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74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set sw=2 ts=8 et tw=80 : */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_layers_CompositorChild_h
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#define mozilla_layers_CompositorChild_h
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#include "base/basictypes.h" // for DISALLOW_EVIL_CONSTRUCTORS
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#include "mozilla/Assertions.h" // for MOZ_ASSERT_HELPER2
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#include "mozilla/Attributes.h" // for MOZ_OVERRIDE
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#include "mozilla/ipc/ProtocolUtils.h"
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#include "mozilla/layers/PCompositorChild.h"
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#include "nsAutoPtr.h" // for nsRefPtr
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#include "nsCOMPtr.h" // for nsCOMPtr
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#include "nsISupportsImpl.h" // for NS_INLINE_DECL_REFCOUNTING
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class nsIObserver;
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namespace mozilla {
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namespace layers {
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class LayerManager;
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class CompositorParent;
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class CompositorChild : public PCompositorChild
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{
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NS_INLINE_DECL_REFCOUNTING(CompositorChild)
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public:
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CompositorChild(LayerManager *aLayerManager);
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virtual ~CompositorChild();
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void Destroy();
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/**
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* We're asked to create a new Compositor in response to an Opens()
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* or Bridge() request from our parent process. The Transport is to
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* the compositor's context.
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*/
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static bool
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Create(Transport* aTransport, ProcessId aOtherProcess);
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static PCompositorChild* Get();
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static bool ChildProcessHasCompositor() { return sCompositor != nullptr; }
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protected:
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virtual PLayerTransactionChild*
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AllocPLayerTransactionChild(const nsTArray<LayersBackend>& aBackendHints,
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const uint64_t& aId,
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TextureFactoryIdentifier* aTextureFactoryIdentifier,
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bool* aSuccess) MOZ_OVERRIDE;
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virtual bool DeallocPLayerTransactionChild(PLayerTransactionChild *aChild) MOZ_OVERRIDE;
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virtual void ActorDestroy(ActorDestroyReason aWhy) MOZ_OVERRIDE;
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private:
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nsRefPtr<LayerManager> mLayerManager;
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nsCOMPtr<nsIObserver> mMemoryPressureObserver;
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// When we're in a child process, this is the process-global
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// compositor that we use to forward transactions directly to the
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// compositor context in another process.
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static CompositorChild* sCompositor;
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DISALLOW_EVIL_CONSTRUCTORS(CompositorChild);
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};
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} // layers
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} // mozilla
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#endif // mozilla_layers_CompositorChild_h
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