mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
81f0522af9
This annotates fixed layers with the margins that have been applied from nsIPresShell->GetContentDocumentFixedPositionMargins. Using SyncViewportInfo in CompositorParent, this allows for async fixed position margin setting.
727 lines
21 KiB
C++
727 lines
21 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=8 et :
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*/
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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 <set>
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#include <vector>
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#include "gfxSharedImageSurface.h"
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#include "gfxPlatform.h"
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#include "AutoOpenSurface.h"
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#include "mozilla/ipc/SharedMemorySysV.h"
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#include "mozilla/layers/PLayerChild.h"
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#include "mozilla/layers/PLayersChild.h"
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#include "mozilla/layers/PLayersParent.h"
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#include "ShadowLayers.h"
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#include "ShadowLayerChild.h"
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#include "gfxipc/ShadowLayerUtils.h"
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#include "RenderTrace.h"
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#include "sampler.h"
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#include "nsXULAppAPI.h"
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using namespace mozilla::ipc;
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using namespace mozilla::gl;
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using namespace mozilla::dom;
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namespace mozilla {
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namespace layers {
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typedef nsTArray<SurfaceDescriptor> BufferArray;
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typedef std::vector<Edit> EditVector;
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typedef std::set<ShadowableLayer*> ShadowableLayerSet;
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class Transaction
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{
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public:
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Transaction()
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: mTargetRotation(ROTATION_0)
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, mSwapRequired(false)
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, mOpen(false)
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, mRotationChanged(false)
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{}
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void Begin(const nsIntRect& aTargetBounds, ScreenRotation aRotation,
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const nsIntRect& aClientBounds, ScreenOrientation aOrientation)
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{
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mOpen = true;
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mTargetBounds = aTargetBounds;
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if (aRotation != mTargetRotation) {
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// the first time this is called, mRotationChanged will be false if
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// aRotation is 0, but we should be OK because for the first transaction
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// we should only compose if it is non-empty. See the caller(s) of
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// RotationChanged.
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mRotationChanged = true;
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}
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mTargetRotation = aRotation;
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mClientBounds = aClientBounds;
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mTargetOrientation = aOrientation;
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}
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void AddEdit(const Edit& aEdit)
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{
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NS_ABORT_IF_FALSE(!Finished(), "forgot BeginTransaction?");
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mCset.push_back(aEdit);
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}
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void AddPaint(const Edit& aPaint)
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{
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AddNoSwapPaint(aPaint);
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mSwapRequired = true;
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}
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void AddNoSwapPaint(const Edit& aPaint)
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{
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NS_ABORT_IF_FALSE(!Finished(), "forgot BeginTransaction?");
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mPaints.push_back(aPaint);
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}
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void AddMutant(ShadowableLayer* aLayer)
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{
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NS_ABORT_IF_FALSE(!Finished(), "forgot BeginTransaction?");
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mMutants.insert(aLayer);
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}
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void AddBufferToDestroy(gfxSharedImageSurface* aBuffer)
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{
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return AddBufferToDestroy(aBuffer->GetShmem());
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}
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void AddBufferToDestroy(const SurfaceDescriptor& aBuffer)
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{
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NS_ABORT_IF_FALSE(!Finished(), "forgot BeginTransaction?");
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mDyingBuffers.AppendElement(aBuffer);
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}
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void End()
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{
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mCset.clear();
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mPaints.clear();
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mDyingBuffers.Clear();
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mMutants.clear();
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mOpen = false;
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mSwapRequired = false;
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mRotationChanged = false;
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}
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bool Empty() const {
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return mCset.empty() && mPaints.empty() && mMutants.empty();
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}
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bool RotationChanged() const {
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return mRotationChanged;
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}
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bool Finished() const { return !mOpen && Empty(); }
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EditVector mCset;
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EditVector mPaints;
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BufferArray mDyingBuffers;
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ShadowableLayerSet mMutants;
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nsIntRect mTargetBounds;
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ScreenRotation mTargetRotation;
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nsIntRect mClientBounds;
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ScreenOrientation mTargetOrientation;
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bool mSwapRequired;
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private:
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bool mOpen;
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bool mRotationChanged;
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// disabled
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Transaction(const Transaction&);
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Transaction& operator=(const Transaction&);
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};
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struct AutoTxnEnd {
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AutoTxnEnd(Transaction* aTxn) : mTxn(aTxn) {}
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~AutoTxnEnd() { mTxn->End(); }
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Transaction* mTxn;
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};
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ShadowLayerForwarder::ShadowLayerForwarder()
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: mShadowManager(NULL)
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, mMaxTextureSize(0)
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, mParentBackend(mozilla::layers::LAYERS_NONE)
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, mIsFirstPaint(false)
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{
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mTxn = new Transaction();
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}
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ShadowLayerForwarder::~ShadowLayerForwarder()
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{
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NS_ABORT_IF_FALSE(mTxn->Finished(), "unfinished transaction?");
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delete mTxn;
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}
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void
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ShadowLayerForwarder::BeginTransaction(const nsIntRect& aTargetBounds,
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ScreenRotation aRotation,
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const nsIntRect& aClientBounds,
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ScreenOrientation aOrientation)
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{
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NS_ABORT_IF_FALSE(HasShadowManager(), "no manager to forward to");
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NS_ABORT_IF_FALSE(mTxn->Finished(), "uncommitted txn?");
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mTxn->Begin(aTargetBounds, aRotation, aClientBounds, aOrientation);
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}
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static PLayerChild*
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Shadow(ShadowableLayer* aLayer)
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{
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return aLayer->GetShadow();
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}
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template<typename OpCreateT>
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static void
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CreatedLayer(Transaction* aTxn, ShadowableLayer* aLayer)
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{
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aTxn->AddEdit(OpCreateT(NULL, Shadow(aLayer)));
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}
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void
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ShadowLayerForwarder::CreatedThebesLayer(ShadowableLayer* aThebes)
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{
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CreatedLayer<OpCreateThebesLayer>(mTxn, aThebes);
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}
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void
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ShadowLayerForwarder::CreatedContainerLayer(ShadowableLayer* aContainer)
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{
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CreatedLayer<OpCreateContainerLayer>(mTxn, aContainer);
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}
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void
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ShadowLayerForwarder::CreatedImageLayer(ShadowableLayer* aImage)
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{
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CreatedLayer<OpCreateImageLayer>(mTxn, aImage);
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}
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void
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ShadowLayerForwarder::CreatedColorLayer(ShadowableLayer* aColor)
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{
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CreatedLayer<OpCreateColorLayer>(mTxn, aColor);
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}
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void
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ShadowLayerForwarder::CreatedCanvasLayer(ShadowableLayer* aCanvas)
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{
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CreatedLayer<OpCreateCanvasLayer>(mTxn, aCanvas);
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}
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void
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ShadowLayerForwarder::CreatedRefLayer(ShadowableLayer* aRef)
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{
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CreatedLayer<OpCreateRefLayer>(mTxn, aRef);
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}
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void
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ShadowLayerForwarder::DestroyedThebesBuffer(ShadowableLayer* aThebes,
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const SurfaceDescriptor& aBackBufferToDestroy)
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{
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mTxn->AddBufferToDestroy(aBackBufferToDestroy);
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}
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void
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ShadowLayerForwarder::Mutated(ShadowableLayer* aMutant)
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{
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mTxn->AddMutant(aMutant);
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}
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void
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ShadowLayerForwarder::SetRoot(ShadowableLayer* aRoot)
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{
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mTxn->AddEdit(OpSetRoot(NULL, Shadow(aRoot)));
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}
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void
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ShadowLayerForwarder::InsertAfter(ShadowableLayer* aContainer,
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ShadowableLayer* aChild,
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ShadowableLayer* aAfter)
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{
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if (aAfter)
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mTxn->AddEdit(OpInsertAfter(NULL, Shadow(aContainer),
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NULL, Shadow(aChild),
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NULL, Shadow(aAfter)));
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else
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mTxn->AddEdit(OpAppendChild(NULL, Shadow(aContainer),
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NULL, Shadow(aChild)));
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}
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void
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ShadowLayerForwarder::RemoveChild(ShadowableLayer* aContainer,
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ShadowableLayer* aChild)
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{
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mTxn->AddEdit(OpRemoveChild(NULL, Shadow(aContainer),
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NULL, Shadow(aChild)));
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}
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void
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ShadowLayerForwarder::RepositionChild(ShadowableLayer* aContainer,
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ShadowableLayer* aChild,
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ShadowableLayer* aAfter)
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{
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if (aAfter)
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mTxn->AddEdit(OpRepositionChild(NULL, Shadow(aContainer),
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NULL, Shadow(aChild),
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NULL, Shadow(aAfter)));
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else
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mTxn->AddEdit(OpRaiseToTopChild(NULL, Shadow(aContainer),
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NULL, Shadow(aChild)));
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}
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void
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ShadowLayerForwarder::PaintedThebesBuffer(ShadowableLayer* aThebes,
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const nsIntRegion& aUpdatedRegion,
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const nsIntRect& aBufferRect,
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const nsIntPoint& aBufferRotation,
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const SurfaceDescriptor& aNewFrontBuffer)
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{
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mTxn->AddPaint(OpPaintThebesBuffer(NULL, Shadow(aThebes),
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ThebesBuffer(aNewFrontBuffer,
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aBufferRect,
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aBufferRotation),
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aUpdatedRegion));
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}
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void
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ShadowLayerForwarder::PaintedTiledLayerBuffer(ShadowableLayer* aLayer,
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BasicTiledLayerBuffer* aTiledLayerBuffer)
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{
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if (XRE_GetProcessType() != GeckoProcessType_Default)
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NS_RUNTIMEABORT("PaintedTiledLayerBuffer must be made IPC safe (not share pointers)");
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mTxn->AddNoSwapPaint(OpPaintTiledLayerBuffer(NULL, Shadow(aLayer),
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uintptr_t(aTiledLayerBuffer)));
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}
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void
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ShadowLayerForwarder::PaintedImage(ShadowableLayer* aImage,
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const SharedImage& aNewFrontImage)
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{
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mTxn->AddPaint(OpPaintImage(NULL, Shadow(aImage),
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aNewFrontImage));
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}
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void
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ShadowLayerForwarder::PaintedCanvas(ShadowableLayer* aCanvas,
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bool aNeedYFlip,
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const SurfaceDescriptor& aNewFrontSurface)
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{
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mTxn->AddPaint(OpPaintCanvas(NULL, Shadow(aCanvas),
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aNewFrontSurface,
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aNeedYFlip));
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}
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bool
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ShadowLayerForwarder::EndTransaction(InfallibleTArray<EditReply>* aReplies)
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{
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SAMPLE_LABEL("ShadowLayerForwarder", "EndTranscation");
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RenderTraceScope rendertrace("Foward Transaction", "000091");
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NS_ABORT_IF_FALSE(HasShadowManager(), "no manager to forward to");
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NS_ABORT_IF_FALSE(!mTxn->Finished(), "forgot BeginTransaction?");
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AutoTxnEnd _(mTxn);
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if (mTxn->Empty() && !mTxn->RotationChanged()) {
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MOZ_LAYERS_LOG(("[LayersForwarder] 0-length cset (?) and no rotation event, skipping Update()"));
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return true;
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}
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MOZ_LAYERS_LOG(("[LayersForwarder] destroying buffers..."));
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for (uint32_t i = 0; i < mTxn->mDyingBuffers.Length(); ++i) {
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DestroySharedSurface(&mTxn->mDyingBuffers[i]);
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}
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MOZ_LAYERS_LOG(("[LayersForwarder] building transaction..."));
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// We purposely add attribute-change ops to the final changeset
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// before we add paint ops. This allows layers to record the
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// attribute changes before new pixels arrive, which can be useful
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// for setting up back/front buffers.
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RenderTraceScope rendertrace2("Foward Transaction", "000092");
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for (ShadowableLayerSet::const_iterator it = mTxn->mMutants.begin();
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it != mTxn->mMutants.end(); ++it) {
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ShadowableLayer* shadow = *it;
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Layer* mutant = shadow->AsLayer();
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NS_ABORT_IF_FALSE(!!mutant, "unshadowable layer?");
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LayerAttributes attrs;
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CommonLayerAttributes& common = attrs.common();
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common.visibleRegion() = mutant->GetVisibleRegion();
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common.postXScale() = mutant->GetPostXScale();
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common.postYScale() = mutant->GetPostYScale();
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common.transform() = mutant->GetBaseTransform();
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common.contentFlags() = mutant->GetContentFlags();
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common.opacity() = mutant->GetOpacity();
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common.useClipRect() = !!mutant->GetClipRect();
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common.clipRect() = (common.useClipRect() ?
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*mutant->GetClipRect() : nsIntRect());
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common.isFixedPosition() = mutant->GetIsFixedPosition();
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common.fixedPositionAnchor() = mutant->GetFixedPositionAnchor();
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common.fixedPositionMargin() = mutant->GetFixedPositionMargins();
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if (Layer* maskLayer = mutant->GetMaskLayer()) {
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common.maskLayerChild() = Shadow(maskLayer->AsShadowableLayer());
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} else {
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common.maskLayerChild() = NULL;
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}
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common.maskLayerParent() = NULL;
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common.animations() = mutant->GetAnimations();
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attrs.specific() = null_t();
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mutant->FillSpecificAttributes(attrs.specific());
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mTxn->AddEdit(OpSetLayerAttributes(NULL, Shadow(shadow), attrs));
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}
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AutoInfallibleTArray<Edit, 10> cset;
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size_t nCsets = mTxn->mCset.size() + mTxn->mPaints.size();
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NS_ABORT_IF_FALSE(nCsets > 0, "should have bailed by now");
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cset.SetCapacity(nCsets);
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if (!mTxn->mCset.empty()) {
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cset.AppendElements(&mTxn->mCset.front(), mTxn->mCset.size());
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}
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// Paints after non-paint ops, including attribute changes. See
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// above.
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if (!mTxn->mPaints.empty()) {
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cset.AppendElements(&mTxn->mPaints.front(), mTxn->mPaints.size());
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}
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TargetConfig targetConfig(mTxn->mTargetBounds, mTxn->mTargetRotation, mTxn->mClientBounds, mTxn->mTargetOrientation);
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MOZ_LAYERS_LOG(("[LayersForwarder] syncing before send..."));
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PlatformSyncBeforeUpdate();
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if (mTxn->mSwapRequired) {
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MOZ_LAYERS_LOG(("[LayersForwarder] sending transaction..."));
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RenderTraceScope rendertrace3("Forward Transaction", "000093");
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if (!mShadowManager->SendUpdate(cset, targetConfig, mIsFirstPaint,
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aReplies)) {
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MOZ_LAYERS_LOG(("[LayersForwarder] WARNING: sending transaction failed!"));
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return false;
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}
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} else {
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// If we don't require a swap we can call SendUpdateNoSwap which
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// assumes that aReplies is empty (DEBUG assertion)
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MOZ_LAYERS_LOG(("[LayersForwarder] sending no swap transaction..."));
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RenderTraceScope rendertrace3("Forward NoSwap Transaction", "000093");
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if (!mShadowManager->SendUpdateNoSwap(cset, targetConfig, mIsFirstPaint)) {
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MOZ_LAYERS_LOG(("[LayersForwarder] WARNING: sending transaction failed!"));
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return false;
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}
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}
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mIsFirstPaint = false;
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MOZ_LAYERS_LOG(("[LayersForwarder] ... done"));
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return true;
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}
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SharedMemory::SharedMemoryType
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OptimalShmemType()
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{
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#if defined(MOZ_PLATFORM_MAEMO) && defined(MOZ_HAVE_SHAREDMEMORYSYSV)
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// Use SysV memory because maemo5 on the N900 only allots 64MB to
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// /dev/shm, even though it has 1GB(!!) of system memory. Sys V shm
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// is allocated from a different pool. We don't want an arbitrary
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// cap that's much much lower than available memory on the memory we
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// use for layers.
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return SharedMemory::TYPE_SYSV;
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#else
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return SharedMemory::TYPE_BASIC;
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#endif
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}
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bool
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ShadowLayerForwarder::AllocBuffer(const gfxIntSize& aSize,
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gfxASurface::gfxContentType aContent,
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gfxSharedImageSurface** aBuffer)
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{
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NS_ABORT_IF_FALSE(HasShadowManager(), "no manager to forward to");
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SharedMemory::SharedMemoryType shmemType = OptimalShmemType();
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gfxASurface::gfxImageFormat format = gfxPlatform::GetPlatform()->OptimalFormatForContent(aContent);
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nsRefPtr<gfxSharedImageSurface> back =
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gfxSharedImageSurface::CreateUnsafe(mShadowManager, aSize, format, shmemType);
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if (!back)
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return false;
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*aBuffer = nullptr;
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back.swap(*aBuffer);
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return true;
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}
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bool
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ShadowLayerForwarder::AllocBuffer(const gfxIntSize& aSize,
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gfxASurface::gfxContentType aContent,
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SurfaceDescriptor* aBuffer)
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{
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return AllocBufferWithCaps(aSize, aContent, DEFAULT_BUFFER_CAPS, aBuffer);
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}
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bool
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ShadowLayerForwarder::AllocBufferWithCaps(const gfxIntSize& aSize,
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gfxASurface::gfxContentType aContent,
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uint32_t aCaps,
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SurfaceDescriptor* aBuffer)
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{
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bool tryPlatformSurface = true;
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#ifdef DEBUG
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tryPlatformSurface = !PR_GetEnv("MOZ_LAYERS_FORCE_SHMEM_SURFACES");
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#endif
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if (tryPlatformSurface &&
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PlatformAllocBuffer(aSize, aContent, aCaps, aBuffer)) {
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return true;
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}
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nsRefPtr<gfxSharedImageSurface> buffer;
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if (!AllocBuffer(aSize, aContent,
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getter_AddRefs(buffer)))
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return false;
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*aBuffer = buffer->GetShmem();
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return true;
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}
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/*static*/ already_AddRefed<gfxASurface>
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ShadowLayerForwarder::OpenDescriptor(OpenMode aMode,
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const SurfaceDescriptor& aSurface)
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{
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nsRefPtr<gfxASurface> surf = PlatformOpenDescriptor(aMode, aSurface);
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if (surf) {
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return surf.forget();
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}
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switch (aSurface.type()) {
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case SurfaceDescriptor::TShmem: {
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surf = gfxSharedImageSurface::Open(aSurface.get_Shmem());
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return surf.forget();
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}
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default:
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NS_RUNTIMEABORT("unexpected SurfaceDescriptor type!");
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return nullptr;
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}
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}
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/*static*/ gfxContentType
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ShadowLayerForwarder::GetDescriptorSurfaceContentType(
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const SurfaceDescriptor& aDescriptor, OpenMode aMode,
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gfxASurface** aSurface)
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{
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gfxContentType content;
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if (PlatformGetDescriptorSurfaceContentType(aDescriptor, aMode,
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&content, aSurface)) {
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return content;
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}
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nsRefPtr<gfxASurface> surface = OpenDescriptor(aMode, aDescriptor);
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content = surface->GetContentType();
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*aSurface = surface.forget().get();
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return content;
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}
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/*static*/ gfxIntSize
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ShadowLayerForwarder::GetDescriptorSurfaceSize(
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const SurfaceDescriptor& aDescriptor, OpenMode aMode,
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gfxASurface** aSurface)
|
|
{
|
|
gfxIntSize size;
|
|
if (PlatformGetDescriptorSurfaceSize(aDescriptor, aMode, &size, aSurface)) {
|
|
return size;
|
|
}
|
|
|
|
nsRefPtr<gfxASurface> surface = OpenDescriptor(aMode, aDescriptor);
|
|
size = surface->GetSize();
|
|
*aSurface = surface.forget().get();
|
|
return size;
|
|
}
|
|
|
|
/*static*/ void
|
|
ShadowLayerForwarder::CloseDescriptor(const SurfaceDescriptor& aDescriptor)
|
|
{
|
|
PlatformCloseDescriptor(aDescriptor);
|
|
// There's no "close" needed for Shmem surfaces.
|
|
}
|
|
|
|
// Destroy the Shmem SurfaceDescriptor |aSurface|.
|
|
template<class ShmemDeallocator>
|
|
static void
|
|
DestroySharedShmemSurface(SurfaceDescriptor* aSurface,
|
|
ShmemDeallocator* aDeallocator)
|
|
{
|
|
switch (aSurface->type()) {
|
|
case SurfaceDescriptor::TShmem: {
|
|
aDeallocator->DeallocShmem(aSurface->get_Shmem());
|
|
*aSurface = SurfaceDescriptor();
|
|
return;
|
|
}
|
|
default:
|
|
NS_RUNTIMEABORT("unexpected SurfaceDescriptor type!");
|
|
return;
|
|
}
|
|
}
|
|
|
|
void
|
|
ShadowLayerForwarder::DestroySharedSurface(SurfaceDescriptor* aSurface)
|
|
{
|
|
if (PlatformDestroySharedSurface(aSurface)) {
|
|
return;
|
|
}
|
|
if (aSurface->type() == SurfaceDescriptor::TShmem) {
|
|
DestroySharedShmemSurface(aSurface, mShadowManager);
|
|
}
|
|
}
|
|
|
|
|
|
PLayerChild*
|
|
ShadowLayerForwarder::ConstructShadowFor(ShadowableLayer* aLayer)
|
|
{
|
|
NS_ABORT_IF_FALSE(HasShadowManager(), "no manager to forward to");
|
|
return mShadowManager->SendPLayerConstructor(new ShadowLayerChild(aLayer));
|
|
}
|
|
|
|
|
|
void
|
|
ShadowLayerManager::DestroySharedSurface(gfxSharedImageSurface* aSurface,
|
|
PLayersParent* aDeallocator)
|
|
{
|
|
aDeallocator->DeallocShmem(aSurface->GetShmem());
|
|
}
|
|
|
|
void
|
|
ShadowLayerManager::DestroySharedSurface(SurfaceDescriptor* aSurface,
|
|
PLayersParent* aDeallocator)
|
|
{
|
|
if (PlatformDestroySharedSurface(aSurface)) {
|
|
return;
|
|
}
|
|
if (aSurface->type() == SurfaceDescriptor::TShmem) {
|
|
DestroySharedShmemSurface(aSurface, aDeallocator);
|
|
}
|
|
}
|
|
|
|
#if !defined(MOZ_HAVE_PLATFORM_SPECIFIC_LAYER_BUFFERS)
|
|
|
|
bool
|
|
ShadowLayerForwarder::PlatformAllocBuffer(const gfxIntSize&,
|
|
gfxASurface::gfxContentType,
|
|
uint32_t,
|
|
SurfaceDescriptor*)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
/*static*/ already_AddRefed<gfxASurface>
|
|
ShadowLayerForwarder::PlatformOpenDescriptor(OpenMode,
|
|
const SurfaceDescriptor&)
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
/*static*/ bool
|
|
ShadowLayerForwarder::PlatformCloseDescriptor(const SurfaceDescriptor&)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
/*static*/ bool
|
|
ShadowLayerForwarder::PlatformGetDescriptorSurfaceContentType(
|
|
const SurfaceDescriptor&,
|
|
OpenMode,
|
|
gfxContentType*,
|
|
gfxASurface**)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
/*static*/ bool
|
|
ShadowLayerForwarder::PlatformGetDescriptorSurfaceSize(
|
|
const SurfaceDescriptor&,
|
|
OpenMode,
|
|
gfxIntSize*,
|
|
gfxASurface**)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
ShadowLayerForwarder::PlatformDestroySharedSurface(SurfaceDescriptor*)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
/*static*/ void
|
|
ShadowLayerForwarder::PlatformSyncBeforeUpdate()
|
|
{
|
|
}
|
|
|
|
bool
|
|
ShadowLayerManager::PlatformDestroySharedSurface(SurfaceDescriptor*)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
/*static*/ already_AddRefed<TextureImage>
|
|
ShadowLayerManager::OpenDescriptorForDirectTexturing(GLContext*,
|
|
const SurfaceDescriptor&,
|
|
GLenum)
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
/*static*/ void
|
|
ShadowLayerManager::PlatformSyncBeforeReplyUpdate()
|
|
{
|
|
}
|
|
|
|
#endif // !defined(MOZ_HAVE_PLATFORM_SPECIFIC_LAYER_BUFFERS)
|
|
|
|
bool
|
|
IsSurfaceDescriptorValid(const SurfaceDescriptor& aSurface)
|
|
{
|
|
return SurfaceDescriptor::T__None != aSurface.type();
|
|
}
|
|
|
|
AutoOpenSurface::AutoOpenSurface(OpenMode aMode,
|
|
const SurfaceDescriptor& aDescriptor)
|
|
: mDescriptor(aDescriptor)
|
|
, mMode(aMode)
|
|
{
|
|
MOZ_ASSERT(IsSurfaceDescriptorValid(mDescriptor));
|
|
}
|
|
|
|
AutoOpenSurface::~AutoOpenSurface()
|
|
{
|
|
if (mSurface) {
|
|
mSurface = nullptr;
|
|
ShadowLayerForwarder::CloseDescriptor(mDescriptor);
|
|
}
|
|
}
|
|
|
|
gfxContentType
|
|
AutoOpenSurface::ContentType()
|
|
{
|
|
if (mSurface) {
|
|
return mSurface->GetContentType();
|
|
}
|
|
return ShadowLayerForwarder::GetDescriptorSurfaceContentType(
|
|
mDescriptor, mMode, getter_AddRefs(mSurface));
|
|
}
|
|
|
|
gfxIntSize
|
|
AutoOpenSurface::Size()
|
|
{
|
|
if (mSurface) {
|
|
return mSurface->GetSize();
|
|
}
|
|
return ShadowLayerForwarder::GetDescriptorSurfaceSize(
|
|
mDescriptor, mMode, getter_AddRefs(mSurface));
|
|
}
|
|
|
|
gfxASurface*
|
|
AutoOpenSurface::Get()
|
|
{
|
|
if (!mSurface) {
|
|
mSurface = ShadowLayerForwarder::OpenDescriptor(mMode, mDescriptor);
|
|
}
|
|
return mSurface.get();
|
|
}
|
|
|
|
gfxImageSurface*
|
|
AutoOpenSurface::GetAsImage()
|
|
{
|
|
if (!mSurfaceAsImage) {
|
|
mSurfaceAsImage = Get()->GetAsImageSurface();
|
|
}
|
|
return mSurfaceAsImage.get();
|
|
}
|
|
|
|
|
|
} // namespace layers
|
|
} // namespace mozilla
|