Flutter Impeller
device_buffer_mtl.h
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef FLUTTER_IMPELLER_RENDERER_BACKEND_METAL_DEVICE_BUFFER_MTL_H_
6 #define FLUTTER_IMPELLER_RENDERER_BACKEND_METAL_DEVICE_BUFFER_MTL_H_
7 
8 #include <Metal/Metal.h>
9 
12 
13 namespace impeller {
14 
15 class DeviceBufferMTL final
16  : public DeviceBuffer,
17  public BackendCast<DeviceBufferMTL, DeviceBuffer> {
18  public:
20 
21  // |DeviceBuffer|
22  ~DeviceBufferMTL() override;
23 
24  id<MTLBuffer> GetMTLBuffer() const;
25 
26  private:
27  friend class AllocatorMTL;
28 
29  const id<MTLBuffer> buffer_;
30  const MTLStorageMode storage_mode_;
31 
33  id<MTLBuffer> buffer,
34  MTLStorageMode storage_mode);
35 
36  // |DeviceBuffer|
37  uint8_t* OnGetContents() const override;
38 
39  // |DeviceBuffer|
40  bool OnCopyHostBuffer(const uint8_t* source,
41  Range source_range,
42  size_t offset) override;
43 
44  // |DeviceBuffer|
45  bool SetLabel(std::string_view label) override;
46 
47  // |DeviceBuffer|
48  bool SetLabel(std::string_view label, Range range) override;
49 
50  // |DeviceBuffer|
51  void Flush(std::optional<Range> range) const override;
52 
53  DeviceBufferMTL(const DeviceBufferMTL&) = delete;
54 
55  DeviceBufferMTL& operator=(const DeviceBufferMTL&) = delete;
56 };
57 
58 } // namespace impeller
59 
60 #endif // FLUTTER_IMPELLER_RENDERER_BACKEND_METAL_DEVICE_BUFFER_MTL_H_
id< MTLBuffer > GetMTLBuffer() const