| /* |
| * Copyright (C) 2017 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. |
| */ |
| |
| // TODO(b/129481165): remove the #pragma below and fix conversion issues |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wconversion" |
| #pragma clang diagnostic ignored "-Wextra" |
| |
| //#define LOG_NDEBUG 0 |
| #undef LOG_TAG |
| #define LOG_TAG "BufferStateLayer" |
| #define ATRACE_TAG ATRACE_TAG_GRAPHICS |
| |
| #include "BufferStateLayer.h" |
| |
| #include <limits> |
| |
| #include <FrameTimeline/FrameTimeline.h> |
| #include <compositionengine/LayerFECompositionState.h> |
| #include <gui/BufferQueue.h> |
| #include <private/gui/SyncFeatures.h> |
| #include <renderengine/Image.h> |
| |
| #include "EffectLayer.h" |
| #include "FrameTracer/FrameTracer.h" |
| #include "TimeStats/TimeStats.h" |
| |
| namespace android { |
| |
| using PresentState = frametimeline::SurfaceFrame::PresentState; |
| namespace { |
| void callReleaseBufferCallback(const sp<ITransactionCompletedListener>& listener, |
| const sp<GraphicBuffer>& buffer, const sp<Fence>& releaseFence) { |
| if (!listener) { |
| return; |
| } |
| listener->onReleaseBuffer(buffer->getId(), releaseFence ? releaseFence : Fence::NO_FENCE); |
| } |
| } // namespace |
| |
| // clang-format off |
| const std::array<float, 16> BufferStateLayer::IDENTITY_MATRIX{ |
| 1, 0, 0, 0, |
| 0, 1, 0, 0, |
| 0, 0, 1, 0, |
| 0, 0, 0, 1 |
| }; |
| // clang-format on |
| |
| BufferStateLayer::BufferStateLayer(const LayerCreationArgs& args) |
| : BufferLayer(args), mHwcSlotGenerator(new HwcSlotGenerator()) { |
| mCurrentState.dataspace = ui::Dataspace::V0_SRGB; |
| } |
| |
| BufferStateLayer::~BufferStateLayer() { |
| // The original layer and the clone layer share the same texture and buffer. Therefore, only |
| // one of the layers, in this case the original layer, needs to handle the deletion. The |
| // original layer and the clone should be removed at the same time so there shouldn't be any |
| // issue with the clone layer trying to use the texture. |
| if (mBufferInfo.mBuffer != nullptr && !isClone()) { |
| // Ensure that mBuffer is uncached from RenderEngine here, as |
| // RenderEngine may have been using the buffer as an external texture |
| // after the client uncached the buffer. |
| auto& engine(mFlinger->getRenderEngine()); |
| const uint64_t bufferId = mBufferInfo.mBuffer->getId(); |
| engine.unbindExternalTextureBuffer(bufferId); |
| callReleaseBufferCallback(mDrawingState.releaseBufferListener, mBufferInfo.mBuffer, |
| mBufferInfo.mFence); |
| } |
| } |
| |
| status_t BufferStateLayer::addReleaseFence(const sp<CallbackHandle>& ch, |
| const sp<Fence>& fence) { |
| if (ch == nullptr) { |
| return OK; |
| } |
| ch->previousBufferId = mPreviousBufferId; |
| if (!ch->previousReleaseFence.get()) { |
| ch->previousReleaseFence = fence; |
| return OK; |
| } |
| |
| // Below logic is lifted from ConsumerBase.cpp: |
| // Check status of fences first because merging is expensive. |
| // Merging an invalid fence with any other fence results in an |
| // invalid fence. |
| auto currentStatus = ch->previousReleaseFence->getStatus(); |
| if (currentStatus == Fence::Status::Invalid) { |
| ALOGE("Existing fence has invalid state, layer: %s", mName.c_str()); |
| return BAD_VALUE; |
| } |
| |
| auto incomingStatus = fence->getStatus(); |
| if (incomingStatus == Fence::Status::Invalid) { |
| ALOGE("New fence has invalid state, layer: %s", mName.c_str()); |
| ch->previousReleaseFence = fence; |
| return BAD_VALUE; |
| } |
| |
| // If both fences are signaled or both are unsignaled, we need to merge |
| // them to get an accurate timestamp. |
| if (currentStatus == incomingStatus) { |
| char fenceName[32] = {}; |
| snprintf(fenceName, 32, "%.28s", mName.c_str()); |
| sp<Fence> mergedFence = Fence::merge( |
| fenceName, ch->previousReleaseFence, fence); |
| if (!mergedFence.get()) { |
| ALOGE("failed to merge release fences, layer: %s", mName.c_str()); |
| // synchronization is broken, the best we can do is hope fences |
| // signal in order so the new fence will act like a union |
| ch->previousReleaseFence = fence; |
| return BAD_VALUE; |
| } |
| ch->previousReleaseFence = mergedFence; |
| } else if (incomingStatus == Fence::Status::Unsignaled) { |
| // If one fence has signaled and the other hasn't, the unsignaled |
| // fence will approximately correspond with the correct timestamp. |
| // There's a small race if both fences signal at about the same time |
| // and their statuses are retrieved with unfortunate timing. However, |
| // by this point, they will have both signaled and only the timestamp |
| // will be slightly off; any dependencies after this point will |
| // already have been met. |
| ch->previousReleaseFence = fence; |
| } |
| // else if (currentStatus == Fence::Status::Unsignaled) is a no-op. |
| |
| return OK; |
| } |
| |
| // ----------------------------------------------------------------------- |
| // Interface implementation for Layer |
| // ----------------------------------------------------------------------- |
| void BufferStateLayer::onLayerDisplayed(const sp<Fence>& releaseFence) { |
| if (!releaseFence->isValid()) { |
| return; |
| } |
| // The previous release fence notifies the client that SurfaceFlinger is done with the previous |
| // buffer that was presented on this layer. The first transaction that came in this frame that |
| // replaced the previous buffer on this layer needs this release fence, because the fence will |
| // let the client know when that previous buffer is removed from the screen. |
| // |
| // Every other transaction on this layer does not need a release fence because no other |
| // Transactions that were set on this layer this frame are going to have their preceeding buffer |
| // removed from the display this frame. |
| // |
| // For example, if we have 3 transactions this frame. The first transaction doesn't contain a |
| // buffer so it doesn't need a previous release fence because the layer still needs the previous |
| // buffer. The second transaction contains a buffer so it needs a previous release fence because |
| // the previous buffer will be released this frame. The third transaction also contains a |
| // buffer. It replaces the buffer in the second transaction. The buffer in the second |
| // transaction will now no longer be presented so it is released immediately and the third |
| // transaction doesn't need a previous release fence. |
| sp<CallbackHandle> ch; |
| for (auto& handle : mDrawingState.callbackHandles) { |
| if (handle->releasePreviousBuffer) { |
| ch = handle; |
| break; |
| } |
| } |
| auto status = addReleaseFence(ch, releaseFence); |
| if (status != OK) { |
| ALOGE("Failed to add release fence for layer %s", getName().c_str()); |
| } |
| |
| mPreviousReleaseFence = releaseFence; |
| |
| // Prevent tracing the same release multiple times. |
| if (mPreviousFrameNumber != mPreviousReleasedFrameNumber) { |
| mPreviousReleasedFrameNumber = mPreviousFrameNumber; |
| } |
| } |
| |
| void BufferStateLayer::onSurfaceFrameCreated( |
| const std::shared_ptr<frametimeline::SurfaceFrame>& surfaceFrame) { |
| while (mPendingJankClassifications.size() >= kPendingClassificationMaxSurfaceFrames) { |
| // Too many SurfaceFrames pending classification. The front of the deque is probably not |
| // tracked by FrameTimeline and will never be presented. This will only result in a memory |
| // leak. |
| ALOGW("Removing the front of pending jank deque from layer - %s to prevent memory leak", |
| mName.c_str()); |
| std::string miniDump = mPendingJankClassifications.front()->miniDump(); |
| ALOGD("Head SurfaceFrame mini dump\n%s", miniDump.c_str()); |
| mPendingJankClassifications.pop_front(); |
| } |
| mPendingJankClassifications.emplace_back(surfaceFrame); |
| } |
| |
| void BufferStateLayer::releasePendingBuffer(nsecs_t dequeueReadyTime) { |
| for (const auto& handle : mDrawingState.callbackHandles) { |
| handle->transformHint = mTransformHint; |
| handle->dequeueReadyTime = dequeueReadyTime; |
| } |
| |
| // If there are multiple transactions in this frame, set the previous id on the earliest |
| // transacton. We don't need to pass in the released buffer id to multiple transactions. |
| // The buffer id does not have to correspond to any particular transaction as long as the |
| // listening end point is the same but the client expects the first transaction callback that |
| // replaces the presented buffer to contain the release fence. This follows the same logic. |
| // see BufferStateLayer::onLayerDisplayed. |
| for (auto& handle : mDrawingState.callbackHandles) { |
| if (handle->releasePreviousBuffer) { |
| handle->previousBufferId = mPreviousBufferId; |
| break; |
| } |
| } |
| |
| std::vector<JankData> jankData; |
| jankData.reserve(mPendingJankClassifications.size()); |
| while (!mPendingJankClassifications.empty() |
| && mPendingJankClassifications.front()->getJankType()) { |
| std::shared_ptr<frametimeline::SurfaceFrame> surfaceFrame = |
| mPendingJankClassifications.front(); |
| mPendingJankClassifications.pop_front(); |
| jankData.emplace_back( |
| JankData(surfaceFrame->getToken(), surfaceFrame->getJankType().value())); |
| } |
| |
| mFlinger->getTransactionCallbackInvoker().finalizePendingCallbackHandles( |
| mDrawingState.callbackHandles, jankData); |
| |
| mDrawingState.callbackHandles = {}; |
| |
| const sp<Fence>& releaseFence(mPreviousReleaseFence); |
| std::shared_ptr<FenceTime> releaseFenceTime = std::make_shared<FenceTime>(releaseFence); |
| { |
| Mutex::Autolock lock(mFrameEventHistoryMutex); |
| if (mPreviousFrameNumber != 0) { |
| mFrameEventHistory.addRelease(mPreviousFrameNumber, dequeueReadyTime, |
| std::move(releaseFenceTime)); |
| } |
| } |
| } |
| |
| void BufferStateLayer::finalizeFrameEventHistory(const std::shared_ptr<FenceTime>& glDoneFence, |
| const CompositorTiming& compositorTiming) { |
| for (const auto& handle : mDrawingState.callbackHandles) { |
| handle->gpuCompositionDoneFence = glDoneFence; |
| handle->compositorTiming = compositorTiming; |
| } |
| } |
| |
| bool BufferStateLayer::willPresentCurrentTransaction() const { |
| // Returns true if the most recent Transaction applied to CurrentState will be presented. |
| return (getSidebandStreamChanged() || getAutoRefresh() || |
| (mCurrentState.modified && |
| (mCurrentState.buffer != nullptr || mCurrentState.bgColorLayer != nullptr))); |
| } |
| |
| Rect BufferStateLayer::getCrop(const Layer::State& s) const { |
| return s.crop; |
| } |
| |
| bool BufferStateLayer::setTransform(uint32_t transform) { |
| if (mCurrentState.bufferTransform == transform) return false; |
| mCurrentState.bufferTransform = transform; |
| mCurrentState.modified = true; |
| setTransactionFlags(eTransactionNeeded); |
| return true; |
| } |
| |
| bool BufferStateLayer::setTransformToDisplayInverse(bool transformToDisplayInverse) { |
| if (mCurrentState.transformToDisplayInverse == transformToDisplayInverse) return false; |
| mCurrentState.sequence++; |
| mCurrentState.transformToDisplayInverse = transformToDisplayInverse; |
| mCurrentState.modified = true; |
| setTransactionFlags(eTransactionNeeded); |
| return true; |
| } |
| |
| bool BufferStateLayer::setCrop(const Rect& crop) { |
| if (mCurrentState.crop == crop) return false; |
| mCurrentState.sequence++; |
| mCurrentState.crop = crop; |
| |
| mCurrentState.modified = true; |
| setTransactionFlags(eTransactionNeeded); |
| return true; |
| } |
| |
| bool BufferStateLayer::setMatrix(const layer_state_t::matrix22_t& matrix, |
| bool allowNonRectPreservingTransforms) { |
| if (mCurrentState.transform.dsdx() == matrix.dsdx && |
| mCurrentState.transform.dtdy() == matrix.dtdy && |
| mCurrentState.transform.dtdx() == matrix.dtdx && |
| mCurrentState.transform.dsdy() == matrix.dsdy) { |
| return false; |
| } |
| |
| ui::Transform t; |
| t.set(matrix.dsdx, matrix.dtdy, matrix.dtdx, matrix.dsdy); |
| |
| if (!allowNonRectPreservingTransforms && !t.preserveRects()) { |
| ALOGW("Attempt to set rotation matrix without permission ACCESS_SURFACE_FLINGER nor " |
| "ROTATE_SURFACE_FLINGER ignored"); |
| return false; |
| } |
| |
| mCurrentState.transform.set(matrix.dsdx, matrix.dtdy, matrix.dtdx, matrix.dsdy); |
| |
| mCurrentState.sequence++; |
| mCurrentState.modified = true; |
| setTransactionFlags(eTransactionNeeded); |
| |
| return true; |
| } |
| |
| bool BufferStateLayer::setPosition(float x, float y) { |
| if (mCurrentState.transform.tx() == x && mCurrentState.transform.ty() == y) { |
| return false; |
| } |
| |
| mCurrentState.transform.set(x, y); |
| |
| mCurrentState.sequence++; |
| mCurrentState.modified = true; |
| setTransactionFlags(eTransactionNeeded); |
| |
| return true; |
| } |
| |
| bool BufferStateLayer::addFrameEvent(const sp<Fence>& acquireFence, nsecs_t postedTime, |
| nsecs_t desiredPresentTime) { |
| Mutex::Autolock lock(mFrameEventHistoryMutex); |
| mAcquireTimeline.updateSignalTimes(); |
| std::shared_ptr<FenceTime> acquireFenceTime = |
| std::make_shared<FenceTime>((acquireFence ? acquireFence : Fence::NO_FENCE)); |
| NewFrameEventsEntry newTimestamps = {mCurrentState.frameNumber, postedTime, desiredPresentTime, |
| acquireFenceTime}; |
| mFrameEventHistory.setProducerWantsEvents(); |
| mFrameEventHistory.addQueue(newTimestamps); |
| return true; |
| } |
| |
| bool BufferStateLayer::setBuffer(const sp<GraphicBuffer>& buffer, const sp<Fence>& acquireFence, |
| nsecs_t postTime, nsecs_t desiredPresentTime, bool isAutoTimestamp, |
| const client_cache_t& clientCacheId, uint64_t frameNumber, |
| std::optional<nsecs_t> dequeueTime, const FrameTimelineInfo& info, |
| const sp<ITransactionCompletedListener>& releaseBufferListener) { |
| ATRACE_CALL(); |
| |
| if (mCurrentState.buffer) { |
| mReleasePreviousBuffer = true; |
| if (mCurrentState.buffer != mDrawingState.buffer) { |
| // If mCurrentState has a buffer, and we are about to update again |
| // before swapping to drawing state, then the first buffer will be |
| // dropped and we should decrement the pending buffer count and |
| // call any release buffer callbacks if set. |
| callReleaseBufferCallback(mCurrentState.releaseBufferListener, mCurrentState.buffer, |
| mCurrentState.acquireFence); |
| decrementPendingBufferCount(); |
| if (mCurrentState.bufferSurfaceFrameTX != nullptr) { |
| addSurfaceFrameDroppedForBuffer(mCurrentState.bufferSurfaceFrameTX); |
| mCurrentState.bufferSurfaceFrameTX.reset(); |
| } |
| } |
| } |
| mCurrentState.frameNumber = frameNumber; |
| mCurrentState.releaseBufferListener = releaseBufferListener; |
| mCurrentState.buffer = buffer; |
| mCurrentState.clientCacheId = clientCacheId; |
| mCurrentState.modified = true; |
| setTransactionFlags(eTransactionNeeded); |
| |
| const int32_t layerId = getSequence(); |
| mFlinger->mTimeStats->setPostTime(layerId, mCurrentState.frameNumber, getName().c_str(), |
| mOwnerUid, postTime); |
| mCurrentState.desiredPresentTime = desiredPresentTime; |
| mCurrentState.isAutoTimestamp = isAutoTimestamp; |
| |
| const nsecs_t presentTime = [&] { |
| if (!isAutoTimestamp) return desiredPresentTime; |
| |
| const auto prediction = |
| mFlinger->mFrameTimeline->getTokenManager()->getPredictionsForToken(info.vsyncId); |
| if (prediction.has_value()) return prediction->presentTime; |
| |
| return static_cast<nsecs_t>(0); |
| }(); |
| mFlinger->mScheduler->recordLayerHistory(this, presentTime, |
| LayerHistory::LayerUpdateType::Buffer); |
| |
| addFrameEvent(acquireFence, postTime, isAutoTimestamp ? 0 : desiredPresentTime); |
| |
| setFrameTimelineVsyncForBufferTransaction(info, postTime); |
| |
| if (dequeueTime && *dequeueTime != 0) { |
| const uint64_t bufferId = buffer->getId(); |
| mFlinger->mFrameTracer->traceNewLayer(layerId, getName().c_str()); |
| mFlinger->mFrameTracer->traceTimestamp(layerId, bufferId, frameNumber, *dequeueTime, |
| FrameTracer::FrameEvent::DEQUEUE); |
| mFlinger->mFrameTracer->traceTimestamp(layerId, bufferId, frameNumber, postTime, |
| FrameTracer::FrameEvent::QUEUE); |
| } |
| |
| mCurrentState.width = mCurrentState.buffer->width; |
| mCurrentState.height = mCurrentState.buffer->height; |
| |
| return true; |
| } |
| |
| bool BufferStateLayer::setAcquireFence(const sp<Fence>& fence) { |
| mCurrentState.acquireFence = fence; |
| mCurrentState.acquireFenceTime = std::make_unique<FenceTime>(fence); |
| |
| // The acquire fences of BufferStateLayers have already signaled before they are set |
| mCallbackHandleAcquireTime = mCurrentState.acquireFenceTime->getSignalTime(); |
| |
| mCurrentState.modified = true; |
| setTransactionFlags(eTransactionNeeded); |
| return true; |
| } |
| |
| bool BufferStateLayer::setDataspace(ui::Dataspace dataspace) { |
| if (mCurrentState.dataspace == dataspace) return false; |
| mCurrentState.dataspace = dataspace; |
| mCurrentState.modified = true; |
| setTransactionFlags(eTransactionNeeded); |
| return true; |
| } |
| |
| bool BufferStateLayer::setHdrMetadata(const HdrMetadata& hdrMetadata) { |
| if (mCurrentState.hdrMetadata == hdrMetadata) return false; |
| mCurrentState.hdrMetadata = hdrMetadata; |
| mCurrentState.modified = true; |
| setTransactionFlags(eTransactionNeeded); |
| return true; |
| } |
| |
| bool BufferStateLayer::setSurfaceDamageRegion(const Region& surfaceDamage) { |
| mCurrentState.surfaceDamageRegion = surfaceDamage; |
| mCurrentState.modified = true; |
| setTransactionFlags(eTransactionNeeded); |
| return true; |
| } |
| |
| bool BufferStateLayer::setApi(int32_t api) { |
| if (mCurrentState.api == api) return false; |
| mCurrentState.api = api; |
| mCurrentState.modified = true; |
| setTransactionFlags(eTransactionNeeded); |
| return true; |
| } |
| |
| bool BufferStateLayer::setSidebandStream(const sp<NativeHandle>& sidebandStream) { |
| if (mCurrentState.sidebandStream == sidebandStream) return false; |
| mCurrentState.sidebandStream = sidebandStream; |
| mCurrentState.modified = true; |
| setTransactionFlags(eTransactionNeeded); |
| |
| if (!mSidebandStreamChanged.exchange(true)) { |
| // mSidebandStreamChanged was false |
| mFlinger->signalLayerUpdate(); |
| } |
| return true; |
| } |
| |
| bool BufferStateLayer::setTransactionCompletedListeners( |
| const std::vector<sp<CallbackHandle>>& handles) { |
| // If there is no handle, we will not send a callback so reset mReleasePreviousBuffer and return |
| if (handles.empty()) { |
| mReleasePreviousBuffer = false; |
| return false; |
| } |
| |
| const bool willPresent = willPresentCurrentTransaction(); |
| |
| for (const auto& handle : handles) { |
| // If this transaction set a buffer on this layer, release its previous buffer |
| handle->releasePreviousBuffer = mReleasePreviousBuffer; |
| |
| // If this layer will be presented in this frame |
| if (willPresent) { |
| // If this transaction set an acquire fence on this layer, set its acquire time |
| handle->acquireTime = mCallbackHandleAcquireTime; |
| handle->frameNumber = mCurrentState.frameNumber; |
| |
| // Notify the transaction completed thread that there is a pending latched callback |
| // handle |
| mFlinger->getTransactionCallbackInvoker().registerPendingCallbackHandle(handle); |
| |
| // Store so latched time and release fence can be set |
| mCurrentState.callbackHandles.push_back(handle); |
| |
| } else { // If this layer will NOT need to be relatched and presented this frame |
| // Notify the transaction completed thread this handle is done |
| mFlinger->getTransactionCallbackInvoker().registerUnpresentedCallbackHandle(handle); |
| } |
| } |
| |
| mReleasePreviousBuffer = false; |
| mCallbackHandleAcquireTime = -1; |
| |
| return willPresent; |
| } |
| |
| bool BufferStateLayer::setTransparentRegionHint(const Region& transparent) { |
| mCurrentState.transparentRegionHint = transparent; |
| mCurrentState.modified = true; |
| setTransactionFlags(eTransactionNeeded); |
| return true; |
| } |
| |
| Rect BufferStateLayer::getBufferSize(const State& s) const { |
| // for buffer state layers we use the display frame size as the buffer size. |
| if (getActiveWidth(s) < UINT32_MAX && getActiveHeight(s) < UINT32_MAX) { |
| return Rect(getActiveWidth(s), getActiveHeight(s)); |
| } |
| |
| if (mBufferInfo.mBuffer == nullptr) { |
| return Rect::INVALID_RECT; |
| } |
| |
| // if the display frame is not defined, use the parent bounds as the buffer size. |
| const auto& p = mDrawingParent.promote(); |
| if (p != nullptr) { |
| Rect parentBounds = Rect(p->getBounds(Region())); |
| if (!parentBounds.isEmpty()) { |
| return parentBounds; |
| } |
| } |
| |
| return Rect::INVALID_RECT; |
| } |
| |
| FloatRect BufferStateLayer::computeSourceBounds(const FloatRect& parentBounds) const { |
| const State& s(getDrawingState()); |
| // for buffer state layers we use the display frame size as the buffer size. |
| if (getActiveWidth(s) < UINT32_MAX && getActiveHeight(s) < UINT32_MAX) { |
| return FloatRect(0, 0, getActiveWidth(s), getActiveHeight(s)); |
| } |
| |
| // if the display frame is not defined, use the parent bounds as the buffer size. |
| return parentBounds; |
| } |
| |
| // ----------------------------------------------------------------------- |
| |
| // ----------------------------------------------------------------------- |
| // Interface implementation for BufferLayer |
| // ----------------------------------------------------------------------- |
| bool BufferStateLayer::fenceHasSignaled() const { |
| const bool fenceSignaled = |
| getDrawingState().acquireFence->getStatus() == Fence::Status::Signaled; |
| if (!fenceSignaled) { |
| mFlinger->mTimeStats->incrementLatchSkipped(getSequence(), |
| TimeStats::LatchSkipReason::LateAcquire); |
| } |
| |
| return fenceSignaled; |
| } |
| |
| bool BufferStateLayer::framePresentTimeIsCurrent(nsecs_t expectedPresentTime) const { |
| if (!hasFrameUpdate() || isRemovedFromCurrentState()) { |
| return true; |
| } |
| |
| return mCurrentState.isAutoTimestamp || mCurrentState.desiredPresentTime <= expectedPresentTime; |
| } |
| |
| bool BufferStateLayer::onPreComposition(nsecs_t refreshStartTime) { |
| for (const auto& handle : mDrawingState.callbackHandles) { |
| handle->refreshStartTime = refreshStartTime; |
| } |
| return BufferLayer::onPreComposition(refreshStartTime); |
| } |
| |
| uint64_t BufferStateLayer::getFrameNumber(nsecs_t /*expectedPresentTime*/) const { |
| return mDrawingState.frameNumber; |
| } |
| |
| /** |
| * This is the frameNumber used for deferred transaction signalling. We need to use this because |
| * of cases where we defer a transaction for a surface to itself. In the BLAST world this |
| * may not make a huge amount of sense (Why not just merge the Buffer transaction with the |
| * deferred transaction?) but this is an important legacy use case, for example moving |
| * a window at the same time it draws makes use of this kind of technique. So anyway |
| * imagine we have something like this: |
| * |
| * Transaction { // containing |
| * Buffer -> frameNumber = 2 |
| * DeferTransactionUntil -> frameNumber = 2 |
| * Random other stuff |
| * } |
| * Now imagine getHeadFrameNumber returned mDrawingState.mFrameNumber (or mCurrentFrameNumber). |
| * Prior to doTransaction SurfaceFlinger will call notifyAvailableFrames, but because we |
| * haven't swapped mCurrentState to mDrawingState yet we will think the sync point |
| * is not ready. So we will return false from applyPendingState and not swap |
| * current state to drawing state. But because we don't swap current state |
| * to drawing state the number will never update and we will be stuck. This way |
| * we can see we need to return the frame number for the buffer we are about |
| * to apply. |
| */ |
| uint64_t BufferStateLayer::getHeadFrameNumber(nsecs_t /* expectedPresentTime */) const { |
| return mCurrentState.frameNumber; |
| } |
| |
| void BufferStateLayer::setAutoRefresh(bool autoRefresh) { |
| if (!mAutoRefresh.exchange(autoRefresh)) { |
| mFlinger->signalLayerUpdate(); |
| } |
| } |
| |
| bool BufferStateLayer::latchSidebandStream(bool& recomputeVisibleRegions) { |
| if (mSidebandStreamChanged.exchange(false)) { |
| const State& s(getDrawingState()); |
| // mSidebandStreamChanged was true |
| mSidebandStream = s.sidebandStream; |
| editCompositionState()->sidebandStream = mSidebandStream; |
| if (mSidebandStream != nullptr) { |
| setTransactionFlags(eTransactionNeeded); |
| mFlinger->setTransactionFlags(eTraversalNeeded); |
| } |
| recomputeVisibleRegions = true; |
| |
| return true; |
| } |
| return false; |
| } |
| |
| bool BufferStateLayer::hasFrameUpdate() const { |
| const State& c(getCurrentState()); |
| return mCurrentStateModified && (c.buffer != nullptr || c.bgColorLayer != nullptr); |
| } |
| |
| status_t BufferStateLayer::updateTexImage(bool& /*recomputeVisibleRegions*/, nsecs_t latchTime, |
| nsecs_t /*expectedPresentTime*/) { |
| const State& s(getDrawingState()); |
| |
| if (!s.buffer) { |
| if (s.bgColorLayer) { |
| for (auto& handle : mDrawingState.callbackHandles) { |
| handle->latchTime = latchTime; |
| } |
| } |
| return NO_ERROR; |
| } |
| |
| for (auto& handle : mDrawingState.callbackHandles) { |
| if (handle->frameNumber == mDrawingState.frameNumber) { |
| handle->latchTime = latchTime; |
| } |
| } |
| |
| const int32_t layerId = getSequence(); |
| const uint64_t bufferId = mDrawingState.buffer->getId(); |
| const uint64_t frameNumber = mDrawingState.frameNumber; |
| const auto acquireFence = std::make_shared<FenceTime>(mDrawingState.acquireFence); |
| mFlinger->mTimeStats->setAcquireFence(layerId, frameNumber, acquireFence); |
| mFlinger->mTimeStats->setLatchTime(layerId, frameNumber, latchTime); |
| |
| mFlinger->mFrameTracer->traceFence(layerId, bufferId, frameNumber, acquireFence, |
| FrameTracer::FrameEvent::ACQUIRE_FENCE); |
| mFlinger->mFrameTracer->traceTimestamp(layerId, bufferId, frameNumber, latchTime, |
| FrameTracer::FrameEvent::LATCH); |
| |
| auto& bufferSurfaceFrame = mDrawingState.bufferSurfaceFrameTX; |
| if (bufferSurfaceFrame != nullptr && |
| bufferSurfaceFrame->getPresentState() != PresentState::Presented) { |
| // Update only if the bufferSurfaceFrame wasn't already presented. A Presented |
| // bufferSurfaceFrame could be seen here if a pending state was applied successfully and we |
| // are processing the next state. |
| addSurfaceFramePresentedForBuffer(bufferSurfaceFrame, |
| mDrawingState.acquireFenceTime->getSignalTime(), |
| latchTime); |
| } |
| |
| mCurrentStateModified = false; |
| |
| return NO_ERROR; |
| } |
| |
| status_t BufferStateLayer::updateActiveBuffer() { |
| const State& s(getDrawingState()); |
| |
| if (s.buffer == nullptr) { |
| return BAD_VALUE; |
| } |
| |
| if (s.buffer != mBufferInfo.mBuffer) { |
| decrementPendingBufferCount(); |
| } |
| |
| mPreviousBufferId = getCurrentBufferId(); |
| mBufferInfo.mBuffer = s.buffer; |
| mBufferInfo.mFence = s.acquireFence; |
| |
| return NO_ERROR; |
| } |
| |
| status_t BufferStateLayer::updateFrameNumber(nsecs_t latchTime) { |
| // TODO(marissaw): support frame history events |
| mPreviousFrameNumber = mCurrentFrameNumber; |
| mCurrentFrameNumber = mDrawingState.frameNumber; |
| { |
| Mutex::Autolock lock(mFrameEventHistoryMutex); |
| mFrameEventHistory.addLatch(mCurrentFrameNumber, latchTime); |
| } |
| return NO_ERROR; |
| } |
| |
| void BufferStateLayer::HwcSlotGenerator::bufferErased(const client_cache_t& clientCacheId) { |
| std::lock_guard lock(mMutex); |
| if (!clientCacheId.isValid()) { |
| ALOGE("invalid process, failed to erase buffer"); |
| return; |
| } |
| eraseBufferLocked(clientCacheId); |
| } |
| |
| uint32_t BufferStateLayer::HwcSlotGenerator::getHwcCacheSlot(const client_cache_t& clientCacheId) { |
| std::lock_guard<std::mutex> lock(mMutex); |
| auto itr = mCachedBuffers.find(clientCacheId); |
| if (itr == mCachedBuffers.end()) { |
| return addCachedBuffer(clientCacheId); |
| } |
| auto& [hwcCacheSlot, counter] = itr->second; |
| counter = mCounter++; |
| return hwcCacheSlot; |
| } |
| |
| uint32_t BufferStateLayer::HwcSlotGenerator::addCachedBuffer(const client_cache_t& clientCacheId) |
| REQUIRES(mMutex) { |
| if (!clientCacheId.isValid()) { |
| ALOGE("invalid process, returning invalid slot"); |
| return BufferQueue::INVALID_BUFFER_SLOT; |
| } |
| |
| ClientCache::getInstance().registerErasedRecipient(clientCacheId, wp<ErasedRecipient>(this)); |
| |
| uint32_t hwcCacheSlot = getFreeHwcCacheSlot(); |
| mCachedBuffers[clientCacheId] = {hwcCacheSlot, mCounter++}; |
| return hwcCacheSlot; |
| } |
| |
| uint32_t BufferStateLayer::HwcSlotGenerator::getFreeHwcCacheSlot() REQUIRES(mMutex) { |
| if (mFreeHwcCacheSlots.empty()) { |
| evictLeastRecentlyUsed(); |
| } |
| |
| uint32_t hwcCacheSlot = mFreeHwcCacheSlots.top(); |
| mFreeHwcCacheSlots.pop(); |
| return hwcCacheSlot; |
| } |
| |
| void BufferStateLayer::HwcSlotGenerator::evictLeastRecentlyUsed() REQUIRES(mMutex) { |
| uint64_t minCounter = UINT_MAX; |
| client_cache_t minClientCacheId = {}; |
| for (const auto& [clientCacheId, slotCounter] : mCachedBuffers) { |
| const auto& [hwcCacheSlot, counter] = slotCounter; |
| if (counter < minCounter) { |
| minCounter = counter; |
| minClientCacheId = clientCacheId; |
| } |
| } |
| eraseBufferLocked(minClientCacheId); |
| |
| ClientCache::getInstance().unregisterErasedRecipient(minClientCacheId, this); |
| } |
| |
| void BufferStateLayer::HwcSlotGenerator::eraseBufferLocked(const client_cache_t& clientCacheId) |
| REQUIRES(mMutex) { |
| auto itr = mCachedBuffers.find(clientCacheId); |
| if (itr == mCachedBuffers.end()) { |
| return; |
| } |
| auto& [hwcCacheSlot, counter] = itr->second; |
| |
| // TODO send to hwc cache and resources |
| |
| mFreeHwcCacheSlots.push(hwcCacheSlot); |
| mCachedBuffers.erase(clientCacheId); |
| } |
| |
| void BufferStateLayer::gatherBufferInfo() { |
| BufferLayer::gatherBufferInfo(); |
| |
| const State& s(getDrawingState()); |
| mBufferInfo.mDesiredPresentTime = s.desiredPresentTime; |
| mBufferInfo.mFenceTime = std::make_shared<FenceTime>(s.acquireFence); |
| mBufferInfo.mFence = s.acquireFence; |
| mBufferInfo.mTransform = s.bufferTransform; |
| mBufferInfo.mDataspace = translateDataspace(s.dataspace); |
| mBufferInfo.mCrop = computeCrop(s); |
| mBufferInfo.mScaleMode = NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW; |
| mBufferInfo.mSurfaceDamage = s.surfaceDamageRegion; |
| mBufferInfo.mHdrMetadata = s.hdrMetadata; |
| mBufferInfo.mApi = s.api; |
| mBufferInfo.mTransformToDisplayInverse = s.transformToDisplayInverse; |
| mBufferInfo.mBufferSlot = mHwcSlotGenerator->getHwcCacheSlot(s.clientCacheId); |
| } |
| |
| uint32_t BufferStateLayer::getEffectiveScalingMode() const { |
| return NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW; |
| } |
| |
| Rect BufferStateLayer::computeCrop(const State& s) { |
| if (s.crop.isEmpty() && s.buffer) { |
| return s.buffer->getBounds(); |
| } else if (s.buffer) { |
| Rect crop = s.crop; |
| crop.left = std::max(crop.left, 0); |
| crop.top = std::max(crop.top, 0); |
| uint32_t bufferWidth = s.buffer->getWidth(); |
| uint32_t bufferHeight = s.buffer->getHeight(); |
| if (bufferHeight <= std::numeric_limits<int32_t>::max() && |
| bufferWidth <= std::numeric_limits<int32_t>::max()) { |
| crop.right = std::min(crop.right, static_cast<int32_t>(bufferWidth)); |
| crop.bottom = std::min(crop.bottom, static_cast<int32_t>(bufferHeight)); |
| } |
| if (!crop.isValid()) { |
| // Crop rect is out of bounds, return whole buffer |
| return s.buffer->getBounds(); |
| } |
| return crop; |
| } |
| return s.crop; |
| } |
| |
| sp<Layer> BufferStateLayer::createClone() { |
| LayerCreationArgs args(mFlinger.get(), nullptr, mName + " (Mirror)", 0, 0, 0, LayerMetadata()); |
| args.textureName = mTextureName; |
| sp<BufferStateLayer> layer = mFlinger->getFactory().createBufferStateLayer(args); |
| layer->mHwcSlotGenerator = mHwcSlotGenerator; |
| layer->setInitialValuesForClone(this); |
| return layer; |
| } |
| |
| bool BufferStateLayer::bufferNeedsFiltering() const { |
| const State& s(getDrawingState()); |
| if (!s.buffer) { |
| return false; |
| } |
| |
| uint32_t bufferWidth = s.buffer->width; |
| uint32_t bufferHeight = s.buffer->height; |
| |
| // Undo any transformations on the buffer and return the result. |
| if (s.bufferTransform & ui::Transform::ROT_90) { |
| std::swap(bufferWidth, bufferHeight); |
| } |
| |
| if (s.transformToDisplayInverse) { |
| uint32_t invTransform = DisplayDevice::getPrimaryDisplayRotationFlags(); |
| if (invTransform & ui::Transform::ROT_90) { |
| std::swap(bufferWidth, bufferHeight); |
| } |
| } |
| |
| const Rect layerSize{getBounds()}; |
| return layerSize.width() != bufferWidth || layerSize.height() != bufferHeight; |
| } |
| |
| void BufferStateLayer::decrementPendingBufferCount() { |
| int32_t pendingBuffers = --mPendingBufferTransactions; |
| tracePendingBufferCount(pendingBuffers); |
| } |
| |
| void BufferStateLayer::tracePendingBufferCount(int32_t pendingBuffers) { |
| ATRACE_INT(mBlastTransactionName.c_str(), pendingBuffers); |
| } |
| |
| void BufferStateLayer::bufferMayChange(sp<GraphicBuffer>& newBuffer) { |
| if (mDrawingState.buffer != nullptr && mDrawingState.buffer != mBufferInfo.mBuffer && |
| newBuffer != mDrawingState.buffer) { |
| // If we are about to update mDrawingState.buffer but it has not yet latched |
| // then we will drop a buffer and should decrement the pending buffer count and |
| // call any release buffer callbacks if set. |
| callReleaseBufferCallback(mDrawingState.releaseBufferListener, mDrawingState.buffer, |
| mDrawingState.acquireFence); |
| decrementPendingBufferCount(); |
| } |
| } |
| |
| /* |
| * We don't want to send the layer's transform to input, but rather the |
| * parent's transform. This is because BufferStateLayer's transform is |
| * information about how the buffer is placed on screen. The parent's |
| * transform makes more sense to send since it's information about how the |
| * layer is placed on screen. This transform is used by input to determine |
| * how to go from screen space back to window space. |
| */ |
| ui::Transform BufferStateLayer::getInputTransform() const { |
| sp<Layer> parent = mDrawingParent.promote(); |
| if (parent == nullptr) { |
| return ui::Transform(); |
| } |
| |
| return parent->getTransform(); |
| } |
| |
| /** |
| * Similar to getInputTransform, we need to update the bounds to include the transform. |
| * This is because bounds for BSL doesn't include buffer transform, where the input assumes |
| * that's already included. |
| */ |
| Rect BufferStateLayer::getInputBounds() const { |
| Rect bufferBounds = getCroppedBufferSize(getDrawingState()); |
| if (mDrawingState.transform.getType() == ui::Transform::IDENTITY || !bufferBounds.isValid()) { |
| return bufferBounds; |
| } |
| return mDrawingState.transform.transform(bufferBounds); |
| } |
| |
| } // namespace android |
| |
| // TODO(b/129481165): remove the #pragma below and fix conversion issues |
| #pragma clang diagnostic pop // ignored "-Wconversion -Wextra" |
