| /* |
| * 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" |
| |
| //#define LOG_NDEBUG 0 |
| #undef LOG_TAG |
| #define LOG_TAG "BufferStateLayer" |
| #define ATRACE_TAG ATRACE_TAG_GRAPHICS |
| |
| #include "BufferStateLayer.h" |
| |
| #include <limits> |
| |
| #include <compositionengine/LayerFECompositionState.h> |
| #include <gui/BufferQueue.h> |
| #include <private/gui/SyncFeatures.h> |
| #include <renderengine/Image.h> |
| |
| #include "EffectLayer.h" |
| #include "TimeStats/TimeStats.h" |
| |
| namespace android { |
| |
| // 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()) { |
| mOverrideScalingMode = NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW; |
| 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()); |
| engine.unbindExternalTextureBuffer(mBufferInfo.mBuffer->getId()); |
| } |
| } |
| |
| // ----------------------------------------------------------------------- |
| // Interface implementation for Layer |
| // ----------------------------------------------------------------------- |
| void BufferStateLayer::onLayerDisplayed(const sp<Fence>& releaseFence) { |
| // 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. |
| for (auto& handle : mDrawingState.callbackHandles) { |
| if (handle->releasePreviousBuffer) { |
| handle->previousReleaseFence = releaseFence; |
| break; |
| } |
| } |
| |
| mPreviousReleaseFence = releaseFence; |
| |
| // Prevent tracing the same release multiple times. |
| if (mPreviousFrameNumber != mPreviousReleasedFrameNumber) { |
| mPreviousReleasedFrameNumber = mPreviousFrameNumber; |
| } |
| } |
| |
| void BufferStateLayer::releasePendingBuffer(nsecs_t dequeueReadyTime) { |
| for (const auto& handle : mDrawingState.callbackHandles) { |
| handle->transformHint = mTransformHint; |
| handle->dequeueReadyTime = dequeueReadyTime; |
| } |
| |
| mFlinger->getTransactionCompletedThread().finalizePendingCallbackHandles( |
| mDrawingState.callbackHandles); |
| |
| 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::shouldPresentNow(nsecs_t /*expectedPresentTime*/) const { |
| if (getSidebandStreamChanged() || getAutoRefresh()) { |
| return true; |
| } |
| |
| return hasFrameUpdate(); |
| } |
| |
| 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))) && |
| !mLayerDetached; |
| } |
| |
| /* TODO: vhau uncomment once deferred transaction migration complete in |
| * WindowManager |
| void BufferStateLayer::pushPendingState() { |
| if (!mCurrentState.modified) { |
| return; |
| } |
| mPendingStates.push_back(mCurrentState); |
| ATRACE_INT(mTransactionName.c_str(), mPendingStates.size()); |
| } |
| */ |
| |
| bool BufferStateLayer::applyPendingStates(Layer::State* stateToCommit) { |
| mCurrentStateModified = mCurrentState.modified; |
| bool stateUpdateAvailable = Layer::applyPendingStates(stateToCommit); |
| mCurrentStateModified = stateUpdateAvailable && mCurrentStateModified; |
| mCurrentState.modified = false; |
| return stateUpdateAvailable; |
| } |
| |
| // Crop that applies to the window |
| Rect BufferStateLayer::getCrop(const Layer::State& /*s*/) const { |
| return Rect::INVALID_RECT; |
| } |
| |
| bool BufferStateLayer::setTransform(uint32_t transform) { |
| if (mCurrentState.transform == transform) return false; |
| mCurrentState.transform = 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) { |
| Rect c = crop; |
| if (c.left < 0) { |
| c.left = 0; |
| } |
| if (c.top < 0) { |
| c.top = 0; |
| } |
| // If the width and/or height are < 0, make it [0, 0, -1, -1] so the equality comparision below |
| // treats all invalid rectangles the same. |
| if (!c.isValid()) { |
| c.makeInvalid(); |
| } |
| |
| if (mCurrentState.crop == c) return false; |
| mCurrentState.crop = c; |
| mCurrentState.modified = true; |
| setTransactionFlags(eTransactionNeeded); |
| return true; |
| } |
| |
| bool BufferStateLayer::setFrame(const Rect& frame) { |
| int x = frame.left; |
| int y = frame.top; |
| int w = frame.getWidth(); |
| int h = frame.getHeight(); |
| |
| if (x < 0) { |
| x = 0; |
| w = frame.right; |
| } |
| |
| if (y < 0) { |
| y = 0; |
| h = frame.bottom; |
| } |
| |
| if (mCurrentState.active.transform.tx() == x && mCurrentState.active.transform.ty() == y && |
| mCurrentState.active.w == w && mCurrentState.active.h == h) { |
| return false; |
| } |
| |
| if (!frame.isValid()) { |
| x = y = w = h = 0; |
| } |
| mCurrentState.active.transform.set(x, y); |
| mCurrentState.active.w = w; |
| mCurrentState.active.h = h; |
| |
| 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, |
| const client_cache_t& clientCacheId) { |
| if (mCurrentState.buffer) { |
| mReleasePreviousBuffer = true; |
| } |
| |
| mCurrentState.frameNumber++; |
| |
| 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(), |
| postTime); |
| desiredPresentTime = desiredPresentTime <= 0 ? 0 : desiredPresentTime; |
| mCurrentState.desiredPresentTime = desiredPresentTime; |
| |
| mFlinger->mScheduler->recordLayerHistory(this, desiredPresentTime, |
| LayerHistory::LayerUpdateType::Buffer); |
| |
| addFrameEvent(acquireFence, postTime, desiredPresentTime); |
| return true; |
| } |
| |
| bool BufferStateLayer::setAcquireFence(const sp<Fence>& fence) { |
| // The acquire fences of BufferStateLayers have already signaled before they are set |
| mCallbackHandleAcquireTime = fence->getSignalTime(); |
| |
| mCurrentState.acquireFence = fence; |
| 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; |
| |
| // Notify the transaction completed thread that there is a pending latched callback |
| // handle |
| mFlinger->getTransactionCompletedThread().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->getTransactionCompletedThread().registerUnpresentedCallbackHandle(handle); |
| } |
| } |
| |
| mReleasePreviousBuffer = false; |
| mCallbackHandleAcquireTime = -1; |
| |
| return willPresent; |
| } |
| |
| void BufferStateLayer::forceSendCallbacks() { |
| mFlinger->getTransactionCompletedThread().finalizePendingCallbackHandles( |
| mCurrentState.callbackHandles); |
| } |
| |
| 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 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 { |
| if (latchUnsignaledBuffers()) { |
| return true; |
| } |
| |
| 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.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; |
| } |
| |
| bool BufferStateLayer::getAutoRefresh() const { |
| // TODO(marissaw): support shared buffer mode |
| return false; |
| } |
| |
| bool BufferStateLayer::getSidebandStreamChanged() const { |
| return mSidebandStreamChanged.load(); |
| } |
| |
| 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::bindTextureImage() { |
| const State& s(getDrawingState()); |
| auto& engine(mFlinger->getRenderEngine()); |
| |
| return engine.bindExternalTextureBuffer(mTextureName, s.buffer, s.acquireFence); |
| } |
| |
| 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; |
| } |
| |
| const int32_t layerId = getSequence(); |
| |
| // Reject if the layer is invalid |
| uint32_t bufferWidth = s.buffer->width; |
| uint32_t bufferHeight = s.buffer->height; |
| |
| if (s.transform & 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); |
| } |
| } |
| |
| if (getEffectiveScalingMode() == NATIVE_WINDOW_SCALING_MODE_FREEZE && |
| (s.active.w != bufferWidth || s.active.h != bufferHeight)) { |
| ALOGE("[%s] rejecting buffer: " |
| "bufferWidth=%d, bufferHeight=%d, front.active.{w=%d, h=%d}", |
| getDebugName(), bufferWidth, bufferHeight, s.active.w, s.active.h); |
| mFlinger->mTimeStats->removeTimeRecord(layerId, mDrawingState.frameNumber); |
| return BAD_VALUE; |
| } |
| |
| for (auto& handle : mDrawingState.callbackHandles) { |
| handle->latchTime = latchTime; |
| handle->frameNumber = mDrawingState.frameNumber; |
| } |
| |
| if (!SyncFeatures::getInstance().useNativeFenceSync()) { |
| // Bind the new buffer to the GL texture. |
| // |
| // Older devices require the "implicit" synchronization provided |
| // by glEGLImageTargetTexture2DOES, which this method calls. Newer |
| // devices will either call this in Layer::onDraw, or (if it's not |
| // a GL-composited layer) not at all. |
| status_t err = bindTextureImage(); |
| if (err != NO_ERROR) { |
| mFlinger->mTimeStats->onDestroy(layerId); |
| return BAD_VALUE; |
| } |
| } |
| |
| mFlinger->mTimeStats->setAcquireFence(layerId, mDrawingState.frameNumber, |
| std::make_shared<FenceTime>(mDrawingState.acquireFence)); |
| mFlinger->mTimeStats->setLatchTime(layerId, mDrawingState.frameNumber, latchTime); |
| |
| mCurrentStateModified = false; |
| |
| return NO_ERROR; |
| } |
| |
| status_t BufferStateLayer::updateActiveBuffer() { |
| const State& s(getDrawingState()); |
| |
| if (s.buffer == nullptr) { |
| return BAD_VALUE; |
| } |
| |
| 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.transform; |
| 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); |
| } |
| |
| 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; |
| } |
| |
| Layer::RoundedCornerState BufferStateLayer::getRoundedCornerState() const { |
| const auto& p = mDrawingParent.promote(); |
| if (p != nullptr) { |
| RoundedCornerState parentState = p->getRoundedCornerState(); |
| if (parentState.radius > 0) { |
| ui::Transform t = getActiveTransform(getDrawingState()); |
| t = t.inverse(); |
| parentState.cropRect = t.transform(parentState.cropRect); |
| // The rounded corners shader only accepts 1 corner radius for performance reasons, |
| // but a transform matrix can define horizontal and vertical scales. |
| // Let's take the average between both of them and pass into the shader, practically we |
| // never do this type of transformation on windows anyway. |
| parentState.radius *= (t[0][0] + t[1][1]) / 2.0f; |
| return parentState; |
| } |
| } |
| const float radius = getDrawingState().cornerRadius; |
| const State& s(getDrawingState()); |
| if (radius <= 0 || (getActiveWidth(s) == UINT32_MAX && getActiveHeight(s) == UINT32_MAX)) |
| return RoundedCornerState(); |
| return RoundedCornerState(FloatRect(static_cast<float>(s.active.transform.tx()), |
| static_cast<float>(s.active.transform.ty()), |
| static_cast<float>(s.active.transform.tx() + s.active.w), |
| static_cast<float>(s.active.transform.ty() + s.active.h)), |
| radius); |
| } |
| } // namespace android |
| |
| // TODO(b/129481165): remove the #pragma below and fix conversion issues |
| #pragma clang diagnostic pop // ignored "-Wconversion" |
