diff --git a/libs/ui/Android.bp b/libs/ui/Android.bp
index 8795322..d9cfed7 100644
--- a/libs/ui/Android.bp
+++ b/libs/ui/Android.bp
@@ -91,6 +91,8 @@
         "libnativebase_headers",
     ],
 
+    export_include_dirs: ["include"],
+
     export_static_lib_headers: [
         "libarect",
         "libmath",
diff --git a/libs/ui/include/ui/ANativeObjectBase.h b/libs/ui/include/ui/ANativeObjectBase.h
new file mode 100644
index 0000000..e9d5d8d
--- /dev/null
+++ b/libs/ui/include/ui/ANativeObjectBase.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#ifndef ANDROID_ANDROID_NATIVES_H
+#define ANDROID_ANDROID_NATIVES_H
+
+#include <sys/types.h>
+
+#include <nativebase/nativebase.h>
+
+
+/*****************************************************************************/
+
+#ifdef __cplusplus
+
+#include <utils/RefBase.h>
+
+namespace android {
+
+/*
+ * This helper class turns a ANativeXXX object type into a C++
+ * reference-counted object; with proper type conversions.
+ */
+template <typename NATIVE_TYPE, typename TYPE, typename REF,
+        typename NATIVE_BASE = android_native_base_t>
+class ANativeObjectBase : public NATIVE_TYPE, public REF
+{
+public:
+    // Disambiguate between the incStrong in REF and NATIVE_TYPE
+    void incStrong(const void* id) const {
+        REF::incStrong(id);
+    }
+    void decStrong(const void* id) const {
+        REF::decStrong(id);
+    }
+
+protected:
+    typedef ANativeObjectBase<NATIVE_TYPE, TYPE, REF, NATIVE_BASE> BASE;
+    ANativeObjectBase() : NATIVE_TYPE(), REF() {
+        NATIVE_TYPE::common.incRef = incRef;
+        NATIVE_TYPE::common.decRef = decRef;
+    }
+    static inline TYPE* getSelf(NATIVE_TYPE* self) {
+        return static_cast<TYPE*>(self);
+    }
+    static inline TYPE const* getSelf(NATIVE_TYPE const* self) {
+        return static_cast<TYPE const *>(self);
+    }
+    static inline TYPE* getSelf(NATIVE_BASE* base) {
+        return getSelf(reinterpret_cast<NATIVE_TYPE*>(base));
+    }
+    static inline TYPE const * getSelf(NATIVE_BASE const* base) {
+        return getSelf(reinterpret_cast<NATIVE_TYPE const*>(base));
+    }
+    static void incRef(NATIVE_BASE* base) {
+        ANativeObjectBase* self = getSelf(base);
+        self->incStrong(self);
+    }
+    static void decRef(NATIVE_BASE* base) {
+        ANativeObjectBase* self = getSelf(base);
+        self->decStrong(self);
+    }
+};
+
+} // namespace android
+#endif // __cplusplus
+
+/*****************************************************************************/
+
+#endif /* ANDROID_ANDROID_NATIVES_H */
diff --git a/libs/ui/include/ui/BufferQueueDefs.h b/libs/ui/include/ui/BufferQueueDefs.h
new file mode 100644
index 0000000..56de181
--- /dev/null
+++ b/libs/ui/include/ui/BufferQueueDefs.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2017 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.
+ */
+
+#ifndef ANDROID_UI_BUFFERQUEUEDEFS_H
+#define ANDROID_UI_BUFFERQUEUEDEFS_H
+
+namespace android {
+    namespace BufferQueueDefs {
+        // BufferQueue will keep track of at most this value of buffers.
+        // Attempts at runtime to increase the number of buffers past this
+        // will fail.
+        static constexpr int NUM_BUFFER_SLOTS = 64;
+    } // namespace BufferQueueDefs
+} // namespace android
+
+#endif
diff --git a/libs/ui/include/ui/ColorSpace.h b/libs/ui/include/ui/ColorSpace.h
new file mode 100644
index 0000000..8ccf6d3
--- /dev/null
+++ b/libs/ui/include/ui/ColorSpace.h
@@ -0,0 +1,305 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#ifndef ANDROID_UI_COLOR_SPACE
+#define ANDROID_UI_COLOR_SPACE
+
+#include <array>
+#include <cmath>
+#include <functional>
+#include <memory>
+#include <string>
+
+#include <math/mat3.h>
+#include <math/scalar.h>
+#include <math/vec2.h>
+#include <math/vec3.h>
+
+namespace android {
+
+class ColorSpace {
+public:
+    typedef std::function<float(float)> transfer_function;
+    typedef std::function<float(float)> clamping_function;
+
+    struct TransferParameters {
+        float g = 0.0f;
+        float a = 0.0f;
+        float b = 0.0f;
+        float c = 0.0f;
+        float d = 0.0f;
+        float e = 0.0f;
+        float f = 0.0f;
+    };
+
+    /**
+     * Creates a named color space with the specified RGB->XYZ
+     * conversion matrix. The white point and primaries will be
+     * computed from the supplied matrix.
+     *
+     * The default transfer functions are a linear response x->x
+     * and the default clamping function is a simple saturate
+     * (clamp(x, 0, 1)).
+     */
+    ColorSpace(
+            const std::string& name,
+            const mat3& rgbToXYZ,
+            transfer_function OETF = linearResponse,
+            transfer_function EOTF = linearResponse,
+            clamping_function clamper = saturate<float>
+    ) noexcept;
+
+    /**
+     * Creates a named color space with the specified RGB->XYZ
+     * conversion matrix. The white point and primaries will be
+     * computed from the supplied matrix.
+     *
+     * The transfer functions are defined by the set of supplied
+     * transfer parameters. The default clamping function is a
+     * simple saturate (clamp(x, 0, 1)).
+     */
+    ColorSpace(
+            const std::string& name,
+            const mat3& rgbToXYZ,
+            const TransferParameters parameters,
+            clamping_function clamper = saturate<float>
+    ) noexcept;
+
+    /**
+     * Creates a named color space with the specified RGB->XYZ
+     * conversion matrix. The white point and primaries will be
+     * computed from the supplied matrix.
+     *
+     * The transfer functions are defined by a simple gamma value.
+     * The default clamping function is a saturate (clamp(x, 0, 1)).
+     */
+    ColorSpace(
+            const std::string& name,
+            const mat3& rgbToXYZ,
+            float gamma,
+            clamping_function clamper = saturate<float>
+    ) noexcept;
+
+    /**
+     * Creates a named color space with the specified primaries
+     * and white point. The RGB<>XYZ conversion matrices are
+     * computed from the primaries and white point.
+     *
+     * The default transfer functions are a linear response x->x
+     * and the default clamping function is a simple saturate
+     * (clamp(x, 0, 1)).
+     */
+    ColorSpace(
+            const std::string& name,
+            const std::array<float2, 3>& primaries,
+            const float2& whitePoint,
+            transfer_function OETF = linearResponse,
+            transfer_function EOTF = linearResponse,
+            clamping_function clamper = saturate<float>
+    ) noexcept;
+
+    /**
+     * Creates a named color space with the specified primaries
+     * and white point. The RGB<>XYZ conversion matrices are
+     * computed from the primaries and white point.
+     *
+     * The transfer functions are defined by the set of supplied
+     * transfer parameters. The default clamping function is a
+     * simple saturate (clamp(x, 0, 1)).
+     */
+    ColorSpace(
+            const std::string& name,
+            const std::array<float2, 3>& primaries,
+            const float2& whitePoint,
+            const TransferParameters parameters,
+            clamping_function clamper = saturate<float>
+    ) noexcept;
+
+    /**
+     * Creates a named color space with the specified primaries
+     * and white point. The RGB<>XYZ conversion matrices are
+     * computed from the primaries and white point.
+     *
+     * The transfer functions are defined by a single gamma value.
+     * The default clamping function is a saturate (clamp(x, 0, 1)).
+     */
+    ColorSpace(
+            const std::string& name,
+            const std::array<float2, 3>& primaries,
+            const float2& whitePoint,
+            float gamma,
+            clamping_function clamper = saturate<float>
+    ) noexcept;
+
+    ColorSpace() noexcept = delete;
+
+    /**
+     * Encodes the supplied RGB value using this color space's
+     * opto-electronic transfer function.
+     */
+    constexpr float3 fromLinear(const float3& v) const noexcept {
+        return apply(v, mOETF);
+    }
+
+    /**
+     * Decodes the supplied RGB value using this color space's
+     * electro-optical transfer function.
+     */
+    constexpr float3 toLinear(const float3& v) const noexcept {
+        return apply(v, mEOTF);
+    }
+
+    /**
+     * Converts the supplied XYZ value to RGB. The returned value
+     * is encoded with this color space's opto-electronic transfer
+     * function and clamped by this color space's clamping function.
+     */
+    constexpr float3 xyzToRGB(const float3& xyz) const noexcept {
+        return apply(fromLinear(mXYZtoRGB * xyz), mClamper);
+    }
+
+    /**
+     * Converts the supplied RGB value to XYZ. The input RGB value
+     * is decoded using this color space's electro-optical function
+     * before being converted to XYZ.
+     */
+    constexpr float3 rgbToXYZ(const float3& rgb) const noexcept {
+        return mRGBtoXYZ * toLinear(rgb);
+    }
+
+    constexpr const std::string& getName() const noexcept {
+        return mName;
+    }
+
+    constexpr const mat3& getRGBtoXYZ() const noexcept {
+        return mRGBtoXYZ;
+    }
+
+    constexpr const mat3& getXYZtoRGB() const noexcept {
+        return mXYZtoRGB;
+    }
+
+    constexpr const transfer_function& getOETF() const noexcept {
+        return mOETF;
+    }
+
+    constexpr const transfer_function& getEOTF() const noexcept {
+        return mEOTF;
+    }
+
+    constexpr const clamping_function& getClamper() const noexcept {
+        return mClamper;
+    }
+
+    constexpr const std::array<float2, 3>& getPrimaries() const noexcept {
+        return mPrimaries;
+    }
+
+    constexpr const float2& getWhitePoint() const noexcept {
+        return mWhitePoint;
+    }
+
+    constexpr const TransferParameters& getTransferParameters() const noexcept {
+        return mParameters;
+    }
+
+    /**
+     * Converts the supplied XYZ value to xyY.
+     */
+    static constexpr float2 xyY(const float3& XYZ) {
+        return XYZ.xy / dot(XYZ, float3{1});
+    }
+
+    /**
+     * Converts the supplied xyY value to XYZ.
+     */
+    static constexpr float3 XYZ(const float3& xyY) {
+        return float3{(xyY.x * xyY.z) / xyY.y, xyY.z, ((1 - xyY.x - xyY.y) * xyY.z) / xyY.y};
+    }
+
+    static const ColorSpace sRGB();
+    static const ColorSpace linearSRGB();
+    static const ColorSpace extendedSRGB();
+    static const ColorSpace linearExtendedSRGB();
+    static const ColorSpace NTSC();
+    static const ColorSpace BT709();
+    static const ColorSpace BT2020();
+    static const ColorSpace AdobeRGB();
+    static const ColorSpace ProPhotoRGB();
+    static const ColorSpace DisplayP3();
+    static const ColorSpace DCIP3();
+    static const ColorSpace ACES();
+    static const ColorSpace ACEScg();
+
+    // Creates a NxNxN 3D LUT, where N is the specified size (min=2, max=256)
+    // The 3D lookup coordinates map to the RGB components: u=R, v=G, w=B
+    // The generated 3D LUT is meant to be used as a 3D texture and its Y
+    // axis is thus already flipped
+    // The source color space must define its values in the domain [0..1]
+    // The generated LUT transforms from gamma space to gamma space
+    static std::unique_ptr<float3> createLUT(uint32_t size,
+            const ColorSpace& src, const ColorSpace& dst);
+
+private:
+    static constexpr mat3 computeXYZMatrix(
+            const std::array<float2, 3>& primaries, const float2& whitePoint);
+
+    static constexpr float linearResponse(float v) {
+        return v;
+    }
+
+    std::string mName;
+
+    mat3 mRGBtoXYZ;
+    mat3 mXYZtoRGB;
+
+    TransferParameters mParameters;
+    transfer_function mOETF;
+    transfer_function mEOTF;
+    clamping_function mClamper;
+
+    std::array<float2, 3> mPrimaries;
+    float2 mWhitePoint;
+};
+
+class ColorSpaceConnector {
+public:
+    ColorSpaceConnector(const ColorSpace& src, const ColorSpace& dst) noexcept;
+
+    constexpr const ColorSpace& getSource() const noexcept { return mSource; }
+    constexpr const ColorSpace& getDestination() const noexcept { return mDestination; }
+
+    constexpr const mat3& getTransform() const noexcept { return mTransform; }
+
+    constexpr float3 transform(const float3& v) const noexcept {
+        float3 linear = mSource.toLinear(apply(v, mSource.getClamper()));
+        return apply(mDestination.fromLinear(mTransform * linear), mDestination.getClamper());
+    }
+
+    constexpr float3 transformLinear(const float3& v) const noexcept {
+        float3 linear = apply(v, mSource.getClamper());
+        return apply(mTransform * linear, mDestination.getClamper());
+    }
+
+private:
+    ColorSpace mSource;
+    ColorSpace mDestination;
+    mat3 mTransform;
+};
+
+}; // namespace android
+
+#endif // ANDROID_UI_COLOR_SPACE
diff --git a/libs/ui/include/ui/DebugUtils.h b/libs/ui/include/ui/DebugUtils.h
new file mode 100644
index 0000000..30f4a59
--- /dev/null
+++ b/libs/ui/include/ui/DebugUtils.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2017 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.
+ */
+
+#pragma once
+
+#include <system/graphics.h>
+#include <ui/PixelFormat.h>
+
+#include <string>
+
+std::string decodeStandard(android_dataspace dataspace);
+std::string decodeTransfer(android_dataspace dataspace);
+std::string decodeRange(android_dataspace dataspace);
+std::string dataspaceDetails(android_dataspace dataspace);
+std::string decodeColorMode(android_color_mode colormode);
+std::string decodePixelFormat(android::PixelFormat format);
diff --git a/libs/ui/include/ui/DisplayInfo.h b/libs/ui/include/ui/DisplayInfo.h
new file mode 100644
index 0000000..94caf6b
--- /dev/null
+++ b/libs/ui/include/ui/DisplayInfo.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2007 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.
+ */
+
+#ifndef ANDROID_UI_DISPLAY_INFO_H
+#define ANDROID_UI_DISPLAY_INFO_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Timers.h>
+
+namespace android {
+
+struct DisplayInfo {
+    uint32_t w{0};
+    uint32_t h{0};
+    float xdpi{0};
+    float ydpi{0};
+    float fps{0};
+    float density{0};
+    uint8_t orientation{0};
+    bool secure{false};
+    nsecs_t appVsyncOffset{0};
+    nsecs_t presentationDeadline{0};
+};
+
+/* Display orientations as defined in Surface.java and ISurfaceComposer.h. */
+enum {
+    DISPLAY_ORIENTATION_0 = 0,
+    DISPLAY_ORIENTATION_90 = 1,
+    DISPLAY_ORIENTATION_180 = 2,
+    DISPLAY_ORIENTATION_270 = 3
+};
+
+}; // namespace android
+
+#endif // ANDROID_COMPOSER_DISPLAY_INFO_H
diff --git a/libs/ui/include/ui/DisplayStatInfo.h b/libs/ui/include/ui/DisplayStatInfo.h
new file mode 100644
index 0000000..09543ec
--- /dev/null
+++ b/libs/ui/include/ui/DisplayStatInfo.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2014 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.
+ */
+
+#ifndef ANDROID_UI_DISPLAY_STAT_INFO_H
+#define ANDROID_UI_DISPLAY_STAT_INFO_H
+
+#include <utils/Timers.h>
+
+namespace android {
+
+struct DisplayStatInfo {
+    nsecs_t vsyncTime{0};
+    nsecs_t vsyncPeriod{0};
+};
+
+}; // namespace android
+
+#endif // ANDROID_COMPOSER_DISPLAY_STAT_INFO_H
diff --git a/libs/ui/include/ui/Fence.h b/libs/ui/include/ui/Fence.h
new file mode 100644
index 0000000..37811bc
--- /dev/null
+++ b/libs/ui/include/ui/Fence.h
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+#ifndef ANDROID_FENCE_H
+#define ANDROID_FENCE_H
+
+#include <stdint.h>
+
+#include <utils/Flattenable.h>
+#include <utils/RefBase.h>
+#include <utils/Timers.h>
+
+namespace android {
+
+class String8;
+
+// ===========================================================================
+// Fence
+// ===========================================================================
+
+class Fence
+    : public LightRefBase<Fence>, public Flattenable<Fence>
+{
+public:
+    static const sp<Fence> NO_FENCE;
+    static constexpr nsecs_t SIGNAL_TIME_PENDING = INT64_MAX;
+    static constexpr nsecs_t SIGNAL_TIME_INVALID = -1;
+    static inline bool isValidTimestamp(nsecs_t time) {
+        return time >= 0 && time < INT64_MAX;
+    }
+
+    // TIMEOUT_NEVER may be passed to the wait method to indicate that it
+    // should wait indefinitely for the fence to signal.
+    enum { TIMEOUT_NEVER = -1 };
+
+    // Construct a new Fence object with an invalid file descriptor.  This
+    // should be done when the Fence object will be set up by unflattening
+    // serialized data.
+    Fence();
+
+    // Construct a new Fence object to manage a given fence file descriptor.
+    // When the new Fence object is destructed the file descriptor will be
+    // closed.
+    explicit Fence(int fenceFd);
+
+    // Not copyable or movable.
+    Fence(const Fence& rhs) = delete;
+    Fence& operator=(const Fence& rhs) = delete;
+    Fence(Fence&& rhs) = delete;
+    Fence& operator=(Fence&& rhs) = delete;
+
+    // Check whether the Fence has an open fence file descriptor. Most Fence
+    // methods treat an invalid file descriptor just like a valid fence that
+    // is already signalled, so using this is usually not necessary.
+    bool isValid() const { return mFenceFd != -1; }
+
+    // wait waits for up to timeout milliseconds for the fence to signal.  If
+    // the fence signals then NO_ERROR is returned. If the timeout expires
+    // before the fence signals then -ETIME is returned.  A timeout of
+    // TIMEOUT_NEVER may be used to indicate that the call should wait
+    // indefinitely for the fence to signal.
+    status_t wait(int timeout);
+
+    // waitForever is a convenience function for waiting forever for a fence to
+    // signal (just like wait(TIMEOUT_NEVER)), but issuing an error to the
+    // system log and fence state to the kernel log if the wait lasts longer
+    // than a warning timeout.
+    // The logname argument should be a string identifying
+    // the caller and will be included in the log message.
+    status_t waitForever(const char* logname);
+
+    // merge combines two Fence objects, creating a new Fence object that
+    // becomes signaled when both f1 and f2 are signaled (even if f1 or f2 is
+    // destroyed before it becomes signaled).  The name argument specifies the
+    // human-readable name to associated with the new Fence object.
+    static sp<Fence> merge(const char* name, const sp<Fence>& f1,
+            const sp<Fence>& f2);
+
+    static sp<Fence> merge(const String8& name, const sp<Fence>& f1,
+            const sp<Fence>& f2);
+
+    // Return a duplicate of the fence file descriptor. The caller is
+    // responsible for closing the returned file descriptor. On error, -1 will
+    // be returned and errno will indicate the problem.
+    int dup() const;
+
+    // getSignalTime returns the system monotonic clock time at which the
+    // fence transitioned to the signaled state.  If the fence is not signaled
+    // then SIGNAL_TIME_PENDING is returned.  If the fence is invalid or if an
+    // error occurs then SIGNAL_TIME_INVALID is returned.
+    nsecs_t getSignalTime() const;
+
+    enum class Status {
+        Invalid,     // Fence is invalid
+        Unsignaled,  // Fence is valid but has not yet signaled
+        Signaled,    // Fence is valid and has signaled
+    };
+
+    // getStatus() returns whether the fence has signaled yet. Prefer this to
+    // getSignalTime() or wait() if all you care about is whether the fence has
+    // signaled.
+    inline Status getStatus() {
+        // The sync_wait call underlying wait() has been measured to be
+        // significantly faster than the sync_fence_info call underlying
+        // getSignalTime(), which might otherwise appear to be the more obvious
+        // way to check whether a fence has signaled.
+        switch (wait(0)) {
+            case NO_ERROR:
+                return Status::Signaled;
+            case -ETIME:
+                return Status::Unsignaled;
+            default:
+                return Status::Invalid;
+        }
+    }
+
+    // Flattenable interface
+    size_t getFlattenedSize() const;
+    size_t getFdCount() const;
+    status_t flatten(void*& buffer, size_t& size, int*& fds, size_t& count) const;
+    status_t unflatten(void const*& buffer, size_t& size, int const*& fds, size_t& count);
+
+private:
+    // Only allow instantiation using ref counting.
+    friend class LightRefBase<Fence>;
+    ~Fence();
+
+    int mFenceFd;
+};
+
+}; // namespace android
+
+#endif // ANDROID_FENCE_H
diff --git a/libs/ui/include/ui/FenceTime.h b/libs/ui/include/ui/FenceTime.h
new file mode 100644
index 0000000..871fcf2
--- /dev/null
+++ b/libs/ui/include/ui/FenceTime.h
@@ -0,0 +1,208 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#ifndef ANDROID_FENCE_TIME_H
+#define ANDROID_FENCE_TIME_H
+
+#include <ui/Fence.h>
+#include <utils/Flattenable.h>
+#include <utils/Timers.h>
+
+#include <atomic>
+#include <mutex>
+#include <queue>
+#include <unordered_map>
+
+namespace android {
+
+class FenceToFenceTimeMap;
+
+// A wrapper around fence that only implements isValid and getSignalTime.
+// It automatically closes the fence in a thread-safe manner once the signal
+// time is known.
+class FenceTime {
+friend class FenceToFenceTimeMap;
+public:
+    // An atomic snapshot of the FenceTime that is flattenable.
+    //
+    // This class is needed because the FenceTime class may not stay
+    // consistent for all steps of the flattening process.
+    //
+    // Not thread safe.
+    struct Snapshot : public Flattenable<Snapshot> {
+        enum class State {
+            EMPTY,
+            FENCE,
+            SIGNAL_TIME,
+        };
+
+        Snapshot() = default;  // Creates an empty snapshot.
+        explicit Snapshot(const sp<Fence>& fence);
+        explicit Snapshot(nsecs_t signalTime);
+
+        // Movable.
+        Snapshot(Snapshot&& src) = default;
+        Snapshot& operator=(Snapshot&& src) = default;
+        // Not copyable.
+        Snapshot(const Snapshot& src) = delete;
+        Snapshot& operator=(const Snapshot&& src) = delete;
+
+        // Flattenable implementation.
+        size_t getFlattenedSize() const;
+        size_t getFdCount() const;
+        status_t flatten(void*& buffer, size_t& size, int*& fds,
+                size_t& count) const;
+        status_t unflatten(void const*& buffer, size_t& size, int const*& fds,
+                size_t& count);
+
+        State state{State::EMPTY};
+        sp<Fence> fence{Fence::NO_FENCE};
+        nsecs_t signalTime{Fence::SIGNAL_TIME_INVALID};
+    };
+
+    static const std::shared_ptr<FenceTime> NO_FENCE;
+
+    explicit FenceTime(const sp<Fence>& fence);
+    explicit FenceTime(sp<Fence>&& fence);
+
+    // Passing in Fence::SIGNAL_TIME_PENDING is not allowed.
+    // Doing so will convert the signalTime to Fence::SIGNAL_TIME_INVALID.
+    explicit FenceTime(nsecs_t signalTime);
+
+    // Do not allow default construction. Share NO_FENCE or explicitly construct
+    // with Fence::SIGNAL_TIME_INVALID instead.
+    FenceTime() = delete;
+
+    // Do not allow copy, assign, or move. Use a shared_ptr to share the
+    // signalTime result. Or use getSnapshot() if a thread-safe copy is really
+    // needed.
+    FenceTime(const FenceTime&) = delete;
+    FenceTime(FenceTime&&) = delete;
+    FenceTime& operator=(const FenceTime&) = delete;
+    FenceTime& operator=(FenceTime&&) = delete;
+
+    // This method should only be called when replacing the fence with
+    // a signalTime. Since this is an indirect way of setting the signal time
+    // of a fence, the snapshot should come from a trusted source.
+    void applyTrustedSnapshot(const Snapshot& src);
+
+    bool isValid() const;
+
+    // Attempts to get the timestamp from the Fence if the timestamp isn't
+    // already cached. Otherwise, it returns the cached value.
+    nsecs_t getSignalTime();
+
+    // Gets the cached timestamp without attempting to query the Fence.
+    nsecs_t getCachedSignalTime() const;
+
+    // Returns a snapshot of the FenceTime in its current state.
+    Snapshot getSnapshot() const;
+
+    void signalForTest(nsecs_t signalTime);
+
+    // Override new and delete since this needs 8-byte alignment, which
+    // is not guaranteed on x86.
+    static void* operator new(size_t nbytes) noexcept;
+    static void operator delete(void *p);
+
+private:
+    // For tests only. If forceValidForTest is true, then getSignalTime will
+    // never return SIGNAL_TIME_INVALID and isValid will always return true.
+    FenceTime(const sp<Fence>& fence, bool forceValidForTest);
+
+    enum class State {
+        VALID,
+        INVALID,
+        FORCED_VALID_FOR_TEST,
+    };
+
+    const State mState{State::INVALID};
+
+    // mMutex guards mFence and mSignalTime.
+    // mSignalTime is also atomic since it is sometimes read outside the lock
+    // for quick checks.
+    mutable std::mutex mMutex;
+    sp<Fence> mFence{Fence::NO_FENCE};
+    std::atomic<nsecs_t> mSignalTime{Fence::SIGNAL_TIME_INVALID};
+};
+
+// A queue of FenceTimes that are expected to signal in FIFO order.
+// Only maintains a queue of weak pointers so it doesn't keep references
+// to Fences on its own.
+//
+// Can be used to get the signal time of a fence and close its file descriptor
+// without making a syscall for every fence later in the timeline.
+// Additionally, since the FenceTime caches the timestamp internally,
+// other timelines that reference the same FenceTime can avoid the syscall.
+//
+// FenceTimeline only keeps track of a limited number of entries to avoid
+// growing unbounded. Users of FenceTime must make sure they can work even
+// if FenceTimeline did nothing. i.e. they should eventually call
+// Fence::getSignalTime(), not only Fence::getCachedSignalTime().
+//
+// push() and updateSignalTimes() are safe to call simultaneously from
+// different threads.
+class FenceTimeline {
+public:
+    static constexpr size_t MAX_ENTRIES = 64;
+
+    void push(const std::shared_ptr<FenceTime>& fence);
+    void updateSignalTimes();
+
+private:
+    mutable std::mutex mMutex;
+    std::queue<std::weak_ptr<FenceTime>> mQueue;
+};
+
+// Used by test code to create or get FenceTimes for a given Fence.
+//
+// By design, Fences cannot be signaled from user space. However, this class
+// allows test code to set the apparent signalTime of a Fence and
+// have it be visible to all FenceTimes. Release code should not use
+// FenceToFenceTimeMap.
+//
+// FenceToFenceTimeMap keeps a weak reference to the FenceTime and automatically
+// garbage collects entries every time a new FenceTime is created to avoid
+// leaks. This prevents us from having to make the Fence destructor
+// automatically notify that the underlying fence has been destroyed, which
+// would affect release code paths. Garbage collecting so often is inefficient,
+// but acceptable for testing.
+//
+// Since FenceTimes maintain a strong reference to underlying Fences, there
+// should not be any aliasing issues where a new Fence happens to have the same
+// address as a previous Fence; the previous entry will be garbage collected
+// before the new one is added.
+class FenceToFenceTimeMap {
+public:
+    // Create a new FenceTime with that wraps the provided Fence.
+    std::shared_ptr<FenceTime> createFenceTimeForTest(const sp<Fence>& fence);
+
+    // Signals all FenceTimes created through this class that are wrappers
+    // around |fence|.
+    void signalAllForTest(const sp<Fence>& fence, nsecs_t signalTime);
+
+private:
+    // Cleans up the entries that no longer have a strong reference.
+    void garbageCollectLocked();
+
+    mutable std::mutex mMutex;
+    std::unordered_map<Fence*, std::vector<std::weak_ptr<FenceTime>>> mMap;
+};
+
+
+}; // namespace android
+
+#endif // ANDROID_FENCE_TIME_H
diff --git a/libs/ui/include/ui/FloatRect.h b/libs/ui/include/ui/FloatRect.h
new file mode 100644
index 0000000..270675c
--- /dev/null
+++ b/libs/ui/include/ui/FloatRect.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2013 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.
+ */
+
+#pragma once
+
+namespace android {
+
+class FloatRect {
+public:
+    FloatRect() = default;
+    constexpr FloatRect(float _left, float _top, float _right, float _bottom)
+      : left(_left), top(_top), right(_right), bottom(_bottom) {}
+
+    float getWidth() const { return right - left; }
+    float getHeight() const { return bottom - top; }
+
+    float left = 0.0f;
+    float top = 0.0f;
+    float right = 0.0f;
+    float bottom = 0.0f;
+};
+
+inline bool operator==(const FloatRect& a, const FloatRect& b) {
+    return a.left == b.left && a.top == b.top && a.right == b.right && a.bottom == b.bottom;
+}
+
+}  // namespace android
diff --git a/libs/ui/include/ui/FrameStats.h b/libs/ui/include/ui/FrameStats.h
new file mode 100644
index 0000000..bc9d3ec
--- /dev/null
+++ b/libs/ui/include/ui/FrameStats.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2014 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.
+ */
+
+#ifndef ANDROID_UI_FRAME_STATS_H
+#define ANDROID_UI_FRAME_STATS_H
+
+#include <utils/Flattenable.h>
+#include <utils/Timers.h>
+#include <utils/Vector.h>
+
+namespace android {
+
+class FrameStats : public LightFlattenable<FrameStats> {
+public:
+    FrameStats() : refreshPeriodNano(0) {}
+
+    /*
+     * Approximate refresh time, in nanoseconds.
+     */
+    nsecs_t refreshPeriodNano;
+
+   /*
+    * The times in nanoseconds for when the frame contents were posted by the producer (e.g.
+    * the application). They are either explicitly set or defaulted to the time when
+    * Surface::queueBuffer() was called.
+    */
+    Vector<nsecs_t> desiredPresentTimesNano;
+
+   /*
+    * The times in milliseconds for when the frame contents were presented on the screen.
+    */
+    Vector<nsecs_t> actualPresentTimesNano;
+
+   /*
+    * The times in nanoseconds for when the frame contents were ready to be presented. Note that
+    * a frame can be posted and still it contents being rendered asynchronously in GL. In such a
+    * case these are the times when the frame contents were completely rendered (i.e. their fences
+    * signaled).
+    */
+    Vector<nsecs_t> frameReadyTimesNano;
+
+    // LightFlattenable
+    bool isFixedSize() const;
+    size_t getFlattenedSize() const;
+    status_t flatten(void* buffer, size_t size) const;
+    status_t unflatten(void const* buffer, size_t size);
+};
+
+}; // namespace android
+
+#endif // ANDROID_UI_FRAME_STATS_H
diff --git a/libs/ui/include/ui/Gralloc2.h b/libs/ui/include/ui/Gralloc2.h
new file mode 100644
index 0000000..e7b8ca9
--- /dev/null
+++ b/libs/ui/include/ui/Gralloc2.h
@@ -0,0 +1,125 @@
+/*
+ * Copyright 2016 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.
+ */
+
+#ifndef ANDROID_UI_GRALLOC2_H
+#define ANDROID_UI_GRALLOC2_H
+
+#include <string>
+
+#include <android/hardware/graphics/allocator/2.0/IAllocator.h>
+#include <android/hardware/graphics/mapper/2.0/IMapper.h>
+#include <utils/StrongPointer.h>
+
+namespace android {
+
+namespace Gralloc2 {
+
+using hardware::graphics::allocator::V2_0::IAllocator;
+using hardware::graphics::common::V1_0::BufferUsage;
+using hardware::graphics::common::V1_0::PixelFormat;
+using hardware::graphics::mapper::V2_0::BufferDescriptor;
+using hardware::graphics::mapper::V2_0::Error;
+using hardware::graphics::mapper::V2_0::IMapper;
+using hardware::graphics::mapper::V2_0::YCbCrLayout;
+
+// A wrapper to IMapper
+class Mapper {
+public:
+    Mapper();
+
+    Error createDescriptor(
+            const IMapper::BufferDescriptorInfo& descriptorInfo,
+            BufferDescriptor* outDescriptor) const;
+
+    // Import a buffer that is from another HAL, another process, or is
+    // cloned.
+    //
+    // The returned handle must be freed with freeBuffer.
+    Error importBuffer(const hardware::hidl_handle& rawHandle,
+            buffer_handle_t* outBufferHandle) const;
+
+    void freeBuffer(buffer_handle_t bufferHandle) const;
+
+    // The ownership of acquireFence is always transferred to the callee, even
+    // on errors.
+    Error lock(buffer_handle_t bufferHandle, uint64_t usage,
+            const IMapper::Rect& accessRegion,
+            int acquireFence, void** outData) const;
+
+    // The ownership of acquireFence is always transferred to the callee, even
+    // on errors.
+    Error lock(buffer_handle_t bufferHandle, uint64_t usage,
+            const IMapper::Rect& accessRegion,
+            int acquireFence, YCbCrLayout* outLayout) const;
+
+    // unlock returns a fence sync object (or -1) and the fence sync object is
+    // owned by the caller
+    int unlock(buffer_handle_t bufferHandle) const;
+
+private:
+    sp<IMapper> mMapper;
+};
+
+// A wrapper to IAllocator
+class Allocator {
+public:
+    // An allocator relies on a mapper, and that mapper must be alive at all
+    // time.
+    Allocator(const Mapper& mapper);
+
+    std::string dumpDebugInfo() const;
+
+    /*
+     * The returned buffers are already imported and must not be imported
+     * again.  outBufferHandles must point to a space that can contain at
+     * least "count" buffer_handle_t.
+     */
+    Error allocate(BufferDescriptor descriptor, uint32_t count,
+            uint32_t* outStride, buffer_handle_t* outBufferHandles) const;
+
+    Error allocate(BufferDescriptor descriptor,
+            uint32_t* outStride, buffer_handle_t* outBufferHandle) const
+    {
+        return allocate(descriptor, 1, outStride, outBufferHandle);
+    }
+
+    Error allocate(const IMapper::BufferDescriptorInfo& descriptorInfo, uint32_t count,
+            uint32_t* outStride, buffer_handle_t* outBufferHandles) const
+    {
+        BufferDescriptor descriptor;
+        Error error = mMapper.createDescriptor(descriptorInfo, &descriptor);
+        if (error == Error::NONE) {
+            error = allocate(descriptor, count, outStride, outBufferHandles);
+        }
+        return error;
+    }
+
+    Error allocate(const IMapper::BufferDescriptorInfo& descriptorInfo,
+            uint32_t* outStride, buffer_handle_t* outBufferHandle) const
+    {
+        return allocate(descriptorInfo, 1, outStride, outBufferHandle);
+    }
+
+private:
+    const Mapper& mMapper;
+    sp<IAllocator> mAllocator;
+};
+
+} // namespace Gralloc2
+
+} // namespace android
+
+#endif // ANDROID_UI_GRALLOC2_H
diff --git a/libs/ui/include/ui/GraphicBuffer.h b/libs/ui/include/ui/GraphicBuffer.h
new file mode 100644
index 0000000..9a5aa69
--- /dev/null
+++ b/libs/ui/include/ui/GraphicBuffer.h
@@ -0,0 +1,243 @@
+/*
+ * Copyright (C) 2007 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.
+ */
+
+#ifndef ANDROID_GRAPHIC_BUFFER_H
+#define ANDROID_GRAPHIC_BUFFER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <string>
+
+#include <ui/ANativeObjectBase.h>
+#include <ui/PixelFormat.h>
+#include <ui/Rect.h>
+#include <utils/Flattenable.h>
+#include <utils/RefBase.h>
+
+#include <nativebase/nativebase.h>
+
+#include <hardware/gralloc.h>
+
+namespace android {
+
+class GraphicBufferMapper;
+
+// ===========================================================================
+// GraphicBuffer
+// ===========================================================================
+
+class GraphicBuffer
+    : public ANativeObjectBase<ANativeWindowBuffer, GraphicBuffer, RefBase>,
+      public Flattenable<GraphicBuffer>
+{
+    friend class Flattenable<GraphicBuffer>;
+public:
+
+    enum {
+        USAGE_SW_READ_NEVER     = GRALLOC_USAGE_SW_READ_NEVER,
+        USAGE_SW_READ_RARELY    = GRALLOC_USAGE_SW_READ_RARELY,
+        USAGE_SW_READ_OFTEN     = GRALLOC_USAGE_SW_READ_OFTEN,
+        USAGE_SW_READ_MASK      = GRALLOC_USAGE_SW_READ_MASK,
+
+        USAGE_SW_WRITE_NEVER    = GRALLOC_USAGE_SW_WRITE_NEVER,
+        USAGE_SW_WRITE_RARELY   = GRALLOC_USAGE_SW_WRITE_RARELY,
+        USAGE_SW_WRITE_OFTEN    = GRALLOC_USAGE_SW_WRITE_OFTEN,
+        USAGE_SW_WRITE_MASK     = GRALLOC_USAGE_SW_WRITE_MASK,
+
+        USAGE_SOFTWARE_MASK     = USAGE_SW_READ_MASK|USAGE_SW_WRITE_MASK,
+
+        USAGE_PROTECTED         = GRALLOC_USAGE_PROTECTED,
+
+        USAGE_HW_TEXTURE        = GRALLOC_USAGE_HW_TEXTURE,
+        USAGE_HW_RENDER         = GRALLOC_USAGE_HW_RENDER,
+        USAGE_HW_2D             = GRALLOC_USAGE_HW_2D,
+        USAGE_HW_COMPOSER       = GRALLOC_USAGE_HW_COMPOSER,
+        USAGE_HW_VIDEO_ENCODER  = GRALLOC_USAGE_HW_VIDEO_ENCODER,
+        USAGE_HW_MASK           = GRALLOC_USAGE_HW_MASK,
+
+        USAGE_CURSOR            = GRALLOC_USAGE_CURSOR,
+    };
+
+    static sp<GraphicBuffer> from(ANativeWindowBuffer *);
+
+
+    // Create a GraphicBuffer to be unflatten'ed into or be reallocated.
+    GraphicBuffer();
+
+    // Create a GraphicBuffer by allocating and managing a buffer internally.
+    // This function is privileged.  See reallocate for details.
+    GraphicBuffer(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat,
+            uint32_t inLayerCount, uint64_t inUsage,
+            std::string requestorName = "<Unknown>");
+
+    // Create a GraphicBuffer from an existing handle.
+    enum HandleWrapMethod : uint8_t {
+        // Wrap and use the handle directly.  It assumes the handle has been
+        // registered and never fails.  The handle must have a longer lifetime
+        // than this wrapping GraphicBuffer.
+        //
+        // This can be used when, for example, you want to wrap a handle that
+        // is already managed by another GraphicBuffer.
+        WRAP_HANDLE,
+
+        // Take ownership of the handle and use it directly.  It assumes the
+        // handle has been registered and never fails.
+        //
+        // This can be used to manage an already registered handle with
+        // GraphicBuffer.
+        TAKE_HANDLE,
+
+        // Take onwership of an unregistered handle and use it directly.  It
+        // can fail when the buffer does not register.  There is no ownership
+        // transfer on failures.
+        //
+        // This can be used to, for example, create a GraphicBuffer from a
+        // handle returned by Parcel::readNativeHandle.
+        TAKE_UNREGISTERED_HANDLE,
+
+        // Make a clone of the handle and use the cloned handle.  It can fail
+        // when cloning fails or when the buffer does not register.  There is
+        // never ownership transfer.
+        //
+        // This can be used to create a GraphicBuffer from a handle that
+        // cannot be used directly, such as one from hidl_handle.
+        CLONE_HANDLE,
+    };
+    GraphicBuffer(const native_handle_t* handle, HandleWrapMethod method,
+            uint32_t width, uint32_t height,
+            PixelFormat format, uint32_t layerCount,
+            uint64_t usage, uint32_t stride);
+
+    // These functions are deprecated because they only take 32 bits of usage
+    GraphicBuffer(const native_handle_t* handle, HandleWrapMethod method,
+            uint32_t width, uint32_t height,
+            PixelFormat format, uint32_t layerCount,
+            uint32_t usage, uint32_t stride)
+        : GraphicBuffer(handle, method, width, height, format, layerCount,
+                static_cast<uint64_t>(usage), stride) {}
+    GraphicBuffer(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat,
+            uint32_t inLayerCount, uint32_t inUsage, uint32_t inStride,
+            native_handle_t* inHandle, bool keepOwnership);
+    GraphicBuffer(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat,
+            uint32_t inUsage, std::string requestorName = "<Unknown>");
+
+    // return status
+    status_t initCheck() const;
+
+    uint32_t getWidth() const           { return static_cast<uint32_t>(width); }
+    uint32_t getHeight() const          { return static_cast<uint32_t>(height); }
+    uint32_t getStride() const          { return static_cast<uint32_t>(stride); }
+    uint32_t getUsage() const           { return static_cast<uint32_t>(usage); }
+    PixelFormat getPixelFormat() const  { return format; }
+    uint32_t getLayerCount() const      { return static_cast<uint32_t>(layerCount); }
+    Rect getBounds() const              { return Rect(width, height); }
+    uint64_t getId() const              { return mId; }
+
+    uint32_t getGenerationNumber() const { return mGenerationNumber; }
+    void setGenerationNumber(uint32_t generation) {
+        mGenerationNumber = generation;
+    }
+
+    // This function is privileged.  It requires access to the allocator
+    // device or service, which usually involves adding suitable selinux
+    // rules.
+    status_t reallocate(uint32_t inWidth, uint32_t inHeight,
+            PixelFormat inFormat, uint32_t inLayerCount, uint64_t inUsage);
+
+    bool needsReallocation(uint32_t inWidth, uint32_t inHeight,
+            PixelFormat inFormat, uint32_t inLayerCount, uint64_t inUsage);
+
+    status_t lock(uint32_t inUsage, void** vaddr);
+    status_t lock(uint32_t inUsage, const Rect& rect, void** vaddr);
+    // For HAL_PIXEL_FORMAT_YCbCr_420_888
+    status_t lockYCbCr(uint32_t inUsage, android_ycbcr *ycbcr);
+    status_t lockYCbCr(uint32_t inUsage, const Rect& rect,
+            android_ycbcr *ycbcr);
+    status_t unlock();
+    status_t lockAsync(uint32_t inUsage, void** vaddr, int fenceFd);
+    status_t lockAsync(uint32_t inUsage, const Rect& rect, void** vaddr,
+            int fenceFd);
+    status_t lockAsync(uint64_t inProducerUsage, uint64_t inConsumerUsage,
+            const Rect& rect, void** vaddr, int fenceFd);
+    status_t lockAsyncYCbCr(uint32_t inUsage, android_ycbcr *ycbcr,
+            int fenceFd);
+    status_t lockAsyncYCbCr(uint32_t inUsage, const Rect& rect,
+            android_ycbcr *ycbcr, int fenceFd);
+    status_t unlockAsync(int *fenceFd);
+
+    ANativeWindowBuffer* getNativeBuffer() const;
+
+    // for debugging
+    static void dumpAllocationsToSystemLog();
+
+    // Flattenable protocol
+    size_t getFlattenedSize() const;
+    size_t getFdCount() const;
+    status_t flatten(void*& buffer, size_t& size, int*& fds, size_t& count) const;
+    status_t unflatten(void const*& buffer, size_t& size, int const*& fds, size_t& count);
+
+private:
+    ~GraphicBuffer();
+
+    enum {
+        ownNone   = 0,
+        ownHandle = 1,
+        ownData   = 2,
+    };
+
+    inline const GraphicBufferMapper& getBufferMapper() const {
+        return mBufferMapper;
+    }
+    inline GraphicBufferMapper& getBufferMapper() {
+        return mBufferMapper;
+    }
+    uint8_t mOwner;
+
+private:
+    friend class Surface;
+    friend class BpSurface;
+    friend class BnSurface;
+    friend class LightRefBase<GraphicBuffer>;
+    GraphicBuffer(const GraphicBuffer& rhs);
+    GraphicBuffer& operator = (const GraphicBuffer& rhs);
+    const GraphicBuffer& operator = (const GraphicBuffer& rhs) const;
+
+    status_t initWithSize(uint32_t inWidth, uint32_t inHeight,
+            PixelFormat inFormat, uint32_t inLayerCount,
+            uint64_t inUsage, std::string requestorName);
+
+    status_t initWithHandle(const native_handle_t* handle,
+            HandleWrapMethod method, uint32_t width, uint32_t height,
+            PixelFormat format, uint32_t layerCount,
+            uint64_t usage, uint32_t stride);
+
+    void free_handle();
+
+    GraphicBufferMapper& mBufferMapper;
+    ssize_t mInitCheck;
+
+    uint64_t mId;
+
+    // Stores the generation number of this buffer. If this number does not
+    // match the BufferQueue's internal generation number (set through
+    // IGBP::setGenerationNumber), attempts to attach the buffer will fail.
+    uint32_t mGenerationNumber;
+};
+
+}; // namespace android
+
+#endif // ANDROID_GRAPHIC_BUFFER_H
diff --git a/libs/ui/include/ui/GraphicBufferAllocator.h b/libs/ui/include/ui/GraphicBufferAllocator.h
new file mode 100644
index 0000000..14a865e
--- /dev/null
+++ b/libs/ui/include/ui/GraphicBufferAllocator.h
@@ -0,0 +1,85 @@
+/*
+**
+** Copyright 2009, 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.
+*/
+
+#ifndef ANDROID_BUFFER_ALLOCATOR_H
+#define ANDROID_BUFFER_ALLOCATOR_H
+
+#include <stdint.h>
+
+#include <memory>
+#include <string>
+
+#include <cutils/native_handle.h>
+
+#include <ui/PixelFormat.h>
+
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/Mutex.h>
+#include <utils/Singleton.h>
+
+namespace android {
+
+namespace Gralloc2 {
+class Allocator;
+}
+
+class GraphicBufferMapper;
+class String8;
+
+class GraphicBufferAllocator : public Singleton<GraphicBufferAllocator>
+{
+public:
+    static inline GraphicBufferAllocator& get() { return getInstance(); }
+
+    status_t allocate(uint32_t w, uint32_t h, PixelFormat format,
+            uint32_t layerCount, uint64_t usage,
+            buffer_handle_t* handle, uint32_t* stride, uint64_t graphicBufferId,
+            std::string requestorName);
+
+    status_t free(buffer_handle_t handle);
+
+    void dump(String8& res) const;
+    static void dumpToSystemLog();
+
+private:
+    struct alloc_rec_t {
+        uint32_t width;
+        uint32_t height;
+        uint32_t stride;
+        PixelFormat format;
+        uint32_t layerCount;
+        uint64_t usage;
+        size_t size;
+        std::string requestorName;
+    };
+
+    static Mutex sLock;
+    static KeyedVector<buffer_handle_t, alloc_rec_t> sAllocList;
+
+    friend class Singleton<GraphicBufferAllocator>;
+    GraphicBufferAllocator();
+    ~GraphicBufferAllocator();
+
+    GraphicBufferMapper& mMapper;
+    const std::unique_ptr<const Gralloc2::Allocator> mAllocator;
+};
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_BUFFER_ALLOCATOR_H
diff --git a/libs/ui/include/ui/GraphicBufferMapper.h b/libs/ui/include/ui/GraphicBufferMapper.h
new file mode 100644
index 0000000..e0702e9
--- /dev/null
+++ b/libs/ui/include/ui/GraphicBufferMapper.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2007 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.
+ */
+
+#ifndef ANDROID_UI_BUFFER_MAPPER_H
+#define ANDROID_UI_BUFFER_MAPPER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <memory>
+
+#include <utils/Singleton.h>
+
+
+// Needed by code that still uses the GRALLOC_USAGE_* constants.
+// when/if we get rid of gralloc, we should provide aliases or fix call sites.
+#include <hardware/gralloc.h>
+
+
+namespace android {
+
+// ---------------------------------------------------------------------------
+
+namespace Gralloc2 {
+class Mapper;
+}
+
+class Rect;
+
+class GraphicBufferMapper : public Singleton<GraphicBufferMapper>
+{
+public:
+    static inline GraphicBufferMapper& get() { return getInstance(); }
+
+    // The imported outHandle must be freed with freeBuffer when no longer
+    // needed. rawHandle is owned by the caller.
+    status_t importBuffer(buffer_handle_t rawHandle,
+            buffer_handle_t* outHandle);
+
+    status_t freeBuffer(buffer_handle_t handle);
+
+    status_t lock(buffer_handle_t handle,
+            uint32_t usage, const Rect& bounds, void** vaddr);
+
+    status_t lockYCbCr(buffer_handle_t handle,
+            uint32_t usage, const Rect& bounds, android_ycbcr *ycbcr);
+
+    status_t unlock(buffer_handle_t handle);
+
+    status_t lockAsync(buffer_handle_t handle,
+            uint32_t usage, const Rect& bounds, void** vaddr, int fenceFd);
+
+    status_t lockAsync(buffer_handle_t handle,
+            uint64_t producerUsage, uint64_t consumerUsage, const Rect& bounds,
+            void** vaddr, int fenceFd);
+
+    status_t lockAsyncYCbCr(buffer_handle_t handle,
+            uint32_t usage, const Rect& bounds, android_ycbcr *ycbcr,
+            int fenceFd);
+
+    status_t unlockAsync(buffer_handle_t handle, int *fenceFd);
+
+    const Gralloc2::Mapper& getGrallocMapper() const
+    {
+        return *mMapper;
+    }
+
+private:
+    friend class Singleton<GraphicBufferMapper>;
+
+    GraphicBufferMapper();
+
+    const std::unique_ptr<const Gralloc2::Mapper> mMapper;
+};
+
+// ---------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_UI_BUFFER_MAPPER_H
+
diff --git a/libs/ui/include/ui/HdrCapabilities.h b/libs/ui/include/ui/HdrCapabilities.h
new file mode 100644
index 0000000..925aa1b
--- /dev/null
+++ b/libs/ui/include/ui/HdrCapabilities.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2016 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.
+ */
+
+#ifndef ANDROID_UI_HDR_CAPABILTIES_H
+#define ANDROID_UI_HDR_CAPABILTIES_H
+
+#include <stdint.h>
+
+#include <vector>
+
+#include <utils/Flattenable.h>
+
+namespace android {
+
+class HdrCapabilities : public LightFlattenable<HdrCapabilities>
+{
+public:
+    HdrCapabilities(const std::vector<int32_t /*android_hdr_t*/>& types,
+            float maxLuminance, float maxAverageLuminance, float minLuminance)
+      : mSupportedHdrTypes(types),
+        mMaxLuminance(maxLuminance),
+        mMaxAverageLuminance(maxAverageLuminance),
+        mMinLuminance(minLuminance) {}
+
+    // Make this move-constructable and move-assignable
+    HdrCapabilities(HdrCapabilities&& other);
+    HdrCapabilities& operator=(HdrCapabilities&& other);
+
+    HdrCapabilities()
+      : mSupportedHdrTypes(),
+        mMaxLuminance(-1.0f),
+        mMaxAverageLuminance(-1.0f),
+        mMinLuminance(-1.0f) {}
+
+    ~HdrCapabilities();
+
+    const std::vector<int32_t /*android_hdr_t*/>& getSupportedHdrTypes() const {
+        return mSupportedHdrTypes;
+    }
+    float getDesiredMaxLuminance() const { return mMaxLuminance; }
+    float getDesiredMaxAverageLuminance() const { return mMaxAverageLuminance; }
+    float getDesiredMinLuminance() const { return mMinLuminance; }
+
+    // Flattenable protocol
+    bool isFixedSize() const { return false; }
+    size_t getFlattenedSize() const;
+    status_t flatten(void* buffer, size_t size) const;
+    status_t unflatten(void const* buffer, size_t size);
+
+private:
+    std::vector<int32_t /*android_hdr_t*/> mSupportedHdrTypes;
+    float mMaxLuminance;
+    float mMaxAverageLuminance;
+    float mMinLuminance;
+};
+
+} // namespace android
+
+#endif
diff --git a/libs/ui/include/ui/PixelFormat.h b/libs/ui/include/ui/PixelFormat.h
new file mode 100644
index 0000000..02773d9
--- /dev/null
+++ b/libs/ui/include/ui/PixelFormat.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2005 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.
+ */
+
+//
+
+// Pixel formats used across the system.
+// These formats might not all be supported by all renderers, for instance
+// skia or SurfaceFlinger are not required to support all of these formats
+// (either as source or destination)
+
+
+#ifndef UI_PIXELFORMAT_H
+#define UI_PIXELFORMAT_H
+
+#include <hardware/hardware.h>
+
+namespace android {
+
+enum {
+    //
+    // these constants need to match those
+    // in graphics/PixelFormat.java & pixelflinger/format.h
+    //
+    PIXEL_FORMAT_UNKNOWN    =   0,
+    PIXEL_FORMAT_NONE       =   0,
+
+    // logical pixel formats used by the SurfaceFlinger -----------------------
+    PIXEL_FORMAT_CUSTOM         = -4,
+        // Custom pixel-format described by a PixelFormatInfo structure
+
+    PIXEL_FORMAT_TRANSLUCENT    = -3,
+        // System chooses a format that supports translucency (many alpha bits)
+
+    PIXEL_FORMAT_TRANSPARENT    = -2,
+        // System chooses a format that supports transparency
+        // (at least 1 alpha bit)
+
+    PIXEL_FORMAT_OPAQUE         = -1,
+        // System chooses an opaque format (no alpha bits required)
+
+    // real pixel formats supported for rendering -----------------------------
+
+    PIXEL_FORMAT_RGBA_8888    = HAL_PIXEL_FORMAT_RGBA_8888,    // 4x8-bit RGBA
+    PIXEL_FORMAT_RGBX_8888    = HAL_PIXEL_FORMAT_RGBX_8888,    // 4x8-bit RGB0
+    PIXEL_FORMAT_RGB_888      = HAL_PIXEL_FORMAT_RGB_888,      // 3x8-bit RGB
+    PIXEL_FORMAT_RGB_565      = HAL_PIXEL_FORMAT_RGB_565,      // 16-bit RGB
+    PIXEL_FORMAT_BGRA_8888    = HAL_PIXEL_FORMAT_BGRA_8888,    // 4x8-bit BGRA
+    PIXEL_FORMAT_RGBA_5551    = 6,                             // 16-bit ARGB
+    PIXEL_FORMAT_RGBA_4444    = 7,                             // 16-bit ARGB
+    PIXEL_FORMAT_RGBA_FP16    = HAL_PIXEL_FORMAT_RGBA_FP16,    // 64-bit RGBA
+    PIXEL_FORMAT_RGBA_1010102 = HAL_PIXEL_FORMAT_RGBA_1010102, // 32-bit RGBA
+};
+
+typedef int32_t PixelFormat;
+
+uint32_t bytesPerPixel(PixelFormat format);
+uint32_t bitsPerPixel(PixelFormat format);
+
+}; // namespace android
+
+#endif // UI_PIXELFORMAT_H
diff --git a/libs/ui/include/ui/Point.h b/libs/ui/include/ui/Point.h
new file mode 100644
index 0000000..d050ede
--- /dev/null
+++ b/libs/ui/include/ui/Point.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2006 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.
+ */
+
+#ifndef ANDROID_UI_POINT
+#define ANDROID_UI_POINT
+
+#include <utils/Flattenable.h>
+#include <utils/TypeHelpers.h>
+
+namespace android {
+
+class Point : public LightFlattenablePod<Point>
+{
+public:
+    int x;
+    int y;
+
+    // we don't provide copy-ctor and operator= on purpose
+    // because we want the compiler generated versions
+
+    // Default constructor doesn't initialize the Point
+    inline Point() {
+    }
+    inline Point(int _x, int _y) : x(_x), y(_y) {
+    }
+
+    inline bool operator == (const Point& rhs) const {
+        return (x == rhs.x) && (y == rhs.y);
+    }
+    inline bool operator != (const Point& rhs) const {
+        return !operator == (rhs);
+    }
+
+    inline bool isOrigin() const {
+        return !(x|y);
+    }
+
+    // operator < defines an order which allows to use points in sorted
+    // vectors.
+    bool operator < (const Point& rhs) const {
+        return y<rhs.y || (y==rhs.y && x<rhs.x);
+    }
+
+    inline Point& operator - () {
+        x = -x;
+        y = -y;
+        return *this;
+    }
+    
+    inline Point& operator += (const Point& rhs) {
+        x += rhs.x;
+        y += rhs.y;
+        return *this;
+    }
+    inline Point& operator -= (const Point& rhs) {
+        x -= rhs.x;
+        y -= rhs.y;
+        return *this;
+    }
+    
+    const Point operator + (const Point& rhs) const {
+        const Point result(x+rhs.x, y+rhs.y);
+        return result;
+    }
+    const Point operator - (const Point& rhs) const {
+        const Point result(x-rhs.x, y-rhs.y);
+        return result;
+    }    
+};
+
+ANDROID_BASIC_TYPES_TRAITS(Point)
+
+}; // namespace android
+
+#endif // ANDROID_UI_POINT
diff --git a/libs/ui/include/ui/Rect.h b/libs/ui/include/ui/Rect.h
new file mode 100644
index 0000000..b50e4ec
--- /dev/null
+++ b/libs/ui/include/ui/Rect.h
@@ -0,0 +1,194 @@
+/*
+ * Copyright (C) 2006 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.
+ */
+
+#ifndef ANDROID_UI_RECT
+#define ANDROID_UI_RECT
+
+#include <utils/Flattenable.h>
+#include <utils/Log.h>
+#include <utils/TypeHelpers.h>
+#include <log/log.h>
+
+#include <ui/FloatRect.h>
+#include <ui/Point.h>
+
+#include <android/rect.h>
+
+namespace android {
+
+class Rect : public ARect, public LightFlattenablePod<Rect>
+{
+public:
+    typedef ARect::value_type value_type;
+
+    static const Rect INVALID_RECT;
+    static const Rect EMPTY_RECT;
+
+    // we don't provide copy-ctor and operator= on purpose
+    // because we want the compiler generated versions
+
+    inline Rect() : Rect(INVALID_RECT) {}
+
+    template <typename T>
+    inline Rect(T w, T h) {
+        if (w > INT32_MAX) {
+            w = INT32_MAX;
+        }
+        if (h > INT32_MAX) {
+            h = INT32_MAX;
+        }
+        left = top = 0;
+        right = static_cast<int32_t>(w);
+        bottom = static_cast<int32_t>(h);
+    }
+
+    inline Rect(int32_t l, int32_t t, int32_t r, int32_t b) {
+        left = l;
+        top = t;
+        right = r;
+        bottom = b;
+    }
+
+    inline Rect(const Point& lt, const Point& rb) {
+        left = lt.x;
+        top = lt.y;
+        right = rb.x;
+        bottom = rb.y;
+    }
+
+    void makeInvalid();
+
+    inline void clear() {
+        left = top = right = bottom = 0;
+    }
+
+    // a valid rectangle has a non negative width and height
+    inline bool isValid() const {
+        return (getWidth() >= 0) && (getHeight() >= 0);
+    }
+
+    // an empty rect has a zero width or height, or is invalid
+    inline bool isEmpty() const {
+        return (getWidth() <= 0) || (getHeight() <= 0);
+    }
+
+    // rectangle's width
+    inline int32_t getWidth() const {
+        return right - left;
+    }
+
+    // rectangle's height
+    inline int32_t getHeight() const {
+        return bottom - top;
+    }
+
+    inline Rect getBounds() const {
+        return Rect(right - left, bottom - top);
+    }
+
+    void setLeftTop(const Point& lt) {
+        left = lt.x;
+        top = lt.y;
+    }
+
+    void setRightBottom(const Point& rb) {
+        right = rb.x;
+        bottom = rb.y;
+    }
+    
+    // the following 4 functions return the 4 corners of the rect as Point
+    Point leftTop() const {
+        return Point(left, top);
+    }
+    Point rightBottom() const {
+        return Point(right, bottom);
+    }
+    Point rightTop() const {
+        return Point(right, top);
+    }
+    Point leftBottom() const {
+        return Point(left, bottom);
+    }
+
+    // comparisons
+    inline bool operator == (const Rect& rhs) const {
+        return (left == rhs.left) && (top == rhs.top) &&
+               (right == rhs.right) && (bottom == rhs.bottom);
+    }
+
+    inline bool operator != (const Rect& rhs) const {
+        return !operator == (rhs);
+    }
+
+    // operator < defines an order which allows to use rectangles in sorted
+    // vectors.
+    bool operator < (const Rect& rhs) const;
+
+    const Rect operator + (const Point& rhs) const;
+    const Rect operator - (const Point& rhs) const;
+
+    Rect& operator += (const Point& rhs) {
+        return offsetBy(rhs.x, rhs.y);
+    }
+    Rect& operator -= (const Point& rhs) {
+        return offsetBy(-rhs.x, -rhs.y);
+    }
+
+    Rect& offsetToOrigin() {
+        right -= left;
+        bottom -= top;
+        left = top = 0;
+        return *this;
+    }
+    Rect& offsetTo(const Point& p) {
+        return offsetTo(p.x, p.y);
+    }
+    Rect& offsetBy(const Point& dp) {
+        return offsetBy(dp.x, dp.y);
+    }
+
+    Rect& offsetTo(int32_t x, int32_t y);
+    Rect& offsetBy(int32_t x, int32_t y);
+
+    bool intersect(const Rect& with, Rect* result) const;
+
+    // Create a new Rect by transforming this one using a graphics HAL
+    // transform.  This rectangle is defined in a coordinate space starting at
+    // the origin and extending to (width, height).  If the transform includes
+    // a ROT90 then the output rectangle is defined in a space extending to
+    // (height, width).  Otherwise the output rectangle is in the same space as
+    // the input.
+    Rect transform(uint32_t xform, int32_t width, int32_t height) const;
+
+    // this calculates (Region(*this) - exclude).bounds() efficiently
+    Rect reduce(const Rect& exclude) const;
+
+    // for backward compatibility
+    inline int32_t width() const { return getWidth(); }
+    inline int32_t height() const { return getHeight(); }
+    inline void set(const Rect& rhs) { operator = (rhs); }
+
+    FloatRect toFloatRect() const {
+        return {static_cast<float>(left), static_cast<float>(top),
+                static_cast<float>(right), static_cast<float>(bottom)};
+    }
+};
+
+ANDROID_BASIC_TYPES_TRAITS(Rect)
+
+}; // namespace android
+
+#endif // ANDROID_UI_RECT
diff --git a/libs/ui/include/ui/Region.h b/libs/ui/include/ui/Region.h
new file mode 100644
index 0000000..7788452
--- /dev/null
+++ b/libs/ui/include/ui/Region.h
@@ -0,0 +1,217 @@
+/*
+ * Copyright (C) 2007 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.
+ */
+
+#ifndef ANDROID_UI_REGION_H
+#define ANDROID_UI_REGION_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Vector.h>
+
+#include <ui/Rect.h>
+#include <utils/Flattenable.h>
+
+namespace android {
+// ---------------------------------------------------------------------------
+
+class String8;
+
+// ---------------------------------------------------------------------------
+class Region : public LightFlattenable<Region>
+{
+public:
+    static const Region INVALID_REGION;
+
+                        Region();
+                        Region(const Region& rhs);
+    explicit            Region(const Rect& rhs);
+                        ~Region();
+
+    static  Region      createTJunctionFreeRegion(const Region& r);
+
+        Region& operator = (const Region& rhs);
+
+    inline  bool        isEmpty() const     { return getBounds().isEmpty(); }
+    inline  bool        isRect() const      { return mStorage.size() == 1; }
+
+    inline  Rect        getBounds() const   { return mStorage[mStorage.size() - 1]; }
+    inline  Rect        bounds() const      { return getBounds(); }
+
+            bool        contains(const Point& point) const;
+            bool        contains(int x, int y) const;
+
+            // the region becomes its bounds
+            Region&     makeBoundsSelf();
+
+            void        clear();
+            void        set(const Rect& r);
+            void        set(int32_t w, int32_t h);
+            void        set(uint32_t w, uint32_t h);
+
+            Region&     orSelf(const Rect& rhs);
+            Region&     xorSelf(const Rect& rhs);
+            Region&     andSelf(const Rect& rhs);
+            Region&     subtractSelf(const Rect& rhs);
+
+            // boolean operators, applied on this
+            Region&     orSelf(const Region& rhs);
+            Region&     xorSelf(const Region& rhs);
+            Region&     andSelf(const Region& rhs);
+            Region&     subtractSelf(const Region& rhs);
+
+            // boolean operators
+    const   Region      merge(const Rect& rhs) const;
+    const   Region      mergeExclusive(const Rect& rhs) const;
+    const   Region      intersect(const Rect& rhs) const;
+    const   Region      subtract(const Rect& rhs) const;
+
+            // boolean operators
+    const   Region      merge(const Region& rhs) const;
+    const   Region      mergeExclusive(const Region& rhs) const;
+    const   Region      intersect(const Region& rhs) const;
+    const   Region      subtract(const Region& rhs) const;
+
+            // these translate rhs first
+            Region&     translateSelf(int dx, int dy);
+            Region&     orSelf(const Region& rhs, int dx, int dy);
+            Region&     xorSelf(const Region& rhs, int dx, int dy);
+            Region&     andSelf(const Region& rhs, int dx, int dy);
+            Region&     subtractSelf(const Region& rhs, int dx, int dy);
+
+            // these translate rhs first
+    const   Region      translate(int dx, int dy) const;
+    const   Region      merge(const Region& rhs, int dx, int dy) const;
+    const   Region      mergeExclusive(const Region& rhs, int dx, int dy) const;
+    const   Region      intersect(const Region& rhs, int dx, int dy) const;
+    const   Region      subtract(const Region& rhs, int dx, int dy) const;
+
+    // convenience operators overloads
+    inline  const Region      operator | (const Region& rhs) const;
+    inline  const Region      operator ^ (const Region& rhs) const;
+    inline  const Region      operator & (const Region& rhs) const;
+    inline  const Region      operator - (const Region& rhs) const;
+    inline  const Region      operator + (const Point& pt) const;
+
+    inline  Region&     operator |= (const Region& rhs);
+    inline  Region&     operator ^= (const Region& rhs);
+    inline  Region&     operator &= (const Region& rhs);
+    inline  Region&     operator -= (const Region& rhs);
+    inline  Region&     operator += (const Point& pt);
+
+
+    // returns true if the regions share the same underlying storage
+    bool isTriviallyEqual(const Region& region) const;
+
+
+    /* various ways to access the rectangle list */
+
+
+    // STL-like iterators
+    typedef Rect const* const_iterator;
+    const_iterator begin() const;
+    const_iterator end() const;
+
+    // returns an array of rect which has the same life-time has this
+    // Region object.
+    Rect const* getArray(size_t* count) const;
+
+    /* no user serviceable parts here... */
+
+            // add a rectangle to the internal list. This rectangle must
+            // be sorted in Y and X and must not make the region invalid.
+            void        addRectUnchecked(int l, int t, int r, int b);
+
+    inline  bool        isFixedSize() const { return false; }
+            size_t      getFlattenedSize() const;
+            status_t    flatten(void* buffer, size_t size) const;
+            status_t    unflatten(void const* buffer, size_t size);
+
+    void        dump(String8& out, const char* what, uint32_t flags=0) const;
+    void        dump(const char* what, uint32_t flags=0) const;
+
+private:
+    class rasterizer;
+    friend class rasterizer;
+
+    Region& operationSelf(const Rect& r, uint32_t op);
+    Region& operationSelf(const Region& r, uint32_t op);
+    Region& operationSelf(const Region& r, int dx, int dy, uint32_t op);
+    const Region operation(const Rect& rhs, uint32_t op) const;
+    const Region operation(const Region& rhs, uint32_t op) const;
+    const Region operation(const Region& rhs, int dx, int dy, uint32_t op) const;
+
+    static void boolean_operation(uint32_t op, Region& dst,
+            const Region& lhs, const Region& rhs, int dx, int dy);
+    static void boolean_operation(uint32_t op, Region& dst,
+            const Region& lhs, const Rect& rhs, int dx, int dy);
+
+    static void boolean_operation(uint32_t op, Region& dst,
+            const Region& lhs, const Region& rhs);
+    static void boolean_operation(uint32_t op, Region& dst,
+            const Region& lhs, const Rect& rhs);
+
+    static void translate(Region& reg, int dx, int dy);
+    static void translate(Region& dst, const Region& reg, int dx, int dy);
+
+    static bool validate(const Region& reg,
+            const char* name, bool silent = false);
+
+    // mStorage is a (manually) sorted array of Rects describing the region
+    // with an extra Rect as the last element which is set to the
+    // bounds of the region. However, if the region is
+    // a simple Rect then mStorage contains only that rect.
+    Vector<Rect> mStorage;
+};
+
+
+const Region Region::operator | (const Region& rhs) const {
+    return merge(rhs);
+}
+const Region Region::operator ^ (const Region& rhs) const {
+    return mergeExclusive(rhs);
+}
+const Region Region::operator & (const Region& rhs) const {
+    return intersect(rhs);
+}
+const Region Region::operator - (const Region& rhs) const {
+    return subtract(rhs);
+}
+const Region Region::operator + (const Point& pt) const {
+    return translate(pt.x, pt.y);
+}
+
+
+Region& Region::operator |= (const Region& rhs) {
+    return orSelf(rhs);
+}
+Region& Region::operator ^= (const Region& rhs) {
+    return xorSelf(rhs);
+}
+Region& Region::operator &= (const Region& rhs) {
+    return andSelf(rhs);
+}
+Region& Region::operator -= (const Region& rhs) {
+    return subtractSelf(rhs);
+}
+Region& Region::operator += (const Point& pt) {
+    return translateSelf(pt.x, pt.y);
+}
+// ---------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_UI_REGION_H
+
diff --git a/libs/ui/include/ui/UiConfig.h b/libs/ui/include/ui/UiConfig.h
new file mode 100644
index 0000000..fcf8ed5
--- /dev/null
+++ b/libs/ui/include/ui/UiConfig.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+#ifndef ANDROID_UI_CONFIG_H
+#define ANDROID_UI_CONFIG_H
+
+#include <utils/String8.h>
+
+namespace android {
+
+// Append the libui configuration details to configStr.
+void appendUiConfigString(String8& configStr);
+
+}; // namespace android
+
+#endif /*ANDROID_UI_CONFIG_H*/