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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "device/gamepad/gamepad_shared_buffer.h" | 5 #include "device/gamepad/gamepad_shared_buffer.h" |
6 | 6 |
7 namespace device { | 7 namespace device { |
8 | 8 |
9 GamepadSharedBuffer::GamepadSharedBuffer() { | 9 GamepadSharedBuffer::GamepadSharedBuffer() { |
10 size_t data_size = sizeof(GamepadHardwareBuffer); | 10 size_t data_size = sizeof(GamepadHardwareBuffer); |
11 bool res = shared_memory_.CreateAndMapAnonymous(data_size); | 11 bool res = shared_memory_.CreateAndMapAnonymous(data_size); |
12 CHECK(res); | 12 CHECK(res); |
13 | 13 |
14 void* mem = shared_memory_.memory(); | 14 void* mem = shared_memory_.memory(); |
15 DCHECK(mem); | 15 DCHECK(mem); |
16 hardware_buffer_ = new (mem) GamepadHardwareBuffer(); | 16 hardware_buffer_ = new (mem) GamepadHardwareBuffer(); |
17 memset(&(hardware_buffer_->data), 0, sizeof(blink::WebGamepads)); | 17 memset(&(hardware_buffer_->data), 0, sizeof(Gamepads)); |
18 } | 18 } |
19 | 19 |
20 GamepadSharedBuffer::~GamepadSharedBuffer() {} | 20 GamepadSharedBuffer::~GamepadSharedBuffer() {} |
21 | 21 |
22 base::SharedMemory* GamepadSharedBuffer::shared_memory() { | 22 base::SharedMemory* GamepadSharedBuffer::shared_memory() { |
23 return &shared_memory_; | 23 return &shared_memory_; |
24 } | 24 } |
25 | 25 |
26 blink::WebGamepads* GamepadSharedBuffer::buffer() { | 26 Gamepads* GamepadSharedBuffer::buffer() { |
27 return &(hardware_buffer()->data); | 27 return &(hardware_buffer()->data); |
28 } | 28 } |
29 | 29 |
30 GamepadHardwareBuffer* GamepadSharedBuffer::hardware_buffer() { | 30 GamepadHardwareBuffer* GamepadSharedBuffer::hardware_buffer() { |
31 return hardware_buffer_; | 31 return hardware_buffer_; |
32 } | 32 } |
33 | 33 |
34 void GamepadSharedBuffer::WriteBegin() { | 34 void GamepadSharedBuffer::WriteBegin() { |
35 hardware_buffer_->seqlock.WriteBegin(); | 35 hardware_buffer_->seqlock.WriteBegin(); |
36 } | 36 } |
37 | 37 |
38 void GamepadSharedBuffer::WriteEnd() { | 38 void GamepadSharedBuffer::WriteEnd() { |
39 hardware_buffer_->seqlock.WriteEnd(); | 39 hardware_buffer_->seqlock.WriteEnd(); |
40 } | 40 } |
41 | 41 |
42 } // namespace device | 42 } // namespace device |
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