# ifdef DLL_EXPORT
# define EAPI __declspec(dllexport)
# else
# define EAPI
# endif
# else
# define EAPI __declspec(dllimport)
# endif
#else
# ifdef __GNUC__
# if __GNUC__ >= 4
# define EAPI __attribute__ ((visibility("default")))
# else
# define EAPI
# endif
# else
# define EAPI
# endif
#endif
#define LK(x) Eina_Lock x
#define LKI(x) eina_lock_new(&(x))
#define LKD(x) eina_lock_free(&(x))
#define LKL(x) eina_lock_take(&(x))
#define LKT(x) eina_lock_take_try(&(x))
#define LKU(x) eina_lock_release(&(x))
#define LKDBG(x) eina_lock_debug(&(x))
/**
* See explanation of variation_sequences at:
* https://unicode.org/Public/UCD/latest/ucd/StandardizedVariants.txt
* https://unicode.org/reports/tr37/
* https://unicode.org/ivd/
* https://www.freetype.org/freetype2/docs/reference/ft2-glyph_variants.html
*/
#define VAR_SEQ(x) GENERIC_VARIATION_SEQUENCES(x) | IDEOGRAPHICS_VARIATION_SEQUENCES(x) | MANGOLIAN_VARIATION_SEQUENCES(x)
#define GENERIC_VARIATION_SEQUENCES(x) (x>=0xFE00 && x<=0xFE0F) ? x : 0
#define IDEOGRAPHICS_VARIATION_SEQUENCES(x) (x>=0xE0100 && x<=0xE01EF) ? x : 0
#define MANGOLIAN_VARIATION_SEQUENCES(x) (x>=0x180B && x<=0x180D) ? x : 0
/**
* http://unicode.org/emoji/charts/emoji-variants.html
*/
#define VARIATION_EMOJI_PRESENTATION 0xFE0F
#define VARIATION_TEXT_PRESENTATION 0xFE0E
/**
* These Options (Flags) are used with evas_common_font_glyph_search function
*/
#define EVAS_FONT_SEARCH_OPTION_NONE 0x0000
#define EVAS_FONT_SEARCH_OPTION_SKIP_COLOR 0x0001
#define FASH_INT_MAGIC 0x01012345
#define FASH_GLYPH_MAGIC 0x02012345
enum _Evas_Font_Style
{
EVAS_FONT_STYLE_SLANT,
EVAS_FONT_STYLE_WEIGHT,
EVAS_FONT_STYLE_WIDTH
};
enum _Evas_Font_Slant
{
EVAS_FONT_SLANT_NORMAL,
EVAS_FONT_SLANT_OBLIQUE,
EVAS_FONT_SLANT_ITALIC
};
enum _Evas_Font_Weight
{
EVAS_FONT_WEIGHT_NORMAL,
EVAS_FONT_WEIGHT_THIN,
EVAS_FONT_WEIGHT_ULTRALIGHT,
EVAS_FONT_WEIGHT_EXTRALIGHT,
EVAS_FONT_WEIGHT_LIGHT,
EVAS_FONT_WEIGHT_BOOK,
EVAS_FONT_WEIGHT_MEDIUM,
EVAS_FONT_WEIGHT_SEMIBOLD,
EVAS_FONT_WEIGHT_BOLD,
EVAS_FONT_WEIGHT_ULTRABOLD,
EVAS_FONT_WEIGHT_EXTRABOLD,
EVAS_FONT_WEIGHT_BLACK,
EVAS_FONT_WEIGHT_EXTRABLACK
};
enum _Evas_Font_Width
{
EVAS_FONT_WIDTH_NORMAL,
EVAS_FONT_WIDTH_ULTRACONDENSED,
EVAS_FONT_WIDTH_EXTRACONDENSED,
EVAS_FONT_WIDTH_CONDENSED,
EVAS_FONT_WIDTH_SEMICONDENSED,
EVAS_FONT_WIDTH_SEMIEXPANDED,
EVAS_FONT_WIDTH_EXPANDED,
EVAS_FONT_WIDTH_EXTRAEXPANDED,
EVAS_FONT_WIDTH_ULTRAEXPANDED
};
enum _Evas_Font_Spacing
{
EVAS_FONT_SPACING_PROPORTIONAL,
EVAS_FONT_SPACING_DUAL,
EVAS_FONT_SPACING_MONO,
EVAS_FONT_SPACING_CHARCELL
};
typedef enum _Evas_Font_Style Evas_Font_Style;
typedef enum _Evas_Font_Slant Evas_Font_Slant;
typedef enum _Evas_Font_Weight Evas_Font_Weight;
typedef enum _Evas_Font_Width Evas_Font_Width;
typedef enum _Evas_Font_Spacing Evas_Font_Spacing;
typedef struct _Evas_Font_Dir Evas_Font_Dir;
typedef struct _Evas_Font Evas_Font;
typedef struct _Evas_Font_Alias Evas_Font_Alias;
typedef struct _Evas_Font_Description Evas_Font_Description;
typedef struct _RGBA_Font RGBA_Font;
typedef struct _RGBA_Font_Int RGBA_Font_Int;
typedef struct _RGBA_Font_Source RGBA_Font_Source;
typedef struct _RGBA_Font_Glyph RGBA_Font_Glyph;
typedef struct _RGBA_Font_Glyph_Out RGBA_Font_Glyph_Out;
typedef struct _Fash_Item_variation_Index_Item Fash_Item_variation_Index_Item;
typedef struct _Fash_Item_variation_List Fash_Item_variation_List;
typedef struct _Fash_Item_Index_Map_Variations Fash_Item_Index_Map_Variations;
typedef struct _Fash_Item_Index_Map Fash_Item_Index_Map;
typedef struct _Fash_Int_Map Fash_Int_Map;
typedef struct _Fash_Int_Map2 Fash_Int_Map2;
typedef struct _Fash_Int Fash_Int;
struct _Fash_Item_Index_Map
{
RGBA_Font_Int *fint;
int index;
};
struct _Fash_Item_variation_Index_Item
{
Fash_Item_Index_Map item;
Eina_Unicode variation_sequence;
};
struct _Fash_Item_variation_List
{
Fash_Item_variation_Index_Item *list;
size_t length;
size_t capacity;
};
struct _Fash_Item_Index_Map_Variations
{
Fash_Item_Index_Map item;
Fash_Item_variation_List *variations;
};
struct _Fash_Int_Map
{
Fash_Item_Index_Map_Variations items[256];
};
struct _Fash_Int_Map2
{
Fash_Int_Map *bucket[256];
};
struct _Fash_Int
{
unsigned int MAGIC;
Fash_Int_Map2 *bucket[256];
void (*freeme) (Fash_Int *fash);
};
typedef struct _Fash_Glyph_Map Fash_Glyph_Map;
typedef struct _Fash_Glyph_Map2 Fash_Glyph_Map2;
typedef struct _Fash_Glyph Fash_Glyph;
struct _Fash_Glyph_Map
{
RGBA_Font_Glyph *item[256];
};
struct _Fash_Glyph_Map2
{
Fash_Glyph_Map *bucket[256];
};
struct _Fash_Glyph
{
unsigned int MAGIC;
Fash_Glyph_Map2 *bucket[256];
void (*freeme) (Fash_Glyph *fash);
};
typedef enum _Font_Hint_Flags
{
FONT_NO_HINT,
FONT_AUTO_HINT,
FONT_BYTECODE_HINT
} Font_Hint_Flags;
typedef enum _Font_Rend_Flags
{
FONT_REND_REGULAR = 0,
FONT_REND_SLANT = (1 << 0),
FONT_REND_WEIGHT = (1 << 1),
} Font_Rend_Flags;
struct _RGBA_Font
{
Eina_List *fonts;
Fash_Int *fash;
Font_Hint_Flags hinting;
int references;
LK(lock);
unsigned char sizeok : 1;
};
struct _Evas_Font_Dir
{
Eina_Hash *lookup;
Eina_List *fonts;
Eina_List *aliases;
DATA64 dir_mod_time;
DATA64 fonts_dir_mod_time;
DATA64 fonts_alias_mod_time;
};
struct _Evas_Font
{
struct {
const char *prop[14];
} x;
struct {
const char *name;
} simple;
const char *path;
char type;
};
struct _Evas_Font_Alias
{
const char *alias;
Evas_Font *fn;
};
struct _Evas_Font_Description
{
int ref;
Eina_Stringshare *name;
Eina_Stringshare *fallbacks;
Eina_Stringshare *lang;
Eina_Stringshare *style;
Evas_Font_Slant slant;
Evas_Font_Weight weight;
Evas_Font_Width width;
Evas_Font_Spacing spacing;
Eina_Bool is_new : 1;
};
struct _RGBA_Font_Int
{
EINA_INLIST;
RGBA_Font_Source *src;
Eina_Hash *kerning;
Fash_Glyph *fash;
unsigned int size;
double scale_factor;
Eina_Bool is_resized;
int real_size;
int max_h;
int references;
int usage;
struct {
FT_Size size;
#ifdef USE_HARFBUZZ
void *hb_font;
#endif
} ft;
LK(ft_mutex);
Font_Hint_Flags hinting;
Font_Rend_Flags wanted_rend; /* The wanted rendering style */
Font_Rend_Flags runtime_rend; /* The rendering we need to do on runtime
in order to comply with the wanted_rend. */
Eina_List *task;
int generation;
Efl_Text_Font_Bitmap_Scalable bitmap_scalable;
unsigned char sizeok : 1;
unsigned char inuse : 1;
};
struct _RGBA_Font_Source
{
const char *name;
const char *file;
void *data;
unsigned int current_size;
int data_size;
int references;
struct {
int orig_upem;
FT_Face face;
} ft;
};
/*
* laziness wins for now. The parts used from the freetpye struct are
* kept intact to avoid changing the code using it until we know exactly
* what needs to be changed
*/
struct _RGBA_Font_Glyph_Out
{
unsigned char *rle;
struct {
unsigned char *buffer;
unsigned short rows;
unsigned short width;
unsigned short pitch;
unsigned short rle_alloc : 1;
unsigned short no_free_glout : 1;
} bitmap;
int rle_size;
};
struct _RGBA_Font_Glyph
{
FT_UInt index;
Evas_Coord width;
Evas_Coord x_bear;
Evas_Coord y_bear;
FT_Glyph glyph;
RGBA_Font_Glyph_Out *glyph_out;
void *col_dat;
/* this is a problem - only 1 engine at a time can extend such a font... grrr */
void *ext_dat;
void (*ext_dat_free) (void *ext_dat);
RGBA_Font_Int *fi;
};
/* The tangent of the slant angle we do on runtime. */
#define _EVAS_FONT_SLANT_TAN 0.221694663
/* main */
EAPI void evas_common_font_init (void);
EAPI void evas_common_font_shutdown (void);
EAPI void evas_common_font_font_all_unload (void);
EAPI int evas_common_font_ascent_get (RGBA_Font *fn);
EAPI int evas_common_font_descent_get (RGBA_Font *fn);
EAPI int evas_common_font_max_ascent_get (RGBA_Font *fn);
EAPI int evas_common_font_max_descent_get (RGBA_Font *fn);
EAPI int evas_common_font_instance_ascent_get (RGBA_Font_Int *fi);
EAPI int evas_common_font_instance_descent_get (RGBA_Font_Int *fi);
EAPI int evas_common_font_instance_max_ascent_get (RGBA_Font_Int *fi);
EAPI int evas_common_font_instance_max_descent_get (RGBA_Font_Int *fi);
EAPI int evas_common_font_instance_underline_position_get (RGBA_Font_Int *fi);
EAPI int evas_common_font_instance_underline_thickness_get (RGBA_Font_Int *fi);
EAPI int evas_common_font_get_line_advance (RGBA_Font *fn);
void *evas_common_font_freetype_face_get(RGBA_Font *font); /* XXX: Not EAPI on purpose. Not ment to be used in modules. */
EAPI RGBA_Font_Glyph *evas_common_font_int_cache_glyph_get (RGBA_Font_Int *fi, FT_UInt index);
EAPI Eina_Bool evas_common_font_int_cache_glyph_render(RGBA_Font_Glyph *fg);
EAPI FT_UInt evas_common_get_char_index (RGBA_Font_Int* fi, Eina_Unicode gl, Eina_Unicode variation_sequence);
/* load */
EAPI void evas_common_font_dpi_set (int dpi_h, int dpi_v);
EAPI RGBA_Font_Source *evas_common_font_source_memory_load (const char *name, const void *data, int data_size);
EAPI RGBA_Font_Source *evas_common_font_source_load (const char *name);
EAPI int evas_common_font_source_load_complete (RGBA_Font_Source *fs);
EAPI RGBA_Font_Source *evas_common_font_source_find (const char *name);
EAPI void evas_common_font_source_free (RGBA_Font_Source *fs);
EAPI void evas_common_font_size_use (RGBA_Font *fn);
EAPI RGBA_Font_Int *evas_common_font_int_load (const char *name, int size, Font_Rend_Flags wanted_rend, Efl_Text_Font_Bitmap_Scalable bitmap_scalable);
EAPI RGBA_Font_Int *evas_common_font_int_load_init (RGBA_Font_Int *fn);
EAPI RGBA_Font_Int *evas_common_font_int_load_complete (RGBA_Font_Int *fi);
EAPI RGBA_Font *evas_common_font_memory_load (const char *source, const char *name, int size, const void *data, int data_size, Font_Rend_Flags wanted_rend, Efl_Text_Font_Bitmap_Scalable bitmap_scalable);
EAPI RGBA_Font *evas_common_font_load (const char *name, int size, Font_Rend_Flags wanted_rend, Efl_Text_Font_Bitmap_Scalable bitmap_scalable);
EAPI RGBA_Font *evas_common_font_add (RGBA_Font *fn, const char *name, int size, Font_Rend_Flags wanted_rend, Efl_Text_Font_Bitmap_Scalable bitmap_scalable);
EAPI RGBA_Font *evas_common_font_memory_add (RGBA_Font *fn, const char *source, const char *name, int size, const void *data, int data_size, Font_Rend_Flags wanted_rend, Efl_Text_Font_Bitmap_Scalable bitmap_scalable);
EAPI void evas_common_font_free (RGBA_Font *fn);
EAPI void evas_common_font_int_unref (RGBA_Font_Int *fi);
EAPI void evas_common_font_hinting_set (RGBA_Font *fn, Font_Hint_Flags hinting);
EAPI Eina_Bool evas_common_hinting_available (Font_Hint_Flags hinting);
EAPI RGBA_Font *evas_common_font_memory_hinting_load (const char *source, const char *name, int size, const void *data, int data_size, Font_Hint_Flags hinting, Font_Rend_Flags wanted_rend, Efl_Text_Font_Bitmap_Scalable bitmap_scalable);
EAPI RGBA_Font *evas_common_font_hinting_load (const char *name, int size, Font_Hint_Flags hinting, Font_Rend_Flags wanted_rend, Efl_Text_Font_Bitmap_Scalable bitmap_scalable);
EAPI RGBA_Font *evas_common_font_hinting_add (RGBA_Font *fn, const char *name, int size, Font_Hint_Flags hinting, Font_Rend_Flags wanted_rend, Efl_Text_Font_Bitmap_Scalable bitmap_scalable);
EAPI RGBA_Font *evas_common_font_memory_hinting_add (RGBA_Font *fn, const char *source, const char *name, int size, const void *data, int data_size, Font_Hint_Flags hinting, Font_Rend_Flags wanted_rend, Efl_Text_Font_Bitmap_Scalable bitmap_scalable);
EAPI void evas_common_font_int_modify_cache_by (RGBA_Font_Int *fi, int dir);
EAPI int evas_common_font_cache_get (void);
EAPI void evas_common_font_cache_set (int size);
EAPI void evas_common_font_flush (void);
EAPI void evas_common_font_flush_last (void);
EAPI RGBA_Font_Int *evas_common_font_int_find (const char *name, int size, Font_Rend_Flags wanted_rend, Efl_Text_Font_Bitmap_Scalable bitmap_scalable);
EAPI void evas_common_font_all_clear (void);
EAPI void evas_common_font_ext_clear (void);
/* query */
EAPI int evas_common_font_query_kerning (RGBA_Font_Int* fi, FT_UInt left, FT_UInt right, int* kerning);
EAPI void evas_common_font_query_size (RGBA_Font *fn, const Evas_Text_Props *intl_props, int *w, int *h);
EAPI int evas_common_font_query_inset (RGBA_Font *fn, const Evas_Text_Props *text_props);
EAPI int evas_common_font_query_right_inset (RGBA_Font *fn, const Evas_Text_Props *text_props);
EAPI void evas_common_font_query_advance (RGBA_Font *fn, const Evas_Text_Props *intl_props, int *h_adv, int *v_adv);
EAPI int evas_common_font_query_char_coords (RGBA_Font *fn, const Evas_Text_Props *intl_props, int pos, int *cx, int *cy, int *cw, int *ch);
EAPI int evas_common_font_query_pen_coords (RGBA_Font *fn, const Evas_Text_Props *intl_props, int pos, int *cpen_x, int *cy, int *cadv, int *ch);
EAPI int evas_common_font_query_char_at_coords (RGBA_Font *fn, const Evas_Text_Props *intl_props, int x, int y, int *cx, int *cy, int *cw, int *ch);
EAPI int evas_common_font_query_last_up_to_pos (RGBA_Font *fn, const Evas_Text_Props *intl_props, int x, int y, int width_offset);
EAPI int evas_common_font_query_run_font_end_get(RGBA_Font *fn, RGBA_Font_Int **script_fi, RGBA_Font_Int **cur_fi, Evas_Script_Type script, const Eina_Unicode *text, int run_len);
EAPI void evas_common_font_ascent_descent_get(RGBA_Font *fn, const Evas_Text_Props *text_props, int *ascent, int *descent);
EAPI void *evas_common_font_glyph_compress(void *data, int num_grays, int pixel_mode, int pitch_data, int w, int h, int *size_ret);
EAPI DATA8 *evas_common_font_glyph_uncompress(RGBA_Font_Glyph *fg, int *wret, int *hret);
EAPI int evas_common_font_glyph_search (RGBA_Font *fn, RGBA_Font_Int **fi_ret, Eina_Unicode gl, Eina_Unicode variation_sequence, uint32_t evas_font_search_options);
void evas_common_font_load_init(void);
void evas_common_font_load_shutdown(void);
void evas_font_dir_cache_free(void);
const char *evas_font_dir_cache_find(char *dir, char *font);
Eina_List *evas_font_dir_available_list(const Eina_List *font_paths);
void evas_font_dir_available_list_free(Eina_List *available);
void evas_font_free(void *font);
void evas_fonts_zero_free();
void evas_fonts_zero_pressure();
void evas_font_name_parse(Evas_Font_Description *fdesc, const char *name);
unsigned int evas_font_style_find(const char *start, const char *end, Evas_Font_Style style);
const char *evas_font_style_find_str(int type, Evas_Font_Style style);
Evas_Font_Description *evas_font_desc_new(void);
Evas_Font_Description *evas_font_desc_dup(const Evas_Font_Description *fdesc);
void evas_font_desc_unref(Evas_Font_Description *fdesc);
int evas_font_desc_cmp(const Evas_Font_Description *a, const Evas_Font_Description *b);
Evas_Font_Description *evas_font_desc_ref(Evas_Font_Description *fdesc);
const char *evas_font_lang_normalize(const char *lang);
void * evas_font_load(const Eina_List *font_paths, int hinting, Evas_Font_Description *fdesc, const char *source, Evas_Font_Size size, Efl_Text_Font_Bitmap_Scalable bitmap_scalable);
void evas_font_load_hinting_set(void *font, int hinting);
#undef EAPI
#define EAPI
#endif /* _EVAS_FONT_H */
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