added main/Scene module; updated main/fart.cc to use getopt_long()

git-svn-id: svn://anubis/fart/trunk@19 7f9b0f55-74a9-4bce-be96-3c2cd072584d

main/Scene.h

@@ -0,0 +1,10 @@
+
+#ifndef SCENE_H
+#define SCENE_H SCENE_H
+
+class Scene
+{
+};
+
+#endif
+

main/fart.cc

@@ -1,8 +1,56 @@
 
 #include <iostream>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <getopt.h>
 using namespace std;
 
+void usage(const char * progname)
+{
+    cout << "Usage: " << progname << " [options] <scene-file>" << endl;
+    cout << "  Options:" << endl;
+    cout << "    -w|--width <image-width>" << endl;
+    cout << "    -h|--height <image-height>" << endl;
+    cout << "    -m|--multisample <level>" << endl;
+    exit(42);
+}
+
 int main(int argc, char * argv[])
 {
+    int opt;
+    int option_index;
+
+    static const struct option long_options[] = {
+        { "width",          required_argument, NULL, 'w' },
+        { "height",         required_argument, NULL, 'h' },
+        { "multisample",    required_argument, NULL, 'm' },
+        { NULL,             0,                 NULL, 0   }
+    };
+
+    while ((opt = getopt_long(argc, argv, "w:h:m:",
+                              long_options, &option_index)) != -1)
+    {
+        switch (opt)
+        {
+            case 'w':
+                cout << "width: " << optarg << endl;
+                break;
+            case 'h':
+                cout << "height: " << optarg << endl;
+                break;
+            case 'm':
+                cout << "multisample level: " << optarg << endl;
+                break;
+            default:
+                usage(argv[0]);
+        }
+    }
+
+    if (optind >= argc)
+    {
+        usage(argv[0]);
+    }
+
     cout << "hi" << endl;
 }