зеркало из https://github.com/mozilla/gecko-dev.git
132 строки
4.1 KiB
C++
132 строки
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "VsyncBridgeChild.h"
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#include "VsyncIOThreadHolder.h"
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#include "mozilla/dom/ContentChild.h"
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#include "mozilla/gfx/GPUProcessManager.h"
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namespace mozilla {
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namespace gfx {
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VsyncBridgeChild::VsyncBridgeChild(RefPtr<VsyncIOThreadHolder> aThread,
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const uint64_t& aProcessToken)
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: mThread(aThread), mProcessToken(aProcessToken) {}
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VsyncBridgeChild::~VsyncBridgeChild() = default;
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/* static */
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RefPtr<VsyncBridgeChild> VsyncBridgeChild::Create(
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RefPtr<VsyncIOThreadHolder> aThread, const uint64_t& aProcessToken,
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Endpoint<PVsyncBridgeChild>&& aEndpoint) {
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RefPtr<VsyncBridgeChild> child = new VsyncBridgeChild(aThread, aProcessToken);
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RefPtr<nsIRunnable> task = NewRunnableMethod<Endpoint<PVsyncBridgeChild>&&>(
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"gfx::VsyncBridgeChild::Open", child, &VsyncBridgeChild::Open,
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std::move(aEndpoint));
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aThread->GetThread()->Dispatch(task.forget(), nsIThread::DISPATCH_NORMAL);
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return child;
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}
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void VsyncBridgeChild::Open(Endpoint<PVsyncBridgeChild>&& aEndpoint) {
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if (!aEndpoint.Bind(this)) {
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// The GPU Process Manager might be gone if we receive ActorDestroy very
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// late in shutdown.
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if (GPUProcessManager* gpm = GPUProcessManager::Get())
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gpm->NotifyRemoteActorDestroyed(mProcessToken);
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return;
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}
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// Last reference is freed in DeallocPVsyncBridgeChild.
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AddRef();
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}
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class NotifyVsyncTask : public Runnable {
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public:
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NotifyVsyncTask(RefPtr<VsyncBridgeChild> aVsyncBridge,
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const VsyncEvent& aVsync, const layers::LayersId& aLayersId)
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: Runnable("gfx::NotifyVsyncTask"),
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mVsyncBridge(aVsyncBridge),
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mVsync(aVsync),
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mLayersId(aLayersId) {}
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NS_IMETHOD Run() override {
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mVsyncBridge->NotifyVsyncImpl(mVsync, mLayersId);
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return NS_OK;
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}
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private:
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RefPtr<VsyncBridgeChild> mVsyncBridge;
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VsyncEvent mVsync;
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layers::LayersId mLayersId;
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};
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bool VsyncBridgeChild::IsOnVsyncIOThread() const {
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return mThread->IsOnCurrentThread();
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}
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void VsyncBridgeChild::NotifyVsync(const VsyncEvent& aVsync,
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const layers::LayersId& aLayersId) {
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// This should be on the Vsync thread (not the Vsync I/O thread).
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MOZ_ASSERT(!IsOnVsyncIOThread());
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RefPtr<NotifyVsyncTask> task = new NotifyVsyncTask(this, aVsync, aLayersId);
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mThread->Dispatch(task.forget());
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}
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void VsyncBridgeChild::NotifyVsyncImpl(const VsyncEvent& aVsync,
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const layers::LayersId& aLayersId) {
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// This should be on the Vsync I/O thread.
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MOZ_ASSERT(IsOnVsyncIOThread());
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if (!mProcessToken) {
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return;
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}
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SendNotifyVsync(aVsync, aLayersId);
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}
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void VsyncBridgeChild::Close() {
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if (!IsOnVsyncIOThread()) {
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mThread->Dispatch(NewRunnableMethod("gfx::VsyncBridgeChild::Close", this,
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&VsyncBridgeChild::Close));
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return;
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}
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// We clear mProcessToken when the channel is closed.
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if (!mProcessToken) {
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return;
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}
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// Clear the process token so we don't notify the GPUProcessManager. It
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// already knows we're closed since it manually called Close, and in fact the
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// GPM could have already been destroyed during shutdown.
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mProcessToken = 0;
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// Close the underlying IPC channel.
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PVsyncBridgeChild::Close();
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}
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void VsyncBridgeChild::ActorDestroy(ActorDestroyReason aWhy) {
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if (mProcessToken) {
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GPUProcessManager::Get()->NotifyRemoteActorDestroyed(mProcessToken);
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mProcessToken = 0;
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}
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}
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void VsyncBridgeChild::ActorDealloc() { Release(); }
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void VsyncBridgeChild::ProcessingError(Result aCode, const char* aReason) {
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MOZ_RELEASE_ASSERT(aCode == MsgDropped,
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"Processing error in VsyncBridgeChild");
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}
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void VsyncBridgeChild::HandleFatalError(const char* aMsg) const {
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dom::ContentChild::FatalErrorIfNotUsingGPUProcess(aMsg, OtherPid());
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}
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} // namespace gfx
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} // namespace mozilla
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