-
Notifications
You must be signed in to change notification settings - Fork 11
/
egi_FTsymbol.h
180 lines (144 loc) · 7.29 KB
/
egi_FTsymbol.h
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
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
/*------------------------------------------------------------------
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.
Midas Zhou
知之者不如好之者好之者不如乐之者
-------------------------------------------------------------------*/
#ifndef __EGI_FTSYMBOL_H__
#define __EGI_FTSYMBOL_H__
#include "egi_symbol.h"
#include <freetype2/ft2build.h>
#include <freetype2/ftglyph.h>
#include <freetype2/ftadvanc.h>
#include <arpa/inet.h>
#include FT_FREETYPE_H
#ifdef __cplusplus
extern "C" {
#endif
//UTF-8 Encoded Character UCHAR
typedef unsigned char UFT8_CHAR; //NOT so correct!
typedef unsigned char * UFT8_PCHAR;
typedef wchar_t EGI_UNICODE;
typedef struct FTsymbol_library EGI_FONTS;
struct FTsymbol_library {
char ftname[256];
/*** www.freetype.org/freetype2/docs
* " In multi-threaded applications it is easiest to use one FT_Library
* object per thread, In case this is too cumbersome, a single FT_Library object
* across threads is possible also, as long as a mutex lock is used around FT_New_Face
* and FT_Done_Face. "
*/
FT_Library library; /* NOTE: typedef struct FT_LibraryRec_ *FT_Library */
pthread_mutex_t lib_mutex; /* NOW applys for sysfonts only, see FTsymbol_unicode_writeFB() */
// int refcnt....
/* Regular type */
FT_Face regular; /* NOTE: typedef struct FT_FaceRec_* FT_Face */
char *fpath_regular;
/* Light type */
FT_Face light;
char *fpath_light;
/* Regular type */
FT_Face bold;
char *fpath_bold;
/* Special type */
FT_Face special;
char *fpath_special;
/* Emoji */
FT_Face emojis; /* NOW applys for sysfonts only! */
char *fpath_emojis;
};
/* EGI_FONT_BUFFER: To buffer frequently used wchars. TODO: To compare with FreeType cache manager.
* Note:
* 1. Cross check with FTsymbol_save_fontBuffer().
*/
/* font glyph data */
typedef struct wchar_glyph_data EGI_WCHAR_GLYPH;
struct wchar_glyph_data {
int symheight; /* as per slot->bitmap.rows, font height in pixels is bigger than bitmap.rows! */
int ftwidth; /* as per slot->bitmap.width, ftwidth <= (slot->advance.x>>6) */
int advanceX; /* as per advanceX = slot->advance.x>>6, OR self cooked width. */
/* bitmap position relative to boundary box */
int delX; /* = slot->bitmap_left; */
int delY; /* = -slot->bitmap_top + fh */
unsigned char *alpha; /* ALPHA as per slot->bitmap.buffer, symheight*ftwidth pixels */
// EGI_16BIT_COLOR *color; /* COLOR as per slot->bitmap.buffer, symheight*ftwidth pixels. For EMOJIs etc. */
}; /* index 0 --> unistart, 1 --> unistart+1, ... size-1 --> unistart+size-1 */
#define FONTBUFFER_MAGIC_WORDS "EGI_FONTBUFF0000" /* 12+4(Ver)=16bytes, font buffer data file magic words */
typedef struct FTsymbol_font_buffer EGI_FONT_BUFFER;
struct FTsymbol_font_buffer {
FT_Face face; /* A face object in FreeType2 library, MUST be a ref. to an already loaded facetype in sys EGI_FONTS */
#define EGI_FONTBUFF_NAME_MAX 64
char family_name[EGI_FONTBUFF_NAME_MAX]; /* Including EOF/terminating NULL
* like `Times New Roman', `Bodoni', `Garamond', etc
*/
char style_name[EGI_FONTBUFF_NAME_MAX]; /* Including EOF/terminating NULL
* Like 'Regular', 'Bold'.. etc.
*/
int fw; /* Font size */
int fh;
/* TODO: lookup scatter/hash table */
wchar_t unistart; /* Start of wcode/unicode. */
int size; /* Fontdata size, as of fontdata[], total number of wchars buffered, with glyphs/data */
/* Font glyph data */
EGI_WCHAR_GLYPH *fontdata; /* index 0 --> unistart, 1 --> unistart+1, ... size-1 --> unistart+size-1 */
};
EGI_FONT_BUFFER* FTsymbol_create_fontBuffer(FT_Face face, int fw, int fh, wchar_t unistart, size_t size);
void FTsymbol_free_fontBuffer(EGI_FONT_BUFFER **fontbuff);
int FTsymbol_save_fontBuffer(const EGI_FONT_BUFFER *fontbuff, const char *fpath);
EGI_FONT_BUFFER* FTsymbol_load_fontBuffer(const char *fpath);
bool FTsymbol_glyph_buffered(FT_Face face, int fsize, wchar_t wcode);
/* EGI fonts */
extern EGI_SYMPAGE sympg_ascii; /* default font LiberationMono-Regular */
extern EGI_FONTS egi_sysfonts; /* System font set */
extern EGI_FONTS egi_sysemojis; /* System Emojis set ---NOPE--- */
extern EGI_FONTS egi_appfonts; /* APP font set */
extern EGI_FONT_BUFFER *egi_fontbuffer; /* TODO: NOW only with one face and one size
* ReadONLY, NO mutex lock applied!
*/
void FTsymbol_set_TabWidth( float factor);
void FTsymbol_set_SpaceWidth( float factor);
void FTsymbol_enable_SplitWord(void);
void FTsymbol_disable_SplitWord(void);
bool FTsymbol_status_SplitWord(void);
int FTsymbol_load_library( EGI_FONTS *symlib );
FT_Face FTsymbol_create_newFace( EGI_FONTS *symlib, const char *ftpath);
void FTsymbol_release_library( EGI_FONTS *symlib );
int FTsymbol_load_allpages(void);
void FTsymbol_release_allpages(void);
int FTsymbol_load_sysfonts(void);
int FTsymbol_load_sysemojis(void);
int FTsymbol_load_appfonts(void);
void FTsymbol_release_allfonts(void);
int FTsymbol_load_asciis_from_fontfile( EGI_SYMPAGE *symfont_page, const char *font_path, int Wp, int Hp );
int FTsymbol_get_symheight(FT_Face face, const unsigned char *pstr, int fw, int fh );
int FTsymbol_get_FTface_Height(FT_Face face, int fw, int fh);
int FTsymbol_uft8string_getAdvances(FT_Face face, int fw, int fh, const unsigned char *ptr); /* Need check and test */
int FTsymbol_cooked_charWidth(wchar_t wcode, int fw);
void FTsymbol_unicode_print(wchar_t wcode);
void FTsymbol_unicode_writeFB(FBDEV *fb_dev, FT_Face face, int fw, int fh, wchar_t wcode, int *xleft, /* SYSFONTS lib_mutex */
int x0, int y0, int fontcolor, int transpcolor,int opaque);
int FTsymbol_unicstrings_writeFB( FBDEV *fb_dev, FT_Face face, int fw, int fh, const wchar_t *pwchar,
unsigned int pixpl, unsigned int lines, unsigned int gap,
int x0, int y0,
int fontcolor, int transpcolor, int opaque );
int FTsymbol_uft8strings_writeFB( FBDEV *fb_dev, FT_Face face, int fw, int fh, const unsigned char *pstr,
unsigned int pixpl, unsigned int lines, unsigned int gap,
int x0, int y0,
int fontcolor, int transpcolor, int opaque,
int *cnt, int *lnleft, int* penx, int* peny );
int FTsymbol_uft8strings_writeIMG( EGI_IMGBUF *imgbuf, FT_Face face, int fw, int fh, const unsigned char *pstr,
unsigned int pixpl, unsigned int lines, unsigned int gap,
int x0, int y0,
int fontcolor, int transpcolor, int opaque,
int *cnt, int *lnleft, int* penx, int* peny );
int FTsymbol_uft8strings_writeIMG2( EGI_IMGBUF *imgbuf, FT_Face face, int fw, int fh, const unsigned char *pstr,
unsigned int pixpl, unsigned int lines, unsigned int gap,
int x0, int y0, int angle, int fontcolor,
int *cnt, int *lnleft, int* penx, int* peny );
int FTsymbol_uft8strings_pixlen( FT_Face face, int fw, int fh, const unsigned char *pstr); /* FTsymbol_uft8string_getAdvances() will call it.*/
int FTsymbol_eword_pixlen( FT_Face face, int fw, int fh, const unsigned char *pword);
#ifdef __cplusplus
}
#endif
#endif