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diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.h b/services/surfaceflinger/DisplayHardware/HWComposer.h
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+++ b/services/surfaceflinger/DisplayHardware/HWComposer.h
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+/*
+ * 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.
+ */
+
+#ifndef ANDROID_SF_HWCOMPOSER_H
+#define ANDROID_SF_HWCOMPOSER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <EGL/egl.h>
+
+#include <hardware/hwcomposer.h>
+
+namespace android {
+// ---------------------------------------------------------------------------
+
+class String8;
+
+class HWComposer
+{
+public:
+
+    HWComposer();
+    ~HWComposer();
+
+    status_t initCheck() const;
+
+    // tells the HAL what the framebuffer is
+    void setFrameBuffer(EGLDisplay dpy, EGLSurface sur);
+
+    // create a work list for numLayers layer
+    status_t createWorkList(size_t numLayers);
+
+    // Asks the HAL what it can do
+    status_t prepare() const;
+
+    // commits the list
+    status_t commit() const;
+
+    // release hardware resources
+    status_t release() const;
+
+    size_t getNumLayers() const;
+    hwc_layer_t* getLayers() const;
+
+    // for debugging
+    void dump(String8& out, char* scratch, size_t SIZE) const;
+
+private:
+    hw_module_t const*      mModule;
+    hwc_composer_device_t*  mHwc;
+    hwc_layer_list_t*       mList;
+    size_t                  mCapacity;
+    hwc_display_t           mDpy;
+    hwc_surface_t           mSur;
+};
+
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_SF_HWCOMPOSER_H