1 files changed, 16 insertions, 0 deletions
diff --git a/graphics/java/android/graphics/BLASTBufferQueue.java b/graphics/java/android/graphics/BLASTBufferQueue.java
index 4534d36342db..3badb5f2b4d9 100644
--- a/graphics/java/android/graphics/BLASTBufferQueue.java
+++ b/graphics/java/android/graphics/BLASTBufferQueue.java
@@ -31,6 +31,8 @@ public final class BLASTBufferQueue {
             long height, int format);
     private static native void nativeDestroy(long ptr);
     private static native Surface nativeGetSurface(long ptr, boolean includeSurfaceControlHandle);
+    private static native void nativeSetUndequeuedBufferCount(long ptr, int count);
+    private static native int nativeGetUndequeuedBufferCount(long ptr);
     private static native void nativeSetNextTransaction(long ptr, long transactionPtr);
     private static native void nativeUpdate(long ptr, long surfaceControl, long width, long height,
             int format);
@@ -78,6 +80,20 @@ public final class BLASTBufferQueue {
     }
 
     /**
+     * Set undequeued buffer count
+     */
+    public void setUndequeuedBufferCount(int count) {
+        nativeSetUndequeuedBufferCount(mNativeObject, count);
+    }
+
+    /**
+     * @return the count of undequeued buffer
+     */
+    public int getUndequeuedBufferCount() {
+        return nativeGetUndequeuedBufferCount(mNativeObject);
+    }
+
+    /**
      * Send the transaction to BBQ so the next frame can be added and not applied immediately.
      * This gives the caller a chance to apply the transaction when it's ready.
      * @param t The transaction to add the frame to. This can be null to clear the transaction.