Add m-esr52 at 52.6.0

1 files changed, 112 insertions, 0 deletions

diff --git a/gfx/ipc/RemoteCompositorSession.cpp b/gfx/ipc/RemoteCompositorSession.cpp
new file mode 100644
index 000000000..6e5ad975a
--- /dev/null
+++ b/gfx/ipc/RemoteCompositorSession.cpp
@@ -0,0 +1,112 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=99: */
+/* 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 "RemoteCompositorSession.h"
+#include "mozilla/VsyncDispatcher.h"
+#include "mozilla/layers/APZChild.h"
+#include "mozilla/layers/APZCTreeManagerChild.h"
+#include "mozilla/Unused.h"
+#include "nsBaseWidget.h"
+
+namespace mozilla {
+namespace layers {
+
+using namespace gfx;
+using namespace widget;
+
+RemoteCompositorSession::RemoteCompositorSession(nsBaseWidget* aWidget,
+                                                 CompositorBridgeChild* aChild,
+                                                 CompositorWidgetDelegate* aWidgetDelegate,
+                                                 APZCTreeManagerChild* aAPZ,
+                                                 const uint64_t& aRootLayerTreeId)
+ : CompositorSession(aWidgetDelegate, aChild, aRootLayerTreeId),
+   mWidget(aWidget),
+   mAPZ(aAPZ)
+{
+  GPUProcessManager::Get()->RegisterSession(this);
+  if (mAPZ) {
+    mAPZ->SetCompositorSession(this);
+  }
+}
+
+RemoteCompositorSession::~RemoteCompositorSession()
+{
+  // This should have been shutdown first.
+  MOZ_ASSERT(!mCompositorBridgeChild);
+}
+
+void
+RemoteCompositorSession::NotifyDeviceReset()
+{
+  MOZ_ASSERT(mWidget);
+  mWidget->OnRenderingDeviceReset();
+}
+
+void
+RemoteCompositorSession::NotifySessionLost()
+{
+  // Re-entrancy should be impossible: when we are being notified of a lost
+  // session, we have by definition not shut down yet. We will shutdown, but
+  // then will be removed from the notification list.
+  MOZ_ASSERT(mWidget);
+  mWidget->NotifyRemoteCompositorSessionLost(this);
+}
+
+CompositorBridgeParent*
+RemoteCompositorSession::GetInProcessBridge() const
+{
+  return nullptr;
+}
+
+void
+RemoteCompositorSession::SetContentController(GeckoContentController* aController)
+{
+  mContentController = aController;
+  mCompositorBridgeChild->SendPAPZConstructor(new APZChild(aController), 0);
+}
+
+GeckoContentController*
+RemoteCompositorSession::GetContentController()
+{
+  return mContentController.get();
+}
+
+nsIWidget*
+RemoteCompositorSession::GetWidget()
+{
+  return mWidget;
+}
+
+RefPtr<IAPZCTreeManager>
+RemoteCompositorSession::GetAPZCTreeManager() const
+{
+  return mAPZ;
+}
+
+bool
+RemoteCompositorSession::Reset(const nsTArray<LayersBackend>& aBackendHints, TextureFactoryIdentifier* aOutIdentifier)
+{
+  bool didReset;
+  Unused << mCompositorBridgeChild->SendReset(aBackendHints, &didReset, aOutIdentifier);
+  return didReset;
+}
+
+void
+RemoteCompositorSession::Shutdown()
+{
+  mContentController = nullptr;
+  if (mAPZ) {
+    mAPZ->SetCompositorSession(nullptr);
+  }
+  mCompositorBridgeChild->Destroy();
+  mCompositorBridgeChild = nullptr;
+  mCompositorWidgetDelegate = nullptr;
+  mWidget = nullptr;
+  GPUProcessManager::Get()->UnregisterSession(this);
+}
+
+} // namespace layers
+} // namespace mozilla