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#include "config.h"
27#include "GPUCanvasContext.h"
28#include "InspectorInstrumentation.h"
29#include "Logging.h"
30#include "WebGPUSwapChainDescriptor.h"
31
32#if ENABLE(WEBGPU)
33
34#include <wtf/IsoMallocInlines.h>
35
36namespace WebCore {
37
38WTF_MAKE_ISO_ALLOCATED_IMPL(GPUCanvasContext);
39
40std::unique_ptr<GPUCanvasContext> GPUCanvasContext::create(CanvasBase& canvas)
41{
42 auto context = std::unique_ptr<GPUCanvasContext>(new GPUCanvasContext(canvas));
43 context->suspendIfNeeded();
44
45 InspectorInstrumentation::didCreateCanvasRenderingContext(*context);
46
47 return context;
48}
49
50GPUCanvasContext::GPUCanvasContext(CanvasBase& canvas)
51 : GPUBasedCanvasRenderingContext(canvas)
52{
53}
54
55Ref<WebGPUSwapChain> GPUCanvasContext::configureSwapChain(const WebGPUSwapChainDescriptor& descriptor)
56{
57 auto gpuDescriptor = descriptor.asGPUSwapChainDescriptor();
58 if (!gpuDescriptor)
59 return WebGPUSwapChain::create(nullptr);
60
61 auto gpuSwapChain = GPUSwapChain::tryCreate(*gpuDescriptor, canvasBase().width(), canvasBase().height());
62 bool success = gpuSwapChain;
63 auto newSwapChain = WebGPUSwapChain::create(WTFMove(gpuSwapChain));
64
65 // Upon success, invalidate and replace any existing swap chain.
66 if (success) {
67 // FIXME: Test that this works as expected with error reporting.
68 if (m_swapChain)
69 m_swapChain->destroy();
70
71 m_swapChain = newSwapChain.copyRef();
72 }
73
74 return newSwapChain;
75}
76
77CALayer* GPUCanvasContext::platformLayer() const
78{
79 if (m_swapChain && m_swapChain->swapChain())
80 return m_swapChain->swapChain()->platformLayer();
81 return nullptr;
82}
83
84void GPUCanvasContext::reshape(int width, int height)
85{
86 if (m_swapChain && m_swapChain->swapChain())
87 m_swapChain->swapChain()->reshape(width, height);
88}
89
90void GPUCanvasContext::markLayerComposited()
91{
92 if (m_swapChain && m_swapChain->swapChain())
93 m_swapChain->swapChain()->present();
94}
95
96} // namespace WebCore
97
98#endif // ENABLE(WEBGPU)
99