diff --git a/drmhwcomposer.h b/drmhwcomposer.h
index 2f36ad8..e0f8d2b 100644
--- a/drmhwcomposer.h
+++ b/drmhwcomposer.h
@@ -155,6 +155,11 @@
   buffer_handle_t get_usable_handle() const {
     return handle.get() != NULL ? handle.get() : sf_handle;
   }
+
+  bool protected_usage() const {
+    return (gralloc_buffer_usage & GRALLOC_USAGE_PROTECTED) ==
+           GRALLOC_USAGE_PROTECTED;
+  }
 };
 
 struct DrmHwcDisplayContents {