gecko/gfx/layers/ipc/ShadowLayers.cpp

782 lines
26 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=8 et :
*/
/* 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/. */
#include "ShadowLayers.h"
#include <set> // for _Rb_tree_const_iterator, etc
#include <vector> // for vector
#include "GeckoProfiler.h" // for PROFILER_LABEL
#include "ISurfaceAllocator.h" // for IsSurfaceDescriptorValid
#include "Layers.h" // for Layer
#include "RenderTrace.h" // for RenderTraceScope
#include "ShadowLayerChild.h" // for ShadowLayerChild
#include "gfx2DGlue.h" // for Moz2D transition helpers
#include "gfxPlatform.h" // for gfxImageFormat, gfxPlatform
#include "gfxSharedImageSurface.h" // for gfxSharedImageSurface
#include "ipc/IPCMessageUtils.h" // for gfxContentType, null_t
#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
#include "mozilla/gfx/Point.h" // for IntSize
#include "mozilla/layers/CompositableClient.h" // for CompositableClient, etc
#include "mozilla/layers/LayersMessages.h" // for Edit, etc
#include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor, etc
#include "mozilla/layers/LayersTypes.h" // for MOZ_LAYERS_LOG
#include "mozilla/layers/LayerTransactionChild.h"
#include "ShadowLayerUtils.h"
#include "mozilla/layers/TextureClient.h" // for TextureClient
#include "mozilla/mozalloc.h" // for operator new, etc
#include "nsAutoPtr.h" // for nsRefPtr, getter_AddRefs, etc
#include "nsDebug.h" // for NS_ABORT_IF_FALSE, etc
#include "nsRect.h" // for nsIntRect
#include "nsSize.h" // for nsIntSize
#include "nsTArray.h" // for nsAutoTArray, nsTArray, etc
#include "nsXULAppAPI.h" // for XRE_GetProcessType, etc
struct nsIntPoint;
namespace mozilla {
namespace ipc {
class Shmem;
}
namespace layers {
using namespace mozilla::ipc;
using namespace mozilla::gl;
class ClientTiledLayerBuffer;
typedef nsTArray<SurfaceDescriptor> BufferArray;
typedef std::vector<Edit> EditVector;
typedef std::set<ShadowableLayer*> ShadowableLayerSet;
class Transaction
{
public:
Transaction()
: mTargetRotation(ROTATION_0)
, mSwapRequired(false)
, mOpen(false)
, mRotationChanged(false)
{}
void Begin(const nsIntRect& aTargetBounds, ScreenRotation aRotation,
const nsIntRect& aClientBounds, dom::ScreenOrientation aOrientation)
{
mOpen = true;
mTargetBounds = aTargetBounds;
if (aRotation != mTargetRotation) {
// the first time this is called, mRotationChanged will be false if
// aRotation is 0, but we should be OK because for the first transaction
// we should only compose if it is non-empty. See the caller(s) of
// RotationChanged.
mRotationChanged = true;
}
mTargetRotation = aRotation;
mClientBounds = aClientBounds;
mTargetOrientation = aOrientation;
}
void MarkSyncTransaction()
{
mSwapRequired = true;
}
void AddEdit(const Edit& aEdit)
{
NS_ABORT_IF_FALSE(!Finished(), "forgot BeginTransaction?");
mCset.push_back(aEdit);
}
void AddEdit(const CompositableOperation& aEdit)
{
AddEdit(Edit(aEdit));
}
void AddPaint(const Edit& aPaint)
{
AddNoSwapPaint(aPaint);
mSwapRequired = true;
}
void AddPaint(const CompositableOperation& aPaint)
{
AddNoSwapPaint(Edit(aPaint));
mSwapRequired = true;
}
void AddNoSwapPaint(const Edit& aPaint)
{
NS_ABORT_IF_FALSE(!Finished(), "forgot BeginTransaction?");
mPaints.push_back(aPaint);
}
void AddNoSwapPaint(const CompositableOperation& aPaint)
{
NS_ABORT_IF_FALSE(!Finished(), "forgot BeginTransaction?");
mPaints.push_back(Edit(aPaint));
}
void AddMutant(ShadowableLayer* aLayer)
{
NS_ABORT_IF_FALSE(!Finished(), "forgot BeginTransaction?");
mMutants.insert(aLayer);
}
void End()
{
mCset.clear();
mPaints.clear();
mMutants.clear();
mOpen = false;
mSwapRequired = false;
mRotationChanged = false;
}
bool Empty() const {
return mCset.empty() && mPaints.empty() && mMutants.empty();
}
bool RotationChanged() const {
return mRotationChanged;
}
bool Finished() const { return !mOpen && Empty(); }
EditVector mCset;
EditVector mPaints;
ShadowableLayerSet mMutants;
nsIntRect mTargetBounds;
ScreenRotation mTargetRotation;
nsIntRect mClientBounds;
dom::ScreenOrientation mTargetOrientation;
bool mSwapRequired;
private:
bool mOpen;
bool mRotationChanged;
// disabled
Transaction(const Transaction&);
Transaction& operator=(const Transaction&);
};
struct AutoTxnEnd {
AutoTxnEnd(Transaction* aTxn) : mTxn(aTxn) {}
~AutoTxnEnd() { mTxn->End(); }
Transaction* mTxn;
};
void
CompositableForwarder::IdentifyTextureHost(const TextureFactoryIdentifier& aIdentifier)
{
mTextureFactoryIdentifier = aIdentifier;
}
ShadowLayerForwarder::ShadowLayerForwarder()
: mDiagnosticTypes(DiagnosticTypes::NO_DIAGNOSTIC)
, mIsFirstPaint(false)
, mWindowOverlayChanged(false)
{
mTxn = new Transaction();
}
ShadowLayerForwarder::~ShadowLayerForwarder()
{
NS_ABORT_IF_FALSE(mTxn->Finished(), "unfinished transaction?");
delete mTxn;
if (mShadowManager) {
mShadowManager->SetForwarder(nullptr);
mShadowManager->Destroy();
}
}
void
ShadowLayerForwarder::BeginTransaction(const nsIntRect& aTargetBounds,
ScreenRotation aRotation,
const nsIntRect& aClientBounds,
dom::ScreenOrientation aOrientation)
{
NS_ABORT_IF_FALSE(HasShadowManager(), "no manager to forward to");
NS_ABORT_IF_FALSE(mTxn->Finished(), "uncommitted txn?");
mTxn->Begin(aTargetBounds, aRotation, aClientBounds, aOrientation);
}
static PLayerChild*
Shadow(ShadowableLayer* aLayer)
{
return aLayer->GetShadow();
}
template<typename OpCreateT>
static void
CreatedLayer(Transaction* aTxn, ShadowableLayer* aLayer)
{
aTxn->AddEdit(OpCreateT(nullptr, Shadow(aLayer)));
}
void
ShadowLayerForwarder::CreatedThebesLayer(ShadowableLayer* aThebes)
{
CreatedLayer<OpCreateThebesLayer>(mTxn, aThebes);
}
void
ShadowLayerForwarder::CreatedContainerLayer(ShadowableLayer* aContainer)
{
CreatedLayer<OpCreateContainerLayer>(mTxn, aContainer);
}
void
ShadowLayerForwarder::CreatedImageLayer(ShadowableLayer* aImage)
{
CreatedLayer<OpCreateImageLayer>(mTxn, aImage);
}
void
ShadowLayerForwarder::CreatedColorLayer(ShadowableLayer* aColor)
{
CreatedLayer<OpCreateColorLayer>(mTxn, aColor);
}
void
ShadowLayerForwarder::CreatedCanvasLayer(ShadowableLayer* aCanvas)
{
CreatedLayer<OpCreateCanvasLayer>(mTxn, aCanvas);
}
void
ShadowLayerForwarder::CreatedRefLayer(ShadowableLayer* aRef)
{
CreatedLayer<OpCreateRefLayer>(mTxn, aRef);
}
void
ShadowLayerForwarder::Mutated(ShadowableLayer* aMutant)
{
mTxn->AddMutant(aMutant);
}
void
ShadowLayerForwarder::SetRoot(ShadowableLayer* aRoot)
{
mTxn->AddEdit(OpSetRoot(nullptr, Shadow(aRoot)));
}
void
ShadowLayerForwarder::InsertAfter(ShadowableLayer* aContainer,
ShadowableLayer* aChild,
ShadowableLayer* aAfter)
{
if (aAfter)
mTxn->AddEdit(OpInsertAfter(nullptr, Shadow(aContainer),
nullptr, Shadow(aChild),
nullptr, Shadow(aAfter)));
else
mTxn->AddEdit(OpPrependChild(nullptr, Shadow(aContainer),
nullptr, Shadow(aChild)));
}
void
ShadowLayerForwarder::RemoveChild(ShadowableLayer* aContainer,
ShadowableLayer* aChild)
{
MOZ_LAYERS_LOG(("[LayersForwarder] OpRemoveChild container=%p child=%p\n",
aContainer->AsLayer(), aChild->AsLayer()));
mTxn->AddEdit(OpRemoveChild(nullptr, Shadow(aContainer),
nullptr, Shadow(aChild)));
}
void
ShadowLayerForwarder::RepositionChild(ShadowableLayer* aContainer,
ShadowableLayer* aChild,
ShadowableLayer* aAfter)
{
if (aAfter) {
MOZ_LAYERS_LOG(("[LayersForwarder] OpRepositionChild container=%p child=%p after=%p",
aContainer->AsLayer(), aChild->AsLayer(), aAfter->AsLayer()));
mTxn->AddEdit(OpRepositionChild(nullptr, Shadow(aContainer),
nullptr, Shadow(aChild),
nullptr, Shadow(aAfter)));
} else {
MOZ_LAYERS_LOG(("[LayersForwarder] OpRaiseToTopChild container=%p child=%p",
aContainer->AsLayer(), aChild->AsLayer()));
mTxn->AddEdit(OpRaiseToTopChild(nullptr, Shadow(aContainer),
nullptr, Shadow(aChild)));
}
}
#ifdef DEBUG
void
ShadowLayerForwarder::CheckSurfaceDescriptor(const SurfaceDescriptor* aDescriptor) const
{
if (!aDescriptor) {
return;
}
if (aDescriptor->type() == SurfaceDescriptor::TSurfaceDescriptorShmem) {
const SurfaceDescriptorShmem& shmem = aDescriptor->get_SurfaceDescriptorShmem();
shmem.data().AssertInvariants();
MOZ_ASSERT(mShadowManager &&
mShadowManager->IsTrackingSharedMemory(shmem.data().mSegment));
}
}
#endif
void
ShadowLayerForwarder::UseTiledLayerBuffer(CompositableClient* aCompositable,
const SurfaceDescriptorTiles& aTileLayerDescriptor)
{
MOZ_ASSERT(aCompositable);
MOZ_ASSERT(aCompositable->GetIPDLActor());
mTxn->AddNoSwapPaint(OpUseTiledLayerBuffer(nullptr, aCompositable->GetIPDLActor(),
aTileLayerDescriptor));
}
void
ShadowLayerForwarder::UpdateTextureRegion(CompositableClient* aCompositable,
const ThebesBufferData& aThebesBufferData,
const nsIntRegion& aUpdatedRegion)
{
MOZ_ASSERT(aCompositable);
MOZ_ASSERT(aCompositable->GetIPDLActor());
mTxn->AddPaint(OpPaintTextureRegion(nullptr, aCompositable->GetIPDLActor(),
aThebesBufferData,
aUpdatedRegion));
}
void
ShadowLayerForwarder::UpdateTextureIncremental(CompositableClient* aCompositable,
TextureIdentifier aTextureId,
SurfaceDescriptor& aDescriptor,
const nsIntRegion& aUpdatedRegion,
const nsIntRect& aBufferRect,
const nsIntPoint& aBufferRotation)
{
CheckSurfaceDescriptor(&aDescriptor);
MOZ_ASSERT(aCompositable);
MOZ_ASSERT(aCompositable->GetIPDLActor());
mTxn->AddNoSwapPaint(OpPaintTextureIncremental(nullptr, aCompositable->GetIPDLActor(),
aTextureId,
aDescriptor,
aUpdatedRegion,
aBufferRect,
aBufferRotation));
}
void
ShadowLayerForwarder::UpdatePictureRect(CompositableClient* aCompositable,
const nsIntRect& aRect)
{
MOZ_ASSERT(aCompositable);
MOZ_ASSERT(aCompositable->GetIPDLActor());
mTxn->AddNoSwapPaint(OpUpdatePictureRect(nullptr, aCompositable->GetIPDLActor(), aRect));
}
void
ShadowLayerForwarder::UpdatedTexture(CompositableClient* aCompositable,
TextureClient* aTexture,
nsIntRegion* aRegion)
{
MOZ_ASSERT(aCompositable);
MOZ_ASSERT(aTexture);
MOZ_ASSERT(aCompositable->GetIPDLActor());
MOZ_ASSERT(aTexture->GetIPDLActor());
MaybeRegion region = aRegion ? MaybeRegion(*aRegion)
: MaybeRegion(null_t());
if (aTexture->GetFlags() & TextureFlags::IMMEDIATE_UPLOAD) {
mTxn->AddPaint(OpUpdateTexture(nullptr, aCompositable->GetIPDLActor(),
nullptr, aTexture->GetIPDLActor(),
region));
} else {
mTxn->AddNoSwapPaint(OpUpdateTexture(nullptr, aCompositable->GetIPDLActor(),
nullptr, aTexture->GetIPDLActor(),
region));
}
}
void
ShadowLayerForwarder::UseTexture(CompositableClient* aCompositable,
TextureClient* aTexture)
{
MOZ_ASSERT(aCompositable);
MOZ_ASSERT(aTexture);
MOZ_ASSERT(aCompositable->GetIPDLActor());
MOZ_ASSERT(aTexture->GetIPDLActor());
mTxn->AddEdit(OpUseTexture(nullptr, aCompositable->GetIPDLActor(),
nullptr, aTexture->GetIPDLActor()));
}
void
ShadowLayerForwarder::UseComponentAlphaTextures(CompositableClient* aCompositable,
TextureClient* aTextureOnBlack,
TextureClient* aTextureOnWhite)
{
MOZ_ASSERT(aCompositable);
MOZ_ASSERT(aTextureOnWhite);
MOZ_ASSERT(aTextureOnBlack);
MOZ_ASSERT(aCompositable->GetIPDLActor());
MOZ_ASSERT(aTextureOnBlack->GetIPDLActor());
MOZ_ASSERT(aTextureOnWhite->GetIPDLActor());
MOZ_ASSERT(aTextureOnBlack->GetSize() == aTextureOnWhite->GetSize());
mTxn->AddEdit(OpUseComponentAlphaTextures(nullptr, aCompositable->GetIPDLActor(),
nullptr, aTextureOnBlack->GetIPDLActor(),
nullptr, aTextureOnWhite->GetIPDLActor()));
}
void
ShadowLayerForwarder::RemoveTextureFromCompositable(CompositableClient* aCompositable,
TextureClient* aTexture)
{
MOZ_ASSERT(aCompositable);
MOZ_ASSERT(aTexture);
MOZ_ASSERT(aCompositable->GetIPDLActor());
MOZ_ASSERT(aTexture->GetIPDLActor());
mTxn->AddEdit(OpRemoveTexture(nullptr, aCompositable->GetIPDLActor(),
nullptr, aTexture->GetIPDLActor()));
if (aTexture->GetFlags() & TextureFlags::DEALLOCATE_CLIENT) {
mTxn->MarkSyncTransaction();
}
// Hold texture until transaction complete.
HoldUntilTransaction(aTexture);
}
void
ShadowLayerForwarder::RemoveTextureFromCompositableAsync(AsyncTransactionTracker* aAsyncTransactionTracker,
CompositableClient* aCompositable,
TextureClient* aTexture)
{
mTxn->AddEdit(OpRemoveTextureAsync(CompositableClient::GetTrackersHolderId(aCompositable->GetIPDLActor()),
aAsyncTransactionTracker->GetId(),
nullptr, aCompositable->GetIPDLActor(),
nullptr, aTexture->GetIPDLActor()));
// Hold AsyncTransactionTracker until receving reply
CompositableClient::HoldUntilComplete(aCompositable->GetIPDLActor(),
aAsyncTransactionTracker);
}
void
ShadowLayerForwarder::RemoveTexture(TextureClient* aTexture)
{
MOZ_ASSERT(aTexture);
aTexture->ForceRemove();
}
bool
ShadowLayerForwarder::EndTransaction(InfallibleTArray<EditReply>* aReplies,
const nsIntRegion& aRegionToClear,
uint64_t aId,
bool aScheduleComposite,
uint32_t aPaintSequenceNumber,
bool* aSent)
{
*aSent = false;
MOZ_ASSERT(aId);
PROFILER_LABEL("ShadowLayerForwarder", "EndTranscation");
RenderTraceScope rendertrace("Foward Transaction", "000091");
NS_ABORT_IF_FALSE(HasShadowManager(), "no manager to forward to");
NS_ABORT_IF_FALSE(!mTxn->Finished(), "forgot BeginTransaction?");
DiagnosticTypes diagnostics = gfxPlatform::GetPlatform()->GetLayerDiagnosticTypes();
if (mDiagnosticTypes != diagnostics) {
mDiagnosticTypes = diagnostics;
mTxn->AddEdit(OpSetDiagnosticTypes(diagnostics));
}
AutoTxnEnd _(mTxn);
if (mTxn->Empty() && !mTxn->RotationChanged() && !mWindowOverlayChanged) {
MOZ_LAYERS_LOG(("[LayersForwarder] 0-length cset (?) and no rotation event, skipping Update()"));
return true;
}
MOZ_LAYERS_LOG(("[LayersForwarder] destroying buffers..."));
MOZ_LAYERS_LOG(("[LayersForwarder] building transaction..."));
// We purposely add attribute-change ops to the final changeset
// before we add paint ops. This allows layers to record the
// attribute changes before new pixels arrive, which can be useful
// for setting up back/front buffers.
RenderTraceScope rendertrace2("Foward Transaction", "000092");
for (ShadowableLayerSet::const_iterator it = mTxn->mMutants.begin();
it != mTxn->mMutants.end(); ++it) {
ShadowableLayer* shadow = *it;
Layer* mutant = shadow->AsLayer();
NS_ABORT_IF_FALSE(!!mutant, "unshadowable layer?");
LayerAttributes attrs;
CommonLayerAttributes& common = attrs.common();
common.visibleRegion() = mutant->GetVisibleRegion();
common.eventRegions() = mutant->GetEventRegions();
common.postXScale() = mutant->GetPostXScale();
common.postYScale() = mutant->GetPostYScale();
common.transform() = mutant->GetBaseTransform();
common.contentFlags() = mutant->GetContentFlags();
common.opacity() = mutant->GetOpacity();
common.useClipRect() = !!mutant->GetClipRect();
common.clipRect() = (common.useClipRect() ?
*mutant->GetClipRect() : nsIntRect());
common.isFixedPosition() = mutant->GetIsFixedPosition();
common.fixedPositionAnchor() = mutant->GetFixedPositionAnchor();
common.fixedPositionMargin() = mutant->GetFixedPositionMargins();
common.isStickyPosition() = mutant->GetIsStickyPosition();
if (mutant->GetIsStickyPosition()) {
common.stickyScrollContainerId() = mutant->GetStickyScrollContainerId();
common.stickyScrollRangeOuter() = mutant->GetStickyScrollRangeOuter();
common.stickyScrollRangeInner() = mutant->GetStickyScrollRangeInner();
}
common.scrollbarTargetContainerId() = mutant->GetScrollbarTargetContainerId();
common.scrollbarDirection() = mutant->GetScrollbarDirection();
common.mixBlendMode() = (int8_t)mutant->GetMixBlendMode();
common.forceIsolatedGroup() = mutant->GetForceIsolatedGroup();
if (Layer* maskLayer = mutant->GetMaskLayer()) {
common.maskLayerChild() = Shadow(maskLayer->AsShadowableLayer());
} else {
common.maskLayerChild() = nullptr;
}
common.maskLayerParent() = nullptr;
common.animations() = mutant->GetAnimations();
common.invalidRegion() = mutant->GetInvalidRegion();
attrs.specific() = null_t();
mutant->FillSpecificAttributes(attrs.specific());
MOZ_LAYERS_LOG(("[LayersForwarder] OpSetLayerAttributes(%p)\n", mutant));
mTxn->AddEdit(OpSetLayerAttributes(nullptr, Shadow(shadow), attrs));
}
AutoInfallibleTArray<Edit, 10> cset;
size_t nCsets = mTxn->mCset.size() + mTxn->mPaints.size();
NS_ABORT_IF_FALSE(nCsets > 0 || mWindowOverlayChanged, "should have bailed by now");
cset.SetCapacity(nCsets);
if (!mTxn->mCset.empty()) {
cset.AppendElements(&mTxn->mCset.front(), mTxn->mCset.size());
}
// Paints after non-paint ops, including attribute changes. See
// above.
if (!mTxn->mPaints.empty()) {
cset.AppendElements(&mTxn->mPaints.front(), mTxn->mPaints.size());
}
mWindowOverlayChanged = false;
TargetConfig targetConfig(mTxn->mTargetBounds,
mTxn->mTargetRotation,
mTxn->mClientBounds,
mTxn->mTargetOrientation,
aRegionToClear);
MOZ_LAYERS_LOG(("[LayersForwarder] syncing before send..."));
PlatformSyncBeforeUpdate();
profiler_tracing("Paint", "Rasterize", TRACING_INTERVAL_END);
if (mTxn->mSwapRequired) {
MOZ_LAYERS_LOG(("[LayersForwarder] sending transaction..."));
RenderTraceScope rendertrace3("Forward Transaction", "000093");
if (!HasShadowManager() ||
!mShadowManager->IPCOpen() ||
!mShadowManager->SendUpdate(cset, aId, targetConfig, mIsFirstPaint,
aScheduleComposite, aPaintSequenceNumber,
aReplies)) {
MOZ_LAYERS_LOG(("[LayersForwarder] WARNING: sending transaction failed!"));
return false;
}
} else {
// If we don't require a swap we can call SendUpdateNoSwap which
// assumes that aReplies is empty (DEBUG assertion)
MOZ_LAYERS_LOG(("[LayersForwarder] sending no swap transaction..."));
RenderTraceScope rendertrace3("Forward NoSwap Transaction", "000093");
if (!HasShadowManager() ||
!mShadowManager->IPCOpen() ||
!mShadowManager->SendUpdateNoSwap(cset, aId, targetConfig, mIsFirstPaint,
aPaintSequenceNumber, aScheduleComposite)) {
MOZ_LAYERS_LOG(("[LayersForwarder] WARNING: sending transaction failed!"));
return false;
}
}
*aSent = true;
mIsFirstPaint = false;
MOZ_LAYERS_LOG(("[LayersForwarder] ... done"));
return true;
}
bool
ShadowLayerForwarder::AllocShmem(size_t aSize,
ipc::SharedMemory::SharedMemoryType aType,
ipc::Shmem* aShmem)
{
NS_ABORT_IF_FALSE(HasShadowManager(), "no shadow manager");
if (!HasShadowManager() ||
!mShadowManager->IPCOpen()) {
return false;
}
return mShadowManager->AllocShmem(aSize, aType, aShmem);
}
bool
ShadowLayerForwarder::AllocUnsafeShmem(size_t aSize,
ipc::SharedMemory::SharedMemoryType aType,
ipc::Shmem* aShmem)
{
NS_ABORT_IF_FALSE(HasShadowManager(), "no shadow manager");
if (!HasShadowManager() ||
!mShadowManager->IPCOpen()) {
return false;
}
return mShadowManager->AllocUnsafeShmem(aSize, aType, aShmem);
}
void
ShadowLayerForwarder::DeallocShmem(ipc::Shmem& aShmem)
{
NS_ABORT_IF_FALSE(HasShadowManager(), "no shadow manager");
if (!HasShadowManager() ||
!mShadowManager->IPCOpen()) {
return;
}
mShadowManager->DeallocShmem(aShmem);
}
bool
ShadowLayerForwarder::IPCOpen() const
{
return mShadowManager->IPCOpen();
}
bool
ShadowLayerForwarder::IsSameProcess() const
{
if (!mShadowManager->IPCOpen()) {
return false;
}
return mShadowManager->OtherProcess() == kInvalidProcessHandle;
}
/**
* We bail out when we have no shadow manager. That can happen when the
* layer manager is created by the preallocated process.
* See bug 914843 for details.
*/
PLayerChild*
ShadowLayerForwarder::ConstructShadowFor(ShadowableLayer* aLayer)
{
NS_ABORT_IF_FALSE(HasShadowManager(), "no manager to forward to");
if (!HasShadowManager() ||
!mShadowManager->IPCOpen()) {
return nullptr;
}
return mShadowManager->SendPLayerConstructor(new ShadowLayerChild(aLayer));
}
#if !defined(MOZ_HAVE_PLATFORM_SPECIFIC_LAYER_BUFFERS)
/*static*/ void
ShadowLayerForwarder::PlatformSyncBeforeUpdate()
{
}
#endif // !defined(MOZ_HAVE_PLATFORM_SPECIFIC_LAYER_BUFFERS)
void
ShadowLayerForwarder::Connect(CompositableClient* aCompositable)
{
#ifdef GFX_COMPOSITOR_LOGGING
printf("ShadowLayerForwarder::Connect(Compositable)\n");
#endif
MOZ_ASSERT(aCompositable);
MOZ_ASSERT(mShadowManager);
if (!HasShadowManager() ||
!mShadowManager->IPCOpen()) {
return;
}
PCompositableChild* actor =
mShadowManager->SendPCompositableConstructor(aCompositable->GetTextureInfo());
MOZ_ASSERT(actor);
aCompositable->InitIPDLActor(actor);
}
void
ShadowLayerForwarder::CreatedIncrementalBuffer(CompositableClient* aCompositable,
const TextureInfo& aTextureInfo,
const nsIntRect& aBufferRect)
{
MOZ_ASSERT(aCompositable);
mTxn->AddNoSwapPaint(OpCreatedIncrementalTexture(nullptr, aCompositable->GetIPDLActor(),
aTextureInfo, aBufferRect));
}
void ShadowLayerForwarder::Attach(CompositableClient* aCompositable,
ShadowableLayer* aLayer)
{
MOZ_ASSERT(aLayer);
MOZ_ASSERT(aCompositable);
MOZ_ASSERT(aCompositable->GetIPDLActor());
mTxn->AddEdit(OpAttachCompositable(nullptr, Shadow(aLayer),
nullptr, aCompositable->GetIPDLActor()));
}
void ShadowLayerForwarder::AttachAsyncCompositable(uint64_t aCompositableID,
ShadowableLayer* aLayer)
{
MOZ_ASSERT(aLayer);
MOZ_ASSERT(aCompositableID != 0); // zero is always an invalid compositable id.
mTxn->AddEdit(OpAttachAsyncCompositable(nullptr, Shadow(aLayer),
aCompositableID));
}
PTextureChild*
ShadowLayerForwarder::CreateTexture(const SurfaceDescriptor& aSharedData,
TextureFlags aFlags)
{
if (!HasShadowManager() ||
!mShadowManager->IPCOpen()) {
return nullptr;
}
return mShadowManager->SendPTextureConstructor(aSharedData, aFlags);
}
void ShadowLayerForwarder::SetShadowManager(PLayerTransactionChild* aShadowManager)
{
mShadowManager = static_cast<LayerTransactionChild*>(aShadowManager);
mShadowManager->SetForwarder(this);
}
void ShadowLayerForwarder::StopReceiveAsyncParentMessge()
{
if (!HasShadowManager() ||
!mShadowManager->IPCOpen()) {
return;
}
SendPendingAsyncMessge();
mShadowManager->SetForwarder(nullptr);
}
void ShadowLayerForwarder::ClearCachedResources()
{
if (!HasShadowManager() ||
!mShadowManager->IPCOpen()) {
return;
}
SendPendingAsyncMessge();
mShadowManager->SendClearCachedResources();
}
void ShadowLayerForwarder::Composite()
{
if (!HasShadowManager() ||
!mShadowManager->IPCOpen()) {
return;
}
mShadowManager->SendForceComposite();
}
void ShadowLayerForwarder::SendPendingAsyncMessge()
{
if (!HasShadowManager() ||
!mShadowManager->IPCOpen() ||
mTransactionsToRespond.empty()) {
return;
}
// Send OpReplyDeliverFence messages
InfallibleTArray<AsyncChildMessageData> replies;
replies.SetCapacity(mTransactionsToRespond.size());
for (size_t i = 0; i < mTransactionsToRespond.size(); i++) {
replies.AppendElement(OpReplyDeliverFence(mTransactionsToRespond[i]));
}
mTransactionsToRespond.clear();
mShadowManager->SendChildAsyncMessages(replies);
}
} // namespace layers
} // namespace mozilla