import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

gfx/ipc/InProcessCompositorSession.cpp

@@ -0,0 +1,83 @@
+/* -*- 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 "InProcessCompositorSession.h"
+
+// so we can cast an APZCTreeManager to an IAPZCTreeManager
+#include "mozilla/layers/APZCTreeManager.h"
+#include "mozilla/layers/IAPZCTreeManager.h"
+
+namespace mozilla {
+namespace layers {
+
+InProcessCompositorSession::InProcessCompositorSession(widget::CompositorWidget* aWidget,
+                                                       CompositorBridgeChild* aChild,
+                                                       CompositorBridgeParent* aParent)
+ : CompositorSession(aWidget->AsDelegate(), aChild, aParent->RootLayerTreeId()),
+   mCompositorBridgeParent(aParent),
+   mCompositorWidget(aWidget)
+{
+}
+
+/* static */ RefPtr<InProcessCompositorSession>
+InProcessCompositorSession::Create(nsIWidget* aWidget,
+                                   LayerManager* aLayerManager,
+                                   const uint64_t& aRootLayerTreeId,
+                                   CSSToLayoutDeviceScale aScale,
+                                   bool aUseAPZ,
+                                   bool aUseExternalSurfaceSize,
+                                   const gfx::IntSize& aSurfaceSize)
+{
+  CompositorWidgetInitData initData;
+  aWidget->GetCompositorWidgetInitData(&initData);
+
+  RefPtr<CompositorWidget> widget = CompositorWidget::CreateLocal(initData, aWidget);
+  RefPtr<CompositorBridgeChild> child = new CompositorBridgeChild(aLayerManager);
+  RefPtr<CompositorBridgeParent> parent =
+    child->InitSameProcess(widget, aRootLayerTreeId, aScale, aUseAPZ, aUseExternalSurfaceSize, aSurfaceSize);
+
+  return new InProcessCompositorSession(widget, child, parent);
+}
+
+CompositorBridgeParent*
+InProcessCompositorSession::GetInProcessBridge() const
+{
+  return mCompositorBridgeParent;
+}
+
+void
+InProcessCompositorSession::SetContentController(GeckoContentController* aController)
+{
+  mCompositorBridgeParent->SetControllerForLayerTree(mRootLayerTreeId, aController);
+}
+
+RefPtr<IAPZCTreeManager>
+InProcessCompositorSession::GetAPZCTreeManager() const
+{
+  return mCompositorBridgeParent->GetAPZCTreeManager(mRootLayerTreeId);
+}
+
+bool
+InProcessCompositorSession::Reset(const nsTArray<LayersBackend>& aBackendHints, TextureFactoryIdentifier* aOutIdentifier)
+{
+  return mCompositorBridgeParent->ResetCompositor(aBackendHints, aOutIdentifier);
+}
+
+void
+InProcessCompositorSession::Shutdown()
+{
+  // Destroy will synchronously wait for the parent to acknowledge shutdown,
+  // at which point CBP will defer a Release on the compositor thread. We
+  // can safely release our reference now, and let the destructor run on either
+  // thread.
+  mCompositorBridgeChild->Destroy();
+  mCompositorBridgeChild = nullptr;
+  mCompositorBridgeParent = nullptr;
+  mCompositorWidget = nullptr;
+}
+
+} // namespace layers
+} // namespace mozilla