BufferQueue/SF: Add OccupancyTracker
Adds an OccupancyTracker to BufferQueue. This module keeps track of
how many buffers are in the queue over time, which, in combination
with various aggregation of these statistics, allows SurfaceFlinger
to report what fraction of the time a given layer was double- or
triple-buffered.
Change-Id: Ida6e967dc5483c00a633e9fe03998e420dd88502
diff --git a/include/gui/BufferQueueConsumer.h b/include/gui/BufferQueueConsumer.h
index b2daae4..a9fce1a 100644
--- a/include/gui/BufferQueueConsumer.h
+++ b/include/gui/BufferQueueConsumer.h
@@ -136,6 +136,10 @@
// Retrieve the sideband buffer stream, if any.
virtual sp<NativeHandle> getSidebandStream() const;
+ // See IGraphicBufferConsumer::getOccupancyHistory
+ virtual status_t getOccupancyHistory(bool forceFlush,
+ std::vector<OccupancyTracker::Segment>* outHistory) override;
+
// dump our state in a String
virtual void dump(String8& result, const char* prefix) const;