зеркало из https://github.com/mozilla/gecko-dev.git
8168ef50b5
DisplayItemBuilder now has methods:
```
void StartGroup(nsPaintedDisplayItem* aItem);
void CancelGroup();
void FinishGroup();
bool ReuseItem(nsPaintedDisplayItem* aItem);
```
WebRender display items previously created between calls to StartGroup() and FinishGroup() will be reused by a call to ReuseItem(),
which will push DisplayItem::ReuseItem(key) to WR display list, if the Gecko display item has been retained and reused.
Calling CancelGroup() will discard the display items that have been pushed after calling StartGroup().
For example, inside nsDisplayBackgroundColor::CreateWebRenderCommands():
```
aBuilder.StartGroup(this);
aBuilder.PushRect(r, r, !BackfaceIsHidden(),
wr::ToColorF(ToDeviceColor(mColor)));
aBuilder.FinishGroup();
```
Differential Revision: https://phabricator.services.mozilla.com/D65356
--HG--
extra : moz-landing-system : lando
|
||
|---|---|---|
| .. | ||
| AsyncImagePipelineManager.cpp | ||
| AsyncImagePipelineManager.h | ||
| ClipManager.cpp | ||
| ClipManager.h | ||
| DisplayItemCache.cpp | ||
| DisplayItemCache.h | ||
| IpcResourceUpdateQueue.cpp | ||
| IpcResourceUpdateQueue.h | ||
| RenderRootBoundary.h | ||
| RenderRootStateManager.cpp | ||
| RenderRootStateManager.h | ||
| RenderRootTypes.cpp | ||
| RenderRootTypes.h | ||
| StackingContextHelper.cpp | ||
| StackingContextHelper.h | ||
| WebRenderBridgeChild.cpp | ||
| WebRenderBridgeChild.h | ||
| WebRenderBridgeParent.cpp | ||
| WebRenderBridgeParent.h | ||
| WebRenderCanvasRenderer.cpp | ||
| WebRenderCanvasRenderer.h | ||
| WebRenderCommandBuilder.cpp | ||
| WebRenderCommandBuilder.h | ||
| WebRenderCompositionRecorder.cpp | ||
| WebRenderCompositionRecorder.h | ||
| WebRenderDrawEventRecorder.cpp | ||
| WebRenderDrawEventRecorder.h | ||
| WebRenderImageHost.cpp | ||
| WebRenderImageHost.h | ||
| WebRenderLayerManager.cpp | ||
| WebRenderLayerManager.h | ||
| WebRenderLayersLogging.cpp | ||
| WebRenderLayersLogging.h | ||
| WebRenderMessageUtils.h | ||
| WebRenderScrollData.cpp | ||
| WebRenderScrollData.h | ||
| WebRenderScrollDataWrapper.h | ||
| WebRenderTextureHost.cpp | ||
| WebRenderTextureHost.h | ||
| WebRenderUserData.cpp | ||
| WebRenderUserData.h | ||