Merge pull request #9215 from JosJuice/android-pointer-portrait

Android/InputOverlayPointer: Don't assume surface covers whole screen

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/fragments/EmulationFragment.java

@@ -1,6 +1,7 @@
 package org.dolphinemu.dolphinemu.fragments;
 
 import android.content.Context;
+import android.graphics.Rect;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.Surface;
@@ -93,6 +94,15 @@ public final class EmulationFragment extends Fragment implements SurfaceHolder.C
       doneButton.setOnClickListener(v -> stopConfiguringControls());
     }
 
+    contents.post(() ->
+    {
+      int overlayX = mInputOverlay.getLeft();
+      int overlayY = mInputOverlay.getTop();
+      mInputOverlay.setSurfacePosition(new Rect(
+              surfaceView.getLeft() - overlayX, surfaceView.getTop() - overlayY,
+              surfaceView.getRight() - overlayX, surfaceView.getBottom() - overlayY));
+    });
+
     // The new Surface created here will get passed to the native code via onSurfaceChanged.
 
     return contents;

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlay.java

@@ -60,7 +60,9 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener
   private final Set<InputOverlayDrawableButton> overlayButtons = new HashSet<>();
   private final Set<InputOverlayDrawableDpad> overlayDpads = new HashSet<>();
   private final Set<InputOverlayDrawableJoystick> overlayJoysticks = new HashSet<>();
-  private InputOverlayPointer overlayPointer;
+  private InputOverlayPointer overlayPointer = null;
+
+  private Rect mSurfacePosition = null;
 
   private boolean mIsFirstRun = true;
   private boolean mIsInEditMode = false;
@@ -125,19 +127,7 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener
 
     // Load the controls if we can. If not, EmulationActivity has to do it later.
     if (NativeLibrary.IsGameMetadataValid())
-    {
-      if (NativeLibrary.IsRunning())
-      {
-        // We would've needed a refreshControls call here in addition to the initTouchPointer call
-        // if it wasn't for initTouchPointer calling refreshControls.
-        initTouchPointer();
-      }
-      else
-      {
-        // We can't call initTouchPointer yet because it needs the aspect ratio of the running game.
       refreshControls();
-      }
-    }
 
     // Set the on touch listener.
     setOnTouchListener(this);
@@ -149,13 +139,23 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener
     requestFocus();
   }
 
+  public void setSurfacePosition(Rect rect)
+  {
+    mSurfacePosition = rect;
+    initTouchPointer();
+  }
+
   public void initTouchPointer()
   {
-    // Refresh before starting the pointer
+    // Check if we have all the data we need yet
-    refreshControls();
+    boolean aspectRatioAvailable = NativeLibrary.IsRunning() && !NativeLibrary.IsBooting();
+    if (!aspectRatioAvailable || mSurfacePosition == null)
+      return;
+
+    // Check if there's any point in running the pointer code
+    if (!NativeLibrary.IsEmulatingWii())
+      return;
 
-    if (NativeLibrary.IsEmulatingWii())
-    {
     int doubleTapButton = IntSetting.MAIN_DOUBLE_TAP_BUTTON.getIntGlobal();
 
     if (mPreferences.getInt("wiiController", OVERLAY_WIIMOTE_NUNCHUK) !=
@@ -165,8 +165,7 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener
       doubleTapButton = InputOverlayPointer.DOUBLE_TAP_A;
     }
 
-      overlayPointer = new InputOverlayPointer(this.getContext(), doubleTapButton);
+    overlayPointer = new InputOverlayPointer(mSurfacePosition, doubleTapButton);
-    }
   }
 
   @Override

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayPointer.java

@@ -1,10 +1,7 @@
 package org.dolphinemu.dolphinemu.overlay;
 
-import android.app.Activity;
+import android.graphics.Rect;
-import android.content.Context;
 import android.os.Handler;
-import android.util.DisplayMetrics;
-import android.view.Display;
 import android.view.MotionEvent;
 
 import org.dolphinemu.dolphinemu.NativeLibrary;
@@ -20,10 +17,11 @@ public class InputOverlayPointer
 
   private final float[] axes = {0f, 0f};
 
-  private float maxHeight;
+  private float mGameCenterX;
-  private float maxWidth;
+  private float mGameCenterY;
-  private float aspectAdjusted;
+  private float mGameWidthHalfInv;
-  private boolean xAdjusted;
+  private float mGameHeightHalfInv;
+
   private boolean doubleTap = false;
   private int doubleTapButton;
   private int trackId = -1;
@@ -38,39 +36,33 @@ public class InputOverlayPointer
     DOUBLE_TAP_OPTIONS.add(NativeLibrary.ButtonType.CLASSIC_BUTTON_A);
   }
 
-  public InputOverlayPointer(Context context, int button)
+  public InputOverlayPointer(Rect surfacePosition, int button)
   {
-    Display display = ((Activity) context).getWindowManager().getDefaultDisplay();
-    DisplayMetrics outMetrics = new DisplayMetrics();
-    display.getMetrics(outMetrics);
     doubleTapButton = button;
 
-    Integer y = outMetrics.heightPixels;
+    mGameCenterX = (surfacePosition.left + surfacePosition.right) / 2.0f;
-    Integer x = outMetrics.widthPixels;
+    mGameCenterY = (surfacePosition.top + surfacePosition.bottom) / 2.0f;
+
+    float gameWidth = surfacePosition.right - surfacePosition.left;
+    float gameHeight = surfacePosition.bottom - surfacePosition.top;
 
     // Adjusting for device's black bars.
-    float deviceAR = (float) x / y;
+    float surfaceAR = gameWidth / gameHeight;
     float gameAR = NativeLibrary.GetGameAspectRatio();
-    aspectAdjusted = gameAR / deviceAR;
 
-    if (gameAR <= deviceAR) // Black bars on left/right
+    if (gameAR <= surfaceAR)
     {
-      xAdjusted = true;
+      // Black bars on left/right
-      Integer gameX = Math.round((float) y * gameAR);
+      gameWidth = gameHeight * gameAR;
-      Integer buffer = (x - gameX);
-
-      maxWidth = (float) (x - buffer) / 2;
-      maxHeight = (float) y / 2;
     }
-    else // Bars on top/bottom
+    else
     {
-      xAdjusted = false;
+      // Black bars on top/bottom
-      Integer gameY = Math.round((float) x / gameAR);
+      gameHeight = gameWidth / gameAR;
-      Integer buffer = (y - gameY);
-
-      maxWidth = (float) x / 2;
-      maxHeight = (float) (y - buffer) / 2;
     }
+
+    mGameWidthHalfInv = 1.0f / (gameWidth * 0.5f);
+    mGameHeightHalfInv = 1.0f / (gameHeight * 0.5f);
   }
 
   public void onTouch(MotionEvent event)
@@ -94,18 +86,8 @@ public class InputOverlayPointer
     if (trackId == -1)
       return;
 
-    int x = (int) event.getX(event.findPointerIndex(trackId));
+    axes[0] = (event.getY(event.findPointerIndex(trackId)) - mGameCenterY) * mGameHeightHalfInv;
-    int y = (int) event.getY(event.findPointerIndex(trackId));
+    axes[1] = (event.getX(event.findPointerIndex(trackId)) - mGameCenterX) * mGameWidthHalfInv;
-    if (xAdjusted)
-    {
-      axes[0] = (y - maxHeight) / maxHeight;
-      axes[1] = ((x * aspectAdjusted) - maxWidth) / maxWidth;
-    }
-    else
-    {
-      axes[0] = ((y * aspectAdjusted) - maxHeight) / maxHeight;
-      axes[1] = (x - maxWidth) / maxWidth;
-    }
   }
 
   private void touchPress()