diff --git a/libs/ui/GraphicBuffer.cpp b/libs/ui/GraphicBuffer.cpp
index efe2d78..6a5c8a9 100644
--- a/libs/ui/GraphicBuffer.cpp
+++ b/libs/ui/GraphicBuffer.cpp
@@ -226,6 +226,14 @@
     return mIndex;
 }
 
+void GraphicBuffer::setVerticalStride(uint32_t vstride) {
+    mVStride = vstride;
+}
+
+uint32_t GraphicBuffer::getVerticalStride() const {
+    return mVStride;
+}
+
 // ---------------------------------------------------------------------------
 
 }; // namespace android