FB2PNG: Add fb2png source to TWRP

  * Add Source of fb2png to TWRP tree
  * Android.mk by PhilZ-cwm6
  * Makefile for CrossCompiling via external toolchan by me (Talustus)

Change-Id: If9680688df6e4c9c567f74f46dfc303566b868ba
diff --git a/fb2png/main.c b/fb2png/main.c
new file mode 100644
index 0000000..84e08a9
--- /dev/null
+++ b/fb2png/main.c
@@ -0,0 +1,61 @@
+/**
+ * fb2png  Save screenshot into .png.
+ *
+ * Copyright (C) 2012  Kyan <kyan.ql.he@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#include <stdio.h>
+#include <limits.h>
+#include <stdlib.h>
+#include "fb2png.h"
+
+#ifdef ANDROID
+    #define DEFAULT_SAVE_PATH "/data/local/fbdump.png"
+#else
+    #define DEFAULT_SAVE_PATH "fbdump.png"
+#endif
+
+int main(int argc, char *argv[])
+{
+    char fn[PATH_MAX];
+    int ret;
+
+    if (argc == 2 && argv[1][0] != '-') {
+        if (strlen(argv[1]) >= PATH_MAX) {
+            printf("Output path is too long!\n");
+            exit(-1);
+        }
+        sprintf(fn, "%s", argv[1]);
+    } else if (argc == 1) {
+        sprintf(fn, "%s", DEFAULT_SAVE_PATH);
+    } else {
+        //if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
+        printf(
+            "Android Screenshooter - fb2png\n"
+            "Author: Kyan He <kyan.ql.he@gmail.com>\n"
+            "Modified by  Phil3759 & McKael @xda\n"
+            "Base version 0.0.2 ---> v0.0.5  <2013>\n"
+            "Usage: fb2png [path/to/output.png]\n"
+            "    The default output path is /data/local/fbdump.png\n"
+            );
+        exit(0);
+    }
+
+    if (0 == (ret = fb2png(fn)))
+        printf("Saved image to %s\n", fn);
+
+    exit(ret);
+}