* libcaca multiplexer: swallows two libcaca applications, for instance

cacademo and cacafire, and displays them in a canvas.

test/Makefile.am

@@ -2,7 +2,7 @@
 
 AM_CPPFLAGS = -I$(top_srcdir) -I$(top_srcdir)/cucul -I$(top_srcdir)/caca -DDATADIR=\"$(pkgdatadir)\"
 
-noinst_PROGRAMS = blit colors demo demo0 dithering event export font frames fullwidth gamma hsv input spritedit font2tga text transform truecolor unicode import
+noinst_PROGRAMS = blit colors demo demo0 dithering event export font font2tga frames fullwidth gamma hsv input spritedit swallow text transform truecolor unicode import
 
 blit_SOURCES = blit.c
 blit_LDADD = ../caca/libcaca.la ../cucul/libcucul.la
@@ -52,6 +52,9 @@ input_LDADD = ../caca/libcaca.la ../cucul/libcucul.la
 spritedit_SOURCES = spritedit.c
 spritedit_LDADD = ../caca/libcaca.la ../cucul/libcucul.la
 
+swallow_SOURCES = swallow.c
+swallow_LDADD = ../caca/libcaca.la ../cucul/libcucul.la
+
 text_SOURCES = text.c
 text_LDADD = ../cucul/libcucul.la
 

test/swallow.c

@@ -0,0 +1,99 @@
+/*
+ *  swallow       swallow another libcaca application
+ *  Copyright (c) 2006 Sam Hocevar <sam@zoy.org>
+ *                All Rights Reserved
+ *
+ *  $Id$
+ *
+ *  This program is free software; 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"
+#include "common.h"
+#if !defined(__KERNEL__)
+#   include <stdio.h>
+#   include <string.h>
+#   include <stdlib.h>
+#endif
+
+#include "cucul.h"
+#include "caca.h"
+
+int main(int argc, char **argv)
+{
+    char cmd[BUFSIZ];
+    static cucul_canvas_t *cv, *app;
+    static caca_display_t *dp;
+    unsigned char *buf[2];
+    unsigned long int bytes[2], total[2];
+    FILE *f[2];
+    int w, h, i;
+
+    buf[0] = buf[1] = NULL;
+    total[0] = total[1] = 0;
+
+    if(argc < 3)
+        return 1;
+
+    cv = cucul_create_canvas(0, 0);
+    app = cucul_create_canvas(0, 0);
+    w = 38;
+    h = 26;
+
+    dp = caca_create_display(cv);
+    if(!dp)
+        return 1;
+
+    cucul_set_color_ansi(cv, CUCUL_WHITE, CUCUL_BLUE);
+    cucul_printf(cv, 1, h + 4, "libcaca multiplexer");
+
+    for(i = 0; i < 2; i++)
+    {
+        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;
+        cucul_printf(cv, 40 * i + 1, 1, "%s", argv[i + 1]);
+    }
+
+    for(;;)
+    {
+        caca_event_t ev;
+        int ret = caca_get_event(dp, CACA_EVENT_ANY, &ev, 0);
+
+        if(ret && ev.type & CACA_EVENT_KEY_PRESS)
+            break;
+
+        for(i = 0; i < 2; i++)
+        {
+            bytes[i] = cucul_import_memory(app, buf[i], total[i], "caca");
+
+            if(bytes[i] > 0)
+            {
+                total[i] -= bytes[i];
+                memmove(buf[i], buf[i] + bytes[i], total[i]);
+
+                cucul_blit(cv, 1 + i * (w + 2), 3, 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;
+            }
+        }
+    }
+
+    /* Clean up */
+    caca_free_display(dp);
+    cucul_free_canvas(cv);
+    cucul_free_canvas(app);
+
+    return 0;
+}
+