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diff --git a/services/surfaceflinger/ExSurfaceFlinger/ExVirtualDisplaySurface.cpp b/services/surfaceflinger/ExSurfaceFlinger/ExVirtualDisplaySurface.cpp
new file mode 100644
index 0000000..e4ad758
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+++ b/services/surfaceflinger/ExSurfaceFlinger/ExVirtualDisplaySurface.cpp
@@ -0,0 +1,93 @@
+/* Copyright (c) 2015, 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.
+ */
+
+#include "ExVirtualDisplaySurface.h"
+#ifdef QTI_BSP
+#include <gralloc_priv.h>
+#endif
+
+namespace android {
+
+#define VDS_LOGE(msg, ...) ALOGE("[%s] " msg, \
+        mDisplayName.string(), ##__VA_ARGS__)
+#define VDS_LOGW_IF(cond, msg, ...) ALOGW_IF(cond, "[%s] " msg, \
+        mDisplayName.string(), ##__VA_ARGS__)
+#define VDS_LOGV(msg, ...) ALOGV("[%s] " msg, \
+        mDisplayName.string(), ##__VA_ARGS__)
+
+ExVirtualDisplaySurface::ExVirtualDisplaySurface(HWComposer& hwc, int32_t dispId,
+        const sp<IGraphicBufferProducer>& sink,
+        const sp<IGraphicBufferProducer>& bqProducer,
+        const sp<IGraphicBufferConsumer>& bqConsumer,
+        const String8& name,
+        bool secure)
+:   VirtualDisplaySurface(hwc, dispId, sink, bqProducer, bqConsumer, name),
+   mSecure(secure) {
+   sink->query(NATIVE_WINDOW_CONSUMER_USAGE_BITS, &mSinkUsage);
+   mSinkUsage |= GRALLOC_USAGE_HW_COMPOSER;
+   setOutputUsage(mSinkUsage);
+}
+
+status_t ExVirtualDisplaySurface::beginFrame(bool mustRecompose) {
+    if (mDisplayId < 0)
+        return NO_ERROR;
+
+    mMustRecompose = mustRecompose;
+    /* For WFD use cases we must always set the recompose flag in order
+     * to support pause/resume functionality
+     */
+    if (mOutputUsage & GRALLOC_USAGE_HW_VIDEO_ENCODER) {
+        mMustRecompose = true;
+    }
+
+    VDS_LOGW_IF(mDbgState != DBG_STATE_IDLE,
+            "Unexpected beginFrame() in %s state", dbgStateStr());
+    mDbgState = DBG_STATE_BEGUN;
+
+    return refreshOutputBuffer();
+
+}
+
+/* Helper to update the output usage when the display is secure */
+void ExVirtualDisplaySurface::setOutputUsage(uint32_t /*flag*/) {
+    mOutputUsage = mSinkUsage;
+    if (mSecure && (mOutputUsage & GRALLOC_USAGE_HW_VIDEO_ENCODER)) {
+        /* TODO: Currently, the framework can only say whether the display
+         * and its subsequent session are secure or not. However, there is
+         * no mechanism to distinguish the different levels of security.
+         * The current solution assumes WV L3 protection.
+         */
+        mOutputUsage |= GRALLOC_USAGE_PROTECTED;
+#ifdef QTI_BSP
+        mOutputUsage |= GRALLOC_USAGE_PRIVATE_MM_HEAP |
+                        GRALLOC_USAGE_PRIVATE_UNCACHED;
+#endif
+    }
+}
+
+}; // namespace android