Improve the VSYNC api a bit.
- add the ability to set the vsync delivery rate, when the rate is
set to N>1 (ie: receive every N vsync), SF process' is woken up for
all of vsync, but clients only see the every N events.
- add the concept of one-shot vsync events, with a call-back
to request the next one. currently the call-back is a binder IPC.
Change-Id: I09f71df0b0ba0d88ed997645e2e2497d553c9a1b
diff --git a/services/surfaceflinger/DisplayEventConnection.h b/services/surfaceflinger/DisplayEventConnection.h
index 46cf64b..cc3ee36 100644
--- a/services/surfaceflinger/DisplayEventConnection.h
+++ b/services/surfaceflinger/DisplayEventConnection.h
@@ -32,13 +32,13 @@
// ---------------------------------------------------------------------------
class BitTube;
-class SurfaceFlinger;
+class EventThread;
// ---------------------------------------------------------------------------
class DisplayEventConnection : public BnDisplayEventConnection {
public:
- DisplayEventConnection(const sp<SurfaceFlinger>& flinger);
+ DisplayEventConnection(const sp<EventThread>& flinger);
status_t postEvent(const DisplayEventReceiver::Event& event);
@@ -46,8 +46,10 @@
virtual ~DisplayEventConnection();
virtual void onFirstRef();
virtual sp<BitTube> getDataChannel() const;
+ virtual void setVsyncRate(uint32_t count);
+ virtual void requestNextVsync(); // asynchronous
- sp<SurfaceFlinger> const mFlinger;
+ sp<EventThread> const mEventThread;
sp<BitTube> const mChannel;
};