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