fune/gfx/layers/ipc/ShadowLayers.cpp
Margareta Eliza Balazs b1e7992b82 Backed out 8 changesets (bug 1265824) for bustage in /builds/worker/workspace/build/src/gfx/layers/opengl/CompositorOGL.cpp on a CLOSED TREE
Backed out changeset 1099d6f15f9f (bug 1265824)
Backed out changeset b5ba15b1a70f (bug 1265824)
Backed out changeset 51795de4adaf (bug 1265824)
Backed out changeset be68741ff4ce (bug 1265824)
Backed out changeset 4731dc56702d (bug 1265824)
Backed out changeset 984133e9614b (bug 1265824)
Backed out changeset efce316a4425 (bug 1265824)
Backed out changeset 367abce30668 (bug 1265824)
2018-07-19 09:33:28 +03:00

1123 lines
34 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "ClientLayerManager.h" // for ClientLayerManager
#include "ShadowLayers.h"
#include <set> // for _Rb_tree_const_iterator, etc
#include <vector> // for vector
#include "GeckoProfiler.h" // for AUTO_PROFILER_LABEL
#include "ISurfaceAllocator.h" // for IsSurfaceDescriptorValid
#include "Layers.h" // for Layer
#include "RenderTrace.h" // for RenderTraceScope
#include "gfx2DGlue.h" // for Moz2D transition helpers
#include "gfxPlatform.h" // for gfxImageFormat, gfxPlatform
#include "gfxPrefs.h"
//#include "gfxSharedImageSurface.h" // for gfxSharedImageSurface
#include "ipc/IPCMessageUtils.h" // for gfxContentType, null_t
#include "IPDLActor.h"
#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
#include "mozilla/dom/TabGroup.h"
#include "mozilla/gfx/Point.h" // for IntSize
#include "mozilla/layers/CompositableClient.h" // for CompositableClient, etc
#include "mozilla/layers/CompositorBridgeChild.h"
#include "mozilla/layers/ContentClient.h"
#include "mozilla/layers/ImageDataSerializer.h"
#include "mozilla/layers/ImageBridgeChild.h"
#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 "mozilla/layers/PTextureChild.h"
#include "mozilla/layers/SyncObject.h"
#include "ShadowLayerUtils.h"
#include "mozilla/layers/TextureClient.h" // for TextureClient
#include "mozilla/mozalloc.h" // for operator new, etc
#include "nsTArray.h" // for AutoTArray, nsTArray, etc
#include "nsXULAppAPI.h" // for XRE_GetProcessType, etc
#include "mozilla/ReentrantMonitor.h"
namespace mozilla {
namespace ipc {
class Shmem;
} // namespace ipc
namespace layers {
using namespace mozilla::gfx;
using namespace mozilla::gl;
using namespace mozilla::ipc;
class ClientTiledLayerBuffer;
typedef nsTArray<SurfaceDescriptor> BufferArray;
typedef nsTArray<Edit> EditVector;
typedef nsTHashtable<nsPtrHashKey<ShadowableLayer>> ShadowableLayerSet;
typedef nsTArray<OpDestroy> OpDestroyVector;
class Transaction
{
public:
Transaction()
: mTargetRotation(ROTATION_0)
, mOpen(false)
, mRotationChanged(false)
{}
void Begin(const gfx::IntRect& aTargetBounds, ScreenRotation aRotation,
dom::ScreenOrientationInternal 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;
mTargetOrientation = aOrientation;
}
void AddEdit(const Edit& aEdit)
{
MOZ_ASSERT(!Finished(), "forgot BeginTransaction?");
mCset.AppendElement(aEdit);
}
void AddEdit(const CompositableOperation& aEdit)
{
AddEdit(Edit(aEdit));
}
void AddNoSwapPaint(const CompositableOperation& aPaint)
{
MOZ_ASSERT(!Finished(), "forgot BeginTransaction?");
mPaints.AppendElement(Edit(aPaint));
}
void AddMutant(ShadowableLayer* aLayer)
{
MOZ_ASSERT(!Finished(), "forgot BeginTransaction?");
mMutants.PutEntry(aLayer);
}
void AddSimpleMutant(ShadowableLayer* aLayer)
{
MOZ_ASSERT(!Finished(), "forgot BeginTransaction?");
mSimpleMutants.PutEntry(aLayer);
}
void End()
{
mCset.Clear();
mPaints.Clear();
mMutants.Clear();
mSimpleMutants.Clear();
mDestroyedActors.Clear();
mOpen = false;
mRotationChanged = false;
}
bool Empty() const {
return mCset.IsEmpty() &&
mPaints.IsEmpty() &&
mMutants.IsEmpty() &&
mSimpleMutants.IsEmpty() &&
mDestroyedActors.IsEmpty();
}
bool RotationChanged() const {
return mRotationChanged;
}
bool Finished() const { return !mOpen && Empty(); }
bool Opened() const { return mOpen; }
EditVector mCset;
nsTArray<CompositableOperation> mPaints;
OpDestroyVector mDestroyedActors;
ShadowableLayerSet mMutants;
ShadowableLayerSet mSimpleMutants;
gfx::IntRect mTargetBounds;
ScreenRotation mTargetRotation;
dom::ScreenOrientationInternal mTargetOrientation;
private:
bool mOpen;
bool mRotationChanged;
// disabled
Transaction(const Transaction&);
Transaction& operator=(const Transaction&);
};
struct AutoTxnEnd {
explicit AutoTxnEnd(Transaction* aTxn) : mTxn(aTxn) {}
~AutoTxnEnd() { mTxn->End(); }
Transaction* mTxn;
};
void
KnowsCompositor::IdentifyTextureHost(const TextureFactoryIdentifier& aIdentifier)
{
mTextureFactoryIdentifier = aIdentifier;
mSyncObject = SyncObjectClient::CreateSyncObjectClient(aIdentifier.mSyncHandle);
}
KnowsCompositor::KnowsCompositor()
: mSerial(++sSerialCounter)
{}
KnowsCompositor::~KnowsCompositor()
{}
KnowsCompositorMediaProxy::KnowsCompositorMediaProxy(const TextureFactoryIdentifier& aIdentifier)
{
mTextureFactoryIdentifier = aIdentifier;
// overwrite mSerial's value set by the parent class because we use the same serial
// as the KnowsCompositor we are proxying.
mThreadSafeAllocator = ImageBridgeChild::GetSingleton();
mSyncObject = mThreadSafeAllocator->GetSyncObject();
}
KnowsCompositorMediaProxy::~KnowsCompositorMediaProxy()
{}
TextureForwarder*
KnowsCompositorMediaProxy::GetTextureForwarder()
{
return mThreadSafeAllocator->GetTextureForwarder();
}
LayersIPCActor*
KnowsCompositorMediaProxy::GetLayersIPCActor()
{
return mThreadSafeAllocator->GetLayersIPCActor();
}
ActiveResourceTracker*
KnowsCompositorMediaProxy::GetActiveResourceTracker()
{
return mThreadSafeAllocator->GetActiveResourceTracker();
}
void
KnowsCompositorMediaProxy::SyncWithCompositor()
{
mThreadSafeAllocator->SyncWithCompositor();
}
RefPtr<KnowsCompositor>
ShadowLayerForwarder::GetForMedia()
{
return MakeAndAddRef<KnowsCompositorMediaProxy>(GetTextureFactoryIdentifier());
}
ShadowLayerForwarder::ShadowLayerForwarder(ClientLayerManager* aClientLayerManager)
: mClientLayerManager(aClientLayerManager)
, mMessageLoop(MessageLoop::current())
, mDiagnosticTypes(DiagnosticTypes::NO_DIAGNOSTIC)
, mIsFirstPaint(false)
, mWindowOverlayChanged(false)
, mNextLayerHandle(1)
{
mTxn = new Transaction();
if (TabGroup* tabGroup = mClientLayerManager->GetTabGroup()) {
mEventTarget = tabGroup->EventTargetFor(TaskCategory::Other);
}
MOZ_ASSERT(mEventTarget || !XRE_IsContentProcess());
mActiveResourceTracker = MakeUnique<ActiveResourceTracker>(
1000, "CompositableForwarder", mEventTarget);
}
template<typename T>
struct ReleaseOnMainThreadTask : public Runnable
{
UniquePtr<T> mObj;
explicit ReleaseOnMainThreadTask(UniquePtr<T>& aObj)
: Runnable("layers::ReleaseOnMainThreadTask")
, mObj(std::move(aObj))
{}
NS_IMETHOD Run() override {
mObj = nullptr;
return NS_OK;
}
};
ShadowLayerForwarder::~ShadowLayerForwarder()
{
MOZ_ASSERT(mTxn->Finished(), "unfinished transaction?");
delete mTxn;
if (mShadowManager) {
mShadowManager->SetForwarder(nullptr);
if (NS_IsMainThread()) {
mShadowManager->Destroy();
} else {
if (mEventTarget) {
mEventTarget->Dispatch(
NewRunnableMethod("LayerTransactionChild::Destroy", mShadowManager,
&LayerTransactionChild::Destroy),
nsIEventTarget::DISPATCH_NORMAL);
} else {
NS_DispatchToMainThread(
NewRunnableMethod("layers::LayerTransactionChild::Destroy",
mShadowManager,
&LayerTransactionChild::Destroy));
}
}
}
if (!NS_IsMainThread()) {
RefPtr<ReleaseOnMainThreadTask<ActiveResourceTracker>> event =
new ReleaseOnMainThreadTask<ActiveResourceTracker>(mActiveResourceTracker);
if (mEventTarget) {
mEventTarget->Dispatch(event.forget(), nsIEventTarget::DISPATCH_NORMAL);
} else {
NS_DispatchToMainThread(event);
}
}
}
void
ShadowLayerForwarder::BeginTransaction(const gfx::IntRect& aTargetBounds,
ScreenRotation aRotation,
dom::ScreenOrientationInternal aOrientation)
{
MOZ_ASSERT(IPCOpen(), "no manager to forward to");
MOZ_ASSERT(mTxn->Finished(), "uncommitted txn?");
UpdateFwdTransactionId();
mTxn->Begin(aTargetBounds, aRotation, aOrientation);
}
static const LayerHandle&
Shadow(ShadowableLayer* aLayer)
{
return aLayer->GetShadow();
}
template<typename OpCreateT>
static void
CreatedLayer(Transaction* aTxn, ShadowableLayer* aLayer)
{
aTxn->AddEdit(OpCreateT(Shadow(aLayer)));
}
void
ShadowLayerForwarder::CreatedPaintedLayer(ShadowableLayer* aThebes)
{
CreatedLayer<OpCreatePaintedLayer>(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::MutatedSimple(ShadowableLayer* aMutant)
{
mTxn->AddSimpleMutant(aMutant);
}
void
ShadowLayerForwarder::SetRoot(ShadowableLayer* aRoot)
{
mTxn->AddEdit(OpSetRoot(Shadow(aRoot)));
}
void
ShadowLayerForwarder::InsertAfter(ShadowableLayer* aContainer,
ShadowableLayer* aChild,
ShadowableLayer* aAfter)
{
if (!aChild->HasShadow()) {
return;
}
while (aAfter && !aAfter->HasShadow()) {
aAfter = aAfter->AsLayer()->GetPrevSibling() ? aAfter->AsLayer()->GetPrevSibling()->AsShadowableLayer() : nullptr;
}
if (aAfter) {
mTxn->AddEdit(OpInsertAfter(Shadow(aContainer), Shadow(aChild), Shadow(aAfter)));
} else {
mTxn->AddEdit(OpPrependChild(Shadow(aContainer), Shadow(aChild)));
}
}
void
ShadowLayerForwarder::RemoveChild(ShadowableLayer* aContainer,
ShadowableLayer* aChild)
{
MOZ_LAYERS_LOG(("[LayersForwarder] OpRemoveChild container=%p child=%p\n",
aContainer->AsLayer(), aChild->AsLayer()));
if (!aChild->HasShadow()) {
return;
}
mTxn->AddEdit(OpRemoveChild(Shadow(aContainer), Shadow(aChild)));
}
void
ShadowLayerForwarder::RepositionChild(ShadowableLayer* aContainer,
ShadowableLayer* aChild,
ShadowableLayer* aAfter)
{
if (!aChild->HasShadow()) {
return;
}
while (aAfter && !aAfter->HasShadow()) {
aAfter = aAfter->AsLayer()->GetPrevSibling() ? aAfter->AsLayer()->GetPrevSibling()->AsShadowableLayer() : nullptr;
}
if (aAfter) {
MOZ_LAYERS_LOG(("[LayersForwarder] OpRepositionChild container=%p child=%p after=%p",
aContainer->AsLayer(), aChild->AsLayer(), aAfter->AsLayer()));
mTxn->AddEdit(OpRepositionChild(Shadow(aContainer), Shadow(aChild), Shadow(aAfter)));
} else {
MOZ_LAYERS_LOG(("[LayersForwarder] OpRaiseToTopChild container=%p child=%p",
aContainer->AsLayer(), aChild->AsLayer()));
mTxn->AddEdit(OpRaiseToTopChild(Shadow(aContainer), Shadow(aChild)));
}
}
#ifdef DEBUG
void
ShadowLayerForwarder::CheckSurfaceDescriptor(const SurfaceDescriptor* aDescriptor) const
{
if (!aDescriptor) {
return;
}
if (aDescriptor->type() == SurfaceDescriptor::TSurfaceDescriptorBuffer &&
aDescriptor->get_SurfaceDescriptorBuffer().data().type() == MemoryOrShmem::TShmem) {
const Shmem& shmem = aDescriptor->get_SurfaceDescriptorBuffer().data().get_Shmem();
shmem.AssertInvariants();
MOZ_ASSERT(mShadowManager &&
mShadowManager->IsTrackingSharedMemory(shmem.mSegment));
}
}
#endif
void
ShadowLayerForwarder::UseTiledLayerBuffer(CompositableClient* aCompositable,
const SurfaceDescriptorTiles& aTileLayerDescriptor)
{
MOZ_ASSERT(aCompositable);
if (!aCompositable->IsConnected()) {
return;
}
mTxn->AddNoSwapPaint(CompositableOperation(aCompositable->GetIPCHandle(),
OpUseTiledLayerBuffer(aTileLayerDescriptor)));
}
void
ShadowLayerForwarder::UpdateTextureRegion(CompositableClient* aCompositable,
const ThebesBufferData& aThebesBufferData,
const nsIntRegion& aUpdatedRegion)
{
MOZ_ASSERT(aCompositable);
if (!aCompositable->IsConnected()) {
return;
}
mTxn->AddNoSwapPaint(
CompositableOperation(
aCompositable->GetIPCHandle(),
OpPaintTextureRegion(aThebesBufferData, aUpdatedRegion)));
}
void
ShadowLayerForwarder::UseTextures(CompositableClient* aCompositable,
const nsTArray<TimedTextureClient>& aTextures)
{
MOZ_ASSERT(aCompositable);
if (!aCompositable->IsConnected()) {
return;
}
AutoTArray<TimedTexture,4> textures;
for (auto& t : aTextures) {
MOZ_ASSERT(t.mTextureClient);
MOZ_ASSERT(t.mTextureClient->GetIPDLActor());
MOZ_RELEASE_ASSERT(t.mTextureClient->GetIPDLActor()->GetIPCChannel() == mShadowManager->GetIPCChannel());
bool readLocked = t.mTextureClient->OnForwardedToHost();
textures.AppendElement(TimedTexture(nullptr, t.mTextureClient->GetIPDLActor(),
t.mTimeStamp, t.mPictureRect,
t.mFrameID, t.mProducerID,
readLocked));
mClientLayerManager->GetCompositorBridgeChild()->HoldUntilCompositableRefReleasedIfNecessary(t.mTextureClient);
}
mTxn->AddEdit(CompositableOperation(aCompositable->GetIPCHandle(),
OpUseTexture(textures)));
}
void
ShadowLayerForwarder::UseComponentAlphaTextures(CompositableClient* aCompositable,
TextureClient* aTextureOnBlack,
TextureClient* aTextureOnWhite)
{
MOZ_ASSERT(aCompositable);
if (!aCompositable->IsConnected()) {
return;
}
MOZ_ASSERT(aTextureOnWhite);
MOZ_ASSERT(aTextureOnBlack);
MOZ_ASSERT(aCompositable->GetIPCHandle());
MOZ_ASSERT(aTextureOnBlack->GetIPDLActor());
MOZ_ASSERT(aTextureOnWhite->GetIPDLActor());
MOZ_ASSERT(aTextureOnBlack->GetSize() == aTextureOnWhite->GetSize());
MOZ_RELEASE_ASSERT(aTextureOnWhite->GetIPDLActor()->GetIPCChannel() == mShadowManager->GetIPCChannel());
MOZ_RELEASE_ASSERT(aTextureOnBlack->GetIPDLActor()->GetIPCChannel() == mShadowManager->GetIPCChannel());
bool readLockedB = aTextureOnBlack->OnForwardedToHost();
bool readLockedW = aTextureOnWhite->OnForwardedToHost();
mClientLayerManager->GetCompositorBridgeChild()->HoldUntilCompositableRefReleasedIfNecessary(aTextureOnBlack);
mClientLayerManager->GetCompositorBridgeChild()->HoldUntilCompositableRefReleasedIfNecessary(aTextureOnWhite);
mTxn->AddEdit(
CompositableOperation(
aCompositable->GetIPCHandle(),
OpUseComponentAlphaTextures(
nullptr, aTextureOnBlack->GetIPDLActor(),
nullptr, aTextureOnWhite->GetIPDLActor(),
readLockedB, readLockedW)
)
);
}
static bool
AddOpDestroy(Transaction* aTxn, const OpDestroy& op)
{
if (!aTxn->Opened()) {
return false;
}
aTxn->mDestroyedActors.AppendElement(op);
return true;
}
bool
ShadowLayerForwarder::DestroyInTransaction(PTextureChild* aTexture)
{
return AddOpDestroy(mTxn, OpDestroy(aTexture));
}
bool
ShadowLayerForwarder::DestroyInTransaction(const CompositableHandle& aHandle)
{
return AddOpDestroy(mTxn, OpDestroy(aHandle));
}
void
ShadowLayerForwarder::RemoveTextureFromCompositable(CompositableClient* aCompositable,
TextureClient* aTexture)
{
MOZ_ASSERT(aCompositable);
MOZ_ASSERT(aTexture);
MOZ_ASSERT(aTexture->GetIPDLActor());
MOZ_RELEASE_ASSERT(aTexture->GetIPDLActor()->GetIPCChannel() == mShadowManager->GetIPCChannel());
if (!aCompositable->IsConnected() || !aTexture->GetIPDLActor()) {
// We don't have an actor anymore, don't try to use it!
return;
}
mTxn->AddEdit(
CompositableOperation(
aCompositable->GetIPCHandle(),
OpRemoveTexture(nullptr, aTexture->GetIPDLActor())));
}
bool
ShadowLayerForwarder::InWorkerThread()
{
return MessageLoop::current() && (GetTextureForwarder()->GetMessageLoop()->id() == MessageLoop::current()->id());
}
void
ShadowLayerForwarder::StorePluginWidgetConfigurations(const nsTArray<nsIWidget::Configuration>&
aConfigurations)
{
// Cache new plugin widget configs here until we call update, at which
// point this data will get shipped over to chrome.
mPluginWindowData.Clear();
for (uint32_t idx = 0; idx < aConfigurations.Length(); idx++) {
const nsIWidget::Configuration& configuration = aConfigurations[idx];
mPluginWindowData.AppendElement(PluginWindowData(configuration.mWindowID,
configuration.mClipRegion,
configuration.mBounds,
configuration.mVisible));
}
}
void
ShadowLayerForwarder::SendPaintTime(TransactionId aId, TimeDuration aPaintTime)
{
if (!IPCOpen() ||
!mShadowManager->SendPaintTime(aId, aPaintTime)) {
NS_WARNING("Could not send paint times over IPC");
}
}
bool
ShadowLayerForwarder::EndTransaction(const nsIntRegion& aRegionToClear,
TransactionId aId,
bool aScheduleComposite,
uint32_t aPaintSequenceNumber,
bool aIsRepeatTransaction,
const mozilla::TimeStamp& aRefreshStart,
const mozilla::TimeStamp& aTransactionStart,
bool* aSent)
{
*aSent = false;
TransactionInfo info;
MOZ_ASSERT(IPCOpen(), "no manager to forward to");
if (!IPCOpen()) {
return false;
}
Maybe<TimeStamp> startTime;
if (gfxPrefs::LayersDrawFPS()) {
startTime = Some(TimeStamp::Now());
}
GetCompositorBridgeChild()->WillEndTransaction();
MOZ_ASSERT(aId.IsValid());
AUTO_PROFILER_LABEL("ShadowLayerForwarder::EndTransaction", GRAPHICS);
RenderTraceScope rendertrace("Foward Transaction", "000091");
MOZ_ASSERT(!mTxn->Finished(), "forgot BeginTransaction?");
DiagnosticTypes diagnostics = gfxPlatform::GetPlatform()->GetLayerDiagnosticTypes();
if (mDiagnosticTypes != diagnostics) {
mDiagnosticTypes = diagnostics;
mTxn->AddEdit(OpSetDiagnosticTypes(diagnostics));
}
if (mWindowOverlayChanged) {
mTxn->AddEdit(OpWindowOverlayChanged());
}
AutoTxnEnd _(mTxn);
if (mTxn->Empty() && !mTxn->RotationChanged()) {
MOZ_LAYERS_LOG(("[LayersForwarder] 0-length cset (?) and no rotation event, skipping Update()"));
return true;
}
if (!mTxn->mPaints.IsEmpty()) {
// With some platforms, telling the drawing backend that there will be no more
// drawing for this frame helps with preventing command queues from spanning
// across multiple frames.
gfxPlatform::GetPlatform()->FlushContentDrawing();
}
MOZ_LAYERS_LOG(("[LayersForwarder] destroying buffers..."));
MOZ_LAYERS_LOG(("[LayersForwarder] building transaction..."));
nsTArray<OpSetSimpleLayerAttributes> setSimpleAttrs;
for (ShadowableLayerSet::Iterator it(&mTxn->mSimpleMutants); !it.Done(); it.Next()) {
ShadowableLayer* shadow = it.Get()->GetKey();
if (!shadow->HasShadow()) {
continue;
}
Layer* mutant = shadow->AsLayer();
setSimpleAttrs.AppendElement(OpSetSimpleLayerAttributes(
Shadow(shadow),
mutant->GetSimpleAttributes()));
}
nsTArray<OpSetLayerAttributes> setAttrs;
// 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::Iterator it(&mTxn->mMutants);
!it.Done(); it.Next()) {
ShadowableLayer* shadow = it.Get()->GetKey();
if (!shadow->HasShadow()) {
continue;
}
Layer* mutant = shadow->AsLayer();
MOZ_ASSERT(!!mutant, "unshadowable layer?");
OpSetLayerAttributes op;
op.layer() = Shadow(shadow);
LayerAttributes& attrs = op.attrs();
CommonLayerAttributes& common = attrs.common();
common.visibleRegion() = mutant->GetVisibleRegion();
common.eventRegions() = mutant->GetEventRegions();
common.useClipRect() = !!mutant->GetClipRect();
common.clipRect() = (common.useClipRect() ?
*mutant->GetClipRect() : ParentLayerIntRect());
if (Layer* maskLayer = mutant->GetMaskLayer()) {
common.maskLayer() = Shadow(maskLayer->AsShadowableLayer());
} else {
common.maskLayer() = LayerHandle();
}
common.compositorAnimations().id() = mutant->GetCompositorAnimationsId();
common.compositorAnimations().animations() = mutant->GetAnimations();
common.invalidRegion() = mutant->GetInvalidRegion().GetRegion();
common.scrollMetadata() = mutant->GetAllScrollMetadata();
for (size_t i = 0; i < mutant->GetAncestorMaskLayerCount(); i++) {
auto layer = Shadow(mutant->GetAncestorMaskLayerAt(i)->AsShadowableLayer());
common.ancestorMaskLayers().AppendElement(layer);
}
nsCString log;
mutant->GetDisplayListLog(log);
common.displayListLog() = log;
attrs.specific() = null_t();
mutant->FillSpecificAttributes(attrs.specific());
MOZ_LAYERS_LOG(("[LayersForwarder] OpSetLayerAttributes(%p)\n", mutant));
setAttrs.AppendElement(op);
}
if (mTxn->mCset.IsEmpty() &&
mTxn->mPaints.IsEmpty() &&
setAttrs.IsEmpty() &&
!mTxn->RotationChanged())
{
return true;
}
mWindowOverlayChanged = false;
info.cset() = std::move(mTxn->mCset);
info.setSimpleAttrs() = std::move(setSimpleAttrs);
info.setAttrs() = std::move(setAttrs);
info.paints() = std::move(mTxn->mPaints);
info.toDestroy() = mTxn->mDestroyedActors;
info.fwdTransactionId() = GetFwdTransactionId();
info.id() = aId;
info.plugins() = mPluginWindowData;
info.isFirstPaint() = mIsFirstPaint;
info.focusTarget() = mFocusTarget;
info.scheduleComposite() = aScheduleComposite;
info.paintSequenceNumber() = aPaintSequenceNumber;
info.isRepeatTransaction() = aIsRepeatTransaction;
info.refreshStart() = aRefreshStart;
info.transactionStart() = aTransactionStart;
#if defined(ENABLE_FRAME_LATENCY_LOG)
info.fwdTime() = TimeStamp::Now();
#endif
TargetConfig targetConfig(mTxn->mTargetBounds,
mTxn->mTargetRotation,
mTxn->mTargetOrientation,
aRegionToClear);
info.targetConfig() = targetConfig;
if (!GetTextureForwarder()->IsSameProcess()) {
MOZ_LAYERS_LOG(("[LayersForwarder] syncing before send..."));
PlatformSyncBeforeUpdate();
}
if (startTime) {
mPaintTiming.serializeMs() = (TimeStamp::Now() - startTime.value()).ToMilliseconds();
startTime = Some(TimeStamp::Now());
}
// We delay at the last possible minute, to give the paint thread a chance to
// finish. If it does we don't have to delay messages at all.
GetCompositorBridgeChild()->PostponeMessagesIfAsyncPainting();
MOZ_LAYERS_LOG(("[LayersForwarder] sending transaction..."));
RenderTraceScope rendertrace3("Forward Transaction", "000093");
if (!mShadowManager->SendUpdate(info)) {
MOZ_LAYERS_LOG(("[LayersForwarder] WARNING: sending transaction failed!"));
return false;
}
if (startTime) {
mPaintTiming.sendMs() = (TimeStamp::Now() - startTime.value()).ToMilliseconds();
mShadowManager->SendRecordPaintTimes(mPaintTiming);
}
*aSent = true;
mIsFirstPaint = false;
mFocusTarget = FocusTarget();
MOZ_LAYERS_LOG(("[LayersForwarder] ... done"));
return true;
}
RefPtr<CompositableClient>
ShadowLayerForwarder::FindCompositable(const CompositableHandle& aHandle)
{
CompositableClient* client = nullptr;
if (!mCompositables.Get(aHandle.Value(), &client)) {
return nullptr;
}
return client;
}
void
ShadowLayerForwarder::SetLayerObserverEpoch(uint64_t aLayerObserverEpoch)
{
if (!IPCOpen()) {
return;
}
Unused << mShadowManager->SendSetLayerObserverEpoch(aLayerObserverEpoch);
}
void
ShadowLayerForwarder::ReleaseLayer(const LayerHandle& aHandle)
{
if (!IPCOpen()) {
return;
}
Unused << mShadowManager->SendReleaseLayer(aHandle);
}
bool
ShadowLayerForwarder::IPCOpen() const
{
return HasShadowManager() && mShadowManager->IPCOpen();
}
/**
* 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.
*/
LayerHandle
ShadowLayerForwarder::ConstructShadowFor(ShadowableLayer* aLayer)
{
return LayerHandle(mNextLayerHandle++);
}
#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,
ImageContainer* aImageContainer)
{
#ifdef GFX_COMPOSITOR_LOGGING
printf("ShadowLayerForwarder::Connect(Compositable)\n");
#endif
MOZ_ASSERT(aCompositable);
MOZ_ASSERT(mShadowManager);
if (!IPCOpen()) {
return;
}
static uint64_t sNextID = 1;
uint64_t id = sNextID++;
mCompositables.Put(id, aCompositable);
CompositableHandle handle(id);
aCompositable->InitIPDL(handle);
mShadowManager->SendNewCompositable(handle, aCompositable->GetTextureInfo());
}
void ShadowLayerForwarder::Attach(CompositableClient* aCompositable,
ShadowableLayer* aLayer)
{
MOZ_ASSERT(aLayer);
MOZ_ASSERT(aCompositable);
mTxn->AddEdit(OpAttachCompositable(Shadow(aLayer), aCompositable->GetIPCHandle()));
}
void ShadowLayerForwarder::AttachAsyncCompositable(const CompositableHandle& aHandle,
ShadowableLayer* aLayer)
{
MOZ_ASSERT(aLayer);
MOZ_ASSERT(aHandle);
mTxn->AddEdit(OpAttachAsyncCompositable(Shadow(aLayer), aHandle));
}
void ShadowLayerForwarder::SetShadowManager(PLayerTransactionChild* aShadowManager)
{
mShadowManager = static_cast<LayerTransactionChild*>(aShadowManager);
mShadowManager->SetForwarder(this);
}
void ShadowLayerForwarder::StopReceiveAsyncParentMessge()
{
if (!IPCOpen()) {
return;
}
mShadowManager->SetForwarder(nullptr);
}
void ShadowLayerForwarder::ClearCachedResources()
{
if (!IPCOpen()) {
return;
}
mShadowManager->SendClearCachedResources();
}
void ShadowLayerForwarder::ScheduleComposite()
{
if (!IPCOpen()) {
return;
}
mShadowManager->SendScheduleComposite();
}
bool
IsSurfaceDescriptorValid(const SurfaceDescriptor& aSurface)
{
return aSurface.type() != SurfaceDescriptor::T__None &&
aSurface.type() != SurfaceDescriptor::Tnull_t;
}
uint8_t*
GetAddressFromDescriptor(const SurfaceDescriptor& aDescriptor)
{
MOZ_ASSERT(IsSurfaceDescriptorValid(aDescriptor));
MOZ_RELEASE_ASSERT(aDescriptor.type() == SurfaceDescriptor::TSurfaceDescriptorBuffer, "GFX: surface descriptor is not the right type.");
auto memOrShmem = aDescriptor.get_SurfaceDescriptorBuffer().data();
if (memOrShmem.type() == MemoryOrShmem::TShmem) {
return memOrShmem.get_Shmem().get<uint8_t>();
} else {
return reinterpret_cast<uint8_t*>(memOrShmem.get_uintptr_t());
}
}
already_AddRefed<gfx::DataSourceSurface>
GetSurfaceForDescriptor(const SurfaceDescriptor& aDescriptor)
{
if (aDescriptor.type() != SurfaceDescriptor::TSurfaceDescriptorBuffer) {
return nullptr;
}
uint8_t* data = GetAddressFromDescriptor(aDescriptor);
auto rgb = aDescriptor.get_SurfaceDescriptorBuffer().desc().get_RGBDescriptor();
uint32_t stride = ImageDataSerializer::GetRGBStride(rgb);
return gfx::Factory::CreateWrappingDataSourceSurface(data, stride, rgb.size(),
rgb.format());
}
already_AddRefed<gfx::DrawTarget>
GetDrawTargetForDescriptor(const SurfaceDescriptor& aDescriptor, gfx::BackendType aBackend)
{
uint8_t* data = GetAddressFromDescriptor(aDescriptor);
auto rgb = aDescriptor.get_SurfaceDescriptorBuffer().desc().get_RGBDescriptor();
uint32_t stride = ImageDataSerializer::GetRGBStride(rgb);
return gfx::Factory::CreateDrawTargetForData(gfx::BackendType::CAIRO,
data, rgb.size(),
stride, rgb.format());
}
void
DestroySurfaceDescriptor(IShmemAllocator* aAllocator, SurfaceDescriptor* aSurface)
{
MOZ_ASSERT(aSurface);
SurfaceDescriptorBuffer& desc = aSurface->get_SurfaceDescriptorBuffer();
switch (desc.data().type()) {
case MemoryOrShmem::TShmem: {
aAllocator->DeallocShmem(desc.data().get_Shmem());
break;
}
case MemoryOrShmem::Tuintptr_t: {
uint8_t* ptr = (uint8_t*)desc.data().get_uintptr_t();
GfxMemoryImageReporter::WillFree(ptr);
delete [] ptr;
break;
}
default:
MOZ_CRASH("surface type not implemented!");
}
*aSurface = SurfaceDescriptor();
}
bool
ShadowLayerForwarder::AllocSurfaceDescriptor(const gfx::IntSize& aSize,
gfxContentType aContent,
SurfaceDescriptor* aBuffer)
{
if (!IPCOpen()) {
return false;
}
return AllocSurfaceDescriptorWithCaps(aSize, aContent, DEFAULT_BUFFER_CAPS, aBuffer);
}
bool
ShadowLayerForwarder::AllocSurfaceDescriptorWithCaps(const gfx::IntSize& aSize,
gfxContentType aContent,
uint32_t aCaps,
SurfaceDescriptor* aBuffer)
{
if (!IPCOpen()) {
return false;
}
gfx::SurfaceFormat format =
gfxPlatform::GetPlatform()->Optimal2DFormatForContent(aContent);
size_t size = ImageDataSerializer::ComputeRGBBufferSize(aSize, format);
if (!size) {
return false;
}
MemoryOrShmem bufferDesc;
if (GetTextureForwarder()->IsSameProcess()) {
uint8_t* data = new (std::nothrow) uint8_t[size];
if (!data) {
return false;
}
GfxMemoryImageReporter::DidAlloc(data);
memset(data, 0, size);
bufferDesc = reinterpret_cast<uintptr_t>(data);
} else {
mozilla::ipc::Shmem shmem;
if (!GetTextureForwarder()->AllocUnsafeShmem(size, OptimalShmemType(), &shmem)) {
return false;
}
bufferDesc = shmem;
}
// Use an intermediate buffer by default. Skipping the intermediate buffer is
// only possible in certain configurations so let's keep it simple here for now.
const bool hasIntermediateBuffer = true;
*aBuffer = SurfaceDescriptorBuffer(RGBDescriptor(aSize, format, hasIntermediateBuffer),
bufferDesc);
return true;
}
/* static */ bool
ShadowLayerForwarder::IsShmem(SurfaceDescriptor* aSurface)
{
return aSurface && (aSurface->type() == SurfaceDescriptor::TSurfaceDescriptorBuffer)
&& (aSurface->get_SurfaceDescriptorBuffer().data().type() == MemoryOrShmem::TShmem);
}
void
ShadowLayerForwarder::DestroySurfaceDescriptor(SurfaceDescriptor* aSurface)
{
MOZ_ASSERT(aSurface);
MOZ_ASSERT(IPCOpen());
if (!IPCOpen() || !aSurface) {
return;
}
::mozilla::layers::DestroySurfaceDescriptor(GetTextureForwarder(), aSurface);
}
void
ShadowLayerForwarder::UpdateFwdTransactionId()
{
auto compositorBridge = GetCompositorBridgeChild();
if (compositorBridge) {
compositorBridge->UpdateFwdTransactionId();
}
}
uint64_t
ShadowLayerForwarder::GetFwdTransactionId()
{
auto compositorBridge = GetCompositorBridgeChild();
MOZ_DIAGNOSTIC_ASSERT(compositorBridge);
return compositorBridge ? compositorBridge->GetFwdTransactionId() : 0;
}
CompositorBridgeChild*
ShadowLayerForwarder::GetCompositorBridgeChild()
{
if (mCompositorBridgeChild) {
return mCompositorBridgeChild;
}
if (!mShadowManager) {
return nullptr;
}
mCompositorBridgeChild = static_cast<CompositorBridgeChild*>(mShadowManager->Manager());
return mCompositorBridgeChild;
}
void
ShadowLayerForwarder::SyncWithCompositor()
{
auto compositorBridge = GetCompositorBridgeChild();
if (compositorBridge && compositorBridge->IPCOpen()) {
compositorBridge->SendSyncWithCompositor();
}
}
void
ShadowLayerForwarder::ReleaseCompositable(const CompositableHandle& aHandle)
{
AssertInForwarderThread();
if (!DestroyInTransaction(aHandle)) {
if (!IPCOpen()) {
return;
}
mShadowManager->SendReleaseCompositable(aHandle);
}
mCompositables.Remove(aHandle.Value());
}
void
ShadowLayerForwarder::SynchronouslyShutdown()
{
if (IPCOpen()) {
mShadowManager->SendShutdownSync();
mShadowManager->MarkDestroyed();
}
}
ShadowableLayer::~ShadowableLayer()
{
if (mShadow) {
mForwarder->ReleaseLayer(GetShadow());
}
}
} // namespace layers
} // namespace mozilla