1 files changed, 5 insertions, 1 deletions
diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/HwcBufferCache.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/HwcBufferCache.h
index db874875c4..f84ddd3225 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/HwcBufferCache.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/HwcBufferCache.h
@@ -57,11 +57,15 @@ public:
     void getHwcBuffer(int slot, const sp<GraphicBuffer>& buffer, uint32_t* outSlot,
                       sp<GraphicBuffer>* outBuffer);
 
+    // Special caching slot for the layer caching feature.
+    static const constexpr size_t FLATTENER_CACHING_SLOT = BufferQueue::NUM_BUFFER_SLOTS;
+
 private:
     // an array where the index corresponds to a slot and the value corresponds to a (counter,
     // buffer) pair. "counter" is a unique value that indicates the last time this slot was updated
     // or used and allows us to keep track of the least-recently used buffer.
-    wp<GraphicBuffer> mBuffers[BufferQueue::NUM_BUFFER_SLOTS];
+    static const constexpr size_t kMaxLayerBufferCount = BufferQueue::NUM_BUFFER_SLOTS + 1;
+    wp<GraphicBuffer> mBuffers[kMaxLayerBufferCount];
     uint32_t mNextSlot = 0;
     bool mReduceSlotsForWideVideo = false;
 };