From c559299ddc350be60621e99c9f7fac5ee440c909 Mon Sep 17 00:00:00 2001
From: Likai Ding <likaid@codeaurora.org>
Date: Tue, 8 Jul 2014 15:16:27 +0800
Subject: SnapdragonCamera: Make panorama frame size configurable

For low RAM devices, allow reduction of the panorama frame size to
save memory via the 'panorama_frame_size_reduction' config option.

Change-Id: I26b98699341d5eedfe2ebe8a6ed417fe62933bd5
CRs-Fixed: 669381
---
 res/values/config.xml                               |  4 ++++
 src/com/android/camera/WideAnglePanoramaModule.java | 12 ++++++++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/res/values/config.xml b/res/values/config.xml
index 33e1e146b..24f790c4e 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -19,4 +19,8 @@
 <resources>
     <!-- Maximum recording length in milliseconds. 0 means unlimited. -->
     <integer name="max_video_recording_length">0</integer>
+
+    <!-- This value may be tweaked to save memory on low RAM devices. The value
+         is the percentage of camera preview height/width to scale to. -->
+    <integer name="panorama_frame_size_reduction">100</integer>
 </resources>
diff --git a/src/com/android/camera/WideAnglePanoramaModule.java b/src/com/android/camera/WideAnglePanoramaModule.java
index 225981808..4594b2ac6 100644
--- a/src/com/android/camera/WideAnglePanoramaModule.java
+++ b/src/com/android/camera/WideAnglePanoramaModule.java
@@ -16,6 +16,7 @@
 
 package com.android.camera;
 
+import android.app.ActivityManager;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
@@ -811,8 +812,15 @@ public class WideAnglePanoramaModule
             return;
         }
 
-        mMosaicFrameProcessor.initialize(
-                mCameraPreviewWidth, mCameraPreviewHeight, getPreviewBufSize());
+        int perct = 100;
+        final ActivityManager am = (ActivityManager)
+                mActivity.getSystemService(Context.ACTIVITY_SERVICE);
+        if (am.isLowRamDevice()) {
+            perct = mActivity.getResources().getInteger(R.integer.panorama_frame_size_reduction);
+        }
+
+        mMosaicFrameProcessor.initialize(mCameraPreviewWidth * perct / 100,
+                mCameraPreviewHeight * perct / 100, getPreviewBufSize());
         mMosaicFrameProcessorInitialized = true;
     }
 
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