Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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 */