forked from mirrors/gecko-dev
7d06300567
gecko uses IDXGIResource::GetSharedHandle(). But it is recommend not to use anymore to retrieve the handle to a shared resource. IDXGIResource1::CreateSharedHandle() with D3D11_RESOURCE_MISC_SHARED_NTHANDLE flag should be used instead of the GetSharedHandle(). The CreateSharedHandle() could be called only once for a shared resource. Later calls fail. HANDLEs of ID3D11Texture2D are replaced by gfx::FileHandleWrappers. Differential Revision: https://phabricator.services.mozilla.com/D192173
76 lines
2 KiB
C++
76 lines
2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 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_GFX_LAYERS_SYNCOBJECT_H
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#define MOZILLA_GFX_LAYERS_SYNCOBJECT_H
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#include "mozilla/gfx/FileHandleWrapper.h"
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#include "mozilla/RefCounted.h"
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struct ID3D11Device;
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namespace mozilla {
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namespace layers {
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#ifdef XP_WIN
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typedef RefPtr<gfx::FileHandleWrapper> SyncHandle;
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#else
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typedef uintptr_t SyncHandle;
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#endif // XP_WIN
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class SyncObjectHost : public RefCounted<SyncObjectHost> {
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public:
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MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(SyncObjectHost)
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virtual ~SyncObjectHost() = default;
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#ifdef XP_WIN
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static already_AddRefed<SyncObjectHost> CreateSyncObjectHost(
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ID3D11Device* aDevice);
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#endif
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virtual bool Init() = 0;
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virtual SyncHandle GetSyncHandle() = 0;
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// Return false for failed synchronization.
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virtual bool Synchronize(bool aFallible = false) = 0;
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protected:
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SyncObjectHost() = default;
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};
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class SyncObjectClient : public external::AtomicRefCounted<SyncObjectClient> {
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public:
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MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(SyncObjectClient)
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virtual ~SyncObjectClient() = default;
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#ifdef XP_WIN
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static already_AddRefed<SyncObjectClient> CreateSyncObjectClient(
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SyncHandle aHandle, ID3D11Device* aDevice);
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#endif
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static already_AddRefed<SyncObjectClient>
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CreateSyncObjectClientForContentDevice(SyncHandle aHandle);
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enum class SyncType {
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D3D11,
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};
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virtual SyncType GetSyncType() = 0;
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// Return false for failed synchronization.
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virtual bool Synchronize(bool aFallible = false) = 0;
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virtual bool IsSyncObjectValid() = 0;
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virtual void EnsureInitialized() = 0;
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protected:
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SyncObjectClient() = default;
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};
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} // namespace layers
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} // namespace mozilla
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#endif // MOZILLA_GFX_LAYERS_SYNCOBJECT_H
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