gave window a title, generated pixels differently

git-svn-id: svn://anubis/gvsu@313 45c1a28c-8058-47b2-ae61-ca45b979098e

cs677/final/mpi-fractals.cc

@@ -9,6 +9,8 @@
 #include <iostream>
 using namespace std;
 
+#define PROGNAME "Josh's CS677 Final : MPI Fractal Generator"
+
 int main(int argc, char * argv[])
 {
     int width = 800;
@@ -30,11 +32,17 @@ int main(int argc, char * argv[])
         cerr << "Failed to set video mode!" << endl;
         return 2;
     }
+    SDL_WM_SetCaption(PROGNAME, PROGNAME);
 
     Uint32 * pixels = (Uint32 *) screen->pixels;
-    Uint32 c;
-    for (c = 0; c < width * height; c++)
-        *pixels++ = c;
+    for (int y = 0; y < height; y++)
+    {
+        for (int x = 0; x < width; x++)
+        {
+            *pixels++ = (((x * 255 / width) & 0xFF) << 8)
+                      + ((y * 255 / height) & 0xFF);
+        }
+    }
     SDL_UpdateRect(screen, 0, 0, 0, 0);
 
     bool going = true;