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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 #ifndef PPAPI_SHARED_IMPL_PPB_GAMEPAD_SHARED_H_ | 5 #ifndef PPAPI_SHARED_IMPL_PPB_GAMEPAD_SHARED_H_ |
| 6 #define PPAPI_SHARED_IMPL_PPB_GAMEPAD_SHARED_H_ | 6 #define PPAPI_SHARED_IMPL_PPB_GAMEPAD_SHARED_H_ |
| 7 | 7 |
| 8 #include "base/atomicops.h" | 8 #include "base/atomicops.h" |
| 9 #include "base/strings/string16.h" | 9 #include "base/strings/string16.h" |
| 10 #include "ppapi/c/ppb_gamepad.h" | 10 #include "ppapi/c/ppb_gamepad.h" |
| 11 #include "ppapi/shared_impl/ppapi_shared_export.h" | 11 #include "ppapi/shared_impl/ppapi_shared_export.h" |
| 12 | 12 |
| 13 namespace ppapi { | 13 namespace ppapi { |
| 14 | 14 |
| 15 // TODO(brettw) when we remove the non-IPC-based gamepad implementation, this | 15 // TODO(brettw) when we remove the non-IPC-based gamepad implementation, this |
| 16 // code should all move into the GamepadResource. | 16 // code should all move into the GamepadResource. |
| 17 | 17 |
| 18 #pragma pack(push, 1) | 18 #pragma pack(push, 1) |
| 19 | 19 |
| 20 // This must match the definition of WebKit::Gamepad. The GamepadHost unit test | 20 // This must match the definition of blink::Gamepad. The GamepadHost unit test |
| 21 // has some compile asserts to validate this. | 21 // has some compile asserts to validate this. |
| 22 struct WebKitGamepad { | 22 struct WebKitGamepad { |
| 23 static const size_t kIdLengthCap = 128; | 23 static const size_t kIdLengthCap = 128; |
| 24 static const size_t kAxesLengthCap = 16; | 24 static const size_t kAxesLengthCap = 16; |
| 25 static const size_t kButtonsLengthCap = 32; | 25 static const size_t kButtonsLengthCap = 32; |
| 26 | 26 |
| 27 // Is there a gamepad connected at this index? | 27 // Is there a gamepad connected at this index? |
| 28 bool connected; | 28 bool connected; |
| 29 | 29 |
| 30 // Device identifier (based on manufacturer, model, etc.). | 30 // Device identifier (based on manufacturer, model, etc.). |
| 31 char16 id[kIdLengthCap]; | 31 char16 id[kIdLengthCap]; |
| 32 | 32 |
| 33 // Monotonically increasing value referring to when the data were last | 33 // Monotonically increasing value referring to when the data were last |
| 34 // updated. | 34 // updated. |
| 35 unsigned long long timestamp; | 35 unsigned long long timestamp; |
| 36 | 36 |
| 37 // Number of valid entries in the axes array. | 37 // Number of valid entries in the axes array. |
| 38 unsigned axes_length; | 38 unsigned axes_length; |
| 39 | 39 |
| 40 // Normalized values representing axes, in the range [-1..1]. | 40 // Normalized values representing axes, in the range [-1..1]. |
| 41 float axes[kAxesLengthCap]; | 41 float axes[kAxesLengthCap]; |
| 42 | 42 |
| 43 // Number of valid entries in the buttons array. | 43 // Number of valid entries in the buttons array. |
| 44 unsigned buttons_length; | 44 unsigned buttons_length; |
| 45 | 45 |
| 46 // Normalized values representing buttons, in the range [0..1]. | 46 // Normalized values representing buttons, in the range [0..1]. |
| 47 float buttons[kButtonsLengthCap]; | 47 float buttons[kButtonsLengthCap]; |
| 48 }; | 48 }; |
| 49 | 49 |
| 50 // This must match the definition of WebKit::Gamepads. The GamepadHost unit | 50 // This must match the definition of blink::Gamepads. The GamepadHost unit |
| 51 // test has some compile asserts to validate this. | 51 // test has some compile asserts to validate this. |
| 52 struct WebKitGamepads { | 52 struct WebKitGamepads { |
| 53 static const size_t kItemsLengthCap = 4; | 53 static const size_t kItemsLengthCap = 4; |
| 54 | 54 |
| 55 // Number of valid entries in the items array. | 55 // Number of valid entries in the items array. |
| 56 unsigned length; | 56 unsigned length; |
| 57 | 57 |
| 58 // Gamepad data for N separate gamepad devices. | 58 // Gamepad data for N separate gamepad devices. |
| 59 WebKitGamepad items[kItemsLengthCap]; | 59 WebKitGamepad items[kItemsLengthCap]; |
| 60 }; | 60 }; |
| 61 | 61 |
| 62 // This is the structure store in shared memory. It must match | 62 // This is the structure store in shared memory. It must match |
| 63 // content/common/gamepad_hardware_buffer.h. The GamepadHost unit test has | 63 // content/common/gamepad_hardware_buffer.h. The GamepadHost unit test has |
| 64 // some compile asserts to validate this. | 64 // some compile asserts to validate this. |
| 65 struct ContentGamepadHardwareBuffer { | 65 struct ContentGamepadHardwareBuffer { |
| 66 base::subtle::Atomic32 sequence; | 66 base::subtle::Atomic32 sequence; |
| 67 WebKitGamepads buffer; | 67 WebKitGamepads buffer; |
| 68 }; | 68 }; |
| 69 | 69 |
| 70 #pragma pack(pop) | 70 #pragma pack(pop) |
| 71 | 71 |
| 72 PPAPI_SHARED_EXPORT void ConvertWebKitGamepadData( | 72 PPAPI_SHARED_EXPORT void ConvertWebKitGamepadData( |
| 73 const WebKitGamepads& webkit_data, | 73 const WebKitGamepads& webkit_data, |
| 74 PP_GamepadsSampleData* output_data); | 74 PP_GamepadsSampleData* output_data); |
| 75 | 75 |
| 76 } // namespace ppapi | 76 } // namespace ppapi |
| 77 | 77 |
| 78 #endif // PPAPI_SHARED_IMPL_PPB_GAMEPAD_SHARED_H_ | 78 #endif // PPAPI_SHARED_IMPL_PPB_GAMEPAD_SHARED_H_ |
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