diff --git a/include/ui/Input.h b/include/ui/Input.h
index 2012fcc..86ce098 100644
--- a/include/ui/Input.h
+++ b/include/ui/Input.h
@@ -28,6 +28,10 @@
 #include <utils/RefBase.h>
 #include <utils/String8.h>
 
+#ifdef HAVE_ANDROID_OS
+class SkMatrix;
+#endif
+
 /*
  * Additional private constants not defined in ndk/ui/input.h.
  */
@@ -79,6 +83,10 @@
 
 namespace android {
 
+#ifdef HAVE_ANDROID_OS
+class Parcel;
+#endif
+
 /*
  * Flags that flow alongside events in the input dispatch system to help with certain
  * policy decisions such as waking from device sleep.
@@ -162,15 +170,30 @@
  * Pointer coordinate data.
  */
 struct PointerCoords {
-    float x;
-    float y;
-    float pressure;
-    float size;
-    float touchMajor;
-    float touchMinor;
-    float toolMajor;
-    float toolMinor;
-    float orientation;
+    enum { MAX_AXES = 14 }; // 14 so that sizeof(PointerCoords) == 64
+
+    // Bitfield of axes that are present in this structure.
+    uint64_t bits;
+
+    // Values of axes that are stored in this structure packed in order by axis id
+    // for each axis that is present in the structure according to 'bits'.
+    float values[MAX_AXES];
+
+    inline void clear() {
+        bits = 0;
+    }
+
+    float getAxisValue(int32_t axis) const;
+    status_t setAxisValue(int32_t axis, float value);
+    float* editAxisValue(int32_t axis);
+
+#ifdef HAVE_ANDROID_OS
+    status_t readFromParcel(Parcel* parcel);
+    status_t writeToParcel(Parcel* parcel) const;
+#endif
+
+private:
+    void tooManyAxes(int axis);
 };
 
 /*
@@ -185,12 +208,13 @@
     inline int32_t getDeviceId() const { return mDeviceId; }
 
     inline int32_t getSource() const { return mSource; }
-    
+
+    inline void setSource(int32_t source) { mSource = source; }
+
 protected:
     void initialize(int32_t deviceId, int32_t source);
     void initialize(const InputEvent& from);
 
-private:
     int32_t mDeviceId;
     int32_t mSource;
 };
@@ -241,7 +265,7 @@
             nsecs_t eventTime);
     void initialize(const KeyEvent& from);
 
-private:
+protected:
     int32_t mAction;
     int32_t mFlags;
     int32_t mKeyCode;
@@ -263,12 +287,18 @@
 
     inline int32_t getAction() const { return mAction; }
 
+    inline void setAction(int32_t action) { mAction = action; }
+
     inline int32_t getFlags() const { return mFlags; }
 
     inline int32_t getEdgeFlags() const { return mEdgeFlags; }
 
+    inline void setEdgeFlags(int32_t edgeFlags) { mEdgeFlags = edgeFlags; }
+
     inline int32_t getMetaState() const { return mMetaState; }
 
+    inline void setMetaState(int32_t metaState) { mMetaState = metaState; }
+
     inline float getXOffset() const { return mXOffset; }
 
     inline float getYOffset() const { return mYOffset; }
@@ -285,48 +315,54 @@
 
     inline nsecs_t getEventTime() const { return mSampleEventTimes[getHistorySize()]; }
 
+    const PointerCoords* getRawPointerCoords(size_t pointerIndex) const;
+
+    float getRawAxisValue(int32_t axis, size_t pointerIndex) const;
+
     inline float getRawX(size_t pointerIndex) const {
-        return getCurrentPointerCoords(pointerIndex).x;
+        return getRawAxisValue(AMOTION_EVENT_AXIS_X, pointerIndex);
     }
 
     inline float getRawY(size_t pointerIndex) const {
-        return getCurrentPointerCoords(pointerIndex).y;
+        return getRawAxisValue(AMOTION_EVENT_AXIS_Y, pointerIndex);
     }
 
+    float getAxisValue(int32_t axis, size_t pointerIndex) const;
+
     inline float getX(size_t pointerIndex) const {
-        return getRawX(pointerIndex) + mXOffset;
+        return getAxisValue(AMOTION_EVENT_AXIS_X, pointerIndex);
     }
 
     inline float getY(size_t pointerIndex) const {
-        return getRawY(pointerIndex) + mYOffset;
+        return getAxisValue(AMOTION_EVENT_AXIS_Y, pointerIndex);
     }
 
     inline float getPressure(size_t pointerIndex) const {
-        return getCurrentPointerCoords(pointerIndex).pressure;
+        return getAxisValue(AMOTION_EVENT_AXIS_PRESSURE, pointerIndex);
     }
 
     inline float getSize(size_t pointerIndex) const {
-        return getCurrentPointerCoords(pointerIndex).size;
+        return getAxisValue(AMOTION_EVENT_AXIS_SIZE, pointerIndex);
     }
 
     inline float getTouchMajor(size_t pointerIndex) const {
-        return getCurrentPointerCoords(pointerIndex).touchMajor;
+        return getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, pointerIndex);
     }
 
     inline float getTouchMinor(size_t pointerIndex) const {
-        return getCurrentPointerCoords(pointerIndex).touchMinor;
+        return getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, pointerIndex);
     }
 
     inline float getToolMajor(size_t pointerIndex) const {
-        return getCurrentPointerCoords(pointerIndex).toolMajor;
+        return getAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, pointerIndex);
     }
 
     inline float getToolMinor(size_t pointerIndex) const {
-        return getCurrentPointerCoords(pointerIndex).toolMinor;
+        return getAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, pointerIndex);
     }
 
     inline float getOrientation(size_t pointerIndex) const {
-        return getCurrentPointerCoords(pointerIndex).orientation;
+        return getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, pointerIndex);
     }
 
     inline size_t getHistorySize() const { return mSampleEventTimes.size() - 1; }
@@ -335,48 +371,67 @@
         return mSampleEventTimes[historicalIndex];
     }
 
+    const PointerCoords* getHistoricalRawPointerCoords(
+            size_t pointerIndex, size_t historicalIndex) const;
+
+    float getHistoricalRawAxisValue(int32_t axis, size_t pointerIndex,
+            size_t historicalIndex) const;
+
     inline float getHistoricalRawX(size_t pointerIndex, size_t historicalIndex) const {
-        return getHistoricalPointerCoords(pointerIndex, historicalIndex).x;
+        return getHistoricalRawAxisValue(
+                AMOTION_EVENT_AXIS_X, pointerIndex, historicalIndex);
     }
 
     inline float getHistoricalRawY(size_t pointerIndex, size_t historicalIndex) const {
-        return getHistoricalPointerCoords(pointerIndex, historicalIndex).y;
+        return getHistoricalRawAxisValue(
+                AMOTION_EVENT_AXIS_Y, pointerIndex, historicalIndex);
     }
 
+    float getHistoricalAxisValue(int32_t axis, size_t pointerIndex, size_t historicalIndex) const;
+
     inline float getHistoricalX(size_t pointerIndex, size_t historicalIndex) const {
-        return getHistoricalRawX(pointerIndex, historicalIndex) + mXOffset;
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_X, pointerIndex, historicalIndex);
     }
 
     inline float getHistoricalY(size_t pointerIndex, size_t historicalIndex) const {
-        return getHistoricalRawY(pointerIndex, historicalIndex) + mYOffset;
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_Y, pointerIndex, historicalIndex);
     }
 
     inline float getHistoricalPressure(size_t pointerIndex, size_t historicalIndex) const {
-        return getHistoricalPointerCoords(pointerIndex, historicalIndex).pressure;
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_PRESSURE, pointerIndex, historicalIndex);
     }
 
     inline float getHistoricalSize(size_t pointerIndex, size_t historicalIndex) const {
-        return getHistoricalPointerCoords(pointerIndex, historicalIndex).size;
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_SIZE, pointerIndex, historicalIndex);
     }
 
     inline float getHistoricalTouchMajor(size_t pointerIndex, size_t historicalIndex) const {
-        return getHistoricalPointerCoords(pointerIndex, historicalIndex).touchMajor;
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_TOUCH_MAJOR, pointerIndex, historicalIndex);
     }
 
     inline float getHistoricalTouchMinor(size_t pointerIndex, size_t historicalIndex) const {
-        return getHistoricalPointerCoords(pointerIndex, historicalIndex).touchMinor;
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_TOUCH_MINOR, pointerIndex, historicalIndex);
     }
 
     inline float getHistoricalToolMajor(size_t pointerIndex, size_t historicalIndex) const {
-        return getHistoricalPointerCoords(pointerIndex, historicalIndex).toolMajor;
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_TOOL_MAJOR, pointerIndex, historicalIndex);
     }
 
     inline float getHistoricalToolMinor(size_t pointerIndex, size_t historicalIndex) const {
-        return getHistoricalPointerCoords(pointerIndex, historicalIndex).toolMinor;
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_TOOL_MINOR, pointerIndex, historicalIndex);
     }
 
     inline float getHistoricalOrientation(size_t pointerIndex, size_t historicalIndex) const {
-        return getHistoricalPointerCoords(pointerIndex, historicalIndex).orientation;
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_ORIENTATION, pointerIndex, historicalIndex);
     }
 
     void initialize(
@@ -396,12 +451,23 @@
             const int32_t* pointerIds,
             const PointerCoords* pointerCoords);
 
+    void copyFrom(const MotionEvent* other, bool keepHistory);
+
     void addSample(
             nsecs_t eventTime,
             const PointerCoords* pointerCoords);
 
     void offsetLocation(float xOffset, float yOffset);
 
+    void scale(float scaleFactor);
+
+#ifdef HAVE_ANDROID_OS
+    void transform(const SkMatrix* matrix);
+
+    status_t readFromParcel(Parcel* parcel);
+    status_t writeToParcel(Parcel* parcel) const;
+#endif
+
     // Low-level accessors.
     inline const int32_t* getPointerIds() const { return mPointerIds.array(); }
     inline const nsecs_t* getSampleEventTimes() const { return mSampleEventTimes.array(); }
@@ -409,7 +475,7 @@
             return mSamplePointerCoords.array();
     }
 
-private:
+protected:
     int32_t mAction;
     int32_t mFlags;
     int32_t mEdgeFlags;
@@ -422,15 +488,6 @@
     Vector<int32_t> mPointerIds;
     Vector<nsecs_t> mSampleEventTimes;
     Vector<PointerCoords> mSamplePointerCoords;
-
-    inline const PointerCoords& getCurrentPointerCoords(size_t pointerIndex) const {
-        return mSamplePointerCoords[getHistorySize() * getPointerCount() + pointerIndex];
-    }
-
-    inline const PointerCoords& getHistoricalPointerCoords(
-            size_t pointerIndex, size_t historicalIndex) const {
-        return mSamplePointerCoords[historicalIndex * getPointerCount() + pointerIndex];
-    }
 };
 
 /*
@@ -486,11 +543,11 @@
     inline const String8 getName() const { return mName; }
     inline uint32_t getSources() const { return mSources; }
 
-    const MotionRange* getMotionRange(int32_t rangeType) const;
+    const MotionRange* getMotionRange(int32_t axis) const;
 
     void addSource(uint32_t source);
-    void addMotionRange(int32_t rangeType, float min, float max, float flat, float fuzz);
-    void addMotionRange(int32_t rangeType, const MotionRange& range);
+    void addMotionRange(int32_t axis, float min, float max, float flat, float fuzz);
+    void addMotionRange(int32_t axis, const MotionRange& range);
 
     inline void setKeyboardType(int32_t keyboardType) { mKeyboardType = keyboardType; }
     inline int32_t getKeyboardType() const { return mKeyboardType; }
diff --git a/include/ui/KeyLayoutMap.h b/include/ui/KeyLayoutMap.h
index f0a6d00..904c8f3 100644
--- a/include/ui/KeyLayoutMap.h
+++ b/include/ui/KeyLayoutMap.h
@@ -25,7 +25,7 @@
 namespace android {
 
 /**
- * Describes a mapping from keyboard scan codes to Android key codes.
+ * Describes a mapping from keyboard scan codes and joystick axes to Android key codes and axes.
  */
 class KeyLayoutMap {
 public:
@@ -33,8 +33,10 @@
 
     static status_t load(const String8& filename, KeyLayoutMap** outMap);
 
-    status_t map(int32_t scanCode, int32_t* keyCode, uint32_t* flags) const;
-    status_t findScanCodes(int32_t keyCode, Vector<int32_t>* outScanCodes) const;
+    status_t mapKey(int32_t scanCode, int32_t* keyCode, uint32_t* flags) const;
+    status_t findScanCodesForKey(int32_t keyCode, Vector<int32_t>* outScanCodes) const;
+
+    status_t mapAxis(int32_t scanCode, int32_t* axis) const;
 
 private:
     struct Key {
@@ -42,7 +44,8 @@
         uint32_t flags;
     };
 
-    KeyedVector<int32_t,Key> mKeys;
+    KeyedVector<int32_t, Key> mKeys;
+    KeyedVector<int32_t, int32_t> mAxes;
 
     KeyLayoutMap();
 
@@ -57,6 +60,7 @@
 
     private:
         status_t parseKey();
+        status_t parseAxis();
     };
 };
 
diff --git a/include/ui/Keyboard.h b/include/ui/Keyboard.h
index 50296e2..54bc968 100644
--- a/include/ui/Keyboard.h
+++ b/include/ui/Keyboard.h
@@ -111,6 +111,18 @@
 extern uint32_t getKeyFlagByLabel(const char* label);
 
 /**
+ * Gets a axis by its short form label, eg. "X".
+ * Returns -1 if unknown.
+ */
+extern int32_t getAxisByLabel(const char* label);
+
+/**
+ * Gets a axis label by its id.
+ * Returns NULL if unknown.
+ */
+extern const char* getAxisLabel(int32_t axisId);
+
+/**
  * Updates a meta state field when a key is pressed or released.
  */
 extern int32_t updateMetaState(int32_t keyCode, bool down, int32_t oldMetaState);
diff --git a/include/ui/KeycodeLabels.h b/include/ui/KeycodeLabels.h
index dbccf29..bdfbf7c 100755
--- a/include/ui/KeycodeLabels.h
+++ b/include/ui/KeycodeLabels.h
@@ -250,4 +250,47 @@
     { NULL, 0 }
 };
 
+static const KeycodeLabel AXES[] = {
+    { "X", 0 },
+    { "Y", 1 },
+    { "PRESSURE", 2 },
+    { "SIZE", 3 },
+    { "TOUCH_MAJOR", 4 },
+    { "TOUCH_MINOR", 5 },
+    { "TOOL_MAJOR", 6 },
+    { "TOOL_MINOR", 7 },
+    { "ORIENTATION", 8 },
+    { "VSCROLL", 9 },
+    { "HSCROLL", 10 },
+    { "Z", 11 },
+    { "RX", 12 },
+    { "RY", 13 },
+    { "RZ", 14 },
+    { "HAT_X", 15 },
+    { "HAT_Y", 16 },
+    { "LTRIGGER", 17 },
+    { "RTRIGGER", 18 },
+    { "GENERIC_1", 32 },
+    { "GENERIC_2", 33 },
+    { "GENERIC_3", 34 },
+    { "GENERIC_4", 35 },
+    { "GENERIC_5", 36 },
+    { "GENERIC_6", 37 },
+    { "GENERIC_7", 38 },
+    { "GENERIC_8", 39 },
+    { "GENERIC_9", 40 },
+    { "GENERIC_10", 41 },
+    { "GENERIC_11", 42 },
+    { "GENERIC_12", 43 },
+    { "GENERIC_13", 44 },
+    { "GENERIC_14", 45 },
+    { "GENERIC_15", 46 },
+    { "GENERIC_16", 47 },
+
+    // NOTE: If you add a new axis here you must also add it to several other files.
+    //       Refer to frameworks/base/core/java/android/view/MotionEvent.java for the full list.
+
+    { NULL, -1 }
+};
+
 #endif // _UI_KEYCODE_LABELS_H
diff --git a/include/utils/RefBase.h b/include/utils/RefBase.h
index 9c64ac0..c24c0db 100644
--- a/include/utils/RefBase.h
+++ b/include/utils/RefBase.h
@@ -31,13 +31,10 @@
 
 // ---------------------------------------------------------------------------
 
-#define COMPARE(_op_)                                           \
+#define COMPARE_WEAK(_op_)                                      \
 inline bool operator _op_ (const sp<T>& o) const {              \
     return m_ptr _op_ o.m_ptr;                                  \
 }                                                               \
-inline bool operator _op_ (const wp<T>& o) const {              \
-    return m_ptr _op_ o.m_ptr;                                  \
-}                                                               \
 inline bool operator _op_ (const T* o) const {                  \
     return m_ptr _op_ o;                                        \
 }                                                               \
@@ -46,12 +43,18 @@
     return m_ptr _op_ o.m_ptr;                                  \
 }                                                               \
 template<typename U>                                            \
-inline bool operator _op_ (const wp<U>& o) const {              \
+inline bool operator _op_ (const U* o) const {                  \
+    return m_ptr _op_ o;                                        \
+}
+
+#define COMPARE(_op_)                                           \
+COMPARE_WEAK(_op_)                                              \
+inline bool operator _op_ (const wp<T>& o) const {              \
     return m_ptr _op_ o.m_ptr;                                  \
 }                                                               \
 template<typename U>                                            \
-inline bool operator _op_ (const U* o) const {                  \
-    return m_ptr _op_ o;                                        \
+inline bool operator _op_ (const wp<U>& o) const {              \
+    return m_ptr _op_ o.m_ptr;                                  \
 }
 
 // ---------------------------------------------------------------------------
@@ -274,13 +277,43 @@
     inline  T* unsafe_get() const { return m_ptr; }
 
     // Operators
-        
-    COMPARE(==)
-    COMPARE(!=)
-    COMPARE(>)
-    COMPARE(<)
-    COMPARE(<=)
-    COMPARE(>=)
+
+    COMPARE_WEAK(==)
+    COMPARE_WEAK(!=)
+    COMPARE_WEAK(>)
+    COMPARE_WEAK(<)
+    COMPARE_WEAK(<=)
+    COMPARE_WEAK(>=)
+
+    inline bool operator == (const wp<T>& o) const {
+        return (m_ptr == o.m_ptr) && (m_refs == o.m_refs);
+    }
+    template<typename U>
+    inline bool operator == (const wp<U>& o) const {
+        return m_ptr == o.m_ptr;
+    }
+
+    inline bool operator > (const wp<T>& o) const {
+        return (m_ptr == o.m_ptr) ? (m_refs > o.m_refs) : (m_ptr > o.m_ptr);
+    }
+    template<typename U>
+    inline bool operator > (const wp<U>& o) const {
+        return (m_ptr == o.m_ptr) ? (m_refs > o.m_refs) : (m_ptr > o.m_ptr);
+    }
+
+    inline bool operator < (const wp<T>& o) const {
+        return (m_ptr == o.m_ptr) ? (m_refs < o.m_refs) : (m_ptr < o.m_ptr);
+    }
+    template<typename U>
+    inline bool operator < (const wp<U>& o) const {
+        return (m_ptr == o.m_ptr) ? (m_refs < o.m_refs) : (m_ptr < o.m_ptr);
+    }
+                         inline bool operator != (const wp<T>& o) const { return m_refs != o.m_refs; }
+    template<typename U> inline bool operator != (const wp<U>& o) const { return !operator == (o); }
+                         inline bool operator <= (const wp<T>& o) const { return !operator > (o); }
+    template<typename U> inline bool operator <= (const wp<U>& o) const { return !operator > (o); }
+                         inline bool operator >= (const wp<T>& o) const { return !operator < (o); }
+    template<typename U> inline bool operator >= (const wp<U>& o) const { return !operator < (o); }
 
 private:
     template<typename Y> friend class sp;
@@ -294,6 +327,7 @@
 TextOutput& operator<<(TextOutput& to, const wp<T>& val);
 
 #undef COMPARE
+#undef COMPARE_WEAK
 
 // ---------------------------------------------------------------------------
 // No user serviceable parts below here.
diff --git a/libs/binder/MemoryHeapBase.cpp b/libs/binder/MemoryHeapBase.cpp
index 624f7eb..9f501e2 100644
--- a/libs/binder/MemoryHeapBase.cpp
+++ b/libs/binder/MemoryHeapBase.cpp
@@ -31,7 +31,7 @@
 
 #include <binder/MemoryHeapBase.h>
 
-#if HAVE_ANDROID_OS
+#ifdef HAVE_ANDROID_OS
 #include <linux/android_pmem.h>
 #endif
 
@@ -108,7 +108,7 @@
 {
     if (size == 0) {
         // try to figure out the size automatically
-#if HAVE_ANDROID_OS
+#ifdef HAVE_ANDROID_OS
         // first try the PMEM ioctl
         pmem_region reg;
         int err = ioctl(fd, PMEM_GET_TOTAL_SIZE, &reg);
diff --git a/libs/binder/MemoryHeapPmem.cpp b/libs/binder/MemoryHeapPmem.cpp
index 16e92f9..03322ea 100644
--- a/libs/binder/MemoryHeapPmem.cpp
+++ b/libs/binder/MemoryHeapPmem.cpp
@@ -30,7 +30,7 @@
 #include <binder/MemoryHeapPmem.h>
 #include <binder/MemoryHeapBase.h>
 
-#if HAVE_ANDROID_OS
+#ifdef HAVE_ANDROID_OS
 #include <linux/android_pmem.h>
 #endif
 
@@ -72,7 +72,7 @@
     memset(start_ptr, 0xda, size);
 #endif
 
-#if HAVE_ANDROID_OS
+#ifdef HAVE_ANDROID_OS
     if (size > 0) {
         const size_t pagesize = getpagesize();
         size = (size + pagesize-1) & ~(pagesize-1);
@@ -107,7 +107,7 @@
     // which means MemoryHeapPmem::revoke() wouldn't have been able to 
     // promote() it.
     
-#if HAVE_ANDROID_OS
+#ifdef HAVE_ANDROID_OS
     if (mSize != 0) {
         const sp<MemoryHeapPmem>& heap(getHeap());
         int our_fd = heap->heapID();
@@ -130,7 +130,7 @@
     : MemoryHeapBase()
 {
     char const * const device = pmemHeap->getDevice();
-#if HAVE_ANDROID_OS
+#ifdef HAVE_ANDROID_OS
     if (device) {
         int fd = open(device, O_RDWR | (flags & NO_CACHING ? O_SYNC : 0));
         LOGE_IF(fd<0, "couldn't open %s (%s)", device, strerror(errno));
@@ -187,7 +187,7 @@
 
 status_t MemoryHeapPmem::slap()
 {
-#if HAVE_ANDROID_OS
+#ifdef HAVE_ANDROID_OS
     size_t size = getSize();
     const size_t pagesize = getpagesize();
     size = (size + pagesize-1) & ~(pagesize-1);
@@ -205,7 +205,7 @@
 
 status_t MemoryHeapPmem::unslap()
 {
-#if HAVE_ANDROID_OS
+#ifdef HAVE_ANDROID_OS
     size_t size = getSize();
     const size_t pagesize = getpagesize();
     size = (size + pagesize-1) & ~(pagesize-1);
diff --git a/libs/gui/SurfaceTexture.cpp b/libs/gui/SurfaceTexture.cpp
index 6466f2b..223cf09 100644
--- a/libs/gui/SurfaceTexture.cpp
+++ b/libs/gui/SurfaceTexture.cpp
@@ -77,7 +77,8 @@
 
 SurfaceTexture::SurfaceTexture(GLuint tex) :
     mBufferCount(MIN_BUFFER_SLOTS), mCurrentTexture(INVALID_BUFFER_SLOT),
-    mLastQueued(INVALID_BUFFER_SLOT), mTexName(tex) {
+    mCurrentTransform(0), mLastQueued(INVALID_BUFFER_SLOT),
+    mLastQueuedTransform(0), mNextTransform(0), mTexName(tex) {
     LOGV("SurfaceTexture::SurfaceTexture");
     for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
         mSlots[i].mEglImage = EGL_NO_IMAGE_KHR;
diff --git a/libs/surfaceflinger_client/ISurfaceComposerClient.cpp b/libs/surfaceflinger_client/ISurfaceComposerClient.cpp
index 2cc1f8e..7730eb1 100644
--- a/libs/surfaceflinger_client/ISurfaceComposerClient.cpp
+++ b/libs/surfaceflinger_client/ISurfaceComposerClient.cpp
@@ -157,7 +157,7 @@
      const int pid = ipc->getCallingPid();
      const int uid = ipc->getCallingUid();
      const int self_pid = getpid();
-     if (UNLIKELY(pid != self_pid && uid != AID_GRAPHICS)) {
+     if (UNLIKELY(pid != self_pid && uid != AID_GRAPHICS && uid != 0)) {
          // we're called from a different process, do the real check
          if (!checkCallingPermission(
                  String16("android.permission.ACCESS_SURFACE_FLINGER")))
diff --git a/libs/ui/Android.mk b/libs/ui/Android.mk
index 0d55f08..f9990bb 100644
--- a/libs/ui/Android.mk
+++ b/libs/ui/Android.mk
@@ -60,7 +60,12 @@
 	libEGL \
 	libpixelflinger \
 	libhardware \
-	libhardware_legacy
+	libhardware_legacy \
+	libskia \
+	libbinder
+
+LOCAL_C_INCLUDES := \
+    external/skia/include/core
 
 LOCAL_MODULE:= libui
 
diff --git a/libs/ui/Input.cpp b/libs/ui/Input.cpp
index b8d59e6..a80320e 100644
--- a/libs/ui/Input.cpp
+++ b/libs/ui/Input.cpp
@@ -15,6 +15,16 @@
 
 #include <ui/Input.h>
 
+#include <math.h>
+
+#ifdef HAVE_ANDROID_OS
+#include <binder/Parcel.h>
+
+#include "SkPoint.h"
+#include "SkMatrix.h"
+#include "SkScalar.h"
+#endif
+
 namespace android {
 
 static const char* CONFIGURATION_FILE_DIR[] = {
@@ -237,6 +247,89 @@
     mEventTime = from.mEventTime;
 }
 
+
+// --- PointerCoords ---
+
+float PointerCoords::getAxisValue(int32_t axis) const {
+    if (axis < 0 || axis > 63) {
+        return 0;
+    }
+
+    uint64_t axisBit = 1LL << axis;
+    if (!(bits & axisBit)) {
+        return 0;
+    }
+    uint32_t index = __builtin_popcountll(bits & (axisBit - 1LL));
+    return values[index];
+}
+
+status_t PointerCoords::setAxisValue(int32_t axis, float value) {
+    if (axis < 0 || axis > 63) {
+        return NAME_NOT_FOUND;
+    }
+
+    uint64_t axisBit = 1LL << axis;
+    uint32_t index = __builtin_popcountll(bits & (axisBit - 1LL));
+    if (!(bits & axisBit)) {
+        uint32_t count = __builtin_popcountll(bits);
+        if (count >= MAX_AXES) {
+            tooManyAxes(axis);
+            return NO_MEMORY;
+        }
+        bits |= axisBit;
+        for (uint32_t i = count; i > index; i--) {
+            values[i] = values[i - 1];
+        }
+    }
+    values[index] = value;
+    return OK;
+}
+
+float* PointerCoords::editAxisValue(int32_t axis) {
+    if (axis < 0 || axis > 63) {
+        return NULL;
+    }
+
+    uint64_t axisBit = 1LL << axis;
+    if (!(bits & axisBit)) {
+        return NULL;
+    }
+    uint32_t index = __builtin_popcountll(bits & (axisBit - 1LL));
+    return &values[index];
+}
+
+#ifdef HAVE_ANDROID_OS
+status_t PointerCoords::readFromParcel(Parcel* parcel) {
+    bits = parcel->readInt64();
+
+    uint32_t count = __builtin_popcountll(bits);
+    if (count > MAX_AXES) {
+        return BAD_VALUE;
+    }
+
+    for (uint32_t i = 0; i < count; i++) {
+        values[i] = parcel->readInt32();
+    }
+    return OK;
+}
+
+status_t PointerCoords::writeToParcel(Parcel* parcel) const {
+    parcel->writeInt64(bits);
+
+    uint32_t count = __builtin_popcountll(bits);
+    for (uint32_t i = 0; i < count; i++) {
+        parcel->writeInt32(values[i]);
+    }
+    return OK;
+}
+#endif
+
+void PointerCoords::tooManyAxes(int axis) {
+    LOGW("Could not set value for axis %d because the PointerCoords structure is full and "
+            "cannot contain more than %d axis values.", axis, int(MAX_AXES));
+}
+
+
 // --- MotionEvent ---
 
 void MotionEvent::initialize(
@@ -272,6 +365,33 @@
     addSample(eventTime, pointerCoords);
 }
 
+void MotionEvent::copyFrom(const MotionEvent* other, bool keepHistory) {
+    InputEvent::initialize(other->mDeviceId, other->mSource);
+    mAction = other->mAction;
+    mFlags = other->mFlags;
+    mEdgeFlags = other->mEdgeFlags;
+    mMetaState = other->mMetaState;
+    mXOffset = other->mXOffset;
+    mYOffset = other->mYOffset;
+    mXPrecision = other->mXPrecision;
+    mYPrecision = other->mYPrecision;
+    mDownTime = other->mDownTime;
+    mPointerIds = other->mPointerIds;
+
+    if (keepHistory) {
+        mSampleEventTimes = other->mSampleEventTimes;
+        mSamplePointerCoords = other->mSamplePointerCoords;
+    } else {
+        mSampleEventTimes.clear();
+        mSampleEventTimes.push(other->getEventTime());
+        mSamplePointerCoords.clear();
+        size_t pointerCount = other->getPointerCount();
+        size_t historySize = other->getHistorySize();
+        mSamplePointerCoords.appendArray(other->mSamplePointerCoords.array()
+                + (historySize * pointerCount), pointerCount);
+    }
+}
+
 void MotionEvent::addSample(
         int64_t eventTime,
         const PointerCoords* pointerCoords) {
@@ -279,11 +399,224 @@
     mSamplePointerCoords.appendArray(pointerCoords, getPointerCount());
 }
 
+const PointerCoords* MotionEvent::getRawPointerCoords(size_t pointerIndex) const {
+    return &mSamplePointerCoords[getHistorySize() * getPointerCount() + pointerIndex];
+}
+
+float MotionEvent::getRawAxisValue(int32_t axis, size_t pointerIndex) const {
+    return getRawPointerCoords(pointerIndex)->getAxisValue(axis);
+}
+
+float MotionEvent::getAxisValue(int32_t axis, size_t pointerIndex) const {
+    float value = getRawPointerCoords(pointerIndex)->getAxisValue(axis);
+    switch (axis) {
+    case AMOTION_EVENT_AXIS_X:
+        value += mXOffset;
+        break;
+    case AMOTION_EVENT_AXIS_Y:
+        value += mYOffset;
+        break;
+    }
+    return value;
+}
+
+const PointerCoords* MotionEvent::getHistoricalRawPointerCoords(
+        size_t pointerIndex, size_t historicalIndex) const {
+    return &mSamplePointerCoords[historicalIndex * getPointerCount() + pointerIndex];
+}
+
+float MotionEvent::getHistoricalRawAxisValue(int32_t axis, size_t pointerIndex,
+        size_t historicalIndex) const {
+    return getHistoricalRawPointerCoords(pointerIndex, historicalIndex)->getAxisValue(axis);
+}
+
+float MotionEvent::getHistoricalAxisValue(int32_t axis, size_t pointerIndex,
+        size_t historicalIndex) const {
+    float value = getHistoricalRawPointerCoords(pointerIndex, historicalIndex)->getAxisValue(axis);
+    switch (axis) {
+    case AMOTION_EVENT_AXIS_X:
+        value += mXOffset;
+        break;
+    case AMOTION_EVENT_AXIS_Y:
+        value += mYOffset;
+        break;
+    }
+    return value;
+}
+
 void MotionEvent::offsetLocation(float xOffset, float yOffset) {
     mXOffset += xOffset;
     mYOffset += yOffset;
 }
 
+static inline void scaleAxisValue(PointerCoords& c, int axis, float scaleFactor) {
+    float* value = c.editAxisValue(axis);
+    if (value) {
+        *value *= scaleFactor;
+    }
+}
+
+void MotionEvent::scale(float scaleFactor) {
+    mXOffset *= scaleFactor;
+    mYOffset *= scaleFactor;
+    mXPrecision *= scaleFactor;
+    mYPrecision *= scaleFactor;
+
+    size_t numSamples = mSamplePointerCoords.size();
+    for (size_t i = 0; i < numSamples; i++) {
+        PointerCoords& c = mSamplePointerCoords.editItemAt(i);
+        // No need to scale pressure or size since they are normalized.
+        // No need to scale orientation since it is meaningless to do so.
+        scaleAxisValue(c, AMOTION_EVENT_AXIS_X, scaleFactor);
+        scaleAxisValue(c, AMOTION_EVENT_AXIS_Y, scaleFactor);
+        scaleAxisValue(c, AMOTION_EVENT_AXIS_TOUCH_MAJOR, scaleFactor);
+        scaleAxisValue(c, AMOTION_EVENT_AXIS_TOUCH_MINOR, scaleFactor);
+        scaleAxisValue(c, AMOTION_EVENT_AXIS_TOOL_MAJOR, scaleFactor);
+        scaleAxisValue(c, AMOTION_EVENT_AXIS_TOOL_MINOR, scaleFactor);
+    }
+}
+
+#ifdef HAVE_ANDROID_OS
+static inline float transformAngle(const SkMatrix* matrix, float angleRadians) {
+    // Construct and transform a vector oriented at the specified clockwise angle from vertical.
+    // Coordinate system: down is increasing Y, right is increasing X.
+    SkPoint vector;
+    vector.fX = SkFloatToScalar(sinf(angleRadians));
+    vector.fY = SkFloatToScalar(-cosf(angleRadians));
+    matrix->mapVectors(& vector, 1);
+
+    // Derive the transformed vector's clockwise angle from vertical.
+    float result = atan2f(SkScalarToFloat(vector.fX), SkScalarToFloat(-vector.fY));
+    if (result < - M_PI_2) {
+        result += M_PI;
+    } else if (result > M_PI_2) {
+        result -= M_PI;
+    }
+    return result;
+}
+
+void MotionEvent::transform(const SkMatrix* matrix) {
+    float oldXOffset = mXOffset;
+    float oldYOffset = mYOffset;
+
+    // The tricky part of this implementation is to preserve the value of
+    // rawX and rawY.  So we apply the transformation to the first point
+    // then derive an appropriate new X/Y offset that will preserve rawX and rawY.
+    SkPoint point;
+    float rawX = getRawX(0);
+    float rawY = getRawY(0);
+    matrix->mapXY(SkFloatToScalar(rawX + oldXOffset), SkFloatToScalar(rawY + oldYOffset),
+            & point);
+    float newX = SkScalarToFloat(point.fX);
+    float newY = SkScalarToFloat(point.fY);
+    float newXOffset = newX - rawX;
+    float newYOffset = newY - rawY;
+
+    mXOffset = newXOffset;
+    mYOffset = newYOffset;
+
+    // Apply the transformation to all samples.
+    size_t numSamples = mSamplePointerCoords.size();
+    for (size_t i = 0; i < numSamples; i++) {
+        PointerCoords& c = mSamplePointerCoords.editItemAt(i);
+        float* xPtr = c.editAxisValue(AMOTION_EVENT_AXIS_X);
+        float* yPtr = c.editAxisValue(AMOTION_EVENT_AXIS_Y);
+        if (xPtr && yPtr) {
+            float x = *xPtr + oldXOffset;
+            float y = *yPtr + oldYOffset;
+            matrix->mapXY(SkFloatToScalar(x), SkFloatToScalar(y), & point);
+            *xPtr = SkScalarToFloat(point.fX) - newXOffset;
+            *yPtr = SkScalarToFloat(point.fY) - newYOffset;
+        }
+
+        float* orientationPtr = c.editAxisValue(AMOTION_EVENT_AXIS_ORIENTATION);
+        if (orientationPtr) {
+            *orientationPtr = transformAngle(matrix, *orientationPtr);
+        }
+    }
+}
+
+status_t MotionEvent::readFromParcel(Parcel* parcel) {
+    size_t pointerCount = parcel->readInt32();
+    size_t sampleCount = parcel->readInt32();
+    if (pointerCount == 0 || pointerCount > MAX_POINTERS || sampleCount == 0) {
+        return BAD_VALUE;
+    }
+
+    mDeviceId = parcel->readInt32();
+    mSource = parcel->readInt32();
+    mAction = parcel->readInt32();
+    mFlags = parcel->readInt32();
+    mEdgeFlags = parcel->readInt32();
+    mMetaState = parcel->readInt32();
+    mXOffset = parcel->readFloat();
+    mYOffset = parcel->readFloat();
+    mXPrecision = parcel->readFloat();
+    mYPrecision = parcel->readFloat();
+    mDownTime = parcel->readInt64();
+
+    mPointerIds.clear();
+    mPointerIds.setCapacity(pointerCount);
+    mSampleEventTimes.clear();
+    mSampleEventTimes.setCapacity(sampleCount);
+    mSamplePointerCoords.clear();
+    mSamplePointerCoords.setCapacity(sampleCount * pointerCount);
+
+    for (size_t i = 0; i < pointerCount; i++) {
+        mPointerIds.push(parcel->readInt32());
+    }
+
+    while (sampleCount-- > 0) {
+        mSampleEventTimes.push(parcel->readInt64());
+        for (size_t i = 0; i < pointerCount; i++) {
+            mSamplePointerCoords.push();
+            status_t status = mSamplePointerCoords.editTop().readFromParcel(parcel);
+            if (status) {
+                return status;
+            }
+        }
+    }
+    return OK;
+}
+
+status_t MotionEvent::writeToParcel(Parcel* parcel) const {
+    size_t pointerCount = mPointerIds.size();
+    size_t sampleCount = mSampleEventTimes.size();
+
+    parcel->writeInt32(pointerCount);
+    parcel->writeInt32(sampleCount);
+
+    parcel->writeInt32(mDeviceId);
+    parcel->writeInt32(mSource);
+    parcel->writeInt32(mAction);
+    parcel->writeInt32(mFlags);
+    parcel->writeInt32(mEdgeFlags);
+    parcel->writeInt32(mMetaState);
+    parcel->writeFloat(mXOffset);
+    parcel->writeFloat(mYOffset);
+    parcel->writeFloat(mXPrecision);
+    parcel->writeFloat(mYPrecision);
+    parcel->writeInt64(mDownTime);
+
+    for (size_t i = 0; i < pointerCount; i++) {
+        parcel->writeInt32(mPointerIds.itemAt(i));
+    }
+
+    const PointerCoords* pc = mSamplePointerCoords.array();
+    for (size_t h = 0; h < sampleCount; h++) {
+        parcel->writeInt64(mSampleEventTimes.itemAt(h));
+        for (size_t i = 0; i < pointerCount; i++) {
+            status_t status = (pc++)->writeToParcel(parcel);
+            if (status) {
+                return status;
+            }
+        }
+    }
+    return OK;
+}
+#endif
+
+
 // --- InputDeviceInfo ---
 
 InputDeviceInfo::InputDeviceInfo() {
@@ -307,8 +640,8 @@
     mMotionRanges.clear();
 }
 
-const InputDeviceInfo::MotionRange* InputDeviceInfo::getMotionRange(int32_t rangeType) const {
-    ssize_t index = mMotionRanges.indexOfKey(rangeType);
+const InputDeviceInfo::MotionRange* InputDeviceInfo::getMotionRange(int32_t axis) const {
+    ssize_t index = mMotionRanges.indexOfKey(axis);
     return index >= 0 ? & mMotionRanges.valueAt(index) : NULL;
 }
 
@@ -316,14 +649,14 @@
     mSources |= source;
 }
 
-void InputDeviceInfo::addMotionRange(int32_t rangeType, float min, float max,
+void InputDeviceInfo::addMotionRange(int32_t axis, float min, float max,
         float flat, float fuzz) {
     MotionRange range = { min, max, flat, fuzz };
-    addMotionRange(rangeType, range);
+    addMotionRange(axis, range);
 }
 
-void InputDeviceInfo::addMotionRange(int32_t rangeType, const MotionRange& range) {
-    mMotionRanges.add(rangeType, range);
+void InputDeviceInfo::addMotionRange(int32_t axis, const MotionRange& range) {
+    mMotionRanges.add(axis, range);
 }
 
 } // namespace android
diff --git a/libs/ui/InputTransport.cpp b/libs/ui/InputTransport.cpp
index 83d9556..5c57a76 100644
--- a/libs/ui/InputTransport.cpp
+++ b/libs/ui/InputTransport.cpp
@@ -412,7 +412,8 @@
     // Cache essential information about the motion event to ensure that a malicious consumer
     // cannot confuse the publisher by modifying the contents of the shared memory buffer while
     // it is being updated.
-    if (action == AMOTION_EVENT_ACTION_MOVE) {
+    if (action == AMOTION_EVENT_ACTION_MOVE
+            || action == AMOTION_EVENT_ACTION_HOVER_MOVE) {
         mMotionEventPointerCount = pointerCount;
         mMotionEventSampleDataStride = InputMessage::sampleDataStride(pointerCount);
         mMotionEventSampleDataTail = InputMessage::sampleDataPtrIncrement(
diff --git a/libs/ui/KeyLayoutMap.cpp b/libs/ui/KeyLayoutMap.cpp
index 56bc26f..2ed0e66 100644
--- a/libs/ui/KeyLayoutMap.cpp
+++ b/libs/ui/KeyLayoutMap.cpp
@@ -82,11 +82,11 @@
     return status;
 }
 
-status_t KeyLayoutMap::map(int32_t scanCode, int32_t* keyCode, uint32_t* flags) const {
+status_t KeyLayoutMap::mapKey(int32_t scanCode, int32_t* keyCode, uint32_t* flags) const {
     ssize_t index = mKeys.indexOfKey(scanCode);
     if (index < 0) {
 #if DEBUG_MAPPING
-        LOGD("map: scanCode=%d ~ Failed.", scanCode);
+        LOGD("mapKey: scanCode=%d ~ Failed.", scanCode);
 #endif
         *keyCode = AKEYCODE_UNKNOWN;
         *flags = 0;
@@ -98,12 +98,12 @@
     *flags = k.flags;
 
 #if DEBUG_MAPPING
-    LOGD("map: scanCode=%d ~ Result keyCode=%d, flags=0x%08x.", scanCode, *keyCode, *flags);
+    LOGD("mapKey: scanCode=%d ~ Result keyCode=%d, flags=0x%08x.", scanCode, *keyCode, *flags);
 #endif
     return NO_ERROR;
 }
 
-status_t KeyLayoutMap::findScanCodes(int32_t keyCode, Vector<int32_t>* outScanCodes) const {
+status_t KeyLayoutMap::findScanCodesForKey(int32_t keyCode, Vector<int32_t>* outScanCodes) const {
     const size_t N = mKeys.size();
     for (size_t i=0; i<N; i++) {
         if (mKeys.valueAt(i).keyCode == keyCode) {
@@ -113,6 +113,25 @@
     return NO_ERROR;
 }
 
+status_t KeyLayoutMap::mapAxis(int32_t scanCode, int32_t* axis) const {
+    ssize_t index = mAxes.indexOfKey(scanCode);
+    if (index < 0) {
+#if DEBUG_MAPPING
+        LOGD("mapAxis: scanCode=%d ~ Failed.", scanCode);
+#endif
+        *axis = -1;
+        return NAME_NOT_FOUND;
+    }
+
+    *axis = mAxes.valueAt(index);
+
+#if DEBUG_MAPPING
+    LOGD("mapAxis: scanCode=%d ~ Result axis=%d.", scanCode, *axis);
+#endif
+    return NO_ERROR;
+}
+
+
 // --- KeyLayoutMap::Parser ---
 
 KeyLayoutMap::Parser::Parser(KeyLayoutMap* map, Tokenizer* tokenizer) :
@@ -137,6 +156,10 @@
                 mTokenizer->skipDelimiters(WHITESPACE);
                 status_t status = parseKey();
                 if (status) return status;
+            } else if (keywordToken == "axis") {
+                mTokenizer->skipDelimiters(WHITESPACE);
+                status_t status = parseAxis();
+                if (status) return status;
             } else {
                 LOGE("%s: Expected keyword, got '%s'.", mTokenizer->getLocation().string(),
                         keywordToken.string());
@@ -162,12 +185,12 @@
     char* end;
     int32_t scanCode = int32_t(strtol(scanCodeToken.string(), &end, 0));
     if (*end) {
-        LOGE("%s: Expected scan code number, got '%s'.", mTokenizer->getLocation().string(),
+        LOGE("%s: Expected key scan code number, got '%s'.", mTokenizer->getLocation().string(),
                 scanCodeToken.string());
         return BAD_VALUE;
     }
     if (mMap->mKeys.indexOfKey(scanCode) >= 0) {
-        LOGE("%s: Duplicate entry for scan code '%s'.", mTokenizer->getLocation().string(),
+        LOGE("%s: Duplicate entry for key scan code '%s'.", mTokenizer->getLocation().string(),
                 scanCodeToken.string());
         return BAD_VALUE;
     }
@@ -189,12 +212,12 @@
         String8 flagToken = mTokenizer->nextToken(WHITESPACE);
         uint32_t flag = getKeyFlagByLabel(flagToken.string());
         if (!flag) {
-            LOGE("%s: Expected flag label, got '%s'.", mTokenizer->getLocation().string(),
+            LOGE("%s: Expected key flag label, got '%s'.", mTokenizer->getLocation().string(),
                     flagToken.string());
             return BAD_VALUE;
         }
         if (flags & flag) {
-            LOGE("%s: Duplicate flag '%s'.", mTokenizer->getLocation().string(),
+            LOGE("%s: Duplicate key flag '%s'.", mTokenizer->getLocation().string(),
                     flagToken.string());
             return BAD_VALUE;
         }
@@ -211,4 +234,35 @@
     return NO_ERROR;
 }
 
+status_t KeyLayoutMap::Parser::parseAxis() {
+    String8 scanCodeToken = mTokenizer->nextToken(WHITESPACE);
+    char* end;
+    int32_t scanCode = int32_t(strtol(scanCodeToken.string(), &end, 0));
+    if (*end) {
+        LOGE("%s: Expected axis scan code number, got '%s'.", mTokenizer->getLocation().string(),
+                scanCodeToken.string());
+        return BAD_VALUE;
+    }
+    if (mMap->mAxes.indexOfKey(scanCode) >= 0) {
+        LOGE("%s: Duplicate entry for axis scan code '%s'.", mTokenizer->getLocation().string(),
+                scanCodeToken.string());
+        return BAD_VALUE;
+    }
+
+    mTokenizer->skipDelimiters(WHITESPACE);
+    String8 axisToken = mTokenizer->nextToken(WHITESPACE);
+    int32_t axis = getAxisByLabel(axisToken.string());
+    if (axis < 0) {
+        LOGE("%s: Expected axis label, got '%s'.", mTokenizer->getLocation().string(),
+                axisToken.string());
+        return BAD_VALUE;
+    }
+
+#if DEBUG_PARSER
+    LOGD("Parsed axis: scanCode=%d, axis=%d.", scanCode, axis);
+#endif
+    mMap->mAxes.add(scanCode, axis);
+    return NO_ERROR;
+}
+
 };
diff --git a/libs/ui/Keyboard.cpp b/libs/ui/Keyboard.cpp
index 6faa600..8b6300a 100644
--- a/libs/ui/Keyboard.cpp
+++ b/libs/ui/Keyboard.cpp
@@ -217,7 +217,7 @@
     return NAME_NOT_FOUND;
 }
 
-static int lookupLabel(const char* literal, const KeycodeLabel *list) {
+static int lookupValueByLabel(const char* literal, const KeycodeLabel *list) {
     while (list->literal) {
         if (strcmp(literal, list->literal) == 0) {
             return list->value;
@@ -227,12 +227,30 @@
     return list->value;
 }
 
+static const char* lookupLabelByValue(int value, const KeycodeLabel *list) {
+    while (list->literal) {
+        if (list->value == value) {
+            return list->literal;
+        }
+        list++;
+    }
+    return NULL;
+}
+
 int32_t getKeyCodeByLabel(const char* label) {
-    return int32_t(lookupLabel(label, KEYCODES));
+    return int32_t(lookupValueByLabel(label, KEYCODES));
 }
 
 uint32_t getKeyFlagByLabel(const char* label) {
-    return uint32_t(lookupLabel(label, FLAGS));
+    return uint32_t(lookupValueByLabel(label, FLAGS));
+}
+
+int32_t getAxisByLabel(const char* label) {
+    return int32_t(lookupValueByLabel(label, AXES));
+}
+
+const char* getAxisLabel(int32_t axisId) {
+    return lookupLabelByValue(axisId, AXES);
 }
 
 static int32_t setEphemeralMetaState(int32_t mask, bool down, int32_t oldMetaState) {
diff --git a/libs/ui/tests/Android.mk b/libs/ui/tests/Android.mk
index 580d73c..e231971 100644
--- a/libs/ui/tests/Android.mk
+++ b/libs/ui/tests/Android.mk
@@ -7,6 +7,7 @@
 # Build the unit tests.
 test_src_files := \
     InputChannel_test.cpp \
+    InputEvent_test.cpp \
     InputPublisherAndConsumer_test.cpp
 
 shared_libraries := \
@@ -18,7 +19,8 @@
 	libhardware \
 	libhardware_legacy \
 	libui \
-	libstlport
+	libstlport \
+	libskia
 
 static_libraries := \
 	libgtest \
@@ -28,7 +30,8 @@
     bionic \
     bionic/libstdc++/include \
     external/gtest/include \
-    external/stlport/stlport
+    external/stlport/stlport \
+    external/skia/include/core
 
 module_tags := eng tests
 
diff --git a/libs/ui/tests/InputChannel_test.cpp b/libs/ui/tests/InputChannel_test.cpp
index 6cec1c0..eff22ee 100644
--- a/libs/ui/tests/InputChannel_test.cpp
+++ b/libs/ui/tests/InputChannel_test.cpp
@@ -1,6 +1,18 @@
-//
-// Copyright 2010 The Android Open Source Project
-//
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
 #include <ui/InputTransport.h>
 #include <utils/Timers.h>
diff --git a/libs/ui/tests/InputEvent_test.cpp b/libs/ui/tests/InputEvent_test.cpp
new file mode 100644
index 0000000..b77489e
--- /dev/null
+++ b/libs/ui/tests/InputEvent_test.cpp
@@ -0,0 +1,582 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <ui/Input.h>
+#include <gtest/gtest.h>
+#include <binder/Parcel.h>
+
+#include <math.h>
+#include <SkMatrix.h>
+
+namespace android {
+
+class BaseTest : public testing::Test {
+protected:
+    virtual void SetUp() { }
+    virtual void TearDown() { }
+};
+
+// --- PointerCoordsTest ---
+
+class PointerCoordsTest : public BaseTest {
+};
+
+TEST_F(PointerCoordsTest, ClearSetsBitsToZero) {
+    PointerCoords coords;
+    coords.clear();
+
+    ASSERT_EQ(0ULL, coords.bits);
+}
+
+TEST_F(PointerCoordsTest, AxisValues) {
+    float* valuePtr;
+    PointerCoords coords;
+    coords.clear();
+
+    // Check invariants when no axes are present.
+    ASSERT_EQ(0, coords.getAxisValue(0))
+            << "getAxisValue should return zero because axis is not present";
+    ASSERT_EQ(0, coords.getAxisValue(1))
+            << "getAxisValue should return zero because axis is not present";
+
+    ASSERT_EQ(NULL, coords.editAxisValue(0))
+            << "editAxisValue should return null because axis is not present";
+
+    // Set first axis.
+    ASSERT_EQ(OK, coords.setAxisValue(1, 5));
+    ASSERT_EQ(0x00000002ULL, coords.bits);
+    ASSERT_EQ(5, coords.values[0]);
+
+    ASSERT_EQ(0, coords.getAxisValue(0))
+            << "getAxisValue should return zero because axis is not present";
+    ASSERT_EQ(5, coords.getAxisValue(1))
+            << "getAxisValue should return value of axis";
+
+    // Set an axis with a higher id than all others.  (appending value at the end)
+    ASSERT_EQ(OK, coords.setAxisValue(3, 2));
+    ASSERT_EQ(0x0000000aULL, coords.bits);
+    ASSERT_EQ(5, coords.values[0]);
+    ASSERT_EQ(2, coords.values[1]);
+
+    ASSERT_EQ(0, coords.getAxisValue(0))
+            << "getAxisValue should return zero because axis is not present";
+    ASSERT_EQ(5, coords.getAxisValue(1))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(0, coords.getAxisValue(2))
+            << "getAxisValue should return zero because axis is not present";
+    ASSERT_EQ(2, coords.getAxisValue(3))
+            << "getAxisValue should return value of axis";
+
+    // Set an axis with an id lower than all others.  (prepending value at beginning)
+    ASSERT_EQ(OK, coords.setAxisValue(0, 4));
+    ASSERT_EQ(0x0000000bULL, coords.bits);
+    ASSERT_EQ(4, coords.values[0]);
+    ASSERT_EQ(5, coords.values[1]);
+    ASSERT_EQ(2, coords.values[2]);
+
+    ASSERT_EQ(4, coords.getAxisValue(0))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(5, coords.getAxisValue(1))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(0, coords.getAxisValue(2))
+            << "getAxisValue should return zero because axis is not present";
+    ASSERT_EQ(2, coords.getAxisValue(3))
+            << "getAxisValue should return value of axis";
+
+    // Edit an existing axis value in place.
+    valuePtr = coords.editAxisValue(1);
+    ASSERT_EQ(5, *valuePtr)
+            << "editAxisValue should return pointer to axis value";
+
+    *valuePtr = 7;
+    ASSERT_EQ(7, coords.getAxisValue(1))
+            << "getAxisValue should return value of axis";
+
+    // Set an axis with an id between the others.  (inserting value in the middle)
+    ASSERT_EQ(OK, coords.setAxisValue(2, 1));
+    ASSERT_EQ(0x0000000fULL, coords.bits);
+    ASSERT_EQ(4, coords.values[0]);
+    ASSERT_EQ(7, coords.values[1]);
+    ASSERT_EQ(1, coords.values[2]);
+    ASSERT_EQ(2, coords.values[3]);
+
+    ASSERT_EQ(4, coords.getAxisValue(0))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(7, coords.getAxisValue(1))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(1, coords.getAxisValue(2))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(2, coords.getAxisValue(3))
+            << "getAxisValue should return value of axis";
+
+    // Set an existing axis value in place.
+    ASSERT_EQ(OK, coords.setAxisValue(1, 6));
+    ASSERT_EQ(0x0000000fULL, coords.bits);
+    ASSERT_EQ(4, coords.values[0]);
+    ASSERT_EQ(6, coords.values[1]);
+    ASSERT_EQ(1, coords.values[2]);
+    ASSERT_EQ(2, coords.values[3]);
+
+    ASSERT_EQ(4, coords.getAxisValue(0))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(6, coords.getAxisValue(1))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(1, coords.getAxisValue(2))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(2, coords.getAxisValue(3))
+            << "getAxisValue should return value of axis";
+
+    // Set maximum number of axes.
+    for (size_t axis = 4; axis < PointerCoords::MAX_AXES; axis++) {
+        ASSERT_EQ(OK, coords.setAxisValue(axis, axis));
+    }
+    ASSERT_EQ(PointerCoords::MAX_AXES, __builtin_popcountll(coords.bits));
+
+    // Try to set one more axis beyond maximum number.
+    // Ensure bits are unchanged.
+    ASSERT_EQ(NO_MEMORY, coords.setAxisValue(PointerCoords::MAX_AXES, 100));
+    ASSERT_EQ(PointerCoords::MAX_AXES, __builtin_popcountll(coords.bits));
+}
+
+TEST_F(PointerCoordsTest, Parcel) {
+    Parcel parcel;
+
+    PointerCoords inCoords;
+    inCoords.clear();
+    PointerCoords outCoords;
+
+    // Round trip with empty coords.
+    inCoords.writeToParcel(&parcel);
+    parcel.setDataPosition(0);
+    outCoords.readFromParcel(&parcel);
+
+    ASSERT_EQ(0ULL, outCoords.bits);
+
+    // Round trip with some values.
+    parcel.freeData();
+    inCoords.setAxisValue(2, 5);
+    inCoords.setAxisValue(5, 8);
+
+    inCoords.writeToParcel(&parcel);
+    parcel.setDataPosition(0);
+    outCoords.readFromParcel(&parcel);
+
+    ASSERT_EQ(outCoords.bits, inCoords.bits);
+    ASSERT_EQ(outCoords.values[0], inCoords.values[0]);
+    ASSERT_EQ(outCoords.values[1], inCoords.values[1]);
+}
+
+
+// --- KeyEventTest ---
+
+class KeyEventTest : public BaseTest {
+};
+
+TEST_F(KeyEventTest, Properties) {
+    KeyEvent event;
+
+    // Initialize and get properties.
+    const nsecs_t ARBITRARY_DOWN_TIME = 1;
+    const nsecs_t ARBITRARY_EVENT_TIME = 2;
+    event.initialize(2, AINPUT_SOURCE_GAMEPAD, AKEY_EVENT_ACTION_DOWN,
+            AKEY_EVENT_FLAG_FROM_SYSTEM, AKEYCODE_BUTTON_X, 121,
+            AMETA_ALT_ON, 1, ARBITRARY_DOWN_TIME, ARBITRARY_EVENT_TIME);
+
+    ASSERT_EQ(AINPUT_EVENT_TYPE_KEY, event.getType());
+    ASSERT_EQ(2, event.getDeviceId());
+    ASSERT_EQ(AINPUT_SOURCE_GAMEPAD, event.getSource());
+    ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, event.getAction());
+    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM, event.getFlags());
+    ASSERT_EQ(AKEYCODE_BUTTON_X, event.getKeyCode());
+    ASSERT_EQ(121, event.getScanCode());
+    ASSERT_EQ(AMETA_ALT_ON, event.getMetaState());
+    ASSERT_EQ(1, event.getRepeatCount());
+    ASSERT_EQ(ARBITRARY_DOWN_TIME, event.getDownTime());
+    ASSERT_EQ(ARBITRARY_EVENT_TIME, event.getEventTime());
+
+    // Set source.
+    event.setSource(AINPUT_SOURCE_JOYSTICK);
+    ASSERT_EQ(AINPUT_SOURCE_JOYSTICK, event.getSource());
+}
+
+
+// --- MotionEventTest ---
+
+class MotionEventTest : public BaseTest {
+protected:
+    static const nsecs_t ARBITRARY_DOWN_TIME;
+    static const nsecs_t ARBITRARY_EVENT_TIME;
+    static const float X_OFFSET;
+    static const float Y_OFFSET;
+
+    void initializeEventWithHistory(MotionEvent* event);
+    void assertEqualsEventWithHistory(const MotionEvent* event);
+};
+
+const nsecs_t MotionEventTest::ARBITRARY_DOWN_TIME = 1;
+const nsecs_t MotionEventTest::ARBITRARY_EVENT_TIME = 2;
+const float MotionEventTest::X_OFFSET = 1.0f;
+const float MotionEventTest::Y_OFFSET = 1.1f;
+
+void MotionEventTest::initializeEventWithHistory(MotionEvent* event) {
+    int32_t pointerIds[] = { 1, 2 };
+    PointerCoords pointerCoords[2];
+    pointerCoords[0].clear();
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_X, 10);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_Y, 11);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 12);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_SIZE, 13);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, 14);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, 15);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 16);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, 17);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 18);
+    pointerCoords[1].clear();
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_X, 20);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_Y, 21);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 22);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_SIZE, 23);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, 24);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, 25);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 26);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, 27);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 28);
+    event->initialize(2, AINPUT_SOURCE_TOUCHSCREEN, AMOTION_EVENT_ACTION_MOVE,
+            AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED,
+            AMOTION_EVENT_EDGE_FLAG_TOP, AMETA_ALT_ON,
+            X_OFFSET, Y_OFFSET, 2.0f, 2.1f,
+            ARBITRARY_DOWN_TIME, ARBITRARY_EVENT_TIME,
+            2, pointerIds, pointerCoords);
+
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_X, 110);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_Y, 111);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 112);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_SIZE, 113);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, 114);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, 115);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 116);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, 117);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 118);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_X, 120);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_Y, 121);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 122);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_SIZE, 123);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, 124);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, 125);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 126);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, 127);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 128);
+    event->addSample(ARBITRARY_EVENT_TIME + 1, pointerCoords);
+
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_X, 210);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_Y, 211);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 212);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_SIZE, 213);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, 214);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, 215);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 216);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, 217);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 218);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_X, 220);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_Y, 221);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 222);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_SIZE, 223);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, 224);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, 225);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 226);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, 227);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 228);
+    event->addSample(ARBITRARY_EVENT_TIME + 2, pointerCoords);
+}
+
+void MotionEventTest::assertEqualsEventWithHistory(const MotionEvent* event) {
+    // Check properties.
+    ASSERT_EQ(AINPUT_EVENT_TYPE_MOTION, event->getType());
+    ASSERT_EQ(2, event->getDeviceId());
+    ASSERT_EQ(AINPUT_SOURCE_TOUCHSCREEN, event->getSource());
+    ASSERT_EQ(AMOTION_EVENT_ACTION_MOVE, event->getAction());
+    ASSERT_EQ(AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED, event->getFlags());
+    ASSERT_EQ(AMOTION_EVENT_EDGE_FLAG_TOP, event->getEdgeFlags());
+    ASSERT_EQ(AMETA_ALT_ON, event->getMetaState());
+    ASSERT_EQ(X_OFFSET, event->getXOffset());
+    ASSERT_EQ(Y_OFFSET, event->getYOffset());
+    ASSERT_EQ(2.0f, event->getXPrecision());
+    ASSERT_EQ(2.1f, event->getYPrecision());
+    ASSERT_EQ(ARBITRARY_DOWN_TIME, event->getDownTime());
+
+    ASSERT_EQ(2U, event->getPointerCount());
+    ASSERT_EQ(1, event->getPointerId(0));
+    ASSERT_EQ(2, event->getPointerId(1));
+
+    ASSERT_EQ(2U, event->getHistorySize());
+
+    // Check data.
+    ASSERT_EQ(ARBITRARY_EVENT_TIME, event->getHistoricalEventTime(0));
+    ASSERT_EQ(ARBITRARY_EVENT_TIME + 1, event->getHistoricalEventTime(1));
+    ASSERT_EQ(ARBITRARY_EVENT_TIME + 2, event->getEventTime());
+
+    ASSERT_EQ(11, event->getHistoricalRawPointerCoords(0, 0)->
+            getAxisValue(AMOTION_EVENT_AXIS_Y));
+    ASSERT_EQ(21, event->getHistoricalRawPointerCoords(1, 0)->
+            getAxisValue(AMOTION_EVENT_AXIS_Y));
+    ASSERT_EQ(111, event->getHistoricalRawPointerCoords(0, 1)->
+            getAxisValue(AMOTION_EVENT_AXIS_Y));
+    ASSERT_EQ(121, event->getHistoricalRawPointerCoords(1, 1)->
+            getAxisValue(AMOTION_EVENT_AXIS_Y));
+    ASSERT_EQ(211, event->getRawPointerCoords(0)->
+            getAxisValue(AMOTION_EVENT_AXIS_Y));
+    ASSERT_EQ(221, event->getRawPointerCoords(1)->
+            getAxisValue(AMOTION_EVENT_AXIS_Y));
+
+    ASSERT_EQ(11, event->getHistoricalRawAxisValue(AMOTION_EVENT_AXIS_Y, 0, 0));
+    ASSERT_EQ(21, event->getHistoricalRawAxisValue(AMOTION_EVENT_AXIS_Y, 1, 0));
+    ASSERT_EQ(111, event->getHistoricalRawAxisValue(AMOTION_EVENT_AXIS_Y, 0, 1));
+    ASSERT_EQ(121, event->getHistoricalRawAxisValue(AMOTION_EVENT_AXIS_Y, 1, 1));
+    ASSERT_EQ(211, event->getRawAxisValue(AMOTION_EVENT_AXIS_Y, 0));
+    ASSERT_EQ(221, event->getRawAxisValue(AMOTION_EVENT_AXIS_Y, 1));
+
+    ASSERT_EQ(10, event->getHistoricalRawX(0, 0));
+    ASSERT_EQ(20, event->getHistoricalRawX(1, 0));
+    ASSERT_EQ(110, event->getHistoricalRawX(0, 1));
+    ASSERT_EQ(120, event->getHistoricalRawX(1, 1));
+    ASSERT_EQ(210, event->getRawX(0));
+    ASSERT_EQ(220, event->getRawX(1));
+
+    ASSERT_EQ(11, event->getHistoricalRawY(0, 0));
+    ASSERT_EQ(21, event->getHistoricalRawY(1, 0));
+    ASSERT_EQ(111, event->getHistoricalRawY(0, 1));
+    ASSERT_EQ(121, event->getHistoricalRawY(1, 1));
+    ASSERT_EQ(211, event->getRawY(0));
+    ASSERT_EQ(221, event->getRawY(1));
+
+    ASSERT_EQ(X_OFFSET + 10, event->getHistoricalX(0, 0));
+    ASSERT_EQ(X_OFFSET + 20, event->getHistoricalX(1, 0));
+    ASSERT_EQ(X_OFFSET + 110, event->getHistoricalX(0, 1));
+    ASSERT_EQ(X_OFFSET + 120, event->getHistoricalX(1, 1));
+    ASSERT_EQ(X_OFFSET + 210, event->getX(0));
+    ASSERT_EQ(X_OFFSET + 220, event->getX(1));
+
+    ASSERT_EQ(Y_OFFSET + 11, event->getHistoricalY(0, 0));
+    ASSERT_EQ(Y_OFFSET + 21, event->getHistoricalY(1, 0));
+    ASSERT_EQ(Y_OFFSET + 111, event->getHistoricalY(0, 1));
+    ASSERT_EQ(Y_OFFSET + 121, event->getHistoricalY(1, 1));
+    ASSERT_EQ(Y_OFFSET + 211, event->getY(0));
+    ASSERT_EQ(Y_OFFSET + 221, event->getY(1));
+
+    ASSERT_EQ(12, event->getHistoricalPressure(0, 0));
+    ASSERT_EQ(22, event->getHistoricalPressure(1, 0));
+    ASSERT_EQ(112, event->getHistoricalPressure(0, 1));
+    ASSERT_EQ(122, event->getHistoricalPressure(1, 1));
+    ASSERT_EQ(212, event->getPressure(0));
+    ASSERT_EQ(222, event->getPressure(1));
+
+    ASSERT_EQ(13, event->getHistoricalSize(0, 0));
+    ASSERT_EQ(23, event->getHistoricalSize(1, 0));
+    ASSERT_EQ(113, event->getHistoricalSize(0, 1));
+    ASSERT_EQ(123, event->getHistoricalSize(1, 1));
+    ASSERT_EQ(213, event->getSize(0));
+    ASSERT_EQ(223, event->getSize(1));
+
+    ASSERT_EQ(14, event->getHistoricalTouchMajor(0, 0));
+    ASSERT_EQ(24, event->getHistoricalTouchMajor(1, 0));
+    ASSERT_EQ(114, event->getHistoricalTouchMajor(0, 1));
+    ASSERT_EQ(124, event->getHistoricalTouchMajor(1, 1));
+    ASSERT_EQ(214, event->getTouchMajor(0));
+    ASSERT_EQ(224, event->getTouchMajor(1));
+
+    ASSERT_EQ(15, event->getHistoricalTouchMinor(0, 0));
+    ASSERT_EQ(25, event->getHistoricalTouchMinor(1, 0));
+    ASSERT_EQ(115, event->getHistoricalTouchMinor(0, 1));
+    ASSERT_EQ(125, event->getHistoricalTouchMinor(1, 1));
+    ASSERT_EQ(215, event->getTouchMinor(0));
+    ASSERT_EQ(225, event->getTouchMinor(1));
+
+    ASSERT_EQ(16, event->getHistoricalToolMajor(0, 0));
+    ASSERT_EQ(26, event->getHistoricalToolMajor(1, 0));
+    ASSERT_EQ(116, event->getHistoricalToolMajor(0, 1));
+    ASSERT_EQ(126, event->getHistoricalToolMajor(1, 1));
+    ASSERT_EQ(216, event->getToolMajor(0));
+    ASSERT_EQ(226, event->getToolMajor(1));
+
+    ASSERT_EQ(17, event->getHistoricalToolMinor(0, 0));
+    ASSERT_EQ(27, event->getHistoricalToolMinor(1, 0));
+    ASSERT_EQ(117, event->getHistoricalToolMinor(0, 1));
+    ASSERT_EQ(127, event->getHistoricalToolMinor(1, 1));
+    ASSERT_EQ(217, event->getToolMinor(0));
+    ASSERT_EQ(227, event->getToolMinor(1));
+
+    ASSERT_EQ(18, event->getHistoricalOrientation(0, 0));
+    ASSERT_EQ(28, event->getHistoricalOrientation(1, 0));
+    ASSERT_EQ(118, event->getHistoricalOrientation(0, 1));
+    ASSERT_EQ(128, event->getHistoricalOrientation(1, 1));
+    ASSERT_EQ(218, event->getOrientation(0));
+    ASSERT_EQ(228, event->getOrientation(1));
+}
+
+TEST_F(MotionEventTest, Properties) {
+    MotionEvent event;
+
+    // Initialize, add samples and check properties.
+    initializeEventWithHistory(&event);
+    ASSERT_NO_FATAL_FAILURE(assertEqualsEventWithHistory(&event));
+
+    // Set source.
+    event.setSource(AINPUT_SOURCE_JOYSTICK);
+    ASSERT_EQ(AINPUT_SOURCE_JOYSTICK, event.getSource());
+
+    // Set action.
+    event.setAction(AMOTION_EVENT_ACTION_CANCEL);
+    ASSERT_EQ(AMOTION_EVENT_ACTION_CANCEL, event.getAction());
+
+    // Set meta state.
+    event.setMetaState(AMETA_CTRL_ON);
+    ASSERT_EQ(AMETA_CTRL_ON, event.getMetaState());
+}
+
+TEST_F(MotionEventTest, CopyFrom_KeepHistory) {
+    MotionEvent event;
+    initializeEventWithHistory(&event);
+
+    MotionEvent copy;
+    copy.copyFrom(&event, true /*keepHistory*/);
+
+    ASSERT_NO_FATAL_FAILURE(assertEqualsEventWithHistory(&event));
+}
+
+TEST_F(MotionEventTest, CopyFrom_DoNotKeepHistory) {
+    MotionEvent event;
+    initializeEventWithHistory(&event);
+
+    MotionEvent copy;
+    copy.copyFrom(&event, false /*keepHistory*/);
+
+    ASSERT_EQ(event.getPointerCount(), copy.getPointerCount());
+    ASSERT_EQ(0U, copy.getHistorySize());
+
+    ASSERT_EQ(event.getPointerId(0), copy.getPointerId(0));
+    ASSERT_EQ(event.getPointerId(1), copy.getPointerId(1));
+
+    ASSERT_EQ(event.getEventTime(), copy.getEventTime());
+
+    ASSERT_EQ(event.getX(0), copy.getX(0));
+}
+
+TEST_F(MotionEventTest, OffsetLocation) {
+    MotionEvent event;
+    initializeEventWithHistory(&event);
+
+    event.offsetLocation(5.0f, -2.0f);
+
+    ASSERT_EQ(X_OFFSET + 5.0f, event.getXOffset());
+    ASSERT_EQ(Y_OFFSET - 2.0f, event.getYOffset());
+}
+
+TEST_F(MotionEventTest, Scale) {
+    MotionEvent event;
+    initializeEventWithHistory(&event);
+
+    event.scale(2.0f);
+
+    ASSERT_EQ(X_OFFSET * 2, event.getXOffset());
+    ASSERT_EQ(Y_OFFSET * 2, event.getYOffset());
+
+    ASSERT_EQ(210 * 2, event.getRawX(0));
+    ASSERT_EQ(211 * 2, event.getRawY(0));
+    ASSERT_EQ((X_OFFSET + 210) * 2, event.getX(0));
+    ASSERT_EQ((Y_OFFSET + 211) * 2, event.getY(0));
+    ASSERT_EQ(212, event.getPressure(0));
+    ASSERT_EQ(213, event.getSize(0));
+    ASSERT_EQ(214 * 2, event.getTouchMajor(0));
+    ASSERT_EQ(215 * 2, event.getTouchMinor(0));
+    ASSERT_EQ(216 * 2, event.getToolMajor(0));
+    ASSERT_EQ(217 * 2, event.getToolMinor(0));
+    ASSERT_EQ(218, event.getOrientation(0));
+}
+
+TEST_F(MotionEventTest, Parcel) {
+    Parcel parcel;
+
+    MotionEvent inEvent;
+    initializeEventWithHistory(&inEvent);
+    MotionEvent outEvent;
+
+    // Round trip.
+    inEvent.writeToParcel(&parcel);
+    parcel.setDataPosition(0);
+    outEvent.readFromParcel(&parcel);
+
+    ASSERT_NO_FATAL_FAILURE(assertEqualsEventWithHistory(&outEvent));
+}
+
+TEST_F(MotionEventTest, Transform) {
+    // Generate some points on a circle.
+    // Each point 'i' is a point on a circle of radius ROTATION centered at (3,2) at an angle
+    // of ARC * i degrees clockwise relative to the Y axis.
+    // The geometrical representation is irrelevant to the test, it's just easy to generate
+    // and check rotation.  We set the orientation to the same angle.
+    // Coordinate system: down is increasing Y, right is increasing X.
+    const float PI_180 = float(M_PI / 180);
+    const float RADIUS = 10;
+    const float ARC = 36;
+    const float ROTATION = ARC * 2;
+
+    const size_t pointerCount = 11;
+    int pointerIds[pointerCount];
+    PointerCoords pointerCoords[pointerCount];
+    for (size_t i = 0; i < pointerCount; i++) {
+        float angle = float(i * ARC * PI_180);
+        pointerIds[i] = i;
+        pointerCoords[i].clear();
+        pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_X, sinf(angle) * RADIUS + 3);
+        pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_Y, -cosf(angle) * RADIUS + 2);
+        pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, angle);
+    }
+    MotionEvent event;
+    event.initialize(0, 0, AMOTION_EVENT_ACTION_MOVE, 0, 0, 0,
+            0, 0, 0, 0, 0, 0, pointerCount, pointerIds, pointerCoords);
+    float originalRawX = 0 + 3;
+    float originalRawY = -RADIUS + 2;
+
+    // Check original raw X and Y assumption.
+    ASSERT_NEAR(originalRawX, event.getRawX(0), 0.001);
+    ASSERT_NEAR(originalRawY, event.getRawY(0), 0.001);
+
+    // Now translate the motion event so the circle's origin is at (0,0).
+    event.offsetLocation(-3, -2);
+
+    // Offsetting the location should preserve the raw X and Y of the first point.
+    ASSERT_NEAR(originalRawX, event.getRawX(0), 0.001);
+    ASSERT_NEAR(originalRawY, event.getRawY(0), 0.001);
+
+    // Apply a rotation about the origin by ROTATION degrees clockwise.
+    SkMatrix matrix;
+    matrix.setRotate(ROTATION);
+    event.transform(&matrix);
+
+    // Check the points.
+    for (size_t i = 0; i < pointerCount; i++) {
+        float angle = float((i * ARC + ROTATION) * PI_180);
+        ASSERT_NEAR(sinf(angle) * RADIUS, event.getX(i), 0.001);
+        ASSERT_NEAR(-cosf(angle) * RADIUS, event.getY(i), 0.001);
+        ASSERT_NEAR(tanf(angle), tanf(event.getOrientation(i)), 0.1);
+    }
+
+    // Applying the transformation should preserve the raw X and Y of the first point.
+    ASSERT_NEAR(originalRawX, event.getRawX(0), 0.001);
+    ASSERT_NEAR(originalRawY, event.getRawY(0), 0.001);
+}
+
+} // namespace android
diff --git a/libs/ui/tests/InputPublisherAndConsumer_test.cpp b/libs/ui/tests/InputPublisherAndConsumer_test.cpp
index 903fcaf..6e18a4f 100644
--- a/libs/ui/tests/InputPublisherAndConsumer_test.cpp
+++ b/libs/ui/tests/InputPublisherAndConsumer_test.cpp
@@ -1,6 +1,18 @@
-//
-// Copyright 2010 The Android Open Source Project
-//
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
 #include <ui/InputTransport.h>
 #include <utils/Timers.h>
@@ -159,15 +171,17 @@
         sampleEventTimes.push(i + 10);
         for (size_t j = 0; j < pointerCount; j++) {
             samplePointerCoords.push();
-            samplePointerCoords.editTop().x = 100 * i + j;
-            samplePointerCoords.editTop().y = 200 * i + j;
-            samplePointerCoords.editTop().pressure = 0.5 * i + j;
-            samplePointerCoords.editTop().size = 0.7 * i + j;
-            samplePointerCoords.editTop().touchMajor = 1.5 * i + j;
-            samplePointerCoords.editTop().touchMinor = 1.7 * i + j;
-            samplePointerCoords.editTop().toolMajor = 2.5 * i + j;
-            samplePointerCoords.editTop().toolMinor = 2.7 * i + j;
-            samplePointerCoords.editTop().orientation = 3.5 * i + j;
+            PointerCoords& pc = samplePointerCoords.editTop();
+            pc.clear();
+            pc.setAxisValue(AMOTION_EVENT_AXIS_X, 100 * i + j);
+            pc.setAxisValue(AMOTION_EVENT_AXIS_Y, 200 * i + j);
+            pc.setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 0.5 * i + j);
+            pc.setAxisValue(AMOTION_EVENT_AXIS_SIZE, 0.7 * i + j);
+            pc.setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, 1.5 * i + j);
+            pc.setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, 1.7 * i + j);
+            pc.setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 2.5 * i + j);
+            pc.setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 2.7 * i + j);
+            pc.setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 3.5 * i + j);
         }
     }
 
@@ -239,27 +253,27 @@
         for (size_t i = 0; i < pointerCount; i++) {
             SCOPED_TRACE(i);
             size_t offset = sampleIndex * pointerCount + i;
-            EXPECT_EQ(samplePointerCoords[offset].x,
+            EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_X),
                     motionEvent->getHistoricalRawX(i, sampleIndex));
-            EXPECT_EQ(samplePointerCoords[offset].y,
+            EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_Y),
                     motionEvent->getHistoricalRawY(i, sampleIndex));
-            EXPECT_EQ(samplePointerCoords[offset].x + xOffset,
+            EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_X) + xOffset,
                     motionEvent->getHistoricalX(i, sampleIndex));
-            EXPECT_EQ(samplePointerCoords[offset].y + yOffset,
+            EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_Y) + yOffset,
                     motionEvent->getHistoricalY(i, sampleIndex));
-            EXPECT_EQ(samplePointerCoords[offset].pressure,
+            EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_PRESSURE),
                     motionEvent->getHistoricalPressure(i, sampleIndex));
-            EXPECT_EQ(samplePointerCoords[offset].size,
+            EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_SIZE),
                     motionEvent->getHistoricalSize(i, sampleIndex));
-            EXPECT_EQ(samplePointerCoords[offset].touchMajor,
+            EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR),
                     motionEvent->getHistoricalTouchMajor(i, sampleIndex));
-            EXPECT_EQ(samplePointerCoords[offset].touchMinor,
+            EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR),
                     motionEvent->getHistoricalTouchMinor(i, sampleIndex));
-            EXPECT_EQ(samplePointerCoords[offset].toolMajor,
+            EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR),
                     motionEvent->getHistoricalToolMajor(i, sampleIndex));
-            EXPECT_EQ(samplePointerCoords[offset].toolMinor,
+            EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR),
                     motionEvent->getHistoricalToolMinor(i, sampleIndex));
-            EXPECT_EQ(samplePointerCoords[offset].orientation,
+            EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION),
                     motionEvent->getHistoricalOrientation(i, sampleIndex));
         }
     }
@@ -269,17 +283,28 @@
     for (size_t i = 0; i < pointerCount; i++) {
         SCOPED_TRACE(i);
         size_t offset = lastSampleIndex * pointerCount + i;
-        EXPECT_EQ(samplePointerCoords[offset].x, motionEvent->getRawX(i));
-        EXPECT_EQ(samplePointerCoords[offset].y, motionEvent->getRawY(i));
-        EXPECT_EQ(samplePointerCoords[offset].x + xOffset, motionEvent->getX(i));
-        EXPECT_EQ(samplePointerCoords[offset].y + yOffset, motionEvent->getY(i));
-        EXPECT_EQ(samplePointerCoords[offset].pressure, motionEvent->getPressure(i));
-        EXPECT_EQ(samplePointerCoords[offset].size, motionEvent->getSize(i));
-        EXPECT_EQ(samplePointerCoords[offset].touchMajor, motionEvent->getTouchMajor(i));
-        EXPECT_EQ(samplePointerCoords[offset].touchMinor, motionEvent->getTouchMinor(i));
-        EXPECT_EQ(samplePointerCoords[offset].toolMajor, motionEvent->getToolMajor(i));
-        EXPECT_EQ(samplePointerCoords[offset].toolMinor, motionEvent->getToolMinor(i));
-        EXPECT_EQ(samplePointerCoords[offset].orientation, motionEvent->getOrientation(i));
+        EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_X),
+                motionEvent->getRawX(i));
+        EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_Y),
+                motionEvent->getRawY(i));
+        EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_X) + xOffset,
+                motionEvent->getX(i));
+        EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_Y) + yOffset,
+                motionEvent->getY(i));
+        EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_PRESSURE),
+                motionEvent->getPressure(i));
+        EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_SIZE),
+                motionEvent->getSize(i));
+        EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR),
+                motionEvent->getTouchMajor(i));
+        EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR),
+                motionEvent->getTouchMinor(i));
+        EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR),
+                motionEvent->getToolMajor(i));
+        EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR),
+                motionEvent->getToolMinor(i));
+        EXPECT_EQ(samplePointerCoords[offset].getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION),
+                motionEvent->getOrientation(i));
     }
 
     status = mConsumer->sendFinishedSignal(false);
@@ -328,7 +353,8 @@
 
     const size_t pointerCount = 1;
     int32_t pointerIds[pointerCount] = { 0 };
-    PointerCoords pointerCoords[pointerCount] = { { 0, 0, 0, 0, 0, 0, 0, 0, 0 } };
+    PointerCoords pointerCoords[pointerCount];
+    pointerCoords[0].clear();
 
     status = mPublisher->publishMotionEvent(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
             pointerCount, pointerIds, pointerCoords);
diff --git a/libs/utils/SystemClock.cpp b/libs/utils/SystemClock.cpp
index 2bdc0ce..062e6d7 100644
--- a/libs/utils/SystemClock.cpp
+++ b/libs/utils/SystemClock.cpp
@@ -19,7 +19,7 @@
  * System clock functions.
  */
 
-#if HAVE_ANDROID_OS
+#ifdef HAVE_ANDROID_OS
 #include <linux/ioctl.h>
 #include <linux/rtc.h>
 #include <utils/Atomic.h>
@@ -50,7 +50,7 @@
     return -1;
 #else
     struct timeval tv;
-#if HAVE_ANDROID_OS
+#ifdef HAVE_ANDROID_OS
     struct timespec ts;
     int fd;
     int res;
@@ -66,7 +66,7 @@
 
     LOGD("Setting time of day to sec=%d\n", (int) tv.tv_sec);
 
-#if HAVE_ANDROID_OS
+#ifdef HAVE_ANDROID_OS
     fd = open("/dev/alarm", O_RDWR);
     if(fd < 0) {
         LOGW("Unable to open alarm driver: %s\n", strerror(errno));
@@ -106,7 +106,7 @@
  */
 int64_t elapsedRealtime()
 {
-#if HAVE_ANDROID_OS
+#ifdef HAVE_ANDROID_OS
     static int s_fd = -1;
 
     if (s_fd == -1) {
diff --git a/libs/utils/Threads.cpp b/libs/utils/Threads.cpp
index b1bd828..35dcbcb 100644
--- a/libs/utils/Threads.cpp
+++ b/libs/utils/Threads.cpp
@@ -739,7 +739,7 @@
     wp<Thread> weak(strong);
     self->mHoldSelf.clear();
 
-#if HAVE_ANDROID_OS
+#ifdef HAVE_ANDROID_OS
     // this is very useful for debugging with gdb
     self->mTid = gettid();
 #endif
diff --git a/opengl/libs/EGL/egl.cpp b/opengl/libs/EGL/egl.cpp
index 3dc8c03..3d5a4d1 100644
--- a/opengl/libs/EGL/egl.cpp
+++ b/opengl/libs/EGL/egl.cpp
@@ -22,7 +22,7 @@
 
 #include <sys/ioctl.h>
 
-#if HAVE_ANDROID_OS
+#ifdef HAVE_ANDROID_OS
 #include <linux/android_pmem.h>
 #endif
 
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index fde8e67..0f7d639 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -142,7 +142,8 @@
 
 sp<LayerBaseClient::Surface> Layer::createSurface() const
 {
-    return mSurface;
+    sp<Surface> sur(new SurfaceLayer(mFlinger, const_cast<Layer *>(this)));
+    return sur;
 }
 
 status_t Layer::ditch()
@@ -152,9 +153,6 @@
     // the layer is not on screen anymore. free as much resources as possible
     mFreezeLock.clear();
 
-    // Free our own reference to ISurface
-    mSurface.clear();
-
     Mutex::Autolock _l(mLock);
     mWidth = mHeight = 0;
     return NO_ERROR;
@@ -202,7 +200,6 @@
     int layerRedsize = info.getSize(PixelFormatInfo::INDEX_RED);
     mNeedsDithering = layerRedsize > displayRedSize;
 
-    mSurface = new SurfaceLayer(mFlinger, this);
     return NO_ERROR;
 }
 
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index d9a8be3..2b38414 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -213,7 +213,6 @@
     ClientRef mUserClientRef;
 
     // constants
-    sp<Surface> mSurface;
     PixelFormat mFormat;
     const GLExtensions& mGLExtensions;
     bool mNeedsBlending;
diff --git a/services/surfaceflinger/LayerBase.cpp b/services/surfaceflinger/LayerBase.cpp
index 86057f8..6025ed4 100644
--- a/services/surfaceflinger/LayerBase.cpp
+++ b/services/surfaceflinger/LayerBase.cpp
@@ -540,7 +540,9 @@
 
 LayerBaseClient::LayerBaseClient(SurfaceFlinger* flinger, DisplayID display,
         const sp<Client>& client)
-    : LayerBase(flinger, display), mClientRef(client),
+    : LayerBase(flinger, display),
+      mHasSurface(false),
+      mClientRef(client),
       mIdentity(uint32_t(android_atomic_inc(&sIdentity)))
 {
 }
@@ -557,12 +559,13 @@
 {
     sp<Surface> s;
     Mutex::Autolock _l(mLock);
-    s = mClientSurface.promote();
-    if (s == 0) {
-        s = createSurface();
-        mClientSurface = s;
-        mClientSurfaceBinder = s->asBinder();
-    }
+
+    LOG_ALWAYS_FATAL_IF(mHasSurface,
+            "LayerBaseClient::getSurface() has already been called");
+
+    mHasSurface = true;
+    s = createSurface();
+    mClientSurfaceBinder = s->asBinder();
     return s;
 }
 
diff --git a/services/surfaceflinger/LayerBase.h b/services/surfaceflinger/LayerBase.h
index 184edd7..bfe92e6 100644
--- a/services/surfaceflinger/LayerBase.h
+++ b/services/surfaceflinger/LayerBase.h
@@ -337,7 +337,7 @@
 
 private:
     mutable Mutex mLock;
-    mutable wp<Surface> mClientSurface;
+    mutable bool mHasSurface;
     wp<IBinder> mClientSurfaceBinder;
     const wp<Client> mClientRef;
     // only read