Add interface for controlling single buffer auto refresh
- Adds a boolean to BufferQueue that controls whether or not auto
refresh is enabled in SurfaceFlinger when in single buffer mode.
- Adds plumbing up to ANativeWindow.
- When enabled, it will cache the shared buffer slot in Surface in
order to prevent the Binder transaction with SurfaceFlinger.
Bug 24940410
Change-Id: I83142afdc00e203f198a32288f071d926f8fda95
diff --git a/include/gui/IGraphicBufferProducer.h b/include/gui/IGraphicBufferProducer.h
index 265728f..f6b4230 100644
--- a/include/gui/IGraphicBufferProducer.h
+++ b/include/gui/IGraphicBufferProducer.h
@@ -531,6 +531,14 @@
// the producer and consumer to simultaneously access the same buffer.
virtual status_t setSingleBufferMode(bool singleBufferMode) = 0;
+ // Used to enable/disable auto-refresh.
+ //
+ // Auto refresh has no effect outside of single buffer mode. In single
+ // buffer mode, when enabled, it indicates to the consumer that it should
+ // attempt to acquire buffers even if it is not aware of any being
+ // available.
+ virtual status_t setAutoRefresh(bool autoRefresh) = 0;
+
// Sets how long dequeueBuffer will wait for a buffer to become available
// before returning an error (TIMED_OUT).
//