source: libcaca/trunk/src/aafire.c @ 2105

Last change on this file since 2105 was 2105, checked in by Pascal Terjan, 12 years ago
  • Allow exiting cacafire using the window manager
  • Property svn:keywords set to Id
File size: 9.1 KB
Line 
1/*
2 *  cacafire      fire demo for libcaca
3 *  Copyright (c) 2003 Sam Hocevar <sam@zoy.org>
4 *                1998, 1999, 2001 Jan Hubicka <hubicka@freesoft.cz>
5 *                All Rights Reserved
6 *
7 *  $Id: aafire.c 2105 2007-12-01 15:51:20Z pterjan $
8 *
9 *  This program is free software; you can redistribute it and/or
10 *  modify it under the terms of the GNU Lesser General Public
11 *  License as published by the Free Software Foundation; either
12 *  version 2 of the License, or (at your option) any later version.
13 *
14 *  This program is distributed in the hope that it will be useful,
15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17 *  Lesser General Public License for more details.
18 *
19 *  You should have received a copy of the GNU Lesser General Public
20 *  License along with this program; if not, write to the Free Software
21 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
22 *  02111-1307  USA
23 */
24
25#ifdef LIBCACA
26#include "config.h"
27#include "common.h"
28#if !defined(__KERNEL__)
29#   include <stdio.h>
30#   include <stdlib.h>
31#   include <string.h>
32#endif
33#include "caca.h"
34#else
35#include <stdio.h>
36#include "aalib.h"
37
38#define XSIZ aa_imgwidth(context)
39#define YSIZ (aa_imgheight(context)-4)
40#endif
41#define MAXTABLE (256*5)
42#ifdef LIBCACA
43static cucul_canvas_t *cv;
44static caca_display_t *dp;
45static int XSIZ, YSIZ;
46static cucul_dither_t *cucul_dither;
47static char *bitmap;
48static int pause = 0;
49#else
50static aa_context *context;
51static aa_renderparams *params;
52static aa_palette palette;
53#endif
54static unsigned int table[MAXTABLE];
55#ifdef LIBCACA
56static int const pal[] =
57#else
58__AA_CONST static int pal[] =
59#endif
60{
61  0, 0, 0, 0, 0, 6, 0, 0, 6, 0, 0, 7, 0, 0, 8, 0, 0, 8, 0, 0, 9, 0, 0, 10,
622, 0, 10, 4, 0, 9, 6, 0, 9, 8, 0, 8, 10, 0, 7, 12, 0, 7, 14, 0, 6, 16, 0, 5,
63  18, 0, 5, 20, 0, 4, 22, 0, 4, 24, 0, 3, 26, 0, 2, 28, 0, 2, 30, 0, 1, 32, 0, 0,
64  32, 0, 0, 33, 0, 0, 34, 0, 0, 35, 0, 0, 36, 0, 0, 36, 0, 0, 37, 0, 0, 38, 0, 0,
65  39, 0, 0, 40, 0, 0, 40, 0, 0, 41, 0, 0, 42, 0, 0, 43, 0, 0, 44, 0, 0, 45, 0, 0,
66  46, 1, 0, 47, 1, 0, 48, 2, 0, 49, 2, 0, 50, 3, 0, 51, 3, 0, 52, 4, 0, 53, 4, 0,
67  54, 5, 0, 55, 5, 0, 56, 6, 0, 57, 6, 0, 58, 7, 0, 59, 7, 0, 60, 8, 0, 61, 8, 0,
68  63, 9, 0, 63, 9, 0, 63, 10, 0, 63, 10, 0, 63, 11, 0, 63, 11, 0, 63, 12, 0, 63, 12, 0,
69  63, 13, 0, 63, 13, 0, 63, 14, 0, 63, 14, 0, 63, 15, 0, 63, 15, 0, 63, 16, 0, 63, 16, 0,
70  63, 17, 0, 63, 17, 0, 63, 18, 0, 63, 18, 0, 63, 19, 0, 63, 19, 0, 63, 20, 0, 63, 20, 0,
71  63, 21, 0, 63, 21, 0, 63, 22, 0, 63, 22, 0, 63, 23, 0, 63, 24, 0, 63, 24, 0, 63, 25, 0,
72  63, 25, 0, 63, 26, 0, 63, 26, 0, 63, 27, 0, 63, 27, 0, 63, 28, 0, 63, 28, 0, 63, 29, 0,
73  63, 29, 0, 63, 30, 0, 63, 30, 0, 63, 31, 0, 63, 31, 0, 63, 32, 0, 63, 32, 0, 63, 33, 0,
74  63, 33, 0, 63, 34, 0, 63, 34, 0, 63, 35, 0, 63, 35, 0, 63, 36, 0, 63, 36, 0, 63, 37, 0,
75  63, 38, 0, 63, 38, 0, 63, 39, 0, 63, 39, 0, 63, 40, 0, 63, 40, 0, 63, 41, 0, 63, 41, 0,
76  63, 42, 0, 63, 42, 0, 63, 43, 0, 63, 43, 0, 63, 44, 0, 63, 44, 0, 63, 45, 0, 63, 45, 0,
77  63, 46, 0, 63, 46, 0, 63, 47, 0, 63, 47, 0, 63, 48, 0, 63, 48, 0, 63, 49, 0, 63, 49, 0,
78  63, 50, 0, 63, 50, 0, 63, 51, 0, 63, 52, 0, 63, 52, 0, 63, 52, 0, 63, 52, 0, 63, 52, 0,
79  63, 53, 0, 63, 53, 0, 63, 53, 0, 63, 53, 0, 63, 54, 0, 63, 54, 0, 63, 54, 0, 63, 54, 0,
80  63, 54, 0, 63, 55, 0, 63, 55, 0, 63, 55, 0, 63, 55, 0, 63, 56, 0, 63, 56, 0, 63, 56, 0,
81  63, 56, 0, 63, 57, 0, 63, 57, 0, 63, 57, 0, 63, 57, 0, 63, 57, 0, 63, 58, 0, 63, 58, 0,
82  63, 58, 0, 63, 58, 0, 63, 59, 0, 63, 59, 0, 63, 59, 0, 63, 59, 0, 63, 60, 0, 63, 60, 0,
83  63, 60, 0, 63, 60, 0, 63, 60, 0, 63, 61, 0, 63, 61, 0, 63, 61, 0, 63, 61, 0, 63, 62, 0,
84  63, 62, 0, 63, 62, 0, 63, 62, 0, 63, 63, 0, 63, 63, 1, 63, 63, 2, 63, 63, 3, 63, 63, 4,
85  63, 63, 5, 63, 63, 6, 63, 63, 7, 63, 63, 8, 63, 63, 9, 63, 63, 10, 63, 63, 10, 63, 63, 11,
86  63, 63, 12, 63, 63, 13, 63, 63, 14, 63, 63, 15, 63, 63, 16, 63, 63, 17, 63, 63, 18, 63, 63, 19,
87  63, 63, 20, 63, 63, 21, 63, 63, 21, 63, 63, 22, 63, 63, 23, 63, 63, 24, 63, 63, 25, 63, 63, 26,
88  63, 63, 27, 63, 63, 28, 63, 63, 29, 63, 63, 30, 63, 63, 31, 63, 63, 31, 63, 63, 32, 63, 63, 33,
89  63, 63, 34, 63, 63, 35, 63, 63, 36, 63, 63, 37, 63, 63, 38, 63, 63, 39, 63, 63, 40, 63, 63, 41,
90  63, 63, 42, 63, 63, 42, 63, 63, 43, 63, 63, 44, 63, 63, 45, 63, 63, 46, 63, 63, 47, 63, 63, 48,
91  63, 63, 49, 63, 63, 50, 63, 63, 51, 63, 63, 52, 63, 63, 52, 63, 63, 53, 63, 63, 54, 63, 63, 55,
92  63, 63, 56, 63, 63, 57, 63, 63, 58, 63, 63, 59, 63, 63, 60, 63, 63, 61, 63, 63, 62, 63, 63, 63};
93
94
95static void
96initialize (void)
97{
98  int i;
99#ifdef LIBCACA
100  unsigned int r[256], g[256], b[256], a[256];
101#endif
102
103#ifdef LIBCACA
104  cv = cucul_create_canvas(80, 32);
105  if (!cv)
106    {
107      printf ("Failed to initialize libcucul\n");
108      exit (1);
109    }
110  dp = caca_create_display(cv);
111  if (!dp)
112    {
113      printf ("Failed to initialize libcaca\n");
114      exit (1);
115    }
116  caca_set_display_time(dp, 10000);
117  XSIZ = cucul_get_canvas_width(cv) * 2;
118  YSIZ = cucul_get_canvas_height(cv) * 2 - 4;
119#else
120  context = aa_autoinit (&aa_defparams);
121  if (context == NULL)
122    {
123      printf ("Failed to initialize aalib\n");
124      exit (1);
125    }
126  aa_autoinitkbd (context, 0);
127  params = aa_getrenderparams ();
128#endif
129
130  for (i = 0; i < 256; i++)
131#ifdef LIBCACA
132  {
133    r[i] = pal[i * 3] * 64;
134    g[i] = pal[i * 3 + 1] * 64;
135    b[i] = pal[i * 3 + 2] * 64;
136    a[i] = 0xfff;
137  }
138#else
139    aa_setpalette (palette, i, pal[i * 3] * 4,
140                   pal[i * 3 + 1] * 4, pal[i * 3 + 2] * 4);
141#endif
142
143#ifdef LIBCACA
144  cucul_dither = cucul_create_dither(8, XSIZ, YSIZ - 2, XSIZ, 0, 0, 0, 0);
145  cucul_set_dither_palette(cucul_dither, r, g, b, a);
146  bitmap = malloc(4 * cucul_get_canvas_width(cv)
147                    * cucul_get_canvas_height(cv));
148  memset(bitmap, 0, 4 * cucul_get_canvas_width(cv)
149                      * cucul_get_canvas_height(cv));
150#else
151  aa_hidecursor (context);
152#endif
153}
154static void
155uninitialize (void)
156{
157#ifdef LIBCACA
158  caca_free_display(dp);
159  cucul_free_canvas(cv);
160#else
161  aa_close (context);
162#endif
163  exit (0);
164}
165static void
166gentable (void)
167{
168  unsigned int i, p2;
169  unsigned int minus = 800 / YSIZ;
170  if (minus == 0)
171    minus = 1;
172  for (i = 0; i < MAXTABLE; i++)
173    {
174      if (i > minus)
175        {
176          p2 = (i - minus) / 5;
177          table[i] = p2;
178        }
179      else
180        table[i] = 0;
181    }
182}
183
184#define MA 5
185static void
186firemain (void)
187{
188  register unsigned int i;
189  unsigned char *p;
190#ifndef LIBCACA
191  char *bitmap = aa_image (context);
192#endif
193  i = 0;
194#define END (bitmap + XSIZ * YSIZ)
195  for (p = (unsigned char*)bitmap;
196       (char*)p <= (( char *) (END));
197       p += 1)
198    {
199      *p = table[(*(p + XSIZ - 1) + *(p + XSIZ + 1) + *(p + XSIZ)) +
200                 (*(p + 2 * XSIZ - 1) + *(p + 2 * XSIZ + 1))];
201    }
202}
203
204#define min(x,y) ((x)<(y)?(x):(y))
205static void
206drawfire (void)
207{
208  unsigned int i, last1, i1, i2;
209  static int loop = 0, sloop = 0;
210  static unsigned int height = 0;
211  register unsigned char *p;
212#ifndef LIBCACA
213  char *bitmap = aa_image (context);
214#else
215  if(pause)
216    goto paused;
217#endif
218
219  height++;
220  loop--;
221  if (loop < 0)
222    loop = rand () % 3, sloop++;;
223  i1 = 1;
224  i2 = 4 * XSIZ + 1;
225  for (p = (unsigned char *) bitmap + XSIZ * (YSIZ + 0);
226       p < ((unsigned char *) bitmap + XSIZ * (YSIZ + 1));
227       p++, i1 += 4, i2 -= 4)
228    {
229      last1 = rand () % min (i1, min (i2, height));
230      i = rand () % 6;
231      for (; p < (unsigned char *) bitmap + XSIZ * (YSIZ + 1) && i != 0;
232           p++, i--, i1 += 4, i2 -= 4)
233        *p = last1, last1 += rand () % 6 - 2, *(p + XSIZ) = last1, last1 +=
234          rand () % 6 - 2;
235      *(p + 2 * XSIZ) = last1, last1 += rand () % 6 - 2;
236    }
237  i = 0;
238  firemain ();
239#ifdef LIBCACA
240paused:
241  cucul_dither_bitmap(cv, 0, 0, cucul_get_canvas_width(cv),
242                      cucul_get_canvas_height(cv), cucul_dither, bitmap);
243  cucul_set_color_ansi(cv, CUCUL_WHITE, CUCUL_BLUE);
244  if (sloop < 100)
245    cucul_put_str(cv, cucul_get_canvas_width(cv) - 30,
246                  cucul_get_canvas_height(cv) - 2,
247                  " -=[ Powered by libcaca ]=- ");
248 
249  caca_refresh_display(dp);
250  /*XSIZ = caca_get_width() * 2;
251  YSIZ = caca_get_height() * 2 - 4;*/
252#else
253  aa_renderpalette (context, palette, params, 0, 0, aa_scrwidth (context),
254                    aa_scrheight (context));
255  aa_flush (context);
256#endif
257}
258static void
259game (void)
260{
261#ifndef LIBCACA
262  int event;
263#endif
264  gentable ();
265#ifdef LIBCACA
266  for(;;)
267#else
268  while (!(event = aa_getevent (context, 0)) || event == AA_RESIZE)
269#endif
270    {
271#ifdef LIBCACA
272      caca_event_t ev;
273      if(caca_get_event(dp, CACA_EVENT_KEY_PRESS|CACA_EVENT_QUIT, &ev, 0))
274        {
275          if (caca_get_event_type(&ev) & CACA_EVENT_QUIT)
276            return;
277          switch(caca_get_event_key_ch(&ev))
278            {
279                case CACA_KEY_CTRL_C:
280                case CACA_KEY_CTRL_Z:
281                case CACA_KEY_ESCAPE: return;
282                case ' ': pause = !pause;
283            }
284        }
285#endif
286      drawfire ();
287    }
288}
289int
290main (int argc, char **argv)
291{
292#ifndef LIBCACA
293  if (!aa_parseoptions (NULL, NULL, &argc, argv) || argc != 1)
294    {
295      printf ("%s", aa_help);
296      exit (1);
297    }
298#endif
299  initialize ();
300#ifndef LIBCACA
301  aa_resizehandler (context, (void *) aa_resize);
302#endif
303  game ();
304  uninitialize ();
305  return 1;
306}
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