source: libcaca/trunk/src/aafire.c @ 4330

Last change on this file since 4330 was 3582, checked in by Sam Hocevar, 10 years ago

Coding style: remove tabs and trailing spaces.

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File size: 9.1 KB
Line 
1/*
2 *  cacafire      fire demo for libcaca
3 *  Copyright (c) 2003 Sam Hocevar <sam@hocevar.net>
4 *                1998, 1999, 2001 Jan Hubicka <hubicka@freesoft.cz>
5 *                All Rights Reserved
6 *
7 *  $Id: aafire.c 3582 2009-07-26 19:17:28Z sam $
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#if !defined(__KERNEL__)
28#   include <stdio.h>
29#   include <stdlib.h>
30#   include <string.h>
31#endif
32#include "caca.h"
33#else
34#include <stdio.h>
35#include "aalib.h"
36
37#define XSIZ aa_imgwidth(context)
38#define YSIZ (aa_imgheight(context)-4)
39#endif
40#define MAXTABLE (256*5)
41#ifdef LIBCACA
42static caca_canvas_t *cv;
43static caca_display_t *dp;
44static int XSIZ, YSIZ;
45static caca_dither_t *caca_dither;
46static char *bitmap;
47static int paused = 0;
48#else
49static aa_context *context;
50static aa_renderparams *params;
51static aa_palette palette;
52#endif
53static unsigned int table[MAXTABLE];
54#ifdef LIBCACA
55static int const pal[] =
56#else
57__AA_CONST static int pal[] =
58#endif
59{
60  0, 0, 0, 0, 0, 6, 0, 0, 6, 0, 0, 7, 0, 0, 8, 0, 0, 8, 0, 0, 9, 0, 0, 10,
612, 0, 10, 4, 0, 9, 6, 0, 9, 8, 0, 8, 10, 0, 7, 12, 0, 7, 14, 0, 6, 16, 0, 5,
62  18, 0, 5, 20, 0, 4, 22, 0, 4, 24, 0, 3, 26, 0, 2, 28, 0, 2, 30, 0, 1, 32, 0, 0,
63  32, 0, 0, 33, 0, 0, 34, 0, 0, 35, 0, 0, 36, 0, 0, 36, 0, 0, 37, 0, 0, 38, 0, 0,
64  39, 0, 0, 40, 0, 0, 40, 0, 0, 41, 0, 0, 42, 0, 0, 43, 0, 0, 44, 0, 0, 45, 0, 0,
65  46, 1, 0, 47, 1, 0, 48, 2, 0, 49, 2, 0, 50, 3, 0, 51, 3, 0, 52, 4, 0, 53, 4, 0,
66  54, 5, 0, 55, 5, 0, 56, 6, 0, 57, 6, 0, 58, 7, 0, 59, 7, 0, 60, 8, 0, 61, 8, 0,
67  63, 9, 0, 63, 9, 0, 63, 10, 0, 63, 10, 0, 63, 11, 0, 63, 11, 0, 63, 12, 0, 63, 12, 0,
68  63, 13, 0, 63, 13, 0, 63, 14, 0, 63, 14, 0, 63, 15, 0, 63, 15, 0, 63, 16, 0, 63, 16, 0,
69  63, 17, 0, 63, 17, 0, 63, 18, 0, 63, 18, 0, 63, 19, 0, 63, 19, 0, 63, 20, 0, 63, 20, 0,
70  63, 21, 0, 63, 21, 0, 63, 22, 0, 63, 22, 0, 63, 23, 0, 63, 24, 0, 63, 24, 0, 63, 25, 0,
71  63, 25, 0, 63, 26, 0, 63, 26, 0, 63, 27, 0, 63, 27, 0, 63, 28, 0, 63, 28, 0, 63, 29, 0,
72  63, 29, 0, 63, 30, 0, 63, 30, 0, 63, 31, 0, 63, 31, 0, 63, 32, 0, 63, 32, 0, 63, 33, 0,
73  63, 33, 0, 63, 34, 0, 63, 34, 0, 63, 35, 0, 63, 35, 0, 63, 36, 0, 63, 36, 0, 63, 37, 0,
74  63, 38, 0, 63, 38, 0, 63, 39, 0, 63, 39, 0, 63, 40, 0, 63, 40, 0, 63, 41, 0, 63, 41, 0,
75  63, 42, 0, 63, 42, 0, 63, 43, 0, 63, 43, 0, 63, 44, 0, 63, 44, 0, 63, 45, 0, 63, 45, 0,
76  63, 46, 0, 63, 46, 0, 63, 47, 0, 63, 47, 0, 63, 48, 0, 63, 48, 0, 63, 49, 0, 63, 49, 0,
77  63, 50, 0, 63, 50, 0, 63, 51, 0, 63, 52, 0, 63, 52, 0, 63, 52, 0, 63, 52, 0, 63, 52, 0,
78  63, 53, 0, 63, 53, 0, 63, 53, 0, 63, 53, 0, 63, 54, 0, 63, 54, 0, 63, 54, 0, 63, 54, 0,
79  63, 54, 0, 63, 55, 0, 63, 55, 0, 63, 55, 0, 63, 55, 0, 63, 56, 0, 63, 56, 0, 63, 56, 0,
80  63, 56, 0, 63, 57, 0, 63, 57, 0, 63, 57, 0, 63, 57, 0, 63, 57, 0, 63, 58, 0, 63, 58, 0,
81  63, 58, 0, 63, 58, 0, 63, 59, 0, 63, 59, 0, 63, 59, 0, 63, 59, 0, 63, 60, 0, 63, 60, 0,
82  63, 60, 0, 63, 60, 0, 63, 60, 0, 63, 61, 0, 63, 61, 0, 63, 61, 0, 63, 61, 0, 63, 62, 0,
83  63, 62, 0, 63, 62, 0, 63, 62, 0, 63, 63, 0, 63, 63, 1, 63, 63, 2, 63, 63, 3, 63, 63, 4,
84  63, 63, 5, 63, 63, 6, 63, 63, 7, 63, 63, 8, 63, 63, 9, 63, 63, 10, 63, 63, 10, 63, 63, 11,
85  63, 63, 12, 63, 63, 13, 63, 63, 14, 63, 63, 15, 63, 63, 16, 63, 63, 17, 63, 63, 18, 63, 63, 19,
86  63, 63, 20, 63, 63, 21, 63, 63, 21, 63, 63, 22, 63, 63, 23, 63, 63, 24, 63, 63, 25, 63, 63, 26,
87  63, 63, 27, 63, 63, 28, 63, 63, 29, 63, 63, 30, 63, 63, 31, 63, 63, 31, 63, 63, 32, 63, 63, 33,
88  63, 63, 34, 63, 63, 35, 63, 63, 36, 63, 63, 37, 63, 63, 38, 63, 63, 39, 63, 63, 40, 63, 63, 41,
89  63, 63, 42, 63, 63, 42, 63, 63, 43, 63, 63, 44, 63, 63, 45, 63, 63, 46, 63, 63, 47, 63, 63, 48,
90  63, 63, 49, 63, 63, 50, 63, 63, 51, 63, 63, 52, 63, 63, 52, 63, 63, 53, 63, 63, 54, 63, 63, 55,
91  63, 63, 56, 63, 63, 57, 63, 63, 58, 63, 63, 59, 63, 63, 60, 63, 63, 61, 63, 63, 62, 63, 63, 63};
92
93
94static void
95initialize (void)
96{
97  int i;
98#ifdef LIBCACA
99  uint32_t r[256], g[256], b[256], a[256];
100#endif
101
102#ifdef LIBCACA
103  cv = caca_create_canvas(80, 32);
104  if (!cv)
105    {
106      printf ("Failed to initialize libcaca\n");
107      exit (1);
108    }
109  dp = caca_create_display(cv);
110  if (!dp)
111    {
112      printf ("Failed to initialize libcaca\n");
113      exit (1);
114    }
115  caca_set_display_time(dp, 10000);
116  XSIZ = caca_get_canvas_width(cv) * 2;
117  YSIZ = caca_get_canvas_height(cv) * 2 - 4;
118#else
119  context = aa_autoinit (&aa_defparams);
120  if (context == NULL)
121    {
122      printf ("Failed to initialize aalib\n");
123      exit (1);
124    }
125  aa_autoinitkbd (context, 0);
126  params = aa_getrenderparams ();
127#endif
128
129  for (i = 0; i < 256; i++)
130#ifdef LIBCACA
131  {
132    r[i] = pal[i * 3] * 64;
133    g[i] = pal[i * 3 + 1] * 64;
134    b[i] = pal[i * 3 + 2] * 64;
135    a[i] = 0xfff;
136  }
137#else
138    aa_setpalette (palette, i, pal[i * 3] * 4,
139                   pal[i * 3 + 1] * 4, pal[i * 3 + 2] * 4);
140#endif
141
142#ifdef LIBCACA
143  caca_dither = caca_create_dither(8, XSIZ, YSIZ - 2, XSIZ, 0, 0, 0, 0);
144  caca_set_dither_palette(caca_dither, r, g, b, a);
145  bitmap = malloc(4 * caca_get_canvas_width(cv)
146                    * caca_get_canvas_height(cv));
147  memset(bitmap, 0, 4 * caca_get_canvas_width(cv)
148                      * caca_get_canvas_height(cv));
149#else
150  aa_hidecursor (context);
151#endif
152}
153static void
154uninitialize (void)
155{
156#ifdef LIBCACA
157  caca_free_display(dp);
158  caca_free_canvas(cv);
159#else
160  aa_close (context);
161#endif
162  exit (0);
163}
164static void
165gentable (void)
166{
167  unsigned int i, p2;
168  unsigned int minus = 800 / YSIZ;
169  if (minus == 0)
170    minus = 1;
171  for (i = 0; i < MAXTABLE; i++)
172    {
173      if (i > minus)
174        {
175          p2 = (i - minus) / 5;
176          table[i] = p2;
177        }
178      else
179        table[i] = 0;
180    }
181}
182
183#define MA 5
184static void
185firemain (void)
186{
187  register unsigned int i;
188  unsigned char *p;
189#ifndef LIBCACA
190  char *bitmap = aa_image (context);
191#endif
192  i = 0;
193#define END (bitmap + XSIZ * YSIZ)
194  for (p = (unsigned char*)bitmap;
195       (char*)p <= (( char *) (END));
196       p += 1)
197    {
198      *p = table[(*(p + XSIZ - 1) + *(p + XSIZ + 1) + *(p + XSIZ)) +
199                 (*(p + 2 * XSIZ - 1) + *(p + 2 * XSIZ + 1))];
200    }
201}
202
203#define min(x,y) ((x)<(y)?(x):(y))
204static void
205drawfire (void)
206{
207  unsigned int i, last1, i1, i2;
208  static int loop = 0, sloop = 0;
209  static unsigned int height = 0;
210  register unsigned char *p;
211#ifndef LIBCACA
212  char *bitmap = aa_image (context);
213#else
214  if(paused)
215    goto _paused;
216#endif
217
218  height++;
219  loop--;
220  if (loop < 0)
221    loop = rand () % 3, sloop++;;
222  i1 = 1;
223  i2 = 4 * XSIZ + 1;
224  for (p = (unsigned char *) bitmap + XSIZ * (YSIZ + 0);
225       p < ((unsigned char *) bitmap + XSIZ * (YSIZ + 1));
226       p++, i1 += 4, i2 -= 4)
227    {
228      last1 = rand () % min (i1, min (i2, height));
229      i = rand () % 6;
230      for (; p < (unsigned char *) bitmap + XSIZ * (YSIZ + 1) && i != 0;
231           p++, i--, i1 += 4, i2 -= 4)
232        *p = last1, last1 += rand () % 6 - 2, *(p + XSIZ) = last1, last1 +=
233          rand () % 6 - 2;
234      *(p + 2 * XSIZ) = last1, last1 += rand () % 6 - 2;
235    }
236  i = 0;
237  firemain ();
238#ifdef LIBCACA
239_paused:
240  caca_dither_bitmap(cv, 0, 0, caca_get_canvas_width(cv),
241                      caca_get_canvas_height(cv), caca_dither, bitmap);
242  caca_set_color_ansi(cv, CACA_WHITE, CACA_BLUE);
243  if (sloop < 100)
244    caca_put_str(cv, caca_get_canvas_width(cv) - 30,
245                  caca_get_canvas_height(cv) - 2,
246                  " -=[ Powered by libcaca ]=- ");
247
248  caca_refresh_display(dp);
249  /*XSIZ = caca_get_width() * 2;
250  YSIZ = caca_get_height() * 2 - 4;*/
251#else
252  aa_renderpalette (context, palette, params, 0, 0, aa_scrwidth (context),
253                    aa_scrheight (context));
254  aa_flush (context);
255#endif
256}
257static void
258game (void)
259{
260#ifndef LIBCACA
261  int event;
262#endif
263  gentable ();
264#ifdef LIBCACA
265  for(;;)
266#else
267  while (!(event = aa_getevent (context, 0)) || event == AA_RESIZE)
268#endif
269    {
270#ifdef LIBCACA
271      caca_event_t ev;
272      if(caca_get_event(dp, CACA_EVENT_KEY_PRESS|CACA_EVENT_QUIT, &ev, 0))
273        {
274          if (caca_get_event_type(&ev) & CACA_EVENT_QUIT)
275            return;
276          switch(caca_get_event_key_ch(&ev))
277            {
278                case CACA_KEY_CTRL_C:
279                case CACA_KEY_CTRL_Z:
280                case CACA_KEY_ESCAPE: return;
281                case ' ': paused = !paused;
282            }
283        }
284#endif
285      drawfire ();
286    }
287}
288int
289main (int argc, char **argv)
290{
291#ifndef LIBCACA
292  if (!aa_parseoptions (NULL, NULL, &argc, argv) || argc != 1)
293    {
294      printf ("%s", aa_help);
295      exit (1);
296    }
297#endif
298  initialize ();
299#ifndef LIBCACA
300  aa_resizehandler (context, (void *) aa_resize);
301#endif
302  game ();
303  uninitialize ();
304  return 1;
305}
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