Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
       2             :  * This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : 
       6             : #ifndef MOZILLA_GFX_COMPOSITORMANAGERCHILD_H
       7             : #define MOZILLA_GFX_COMPOSITORMANAGERCHILD_H
       8             : 
       9             : #include <stddef.h>                     // for size_t
      10             : #include <stdint.h>                     // for uint32_t, uint64_t
      11             : #include "mozilla/Attributes.h"         // for override
      12             : #include "mozilla/RefPtr.h"             // for already_AddRefed
      13             : #include "mozilla/StaticPtr.h"          // for StaticRefPtr
      14             : #include "mozilla/layers/PCompositorManagerChild.h"
      15             : 
      16             : namespace mozilla {
      17             : namespace layers {
      18             : 
      19             : class CompositorManagerParent;
      20             : class LayerManager;
      21             : 
      22             : class CompositorManagerChild : public PCompositorManagerChild
      23             : {
      24           9 :   NS_INLINE_DECL_THREADSAFE_REFCOUNTING(CompositorManagerChild)
      25             : 
      26             : public:
      27             :   static bool IsInitialized(base::ProcessId aPid);
      28             :   static bool InitSameProcess(uint32_t aNamespace);
      29             :   static bool Init(Endpoint<PCompositorManagerChild>&& aEndpoint,
      30             :                    uint32_t aNamespace);
      31             :   static void Shutdown();
      32             : 
      33             :   static bool
      34             :   CreateContentCompositorBridge(uint32_t aNamespace);
      35             : 
      36             :   static already_AddRefed<CompositorBridgeChild>
      37             :   CreateWidgetCompositorBridge(uint64_t aProcessToken,
      38             :                                LayerManager* aLayerManager,
      39             :                                uint32_t aNamespace,
      40             :                                CSSToLayoutDeviceScale aScale,
      41             :                                const CompositorOptions& aOptions,
      42             :                                bool aUseExternalSurfaceSize,
      43             :                                const gfx::IntSize& aSurfaceSize);
      44             : 
      45             :   static already_AddRefed<CompositorBridgeChild>
      46             :   CreateSameProcessWidgetCompositorBridge(LayerManager* aLayerManager,
      47             :                                           uint32_t aNamespace);
      48             : 
      49             :   uint32_t GetNextResourceId()
      50             :   {
      51             :     return ++mResourceId;
      52             :   }
      53             : 
      54             :   uint32_t GetNamespace() const
      55             :   {
      56             :     return mNamespace;
      57             :   }
      58             : 
      59             :   void ActorDestroy(ActorDestroyReason aReason) override;
      60             : 
      61             :   void HandleFatalError(const char* aName, const char* aMsg) const override;
      62             : 
      63             :   void ProcessingError(Result aCode, const char* aReason) override;
      64             : 
      65             :   PCompositorBridgeChild* AllocPCompositorBridgeChild(const CompositorBridgeOptions& aOptions) override;
      66             : 
      67             :   bool DeallocPCompositorBridgeChild(PCompositorBridgeChild* aActor) override;
      68             : 
      69             :   bool ShouldContinueFromReplyTimeout() override;
      70             : 
      71             : private:
      72             :   static StaticRefPtr<CompositorManagerChild> sInstance;
      73             : 
      74             :   CompositorManagerChild(CompositorManagerParent* aParent,
      75             :                          uint32_t aNamespace);
      76             : 
      77             :   CompositorManagerChild(Endpoint<PCompositorManagerChild>&& aEndpoint,
      78             :                          uint32_t aNamespace);
      79             : 
      80           0 :   ~CompositorManagerChild() override
      81           0 :   {
      82           0 :   }
      83             : 
      84           2 :   bool CanSend() const
      85             :   {
      86           2 :     MOZ_ASSERT(NS_IsMainThread());
      87           2 :     return mCanSend;
      88             :   }
      89             : 
      90             :   void DeallocPCompositorManagerChild() override;
      91             : 
      92             :   already_AddRefed<nsIEventTarget>
      93             :   GetSpecificMessageEventTarget(const Message& aMsg) override;
      94             : 
      95             :   void SetReplyTimeout();
      96             : 
      97             :   bool mCanSend;
      98             :   uint32_t mNamespace;
      99             :   uint32_t mResourceId;
     100             : };
     101             : 
     102             : } // namespace layers
     103             : } // namespace mozilla
     104             : 
     105             : #endif