1 /**************************************************************************
2  *
3  * Copyright 2013 Marek Olšák <maraeo@gmail.com>
4  * All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the
8  * "Software"), to deal in the Software without restriction, including
9  * without limitation the rights to use, copy, modify, merge, publish,
10  * distribute, sub license, and/or sell copies of the Software, and to
11  * permit persons to whom the Software is furnished to do so, subject to
12  * the following conditions:
13  *
14  * The above copyright notice and this permission notice (including the
15  * next paragraph) shall be included in all copies or substantial portions
16  * of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21  * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25  *
26  **************************************************************************/
27 
28 #ifndef FONT_H
29 #define FONT_H
30 
31 #include "pipe/p_compiler.h"
32 
33 struct pipe_resource;
34 struct pipe_context;
35 
36 enum util_font_name {
37    UTIL_FONT_FIXED_8X13
38 };
39 
40 /* The font is stored in a RECT texture. There are 256 glyphs
41  * drawn in a 16x16 matrix. The texture coordinates of a glyph
42  * within the matrix should be calculated as follows:
43  *
44  *    x1 = (glyph % 16) * glyph_width;
45  *    y1 = (glyph / 16) * glyph_height;
46  *    x2 = x1 + glyph_width;
47  *    y2 = y1 + glyph_height;
48  */
49 struct util_font {
50    struct pipe_resource *texture;
51    unsigned glyph_width;
52    unsigned glyph_height;
53 };
54 
55 boolean
56 util_font_create(struct pipe_context *pipe, enum util_font_name name,
57                          struct util_font *out_font);
58 
59 #endif
60