diff options
Diffstat (limited to 'gfx/layers/ipc/ContentCompositorBridgeParent.cpp')
| -rw-r--r-- | gfx/layers/ipc/ContentCompositorBridgeParent.cpp | 460 |
1 files changed, 460 insertions, 0 deletions
diff --git a/gfx/layers/ipc/ContentCompositorBridgeParent.cpp b/gfx/layers/ipc/ContentCompositorBridgeParent.cpp new file mode 100644 index 0000000000..9c09d6ac90 --- /dev/null +++ b/gfx/layers/ipc/ContentCompositorBridgeParent.cpp @@ -0,0 +1,460 @@ +/* -*- 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/ContentCompositorBridgeParent.h" + +#include <stdint.h> // for uint64_t + +#include "apz/src/APZCTreeManager.h" // for APZCTreeManager +#include "gfxUtils.h" +#ifdef XP_WIN +# include "mozilla/gfx/DeviceManagerDx.h" // for DeviceManagerDx +# include "mozilla/layers/ImageDataSerializer.h" +#endif +#include "mozilla/layers/AnimationHelper.h" // for CompositorAnimationStorage +#include "mozilla/layers/APZCTreeManagerParent.h" // for APZCTreeManagerParent +#include "mozilla/layers/APZUpdater.h" // for APZUpdater +#include "mozilla/layers/CompositorOptions.h" +#include "mozilla/layers/CompositorThread.h" +#include "mozilla/layers/LayerTreeOwnerTracker.h" +#include "mozilla/layers/RemoteContentController.h" +#include "mozilla/layers/WebRenderBridgeParent.h" +#include "mozilla/layers/AsyncImagePipelineManager.h" +#include "mozilla/mozalloc.h" // for operator new, etc +#include "nsDebug.h" // for NS_ASSERTION, etc +#include "nsTArray.h" // for nsTArray +#include "nsXULAppAPI.h" // for XRE_GetIOMessageLoop +#include "mozilla/Unused.h" +#include "mozilla/StaticPrefs_dom.h" +#include "mozilla/StaticPtr.h" +#include "mozilla/Telemetry.h" +#include "mozilla/BaseProfilerMarkerTypes.h" +#include "GeckoProfiler.h" + +namespace mozilla::layers { + +// defined in CompositorBridgeParent.cpp +using LayerTreeMap = std::map<LayersId, CompositorBridgeParent::LayerTreeState>; +extern LayerTreeMap sIndirectLayerTrees; +extern StaticAutoPtr<mozilla::Monitor> sIndirectLayerTreesLock; +void EraseLayerState(LayersId aId); + +void ContentCompositorBridgeParent::ActorDestroy(ActorDestroyReason aWhy) { + mCanSend = false; + + // We must keep this object alive untill the code handling message + // reception is finished on this thread. + GetCurrentSerialEventTarget()->Dispatch(NewRunnableMethod( + "layers::ContentCompositorBridgeParent::DeferredDestroy", this, + &ContentCompositorBridgeParent::DeferredDestroy)); +} + +PAPZCTreeManagerParent* +ContentCompositorBridgeParent::AllocPAPZCTreeManagerParent( + const LayersId& aLayersId) { + // Check to see if this child process has access to this layer tree. + if (!LayerTreeOwnerTracker::Get()->IsMapped(aLayersId, OtherPid())) { + NS_ERROR( + "Unexpected layers id in AllocPAPZCTreeManagerParent; dropping " + "message..."); + return nullptr; + } + + MonitorAutoLock lock(*sIndirectLayerTreesLock); + CompositorBridgeParent::LayerTreeState& state = + sIndirectLayerTrees[aLayersId]; + + // If the widget has shutdown its compositor, we may not have had a chance yet + // to unmap our layers id, and we could get here without a parent compositor. + // In this case return an empty APZCTM. + if (!state.mParent) { + // Note: we immediately call ClearTree since otherwise the APZCTM will + // retain a reference to itself, through the checkerboard observer. + LayersId dummyId{0}; + const bool connectedToWebRender = false; + RefPtr<APZCTreeManager> temp = new APZCTreeManager(dummyId); + RefPtr<APZUpdater> tempUpdater = new APZUpdater(temp, connectedToWebRender); + tempUpdater->ClearTree(dummyId); + return new APZCTreeManagerParent(aLayersId, temp, tempUpdater); + } + + // If we do not have APZ enabled, we should gracefully fail. + if (!state.mParent->GetOptions().UseAPZ()) { + return nullptr; + } + + state.mParent->AllocateAPZCTreeManagerParent(lock, aLayersId, state); + return state.mApzcTreeManagerParent; +} + +bool ContentCompositorBridgeParent::DeallocPAPZCTreeManagerParent( + PAPZCTreeManagerParent* aActor) { + APZCTreeManagerParent* parent = static_cast<APZCTreeManagerParent*>(aActor); + + MonitorAutoLock lock(*sIndirectLayerTreesLock); + auto iter = sIndirectLayerTrees.find(parent->GetLayersId()); + if (iter != sIndirectLayerTrees.end()) { + CompositorBridgeParent::LayerTreeState& state = iter->second; + MOZ_ASSERT(state.mApzcTreeManagerParent == parent); + state.mApzcTreeManagerParent = nullptr; + } + + delete parent; + + return true; +} + +PAPZParent* ContentCompositorBridgeParent::AllocPAPZParent( + const LayersId& aLayersId) { + // Check to see if this child process has access to this layer tree. + if (!LayerTreeOwnerTracker::Get()->IsMapped(aLayersId, OtherPid())) { + NS_ERROR("Unexpected layers id in AllocPAPZParent; dropping message..."); + return nullptr; + } + + 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[aLayersId]; + MOZ_ASSERT(!state.mController); + state.mController = controller; + + return controller; +} + +bool ContentCompositorBridgeParent::DeallocPAPZParent(PAPZParent* aActor) { + RemoteContentController* controller = + static_cast<RemoteContentController*>(aActor); + controller->Release(); + return true; +} + +PWebRenderBridgeParent* +ContentCompositorBridgeParent::AllocPWebRenderBridgeParent( + const wr::PipelineId& aPipelineId, const LayoutDeviceIntSize& aSize, + const WindowKind& aWindowKind) { + LayersId layersId = wr::AsLayersId(aPipelineId); + // Check to see if this child process has access to this layer tree. + if (!LayerTreeOwnerTracker::Get()->IsMapped(layersId, OtherPid())) { + NS_ERROR( + "Unexpected layers id in AllocPWebRenderBridgeParent; dropping " + "message..."); + return nullptr; + } + + RefPtr<CompositorBridgeParent> cbp = nullptr; + RefPtr<WebRenderBridgeParent> root = nullptr; + + { // scope lock + MonitorAutoLock lock(*sIndirectLayerTreesLock); + MOZ_ASSERT(sIndirectLayerTrees.find(layersId) != sIndirectLayerTrees.end()); + MOZ_ASSERT(sIndirectLayerTrees[layersId].mWrBridge == nullptr); + cbp = sIndirectLayerTrees[layersId].mParent; + if (cbp) { + root = sIndirectLayerTrees[cbp->RootLayerTreeId()].mWrBridge; + } + } + + RefPtr<wr::WebRenderAPI> api; + if (root) { + api = root->GetWebRenderAPI(); + } + + if (!root || !api) { + // This could happen when this function is called after + // CompositorBridgeParent destruction. This was observed during Tab move + // between different windows. + NS_WARNING( + nsPrintfCString("Created child without a matching parent? root %p", + root.get()) + .get()); + nsCString error("NO_PARENT"); + WebRenderBridgeParent* parent = + WebRenderBridgeParent::CreateDestroyed(aPipelineId, std::move(error)); + parent->AddRef(); // IPDL reference + return parent; + } + + api = api->Clone(); + RefPtr<AsyncImagePipelineManager> holder = root->AsyncImageManager(); + WebRenderBridgeParent* parent = new WebRenderBridgeParent( + this, aPipelineId, nullptr, root->CompositorScheduler(), std::move(api), + std::move(holder), cbp->GetVsyncInterval()); + parent->AddRef(); // IPDL reference + + { // scope lock + MonitorAutoLock lock(*sIndirectLayerTreesLock); + sIndirectLayerTrees[layersId].mContentCompositorBridgeParent = this; + sIndirectLayerTrees[layersId].mWrBridge = parent; + } + + return parent; +} + +bool ContentCompositorBridgeParent::DeallocPWebRenderBridgeParent( + PWebRenderBridgeParent* aActor) { + WebRenderBridgeParent* parent = static_cast<WebRenderBridgeParent*>(aActor); + EraseLayerState(wr::AsLayersId(parent->PipelineId())); + parent->Release(); // IPDL reference + return true; +} + +mozilla::ipc::IPCResult ContentCompositorBridgeParent::RecvNotifyChildCreated( + const LayersId& child, CompositorOptions* aOptions) { + MonitorAutoLock lock(*sIndirectLayerTreesLock); + for (auto& entry : sIndirectLayerTrees) { + CompositorBridgeParent::LayerTreeState& lts = entry.second; + if (lts.mParent && lts.mContentCompositorBridgeParent == this) { + lts.mParent->NotifyChildCreated(child); + *aOptions = lts.mParent->GetOptions(); + return IPC_OK(); + } + } + return IPC_FAIL_NO_REASON(this); +} + +mozilla::ipc::IPCResult +ContentCompositorBridgeParent::RecvMapAndNotifyChildCreated( + const LayersId& child, const base::ProcessId& pid, + CompositorOptions* aOptions) { + // This can only be called from the browser process, as the mapping + // ensures proper window ownership of layer trees. + return IPC_FAIL_NO_REASON(this); +} + +mozilla::ipc::IPCResult +ContentCompositorBridgeParent::RecvNotifyMemoryPressure() { + // This can only be called from the browser process. + return IPC_FAIL_NO_REASON(this); +} + +mozilla::ipc::IPCResult ContentCompositorBridgeParent::RecvCheckContentOnlyTDR( + const uint32_t& sequenceNum, bool* isContentOnlyTDR) { + *isContentOnlyTDR = false; +#ifdef XP_WIN + gfx::ContentDeviceData compositor; + + gfx::DeviceManagerDx* dm = gfx::DeviceManagerDx::Get(); + + // Check that the D3D11 device sequence numbers match. + gfx::D3D11DeviceStatus status; + dm->ExportDeviceInfo(&status); + + if (sequenceNum == static_cast<uint32_t>(status.sequenceNumber()) && + !dm->HasDeviceReset()) { + *isContentOnlyTDR = true; + } + +#endif + return IPC_OK(); +}; + +void ContentCompositorBridgeParent::DidCompositeLocked( + LayersId aId, const VsyncId& aVsyncId, TimeStamp& aCompositeStart, + TimeStamp& aCompositeEnd) { + sIndirectLayerTreesLock->AssertCurrentThreadOwns(); + if (sIndirectLayerTrees[aId].mWrBridge) { + MOZ_ASSERT(false); // this should never get called for a WR compositor + } +} + +bool ContentCompositorBridgeParent::SetTestSampleTime(const LayersId& aId, + const TimeStamp& aTime) { + MOZ_ASSERT(aId.IsValid()); + const CompositorBridgeParent::LayerTreeState* state = + CompositorBridgeParent::GetIndirectShadowTree(aId); + if (!state) { + return false; + } + + MOZ_ASSERT(state->mParent); + return state->mParent->SetTestSampleTime(aId, aTime); +} + +void ContentCompositorBridgeParent::LeaveTestMode(const LayersId& aId) { + MOZ_ASSERT(aId.IsValid()); + const CompositorBridgeParent::LayerTreeState* state = + CompositorBridgeParent::GetIndirectShadowTree(aId); + if (!state) { + return; + } + + MOZ_ASSERT(state->mParent); + state->mParent->LeaveTestMode(aId); +} + +void ContentCompositorBridgeParent::SetTestAsyncScrollOffset( + const LayersId& aLayersId, const ScrollableLayerGuid::ViewID& aScrollId, + const CSSPoint& aPoint) { + MOZ_ASSERT(aLayersId.IsValid()); + const CompositorBridgeParent::LayerTreeState* state = + CompositorBridgeParent::GetIndirectShadowTree(aLayersId); + if (!state) { + return; + } + + MOZ_ASSERT(state->mParent); + state->mParent->SetTestAsyncScrollOffset(aLayersId, aScrollId, aPoint); +} + +void ContentCompositorBridgeParent::SetTestAsyncZoom( + const LayersId& aLayersId, const ScrollableLayerGuid::ViewID& aScrollId, + const LayerToParentLayerScale& aZoom) { + MOZ_ASSERT(aLayersId.IsValid()); + const CompositorBridgeParent::LayerTreeState* state = + CompositorBridgeParent::GetIndirectShadowTree(aLayersId); + if (!state) { + return; + } + + MOZ_ASSERT(state->mParent); + state->mParent->SetTestAsyncZoom(aLayersId, aScrollId, aZoom); +} + +void ContentCompositorBridgeParent::FlushApzRepaints( + const LayersId& aLayersId) { + MOZ_ASSERT(aLayersId.IsValid()); + const CompositorBridgeParent::LayerTreeState* state = + CompositorBridgeParent::GetIndirectShadowTree(aLayersId); + if (!state || !state->mParent) { + return; + } + + state->mParent->FlushApzRepaints(aLayersId); +} + +void ContentCompositorBridgeParent::GetAPZTestData(const LayersId& aLayersId, + APZTestData* aOutData) { + MOZ_ASSERT(aLayersId.IsValid()); + const CompositorBridgeParent::LayerTreeState* state = + CompositorBridgeParent::GetIndirectShadowTree(aLayersId); + if (!state || !state->mParent) { + return; + } + + state->mParent->GetAPZTestData(aLayersId, aOutData); +} + +void ContentCompositorBridgeParent::GetFrameUniformity( + const LayersId& aLayersId, FrameUniformityData* aOutData) { + MOZ_ASSERT(aLayersId.IsValid()); + const CompositorBridgeParent::LayerTreeState* state = + CompositorBridgeParent::GetIndirectShadowTree(aLayersId); + if (!state || !state->mParent) { + return; + } + + state->mParent->GetFrameUniformity(aLayersId, aOutData); +} + +void ContentCompositorBridgeParent::SetConfirmedTargetAPZC( + const LayersId& aLayersId, const uint64_t& aInputBlockId, + nsTArray<ScrollableLayerGuid>&& aTargets) { + MOZ_ASSERT(aLayersId.IsValid()); + const CompositorBridgeParent::LayerTreeState* state = + CompositorBridgeParent::GetIndirectShadowTree(aLayersId); + if (!state || !state->mParent) { + return; + } + + state->mParent->SetConfirmedTargetAPZC(aLayersId, aInputBlockId, + std::move(aTargets)); +} + +void ContentCompositorBridgeParent::DeferredDestroy() { mSelfRef = nullptr; } + +ContentCompositorBridgeParent::~ContentCompositorBridgeParent() { + MOZ_ASSERT(XRE_GetIOMessageLoop()); +} + +PTextureParent* ContentCompositorBridgeParent::AllocPTextureParent( + const SurfaceDescriptor& aSharedData, ReadLockDescriptor& aReadLock, + const LayersBackend& aLayersBackend, const TextureFlags& aFlags, + const LayersId& aId, const uint64_t& aSerial, + const wr::MaybeExternalImageId& aExternalImageId) { + CompositorBridgeParent::LayerTreeState* state = nullptr; + + LayerTreeMap::iterator itr = sIndirectLayerTrees.find(aId); + if (sIndirectLayerTrees.end() != itr) { + state = &itr->second; + } + + TextureFlags flags = aFlags; + + LayersBackend actualBackend = LayersBackend::LAYERS_NONE; + if (!state) { + // The compositor was recreated, and we're receiving layers updates for a + // a layer manager that will soon be discarded or invalidated. We can't + // return null because this will mess up deserialization later and we'll + // kill the content process. Instead, we signal that the underlying + // TextureHost should not attempt to access the compositor. + flags |= TextureFlags::INVALID_COMPOSITOR; + } else if (actualBackend != LayersBackend::LAYERS_NONE && + aLayersBackend != actualBackend) { + gfxDevCrash(gfx::LogReason::PAllocTextureBackendMismatch) + << "Texture backend is wrong"; + } + + return TextureHost::CreateIPDLActor(this, aSharedData, std::move(aReadLock), + aLayersBackend, aFlags, aSerial, + aExternalImageId); +} + +bool ContentCompositorBridgeParent::DeallocPTextureParent( + PTextureParent* actor) { + return TextureHost::DestroyIPDLActor(actor); +} + +mozilla::ipc::IPCResult ContentCompositorBridgeParent::RecvInitPCanvasParent( + Endpoint<PCanvasParent>&& aEndpoint) { + MOZ_RELEASE_ASSERT(!mCanvasTranslator, + "mCanvasTranslator must be released before recreating."); + + mCanvasTranslator = CanvasTranslator::Create(std::move(aEndpoint)); + return IPC_OK(); +} + +mozilla::ipc::IPCResult +ContentCompositorBridgeParent::RecvReleasePCanvasParent() { + MOZ_RELEASE_ASSERT(mCanvasTranslator, + "mCanvasTranslator hasn't been created."); + + mCanvasTranslator = nullptr; + return IPC_OK(); +} + +UniquePtr<SurfaceDescriptor> +ContentCompositorBridgeParent::LookupSurfaceDescriptorForClientTexture( + const int64_t aTextureId) { + MOZ_RELEASE_ASSERT(mCanvasTranslator, + "mCanvasTranslator hasn't been created."); + + return mCanvasTranslator->WaitForSurfaceDescriptor(aTextureId); +} + +bool ContentCompositorBridgeParent::IsSameProcess() const { + return OtherPid() == base::GetCurrentProcId(); +} + +void ContentCompositorBridgeParent::ObserveLayersUpdate( + LayersId aLayersId, LayersObserverEpoch aEpoch, bool aActive) { + MOZ_ASSERT(aLayersId.IsValid()); + + CompositorBridgeParent::LayerTreeState* state = + CompositorBridgeParent::GetIndirectShadowTree(aLayersId); + if (!state || !state->mParent) { + return; + } + + Unused << state->mParent->SendObserveLayersUpdate(aLayersId, aEpoch, aActive); +} + +} // namespace mozilla::layers |