зеркало из https://github.com/mozilla/gecko-dev.git
87 строки
2.5 KiB
C++
87 строки
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=8 et :
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*/
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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_COMPOSITABLETRANSACTIONPARENT_H
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#define MOZILLA_LAYERS_COMPOSITABLETRANSACTIONPARENT_H
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#include <vector> // for vector
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#include "mozilla/Attributes.h" // for override
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#include "mozilla/layers/ISurfaceAllocator.h" // for ISurfaceAllocator
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#include "mozilla/layers/LayersMessages.h" // for EditReply, etc
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#include "mozilla/layers/TextureClient.h"
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#include "CompositableHost.h"
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namespace mozilla {
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namespace layers {
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// Since PCompositble has two potential manager protocols, we can't just call
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// the Manager() method usually generated when there's one manager protocol,
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// so both manager protocols implement this and we keep a reference to them
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// through this interface.
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class CompositableParentManager : public HostIPCAllocator
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{
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public:
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typedef InfallibleTArray<ReadLockInit> ReadLockArray;
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CompositableParentManager() {}
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void DestroyActor(const OpDestroy& aOp);
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void UpdateFwdTransactionId(uint64_t aTransactionId)
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{
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MOZ_ASSERT(mFwdTransactionId < aTransactionId);
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mFwdTransactionId = aTransactionId;
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}
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uint64_t GetFwdTransactionId() { return mFwdTransactionId; }
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RefPtr<CompositableHost> AddCompositable(
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const CompositableHandle& aHandle,
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const TextureInfo& aInfo,
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bool aUseWebRender);
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RefPtr<CompositableHost> FindCompositable(const CompositableHandle& aHandle);
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bool AddReadLocks(ReadLockArray&& aReadLocks);
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TextureReadLock* FindReadLock(const ReadLockHandle& aLockHandle);
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protected:
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/**
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* Handle the IPDL messages that affect PCompositable actors.
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*/
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bool ReceiveCompositableUpdate(const CompositableOperation& aEdit);
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void ReleaseCompositable(const CompositableHandle& aHandle);
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uint64_t mFwdTransactionId = 0;
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/**
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* Mapping form IDs to CompositableHosts.
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*/
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std::map<uint64_t, RefPtr<CompositableHost>> mCompositables;
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std::map<uint64_t, RefPtr<TextureReadLock>> mReadLocks;
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};
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struct AutoClearReadLocks {
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explicit AutoClearReadLocks(std::map<uint64_t, RefPtr<TextureReadLock>>& aReadLocks)
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: mReadLocks(aReadLocks)
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{}
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~AutoClearReadLocks()
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{
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mReadLocks.clear();
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}
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std::map<uint64_t, RefPtr<TextureReadLock>>& mReadLocks;
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};
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} // namespace layers
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} // namespace mozilla
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#endif
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