source: libcaca/trunk/examples/swallow.c @ 2299

Last change on this file since 2299 was 2299, checked in by Sam Hocevar, 12 years ago
  • Remove #include <stdint.h> etc. from "common.h". Instead, make sure that <cucul.h> will provide the C99 types, even if libcaca has been installed.
  • Rename what's left of "common.h" to "stubs.h".
  • Remove all references to erroneous <inttypes.h> from source files.
  • Property svn:keywords set to Id
File size: 3.1 KB
Line 
1/*
2 *  swallow       swallow another libcaca application
3 *  Copyright (c) 2006 Sam Hocevar <sam@zoy.org>
4 *                All Rights Reserved
5 *
6 *  $Id: swallow.c 2299 2008-04-19 12:42:50Z 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#   include <stdio.h>
19#   include <string.h>
20#   include <stdlib.h>
21#endif
22
23#include "cucul.h"
24#include "caca.h"
25
26int main(int argc, char **argv)
27{
28    char cmd[BUFSIZ];
29    static cucul_canvas_t *cv, *app;
30    static caca_display_t *dp;
31    unsigned char *buf[4];
32    long int bytes[4], total[4];
33    FILE *f[4];
34    int w, h, i;
35
36    if(argc < 5)
37    {
38        fprintf(stderr, "usage: %s <cmd1> <cmd2> <cmd3> <cmd4>\n", argv[0]);
39        return 1;
40    }
41
42    cv = cucul_create_canvas(0, 0);
43    app = cucul_create_canvas(0, 0);
44    dp = caca_create_display(cv);
45
46    if(cv == NULL || app == NULL )
47    {
48        printf("Can't created canvas\n");
49        return -1;
50    }
51    if(dp == NULL)
52    {
53        printf("Can't create display\n");
54        return -1;
55    }
56
57    w = (cucul_get_canvas_width(cv) - 4) / 2;
58    h = (cucul_get_canvas_height(cv) - 6) / 2;
59
60    if(w < 0 || h < 0)
61        return 1;
62
63    cucul_set_color_ansi(cv, CUCUL_WHITE, CUCUL_BLUE);
64    cucul_draw_line(cv, 0, 0, cucul_get_canvas_width(cv) - 1, 0, ' ');
65    cucul_printf(cv, cucul_get_canvas_width(cv) / 2 - 10, 0,
66                 "libcaca multiplexer");
67
68    for(i = 0; i < 4; i++)
69    {
70        buf[i] = NULL;
71        total[i] = bytes[i] = 0;
72        sprintf(cmd, "CACA_DRIVER=raw CACA_GEOMETRY=%ix%i %s",
73                     w, h, argv[i + 1]);
74        f[i] = popen(cmd, "r");
75        if(!f[i])
76            return 1;
77        cucul_printf(cv, (w + 2) * (i / 2) + 1,
78                         (h + 2) * ((i % 2) + 1), "%s", argv[i + 1]);
79    }
80
81    for(;;)
82    {
83        caca_event_t ev;
84        int ret = caca_get_event(dp, CACA_EVENT_ANY, &ev, 0);
85
86        if(ret && caca_get_event_type(&ev) & CACA_EVENT_KEY_PRESS)
87            break;
88
89        for(i = 0; i < 4; i++)
90        {
91            bytes[i] = cucul_import_memory(app, buf[i], total[i], "caca");
92
93            if(bytes[i] > 0)
94            {
95                total[i] -= bytes[i];
96                memmove(buf[i], buf[i] + bytes[i], total[i]);
97
98                cucul_blit(cv, (w + 2) * (i / 2) + 1,
99                               (h + 2) * (i % 2) + 2, app, NULL);
100                caca_refresh_display(dp);
101            }
102            else if(bytes[i] == 0)
103            {
104                buf[i] = realloc(buf[i], total[i] + 128);
105                fread(buf[i] + total[i], 128, 1, f[i]);
106                total[i] += 128;
107            }
108            else
109            {
110                fprintf(stderr, "%s: corrupted input %i\n", argv[0], i);
111                return -1;
112            }
113        }
114    }
115
116    /* Clean up */
117    caca_free_display(dp);
118    cucul_free_canvas(cv);
119    cucul_free_canvas(app);
120
121    return 0;
122}
123
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