diff --git a/libs/ui/FramebufferNativeWindow.cpp b/libs/ui/FramebufferNativeWindow.cpp
index 8c8fd6b..406c072 100644
--- a/libs/ui/FramebufferNativeWindow.cpp
+++ b/libs/ui/FramebufferNativeWindow.cpp
@@ -63,6 +63,11 @@
 };
 
 
+android_native_buffer_t const* FramebufferNativeWindow::getBackbuffer() const {
+    return static_cast<android_native_buffer_t const*>(buffers[mLastDequeued].get());
+}
+
+
 /*
  * This implements the (main) framebuffer management. This class is used
  * mostly by SurfaceFlinger, but also by command line GL application.
@@ -165,6 +170,7 @@
     if (self->mBufferHead >= self->mNumBuffers)
         self->mBufferHead = 0;
 
+    self->mLastDequeued = index;
     *buffer = self->buffers[index].get();
 
     return 0;