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-rw-r--r--libs/gui/BLASTBufferQueue.cpp107
-rw-r--r--libs/gui/ITransactionCompletedListener.cpp13
-rw-r--r--libs/gui/LayerState.cpp17
-rw-r--r--libs/gui/SurfaceComposerClient.cpp84
-rw-r--r--libs/gui/include/gui/BLASTBufferQueue.h18
-rw-r--r--libs/gui/include/gui/ITransactionCompletedListener.h8
-rw-r--r--libs/gui/include/gui/LayerState.h7
-rw-r--r--libs/gui/include/gui/SurfaceComposerClient.h19
-rw-r--r--libs/gui/tests/BLASTBufferQueue_test.cpp53
9 files changed, 246 insertions, 80 deletions
diff --git a/libs/gui/BLASTBufferQueue.cpp b/libs/gui/BLASTBufferQueue.cpp
index 82c9268feb..f778232803 100644
--- a/libs/gui/BLASTBufferQueue.cpp
+++ b/libs/gui/BLASTBufferQueue.cpp
@@ -169,8 +169,6 @@ BLASTBufferQueue::BLASTBufferQueue(const std::string& name, const sp<SurfaceCont
mNumAcquired = 0;
mNumFrameAvailable = 0;
- mPendingReleaseItem.item = BufferItem();
- mPendingReleaseItem.releaseFence = nullptr;
}
BLASTBufferQueue::~BLASTBufferQueue() {
@@ -242,7 +240,6 @@ void BLASTBufferQueue::transactionCallback(nsecs_t /*latchTime*/, const sp<Fence
std::unique_lock _lock{mMutex};
ATRACE_CALL();
BQA_LOGV("transactionCallback");
- mInitialCallbackReceived = true;
if (!stats.empty()) {
mTransformHint = stats[0].transformHint;
@@ -255,38 +252,20 @@ void BLASTBufferQueue::transactionCallback(nsecs_t /*latchTime*/, const sp<Fence
stats[0].frameEventStats.compositorTiming,
stats[0].latchTime,
stats[0].frameEventStats.dequeueReadyTime);
- }
- if (mPendingReleaseItem.item.mGraphicBuffer != nullptr) {
- if (!stats.empty()) {
- mPendingReleaseItem.releaseFence = stats[0].previousReleaseFence;
- } else {
- BQA_LOGE("Warning: no SurfaceControlStats returned in BLASTBufferQueue callback");
- mPendingReleaseItem.releaseFence = nullptr;
+ currFrameNumber = stats[0].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;
}
- mBufferItemConsumer->releaseBuffer(mPendingReleaseItem.item,
- mPendingReleaseItem.releaseFence
- ? mPendingReleaseItem.releaseFence
- : Fence::NO_FENCE);
- mNumAcquired--;
- mPendingReleaseItem.item = BufferItem();
- mPendingReleaseItem.releaseFence = nullptr;
- }
-
- if (mSubmitted.empty()) {
- BQA_LOGE("ERROR: callback with no corresponding submitted buffer item");
}
- mPendingReleaseItem.item = std::move(mSubmitted.front());
- mSubmitted.pop();
-
- processNextBufferLocked(false /* useNextTransaction */);
- currFrameNumber = mPendingReleaseItem.item.mFrameNumber;
- if (mTransactionCompleteCallback && mTransactionCompleteFrameNumber == currFrameNumber) {
- transactionCompleteCallback = std::move(mTransactionCompleteCallback);
- mTransactionCompleteFrameNumber = 0;
- }
-
- mCallbackCV.notify_all();
decStrong((void*)transactionCallbackThunk);
}
@@ -295,15 +274,46 @@ void BLASTBufferQueue::transactionCallback(nsecs_t /*latchTime*/, const sp<Fence
}
}
-void BLASTBufferQueue::processNextBufferLocked(bool useNextTransaction) {
+// 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, uint64_t graphicBufferId,
+ const sp<Fence>& releaseFence) {
+ sp<BLASTBufferQueue> blastBufferQueue = context.promote();
+ ALOGV("releaseBufferCallbackThunk graphicBufferId=%" PRIu64 " blastBufferQueue=%s",
+ graphicBufferId, blastBufferQueue ? "alive" : "dead");
+ if (blastBufferQueue) {
+ blastBufferQueue->releaseBufferCallback(graphicBufferId, releaseFence);
+ }
+}
+
+void BLASTBufferQueue::releaseBufferCallback(uint64_t graphicBufferId,
+ const sp<Fence>& releaseFence) {
ATRACE_CALL();
- BQA_LOGV("processNextBufferLocked useNextTransaction=%s", toString(useNextTransaction));
+ std::unique_lock _lock{mMutex};
+ BQA_LOGV("releaseBufferCallback graphicBufferId=%" PRIu64, graphicBufferId);
+
+ auto it = mSubmitted.find(graphicBufferId);
+ if (it == mSubmitted.end()) {
+ BQA_LOGE("ERROR: releaseBufferCallback without corresponding submitted buffer %" PRIu64,
+ graphicBufferId);
+ return;
+ }
+ mBufferItemConsumer->releaseBuffer(it->second, releaseFence);
+ mSubmitted.erase(it);
+ mNumAcquired--;
+ processNextBufferLocked(false /* useNextTransaction */);
+ 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)) {
- BQA_LOGV("processNextBufferLocked waiting for frame available or callback");
mCallbackCV.notify_all();
return;
}
@@ -353,7 +363,7 @@ void BLASTBufferQueue::processNextBufferLocked(bool useNextTransaction) {
}
mNumAcquired++;
- mSubmitted.push(bufferItem);
+ mSubmitted[buffer->getId()] = bufferItem;
bool needsDisconnect = false;
mBufferItemConsumer->getConnectionEvents(bufferItem.mFrameNumber, &needsDisconnect);
@@ -369,7 +379,10 @@ void BLASTBufferQueue::processNextBufferLocked(bool useNextTransaction) {
mLastBufferScalingMode = bufferItem.mScalingMode;
mLastAcquiredFrameNumber = bufferItem.mFrameNumber;
- t->setBuffer(mSurfaceControl, buffer);
+ auto releaseBufferCallback =
+ std::bind(releaseBufferCallbackThunk, wp<BLASTBufferQueue>(this) /* callbackContext */,
+ std::placeholders::_1, std::placeholders::_2);
+ t->setBuffer(mSurfaceControl, buffer, releaseBufferCallback);
t->setDataspace(mSurfaceControl, static_cast<ui::Dataspace>(bufferItem.mDataSpace));
t->setHdrMetadata(mSurfaceControl, bufferItem.mHdrMetadata);
t->setSurfaceDamageRegion(mSurfaceControl, bufferItem.mSurfaceDamage);
@@ -427,9 +440,12 @@ void BLASTBufferQueue::processNextBufferLocked(bool useNextTransaction) {
}
BQA_LOGV("processNextBufferLocked size=%dx%d mFrameNumber=%" PRIu64
- " applyTransaction=%s mTimestamp=%" PRId64 " mPendingTransactions.size=%d",
+ " applyTransaction=%s mTimestamp=%" PRId64 "%s mPendingTransactions.size=%d"
+ " graphicBufferId=%" PRIu64,
mSize.width, mSize.height, bufferItem.mFrameNumber, toString(applyTransaction),
- bufferItem.mTimestamp, static_cast<uint32_t>(mPendingTransactions.size()));
+ bufferItem.mTimestamp, bufferItem.mIsAutoTimestamp ? "(auto)" : "",
+ static_cast<uint32_t>(mPendingTransactions.size()),
+ bufferItem.mGraphicBuffer->getId());
}
Rect BLASTBufferQueue::computeCrop(const BufferItem& item) {
@@ -444,18 +460,17 @@ void BLASTBufferQueue::onFrameAvailable(const BufferItem& item) {
std::unique_lock _lock{mMutex};
const bool nextTransactionSet = mNextTransaction != nullptr;
- BQA_LOGV("onFrameAvailable framenumber=%" PRIu64 " nextTransactionSet=%s mFlushShadowQueue=%s",
- item.mFrameNumber, toString(nextTransactionSet), toString(mFlushShadowQueue));
-
- if (nextTransactionSet || mFlushShadowQueue) {
+ if (nextTransactionSet) {
while (mNumFrameAvailable > 0 || maxBuffersAcquired(false /* includeExtraAcquire */)) {
BQA_LOGV("waiting in onFrameAvailable...");
mCallbackCV.wait(_lock);
}
}
- mFlushShadowQueue = false;
// add to shadow queue
mNumFrameAvailable++;
+
+ BQA_LOGV("onFrameAvailable framenumber=%" PRIu64 " nextTransactionSet=%s", item.mFrameNumber,
+ toString(nextTransactionSet));
processNextBufferLocked(nextTransactionSet /* useNextTransaction */);
}
@@ -514,14 +529,12 @@ void BLASTBufferQueue::setTransactionCompleteCallback(
}
// Check if we have acquired the maximum number of buffers.
-// As a special case, we wait for the first callback before acquiring the second buffer so we
-// can ensure the first buffer is presented if multiple buffers are queued in succession.
// 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 = MAX_ACQUIRED_BUFFERS + (includeExtraAcquire ? 2 : 1);
- return mNumAcquired == maxAcquiredBuffers || (!mInitialCallbackReceived && mNumAcquired == 1);
+ return mNumAcquired == maxAcquiredBuffers;
}
class BBQSurface : public Surface {
diff --git a/libs/gui/ITransactionCompletedListener.cpp b/libs/gui/ITransactionCompletedListener.cpp
index 0ded9361bf..9b5be1f15a 100644
--- a/libs/gui/ITransactionCompletedListener.cpp
+++ b/libs/gui/ITransactionCompletedListener.cpp
@@ -27,7 +27,8 @@ namespace { // Anonymous
enum class Tag : uint32_t {
ON_TRANSACTION_COMPLETED = IBinder::FIRST_CALL_TRANSACTION,
- LAST = ON_TRANSACTION_COMPLETED,
+ ON_RELEASE_BUFFER,
+ LAST = ON_RELEASE_BUFFER,
};
} // Anonymous namespace
@@ -122,6 +123,7 @@ status_t SurfaceStats::writeToParcel(Parcel* output) const {
for (const auto& data : jankData) {
SAFE_PARCEL(output->writeParcelable, data);
}
+ SAFE_PARCEL(output->writeUint64, previousBufferId);
return NO_ERROR;
}
@@ -144,6 +146,7 @@ status_t SurfaceStats::readFromParcel(const Parcel* input) {
SAFE_PARCEL(input->readParcelable, &data);
jankData.push_back(data);
}
+ SAFE_PARCEL(input->readUint64, &previousBufferId);
return NO_ERROR;
}
@@ -245,6 +248,12 @@ public:
onTransactionCompleted)>(Tag::ON_TRANSACTION_COMPLETED,
stats);
}
+
+ void onReleaseBuffer(uint64_t graphicBufferId, sp<Fence> releaseFence) override {
+ callRemoteAsync<decltype(
+ &ITransactionCompletedListener::onReleaseBuffer)>(Tag::ON_RELEASE_BUFFER,
+ graphicBufferId, releaseFence);
+ }
};
// Out-of-line virtual method definitions to trigger vtable emission in this translation unit (see
@@ -263,6 +272,8 @@ status_t BnTransactionCompletedListener::onTransact(uint32_t code, const Parcel&
case Tag::ON_TRANSACTION_COMPLETED:
return callLocalAsync(data, reply,
&ITransactionCompletedListener::onTransactionCompleted);
+ case Tag::ON_RELEASE_BUFFER:
+ return callLocalAsync(data, reply, &ITransactionCompletedListener::onReleaseBuffer);
}
}
diff --git a/libs/gui/LayerState.cpp b/libs/gui/LayerState.cpp
index 6bb8bf2d5b..7a18ca61fe 100644
--- a/libs/gui/LayerState.cpp
+++ b/libs/gui/LayerState.cpp
@@ -63,7 +63,8 @@ layer_state_t::layer_state_t()
fixedTransformHint(ui::Transform::ROT_INVALID),
frameNumber(0),
frameTimelineInfo(),
- autoRefresh(false) {
+ autoRefresh(false),
+ releaseBufferListener(nullptr) {
matrix.dsdx = matrix.dtdy = 1.0f;
matrix.dsdy = matrix.dtdx = 0.0f;
hdrMetadata.validTypes = 0;
@@ -152,6 +153,7 @@ status_t layer_state_t::write(Parcel& output) const
SAFE_PARCEL(output.writeUint64, frameNumber);
SAFE_PARCEL(frameTimelineInfo.write, output);
SAFE_PARCEL(output.writeBool, autoRefresh);
+ SAFE_PARCEL(output.writeStrongBinder, IInterface::asBinder(releaseBufferListener));
SAFE_PARCEL(output.writeUint32, blurRegions.size());
for (auto region : blurRegions) {
@@ -275,6 +277,12 @@ status_t layer_state_t::read(const Parcel& input)
SAFE_PARCEL(frameTimelineInfo.read, input);
SAFE_PARCEL(input.readBool, &autoRefresh);
+ tmpBinder = nullptr;
+ SAFE_PARCEL(input.readNullableStrongBinder, &tmpBinder);
+ if (tmpBinder) {
+ releaseBufferListener = checked_interface_cast<ITransactionCompletedListener>(tmpBinder);
+ }
+
uint32_t numRegions = 0;
SAFE_PARCEL(input.readUint32, &numRegions);
blurRegions.clear();
@@ -543,6 +551,13 @@ void layer_state_t::merge(const layer_state_t& other) {
what |= eAutoRefreshChanged;
autoRefresh = other.autoRefresh;
}
+ if (other.what & eReleaseBufferListenerChanged) {
+ if (releaseBufferListener) {
+ ALOGW("Overriding releaseBufferListener");
+ }
+ what |= eReleaseBufferListenerChanged;
+ releaseBufferListener = other.releaseBufferListener;
+ }
if (other.what & eStretchChanged) {
what |= eStretchChanged;
stretchEffect = other.stretchEffect;
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index c16a98f42f..11fe49039d 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -195,6 +195,17 @@ void TransactionCompletedListener::removeJankListener(const sp<JankDataListener>
}
}
+void TransactionCompletedListener::setReleaseBufferCallback(uint64_t graphicBufferId,
+ ReleaseBufferCallback listener) {
+ std::scoped_lock<std::mutex> lock(mMutex);
+ mReleaseBufferCallbacks[graphicBufferId] = listener;
+}
+
+void TransactionCompletedListener::removeReleaseBufferCallback(uint64_t graphicBufferId) {
+ std::scoped_lock<std::mutex> lock(mMutex);
+ mReleaseBufferCallbacks.erase(graphicBufferId);
+}
+
void TransactionCompletedListener::addSurfaceStatsListener(void* context, void* cookie,
sp<SurfaceControl> surfaceControl, SurfaceStatsCallback listener) {
std::lock_guard<std::mutex> lock(mMutex);
@@ -275,6 +286,20 @@ void TransactionCompletedListener::onTransactionCompleted(ListenerStats listener
.surfaceControls[surfaceStats.surfaceControl]
->setTransformHint(surfaceStats.transformHint);
}
+ // If there is buffer id set, we look up any pending client release buffer callbacks
+ // and call them. This is a performance optimization when we have a transaction
+ // callback and a release buffer callback happening at the same time to avoid an
+ // additional ipc call from the server.
+ if (surfaceStats.previousBufferId) {
+ ReleaseBufferCallback callback =
+ popReleaseBufferCallbackLocked(surfaceStats.previousBufferId);
+ if (callback) {
+ callback(surfaceStats.previousBufferId,
+ surfaceStats.previousReleaseFence
+ ? surfaceStats.previousReleaseFence
+ : Fence::NO_FENCE);
+ }
+ }
}
callbackFunction(transactionStats.latchTime, transactionStats.presentFence,
@@ -297,6 +322,32 @@ void TransactionCompletedListener::onTransactionCompleted(ListenerStats listener
}
}
+void TransactionCompletedListener::onReleaseBuffer(uint64_t graphicBufferId,
+ sp<Fence> releaseFence) {
+ ReleaseBufferCallback callback;
+ {
+ std::scoped_lock<std::mutex> lock(mMutex);
+ callback = popReleaseBufferCallbackLocked(graphicBufferId);
+ }
+ if (!callback) {
+ ALOGE("Could not call release buffer callback, buffer not found %" PRIu64, graphicBufferId);
+ return;
+ }
+ callback(graphicBufferId, releaseFence);
+}
+
+ReleaseBufferCallback TransactionCompletedListener::popReleaseBufferCallbackLocked(
+ uint64_t graphicBufferId) {
+ ReleaseBufferCallback callback;
+ auto itr = mReleaseBufferCallbacks.find(graphicBufferId);
+ if (itr == mReleaseBufferCallbacks.end()) {
+ return nullptr;
+ }
+ callback = itr->second;
+ mReleaseBufferCallbacks.erase(itr);
+ return callback;
+}
+
// ---------------------------------------------------------------------------
void removeDeadBufferCallback(void* /*context*/, uint64_t graphicBufferId);
@@ -1219,17 +1270,20 @@ SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setFrame
}
SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setBuffer(
- const sp<SurfaceControl>& sc, const sp<GraphicBuffer>& buffer) {
+ const sp<SurfaceControl>& sc, const sp<GraphicBuffer>& buffer,
+ ReleaseBufferCallback callback) {
layer_state_t* s = getLayerState(sc);
if (!s) {
mStatus = BAD_INDEX;
return *this;
}
+ removeReleaseBufferCallback(s);
s->what |= layer_state_t::eBufferChanged;
s->buffer = buffer;
if (mIsAutoTimestamp) {
mDesiredPresentTime = systemTime();
}
+ setReleaseBufferCallback(s, callback);
registerSurfaceControlForCallback(sc);
@@ -1237,6 +1291,34 @@ SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setBuffe
return *this;
}
+void SurfaceComposerClient::Transaction::removeReleaseBufferCallback(layer_state_t* s) {
+ if (!s->releaseBufferListener) {
+ return;
+ }
+
+ s->what &= ~static_cast<uint64_t>(layer_state_t::eReleaseBufferListenerChanged);
+ s->releaseBufferListener = nullptr;
+ TransactionCompletedListener::getInstance()->removeReleaseBufferCallback(s->buffer->getId());
+}
+
+void SurfaceComposerClient::Transaction::setReleaseBufferCallback(layer_state_t* s,
+ ReleaseBufferCallback callback) {
+ if (!callback) {
+ return;
+ }
+
+ if (!s->buffer) {
+ ALOGW("Transaction::setReleaseBufferCallback"
+ "ignored trying to set a callback on a null buffer.");
+ return;
+ }
+
+ s->what |= layer_state_t::eReleaseBufferListenerChanged;
+ s->releaseBufferListener = TransactionCompletedListener::getIInstance();
+ auto listener = TransactionCompletedListener::getInstance();
+ listener->setReleaseBufferCallback(s->buffer->getId(), callback);
+}
+
SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setAcquireFence(
const sp<SurfaceControl>& sc, const sp<Fence>& fence) {
layer_state_t* s = getLayerState(sc);
diff --git a/libs/gui/include/gui/BLASTBufferQueue.h b/libs/gui/include/gui/BLASTBufferQueue.h
index dd8e714e23..0173ffd68e 100644
--- a/libs/gui/include/gui/BLASTBufferQueue.h
+++ b/libs/gui/include/gui/BLASTBufferQueue.h
@@ -89,13 +89,14 @@ public:
void transactionCallback(nsecs_t latchTime, const sp<Fence>& presentFence,
const std::vector<SurfaceControlStats>& stats);
+ void releaseBufferCallback(uint64_t graphicBufferId, const sp<Fence>& releaseFence);
void setNextTransaction(SurfaceComposerClient::Transaction *t);
void mergeWithNextTransaction(SurfaceComposerClient::Transaction* t, uint64_t frameNumber);
void setTransactionCompleteCallback(uint64_t frameNumber,
std::function<void(int64_t)>&& transactionCompleteCallback);
void update(const sp<SurfaceControl>& surface, uint32_t width, uint32_t height, int32_t format);
- void flushShadowQueue() { mFlushShadowQueue = true; }
+ void flushShadowQueue() {}
status_t setFrameRate(float frameRate, int8_t compatibility, bool shouldBeSeamless);
status_t setFrameTimelineInfo(const FrameTimelineInfo& info);
@@ -132,16 +133,10 @@ private:
int32_t mNumFrameAvailable GUARDED_BY(mMutex);
int32_t mNumAcquired GUARDED_BY(mMutex);
- bool mInitialCallbackReceived GUARDED_BY(mMutex) = false;
- struct PendingReleaseItem {
- BufferItem item;
- sp<Fence> releaseFence;
- };
- std::queue<const BufferItem> mSubmitted GUARDED_BY(mMutex);
- // Keep a reference to the currently presented buffer so we can release it when the next buffer
- // is ready to be presented.
- PendingReleaseItem mPendingReleaseItem GUARDED_BY(mMutex);
+ // Keep a reference to the submitted buffers so we can release when surfaceflinger drops the
+ // buffer or the buffer has been presented and a new buffer is ready to be presented.
+ std::unordered_map<uint64_t /* bufferId */, BufferItem> mSubmitted GUARDED_BY(mMutex);
ui::Size mSize GUARDED_BY(mMutex);
ui::Size mRequestedSize GUARDED_BY(mMutex);
@@ -157,9 +152,6 @@ private:
std::vector<std::tuple<uint64_t /* framenumber */, SurfaceComposerClient::Transaction>>
mPendingTransactions GUARDED_BY(mMutex);
- // If set to true, the next queue buffer will wait until the shadow queue has been processed by
- // the adapter.
- bool mFlushShadowQueue = false;
// Last requested auto refresh state set by the producer. The state indicates that the consumer
// should acquire the next frame as soon as it can and not wait for a frame to become available.
// This is only relevant for shared buffer mode.
diff --git a/libs/gui/include/gui/ITransactionCompletedListener.h b/libs/gui/include/gui/ITransactionCompletedListener.h
index cb17ceecd3..098760e89d 100644
--- a/libs/gui/include/gui/ITransactionCompletedListener.h
+++ b/libs/gui/include/gui/ITransactionCompletedListener.h
@@ -87,13 +87,14 @@ public:
SurfaceStats() = default;
SurfaceStats(const sp<IBinder>& sc, nsecs_t time, const sp<Fence>& prevReleaseFence,
uint32_t hint, FrameEventHistoryStats frameEventStats,
- std::vector<JankData> jankData)
+ std::vector<JankData> jankData, uint64_t previousBufferId)
: surfaceControl(sc),
acquireTime(time),
previousReleaseFence(prevReleaseFence),
transformHint(hint),
eventStats(frameEventStats),
- jankData(std::move(jankData)) {}
+ jankData(std::move(jankData)),
+ previousBufferId(previousBufferId) {}
sp<IBinder> surfaceControl;
nsecs_t acquireTime = -1;
@@ -101,6 +102,7 @@ public:
uint32_t transformHint = 0;
FrameEventHistoryStats eventStats;
std::vector<JankData> jankData;
+ uint64_t previousBufferId;
};
class TransactionStats : public Parcelable {
@@ -139,6 +141,8 @@ public:
DECLARE_META_INTERFACE(TransactionCompletedListener)
virtual void onTransactionCompleted(ListenerStats stats) = 0;
+
+ virtual void onReleaseBuffer(uint64_t graphicBufferId, sp<Fence> releaseFence) = 0;
};
class BnTransactionCompletedListener : public SafeBnInterface<ITransactionCompletedListener> {
diff --git a/libs/gui/include/gui/LayerState.h b/libs/gui/include/gui/LayerState.h
index 183ec40fba..d68a9cfa4a 100644
--- a/libs/gui/include/gui/LayerState.h
+++ b/libs/gui/include/gui/LayerState.h
@@ -100,7 +100,7 @@ struct layer_state_t {
eLayerStackChanged = 0x00000080,
/* was eCropChanged_legacy, now available 0x00000100, */
eDeferTransaction_legacy = 0x00000200,
- /* was ScalingModeChanged, now available 0x00000400, */
+ eReleaseBufferListenerChanged = 0x00000400,
eShadowRadiusChanged = 0x00000800,
eReparentChildren = 0x00001000,
/* was eDetachChildren, now available 0x00002000, */
@@ -248,6 +248,11 @@ struct layer_state_t {
// Stretch effect to be applied to this layer
StretchEffect stretchEffect;
+
+ // Listens to when the buffer is safe to be released. This is used for blast
+ // layers only. The callback includes a release fence as well as the graphic
+ // buffer id to identify the buffer.
+ sp<ITransactionCompletedListener> releaseBufferListener;
};
struct ComposerState {
diff --git a/libs/gui/include/gui/SurfaceComposerClient.h b/libs/gui/include/gui/SurfaceComposerClient.h
index 88484c0bbf..f29983cef7 100644
--- a/libs/gui/include/gui/SurfaceComposerClient.h
+++ b/libs/gui/include/gui/SurfaceComposerClient.h
@@ -80,6 +80,9 @@ using TransactionCompletedCallbackTakesContext =
using TransactionCompletedCallback =
std::function<void(nsecs_t /*latchTime*/, const sp<Fence>& /*presentFence*/,
const std::vector<SurfaceControlStats>& /*stats*/)>;
+using ReleaseBufferCallback =
+ std::function<void(uint64_t /* graphicsBufferId */, const sp<Fence>& /*releaseFence*/)>;
+
using SurfaceStatsCallback =
std::function<void(void* /*context*/, nsecs_t /*latchTime*/,
const sp<Fence>& /*presentFence*/,
@@ -388,6 +391,8 @@ public:
void cacheBuffers();
void registerSurfaceControlForCallback(const sp<SurfaceControl>& sc);
+ void setReleaseBufferCallback(layer_state_t* state, ReleaseBufferCallback callback);
+ void removeReleaseBufferCallback(layer_state_t* state);
public:
Transaction();
@@ -471,7 +476,8 @@ public:
Transaction& setTransformToDisplayInverse(const sp<SurfaceControl>& sc,
bool transformToDisplayInverse);
Transaction& setFrame(const sp<SurfaceControl>& sc, const Rect& frame);
- Transaction& setBuffer(const sp<SurfaceControl>& sc, const sp<GraphicBuffer>& buffer);
+ Transaction& setBuffer(const sp<SurfaceControl>& sc, const sp<GraphicBuffer>& buffer,
+ ReleaseBufferCallback callback = nullptr);
Transaction& setCachedBuffer(const sp<SurfaceControl>& sc, int32_t bufferId);
Transaction& setAcquireFence(const sp<SurfaceControl>& sc, const sp<Fence>& fence);
Transaction& setDataspace(const sp<SurfaceControl>& sc, ui::Dataspace dataspace);
@@ -650,6 +656,8 @@ class TransactionCompletedListener : public BnTransactionCompletedListener {
std::unordered_map<CallbackId, CallbackTranslation> mCallbacks GUARDED_BY(mMutex);
std::multimap<sp<IBinder>, sp<JankDataListener>> mJankListeners GUARDED_BY(mMutex);
+ std::unordered_map<uint64_t /* graphicsBufferId */, ReleaseBufferCallback>
+ mReleaseBufferCallbacks GUARDED_BY(mMutex);
std::multimap<sp<IBinder>, SurfaceStatsCallbackEntry>
mSurfaceStatsListeners GUARDED_BY(mMutex);
@@ -683,8 +691,15 @@ public:
SurfaceStatsCallback listener);
void removeSurfaceStatsListener(void* context, void* cookie);
- // Overrides BnTransactionCompletedListener's onTransactionCompleted
+ void setReleaseBufferCallback(uint64_t /* graphicsBufferId */, ReleaseBufferCallback);
+ void removeReleaseBufferCallback(uint64_t /* graphicsBufferId */);
+
+ // BnTransactionCompletedListener overrides
void onTransactionCompleted(ListenerStats stats) override;
+ void onReleaseBuffer(uint64_t /* graphicsBufferId */, sp<Fence> releaseFence) override;
+
+private:
+ ReleaseBufferCallback popReleaseBufferCallbackLocked(uint64_t /* graphicsBufferId */);
};
} // namespace android
diff --git a/libs/gui/tests/BLASTBufferQueue_test.cpp b/libs/gui/tests/BLASTBufferQueue_test.cpp
index 7895e99cc3..fe48d88376 100644
--- a/libs/gui/tests/BLASTBufferQueue_test.cpp
+++ b/libs/gui/tests/BLASTBufferQueue_test.cpp
@@ -73,13 +73,34 @@ public:
void waitForCallbacks() {
std::unique_lock lock{mBlastBufferQueueAdapter->mMutex};
- while (mBlastBufferQueueAdapter->mSubmitted.size() > 0) {
+ // Wait until all but one of the submitted buffers have been released.
+ while (mBlastBufferQueueAdapter->mSubmitted.size() > 1) {
mBlastBufferQueueAdapter->mCallbackCV.wait(lock);
}
}
+ void setTransactionCompleteCallback(int64_t frameNumber) {
+ mBlastBufferQueueAdapter->setTransactionCompleteCallback(frameNumber, [&](int64_t frame) {
+ std::unique_lock lock{mMutex};
+ mLastTransactionCompleteFrameNumber = frame;
+ mCallbackCV.notify_all();
+ });
+ }
+
+ void waitForCallback(int64_t frameNumber) {
+ std::unique_lock lock{mMutex};
+ // Wait until all but one of the submitted buffers have been released.
+ while (mLastTransactionCompleteFrameNumber < frameNumber) {
+ mCallbackCV.wait(lock);
+ }
+ }
+
private:
sp<BLASTBufferQueue> mBlastBufferQueueAdapter;
+
+ std::mutex mMutex;
+ std::condition_variable mCallbackCV;
+ int64_t mLastTransactionCompleteFrameNumber = -1;
};
class BLASTBufferQueueTest : public ::testing::Test {
@@ -128,7 +149,7 @@ protected:
mCaptureArgs.dataspace = ui::Dataspace::V0_SRGB;
}
- void setUpProducer(BLASTBufferQueueHelper adapter, sp<IGraphicBufferProducer>& producer) {
+ void setUpProducer(BLASTBufferQueueHelper& adapter, sp<IGraphicBufferProducer>& producer) {
producer = adapter.getIGraphicBufferProducer();
setUpProducer(producer);
}
@@ -205,10 +226,10 @@ protected:
EXPECT_GE(epsilon, abs(g - *(pixel + 1)));
EXPECT_GE(epsilon, abs(b - *(pixel + 2)));
}
+ ASSERT_EQ(false, ::testing::Test::HasFailure());
}
}
captureBuf->unlock();
- ASSERT_EQ(false, ::testing::Test::HasFailure());
}
static status_t captureDisplay(DisplayCaptureArgs& captureArgs,
@@ -315,7 +336,8 @@ TEST_F(BLASTBufferQueueTest, DISABLED_onFrameAvailable_ApplyDesiredPresentTime)
nsecs_t desiredPresentTime = systemTime() + nsecs_t(5 * 1e8);
IGraphicBufferProducer::QueueBufferOutput qbOutput;
- IGraphicBufferProducer::QueueBufferInput input(desiredPresentTime, false, HAL_DATASPACE_UNKNOWN,
+ IGraphicBufferProducer::QueueBufferInput input(desiredPresentTime, true /* autotimestamp */,
+ HAL_DATASPACE_UNKNOWN,
Rect(mDisplayWidth, mDisplayHeight),
NATIVE_WINDOW_SCALING_MODE_FREEZE, 0,
Fence::NO_FENCE);
@@ -351,7 +373,8 @@ TEST_F(BLASTBufferQueueTest, onFrameAvailable_Apply) {
buf->unlock();
IGraphicBufferProducer::QueueBufferOutput qbOutput;
- IGraphicBufferProducer::QueueBufferInput input(systemTime(), false, HAL_DATASPACE_UNKNOWN,
+ IGraphicBufferProducer::QueueBufferInput input(systemTime(), true /* autotimestamp */,
+ HAL_DATASPACE_UNKNOWN,
Rect(mDisplayWidth, mDisplayHeight),
NATIVE_WINDOW_SCALING_MODE_FREEZE, 0,
Fence::NO_FENCE);
@@ -396,7 +419,8 @@ TEST_F(BLASTBufferQueueTest, TripleBuffering) {
nullptr, nullptr);
ASSERT_EQ(NO_ERROR, ret);
IGraphicBufferProducer::QueueBufferOutput qbOutput;
- IGraphicBufferProducer::QueueBufferInput input(systemTime(), false, HAL_DATASPACE_UNKNOWN,
+ IGraphicBufferProducer::QueueBufferInput input(systemTime(), true /* autotimestamp */,
+ HAL_DATASPACE_UNKNOWN,
Rect(mDisplayWidth, mDisplayHeight),
NATIVE_WINDOW_SCALING_MODE_FREEZE, 0,
Fence::NO_FENCE);
@@ -429,7 +453,8 @@ TEST_F(BLASTBufferQueueTest, SetCrop_Item) {
buf->unlock();
IGraphicBufferProducer::QueueBufferOutput qbOutput;
- IGraphicBufferProducer::QueueBufferInput input(systemTime(), false, HAL_DATASPACE_UNKNOWN,
+ IGraphicBufferProducer::QueueBufferInput input(systemTime(), true /* autotimestamp */,
+ HAL_DATASPACE_UNKNOWN,
Rect(mDisplayWidth, mDisplayHeight / 2),
NATIVE_WINDOW_SCALING_MODE_FREEZE, 0,
Fence::NO_FENCE);
@@ -486,7 +511,8 @@ TEST_F(BLASTBufferQueueTest, SetCrop_ScalingModeScaleCrop) {
buf->unlock();
IGraphicBufferProducer::QueueBufferOutput qbOutput;
- IGraphicBufferProducer::QueueBufferInput input(systemTime(), false, HAL_DATASPACE_UNKNOWN,
+ IGraphicBufferProducer::QueueBufferInput input(systemTime(), true /* autotimestamp */,
+ HAL_DATASPACE_UNKNOWN,
Rect(bufferSideLength, finalCropSideLength),
NATIVE_WINDOW_SCALING_MODE_SCALE_CROP, 0,
Fence::NO_FENCE);
@@ -537,7 +563,8 @@ TEST_F(BLASTBufferQueueTest, CustomProducerListener) {
ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION, ret);
ASSERT_EQ(OK, igbProducer->requestBuffer(slot, &buf));
IGraphicBufferProducer::QueueBufferOutput qbOutput;
- IGraphicBufferProducer::QueueBufferInput input(systemTime(), false, HAL_DATASPACE_UNKNOWN,
+ IGraphicBufferProducer::QueueBufferInput input(systemTime(), true /* autotimestamp */,
+ HAL_DATASPACE_UNKNOWN,
Rect(mDisplayWidth, mDisplayHeight),
NATIVE_WINDOW_SCALING_MODE_FREEZE, 0,
Fence::NO_FENCE);
@@ -577,7 +604,7 @@ TEST_F(BLASTBufferQueueTest, OutOfOrderTransactionTest) {
sp<IGraphicBufferProducer> slowIgbProducer;
setUpProducer(slowAdapter, slowIgbProducer);
nsecs_t presentTimeDelay = std::chrono::nanoseconds(500ms).count();
- queueBuffer(slowIgbProducer, 0 /* r */, 0 /* g */, 0 /* b */, presentTimeDelay);
+ queueBuffer(slowIgbProducer, 0 /* r */, 255 /* g */, 0 /* b */, presentTimeDelay);
BLASTBufferQueueHelper fastAdapter(bgSurface, mDisplayWidth, mDisplayHeight);
sp<IGraphicBufferProducer> fastIgbProducer;
@@ -617,7 +644,8 @@ public:
fillQuadrants(buf);
IGraphicBufferProducer::QueueBufferOutput qbOutput;
- IGraphicBufferProducer::QueueBufferInput input(systemTime(), false, HAL_DATASPACE_UNKNOWN,
+ IGraphicBufferProducer::QueueBufferInput input(systemTime(), true /* autotimestamp */,
+ HAL_DATASPACE_UNKNOWN,
Rect(bufWidth, bufHeight),
NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW,
tr, Fence::NO_FENCE);
@@ -838,6 +866,7 @@ TEST_F(BLASTFrameEventHistoryTest, FrameEventHistory_Basic) {
IGraphicBufferProducer::QueueBufferOutput qbOutput;
nsecs_t requestedPresentTimeA = 0;
nsecs_t postedTimeA = 0;
+ adapter.setTransactionCompleteCallback(1);
setUpAndQueueBuffer(igbProducer, &requestedPresentTimeA, &postedTimeA, &qbOutput, true);
history.applyDelta(qbOutput.frameTimestamps);
@@ -848,7 +877,7 @@ TEST_F(BLASTFrameEventHistoryTest, FrameEventHistory_Basic) {
ASSERT_EQ(requestedPresentTimeA, events->requestedPresentTime);
ASSERT_GE(events->postedTime, postedTimeA);
- adapter.waitForCallbacks();
+ adapter.waitForCallback(1);
// queue another buffer so we query for frame event deltas
nsecs_t requestedPresentTimeB = 0;
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2026-01-08 06:05:01 +0000