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Side by Side Diff: content/browser/gamepad/gamepad_platform_data_fetcher_win.h

Issue 12260011: Support DirectInput gamepads on Windows. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 7 years, 10 months ago
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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 CONTENT_BROWSER_GAMEPAD_GAMEPAD_PLATFORM_DATA_FETCHER_WIN_H_ 5 #ifndef CONTENT_BROWSER_GAMEPAD_GAMEPAD_PLATFORM_DATA_FETCHER_WIN_H_
6 #define CONTENT_BROWSER_GAMEPAD_GAMEPAD_PLATFORM_DATA_FETCHER_WIN_H_ 6 #define CONTENT_BROWSER_GAMEPAD_GAMEPAD_PLATFORM_DATA_FETCHER_WIN_H_
7 7
8 #include "build/build_config.h" 8 #include "build/build_config.h"
9 9
10 #ifndef WIN32_LEAN_AND_MEAN 10 #ifndef WIN32_LEAN_AND_MEAN
11 #define WIN32_LEAN_AND_MEAN 11 #define WIN32_LEAN_AND_MEAN
12 #endif 12 #endif
13 #define DIRECTINPUT_VERSION 0x0800
14 #include <dinput.h>
15 #include <stdlib.h>
16 #include <Unknwn.h>
17 #include <WinDef.h>
13 #include <windows.h> 18 #include <windows.h>
14 #include <XInput.h> 19 #include <XInput.h>
15 20
16 #include "base/basictypes.h" 21 #include "base/basictypes.h"
17 #include "base/compiler_specific.h" 22 #include "base/compiler_specific.h"
18 #include "base/scoped_native_library.h" 23 #include "base/scoped_native_library.h"
19 #include "content/browser/gamepad/gamepad_data_fetcher.h" 24 #include "content/browser/gamepad/gamepad_data_fetcher.h"
25 #include "content/browser/gamepad/gamepad_standard_mappings.h"
26 #include "third_party/WebKit/Source/Platform/chromium/public/WebGamepads.h"
20 27
21 namespace content { 28 namespace content {
22 29
23 class GamepadPlatformDataFetcherWin : public GamepadDataFetcher { 30 class GamepadPlatformDataFetcherWin : public GamepadDataFetcher {
24 public: 31 public:
25 GamepadPlatformDataFetcherWin(); 32 GamepadPlatformDataFetcherWin();
26 virtual ~GamepadPlatformDataFetcherWin(); 33 virtual ~GamepadPlatformDataFetcherWin();
27 virtual void GetGamepadData(WebKit::WebGamepads* pads, 34 virtual void GetGamepadData(WebKit::WebGamepads* pads,
28 bool devices_changed_hint) OVERRIDE; 35 bool devices_changed_hint) OVERRIDE;
29 private: 36 private:
37 // XInput-specific implementation for GetGamepadData.
38 bool GetXInputGamepadData(WebKit::WebGamepads* pads,
39 bool devices_changed_hint);
40 bool GetDirectInputGamepadData(WebKit::WebGamepads* pads,
41 bool devices_changed_hint);
42
30 // The three function types we use from xinput1_3.dll. 43 // The three function types we use from xinput1_3.dll.
31 typedef void (WINAPI *XInputEnableFunc)(BOOL enable); 44 typedef void (WINAPI *XInputEnableFunc)(BOOL enable);
32 typedef DWORD (WINAPI *XInputGetCapabilitiesFunc)( 45 typedef DWORD (WINAPI *XInputGetCapabilitiesFunc)(
33 DWORD dwUserIndex, DWORD dwFlags, XINPUT_CAPABILITIES* pCapabilities); 46 DWORD dwUserIndex, DWORD dwFlags, XINPUT_CAPABILITIES* pCapabilities);
34 typedef DWORD (WINAPI *XInputGetStateFunc)( 47 typedef DWORD (WINAPI *XInputGetStateFunc)(
35 DWORD dwUserIndex, XINPUT_STATE* pState); 48 DWORD dwUserIndex, XINPUT_STATE* pState);
36 49
37 // Get functions from dynamically loaded xinput1_3.dll. We don't use 50 // Get functions from dynamically loaded xinput1_3.dll. We don't use
38 // DELAYLOAD because the import library for Win8 SDK pulls xinput1_4 which 51 // DELAYLOAD because the import library for Win8 SDK pulls xinput1_4 which
39 // isn't redistributable. Returns true if loading was successful. We include 52 // isn't redistributable. Returns true if loading was successful. We include
40 // xinput1_3.dll with Chrome. 53 // xinput1_3.dll with Chrome.
41 bool GetXinputDllFunctions(); 54 bool GetXInputDllFunctions();
55
56 // Scan for connected XInput and DirectInput gamepads.
57 void EnumerateDevices(WebKit::WebGamepads* pads);
58 bool GetXInputPadConnectivity(int i, WebKit::WebGamepad* pad) const;
59
60 void GetXInputPadData(int i, WebKit::WebGamepad* pad);
61 void GetDirectInputPadData(int i, WebKit::WebGamepad* pad);
62
63 int FirstAvailableGamepadId() const;
64 bool HasXInputGamepad(int index) const;
65 bool HasDirectInputGamepad(const GUID &guid) const;
42 66
43 base::ScopedNativeLibrary xinput_dll_; 67 base::ScopedNativeLibrary xinput_dll_;
44 bool xinput_available_; 68 bool xinput_available_;
69 bool directinput_available_;
45 70
46 // Function pointers to XInput functionality, retrieved in 71 // Function pointers to XInput functionality, retrieved in
47 // |GetXinputDllFunctions|. 72 // |GetXinputDllFunctions|.
48 XInputEnableFunc xinput_enable_; 73 XInputEnableFunc xinput_enable_;
49 XInputGetCapabilitiesFunc xinput_get_capabilities_; 74 XInputGetCapabilitiesFunc xinput_get_capabilities_;
50 XInputGetStateFunc xinput_get_state_; 75 XInputGetStateFunc xinput_get_state_;
51 76
77 IDirectInput8* directinput_interface_;
78
79 enum PadConnectionStatus {
80 DISCONNECTED,
81 XINPUT_CONNECTED,
82 DIRECTINPUT_CONNECTED
83 };
84
85 struct PadState {
86 PadConnectionStatus status;
87 int xinput_index; // XInput-only.
88 // Fields below are for DirectInput devices only.
89 GUID guid;
90 IDirectInputDevice8* directinput_gamepad;
91 GamepadStandardMappingFunction mapper;
92 };
93 PadState pad_state_[WebKit::WebGamepads::itemsLengthCap];
94
52 DISALLOW_COPY_AND_ASSIGN(GamepadPlatformDataFetcherWin); 95 DISALLOW_COPY_AND_ASSIGN(GamepadPlatformDataFetcherWin);
53 }; 96 };
54 97
55 } // namespace content 98 } // namespace content
56 99
57 #endif // CONTENT_BROWSER_GAMEPAD_GAMEPAD_PLATFORM_DATA_FETCHER_WIN_H_ 100 #endif // CONTENT_BROWSER_GAMEPAD_GAMEPAD_PLATFORM_DATA_FETCHER_WIN_H_
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