/* webcollage-helper --- scales and pastes one image into another
- * xscreensaver, Copyright (c) 2002-2005 Jamie Zawinski <jwz@jwz.org>
+ * xscreensaver, Copyright (c) 2002-2017 Jamie Zawinski <jwz@jwz.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
}
+static guint32
+parse_color (const char *s)
+{
+ static const char hex[128] =
+ {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0,
+ 0, 10,11,12,13,14,15,0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 10,11,12,13,14,15,0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+
+ unsigned char r=0, g=0, b=0;
+
+ if (!strcasecmp (s, "black")) ;
+ else if (!strcasecmp (s, "white")) r = g = b = 0xFF;
+ else if (!strcasecmp (s, "red")) r = 0xFF;
+ else if (!strcasecmp (s, "green")) g = 0xFF;
+ else if (!strcasecmp (s, "blue")) b = 0xFF;
+ else
+ {
+ if (*s != '#' || strlen(s) != 7)
+ {
+ fprintf (stderr, "%s: unparsable color: \"%s\"\n", progname, s);
+ exit (1);
+ }
+ s++;
+ r = (hex[(int) s[0]] << 4) | hex[(int) s[1]], s += 2;
+ g = (hex[(int) s[0]] << 4) | hex[(int) s[1]], s += 2;
+ b = (hex[(int) s[0]] << 4) | hex[(int) s[1]], s += 2;
+ }
+
+ return (r << 16) | (g << 8) | b;
+}
+
+
+static void
+create (const char *color,
+ int w, int h,
+ const char *file)
+{
+ int i;
+ GdkPixbuf *pb;
+ guint32 pixel = parse_color (color);
+ unsigned char *bytes = malloc (w * h * 3);
+ if (!bytes) abort();
+ for (i = 0; i < w * h * 3; i += 3)
+ {
+ bytes[i] = 0xFF & (pixel >> 16);
+ bytes[i+1] = 0xFF & (pixel >> 8);
+ bytes[i+2] = 0xFF & (pixel);
+ }
+
+ pb = gdk_pixbuf_new_from_data (bytes, GDK_COLORSPACE_RGB,
+ FALSE, 8, /* alpha, sample size */
+ w, h,
+ w * 3, /* rowstride */
+ NULL, 0);
+ if (!pb) abort();
+ write_pixbuf (pb, file);
+ g_object_unref (pb);
+ free (bytes);
+}
+
+
static void
write_pixbuf (GdkPixbuf *pb, const char *file)
{
static void
usage (void)
{
- fprintf (stderr, "usage: %s [-v] paste-file base-file\n"
+ fprintf (stderr,
+ "\nusage: %s [-v] paste-file base-file\n"
"\t from-scale opacity\n"
"\t from-x from-y to-x to-y w h\n"
"\n"
"\t Pastes paste-file into base-file.\n"
"\t base-file will be overwritten (with JPEG data.)\n"
- "\t scaling is applied first: coordinates apply to scaled image.\n",
- progname);
+ "\t scaling is applied first: coordinates apply to scaled image.\n"
+ "\n"
+ "usage: %s [-v] color width height output-file\n"
+ "\t Creates a new image of a solid color.\n\n",
+ progname, progname);
exit (1);
}
s = strrchr (progname, '/');
if (s) progname = s+1;
- if (argc != 11 && argc != 12) usage();
-
if (!strcmp(argv[i], "-v"))
verbose_p++, i++;
- paste_file = argv[i++];
- base_file = argv[i++];
-
- if (*paste_file == '-') usage();
- if (*base_file == '-') usage();
-
- s = argv[i++];
- if (1 != sscanf (s, " %lf %c", &from_scale, &dummy)) usage();
- if (from_scale <= 0 || from_scale > 100) usage();
-
- s = argv[i++];
- if (1 != sscanf (s, " %lf %c", &opacity, &dummy)) usage();
- if (opacity <= 0 || opacity > 1) usage();
-
- s = argv[i++]; if (1 != sscanf (s, " %d %c", &from_x, &dummy)) usage();
- s = argv[i++]; if (1 != sscanf (s, " %d %c", &from_y, &dummy)) usage();
- s = argv[i++]; if (1 != sscanf (s, " %d %c", &to_x, &dummy)) usage();
- s = argv[i++]; if (1 != sscanf (s, " %d %c", &to_y, &dummy)) usage();
- s = argv[i++]; if (1 != sscanf (s, " %d %c", &w, &dummy)) usage();
- s = argv[i++]; if (1 != sscanf (s, " %d %c", &h, &dummy)) usage();
-
- bevel_pct = 10; /* #### */
-
- if (w < 0) usage();
- if (h < 0) usage();
+ if (argc == 11 || argc == 12)
+ {
+ paste_file = argv[i++];
+ base_file = argv[i++];
+
+ if (*paste_file == '-') usage();
+ if (*base_file == '-') usage();
+
+ s = argv[i++];
+ if (1 != sscanf (s, " %lf %c", &from_scale, &dummy)) usage();
+ if (from_scale <= 0 || from_scale > 100) usage();
+
+ s = argv[i++];
+ if (1 != sscanf (s, " %lf %c", &opacity, &dummy)) usage();
+ if (opacity <= 0 || opacity > 1) usage();
+
+ s = argv[i++]; if (1 != sscanf (s, " %d %c", &from_x, &dummy)) usage();
+ s = argv[i++]; if (1 != sscanf (s, " %d %c", &from_y, &dummy)) usage();
+ s = argv[i++]; if (1 != sscanf (s, " %d %c", &to_x, &dummy)) usage();
+ s = argv[i++]; if (1 != sscanf (s, " %d %c", &to_y, &dummy)) usage();
+ s = argv[i++]; if (1 != sscanf (s, " %d %c", &w, &dummy)) usage();
+ s = argv[i]; if (1 != sscanf (s, " %d %c", &h, &dummy)) usage();
+
+ bevel_pct = 10; /* #### */
+
+ if (w < 0) usage();
+ if (h < 0) usage();
+
+# ifdef HAVE_GTK2
+# if !GLIB_CHECK_VERSION(2, 36 ,0)
+ g_type_init ();
+# endif
+# endif /* HAVE_GTK2 */
+
+ paste (paste_file, base_file,
+ from_scale, opacity, bevel_pct,
+ from_x, from_y, to_x, to_y,
+ w, h);
+ }
+ else if (argc == 4 || argc == 5)
+ {
+ char *color = argv[i++];
+ s = argv[i++]; if (1 != sscanf (s, " %d %c", &w, &dummy)) usage();
+ s = argv[i++]; if (1 != sscanf (s, " %d %c", &h, &dummy)) usage();
+ paste_file = argv[i++];
+ if (*paste_file == '-') usage();
-#ifdef HAVE_GTK2
-#if !GLIB_CHECK_VERSION(2, 36 ,0)
- g_type_init ();
-#endif
-#endif /* HAVE_GTK2 */
+ create (color, w, h, paste_file);
+ }
+ else
+ {
+ usage();
+ }
- paste (paste_file, base_file,
- from_scale, opacity, bevel_pct,
- from_x, from_y, to_x, to_y,
- w, h);
exit (0);
}
projects / xscreensaver / blobdiff