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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /gfx/ipc/VsyncBridgeChild.cpp
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/ipc/VsyncBridgeChild.cpp')
-rw-r--r--gfx/ipc/VsyncBridgeChild.cpp127
1 files changed, 127 insertions, 0 deletions
diff --git a/gfx/ipc/VsyncBridgeChild.cpp b/gfx/ipc/VsyncBridgeChild.cpp
new file mode 100644
index 0000000000..044a24f320
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+++ b/gfx/ipc/VsyncBridgeChild.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 "VsyncBridgeChild.h"
+#include "VsyncIOThreadHolder.h"
+#include "mozilla/dom/ContentChild.h"
+#include "mozilla/gfx/GPUProcessManager.h"
+#include "mozilla/ipc/Endpoint.h"
+
+namespace mozilla {
+namespace gfx {
+
+VsyncBridgeChild::VsyncBridgeChild(RefPtr<VsyncIOThreadHolder> aThread,
+ const uint64_t& aProcessToken)
+ : mThread(aThread), mProcessToken(aProcessToken) {}
+
+VsyncBridgeChild::~VsyncBridgeChild() = default;
+
+/* static */
+RefPtr<VsyncBridgeChild> VsyncBridgeChild::Create(
+ RefPtr<VsyncIOThreadHolder> aThread, const uint64_t& aProcessToken,
+ Endpoint<PVsyncBridgeChild>&& aEndpoint) {
+ RefPtr<VsyncBridgeChild> child = new VsyncBridgeChild(aThread, aProcessToken);
+
+ RefPtr<nsIRunnable> task = NewRunnableMethod<Endpoint<PVsyncBridgeChild>&&>(
+ "gfx::VsyncBridgeChild::Open", child, &VsyncBridgeChild::Open,
+ std::move(aEndpoint));
+ aThread->GetThread()->Dispatch(task.forget(), nsIThread::DISPATCH_NORMAL);
+
+ return child;
+}
+
+void VsyncBridgeChild::Open(Endpoint<PVsyncBridgeChild>&& aEndpoint) {
+ if (!aEndpoint.Bind(this)) {
+ // The GPU Process Manager might be gone if we receive ActorDestroy very
+ // late in shutdown.
+ if (GPUProcessManager* gpm = GPUProcessManager::Get())
+ gpm->NotifyRemoteActorDestroyed(mProcessToken);
+ return;
+ }
+}
+
+class NotifyVsyncTask : public Runnable {
+ public:
+ NotifyVsyncTask(RefPtr<VsyncBridgeChild> aVsyncBridge,
+ const VsyncEvent& aVsync, const layers::LayersId& aLayersId)
+ : Runnable("gfx::NotifyVsyncTask"),
+ mVsyncBridge(aVsyncBridge),
+ mVsync(aVsync),
+ mLayersId(aLayersId) {}
+
+ NS_IMETHOD Run() override {
+ mVsyncBridge->NotifyVsyncImpl(mVsync, mLayersId);
+ return NS_OK;
+ }
+
+ private:
+ RefPtr<VsyncBridgeChild> mVsyncBridge;
+ VsyncEvent mVsync;
+ layers::LayersId mLayersId;
+};
+
+bool VsyncBridgeChild::IsOnVsyncIOThread() const {
+ return mThread->IsOnCurrentThread();
+}
+
+void VsyncBridgeChild::NotifyVsync(const VsyncEvent& aVsync,
+ const layers::LayersId& aLayersId) {
+ // This should be on the Vsync thread (not the Vsync I/O thread).
+ MOZ_ASSERT(!IsOnVsyncIOThread());
+
+ RefPtr<NotifyVsyncTask> task = new NotifyVsyncTask(this, aVsync, aLayersId);
+ mThread->Dispatch(task.forget());
+}
+
+void VsyncBridgeChild::NotifyVsyncImpl(const VsyncEvent& aVsync,
+ const layers::LayersId& aLayersId) {
+ // This should be on the Vsync I/O thread.
+ MOZ_ASSERT(IsOnVsyncIOThread());
+
+ if (!mProcessToken) {
+ return;
+ }
+ SendNotifyVsync(aVsync, aLayersId);
+}
+
+void VsyncBridgeChild::Close() {
+ if (!IsOnVsyncIOThread()) {
+ mThread->Dispatch(NewRunnableMethod("gfx::VsyncBridgeChild::Close", this,
+ &VsyncBridgeChild::Close));
+ return;
+ }
+
+ // We clear mProcessToken when the channel is closed.
+ if (!mProcessToken) {
+ return;
+ }
+
+ // Clear the process token so we don't notify the GPUProcessManager. It
+ // already knows we're closed since it manually called Close, and in fact the
+ // GPM could have already been destroyed during shutdown.
+ mProcessToken = 0;
+
+ // Close the underlying IPC channel.
+ PVsyncBridgeChild::Close();
+}
+
+void VsyncBridgeChild::ActorDestroy(ActorDestroyReason aWhy) {
+ if (mProcessToken) {
+ GPUProcessManager::Get()->NotifyRemoteActorDestroyed(mProcessToken);
+ mProcessToken = 0;
+ }
+}
+
+void VsyncBridgeChild::ProcessingError(Result aCode, const char* aReason) {
+ MOZ_RELEASE_ASSERT(aCode == MsgDropped,
+ "Processing error in VsyncBridgeChild");
+}
+
+void VsyncBridgeChild::HandleFatalError(const char* aMsg) {
+ dom::ContentChild::FatalErrorIfNotUsingGPUProcess(aMsg, OtherPid());
+}
+
+} // namespace gfx
+} // namespace mozilla