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

Last change on this file since 2821 was 2821, checked in by sam, 6 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: 1.5 KB
Line 
1/*
2 *  hsv           libcaca HSV rendering test program
3 *  Copyright (c) 2003 Sam Hocevar <sam@zoy.org>
4 *                All Rights Reserved
5 *
6 *  $Id$
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#endif
20
21#include "caca.h"
22
23uint32_t buffer[256*256];
24
25int main(int argc, char *argv[])
26{
27    caca_display_t *dp;
28    caca_canvas_t *cv;
29
30    caca_dither_t *dither;
31    int x, y;
32
33    dp = caca_create_display(NULL);
34    if(dp == NULL)
35    {
36        printf("Can't create display\n");
37        return -1;
38    }
39
40    cv = caca_get_canvas(dp);
41
42    for(y = 0; y < 256; y++)
43        for(x = 0; x < 256; x++)
44    {
45        buffer[y * 256 + x] = ((y * x / 256) << 16) | ((y * x / 256) << 8) | (x<< 0);
46    }
47
48    dither = caca_create_dither(32, 256, 256, 4 * 256,
49                                 0x00ff0000, 0x0000ff00, 0x000000ff, 0x0);
50    caca_dither_bitmap(caca_get_canvas(dp), 0, 0, caca_get_canvas_width(cv),
51                        caca_get_canvas_height(cv), dither, buffer);
52    caca_free_dither(dither);
53
54    caca_refresh_display(dp);
55
56    caca_get_event(dp, CACA_EVENT_KEY_PRESS, NULL, -1);
57
58    caca_free_display(dp);
59
60    return 0;
61}
62
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