92 lines
2.3 KiB
C++
92 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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_gfx_layers_client_CompositableChild_h
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#define mozilla_gfx_layers_client_CompositableChild_h
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#include <stdint.h>
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#include "IPDLActor.h"
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#include "mozilla/Mutex.h"
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#include "mozilla/layers/PCompositableChild.h"
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namespace mozilla {
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namespace layers {
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class CompositableClient;
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class AsyncCompositableChild;
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/**
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* IPDL actor used by CompositableClient to match with its corresponding
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* CompositableHost on the compositor side.
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*
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* CompositableChild is owned by a CompositableClient.
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*/
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class CompositableChild : public PCompositableChild
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{
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(CompositableChild)
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static PCompositableChild* CreateActor();
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static void DestroyActor(PCompositableChild* aChild);
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void Init(CompositableClient* aCompositable, uint64_t aAsyncID);
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virtual void RevokeCompositableClient();
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virtual void ActorDestroy(ActorDestroyReason) override;
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virtual RefPtr<CompositableClient> GetCompositableClient();
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virtual AsyncCompositableChild* AsAsyncCompositableChild() {
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return nullptr;
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}
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uint64_t GetAsyncID() const {
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return mAsyncID;
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}
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// These should only be called on the IPDL thread.
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bool IsConnected() const;
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bool CanSend() const {
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return mCanSend;
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}
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protected:
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CompositableChild();
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virtual ~CompositableChild();
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protected:
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CompositableClient* mCompositableClient;
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uint64_t mAsyncID;
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bool mCanSend;
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};
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// This CompositableChild can be used off the main thread.
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class AsyncCompositableChild final : public CompositableChild
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{
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public:
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static PCompositableChild* CreateActor();
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void RevokeCompositableClient() override;
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RefPtr<CompositableClient> GetCompositableClient() override;
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void ActorDestroy(ActorDestroyReason) override;
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AsyncCompositableChild* AsAsyncCompositableChild() override {
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return this;
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}
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protected:
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AsyncCompositableChild();
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~AsyncCompositableChild() override;
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private:
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Mutex mLock;
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};
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} // namespace layers
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} // namespace mozilla
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#endif // mozilla_gfx_layers_client_CompositableChild_h
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