source: libcaca/trunk/examples/font.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: 3.0 KB
Line 
1/*
2 *  font          libcaca font test program
3 *  Copyright (c) 2006 Sam Hocevar <sam@zoy.org>
4 *                All Rights Reserved
5 *
6 *  $Id: font.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#   if defined(HAVE_ENDIAN_H)
19#      include <endian.h>
20#   endif
21
22#   include <stdio.h>
23#   include <stdlib.h>
24#   include <string.h>
25#endif
26
27#include "caca.h"
28
29int main(int argc, char *argv[])
30{
31    caca_canvas_t *cv;
32    caca_display_t *dp;
33    caca_font_t *f;
34    caca_dither_t *d;
35    uint8_t *buf;
36    unsigned int w, h;
37    char const * const * fonts;
38
39    /* Create a canvas */
40    cv = caca_create_canvas(8, 2);
41    if(cv == NULL)
42    {
43        printf("Can't create canvas\n");
44        return -1;
45    }
46
47
48    /* Draw stuff on our canvas */
49    caca_set_color_ansi(cv, CACA_WHITE, CACA_BLACK);
50    caca_put_str(cv, 0, 0, "ABcde");
51    caca_set_color_ansi(cv, CACA_LIGHTRED, CACA_BLACK);
52    caca_put_str(cv, 5, 0, "\\o/");
53    caca_set_color_ansi(cv, CACA_WHITE, CACA_BLUE);
54    caca_put_str(cv, 0, 1, "&$âøÿØ?!");
55
56    /* Load a libcaca internal font */
57    fonts = caca_get_font_list();
58    if(fonts[0] == NULL)
59    {
60        fprintf(stderr, "error: libcaca was compiled without any fonts\n");
61        return -1;
62    }
63    f = caca_load_font(fonts[0], 0);
64    if(f == NULL)
65    {
66        fprintf(stderr, "error: could not load font \"%s\"\n", fonts[0]);
67        return -1;
68    }
69
70    /* Create our bitmap buffer (32-bit ARGB) */
71    w = caca_get_canvas_width(cv) * caca_get_font_width(f);
72    h = caca_get_canvas_height(cv) * caca_get_font_height(f);
73    buf = malloc(4 * w * h);
74
75    /* Render the canvas onto our image buffer */
76    caca_render_canvas(cv, f, buf, w, h, 4 * w);
77
78    /* Just for fun, render the image using libcaca */
79    caca_set_canvas_size(cv, 80, 32);
80    dp = caca_create_display(cv);
81
82    {
83#if defined(HAVE_ENDIAN_H)
84        if(__BYTE_ORDER == __BIG_ENDIAN)
85#else
86        /* This is compile-time optimised with at least -O1 or -Os */
87        uint32_t const tmp = 0x12345678;
88        if(*(uint8_t const *)&tmp == 0x12)
89#endif
90            d = caca_create_dither(32, w, h, 4 * w,
91                                    0xff0000, 0xff00, 0xff, 0xff000000);
92        else
93            d = caca_create_dither(32, w, h, 4 * w,
94                                    0xff00, 0xff0000, 0xff000000, 0xff);
95    }
96
97    caca_dither_bitmap(cv, 0, 0, caca_get_canvas_width(cv),
98                                  caca_get_canvas_height(cv), d, buf);
99    caca_refresh_display(dp);
100
101    caca_get_event(dp, CACA_EVENT_KEY_PRESS, NULL, -1);
102
103    /* Free everything */
104    caca_free_display(dp);
105    free(buf);
106    caca_free_dither(d);
107    caca_free_font(f);
108    caca_free_canvas(cv);
109
110    return 0;
111}
112
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