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1 // Copyright (C) 2011, Google Inc. All rights reserved. | 1 // Copyright (C) 2011, Google Inc. All rights reserved. |
2 // | 2 // |
3 // Redistribution and use in source and binary forms, with or without | 3 // Redistribution and use in source and binary forms, with or without |
4 // modification, are permitted provided that the following conditions are met: | 4 // modification, are permitted provided that the following conditions are met: |
5 // | 5 // |
6 // 1. Redistributions of source code must retain the above copyright | 6 // 1. Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // 2. Redistributions in binary form must reproduce the above copyright | 8 // 2. Redistributions in binary form must reproduce the above copyright |
9 // notice, this list of conditions and the following disclaimer in the | 9 // notice, this list of conditions and the following disclaimer in the |
10 // documentation and/or other materials provided with the distribution. | 10 // documentation and/or other materials provided with the distribution. |
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27 #include "WebCommon.h" | 27 #include "WebCommon.h" |
28 | 28 |
29 #if BLINK_IMPLEMENTATION | 29 #if BLINK_IMPLEMENTATION |
30 #include "wtf/Assertions.h" | 30 #include "wtf/Assertions.h" |
31 #endif | 31 #endif |
32 | 32 |
33 namespace blink { | 33 namespace blink { |
34 | 34 |
35 #pragma pack(push, 1) | 35 #pragma pack(push, 1) |
36 | 36 |
| 37 #if defined(ENABLE_NEW_GAMEPAD_API) |
| 38 class WebGamepadButton { |
| 39 public: |
| 40 WebGamepadButton() |
| 41 : pressed(false) |
| 42 , value(0.f) |
| 43 { |
| 44 } |
| 45 WebGamepadButton(bool pressed, float value) |
| 46 : pressed(pressed) |
| 47 , value(value) |
| 48 { |
| 49 } |
| 50 bool pressed; |
| 51 float value; |
| 52 }; |
| 53 #endif |
| 54 |
37 // This structure is intentionally POD and fixed size so that it can be shared | 55 // This structure is intentionally POD and fixed size so that it can be shared |
38 // memory between hardware polling threads and the rest of the browser. See | 56 // memory between hardware polling threads and the rest of the browser. See |
39 // also WebGamepads.h. | 57 // also WebGamepads.h. |
40 class WebGamepad { | 58 class WebGamepad { |
41 public: | 59 public: |
42 static const size_t idLengthCap = 128; | 60 static const size_t idLengthCap = 128; |
| 61 static const size_t mappingLengthCap = 16; |
43 static const size_t axesLengthCap = 16; | 62 static const size_t axesLengthCap = 16; |
44 static const size_t buttonsLengthCap = 32; | 63 static const size_t buttonsLengthCap = 32; |
45 | 64 |
46 WebGamepad() | 65 WebGamepad() |
47 : connected(false) | 66 : connected(false) |
48 , timestamp(0) | 67 , timestamp(0) |
49 , axesLength(0) | 68 , axesLength(0) |
50 , buttonsLength(0) | 69 , buttonsLength(0) |
51 { | 70 { |
52 id[0] = 0; | 71 id[0] = 0; |
| 72 #if defined(ENABLE_NEW_GAMEPAD_API) |
| 73 mapping[0] = 0; |
| 74 #endif |
53 } | 75 } |
54 | 76 |
55 // Is there a gamepad connected at this index? | 77 // Is there a gamepad connected at this index? |
56 bool connected; | 78 bool connected; |
57 | 79 |
58 // Device identifier (based on manufacturer, model, etc.). | 80 // Device identifier (based on manufacturer, model, etc.). |
59 WebUChar id[idLengthCap]; | 81 WebUChar id[idLengthCap]; |
60 | 82 |
61 // Monotonically increasing value referring to when the data were last | 83 // Monotonically increasing value referring to when the data were last |
62 // updated. | 84 // updated. |
63 unsigned long long timestamp; | 85 unsigned long long timestamp; |
64 | 86 |
65 // Number of valid entries in the axes array. | 87 // Number of valid entries in the axes array. |
66 unsigned axesLength; | 88 unsigned axesLength; |
67 | 89 |
68 // Normalized values representing axes, in the range [-1..1]. | 90 // Normalized values representing axes, in the range [-1..1]. |
69 float axes[axesLengthCap]; | 91 float axes[axesLengthCap]; |
70 | 92 |
71 // Number of valid entries in the buttons array. | 93 // Number of valid entries in the buttons array. |
72 unsigned buttonsLength; | 94 unsigned buttonsLength; |
73 | 95 |
74 // Normalized values representing buttons, in the range [0..1]. | 96 #if defined(ENABLE_NEW_GAMEPAD_API) |
| 97 // Button states |
| 98 WebGamepadButton buttons[buttonsLengthCap]; |
| 99 |
| 100 // Mapping type (for example "standard") |
| 101 WebUChar mapping[mappingLengthCap]; |
| 102 #else |
75 float buttons[buttonsLengthCap]; | 103 float buttons[buttonsLengthCap]; |
| 104 #endif |
76 }; | 105 }; |
77 | 106 |
78 #if BLINK_IMPLEMENTATION | 107 #if BLINK_IMPLEMENTATION |
| 108 #if defined(ENABLE_NEW_GAMEPAD_API) |
| 109 COMPILE_ASSERT(sizeof(WebGamepad) == 529, WebGamepad_has_wrong_size); |
| 110 #else |
79 COMPILE_ASSERT(sizeof(WebGamepad) == 465, WebGamepad_has_wrong_size); | 111 COMPILE_ASSERT(sizeof(WebGamepad) == 465, WebGamepad_has_wrong_size); |
80 #endif | 112 #endif |
| 113 #endif |
81 | 114 |
82 #pragma pack(pop) | 115 #pragma pack(pop) |
83 | 116 |
84 } | 117 } |
85 | 118 |
86 #endif // WebGamepad_h | 119 #endif // WebGamepad_h |
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