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
127 lines
4.1 KiB
C++
127 lines
4.1 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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#include "MessageQueue.h"
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#include "MonitoredProducer.h"
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#include "SurfaceFlinger.h"
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namespace android {
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MonitoredProducer::MonitoredProducer(const sp<IGraphicBufferProducer>& producer,
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const sp<SurfaceFlinger>& flinger) :
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mProducer(producer),
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mFlinger(flinger) {}
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MonitoredProducer::~MonitoredProducer() {
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// Remove ourselves from SurfaceFlinger's list. We do this asynchronously
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// because we don't know where this destructor is called from. It could be
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// called with the mStateLock held, leading to a dead-lock (it actually
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// happens).
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class MessageCleanUpList : public MessageBase {
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public:
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MessageCleanUpList(const sp<SurfaceFlinger>& flinger,
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const wp<IBinder>& producer)
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: mFlinger(flinger), mProducer(producer) {}
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virtual ~MessageCleanUpList() {}
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virtual bool handler() {
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Mutex::Autolock _l(mFlinger->mStateLock);
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mFlinger->mGraphicBufferProducerList.remove(mProducer);
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return true;
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}
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private:
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sp<SurfaceFlinger> mFlinger;
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wp<IBinder> mProducer;
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};
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mFlinger->postMessageAsync(new MessageCleanUpList(mFlinger, asBinder(this)));
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}
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status_t MonitoredProducer::requestBuffer(int slot, sp<GraphicBuffer>* buf) {
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return mProducer->requestBuffer(slot, buf);
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}
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status_t MonitoredProducer::setBufferCount(int bufferCount) {
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return mProducer->setBufferCount(bufferCount);
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}
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status_t MonitoredProducer::dequeueBuffer(int* slot, sp<Fence>* fence,
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bool async, uint32_t w, uint32_t h, PixelFormat format, uint32_t usage) {
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return mProducer->dequeueBuffer(slot, fence, async, w, h, format, usage);
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}
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status_t MonitoredProducer::detachBuffer(int slot) {
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return mProducer->detachBuffer(slot);
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}
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status_t MonitoredProducer::detachNextBuffer(sp<GraphicBuffer>* outBuffer,
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sp<Fence>* outFence) {
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return mProducer->detachNextBuffer(outBuffer, outFence);
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}
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status_t MonitoredProducer::attachBuffer(int* outSlot,
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const sp<GraphicBuffer>& buffer) {
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return mProducer->attachBuffer(outSlot, buffer);
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}
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status_t MonitoredProducer::queueBuffer(int slot, const QueueBufferInput& input,
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QueueBufferOutput* output) {
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return mProducer->queueBuffer(slot, input, output);
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}
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void MonitoredProducer::cancelBuffer(int slot, const sp<Fence>& fence) {
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mProducer->cancelBuffer(slot, fence);
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}
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int MonitoredProducer::query(int what, int* value) {
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return mProducer->query(what, value);
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}
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status_t MonitoredProducer::connect(const sp<IProducerListener>& listener,
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int api, bool producerControlledByApp, QueueBufferOutput* output) {
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return mProducer->connect(listener, api, producerControlledByApp, output);
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}
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status_t MonitoredProducer::disconnect(int api) {
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return mProducer->disconnect(api);
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}
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status_t MonitoredProducer::setSidebandStream(const sp<NativeHandle>& stream) {
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return mProducer->setSidebandStream(stream);
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}
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void MonitoredProducer::allocateBuffers(bool async, uint32_t width,
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uint32_t height, PixelFormat format, uint32_t usage) {
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mProducer->allocateBuffers(async, width, height, format, usage);
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}
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status_t MonitoredProducer::allowAllocation(bool allow) {
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return mProducer->allowAllocation(allow);
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}
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status_t MonitoredProducer::setGenerationNumber(uint32_t generationNumber) {
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return mProducer->setGenerationNumber(generationNumber);
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}
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IBinder* MonitoredProducer::onAsBinder() {
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return IInterface::asBinder(mProducer).get();
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}
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// ---------------------------------------------------------------------------
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}; // namespace android
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