gfx/ipc/VsyncBridgeChild.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6 #ifndef include_gfx_ipc_VsyncBridgeChild_h
   7 #define include_gfx_ipc_VsyncBridgeChild_h
   8
   9 #include "mozilla/RefPtr.h"
  10 #include "mozilla/gfx/PVsyncBridgeChild.h"
  11
  12 namespace mozilla {
  13 namespace gfx {
  14
  15 class VsyncIOThreadHolder;
  16
  17 class VsyncBridgeChild final : public PVsyncBridgeChild {
  18   friend class NotifyVsyncTask;
  19
  20  public:
  21   NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VsyncBridgeChild)
  22
  23   static RefPtr<VsyncBridgeChild> Create(
  24       RefPtr<VsyncIOThreadHolder> aThread, const uint64_t& aProcessToken,
  25       Endpoint<PVsyncBridgeChild>&& aEndpoint);
  26
  27   void Close();
  28
  29   void ActorDestroy(ActorDestroyReason aWhy) override;
  30   void ActorDealloc() override;
  31   void ProcessingError(Result aCode, const char* aReason) override;
  32
  33   void NotifyVsync(const VsyncEvent& aVsync, const layers::LayersId& aLayersId);
  34
  35   void HandleFatalError(const char* aMsg) const override;
  36
  37  private:
  38   VsyncBridgeChild(RefPtr<VsyncIOThreadHolder>, const uint64_t& aProcessToken);
  39   virtual ~VsyncBridgeChild();
  40
  41   void Open(Endpoint<PVsyncBridgeChild>&& aEndpoint);
  42
  43   void NotifyVsyncImpl(const VsyncEvent& aVsync,
  44                        const layers::LayersId& aLayersId);
  45
  46   bool IsOnVsyncIOThread() const;
  47
  48  private:
  49   RefPtr<VsyncIOThreadHolder> mThread;
  50   uint64_t mProcessToken;
  51 };
  52
  53 }  // namespace gfx
  54 }  // namespace mozilla
  55
  56 #endif  // include_gfx_ipc_VsyncBridgeChild_h