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[cc65] / include / tgi / tgi-vectorfont.h
1 /*****************************************************************************/
2 /*                                                                           */
3 /*                             tgi-vectorfont.h                              */
4 /*                                                                           */
5 /*                        TGI vector font definitions                        */
6 /*                                                                           */
7 /*                                                                           */
8 /*                                                                           */
9 /* (C) 2009,      Ullrich von Bassewitz                                      */
10 /*                Roemerstrasse 52                                           */
11 /*                D-70794 Filderstadt                                        */
12 /* EMail:         uz@cc65.org                                                */
13 /*                                                                           */
14 /*                                                                           */
15 /* This software is provided 'as-is', without any expressed or implied       */
16 /* warranty.  In no event will the authors be held liable for any damages    */
17 /* arising from the use of this software.                                    */
18 /*                                                                           */
19 /* Permission is granted to anyone to use this software for any purpose,     */
20 /* including commercial applications, and to alter it and redistribute it    */
21 /* freely, subject to the following restrictions:                            */
22 /*                                                                           */
23 /* 1. The origin of this software must not be misrepresented; you must not   */
24 /*    claim that you wrote the original software. If you use this software   */
25 /*    in a product, an acknowledgment in the product documentation would be  */
26 /*    appreciated but is not required.                                       */
27 /* 2. Altered source versions must be plainly marked as such, and must not   */
28 /*    be misrepresented as being the original software.                      */
29 /* 3. This notice may not be removed or altered from any source              */
30 /*    distribution.                                                          */
31 /*                                                                           */
32 /*****************************************************************************/
33
34
35
36 #ifndef _TGI_VECTORFONT_H
37 #define _TGI_VECTORFONT_H
38
39
40
41 /*****************************************************************************/
42 /*                                   Data                                    */
43 /*****************************************************************************/
44
45
46
47 #define TGI_VF_FIRSTCHAR        0x20            /* First char in file */
48 #define TGI_VF_LASTCHAR         0x7E            /* Last char in file */
49 #define TGI_VF_CCOUNT           (TGI_VF_LASTCHAR - TGI_VF_FIRSTCHAR + 1)
50
51 #define TGI_VF_VERSION          0x00            /* File version number */
52
53 /* TCH file header */
54 typedef struct tgi_vectorfont_header tgi_vectorfont_header;
55 struct tgi_vectorfont_header {
56     unsigned char       magic[3];               /* "TCH" */
57     unsigned char       version;                /* Version number */
58     unsigned            size;                   /* Font data size */
59 };
60
61 /* Font data loaded directly from file */
62 struct tgi_vectorfont {
63     unsigned char       top;                    /* Height of char */
64     unsigned char       baseline;               /* Character baseline */
65     unsigned char       bottom;                 /* Descender */
66     unsigned char       widths[TGI_VF_CCOUNT];  /* Char widths */
67     unsigned char*      chars[TGI_VF_CCOUNT];   /* Pointer to character defs */
68     unsigned char       vec_ops[1];             /* Actually dynamic */
69 };
70
71
72
73 /*****************************************************************************/
74 /*                                   Code                                    */
75 /*****************************************************************************/
76
77
78
79 void __fastcall__ tgi_vectorchar (char C);
80 /* Draw one character of the vector font at the current graphics cursor
81 ** position using the current font magnification.
82 */
83
84
85
86 /* End of tgi-vectorfont.h */
87 #endif
88
89
90