Fix LCD paint logic - use the repaint method

On mac, updates might not be performed when calling paint directly,
and the Graphics class shouldn't be retrieved directly.

Also on this TASEmulators fork, optimize FreeJ2ME's
lcd paint() method to only copy the 'Graphics g' argument into
a Graphics2D if screen rotation is enabled, which
should save us some time in the render path.

src/org/recompile/freej2me/FreeJ2ME.java

@@ -156,7 +156,8 @@ public void run()
 				/* Whenever AWT GUI notifies that its menu options were changed, update settings */
 				if(awtGUI.hasChanged()) { settingsChanged(); awtGUI.clearChanged(); }
 
-				lcd.paint(lcd.getGraphics());
+				lcd.repaint();
+				//lcd.paint(lcd.getGraphics());
 			}
 		});
 
@@ -547,12 +548,16 @@ public void updateScale(int vw, int vh)
 			scaley = (double)lcdHeight/(double)vh;
 		}
 
+		@Override
+        public void update(Graphics g) {
+            // Use paint method directly to avoid flicker
+            paint(g);
+        }
+
 		public void paint(Graphics g)
 		{
 			try
 			{
-				Graphics2D cgc = (Graphics2D)this.getGraphics();
-
 				if(limitFPS>0)
 				{
 					requiredFrametime = 1000 / limitFPS;
@@ -564,10 +569,7 @@ public void paint(Graphics g)
 
 				if (config.isRunning)
 				{
-					if(!rotateDisplay)
-					{
-						g.drawImage(config.getLCD(), cx, cy, cw, ch, null);
-					}
+					if(!rotateDisplay) { g.drawImage(config.getLCD(), cx, cy, cw, ch, null); }
 					else
 					{
 						// If rotated, simply redraw the config menu with different width and height
@@ -576,12 +578,10 @@ public void paint(Graphics g)
 				}
 				else
 				{
-					if(!rotateDisplay)
-					{
-						g.drawImage(Mobile.getPlatform().getLCD(), cx, cy, cw, ch, null);
-					}
+					if(!rotateDisplay) { g.drawImage(Mobile.getPlatform().getLCD(), cx, cy, cw, ch, null); }
 					else
 					{
+						final Graphics2D cgc = (Graphics2D)this.getGraphics();
 						// Rotate the FB 90 degrees counterclockwise with an adjusted pivot
 						cgc.rotate(Math.toRadians(-90), ch/2, ch/2);
 						// Draw the rotated FB with adjusted cy and cx values
@@ -590,10 +590,7 @@ public void paint(Graphics g)
 				}
 				lastRenderTime = System.currentTimeMillis();
 			}
-			catch (Exception e)
-			{
-				System.out.println(e.getMessage());
-			}
+			catch (Exception e)	{ System.out.println(e.getMessage()); }
 		}
 	}
 }