Revert "Persistence options"

This reverts commit aef2fbccdc.

README.md

@@ -65,9 +65,3 @@ If multiple images match the filename spec, thumbnails are shown.
 The top image was generated with the character optimization disabled via the `-0` option.
 
 ![Comparison](https://i.imgur.com/OzdCeh6.png)
-
-## Save file 
-
-Saving the disk image for use in other processes or softwares via the -o option
-
-![Persistence](https://i.imgur.com/LMb5KBX.png)

src/main/cpp/tiv.cpp

@@ -17,7 +17,6 @@ const int FLAG_BG = 2;
 const int FLAG_MODE_256 = 4;
 const int FLAG_24BIT = 8;
 const int FLAG_NOOPT = 16;
-const int FLAG_SAVE  = 32;
 
 const int COLOR_STEP_COUNT = 6;
 const int COLOR_STEPS[COLOR_STEP_COUNT] = {0, 0x5f, 0x87, 0xaf, 0xd7, 0xff};
@@ -419,7 +418,6 @@ void emit_usage() {
   std::cerr << "  -help     : Display this help text." << std::endl;
   std::cerr << "  -h <num>  : Set the maximum height to <num> lines." << std::endl;
   std::cerr << "  -w <num>  : Set the maximum width to <num> characters." << std::endl << std::endl;
-  std::cerr << "  -o <name> : Output file name." << std::endl << std::endl;
 }
 
 enum Mode {AUTO, THUMBNAILS, FULL_SIZE};
@@ -444,18 +442,12 @@ cimg_library::CImg<unsigned char> load_rgb_CImg(const char * const filename) {
 int main(int argc, char* argv[]) {
   struct winsize w;
   ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
-
-  //If redirect STDOUT to one file ( col and row == 0 )
-  if(w.ws_col == 0 && w.ws_row == 0) {
-    ioctl(0, TIOCGWINSZ, &w);
-  }
-
+  
   int maxWidth = w.ws_col * 4;
   int maxHeight = w.ws_row * 8;
   int flags = 0;
   Mode mode = AUTO;
   int columns = 3;
-  std::string output_file;  
 
   std::vector<std::string> file_names;
   int error = 0;
@@ -469,9 +461,6 @@ int main(int argc, char* argv[]) {
     std::string arg(argv[i]);
     if (arg == "-0") {
       flags |= FLAG_NOOPT;
-    } else if (arg == "-o") {
-      output_file = argv[++i];
-      flags |= FLAG_SAVE;
     } else if (arg == "-c") {
       columns = std::stoi(argv[++i]);
     } else if (arg == "-d") {
@@ -501,9 +490,7 @@ int main(int argc, char* argv[]) {
     }
   }
 
-  if ((flags & FLAG_SAVE) != 0) {
-    freopen(output_file.c_str(),"w",stdout); 	  
-  }	
+
   if (mode == FULL_SIZE || (mode == AUTO && file_names.size() == 1)) {
     for (unsigned int i = 0; i < file_names.size(); i++) {
       try {