| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #undef LOG_TAG |
| #define LOG_TAG "BLASTBufferQueue" |
| |
| #define ATRACE_TAG ATRACE_TAG_GRAPHICS |
| //#define LOG_NDEBUG 0 |
| |
| #include <gui/BLASTBufferQueue.h> |
| #include <gui/BufferItemConsumer.h> |
| #include <gui/BufferQueueConsumer.h> |
| #include <gui/BufferQueueCore.h> |
| #include <gui/BufferQueueProducer.h> |
| #include <gui/GLConsumer.h> |
| #include <gui/IProducerListener.h> |
| #include <gui/Surface.h> |
| #include <utils/Singleton.h> |
| #include <utils/Trace.h> |
| |
| #include <private/gui/ComposerService.h> |
| |
| #include <chrono> |
| |
| using namespace std::chrono_literals; |
| |
| namespace { |
| inline const char* toString(bool b) { |
| return b ? "true" : "false"; |
| } |
| } // namespace |
| |
| namespace android { |
| |
| // Macros to include adapter info in log messages |
| #define BQA_LOGV(x, ...) \ |
| ALOGV("[%s](f:%u,a:%u) " x, mName.c_str(), mNumFrameAvailable, mNumAcquired, ##__VA_ARGS__) |
| // enable logs for a single layer |
| //#define BQA_LOGV(x, ...) \ |
| // ALOGV_IF((strstr(mName.c_str(), "SurfaceView") != nullptr), "[%s](f:%u,a:%u) " x, \ |
| // mName.c_str(), mNumFrameAvailable, mNumAcquired, ##__VA_ARGS__) |
| #define BQA_LOGE(x, ...) \ |
| ALOGE("[%s](f:%u,a:%u) " x, mName.c_str(), mNumFrameAvailable, mNumAcquired, ##__VA_ARGS__) |
| |
| void BLASTBufferItemConsumer::onDisconnect() { |
| Mutex::Autolock lock(mMutex); |
| mPreviouslyConnected = mCurrentlyConnected; |
| mCurrentlyConnected = false; |
| if (mPreviouslyConnected) { |
| mDisconnectEvents.push(mCurrentFrameNumber); |
| } |
| mFrameEventHistory.onDisconnect(); |
| } |
| |
| void BLASTBufferItemConsumer::addAndGetFrameTimestamps(const NewFrameEventsEntry* newTimestamps, |
| FrameEventHistoryDelta* outDelta) { |
| Mutex::Autolock lock(mMutex); |
| if (newTimestamps) { |
| // BufferQueueProducer only adds a new timestamp on |
| // queueBuffer |
| mCurrentFrameNumber = newTimestamps->frameNumber; |
| mFrameEventHistory.addQueue(*newTimestamps); |
| } |
| if (outDelta) { |
| // frame event histories will be processed |
| // only after the producer connects and requests |
| // deltas for the first time. Forward this intent |
| // to SF-side to turn event processing back on |
| mPreviouslyConnected = mCurrentlyConnected; |
| mCurrentlyConnected = true; |
| mFrameEventHistory.getAndResetDelta(outDelta); |
| } |
| } |
| |
| void BLASTBufferItemConsumer::updateFrameTimestamps(uint64_t frameNumber, nsecs_t refreshStartTime, |
| const sp<Fence>& glDoneFence, |
| const sp<Fence>& presentFence, |
| const sp<Fence>& prevReleaseFence, |
| CompositorTiming compositorTiming, |
| nsecs_t latchTime, nsecs_t dequeueReadyTime) { |
| Mutex::Autolock lock(mMutex); |
| |
| // if the producer is not connected, don't bother updating, |
| // the next producer that connects won't access this frame event |
| if (!mCurrentlyConnected) return; |
| std::shared_ptr<FenceTime> glDoneFenceTime = std::make_shared<FenceTime>(glDoneFence); |
| std::shared_ptr<FenceTime> presentFenceTime = std::make_shared<FenceTime>(presentFence); |
| std::shared_ptr<FenceTime> releaseFenceTime = std::make_shared<FenceTime>(prevReleaseFence); |
| |
| mFrameEventHistory.addLatch(frameNumber, latchTime); |
| mFrameEventHistory.addRelease(frameNumber, dequeueReadyTime, std::move(releaseFenceTime)); |
| mFrameEventHistory.addPreComposition(frameNumber, refreshStartTime); |
| mFrameEventHistory.addPostComposition(frameNumber, glDoneFenceTime, presentFenceTime, |
| compositorTiming); |
| } |
| |
| void BLASTBufferItemConsumer::getConnectionEvents(uint64_t frameNumber, bool* needsDisconnect) { |
| bool disconnect = false; |
| Mutex::Autolock lock(mMutex); |
| while (!mDisconnectEvents.empty() && mDisconnectEvents.front() <= frameNumber) { |
| disconnect = true; |
| mDisconnectEvents.pop(); |
| } |
| if (needsDisconnect != nullptr) *needsDisconnect = disconnect; |
| } |
| |
| void BLASTBufferItemConsumer::setBlastBufferQueue(BLASTBufferQueue* blastbufferqueue) { |
| Mutex::Autolock lock(mMutex); |
| mBLASTBufferQueue = blastbufferqueue; |
| } |
| |
| void BLASTBufferItemConsumer::onSidebandStreamChanged() { |
| Mutex::Autolock lock(mMutex); |
| if (mBLASTBufferQueue != nullptr) { |
| sp<NativeHandle> stream = getSidebandStream(); |
| mBLASTBufferQueue->setSidebandStream(stream); |
| } |
| } |
| |
| BLASTBufferQueue::BLASTBufferQueue(const std::string& name, const sp<SurfaceControl>& surface, |
| int width, int height, int32_t format) |
| : mSurfaceControl(surface), |
| mSize(width, height), |
| mRequestedSize(mSize), |
| mFormat(format), |
| mNextTransaction(nullptr) { |
| createBufferQueue(&mProducer, &mConsumer); |
| // since the adapter is in the client process, set dequeue timeout |
| // explicitly so that dequeueBuffer will block |
| mProducer->setDequeueTimeout(std::numeric_limits<int64_t>::max()); |
| |
| // safe default, most producers are expected to override this |
| mProducer->setMaxDequeuedBufferCount(2); |
| mBufferItemConsumer = new BLASTBufferItemConsumer(mConsumer, |
| GraphicBuffer::USAGE_HW_COMPOSER | |
| GraphicBuffer::USAGE_HW_TEXTURE, |
| 1, false); |
| static int32_t id = 0; |
| mName = name + "#" + std::to_string(id); |
| auto consumerName = mName + "(BLAST Consumer)" + std::to_string(id); |
| mQueuedBufferTrace = "QueuedBuffer - " + mName + "BLAST#" + std::to_string(id); |
| id++; |
| mBufferItemConsumer->setName(String8(consumerName.c_str())); |
| mBufferItemConsumer->setFrameAvailableListener(this); |
| mBufferItemConsumer->setBufferFreedListener(this); |
| mBufferItemConsumer->setDefaultBufferSize(mSize.width, mSize.height); |
| mBufferItemConsumer->setDefaultBufferFormat(convertBufferFormat(format)); |
| mBufferItemConsumer->setBlastBufferQueue(this); |
| |
| ComposerService::getComposerService()->getMaxAcquiredBufferCount(&mMaxAcquiredBuffers); |
| mBufferItemConsumer->setMaxAcquiredBufferCount(mMaxAcquiredBuffers); |
| |
| mTransformHint = mSurfaceControl->getTransformHint(); |
| mBufferItemConsumer->setTransformHint(mTransformHint); |
| SurfaceComposerClient::Transaction() |
| .setFlags(surface, layer_state_t::eEnableBackpressure, |
| layer_state_t::eEnableBackpressure) |
| .setApplyToken(mApplyToken) |
| .apply(); |
| mNumAcquired = 0; |
| mNumFrameAvailable = 0; |
| BQA_LOGV("BLASTBufferQueue created width=%d height=%d format=%d mTransformHint=%d", width, |
| height, format, mTransformHint); |
| } |
| |
| BLASTBufferQueue::~BLASTBufferQueue() { |
| mBufferItemConsumer->setBlastBufferQueue(nullptr); |
| if (mPendingTransactions.empty()) { |
| return; |
| } |
| BQA_LOGE("Applying pending transactions on dtor %d", |
| static_cast<uint32_t>(mPendingTransactions.size())); |
| SurfaceComposerClient::Transaction t; |
| for (auto& [targetFrameNumber, transaction] : mPendingTransactions) { |
| t.merge(std::move(transaction)); |
| } |
| t.apply(); |
| } |
| |
| void BLASTBufferQueue::update(const sp<SurfaceControl>& surface, uint32_t width, uint32_t height, |
| int32_t format, SurfaceComposerClient::Transaction* outTransaction) { |
| std::unique_lock _lock{mMutex}; |
| if (mFormat != format) { |
| mFormat = format; |
| mBufferItemConsumer->setDefaultBufferFormat(convertBufferFormat(format)); |
| } |
| |
| SurfaceComposerClient::Transaction t; |
| const bool setBackpressureFlag = !SurfaceControl::isSameSurface(mSurfaceControl, surface); |
| bool applyTransaction = false; |
| |
| // Always update the native object even though they might have the same layer handle, so we can |
| // get the updated transform hint from WM. |
| mSurfaceControl = surface; |
| if (mSurfaceControl != nullptr) { |
| if (setBackpressureFlag) { |
| t.setFlags(mSurfaceControl, layer_state_t::eEnableBackpressure, |
| layer_state_t::eEnableBackpressure); |
| applyTransaction = true; |
| } |
| mTransformHint = mSurfaceControl->getTransformHint(); |
| mBufferItemConsumer->setTransformHint(mTransformHint); |
| } |
| BQA_LOGV("update width=%d height=%d format=%d mTransformHint=%d", width, height, format, |
| mTransformHint); |
| |
| ui::Size newSize(width, height); |
| if (mRequestedSize != newSize) { |
| mRequestedSize.set(newSize); |
| mBufferItemConsumer->setDefaultBufferSize(mRequestedSize.width, mRequestedSize.height); |
| if (mLastBufferInfo.scalingMode != NATIVE_WINDOW_SCALING_MODE_FREEZE) { |
| // If the buffer supports scaling, update the frame immediately since the client may |
| // want to scale the existing buffer to the new size. |
| mSize = mRequestedSize; |
| // We only need to update the scale if we've received at least one buffer. The reason |
| // for this is the scale is calculated based on the requested size and buffer size. |
| // If there's no buffer, the scale will always be 1. |
| SurfaceComposerClient::Transaction* destFrameTransaction = |
| (outTransaction) ? outTransaction : &t; |
| if (mSurfaceControl != nullptr && mLastBufferInfo.hasBuffer) { |
| destFrameTransaction->setDestinationFrame(mSurfaceControl, |
| Rect(0, 0, newSize.getWidth(), |
| newSize.getHeight())); |
| } |
| applyTransaction = true; |
| } |
| } |
| if (applyTransaction) { |
| t.setApplyToken(mApplyToken).apply(); |
| } |
| } |
| |
| static void transactionCallbackThunk(void* context, nsecs_t latchTime, |
| const sp<Fence>& presentFence, |
| const std::vector<SurfaceControlStats>& stats) { |
| if (context == nullptr) { |
| return; |
| } |
| sp<BLASTBufferQueue> bq = static_cast<BLASTBufferQueue*>(context); |
| bq->transactionCallback(latchTime, presentFence, stats); |
| } |
| |
| void BLASTBufferQueue::transactionCallback(nsecs_t /*latchTime*/, const sp<Fence>& /*presentFence*/, |
| const std::vector<SurfaceControlStats>& stats) { |
| std::function<void(int64_t)> transactionCompleteCallback = nullptr; |
| uint64_t currFrameNumber = 0; |
| |
| { |
| std::unique_lock _lock{mMutex}; |
| ATRACE_CALL(); |
| BQA_LOGV("transactionCallback"); |
| |
| if (!mSurfaceControlsWithPendingCallback.empty()) { |
| sp<SurfaceControl> pendingSC = mSurfaceControlsWithPendingCallback.front(); |
| mSurfaceControlsWithPendingCallback.pop(); |
| bool found = false; |
| for (auto stat : stats) { |
| if (!SurfaceControl::isSameSurface(pendingSC, stat.surfaceControl)) { |
| continue; |
| } |
| |
| mTransformHint = stat.transformHint; |
| mBufferItemConsumer->setTransformHint(mTransformHint); |
| BQA_LOGV("updated mTransformHint=%d", mTransformHint); |
| // Update frametime stamps if the frame was latched and presented, indicated by a |
| // valid latch time. |
| if (stat.latchTime > 0) { |
| mBufferItemConsumer |
| ->updateFrameTimestamps(stat.frameEventStats.frameNumber, |
| stat.frameEventStats.refreshStartTime, |
| stat.frameEventStats.gpuCompositionDoneFence, |
| stat.presentFence, stat.previousReleaseFence, |
| stat.frameEventStats.compositorTiming, |
| stat.latchTime, |
| stat.frameEventStats.dequeueReadyTime); |
| } |
| currFrameNumber = stat.frameEventStats.frameNumber; |
| |
| if (mTransactionCompleteCallback && |
| currFrameNumber >= mTransactionCompleteFrameNumber) { |
| if (currFrameNumber > mTransactionCompleteFrameNumber) { |
| BQA_LOGE("transactionCallback received for a newer framenumber=%" PRIu64 |
| " than expected=%" PRIu64, |
| currFrameNumber, mTransactionCompleteFrameNumber); |
| } |
| transactionCompleteCallback = std::move(mTransactionCompleteCallback); |
| mTransactionCompleteFrameNumber = 0; |
| } |
| |
| found = true; |
| break; |
| } |
| |
| if (!found) { |
| BQA_LOGE("Failed to find matching SurfaceControl in transaction callback"); |
| } |
| } else { |
| BQA_LOGE("No matching SurfaceControls found: mSurfaceControlsWithPendingCallback was " |
| "empty."); |
| } |
| |
| decStrong((void*)transactionCallbackThunk); |
| } |
| |
| if (transactionCompleteCallback) { |
| transactionCompleteCallback(currFrameNumber); |
| } |
| } |
| |
| // Unlike transactionCallbackThunk the release buffer callback does not extend the life of the |
| // BBQ. This is because if the BBQ is destroyed, then the buffers will be released by the client. |
| // So we pass in a weak pointer to the BBQ and if it still alive, then we release the buffer. |
| // Otherwise, this is a no-op. |
| static void releaseBufferCallbackThunk(wp<BLASTBufferQueue> context, const ReleaseCallbackId& id, |
| const sp<Fence>& releaseFence, uint32_t transformHint, |
| uint32_t currentMaxAcquiredBufferCount) { |
| sp<BLASTBufferQueue> blastBufferQueue = context.promote(); |
| if (blastBufferQueue) { |
| blastBufferQueue->releaseBufferCallback(id, releaseFence, transformHint, |
| currentMaxAcquiredBufferCount); |
| } else { |
| ALOGV("releaseBufferCallbackThunk %s blastBufferQueue is dead", id.to_string().c_str()); |
| } |
| } |
| |
| void BLASTBufferQueue::releaseBufferCallback(const ReleaseCallbackId& id, |
| const sp<Fence>& releaseFence, uint32_t transformHint, |
| uint32_t currentMaxAcquiredBufferCount) { |
| ATRACE_CALL(); |
| std::unique_lock _lock{mMutex}; |
| BQA_LOGV("releaseBufferCallback %s", id.to_string().c_str()); |
| |
| if (mSurfaceControl != nullptr) { |
| mTransformHint = transformHint; |
| mSurfaceControl->setTransformHint(transformHint); |
| mBufferItemConsumer->setTransformHint(mTransformHint); |
| BQA_LOGV("updated mTransformHint=%d", mTransformHint); |
| } |
| |
| // Calculate how many buffers we need to hold before we release them back |
| // to the buffer queue. This will prevent higher latency when we are running |
| // on a lower refresh rate than the max supported. We only do that for EGL |
| // clients as others don't care about latency |
| const bool isEGL = [&] { |
| const auto it = mSubmitted.find(id); |
| return it != mSubmitted.end() && it->second.mApi == NATIVE_WINDOW_API_EGL; |
| }(); |
| |
| const auto numPendingBuffersToHold = |
| isEGL ? std::max(0u, mMaxAcquiredBuffers - currentMaxAcquiredBufferCount) : 0; |
| mPendingRelease.emplace_back(ReleasedBuffer{id, releaseFence}); |
| |
| // Release all buffers that are beyond the ones that we need to hold |
| while (mPendingRelease.size() > numPendingBuffersToHold) { |
| const auto releaseBuffer = mPendingRelease.front(); |
| mPendingRelease.pop_front(); |
| auto it = mSubmitted.find(releaseBuffer.callbackId); |
| if (it == mSubmitted.end()) { |
| BQA_LOGE("ERROR: releaseBufferCallback without corresponding submitted buffer %s", |
| releaseBuffer.callbackId.to_string().c_str()); |
| return; |
| } |
| mNumAcquired--; |
| BQA_LOGV("released %s", id.to_string().c_str()); |
| mBufferItemConsumer->releaseBuffer(it->second, releaseBuffer.releaseFence); |
| mSubmitted.erase(it); |
| processNextBufferLocked(false /* useNextTransaction */); |
| } |
| |
| ATRACE_INT("PendingRelease", mPendingRelease.size()); |
| ATRACE_INT(mQueuedBufferTrace.c_str(), |
| mNumFrameAvailable + mNumAcquired - mPendingRelease.size()); |
| mCallbackCV.notify_all(); |
| } |
| |
| void BLASTBufferQueue::processNextBufferLocked(bool useNextTransaction) { |
| ATRACE_CALL(); |
| // If the next transaction is set, we want to guarantee the our acquire will not fail, so don't |
| // include the extra buffer when checking if we can acquire the next buffer. |
| const bool includeExtraAcquire = !useNextTransaction; |
| if (mNumFrameAvailable == 0 || maxBuffersAcquired(includeExtraAcquire)) { |
| mCallbackCV.notify_all(); |
| return; |
| } |
| |
| if (mSurfaceControl == nullptr) { |
| BQA_LOGE("ERROR : surface control is null"); |
| return; |
| } |
| |
| SurfaceComposerClient::Transaction localTransaction; |
| bool applyTransaction = true; |
| SurfaceComposerClient::Transaction* t = &localTransaction; |
| if (mNextTransaction != nullptr && useNextTransaction) { |
| t = mNextTransaction; |
| mNextTransaction = nullptr; |
| applyTransaction = false; |
| } |
| |
| BufferItem bufferItem; |
| |
| status_t status = |
| mBufferItemConsumer->acquireBuffer(&bufferItem, 0 /* expectedPresent */, false); |
| if (status == BufferQueue::NO_BUFFER_AVAILABLE) { |
| BQA_LOGV("Failed to acquire a buffer, err=NO_BUFFER_AVAILABLE"); |
| return; |
| } else if (status != OK) { |
| BQA_LOGE("Failed to acquire a buffer, err=%s", statusToString(status).c_str()); |
| return; |
| } |
| auto buffer = bufferItem.mGraphicBuffer; |
| mNumFrameAvailable--; |
| |
| if (buffer == nullptr) { |
| mBufferItemConsumer->releaseBuffer(bufferItem, Fence::NO_FENCE); |
| BQA_LOGE("Buffer was empty"); |
| return; |
| } |
| |
| if (rejectBuffer(bufferItem)) { |
| BQA_LOGE("rejecting buffer:active_size=%dx%d, requested_size=%dx%d " |
| "buffer{size=%dx%d transform=%d}", |
| mSize.width, mSize.height, mRequestedSize.width, mRequestedSize.height, |
| buffer->getWidth(), buffer->getHeight(), bufferItem.mTransform); |
| mBufferItemConsumer->releaseBuffer(bufferItem, Fence::NO_FENCE); |
| processNextBufferLocked(useNextTransaction); |
| return; |
| } |
| |
| mNumAcquired++; |
| mLastAcquiredFrameNumber = bufferItem.mFrameNumber; |
| ReleaseCallbackId releaseCallbackId(buffer->getId(), mLastAcquiredFrameNumber); |
| mSubmitted[releaseCallbackId] = bufferItem; |
| |
| bool needsDisconnect = false; |
| mBufferItemConsumer->getConnectionEvents(bufferItem.mFrameNumber, &needsDisconnect); |
| |
| // if producer disconnected before, notify SurfaceFlinger |
| if (needsDisconnect) { |
| t->notifyProducerDisconnect(mSurfaceControl); |
| } |
| |
| // Ensure BLASTBufferQueue stays alive until we receive the transaction complete callback. |
| incStrong((void*)transactionCallbackThunk); |
| |
| Rect crop = computeCrop(bufferItem); |
| const bool updateDestinationFrame = |
| bufferItem.mScalingMode == NATIVE_WINDOW_SCALING_MODE_FREEZE || |
| !mLastBufferInfo.hasBuffer; |
| mLastBufferInfo.update(true /* hasBuffer */, bufferItem.mGraphicBuffer->getWidth(), |
| bufferItem.mGraphicBuffer->getHeight(), bufferItem.mTransform, |
| bufferItem.mScalingMode, crop); |
| |
| auto releaseBufferCallback = |
| std::bind(releaseBufferCallbackThunk, wp<BLASTBufferQueue>(this) /* callbackContext */, |
| std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, |
| std::placeholders::_4); |
| t->setBuffer(mSurfaceControl, buffer, releaseCallbackId, releaseBufferCallback); |
| t->setDataspace(mSurfaceControl, static_cast<ui::Dataspace>(bufferItem.mDataSpace)); |
| t->setHdrMetadata(mSurfaceControl, bufferItem.mHdrMetadata); |
| t->setSurfaceDamageRegion(mSurfaceControl, bufferItem.mSurfaceDamage); |
| t->setAcquireFence(mSurfaceControl, |
| bufferItem.mFence ? new Fence(bufferItem.mFence->dup()) : Fence::NO_FENCE); |
| t->addTransactionCompletedCallback(transactionCallbackThunk, static_cast<void*>(this)); |
| mSurfaceControlsWithPendingCallback.push(mSurfaceControl); |
| |
| if (updateDestinationFrame) { |
| t->setDestinationFrame(mSurfaceControl, Rect(0, 0, mSize.getWidth(), mSize.getHeight())); |
| } |
| t->setBufferCrop(mSurfaceControl, crop); |
| t->setTransform(mSurfaceControl, bufferItem.mTransform); |
| t->setTransformToDisplayInverse(mSurfaceControl, bufferItem.mTransformToDisplayInverse); |
| if (!bufferItem.mIsAutoTimestamp) { |
| t->setDesiredPresentTime(bufferItem.mTimestamp); |
| } |
| t->setFrameNumber(mSurfaceControl, bufferItem.mFrameNumber); |
| |
| if (!mNextFrameTimelineInfoQueue.empty()) { |
| t->setFrameTimelineInfo(mNextFrameTimelineInfoQueue.front()); |
| mNextFrameTimelineInfoQueue.pop(); |
| } |
| |
| if (mAutoRefresh != bufferItem.mAutoRefresh) { |
| t->setAutoRefresh(mSurfaceControl, bufferItem.mAutoRefresh); |
| mAutoRefresh = bufferItem.mAutoRefresh; |
| } |
| { |
| std::unique_lock _lock{mTimestampMutex}; |
| auto dequeueTime = mDequeueTimestamps.find(buffer->getId()); |
| if (dequeueTime != mDequeueTimestamps.end()) { |
| Parcel p; |
| p.writeInt64(dequeueTime->second); |
| t->setMetadata(mSurfaceControl, METADATA_DEQUEUE_TIME, p); |
| mDequeueTimestamps.erase(dequeueTime); |
| } |
| } |
| |
| auto mergeTransaction = |
| [&t, currentFrameNumber = bufferItem.mFrameNumber]( |
| std::tuple<uint64_t, SurfaceComposerClient::Transaction> pendingTransaction) { |
| auto& [targetFrameNumber, transaction] = pendingTransaction; |
| if (currentFrameNumber < targetFrameNumber) { |
| return false; |
| } |
| t->merge(std::move(transaction)); |
| return true; |
| }; |
| |
| mPendingTransactions.erase(std::remove_if(mPendingTransactions.begin(), |
| mPendingTransactions.end(), mergeTransaction), |
| mPendingTransactions.end()); |
| |
| if (applyTransaction) { |
| t->setApplyToken(mApplyToken).apply(); |
| } |
| |
| BQA_LOGV("processNextBufferLocked size=%dx%d mFrameNumber=%" PRIu64 |
| " applyTransaction=%s mTimestamp=%" PRId64 "%s mPendingTransactions.size=%d" |
| " graphicBufferId=%" PRIu64 "%s transform=%d", |
| mSize.width, mSize.height, bufferItem.mFrameNumber, toString(applyTransaction), |
| bufferItem.mTimestamp, bufferItem.mIsAutoTimestamp ? "(auto)" : "", |
| static_cast<uint32_t>(mPendingTransactions.size()), bufferItem.mGraphicBuffer->getId(), |
| bufferItem.mAutoRefresh ? " mAutoRefresh" : "", bufferItem.mTransform); |
| } |
| |
| Rect BLASTBufferQueue::computeCrop(const BufferItem& item) { |
| if (item.mScalingMode == NATIVE_WINDOW_SCALING_MODE_SCALE_CROP) { |
| return GLConsumer::scaleDownCrop(item.mCrop, mSize.width, mSize.height); |
| } |
| return item.mCrop; |
| } |
| |
| void BLASTBufferQueue::onFrameAvailable(const BufferItem& item) { |
| ATRACE_CALL(); |
| std::unique_lock _lock{mMutex}; |
| |
| const bool nextTransactionSet = mNextTransaction != nullptr; |
| if (nextTransactionSet) { |
| while (mNumFrameAvailable > 0 || maxBuffersAcquired(false /* includeExtraAcquire */)) { |
| BQA_LOGV("waiting in onFrameAvailable..."); |
| mCallbackCV.wait(_lock); |
| } |
| } |
| // add to shadow queue |
| mNumFrameAvailable++; |
| ATRACE_INT(mQueuedBufferTrace.c_str(), |
| mNumFrameAvailable + mNumAcquired - mPendingRelease.size()); |
| |
| BQA_LOGV("onFrameAvailable framenumber=%" PRIu64 " nextTransactionSet=%s", item.mFrameNumber, |
| toString(nextTransactionSet)); |
| processNextBufferLocked(nextTransactionSet /* useNextTransaction */); |
| } |
| |
| void BLASTBufferQueue::onFrameReplaced(const BufferItem& item) { |
| BQA_LOGV("onFrameReplaced framenumber=%" PRIu64, item.mFrameNumber); |
| // Do nothing since we are not storing unacquired buffer items locally. |
| } |
| |
| void BLASTBufferQueue::onFrameDequeued(const uint64_t bufferId) { |
| std::unique_lock _lock{mTimestampMutex}; |
| mDequeueTimestamps[bufferId] = systemTime(); |
| }; |
| |
| void BLASTBufferQueue::onFrameCancelled(const uint64_t bufferId) { |
| std::unique_lock _lock{mTimestampMutex}; |
| mDequeueTimestamps.erase(bufferId); |
| }; |
| |
| void BLASTBufferQueue::setNextTransaction(SurfaceComposerClient::Transaction* t) { |
| std::lock_guard _lock{mMutex}; |
| mNextTransaction = t; |
| } |
| |
| bool BLASTBufferQueue::rejectBuffer(const BufferItem& item) { |
| if (item.mScalingMode != NATIVE_WINDOW_SCALING_MODE_FREEZE) { |
| mSize = mRequestedSize; |
| // Only reject buffers if scaling mode is freeze. |
| return false; |
| } |
| |
| uint32_t bufWidth = item.mGraphicBuffer->getWidth(); |
| uint32_t bufHeight = item.mGraphicBuffer->getHeight(); |
| |
| // Take the buffer's orientation into account |
| if (item.mTransform & ui::Transform::ROT_90) { |
| std::swap(bufWidth, bufHeight); |
| } |
| ui::Size bufferSize(bufWidth, bufHeight); |
| if (mRequestedSize != mSize && mRequestedSize == bufferSize) { |
| mSize = mRequestedSize; |
| return false; |
| } |
| |
| // reject buffers if the buffer size doesn't match. |
| return mSize != bufferSize; |
| } |
| |
| void BLASTBufferQueue::setTransactionCompleteCallback( |
| uint64_t frameNumber, std::function<void(int64_t)>&& transactionCompleteCallback) { |
| std::lock_guard _lock{mMutex}; |
| if (transactionCompleteCallback == nullptr) { |
| mTransactionCompleteCallback = nullptr; |
| } else { |
| mTransactionCompleteCallback = std::move(transactionCompleteCallback); |
| mTransactionCompleteFrameNumber = frameNumber; |
| } |
| } |
| |
| // Check if we have acquired the maximum number of buffers. |
| // Consumer can acquire an additional buffer if that buffer is not droppable. Set |
| // includeExtraAcquire is true to include this buffer to the count. Since this depends on the state |
| // of the buffer, the next acquire may return with NO_BUFFER_AVAILABLE. |
| bool BLASTBufferQueue::maxBuffersAcquired(bool includeExtraAcquire) const { |
| int maxAcquiredBuffers = mMaxAcquiredBuffers + (includeExtraAcquire ? 2 : 1); |
| return mNumAcquired == maxAcquiredBuffers; |
| } |
| |
| class BBQSurface : public Surface { |
| private: |
| std::mutex mMutex; |
| sp<BLASTBufferQueue> mBbq; |
| bool mDestroyed = false; |
| |
| public: |
| BBQSurface(const sp<IGraphicBufferProducer>& igbp, bool controlledByApp, |
| const sp<IBinder>& scHandle, const sp<BLASTBufferQueue>& bbq) |
| : Surface(igbp, controlledByApp, scHandle), mBbq(bbq) {} |
| |
| void allocateBuffers() override { |
| uint32_t reqWidth = mReqWidth ? mReqWidth : mUserWidth; |
| uint32_t reqHeight = mReqHeight ? mReqHeight : mUserHeight; |
| auto gbp = getIGraphicBufferProducer(); |
| std::thread ([reqWidth, reqHeight, gbp=getIGraphicBufferProducer(), |
| reqFormat=mReqFormat, reqUsage=mReqUsage] () { |
| gbp->allocateBuffers(reqWidth, reqHeight, |
| reqFormat, reqUsage); |
| |
| }).detach(); |
| } |
| |
| status_t setFrameRate(float frameRate, int8_t compatibility, |
| int8_t changeFrameRateStrategy) override { |
| std::unique_lock _lock{mMutex}; |
| if (mDestroyed) { |
| return DEAD_OBJECT; |
| } |
| if (!ValidateFrameRate(frameRate, compatibility, changeFrameRateStrategy, |
| "BBQSurface::setFrameRate")) { |
| return BAD_VALUE; |
| } |
| return mBbq->setFrameRate(frameRate, compatibility, changeFrameRateStrategy); |
| } |
| |
| status_t setFrameTimelineInfo(const FrameTimelineInfo& frameTimelineInfo) override { |
| std::unique_lock _lock{mMutex}; |
| if (mDestroyed) { |
| return DEAD_OBJECT; |
| } |
| return mBbq->setFrameTimelineInfo(frameTimelineInfo); |
| } |
| |
| void destroy() override { |
| Surface::destroy(); |
| |
| std::unique_lock _lock{mMutex}; |
| mDestroyed = true; |
| mBbq = nullptr; |
| } |
| }; |
| |
| // TODO: Can we coalesce this with frame updates? Need to confirm |
| // no timing issues. |
| status_t BLASTBufferQueue::setFrameRate(float frameRate, int8_t compatibility, |
| bool shouldBeSeamless) { |
| std::unique_lock _lock{mMutex}; |
| SurfaceComposerClient::Transaction t; |
| |
| return t.setFrameRate(mSurfaceControl, frameRate, compatibility, shouldBeSeamless).apply(); |
| } |
| |
| status_t BLASTBufferQueue::setFrameTimelineInfo(const FrameTimelineInfo& frameTimelineInfo) { |
| std::unique_lock _lock{mMutex}; |
| mNextFrameTimelineInfoQueue.push(frameTimelineInfo); |
| return OK; |
| } |
| |
| void BLASTBufferQueue::setSidebandStream(const sp<NativeHandle>& stream) { |
| std::unique_lock _lock{mMutex}; |
| SurfaceComposerClient::Transaction t; |
| |
| t.setSidebandStream(mSurfaceControl, stream).apply(); |
| } |
| |
| sp<Surface> BLASTBufferQueue::getSurface(bool includeSurfaceControlHandle) { |
| std::unique_lock _lock{mMutex}; |
| sp<IBinder> scHandle = nullptr; |
| if (includeSurfaceControlHandle && mSurfaceControl) { |
| scHandle = mSurfaceControl->getHandle(); |
| } |
| return new BBQSurface(mProducer, true, scHandle, this); |
| } |
| |
| void BLASTBufferQueue::mergeWithNextTransaction(SurfaceComposerClient::Transaction* t, |
| uint64_t frameNumber) { |
| std::lock_guard _lock{mMutex}; |
| if (mLastAcquiredFrameNumber >= frameNumber) { |
| // Apply the transaction since we have already acquired the desired frame. |
| t->apply(); |
| } else { |
| mPendingTransactions.emplace_back(frameNumber, *t); |
| // Clear the transaction so it can't be applied elsewhere. |
| t->clear(); |
| } |
| } |
| |
| // Maintains a single worker thread per process that services a list of runnables. |
| class AsyncWorker : public Singleton<AsyncWorker> { |
| private: |
| std::thread mThread; |
| bool mDone = false; |
| std::deque<std::function<void()>> mRunnables; |
| std::mutex mMutex; |
| std::condition_variable mCv; |
| void run() { |
| std::unique_lock<std::mutex> lock(mMutex); |
| while (!mDone) { |
| while (!mRunnables.empty()) { |
| std::function<void()> runnable = mRunnables.front(); |
| mRunnables.pop_front(); |
| runnable(); |
| } |
| mCv.wait(lock); |
| } |
| } |
| |
| public: |
| AsyncWorker() : Singleton<AsyncWorker>() { mThread = std::thread(&AsyncWorker::run, this); } |
| |
| ~AsyncWorker() { |
| mDone = true; |
| mCv.notify_all(); |
| if (mThread.joinable()) { |
| mThread.join(); |
| } |
| } |
| |
| void post(std::function<void()> runnable) { |
| std::unique_lock<std::mutex> lock(mMutex); |
| mRunnables.emplace_back(std::move(runnable)); |
| mCv.notify_one(); |
| } |
| }; |
| ANDROID_SINGLETON_STATIC_INSTANCE(AsyncWorker); |
| |
| // Asynchronously calls ProducerListener functions so we can emulate one way binder calls. |
| class AsyncProducerListener : public BnProducerListener { |
| private: |
| const sp<IProducerListener> mListener; |
| |
| public: |
| AsyncProducerListener(const sp<IProducerListener>& listener) : mListener(listener) {} |
| |
| void onBufferReleased() override { |
| AsyncWorker::getInstance().post([listener = mListener]() { listener->onBufferReleased(); }); |
| } |
| |
| void onBuffersDiscarded(const std::vector<int32_t>& slots) override { |
| AsyncWorker::getInstance().post( |
| [listener = mListener, slots = slots]() { listener->onBuffersDiscarded(slots); }); |
| } |
| }; |
| |
| // Extends the BufferQueueProducer to create a wrapper around the listener so the listener calls |
| // can be non-blocking when the producer is in the client process. |
| class BBQBufferQueueProducer : public BufferQueueProducer { |
| public: |
| BBQBufferQueueProducer(const sp<BufferQueueCore>& core) |
| : BufferQueueProducer(core, false /* consumerIsSurfaceFlinger*/) {} |
| |
| status_t connect(const sp<IProducerListener>& listener, int api, bool producerControlledByApp, |
| QueueBufferOutput* output) override { |
| if (!listener) { |
| return BufferQueueProducer::connect(listener, api, producerControlledByApp, output); |
| } |
| |
| return BufferQueueProducer::connect(new AsyncProducerListener(listener), api, |
| producerControlledByApp, output); |
| } |
| |
| int query(int what, int* value) override { |
| if (what == NATIVE_WINDOW_QUEUES_TO_WINDOW_COMPOSER) { |
| *value = 1; |
| return NO_ERROR; |
| } |
| return BufferQueueProducer::query(what, value); |
| } |
| }; |
| |
| // Similar to BufferQueue::createBufferQueue but creates an adapter specific bufferqueue producer. |
| // This BQP allows invoking client specified ProducerListeners and invoke them asynchronously, |
| // emulating one way binder call behavior. Without this, if the listener calls back into the queue, |
| // we can deadlock. |
| void BLASTBufferQueue::createBufferQueue(sp<IGraphicBufferProducer>* outProducer, |
| sp<IGraphicBufferConsumer>* outConsumer) { |
| LOG_ALWAYS_FATAL_IF(outProducer == nullptr, "BLASTBufferQueue: outProducer must not be NULL"); |
| LOG_ALWAYS_FATAL_IF(outConsumer == nullptr, "BLASTBufferQueue: outConsumer must not be NULL"); |
| |
| sp<BufferQueueCore> core(new BufferQueueCore()); |
| LOG_ALWAYS_FATAL_IF(core == nullptr, "BLASTBufferQueue: failed to create BufferQueueCore"); |
| |
| sp<IGraphicBufferProducer> producer(new BBQBufferQueueProducer(core)); |
| LOG_ALWAYS_FATAL_IF(producer == nullptr, |
| "BLASTBufferQueue: failed to create BBQBufferQueueProducer"); |
| |
| sp<BufferQueueConsumer> consumer(new BufferQueueConsumer(core)); |
| consumer->setAllowExtraAcquire(true); |
| LOG_ALWAYS_FATAL_IF(consumer == nullptr, |
| "BLASTBufferQueue: failed to create BufferQueueConsumer"); |
| |
| *outProducer = producer; |
| *outConsumer = consumer; |
| } |
| |
| PixelFormat BLASTBufferQueue::convertBufferFormat(PixelFormat& format) { |
| PixelFormat convertedFormat = format; |
| switch (format) { |
| case PIXEL_FORMAT_TRANSPARENT: |
| case PIXEL_FORMAT_TRANSLUCENT: |
| convertedFormat = PIXEL_FORMAT_RGBA_8888; |
| break; |
| case PIXEL_FORMAT_OPAQUE: |
| convertedFormat = PIXEL_FORMAT_RGBX_8888; |
| break; |
| } |
| return convertedFormat; |
| } |
| |
| uint32_t BLASTBufferQueue::getLastTransformHint() const { |
| if (mSurfaceControl != nullptr) { |
| return mSurfaceControl->getTransformHint(); |
| } else { |
| return 0; |
| } |
| } |
| |
| } // namespace android |
