122 lines
3.1 KiB
C
122 lines
3.1 KiB
C
/*
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* swallow swallow another libcaca application
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* Copyright (c) 2006-2012 Sam Hocevar <sam@hocevar.net>
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* All Rights Reserved
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*
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* This program is free software. It comes without any warranty, to
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* the extent permitted by applicable law. You can redistribute it
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* and/or modify it under the terms of the Do What the Fuck You Want
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* to Public License, Version 2, as published by Sam Hocevar. See
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* http://www.wtfpl.net/ for more details.
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*/
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#include "config.h"
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#if !defined(__KERNEL__)
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# include <stdio.h>
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# include <string.h>
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# include <stdlib.h>
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#endif
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#include "caca.h"
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int main(int argc, char **argv)
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{
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char cmd[BUFSIZ];
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static caca_canvas_t *cv, *app;
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static caca_display_t *dp;
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uint8_t *buf[4];
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long int bytes[4], total[4];
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FILE *f[4];
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int w, h, i;
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if(argc < 5)
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{
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fprintf(stderr, "usage: %s <cmd1> <cmd2> <cmd3> <cmd4>\n", argv[0]);
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return 1;
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}
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cv = caca_create_canvas(0, 0);
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app = caca_create_canvas(0, 0);
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dp = caca_create_display(cv);
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if(cv == NULL || app == NULL )
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{
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printf("Can't created canvas\n");
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return -1;
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}
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if(dp == NULL)
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{
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printf("Can't create display\n");
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return -1;
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}
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w = (caca_get_canvas_width(cv) - 4) / 2;
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h = (caca_get_canvas_height(cv) - 6) / 2;
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if(w < 0 || h < 0)
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return 1;
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caca_set_color_ansi(cv, CACA_WHITE, CACA_BLUE);
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caca_draw_line(cv, 0, 0, caca_get_canvas_width(cv) - 1, 0, ' ');
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caca_printf(cv, caca_get_canvas_width(cv) / 2 - 10, 0,
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"libcaca multiplexer");
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for(i = 0; i < 4; i++)
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{
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buf[i] = NULL;
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total[i] = bytes[i] = 0;
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sprintf(cmd, "CACA_DRIVER=raw CACA_GEOMETRY=%ix%i %s",
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w, h, argv[i + 1]);
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f[i] = popen(cmd, "r");
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if(!f[i])
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return 1;
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caca_printf(cv, (w + 2) * (i / 2) + 1,
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(h + 2) * ((i % 2) + 1), "%s", argv[i + 1]);
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}
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for(;;)
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{
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caca_event_t ev;
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int ret = caca_get_event(dp, CACA_EVENT_ANY, &ev, 0);
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if(ret && caca_get_event_type(&ev) & CACA_EVENT_KEY_PRESS)
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break;
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for(i = 0; i < 4; i++)
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{
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bytes[i] = caca_import_canvas_from_memory(app, buf[i],
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total[i], "caca");
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if(bytes[i] > 0)
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{
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total[i] -= bytes[i];
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memmove(buf[i], buf[i] + bytes[i], total[i]);
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caca_blit(cv, (w + 2) * (i / 2) + 1,
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(h + 2) * (i % 2) + 2, app, NULL);
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caca_refresh_display(dp);
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}
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else if(bytes[i] == 0)
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{
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buf[i] = realloc(buf[i], total[i] + 128);
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fread(buf[i] + total[i], 128, 1, f[i]);
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total[i] += 128;
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}
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else
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{
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fprintf(stderr, "%s: corrupted input %i\n", argv[0], i);
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return -1;
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}
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}
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}
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/* Clean up */
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caca_free_display(dp);
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caca_free_canvas(cv);
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caca_free_canvas(app);
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return 0;
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}
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