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gecko-dev/gfx/layers/ipc/CompositorBridgeParent.cpp

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/* -*- 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 "mozilla/layers/CompositorBridgeParent.h"
#include <stdio.h> // for fprintf, stdout
#include <stdint.h> // for uint64_t
#include <map> // for _Rb_tree_iterator, etc
#include <utility> // for pair
#include "apz/src/APZCTreeManager.h" // for APZCTreeManager
#include "LayerTransactionParent.h" // for LayerTransactionParent
#include "RenderTrace.h" // for RenderTraceLayers
#include "base/message_loop.h" // for MessageLoop
#include "base/process.h" // for ProcessId
#include "base/task.h" // for CancelableTask, etc
#include "base/thread.h" // for Thread
#include "gfxContext.h" // for gfxContext
#include "gfxPlatform.h" // for gfxPlatform
#include "TreeTraversal.h" // for ForEachNode
#ifdef MOZ_WIDGET_GTK
# include "gfxPlatformGtk.h" // for gfxPlatform
#endif
#include "gfxPrefs.h" // for gfxPrefs
#include "mozilla/AutoRestore.h" // for AutoRestore
#include "mozilla/ClearOnShutdown.h" // for ClearOnShutdown
#include "mozilla/DebugOnly.h" // for DebugOnly
#include "mozilla/dom/BrowserParent.h"
#include "mozilla/gfx/2D.h" // for DrawTarget
#include "mozilla/gfx/GPUChild.h" // for GfxPrefValue
#include "mozilla/gfx/Point.h" // for IntSize
#include "mozilla/gfx/Rect.h" // for IntSize
#include "mozilla/gfx/gfxVars.h" // for gfxVars
#include "VRManager.h" // for VRManager
#include "mozilla/ipc/Transport.h" // for Transport
#include "mozilla/gfx/gfxVars.h"
#include "mozilla/gfx/GPUParent.h"
#include "mozilla/layers/AnimationHelper.h" // for CompositorAnimationStorage
#include "mozilla/layers/APZCTreeManagerParent.h" // for APZCTreeManagerParent
#include "mozilla/layers/APZSampler.h" // for APZSampler
#include "mozilla/layers/APZThreadUtils.h" // for APZThreadUtils
#include "mozilla/layers/APZUpdater.h" // for APZUpdater
#include "mozilla/layers/AsyncCompositionManager.h"
#include "mozilla/layers/BasicCompositor.h" // for BasicCompositor
#include "mozilla/layers/CompositionRecorder.h" // for CompositionRecorder
#include "mozilla/layers/Compositor.h" // for Compositor
#include "mozilla/layers/CompositorManagerParent.h" // for CompositorManagerParent
#include "mozilla/layers/CompositorOGL.h" // for CompositorOGL
#include "mozilla/layers/CompositorThread.h"
#include "mozilla/layers/CompositorTypes.h"
#include "mozilla/layers/CompositorVsyncScheduler.h"
#include "mozilla/layers/ContentCompositorBridgeParent.h"
#include "mozilla/layers/FrameUniformityData.h"
#include "mozilla/layers/ImageBridgeParent.h"
#include "mozilla/layers/LayerManagerComposite.h"
#include "mozilla/layers/LayerManagerMLGPU.h"
#include "mozilla/layers/LayerTreeOwnerTracker.h"
#include "mozilla/layers/LayersTypes.h"
#include "mozilla/layers/PLayerTransactionParent.h"
#include "mozilla/layers/RemoteContentController.h"
#include "mozilla/layers/WebRenderBridgeParent.h"
#include "mozilla/layers/AsyncImagePipelineManager.h"
#include "mozilla/webrender/WebRenderAPI.h"
#include "mozilla/media/MediaSystemResourceService.h" // for MediaSystemResourceService
#include "mozilla/mozalloc.h" // for operator new, etc
#include "mozilla/Telemetry.h"
#ifdef MOZ_WIDGET_GTK
# include "basic/X11BasicCompositor.h" // for X11BasicCompositor
#endif
#include "nsCOMPtr.h" // for already_AddRefed
#include "nsDebug.h" // for NS_ASSERTION, etc
#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc
#include "nsIWidget.h" // for nsIWidget
#include "nsTArray.h" // for nsTArray
#include "nsThreadUtils.h" // for NS_IsMainThread
#include "nsXULAppAPI.h" // for XRE_GetIOMessageLoop
#ifdef XP_WIN
# include "mozilla/layers/CompositorD3D11.h"
# include "mozilla/widget/WinCompositorWidget.h"
#endif
#include "GeckoProfiler.h"
#include "mozilla/ipc/ProtocolTypes.h"
#include "mozilla/Unused.h"
#include "mozilla/Hal.h"
#include "mozilla/HalTypes.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/Telemetry.h"
#ifdef MOZ_GECKO_PROFILER
# include "ProfilerMarkerPayload.h"
#endif
#include "mozilla/VsyncDispatcher.h"
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
# include "VsyncSource.h"
#endif
#include "mozilla/widget/CompositorWidget.h"
#ifdef MOZ_WIDGET_SUPPORTS_OOP_COMPOSITING
# include "mozilla/widget/CompositorWidgetParent.h"
#endif
#ifdef XP_WIN
# include "mozilla/gfx/DeviceManagerDx.h"
#endif
#include "LayerScope.h"
namespace mozilla {
namespace layers {
using namespace mozilla::ipc;
using namespace mozilla::gfx;
using namespace std;
using base::ProcessId;
using base::Thread;
using mozilla::Telemetry::LABELS_CONTENT_FRAME_TIME_REASON;
/// Equivalent to asserting CompositorThreadHolder::IsInCompositorThread with
/// the addition that it doesn't assert if the compositor thread holder is
/// already gone during late shutdown.
static void AssertIsInCompositorThread() {
MOZ_RELEASE_ASSERT(!CompositorThread() ||
CompositorThreadHolder::IsInCompositorThread());
}
CompositorBridgeParentBase::CompositorBridgeParentBase(
CompositorManagerParent* aManager)
: mCanSend(true), mCompositorManager(aManager) {}
CompositorBridgeParentBase::~CompositorBridgeParentBase() {}
ProcessId CompositorBridgeParentBase::GetChildProcessId() { return OtherPid(); }
void CompositorBridgeParentBase::NotifyNotUsed(PTextureParent* aTexture,
uint64_t aTransactionId) {
RefPtr<TextureHost> texture = TextureHost::AsTextureHost(aTexture);
if (!texture) {
return;
}
if (!(texture->GetFlags() & TextureFlags::RECYCLE)) {
return;
}
uint64_t textureId = TextureHost::GetTextureSerial(aTexture);
mPendingAsyncMessage.push_back(OpNotifyNotUsed(textureId, aTransactionId));
}
void CompositorBridgeParentBase::SendAsyncMessage(
const InfallibleTArray<AsyncParentMessageData>& aMessage) {
Unused << SendParentAsyncMessages(aMessage);
}
bool CompositorBridgeParentBase::AllocShmem(
size_t aSize, ipc::SharedMemory::SharedMemoryType aType,
ipc::Shmem* aShmem) {
return PCompositorBridgeParent::AllocShmem(aSize, aType, aShmem);
}
bool CompositorBridgeParentBase::AllocUnsafeShmem(
size_t aSize, ipc::SharedMemory::SharedMemoryType aType,
ipc::Shmem* aShmem) {
return PCompositorBridgeParent::AllocUnsafeShmem(aSize, aType, aShmem);
}
void CompositorBridgeParentBase::DeallocShmem(ipc::Shmem& aShmem) {
PCompositorBridgeParent::DeallocShmem(aShmem);
}
static inline MessageLoop* CompositorLoop() {
return CompositorThreadHolder::Loop();
}
base::ProcessId CompositorBridgeParentBase::RemotePid() { return OtherPid(); }
bool CompositorBridgeParentBase::StartSharingMetrics(
ipc::SharedMemoryBasic::Handle aHandle,
CrossProcessMutexHandle aMutexHandle, LayersId aLayersId,
uint32_t aApzcId) {
if (!CompositorThreadHolder::IsInCompositorThread()) {
MOZ_ASSERT(CompositorLoop());
CompositorLoop()->PostTask(
NewRunnableMethod<ipc::SharedMemoryBasic::Handle,
CrossProcessMutexHandle, LayersId, uint32_t>(
"layers::CompositorBridgeParent::StartSharingMetrics", this,
&CompositorBridgeParentBase::StartSharingMetrics, aHandle,
aMutexHandle, aLayersId, aApzcId));
return true;
}
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
if (!mCanSend) {
return false;
}
return PCompositorBridgeParent::SendSharedCompositorFrameMetrics(
aHandle, aMutexHandle, aLayersId, aApzcId);
}
bool CompositorBridgeParentBase::StopSharingMetrics(
ScrollableLayerGuid::ViewID aScrollId, uint32_t aApzcId) {
if (!CompositorThreadHolder::IsInCompositorThread()) {
MOZ_ASSERT(CompositorLoop());
CompositorLoop()->PostTask(
NewRunnableMethod<ScrollableLayerGuid::ViewID, uint32_t>(
"layers::CompositorBridgeParent::StopSharingMetrics", this,
&CompositorBridgeParentBase::StopSharingMetrics, aScrollId,
aApzcId));
return true;
}
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
if (!mCanSend) {
return false;
}
return PCompositorBridgeParent::SendReleaseSharedCompositorFrameMetrics(
aScrollId, aApzcId);
}
CompositorBridgeParent::LayerTreeState::LayerTreeState()
: mApzcTreeManagerParent(nullptr),
mParent(nullptr),
mLayerManager(nullptr),
mContentCompositorBridgeParent(nullptr),
mLayerTree(nullptr),
mUpdatedPluginDataAvailable(false) {}
CompositorBridgeParent::LayerTreeState::~LayerTreeState() {
if (mController) {
mController->Destroy();
}
}
typedef map<LayersId, CompositorBridgeParent::LayerTreeState> LayerTreeMap;
LayerTreeMap sIndirectLayerTrees;
StaticAutoPtr<mozilla::Monitor> sIndirectLayerTreesLock;
static void EnsureLayerTreeMapReady() {
MOZ_ASSERT(NS_IsMainThread());
if (!sIndirectLayerTreesLock) {
sIndirectLayerTreesLock = new Monitor("IndirectLayerTree");
mozilla::ClearOnShutdown(&sIndirectLayerTreesLock);
}
}
template <typename Lambda>
inline void CompositorBridgeParent::ForEachIndirectLayerTree(
const Lambda& aCallback) {
sIndirectLayerTreesLock->AssertCurrentThreadOwns();
for (auto it = sIndirectLayerTrees.begin(); it != sIndirectLayerTrees.end();
it++) {
LayerTreeState* state = &it->second;
if (state->mParent == this) {
aCallback(state, it->first);
}
}
}
/**
* A global map referencing each compositor by ID.
*
* This map is used by the ImageBridge protocol to trigger
* compositions without having to keep references to the
* compositor
*/
typedef map<uint64_t, CompositorBridgeParent*> CompositorMap;
static StaticAutoPtr<CompositorMap> sCompositorMap;
void CompositorBridgeParent::Setup() {
EnsureLayerTreeMapReady();
MOZ_ASSERT(!sCompositorMap);
sCompositorMap = new CompositorMap;
}
void CompositorBridgeParent::FinishShutdown() {
MOZ_ASSERT(NS_IsMainThread());
if (sCompositorMap) {
MOZ_ASSERT(sCompositorMap->empty());
sCompositorMap = nullptr;
}
// TODO: this should be empty by now...
sIndirectLayerTrees.clear();
}
#ifdef COMPOSITOR_PERFORMANCE_WARNING
static int32_t CalculateCompositionFrameRate() {
// Used when layout.frame_rate is -1. Needs to be kept in sync with
// DEFAULT_FRAME_RATE in nsRefreshDriver.cpp.
// TODO: This should actually return the vsync rate.
const int32_t defaultFrameRate = 60;
int32_t compositionFrameRatePref = gfxPrefs::LayersCompositionFrameRate();
if (compositionFrameRatePref < 0) {
// Use the same frame rate for composition as for layout.
int32_t layoutFrameRatePref = gfxPrefs::LayoutFrameRate();
if (layoutFrameRatePref < 0) {
// TODO: The main thread frame scheduling code consults the actual
// monitor refresh rate in this case. We should do the same.
return defaultFrameRate;
}
return layoutFrameRatePref;
}
return compositionFrameRatePref;
}
#endif
CompositorBridgeParent::CompositorBridgeParent(
CompositorManagerParent* aManager, CSSToLayoutDeviceScale aScale,
const TimeDuration& aVsyncRate, const CompositorOptions& aOptions,
bool aUseExternalSurfaceSize, const gfx::IntSize& aSurfaceSize)
: CompositorBridgeParentBase(aManager),
mWidget(nullptr),
mScale(aScale),
mVsyncRate(aVsyncRate),
mPendingTransaction{0},
mPaused(false),
mUseExternalSurfaceSize(aUseExternalSurfaceSize),
mEGLSurfaceSize(aSurfaceSize),
mOptions(aOptions),
mPauseCompositionMonitor("PauseCompositionMonitor"),
mResumeCompositionMonitor("ResumeCompositionMonitor"),
mCompositorBridgeID(0),
mRootLayerTreeID{0},
mOverrideComposeReadiness(false),
mForceCompositionTask(nullptr),
mCompositorScheduler(nullptr),
mAnimationStorage(nullptr),
mPaintTime(TimeDuration::Forever())
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
,
mLastPluginUpdateLayerTreeId{0},
mDeferPluginWindows(false),
mPluginWindowsHidden(false)
#endif
{
}
void CompositorBridgeParent::InitSameProcess(widget::CompositorWidget* aWidget,
const LayersId& aLayerTreeId) {
MOZ_ASSERT(XRE_IsParentProcess() || recordreplay::IsRecordingOrReplaying());
MOZ_ASSERT(NS_IsMainThread());
mWidget = aWidget;
mRootLayerTreeID = aLayerTreeId;
Initialize();
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvInitialize(
const LayersId& aRootLayerTreeId) {
MOZ_ASSERT(XRE_IsGPUProcess());
mRootLayerTreeID = aRootLayerTreeId;
Initialize();
return IPC_OK();
}
void CompositorBridgeParent::Initialize() {
MOZ_ASSERT(CompositorThread(),
"The compositor thread must be Initialized before instanciating a "
"CompositorBridgeParent.");
if (mOptions.UseAPZ()) {
MOZ_ASSERT(!mApzcTreeManager);
MOZ_ASSERT(!mApzSampler);
MOZ_ASSERT(!mApzUpdater);
mApzcTreeManager = new APZCTreeManager(mRootLayerTreeID);
mApzSampler = new APZSampler(mApzcTreeManager, mOptions.UseWebRender());
mApzUpdater = new APZUpdater(mApzcTreeManager, mOptions.UseWebRender());
}
mPaused = mOptions.InitiallyPaused();
mCompositorBridgeID = 0;
// FIXME: This holds on the the fact that right now the only thing that
// can destroy this instance is initialized on the compositor thread after
// this task has been processed.
MOZ_ASSERT(CompositorLoop());
CompositorLoop()->PostTask(NewRunnableFunction(
"AddCompositorRunnable", &AddCompositor, this, &mCompositorBridgeID));
{ // scope lock
MonitorAutoLock lock(*sIndirectLayerTreesLock);
sIndirectLayerTrees[mRootLayerTreeID].mParent = this;
}
LayerScope::SetPixelScale(mScale.scale);
if (!mOptions.UseWebRender()) {
mCompositorScheduler = new CompositorVsyncScheduler(this, mWidget);
}
}
LayersId CompositorBridgeParent::RootLayerTreeId() {
MOZ_ASSERT(mRootLayerTreeID.IsValid());
return mRootLayerTreeID;
}
CompositorBridgeParent::~CompositorBridgeParent() {
InfallibleTArray<PTextureParent*> textures;
ManagedPTextureParent(textures);
// We expect all textures to be destroyed by now.
MOZ_DIAGNOSTIC_ASSERT(textures.Length() == 0);
for (unsigned int i = 0; i < textures.Length(); ++i) {
RefPtr<TextureHost> tex = TextureHost::AsTextureHost(textures[i]);
tex->DeallocateDeviceData();
}
}
void CompositorBridgeParent::ForceIsFirstPaint() {
if (mWrBridge) {
mWrBridge->ForceIsFirstPaint();
} else {
mCompositionManager->ForceIsFirstPaint();
}
}
void CompositorBridgeParent::StopAndClearResources() {
if (mForceCompositionTask) {
mForceCompositionTask->Cancel();
mForceCompositionTask = nullptr;
}
mPaused = true;
// We need to clear the APZ tree before we destroy the WebRender API below,
// because in the case of async scene building that will shut down the updater
// thread and we need to run the task before that happens.
MOZ_ASSERT((mApzSampler != nullptr) == (mApzcTreeManager != nullptr));
MOZ_ASSERT((mApzUpdater != nullptr) == (mApzcTreeManager != nullptr));
if (mApzUpdater) {
mApzSampler->Destroy();
mApzSampler = nullptr;
mApzUpdater->ClearTree(mRootLayerTreeID);
mApzUpdater = nullptr;
mApzcTreeManager = nullptr;
}
// Ensure that the layer manager is destroyed before CompositorBridgeChild.
if (mLayerManager) {
MonitorAutoLock lock(*sIndirectLayerTreesLock);
ForEachIndirectLayerTree([this](LayerTreeState* lts, LayersId) -> void {
mLayerManager->ClearCachedResources(lts->mRoot);
lts->mLayerManager = nullptr;
lts->mParent = nullptr;
});
mLayerManager->Destroy();
mLayerManager = nullptr;
mCompositionManager = nullptr;
}
if (mWrBridge) {
// Ensure we are not holding the sIndirectLayerTreesLock when destroying
// the WebRenderBridgeParent instances because it may block on WR.
std::vector<RefPtr<WebRenderBridgeParent>> indirectBridgeParents;
{ // scope lock
MonitorAutoLock lock(*sIndirectLayerTreesLock);
ForEachIndirectLayerTree([&](LayerTreeState* lts, LayersId) -> void {
if (lts->mWrBridge) {
indirectBridgeParents.emplace_back(lts->mWrBridge.forget());
}
lts->mParent = nullptr;
});
}
for (const RefPtr<WebRenderBridgeParent>& bridge : indirectBridgeParents) {
bridge->Destroy();
}
indirectBridgeParents.clear();
RefPtr<wr::WebRenderAPI> api =
mWrBridge->GetWebRenderAPI(wr::RenderRoot::Default);
// Ensure we are not holding the sIndirectLayerTreesLock here because we
// are going to block on WR threads in order to shut it down properly.
mWrBridge->Destroy();
mWrBridge = nullptr;
if (api) {
// Make extra sure we are done cleaning WebRender up before continuing.
// After that we wont have a way to talk to a lot of the webrender parts.
api->FlushSceneBuilder();
api = nullptr;
}
if (mAsyncImageManager) {
mAsyncImageManager->Destroy();
// WebRenderAPI should be already destructed
mAsyncImageManager = nullptr;
}
}
if (mCompositor) {
mCompositor->DetachWidget();
mCompositor->Destroy();
mCompositor = nullptr;
}
// This must be destroyed now since it accesses the widget.
if (mCompositorScheduler) {
mCompositorScheduler->Destroy();
mCompositorScheduler = nullptr;
}
// After this point, it is no longer legal to access the widget.
mWidget = nullptr;
// Clear mAnimationStorage here to ensure that the compositor thread
// still exists when we destroy it.
mAnimationStorage = nullptr;
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvWillClose() {
StopAndClearResources();
// Once we get the WillClose message, the client side is going to go away
// soon and we can't be guaranteed that sending messages will work.
mCanSend = false;
return IPC_OK();
}
void CompositorBridgeParent::DeferredDestroy() {
MOZ_ASSERT(!NS_IsMainThread());
mSelfRef = nullptr;
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvPause() {
PauseComposition();
return IPC_OK();
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvResume() {
ResumeComposition();
return IPC_OK();
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvMakeSnapshot(
const SurfaceDescriptor& aInSnapshot, const gfx::IntRect& aRect) {
RefPtr<DrawTarget> target =
GetDrawTargetForDescriptor(aInSnapshot, gfx::BackendType::CAIRO);
MOZ_ASSERT(target);
if (!target) {
// We kill the content process rather than have it continue with an invalid
// snapshot, that may be too harsh and we could decide to return some sort
// of error to the child process and let it deal with it...
return IPC_FAIL_NO_REASON(this);
}
ForceComposeToTarget(target, &aRect);
return IPC_OK();
}
mozilla::ipc::IPCResult
CompositorBridgeParent::RecvWaitOnTransactionProcessed() {
return IPC_OK();
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvFlushRendering() {
if (mWrBridge) {
mWrBridge->FlushRendering();
return IPC_OK();
}
if (mCompositorScheduler->NeedsComposite()) {
CancelCurrentCompositeTask();
ForceComposeToTarget(nullptr);
}
return IPC_OK();
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvFlushRenderingAsync() {
if (mWrBridge) {
mWrBridge->FlushRendering(false);
return IPC_OK();
}
return RecvFlushRendering();
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvForcePresent() {
if (mWrBridge) {
mWrBridge->ScheduleForcedGenerateFrame();
}
// During the shutdown sequence mLayerManager may be null
if (mLayerManager) {
mLayerManager->ForcePresent();
}
return IPC_OK();
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvNotifyRegionInvalidated(
const nsIntRegion& aRegion) {
if (mLayerManager) {
mLayerManager->AddInvalidRegion(aRegion);
}
return IPC_OK();
}
void CompositorBridgeParent::Invalidate() {
if (mLayerManager) {
mLayerManager->InvalidateAll();
}
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvStartFrameTimeRecording(
const int32_t& aBufferSize, uint32_t* aOutStartIndex) {
if (mLayerManager) {
*aOutStartIndex = mLayerManager->StartFrameTimeRecording(aBufferSize);
} else if (mWrBridge) {
*aOutStartIndex = mWrBridge->StartFrameTimeRecording(aBufferSize);
} else {
*aOutStartIndex = 0;
}
return IPC_OK();
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvStopFrameTimeRecording(
const uint32_t& aStartIndex, InfallibleTArray<float>* intervals) {
if (mLayerManager) {
mLayerManager->StopFrameTimeRecording(aStartIndex, *intervals);
} else if (mWrBridge) {
mWrBridge->StopFrameTimeRecording(aStartIndex, *intervals);
}
return IPC_OK();
}
void CompositorBridgeParent::ActorDestroy(ActorDestroyReason why) {
mCanSend = false;
StopAndClearResources();
RemoveCompositor(mCompositorBridgeID);
mCompositionManager = nullptr;
{ // scope lock
MonitorAutoLock lock(*sIndirectLayerTreesLock);
sIndirectLayerTrees.erase(mRootLayerTreeID);
}
// There are chances that the ref count reaches zero on the main thread
// shortly after this function returns while some ipdl code still needs to run
// on this thread. We must keep the compositor parent alive untill the code
// handling message reception is finished on this thread.
mSelfRef = this;
MessageLoop::current()->PostTask(
NewRunnableMethod("layers::CompositorBridgeParent::DeferredDestroy", this,
&CompositorBridgeParent::DeferredDestroy));
}
void CompositorBridgeParent::ScheduleRenderOnCompositorThread(
const wr::RenderRootSet& aRenderRoots) {
MOZ_ASSERT(CompositorLoop());
CompositorLoop()->PostTask(NewRunnableMethod<wr::RenderRootSet>(
"layers::CompositorBridgeParent::ScheduleComposition", this,
&CompositorBridgeParent::ScheduleComposition, aRenderRoots));
}
void CompositorBridgeParent::InvalidateOnCompositorThread() {
MOZ_ASSERT(CompositorLoop());
CompositorLoop()->PostTask(
NewRunnableMethod("layers::CompositorBridgeParent::Invalidate", this,
&CompositorBridgeParent::Invalidate));
}
void CompositorBridgeParent::PauseComposition() {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread(),
"PauseComposition() can only be called on the compositor thread");
MonitorAutoLock lock(mPauseCompositionMonitor);
if (!mPaused) {
mPaused = true;
TimeStamp now = TimeStamp::Now();
if (mCompositor) {
mCompositor->Pause();
DidComposite(VsyncId(), now, now);
} else if (mWrBridge) {
mWrBridge->Pause();
NotifyPipelineRendered(mWrBridge->PipelineId(),
mWrBridge->GetCurrentEpoch(), VsyncId(), now, now,
now);
}
}
// if anyone's waiting to make sure that composition really got paused, tell
// them
lock.NotifyAll();
}
void CompositorBridgeParent::ResumeComposition() {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread(),
"ResumeComposition() can only be called on the compositor thread");
MonitorAutoLock lock(mResumeCompositionMonitor);
bool resumed =
mOptions.UseWebRender() ? mWrBridge->Resume() : mCompositor->Resume();
if (!resumed) {
#ifdef MOZ_WIDGET_ANDROID
// We can't get a surface. This could be because the activity changed
// between the time resume was scheduled and now.
__android_log_print(
ANDROID_LOG_INFO, "CompositorBridgeParent",
"Unable to renew compositor surface; remaining in paused state");
#endif
lock.NotifyAll();
return;
}
mPaused = false;
Invalidate();
mCompositorScheduler->ForceComposeToTarget(nullptr, nullptr);
// if anyone's waiting to make sure that composition really got resumed, tell
// them
lock.NotifyAll();
}
void CompositorBridgeParent::ForceComposition() {
// Cancel the orientation changed state to force composition
mForceCompositionTask = nullptr;
ScheduleRenderOnCompositorThread(wr::RenderRootSet());
}
void CompositorBridgeParent::CancelCurrentCompositeTask() {
mCompositorScheduler->CancelCurrentCompositeTask();
}
void CompositorBridgeParent::SetEGLSurfaceRect(int x, int y, int width,
int height) {
NS_ASSERTION(mUseExternalSurfaceSize,
"Compositor created without UseExternalSurfaceSize provided");
mEGLSurfaceSize.SizeTo(width, height);
if (mCompositor) {
mCompositor->SetDestinationSurfaceSize(
gfx::IntSize(mEGLSurfaceSize.width, mEGLSurfaceSize.height));
if (mCompositor->AsCompositorOGL()) {
mCompositor->AsCompositorOGL()->SetSurfaceOrigin(ScreenIntPoint(x, y));
}
}
}
void CompositorBridgeParent::ResumeCompositionAndResize(int x, int y, int width,
int height) {
SetEGLSurfaceRect(x, y, width, height);
ResumeComposition();
}
/*
* This will execute a pause synchronously, waiting to make sure that the
* compositor really is paused.
*/
void CompositorBridgeParent::SchedulePauseOnCompositorThread() {
MonitorAutoLock lock(mPauseCompositionMonitor);
MOZ_ASSERT(CompositorLoop());
CompositorLoop()->PostTask(
NewRunnableMethod("layers::CompositorBridgeParent::PauseComposition",
this, &CompositorBridgeParent::PauseComposition));
// Wait until the pause has actually been processed by the compositor thread
lock.Wait();
}
bool CompositorBridgeParent::ScheduleResumeOnCompositorThread() {
MonitorAutoLock lock(mResumeCompositionMonitor);
MOZ_ASSERT(CompositorLoop());
CompositorLoop()->PostTask(
NewRunnableMethod("layers::CompositorBridgeParent::ResumeComposition",
this, &CompositorBridgeParent::ResumeComposition));
// Wait until the resume has actually been processed by the compositor thread
lock.Wait();
return !mPaused;
}
bool CompositorBridgeParent::ScheduleResumeOnCompositorThread(int x, int y,
int width,
int height) {
MonitorAutoLock lock(mResumeCompositionMonitor);
MOZ_ASSERT(CompositorLoop());
CompositorLoop()->PostTask(NewRunnableMethod<int, int, int, int>(
"layers::CompositorBridgeParent::ResumeCompositionAndResize", this,
&CompositorBridgeParent::ResumeCompositionAndResize, x, y, width,
height));
// Wait until the resume has actually been processed by the compositor thread
lock.Wait();
return !mPaused;
}
void CompositorBridgeParent::ScheduleTask(
already_AddRefed<CancelableRunnable> task, int time) {
if (time == 0) {
MessageLoop::current()->PostTask(std::move(task));
} else {
MessageLoop::current()->PostDelayedTask(std::move(task), time);
}
}
void CompositorBridgeParent::UpdatePaintTime(LayerTransactionParent* aLayerTree,
const TimeDuration& aPaintTime) {
// We get a lot of paint timings for things with empty transactions.
if (!mLayerManager || aPaintTime.ToMilliseconds() < 1.0) {
return;
}
mLayerManager->SetPaintTime(aPaintTime);
}
void CompositorBridgeParent::RegisterPayload(
LayerTransactionParent* aLayerTree,
const InfallibleTArray<CompositionPayload>& aPayload) {
// We get a lot of paint timings for things with empty transactions.
if (!mLayerManager) {
return;
}
mLayerManager->RegisterPayload(aPayload);
}
void CompositorBridgeParent::NotifyShadowTreeTransaction(
LayersId aId, bool aIsFirstPaint, const FocusTarget& aFocusTarget,
bool aScheduleComposite, uint32_t aPaintSequenceNumber,
bool aIsRepeatTransaction, bool aHitTestUpdate) {
if (!aIsRepeatTransaction && mLayerManager && mLayerManager->GetRoot()) {
// Process plugin data here to give time for them to update before the next
// composition.
bool pluginsUpdatedFlag = true;
AutoResolveRefLayers resolve(mCompositionManager, this, nullptr,
&pluginsUpdatedFlag);
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
// If plugins haven't been updated, stop waiting.
if (!pluginsUpdatedFlag) {
mWaitForPluginsUntil = TimeStamp();
mHaveBlockedForPlugins = false;
}
#endif
if (mApzUpdater) {
mApzUpdater->UpdateFocusState(mRootLayerTreeID,
WRRootId::NonWebRender(aId), aFocusTarget);
if (aHitTestUpdate) {
mApzUpdater->UpdateHitTestingTree(
mRootLayerTreeID, mLayerManager->GetRoot(), aIsFirstPaint, aId,
aPaintSequenceNumber);
}
}
mLayerManager->NotifyShadowTreeTransaction();
}
if (aScheduleComposite) {
ScheduleComposition();
}
}
void CompositorBridgeParent::ScheduleComposition(
const wr::RenderRootSet& aRenderRoots) {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
if (mPaused) {
return;
}
if (mWrBridge) {
mWrBridge->ScheduleGenerateFrame(aRenderRoots);
} else {
mCompositorScheduler->ScheduleComposition();
}
}
// Go down the composite layer tree, setting properties to match their
// content-side counterparts.
/* static */
void CompositorBridgeParent::SetShadowProperties(Layer* aLayer) {
ForEachNode<ForwardIterator>(aLayer, [](Layer* layer) {
if (Layer* maskLayer = layer->GetMaskLayer()) {
SetShadowProperties(maskLayer);
}
for (size_t i = 0; i < layer->GetAncestorMaskLayerCount(); i++) {
SetShadowProperties(layer->GetAncestorMaskLayerAt(i));
}
// FIXME: Bug 717688 -- Do these updates in
// LayerTransactionParent::RecvUpdate.
HostLayer* layerCompositor = layer->AsHostLayer();
// Set the layerComposite's base transform to the layer's base transform.
const auto& animations = layer->GetPropertyAnimationGroups();
// If there is any animation, the animation value will override
// non-animated value later, so we don't need to set the non-animated
// value here.
if (animations.IsEmpty()) {
layerCompositor->SetShadowBaseTransform(layer->GetBaseTransform());
layerCompositor->SetShadowTransformSetByAnimation(false);
layerCompositor->SetShadowOpacity(layer->GetOpacity());
layerCompositor->SetShadowOpacitySetByAnimation(false);
}
layerCompositor->SetShadowVisibleRegion(layer->GetVisibleRegion());
layerCompositor->SetShadowClipRect(layer->GetClipRect());
});
}
void CompositorBridgeParent::CompositeToTarget(VsyncId aId, DrawTarget* aTarget,
const gfx::IntRect* aRect) {
AUTO_PROFILER_TRACING("Paint", "Composite", GRAPHICS);
AUTO_PROFILER_LABEL("CompositorBridgeParent::CompositeToTarget", GRAPHICS);
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread(),
"Composite can only be called on the compositor thread");
TimeStamp start = TimeStamp::Now();
if (!CanComposite()) {
TimeStamp end = TimeStamp::Now();
DidComposite(aId, start, end);
return;
}
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
if (!mWaitForPluginsUntil.IsNull() && mWaitForPluginsUntil > start) {
mHaveBlockedForPlugins = true;
ScheduleComposition();
return;
}
#endif
/*
* AutoResolveRefLayers handles two tasks related to Windows and Linux
* plugin window management:
* 1) calculating if we have remote content in the view. If we do not have
* remote content, all plugin windows for this CompositorBridgeParent (window)
* can be hidden since we do not support plugins in chrome when running
* under e10s.
* 2) Updating plugin position, size, and clip. We do this here while the
* remote layer tree is hooked up to to chrome layer tree. This is needed
* since plugin clipping can depend on chrome (for example, due to tab modal
* prompts). Updates in step 2 are applied via an async ipc message sent
* to the main thread.
*/
bool hasRemoteContent = false;
bool updatePluginsFlag = true;
AutoResolveRefLayers resolve(mCompositionManager, this, &hasRemoteContent,
&updatePluginsFlag);
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
// We do not support plugins in local content. When switching tabs
// to local pages, hide every plugin associated with the window.
if (!hasRemoteContent && gfxVars::BrowserTabsRemoteAutostart() &&
mCachedPluginData.Length()) {
Unused << SendHideAllPlugins(GetWidget()->GetWidgetKey());
mCachedPluginData.Clear();
}
#endif
nsCString none;
if (aTarget) {
mLayerManager->BeginTransactionWithDrawTarget(aTarget, *aRect);
} else {
mLayerManager->BeginTransaction(none);
}
SetShadowProperties(mLayerManager->GetRoot());
if (mForceCompositionTask && !mOverrideComposeReadiness) {
if (mCompositionManager->ReadyForCompose()) {
mForceCompositionTask->Cancel();
mForceCompositionTask = nullptr;
} else {
return;
}
}
mCompositionManager->ComputeRotation();
TimeStamp time =
mTestTime.valueOr(mCompositorScheduler->GetLastComposeTime());
bool requestNextFrame =
mCompositionManager->TransformShadowTree(time, mVsyncRate);
// Don't eagerly schedule new compositions here when recording or replaying.
// Recording/replaying processes schedule composites at the top of the main
// thread's event loop rather than via PVsync, which can cause the composites
// scheduled here to pile up without any drawing actually happening.
if (requestNextFrame && !recordreplay::IsRecordingOrReplaying()) {
ScheduleComposition();
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
// If we have visible windowed plugins then we need to wait for content (and
// then the plugins) to have been updated by the active animation.
if (!mPluginWindowsHidden && mCachedPluginData.Length()) {
mWaitForPluginsUntil =
mCompositorScheduler->GetLastComposeTime() + (mVsyncRate * 2);
}
#endif
}
RenderTraceLayers(mLayerManager->GetRoot(), "0000");
#ifdef MOZ_DUMP_PAINTING
if (gfxPrefs::DumpHostLayers()) {
printf_stderr("Painting --- compositing layer tree:\n");
mLayerManager->Dump(/* aSorted = */ true);
}
#endif
mLayerManager->SetDebugOverlayWantsNextFrame(false);
mLayerManager->EndTransaction(time);
if (!aTarget) {
TimeStamp end = TimeStamp::Now();
DidComposite(aId, start, end);
}
// We're not really taking advantage of the stored composite-again-time here.
// We might be able to skip the next few composites altogether. However,
// that's a bit complex to implement and we'll get most of the advantage
// by skipping compositing when we detect there's nothing invalid. This is why
// we do "composite until" rather than "composite again at".
//
// TODO(bug 1328602) Figure out what we should do here with the render thread.
if (!mLayerManager->GetCompositeUntilTime().IsNull() ||
mLayerManager->DebugOverlayWantsNextFrame()) {
ScheduleComposition();
}
#ifdef COMPOSITOR_PERFORMANCE_WARNING
TimeDuration executionTime =
TimeStamp::Now() - mCompositorScheduler->GetLastComposeTime();
TimeDuration frameBudget = TimeDuration::FromMilliseconds(15);
int32_t frameRate = CalculateCompositionFrameRate();
if (frameRate > 0) {
frameBudget = TimeDuration::FromSeconds(1.0 / frameRate);
}
if (executionTime > frameBudget) {
printf_stderr("Compositor: Composite execution took %4.1f ms\n",
executionTime.ToMilliseconds());
}
#endif
// 0 -> Full-tilt composite
if (gfxPrefs::LayersCompositionFrameRate() == 0 ||
mLayerManager->AlwaysScheduleComposite()) {
// Special full-tilt composite mode for performance testing
ScheduleComposition();
}
// TODO(bug 1328602) Need an equivalent that works with the rende thread.
mLayerManager->SetCompositionTime(TimeStamp());
mozilla::Telemetry::AccumulateTimeDelta(mozilla::Telemetry::COMPOSITE_TIME,
start);
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvRemotePluginsReady() {
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
mWaitForPluginsUntil = TimeStamp();
if (mHaveBlockedForPlugins) {
mHaveBlockedForPlugins = false;
ForceComposeToTarget(nullptr);
} else {
ScheduleComposition();
}
return IPC_OK();
#else
MOZ_ASSERT_UNREACHABLE(
"CompositorBridgeParent::RecvRemotePluginsReady calls "
"unexpected on this platform.");
return IPC_FAIL_NO_REASON(this);
#endif
}
void CompositorBridgeParent::ForceComposeToTarget(DrawTarget* aTarget,
const gfx::IntRect* aRect) {
AUTO_PROFILER_LABEL("CompositorBridgeParent::ForceComposeToTarget", GRAPHICS);
AutoRestore<bool> override(mOverrideComposeReadiness);
mOverrideComposeReadiness = true;
mCompositorScheduler->ForceComposeToTarget(aTarget, aRect);
}
PAPZCTreeManagerParent* CompositorBridgeParent::AllocPAPZCTreeManagerParent(
const LayersId& aLayersId) {
// This should only ever get called in the GPU process.
MOZ_ASSERT(XRE_IsGPUProcess());
// We should only ever get this if APZ is enabled in this compositor.
MOZ_ASSERT(mOptions.UseAPZ());
// The mApzcTreeManager and mApzUpdater should have been created via
// RecvInitialize()
MOZ_ASSERT(mApzcTreeManager);
MOZ_ASSERT(mApzUpdater);
// The main process should pass in 0 because we assume mRootLayerTreeID
MOZ_ASSERT(!aLayersId.IsValid());
MonitorAutoLock lock(*sIndirectLayerTreesLock);
CompositorBridgeParent::LayerTreeState& state =
sIndirectLayerTrees[mRootLayerTreeID];
MOZ_ASSERT(state.mParent.get() == this);
MOZ_ASSERT(!state.mApzcTreeManagerParent);
state.mApzcTreeManagerParent = new APZCTreeManagerParent(
WRRootId(mRootLayerTreeID, wr::RenderRoot::Default), mApzcTreeManager,
mApzUpdater);
return state.mApzcTreeManagerParent;
}
bool CompositorBridgeParent::DeallocPAPZCTreeManagerParent(
PAPZCTreeManagerParent* aActor) {
delete aActor;
return true;
}
void CompositorBridgeParent::AllocateAPZCTreeManagerParent(
const MonitorAutoLock& aProofOfLayerTreeStateLock,
const WRRootId& aWrRootId, LayerTreeState& aState) {
MOZ_ASSERT(aState.mParent == this);
MOZ_ASSERT(mApzcTreeManager);
MOZ_ASSERT(mApzUpdater);
MOZ_ASSERT(!aState.mApzcTreeManagerParent);
aState.mApzcTreeManagerParent =
new APZCTreeManagerParent(aWrRootId, mApzcTreeManager, mApzUpdater);
}
PAPZParent* CompositorBridgeParent::AllocPAPZParent(const LayersId& aLayersId) {
// The main process should pass in 0 because we assume mRootLayerTreeID
MOZ_ASSERT(!aLayersId.IsValid());
RemoteContentController* controller = new RemoteContentController();
// Increment the controller's refcount before we return it. This will keep the
// controller alive until it is released by IPDL in DeallocPAPZParent.
controller->AddRef();
MonitorAutoLock lock(*sIndirectLayerTreesLock);
CompositorBridgeParent::LayerTreeState& state =
sIndirectLayerTrees[mRootLayerTreeID];
MOZ_ASSERT(!state.mController);
state.mController = controller;
return controller;
}
bool CompositorBridgeParent::DeallocPAPZParent(PAPZParent* aActor) {
RemoteContentController* controller =
static_cast<RemoteContentController*>(aActor);
controller->Release();
return true;
}
#if defined(MOZ_WIDGET_ANDROID)
AndroidDynamicToolbarAnimator*
CompositorBridgeParent::GetAndroidDynamicToolbarAnimator() {
return mApzcTreeManager ? mApzcTreeManager->GetAndroidDynamicToolbarAnimator()
: nullptr;
}
#endif
RefPtr<APZSampler> CompositorBridgeParent::GetAPZSampler() {
return mApzSampler;
}
RefPtr<APZUpdater> CompositorBridgeParent::GetAPZUpdater() {
return mApzUpdater;
}
CompositorBridgeParent*
CompositorBridgeParent::GetCompositorBridgeParentFromLayersId(
const LayersId& aLayersId) {
MonitorAutoLock lock(*sIndirectLayerTreesLock);
return sIndirectLayerTrees[aLayersId].mParent;
}
/*static*/
RefPtr<CompositorBridgeParent>
CompositorBridgeParent::GetCompositorBridgeParentFromWindowId(
const wr::WindowId& aWindowId) {
MonitorAutoLock lock(*sIndirectLayerTreesLock);
for (auto it = sIndirectLayerTrees.begin(); it != sIndirectLayerTrees.end();
it++) {
LayerTreeState* state = &it->second;
if (!state->mWrBridge) {
continue;
}
// state->mWrBridge might be a root WebRenderBridgeParent or one of a
// content process, but in either case the state->mParent will be the same.
// So we don't need to distinguish between the two.
if (RefPtr<wr::WebRenderAPI> api =
state->mWrBridge->GetWebRenderAPI(wr::RenderRoot::Default)) {
if (api->GetId() == aWindowId) {
return state->mParent;
}
}
}
return nullptr;
}
bool CompositorBridgeParent::CanComposite() {
return mLayerManager && mLayerManager->GetRoot() && !mPaused;
}
void CompositorBridgeParent::ScheduleRotationOnCompositorThread(
const TargetConfig& aTargetConfig, bool aIsFirstPaint) {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
if (!aIsFirstPaint && !mCompositionManager->IsFirstPaint() &&
mCompositionManager->RequiresReorientation(aTargetConfig.orientation())) {
if (mForceCompositionTask != nullptr) {
mForceCompositionTask->Cancel();
}
RefPtr<CancelableRunnable> task = NewCancelableRunnableMethod(
"layers::CompositorBridgeParent::ForceComposition", this,
&CompositorBridgeParent::ForceComposition);
mForceCompositionTask = task;
ScheduleTask(task.forget(), gfxPrefs::OrientationSyncMillis());
}
}
void CompositorBridgeParent::ShadowLayersUpdated(
LayerTransactionParent* aLayerTree, const TransactionInfo& aInfo,
bool aHitTestUpdate) {
const TargetConfig& targetConfig = aInfo.targetConfig();
ScheduleRotationOnCompositorThread(targetConfig, aInfo.isFirstPaint());
// Instruct the LayerManager to update its render bounds now. Since all the
// orientation change, dimension change would be done at the stage, update the
// size here is free of race condition.
mLayerManager->UpdateRenderBounds(targetConfig.naturalBounds());
mLayerManager->SetRegionToClear(targetConfig.clearRegion());
if (mLayerManager->GetCompositor()) {
mLayerManager->GetCompositor()->SetScreenRotation(targetConfig.rotation());
}
mCompositionManager->Updated(aInfo.isFirstPaint(), targetConfig);
Layer* root = aLayerTree->GetRoot();
mLayerManager->SetRoot(root);
if (mApzUpdater && !aInfo.isRepeatTransaction()) {
mApzUpdater->UpdateFocusState(mRootLayerTreeID,
WRRootId::NonWebRender(mRootLayerTreeID),
aInfo.focusTarget());
if (aHitTestUpdate) {
AutoResolveRefLayers resolve(mCompositionManager);
mApzUpdater->UpdateHitTestingTree(mRootLayerTreeID, root,
aInfo.isFirstPaint(), mRootLayerTreeID,
aInfo.paintSequenceNumber());
}
}
// The transaction ID might get reset to 1 if the page gets reloaded, see
// https://bugzilla.mozilla.org/show_bug.cgi?id=1145295#c41
// Otherwise, it should be continually increasing.
MOZ_ASSERT(aInfo.id() == TransactionId{1} ||
aInfo.id() > mPendingTransaction);
mPendingTransaction = aInfo.id();
mRefreshStartTime = aInfo.refreshStart();
mTxnStartTime = aInfo.transactionStart();
mFwdTime = aInfo.fwdTime();
RegisterPayload(aLayerTree, aInfo.payload());
if (root) {
SetShadowProperties(root);
}
if (aInfo.scheduleComposite()) {
ScheduleComposition();
if (mPaused) {
TimeStamp now = TimeStamp::Now();
DidComposite(VsyncId(), now, now);
}
}
mLayerManager->NotifyShadowTreeTransaction();
}
void CompositorBridgeParent::ScheduleComposite(
LayerTransactionParent* aLayerTree) {
ScheduleComposition();
}
bool CompositorBridgeParent::SetTestSampleTime(const LayersId& aId,
const TimeStamp& aTime) {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
if (aTime.IsNull()) {
return false;
}
mTestTime = Some(aTime);
if (mWrBridge) {
mWrBridge->FlushRendering();
return true;
}
bool testComposite =
mCompositionManager && mCompositorScheduler->NeedsComposite();
// Update but only if we were already scheduled to animate
if (testComposite) {
AutoResolveRefLayers resolve(mCompositionManager);
bool requestNextFrame =
mCompositionManager->TransformShadowTree(aTime, mVsyncRate);
if (!requestNextFrame) {
CancelCurrentCompositeTask();
// Pretend we composited in case someone is wating for this event.
TimeStamp now = TimeStamp::Now();
DidComposite(VsyncId(), now, now);
}
}
return true;
}
void CompositorBridgeParent::LeaveTestMode(const LayersId& aId) {
mTestTime = Nothing();
}
void CompositorBridgeParent::ApplyAsyncProperties(
LayerTransactionParent* aLayerTree, TransformsToSkip aSkip) {
// NOTE: This should only be used for testing. For example, when mTestTime is
// non-empty, or when called from test-only methods like
// LayerTransactionParent::RecvGetAnimationTransform.
// Synchronously update the layer tree
if (aLayerTree->GetRoot()) {
AutoResolveRefLayers resolve(mCompositionManager);
SetShadowProperties(mLayerManager->GetRoot());
TimeStamp time =
mTestTime.valueOr(mCompositorScheduler->GetLastComposeTime());
bool requestNextFrame =
mCompositionManager->TransformShadowTree(time, mVsyncRate, aSkip);
if (!requestNextFrame) {
CancelCurrentCompositeTask();
// Pretend we composited in case someone is waiting for this event.
TimeStamp now = TimeStamp::Now();
DidComposite(VsyncId(), now, now);
}
}
}
CompositorAnimationStorage* CompositorBridgeParent::GetAnimationStorage() {
if (!mAnimationStorage) {
mAnimationStorage = new CompositorAnimationStorage();
}
return mAnimationStorage;
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvGetFrameUniformity(
FrameUniformityData* aOutData) {
mCompositionManager->GetFrameUniformity(aOutData);
return IPC_OK();
}
void CompositorBridgeParent::SetTestAsyncScrollOffset(
const WRRootId& aWrRootId, const ScrollableLayerGuid::ViewID& aScrollId,
const CSSPoint& aPoint) {
if (mApzUpdater) {
MOZ_ASSERT(aWrRootId.IsValid());
mApzUpdater->SetTestAsyncScrollOffset(aWrRootId, aScrollId, aPoint);
}
}
void CompositorBridgeParent::SetTestAsyncZoom(
const WRRootId& aWrRootId, const ScrollableLayerGuid::ViewID& aScrollId,
const LayerToParentLayerScale& aZoom) {
if (mApzUpdater) {
MOZ_ASSERT(aWrRootId.IsValid());
mApzUpdater->SetTestAsyncZoom(aWrRootId, aScrollId, aZoom);
}
}
void CompositorBridgeParent::FlushApzRepaints(const WRRootId& aWrRootId) {
MOZ_ASSERT(mApzUpdater);
MOZ_ASSERT(aWrRootId.IsValid());
mApzUpdater->RunOnControllerThread(
UpdaterQueueSelector(aWrRootId),
NS_NewRunnableFunction(
"layers::CompositorBridgeParent::FlushApzRepaints",
[=]() { APZCTreeManager::FlushApzRepaints(aWrRootId.mLayersId); }));
}
void CompositorBridgeParent::GetAPZTestData(const WRRootId& aWrRootId,
APZTestData* aOutData) {
if (mApzUpdater) {
MOZ_ASSERT(aWrRootId.IsValid());
mApzUpdater->GetAPZTestData(aWrRootId, aOutData);
}
}
void CompositorBridgeParent::SetConfirmedTargetAPZC(
const LayersId& aLayersId, const uint64_t& aInputBlockId,
const nsTArray<SLGuidAndRenderRoot>& aTargets) {
if (!mApzcTreeManager || !mApzUpdater) {
return;
}
// Need to specifically bind this since it's overloaded.
void (APZCTreeManager::*setTargetApzcFunc)(
uint64_t, const nsTArray<SLGuidAndRenderRoot>&) =
&APZCTreeManager::SetTargetAPZC;
RefPtr<Runnable> task = NewRunnableMethod<
uint64_t, StoreCopyPassByConstLRef<nsTArray<SLGuidAndRenderRoot>>>(
"layers::CompositorBridgeParent::SetConfirmedTargetAPZC",
mApzcTreeManager.get(), setTargetApzcFunc, aInputBlockId, aTargets);
UpdaterQueueSelector selector(aLayersId);
for (size_t i = 0; i < aTargets.Length(); i++) {
selector.mRenderRoots += aTargets[i].mRenderRoot;
}
mApzUpdater->RunOnControllerThread(selector, task.forget());
}
void CompositorBridgeParent::InitializeLayerManager(
const nsTArray<LayersBackend>& aBackendHints) {
NS_ASSERTION(!mLayerManager, "Already initialised mLayerManager");
NS_ASSERTION(!mCompositor, "Already initialised mCompositor");
if (!InitializeAdvancedLayers(aBackendHints, nullptr)) {
mCompositor = NewCompositor(aBackendHints);
if (!mCompositor) {
return;
}
mLayerManager = new LayerManagerComposite(mCompositor);
}
mLayerManager->SetCompositorBridgeID(mCompositorBridgeID);
MonitorAutoLock lock(*sIndirectLayerTreesLock);
sIndirectLayerTrees[mRootLayerTreeID].mLayerManager = mLayerManager;
}
bool CompositorBridgeParent::InitializeAdvancedLayers(
const nsTArray<LayersBackend>& aBackendHints,
TextureFactoryIdentifier* aOutIdentifier) {
#ifdef XP_WIN
if (!mOptions.UseAdvancedLayers()) {
return false;
}
// Currently LayerManagerMLGPU hardcodes a D3D11 device, so we reject using
// AL if LAYERS_D3D11 isn't in the backend hints.
if (!aBackendHints.Contains(LayersBackend::LAYERS_D3D11)) {
return false;
}
RefPtr<LayerManagerMLGPU> manager = new LayerManagerMLGPU(mWidget);
if (!manager->Initialize()) {
return false;
}
if (aOutIdentifier) {
*aOutIdentifier = manager->GetTextureFactoryIdentifier();
}
mLayerManager = manager;
return true;
#else
return false;
#endif
}
RefPtr<Compositor> CompositorBridgeParent::NewCompositor(
const nsTArray<LayersBackend>& aBackendHints) {
for (size_t i = 0; i < aBackendHints.Length(); ++i) {
RefPtr<Compositor> compositor;
if (aBackendHints[i] == LayersBackend::LAYERS_OPENGL) {
compositor =
new CompositorOGL(this, mWidget, mEGLSurfaceSize.width,
mEGLSurfaceSize.height, mUseExternalSurfaceSize);
} else if (aBackendHints[i] == LayersBackend::LAYERS_BASIC) {
#ifdef MOZ_WIDGET_GTK
if (gfxVars::UseXRender()) {
compositor = new X11BasicCompositor(this, mWidget);
} else
#endif
{
compositor = new BasicCompositor(this, mWidget);
}
#ifdef XP_WIN
} else if (aBackendHints[i] == LayersBackend::LAYERS_D3D11) {
compositor = new CompositorD3D11(this, mWidget);
#endif
}
nsCString failureReason;
// Some software GPU emulation implementations will happily try to create
// unreasonably big surfaces and then fail in awful ways.
// Let's at least limit this to the default max texture size we use for
// content, anything larger than that will fail to render on the content
// side anyway. We can revisit this value and make it even tighter if need
// be.
const int max_fb_size = 32767;
const LayoutDeviceIntSize size = mWidget->GetClientSize();
if (size.width > max_fb_size || size.height > max_fb_size) {
failureReason = "FEATURE_FAILURE_MAX_FRAMEBUFFER_SIZE";
return nullptr;
}
MOZ_ASSERT(!gfxVars::UseWebRender() ||
aBackendHints[i] == LayersBackend::LAYERS_BASIC);
if (compositor && compositor->Initialize(&failureReason)) {
if (failureReason.IsEmpty()) {
failureReason = "SUCCESS";
}
// should only report success here
if (aBackendHints[i] == LayersBackend::LAYERS_OPENGL) {
Telemetry::Accumulate(Telemetry::OPENGL_COMPOSITING_FAILURE_ID,
failureReason);
}
#ifdef XP_WIN
else if (aBackendHints[i] == LayersBackend::LAYERS_D3D11) {
Telemetry::Accumulate(Telemetry::D3D11_COMPOSITING_FAILURE_ID,
failureReason);
}
#endif
return compositor;
}
// report any failure reasons here
if (aBackendHints[i] == LayersBackend::LAYERS_OPENGL) {
gfxCriticalNote << "[OPENGL] Failed to init compositor with reason: "
<< failureReason.get();
Telemetry::Accumulate(Telemetry::OPENGL_COMPOSITING_FAILURE_ID,
failureReason);
}
#ifdef XP_WIN
else if (aBackendHints[i] == LayersBackend::LAYERS_D3D11) {
gfxCriticalNote << "[D3D11] Failed to init compositor with reason: "
<< failureReason.get();
Telemetry::Accumulate(Telemetry::D3D11_COMPOSITING_FAILURE_ID,
failureReason);
}
#endif
}
return nullptr;
}
PLayerTransactionParent* CompositorBridgeParent::AllocPLayerTransactionParent(
const nsTArray<LayersBackend>& aBackendHints, const LayersId& aId) {
MOZ_ASSERT(!aId.IsValid());
InitializeLayerManager(aBackendHints);
if (!mLayerManager) {
NS_WARNING("Failed to initialise Compositor");
LayerTransactionParent* p = new LayerTransactionParent(
/* aManager */ nullptr, this, /* aAnimStorage */ nullptr,
mRootLayerTreeID, mVsyncRate);
p->AddIPDLReference();
return p;
}
mCompositionManager = new AsyncCompositionManager(this, mLayerManager);
LayerTransactionParent* p = new LayerTransactionParent(
mLayerManager, this, GetAnimationStorage(), mRootLayerTreeID, mVsyncRate);
p->AddIPDLReference();
return p;
}
bool CompositorBridgeParent::DeallocPLayerTransactionParent(
PLayerTransactionParent* actor) {
static_cast<LayerTransactionParent*>(actor)->ReleaseIPDLReference();
return true;
}
CompositorBridgeParent* CompositorBridgeParent::GetCompositorBridgeParent(
uint64_t id) {
AssertIsInCompositorThread();
CompositorMap::iterator it = sCompositorMap->find(id);
return it != sCompositorMap->end() ? it->second : nullptr;
}
void CompositorBridgeParent::AddCompositor(CompositorBridgeParent* compositor,
uint64_t* outID) {
AssertIsInCompositorThread();
static uint64_t sNextID = 1;
++sNextID;
(*sCompositorMap)[sNextID] = compositor;
*outID = sNextID;
}
CompositorBridgeParent* CompositorBridgeParent::RemoveCompositor(uint64_t id) {
AssertIsInCompositorThread();
CompositorMap::iterator it = sCompositorMap->find(id);
if (it == sCompositorMap->end()) {
return nullptr;
}
CompositorBridgeParent* retval = it->second;
sCompositorMap->erase(it);
return retval;
}
void CompositorBridgeParent::NotifyVsync(const VsyncEvent& aVsync,
const LayersId& aLayersId) {
MOZ_ASSERT(XRE_GetProcessType() == GeckoProcessType_GPU);
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
MonitorAutoLock lock(*sIndirectLayerTreesLock);
auto it = sIndirectLayerTrees.find(aLayersId);
if (it == sIndirectLayerTrees.end()) return;
CompositorBridgeParent* cbp = it->second.mParent;
if (!cbp || !cbp->mWidget) return;
RefPtr<VsyncObserver> obs = cbp->mWidget->GetVsyncObserver();
if (!obs) return;
obs->NotifyVsync(aVsync);
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvNotifyChildCreated(
const LayersId& child, CompositorOptions* aOptions) {
MonitorAutoLock lock(*sIndirectLayerTreesLock);
NotifyChildCreated(child);
*aOptions = mOptions;
return IPC_OK();
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvNotifyChildRecreated(
const LayersId& aChild, CompositorOptions* aOptions) {
MonitorAutoLock lock(*sIndirectLayerTreesLock);
if (sIndirectLayerTrees.find(aChild) != sIndirectLayerTrees.end()) {
NS_WARNING("Invalid to register the same layer tree twice");
return IPC_FAIL_NO_REASON(this);
}
NotifyChildCreated(aChild);
*aOptions = mOptions;
return IPC_OK();
}
void CompositorBridgeParent::NotifyChildCreated(LayersId aChild) {
sIndirectLayerTreesLock->AssertCurrentThreadOwns();
sIndirectLayerTrees[aChild].mParent = this;
sIndirectLayerTrees[aChild].mLayerManager = mLayerManager;
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvMapAndNotifyChildCreated(
const LayersId& aChild, const base::ProcessId& aOwnerPid,
CompositorOptions* aOptions) {
// We only use this message when the remote compositor is in the GPU process.
// It is harmless to call it, though.
MOZ_ASSERT(XRE_IsGPUProcess());
LayerTreeOwnerTracker::Get()->Map(aChild, aOwnerPid);
MonitorAutoLock lock(*sIndirectLayerTreesLock);
NotifyChildCreated(aChild);
*aOptions = mOptions;
return IPC_OK();
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvAdoptChild(
const LayersId& child) {
RefPtr<APZUpdater> oldApzUpdater;
APZCTreeManagerParent* parent;
bool scheduleComposition = false;
RefPtr<ContentCompositorBridgeParent> cpcp;
RefPtr<WebRenderBridgeParent> childWrBridge;
{ // scope lock
MonitorAutoLock lock(*sIndirectLayerTreesLock);
// If child is already belong to this CompositorBridgeParent,
// no need to handle adopting child.
if (sIndirectLayerTrees[child].mParent == this) {
return IPC_OK();
}
if (sIndirectLayerTrees[child].mParent) {
// We currently don't support adopting children from one compositor to
// another if the two compositors don't have the same options.
MOZ_ASSERT(sIndirectLayerTrees[child].mParent->mOptions == mOptions);
oldApzUpdater = sIndirectLayerTrees[child].mParent->mApzUpdater;
}
NotifyChildCreated(child);
if (sIndirectLayerTrees[child].mLayerTree) {
sIndirectLayerTrees[child].mLayerTree->SetLayerManager(
mLayerManager, GetAnimationStorage());
// Trigger composition to handle a case that mLayerTree was not composited
// yet by previous CompositorBridgeParent, since nsRefreshDriver might
// wait composition complete.
scheduleComposition = true;
}
if (mWrBridge) {
childWrBridge = sIndirectLayerTrees[child].mWrBridge;
cpcp = sIndirectLayerTrees[child].mContentCompositorBridgeParent;
}
parent = sIndirectLayerTrees[child].mApzcTreeManagerParent;
}
if (scheduleComposition) {
ScheduleComposition();
}
if (childWrBridge) {
MOZ_ASSERT(mWrBridge);
nsTArray<RefPtr<wr::WebRenderAPI>> apis;
DebugOnly<bool> cloneSuccess = mWrBridge->CloneWebRenderAPIs(apis);
MOZ_ASSERT(cloneSuccess);
wr::Epoch newEpoch = childWrBridge->UpdateWebRender(
mWrBridge->CompositorScheduler(), std::move(apis),
mWrBridge->AsyncImageManager(), GetAnimationStorage(),
mWrBridge->GetTextureFactoryIdentifier());
// Pretend we composited, since parent CompositorBridgeParent was replaced.
TimeStamp now = TimeStamp::Now();
NotifyPipelineRendered(childWrBridge->PipelineId(), newEpoch, VsyncId(),
now, now, now);
}
if (oldApzUpdater) {
// We don't support moving a child from an APZ-enabled compositor to a
// APZ-disabled compositor. The mOptions assertion above should already
// ensure this, since APZ-ness is one of the things in mOptions. Note
// however it is possible for mApzUpdater to be non-null here with
// oldApzUpdater null, because the child may not have been previously
// composited.
MOZ_ASSERT(mApzUpdater);
}
if (mApzUpdater) {
if (parent) {
MOZ_ASSERT(mApzcTreeManager);
parent->ChildAdopted(mApzcTreeManager, mApzUpdater);
}
mApzUpdater->NotifyLayerTreeAdopted(
WRRootId(child, gfxUtils::GetContentRenderRoot()), oldApzUpdater);
}
return IPC_OK();
}
PWebRenderBridgeParent* CompositorBridgeParent::AllocPWebRenderBridgeParent(
const wr::PipelineId& aPipelineId, const LayoutDeviceIntSize& aSize) {
#ifndef MOZ_BUILD_WEBRENDER
// Extra guard since this in the parent process and we don't want a malicious
// child process invoking this codepath before it's ready
MOZ_RELEASE_ASSERT(false);
#endif
MOZ_ASSERT(wr::AsLayersId(aPipelineId) == mRootLayerTreeID);
MOZ_ASSERT(!mWrBridge);
MOZ_ASSERT(!mCompositor);
MOZ_ASSERT(!mCompositorScheduler);
MOZ_ASSERT(mWidget);
#ifdef XP_WIN
if (mWidget && DeviceManagerDx::Get()->CanUseDComp()) {
mWidget->AsWindows()->EnsureCompositorWindow();
}
#endif
RefPtr<widget::CompositorWidget> widget = mWidget;
wr::WrWindowId windowId = wr::NewWindowId();
if (mApzUpdater) {
// If APZ is enabled, we need to register the APZ updater with the window id
// before the updater thread is created in WebRenderAPI::Create, so
// that the callback from the updater thread can find the right APZUpdater.
mApzUpdater->SetWebRenderWindowId(windowId);
}
if (mApzSampler) {
// Same as for mApzUpdater, but for the sampler thread.
mApzSampler->SetWebRenderWindowId(windowId);
}
InfallibleTArray<RefPtr<wr::WebRenderAPI>> apis;
apis.AppendElement(
wr::WebRenderAPI::Create(this, std::move(widget), windowId, aSize));
if (!apis[0]) {
mWrBridge = WebRenderBridgeParent::CreateDestroyed(aPipelineId);
mWrBridge.get()->AddRef(); // IPDL reference
return mWrBridge;
}
if (gfxPrefs::WebRenderSplitRenderRoots()) {
apis.AppendElement(
apis[0]->CreateDocument(aSize, 1, wr::RenderRoot::Content));
}
InfallibleTArray<RefPtr<wr::WebRenderAPI>> clonedApis;
for (auto& api : apis) {
wr::TransactionBuilder txn;
txn.SetRootPipeline(aPipelineId);
api->SendTransaction(txn);
clonedApis.AppendElement(api->Clone());
}
mAsyncImageManager = new AsyncImagePipelineManager(std::move(clonedApis));
RefPtr<AsyncImagePipelineManager> asyncMgr = mAsyncImageManager;
RefPtr<CompositorAnimationStorage> animStorage = GetAnimationStorage();
mWrBridge = new WebRenderBridgeParent(this, aPipelineId, mWidget, nullptr,
std::move(apis), std::move(asyncMgr),
std::move(animStorage), mVsyncRate);
mWrBridge.get()->AddRef(); // IPDL reference
mCompositorScheduler = mWrBridge->CompositorScheduler();
MOZ_ASSERT(mCompositorScheduler);
{ // scope lock
MonitorAutoLock lock(*sIndirectLayerTreesLock);
MOZ_ASSERT(sIndirectLayerTrees[mRootLayerTreeID].mWrBridge == nullptr);
sIndirectLayerTrees[mRootLayerTreeID].mWrBridge = mWrBridge;
}
return mWrBridge;
}
bool CompositorBridgeParent::DeallocPWebRenderBridgeParent(
PWebRenderBridgeParent* aActor) {
#ifndef MOZ_BUILD_WEBRENDER
// Extra guard since this in the parent process and we don't want a malicious
// child process invoking this codepath before it's ready
MOZ_RELEASE_ASSERT(false);
#endif
WebRenderBridgeParent* parent = static_cast<WebRenderBridgeParent*>(aActor);
{
MonitorAutoLock lock(*sIndirectLayerTreesLock);
auto it = sIndirectLayerTrees.find(wr::AsLayersId(parent->PipelineId()));
if (it != sIndirectLayerTrees.end()) {
it->second.mWrBridge = nullptr;
}
}
parent->Release(); // IPDL reference
return true;
}
void CompositorBridgeParent::NotifyMemoryPressure() {
if (mWrBridge) {
RefPtr<wr::WebRenderAPI> api =
mWrBridge->GetWebRenderAPI(wr::RenderRoot::Default);
if (api) {
api->NotifyMemoryPressure();
}
}
}
void CompositorBridgeParent::AccumulateMemoryReport(wr::MemoryReport* aReport) {
if (mWrBridge) {
RefPtr<wr::WebRenderAPI> api =
mWrBridge->GetWebRenderAPI(wr::RenderRoot::Default);
if (api) {
api->AccumulateMemoryReport(aReport);
}
}
}
RefPtr<WebRenderBridgeParent> CompositorBridgeParent::GetWebRenderBridgeParent()
const {
return mWrBridge;
}
Maybe<TimeStamp> CompositorBridgeParent::GetTestingTimeStamp() const {
return mTestTime;
}
static void EraseLayerState(LayersId aId) {
RefPtr<APZUpdater> apz;
{ // scope lock
MonitorAutoLock lock(*sIndirectLayerTreesLock);
auto iter = sIndirectLayerTrees.find(aId);
if (iter != sIndirectLayerTrees.end()) {
CompositorBridgeParent* parent = iter->second.mParent;
if (parent) {
apz = parent->GetAPZUpdater();
}
sIndirectLayerTrees.erase(iter);
}
}
if (apz) {
apz->NotifyLayerTreeRemoved(
WRRootId(aId, gfxUtils::GetContentRenderRoot()));
}
}
/*static*/
void CompositorBridgeParent::DeallocateLayerTreeId(LayersId aId) {
MOZ_ASSERT(NS_IsMainThread());
// Here main thread notifies compositor to remove an element from
// sIndirectLayerTrees. This removed element might be queried soon.
// Checking the elements of sIndirectLayerTrees exist or not before using.
if (!CompositorLoop()) {
gfxCriticalError() << "Attempting to post to a invalid Compositor Loop";
return;
}
CompositorLoop()->PostTask(
NewRunnableFunction("EraseLayerStateRunnable", &EraseLayerState, aId));
}
static void UpdateControllerForLayersId(LayersId aLayersId,
GeckoContentController* aController) {
// Adopt ref given to us by SetControllerForLayerTree()
MonitorAutoLock lock(*sIndirectLayerTreesLock);
sIndirectLayerTrees[aLayersId].mController =
already_AddRefed<GeckoContentController>(aController);
}
ScopedLayerTreeRegistration::ScopedLayerTreeRegistration(
APZCTreeManager* aApzctm, LayersId aLayersId, Layer* aRoot,
GeckoContentController* aController)
: mLayersId(aLayersId) {
EnsureLayerTreeMapReady();
MonitorAutoLock lock(*sIndirectLayerTreesLock);
sIndirectLayerTrees[aLayersId].mRoot = aRoot;
sIndirectLayerTrees[aLayersId].mController = aController;
}
ScopedLayerTreeRegistration::~ScopedLayerTreeRegistration() {
MonitorAutoLock lock(*sIndirectLayerTreesLock);
sIndirectLayerTrees.erase(mLayersId);
}
/*static*/
void CompositorBridgeParent::SetControllerForLayerTree(
LayersId aLayersId, GeckoContentController* aController) {
// This ref is adopted by UpdateControllerForLayersId().
aController->AddRef();
CompositorLoop()->PostTask(NewRunnableFunction(
"UpdateControllerForLayersIdRunnable", &UpdateControllerForLayersId,
aLayersId, aController));
}
/*static*/
already_AddRefed<IAPZCTreeManager> CompositorBridgeParent::GetAPZCTreeManager(
LayersId aLayersId) {
EnsureLayerTreeMapReady();
MonitorAutoLock lock(*sIndirectLayerTreesLock);
LayerTreeMap::iterator cit = sIndirectLayerTrees.find(aLayersId);
if (sIndirectLayerTrees.end() == cit) {
return nullptr;
}
LayerTreeState* lts = &cit->second;
RefPtr<IAPZCTreeManager> apzctm =
lts->mParent ? lts->mParent->mApzcTreeManager.get() : nullptr;
return apzctm.forget();
}
#if defined(MOZ_GECKO_PROFILER)
static void InsertVsyncProfilerMarker(TimeStamp aVsyncTimestamp) {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
if (profiler_thread_is_being_profiled()) {
profiler_add_marker("VsyncTimestamp", JS::ProfilingCategoryPair::GRAPHICS,
MakeUnique<VsyncMarkerPayload>(aVsyncTimestamp));
}
}
#endif
/*static */
void CompositorBridgeParent::PostInsertVsyncProfilerMarker(
TimeStamp aVsyncTimestamp) {
#if defined(MOZ_GECKO_PROFILER)
// Called in the vsync thread
if (profiler_is_active() && CompositorThreadHolder::IsActive()) {
CompositorLoop()->PostTask(
NewRunnableFunction("InsertVsyncProfilerMarkerRunnable",
InsertVsyncProfilerMarker, aVsyncTimestamp));
}
#endif
}
widget::PCompositorWidgetParent*
CompositorBridgeParent::AllocPCompositorWidgetParent(
const CompositorWidgetInitData& aInitData) {
#if defined(MOZ_WIDGET_SUPPORTS_OOP_COMPOSITING)
if (mWidget) {
// Should not create two widgets on the same compositor.
return nullptr;
}
widget::CompositorWidgetParent* widget =
new widget::CompositorWidgetParent(aInitData, mOptions);
widget->AddRef();
// Sending the constructor acts as initialization as well.
mWidget = widget;
return widget;
#else
return nullptr;
#endif
}
bool CompositorBridgeParent::DeallocPCompositorWidgetParent(
PCompositorWidgetParent* aActor) {
#if defined(MOZ_WIDGET_SUPPORTS_OOP_COMPOSITING)
static_cast<widget::CompositorWidgetParent*>(aActor)->Release();
return true;
#else
return false;
#endif
}
bool CompositorBridgeParent::IsPendingComposite() {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
if (!mCompositor) {
return false;
}
return mCompositor->IsPendingComposite();
}
void CompositorBridgeParent::FinishPendingComposite() {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
if (!mCompositor) {
return;
}
return mCompositor->FinishPendingComposite();
}
CompositorController*
CompositorBridgeParent::LayerTreeState::GetCompositorController() const {
return mParent;
}
MetricsSharingController*
CompositorBridgeParent::LayerTreeState::CrossProcessSharingController() const {
return mContentCompositorBridgeParent;
}
MetricsSharingController*
CompositorBridgeParent::LayerTreeState::InProcessSharingController() const {
return mParent;
}
void CompositorBridgeParent::DidComposite(const VsyncId& aId,
TimeStamp& aCompositeStart,
TimeStamp& aCompositeEnd) {
if (mWrBridge) {
MOZ_ASSERT(false); // This should never get called for a WR compositor
} else {
NotifyDidComposite(mPendingTransaction, aId, aCompositeStart,
aCompositeEnd);
#if defined(ENABLE_FRAME_LATENCY_LOG)
if (mPendingTransaction.IsValid()) {
if (mRefreshStartTime) {
int32_t latencyMs =
lround((aCompositeEnd - mRefreshStartTime).ToMilliseconds());
printf_stderr(
"From transaction start to end of generate frame latencyMs %d this "
"%p\n",
latencyMs, this);
}
if (mFwdTime) {
int32_t latencyMs = lround((aCompositeEnd - mFwdTime).ToMilliseconds());
printf_stderr(
"From forwarding transaction to end of generate frame latencyMs %d "
"this %p\n",
latencyMs, this);
}
}
mRefreshStartTime = TimeStamp();
mTxnStartTime = TimeStamp();
mFwdTime = TimeStamp();
#endif
mPendingTransaction = TransactionId{0};
}
}
void CompositorBridgeParent::NotifyDidSceneBuild(
const nsTArray<wr::RenderRoot>& aRenderRoots,
RefPtr<wr::WebRenderPipelineInfo> aInfo) {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
if (mPaused) {
return;
}
if (mWrBridge) {
mWrBridge->NotifyDidSceneBuild(aRenderRoots, aInfo);
} else {
mCompositorScheduler->ScheduleComposition();
}
}
void CompositorBridgeParent::NotifyPipelineRendered(
const wr::PipelineId& aPipelineId, const wr::Epoch& aEpoch,
const VsyncId& aCompositeStartId, TimeStamp& aCompositeStart,
TimeStamp& aRenderStart, TimeStamp& aCompositeEnd,
wr::RendererStats* aStats) {
if (!mWrBridge || !mAsyncImageManager) {
return;
}
nsTArray<FrameStats> stats;
RefPtr<UiCompositorControllerParent> uiController =
UiCompositorControllerParent::GetFromRootLayerTreeId(mRootLayerTreeID);
if (mWrBridge->PipelineId() == aPipelineId) {
mWrBridge->RemoveEpochDataPriorTo(aEpoch);
if (!mPaused) {
TransactionId transactionId = mWrBridge->FlushTransactionIdsForEpoch(
aEpoch, aCompositeStartId, aCompositeStart, aRenderStart,
aCompositeEnd, uiController);
Unused << SendDidComposite(LayersId{0}, transactionId, aCompositeStart,
aCompositeEnd);
nsTArray<ImageCompositeNotificationInfo> notifications;
mWrBridge->ExtractImageCompositeNotifications(&notifications);
if (!notifications.IsEmpty()) {
Unused << ImageBridgeParent::NotifyImageComposites(notifications);
}
}
return;
}
auto wrBridge = mAsyncImageManager->GetWrBridge(aPipelineId);
if (wrBridge && wrBridge->GetCompositorBridge()) {
MOZ_ASSERT(!wrBridge->IsRootWebRenderBridgeParent());
wrBridge->RemoveEpochDataPriorTo(aEpoch);
if (!mPaused) {
TransactionId transactionId = wrBridge->FlushTransactionIdsForEpoch(
aEpoch, aCompositeStartId, aCompositeStart, aRenderStart,
aCompositeEnd, uiController, aStats, &stats);
Unused << wrBridge->GetCompositorBridge()->SendDidComposite(
wrBridge->GetLayersId(), transactionId, aCompositeStart,
aCompositeEnd);
}
}
if (!stats.IsEmpty()) {
Unused << SendNotifyFrameStats(stats);
}
}
RefPtr<AsyncImagePipelineManager>
CompositorBridgeParent::GetAsyncImagePipelineManager() const {
return mAsyncImageManager;
}
void CompositorBridgeParent::NotifyDidComposite(TransactionId aTransactionId,
VsyncId aId,
TimeStamp& aCompositeStart,
TimeStamp& aCompositeEnd) {
MOZ_ASSERT(
!mWrBridge); // We should be going through NotifyPipelineRendered instead
Unused << SendDidComposite(LayersId{0}, aTransactionId, aCompositeStart,
aCompositeEnd);
if (mLayerManager) {
nsTArray<ImageCompositeNotificationInfo> notifications;
mLayerManager->ExtractImageCompositeNotifications(&notifications);
if (!notifications.IsEmpty()) {
Unused << ImageBridgeParent::NotifyImageComposites(notifications);
}
}
MonitorAutoLock lock(*sIndirectLayerTreesLock);
ForEachIndirectLayerTree([&](LayerTreeState* lts,
const LayersId& aLayersId) -> void {
if (lts->mContentCompositorBridgeParent && lts->mParent == this) {
ContentCompositorBridgeParent* cpcp = lts->mContentCompositorBridgeParent;
cpcp->DidCompositeLocked(aLayersId, aId, aCompositeStart, aCompositeEnd);
}
});
}
void CompositorBridgeParent::InvalidateRemoteLayers() {
MOZ_ASSERT(CompositorLoop() == MessageLoop::current());
Unused << PCompositorBridgeParent::SendInvalidateLayers(LayersId{0});
MonitorAutoLock lock(*sIndirectLayerTreesLock);
ForEachIndirectLayerTree([](LayerTreeState* lts,
const LayersId& aLayersId) -> void {
if (lts->mContentCompositorBridgeParent) {
ContentCompositorBridgeParent* cpcp = lts->mContentCompositorBridgeParent;
Unused << cpcp->SendInvalidateLayers(aLayersId);
}
});
}
static void UpdateIndirectTree(LayersId aId, Layer* aRoot,
const TargetConfig& aTargetConfig) {
MonitorAutoLock lock(*sIndirectLayerTreesLock);
sIndirectLayerTrees[aId].mRoot = aRoot;
sIndirectLayerTrees[aId].mTargetConfig = aTargetConfig;
}
/* static */ CompositorBridgeParent::LayerTreeState*
CompositorBridgeParent::GetIndirectShadowTree(LayersId aId) {
// Only the compositor thread should use this method variant
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
MonitorAutoLock lock(*sIndirectLayerTreesLock);
LayerTreeMap::iterator cit = sIndirectLayerTrees.find(aId);
if (sIndirectLayerTrees.end() == cit) {
return nullptr;
}
return &cit->second;
}
/* static */
bool CompositorBridgeParent::CallWithIndirectShadowTree(
LayersId aId,
const std::function<void(CompositorBridgeParent::LayerTreeState&)>& aFunc) {
// Note that this does not make things universally threadsafe just because the
// sIndirectLayerTreesLock mutex is held. This is because the compositor
// thread can mutate the LayerTreeState outside the lock. It does however
// ensure that the *storage* for the LayerTreeState remains stable, since we
// should always hold the lock when adding/removing entries to the map.
MonitorAutoLock lock(*sIndirectLayerTreesLock);
LayerTreeMap::iterator cit = sIndirectLayerTrees.find(aId);
if (sIndirectLayerTrees.end() == cit) {
return false;
}
aFunc(cit->second);
return true;
}
static CompositorBridgeParent::LayerTreeState* GetStateForRoot(
LayersId aContentLayersId, const MonitorAutoLock& aProofOfLock) {
CompositorBridgeParent::LayerTreeState* state = nullptr;
LayerTreeMap::iterator itr = sIndirectLayerTrees.find(aContentLayersId);
if (sIndirectLayerTrees.end() != itr) {
state = &itr->second;
}
// |state| is the state for the content process, but we want the APZCTMParent
// for the parent process owning that content process. So we have to jump to
// the LayerTreeState for the root layer tree id for that layer tree, and use
// the mApzcTreeManagerParent from that. This should also work with nested
// content processes, because RootLayerTreeId() will bypass any intermediate
// processes' ids and go straight to the root.
if (state) {
LayersId rootLayersId = state->mParent->RootLayerTreeId();
itr = sIndirectLayerTrees.find(rootLayersId);
state = (sIndirectLayerTrees.end() != itr) ? &itr->second : nullptr;
}
return state;
}
/* static */
APZCTreeManagerParent* CompositorBridgeParent::GetApzcTreeManagerParentForRoot(
LayersId aContentLayersId) {
MonitorAutoLock lock(*sIndirectLayerTreesLock);
CompositorBridgeParent::LayerTreeState* state =
GetStateForRoot(aContentLayersId, lock);
return state ? state->mApzcTreeManagerParent : nullptr;
}
/* static */
GeckoContentController*
CompositorBridgeParent::GetGeckoContentControllerForRoot(
LayersId aContentLayersId) {
MonitorAutoLock lock(*sIndirectLayerTreesLock);
CompositorBridgeParent::LayerTreeState* state =
GetStateForRoot(aContentLayersId, lock);
return state ? state->mController.get() : nullptr;
}
PTextureParent* CompositorBridgeParent::AllocPTextureParent(
const SurfaceDescriptor& aSharedData, const ReadLockDescriptor& aReadLock,
const LayersBackend& aLayersBackend, const TextureFlags& aFlags,
const LayersId& aId, const uint64_t& aSerial,
const wr::MaybeExternalImageId& aExternalImageId) {
return TextureHost::CreateIPDLActor(this, aSharedData, aReadLock,
aLayersBackend, aFlags, aSerial,
aExternalImageId);
}
bool CompositorBridgeParent::DeallocPTextureParent(PTextureParent* actor) {
return TextureHost::DestroyIPDLActor(actor);
}
bool CompositorBridgeParent::IsSameProcess() const {
return OtherPid() == base::GetCurrentProcId();
}
void CompositorBridgeParent::NotifyWebRenderContextPurge() {
MOZ_ASSERT(CompositorLoop() == MessageLoop::current());
RefPtr<wr::WebRenderAPI> api =
mWrBridge->GetWebRenderAPI(wr::RenderRoot::Default);
api->ClearAllCaches();
}
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
//#define PLUGINS_LOG(...) printf_stderr("CP [%s]: ", __FUNCTION__);
// printf_stderr(__VA_ARGS__);
// printf_stderr("\n");
# define PLUGINS_LOG(...)
bool CompositorBridgeParent::UpdatePluginWindowState(LayersId aId) {
MonitorAutoLock lock(*sIndirectLayerTreesLock);
CompositorBridgeParent::LayerTreeState& lts = sIndirectLayerTrees[aId];
if (!lts.mParent) {
PLUGINS_LOG("[%" PRIu64 "] layer tree compositor parent pointer is null",
aId);
return false;
}
// Check if this layer tree has received any shadow layer updates
if (!lts.mUpdatedPluginDataAvailable) {
PLUGINS_LOG("[%" PRIu64 "] no plugin data", aId);
return false;
}
// pluginMetricsChanged tracks whether we need to send plugin update
// data to the main thread. If we do we'll have to block composition,
// which we want to avoid if at all possible.
bool pluginMetricsChanged = false;
// Same layer tree checks
if (mLastPluginUpdateLayerTreeId == aId) {
// no plugin data and nothing has changed, bail.
if (!mCachedPluginData.Length() && !lts.mPluginData.Length()) {
PLUGINS_LOG("[%" PRIu64 "] no data, no changes", aId);
return false;
}
if (mCachedPluginData.Length() == lts.mPluginData.Length()) {
// check for plugin data changes
for (uint32_t idx = 0; idx < lts.mPluginData.Length(); idx++) {
if (!(mCachedPluginData[idx] == lts.mPluginData[idx])) {
pluginMetricsChanged = true;
break;
}
}
} else {
// array lengths don't match, need to update
pluginMetricsChanged = true;
}
} else {
// exchanging layer trees, we need to update
pluginMetricsChanged = true;
}
// Check if plugin windows are currently hidden due to scrolling
if (mDeferPluginWindows) {
PLUGINS_LOG("[%" PRIu64 "] suppressing", aId);
return false;
}
// If the plugin windows were hidden but now are not, we need to force
// update the metrics to make sure they are visible again.
if (mPluginWindowsHidden) {
PLUGINS_LOG("[%" PRIu64 "] re-showing", aId);
mPluginWindowsHidden = false;
pluginMetricsChanged = true;
}
if (!lts.mPluginData.Length()) {
// Don't hide plugins if the previous remote layer tree didn't contain any.
if (!mCachedPluginData.Length()) {
PLUGINS_LOG("[%" PRIu64 "] nothing to hide", aId);
return false;
}
uintptr_t parentWidget = GetWidget()->GetWidgetKey();
// We will pass through here in cases where the previous shadow layer
// tree contained visible plugins and the new tree does not. All we need
// to do here is hide the plugins for the old tree, so don't waste time
// calculating clipping.
mPluginsLayerOffset = nsIntPoint(0, 0);
mPluginsLayerVisibleRegion.SetEmpty();
Unused << lts.mParent->SendHideAllPlugins(parentWidget);
lts.mUpdatedPluginDataAvailable = false;
PLUGINS_LOG("[%" PRIu64 "] hide all", aId);
} else {
// Retrieve the offset and visible region of the layer that hosts
// the plugins, CompositorBridgeChild needs these in calculating proper
// plugin clipping.
LayerTransactionParent* layerTree = lts.mLayerTree;
Layer* contentRoot = layerTree->GetRoot();
if (contentRoot) {
nsIntPoint offset;
nsIntRegion visibleRegion;
if (contentRoot->GetVisibleRegionRelativeToRootLayer(visibleRegion,
&offset)) {
// Check to see if these values have changed, if so we need to
// update plugin window position within the window.
if (!pluginMetricsChanged &&
mPluginsLayerVisibleRegion == visibleRegion &&
mPluginsLayerOffset == offset) {
PLUGINS_LOG("[%" PRIu64 "] no change", aId);
return false;
}
mPluginsLayerOffset = offset;
mPluginsLayerVisibleRegion = visibleRegion;
Unused << lts.mParent->SendUpdatePluginConfigurations(
LayoutDeviceIntPoint::FromUnknownPoint(offset),
LayoutDeviceIntRegion::FromUnknownRegion(visibleRegion),
lts.mPluginData);
lts.mUpdatedPluginDataAvailable = false;
PLUGINS_LOG("[%" PRIu64 "] updated", aId);
} else {
PLUGINS_LOG("[%" PRIu64 "] no visibility data", aId);
return false;
}
} else {
PLUGINS_LOG("[%" PRIu64 "] no content root", aId);
return false;
}
}
mLastPluginUpdateLayerTreeId = aId;
mCachedPluginData = lts.mPluginData;
return true;
}
void CompositorBridgeParent::ScheduleShowAllPluginWindows() {
MOZ_ASSERT(CompositorLoop());
CompositorLoop()->PostTask(
NewRunnableMethod("layers::CompositorBridgeParent::ShowAllPluginWindows",
this, &CompositorBridgeParent::ShowAllPluginWindows));
}
void CompositorBridgeParent::ShowAllPluginWindows() {
MOZ_ASSERT(!NS_IsMainThread());
mDeferPluginWindows = false;
ScheduleComposition();
}
void CompositorBridgeParent::ScheduleHideAllPluginWindows() {
MOZ_ASSERT(CompositorLoop());
CompositorLoop()->PostTask(
NewRunnableMethod("layers::CompositorBridgeParent::HideAllPluginWindows",
this, &CompositorBridgeParent::HideAllPluginWindows));
}
void CompositorBridgeParent::HideAllPluginWindows() {
MOZ_ASSERT(!NS_IsMainThread());
// No plugins in the cache implies no plugins to manage
// in this content.
if (!mCachedPluginData.Length() || mDeferPluginWindows) {
return;
}
uintptr_t parentWidget = GetWidget()->GetWidgetKey();
mDeferPluginWindows = true;
mPluginWindowsHidden = true;
# if defined(XP_WIN)
// We will get an async reply that this has happened and then send hide.
mWaitForPluginsUntil = TimeStamp::Now() + mVsyncRate;
Unused << SendCaptureAllPlugins(parentWidget);
# else
Unused << SendHideAllPlugins(parentWidget);
ScheduleComposition();
# endif
}
#endif // #if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
mozilla::ipc::IPCResult CompositorBridgeParent::RecvAllPluginsCaptured() {
#if defined(XP_WIN)
mWaitForPluginsUntil = TimeStamp();
mHaveBlockedForPlugins = false;
ForceComposeToTarget(nullptr);
Unused << SendHideAllPlugins(GetWidget()->GetWidgetKey());
return IPC_OK();
#else
MOZ_ASSERT_UNREACHABLE(
"CompositorBridgeParent::RecvAllPluginsCaptured calls unexpected.");
return IPC_FAIL_NO_REASON(this);
#endif
}
int32_t RecordContentFrameTime(
const VsyncId& aTxnId, const TimeStamp& aVsyncStart,
const TimeStamp& aTxnStart, const VsyncId& aCompositeId,
const TimeStamp& aCompositeEnd, const TimeDuration& aFullPaintTime,
const TimeDuration& aVsyncRate, bool aContainsSVGGroup,
bool aRecordUploadStats, wr::RendererStats* aStats /* = nullptr */) {
double latencyMs = (aCompositeEnd - aTxnStart).ToMilliseconds();
double latencyNorm = latencyMs / aVsyncRate.ToMilliseconds();
int32_t fracLatencyNorm = lround(latencyNorm * 100.0);
#ifdef MOZ_GECKO_PROFILER
if (profiler_is_active()) {
class ContentFramePayload : public ProfilerMarkerPayload {
public:
ContentFramePayload(const mozilla::TimeStamp& aStartTime,
const mozilla::TimeStamp& aEndTime)
: ProfilerMarkerPayload(aStartTime, aEndTime) {}
virtual void StreamPayload(SpliceableJSONWriter& aWriter,
const TimeStamp& aProcessStartTime,
UniqueStacks& aUniqueStacks) override {
StreamCommonProps("CONTENT_FRAME_TIME", aWriter, aProcessStartTime,
aUniqueStacks);
}
};
profiler_add_marker_for_thread(
profiler_current_thread_id(), JS::ProfilingCategoryPair::GRAPHICS,
"CONTENT_FRAME_TIME",
MakeUnique<ContentFramePayload>(aTxnStart, aCompositeEnd));
}
#endif
Telemetry::Accumulate(Telemetry::CONTENT_FRAME_TIME, fracLatencyNorm);
if (!(aTxnId == VsyncId()) && aVsyncStart) {
latencyMs = (aCompositeEnd - aVsyncStart).ToMilliseconds();
latencyNorm = latencyMs / aVsyncRate.ToMilliseconds();
fracLatencyNorm = lround(latencyNorm * 100.0);
int32_t result = fracLatencyNorm;
Telemetry::Accumulate(Telemetry::CONTENT_FRAME_TIME_VSYNC, fracLatencyNorm);
if (aContainsSVGGroup) {
Telemetry::Accumulate(Telemetry::CONTENT_FRAME_TIME_WITH_SVG,
fracLatencyNorm);
}
// Record CONTENT_FRAME_TIME_REASON.
//
// Note that deseralizing a layers update (RecvUpdate) can delay the receipt
// of the composite vsync message
// (CompositorBridgeParent::CompositeToTarget), since they're using the same
// thread. This can mean that compositing might start significantly late,
// but this code will still detect it as having successfully started on the
// right vsync (which is somewhat correct). We'd now have reduced time left
// in the vsync interval to finish compositing, so the chances of a missed
// frame increases. This is effectively including the RecvUpdate work as
// part of the 'compositing' phase for this metric, but it isn't included in
// COMPOSITE_TIME, and *is* included in CONTENT_FULL_PAINT_TIME.
//
// Also of note is that when the root WebRenderBridgeParent decides to
// skip a composite (due to the Renderer being busy), that won't notify
// child WebRenderBridgeParents. That failure will show up as the
// composite starting late (since it did), but it's really a fault of a
// slow composite on the previous frame, not a slow
// CONTENT_FULL_PAINT_TIME. It would be nice to have a separate bucket for
// this category (scene was ready on the next vsync, but we chose not to
// composite), but I can't find a way to locate the right child
// WebRenderBridgeParents from the root. WebRender notifies us of the
// child pipelines contained within a render, after it finishes, but I
// can't see how to query what child pipeline would have been rendered,
// when we choose to not do it.
if (fracLatencyNorm < 200) {
// Success
Telemetry::AccumulateCategorical(
LABELS_CONTENT_FRAME_TIME_REASON::OnTime);
} else {
if (aCompositeId == VsyncId()) {
// aCompositeId is 0, possibly something got trigged from
// outside vsync?
Telemetry::AccumulateCategorical(
LABELS_CONTENT_FRAME_TIME_REASON::NoVsyncNoId);
} else if (aTxnId >= aCompositeId) {
// Vsync ids are nonsensical, maybe we're trying to catch up?
Telemetry::AccumulateCategorical(
LABELS_CONTENT_FRAME_TIME_REASON::NoVsync);
} else if (aCompositeId - aTxnId > 1) {
// Composite started late (and maybe took too long as well)
if (aFullPaintTime >= TimeDuration::FromMilliseconds(20)) {
Telemetry::AccumulateCategorical(
LABELS_CONTENT_FRAME_TIME_REASON::MissedCompositeLong);
} else if (aFullPaintTime >= TimeDuration::FromMilliseconds(10)) {
Telemetry::AccumulateCategorical(
LABELS_CONTENT_FRAME_TIME_REASON::MissedCompositeMid);
} else if (aFullPaintTime >= TimeDuration::FromMilliseconds(5)) {
Telemetry::AccumulateCategorical(
LABELS_CONTENT_FRAME_TIME_REASON::MissedCompositeLow);
} else {
Telemetry::AccumulateCategorical(
LABELS_CONTENT_FRAME_TIME_REASON::MissedComposite);
}
} else {
// Composite started on time, but must have taken too long.
Telemetry::AccumulateCategorical(
LABELS_CONTENT_FRAME_TIME_REASON::SlowComposite);
}
}
if (aRecordUploadStats) {
if (aStats) {
latencyMs -= (double(aStats->resource_upload_time) / 1000000.0);
latencyNorm = latencyMs / aVsyncRate.ToMilliseconds();
fracLatencyNorm = lround(latencyNorm * 100.0);
}
Telemetry::Accumulate(
Telemetry::CONTENT_FRAME_TIME_WITHOUT_RESOURCE_UPLOAD,
fracLatencyNorm);
if (aStats) {
latencyMs -= (double(aStats->gpu_cache_upload_time) / 1000000.0);
latencyNorm = latencyMs / aVsyncRate.ToMilliseconds();
fracLatencyNorm = lround(latencyNorm * 100.0);
}
Telemetry::Accumulate(Telemetry::CONTENT_FRAME_TIME_WITHOUT_UPLOAD,
fracLatencyNorm);
}
return result;
}
return 0;
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvBeginRecording(
const TimeStamp& aRecordingStart) {
mCompositionRecorder.reset(new CompositionRecorder(aRecordingStart));
mLayerManager->SetCompositionRecorder(mCompositionRecorder.get());
return IPC_OK();
}
mozilla::ipc::IPCResult CompositorBridgeParent::RecvEndRecording() {
mLayerManager->SetCompositionRecorder(nullptr);
mCompositionRecorder->WriteCollectedFrames();
mCompositionRecorder.reset(nullptr);
return IPC_OK();
}
} // namespace layers
} // namespace mozilla
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