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/*
* swallow swallow another libcaca application
* Copyright (c) 2006-2010 Sam Hocevar <sam@hocevar.net>
* All Rights Reserved
*
* This program is free software. It comes without any warranty, to
* the extent permitted by applicable law. You can redistribute it
* and/or modify it under the terms of the Do What The Fuck You Want
* To Public License, Version 2, as published by Sam Hocevar. See
* http://sam.zoy.org/wtfpl/COPYING for more details.
*/
#include "config.h"
#if !defined(__KERNEL__)
# include <stdio.h>
# include <string.h>
# include <stdlib.h>
#endif
#include "caca.h"
int main(int argc, char **argv)
{
char cmd[BUFSIZ];
static caca_canvas_t *cv, *app;
static caca_display_t *dp;
uint8_t *buf[4];
long int bytes[4], total[4];
FILE *f[4];
int w, h, i;
if(argc < 5)
{
fprintf(stderr, "usage: %s <cmd1> <cmd2> <cmd3> <cmd4>\n", argv[0]);
return 1;
}
cv = caca_create_canvas(0, 0);
app = caca_create_canvas(0, 0);
dp = caca_create_display(cv);
if(cv == NULL || app == NULL )
{
printf("Can't created canvas\n");
return -1;
}
if(dp == NULL)
{
printf("Can't create display\n");
return -1;
}
w = (caca_get_canvas_width(cv) - 4) / 2;
h = (caca_get_canvas_height(cv) - 6) / 2;
if(w < 0 || h < 0)
return 1;
caca_set_color_ansi(cv, CACA_WHITE, CACA_BLUE);
caca_draw_line(cv, 0, 0, caca_get_canvas_width(cv) - 1, 0, ' ');
caca_printf(cv, caca_get_canvas_width(cv) / 2 - 10, 0,
"libcaca multiplexer");
for(i = 0; i < 4; i++)
{
buf[i] = NULL;
total[i] = bytes[i] = 0;
sprintf(cmd, "CACA_DRIVER=raw CACA_GEOMETRY=%ix%i %s",
w, h, argv[i + 1]);
f[i] = popen(cmd, "r");
if(!f[i])
return 1;
caca_printf(cv, (w + 2) * (i / 2) + 1,
(h + 2) * ((i % 2) + 1), "%s", argv[i + 1]);
}
for(;;)
{
caca_event_t ev;
int ret = caca_get_event(dp, CACA_EVENT_ANY, &ev, 0);
if(ret && caca_get_event_type(&ev) & CACA_EVENT_KEY_PRESS)
break;
for(i = 0; i < 4; i++)
{
bytes[i] = caca_import_canvas_from_memory(app, buf[i],
total[i], "caca");
if(bytes[i] > 0)
{
total[i] -= bytes[i];
memmove(buf[i], buf[i] + bytes[i], total[i]);
caca_blit(cv, (w + 2) * (i / 2) + 1,
(h + 2) * (i % 2) + 2, app, NULL);
caca_refresh_display(dp);
}
else if(bytes[i] == 0)
{
buf[i] = realloc(buf[i], total[i] + 128);
fread(buf[i] + total[i], 128, 1, f[i]);
total[i] += 128;
}
else
{
fprintf(stderr, "%s: corrupted input %i\n", argv[0], i);
return -1;
}
}
}
/* Clean up */
caca_free_display(dp);
caca_free_canvas(cv);
caca_free_canvas(app);
return 0;
}
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