source: libcaca/trunk/examples/aafire.c @ 527

Last change on this file since 527 was 527, checked in by Sam Hocevar, 14 years ago
  • All output plugins should now work again.
  • Renamed caca_refresh() into caca_display() which makes more sense.
  • Optimised gl_bgpal by directly storing floats instead of doing the conversion at runtime.
  • Handle resizing in cucul_set_size() and try to keep as much information as possible from the previous canvas.
  • Moved most global variables into cucul_t or caca_t contexts.
  • Moved time.c into libcaca.
  • Property svn:keywords set to Id
File size: 8.4 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 527 2006-03-06 08:32:40Z 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#include <stdio.h>
28#include <stdlib.h>
29#include <string.h>
30#include "caca.h"
31#else
32#include <stdio.h>
33#include "aalib.h"
34
35#define XSIZ aa_imgwidth(context)
36#define YSIZ (aa_imgheight(context)-4)
37#endif
38#define MAXTABLE (256*5)
39#ifdef LIBCACA
40static cucul_t *qq;
41static caca_t *kk;
42static int XSIZ, YSIZ;
43static struct cucul_bitmap *cucul_bitmap;
44static char *bitmap;
45static int pause = 0;
46#else
47static aa_context *context;
48static aa_renderparams *params;
49static aa_palette palette;
50#endif
51static unsigned int table[MAXTABLE];
52#ifdef LIBCACA
53static int const pal[] =
54#else
55__AA_CONST static int pal[] =
56#endif
57{
58  0, 0, 0, 0, 0, 6, 0, 0, 6, 0, 0, 7, 0, 0, 8, 0, 0, 8, 0, 0, 9, 0, 0, 10,
592, 0, 10, 4, 0, 9, 6, 0, 9, 8, 0, 8, 10, 0, 7, 12, 0, 7, 14, 0, 6, 16, 0, 5,
60  18, 0, 5, 20, 0, 4, 22, 0, 4, 24, 0, 3, 26, 0, 2, 28, 0, 2, 30, 0, 1, 32, 0, 0,
61  32, 0, 0, 33, 0, 0, 34, 0, 0, 35, 0, 0, 36, 0, 0, 36, 0, 0, 37, 0, 0, 38, 0, 0,
62  39, 0, 0, 40, 0, 0, 40, 0, 0, 41, 0, 0, 42, 0, 0, 43, 0, 0, 44, 0, 0, 45, 0, 0,
63  46, 1, 0, 47, 1, 0, 48, 2, 0, 49, 2, 0, 50, 3, 0, 51, 3, 0, 52, 4, 0, 53, 4, 0,
64  54, 5, 0, 55, 5, 0, 56, 6, 0, 57, 6, 0, 58, 7, 0, 59, 7, 0, 60, 8, 0, 61, 8, 0,
65  63, 9, 0, 63, 9, 0, 63, 10, 0, 63, 10, 0, 63, 11, 0, 63, 11, 0, 63, 12, 0, 63, 12, 0,
66  63, 13, 0, 63, 13, 0, 63, 14, 0, 63, 14, 0, 63, 15, 0, 63, 15, 0, 63, 16, 0, 63, 16, 0,
67  63, 17, 0, 63, 17, 0, 63, 18, 0, 63, 18, 0, 63, 19, 0, 63, 19, 0, 63, 20, 0, 63, 20, 0,
68  63, 21, 0, 63, 21, 0, 63, 22, 0, 63, 22, 0, 63, 23, 0, 63, 24, 0, 63, 24, 0, 63, 25, 0,
69  63, 25, 0, 63, 26, 0, 63, 26, 0, 63, 27, 0, 63, 27, 0, 63, 28, 0, 63, 28, 0, 63, 29, 0,
70  63, 29, 0, 63, 30, 0, 63, 30, 0, 63, 31, 0, 63, 31, 0, 63, 32, 0, 63, 32, 0, 63, 33, 0,
71  63, 33, 0, 63, 34, 0, 63, 34, 0, 63, 35, 0, 63, 35, 0, 63, 36, 0, 63, 36, 0, 63, 37, 0,
72  63, 38, 0, 63, 38, 0, 63, 39, 0, 63, 39, 0, 63, 40, 0, 63, 40, 0, 63, 41, 0, 63, 41, 0,
73  63, 42, 0, 63, 42, 0, 63, 43, 0, 63, 43, 0, 63, 44, 0, 63, 44, 0, 63, 45, 0, 63, 45, 0,
74  63, 46, 0, 63, 46, 0, 63, 47, 0, 63, 47, 0, 63, 48, 0, 63, 48, 0, 63, 49, 0, 63, 49, 0,
75  63, 50, 0, 63, 50, 0, 63, 51, 0, 63, 52, 0, 63, 52, 0, 63, 52, 0, 63, 52, 0, 63, 52, 0,
76  63, 53, 0, 63, 53, 0, 63, 53, 0, 63, 53, 0, 63, 54, 0, 63, 54, 0, 63, 54, 0, 63, 54, 0,
77  63, 54, 0, 63, 55, 0, 63, 55, 0, 63, 55, 0, 63, 55, 0, 63, 56, 0, 63, 56, 0, 63, 56, 0,
78  63, 56, 0, 63, 57, 0, 63, 57, 0, 63, 57, 0, 63, 57, 0, 63, 57, 0, 63, 58, 0, 63, 58, 0,
79  63, 58, 0, 63, 58, 0, 63, 59, 0, 63, 59, 0, 63, 59, 0, 63, 59, 0, 63, 60, 0, 63, 60, 0,
80  63, 60, 0, 63, 60, 0, 63, 60, 0, 63, 61, 0, 63, 61, 0, 63, 61, 0, 63, 61, 0, 63, 62, 0,
81  63, 62, 0, 63, 62, 0, 63, 62, 0, 63, 63, 0, 63, 63, 1, 63, 63, 2, 63, 63, 3, 63, 63, 4,
82  63, 63, 5, 63, 63, 6, 63, 63, 7, 63, 63, 8, 63, 63, 9, 63, 63, 10, 63, 63, 10, 63, 63, 11,
83  63, 63, 12, 63, 63, 13, 63, 63, 14, 63, 63, 15, 63, 63, 16, 63, 63, 17, 63, 63, 18, 63, 63, 19,
84  63, 63, 20, 63, 63, 21, 63, 63, 21, 63, 63, 22, 63, 63, 23, 63, 63, 24, 63, 63, 25, 63, 63, 26,
85  63, 63, 27, 63, 63, 28, 63, 63, 29, 63, 63, 30, 63, 63, 31, 63, 63, 31, 63, 63, 32, 63, 63, 33,
86  63, 63, 34, 63, 63, 35, 63, 63, 36, 63, 63, 37, 63, 63, 38, 63, 63, 39, 63, 63, 40, 63, 63, 41,
87  63, 63, 42, 63, 63, 42, 63, 63, 43, 63, 63, 44, 63, 63, 45, 63, 63, 46, 63, 63, 47, 63, 63, 48,
88  63, 63, 49, 63, 63, 50, 63, 63, 51, 63, 63, 52, 63, 63, 52, 63, 63, 53, 63, 63, 54, 63, 63, 55,
89  63, 63, 56, 63, 63, 57, 63, 63, 58, 63, 63, 59, 63, 63, 60, 63, 63, 61, 63, 63, 62, 63, 63, 63};
90
91
92static void
93initialize (void)
94{
95  int i;
96#ifdef LIBCACA
97  unsigned int r[256], g[256], b[256], a[256];
98#endif
99
100#ifdef LIBCACA
101  qq = cucul_init();
102  if (!qq)
103    {
104      printf ("Failed to initialize libcucul\n");
105      exit (1);
106    }
107  kk = caca_attach(qq);
108  if (!kk)
109    {
110      printf ("Failed to initialize libcaca\n");
111      exit (1);
112    }
113  caca_set_delay(kk, 10000);
114  XSIZ = cucul_get_width(qq) * 2;
115  YSIZ = cucul_get_height(qq) * 2 - 4;
116#else
117  context = aa_autoinit (&aa_defparams);
118  if (context == NULL)
119    {
120      printf ("Failed to initialize aalib\n");
121      exit (1);
122    }
123  aa_autoinitkbd (context, 0);
124  params = aa_getrenderparams ();
125#endif
126
127  for (i = 0; i < 256; i++)
128#ifdef LIBCACA
129  {
130    r[i] = pal[i * 3] * 64;
131    g[i] = pal[i * 3 + 1] * 64;
132    b[i] = pal[i * 3 + 2] * 64;
133    a[i] = 0xfff;
134  }
135#else
136    aa_setpalette (palette, i, pal[i * 3] * 4,
137                   pal[i * 3 + 1] * 4, pal[i * 3 + 2] * 4);
138#endif
139
140#ifdef LIBCACA
141  cucul_bitmap = cucul_create_bitmap(qq, 8, XSIZ, YSIZ - 2, XSIZ, 0, 0, 0, 0);
142  cucul_set_bitmap_palette(qq, cucul_bitmap, r, g, b, a);
143  bitmap = malloc(4 * cucul_get_width(qq) * cucul_get_height(qq) * sizeof(char));
144  memset(bitmap, 0, 4 * cucul_get_width(qq) * cucul_get_height(qq));
145#else
146  aa_hidecursor (context);
147#endif
148}
149static void
150uninitialize (void)
151{
152#ifdef LIBCACA
153  caca_detach(kk);
154  cucul_end(qq);
155#else
156  aa_close (context);
157#endif
158  exit (0);
159}
160static void
161gentable (void)
162{
163  unsigned int i, p2;
164  unsigned int minus = 800 / YSIZ;
165  if (minus == 0)
166    minus = 1;
167  for (i = 0; i < MAXTABLE; i++)
168    {
169      if (i > minus)
170        {
171          p2 = (i - minus) / 5;
172          table[i] = p2;
173        }
174      else
175        table[i] = 0;
176    }
177}
178
179#define MA 5
180static void
181firemain (void)
182{
183  register unsigned int i;
184  unsigned char *p;
185#ifndef LIBCACA
186  char *bitmap = aa_image (context);
187#endif
188  i = 0;
189#define END (bitmap + XSIZ * YSIZ)
190  for (p = (unsigned char*)bitmap;
191       (char*)p <= (( char *) (END));
192       p += 1)
193    {
194      *p = table[(*(p + XSIZ - 1) + *(p + XSIZ + 1) + *(p + XSIZ)) +
195                 (*(p + 2 * XSIZ - 1) + *(p + 2 * XSIZ + 1))];
196    }
197}
198
199#define min(x,y) ((x)<(y)?(x):(y))
200static void
201drawfire (void)
202{
203  unsigned int i, last1, i1, i2;
204  static int loop = 0, sloop = 0;
205  static unsigned int height = 0;
206  register unsigned char *p;
207#ifndef LIBCACA
208  char *bitmap = aa_image (context);
209#else
210  if(pause)
211    goto paused;
212#endif
213
214  height++;
215  loop--;
216  if (loop < 0)
217    loop = rand () % 3, sloop++;;
218  i1 = 1;
219  i2 = 4 * XSIZ + 1;
220  for (p = (unsigned char *) bitmap + XSIZ * (YSIZ + 0);
221       p < ((unsigned char *) bitmap + XSIZ * (YSIZ + 1));
222       p++, i1 += 4, i2 -= 4)
223    {
224      last1 = rand () % min (i1, min (i2, height));
225      i = rand () % 6;
226      for (; p < (unsigned char *) bitmap + XSIZ * (YSIZ + 1) && i != 0;
227           p++, i--, i1 += 4, i2 -= 4)
228        *p = last1, last1 += rand () % 6 - 2, *(p + XSIZ) = last1, last1 +=
229          rand () % 6 - 2;
230      *(p + 2 * XSIZ) = last1, last1 += rand () % 6 - 2;
231    }
232  i = 0;
233  firemain ();
234#ifdef LIBCACA
235paused:
236  cucul_draw_bitmap(qq, 0, 0,
237                    cucul_get_width(qq) - 1, cucul_get_height(qq) - 1,
238                    cucul_bitmap, bitmap);
239  caca_display(kk);
240  /*XSIZ = caca_get_width() * 2;
241  YSIZ = caca_get_height() * 2 - 4;*/
242#else
243  aa_renderpalette (context, palette, params, 0, 0, aa_scrwidth (context),
244                    aa_scrheight (context));
245  aa_flush (context);
246#endif
247}
248static void
249game (void)
250{
251#ifndef LIBCACA
252  int event;
253#endif
254  gentable ();
255#ifdef LIBCACA
256  for(;;)
257#else
258  while (!(event = aa_getevent (context, 0)) || event == AA_RESIZE)
259#endif
260    {
261#ifdef LIBCACA
262      switch (caca_get_event(kk, CACA_EVENT_KEY_PRESS))
263        {
264          case CACA_EVENT_KEY_PRESS | CACA_KEY_ESCAPE: return;
265          case CACA_EVENT_KEY_PRESS | ' ': pause = !pause;
266        }
267
268#endif
269      drawfire ();
270    }
271}
272int
273main (int argc, char **argv)
274{
275#ifndef LIBCACA
276  if (!aa_parseoptions (NULL, NULL, &argc, argv) || argc != 1)
277    {
278      printf ("%s", aa_help);
279      exit (1);
280    }
281#endif
282  initialize ();
283#ifndef LIBCACA
284  aa_resizehandler (context, (void *) aa_resize);
285#endif
286  game ();
287  uninitialize ();
288  return 1;
289}
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