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
101
102
103
104
105
106
107
108
109
110
111
|
// Copyright 2019 The Chromium Authors
// 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_GPU_BUFFER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBGPU_GPU_BUFFER_H_
#include <optional>
#include "third_party/blink/renderer/bindings/core/v8/script_promise.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/core/typed_arrays/array_buffer_view_helpers.h"
#include "third_party/blink/renderer/modules/webgpu/dawn_object.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
namespace blink {
class DOMArrayBuffer;
class GPUBufferDescriptor;
class GPUMappedDOMArrayBuffer;
struct BoxedMappableWGPUBufferHandles;
class ScriptState;
class V8GPUBufferMapState;
class GPUBuffer : public DawnObject<wgpu::Buffer> {
DEFINE_WRAPPERTYPEINFO();
public:
static GPUBuffer* Create(GPUDevice* device,
const GPUBufferDescriptor* webgpu_desc,
ExceptionState& exception_state);
GPUBuffer(GPUDevice* device,
uint64_t size,
wgpu::Buffer buffer,
const String& label);
~GPUBuffer() override;
GPUBuffer(const GPUBuffer&) = delete;
GPUBuffer& operator=(const GPUBuffer&) = delete;
void Trace(Visitor* visitor) const override;
// gpu_buffer.idl {{{
ScriptPromise<IDLUndefined> mapAsync(ScriptState* script_state,
uint32_t mode,
uint64_t offset,
ExceptionState& exception_state);
ScriptPromise<IDLUndefined> mapAsync(ScriptState* script_state,
uint32_t mode,
uint64_t offset,
uint64_t size,
ExceptionState& exception_state);
DOMArrayBuffer* getMappedRange(ScriptState* script_state,
uint64_t offset,
ExceptionState& exception_state);
DOMArrayBuffer* getMappedRange(ScriptState* script_state,
uint64_t offset,
uint64_t size,
ExceptionState& exception_state);
void unmap(v8::Isolate* isolate);
void destroy(v8::Isolate* isolate);
uint64_t size() const;
uint32_t usage() const;
V8GPUBufferMapState mapState() const;
// }}} End of WebIDL binding implementation.
void DetachMappedArrayBuffers(v8::Isolate* isolate);
private:
ScriptPromise<IDLUndefined> MapAsyncImpl(ScriptState* script_state,
uint32_t mode,
uint64_t offset,
std::optional<uint64_t> size,
ExceptionState& exception_state);
DOMArrayBuffer* GetMappedRangeImpl(ScriptState* script_state,
uint64_t offset,
std::optional<uint64_t> size,
ExceptionState& exception_state);
void OnMapAsyncCallback(ScriptPromiseResolver<IDLUndefined>* resolver,
wgpu::MapAsyncStatus status,
wgpu::StringView message);
DOMArrayBuffer* CreateArrayBufferForMappedData(v8::Isolate* isolate,
void* data,
size_t data_length);
void ResetMappingState(v8::Isolate* isolate);
void SetLabelImpl(const String& value) override {
std::string utf8_label = value.Utf8();
GetHandle().SetLabel(utf8_label.c_str());
}
uint64_t size_;
// Holds onto any ArrayBuffers returned by getMappedRange, mapReadAsync, or
// mapWriteAsync.
HeapVector<Member<GPUMappedDOMArrayBuffer>> mapped_array_buffers_;
// Mappable buffers remove themselves from this set on destruction.
// It tracks the set of buffers that need to be destroyed in the
// GPU::ContextDestroyed notification.
scoped_refptr<BoxedMappableWGPUBufferHandles> mappable_buffer_handles_;
// List of ranges currently returned by getMappedRange, to avoid overlaps.
Vector<std::pair<size_t, size_t>> mapped_ranges_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBGPU_GPU_BUFFER_H_
|
