diff --git a/libs/surfaceflinger/Buffer.h b/libs/surfaceflinger/Buffer.h
new file mode 100644
index 0000000..79f4eeb
--- /dev/null
+++ b/libs/surfaceflinger/Buffer.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_LAYER_BITMAP_H
+#define ANDROID_LAYER_BITMAP_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <hardware/gralloc.h>
+
+#include <utils/Atomic.h>
+
+#include <ui/PixelFormat.h>
+#include <ui/Rect.h>
+#include <ui/Surface.h>
+
+#include <pixelflinger/pixelflinger.h>
+
+#include <private/ui/SharedBufferStack.h>
+#include <private/ui/SurfaceBuffer.h>
+
+class copybit_image_t;
+struct android_native_buffer_t;
+
+namespace android {
+
+// ===========================================================================
+// Buffer
+// ===========================================================================
+
+class NativeBuffer;
+
+class Buffer : public SurfaceBuffer
+{
+public:
+    enum {
+        DONT_CLEAR  = 0x00000001,
+        SECURE      = 0x00000004
+    };
+
+    Buffer();
+
+    // creates w * h buffer
+    Buffer(uint32_t w, uint32_t h, PixelFormat format,
+            uint32_t reqUsage, uint32_t flags = 0);
+
+    // return status
+    status_t initCheck() const;
+
+    uint32_t getWidth() const           { return width; }
+    uint32_t getHeight() const          { return height; }
+    uint32_t getStride() const          { return stride; }
+    uint32_t getUsage() const           { return usage; }
+    PixelFormat getPixelFormat() const  { return format; }
+    Rect getBounds() const              { return Rect(width, height); }
+    
+    status_t lock(GGLSurface* surface, uint32_t usage);
+    
+    android_native_buffer_t* getNativeBuffer() const;
+    
+    status_t reallocate(uint32_t w, uint32_t h, PixelFormat f,
+            uint32_t reqUsage, uint32_t flags);
+
+private:
+    friend class LightRefBase<Buffer>;
+    Buffer(const Buffer& rhs);
+    virtual ~Buffer();
+    Buffer& operator = (const Buffer& rhs);
+    const Buffer& operator = (const Buffer& rhs) const;
+
+    status_t initSize(uint32_t w, uint32_t h, PixelFormat format,
+            uint32_t reqUsage, uint32_t flags);
+
+    ssize_t     mInitCheck;
+    uint32_t    mVStride;
+};
+
+}; // namespace android
+
+#endif // ANDROID_LAYER_BITMAP_H