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46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 GPU_CommandBuffer_H_
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#define GPU_CommandBuffer_H_
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#include "mozilla/WeakPtr.h"
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#include "mozilla/webgpu/WebGPUTypes.h"
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#include "nsWrapperCache.h"
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#include "ObjectModel.h"
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namespace mozilla::webgpu {
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class CanvasContext;
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class Device;
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class CommandBuffer final : public ObjectBase, public ChildOf<Device> {
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public:
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GPU_DECL_CYCLE_COLLECTION(CommandBuffer)
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GPU_DECL_JS_WRAP(CommandBuffer)
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CommandBuffer(Device* const aParent, RawId aId,
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nsTArray<WeakPtr<CanvasContext>>&& aPresentationContexts,
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RefPtr<CommandEncoder>&& aEncoder);
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Maybe<RawId> Commit();
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private:
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CommandBuffer() = delete;
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~CommandBuffer();
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void Cleanup();
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const RawId mId;
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const nsTArray<WeakPtr<CanvasContext>> mPresentationContexts;
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// Command buffers and encoders share the same identity (this is a
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// simplifcation currently made by wgpu). To avoid dropping the same ID twice,
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// the wgpu resource lifetime is tied to the encoder which is held alive by
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// the command buffer.
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RefPtr<CommandEncoder> mEncoder;
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};
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} // namespace mozilla::webgpu
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#endif // GPU_CommandBuffer_H_
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