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gecko-dev/gfx/layers/wr/WebRenderBridgeParent.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/WebRenderBridgeParent.h"
#include "CompositableHost.h"
#include "gfxEnv.h"
#include "gfxPrefs.h"
#include "gfxEnv.h"
#include "GeckoProfiler.h"
#include "GLContext.h"
#include "GLContextProvider.h"
#include "nsExceptionHandler.h"
#include "mozilla/Range.h"
#include "mozilla/layers/AnimationHelper.h"
#include "mozilla/layers/APZSampler.h"
#include "mozilla/layers/APZUpdater.h"
#include "mozilla/layers/Compositor.h"
#include "mozilla/layers/CompositorBridgeParent.h"
#include "mozilla/layers/CompositorThread.h"
#include "mozilla/layers/CompositorVsyncScheduler.h"
#include "mozilla/layers/ImageBridgeParent.h"
#include "mozilla/layers/ImageDataSerializer.h"
#include "mozilla/layers/IpcResourceUpdateQueue.h"
#include "mozilla/layers/SharedSurfacesParent.h"
#include "mozilla/layers/TextureHost.h"
#include "mozilla/layers/AsyncImagePipelineManager.h"
#include "mozilla/layers/WebRenderImageHost.h"
#include "mozilla/layers/WebRenderTextureHost.h"
#include "mozilla/Telemetry.h"
#include "mozilla/TimeStamp.h"
#include "mozilla/Unused.h"
#include "mozilla/webrender/RenderThread.h"
#include "mozilla/widget/CompositorWidget.h"
#ifdef MOZ_GECKO_PROFILER
# include "ProfilerMarkerPayload.h"
#endif
bool is_in_main_thread() { return NS_IsMainThread(); }
bool is_in_compositor_thread() {
return mozilla::layers::CompositorThreadHolder::IsInCompositorThread();
}
bool is_in_render_thread() {
return mozilla::wr::RenderThread::IsInRenderThread();
}
void gecko_profiler_start_marker(const char* name) {
#ifdef MOZ_GECKO_PROFILER
profiler_tracing("WebRender", name, JS::ProfilingCategoryPair::GRAPHICS,
TRACING_INTERVAL_START);
#endif
}
void gecko_profiler_end_marker(const char* name) {
#ifdef MOZ_GECKO_PROFILER
profiler_tracing("WebRender", name, JS::ProfilingCategoryPair::GRAPHICS,
TRACING_INTERVAL_END);
#endif
}
bool is_glcontext_egl(void* glcontext_ptr) {
MOZ_ASSERT(glcontext_ptr);
mozilla::gl::GLContext* glcontext =
reinterpret_cast<mozilla::gl::GLContext*>(glcontext_ptr);
if (!glcontext) {
return false;
}
return glcontext->GetContextType() == mozilla::gl::GLContextType::EGL;
}
bool is_glcontext_angle(void* glcontext_ptr) {
MOZ_ASSERT(glcontext_ptr);
mozilla::gl::GLContext* glcontext =
reinterpret_cast<mozilla::gl::GLContext*>(glcontext_ptr);
if (!glcontext) {
return false;
}
return glcontext->IsANGLE();
}
bool gfx_use_wrench() { return gfxEnv::EnableWebRenderRecording(); }
const char* gfx_wr_resource_path_override() {
const char* resourcePath = PR_GetEnv("WR_RESOURCE_PATH");
if (!resourcePath || resourcePath[0] == '\0') {
return nullptr;
}
return resourcePath;
}
void gfx_critical_note(const char* msg) { gfxCriticalNote << msg; }
void gfx_critical_error(const char* msg) { gfxCriticalError() << msg; }
void gecko_printf_stderr_output(const char* msg) { printf_stderr("%s\n", msg); }
void* get_proc_address_from_glcontext(void* glcontext_ptr,
const char* procname) {
MOZ_ASSERT(glcontext_ptr);
mozilla::gl::GLContext* glcontext =
reinterpret_cast<mozilla::gl::GLContext*>(glcontext_ptr);
if (!glcontext) {
return nullptr;
}
PRFuncPtr p = glcontext->LookupSymbol(procname);
return reinterpret_cast<void*>(p);
}
void gecko_profiler_register_thread(const char* name) {
PROFILER_REGISTER_THREAD(name);
}
void gecko_profiler_unregister_thread() { PROFILER_UNREGISTER_THREAD(); }
void record_telemetry_time(mozilla::wr::TelemetryProbe aProbe,
uint64_t aTimeNs) {
uint32_t time_ms = (uint32_t)(aTimeNs / 1000000);
switch (aProbe) {
case mozilla::wr::TelemetryProbe::SceneBuildTime:
mozilla::Telemetry::Accumulate(mozilla::Telemetry::WR_SCENEBUILD_TIME,
time_ms);
break;
case mozilla::wr::TelemetryProbe::SceneSwapTime:
mozilla::Telemetry::Accumulate(mozilla::Telemetry::WR_SCENESWAP_TIME,
time_ms);
break;
case mozilla::wr::TelemetryProbe::RenderTime:
mozilla::Telemetry::Accumulate(mozilla::Telemetry::WR_RENDER_TIME,
time_ms);
break;
default:
MOZ_ASSERT(false);
break;
}
}
namespace mozilla {
namespace layers {
using namespace mozilla::gfx;
class ScheduleObserveLayersUpdate : public wr::NotificationHandler {
public:
ScheduleObserveLayersUpdate(RefPtr<CompositorBridgeParentBase> aBridge,
LayersId aLayersId, LayersObserverEpoch aEpoch,
bool aIsActive)
: mBridge(aBridge),
mLayersId(aLayersId),
mObserverEpoch(aEpoch),
mIsActive(aIsActive) {}
virtual void Notify(wr::Checkpoint) override {
CompositorThreadHolder::Loop()->PostTask(
NewRunnableMethod<LayersId, LayersObserverEpoch, int>(
"ObserveLayersUpdate", mBridge,
&CompositorBridgeParentBase::ObserveLayersUpdate, mLayersId,
mObserverEpoch, mIsActive));
}
protected:
RefPtr<CompositorBridgeParentBase> mBridge;
LayersId mLayersId;
LayersObserverEpoch mObserverEpoch;
bool mIsActive;
};
class SceneBuiltNotification : public wr::NotificationHandler {
public:
explicit SceneBuiltNotification(WebRenderBridgeParent* aParent,
wr::Epoch aEpoch, TimeStamp aTxnStartTime)
: mParent(aParent), mEpoch(aEpoch), mTxnStartTime(aTxnStartTime) {}
virtual void Notify(wr::Checkpoint) override {
auto startTime = this->mTxnStartTime;
RefPtr<WebRenderBridgeParent> parent = mParent;
wr::Epoch epoch = mEpoch;
CompositorThreadHolder::Loop()->PostTask(NS_NewRunnableFunction(
"SceneBuiltNotificationRunnable", [parent, epoch, startTime]() {
auto endTime = TimeStamp::Now();
#ifdef MOZ_GECKO_PROFILER
if (profiler_is_active()) {
class ContentFullPaintPayload : public ProfilerMarkerPayload {
public:
ContentFullPaintPayload(const mozilla::TimeStamp& aStartTime,
const mozilla::TimeStamp& aEndTime)
: ProfilerMarkerPayload(aStartTime, aEndTime) {}
virtual void StreamPayload(SpliceableJSONWriter& aWriter,
const TimeStamp& aProcessStartTime,
UniqueStacks& aUniqueStacks) override {
StreamCommonProps("CONTENT_FULL_PAINT_TIME", aWriter,
aProcessStartTime, aUniqueStacks);
}
};
profiler_add_marker_for_thread(
profiler_current_thread_id(),
JS::ProfilingCategoryPair::GRAPHICS, "CONTENT_FULL_PAINT_TIME",
MakeUnique<ContentFullPaintPayload>(startTime, endTime));
}
#endif
Telemetry::Accumulate(
Telemetry::CONTENT_FULL_PAINT_TIME,
static_cast<uint32_t>((endTime - startTime).ToMilliseconds()));
parent->NotifySceneBuiltForEpoch(epoch, endTime);
}));
}
protected:
RefPtr<WebRenderBridgeParent> mParent;
wr::Epoch mEpoch;
TimeStamp mTxnStartTime;
};
class WebRenderBridgeParent::ScheduleSharedSurfaceRelease final
: public wr::NotificationHandler {
public:
explicit ScheduleSharedSurfaceRelease(WebRenderBridgeParent* aWrBridge)
: mWrBridge(aWrBridge), mSurfaces(20) {}
void Add(const wr::ImageKey& aKey, const wr::ExternalImageId& aId) {
mSurfaces.AppendElement(wr::ExternalImageKeyPair{aKey, aId});
}
void Notify(wr::Checkpoint) override {
CompositorThreadHolder::Loop()->PostTask(
NewRunnableMethod<nsTArray<wr::ExternalImageKeyPair>>(
"ObserveSharedSurfaceRelease", mWrBridge,
&WebRenderBridgeParent::ObserveSharedSurfaceRelease,
std::move(mSurfaces)));
}
private:
RefPtr<WebRenderBridgeParent> mWrBridge;
nsTArray<wr::ExternalImageKeyPair> mSurfaces;
};
class MOZ_STACK_CLASS AutoWebRenderBridgeParentAsyncMessageSender {
public:
explicit AutoWebRenderBridgeParentAsyncMessageSender(
WebRenderBridgeParent* aWebRenderBridgeParent,
InfallibleTArray<OpDestroy>* aDestroyActors = nullptr)
: mWebRenderBridgeParent(aWebRenderBridgeParent),
mActorsToDestroy(aDestroyActors) {
mWebRenderBridgeParent->SetAboutToSendAsyncMessages();
}
~AutoWebRenderBridgeParentAsyncMessageSender() {
mWebRenderBridgeParent->SendPendingAsyncMessages();
if (mActorsToDestroy) {
// Destroy the actors after sending the async messages because the latter
// may contain references to some actors.
for (const auto& op : *mActorsToDestroy) {
mWebRenderBridgeParent->DestroyActor(op);
}
}
}
private:
WebRenderBridgeParent* mWebRenderBridgeParent;
InfallibleTArray<OpDestroy>* mActorsToDestroy;
};
WebRenderBridgeParent::WebRenderBridgeParent(
CompositorBridgeParentBase* aCompositorBridge,
const wr::PipelineId& aPipelineId, widget::CompositorWidget* aWidget,
CompositorVsyncScheduler* aScheduler, RefPtr<wr::WebRenderAPI>&& aApi,
RefPtr<AsyncImagePipelineManager>&& aImageMgr,
RefPtr<CompositorAnimationStorage>&& aAnimStorage, TimeDuration aVsyncRate)
: mCompositorBridge(aCompositorBridge),
mPipelineId(aPipelineId),
mWidget(aWidget),
mApi(aApi),
mAsyncImageManager(aImageMgr),
mCompositorScheduler(aScheduler),
mAnimStorage(aAnimStorage),
mVsyncRate(aVsyncRate),
mChildLayersObserverEpoch{0},
mParentLayersObserverEpoch{0},
mWrEpoch{0},
mIdNamespace(aApi->GetNamespace()),
mPaused(false),
mDestroyed(false),
mReceivedDisplayList(false),
mIsFirstPaint(true),
mSkippedComposite(false) {
MOZ_ASSERT(mAsyncImageManager);
MOZ_ASSERT(mAnimStorage);
mAsyncImageManager->AddPipeline(mPipelineId, this);
if (IsRootWebRenderBridgeParent()) {
MOZ_ASSERT(!mCompositorScheduler);
mCompositorScheduler = new CompositorVsyncScheduler(this, mWidget);
}
}
WebRenderBridgeParent::WebRenderBridgeParent(const wr::PipelineId& aPipelineId)
: mCompositorBridge(nullptr),
mPipelineId(aPipelineId),
mChildLayersObserverEpoch{0},
mParentLayersObserverEpoch{0},
mWrEpoch{0},
mIdNamespace{0},
mPaused(false),
mDestroyed(true),
mReceivedDisplayList(false),
mIsFirstPaint(false),
mSkippedComposite(false) {}
/* static */ WebRenderBridgeParent* WebRenderBridgeParent::CreateDestroyed(
const wr::PipelineId& aPipelineId) {
return new WebRenderBridgeParent(aPipelineId);
}
WebRenderBridgeParent::~WebRenderBridgeParent() {}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvEnsureConnected(
TextureFactoryIdentifier* aTextureFactoryIdentifier,
MaybeIdNamespace* aMaybeIdNamespace) {
if (mDestroyed) {
*aTextureFactoryIdentifier =
TextureFactoryIdentifier(LayersBackend::LAYERS_NONE);
*aMaybeIdNamespace = Nothing();
return IPC_OK();
}
MOZ_ASSERT(mIdNamespace.mHandle != 0);
*aTextureFactoryIdentifier = GetTextureFactoryIdentifier();
*aMaybeIdNamespace = Some(mIdNamespace);
return IPC_OK();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvShutdown() {
return HandleShutdown();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvShutdownSync() {
return HandleShutdown();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::HandleShutdown() {
Destroy();
IProtocol* mgr = Manager();
if (!Send__delete__(this)) {
return IPC_FAIL_NO_REASON(mgr);
}
return IPC_OK();
}
void WebRenderBridgeParent::Destroy() {
if (mDestroyed) {
return;
}
mDestroyed = true;
ClearResources();
}
bool WebRenderBridgeParent::UpdateResources(
const nsTArray<OpUpdateResource>& aResourceUpdates,
const nsTArray<RefCountedShmem>& aSmallShmems,
const nsTArray<ipc::Shmem>& aLargeShmems,
wr::TransactionBuilder& aUpdates) {
wr::ShmSegmentsReader reader(aSmallShmems, aLargeShmems);
UniquePtr<ScheduleSharedSurfaceRelease> scheduleRelease;
for (const auto& cmd : aResourceUpdates) {
switch (cmd.type()) {
case OpUpdateResource::TOpAddImage: {
const auto& op = cmd.get_OpAddImage();
wr::Vec<uint8_t> bytes;
if (!reader.Read(op.bytes(), bytes)) {
return false;
}
aUpdates.AddImage(op.key(), op.descriptor(), bytes);
break;
}
case OpUpdateResource::TOpUpdateImage: {
const auto& op = cmd.get_OpUpdateImage();
wr::Vec<uint8_t> bytes;
if (!reader.Read(op.bytes(), bytes)) {
return false;
}
aUpdates.UpdateImageBuffer(op.key(), op.descriptor(), bytes);
break;
}
case OpUpdateResource::TOpAddBlobImage: {
const auto& op = cmd.get_OpAddBlobImage();
wr::Vec<uint8_t> bytes;
if (!reader.Read(op.bytes(), bytes)) {
return false;
}
aUpdates.AddBlobImage(op.key(), op.descriptor(), bytes);
break;
}
case OpUpdateResource::TOpUpdateBlobImage: {
const auto& op = cmd.get_OpUpdateBlobImage();
wr::Vec<uint8_t> bytes;
if (!reader.Read(op.bytes(), bytes)) {
return false;
}
aUpdates.UpdateBlobImage(op.key(), op.descriptor(), bytes,
wr::ToLayoutIntRect(op.dirtyRect()));
break;
}
case OpUpdateResource::TOpSetImageVisibleArea: {
const auto& op = cmd.get_OpSetImageVisibleArea();
wr::DeviceIntRect area;
area.origin.x = op.area().x;
area.origin.y = op.area().y;
area.size.width = op.area().width;
area.size.height = op.area().height;
aUpdates.SetImageVisibleArea(op.key(), area);
break;
}
case OpUpdateResource::TOpAddExternalImage: {
const auto& op = cmd.get_OpAddExternalImage();
if (!AddExternalImage(op.externalImageId(), op.key(), aUpdates)) {
return false;
}
break;
}
case OpUpdateResource::TOpPushExternalImageForTexture: {
const auto& op = cmd.get_OpPushExternalImageForTexture();
CompositableTextureHostRef texture;
texture = TextureHost::AsTextureHost(op.textureParent());
if (!PushExternalImageForTexture(op.externalImageId(), op.key(),
texture, op.isUpdate(), aUpdates)) {
return false;
}
break;
}
case OpUpdateResource::TOpUpdateExternalImage: {
const auto& op = cmd.get_OpUpdateExternalImage();
if (!UpdateExternalImage(op.externalImageId(), op.key(), op.dirtyRect(),
aUpdates, scheduleRelease)) {
return false;
}
break;
}
case OpUpdateResource::TOpAddRawFont: {
const auto& op = cmd.get_OpAddRawFont();
wr::Vec<uint8_t> bytes;
if (!reader.Read(op.bytes(), bytes)) {
return false;
}
aUpdates.AddRawFont(op.key(), bytes, op.fontIndex());
break;
}
case OpUpdateResource::TOpAddFontDescriptor: {
const auto& op = cmd.get_OpAddFontDescriptor();
wr::Vec<uint8_t> bytes;
if (!reader.Read(op.bytes(), bytes)) {
return false;
}
aUpdates.AddFontDescriptor(op.key(), bytes, op.fontIndex());
break;
}
case OpUpdateResource::TOpAddFontInstance: {
const auto& op = cmd.get_OpAddFontInstance();
wr::Vec<uint8_t> variations;
if (!reader.Read(op.variations(), variations)) {
return false;
}
aUpdates.AddFontInstance(op.instanceKey(), op.fontKey(), op.glyphSize(),
op.options().ptrOr(nullptr),
op.platformOptions().ptrOr(nullptr),
variations);
break;
}
case OpUpdateResource::TOpDeleteImage: {
const auto& op = cmd.get_OpDeleteImage();
DeleteImage(op.key(), aUpdates);
break;
}
case OpUpdateResource::TOpDeleteBlobImage: {
const auto& op = cmd.get_OpDeleteBlobImage();
aUpdates.DeleteBlobImage(op.key());
break;
}
case OpUpdateResource::TOpDeleteFont: {
const auto& op = cmd.get_OpDeleteFont();
aUpdates.DeleteFont(op.key());
break;
}
case OpUpdateResource::TOpDeleteFontInstance: {
const auto& op = cmd.get_OpDeleteFontInstance();
aUpdates.DeleteFontInstance(op.key());
break;
}
case OpUpdateResource::T__None:
break;
}
}
if (scheduleRelease) {
aUpdates.Notify(wr::Checkpoint::FrameTexturesUpdated,
std::move(scheduleRelease));
}
return true;
}
bool WebRenderBridgeParent::AddExternalImage(
wr::ExternalImageId aExtId, wr::ImageKey aKey,
wr::TransactionBuilder& aResources) {
Range<wr::ImageKey> keys(&aKey, 1);
// Check if key is obsoleted.
if (keys[0].mNamespace != mIdNamespace) {
return true;
}
auto key = wr::AsUint64(aKey);
auto it = mSharedSurfaceIds.find(key);
if (it != mSharedSurfaceIds.end()) {
gfxCriticalNote << "Readding known shared surface: " << key;
return false;
}
RefPtr<DataSourceSurface> dSurf = SharedSurfacesParent::Acquire(aExtId);
if (!dSurf) {
gfxCriticalNote
<< "DataSourceSurface of SharedSurfaces does not exist for extId:"
<< wr::AsUint64(aExtId);
return false;
}
mSharedSurfaceIds.insert(std::make_pair(key, aExtId));
if (!gfxEnv::EnableWebRenderRecording()) {
wr::ImageDescriptor descriptor(dSurf->GetSize(), dSurf->Stride(),
dSurf->GetFormat());
aResources.AddExternalImage(aKey, descriptor, aExtId,
wr::WrExternalImageBufferType::ExternalBuffer,
0);
return true;
}
DataSourceSurface::MappedSurface map;
if (!dSurf->Map(gfx::DataSourceSurface::MapType::READ, &map)) {
gfxCriticalNote << "DataSourceSurface failed to map for Image for extId:"
<< wr::AsUint64(aExtId);
return false;
}
IntSize size = dSurf->GetSize();
wr::ImageDescriptor descriptor(size, map.mStride, dSurf->GetFormat());
wr::Vec<uint8_t> data;
data.PushBytes(Range<uint8_t>(map.mData, size.height * map.mStride));
aResources.AddImage(keys[0], descriptor, data);
dSurf->Unmap();
return true;
}
bool WebRenderBridgeParent::PushExternalImageForTexture(
wr::ExternalImageId aExtId, wr::ImageKey aKey, TextureHost* aTexture,
bool aIsUpdate, wr::TransactionBuilder& aResources) {
auto op = aIsUpdate ? TextureHost::UPDATE_IMAGE : TextureHost::ADD_IMAGE;
Range<wr::ImageKey> keys(&aKey, 1);
// Check if key is obsoleted.
if (keys[0].mNamespace != mIdNamespace) {
return true;
}
if (!aTexture) {
gfxCriticalNote << "TextureHost does not exist for extId:"
<< wr::AsUint64(aExtId);
return false;
}
if (!gfxEnv::EnableWebRenderRecording()) {
WebRenderTextureHost* wrTexture = aTexture->AsWebRenderTextureHost();
if (wrTexture) {
wrTexture->PushResourceUpdates(aResources, op, keys,
wrTexture->GetExternalImageKey());
auto it = mTextureHosts.find(wr::AsUint64(aKey));
MOZ_ASSERT((it == mTextureHosts.end() && !aIsUpdate) ||
(it != mTextureHosts.end() && aIsUpdate));
if (it != mTextureHosts.end()) {
// Release Texture if it exists.
ReleaseTextureOfImage(aKey);
}
mTextureHosts.emplace(wr::AsUint64(aKey),
CompositableTextureHostRef(aTexture));
return true;
}
}
RefPtr<DataSourceSurface> dSurf = aTexture->GetAsSurface();
if (!dSurf) {
gfxCriticalNote
<< "TextureHost does not return DataSourceSurface for extId:"
<< wr::AsUint64(aExtId);
return false;
}
DataSourceSurface::MappedSurface map;
if (!dSurf->Map(gfx::DataSourceSurface::MapType::READ, &map)) {
gfxCriticalNote << "DataSourceSurface failed to map for Image for extId:"
<< wr::AsUint64(aExtId);
return false;
}
IntSize size = dSurf->GetSize();
wr::ImageDescriptor descriptor(size, map.mStride, dSurf->GetFormat());
wr::Vec<uint8_t> data;
data.PushBytes(Range<uint8_t>(map.mData, size.height * map.mStride));
if (op == TextureHost::UPDATE_IMAGE) {
aResources.UpdateImageBuffer(keys[0], descriptor, data);
} else {
aResources.AddImage(keys[0], descriptor, data);
}
dSurf->Unmap();
return true;
}
bool WebRenderBridgeParent::UpdateExternalImage(
wr::ExternalImageId aExtId, wr::ImageKey aKey,
const ImageIntRect& aDirtyRect, wr::TransactionBuilder& aResources,
UniquePtr<ScheduleSharedSurfaceRelease>& aScheduleRelease) {
Range<wr::ImageKey> keys(&aKey, 1);
// Check if key is obsoleted.
if (keys[0].mNamespace != mIdNamespace) {
return true;
}
auto key = wr::AsUint64(aKey);
auto it = mSharedSurfaceIds.find(key);
if (it == mSharedSurfaceIds.end()) {
gfxCriticalNote << "Updating unknown shared surface: " << key;
return false;
}
RefPtr<DataSourceSurface> dSurf;
if (it->second == aExtId) {
dSurf = SharedSurfacesParent::Get(aExtId);
} else {
dSurf = SharedSurfacesParent::Acquire(aExtId);
}
if (!dSurf) {
gfxCriticalNote << "Shared surface does not exist for extId:"
<< wr::AsUint64(aExtId);
return false;
}
if (!(it->second == aExtId)) {
// We already have a mapping for this image key, so ensure we release the
// previous external image ID. This can happen when an image is animated,
// and it is changing the external image that the animation points to.
if (!aScheduleRelease) {
aScheduleRelease = MakeUnique<ScheduleSharedSurfaceRelease>(this);
}
aScheduleRelease->Add(aKey, it->second);
it->second = aExtId;
}
if (!gfxEnv::EnableWebRenderRecording()) {
wr::ImageDescriptor descriptor(dSurf->GetSize(), dSurf->Stride(),
dSurf->GetFormat());
aResources.UpdateExternalImageWithDirtyRect(
aKey, descriptor, aExtId, wr::WrExternalImageBufferType::ExternalBuffer,
wr::ToDeviceIntRect(aDirtyRect), 0);
return true;
}
DataSourceSurface::ScopedMap map(dSurf, DataSourceSurface::READ);
if (!map.IsMapped()) {
gfxCriticalNote << "DataSourceSurface failed to map for Image for extId:"
<< wr::AsUint64(aExtId);
return false;
}
IntSize size = dSurf->GetSize();
wr::ImageDescriptor descriptor(size, map.GetStride(), dSurf->GetFormat());
wr::Vec<uint8_t> data;
data.PushBytes(Range<uint8_t>(map.GetData(), size.height * map.GetStride()));
aResources.UpdateImageBuffer(keys[0], descriptor, data);
return true;
}
void WebRenderBridgeParent::ObserveSharedSurfaceRelease(
const nsTArray<wr::ExternalImageKeyPair>& aPairs) {
if (!mDestroyed) {
Unused << SendWrReleasedImages(aPairs);
}
for (const auto& pair : aPairs) {
SharedSurfacesParent::Release(pair.id);
}
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvUpdateResources(
nsTArray<OpUpdateResource>&& aResourceUpdates,
nsTArray<RefCountedShmem>&& aSmallShmems,
nsTArray<ipc::Shmem>&& aLargeShmems) {
if (mDestroyed) {
wr::IpcResourceUpdateQueue::ReleaseShmems(this, aSmallShmems);
wr::IpcResourceUpdateQueue::ReleaseShmems(this, aLargeShmems);
return IPC_OK();
}
wr::TransactionBuilder txn;
txn.SetLowPriority(!IsRootWebRenderBridgeParent());
bool success =
UpdateResources(aResourceUpdates, aSmallShmems, aLargeShmems, txn);
wr::IpcResourceUpdateQueue::ReleaseShmems(this, aSmallShmems);
wr::IpcResourceUpdateQueue::ReleaseShmems(this, aLargeShmems);
if (!success) {
return IPC_FAIL(this, "Invalid WebRender resource data shmem or address.");
}
mApi->SendTransaction(txn);
return IPC_OK();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvDeleteCompositorAnimations(
InfallibleTArray<uint64_t>&& aIds) {
if (mDestroyed) {
return IPC_OK();
}
// Once mWrEpoch has been rendered, we can delete these compositor animations
mCompositorAnimationsToDelete.push(
CompositorAnimationIdsForEpoch(mWrEpoch, std::move(aIds)));
return IPC_OK();
}
void WebRenderBridgeParent::RemoveEpochDataPriorTo(
const wr::Epoch& aRenderedEpoch) {
while (!mCompositorAnimationsToDelete.empty()) {
if (aRenderedEpoch < mCompositorAnimationsToDelete.front().mEpoch) {
break;
}
for (uint64_t id : mCompositorAnimationsToDelete.front().mIds) {
const auto activeAnim = mActiveAnimations.find(id);
if (activeAnim == mActiveAnimations.end()) {
NS_ERROR("Tried to delete invalid animation");
continue;
}
// Check if animation delete request is still valid.
if (activeAnim->second <= mCompositorAnimationsToDelete.front().mEpoch) {
mAnimStorage->ClearById(id);
mActiveAnimations.erase(activeAnim);
}
}
mCompositorAnimationsToDelete.pop();
}
}
bool WebRenderBridgeParent::IsRootWebRenderBridgeParent() const {
return !!mWidget;
}
CompositorBridgeParent* WebRenderBridgeParent::GetRootCompositorBridgeParent()
const {
if (!mCompositorBridge) {
return nullptr;
}
if (IsRootWebRenderBridgeParent()) {
// This WebRenderBridgeParent is attached to the root
// CompositorBridgeParent.
return static_cast<CompositorBridgeParent*>(mCompositorBridge);
}
// Otherwise, this WebRenderBridgeParent is attached to a
// CrossProcessCompositorBridgeParent so we have an extra level of
// indirection to unravel.
CompositorBridgeParent::LayerTreeState* lts =
CompositorBridgeParent::GetIndirectShadowTree(GetLayersId());
if (!lts) {
return nullptr;
}
return lts->mParent;
}
RefPtr<WebRenderBridgeParent>
WebRenderBridgeParent::GetRootWebRenderBridgeParent() const {
CompositorBridgeParent* cbp = GetRootCompositorBridgeParent();
if (!cbp) {
return nullptr;
}
return cbp->GetWebRenderBridgeParent();
}
void WebRenderBridgeParent::UpdateAPZFocusState(const FocusTarget& aFocus) {
CompositorBridgeParent* cbp = GetRootCompositorBridgeParent();
if (!cbp) {
return;
}
LayersId rootLayersId = cbp->RootLayerTreeId();
if (RefPtr<APZUpdater> apz = cbp->GetAPZUpdater()) {
apz->UpdateFocusState(rootLayersId, GetLayersId(), aFocus);
}
}
void WebRenderBridgeParent::UpdateAPZScrollData(const wr::Epoch& aEpoch,
WebRenderScrollData&& aData) {
CompositorBridgeParent* cbp = GetRootCompositorBridgeParent();
if (!cbp) {
return;
}
LayersId rootLayersId = cbp->RootLayerTreeId();
if (RefPtr<APZUpdater> apz = cbp->GetAPZUpdater()) {
apz->UpdateScrollDataAndTreeState(rootLayersId, GetLayersId(), aEpoch,
std::move(aData));
}
}
void WebRenderBridgeParent::UpdateAPZScrollOffsets(
ScrollUpdatesMap&& aUpdates, uint32_t aPaintSequenceNumber) {
CompositorBridgeParent* cbp = GetRootCompositorBridgeParent();
if (!cbp) {
return;
}
LayersId rootLayersId = cbp->RootLayerTreeId();
if (RefPtr<APZUpdater> apz = cbp->GetAPZUpdater()) {
apz->UpdateScrollOffsets(rootLayersId, GetLayersId(), std::move(aUpdates),
aPaintSequenceNumber);
}
}
void WebRenderBridgeParent::SetAPZSampleTime() {
CompositorBridgeParent* cbp = GetRootCompositorBridgeParent();
if (!cbp) {
return;
}
if (RefPtr<APZSampler> apz = cbp->GetAPZSampler()) {
TimeStamp animationTime = cbp->GetTestingTimeStamp().valueOr(
mCompositorScheduler->GetLastComposeTime());
TimeDuration frameInterval = cbp->GetVsyncInterval();
// As with the non-webrender codepath in AsyncCompositionManager, we want to
// use the timestamp for the next vsync when advancing animations.
if (frameInterval != TimeDuration::Forever()) {
animationTime += frameInterval;
}
apz->SetSampleTime(animationTime);
}
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvSetDisplayList(
const gfx::IntSize& aSize,
InfallibleTArray<WebRenderParentCommand>&& aCommands,
InfallibleTArray<OpDestroy>&& aToDestroy, const uint64_t& aFwdTransactionId,
const TransactionId& aTransactionId, const wr::LayoutSize& aContentSize,
ipc::ByteBuf&& dl, const wr::BuiltDisplayListDescriptor& dlDesc,
const WebRenderScrollData& aScrollData,
nsTArray<OpUpdateResource>&& aResourceUpdates,
nsTArray<RefCountedShmem>&& aSmallShmems,
nsTArray<ipc::Shmem>&& aLargeShmems, const wr::IdNamespace& aIdNamespace,
const bool& aContainsSVGGroup, const VsyncId& aVsyncId,
const TimeStamp& aVsyncStartTime, const TimeStamp& aRefreshStartTime,
const TimeStamp& aTxnStartTime, const nsCString& aTxnURL,
const TimeStamp& aFwdTime) {
if (mDestroyed) {
for (const auto& op : aToDestroy) {
DestroyActor(op);
}
return IPC_OK();
}
if (!IsRootWebRenderBridgeParent()) {
CrashReporter::AnnotateCrashReport(CrashReporter::Annotation::URL, aTxnURL);
}
AUTO_PROFILER_TRACING("Paint", "SetDisplayList", GRAPHICS);
UpdateFwdTransactionId(aFwdTransactionId);
// This ensures that destroy operations are always processed. It is not safe
// to early-return from RecvDPEnd without doing so.
AutoWebRenderBridgeParentAsyncMessageSender autoAsyncMessageSender(
this, &aToDestroy);
wr::Epoch wrEpoch = GetNextWrEpoch();
mAsyncImageManager->SetCompositionTime(TimeStamp::Now());
// If id namespaces do not match, it means the command is obsolete, probably
// because the tab just moved to a new window.
// In that case do not send the commands to webrender.
bool validTransaction = aIdNamespace == mIdNamespace;
wr::TransactionBuilder txn;
txn.SetLowPriority(!IsRootWebRenderBridgeParent());
Maybe<wr::AutoTransactionSender> sender;
if (validTransaction) {
sender.emplace(mApi, &txn);
}
if (!ProcessWebRenderParentCommands(aCommands, txn)) {
return IPC_FAIL(this, "Invalid parent command found");
}
if (!UpdateResources(aResourceUpdates, aSmallShmems, aLargeShmems, txn)) {
return IPC_FAIL(this, "Failed to deserialize resource updates");
}
mReceivedDisplayList = true;
if (aScrollData.IsFirstPaint()) {
mIsFirstPaint = true;
}
// aScrollData is moved into this function but that is not reflected by the
// function signature due to the way the IPDL generator works. We remove the
// const so that we can move this structure all the way to the desired
// destination.
// Also note that this needs to happen before the display list transaction is
// sent to WebRender, so that the UpdateHitTestingTree call is guaranteed to
// be in the updater queue at the time that the scene swap completes.
UpdateAPZScrollData(wrEpoch,
std::move(const_cast<WebRenderScrollData&>(aScrollData)));
wr::Vec<uint8_t> dlData(std::move(dl));
bool observeLayersUpdate = ShouldParentObserveEpoch();
if (validTransaction) {
if (IsRootWebRenderBridgeParent()) {
LayoutDeviceIntSize widgetSize = mWidget->GetClientSize();
LayoutDeviceIntRect docRect(LayoutDeviceIntPoint(), widgetSize);
txn.SetWindowParameters(widgetSize, docRect);
}
gfx::Color clearColor(0.f, 0.f, 0.f, 0.f);
txn.SetDisplayList(clearColor, wrEpoch,
LayerSize(aSize.width, aSize.height), mPipelineId,
aContentSize, dlDesc, dlData);
if (observeLayersUpdate) {
txn.Notify(wr::Checkpoint::SceneBuilt,
MakeUnique<ScheduleObserveLayersUpdate>(
mCompositorBridge, GetLayersId(),
mChildLayersObserverEpoch, true));
}
if (!IsRootWebRenderBridgeParent()) {
txn.Notify(wr::Checkpoint::SceneBuilt, MakeUnique<SceneBuiltNotification>(
this, wrEpoch, aTxnStartTime));
}
mApi->SendTransaction(txn);
// We will schedule generating a frame after the scene
// build is done, so we don't need to do it here.
} else if (observeLayersUpdate) {
mCompositorBridge->ObserveLayersUpdate(GetLayersId(),
mChildLayersObserverEpoch, true);
}
HoldPendingTransactionId(wrEpoch, aTransactionId, aContainsSVGGroup, aVsyncId,
aVsyncStartTime, aRefreshStartTime, aTxnStartTime,
aTxnURL, aFwdTime, mIsFirstPaint);
mIsFirstPaint = false;
if (!validTransaction) {
// Pretend we composited since someone is wating for this event,
// though DisplayList was not pushed to webrender.
if (CompositorBridgeParent* cbp = GetRootCompositorBridgeParent()) {
TimeStamp now = TimeStamp::Now();
cbp->NotifyPipelineRendered(mPipelineId, wrEpoch, VsyncId(), now, now,
now);
}
}
wr::IpcResourceUpdateQueue::ReleaseShmems(this, aSmallShmems);
wr::IpcResourceUpdateQueue::ReleaseShmems(this, aLargeShmems);
return IPC_OK();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvEmptyTransaction(
const FocusTarget& aFocusTarget, const ScrollUpdatesMap& aUpdates,
const uint32_t& aPaintSequenceNumber,
InfallibleTArray<WebRenderParentCommand>&& aCommands,
InfallibleTArray<OpDestroy>&& aToDestroy, const uint64_t& aFwdTransactionId,
const TransactionId& aTransactionId,
nsTArray<OpUpdateResource>&& aResourceUpdates,
nsTArray<RefCountedShmem>&& aSmallShmems,
nsTArray<ipc::Shmem>&& aLargeShmems, const wr::IdNamespace& aIdNamespace,
const VsyncId& aVsyncId, const TimeStamp& aVsyncStartTime,
const TimeStamp& aRefreshStartTime, const TimeStamp& aTxnStartTime,
const nsCString& aTxnURL, const TimeStamp& aFwdTime) {
if (mDestroyed) {
for (const auto& op : aToDestroy) {
DestroyActor(op);
}
return IPC_OK();
}
if (!IsRootWebRenderBridgeParent()) {
CrashReporter::AnnotateCrashReport(CrashReporter::Annotation::URL, aTxnURL);
}
AUTO_PROFILER_TRACING("Paint", "EmptyTransaction", GRAPHICS);
UpdateFwdTransactionId(aFwdTransactionId);
// This ensures that destroy operations are always processed. It is not safe
// to early-return without doing so.
AutoWebRenderBridgeParentAsyncMessageSender autoAsyncMessageSender(
this, &aToDestroy);
bool scheduleComposite = false;
UpdateAPZFocusState(aFocusTarget);
if (!aUpdates.empty()) {
// aUpdates is moved into this function but that is not reflected by the
// function signature due to the way the IPDL generator works. We remove the
// const so that we can move this structure all the way to the desired
// destination.
UpdateAPZScrollOffsets(std::move(const_cast<ScrollUpdatesMap&>(aUpdates)),
aPaintSequenceNumber);
}
wr::TransactionBuilder txn;
txn.SetLowPriority(!IsRootWebRenderBridgeParent());
// Update WrEpoch for UpdateResources() and ProcessWebRenderParentCommands().
// WrEpoch is used to manage ExternalImages lifetimes in
// AsyncImagePipelineManager.
Unused << GetNextWrEpoch();
if (!UpdateResources(aResourceUpdates, aSmallShmems, aLargeShmems, txn)) {
return IPC_FAIL(this, "Failed to deserialize resource updates");
}
if (!aCommands.IsEmpty()) {
mAsyncImageManager->SetCompositionTime(TimeStamp::Now());
if (!ProcessWebRenderParentCommands(aCommands, txn)) {
return IPC_FAIL(this, "Invalid parent command found");
}
}
if (ShouldParentObserveEpoch()) {
txn.Notify(
wr::Checkpoint::SceneBuilt,
MakeUnique<ScheduleObserveLayersUpdate>(
mCompositorBridge, GetLayersId(), mChildLayersObserverEpoch, true));
}
if (txn.IsResourceUpdatesEmpty()) {
// If TransactionBuilder does not have resource updates nor display list,
// ScheduleGenerateFrame is not triggered via SceneBuilder and there is no
// need to update WrEpoch.
// Then we want to rollback WrEpoch. See Bug 1490117.
RollbackWrEpoch();
} else {
// There are resource updates, then we update Epoch of transaction.
txn.UpdateEpoch(mPipelineId, mWrEpoch);
scheduleComposite = true;
}
if (!txn.IsEmpty()) {
mApi->SendTransaction(txn);
}
bool sendDidComposite = true;
if (scheduleComposite || !mPendingTransactionIds.empty()) {
// If we are going to kick off a new composite as a result of this
// transaction, or if there are already composite-triggering pending
// transactions inflight, then set sendDidComposite to false because we will
// send the DidComposite message after the composite occurs.
// If there are no pending transactions and we're not going to do a
// composite, then we leave sendDidComposite as true so we just send
// the DidComposite notification now.
sendDidComposite = false;
}
// Only register a value for CONTENT_FRAME_TIME telemetry if we actually drew
// something. It is for consistency with disabling WebRender.
HoldPendingTransactionId(mWrEpoch, aTransactionId, false, aVsyncId,
aVsyncStartTime, aRefreshStartTime, aTxnStartTime,
aTxnURL, aFwdTime,
/* aIsFirstPaint */ false,
/* aUseForTelemetry */ scheduleComposite);
if (scheduleComposite) {
// This is actually not necessary, since ScheduleGenerateFrame() is
// triggered via SceneBuilder thread. But if we remove it, it causes talos
// regression. The SceneBuilder thread seems not trigger next vsync right
// away. For now, we call ScheduleGenerateFrame() here.
ScheduleGenerateFrame();
} else if (sendDidComposite) {
// The only thing in the pending transaction id queue should be the entry
// we just added, and now we're going to pretend we rendered it
MOZ_ASSERT(mPendingTransactionIds.size() == 1);
if (CompositorBridgeParent* cbp = GetRootCompositorBridgeParent()) {
TimeStamp now = TimeStamp::Now();
cbp->NotifyPipelineRendered(mPipelineId, mWrEpoch, VsyncId(), now, now,
now);
}
}
wr::IpcResourceUpdateQueue::ReleaseShmems(this, aSmallShmems);
wr::IpcResourceUpdateQueue::ReleaseShmems(this, aLargeShmems);
return IPC_OK();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvSetFocusTarget(
const FocusTarget& aFocusTarget) {
UpdateAPZFocusState(aFocusTarget);
return IPC_OK();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvParentCommands(
nsTArray<WebRenderParentCommand>&& aCommands) {
if (mDestroyed) {
return IPC_OK();
}
wr::TransactionBuilder txn;
txn.SetLowPriority(!IsRootWebRenderBridgeParent());
if (!ProcessWebRenderParentCommands(aCommands, txn)) {
return IPC_FAIL(this, "Invalid parent command found");
}
mApi->SendTransaction(txn);
return IPC_OK();
}
bool WebRenderBridgeParent::ProcessWebRenderParentCommands(
const InfallibleTArray<WebRenderParentCommand>& aCommands,
wr::TransactionBuilder& aTxn) {
// Transaction for async image pipeline that uses ImageBridge always need to
// be non low priority.
wr::TransactionBuilder txnForImageBridge;
wr::AutoTransactionSender sender(mApi, &txnForImageBridge);
for (InfallibleTArray<WebRenderParentCommand>::index_type i = 0;
i < aCommands.Length(); ++i) {
const WebRenderParentCommand& cmd = aCommands[i];
switch (cmd.type()) {
case WebRenderParentCommand::TOpAddPipelineIdForCompositable: {
const OpAddPipelineIdForCompositable& op =
cmd.get_OpAddPipelineIdForCompositable();
AddPipelineIdForCompositable(op.pipelineId(), op.handle(), op.isAsync(),
aTxn, txnForImageBridge);
break;
}
case WebRenderParentCommand::TOpRemovePipelineIdForCompositable: {
const OpRemovePipelineIdForCompositable& op =
cmd.get_OpRemovePipelineIdForCompositable();
RemovePipelineIdForCompositable(op.pipelineId(), aTxn);
break;
}
case WebRenderParentCommand::TOpReleaseTextureOfImage: {
const OpReleaseTextureOfImage& op = cmd.get_OpReleaseTextureOfImage();
ReleaseTextureOfImage(op.key());
break;
}
case WebRenderParentCommand::TOpUpdateAsyncImagePipeline: {
const OpUpdateAsyncImagePipeline& op =
cmd.get_OpUpdateAsyncImagePipeline();
mAsyncImageManager->UpdateAsyncImagePipeline(
op.pipelineId(), op.scBounds(), op.scTransform(), op.scaleToSize(),
op.filter(), op.mixBlendMode());
mAsyncImageManager->ApplyAsyncImageForPipeline(op.pipelineId(), aTxn,
txnForImageBridge);
break;
}
case WebRenderParentCommand::TOpUpdatedAsyncImagePipeline: {
const OpUpdatedAsyncImagePipeline& op =
cmd.get_OpUpdatedAsyncImagePipeline();
mAsyncImageManager->ApplyAsyncImageForPipeline(op.pipelineId(), aTxn,
txnForImageBridge);
break;
}
case WebRenderParentCommand::TCompositableOperation: {
if (!ReceiveCompositableUpdate(cmd.get_CompositableOperation())) {
NS_ERROR("ReceiveCompositableUpdate failed");
}
break;
}
case WebRenderParentCommand::TOpAddCompositorAnimations: {
const OpAddCompositorAnimations& op =
cmd.get_OpAddCompositorAnimations();
CompositorAnimations data(std::move(op.data()));
// AnimationHelper::GetNextCompositorAnimationsId() encodes the child
// process PID in the upper 32 bits of the id, verify that this is as
// expected.
if ((data.id() >> 32) != (uint64_t)OtherPid()) {
return false;
}
if (data.animations().Length()) {
mAnimStorage->SetAnimations(data.id(), data.animations());
const auto activeAnim = mActiveAnimations.find(data.id());
if (activeAnim == mActiveAnimations.end()) {
mActiveAnimations.emplace(data.id(), mWrEpoch);
} else {
// Update wr::Epoch if the animation already exists.
activeAnim->second = mWrEpoch;
}
}
break;
}
default: {
// other commands are handle on the child
break;
}
}
}
return true;
}
void WebRenderBridgeParent::FlushSceneBuilds() {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
// Since we are sending transactions through the scene builder thread, we need
// to block until all the inflight transactions have been processed. This
// flush message blocks until all previously sent scenes have been built
// and received by the render backend thread.
mApi->FlushSceneBuilder();
// The post-swap hook for async-scene-building calls the
// ScheduleRenderOnCompositorThread function from the scene builder thread,
// which then triggers a call to ScheduleGenerateFrame() on the compositor
// thread. But since *this* function is running on the compositor thread,
// that scheduling will not happen until this call stack unwinds (or we
// could spin a nested event loop, but that's more messy). Instead, we
// simulate it ourselves by calling ScheduleGenerateFrame() directly.
// Note also that the post-swap hook will run and do another
// ScheduleGenerateFrame() after we unwind here, so we will end up with an
// extra render/composite that is probably avoidable, but in practice we
// shouldn't be calling this function all that much in production so this
// is probably fine. If it becomes an issue we can add more state tracking
// machinery to optimize it away.
ScheduleGenerateFrame();
}
void WebRenderBridgeParent::FlushFrameGeneration() {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
MOZ_ASSERT(IsRootWebRenderBridgeParent()); // This function is only useful on
// the root WRBP
// This forces a new GenerateFrame transaction to be sent to the render
// backend thread, if one is pending. This doesn't block on any other threads.
if (mCompositorScheduler->NeedsComposite()) {
mCompositorScheduler->CancelCurrentCompositeTask();
// Update timestamp of scheduler for APZ and animation.
mCompositorScheduler->UpdateLastComposeTime();
MaybeGenerateFrame(VsyncId(), /* aForceGenerateFrame */ true);
}
}
void WebRenderBridgeParent::FlushFramePresentation() {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
// This sends a message to the render backend thread to send a message
// to the renderer thread, and waits for that message to be processed. So
// this effectively blocks on the render backend and renderer threads,
// following the same codepath that WebRender takes to render and composite
// a frame.
mApi->WaitFlushed();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvGetSnapshot(
PTextureParent* aTexture) {
if (mDestroyed) {
return IPC_OK();
}
MOZ_ASSERT(!mPaused);
// This function should only get called in the root WRBP. If this function
// gets called in a non-root WRBP, we will set mForceRendering in this WRBP
// but it will have no effect because CompositeToTarget (which reads the
// flag) only gets invoked in the root WRBP. So we assert that this is the
// root WRBP (i.e. has a non-null mWidget) to catch violations of this rule.
MOZ_ASSERT(IsRootWebRenderBridgeParent());
RefPtr<TextureHost> texture = TextureHost::AsTextureHost(aTexture);
if (!texture) {
// 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);
}
// XXX Add other TextureHost supports.
// Only BufferTextureHost is supported now.
BufferTextureHost* bufferTexture = texture->AsBufferTextureHost();
if (!bufferTexture) {
// 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);
}
TimeStamp start = TimeStamp::Now();
MOZ_ASSERT(bufferTexture->GetBufferDescriptor().type() ==
BufferDescriptor::TRGBDescriptor);
DebugOnly<uint32_t> stride = ImageDataSerializer::GetRGBStride(
bufferTexture->GetBufferDescriptor().get_RGBDescriptor());
uint8_t* buffer = bufferTexture->GetBuffer();
IntSize size = bufferTexture->GetSize();
// We only support B8G8R8A8 for now.
MOZ_ASSERT(buffer);
MOZ_ASSERT(bufferTexture->GetFormat() == SurfaceFormat::B8G8R8A8);
uint32_t buffer_size = size.width * size.height * 4;
// Assert the stride of the buffer is what webrender expects
MOZ_ASSERT((uint32_t)(size.width * 4) == stride);
FlushSceneBuilds();
FlushFrameGeneration();
mApi->Readback(start, size, Range<uint8_t>(buffer, buffer_size));
return IPC_OK();
}
void WebRenderBridgeParent::AddPipelineIdForCompositable(
const wr::PipelineId& aPipelineId, const CompositableHandle& aHandle,
const bool& aAsync, wr::TransactionBuilder& aTxn,
wr::TransactionBuilder& aTxnForImageBridge) {
if (mDestroyed) {
return;
}
MOZ_ASSERT(mAsyncCompositables.find(wr::AsUint64(aPipelineId)) ==
mAsyncCompositables.end());
RefPtr<CompositableHost> host;
if (aAsync) {
RefPtr<ImageBridgeParent> imageBridge =
ImageBridgeParent::GetInstance(OtherPid());
if (!imageBridge) {
return;
}
host = imageBridge->FindCompositable(aHandle);
} else {
host = FindCompositable(aHandle);
}
if (!host) {
return;
}
WebRenderImageHost* wrHost = host->AsWebRenderImageHost();
MOZ_ASSERT(wrHost);
if (!wrHost) {
gfxCriticalNote
<< "Incompatible CompositableHost at WebRenderBridgeParent.";
}
if (!wrHost) {
return;
}
wrHost->SetWrBridge(this);
wrHost->EnableUseAsyncImagePipeline();
mAsyncCompositables.emplace(wr::AsUint64(aPipelineId), wrHost);
mAsyncImageManager->AddAsyncImagePipeline(aPipelineId, wrHost);
// If this is being called from WebRenderBridgeParent::RecvSetDisplayList,
// then aTxn might contain a display list that references pipelines that
// we just added to the async image manager.
// If we send the display list alone then WR will not yet have the content for
// the pipelines and so it will emit errors; the SetEmptyDisplayList call
// below ensure that we provide its content to WR as part of the same
// transaction.
mAsyncImageManager->SetEmptyDisplayList(aPipelineId, aTxn,
aTxnForImageBridge);
return;
}
void WebRenderBridgeParent::RemovePipelineIdForCompositable(
const wr::PipelineId& aPipelineId, wr::TransactionBuilder& aTxn) {
if (mDestroyed) {
return;
}
auto it = mAsyncCompositables.find(wr::AsUint64(aPipelineId));
if (it == mAsyncCompositables.end()) {
return;
}
RefPtr<WebRenderImageHost>& wrHost = it->second;
wrHost->ClearWrBridge();
mAsyncImageManager->RemoveAsyncImagePipeline(aPipelineId, aTxn);
aTxn.RemovePipeline(aPipelineId);
mAsyncCompositables.erase(wr::AsUint64(aPipelineId));
return;
}
void WebRenderBridgeParent::DeleteImage(const ImageKey& aKey,
wr::TransactionBuilder& aUpdates) {
if (mDestroyed) {
return;
}
auto it = mSharedSurfaceIds.find(wr::AsUint64(aKey));
if (it != mSharedSurfaceIds.end()) {
mAsyncImageManager->HoldExternalImage(mPipelineId, mWrEpoch, it->second);
mSharedSurfaceIds.erase(it);
}
aUpdates.DeleteImage(aKey);
}
void WebRenderBridgeParent::ReleaseTextureOfImage(const wr::ImageKey& aKey) {
if (mDestroyed) {
return;
}
uint64_t id = wr::AsUint64(aKey);
CompositableTextureHostRef texture;
WebRenderTextureHost* wrTexture = nullptr;
auto it = mTextureHosts.find(id);
if (it != mTextureHosts.end()) {
wrTexture = (*it).second->AsWebRenderTextureHost();
}
if (wrTexture) {
mAsyncImageManager->HoldExternalImage(mPipelineId, mWrEpoch, wrTexture);
}
mTextureHosts.erase(id);
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvSetLayersObserverEpoch(
const LayersObserverEpoch& aChildEpoch) {
if (mDestroyed) {
return IPC_OK();
}
mChildLayersObserverEpoch = aChildEpoch;
return IPC_OK();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvClearCachedResources() {
if (mDestroyed) {
return IPC_OK();
}
// Clear resources
wr::TransactionBuilder txn;
txn.SetLowPriority(true);
txn.ClearDisplayList(GetNextWrEpoch(), mPipelineId);
txn.Notify(
wr::Checkpoint::SceneBuilt,
MakeUnique<ScheduleObserveLayersUpdate>(
mCompositorBridge, GetLayersId(), mChildLayersObserverEpoch, false));
mApi->SendTransaction(txn);
// Schedule generate frame to clean up Pipeline
ScheduleGenerateFrame();
// Remove animations.
for (const auto& id : mActiveAnimations) {
mAnimStorage->ClearById(id.first);
}
mActiveAnimations.clear();
std::queue<CompositorAnimationIdsForEpoch>().swap(
mCompositorAnimationsToDelete); // clear queue
return IPC_OK();
}
wr::Epoch WebRenderBridgeParent::UpdateWebRender(
CompositorVsyncScheduler* aScheduler, wr::WebRenderAPI* aApi,
AsyncImagePipelineManager* aImageMgr,
CompositorAnimationStorage* aAnimStorage,
const TextureFactoryIdentifier& aTextureFactoryIdentifier) {
MOZ_ASSERT(!IsRootWebRenderBridgeParent());
MOZ_ASSERT(aScheduler);
MOZ_ASSERT(aApi);
MOZ_ASSERT(aImageMgr);
MOZ_ASSERT(aAnimStorage);
if (mDestroyed) {
return mWrEpoch;
}
// Update id name space to identify obsoleted keys.
// Since usage of invalid keys could cause crash in webrender.
mIdNamespace = aApi->GetNamespace();
// XXX Remove it when webrender supports sharing/moving Keys between different
// webrender instances.
// XXX It requests client to update/reallocate webrender related resources,
// but parent side does not wait end of the update.
// The code could become simpler if we could serialise old keys deallocation
// and new keys allocation. But we do not do it, it is because client side
// deallocate old layers/webrender keys after new layers/webrender keys
// allocation. Without client side's layout refactoring, we could not finish
// all old layers/webrender keys removals before new layer/webrender keys
// allocation. In future, we could address the problem.
Unused << SendWrUpdated(mIdNamespace, aTextureFactoryIdentifier);
CompositorBridgeParentBase* cBridge = mCompositorBridge;
// XXX Stop to clear resources if webreder supports resources sharing between
// different webrender instances.
ClearResources();
mCompositorBridge = cBridge;
mCompositorScheduler = aScheduler;
mApi = aApi;
mAsyncImageManager = aImageMgr;
mAnimStorage = aAnimStorage;
// Register pipeline to updated AsyncImageManager.
mAsyncImageManager->AddPipeline(mPipelineId, this);
return GetNextWrEpoch(); // Update webrender epoch
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvScheduleComposite() {
ScheduleGenerateFrame();
return IPC_OK();
}
void WebRenderBridgeParent::ScheduleForcedGenerateFrame() {
if (mDestroyed) {
return;
}
wr::TransactionBuilder fastTxn(/* aUseSceneBuilderThread */ false);
fastTxn.InvalidateRenderedFrame();
mApi->SendTransaction(fastTxn);
ScheduleGenerateFrame();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvCapture() {
if (!mDestroyed) {
mApi->Capture();
}
return IPC_OK();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvSyncWithCompositor() {
FlushSceneBuilds();
if (RefPtr<WebRenderBridgeParent> root = GetRootWebRenderBridgeParent()) {
root->FlushFrameGeneration();
}
FlushFramePresentation();
// Finally, we force the AsyncImagePipelineManager to handle all the
// pipeline updates produced in the last step, so that it frees any
// unneeded textures. Then we can return from this sync IPC call knowing
// that we've done everything we can to flush stuff on the compositor.
mAsyncImageManager->ProcessPipelineUpdates();
return IPC_OK();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvSetConfirmedTargetAPZC(
const uint64_t& aBlockId, nsTArray<ScrollableLayerGuid>&& aTargets) {
if (mDestroyed) {
return IPC_OK();
}
mCompositorBridge->SetConfirmedTargetAPZC(GetLayersId(), aBlockId, aTargets);
return IPC_OK();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvSetTestSampleTime(
const TimeStamp& aTime) {
if (!mCompositorBridge->SetTestSampleTime(GetLayersId(), aTime)) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvLeaveTestMode() {
mCompositorBridge->LeaveTestMode(GetLayersId());
return IPC_OK();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvGetAnimationValue(
const uint64_t& aCompositorAnimationsId, OMTAValue* aValue) {
if (mDestroyed) {
return IPC_FAIL_NO_REASON(this);
}
MOZ_ASSERT(mAnimStorage);
if (RefPtr<WebRenderBridgeParent> root = GetRootWebRenderBridgeParent()) {
root->AdvanceAnimations();
} else {
AdvanceAnimations();
}
*aValue = mAnimStorage->GetOMTAValue(aCompositorAnimationsId);
return IPC_OK();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvSetAsyncScrollOffset(
const ScrollableLayerGuid::ViewID& aScrollId, const float& aX,
const float& aY) {
if (mDestroyed) {
return IPC_OK();
}
mCompositorBridge->SetTestAsyncScrollOffset(GetLayersId(), aScrollId,
CSSPoint(aX, aY));
return IPC_OK();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvSetAsyncZoom(
const ScrollableLayerGuid::ViewID& aScrollId, const float& aZoom) {
if (mDestroyed) {
return IPC_OK();
}
mCompositorBridge->SetTestAsyncZoom(GetLayersId(), aScrollId,
LayerToParentLayerScale(aZoom));
return IPC_OK();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvFlushApzRepaints() {
if (mDestroyed) {
return IPC_OK();
}
mCompositorBridge->FlushApzRepaints(GetLayersId());
return IPC_OK();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvGetAPZTestData(
APZTestData* aOutData) {
mCompositorBridge->GetAPZTestData(GetLayersId(), aOutData);
return IPC_OK();
}
void WebRenderBridgeParent::ActorDestroy(ActorDestroyReason aWhy) { Destroy(); }
bool WebRenderBridgeParent::AdvanceAnimations() {
if (CompositorBridgeParent* cbp = GetRootCompositorBridgeParent()) {
Maybe<TimeStamp> testingTimeStamp = cbp->GetTestingTimeStamp();
if (testingTimeStamp) {
// If we are on testing refresh mode, use the testing time stamp. And
// also we don't update mPreviousFrameTimeStamp since unlike normal
// refresh mode, on the testing mode animations on the compositor are
// synchronously composed, so we don't need to worry about the time gap
// between the main thread and compositor thread.
return AnimationHelper::SampleAnimations(mAnimStorage, *testingTimeStamp,
*testingTimeStamp);
}
}
TimeStamp lastComposeTime = mCompositorScheduler->GetLastComposeTime();
const bool isAnimating = AnimationHelper::SampleAnimations(
mAnimStorage, mPreviousFrameTimeStamp, lastComposeTime);
// Reset the previous time stamp if we don't already have any running
// animations to avoid using the time which is far behind for newly
// started animations.
mPreviousFrameTimeStamp = isAnimating ? lastComposeTime : TimeStamp();
return isAnimating;
}
bool WebRenderBridgeParent::SampleAnimations(
nsTArray<wr::WrOpacityProperty>& aOpacityArray,
nsTArray<wr::WrTransformProperty>& aTransformArray) {
const bool isAnimating = AdvanceAnimations();
// return the animated data if has
if (mAnimStorage->AnimatedValueCount()) {
for (auto iter = mAnimStorage->ConstAnimatedValueTableIter(); !iter.Done();
iter.Next()) {
AnimatedValue* value = iter.UserData();
if (value->mType == AnimatedValue::TRANSFORM) {
aTransformArray.AppendElement(wr::ToWrTransformProperty(
iter.Key(), value->mTransform.mTransformInDevSpace));
} else if (value->mType == AnimatedValue::OPACITY) {
aOpacityArray.AppendElement(
wr::ToWrOpacityProperty(iter.Key(), value->mOpacity));
}
}
}
return isAnimating;
}
void WebRenderBridgeParent::CompositeIfNeeded() {
if (mSkippedComposite) {
mSkippedComposite = false;
CompositeToTarget(mSkippedCompositeId, nullptr, nullptr);
}
}
void WebRenderBridgeParent::CompositeToTarget(VsyncId aId,
gfx::DrawTarget* aTarget,
const gfx::IntRect* aRect) {
// This function should only get called in the root WRBP
MOZ_ASSERT(IsRootWebRenderBridgeParent());
// The two arguments are part of the CompositorVsyncSchedulerOwner API but in
// this implementation they should never be non-null.
MOZ_ASSERT(aTarget == nullptr);
MOZ_ASSERT(aRect == nullptr);
AUTO_PROFILER_TRACING("Paint", "CompositeToTarget", GRAPHICS);
if (mPaused || !mReceivedDisplayList) {
mPreviousFrameTimeStamp = TimeStamp();
return;
}
if (mSkippedComposite ||
wr::RenderThread::Get()->TooManyPendingFrames(mApi->GetId())) {
// Render thread is busy, try next time.
mSkippedComposite = true;
mSkippedCompositeId = aId;
mPreviousFrameTimeStamp = TimeStamp();
// Record that we skipped presenting a frame for
// all pending transactions that have finished scene building.
for (auto& id : mPendingTransactionIds) {
if (id.mSceneBuiltTime) {
id.mSkippedComposites++;
}
}
return;
}
MaybeGenerateFrame(aId, /* aForceGenerateFrame */ false);
}
TimeDuration WebRenderBridgeParent::GetVsyncInterval() const {
// This function should only get called in the root WRBP
MOZ_ASSERT(IsRootWebRenderBridgeParent());
if (CompositorBridgeParent* cbp = GetRootCompositorBridgeParent()) {
return cbp->GetVsyncInterval();
}
return TimeDuration();
}
void WebRenderBridgeParent::MaybeGenerateFrame(VsyncId aId,
bool aForceGenerateFrame) {
// This function should only get called in the root WRBP
MOZ_ASSERT(IsRootWebRenderBridgeParent());
TimeStamp start = TimeStamp::Now();
mAsyncImageManager->SetCompositionTime(start);
// Ensure GenerateFrame is handled on the render backend thread rather
// than going through the scene builder thread. That way we continue
// generating frames with the old scene even during slow scene builds.
bool useSceneBuilderThread = false;
wr::TransactionBuilder fastTxn(useSceneBuilderThread);
// Handle transaction that is related to DisplayList.
wr::TransactionBuilder sceneBuilderTxn;
wr::AutoTransactionSender sender(mApi, &sceneBuilderTxn);
// Adding and updating wr::ImageKeys of ImageHosts that uses ImageBridge are
// done without using transaction of scene builder thread. With it, updating
// of video frame becomes faster.
mAsyncImageManager->ApplyAsyncImagesOfImageBridge(sceneBuilderTxn, fastTxn);
if (!mAsyncImageManager->GetCompositeUntilTime().IsNull()) {
// Trigger another CompositeToTarget() call because there might be another
// frame that we want to generate after this one.
// It will check if we actually want to generate the frame or not.
mCompositorScheduler->ScheduleComposition();
}
if (!mAsyncImageManager->GetAndResetWillGenerateFrame() &&
fastTxn.IsEmpty() && !aForceGenerateFrame) {
// Could skip generating frame now.
mPreviousFrameTimeStamp = TimeStamp();
return;
}
nsTArray<wr::WrOpacityProperty> opacityArray;
nsTArray<wr::WrTransformProperty> transformArray;
if (SampleAnimations(opacityArray, transformArray)) {
ScheduleGenerateFrame();
}
// We do this even if the arrays are empty, because it will clear out any
// previous properties store on the WR side, which is desirable.
fastTxn.UpdateDynamicProperties(opacityArray, transformArray);
SetAPZSampleTime();
wr::RenderThread::Get()->IncPendingFrameCount(mApi->GetId(), aId, start);
#if defined(ENABLE_FRAME_LATENCY_LOG)
auto startTime = TimeStamp::Now();
mApi->SetFrameStartTime(startTime);
#endif
fastTxn.GenerateFrame();
mApi->SendTransaction(fastTxn);
mMostRecentComposite = TimeStamp::Now();
}
void WebRenderBridgeParent::HoldPendingTransactionId(
const wr::Epoch& aWrEpoch, TransactionId aTransactionId,
bool aContainsSVGGroup, const VsyncId& aVsyncId,
const TimeStamp& aVsyncStartTime, const TimeStamp& aRefreshStartTime,
const TimeStamp& aTxnStartTime, const nsCString& aTxnURL,
const TimeStamp& aFwdTime, const bool aIsFirstPaint,
const bool aUseForTelemetry) {
MOZ_ASSERT(aTransactionId > LastPendingTransactionId());
mPendingTransactionIds.push_back(PendingTransactionId(
aWrEpoch, aTransactionId, aContainsSVGGroup, aVsyncId, aVsyncStartTime,
aRefreshStartTime, aTxnStartTime, aTxnURL, aFwdTime, aIsFirstPaint,
aUseForTelemetry));
}
TransactionId WebRenderBridgeParent::LastPendingTransactionId() {
TransactionId id{0};
if (!mPendingTransactionIds.empty()) {
id = mPendingTransactionIds.back().mId;
}
return id;
}
void WebRenderBridgeParent::NotifySceneBuiltForEpoch(
const wr::Epoch& aEpoch, const TimeStamp& aEndTime) {
for (auto& id : mPendingTransactionIds) {
if (id.mEpoch.mHandle == aEpoch.mHandle) {
id.mSceneBuiltTime = aEndTime;
break;
}
}
}
void WebRenderBridgeParent::NotifyDidSceneBuild(
RefPtr<wr::WebRenderPipelineInfo> aInfo) {
MOZ_ASSERT(IsRootWebRenderBridgeParent());
if (!mCompositorScheduler) {
return;
}
mAsyncImageManager->SetWillGenerateFrame();
// If the scheduler has a composite more recent than our last composite (which
// we missed), and we're within the threshold ms of the last vsync, then
// kick of a late composite.
TimeStamp lastVsync = mCompositorScheduler->GetLastVsyncTime();
VsyncId lastVsyncId = mCompositorScheduler->GetLastVsyncId();
if (lastVsyncId == VsyncId() || !mMostRecentComposite ||
mMostRecentComposite >= lastVsync ||
((TimeStamp::Now() - lastVsync).ToMilliseconds() >
gfxPrefs::WebRenderLateSceneBuildThreshold())) {
mCompositorScheduler->ScheduleComposition();
return;
}
// Look through all the pipelines contained within the built scene
// and check which vsync they initiated from.
auto info = aInfo->Raw();
for (uintptr_t i = 0; i < info.epochs.length; i++) {
auto epoch = info.epochs.data[i];
WebRenderBridgeParent* wrBridge = this;
if (!(epoch.pipeline_id == PipelineId())) {
wrBridge = mAsyncImageManager->GetWrBridge(epoch.pipeline_id);
}
if (wrBridge) {
VsyncId startId = wrBridge->GetVsyncIdForEpoch(epoch.epoch);
// If any of the pipelines started building on the current vsync (i.e
// we did all of display list building and scene building within the
// threshold), then don't do an early composite.
if (startId == lastVsyncId) {
mCompositorScheduler->ScheduleComposition();
return;
}
}
}
CompositeToTarget(mCompositorScheduler->GetLastVsyncId(), nullptr, nullptr);
}
TransactionId WebRenderBridgeParent::FlushTransactionIdsForEpoch(
const wr::Epoch& aEpoch, const VsyncId& aCompositeStartId,
const TimeStamp& aCompositeStartTime, const TimeStamp& aRenderStartTime,
const TimeStamp& aEndTime, UiCompositorControllerParent* aUiController,
wr::RendererStats* aStats, nsTArray<FrameStats>* aOutputStats) {
TransactionId id{0};
while (!mPendingTransactionIds.empty()) {
const auto& transactionId = mPendingTransactionIds.front();
if (aEpoch.mHandle < transactionId.mEpoch.mHandle) {
break;
}
if (!IsRootWebRenderBridgeParent() && !mVsyncRate.IsZero() &&
transactionId.mUseForTelemetry) {
auto fullPaintTime =
transactionId.mSceneBuiltTime
? transactionId.mSceneBuiltTime - transactionId.mTxnStartTime
: TimeDuration::FromMilliseconds(0);
int32_t contentFrameTime = RecordContentFrameTime(
transactionId.mVsyncId, transactionId.mVsyncStartTime,
transactionId.mTxnStartTime, aCompositeStartId, aEndTime,
fullPaintTime, mVsyncRate, transactionId.mContainsSVGGroup, true,
aStats);
if (contentFrameTime > 200) {
aOutputStats->AppendElement(FrameStats(
transactionId.mId, aCompositeStartTime, aRenderStartTime, aEndTime,
contentFrameTime,
aStats ? (double(aStats->resource_upload_time) / 1000000.0) : 0.0,
aStats ? (double(aStats->gpu_cache_upload_time) / 1000000.0) : 0.0,
transactionId.mTxnStartTime, transactionId.mRefreshStartTime,
transactionId.mFwdTime, transactionId.mSceneBuiltTime,
transactionId.mSkippedComposites, transactionId.mTxnURL));
wr::RenderThread::Get()->NotifySlowFrame(mApi->GetId());
}
}
#if defined(ENABLE_FRAME_LATENCY_LOG)
if (transactionId.mRefreshStartTime) {
int32_t latencyMs =
lround((aEndTime - transactionId.mRefreshStartTime).ToMilliseconds());
printf_stderr(
"From transaction start to end of generate frame latencyMs %d this "
"%p\n",
latencyMs, this);
}
if (transactionId.mFwdTime) {
int32_t latencyMs =
lround((aEndTime - transactionId.mFwdTime).ToMilliseconds());
printf_stderr(
"From forwarding transaction to end of generate frame latencyMs %d "
"this %p\n",
latencyMs, this);
}
#endif
if (aUiController && transactionId.mIsFirstPaint) {
aUiController->NotifyFirstPaint();
}
id = transactionId.mId;
mPendingTransactionIds.pop_front();
}
return id;
}
LayersId WebRenderBridgeParent::GetLayersId() const {
return wr::AsLayersId(mPipelineId);
}
void WebRenderBridgeParent::ScheduleGenerateFrame() {
if (mCompositorScheduler) {
mAsyncImageManager->SetWillGenerateFrame();
mCompositorScheduler->ScheduleComposition();
}
}
void WebRenderBridgeParent::FlushRendering(bool aWaitForPresent) {
if (mDestroyed) {
return;
}
// This gets called during e.g. window resizes, so we need to flush the
// scene (which has the display list at the new window size).
FlushSceneBuilds();
FlushFrameGeneration();
if (aWaitForPresent) {
FlushFramePresentation();
}
}
void WebRenderBridgeParent::Pause() {
MOZ_ASSERT(IsRootWebRenderBridgeParent());
#ifdef MOZ_WIDGET_ANDROID
if (!IsRootWebRenderBridgeParent() || mDestroyed) {
return;
}
mApi->Pause();
#endif
mPaused = true;
}
bool WebRenderBridgeParent::Resume() {
MOZ_ASSERT(IsRootWebRenderBridgeParent());
#ifdef MOZ_WIDGET_ANDROID
if (!IsRootWebRenderBridgeParent() || mDestroyed) {
return false;
}
if (!mApi->Resume()) {
return false;
}
#endif
mPaused = false;
return true;
}
void WebRenderBridgeParent::ClearResources() {
if (!mApi) {
return;
}
wr::Epoch wrEpoch = GetNextWrEpoch();
wr::TransactionBuilder txn;
txn.SetLowPriority(true);
txn.ClearDisplayList(wrEpoch, mPipelineId);
mReceivedDisplayList = false;
// Schedule generate frame to clean up Pipeline
ScheduleGenerateFrame();
// WrFontKeys and WrImageKeys are deleted during WebRenderAPI destruction.
for (const auto& entry : mTextureHosts) {
WebRenderTextureHost* wrTexture = entry.second->AsWebRenderTextureHost();
MOZ_ASSERT(wrTexture);
if (wrTexture) {
mAsyncImageManager->HoldExternalImage(mPipelineId, wrEpoch, wrTexture);
}
}
mTextureHosts.clear();
for (const auto& entry : mAsyncCompositables) {
wr::PipelineId pipelineId = wr::AsPipelineId(entry.first);
RefPtr<WebRenderImageHost> host = entry.second;
host->ClearWrBridge();
mAsyncImageManager->RemoveAsyncImagePipeline(pipelineId, txn);
txn.RemovePipeline(pipelineId);
}
mAsyncCompositables.clear();
for (const auto& entry : mSharedSurfaceIds) {
mAsyncImageManager->HoldExternalImage(mPipelineId, mWrEpoch, entry.second);
}
mSharedSurfaceIds.clear();
mAsyncImageManager->RemovePipeline(mPipelineId, wrEpoch);
txn.RemovePipeline(mPipelineId);
mApi->SendTransaction(txn);
for (const auto& id : mActiveAnimations) {
mAnimStorage->ClearById(id.first);
}
mActiveAnimations.clear();
std::queue<CompositorAnimationIdsForEpoch>().swap(
mCompositorAnimationsToDelete); // clear queue
if (IsRootWebRenderBridgeParent()) {
mCompositorScheduler->Destroy();
}
mAnimStorage = nullptr;
mCompositorScheduler = nullptr;
mAsyncImageManager = nullptr;
mApi = nullptr;
mCompositorBridge = nullptr;
}
bool WebRenderBridgeParent::ShouldParentObserveEpoch() {
if (mParentLayersObserverEpoch == mChildLayersObserverEpoch) {
return false;
}
mParentLayersObserverEpoch = mChildLayersObserverEpoch;
return true;
}
void WebRenderBridgeParent::SendAsyncMessage(
const InfallibleTArray<AsyncParentMessageData>& aMessage) {
MOZ_ASSERT_UNREACHABLE("unexpected to be called");
}
void WebRenderBridgeParent::SendPendingAsyncMessages() {
MOZ_ASSERT(mCompositorBridge);
mCompositorBridge->SendPendingAsyncMessages();
}
void WebRenderBridgeParent::SetAboutToSendAsyncMessages() {
MOZ_ASSERT(mCompositorBridge);
mCompositorBridge->SetAboutToSendAsyncMessages();
}
void WebRenderBridgeParent::NotifyNotUsed(PTextureParent* aTexture,
uint64_t aTransactionId) {
MOZ_ASSERT_UNREACHABLE("unexpected to be called");
}
base::ProcessId WebRenderBridgeParent::GetChildProcessId() {
return OtherPid();
}
bool WebRenderBridgeParent::IsSameProcess() const {
return OtherPid() == base::GetCurrentProcId();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvNewCompositable(
const CompositableHandle& aHandle, const TextureInfo& aInfo) {
if (mDestroyed) {
return IPC_OK();
}
if (!AddCompositable(aHandle, aInfo, /* aUseWebRender */ true)) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
mozilla::ipc::IPCResult WebRenderBridgeParent::RecvReleaseCompositable(
const CompositableHandle& aHandle) {
if (mDestroyed) {
return IPC_OK();
}
ReleaseCompositable(aHandle);
return IPC_OK();
}
TextureFactoryIdentifier WebRenderBridgeParent::GetTextureFactoryIdentifier() {
MOZ_ASSERT(mApi);
return TextureFactoryIdentifier(
LayersBackend::LAYERS_WR, XRE_GetProcessType(), mApi->GetMaxTextureSize(),
false, mApi->GetUseANGLE(), mApi->GetUseDComp(), false, false, false,
mApi->GetSyncHandle());
}
wr::Epoch WebRenderBridgeParent::GetNextWrEpoch() {
MOZ_RELEASE_ASSERT(mWrEpoch.mHandle != UINT32_MAX);
mWrEpoch.mHandle++;
return mWrEpoch;
}
void WebRenderBridgeParent::RollbackWrEpoch() {
MOZ_RELEASE_ASSERT(mWrEpoch.mHandle != 0);
mWrEpoch.mHandle--;
}
void WebRenderBridgeParent::ExtractImageCompositeNotifications(
nsTArray<ImageCompositeNotificationInfo>* aNotifications) {
MOZ_ASSERT(IsRootWebRenderBridgeParent());
if (mDestroyed) {
return;
}
mAsyncImageManager->FlushImageNotifications(aNotifications);
}
} // namespace layers
} // namespace mozilla
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