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7b416d42 GV |
1 | /* Definitions and header for handling BDF fonts on the Microsoft W32 API. |
2 | Copyright (C) 1999 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | /* Based heavily on code by H. Miyashita for Meadow (a descendant of | |
22 | MULE for W32). */ | |
23 | ||
4cc436ed JR |
24 | #ifndef EMACS_W32BDF_H |
25 | #define EMACS_W32BDF_H | |
7b416d42 GV |
26 | |
27 | #define BDF_FIRST_OFFSET_TABLE 0x200 | |
28 | #define BDF_SECOND_OFFSET_TABLE 0x80 | |
29 | #define BDF_SECOND_OFFSET(x) ((x) & 0x7f) | |
30 | #define BDF_FIRST_OFFSET(x) (((x) >> 8) | (((x) & 0x80) << 1)) | |
ebbf77ea JR |
31 | #define BDF_CODEPOINT_MAX (BDF_FIRST_OFFSET_TABLE * BDF_SECOND_OFFSET_TABLE) |
32 | #define BDF_CODEPOINT_RANGE_COVER_P(x) (((x) >= 0) && ((x) <= BDF_CODEPOINT_MAX)) | |
33 | ||
34 | #define BDF_FONT_CACHE_SIZE 3000 | |
35 | #define BDF_FONT_CLEAR_SIZE 600 | |
36 | ||
37 | /* | |
38 | GLYPH METRIC (# ... character's reference point) | |
39 | ^ | |
40 | y | (urx, ury) | |
41 | | ^ +----------------+ | |
42 | a | b| |character | <- font bounding Box | |
43 | x | b| | | | |
44 | i | h| | #(bbox, bboy) | | |
45 | s | v +----------------+ | |
46 | | (llx, lly) | |
47 | | <----------------> | |
48 | | bbw | |
49 | +-----------------------> | |
50 | origin x axis | |
51 | */ | |
52 | ||
7b416d42 | 53 | |
865203c3 | 54 | |
7b416d42 GV |
55 | /* Structure of glyph information of one character. */ |
56 | typedef struct | |
57 | { | |
58 | int dwidth; /* width in pixels */ | |
59 | int bbw, bbh, bbox, bboy; /* bounding box in pixels */ | |
865203c3 GV |
60 | } glyph_metric; |
61 | ||
62 | typedef struct | |
63 | { | |
64 | glyph_metric metric; | |
ebbf77ea JR |
65 | int row_byte_size; /* size in bytes occupied by one row of the bitmap */ |
66 | int bitmap_size; /* size in bytes of the following slots */ | |
7b416d42 GV |
67 | unsigned char *bitmap; /* */ |
68 | } glyph_struct; | |
69 | ||
865203c3 GV |
70 | typedef struct fchar *pfont_char; |
71 | ||
72 | typedef struct | |
73 | { | |
74 | glyph_metric metric; | |
75 | pfont_char psrc; | |
ebbf77ea JR |
76 | int row_byte_size; |
77 | int bitmap_size; | |
78 | unsigned char *pbmp; | |
865203c3 GV |
79 | } cache_bitmap; |
80 | ||
81 | typedef struct fchar | |
82 | { | |
83 | unsigned char *offset; | |
84 | cache_bitmap *pcbmp; | |
85 | } font_char; | |
86 | ||
7b416d42 GV |
87 | typedef struct |
88 | { | |
89 | char *filename; | |
90 | HANDLE hfile; | |
91 | HANDLE hfilemap; | |
92 | unsigned char *font; | |
93 | unsigned char *seeked; | |
94 | DWORD size; | |
865203c3 | 95 | font_char *chtbl[BDF_FIRST_OFFSET_TABLE]; |
7b416d42 GV |
96 | int llx, lly, urx, ury; /* Font bounding box */ |
97 | ||
98 | int yoffset; | |
99 | int relative_compose; | |
100 | int default_ascent; | |
865203c3 GV |
101 | |
102 | unsigned char *registry; | |
103 | unsigned char *encoding; | |
104 | unsigned char *slant; | |
105 | /* unsigned char *width; */ | |
106 | ||
7b416d42 GV |
107 | int width; |
108 | int height; | |
109 | int pixsz; | |
0e4c08e8 | 110 | int nchars; |
7b416d42 GV |
111 | } bdffont; |
112 | ||
7b416d42 GV |
113 | #define BDF_FILE_SIZE_MAX 256*1024*1024 /* 256Mb */ |
114 | #define BDF_FONT_FILE(font) (((bdffont*)(font))->filename) | |
115 | #define MAKELENDSHORT(c1, c2) (unsigned short)((c1) | ((c2) << 8)) | |
116 | ||
117 | bdffont *w32_init_bdf_font (char *filename); | |
118 | void w32_free_bdf_font (bdffont *fontp); | |
119 | int w32_get_bdf_glyph (bdffont *fontp, int index, int size, | |
120 | glyph_struct *glyph); | |
121 | int w32_BDF_TextOut (bdffont *fontp, HDC hdc, int left, | |
122 | int top, unsigned char *text, int dim, | |
123 | int bytelen, int fixed_pitch_size); | |
124 | int w32_BDF_to_x_font (char *file, char* xstr, int len); | |
125 | ||
4cc436ed | 126 | #endif /* EMACS_W32BDF_H */ |