save bmp

mandelbrot.c

@@ -18,17 +18,13 @@ int main(int argc, char *argv[]) {
     int y = i / screen->w;
     int x = i % screen->w;
 
-    if (x == 0) {
-      printf("y = %d\n", y);
-    }
-
     float complex c = ((3.0 * x / screen->w) - 2.0)
         + I * ((2.0 * y / screen->h) - 1.0);
 
     bool diverges = false;
     float complex z = 0;
     int it;
-    for (it=1; it<256; it++) {
+    for (it = 1; it < 256; it++) {
       z = cpowf(z, 2) + c;
       if (cabs(z) > 100) {
         diverges = true;
@@ -47,6 +43,13 @@ int main(int argc, char *argv[]) {
     if (y % 10 == 0)
       SDL_Flip(screen);
   }
+
+  /* Save BMP */
+  char *file = "mandelbrot.bmp";
+  if (SDL_SaveBMP(screen, file) != 0) {
+    fprintf(stderr, "Could not write %s!\n", file);
+  }
+
   if (SDL_MUSTLOCK(screen)) {
     SDL_UnlockSurface(screen);
   }