зеркало из https://github.com/mozilla/gecko-dev.git
135 строки
4.1 KiB
C++
135 строки
4.1 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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#include "base/basictypes.h"
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#include "mozilla/PresShell.h"
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#include "mozilla/dom/ContentParent.h"
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#include "mozilla/dom/BrowserParent.h"
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#include "mozilla/layers/CompositorBridgeParent.h"
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#include "mozilla/layers/CompositorTypes.h"
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#include "mozilla/layers/LayerTransactionParent.h"
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#include "nsFrameLoader.h"
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#include "nsStyleStructInlines.h"
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#include "nsSubDocumentFrame.h"
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#include "RemoteLayerTreeOwner.h"
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#include "mozilla/gfx/GPUProcessManager.h"
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#include "mozilla/layers/CompositorBridgeChild.h"
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#include "mozilla/layers/WebRenderLayerManager.h"
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#include "mozilla/layers/WebRenderScrollData.h"
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#include "mozilla/webrender/WebRenderAPI.h"
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#include "mozilla/dom/EffectsInfo.h"
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using namespace mozilla::dom;
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using namespace mozilla::gfx;
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using namespace mozilla::layers;
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namespace mozilla {
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namespace layout {
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static already_AddRefed<LayerManager> GetLayerManager(
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BrowserParent* aBrowserParent) {
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if (Element* element = aBrowserParent->GetOwnerElement()) {
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if (RefPtr<LayerManager> lm =
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nsContentUtils::LayerManagerForContent(element)) {
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return lm.forget();
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}
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return nsContentUtils::LayerManagerForDocument(element->OwnerDoc());
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}
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return nullptr;
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}
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RemoteLayerTreeOwner::RemoteLayerTreeOwner()
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: mLayersId{0},
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mBrowserParent(nullptr),
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mLayerManager(nullptr),
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mInitialized(false),
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mLayersConnected(false) {}
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RemoteLayerTreeOwner::~RemoteLayerTreeOwner() = default;
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bool RemoteLayerTreeOwner::Initialize(BrowserParent* aBrowserParent) {
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if (mInitialized || !aBrowserParent) {
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return false;
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}
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mBrowserParent = aBrowserParent;
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RefPtr<LayerManager> lm = GetLayerManager(mBrowserParent);
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PCompositorBridgeChild* compositor =
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lm ? lm->GetCompositorBridgeChild() : nullptr;
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mTabProcessId = mBrowserParent->Manager()->OtherPid();
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// Our remote frame will push layers updates to the compositor,
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// and we'll keep an indirect reference to that tree.
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GPUProcessManager* gpm = GPUProcessManager::Get();
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mLayersConnected = gpm->AllocateAndConnectLayerTreeId(
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compositor, mTabProcessId, &mLayersId, &mCompositorOptions);
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mInitialized = true;
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return true;
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}
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void RemoteLayerTreeOwner::Destroy() {
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if (mLayersId.IsValid()) {
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GPUProcessManager::Get()->UnmapLayerTreeId(mLayersId, mTabProcessId);
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}
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mBrowserParent = nullptr;
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mLayerManager = nullptr;
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}
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void RemoteLayerTreeOwner::EnsureLayersConnected(
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CompositorOptions* aCompositorOptions) {
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RefPtr<LayerManager> lm = GetLayerManager(mBrowserParent);
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if (!lm) {
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return;
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}
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if (!lm->GetCompositorBridgeChild()) {
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return;
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}
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mLayersConnected = lm->GetCompositorBridgeChild()->SendNotifyChildRecreated(
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mLayersId, &mCompositorOptions);
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*aCompositorOptions = mCompositorOptions;
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}
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LayerManager* RemoteLayerTreeOwner::AttachLayerManager() {
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RefPtr<LayerManager> lm;
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if (mBrowserParent) {
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lm = GetLayerManager(mBrowserParent);
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}
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// Perhaps the document containing this frame currently has no presentation?
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if (lm && lm->GetCompositorBridgeChild() && lm != mLayerManager) {
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mLayersConnected =
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lm->GetCompositorBridgeChild()->SendAdoptChild(mLayersId);
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FrameLayerBuilder::InvalidateAllLayers(lm);
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}
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mLayerManager = std::move(lm);
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return mLayerManager;
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}
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void RemoteLayerTreeOwner::OwnerContentChanged() {
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Unused << AttachLayerManager();
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}
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void RemoteLayerTreeOwner::GetTextureFactoryIdentifier(
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TextureFactoryIdentifier* aTextureFactoryIdentifier) const {
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RefPtr<LayerManager> lm =
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mBrowserParent ? GetLayerManager(mBrowserParent) : nullptr;
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// Perhaps the document containing this frame currently has no presentation?
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if (lm) {
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*aTextureFactoryIdentifier = lm->GetTextureFactoryIdentifier();
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} else {
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*aTextureFactoryIdentifier = TextureFactoryIdentifier();
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}
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}
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} // namespace layout
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} // namespace mozilla
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