diff --git a/libs/nativewindow/AHardwareBuffer.cpp b/libs/nativewindow/AHardwareBuffer.cpp
index 3fbab17..2d9fc93 100644
--- a/libs/nativewindow/AHardwareBuffer.cpp
+++ b/libs/nativewindow/AHardwareBuffer.cpp
@@ -428,6 +428,14 @@
     return reinterpret_cast<GraphicBuffer*>(buffer);
 }
 
+const ANativeWindowBuffer* AHardwareBuffer_to_ANativeWindowBuffer(const AHardwareBuffer* buffer) {
+    return AHardwareBuffer_to_GraphicBuffer(buffer)->getNativeBuffer();
+}
+
+ANativeWindowBuffer* AHardwareBuffer_to_ANativeWindowBuffer(AHardwareBuffer* buffer) {
+    return AHardwareBuffer_to_GraphicBuffer(buffer)->getNativeBuffer();
+}
+
 AHardwareBuffer* AHardwareBuffer_from_GraphicBuffer(GraphicBuffer* buffer) {
     return reinterpret_cast<AHardwareBuffer*>(buffer);
 }
diff --git a/libs/nativewindow/include/private/android/AHardwareBufferHelpers.h b/libs/nativewindow/include/private/android/AHardwareBufferHelpers.h
index 612ee80..ee5da84 100644
--- a/libs/nativewindow/include/private/android/AHardwareBufferHelpers.h
+++ b/libs/nativewindow/include/private/android/AHardwareBufferHelpers.h
@@ -28,6 +28,7 @@
 #include <stdint.h>
 
 struct AHardwareBuffer;
+struct ANativeWindowBuffer;
 
 namespace android {
 
@@ -44,8 +45,11 @@
 class GraphicBuffer;
 const GraphicBuffer* AHardwareBuffer_to_GraphicBuffer(const AHardwareBuffer* buffer);
 GraphicBuffer* AHardwareBuffer_to_GraphicBuffer(AHardwareBuffer* buffer);
-AHardwareBuffer* AHardwareBuffer_from_GraphicBuffer(GraphicBuffer* buffer);
 
+const ANativeWindowBuffer* AHardwareBuffer_to_ANativeWindowBuffer(const AHardwareBuffer* buffer);
+ANativeWindowBuffer* AHardwareBuffer_to_ANativeWindowBuffer(AHardwareBuffer* buffer);
+
+AHardwareBuffer* AHardwareBuffer_from_GraphicBuffer(GraphicBuffer* buffer);
 } // namespace android
 
 #endif // ANDROID_PRIVATE_NATIVE_AHARDWARE_BUFFER_HELPERS_H