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83 lines
1.8 KiB
C++
83 lines
1.8 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_FenceUtilsGonk_h
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#define mozilla_layers_FenceUtilsGonk_h
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#include <unistd.h>
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#include <ui/Fence.h>
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#include "ipc/IPCMessageUtils.h"
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#include "mozilla/layers/AsyncTransactionTracker.h" // for AsyncTransactionTracker
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namespace mozilla {
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namespace layers {
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struct FenceHandle {
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typedef android::Fence Fence;
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FenceHandle()
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{ }
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FenceHandle(const android::sp<Fence>& aFence);
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bool operator==(const FenceHandle& aOther) const {
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return mFence.get() == aOther.mFence.get();
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}
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bool IsValid() const
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{
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return mFence.get() && mFence->isValid();
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}
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android::sp<Fence> mFence;
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};
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// FenceDeliveryTracker puts off releasing a Fence until a transaction complete.
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class FenceDeliveryTracker : public AsyncTransactionTracker {
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public:
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FenceDeliveryTracker(const android::sp<android::Fence>& aFence)
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: mFence(aFence)
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{
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MOZ_COUNT_CTOR(FenceDeliveryTracker);
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}
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~FenceDeliveryTracker()
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{
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MOZ_COUNT_DTOR(FenceDeliveryTracker);
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}
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virtual void Complete() MOZ_OVERRIDE
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{
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mFence = nullptr;
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}
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virtual void Cancel() MOZ_OVERRIDE
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{
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mFence = nullptr;
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}
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private:
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android::sp<android::Fence> mFence;
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};
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} // namespace layers
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} // namespace mozilla
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namespace IPC {
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template <>
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struct ParamTraits<mozilla::layers::FenceHandle> {
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typedef mozilla::layers::FenceHandle paramType;
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static void Write(Message* aMsg, const paramType& aParam);
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static bool Read(const Message* aMsg, void** aIter, paramType* aResult);
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};
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} // namespace IPC
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#endif // mozilla_layers_FenceUtilsGonk_h
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