| // Copyright 2014 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_RAW_INPUT_DATA_FETCHER_WIN_H_ |
| #define DEVICE_GAMEPAD_RAW_INPUT_DATA_FETCHER_WIN_H_ |
| |
| #include <Unknwn.h> |
| #include <WinDef.h> |
| #include <hidsdi.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <windows.h> |
| |
| #include <map> |
| #include <memory> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/scoped_native_library.h" |
| #include "base/win/message_window.h" |
| #include "build/build_config.h" |
| #include "device/gamepad/gamepad_data_fetcher.h" |
| #include "device/gamepad/gamepad_standard_mappings.h" |
| #include "third_party/WebKit/public/platform/WebGamepads.h" |
| |
| namespace device { |
| |
| struct RawGamepadAxis { |
| HIDP_VALUE_CAPS caps; |
| float value; |
| bool active; |
| unsigned long bitmask; |
| }; |
| |
| struct RawGamepadInfo { |
| RawGamepadInfo(); |
| ~RawGamepadInfo(); |
| |
| int source_id; |
| int enumeration_id; |
| HANDLE handle; |
| std::unique_ptr<uint8_t[]> ppd_buffer; |
| PHIDP_PREPARSED_DATA preparsed_data; |
| |
| uint32_t report_id; |
| uint32_t vendor_id; |
| uint32_t product_id; |
| |
| wchar_t id[blink::WebGamepad::kIdLengthCap]; |
| |
| uint32_t buttons_length; |
| bool buttons[blink::WebGamepad::kButtonsLengthCap]; |
| |
| uint32_t axes_length; |
| RawGamepadAxis axes[blink::WebGamepad::kAxesLengthCap]; |
| }; |
| |
| class RawInputDataFetcher : public GamepadDataFetcher, |
| public base::SupportsWeakPtr<RawInputDataFetcher> { |
| public: |
| typedef GamepadDataFetcherFactoryImpl<RawInputDataFetcher, |
| GAMEPAD_SOURCE_WIN_RAW> |
| Factory; |
| |
| explicit RawInputDataFetcher(); |
| ~RawInputDataFetcher() override; |
| |
| GamepadSource source() override; |
| |
| void GetGamepadData(bool devices_changed_hint) override; |
| void PauseHint(bool paused) override; |
| |
| private: |
| void OnAddedToProvider() override; |
| |
| void StartMonitor(); |
| void StopMonitor(); |
| void EnumerateDevices(); |
| RawGamepadInfo* ParseGamepadInfo(HANDLE hDevice); |
| void UpdateGamepad(RAWINPUT* input, RawGamepadInfo* gamepad_info); |
| // Handles WM_INPUT messages. |
| LRESULT OnInput(HRAWINPUT input_handle); |
| // Handles messages received by |window_|. |
| bool HandleMessage(UINT message, |
| WPARAM wparam, |
| LPARAM lparam, |
| LRESULT* result); |
| RAWINPUTDEVICE* GetRawInputDevices(DWORD flags); |
| void ClearControllers(); |
| |
| // Function types we use from hid.dll. |
| typedef NTSTATUS(__stdcall* HidPGetCapsFunc)( |
| PHIDP_PREPARSED_DATA PreparsedData, |
| PHIDP_CAPS Capabilities); |
| typedef NTSTATUS(__stdcall* HidPGetButtonCapsFunc)( |
| HIDP_REPORT_TYPE ReportType, |
| PHIDP_BUTTON_CAPS ButtonCaps, |
| PUSHORT ButtonCapsLength, |
| PHIDP_PREPARSED_DATA PreparsedData); |
| typedef NTSTATUS(__stdcall* HidPGetValueCapsFunc)( |
| HIDP_REPORT_TYPE ReportType, |
| PHIDP_VALUE_CAPS ValueCaps, |
| PUSHORT ValueCapsLength, |
| PHIDP_PREPARSED_DATA PreparsedData); |
| typedef NTSTATUS(__stdcall* HidPGetUsagesExFunc)( |
| HIDP_REPORT_TYPE ReportType, |
| USHORT LinkCollection, |
| PUSAGE_AND_PAGE ButtonList, |
| ULONG* UsageLength, |
| PHIDP_PREPARSED_DATA PreparsedData, |
| PCHAR Report, |
| ULONG ReportLength); |
| typedef NTSTATUS(__stdcall* HidPGetUsageValueFunc)( |
| HIDP_REPORT_TYPE ReportType, |
| USAGE UsagePage, |
| USHORT LinkCollection, |
| USAGE Usage, |
| PULONG UsageValue, |
| PHIDP_PREPARSED_DATA PreparsedData, |
| PCHAR Report, |
| ULONG ReportLength); |
| typedef NTSTATUS(__stdcall* HidPGetScaledUsageValueFunc)( |
| HIDP_REPORT_TYPE ReportType, |
| USAGE UsagePage, |
| USHORT LinkCollection, |
| USAGE Usage, |
| PLONG UsageValue, |
| PHIDP_PREPARSED_DATA PreparsedData, |
| PCHAR Report, |
| ULONG ReportLength); |
| typedef BOOLEAN(__stdcall* HidDGetStringFunc)(HANDLE HidDeviceObject, |
| PVOID Buffer, |
| ULONG BufferLength); |
| |
| // Get functions from dynamically loaded hid.dll. Returns true if loading was |
| // successful. |
| bool GetHidDllFunctions(); |
| |
| base::ScopedNativeLibrary hid_dll_; |
| std::unique_ptr<base::win::MessageWindow> window_; |
| bool rawinput_available_; |
| bool filter_xinput_; |
| bool events_monitored_; |
| int last_source_id_; |
| int last_enumeration_id_; |
| |
| typedef std::map<HANDLE, RawGamepadInfo*> ControllerMap; |
| ControllerMap controllers_; |
| |
| // Function pointers to HID functionality, retrieved in |
| // |GetHidDllFunctions|. |
| HidPGetCapsFunc hidp_get_caps_; |
| HidPGetButtonCapsFunc hidp_get_button_caps_; |
| HidPGetValueCapsFunc hidp_get_value_caps_; |
| HidPGetUsagesExFunc hidp_get_usages_ex_; |
| HidPGetUsageValueFunc hidp_get_usage_value_; |
| HidPGetScaledUsageValueFunc hidp_get_scaled_usage_value_; |
| HidDGetStringFunc hidd_get_product_string_; |
| |
| DISALLOW_COPY_AND_ASSIGN(RawInputDataFetcher); |
| }; |
| |
| } // namespace device |
| |
| #endif // DEVICE_GAMEPAD_RAW_INPUT_DATA_FETCHER_WIN_H_ |