812ed0644f
This change allows producers to set a generation number on a BufferQueue. This number will be embedded in any new GraphicBuffers created in that BufferQueue, and attempts to attach buffers which have a different generation number will fail. It also plumbs the setGenerationNumber method through Surface, with the additional effect that any buffers attached to the Surface after setting a new generation number will automatically be updated with the new number (as opposed to failing, as would happen on through IGBP). Bug: 20923096 Change-Id: I32bf726b035f99c3e5834beaf76afb9f01adcbc2
68 lines
2.6 KiB
C++
68 lines
2.6 KiB
C++
/*
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* Copyright 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_MONITORED_PRODUCER_H
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#define ANDROID_MONITORED_PRODUCER_H
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#include <gui/IGraphicBufferProducer.h>
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namespace android {
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class IProducerListener;
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class NativeHandle;
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class SurfaceFlinger;
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// MonitoredProducer wraps an IGraphicBufferProducer so that SurfaceFlinger will
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// be notified upon its destruction
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class MonitoredProducer : public IGraphicBufferProducer {
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public:
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MonitoredProducer(const sp<IGraphicBufferProducer>& producer,
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const sp<SurfaceFlinger>& flinger);
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virtual ~MonitoredProducer();
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// From IGraphicBufferProducer
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virtual status_t requestBuffer(int slot, sp<GraphicBuffer>* buf);
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virtual status_t setBufferCount(int bufferCount);
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virtual status_t dequeueBuffer(int* slot, sp<Fence>* fence, bool async,
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uint32_t w, uint32_t h, PixelFormat format, uint32_t usage);
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virtual status_t detachBuffer(int slot);
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virtual status_t detachNextBuffer(sp<GraphicBuffer>* outBuffer,
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sp<Fence>* outFence);
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virtual status_t attachBuffer(int* outSlot,
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const sp<GraphicBuffer>& buffer);
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virtual status_t queueBuffer(int slot, const QueueBufferInput& input,
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QueueBufferOutput* output);
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virtual void cancelBuffer(int slot, const sp<Fence>& fence);
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virtual int query(int what, int* value);
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virtual status_t connect(const sp<IProducerListener>& token, int api,
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bool producerControlledByApp, QueueBufferOutput* output);
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virtual status_t disconnect(int api);
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virtual status_t setSidebandStream(const sp<NativeHandle>& stream);
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virtual void allocateBuffers(bool async, uint32_t width, uint32_t height,
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PixelFormat format, uint32_t usage);
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virtual status_t allowAllocation(bool allow);
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virtual status_t setGenerationNumber(uint32_t generationNumber);
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virtual IBinder* onAsBinder();
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private:
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sp<IGraphicBufferProducer> mProducer;
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sp<SurfaceFlinger> mFlinger;
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};
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}; // namespace android
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#endif // ANDROID_MONITORED_PRODUCER_H
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