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gecko-dev/gfx/layers/client/ClientLayerManager.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* 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"
#include "GeckoProfiler.h" // for PROFILER_LABEL
#include "gfxPrefs.h" // for gfxPrefs::LayersTile...
#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
#include "mozilla/Hal.h"
#include "mozilla/dom/ScreenOrientation.h" // for ScreenOrientation
#include "mozilla/dom/TabChild.h" // for TabChild
#include "mozilla/hal_sandbox/PHal.h" // for ScreenConfiguration
#include "mozilla/layers/CompositableClient.h"
#include "mozilla/layers/CompositorChild.h" // for CompositorChild
#include "mozilla/layers/ContentClient.h"
#include "mozilla/layers/ISurfaceAllocator.h"
#include "mozilla/layers/LayersMessages.h" // for EditReply, etc
#include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor
#include "mozilla/layers/PLayerChild.h" // for PLayerChild
#include "mozilla/layers/LayerTransactionChild.h"
#include "mozilla/layers/TextureClientPool.h" // for TextureClientPool
#include "ClientReadbackLayer.h" // for ClientReadbackLayer
#include "nsAString.h"
#include "nsIWidgetListener.h"
#include "nsTArray.h" // for AutoInfallibleTArray
#include "nsXULAppAPI.h" // for XRE_GetProcessType, etc
#include "TiledLayerBuffer.h"
#include "mozilla/dom/WindowBinding.h" // for Overfill Callback
#include "FrameLayerBuilder.h" // for FrameLayerbuilder
#ifdef MOZ_WIDGET_ANDROID
#include "AndroidBridge.h"
#include "LayerMetricsWrapper.h"
#endif
#ifdef XP_WIN
#include "gfxWindowsPlatform.h"
#endif
namespace mozilla {
namespace layers {
using namespace mozilla::gfx;
void
ClientLayerManager::MemoryPressureObserver::Destroy()
{
UnregisterMemoryPressureEvent();
mClientLayerManager = nullptr;
}
NS_IMETHODIMP
ClientLayerManager::MemoryPressureObserver::Observe(nsISupports* aSubject,
const char* aTopic,
const char16_t* aSomeData)
{
if (!mClientLayerManager || strcmp(aTopic, "memory-pressure")) {
return NS_OK;
}
mClientLayerManager->HandleMemoryPressure();
return NS_OK;
}
void
ClientLayerManager::MemoryPressureObserver::RegisterMemoryPressureEvent()
{
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
MOZ_ASSERT(observerService);
if (observerService) {
observerService->AddObserver(this, "memory-pressure", false);
}
}
void
ClientLayerManager::MemoryPressureObserver::UnregisterMemoryPressureEvent()
{
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
if (observerService) {
observerService->RemoveObserver(this, "memory-pressure");
}
}
NS_IMPL_ISUPPORTS(ClientLayerManager::MemoryPressureObserver, nsIObserver)
ClientLayerManager::ClientLayerManager(nsIWidget* aWidget)
: mPhase(PHASE_NONE)
, mWidget(aWidget)
, mLatestTransactionId(0)
, mTargetRotation(ROTATION_0)
, mRepeatTransaction(false)
, mIsRepeatTransaction(false)
, mTransactionIncomplete(false)
, mCompositorMightResample(false)
, mNeedsComposite(false)
, mPaintSequenceNumber(0)
, mForwarder(new ShadowLayerForwarder)
{
MOZ_COUNT_CTOR(ClientLayerManager);
mMemoryPressureObserver = new MemoryPressureObserver(this);
}
ClientLayerManager::~ClientLayerManager()
{
if (mTransactionIdAllocator) {
DidComposite(mLatestTransactionId);
}
mMemoryPressureObserver->Destroy();
ClearCachedResources();
// Stop receiveing AsyncParentMessage at Forwarder.
// After the call, the message is directly handled by LayerTransactionChild.
// Basically this function should be called in ShadowLayerForwarder's
// destructor. But when the destructor is triggered by
// CompositorChild::Destroy(), the destructor can not handle it correctly.
// See Bug 1000525.
mForwarder->StopReceiveAsyncParentMessge();
mRoot = nullptr;
MOZ_COUNT_DTOR(ClientLayerManager);
}
int32_t
ClientLayerManager::GetMaxTextureSize() const
{
return mForwarder->GetMaxTextureSize();
}
void
ClientLayerManager::SetDefaultTargetConfiguration(BufferMode aDoubleBuffering,
ScreenRotation aRotation)
{
mTargetRotation = aRotation;
}
void
ClientLayerManager::SetRoot(Layer* aLayer)
{
if (mRoot != aLayer) {
// Have to hold the old root and its children in order to
// maintain the same view of the layer tree in this process as
// the parent sees. Otherwise layers can be destroyed
// mid-transaction and bad things can happen (v. bug 612573)
if (mRoot) {
Hold(mRoot);
}
mForwarder->SetRoot(Hold(aLayer));
NS_ASSERTION(aLayer, "Root can't be null");
NS_ASSERTION(aLayer->Manager() == this, "Wrong manager");
NS_ASSERTION(InConstruction(), "Only allowed in construction phase");
mRoot = aLayer;
}
}
void
ClientLayerManager::Mutated(Layer* aLayer)
{
LayerManager::Mutated(aLayer);
NS_ASSERTION(InConstruction() || InDrawing(), "wrong phase");
mForwarder->Mutated(Hold(aLayer));
}
already_AddRefed<ReadbackLayer>
ClientLayerManager::CreateReadbackLayer()
{
nsRefPtr<ReadbackLayer> layer = new ClientReadbackLayer(this);
return layer.forget();
}
void
ClientLayerManager::BeginTransactionWithTarget(gfxContext* aTarget)
{
mInTransaction = true;
mTransactionStart = TimeStamp::Now();
#ifdef MOZ_LAYERS_HAVE_LOG
MOZ_LAYERS_LOG(("[----- BeginTransaction"));
Log();
#endif
NS_ASSERTION(!InTransaction(), "Nested transactions not allowed");
mPhase = PHASE_CONSTRUCTION;
MOZ_ASSERT(mKeepAlive.IsEmpty(), "uncommitted txn?");
nsRefPtr<gfxContext> targetContext = aTarget;
// If the last transaction was incomplete (a failed DoEmptyTransaction),
// don't signal a new transaction to ShadowLayerForwarder. Carry on adding
// to the previous transaction.
dom::ScreenOrientation orientation;
if (dom::TabChild* window = mWidget->GetOwningTabChild()) {
orientation = window->GetOrientation();
} else {
hal::ScreenConfiguration currentConfig;
hal::GetCurrentScreenConfiguration(&currentConfig);
orientation = currentConfig.orientation();
}
nsIntRect targetBounds = mWidget->GetNaturalBounds();
targetBounds.x = targetBounds.y = 0;
mForwarder->BeginTransaction(targetBounds, mTargetRotation, orientation);
// If we're drawing on behalf of a context with async pan/zoom
// enabled, then the entire buffer of painted layers might be
// composited (including resampling) asynchronously before we get
// a chance to repaint, so we have to ensure that it's all valid
// and not rotated.
//
// Desktop does not support async zoom yet, so we ignore this for those
// platforms.
#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
if (mWidget) {
if (dom::TabChild* window = mWidget->GetOwningTabChild()) {
mCompositorMightResample = window->IsAsyncPanZoomEnabled();
}
}
#endif
// If we have a non-default target, we need to let our shadow manager draw
// to it. This will happen at the end of the transaction.
if (aTarget && XRE_GetProcessType() == GeckoProcessType_Default) {
mShadowTarget = aTarget;
} else {
NS_ASSERTION(!aTarget,
"Content-process ClientLayerManager::BeginTransactionWithTarget not supported");
}
// If this is a new paint, increment the paint sequence number.
if (!mIsRepeatTransaction && gfxPrefs::APZTestLoggingEnabled()) {
++mPaintSequenceNumber;
mApzTestData.StartNewPaint(mPaintSequenceNumber);
}
}
void
ClientLayerManager::BeginTransaction()
{
BeginTransactionWithTarget(nullptr);
}
bool
ClientLayerManager::EndTransactionInternal(DrawPaintedLayerCallback aCallback,
void* aCallbackData,
EndTransactionFlags)
{
PROFILER_LABEL("ClientLayerManager", "EndTransactionInternal",
js::ProfileEntry::Category::GRAPHICS);
#ifdef MOZ_LAYERS_HAVE_LOG
MOZ_LAYERS_LOG((" ----- (beginning paint)"));
Log();
#endif
profiler_tracing("Paint", "Rasterize", TRACING_INTERVAL_START);
NS_ASSERTION(InConstruction(), "Should be in construction phase");
mPhase = PHASE_DRAWING;
ClientLayer* root = ClientLayer::ToClientLayer(GetRoot());
mTransactionIncomplete = false;
// Apply pending tree updates before recomputing effective
// properties.
GetRoot()->ApplyPendingUpdatesToSubtree();
mPaintedLayerCallback = aCallback;
mPaintedLayerCallbackData = aCallbackData;
GetRoot()->ComputeEffectiveTransforms(Matrix4x4());
root->RenderLayer();
if (!mRepeatTransaction && !GetRoot()->GetInvalidRegion().IsEmpty()) {
GetRoot()->Mutated();
}
if (!mIsRepeatTransaction) {
mAnimationReadyTime = TimeStamp::Now();
GetRoot()->StartPendingAnimations(mAnimationReadyTime);
}
mPaintedLayerCallback = nullptr;
mPaintedLayerCallbackData = nullptr;
// Go back to the construction phase if the transaction isn't complete.
// Layout will update the layer tree and call EndTransaction().
mPhase = mTransactionIncomplete ? PHASE_CONSTRUCTION : PHASE_NONE;
NS_ASSERTION(!aCallback || !mTransactionIncomplete,
"If callback is not null, transaction must be complete");
if (gfxPlatform::GetPlatform()->DidRenderingDeviceReset()) {
FrameLayerBuilder::InvalidateAllLayers(this);
}
return !mTransactionIncomplete;
}
void
ClientLayerManager::StorePluginWidgetConfigurations(const nsTArray<nsIWidget::Configuration>& aConfigurations)
{
if (mForwarder) {
mForwarder->StorePluginWidgetConfigurations(aConfigurations);
}
}
void
ClientLayerManager::EndTransaction(DrawPaintedLayerCallback aCallback,
void* aCallbackData,
EndTransactionFlags aFlags)
{
if (mWidget) {
mWidget->PrepareWindowEffects();
}
EndTransactionInternal(aCallback, aCallbackData, aFlags);
ForwardTransaction(!(aFlags & END_NO_REMOTE_COMPOSITE));
if (mRepeatTransaction) {
mRepeatTransaction = false;
mIsRepeatTransaction = true;
BeginTransaction();
ClientLayerManager::EndTransaction(aCallback, aCallbackData, aFlags);
mIsRepeatTransaction = false;
} else {
MakeSnapshotIfRequired();
}
for (size_t i = 0; i < mTexturePools.Length(); i++) {
mTexturePools[i]->ReturnDeferredClients();
}
mInTransaction = false;
mTransactionStart = TimeStamp();
}
bool
ClientLayerManager::EndEmptyTransaction(EndTransactionFlags aFlags)
{
mInTransaction = false;
if (!mRoot) {
return false;
}
if (!EndTransactionInternal(nullptr, nullptr, aFlags)) {
// Return without calling ForwardTransaction. This leaves the
// ShadowLayerForwarder transaction open; the following
// EndTransaction will complete it.
return false;
}
if (mWidget) {
mWidget->PrepareWindowEffects();
}
ForwardTransaction(!(aFlags & END_NO_REMOTE_COMPOSITE));
MakeSnapshotIfRequired();
return true;
}
CompositorChild *
ClientLayerManager::GetRemoteRenderer()
{
if (!mWidget) {
return nullptr;
}
return mWidget->GetRemoteRenderer();
}
CompositorChild*
ClientLayerManager::GetCompositorChild()
{
if (XRE_GetProcessType() != GeckoProcessType_Default) {
return CompositorChild::Get();
}
return GetRemoteRenderer();
}
void
ClientLayerManager::Composite()
{
mForwarder->Composite();
}
void
ClientLayerManager::DidComposite(uint64_t aTransactionId)
{
MOZ_ASSERT(mWidget);
nsIWidgetListener *listener = mWidget->GetWidgetListener();
if (listener) {
listener->DidCompositeWindow();
}
listener = mWidget->GetAttachedWidgetListener();
if (listener) {
listener->DidCompositeWindow();
}
mTransactionIdAllocator->NotifyTransactionCompleted(aTransactionId);
}
void
ClientLayerManager::GetCompositorSideAPZTestData(APZTestData* aData) const
{
if (mForwarder->HasShadowManager()) {
if (!mForwarder->GetShadowManager()->SendGetAPZTestData(aData)) {
NS_WARNING("Call to PLayerTransactionChild::SendGetAPZTestData() failed");
}
}
}
float
ClientLayerManager::RequestProperty(const nsAString& aProperty)
{
if (mForwarder->HasShadowManager()) {
float value;
if (!mForwarder->GetShadowManager()->SendRequestProperty(nsString(aProperty), &value)) {
NS_WARNING("Call to PLayerTransactionChild::SendGetAPZTestData() failed");
}
return value;
}
return -1;
}
void
ClientLayerManager::StartNewRepaintRequest(SequenceNumber aSequenceNumber)
{
if (gfxPrefs::APZTestLoggingEnabled()) {
mApzTestData.StartNewRepaintRequest(aSequenceNumber);
}
}
bool
ClientLayerManager::RequestOverfill(mozilla::dom::OverfillCallback* aCallback)
{
MOZ_ASSERT(aCallback != nullptr);
MOZ_ASSERT(HasShadowManager(), "Request Overfill only supported on b2g for now");
if (HasShadowManager()) {
CompositorChild* child = GetRemoteRenderer();
NS_ASSERTION(child, "Could not get CompositorChild");
child->AddOverfillObserver(this);
child->SendRequestOverfill();
mOverfillCallbacks.AppendElement(aCallback);
}
return true;
}
void
ClientLayerManager::RunOverfillCallback(const uint32_t aOverfill)
{
for (size_t i = 0; i < mOverfillCallbacks.Length(); i++) {
ErrorResult error;
mOverfillCallbacks[i]->Call(aOverfill, error);
}
mOverfillCallbacks.Clear();
}
void
ClientLayerManager::MakeSnapshotIfRequired()
{
if (!mShadowTarget) {
return;
}
if (mWidget) {
if (CompositorChild* remoteRenderer = GetRemoteRenderer()) {
// The compositor doesn't draw to a different sized surface
// when there's a rotation. Instead we rotate the result
// when drawing into dt
nsIntRect outerBounds;
mWidget->GetBounds(outerBounds);
nsIntRect bounds = ToOutsideIntRect(mShadowTarget->GetClipExtents());
if (mTargetRotation) {
bounds = RotateRect(bounds, outerBounds, mTargetRotation);
}
SurfaceDescriptor inSnapshot;
if (!bounds.IsEmpty() &&
mForwarder->AllocSurfaceDescriptor(bounds.Size().ToIntSize(),
gfxContentType::COLOR_ALPHA,
&inSnapshot) &&
remoteRenderer->SendMakeSnapshot(inSnapshot, bounds)) {
RefPtr<DataSourceSurface> surf = GetSurfaceForDescriptor(inSnapshot);
DrawTarget* dt = mShadowTarget->GetDrawTarget();
Rect dstRect(bounds.x, bounds.y, bounds.width, bounds.height);
Rect srcRect(0, 0, bounds.width, bounds.height);
gfx::Matrix rotate = ComputeTransformForUnRotation(outerBounds, mTargetRotation);
gfx::Matrix oldMatrix = dt->GetTransform();
dt->SetTransform(oldMatrix * rotate);
dt->DrawSurface(surf, dstRect, srcRect,
DrawSurfaceOptions(),
DrawOptions(1.0f, CompositionOp::OP_OVER));
dt->SetTransform(oldMatrix);
}
mForwarder->DestroySharedSurface(&inSnapshot);
}
}
mShadowTarget = nullptr;
}
void
ClientLayerManager::FlushRendering()
{
if (mWidget) {
if (CompositorChild* remoteRenderer = mWidget->GetRemoteRenderer()) {
remoteRenderer->SendFlushRendering();
}
}
}
void
ClientLayerManager::SendInvalidRegion(const nsIntRegion& aRegion)
{
if (mWidget) {
if (CompositorChild* remoteRenderer = mWidget->GetRemoteRenderer()) {
remoteRenderer->SendNotifyRegionInvalidated(aRegion);
}
}
}
uint32_t
ClientLayerManager::StartFrameTimeRecording(int32_t aBufferSize)
{
CompositorChild* renderer = GetRemoteRenderer();
if (renderer) {
uint32_t startIndex;
renderer->SendStartFrameTimeRecording(aBufferSize, &startIndex);
return startIndex;
}
return -1;
}
void
ClientLayerManager::StopFrameTimeRecording(uint32_t aStartIndex,
nsTArray<float>& aFrameIntervals)
{
CompositorChild* renderer = GetRemoteRenderer();
if (renderer) {
renderer->SendStopFrameTimeRecording(aStartIndex, &aFrameIntervals);
}
}
void
ClientLayerManager::ForwardTransaction(bool aScheduleComposite)
{
if (mForwarder->GetSyncObject()) {
mForwarder->GetSyncObject()->FinalizeFrame();
}
mPhase = PHASE_FORWARD;
mLatestTransactionId = mTransactionIdAllocator->GetTransactionId();
TimeStamp transactionStart;
if (!mTransactionIdAllocator->GetTransactionStart().IsNull()) {
transactionStart = mTransactionIdAllocator->GetTransactionStart();
} else {
transactionStart = mTransactionStart;
}
// forward this transaction's changeset to our LayerManagerComposite
bool sent;
AutoInfallibleTArray<EditReply, 10> replies;
if (mForwarder->EndTransaction(&replies, mRegionToClear,
mLatestTransactionId, aScheduleComposite, mPaintSequenceNumber,
mIsRepeatTransaction, transactionStart, &sent)) {
for (nsTArray<EditReply>::size_type i = 0; i < replies.Length(); ++i) {
const EditReply& reply = replies[i];
switch (reply.type()) {
case EditReply::TOpContentBufferSwap: {
MOZ_LAYERS_LOG(("[LayersForwarder] DoubleBufferSwap"));
const OpContentBufferSwap& obs = reply.get_OpContentBufferSwap();
CompositableClient* compositable =
CompositableClient::FromIPDLActor(obs.compositableChild());
ContentClientRemote* contentClient =
static_cast<ContentClientRemote*>(compositable);
MOZ_ASSERT(contentClient);
contentClient->SwapBuffers(obs.frontUpdatedRegion());
break;
}
case EditReply::TOpTextureSwap: {
MOZ_LAYERS_LOG(("[LayersForwarder] TextureSwap"));
const OpTextureSwap& ots = reply.get_OpTextureSwap();
CompositableClient* compositable =
CompositableClient::FromIPDLActor(ots.compositableChild());
MOZ_ASSERT(compositable);
compositable->SetDescriptorFromReply(ots.textureId(), ots.image());
break;
}
case EditReply::TReturnReleaseFence: {
const ReturnReleaseFence& rep = reply.get_ReturnReleaseFence();
FenceHandle fence = rep.fence();
PTextureChild* child = rep.textureChild();
if (!fence.IsValid() || !child) {
break;
}
RefPtr<TextureClient> texture = TextureClient::AsTextureClient(child);
if (texture) {
texture->SetReleaseFenceHandle(fence);
}
break;
}
default:
NS_RUNTIMEABORT("not reached");
}
}
if (sent) {
mNeedsComposite = false;
}
} else if (HasShadowManager()) {
NS_WARNING("failed to forward Layers transaction");
}
if (!sent) {
// Clear the transaction id so that it doesn't get returned
// unless we forwarded to somewhere that doesn't actually
// have a compositor.
mTransactionIdAllocator->RevokeTransactionId(mLatestTransactionId);
}
mForwarder->RemoveTexturesIfNecessary();
mForwarder->SendPendingAsyncMessges();
mPhase = PHASE_NONE;
// this may result in Layers being deleted, which results in
// PLayer::Send__delete__() and DeallocShmem()
mKeepAlive.Clear();
}
ShadowableLayer*
ClientLayerManager::Hold(Layer* aLayer)
{
MOZ_ASSERT(HasShadowManager(),
"top-level tree, no shadow tree to remote to");
ShadowableLayer* shadowable = ClientLayer::ToClientLayer(aLayer);
MOZ_ASSERT(shadowable, "trying to remote an unshadowable layer");
mKeepAlive.AppendElement(aLayer);
return shadowable;
}
bool
ClientLayerManager::IsCompositingCheap()
{
// Whether compositing is cheap depends on the parent backend.
return mForwarder->mShadowManager &&
LayerManager::IsCompositingCheap(mForwarder->GetCompositorBackendType());
}
bool
ClientLayerManager::AreComponentAlphaLayersEnabled()
{
return GetCompositorBackendType() != LayersBackend::LAYERS_BASIC &&
LayerManager::AreComponentAlphaLayersEnabled();
}
void
ClientLayerManager::SetIsFirstPaint()
{
mForwarder->SetIsFirstPaint();
}
TextureClientPool*
ClientLayerManager::GetTexturePool(SurfaceFormat aFormat)
{
for (size_t i = 0; i < mTexturePools.Length(); i++) {
if (mTexturePools[i]->GetFormat() == aFormat) {
return mTexturePools[i];
}
}
mTexturePools.AppendElement(
new TextureClientPool(aFormat, IntSize(gfxPlatform::GetPlatform()->GetTileWidth(),
gfxPlatform::GetPlatform()->GetTileHeight()),
gfxPrefs::LayersTileMaxPoolSize(),
gfxPrefs::LayersTileShrinkPoolTimeout(),
mForwarder));
return mTexturePools.LastElement();
}
void
ClientLayerManager::ReturnTextureClientDeferred(TextureClient& aClient) {
GetTexturePool(aClient.GetFormat())->ReturnTextureClientDeferred(&aClient);
}
void
ClientLayerManager::ReturnTextureClient(TextureClient& aClient) {
GetTexturePool(aClient.GetFormat())->ReturnTextureClient(&aClient);
}
void
ClientLayerManager::ReportClientLost(TextureClient& aClient) {
GetTexturePool(aClient.GetFormat())->ReportClientLost();
}
void
ClientLayerManager::ClearCachedResources(Layer* aSubtree)
{
if (mDestroyed) {
// ClearCachedResource was already called by ClientLayerManager::Destroy
return;
}
MOZ_ASSERT(!HasShadowManager() || !aSubtree);
mForwarder->ClearCachedResources();
if (aSubtree) {
ClearLayer(aSubtree);
} else if (mRoot) {
ClearLayer(mRoot);
}
for (size_t i = 0; i < mTexturePools.Length(); i++) {
mTexturePools[i]->Clear();
}
}
void
ClientLayerManager::HandleMemoryPressure()
{
for (size_t i = 0; i < mTexturePools.Length(); i++) {
mTexturePools[i]->ShrinkToMinimumSize();
}
}
void
ClientLayerManager::ClearLayer(Layer* aLayer)
{
ClientLayer::ToClientLayer(aLayer)->ClearCachedResources();
for (Layer* child = aLayer->GetFirstChild(); child;
child = child->GetNextSibling()) {
ClearLayer(child);
}
}
void
ClientLayerManager::GetBackendName(nsAString& aName)
{
switch (mForwarder->GetCompositorBackendType()) {
case LayersBackend::LAYERS_BASIC: aName.AssignLiteral("Basic"); return;
case LayersBackend::LAYERS_OPENGL: aName.AssignLiteral("OpenGL"); return;
case LayersBackend::LAYERS_D3D9: aName.AssignLiteral("Direct3D 9"); return;
case LayersBackend::LAYERS_D3D10: aName.AssignLiteral("Direct3D 10"); return;
case LayersBackend::LAYERS_D3D11: {
#ifdef XP_WIN
if (gfxWindowsPlatform::GetPlatform()->IsWARP()) {
aName.AssignLiteral("Direct3D 11 WARP");
} else {
aName.AssignLiteral("Direct3D 11");
}
#endif
return;
}
default: NS_RUNTIMEABORT("Invalid backend");
}
}
bool
ClientLayerManager::ProgressiveUpdateCallback(bool aHasPendingNewThebesContent,
FrameMetrics& aMetrics,
bool aDrawingCritical)
{
#ifdef MOZ_WIDGET_ANDROID
MOZ_ASSERT(aMetrics.IsScrollable());
// This is derived from the code in
// gfx/layers/ipc/CompositorParent.cpp::TransformShadowTree.
CSSToLayerScale paintScale = aMetrics.LayersPixelsPerCSSPixel();
const CSSRect& metricsDisplayPort =
(aDrawingCritical && !aMetrics.GetCriticalDisplayPort().IsEmpty()) ?
aMetrics.GetCriticalDisplayPort() : aMetrics.GetDisplayPort();
LayerRect displayPort = (metricsDisplayPort + aMetrics.GetScrollOffset()) * paintScale;
ParentLayerPoint scrollOffset;
CSSToParentLayerScale zoom;
bool ret = AndroidBridge::Bridge()->ProgressiveUpdateCallback(
aHasPendingNewThebesContent, displayPort, paintScale.scale, aDrawingCritical,
scrollOffset, zoom);
aMetrics.SetScrollOffset(scrollOffset / zoom);
aMetrics.SetZoom(zoom);
return ret;
#else
return false;
#endif
}
ClientLayer::~ClientLayer()
{
if (HasShadow()) {
PLayerChild::Send__delete__(GetShadow());
}
MOZ_COUNT_DTOR(ClientLayer);
}
} // layers
} // mozilla
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