зеркало из https://github.com/mozilla/gecko-dev.git
284 строки
11 KiB
C++
284 строки
11 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_GFX_WEBRENDERCOMPOSITABLE_HOLDER_H
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#define MOZILLA_GFX_WEBRENDERCOMPOSITABLE_HOLDER_H
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#include <queue>
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#include "CompositableHost.h"
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#include "mozilla/gfx/Point.h"
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#include "mozilla/layers/TextureHost.h"
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#include "mozilla/layers/WebRenderTextureHostWrapper.h"
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#include "mozilla/Maybe.h"
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#include "mozilla/webrender/WebRenderAPI.h"
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#include "mozilla/webrender/WebRenderTypes.h"
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#include "nsClassHashtable.h"
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namespace mozilla {
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namespace wr {
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class DisplayListBuilder;
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class WebRenderAPI;
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class WebRenderPipelineInfo;
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} // namespace wr
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namespace layers {
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class CompositableHost;
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class CompositorVsyncScheduler;
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class WebRenderImageHost;
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class WebRenderTextureHost;
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class WebRenderTextureHostWrapper;
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class AsyncImagePipelineManager final {
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(AsyncImagePipelineManager)
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explicit AsyncImagePipelineManager(
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nsTArray<RefPtr<wr::WebRenderAPI>>&& aApis);
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protected:
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~AsyncImagePipelineManager();
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public:
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void Destroy();
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void AddPipeline(const wr::PipelineId& aPipelineId,
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WebRenderBridgeParent* aWrBridge);
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void RemovePipeline(const wr::PipelineId& aPipelineId,
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const wr::Epoch& aEpoch);
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WebRenderBridgeParent* GetWrBridge(const wr::PipelineId& aPipelineId);
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void HoldExternalImage(const wr::PipelineId& aPipelineId,
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const wr::Epoch& aEpoch, TextureHost* aTexture);
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void HoldExternalImage(const wr::PipelineId& aPipelineId,
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const wr::Epoch& aEpoch,
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WebRenderTextureHostWrapper* aWrTextureWrapper);
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void HoldExternalImage(const wr::PipelineId& aPipelineId,
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const wr::Epoch& aEpoch,
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const wr::ExternalImageId& aImageId);
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// This is called from the Renderer thread to notify this class about the
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// pipelines in the most recently completed render. A copy of the update
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// information is put into mUpdatesQueue.
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void NotifyPipelinesUpdated(RefPtr<wr::WebRenderPipelineInfo> aInfo,
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bool aRender);
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// This is run on the compositor thread to process mUpdatesQueue. We make
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// this a public entry point because we need to invoke it from other places.
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void ProcessPipelineUpdates();
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TimeStamp GetCompositionTime() const { return mCompositionTime; }
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void SetCompositionTime(TimeStamp aTimeStamp) {
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mCompositionTime = aTimeStamp;
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if (!mCompositionTime.IsNull() && !mCompositeUntilTime.IsNull() &&
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mCompositionTime >= mCompositeUntilTime) {
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mCompositeUntilTime = TimeStamp();
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}
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}
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void CompositeUntil(TimeStamp aTimeStamp) {
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if (mCompositeUntilTime.IsNull() || mCompositeUntilTime < aTimeStamp) {
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mCompositeUntilTime = aTimeStamp;
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}
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}
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TimeStamp GetCompositeUntilTime() const { return mCompositeUntilTime; }
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void AddAsyncImagePipeline(const wr::PipelineId& aPipelineId,
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WebRenderImageHost* aImageHost,
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wr::RenderRoot aRenderRoot);
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void RemoveAsyncImagePipeline(const wr::PipelineId& aPipelineId,
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wr::TransactionBuilder& aTxn);
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void UpdateAsyncImagePipeline(const wr::PipelineId& aPipelineId,
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const LayoutDeviceRect& aScBounds,
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const gfx::Matrix4x4& aScTransform,
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const gfx::MaybeIntSize& aScaleToSize,
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const wr::ImageRendering& aFilter,
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const wr::MixBlendMode& aMixBlendMode);
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void ApplyAsyncImagesOfImageBridge(
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wr::RenderRootArray<Maybe<wr::TransactionBuilder>>& aSceneBuilderTxns,
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wr::RenderRootArray<Maybe<wr::TransactionBuilder>>& aFastTxns);
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void ApplyAsyncImageForPipeline(const wr::PipelineId& aPipelineId,
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wr::TransactionBuilder& aTxn,
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wr::TransactionBuilder& aTxnForImageBridge,
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wr::RenderRoot aRenderRoot);
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void SetEmptyDisplayList(const wr::PipelineId& aPipelineId,
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wr::TransactionBuilder& aTxn,
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wr::TransactionBuilder& aTxnForImageBridge);
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void AppendImageCompositeNotification(
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const ImageCompositeNotificationInfo& aNotification) {
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mImageCompositeNotifications.AppendElement(aNotification);
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}
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void FlushImageNotifications(
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nsTArray<ImageCompositeNotificationInfo>* aNotifications) {
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aNotifications->AppendElements(std::move(mImageCompositeNotifications));
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}
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void SetWillGenerateFrameAllRenderRoots();
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void SetWillGenerateFrame(wr::RenderRoot aRenderRoot);
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bool GetAndResetWillGenerateFrame(wr::RenderRoot aRenderRoot);
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wr::ExternalImageId GetNextExternalImageId();
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private:
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void ProcessPipelineRendered(const wr::PipelineId& aPipelineId,
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const wr::Epoch& aEpoch,
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const uint64_t aUpdatesCount);
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void ProcessPipelineRemoved(const wr::RemovedPipeline& aRemovedPipeline,
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const uint64_t aUpdatesCount);
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wr::Epoch GetNextImageEpoch();
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uint32_t GetNextResourceId() { return ++mResourceId; }
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wr::IdNamespace GetNamespace() { return mIdNamespace; }
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wr::ImageKey GenerateImageKey() {
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wr::ImageKey key;
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key.mNamespace = GetNamespace();
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key.mHandle = GetNextResourceId();
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return key;
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}
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struct ForwardingTextureHost {
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ForwardingTextureHost(const wr::Epoch& aEpoch, TextureHost* aTexture)
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: mEpoch(aEpoch), mTexture(aTexture) {}
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wr::Epoch mEpoch;
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CompositableTextureHostRef mTexture;
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};
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struct ForwardingTextureHostWrapper {
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ForwardingTextureHostWrapper(const wr::Epoch& aEpoch,
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WebRenderTextureHostWrapper* aWrTextureWrapper)
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: mEpoch(aEpoch), mWrTextureWrapper(aWrTextureWrapper) {}
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wr::Epoch mEpoch;
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RefPtr<WebRenderTextureHostWrapper> mWrTextureWrapper;
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};
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struct ForwardingExternalImage {
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ForwardingExternalImage(const wr::Epoch& aEpoch,
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const wr::ExternalImageId& aImageId)
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: mEpoch(aEpoch), mImageId(aImageId) {}
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~ForwardingExternalImage();
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wr::Epoch mEpoch;
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wr::ExternalImageId mImageId;
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};
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struct PipelineTexturesHolder {
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// Holds forwarding WebRenderTextureHosts.
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std::queue<ForwardingTextureHost> mTextureHosts;
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std::queue<ForwardingTextureHostWrapper> mTextureHostWrappers;
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std::queue<UniquePtr<ForwardingExternalImage>> mExternalImages;
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Maybe<wr::Epoch> mDestroyedEpoch;
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WebRenderBridgeParent* MOZ_NON_OWNING_REF mWrBridge = nullptr;
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};
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struct AsyncImagePipeline {
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AsyncImagePipeline();
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void Update(const LayoutDeviceRect& aScBounds,
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const gfx::Matrix4x4& aScTransform,
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const gfx::MaybeIntSize& aScaleToSize,
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const wr::ImageRendering& aFilter,
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const wr::MixBlendMode& aMixBlendMode) {
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mIsChanged |= !mScBounds.IsEqualEdges(aScBounds) ||
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mScTransform != aScTransform ||
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mScaleToSize != aScaleToSize || mFilter != aFilter ||
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mMixBlendMode != aMixBlendMode;
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mScBounds = aScBounds;
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mScTransform = aScTransform;
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mScaleToSize = aScaleToSize;
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mFilter = aFilter;
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mMixBlendMode = aMixBlendMode;
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}
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bool mInitialised;
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wr::RenderRoot mRenderRoot;
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bool mIsChanged;
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bool mUseExternalImage;
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LayoutDeviceRect mScBounds;
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gfx::Matrix4x4 mScTransform;
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gfx::MaybeIntSize mScaleToSize;
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wr::ImageRendering mFilter;
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wr::MixBlendMode mMixBlendMode;
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RefPtr<WebRenderImageHost> mImageHost;
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CompositableTextureHostRef mCurrentTexture;
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RefPtr<WebRenderTextureHostWrapper> mWrTextureWrapper;
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nsTArray<wr::ImageKey> mKeys;
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};
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void ApplyAsyncImageForPipeline(const wr::Epoch& aEpoch,
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const wr::PipelineId& aPipelineId,
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AsyncImagePipeline* aPipeline,
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wr::TransactionBuilder& aSceneBuilderTxn,
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wr::TransactionBuilder& aMaybeFastTxn);
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Maybe<TextureHost::ResourceUpdateOp> UpdateImageKeys(
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const wr::Epoch& aEpoch, const wr::PipelineId& aPipelineId,
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AsyncImagePipeline* aPipeline, nsTArray<wr::ImageKey>& aKeys,
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wr::TransactionBuilder& aSceneBuilderTxn,
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wr::TransactionBuilder& aMaybeFastTxn);
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Maybe<TextureHost::ResourceUpdateOp> UpdateWithoutExternalImage(
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TextureHost* aTexture, wr::ImageKey aKey, TextureHost::ResourceUpdateOp,
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wr::TransactionBuilder& aTxn);
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// If texture is direct binding texture, keep it until it is not used by GPU.
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void HoldUntilNotUsedByGPU(const CompositableTextureHostRef& aTextureHost,
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uint64_t aUpdatesCount);
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void CheckForTextureHostsNotUsedByGPU();
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nsTArray<RefPtr<wr::WebRenderAPI>> mApis;
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const wr::IdNamespace mIdNamespace;
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const bool mUseTripleBuffering;
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uint32_t mResourceId;
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nsClassHashtable<nsUint64HashKey, PipelineTexturesHolder>
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mPipelineTexturesHolders;
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nsClassHashtable<nsUint64HashKey, AsyncImagePipeline> mAsyncImagePipelines;
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wr::Epoch mAsyncImageEpoch;
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wr::RenderRootArray<bool> mWillGenerateFrame;
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bool mDestroyed;
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// Render time for the current composition.
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TimeStamp mCompositionTime;
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// When nonnull, during rendering, some compositable indicated that it will
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// change its rendering at this time. In order not to miss it, we composite
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// on every vsync until this time occurs (this is the latest such time).
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TimeStamp mCompositeUntilTime;
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nsTArray<ImageCompositeNotificationInfo> mImageCompositeNotifications;
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// The lock that protects mUpdatesQueue
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Mutex mUpdatesLock;
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// Used for checking if PipelineUpdates could be processed.
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Atomic<uint64_t> mUpdatesCount;
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struct PipelineUpdates {
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PipelineUpdates(RefPtr<wr::WebRenderPipelineInfo> aPipelineInfo,
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const uint64_t aUpdatesCount, const bool aRendered);
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bool NeedsToWait(const uint64_t aUpdatesCount) {
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MOZ_ASSERT(mUpdatesCount <= aUpdatesCount);
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if (mUpdatesCount == aUpdatesCount && !mRendered) {
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// RenderTextureHosts related to this might be still used by GPU.
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return true;
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}
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return false;
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}
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RefPtr<wr::WebRenderPipelineInfo> mPipelineInfo;
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const uint64_t mUpdatesCount;
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const bool mRendered;
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};
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std::queue<UniquePtr<PipelineUpdates>> mUpdatesQueues;
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// Queue to store TextureHosts that might still be used by GPU.
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std::queue<std::pair<uint64_t, CompositableTextureHostRef>>
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mTexturesInUseByGPU;
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};
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} // namespace layers
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} // namespace mozilla
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#endif /* MOZILLA_GFX_WEBRENDERCOMPOSITABLE_HOLDER_H */
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