File: gpu_supported_features.h

package info (click to toggle)
chromium 139.0.7258.127-1
  • links: PTS, VCS
  • area: main
  • in suites:
  • size: 6,122,068 kB
  • sloc: cpp: 35,100,771; ansic: 7,163,530; javascript: 4,103,002; python: 1,436,920; asm: 946,517; xml: 746,709; pascal: 187,653; perl: 88,691; sh: 88,436; objc: 79,953; sql: 51,488; cs: 44,583; fortran: 24,137; makefile: 22,147; tcl: 15,277; php: 13,980; yacc: 8,984; ruby: 7,485; awk: 3,720; lisp: 3,096; lex: 1,327; ada: 727; jsp: 228; sed: 36
file content (78 lines) | stat: -rw-r--r-- 2,848 bytes parent folder | download | duplicates (5)
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
// Copyright 2021 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_SUPPORTED_FEATURES_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBGPU_GPU_SUPPORTED_FEATURES_H_

#include <bitset>

#include "third_party/blink/renderer/bindings/core/v8/iterable.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_gpu_feature_name.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_sync_iterator_gpu_supported_features.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/graphics/gpu/webgpu_cpp.h"
#include "third_party/blink/renderer/platform/wtf/hash_set.h"

namespace blink {

class GPUSupportedFeatures : public ScriptWrappable,
                             public ValueSyncIterable<GPUSupportedFeatures> {
  DEFINE_WRAPPERTYPEINFO();

 public:
  static std::optional<V8GPUFeatureName::Enum> ToV8FeatureNameEnum(
      wgpu::FeatureName f);

  GPUSupportedFeatures();
  explicit GPUSupportedFeatures(
      const wgpu::SupportedFeatures& supported_features);

  void AddFeatureName(const V8GPUFeatureName feature_name);

  const HashSet<String>& FeatureNameSet() const { return features_; }
  // Fast path, it allows to avoid hash computation from string for
  // checking features.
  bool Has(const V8GPUFeatureName::Enum feature) const;

  // gpu_supported_features.idl {{{
  bool hasForBinding(ScriptState* script_state,
                     const String& feature,
                     ExceptionState& exception_state) const;
  unsigned size() const { return features_.size(); }
  // }}} End of WebIDL binding implementation.

 private:
  HashSet<String> features_;

  // For fast path. Make a copy that is synched with features_ to allow
  // checking features with bitset test by V8GPUFeatureName::Enum.
  std::bitset<V8GPUFeatureName::kEnumSize> features_bitset_;

  class IterationSource final
      : public ValueSyncIterable<GPUSupportedFeatures>::IterationSource {
   public:
    explicit IterationSource(const HashSet<String>& features);

    bool FetchNextItem(ScriptState* script_state,
                       String& value,
                       ExceptionState& exception_state) override;

   private:
    HashSet<String> features_;
    HashSet<String>::iterator iter_;
  };

  // Starts iteration over the Setlike.
  // Needed for ValueSyncIterable to work properly.
  GPUSupportedFeatures::IterationSource* CreateIterationSource(
      ScriptState* script_state,
      ExceptionState& exception_state) override {
    return MakeGarbageCollected<GPUSupportedFeatures::IterationSource>(
        features_);
  }
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBGPU_GPU_SUPPORTED_FEATURES_H_