blob: 4d37448c09daa8f9b4df46596ca215d5b5b992e7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_WEBGPU_DAWN_CONVERSIONS_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBGPU_DAWN_CONVERSIONS_H_
#include <dawn/webgpu.h>
#include <memory>
#include "base/check.h"
#include "third_party/blink/renderer/modules/webgpu/dawn_object.h"
#include "third_party/blink/renderer/platform/heap/heap_allocator.h"
#include "third_party/blink/renderer/platform/heap/member.h"
// This file provides helpers for converting WebGPU objects, descriptors,
// and enums from Blink to Dawn types.
namespace blink {
class DoubleSequenceOrGPUColorDict;
class GPUColorDict;
class GPUProgrammableStageDescriptor;
class GPUTextureCopyView;
class GPUTextureDataLayout;
class UnsignedLongEnforceRangeSequenceOrGPUExtent3DDict;
class UnsignedLongEnforceRangeSequenceOrGPUOrigin3DDict;
// Convert WebGPU bitfield values to Dawn enums. These have the same value.
template <typename DawnEnum>
DawnEnum AsDawnEnum(uint32_t webgpu_enum) {
return static_cast<DawnEnum>(webgpu_enum);
}
// Convert WebGPU string enums to Dawn enums.
template <typename DawnEnum>
DawnEnum AsDawnEnum(const WTF::String& webgpu_enum);
// These conversions are used multiple times and are declared here. Conversions
// used only once, for example for object construction, are defined
// individually.
WGPUColor AsDawnColor(const Vector<double>&);
WGPUColor AsDawnType(const GPUColorDict*);
WGPUColor AsDawnType(const DoubleSequenceOrGPUColorDict*);
WGPUExtent3D AsDawnType(
const UnsignedLongEnforceRangeSequenceOrGPUExtent3DDict*);
WGPUOrigin3D AsDawnType(
const UnsignedLongEnforceRangeSequenceOrGPUOrigin3DDict*);
WGPUTextureCopyView AsDawnType(const GPUTextureCopyView* webgpu_view,
GPUDevice* device);
const char* ValidateTextureDataLayout(const GPUTextureDataLayout* webgpu_layout,
WGPUTextureDataLayout* layout);
using OwnedProgrammableStageDescriptor =
std::tuple<WGPUProgrammableStageDescriptor, std::unique_ptr<char[]>>;
OwnedProgrammableStageDescriptor AsDawnType(
const GPUProgrammableStageDescriptor*);
// WebGPU objects are converted to Dawn objects by getting the opaque handle
// which can be passed to Dawn.
template <typename Handle>
Handle AsDawnType(const DawnObject<Handle>* object) {
DCHECK(object);
return object->GetHandle();
}
template <typename WebGPUType>
using TypeOfDawnType = decltype(AsDawnType(std::declval<const WebGPUType*>()));
// Helper for converting a list of objects to Dawn structs or handles
template <typename WebGPUType>
std::unique_ptr<TypeOfDawnType<WebGPUType>[]> AsDawnType(
const HeapVector<Member<WebGPUType>>& webgpu_objects) {
using DawnType = TypeOfDawnType<WebGPUType>;
wtf_size_t count = webgpu_objects.size();
// TODO(enga): Pass in temporary memory or an allocator so we don't make a
// separate memory allocation here.
std::unique_ptr<DawnType[]> dawn_objects(new DawnType[count]);
for (wtf_size_t i = 0; i < count; ++i) {
dawn_objects[i] = AsDawnType(webgpu_objects[i].Get());
}
return dawn_objects;
}
template <typename DawnEnum, typename WebGPUEnum>
std::unique_ptr<DawnEnum[]> AsDawnEnum(const Vector<WebGPUEnum>& webgpu_enums) {
wtf_size_t count = webgpu_enums.size();
// TODO(enga): Pass in temporary memory or an allocator so we don't make a
// separate memory allocation here.
std::unique_ptr<DawnEnum[]> dawn_enums(new DawnEnum[count]);
for (wtf_size_t i = 0; i < count; ++i) {
dawn_enums[i] = AsDawnEnum<DawnEnum>(webgpu_enums[i]);
}
return dawn_enums;
}
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBGPU_DAWN_CONVERSIONS_H_
|
