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1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
scottmg
2014/02/03 23:58:15
nit; 2014
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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 CONTENT_BROWSER_GAMEPAD_RAW_INPUT_DATA_FETCHER_WIN_H_ | |
6 #define CONTENT_BROWSER_GAMEPAD_RAW_INPUT_DATA_FETCHER_WIN_H_ | |
7 | |
8 #include "build/build_config.h" | |
9 | |
10 #ifndef WIN32_LEAN_AND_MEAN | |
11 #define WIN32_LEAN_AND_MEAN | |
scottmg
2014/02/03 23:58:15
is this necessary to avoid a conflict? there's oth
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12 #endif | |
13 #include <stdlib.h> | |
14 #include <Unknwn.h> | |
15 #include <WinDef.h> | |
16 #include <windows.h> | |
17 | |
18 #include <hidsdi.h> | |
19 #include <map> | |
20 #include <vector> | |
21 | |
22 #include "base/memory/scoped_ptr.h" | |
23 #include "base/memory/weak_ptr.h" | |
24 #include "base/message_loop/message_loop.h" | |
25 #include "base/scoped_native_library.h" | |
26 #include "base/win/message_window.h" | |
27 #include "content/browser/gamepad/gamepad_data_fetcher.h" | |
28 #include "content/browser/gamepad/gamepad_standard_mappings.h" | |
29 #include "third_party/WebKit/public/platform/WebGamepads.h" | |
30 | |
31 namespace content { | |
32 | |
33 struct RawGamepadAxis { | |
34 HIDP_VALUE_CAPS caps; | |
35 float value; | |
36 }; | |
37 | |
38 struct RawGamepadInfo { | |
39 HANDLE handle; | |
40 scoped_ptr<uint8[]> ppd_buffer; | |
41 PHIDP_PREPARSED_DATA preparsed_data; | |
42 | |
43 uint32_t report_id; | |
44 uint32_t vendor_id; | |
45 uint32_t product_id; | |
46 | |
47 wchar_t id[blink::WebGamepad::idLengthCap]; | |
48 | |
49 uint32_t button_caps_length; | |
50 scoped_ptr<HIDP_BUTTON_CAPS[]> button_caps; | |
51 | |
52 uint32_t buttons_length; | |
53 bool buttons[blink::WebGamepad::buttonsLengthCap]; | |
54 | |
55 uint32_t axes_length; | |
56 RawGamepadAxis axes[blink::WebGamepad::axesLengthCap]; | |
57 }; | |
58 | |
59 class RawInputDataFetcher | |
60 : public base::SupportsWeakPtr<RawInputDataFetcher>, | |
61 public base::MessageLoop::DestructionObserver { | |
62 public: | |
63 explicit RawInputDataFetcher(); | |
64 ~RawInputDataFetcher(); | |
65 | |
66 // DestructionObserver overrides. | |
67 virtual void WillDestroyCurrentMessageLoop() OVERRIDE; | |
68 | |
69 bool Available() { return rawinput_available_; } | |
70 void StartMonitor(); | |
71 void StopMonitor(); | |
72 | |
73 std::vector<RawGamepadInfo*> EnumerateDevices(); | |
74 RawGamepadInfo* GetGamepadInfo(HANDLE handle); | |
75 | |
76 private: | |
77 RawGamepadInfo* ParseGamepadInfo(HANDLE hDevice); | |
78 void UpdateGamepad(RAWINPUT* input, RawGamepadInfo* gamepad_info); | |
79 // Handles WM_INPUT messages. | |
80 LRESULT OnInput(HRAWINPUT input_handle); | |
81 // Handles messages received by |window_|. | |
82 bool HandleMessage(UINT message, | |
83 WPARAM wparam, | |
84 LPARAM lparam, | |
85 LRESULT* result); | |
86 RAWINPUTDEVICE* GetRawInputDevices(DWORD flags); | |
87 void ClearControllers(); | |
88 | |
89 // Function types we use from hid.dll. | |
90 typedef NTSTATUS (__stdcall *HidPGetCapsFunc)( | |
91 PHIDP_PREPARSED_DATA PreparsedData, PHIDP_CAPS Capabilities); | |
92 typedef NTSTATUS (__stdcall *HidPGetButtonCapsFunc)( | |
93 HIDP_REPORT_TYPE ReportType, PHIDP_BUTTON_CAPS ButtonCaps, | |
94 PUSHORT ButtonCapsLength, PHIDP_PREPARSED_DATA PreparsedData); | |
95 typedef NTSTATUS (__stdcall *HidPGetValueCapsFunc)( | |
96 HIDP_REPORT_TYPE ReportType, PHIDP_VALUE_CAPS ValueCaps, | |
97 PUSHORT ValueCapsLength, PHIDP_PREPARSED_DATA PreparsedData); | |
98 typedef NTSTATUS (__stdcall *HidPGetUsagesFunc)( | |
99 HIDP_REPORT_TYPE ReportType, USAGE UsagePage, USHORT LinkCollection, | |
100 PUSAGE UsageList, PULONG UsageLength, PHIDP_PREPARSED_DATA PreparsedData, | |
101 PCHAR Report, ULONG ReportLength); | |
102 typedef NTSTATUS (__stdcall *HidPGetUsageValueFunc)( | |
103 HIDP_REPORT_TYPE ReportType, USAGE UsagePage, USHORT LinkCollection, | |
104 USAGE Usage, PULONG UsageValue, PHIDP_PREPARSED_DATA PreparsedData, | |
105 PCHAR Report, ULONG ReportLength); | |
106 typedef NTSTATUS (__stdcall *HidPGetScaledUsageValueFunc)( | |
107 HIDP_REPORT_TYPE ReportType, USAGE UsagePage, USHORT LinkCollection, | |
108 USAGE Usage, PLONG UsageValue, PHIDP_PREPARSED_DATA PreparsedData, | |
109 PCHAR Report, ULONG ReportLength); | |
110 typedef BOOLEAN (__stdcall *HidDGetStringFunc)( | |
111 HANDLE HidDeviceObject, PVOID Buffer, ULONG BufferLength); | |
112 | |
113 // Get functions from dynamically loaded hid.dll. Returns true if loading was | |
114 // successful. | |
115 bool GetHidDllFunctions(); | |
116 | |
117 base::ScopedNativeLibrary hid_dll_; | |
118 scoped_ptr<base::win::MessageWindow> window_; | |
119 bool rawinput_available_; | |
120 bool filter_xinput_; | |
121 bool events_monitored_; | |
122 | |
123 std::map<HANDLE, RawGamepadInfo*> controllers_; | |
124 | |
125 // Function pointers to HID functionality, retrieved in | |
126 // |GetHidDllFunctions|. | |
127 HidPGetCapsFunc hidp_get_caps_; | |
128 HidPGetButtonCapsFunc hidp_get_button_caps_; | |
129 HidPGetValueCapsFunc hidp_get_value_caps_; | |
130 HidPGetUsagesFunc hidp_get_usages_; | |
131 HidPGetUsageValueFunc hidp_get_usage_value_; | |
132 HidPGetScaledUsageValueFunc hidp_get_scaled_usage_value_; | |
133 HidDGetStringFunc hidd_get_product_string_; | |
134 | |
135 DISALLOW_COPY_AND_ASSIGN(RawInputDataFetcher); | |
136 }; | |
137 | |
138 } // namespace content | |
139 | |
140 #endif // CONTENT_BROWSER_GAMEPAD_RAW_INPUT_DATA_FETCHER_WIN_H_ | |
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