diff --git a/services/surfaceflinger/FrontEnd/LayerSnapshot.cpp b/services/surfaceflinger/FrontEnd/LayerSnapshot.cpp
index 4e69565..dbb7fbf 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshot.cpp
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshot.cpp
@@ -168,4 +168,11 @@
     return debug.str();
 }
 
+FloatRect LayerSnapshot::sourceBounds() const {
+    if (!externalTexture) {
+        return geomLayerBounds;
+    }
+    return geomBufferSize.toFloatRect();
+}
+
 } // namespace android::surfaceflinger::frontend
diff --git a/services/surfaceflinger/FrontEnd/LayerSnapshot.h b/services/surfaceflinger/FrontEnd/LayerSnapshot.h
index 159410f..7141f0a 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshot.h
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshot.h
@@ -103,6 +103,7 @@
     std::string getDebugString() const;
     std::string getIsVisibleReason() const;
     bool hasInputInfo() const;
+    FloatRect sourceBounds() const;
 };
 
 } // namespace android::surfaceflinger::frontend