source: libcaca/trunk/examples/font2tga.c @ 2821

Last change on this file since 2821 was 2821, checked in by Sam Hocevar, 11 years ago

Starting refactoring to get rid of libcucul. The initial reason for the
split is rendered moot by the plugin system: when enabled, binaries do
not link directly with libX11 or libGL. I hope this is a step towards
more consisteny and clarity.

  • Property svn:keywords set to Id
File size: 2.0 KB
Line 
1/*
2 *  font2tga      libcaca font test program
3 *  Copyright (c) 2006 Sam Hocevar <sam@zoy.org>
4 *                All Rights Reserved
5 *
6 *  $Id: font2tga.c 2821 2008-09-27 13:12:46Z sam $
7 *
8 *  This program is free software. It comes without any warranty, to
9 *  the extent permitted by applicable law. You can redistribute it
10 *  and/or modify it under the terms of the Do What The Fuck You Want
11 *  To Public License, Version 2, as published by Sam Hocevar. See
12 *  http://sam.zoy.org/wtfpl/COPYING for more details.
13 */
14
15#include "config.h"
16
17#if !defined(__KERNEL__)
18#   include <stdio.h>
19#   include <stdlib.h>
20#endif
21
22#include "caca.h"
23
24int main(int argc, char *argv[])
25{
26    uint32_t const *blocks;
27    caca_font_t *f;
28    char const * const * fonts;
29    caca_canvas_t *cv;
30    void *buffer;
31    size_t len;
32    unsigned int i, j, x, y, cells, width;
33
34    fonts = caca_get_font_list();
35    f = caca_load_font(fonts[0], 0);
36    blocks = caca_get_font_blocks(f);
37
38    for(i = 0, cells = 0; blocks[i + 1]; i += 2)
39    {
40        cells += blocks[i + 1] - blocks[i];
41        for(j = blocks[i]; j < blocks[i + 1]; j++)
42            if(caca_utf32_is_fullwidth(j))
43                cells++;
44    }
45
46    for(width = 64; width * width < cells; width *= 2)
47        ;
48
49    /* Create a canvas */
50    cv = caca_create_canvas(width, (cells + width - 1) / (width - 1));
51    caca_set_color_ansi(cv, CACA_RED, CACA_RED);
52    caca_clear_canvas(cv);
53    caca_set_color_ansi(cv, CACA_BLACK, CACA_WHITE);
54
55    /* Put all glyphs on the canvas */
56    x = y = 0;
57
58    for(i = 0; blocks[i + 1]; i += 2)
59    {
60        for(j = blocks[i]; j < blocks[i + 1]; j++)
61        {
62            caca_put_char(cv, x, y, j);
63
64            if(caca_utf32_is_fullwidth(j))
65                ++x;
66
67            if(++x >= width - 1)
68            {
69                x = 0;
70                y++;
71            }
72        }
73    }
74
75    caca_free_font(f);
76
77    buffer = caca_export_memory(cv, "tga", &len);
78    fwrite(buffer, len, 1, stdout);
79    free(buffer);
80
81    /* Free everything */
82    caca_free_canvas(cv);
83
84    return 0;
85}
86
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