1 files changed, 114 insertions, 0 deletions
diff --git a/gfx/layers/ipc/CompositorManagerParent.h b/gfx/layers/ipc/CompositorManagerParent.h
new file mode 100644
index 0000000000..17eeb61c8c
--- /dev/null
+++ b/gfx/layers/ipc/CompositorManagerParent.h
@@ -0,0 +1,114 @@
+/* -*- 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/. */
+
+#ifndef MOZILLA_GFX_COMPOSITORMANAGERPARENT_H
+#define MOZILLA_GFX_COMPOSITORMANAGERPARENT_H
+
+#include <map>
+#include <stdint.h>                 // for uint32_t
+#include "mozilla/Attributes.h"     // for override
+#include "mozilla/StaticPtr.h"      // for StaticRefPtr
+#include "mozilla/StaticMonitor.h"  // for StaticMonitor
+#include "mozilla/RefPtr.h"         // for already_AddRefed
+#include "mozilla/dom/ipc/IdType.h"
+#include "mozilla/layers/PCompositorManagerParent.h"
+#include "nsTArray.h"  // for AutoTArray
+
+namespace mozilla {
+
+namespace gfx {
+class SourceSurfaceSharedData;
+}
+
+namespace layers {
+
+class CompositorBridgeParent;
+class CompositorThreadHolder;
+class RemoteTextureTxnScheduler;
+class SharedSurfacesHolder;
+
+class CompositorManagerParent final : public PCompositorManagerParent {
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(CompositorManagerParent, final)
+
+ public:
+  static already_AddRefed<CompositorManagerParent> CreateSameProcess(
+      uint32_t aNamespace);
+  static bool Create(Endpoint<PCompositorManagerParent>&& aEndpoint,
+                     dom::ContentParentId aContentId, uint32_t aNamespace,
+                     bool aIsRoot);
+  static void Shutdown();
+
+  static already_AddRefed<CompositorBridgeParent>
+  CreateSameProcessWidgetCompositorBridge(CSSToLayoutDeviceScale aScale,
+                                          const CompositorOptions& aOptions,
+                                          bool aUseExternalSurfaceSize,
+                                          const gfx::IntSize& aSurfaceSize,
+                                          uint64_t aInnerWindowId);
+
+  static void WaitForSharedSurface(const wr::ExternalImageId& aId);
+
+  static void AddSharedSurface(const wr::ExternalImageId& aId,
+                               gfx::SourceSurfaceSharedData* aSurface);
+
+  mozilla::ipc::IPCResult RecvAddSharedSurface(const wr::ExternalImageId& aId,
+                                               SurfaceDescriptorShared&& aDesc);
+  mozilla::ipc::IPCResult RecvRemoveSharedSurface(
+      const wr::ExternalImageId& aId);
+  mozilla::ipc::IPCResult RecvReportSharedSurfacesMemory(
+      ReportSharedSurfacesMemoryResolver&&);
+
+  mozilla::ipc::IPCResult RecvNotifyMemoryPressure();
+
+  mozilla::ipc::IPCResult RecvReportMemory(ReportMemoryResolver&&);
+
+  mozilla::ipc::IPCResult RecvInitCanvasManager(
+      Endpoint<PCanvasManagerParent>&&);
+
+  void BindComplete(bool aIsRoot);
+  void ActorDestroy(ActorDestroyReason aReason) override;
+
+  already_AddRefed<PCompositorBridgeParent> AllocPCompositorBridgeParent(
+      const CompositorBridgeOptions& aOpt);
+
+  static void NotifyWebRenderError(wr::WebRenderError aError);
+
+  const dom::ContentParentId& GetContentId() const { return mContentId; }
+
+  bool OwnsExternalImageId(const wr::ExternalImageId& aId) const {
+    return mNamespace == static_cast<uint32_t>(wr::AsUint64(aId) >> 32);
+  }
+
+ private:
+  static StaticMonitor sMonitor;
+  static StaticRefPtr<CompositorManagerParent> sInstance
+      MOZ_GUARDED_BY(sMonitor);
+
+  // Indexed by namespace.
+  using ManagerMap = std::map<uint32_t, CompositorManagerParent*>;
+  static ManagerMap sManagers MOZ_GUARDED_BY(sMonitor);
+
+  static void ShutdownInternal();
+
+  CompositorManagerParent(dom::ContentParentId aContentId, uint32_t aNamespace);
+  virtual ~CompositorManagerParent();
+
+  void Bind(Endpoint<PCompositorManagerParent>&& aEndpoint, bool aIsRoot);
+
+  void DeferredDestroy();
+
+  RefPtr<CompositorThreadHolder> mCompositorThreadHolder;
+  RefPtr<SharedSurfacesHolder> mSharedSurfacesHolder;
+  AutoTArray<RefPtr<CompositorBridgeParent>, 1> mPendingCompositorBridges;
+  const dom::ContentParentId mContentId;
+  const uint32_t mNamespace;
+  uint32_t mLastSharedSurfaceResourceId MOZ_GUARDED_BY(sMonitor) = 0;
+  RefPtr<RemoteTextureTxnScheduler> mRemoteTextureTxnScheduler;
+};
+
+}  // namespace layers
+}  // namespace mozilla
+
+#endif