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Diffstat (limited to 'gfx/layers/wr/AsyncImagePipelineManager.cpp')
| -rw-r--r-- | gfx/layers/wr/AsyncImagePipelineManager.cpp | 771 |
1 files changed, 771 insertions, 0 deletions
diff --git a/gfx/layers/wr/AsyncImagePipelineManager.cpp b/gfx/layers/wr/AsyncImagePipelineManager.cpp new file mode 100644 index 0000000000..4849b651a3 --- /dev/null +++ b/gfx/layers/wr/AsyncImagePipelineManager.cpp @@ -0,0 +1,771 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "AsyncImagePipelineManager.h" + +#include <algorithm> +#include <iterator> + +#include "CompositableHost.h" +#include "gfxEnv.h" +#include "mozilla/gfx/gfxVars.h" +#include "mozilla/layers/CompositorThread.h" +#include "mozilla/layers/RemoteTextureHostWrapper.h" +#include "mozilla/layers/SharedSurfacesParent.h" +#include "mozilla/layers/WebRenderImageHost.h" +#include "mozilla/layers/WebRenderTextureHost.h" +#include "mozilla/webrender/RenderThread.h" +#include "mozilla/webrender/WebRenderAPI.h" +#include "mozilla/webrender/WebRenderTypes.h" + +#ifdef MOZ_WIDGET_ANDROID +# include "mozilla/layers/TextureHostOGL.h" +#endif + +namespace mozilla { +namespace layers { + +AsyncImagePipelineManager::ForwardingExternalImage::~ForwardingExternalImage() { + DebugOnly<bool> released = SharedSurfacesParent::Release(mImageId); + MOZ_ASSERT(released); +} + +AsyncImagePipelineManager::AsyncImagePipeline::AsyncImagePipeline( + wr::PipelineId aPipelineId, layers::WebRenderBackend aBackend) + : mInitialised(false), + mIsChanged(false), + mUseExternalImage(false), + mRotation(VideoInfo::Rotation::kDegree_0), + mFilter(wr::ImageRendering::Auto), + mMixBlendMode(wr::MixBlendMode::Normal), + mDLBuilder(aPipelineId, aBackend) {} + +AsyncImagePipelineManager::AsyncImagePipelineManager( + RefPtr<wr::WebRenderAPI>&& aApi, bool aUseCompositorWnd) + : mApi(aApi), + mUseCompositorWnd(aUseCompositorWnd), + mIdNamespace(mApi->GetNamespace()), + mUseTripleBuffering(mApi->GetUseTripleBuffering()), + mResourceId(0), + mAsyncImageEpoch{0}, + mWillGenerateFrame(false), + mDestroyed(false), +#ifdef XP_WIN + mUseWebRenderDCompVideoOverlayWin( + gfx::gfxVars::UseWebRenderDCompVideoOverlayWin()), +#endif + mRenderSubmittedUpdatesLock("SubmittedUpdatesLock"), + mLastCompletedFrameId(0) { + MOZ_COUNT_CTOR(AsyncImagePipelineManager); +} + +AsyncImagePipelineManager::~AsyncImagePipelineManager() { + MOZ_COUNT_DTOR(AsyncImagePipelineManager); +} + +void AsyncImagePipelineManager::Destroy() { + MOZ_ASSERT(!mDestroyed); + mApi = nullptr; + mPipelineTexturesHolders.Clear(); + mDestroyed = true; +} + +/* static */ +wr::ExternalImageId AsyncImagePipelineManager::GetNextExternalImageId() { + static std::atomic<uint64_t> sCounter = 0; + + uint64_t id = ++sCounter; + // Upper 32bit(namespace) needs to be 0. + // Namespace other than 0 might be used by others. + MOZ_RELEASE_ASSERT(id != UINT32_MAX); + return wr::ToExternalImageId(id); +} + +void AsyncImagePipelineManager::SetWillGenerateFrame() { + MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread()); + + mWillGenerateFrame = true; +} + +bool AsyncImagePipelineManager::GetAndResetWillGenerateFrame() { + MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread()); + + bool ret = mWillGenerateFrame; + mWillGenerateFrame = false; + return ret; +} + +void AsyncImagePipelineManager::AddPipeline(const wr::PipelineId& aPipelineId, + WebRenderBridgeParent* aWrBridge) { + if (mDestroyed) { + return; + } + + mPipelineTexturesHolders.WithEntryHandle( + wr::AsUint64(aPipelineId), [&](auto&& holder) { + if (holder) { + // This could happen during tab move between different windows. + // Previously removed holder could be still alive for waiting + // destroyed. + MOZ_ASSERT(holder.Data()->mDestroyedEpoch.isSome()); + holder.Data()->mDestroyedEpoch = Nothing(); // Revive holder + holder.Data()->mWrBridge = aWrBridge; + return; + } + + holder.Insert(MakeUnique<PipelineTexturesHolder>())->mWrBridge = + aWrBridge; + }); +} + +void AsyncImagePipelineManager::RemovePipeline( + const wr::PipelineId& aPipelineId, const wr::Epoch& aEpoch) { + if (mDestroyed) { + return; + } + + PipelineTexturesHolder* holder = + mPipelineTexturesHolders.Get(wr::AsUint64(aPipelineId)); + MOZ_ASSERT(holder); + if (!holder) { + return; + } + holder->mWrBridge = nullptr; + holder->mDestroyedEpoch = Some(aEpoch); +} + +WebRenderBridgeParent* AsyncImagePipelineManager::GetWrBridge( + const wr::PipelineId& aPipelineId) { + if (mDestroyed) { + return nullptr; + } + + PipelineTexturesHolder* holder = + mPipelineTexturesHolders.Get(wr::AsUint64(aPipelineId)); + if (!holder) { + return nullptr; + } + if (holder->mWrBridge) { + MOZ_ASSERT(holder->mDestroyedEpoch.isNothing()); + return holder->mWrBridge; + } + + return nullptr; +} + +void AsyncImagePipelineManager::AddAsyncImagePipeline( + const wr::PipelineId& aPipelineId, WebRenderImageHost* aImageHost) { + if (mDestroyed) { + return; + } + MOZ_ASSERT(aImageHost); + uint64_t id = wr::AsUint64(aPipelineId); + + MOZ_ASSERT(!mAsyncImagePipelines.Contains(id)); + auto holder = + MakeUnique<AsyncImagePipeline>(aPipelineId, mApi->GetBackendType()); + holder->mImageHost = aImageHost; + mAsyncImagePipelines.InsertOrUpdate(id, std::move(holder)); + AddPipeline(aPipelineId, /* aWrBridge */ nullptr); +} + +void AsyncImagePipelineManager::RemoveAsyncImagePipeline( + const wr::PipelineId& aPipelineId, wr::TransactionBuilder& aTxn) { + if (mDestroyed) { + return; + } + + uint64_t id = wr::AsUint64(aPipelineId); + if (auto entry = mAsyncImagePipelines.Lookup(id)) { + const auto& holder = entry.Data(); + wr::Epoch epoch = GetNextImageEpoch(); + aTxn.ClearDisplayList(epoch, aPipelineId); + for (wr::ImageKey key : holder->mKeys) { + aTxn.DeleteImage(key); + } + entry.Remove(); + RemovePipeline(aPipelineId, epoch); + } +} + +void AsyncImagePipelineManager::UpdateAsyncImagePipeline( + const wr::PipelineId& aPipelineId, const LayoutDeviceRect& aScBounds, + const VideoInfo::Rotation aRotation, const wr::ImageRendering& aFilter, + const wr::MixBlendMode& aMixBlendMode) { + if (mDestroyed) { + return; + } + AsyncImagePipeline* pipeline = + mAsyncImagePipelines.Get(wr::AsUint64(aPipelineId)); + if (!pipeline) { + return; + } + pipeline->mInitialised = true; + pipeline->Update(aScBounds, aRotation, aFilter, aMixBlendMode); +} + +Maybe<TextureHost::ResourceUpdateOp> AsyncImagePipelineManager::UpdateImageKeys( + const wr::Epoch& aEpoch, const wr::PipelineId& aPipelineId, + AsyncImagePipeline* aPipeline, nsTArray<wr::ImageKey>& aKeys, + wr::TransactionBuilder& aSceneBuilderTxn, + wr::TransactionBuilder& aMaybeFastTxn, RemoteTextureInfoList* aList) { + MOZ_ASSERT(aKeys.IsEmpty()); + MOZ_ASSERT(aPipeline); + + TextureHost* texture = + aPipeline->mImageHost->GetAsTextureHostForComposite(this); + TextureHost* previousTexture = aPipeline->mCurrentTexture.get(); + + if (texture == previousTexture) { + // The texture has not changed, just reuse previous ImageKeys. + aKeys = aPipeline->mKeys.Clone(); + return Nothing(); + } + + if (!texture || texture->NumSubTextures() == 0) { + // We don't have a new texture or texture does not have SubTextures, there + // isn't much we can do. + aKeys = aPipeline->mKeys.Clone(); + return Nothing(); + } + + // Check if pending Remote texture exists. + auto* wrapper = texture->AsRemoteTextureHostWrapper(); + if (aList && wrapper && wrapper->IsReadyForRendering()) { + aList->mList.emplace(wrapper->mTextureId, wrapper->mOwnerId, + wrapper->mForPid); + } + + aPipeline->mCurrentTexture = texture; + + WebRenderTextureHost* wrTexture = texture->AsWebRenderTextureHost(); + MOZ_ASSERT(wrTexture); + if (!wrTexture) { + gfxCriticalNote << "WebRenderTextureHost is not used"; + } + + bool useExternalImage = !!wrTexture; + aPipeline->mUseExternalImage = useExternalImage; + + // The non-external image code path falls back to converting the texture into + // an rgb image. + auto numKeys = useExternalImage ? texture->NumSubTextures() : 1; + MOZ_ASSERT(numKeys > 0); + + // If we already had a texture and the format hasn't changed, better to reuse + // the image keys than create new ones. + auto backend = aSceneBuilderTxn.GetBackendType(); + bool canUpdate = + !!previousTexture && + previousTexture->GetTextureHostType() == texture->GetTextureHostType() && + previousTexture->GetSize() == texture->GetSize() && + previousTexture->GetFormat() == texture->GetFormat() && + previousTexture->GetColorDepth() == texture->GetColorDepth() && + previousTexture->NeedsYFlip() == texture->NeedsYFlip() && + previousTexture->SupportsExternalCompositing(backend) == + texture->SupportsExternalCompositing(backend) && + aPipeline->mKeys.Length() == numKeys; + + if (!canUpdate) { + for (auto key : aPipeline->mKeys) { + // Destroy ImageKeys on transaction of scene builder thread, since + // DisplayList is updated on SceneBuilder thread. It prevents too early + // ImageKey deletion. + aSceneBuilderTxn.DeleteImage(key); + } + aPipeline->mKeys.Clear(); + for (uint32_t i = 0; i < numKeys; ++i) { + aPipeline->mKeys.AppendElement(GenerateImageKey()); + } + } + + aKeys = aPipeline->mKeys.Clone(); + + auto op = canUpdate ? TextureHost::UPDATE_IMAGE : TextureHost::ADD_IMAGE; + + if (!useExternalImage) { + return UpdateWithoutExternalImage(texture, aKeys[0], op, aMaybeFastTxn); + } + + wrTexture->MaybeNotifyForUse(aMaybeFastTxn); + + Range<wr::ImageKey> keys(&aKeys[0], aKeys.Length()); + auto externalImageKey = wrTexture->GetExternalImageKey(); + wrTexture->PushResourceUpdates(aMaybeFastTxn, op, keys, externalImageKey); + + return Some(op); +} + +Maybe<TextureHost::ResourceUpdateOp> +AsyncImagePipelineManager::UpdateWithoutExternalImage( + TextureHost* aTexture, wr::ImageKey aKey, TextureHost::ResourceUpdateOp aOp, + wr::TransactionBuilder& aTxn) { + MOZ_ASSERT(aTexture); + + RefPtr<gfx::DataSourceSurface> dSurf = aTexture->GetAsSurface(); + if (!dSurf) { + NS_ERROR("TextureHost does not return DataSourceSurface"); + return Nothing(); + } + gfx::DataSourceSurface::MappedSurface map; + if (!dSurf->Map(gfx::DataSourceSurface::MapType::READ, &map)) { + NS_ERROR("DataSourceSurface failed to map"); + return Nothing(); + } + + gfx::IntSize size = dSurf->GetSize(); + wr::ImageDescriptor descriptor(size, map.mStride, dSurf->GetFormat()); + + // Costly copy right here... + wr::Vec<uint8_t> bytes; + bytes.PushBytes(Range<uint8_t>(map.mData, size.height * map.mStride)); + + if (aOp == TextureHost::UPDATE_IMAGE) { + aTxn.UpdateImageBuffer(aKey, descriptor, bytes); + } else { + aTxn.AddImage(aKey, descriptor, bytes); + } + + dSurf->Unmap(); + + return Some(aOp); +} + +void AsyncImagePipelineManager::ApplyAsyncImagesOfImageBridge( + wr::TransactionBuilder& aSceneBuilderTxn, + wr::TransactionBuilder& aFastTxn) { + if (mDestroyed || mAsyncImagePipelines.Count() == 0) { + return; + } + +#ifdef XP_WIN + // UseWebRenderDCompVideoOverlayWin() could be changed from true to false, + // when DCompVideoOverlay task is failed. In this case, DisplayItems need to + // be re-pushed to WebRender for disabling video overlay. + bool isChanged = mUseWebRenderDCompVideoOverlayWin != + gfx::gfxVars::UseWebRenderDCompVideoOverlayWin(); + if (isChanged) { + mUseWebRenderDCompVideoOverlayWin = + gfx::gfxVars::UseWebRenderDCompVideoOverlayWin(); + } +#endif + + wr::Epoch epoch = GetNextImageEpoch(); + + // We use a pipeline with a very small display list for each video element. + // Update each of them if needed. + for (const auto& entry : mAsyncImagePipelines) { + wr::PipelineId pipelineId = wr::AsPipelineId(entry.GetKey()); + AsyncImagePipeline* pipeline = entry.GetWeak(); + +#ifdef XP_WIN + if (isChanged) { + pipeline->mIsChanged = true; + } +#endif + + // If aync image pipeline does not use ImageBridge, do not need to apply. + if (!pipeline->mImageHost->GetAsyncRef()) { + continue; + } + ApplyAsyncImageForPipeline(epoch, pipelineId, pipeline, aSceneBuilderTxn, + aFastTxn, /* aList */ nullptr); + } +} + +wr::WrRotation ToWrRotation(VideoInfo::Rotation aRotation) { + switch (aRotation) { + case VideoInfo::Rotation::kDegree_0: + return wr::WrRotation::Degree0; + case VideoInfo::Rotation::kDegree_90: + return wr::WrRotation::Degree90; + case VideoInfo::Rotation::kDegree_180: + return wr::WrRotation::Degree180; + case VideoInfo::Rotation::kDegree_270: + return wr::WrRotation::Degree270; + } + return wr::WrRotation::Degree0; +} + +void AsyncImagePipelineManager::ApplyAsyncImageForPipeline( + const wr::Epoch& aEpoch, const wr::PipelineId& aPipelineId, + AsyncImagePipeline* aPipeline, wr::TransactionBuilder& aSceneBuilderTxn, + wr::TransactionBuilder& aMaybeFastTxn, RemoteTextureInfoList* aList) { + nsTArray<wr::ImageKey> keys; + auto op = UpdateImageKeys(aEpoch, aPipelineId, aPipeline, keys, + aSceneBuilderTxn, aMaybeFastTxn, aList); + + bool updateDisplayList = + aPipeline->mInitialised && + (aPipeline->mIsChanged || op == Some(TextureHost::ADD_IMAGE)) && + !!aPipeline->mCurrentTexture; + + if (!updateDisplayList) { + // We don't need to update the display list, either because we can't or + // because the previous one is still up to date. We may, however, have + // updated some resources. + + // Use transaction of scene builder thread to notify epoch. + // It is for making epoch update consistent. + aSceneBuilderTxn.UpdateEpoch(aPipelineId, aEpoch); + if (aPipeline->mCurrentTexture) { + HoldExternalImage(aPipelineId, aEpoch, aPipeline->mCurrentTexture); + } + return; + } + + aPipeline->mIsChanged = false; + aPipeline->mDLBuilder.Begin(); + + float opacity = 1.0f; + wr::StackingContextParams params; + params.opacity = &opacity; + params.mix_blend_mode = aPipeline->mMixBlendMode; + + wr::WrComputedTransformData computedTransform; + computedTransform.vertical_flip = + aPipeline->mCurrentTexture && aPipeline->mCurrentTexture->NeedsYFlip(); + computedTransform.scale_from = { + float(aPipeline->mCurrentTexture->GetSize().width), + float(aPipeline->mCurrentTexture->GetSize().height)}; + computedTransform.rotation = ToWrRotation(aPipeline->mRotation); + // We don't have a frame / per-frame key here, but we can use the pipeline id + // and the key kind to create a unique stable key. + computedTransform.key = wr::SpatialKey( + aPipelineId.mNamespace, aPipelineId.mHandle, wr::SpatialKeyKind::APZ); + params.computed_transform = &computedTransform; + + Maybe<wr::WrSpatialId> referenceFrameId = + aPipeline->mDLBuilder.PushStackingContext( + params, wr::ToLayoutRect(aPipeline->mScBounds), + // This is fine to do unconditionally because we only push images + // here. + wr::RasterSpace::Screen()); + + Maybe<wr::SpaceAndClipChainHelper> spaceAndClipChainHelper; + if (referenceFrameId) { + spaceAndClipChainHelper.emplace(aPipeline->mDLBuilder, + referenceFrameId.ref()); + } + + if (aPipeline->mCurrentTexture && !keys.IsEmpty()) { + LayoutDeviceRect rect(0, 0, aPipeline->mCurrentTexture->GetSize().width, + aPipeline->mCurrentTexture->GetSize().height); + + if (aPipeline->mUseExternalImage) { + MOZ_ASSERT(aPipeline->mCurrentTexture->AsWebRenderTextureHost()); + Range<wr::ImageKey> range_keys(&keys[0], keys.Length()); + TextureHost::PushDisplayItemFlagSet flags; + flags += TextureHost::PushDisplayItemFlag::PREFER_COMPOSITOR_SURFACE; + if (mApi->SupportsExternalBufferTextures()) { + flags += + TextureHost::PushDisplayItemFlag::SUPPORTS_EXTERNAL_BUFFER_TEXTURES; + } + aPipeline->mCurrentTexture->PushDisplayItems( + aPipeline->mDLBuilder, wr::ToLayoutRect(rect), wr::ToLayoutRect(rect), + aPipeline->mFilter, range_keys, flags); + HoldExternalImage(aPipelineId, aEpoch, aPipeline->mCurrentTexture); + } else { + MOZ_ASSERT(keys.Length() == 1); + aPipeline->mDLBuilder.PushImage(wr::ToLayoutRect(rect), + wr::ToLayoutRect(rect), true, false, + aPipeline->mFilter, keys[0]); + } + } + + spaceAndClipChainHelper.reset(); + aPipeline->mDLBuilder.PopStackingContext(referenceFrameId.isSome()); + + wr::BuiltDisplayList dl; + aPipeline->mDLBuilder.End(dl); + aSceneBuilderTxn.SetDisplayList(aEpoch, aPipelineId, dl.dl_desc, dl.dl_items, + dl.dl_cache, dl.dl_spatial_tree); +} + +void AsyncImagePipelineManager::ApplyAsyncImageForPipeline( + const wr::PipelineId& aPipelineId, wr::TransactionBuilder& aTxn, + wr::TransactionBuilder& aTxnForImageBridge, RemoteTextureInfoList* aList) { + AsyncImagePipeline* pipeline = + mAsyncImagePipelines.Get(wr::AsUint64(aPipelineId)); + if (!pipeline) { + return; + } + + // ready event of RemoteTexture that uses ImageBridge do not need to be + // checked here. + if (pipeline->mImageHost->GetAsyncRef()) { + aList = nullptr; + } + + wr::TransactionBuilder fastTxn(mApi, /* aUseSceneBuilderThread */ false); + wr::AutoTransactionSender sender(mApi, &fastTxn); + + // Transaction for async image pipeline that uses ImageBridge always need to + // be non low priority. + auto& sceneBuilderTxn = + pipeline->mImageHost->GetAsyncRef() ? aTxnForImageBridge : aTxn; + + // Use transaction of using non scene builder thread when ImageHost uses + // ImageBridge. ApplyAsyncImagesOfImageBridge() handles transaction of adding + // and updating wr::ImageKeys of ImageHosts that uses ImageBridge. Then + // AsyncImagePipelineManager always needs to use non scene builder thread + // transaction for adding and updating wr::ImageKeys of ImageHosts that uses + // ImageBridge. Otherwise, ordering of wr::ImageKeys updating in webrender + // becomes inconsistent. + auto& maybeFastTxn = pipeline->mImageHost->GetAsyncRef() ? fastTxn : aTxn; + + wr::Epoch epoch = GetNextImageEpoch(); + + ApplyAsyncImageForPipeline(epoch, aPipelineId, pipeline, sceneBuilderTxn, + maybeFastTxn, aList); +} + +void AsyncImagePipelineManager::SetEmptyDisplayList( + const wr::PipelineId& aPipelineId, wr::TransactionBuilder& aTxn, + wr::TransactionBuilder& aTxnForImageBridge) { + AsyncImagePipeline* pipeline = + mAsyncImagePipelines.Get(wr::AsUint64(aPipelineId)); + if (!pipeline) { + return; + } + + // Transaction for async image pipeline that uses ImageBridge always need to + // be non low priority. + auto& txn = pipeline->mImageHost->GetAsyncRef() ? aTxnForImageBridge : aTxn; + + wr::Epoch epoch = GetNextImageEpoch(); + wr::DisplayListBuilder builder(aPipelineId, mApi->GetBackendType()); + builder.Begin(); + + wr::BuiltDisplayList dl; + builder.End(dl); + txn.SetDisplayList(epoch, aPipelineId, dl.dl_desc, dl.dl_items, dl.dl_cache, + dl.dl_spatial_tree); +} + +void AsyncImagePipelineManager::HoldExternalImage( + const wr::PipelineId& aPipelineId, const wr::Epoch& aEpoch, + TextureHost* aTexture) { + if (mDestroyed) { + return; + } + MOZ_ASSERT(aTexture); + + PipelineTexturesHolder* holder = + mPipelineTexturesHolders.Get(wr::AsUint64(aPipelineId)); + MOZ_ASSERT(holder); + if (!holder) { + return; + } + if (aTexture->NeedsDeferredDeletion()) { + // Hold WebRenderTextureHost until rendering completed. + holder->mTextureHostsUntilRenderCompleted.emplace_back( + MakeUnique<ForwardingTextureHost>(aEpoch, aTexture)); + } else { + // Hold WebRenderTextureHost until submitted for rendering. + holder->mTextureHostsUntilRenderSubmitted.emplace_back(aEpoch, aTexture); + } +} + +void AsyncImagePipelineManager::HoldExternalImage( + const wr::PipelineId& aPipelineId, const wr::Epoch& aEpoch, + const wr::ExternalImageId& aImageId) { + if (mDestroyed) { + SharedSurfacesParent::Release(aImageId); + return; + } + + PipelineTexturesHolder* holder = + mPipelineTexturesHolders.Get(wr::AsUint64(aPipelineId)); + MOZ_ASSERT(holder); + if (!holder) { + SharedSurfacesParent::Release(aImageId); + return; + } + + holder->mExternalImages.emplace_back( + MakeUnique<ForwardingExternalImage>(aEpoch, aImageId)); +} + +void AsyncImagePipelineManager::NotifyPipelinesUpdated( + RefPtr<const wr::WebRenderPipelineInfo> aInfo, + wr::RenderedFrameId aLatestFrameId, + wr::RenderedFrameId aLastCompletedFrameId, ipc::FileDescriptor&& aFenceFd) { + MOZ_ASSERT(wr::RenderThread::IsInRenderThread()); + MOZ_ASSERT(mLastCompletedFrameId <= aLastCompletedFrameId.mId); + MOZ_ASSERT(aLatestFrameId.IsValid()); + + mLastCompletedFrameId = aLastCompletedFrameId.mId; + + { + // We need to lock for mRenderSubmittedUpdates because it can be accessed + // on the compositor thread. + MutexAutoLock lock(mRenderSubmittedUpdatesLock); + + // Move the pending updates into the submitted ones. + mRenderSubmittedUpdates.emplace_back( + aLatestFrameId, + WebRenderPipelineInfoHolder(std::move(aInfo), std::move(aFenceFd))); + } + + // Queue a runnable on the compositor thread to process the updates. + // This will also call CheckForTextureHostsNotUsedByGPU. + layers::CompositorThread()->Dispatch( + NewRunnableMethod("ProcessPipelineUpdates", this, + &AsyncImagePipelineManager::ProcessPipelineUpdates)); +} + +void AsyncImagePipelineManager::ProcessPipelineUpdates() { + MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread()); + + if (mDestroyed) { + return; + } + + std::vector<std::pair<wr::RenderedFrameId, WebRenderPipelineInfoHolder>> + submittedUpdates; + { + // We need to lock for mRenderSubmittedUpdates because it can be accessed on + // the compositor thread. + MutexAutoLock lock(mRenderSubmittedUpdatesLock); + mRenderSubmittedUpdates.swap(submittedUpdates); + } + + // submittedUpdates is a vector of RenderedFrameIds paired with vectors of + // WebRenderPipelineInfo. + for (auto update : submittedUpdates) { + auto& holder = update.second; + const auto& info = holder.mInfo->Raw(); + + mReleaseFenceFd = std::move(holder.mFenceFd); + + for (auto& epoch : info.epochs) { + ProcessPipelineRendered(epoch.pipeline_id, epoch.epoch, update.first); + } + for (auto& removedPipeline : info.removed_pipelines) { + ProcessPipelineRemoved(removedPipeline, update.first); + } + } + CheckForTextureHostsNotUsedByGPU(); +} + +void AsyncImagePipelineManager::ProcessPipelineRendered( + const wr::PipelineId& aPipelineId, const wr::Epoch& aEpoch, + wr::RenderedFrameId aRenderedFrameId) { + if (auto entry = mPipelineTexturesHolders.Lookup(wr::AsUint64(aPipelineId))) { + const auto& holder = entry.Data(); + // For TextureHosts that can be released on render submission, using aEpoch + // find the first that we can't release and then release all prior to that. + auto firstSubmittedHostToKeep = std::find_if( + holder->mTextureHostsUntilRenderSubmitted.begin(), + holder->mTextureHostsUntilRenderSubmitted.end(), + [&aEpoch](const auto& entry) { return aEpoch <= entry.mEpoch; }); +#ifdef MOZ_WIDGET_ANDROID + // Set release fence if TextureHost owns AndroidHardwareBuffer. + // The TextureHost handled by mTextureHostsUntilRenderSubmitted instead of + // mTextureHostsUntilRenderCompleted, since android fence could be used + // to wait until its end of usage by GPU. + for (auto it = holder->mTextureHostsUntilRenderSubmitted.begin(); + it != firstSubmittedHostToKeep; ++it) { + const auto& entry = it; + if (entry->mTexture->GetAndroidHardwareBuffer() && + mReleaseFenceFd.IsValid()) { + ipc::FileDescriptor fenceFd = mReleaseFenceFd; + entry->mTexture->SetReleaseFence(std::move(fenceFd)); + } + } +#endif + holder->mTextureHostsUntilRenderSubmitted.erase( + holder->mTextureHostsUntilRenderSubmitted.begin(), + firstSubmittedHostToKeep); + + // For TextureHosts that need to wait until render completed, find the first + // that is later than aEpoch and then move all prior to that to + // mTexturesInUseByGPU paired with aRenderedFrameId. These will be released + // once rendering has completed for aRenderedFrameId. + auto firstCompletedHostToKeep = std::find_if( + holder->mTextureHostsUntilRenderCompleted.begin(), + holder->mTextureHostsUntilRenderCompleted.end(), + [&aEpoch](const auto& entry) { return aEpoch <= entry->mEpoch; }); + if (firstCompletedHostToKeep != + holder->mTextureHostsUntilRenderCompleted.begin()) { + std::vector<UniquePtr<ForwardingTextureHost>> hostsUntilCompleted( + std::make_move_iterator( + holder->mTextureHostsUntilRenderCompleted.begin()), + std::make_move_iterator(firstCompletedHostToKeep)); + mTexturesInUseByGPU.emplace_back(aRenderedFrameId, + std::move(hostsUntilCompleted)); + holder->mTextureHostsUntilRenderCompleted.erase( + holder->mTextureHostsUntilRenderCompleted.begin(), + firstCompletedHostToKeep); + } + + // Using aEpoch, find the first external image that we can't release and + // then release all prior to that. + auto firstImageToKeep = std::find_if( + holder->mExternalImages.begin(), holder->mExternalImages.end(), + [&aEpoch](const auto& entry) { return aEpoch <= entry->mEpoch; }); + holder->mExternalImages.erase(holder->mExternalImages.begin(), + firstImageToKeep); + } +} + +void AsyncImagePipelineManager::ProcessPipelineRemoved( + const wr::RemovedPipeline& aRemovedPipeline, + wr::RenderedFrameId aRenderedFrameId) { + if (mDestroyed) { + return; + } + if (auto entry = mPipelineTexturesHolders.Lookup( + wr::AsUint64(aRemovedPipeline.pipeline_id))) { + const auto& holder = entry.Data(); + if (holder->mDestroyedEpoch.isSome()) { + if (!holder->mTextureHostsUntilRenderCompleted.empty()) { + // Move all TextureHosts that must be held until render completed to + // mTexturesInUseByGPU paired with aRenderedFrameId. + mTexturesInUseByGPU.emplace_back( + aRenderedFrameId, + std::move(holder->mTextureHostsUntilRenderCompleted)); + } + + // Remove Pipeline releasing all remaining TextureHosts and external + // images. + entry.Remove(); + } + + // If mDestroyedEpoch contains nothing it means we reused the same pipeline + // id (probably because we moved the tab to another window). In this case we + // need to keep the holder. + } +} + +void AsyncImagePipelineManager::CheckForTextureHostsNotUsedByGPU() { + uint64_t lastCompletedFrameId = mLastCompletedFrameId; + + // Find first entry after mLastCompletedFrameId and release all prior ones. + auto firstTexturesToKeep = + std::find_if(mTexturesInUseByGPU.begin(), mTexturesInUseByGPU.end(), + [lastCompletedFrameId](const auto& entry) { + return lastCompletedFrameId < entry.first.mId; + }); + mTexturesInUseByGPU.erase(mTexturesInUseByGPU.begin(), firstTexturesToKeep); +} + +wr::Epoch AsyncImagePipelineManager::GetNextImageEpoch() { + mAsyncImageEpoch.mHandle++; + return mAsyncImageEpoch; +} + +AsyncImagePipelineManager::WebRenderPipelineInfoHolder:: + WebRenderPipelineInfoHolder(RefPtr<const wr::WebRenderPipelineInfo>&& aInfo, + ipc::FileDescriptor&& aFenceFd) + : mInfo(aInfo), mFenceFd(aFenceFd) {} + +AsyncImagePipelineManager::WebRenderPipelineInfoHolder:: + ~WebRenderPipelineInfoHolder() = default; + +} // namespace layers +} // namespace mozilla |