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Side by Side Diff: public/platform/WebGamepad.h

Issue 196833003: Removed Blink Gamepad transition cruft (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 6 years, 9 months ago
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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 { 37 class WebGamepadButton {
39 public: 38 public:
40 WebGamepadButton() 39 WebGamepadButton()
41 : pressed(false) 40 : pressed(false)
42 , value(0.f) 41 , value(0.f)
43 { 42 {
44 } 43 }
45 WebGamepadButton(bool pressed, float value) 44 WebGamepadButton(bool pressed, float value)
46 : pressed(pressed) 45 : pressed(pressed)
47 , value(value) 46 , value(value)
48 { 47 {
49 } 48 }
50 bool pressed; 49 bool pressed;
51 float value; 50 float value;
52 }; 51 };
53 #endif
54 52
55 // This structure is intentionally POD and fixed size so that it can be shared 53 // This structure is intentionally POD and fixed size so that it can be shared
56 // memory between hardware polling threads and the rest of the browser. See 54 // memory between hardware polling threads and the rest of the browser. See
57 // also WebGamepads.h. 55 // also WebGamepads.h.
58 class WebGamepad { 56 class WebGamepad {
59 public: 57 public:
60 static const size_t idLengthCap = 128; 58 static const size_t idLengthCap = 128;
61 static const size_t mappingLengthCap = 16; 59 static const size_t mappingLengthCap = 16;
62 static const size_t axesLengthCap = 16; 60 static const size_t axesLengthCap = 16;
63 static const size_t buttonsLengthCap = 32; 61 static const size_t buttonsLengthCap = 32;
64 62
65 WebGamepad() 63 WebGamepad()
66 : connected(false) 64 : connected(false)
67 , timestamp(0) 65 , timestamp(0)
68 , axesLength(0) 66 , axesLength(0)
69 , buttonsLength(0) 67 , buttonsLength(0)
70 { 68 {
71 id[0] = 0; 69 id[0] = 0;
72 #if defined(ENABLE_NEW_GAMEPAD_API)
73 mapping[0] = 0; 70 mapping[0] = 0;
74 #endif
75 } 71 }
76 72
77 // Is there a gamepad connected at this index? 73 // Is there a gamepad connected at this index?
78 bool connected; 74 bool connected;
79 75
80 // Device identifier (based on manufacturer, model, etc.). 76 // Device identifier (based on manufacturer, model, etc.).
81 WebUChar id[idLengthCap]; 77 WebUChar id[idLengthCap];
82 78
83 // Monotonically increasing value referring to when the data were last 79 // Monotonically increasing value referring to when the data were last
84 // updated. 80 // updated.
85 unsigned long long timestamp; 81 unsigned long long timestamp;
86 82
87 // Number of valid entries in the axes array. 83 // Number of valid entries in the axes array.
88 unsigned axesLength; 84 unsigned axesLength;
89 85
90 // Normalized values representing axes, in the range [-1..1]. 86 // Normalized values representing axes, in the range [-1..1].
91 float axes[axesLengthCap]; 87 float axes[axesLengthCap];
92 88
93 // Number of valid entries in the buttons array. 89 // Number of valid entries in the buttons array.
94 unsigned buttonsLength; 90 unsigned buttonsLength;
95 91
96 #if defined(ENABLE_NEW_GAMEPAD_API)
97 // Button states 92 // Button states
98 WebGamepadButton buttons[buttonsLengthCap]; 93 WebGamepadButton buttons[buttonsLengthCap];
99 94
100 // Mapping type (for example "standard") 95 // Mapping type (for example "standard")
101 WebUChar mapping[mappingLengthCap]; 96 WebUChar mapping[mappingLengthCap];
102 #else
103 float buttons[buttonsLengthCap];
104 #endif
105 }; 97 };
106 98
107 #if BLINK_IMPLEMENTATION 99 #if BLINK_IMPLEMENTATION
108 #if defined(ENABLE_NEW_GAMEPAD_API)
109 COMPILE_ASSERT(sizeof(WebGamepad) == 529, WebGamepad_has_wrong_size); 100 COMPILE_ASSERT(sizeof(WebGamepad) == 529, WebGamepad_has_wrong_size);
110 #else
111 COMPILE_ASSERT(sizeof(WebGamepad) == 465, WebGamepad_has_wrong_size);
112 #endif
113 #endif 101 #endif
114 102
115 #pragma pack(pop) 103 #pragma pack(pop)
116 104
117 } 105 }
118 106
119 #endif // WebGamepad_h 107 #endif // WebGamepad_h
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