| Flutter Impeller |

device_buffer_gles.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_GLES_DEVICE_BUFFER_GLES_H_
6 #define FLUTTER_IMPELLER_RENDERER_BACKEND_GLES_DEVICE_BUFFER_GLES_H_
7
8 #include <cstdint>
9 #include <memory>
10
11 #include "impeller/base/allocation.h"
12 #include "impeller/base/backend_cast.h"
13 #include "impeller/core/device_buffer.h"
14 #include "impeller/renderer/backend/gles/reactor_gles.h"
15
16 namespace impeller {
17
18 class DeviceBufferGLES final
19 : public DeviceBuffer,
20 public BackendCast<DeviceBufferGLES, DeviceBuffer> {
21 public:
22 DeviceBufferGLES(DeviceBufferDescriptor desc,
23 ReactorGLES::Ref reactor,
24 std::shared_ptr<Allocation> backing_store);
25
26 // |DeviceBuffer|
27 ~DeviceBufferGLES() override;
28
29 const uint8_t* GetBufferData() const;
30
31 void UpdateBufferData(
32 const std::function<void(uint8_t*, size_t length)>& update_buffer_data);
33
34 enum class BindingType {
35 kArrayBuffer,
36 kElementArrayBuffer,
37 };
38
39 [[nodiscard]] bool BindAndUploadDataIfNecessary(BindingType type) const;
40
41 void Flush(std::optional<Range> range = std::nullopt) const override;
42
43 private:
44 ReactorGLES::Ref reactor_;
45 HandleGLES handle_;
46 mutable std::shared_ptr<Allocation> backing_store_;
47 mutable std::optional<Range> dirty_range_ = std::nullopt;
48 mutable bool initialized_ = false;
49
50 // |DeviceBuffer|
51 uint8_t* OnGetContents() const override;
52
53 // |DeviceBuffer|
54 bool OnCopyHostBuffer(const uint8_t* source,
55 Range source_range,
56 size_t offset) override;
57
58 // |DeviceBuffer|
59 bool SetLabel(const std::string& label) override;
60
61 // |DeviceBuffer|
62 bool SetLabel(const std::string& label, Range range) override;
63
64 DeviceBufferGLES(const DeviceBufferGLES&) = delete;
65
66 DeviceBufferGLES& operator=(const DeviceBufferGLES&) = delete;
67 };
68
69 } // namespace impeller
70
71 #endif // FLUTTER_IMPELLER_RENDERER_BACKEND_GLES_DEVICE_BUFFER_GLES_H_
impeller::DeviceBufferGLES::BindingType::kArrayBuffer
@ kArrayBuffer
impeller::DeviceBuffer
Definition: device_buffer.h:18
allocation.h
impeller::DeviceBufferDescriptor
Definition: device_buffer_descriptor.h:14
device_buffer.h
impeller::ReactorGLES::Ref
std::shared_ptr< ReactorGLES > Ref
Definition: reactor_gles.h:86
impeller::DeviceBufferGLES
Definition: device_buffer_gles.h:18
offset
SeparatedVector2 offset
Definition: stroke_path_geometry.cc:304
impeller::DeviceBufferGLES::GetBufferData
const uint8_t * GetBufferData() const
Definition: device_buffer_gles.cc:125
impeller::DeviceBufferGLES::BindingType::kElementArrayBuffer
@ kElementArrayBuffer
impeller::DeviceBufferGLES::BindAndUploadDataIfNecessary
bool BindAndUploadDataIfNecessary(BindingType type) const
Definition: device_buffer_gles.cc:82
backend_cast.h
type
GLenum type
Definition: blit_command_gles.cc:127
impeller::HandleGLES
Represents a handle to an underlying OpenGL object. Unlike OpenGL object handles, these handles can b...
Definition: handle_gles.h:36
impeller::DeviceBufferGLES::~DeviceBufferGLES
~DeviceBufferGLES() override
Definition: device_buffer_gles.cc:25
impeller::DeviceBufferGLES::UpdateBufferData
void UpdateBufferData(const std::function< void(uint8_t *, size_t length)> &update_buffer_data)
Definition: device_buffer_gles.cc:129
impeller::DeviceBufferGLES::DeviceBufferGLES
DeviceBufferGLES(DeviceBufferDescriptor desc, ReactorGLES::Ref reactor, std::shared_ptr< Allocation > backing_store)
Definition: device_buffer_gles.cc:15
impeller::DeviceBufferGLES::BindingType
BindingType
Definition: device_buffer_gles.h:34
reactor_gles.h
impeller::Range
Definition: range.h:13
impeller::BackendCast
Definition: backend_cast.h:11
impeller
Definition: allocation.cc:12
impeller::DeviceBufferGLES::Flush
void Flush(std::optional< Range > range=std::nullopt) const override
Definition: device_buffer_gles.cc:59