front: Fixed additional resolution issue in portrait mode.

Also, made the ratio for 16:9 to 4:3 be a dynamic value instead of
hardcoded.

src/paulscode/android/mupen64plusae/persistent/GamePrefs.java

@@ -14,6 +14,7 @@
 import paulscode.android.mupen64plusae.util.Plugin;
 import android.content.Context;
 import android.content.SharedPreferences;
+import android.content.pm.ActivityInfo;
 import android.text.TextUtils;
 
 public class GamePrefs
@@ -175,7 +176,7 @@ public class GamePrefs
     public int videoRenderWidth;
 
     /** The height of the OpenGL rendering context, in pixels. */
-    public final int videoRenderHeight;
+    public int videoRenderHeight;
 
     /** The zoom value applied to the viewing surface, in percent. */
     public final int videoSurfaceZoom;
@@ -331,8 +332,20 @@ public GamePrefs( Context context, String romMd5, String crc, String headerName,
 
         if(globalPrefs.mStretch)
         {
-            float newWidth = videoRenderWidth * 1.333333f;
-            videoRenderWidth = Math.round(newWidth);
+            //If we are in stretch mode we have to increase the approppriate dimension by the corresponding
+            //ratio to make it full screen
+            if(globalPrefs.displayOrientation == ActivityInfo.SCREEN_ORIENTATION_PORTRAIT ||
+                globalPrefs.displayOrientation == ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT)
+            {
+
+                float newWidth = videoRenderHeight * globalPrefs.heightRatio;
+                videoRenderHeight = Math.round(newWidth);
+            }
+            else
+            {
+                float newWidth = videoRenderWidth * globalPrefs.widthRatio;
+                videoRenderWidth = Math.round(newWidth);
+            }
         }
 
         videoSurfaceZoom = getSafeInt( mPreferences, "displayZoom", 100 );

src/paulscode/android/mupen64plusae/persistent/GlobalPrefs.java

@@ -181,6 +181,12 @@ public class GlobalPrefs
     /** The height of the viewing surface, in pixels with the correct aspect ratio. */
     public final int videoSurfaceHeightOriginal;
 
+    /** Screen width ratio from 16:9 to 4:3*/
+    public final float widthRatio;
+
+    /** Screen width ratio from 16:9 to 4:3*/
+    public final float heightRatio;
+
     /** The action bar transparency value. */
     public final int displayActionBarTransparency;
 
@@ -462,13 +468,15 @@ else if( AppData.IS_KITKAT && isImmersiveModeEnabled )
                 stretchWidth = dimensions.x;
                 stretchHeight = dimensions.y;
             }
-
+                        
             float aspect = 0.75f; // TODO: Handle PAL
             boolean isLetterboxed = ( (float) stretchHeight / (float) stretchWidth ) > aspect;
             int originalWidth = isLetterboxed ? stretchWidth : Math.round( (float) stretchHeight / aspect );
             int originalHeight = isLetterboxed ? Math.round( (float) stretchWidth * aspect ) : stretchHeight;
 
             String scaling = mPreferences.getString( "displayScaling", "original" );
+            widthRatio = (float)stretchWidth/(float)originalWidth;
+            heightRatio = (float)stretchHeight/(float)originalHeight;
 
             videoSurfaceWidthOriginal = originalWidth;
             videoSurfaceHeightOriginal = originalHeight;