added toggle for integer or float scaling

app/src/main/java/xdsopl/robot36/ImageView.java

@@ -37,6 +37,7 @@ public class ImageView extends SurfaceView implements SurfaceHolder.Callback {
     private boolean takeABreak = true, cantTouchThis = true, quitThread = false;
     private int imageWidth = 320;
     private int imageHeight = 240;
+    private boolean intScale = false;
     MainActivity activity;
     private final SurfaceHolder holder;
     private final Bitmap bitmap;
@@ -134,6 +135,7 @@ public class ImageView extends SurfaceView implements SurfaceHolder.Callback {
         thread.start();
     }
 
+    void toggle_scaling() { intScale ^= true; }
     void softer_image() { rsDecoder.invoke_incr_blur(); }
     void sharper_image() { rsDecoder.invoke_decr_blur(); }
     void debug_sync() { rsDecoder.invoke_debug_sync(); }
@@ -254,18 +256,20 @@ public class ImageView extends SurfaceView implements SurfaceHolder.Callback {
     }
 
     void drawBitmap(Canvas canvas) {
-        float sx, sy, px, py;
+        float sx, sy;
         if (imageWidth * canvasHeight < canvasWidth * bitmap.getHeight()) {
             sy = (float)canvasHeight / bitmap.getHeight();
             sx = sy * imageWidth / bitmap.getWidth();
-            px = (canvasWidth - sx * bitmap.getWidth()) / 2.0f;
-            py = 0.0f;
         } else {
             sx = (float)canvasWidth / bitmap.getWidth();
             sy = (float)canvasWidth / imageWidth;
-            px = 0.0f;
-            py = (canvasHeight - sy * bitmap.getHeight()) / 2.0f;
         }
+        if (intScale) {
+            sx = (float)Math.floor(sx);
+            sy = (float)Math.floor(sy);
+        }
+        float px = (canvasWidth - sx * bitmap.getWidth()) / 2.0f;
+        float py = (canvasHeight - sy * bitmap.getHeight()) / 2.0f;
         canvas.drawColor(Color.BLACK);
         canvas.save();
         canvas.scale(sx, sy, px, py);

app/src/main/java/xdsopl/robot36/MainActivity.java

@@ -148,6 +148,9 @@ public class MainActivity extends Activity {
             case R.id.action_sharper_image:
                 view.sharper_image();
                 return true;
+            case R.id.action_toggle_scaling:
+                view.toggle_scaling();
+                return true;
             case R.id.action_robot36_mode:
                 view.robot36_mode();
                 return true;

app/src/main/res/menu/menu_main.xml

@@ -5,6 +5,8 @@
         android:orderInCategory="100" android:showAsAction="never" />
     <item android:id="@+id/action_sharper_image" android:title="@string/action_sharper_image"
         android:orderInCategory="100" android:showAsAction="never" />
+    <item android:id="@+id/action_toggle_scaling" android:title="@string/action_toggle_scaling"
+        android:orderInCategory="100" android:showAsAction="never" />
     <item android:id="@+id/action_robot36_mode" android:title="@string/action_robot36_mode"
         android:orderInCategory="100" android:showAsAction="never" />
     <item android:id="@+id/action_robot72_mode" android:title="@string/action_robot72_mode"

app/src/main/res/values/strings.xml

@@ -17,5 +17,6 @@
     <string name="action_wrasseSC2_180_mode">WrasseSC2 180 Mode</string>
     <string name="action_softer_image">Softer Image</string>
     <string name="action_sharper_image">Sharper Image</string>
+    <string name="action_toggle_scaling">Toggle Scaling</string>
 
 </resources>