1 files changed, 16 insertions, 2 deletions
diff --git a/graphics/java/android/graphics/HardwareRenderer.java b/graphics/java/android/graphics/HardwareRenderer.java
index b6b2d4e1c46a..3f3ad578e8d7 100644
--- a/graphics/java/android/graphics/HardwareRenderer.java
+++ b/graphics/java/android/graphics/HardwareRenderer.java
@@ -286,10 +286,24 @@ public class HardwareRenderer {
      *                non-null then {@link Surface#isValid()} must be true.
      */
     public void setSurface(@Nullable Surface surface) {
+        setSurface(surface, false);
+    }
+
+    /**
+     * See {@link #setSurface(Surface)}
+     *
+     * @hide
+     * @param discardBuffer determines whether the surface will attempt to preserve its contents
+     *                      between frames.  If set to true the renderer will attempt to preserve
+     *                      the contents of the buffer between frames if the implementation allows
+     *                      it.  If set to false no attempt will be made to preserve the buffer's
+     *                      contents between frames.
+     */
+    public void setSurface(@Nullable Surface surface, boolean discardBuffer) {
         if (surface != null && !surface.isValid()) {
             throw new IllegalArgumentException("Surface is invalid. surface.isValid() == false.");
         }
-        nSetSurface(mNativeProxy, surface);
+        nSetSurface(mNativeProxy, surface, discardBuffer);
     }
 
     /**
@@ -1084,7 +1098,7 @@ public class HardwareRenderer {
 
     private static native void nSetName(long nativeProxy, String name);
 
-    private static native void nSetSurface(long nativeProxy, Surface window);
+    private static native void nSetSurface(long nativeProxy, Surface window, boolean discardBuffer);
 
     private static native boolean nPause(long nativeProxy);