From f0eaf25e9247edf4d124bedaeb863f7abdf35a3e Mon Sep 17 00:00:00 2001 From: Dan Stoza Date: Fri, 21 Mar 2014 13:05:51 -0700 Subject: BufferQueue: Add producer buffer-released callback Add a callback to the producer side, onBufferReleased, which will be called every time the consumer releases a buffer back to the BufferQueue. This will enable a buffer stream splitter to work autonomously without having to block on dequeueBuffer. The binder object used for the callback replaces the generic IBinder token that was passed into IGraphicBufferProducer::connect to detect the death of the producer. If a producer does not wish to listen for buffer release events, it can pass in an instance of the DummyProducerListener class defined in IProducerListener.h, if it even cares about death events (BufferQueue doesn't enforce the token being non-NULL, though perhaps we should). Change-Id: I23935760673524abeafea2b58dccc3583b368710 --- include/gui/BufferQueue.h | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) (limited to 'include/gui/BufferQueue.h') diff --git a/include/gui/BufferQueue.h b/include/gui/BufferQueue.h index f74dc26245..85bf5a9aca 100644 --- a/include/gui/BufferQueue.h +++ b/include/gui/BufferQueue.h @@ -232,16 +232,8 @@ public: // will usually be the one obtained from dequeueBuffer. virtual void cancelBuffer(int buf, const sp& fence); - // connect attempts to connect a producer API to the BufferQueue. This - // must be called before any other IGraphicBufferProducer methods are - // called except for getAllocator. A consumer must already be connected. - // - // This method will fail if connect was previously called on the - // BufferQueue and no corresponding disconnect call was made (i.e. if - // it's still connected to a producer). - // - // APIs are enumerated in window.h (e.g. NATIVE_WINDOW_API_CPU). - virtual status_t connect(const sp& token, + // See IGraphicBufferProducer::connect + virtual status_t connect(const sp& listener, int api, bool producerControlledByApp, QueueBufferOutput* output); // disconnect attempts to disconnect a producer API from the BufferQueue. -- cgit v1.2.3-59-g8ed1b