void
WebRenderBridgeParent::UpdateAPZ()
{
CompositorBridgeParent* cbp = GetRootCompositorBridgeParent();
if (!cbp) {
return;
}
uint64_t rootLayersId = cbp->RootLayerTreeId();
RefPtr<WebRenderBridgeParent> rootWrbp = cbp->GetWebRenderBridgeParent();
if (!rootWrbp) {
return;
}
if (RefPtr<APZCTreeManager> apzc = cbp->GetAPZCTreeManager()) {
apzc->UpdateFocusState(rootLayersId, GetLayersId(),
mScrollData.GetFocusTarget());
apzc->UpdateHitTestingTree(rootLayersId, rootWrbp->GetScrollData(),
mScrollData.IsFirstPaint(), GetLayersId(),
mScrollData.GetPaintSequenceNumber());
}
}
PWebRenderBridgeParent*
CrossProcessCompositorBridgeParent::AllocPWebRenderBridgeParent(const wr::PipelineId& aPipelineId,
const LayoutDeviceIntSize& aSize,
TextureFactoryIdentifier* aTextureFactoryIdentifier,
uint32_t *aIdNamespace)
{
#ifndef MOZ_BUILD_WEBRENDER
// Extra guard since this in the parent process and we don't want a malicious
// child process invoking this codepath before it's ready
MOZ_RELEASE_ASSERT(false);
#endif
uint64_t layersId = wr::AsUint64(aPipelineId);
// Check to see if this child process has access to this layer tree.
if (!LayerTreeOwnerTracker::Get()->IsMapped(layersId, OtherPid())) {
NS_ERROR("Unexpected layers id in AllocPAPZCTreeManagerParent; dropping message...");
return nullptr;
}
MonitorAutoLock lock(*sIndirectLayerTreesLock);
MOZ_ASSERT(sIndirectLayerTrees.find(layersId) != sIndirectLayerTrees.end());
MOZ_ASSERT(sIndirectLayerTrees[layersId].mWrBridge == nullptr);
CompositorBridgeParent* cbp = sIndirectLayerTrees[layersId].mParent;
WebRenderBridgeParent* root = sIndirectLayerTrees[cbp->RootLayerTreeId()].mWrBridge.get();
WebRenderBridgeParent* parent = nullptr;
RefPtr<wr::WebRenderAPI> api = root->GetWebRenderAPI();
RefPtr<WebRenderCompositableHolder> holder = root->CompositableHolder();
parent = new WebRenderBridgeParent(this, aPipelineId, nullptr, root->CompositorScheduler(), Move(api), Move(holder));
parent->AddRef(); // IPDL reference
sIndirectLayerTrees[layersId].mCrossProcessParent = this;
sIndirectLayerTrees[layersId].mWrBridge = parent;
*aTextureFactoryIdentifier = parent->GetTextureFactoryIdentifier();
*aIdNamespace = parent->GetIdNameSpace();
return parent;
}