SnapdragonCamera: Enable low power mode in Camera.

Enable low power mode in camera usecase as well. Earlier its enabled
only in camcorder mode.

One exception in camera usecase where LPM is disabled is when flip
(preview/snapshot/video) is enabled.

Change-Id: I3e391345cac64b3dd8b7156fc98a806f4626d110

1 files changed, 23 insertions, 0 deletions

diff --git a/src/com/android/camera/PhotoModule.java b/src/com/android/camera/PhotoModule.java
index 72e0f3f4d..f0bb158e1 100644
--- a/src/com/android/camera/PhotoModule.java
+++ b/src/com/android/camera/PhotoModule.java
@@ -357,6 +357,9 @@ public class PhotoModule
     private int mJpegFileSizeEstimation = 0;
     private int mRemainingPhotos = -1;
 
+    //settings, which if enabled, need to turn off low power mode
+    private boolean mIsFlipEnabled = false;
+
     private MediaSaveService.OnMediaSavedListener mOnMediaSavedListener =
             new MediaSaveService.OnMediaSavedListener() {
                 @Override
@@ -1853,6 +1856,7 @@ public class PhotoModule
             Log.v(TAG, "onOrientationChanged, update parameters");
             if (mParameters != null && mCameraDevice != null) {
                 setFlipValue();
+                updatePowerMode();
                 mCameraDevice.setParameters(mParameters);
             }
             mUI.setOrientation(mOrientation, true);
@@ -3181,6 +3185,8 @@ public class PhotoModule
             String fMode = Parameters.FLASH_MODE_OFF;
             mParameters.setFlashMode(fMode);
         }
+
+        updatePowerMode();
     }
 
     private int estimateJpegFileSize(final Size size, final String quality) {
@@ -3243,6 +3249,12 @@ public class PhotoModule
         if(CameraUtil.isSupported(picture_flip, CameraSettings.getSupportedFlipMode(mParameters))){
             mParameters.set(CameraSettings.KEY_QC_SNAPSHOT_PICTURE_FLIP, picture_flip);
         }
+
+        if ((preview_flip_value != 0) || (video_flip_value != 0) || (picture_flip_value != 0)) {
+            mIsFlipEnabled = true;
+        } else {
+            mIsFlipEnabled = false;
+        }
     }
 
     @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
@@ -4300,6 +4312,17 @@ public class PhotoModule
     public boolean isRefocus() {
         return mLastPhotoTakenWithRefocus;
     }
+
+    private void updatePowerMode() {
+        String lpmSupported = mParameters.get("low-power-mode-supported");
+        if ((lpmSupported != null) && "true".equals(lpmSupported)) {
+            if (!mIsFlipEnabled) {
+                mParameters.set("low-power-mode", "enable");
+            } else {
+                mParameters.set("low-power-mode", "disable");
+            }
+        }
+    }
 }
 
 /* Below is no longer needed, except to get rid of compile error