| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef DEVICE_GAMEPAD_GAMEPAD_PLATFORM_DATA_FETCHER_WIN_H_ |
| #define DEVICE_GAMEPAD_GAMEPAD_PLATFORM_DATA_FETCHER_WIN_H_ |
| |
| #include <memory> |
| |
| #include "build/build_config.h" |
| |
| #ifndef WIN32_LEAN_AND_MEAN |
| #define WIN32_LEAN_AND_MEAN |
| #endif |
| #include <Unknwn.h> |
| #include <WinDef.h> |
| #include <XInput.h> |
| #include <stdlib.h> |
| #include <windows.h> |
| |
| #include "base/compiler_specific.h" |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/scoped_native_library.h" |
| #include "device/gamepad/gamepad_data_fetcher.h" |
| #include "device/gamepad/gamepad_standard_mappings.h" |
| #include "device/gamepad/raw_input_data_fetcher_win.h" |
| #include "third_party/WebKit/public/platform/WebGamepads.h" |
| |
| namespace device { |
| |
| class GamepadPlatformDataFetcherWin : public GamepadDataFetcher { |
| public: |
| GamepadPlatformDataFetcherWin(); |
| ~GamepadPlatformDataFetcherWin() override; |
| void GetGamepadData(blink::WebGamepads* pads, |
| bool devices_changed_hint) override; |
| void PauseHint(bool paused) override; |
| |
| private: |
| // XInput-specific implementation for GetGamepadData. |
| bool GetXInputGamepadData(blink::WebGamepads* pads, |
| bool devices_changed_hint); |
| |
| // The three function types we use from xinput1_3.dll. |
| typedef void(WINAPI* XInputEnableFunc)(BOOL enable); |
| typedef DWORD(WINAPI* XInputGetCapabilitiesFunc)( |
| DWORD dwUserIndex, |
| DWORD dwFlags, |
| XINPUT_CAPABILITIES* pCapabilities); |
| typedef DWORD(WINAPI* XInputGetStateFunc)(DWORD dwUserIndex, |
| XINPUT_STATE* pState); |
| |
| // Get functions from dynamically loading the xinput dll. |
| // Returns true if loading was successful. |
| bool GetXInputDllFunctions(); |
| |
| // Scan for connected XInput and DirectInput gamepads. |
| void EnumerateDevices(); |
| bool GetXInputPadConnectivity(int i, blink::WebGamepad* pad) const; |
| |
| void GetXInputPadData(int i, blink::WebGamepad* pad); |
| void GetRawInputPadData(int i, blink::WebGamepad* pad); |
| |
| int FirstAvailableGamepadId() const; |
| bool HasXInputGamepad(int index) const; |
| bool HasRawInputGamepad(const HANDLE handle) const; |
| |
| base::ScopedNativeLibrary xinput_dll_; |
| bool xinput_available_; |
| |
| // Function pointers to XInput functionality, retrieved in |
| // |GetXinputDllFunctions|. |
| XInputGetCapabilitiesFunc xinput_get_capabilities_; |
| XInputGetStateFunc xinput_get_state_; |
| |
| enum PadConnectionStatus { |
| DISCONNECTED, |
| XINPUT_CONNECTED, |
| RAWINPUT_CONNECTED |
| }; |
| |
| struct PlatformPadState { |
| PadConnectionStatus status; |
| |
| int xinput_index; // XInput-only |
| HANDLE raw_input_handle; // RawInput-only fields. |
| }; |
| PlatformPadState platform_pad_state_[blink::WebGamepads::itemsLengthCap]; |
| |
| std::unique_ptr<RawInputDataFetcher> raw_input_fetcher_; |
| |
| DISALLOW_COPY_AND_ASSIGN(GamepadPlatformDataFetcherWin); |
| }; |
| |
| } // namespace device |
| |
| #endif // DEVICE_GAMEPAD_GAMEPAD_PLATFORM_DATA_FETCHER_WIN_H_ |