1/*
2 * Copyright (C) 2018 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#if ENABLE(WEBGPU)
29
30#include "GPUBasedCanvasRenderingContext.h"
31#include "HTMLCanvasElement.h"
32#include "WebGPUSwapChain.h"
33#include <wtf/RefPtr.h>
34
35namespace WebCore {
36
37struct WebGPUSwapChainDescriptor;
38
39class GPUCanvasContext final : public GPUBasedCanvasRenderingContext {
40 WTF_MAKE_ISO_ALLOCATED(GPUCanvasContext);
41public:
42 static std::unique_ptr<GPUCanvasContext> create(CanvasBase&);
43
44 HTMLCanvasElement& canvas() const { return downcast<HTMLCanvasElement>(canvasBase()); }
45
46 Ref<WebGPUSwapChain> configureSwapChain(const WebGPUSwapChainDescriptor&);
47
48private:
49 GPUCanvasContext(CanvasBase&);
50
51 // GPUBasedCanvasRenderingContext
52 bool isWebGPU() const final { return true; }
53 PlatformLayer* platformLayer() const final;
54 void reshape(int width, int height) final;
55 void markLayerComposited() final;
56 const char* activeDOMObjectName() const final { return "GPUCanvasContext"; }
57 // FIXME: Stubs.
58 bool hasPendingActivity() const final { return false; }
59 void stop() final { }
60 bool canSuspendForDocumentSuspension() const final { return false; }
61
62 RefPtr<WebGPUSwapChain> m_swapChain;
63};
64
65} // namespace WebCore
66
67SPECIALIZE_TYPE_TRAITS_CANVASRENDERINGCONTEXT(WebCore::GPUCanvasContext, isWebGPU())
68
69#endif // ENABLE(WEBGPU)
70