diff options
Diffstat (limited to 'gfx/layers/wr/WebRenderCommandBuilder.h')
| -rw-r--r-- | gfx/layers/wr/WebRenderCommandBuilder.h | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/gfx/layers/wr/WebRenderCommandBuilder.h b/gfx/layers/wr/WebRenderCommandBuilder.h new file mode 100644 index 0000000000..68c9a4ce63 --- /dev/null +++ b/gfx/layers/wr/WebRenderCommandBuilder.h @@ -0,0 +1,237 @@ +/* -*- 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/. */ + +#ifndef GFX_WEBRENDERCOMMANDBUILDER_H +#define GFX_WEBRENDERCOMMANDBUILDER_H + +#include "mozilla/webrender/WebRenderAPI.h" +#include "mozilla/layers/ClipManager.h" +#include "mozilla/layers/HitTestInfoManager.h" +#include "mozilla/layers/WebRenderMessages.h" +#include "mozilla/layers/WebRenderScrollData.h" +#include "mozilla/layers/WebRenderUserData.h" +#include "mozilla/SVGIntegrationUtils.h" // for WrFiltersHolder +#include "nsDisplayList.h" +#include "nsIFrame.h" +#include "nsTHashSet.h" +#include "DisplayItemCache.h" +#include "ImgDrawResult.h" + +namespace mozilla { + +namespace image { +class WebRenderImageProvider; +} + +namespace layers { + +class ImageClient; +class ImageContainer; +class WebRenderBridgeChild; +class WebRenderCanvasData; +class WebRenderCanvasRendererAsync; +class WebRenderImageData; +class WebRenderFallbackData; +class WebRenderParentCommand; +class WebRenderUserData; + +class WebRenderCommandBuilder final { + typedef nsTHashSet<RefPtr<WebRenderUserData>> WebRenderUserDataRefTable; + typedef nsTHashSet<RefPtr<WebRenderCanvasData>> CanvasDataSet; + + public: + explicit WebRenderCommandBuilder(WebRenderLayerManager* aManager); + + void Destroy(); + + void EmptyTransaction(); + + bool NeedsEmptyTransaction(); + + void BuildWebRenderCommands(wr::DisplayListBuilder& aBuilder, + wr::IpcResourceUpdateQueue& aResourceUpdates, + nsDisplayList* aDisplayList, + nsDisplayListBuilder* aDisplayListBuilder, + WebRenderScrollData& aScrollData, + WrFiltersHolder&& aFilters); + + void PushOverrideForASR(const ActiveScrolledRoot* aASR, + const wr::WrSpatialId& aSpatialId); + void PopOverrideForASR(const ActiveScrolledRoot* aASR); + + Maybe<wr::ImageKey> CreateImageKey( + nsDisplayItem* aItem, ImageContainer* aContainer, + mozilla::wr::DisplayListBuilder& aBuilder, + mozilla::wr::IpcResourceUpdateQueue& aResources, + mozilla::wr::ImageRendering aRendering, const StackingContextHelper& aSc, + gfx::IntSize& aSize, const Maybe<LayoutDeviceRect>& aAsyncImageBounds); + + Maybe<wr::ImageKey> CreateImageProviderKey( + nsDisplayItem* aItem, image::WebRenderImageProvider* aProvider, + image::ImgDrawResult aDrawResult, + mozilla::wr::IpcResourceUpdateQueue& aResources); + + WebRenderUserDataRefTable* GetWebRenderUserDataTable() { + return &mWebRenderUserDatas; + } + + bool PushImage(nsDisplayItem* aItem, ImageContainer* aContainer, + mozilla::wr::DisplayListBuilder& aBuilder, + mozilla::wr::IpcResourceUpdateQueue& aResources, + const StackingContextHelper& aSc, + const LayoutDeviceRect& aRect, const LayoutDeviceRect& aClip); + + bool PushImageProvider(nsDisplayItem* aItem, + image::WebRenderImageProvider* aProvider, + image::ImgDrawResult aDrawResult, + mozilla::wr::DisplayListBuilder& aBuilder, + mozilla::wr::IpcResourceUpdateQueue& aResources, + const LayoutDeviceRect& aRect, + const LayoutDeviceRect& aClip); + + Maybe<wr::ImageMask> BuildWrMaskImage( + nsDisplayMasksAndClipPaths* aMaskItem, wr::DisplayListBuilder& aBuilder, + wr::IpcResourceUpdateQueue& aResources, const StackingContextHelper& aSc, + nsDisplayListBuilder* aDisplayListBuilder, + const LayoutDeviceRect& aBounds); + + bool PushItemAsImage(nsDisplayItem* aItem, wr::DisplayListBuilder& aBuilder, + wr::IpcResourceUpdateQueue& aResources, + const StackingContextHelper& aSc, + nsDisplayListBuilder* aDisplayListBuilder); + + void CreateWebRenderCommandsFromDisplayList( + nsDisplayList* aDisplayList, nsDisplayItem* aWrappingItem, + nsDisplayListBuilder* aDisplayListBuilder, + const StackingContextHelper& aSc, wr::DisplayListBuilder& aBuilder, + wr::IpcResourceUpdateQueue& aResources, bool aNewClipList = true); + + // aWrappingItem has to be non-null. + void DoGroupingForDisplayList(nsDisplayList* aDisplayList, + nsDisplayItem* aWrappingItem, + nsDisplayListBuilder* aDisplayListBuilder, + const StackingContextHelper& aSc, + wr::DisplayListBuilder& aBuilder, + wr::IpcResourceUpdateQueue& aResources); + + already_AddRefed<WebRenderFallbackData> GenerateFallbackData( + nsDisplayItem* aItem, wr::DisplayListBuilder& aBuilder, + wr::IpcResourceUpdateQueue& aResources, const StackingContextHelper& aSc, + nsDisplayListBuilder* aDisplayListBuilder, LayoutDeviceRect& aImageRect); + + void RemoveUnusedAndResetWebRenderUserData(); + void ClearCachedResources(); + + bool ShouldDumpDisplayList(nsDisplayListBuilder* aBuilder); + wr::usize GetBuilderDumpIndex() const { return mBuilderDumpIndex; } + + bool GetContainsSVGGroup() { return mContainsSVGGroup; } + + // Those are data that we kept between transactions. We used to cache some + // data in the layer. But in layers free mode, we don't have layer which + // means we need some other place to cached the data between transaction. + // We store the data in frame's property. + template <class T> + already_AddRefed<T> CreateOrRecycleWebRenderUserData( + nsDisplayItem* aItem, bool* aOutIsRecycled = nullptr) { + MOZ_ASSERT(aItem); + nsIFrame* frame = aItem->Frame(); + if (aOutIsRecycled) { + *aOutIsRecycled = true; + } + + WebRenderUserDataTable* userDataTable = + frame->GetProperty(WebRenderUserDataProperty::Key()); + + if (!userDataTable) { + userDataTable = new WebRenderUserDataTable(); + frame->AddProperty(WebRenderUserDataProperty::Key(), userDataTable); + } + + RefPtr<WebRenderUserData>& data = userDataTable->LookupOrInsertWith( + WebRenderUserDataKey(aItem->GetPerFrameKey(), T::Type()), [&] { + auto data = MakeRefPtr<T>(GetRenderRootStateManager(), aItem); + mWebRenderUserDatas.Insert(data); + if (aOutIsRecycled) { + *aOutIsRecycled = false; + } + return data; + }); + + MOZ_ASSERT(data); + MOZ_ASSERT(data->GetType() == T::Type()); + + // Mark the data as being used. We will remove unused user data in the end + // of EndTransaction. + data->SetUsed(true); + + switch (T::Type()) { + case WebRenderUserData::UserDataType::eCanvas: + mLastCanvasDatas.Insert(data->AsCanvasData()); + break; + default: + break; + } + + RefPtr<T> res = static_cast<T*>(data.get()); + return res.forget(); + } + + WebRenderLayerManager* mManager; + + private: + RenderRootStateManager* GetRenderRootStateManager(); + void CreateWebRenderCommands(nsDisplayItem* aItem, + mozilla::wr::DisplayListBuilder& aBuilder, + mozilla::wr::IpcResourceUpdateQueue& aResources, + const StackingContextHelper& aSc, + nsDisplayListBuilder* aDisplayListBuilder); + + bool ComputeInvalidationForDisplayItem(nsDisplayListBuilder* aBuilder, + const nsPoint& aShift, + nsDisplayItem* aItem); + bool ComputeInvalidationForDisplayList(nsDisplayListBuilder* aBuilder, + const nsPoint& aShift, + nsDisplayList* aList); + + ClipManager mClipManager; + HitTestInfoManager mHitTestInfoManager; + + // We use this as a temporary data structure while building the mScrollData + // inside a layers-free transaction. + std::vector<WebRenderLayerScrollData> mLayerScrollData; + // We use this as a temporary data structure to track the current display + // item's ASR as we recurse in CreateWebRenderCommandsFromDisplayList. We + // need this so that WebRenderLayerScrollData items that deeper in the + // tree don't duplicate scroll metadata that their ancestors already have. + std::vector<const ActiveScrolledRoot*> mAsrStack; + // A similar stack to track the deferred transform that we decided to emit + // most recently. + std::vector<nsDisplayTransform*> mDeferredTransformStack; + const ActiveScrolledRoot* mLastAsr; + + WebRenderUserDataRefTable mWebRenderUserDatas; + + // Store of WebRenderCanvasData objects for use in empty transactions + CanvasDataSet mLastCanvasDatas; + + wr::usize mBuilderDumpIndex; + wr::usize mDumpIndent; + + public: + // Whether consecutive inactive display items should be grouped into one + // blob image. + bool mDoGrouping; + + // True if the most recently build display list contained an svg that + // we did grouping for. + bool mContainsSVGGroup; +}; + +} // namespace layers +} // namespace mozilla + +#endif /* GFX_WEBRENDERCOMMANDBUILDER_H */ |