[sf] update transaction handler filter to use new front end
Instead of looking at drawing state, get the data from
RequestedLayerState.
Bug: 238781169
Test: presubmit
Change-Id: I760900ca23c8d8717b1a0bc5afa8cfee36013a0b
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 81d4897..85b7c83 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -2054,12 +2054,22 @@
}
}
-bool SurfaceFlinger::updateLayerSnapshotsLegacy(VsyncId vsyncId, frontend::Update& update,
- bool transactionsFlushed,
+bool SurfaceFlinger::updateLayerSnapshotsLegacy(VsyncId vsyncId, nsecs_t frameTimeNs,
+ bool flushTransactions,
bool& outTransactionsAreEmpty) {
ATRACE_CALL();
+ frontend::Update update;
+ if (flushTransactions) {
+ update = flushLifecycleUpdates();
+ if (mTransactionTracing) {
+ mTransactionTracing->addCommittedTransactions(ftl::to_underlying(vsyncId), frameTimeNs,
+ update, mFrontEndDisplayInfos,
+ mFrontEndDisplayInfosChanged);
+ }
+ }
+
bool needsTraversal = false;
- if (transactionsFlushed) {
+ if (flushTransactions) {
needsTraversal |= commitMirrorDisplays(vsyncId);
needsTraversal |= commitCreatedLayers(vsyncId, update.layerCreatedStates);
needsTraversal |= applyTransactions(update.transactions, vsyncId);
@@ -2107,12 +2117,43 @@
}
}
-bool SurfaceFlinger::updateLayerSnapshots(VsyncId vsyncId, frontend::Update& update,
- bool transactionsFlushed, bool& outTransactionsAreEmpty) {
+bool SurfaceFlinger::updateLayerSnapshots(VsyncId vsyncId, nsecs_t frameTimeNs,
+ bool flushTransactions, bool& outTransactionsAreEmpty) {
using Changes = frontend::RequestedLayerState::Changes;
ATRACE_CALL();
- {
+ frontend::Update update;
+ if (flushTransactions) {
+ ATRACE_NAME("TransactionHandler:flushTransactions");
+ // Locking:
+ // 1. to prevent onHandleDestroyed from being called while the state lock is held,
+ // we must keep a copy of the transactions (specifically the composer
+ // states) around outside the scope of the lock.
+ // 2. Transactions and created layers do not share a lock. To prevent applying
+ // transactions with layers still in the createdLayer queue, collect the transactions
+ // before committing the created layers.
+ // 3. Transactions can only be flushed after adding layers, since the layer can be a newly
+ // created one
+ mTransactionHandler.collectTransactions();
+ {
+ // TODO(b/238781169) lockless queue this and keep order.
+ std::scoped_lock<std::mutex> lock(mCreatedLayersLock);
+ update.layerCreatedStates = std::move(mCreatedLayers);
+ mCreatedLayers.clear();
+ update.newLayers = std::move(mNewLayers);
+ mNewLayers.clear();
+ update.layerCreationArgs = std::move(mNewLayerArgs);
+ mNewLayerArgs.clear();
+ update.destroyedHandles = std::move(mDestroyedHandles);
+ mDestroyedHandles.clear();
+ }
+
mLayerLifecycleManager.addLayers(std::move(update.newLayers));
+ update.transactions = mTransactionHandler.flushTransactions();
+ if (mTransactionTracing) {
+ mTransactionTracing->addCommittedTransactions(ftl::to_underlying(vsyncId), frameTimeNs,
+ update, mFrontEndDisplayInfos,
+ mFrontEndDisplayInfosChanged);
+ }
mLayerLifecycleManager.applyTransactions(update.transactions);
mLayerLifecycleManager.onHandlesDestroyed(update.destroyedHandles);
for (auto& legacyLayer : update.layerCreatedStates) {
@@ -2121,11 +2162,11 @@
mLegacyLayers[layer->sequence] = layer;
}
}
- }
- if (mLayerLifecycleManager.getGlobalChanges().test(Changes::Hierarchy)) {
- ATRACE_NAME("LayerHierarchyBuilder:update");
- mLayerHierarchyBuilder.update(mLayerLifecycleManager.getLayers(),
- mLayerLifecycleManager.getDestroyedLayers());
+ if (mLayerLifecycleManager.getGlobalChanges().test(Changes::Hierarchy)) {
+ ATRACE_NAME("LayerHierarchyBuilder:update");
+ mLayerHierarchyBuilder.update(mLayerLifecycleManager.getLayers(),
+ mLayerLifecycleManager.getDestroyedLayers());
+ }
}
bool mustComposite = false;
@@ -2299,25 +2340,16 @@
Fps::fromPeriodNsecs(vsyncPeriod.ns()));
const bool flushTransactions = clearTransactionFlags(eTransactionFlushNeeded);
- frontend::Update updates;
- if (flushTransactions) {
- updates = flushLifecycleUpdates();
- if (mTransactionTracing) {
- mTransactionTracing
- ->addCommittedTransactions(ftl::to_underlying(vsyncId),
- pacesetterFrameTarget.frameBeginTime().ns(),
- updates, mFrontEndDisplayInfos,
- mFrontEndDisplayInfosChanged);
- }
- }
bool transactionsAreEmpty;
if (mConfig->legacyFrontEndEnabled) {
- mustComposite |= updateLayerSnapshotsLegacy(vsyncId, updates, flushTransactions,
- transactionsAreEmpty);
+ mustComposite |=
+ updateLayerSnapshotsLegacy(vsyncId, pacesetterFrameTarget.frameBeginTime().ns(),
+ flushTransactions, transactionsAreEmpty);
}
if (mConfig->layerLifecycleManagerEnabled) {
mustComposite |=
- updateLayerSnapshots(vsyncId, updates, flushTransactions, transactionsAreEmpty);
+ updateLayerSnapshots(vsyncId, pacesetterFrameTarget.frameBeginTime().ns(),
+ flushTransactions, transactionsAreEmpty);
}
if (transactionFlushNeeded()) {
@@ -4123,18 +4155,16 @@
return TransactionReadiness::Ready;
}
-TransactionHandler::TransactionReadiness SurfaceFlinger::transactionReadyBufferCheck(
+TransactionHandler::TransactionReadiness SurfaceFlinger::transactionReadyBufferCheckLegacy(
const TransactionHandler::TransactionFlushState& flushState) {
using TransactionReadiness = TransactionHandler::TransactionReadiness;
auto ready = TransactionReadiness::Ready;
- flushState.transaction->traverseStatesWithBuffersWhileTrue([&](const layer_state_t& s,
- const std::shared_ptr<
- renderengine::
- ExternalTexture>&
- externalTexture)
- -> bool {
- sp<Layer> layer = LayerHandle::getLayer(s.surface);
+ flushState.transaction->traverseStatesWithBuffersWhileTrue([&](const ResolvedComposerState&
+ resolvedState) -> bool {
+ sp<Layer> layer = LayerHandle::getLayer(resolvedState.state.surface);
+
const auto& transaction = *flushState.transaction;
+ const auto& s = resolvedState.state;
// check for barrier frames
if (s.bufferData->hasBarrier) {
// The current producerId is already a newer producer than the buffer that has a
@@ -4142,7 +4172,7 @@
// don't wait on the barrier since we know that's stale information.
if (layer->getDrawingState().barrierProducerId > s.bufferData->producerId) {
layer->callReleaseBufferCallback(s.bufferData->releaseBufferListener,
- externalTexture->getBuffer(),
+ resolvedState.externalTexture->getBuffer(),
s.bufferData->frameNumber,
s.bufferData->acquireFence);
// Delete the entire state at this point and not just release the buffer because
@@ -4188,9 +4218,10 @@
s.bufferData->acquireFence->getStatus() != Fence::Status::Unsignaled;
if (!fenceSignaled) {
// check fence status
- const bool allowLatchUnsignaled =
- shouldLatchUnsignaled(layer, s, transaction.states.size(),
- flushState.firstTransaction);
+ const bool allowLatchUnsignaled = shouldLatchUnsignaled(s, transaction.states.size(),
+ flushState.firstTransaction) &&
+ layer->isSimpleBufferUpdate(s);
+
if (allowLatchUnsignaled) {
ATRACE_FORMAT("fence unsignaled try allowLatchUnsignaled %s",
layer->getDebugName());
@@ -4215,15 +4246,120 @@
return ready;
}
+TransactionHandler::TransactionReadiness SurfaceFlinger::transactionReadyBufferCheck(
+ const TransactionHandler::TransactionFlushState& flushState) {
+ using TransactionReadiness = TransactionHandler::TransactionReadiness;
+ auto ready = TransactionReadiness::Ready;
+ flushState.transaction->traverseStatesWithBuffersWhileTrue([&](const ResolvedComposerState&
+ resolvedState) -> bool {
+ const frontend::RequestedLayerState* layer =
+ mLayerLifecycleManager.getLayerFromId(resolvedState.layerId);
+ const auto& transaction = *flushState.transaction;
+ const auto& s = resolvedState.state;
+ // check for barrier frames
+ if (s.bufferData->hasBarrier) {
+ // The current producerId is already a newer producer than the buffer that has a
+ // barrier. This means the incoming buffer is older and we can release it here. We
+ // don't wait on the barrier since we know that's stale information.
+ if (layer->barrierProducerId > s.bufferData->producerId) {
+ if (s.bufferData->releaseBufferListener) {
+ uint32_t currentMaxAcquiredBufferCount =
+ getMaxAcquiredBufferCountForCurrentRefreshRate(layer->ownerUid.val());
+ ATRACE_FORMAT_INSTANT("callReleaseBufferCallback %s - %" PRIu64,
+ layer->name.c_str(), s.bufferData->frameNumber);
+ s.bufferData->releaseBufferListener
+ ->onReleaseBuffer({resolvedState.externalTexture->getBuffer()->getId(),
+ s.bufferData->frameNumber},
+ s.bufferData->acquireFence
+ ? s.bufferData->acquireFence
+ : Fence::NO_FENCE,
+ currentMaxAcquiredBufferCount);
+ }
+
+ // Delete the entire state at this point and not just release the buffer because
+ // everything associated with the Layer in this Transaction is now out of date.
+ ATRACE_FORMAT("DeleteStaleBuffer %s barrierProducerId:%d > %d", layer->name.c_str(),
+ layer->barrierProducerId, s.bufferData->producerId);
+ return TraverseBuffersReturnValues::DELETE_AND_CONTINUE_TRAVERSAL;
+ }
+
+ if (layer->barrierFrameNumber < s.bufferData->barrierFrameNumber) {
+ const bool willApplyBarrierFrame =
+ flushState.bufferLayersReadyToPresent.contains(s.surface.get()) &&
+ ((flushState.bufferLayersReadyToPresent.get(s.surface.get()) >=
+ s.bufferData->barrierFrameNumber));
+ if (!willApplyBarrierFrame) {
+ ATRACE_FORMAT("NotReadyBarrier %s barrierFrameNumber:%" PRId64 " > %" PRId64,
+ layer->name.c_str(), layer->barrierFrameNumber,
+ s.bufferData->barrierFrameNumber);
+ ready = TransactionReadiness::NotReadyBarrier;
+ return TraverseBuffersReturnValues::STOP_TRAVERSAL;
+ }
+ }
+ }
+
+ // If backpressure is enabled and we already have a buffer to commit, keep
+ // the transaction in the queue.
+ const bool hasPendingBuffer =
+ flushState.bufferLayersReadyToPresent.contains(s.surface.get());
+ if (layer->backpressureEnabled() && hasPendingBuffer && transaction.isAutoTimestamp) {
+ ATRACE_FORMAT("hasPendingBuffer %s", layer->name.c_str());
+ ready = TransactionReadiness::NotReady;
+ return TraverseBuffersReturnValues::STOP_TRAVERSAL;
+ }
+
+ // ignore the acquire fence if LatchUnsignaledConfig::Always is set.
+ const bool checkAcquireFence = enableLatchUnsignaledConfig != LatchUnsignaledConfig::Always;
+ const bool acquireFenceAvailable = s.bufferData &&
+ s.bufferData->flags.test(BufferData::BufferDataChange::fenceChanged) &&
+ s.bufferData->acquireFence;
+ const bool fenceSignaled = !checkAcquireFence || !acquireFenceAvailable ||
+ s.bufferData->acquireFence->getStatus() != Fence::Status::Unsignaled;
+ if (!fenceSignaled) {
+ // check fence status
+ const bool allowLatchUnsignaled = shouldLatchUnsignaled(s, transaction.states.size(),
+ flushState.firstTransaction) &&
+ layer->isSimpleBufferUpdate(s);
+ if (allowLatchUnsignaled) {
+ ATRACE_FORMAT("fence unsignaled try allowLatchUnsignaled %s", layer->name.c_str());
+ ready = TransactionReadiness::NotReadyUnsignaled;
+ } else {
+ ready = TransactionReadiness::NotReady;
+ auto& listener = s.bufferData->releaseBufferListener;
+ if (listener &&
+ (flushState.queueProcessTime - transaction.postTime) >
+ std::chrono::nanoseconds(4s).count()) {
+ mTransactionHandler
+ .onTransactionQueueStalled(transaction.id, listener,
+ "Buffer processing hung up due to stuck "
+ "fence. Indicates GPU hang");
+ }
+ ATRACE_FORMAT("fence unsignaled %s", layer->name.c_str());
+ return TraverseBuffersReturnValues::STOP_TRAVERSAL;
+ }
+ }
+ return TraverseBuffersReturnValues::CONTINUE_TRAVERSAL;
+ });
+ return ready;
+}
+
void SurfaceFlinger::addTransactionReadyFilters() {
mTransactionHandler.addTransactionReadyFilter(
std::bind(&SurfaceFlinger::transactionReadyTimelineCheck, this, std::placeholders::_1));
- mTransactionHandler.addTransactionReadyFilter(
- std::bind(&SurfaceFlinger::transactionReadyBufferCheck, this, std::placeholders::_1));
+ if (mConfig->layerLifecycleManagerEnabled) {
+ mTransactionHandler.addTransactionReadyFilter(
+ std::bind(&SurfaceFlinger::transactionReadyBufferCheck, this,
+ std::placeholders::_1));
+ } else {
+ mTransactionHandler.addTransactionReadyFilter(
+ std::bind(&SurfaceFlinger::transactionReadyBufferCheckLegacy, this,
+ std::placeholders::_1));
+ }
}
// For tests only
bool SurfaceFlinger::flushTransactionQueues(VsyncId vsyncId) {
+ mTransactionHandler.collectTransactions();
std::vector<TransactionState> transactions = mTransactionHandler.flushTransactions();
return applyTransactions(transactions, vsyncId);
}
@@ -4276,8 +4412,8 @@
predictedPresentTime - expectedPresentTime >= earlyLatchVsyncThreshold;
}
-bool SurfaceFlinger::shouldLatchUnsignaled(const sp<Layer>& layer, const layer_state_t& state,
- size_t numStates, bool firstTransaction) const {
+bool SurfaceFlinger::shouldLatchUnsignaled(const layer_state_t& state, size_t numStates,
+ bool firstTransaction) const {
if (enableLatchUnsignaledConfig == LatchUnsignaledConfig::Disabled) {
ATRACE_FORMAT_INSTANT("%s: false (LatchUnsignaledConfig::Disabled)", __func__);
return false;
@@ -4314,7 +4450,7 @@
}
}
- return layer->isSimpleBufferUpdate(state);
+ return true;
}
status_t SurfaceFlinger::setTransactionState(
@@ -8158,6 +8294,7 @@
// 2. Transactions and created layers do not share a lock. To prevent applying
// transactions with layers still in the createdLayer queue, flush the transactions
// before committing the created layers.
+ mTransactionHandler.collectTransactions();
update.transactions = mTransactionHandler.flushTransactions();
{
// TODO(b/238781169) lockless queue this and keep order.