forked from mirrors/gecko-dev
3021defc28
This change adds support for CanvasContext presenting WebGPU via CPU readback. The presentation is handled mostly on GPU process side by managing a list of staging buffers and copying the contents into a WR external image (backed by an external buffer). Differential Revision: https://phabricator.services.mozilla.com/D68032 --HG-- extra : moz-landing-system : lando
50 lines
1.2 KiB
C++
50 lines
1.2 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_SwapChain_H_
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#define GPU_SwapChain_H_
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#include "nsWrapperCache.h"
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#include "ObjectModel.h"
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#include "mozilla/webrender/WebRenderAPI.h"
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namespace mozilla {
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namespace dom {
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struct GPUExtent3DDict;
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struct GPUSwapChainDescriptor;
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} // namespace dom
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namespace webgpu {
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class Device;
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class Texture;
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class SwapChain final : public ObjectBase, public ChildOf<Device> {
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public:
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GPU_DECL_CYCLE_COLLECTION(SwapChain)
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GPU_DECL_JS_WRAP(SwapChain)
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SwapChain(const dom::GPUSwapChainDescriptor& aDesc,
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const dom::GPUExtent3DDict& aExtent3D,
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wr::ExternalImageId aExternalImageId, gfx::SurfaceFormat aFormat);
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WebGPUChild* GetGpuBridge() const;
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void Destroy(wr::ExternalImageId aExternalImageId);
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const gfx::SurfaceFormat mFormat;
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private:
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virtual ~SwapChain();
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void Cleanup();
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RefPtr<Texture> mTexture;
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public:
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RefPtr<Texture> GetCurrentTexture();
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};
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} // namespace webgpu
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} // namespace mozilla
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#endif // GPU_SwapChain_H_
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