From 1ea460a89823864216b47aae767b0d8f5dceb3ee Mon Sep 17 00:00:00 2001
From: Jay Wang <jaywang@codeaurora.org>
Date: Tue, 6 Jan 2015 16:19:44 -0800
Subject: SnapdragonCamera: Fixed aspect ratio in panormic shoot

Fixed aspect ratio of the full screen preview. The camera preview
size is chosen based on the aspect ratio of device screen.

Change-Id: Ibc7c497a87d8f0cca2701d8709f010caa6f79308
---
 .../android/camera/WideAnglePanoramaModule.java    | 34 ++++++++++++++++++----
 1 file changed, 28 insertions(+), 6 deletions(-)

diff --git a/src/com/android/camera/WideAnglePanoramaModule.java b/src/com/android/camera/WideAnglePanoramaModule.java
index 40878581e..bc9fd8602 100644
--- a/src/com/android/camera/WideAnglePanoramaModule.java
+++ b/src/com/android/camera/WideAnglePanoramaModule.java
@@ -44,6 +44,7 @@ import android.view.OrientationEventListener;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.WindowManager;
+import android.view.Display;
 import android.widget.Toast;
 import com.android.camera.PhotoModule;
 import com.android.camera.CameraManager.CameraProxy;
@@ -109,6 +110,8 @@ public class WideAnglePanoramaModule
     private boolean mUsingFrontCamera;
     private int mCameraPreviewWidth;
     private int mCameraPreviewHeight;
+    private int mScreenWidth;
+    private int mScreenHeight;
     private int mCameraState;
     private int mCaptureState;
     private PowerManager.WakeLock mPartialWakeLock;
@@ -369,14 +372,13 @@ public class WideAnglePanoramaModule
         return true;
     }
 
-    private boolean findBestPreviewSize(List<Size> supportedSizes, boolean need4To3,
+    private boolean findBestPreviewSize(List<Size> supportedSizes, boolean need4To3, boolean need16To9,
             boolean needSmaller) {
         int pixelsDiff = DEFAULT_CAPTURE_PIXELS;
         boolean hasFound = false;
         for (Size size : supportedSizes) {
             int h = size.height;
             int w = size.width;
-            // we only want 4:3 format.
             int d = DEFAULT_CAPTURE_PIXELS - h * w;
             if (needSmaller && d < 0) { // no bigger preview than 960x720.
                 continue;
@@ -384,6 +386,9 @@ public class WideAnglePanoramaModule
             if (need4To3 && (h * 4 != w * 3)) {
                 continue;
             }
+            if (need16To9 && (h * 16 != w * 9)) {
+                continue;
+            }
             d = Math.abs(d);
             if (d < pixelsDiff) {
                 mCameraPreviewWidth = w;
@@ -396,12 +401,26 @@ public class WideAnglePanoramaModule
     }
 
     private void setupCaptureParams(Parameters parameters) {
+        boolean need4To3 = false;
+        boolean need16To9 = false;
         List<Size> supportedSizes = parameters.getSupportedPreviewSizes();
-        if (!findBestPreviewSize(supportedSizes, true, true)) {
-            Log.w(TAG, "No 4:3 ratio preview size supported.");
-            if (!findBestPreviewSize(supportedSizes, false, true)) {
+        Display mDisplay = mActivity.getWindowManager().getDefaultDisplay();
+        mScreenWidth  = mDisplay.getWidth();
+        mScreenHeight = mDisplay.getHeight();
+
+        if(mScreenHeight * 4 == mScreenWidth * 3) {
+            need4To3 = true;
+        }
+
+        if(mScreenHeight * 16 == mScreenWidth * 9) {
+            need16To9 = true;
+        }
+
+        if (!findBestPreviewSize(supportedSizes, need4To3, need16To9, true)) {
+            Log.w(TAG, "No preview size supported matching the screen aspect ratio");
+            if (!findBestPreviewSize(supportedSizes, false, false, true)) {
                 Log.w(TAG, "Can't find a supported preview size smaller than 960x720.");
-                findBestPreviewSize(supportedSizes, false, false);
+                findBestPreviewSize(supportedSizes, false, false, false);
             }
         }
         Log.d(TAG, "camera preview h = "
@@ -492,6 +511,9 @@ public class WideAnglePanoramaModule
         }
         mPreviewUIWidth = r - l;
         mPreviewUIHeight = b - t;
+        Parameters parameters = mCameraDevice.getParameters();
+        setupCaptureParams(parameters);
+        configureCamera(parameters);
         configMosaicPreview();
         if (capturePending == true){
             mMainHandler.post(new Runnable() {
-- 
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