1/*
2 * Copyright (C) 2019 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 "WebGPURenderPassDescriptor.h"
28
29#if ENABLE(WEBGPU)
30
31#include "GPURenderPassDescriptor.h"
32#include "Logging.h"
33
34namespace WebCore {
35
36GPURenderPassColorAttachmentDescriptor::GPURenderPassColorAttachmentDescriptor(Ref<GPUTexture>&& texture, const GPURenderPassColorAttachmentDescriptorBase& base)
37 : GPURenderPassColorAttachmentDescriptorBase(base)
38 , attachment(WTFMove(texture))
39{
40}
41
42GPURenderPassDepthStencilAttachmentDescriptor::GPURenderPassDepthStencilAttachmentDescriptor(Ref<GPUTexture>&& texture, const GPURenderPassDepthStencilAttachmentDescriptorBase& base)
43 : GPURenderPassDepthStencilAttachmentDescriptorBase(base)
44 , attachment(WTFMove(texture))
45{
46}
47
48Optional<GPURenderPassDescriptor> WebGPURenderPassDescriptor::tryCreateGPURenderPassDescriptor() const
49{
50 // FIXME: Improve error checking as WebGPURenderPassDescriptor is added to spec.
51 if (colorAttachments.isEmpty()) {
52 LOG(WebGPU, "GPURenderPassDescriptor: No color attachments specified for GPURenderPassDescriptor!");
53 return WTF::nullopt;
54 }
55
56 Vector<GPURenderPassColorAttachmentDescriptor> gpuColorAttachments;
57
58 for (const auto& colorAttachment : colorAttachments) {
59 if (!colorAttachment.attachment
60 || !colorAttachment.attachment->texture()
61 || !colorAttachment.attachment->texture()->isOutputAttachment()) {
62 LOG(WebGPU, "GPURenderPassDescriptor: Invalid attachment in GPURenderPassColorAttachmentDescriptor!");
63 return WTF::nullopt;
64 }
65 gpuColorAttachments.append(GPURenderPassColorAttachmentDescriptor { makeRef(*colorAttachment.attachment->texture()), colorAttachment });
66 }
67
68 Optional<GPURenderPassDepthStencilAttachmentDescriptor> gpuDepthAttachment;
69
70 if (depthStencilAttachment) {
71 if (!depthStencilAttachment->attachment
72 || !depthStencilAttachment->attachment->texture()
73 || !depthStencilAttachment->attachment->texture()->isOutputAttachment()) {
74 LOG(WebGPU, "GPURenderPassDescriptor: Invalid attachment in GPURenderPassDepthStencilAttachmentDescriptor!");
75 return WTF::nullopt;
76 }
77 gpuDepthAttachment = GPURenderPassDepthStencilAttachmentDescriptor { makeRef(*depthStencilAttachment->attachment->texture()), *depthStencilAttachment };
78 }
79
80 return GPURenderPassDescriptor { WTFMove(gpuColorAttachments), WTFMove(gpuDepthAttachment) };
81}
82
83} // namespace WebCore
84
85#endif // ENABLE(WEBGPU)
86