зеркало из https://github.com/mozilla/gecko-dev.git
76 строки
2.4 KiB
C++
76 строки
2.4 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_SHAREDSURFACESPARENT_H
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#define MOZILLA_GFX_SHAREDSURFACESPARENT_H
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#include <stdint.h> // for uint32_t
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#include "mozilla/Attributes.h" // for override
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#include "mozilla/StaticPtr.h" // for StaticAutoPtr
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#include "mozilla/RefPtr.h" // for already_AddRefed
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#include "mozilla/ipc/SharedMemory.h" // for SharedMemory, etc
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#include "mozilla/gfx/2D.h" // for SurfaceFormat
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#include "mozilla/gfx/Point.h" // for IntSize
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#include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptorShared
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#include "mozilla/webrender/WebRenderTypes.h" // for wr::ExternalImageId
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#include "nsRefPtrHashtable.h"
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namespace mozilla {
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namespace gfx {
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class DataSourceSurface;
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class SourceSurfaceSharedData;
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class SourceSurfaceSharedDataWrapper;
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} // namespace gfx
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namespace layers {
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class SharedSurfacesChild;
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class SharedSurfacesParent final
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{
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public:
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static void Initialize();
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static void Shutdown();
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// Get without increasing the consumer count.
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static already_AddRefed<gfx::DataSourceSurface>
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Get(const wr::ExternalImageId& aId);
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// Get but also increase the consumer count. Must call Release after finished.
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static already_AddRefed<gfx::DataSourceSurface>
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Acquire(const wr::ExternalImageId& aId);
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static bool Release(const wr::ExternalImageId& aId);
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static void Add(const wr::ExternalImageId& aId,
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const SurfaceDescriptorShared& aDesc,
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base::ProcessId aPid);
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static void Remove(const wr::ExternalImageId& aId);
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static void DestroyProcess(base::ProcessId aPid);
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~SharedSurfacesParent();
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private:
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friend class SharedSurfacesChild;
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SharedSurfacesParent();
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static void AddSameProcess(const wr::ExternalImageId& aId,
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gfx::SourceSurfaceSharedData* aSurface);
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static void RemoveSameProcess(const wr::ExternalImageId& aId);
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static StaticAutoPtr<SharedSurfacesParent> sInstance;
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nsRefPtrHashtable<nsUint64HashKey, gfx::SourceSurfaceSharedDataWrapper> mSurfaces;
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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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