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diff --git a/msm8909/sdm/libs/core/display_virtual.h b/msm8909/sdm/libs/core/display_virtual.h
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+/*
+* Copyright (c) 2014 - 2016, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without modification, are permitted
+* provided that the following conditions are met:
+*    * Redistributions of source code must retain the above copyright notice, this list of
+*      conditions and the following disclaimer.
+*    * Redistributions in binary form must reproduce the above copyright notice, this list of
+*      conditions and the following disclaimer in the documentation and/or other materials provided
+*      with the distribution.
+*    * Neither the name of The Linux Foundation nor the names of its contributors may be used to
+*      endorse or promote products derived from this software without specific prior written
+*      permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef __DISPLAY_VIRTUAL_H__
+#define __DISPLAY_VIRTUAL_H__
+
+#include <private/hw_info_types.h>
+#include "display_base.h"
+
+namespace sdm {
+
+class HWVirtualInterface;
+
+class DisplayVirtual : public DisplayBase {
+ public:
+  DisplayVirtual(DisplayEventHandler *event_handler, HWInfoInterface *hw_info_intf,
+                 BufferSyncHandler *buffer_sync_handler, BufferAllocator *buffer_allocator,
+                 CompManager *comp_manager);
+  virtual DisplayError Init();
+  virtual DisplayError Prepare(LayerStack *layer_stack);
+  virtual DisplayError GetNumVariableInfoConfigs(uint32_t *count);
+  virtual DisplayError GetConfig(uint32_t index, DisplayConfigVariableInfo *variable_info);
+  virtual DisplayError GetActiveConfig(uint32_t *index);
+  virtual DisplayError SetActiveConfig(uint32_t index) {
+    return kErrorNotSupported;
+  }
+  virtual DisplayError SetActiveConfig(DisplayConfigVariableInfo *variable_info);
+  virtual DisplayError SetMixerResolution(uint32_t width, uint32_t height) {
+    return kErrorNotSupported;
+  }
+  virtual DisplayError SetVSyncState(bool enable) {
+    return kErrorNotSupported;
+  }
+  virtual DisplayError SetRefreshRate(uint32_t refresh_rate) {
+    return kErrorNotSupported;
+  }
+  virtual DisplayError GetMixerResolution(uint32_t *width, uint32_t *height) {
+    return kErrorNotSupported;
+  }
+  virtual DisplayError SetDetailEnhancerData(const DisplayDetailEnhancerData &de_data) {
+    return kErrorNotSupported;
+  }
+  virtual DisplayError ValidateGPUTargetParams() {
+    // TODO(user): Validate GPU target for virtual display when query display attributes
+    // on virtual display is functional.
+    return kErrorNone;
+  }
+};
+
+}  // namespace sdm
+
+#endif  // __DISPLAY_VIRTUAL_H__
+