diff options
Diffstat (limited to 'source/3rd-party/SDL2/src/joystick/windows/SDL_xinputjoystick.c')
| -rw-r--r-- | source/3rd-party/SDL2/src/joystick/windows/SDL_xinputjoystick.c | 560 |
1 files changed, 560 insertions, 0 deletions
diff --git a/source/3rd-party/SDL2/src/joystick/windows/SDL_xinputjoystick.c b/source/3rd-party/SDL2/src/joystick/windows/SDL_xinputjoystick.c new file mode 100644 index 0000000..6bbe475 --- /dev/null +++ b/source/3rd-party/SDL2/src/joystick/windows/SDL_xinputjoystick.c @@ -0,0 +1,560 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org> + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ +#include "../../SDL_internal.h" + +#include "../SDL_sysjoystick.h" + +#if SDL_JOYSTICK_XINPUT + +#include "SDL_assert.h" +#include "SDL_hints.h" +#include "SDL_timer.h" +#include "SDL_windowsjoystick_c.h" +#include "SDL_xinputjoystick_c.h" +#include "../hidapi/SDL_hidapijoystick_c.h" + +/* + * Internal stuff. + */ +static SDL_bool s_bXInputEnabled = SDL_TRUE; +static char *s_arrXInputDevicePath[XUSER_MAX_COUNT]; + + +static SDL_bool +SDL_XInputUseOldJoystickMapping() +{ +#ifdef __WINRT__ + /* TODO: remove this __WINRT__ block, but only after integrating with UWP/WinRT's HID API */ + /* FIXME: Why are Win8/10 different here? -flibit */ + return (NTDDI_VERSION < NTDDI_WIN10); +#else + static int s_XInputUseOldJoystickMapping = -1; + if (s_XInputUseOldJoystickMapping < 0) { + s_XInputUseOldJoystickMapping = SDL_GetHintBoolean(SDL_HINT_XINPUT_USE_OLD_JOYSTICK_MAPPING, SDL_FALSE); + } + return (s_XInputUseOldJoystickMapping > 0); +#endif +} + +SDL_bool SDL_XINPUT_Enabled(void) +{ + return s_bXInputEnabled; +} + +int +SDL_XINPUT_JoystickInit(void) +{ + s_bXInputEnabled = SDL_GetHintBoolean(SDL_HINT_XINPUT_ENABLED, SDL_TRUE); + + if (s_bXInputEnabled && WIN_LoadXInputDLL() < 0) { + s_bXInputEnabled = SDL_FALSE; /* oh well. */ + } + return 0; +} + +static char * +GetXInputName(const Uint8 userid, BYTE SubType) +{ + char name[32]; + + if (SDL_XInputUseOldJoystickMapping()) { + SDL_snprintf(name, sizeof(name), "X360 Controller #%u", 1 + userid); + } else { + switch (SubType) { + case XINPUT_DEVSUBTYPE_GAMEPAD: + SDL_snprintf(name, sizeof(name), "XInput Controller #%u", 1 + userid); + break; + case XINPUT_DEVSUBTYPE_WHEEL: + SDL_snprintf(name, sizeof(name), "XInput Wheel #%u", 1 + userid); + break; + case XINPUT_DEVSUBTYPE_ARCADE_STICK: + SDL_snprintf(name, sizeof(name), "XInput ArcadeStick #%u", 1 + userid); + break; + case XINPUT_DEVSUBTYPE_FLIGHT_STICK: + SDL_snprintf(name, sizeof(name), "XInput FlightStick #%u", 1 + userid); + break; + case XINPUT_DEVSUBTYPE_DANCE_PAD: + SDL_snprintf(name, sizeof(name), "XInput DancePad #%u", 1 + userid); + break; + case XINPUT_DEVSUBTYPE_GUITAR: + case XINPUT_DEVSUBTYPE_GUITAR_ALTERNATE: + case XINPUT_DEVSUBTYPE_GUITAR_BASS: + SDL_snprintf(name, sizeof(name), "XInput Guitar #%u", 1 + userid); + break; + case XINPUT_DEVSUBTYPE_DRUM_KIT: + SDL_snprintf(name, sizeof(name), "XInput DrumKit #%u", 1 + userid); + break; + case XINPUT_DEVSUBTYPE_ARCADE_PAD: + SDL_snprintf(name, sizeof(name), "XInput ArcadePad #%u", 1 + userid); + break; + default: + SDL_snprintf(name, sizeof(name), "XInput Device #%u", 1 + userid); + break; + } + } + return SDL_strdup(name); +} + +/* We can't really tell what device is being used for XInput, but we can guess + and we'll be correct for the case where only one device is connected. + */ +static void +GuessXInputDevice(Uint8 userid, Uint16 *pVID, Uint16 *pPID, Uint16 *pVersion) +{ +#ifndef __WINRT__ /* TODO: remove this ifndef __WINRT__ block, but only after integrating with UWP/WinRT's HID API */ + + PRAWINPUTDEVICELIST devices = NULL; + UINT i, j, device_count = 0; + + if ((GetRawInputDeviceList(NULL, &device_count, sizeof(RAWINPUTDEVICELIST)) == -1) || (!device_count)) { + return; /* oh well. */ + } + + devices = (PRAWINPUTDEVICELIST)SDL_malloc(sizeof(RAWINPUTDEVICELIST) * device_count); + if (devices == NULL) { + return; + } + + if (GetRawInputDeviceList(devices, &device_count, sizeof(RAWINPUTDEVICELIST)) == -1) { + SDL_free(devices); + return; /* oh well. */ + } + + for (i = 0; i < device_count; i++) { + RID_DEVICE_INFO rdi; + char devName[128]; + UINT rdiSize = sizeof(rdi); + UINT nameSize = SDL_arraysize(devName); + + rdi.cbSize = sizeof(rdi); + if ((devices[i].dwType == RIM_TYPEHID) && + (GetRawInputDeviceInfoA(devices[i].hDevice, RIDI_DEVICEINFO, &rdi, &rdiSize) != ((UINT)-1)) && + (GetRawInputDeviceInfoA(devices[i].hDevice, RIDI_DEVICENAME, devName, &nameSize) != ((UINT)-1)) && + (SDL_strstr(devName, "IG_") != NULL)) { + SDL_bool found = SDL_FALSE; + for (j = 0; j < SDL_arraysize(s_arrXInputDevicePath); ++j) { + if (j == userid) { + continue; + } + if (!s_arrXInputDevicePath[j]) { + continue; + } + if (SDL_strcmp(devName, s_arrXInputDevicePath[j]) == 0) { + found = SDL_TRUE; + break; + } + } + if (found) { + /* We already have this device in our XInput device list */ + continue; + } + + /* We don't actually know if this is the right device for this + * userid, but we'll record it so we'll at least be consistent + * when the raw device list changes. + */ + *pVID = (Uint16)rdi.hid.dwVendorId; + *pPID = (Uint16)rdi.hid.dwProductId; + *pVersion = (Uint16)rdi.hid.dwVersionNumber; + if (s_arrXInputDevicePath[userid]) { + SDL_free(s_arrXInputDevicePath[userid]); + } + s_arrXInputDevicePath[userid] = SDL_strdup(devName); + break; + } + } + SDL_free(devices); +#endif /* ifndef __WINRT__ */ +} + +static void +AddXInputDevice(Uint8 userid, BYTE SubType, JoyStick_DeviceData **pContext) +{ + Uint16 vendor = 0; + Uint16 product = 0; + Uint16 version = 0; + JoyStick_DeviceData *pPrevJoystick = NULL; + JoyStick_DeviceData *pNewJoystick = *pContext; + + if (SDL_XInputUseOldJoystickMapping() && SubType != XINPUT_DEVSUBTYPE_GAMEPAD) + return; + + if (SubType == XINPUT_DEVSUBTYPE_UNKNOWN) + return; + + while (pNewJoystick) { + if (pNewJoystick->bXInputDevice && (pNewJoystick->XInputUserId == userid) && (pNewJoystick->SubType == SubType)) { + /* if we are replacing the front of the list then update it */ + if (pNewJoystick == *pContext) { + *pContext = pNewJoystick->pNext; + } else if (pPrevJoystick) { + pPrevJoystick->pNext = pNewJoystick->pNext; + } + + pNewJoystick->pNext = SYS_Joystick; + SYS_Joystick = pNewJoystick; + return; /* already in the list. */ + } + + pPrevJoystick = pNewJoystick; + pNewJoystick = pNewJoystick->pNext; + } + + pNewJoystick = (JoyStick_DeviceData *)SDL_malloc(sizeof(JoyStick_DeviceData)); + if (!pNewJoystick) { + return; /* better luck next time? */ + } + SDL_zerop(pNewJoystick); + + pNewJoystick->joystickname = GetXInputName(userid, SubType); + if (!pNewJoystick->joystickname) { + SDL_free(pNewJoystick); + return; /* better luck next time? */ + } + + pNewJoystick->bXInputDevice = SDL_TRUE; + if (SDL_XInputUseOldJoystickMapping()) { + SDL_zero(pNewJoystick->guid); + } else { + Uint16 *guid16 = (Uint16 *)pNewJoystick->guid.data; + + GuessXInputDevice(userid, &vendor, &product, &version); + + *guid16++ = SDL_SwapLE16(SDL_HARDWARE_BUS_USB); + *guid16++ = 0; + *guid16++ = SDL_SwapLE16(vendor); + *guid16++ = 0; + *guid16++ = SDL_SwapLE16(product); + *guid16++ = 0; + *guid16++ = SDL_SwapLE16(version); + *guid16++ = 0; + + /* Note that this is an XInput device and what subtype it is */ + pNewJoystick->guid.data[14] = 'x'; + pNewJoystick->guid.data[15] = SubType; + } + pNewJoystick->SubType = SubType; + pNewJoystick->XInputUserId = userid; + + if (SDL_ShouldIgnoreJoystick(pNewJoystick->joystickname, pNewJoystick->guid)) { + SDL_free(pNewJoystick); + return; + } + +#ifdef SDL_JOYSTICK_HIDAPI + if (HIDAPI_IsDevicePresent(vendor, product, version)) { + /* The HIDAPI driver is taking care of this device */ + SDL_free(pNewJoystick); + return; + } +#endif + + WINDOWS_AddJoystickDevice(pNewJoystick); +} + +static void +DelXInputDevice(Uint8 userid) +{ + if (s_arrXInputDevicePath[userid]) { + SDL_free(s_arrXInputDevicePath[userid]); + s_arrXInputDevicePath[userid] = NULL; + } +} + +void +SDL_XINPUT_JoystickDetect(JoyStick_DeviceData **pContext) +{ + int iuserid; + + if (!s_bXInputEnabled) { + return; + } + + /* iterate in reverse, so these are in the final list in ascending numeric order. */ + for (iuserid = XUSER_MAX_COUNT - 1; iuserid >= 0; iuserid--) { + const Uint8 userid = (Uint8)iuserid; + XINPUT_CAPABILITIES capabilities; + if (XINPUTGETCAPABILITIES(userid, XINPUT_FLAG_GAMEPAD, &capabilities) == ERROR_SUCCESS) { + AddXInputDevice(userid, capabilities.SubType, pContext); + } else { + DelXInputDevice(userid); + } + } +} + +int +SDL_XINPUT_JoystickOpen(SDL_Joystick * joystick, JoyStick_DeviceData *joystickdevice) +{ + const Uint8 userId = joystickdevice->XInputUserId; + XINPUT_CAPABILITIES capabilities; + XINPUT_VIBRATION state; + + SDL_assert(s_bXInputEnabled); + SDL_assert(XINPUTGETCAPABILITIES); + SDL_assert(XINPUTSETSTATE); + SDL_assert(userId < XUSER_MAX_COUNT); + + joystick->player_index = userId; + + joystick->hwdata->bXInputDevice = SDL_TRUE; + + if (XINPUTGETCAPABILITIES(userId, XINPUT_FLAG_GAMEPAD, &capabilities) != ERROR_SUCCESS) { + SDL_free(joystick->hwdata); + joystick->hwdata = NULL; + return SDL_SetError("Failed to obtain XInput device capabilities. Device disconnected?"); + } + SDL_zero(state); + joystick->hwdata->bXInputHaptic = (XINPUTSETSTATE(userId, &state) == ERROR_SUCCESS); + joystick->hwdata->userid = userId; + + /* The XInput API has a hard coded button/axis mapping, so we just match it */ + if (SDL_XInputUseOldJoystickMapping()) { + joystick->naxes = 6; + joystick->nbuttons = 15; + } else { + joystick->naxes = 6; + joystick->nbuttons = 11; + joystick->nhats = 1; + } + return 0; +} + +static void +UpdateXInputJoystickBatteryInformation(SDL_Joystick * joystick, XINPUT_BATTERY_INFORMATION_EX *pBatteryInformation) +{ + if (pBatteryInformation->BatteryType != BATTERY_TYPE_UNKNOWN) { + SDL_JoystickPowerLevel ePowerLevel = SDL_JOYSTICK_POWER_UNKNOWN; + if (pBatteryInformation->BatteryType == BATTERY_TYPE_WIRED) { + ePowerLevel = SDL_JOYSTICK_POWER_WIRED; + } else { + switch (pBatteryInformation->BatteryLevel) { + case BATTERY_LEVEL_EMPTY: + ePowerLevel = SDL_JOYSTICK_POWER_EMPTY; + break; + case BATTERY_LEVEL_LOW: + ePowerLevel = SDL_JOYSTICK_POWER_LOW; + break; + case BATTERY_LEVEL_MEDIUM: + ePowerLevel = SDL_JOYSTICK_POWER_MEDIUM; + break; + default: + case BATTERY_LEVEL_FULL: + ePowerLevel = SDL_JOYSTICK_POWER_FULL; + break; + } + } + + SDL_PrivateJoystickBatteryLevel(joystick, ePowerLevel); + } +} + +static void +UpdateXInputJoystickState_OLD(SDL_Joystick * joystick, XINPUT_STATE_EX *pXInputState, XINPUT_BATTERY_INFORMATION_EX *pBatteryInformation) +{ + static WORD s_XInputButtons[] = { + XINPUT_GAMEPAD_DPAD_UP, XINPUT_GAMEPAD_DPAD_DOWN, XINPUT_GAMEPAD_DPAD_LEFT, XINPUT_GAMEPAD_DPAD_RIGHT, + XINPUT_GAMEPAD_START, XINPUT_GAMEPAD_BACK, XINPUT_GAMEPAD_LEFT_THUMB, XINPUT_GAMEPAD_RIGHT_THUMB, + XINPUT_GAMEPAD_LEFT_SHOULDER, XINPUT_GAMEPAD_RIGHT_SHOULDER, + XINPUT_GAMEPAD_A, XINPUT_GAMEPAD_B, XINPUT_GAMEPAD_X, XINPUT_GAMEPAD_Y, + XINPUT_GAMEPAD_GUIDE + }; + WORD wButtons = pXInputState->Gamepad.wButtons; + Uint8 button; + + SDL_PrivateJoystickAxis(joystick, 0, (Sint16)pXInputState->Gamepad.sThumbLX); + SDL_PrivateJoystickAxis(joystick, 1, (Sint16)(-SDL_max(-32767, pXInputState->Gamepad.sThumbLY))); + SDL_PrivateJoystickAxis(joystick, 2, (Sint16)pXInputState->Gamepad.sThumbRX); + SDL_PrivateJoystickAxis(joystick, 3, (Sint16)(-SDL_max(-32767, pXInputState->Gamepad.sThumbRY))); + SDL_PrivateJoystickAxis(joystick, 4, (Sint16)(((int)pXInputState->Gamepad.bLeftTrigger * 65535 / 255) - 32768)); + SDL_PrivateJoystickAxis(joystick, 5, (Sint16)(((int)pXInputState->Gamepad.bRightTrigger * 65535 / 255) - 32768)); + + for (button = 0; button < SDL_arraysize(s_XInputButtons); ++button) { + SDL_PrivateJoystickButton(joystick, button, (wButtons & s_XInputButtons[button]) ? SDL_PRESSED : SDL_RELEASED); + } + + UpdateXInputJoystickBatteryInformation(joystick, pBatteryInformation); +} + +static void +UpdateXInputJoystickState(SDL_Joystick * joystick, XINPUT_STATE_EX *pXInputState, XINPUT_BATTERY_INFORMATION_EX *pBatteryInformation) +{ + static WORD s_XInputButtons[] = { + XINPUT_GAMEPAD_A, XINPUT_GAMEPAD_B, XINPUT_GAMEPAD_X, XINPUT_GAMEPAD_Y, + XINPUT_GAMEPAD_LEFT_SHOULDER, XINPUT_GAMEPAD_RIGHT_SHOULDER, XINPUT_GAMEPAD_BACK, XINPUT_GAMEPAD_START, + XINPUT_GAMEPAD_LEFT_THUMB, XINPUT_GAMEPAD_RIGHT_THUMB, + XINPUT_GAMEPAD_GUIDE + }; + WORD wButtons = pXInputState->Gamepad.wButtons; + Uint8 button; + Uint8 hat = SDL_HAT_CENTERED; + + SDL_PrivateJoystickAxis(joystick, 0, pXInputState->Gamepad.sThumbLX); + SDL_PrivateJoystickAxis(joystick, 1, ~pXInputState->Gamepad.sThumbLY); + SDL_PrivateJoystickAxis(joystick, 2, ((int)pXInputState->Gamepad.bLeftTrigger * 257) - 32768); + SDL_PrivateJoystickAxis(joystick, 3, pXInputState->Gamepad.sThumbRX); + SDL_PrivateJoystickAxis(joystick, 4, ~pXInputState->Gamepad.sThumbRY); + SDL_PrivateJoystickAxis(joystick, 5, ((int)pXInputState->Gamepad.bRightTrigger * 257) - 32768); + + for (button = 0; button < SDL_arraysize(s_XInputButtons); ++button) { + SDL_PrivateJoystickButton(joystick, button, (wButtons & s_XInputButtons[button]) ? SDL_PRESSED : SDL_RELEASED); + } + + if (wButtons & XINPUT_GAMEPAD_DPAD_UP) { + hat |= SDL_HAT_UP; + } + if (wButtons & XINPUT_GAMEPAD_DPAD_DOWN) { + hat |= SDL_HAT_DOWN; + } + if (wButtons & XINPUT_GAMEPAD_DPAD_LEFT) { + hat |= SDL_HAT_LEFT; + } + if (wButtons & XINPUT_GAMEPAD_DPAD_RIGHT) { + hat |= SDL_HAT_RIGHT; + } + SDL_PrivateJoystickHat(joystick, 0, hat); + + UpdateXInputJoystickBatteryInformation(joystick, pBatteryInformation); +} + +int +SDL_XINPUT_JoystickRumble(SDL_Joystick * joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble, Uint32 duration_ms) +{ + XINPUT_VIBRATION XVibration; + + if (!XINPUTSETSTATE) { + return SDL_Unsupported(); + } + + XVibration.wLeftMotorSpeed = low_frequency_rumble; + XVibration.wRightMotorSpeed = high_frequency_rumble; + if (XINPUTSETSTATE(joystick->hwdata->userid, &XVibration) != ERROR_SUCCESS) { + return SDL_SetError("XInputSetState() failed"); + } + + if ((low_frequency_rumble || high_frequency_rumble) && duration_ms) { + joystick->hwdata->rumble_expiration = SDL_GetTicks() + duration_ms; + } else { + joystick->hwdata->rumble_expiration = 0; + } + return 0; +} + +void +SDL_XINPUT_JoystickUpdate(SDL_Joystick * joystick) +{ + HRESULT result; + XINPUT_STATE_EX XInputState; + XINPUT_BATTERY_INFORMATION_EX XBatteryInformation; + + if (!XINPUTGETSTATE) + return; + + result = XINPUTGETSTATE(joystick->hwdata->userid, &XInputState); + if (result == ERROR_DEVICE_NOT_CONNECTED) { + return; + } + + SDL_zero(XBatteryInformation); + if (XINPUTGETBATTERYINFORMATION) { + result = XINPUTGETBATTERYINFORMATION(joystick->hwdata->userid, BATTERY_DEVTYPE_GAMEPAD, &XBatteryInformation); + } + + /* only fire events if the data changed from last time */ + if (XInputState.dwPacketNumber && XInputState.dwPacketNumber != joystick->hwdata->dwPacketNumber) { + if (SDL_XInputUseOldJoystickMapping()) { + UpdateXInputJoystickState_OLD(joystick, &XInputState, &XBatteryInformation); + } else { + UpdateXInputJoystickState(joystick, &XInputState, &XBatteryInformation); + } + joystick->hwdata->dwPacketNumber = XInputState.dwPacketNumber; + } + + if (joystick->hwdata->rumble_expiration) { + Uint32 now = SDL_GetTicks(); + if (SDL_TICKS_PASSED(now, joystick->hwdata->rumble_expiration)) { + SDL_XINPUT_JoystickRumble(joystick, 0, 0, 0); + } + } +} + +void +SDL_XINPUT_JoystickClose(SDL_Joystick * joystick) +{ +} + +void +SDL_XINPUT_JoystickQuit(void) +{ + if (s_bXInputEnabled) { + WIN_UnloadXInputDLL(); + } +} + +#else /* !SDL_JOYSTICK_XINPUT */ + +typedef struct JoyStick_DeviceData JoyStick_DeviceData; + +SDL_bool SDL_XINPUT_Enabled(void) +{ + return SDL_FALSE; +} + +int +SDL_XINPUT_JoystickInit(void) +{ + return 0; +} + +void +SDL_XINPUT_JoystickDetect(JoyStick_DeviceData **pContext) +{ +} + +int +SDL_XINPUT_JoystickOpen(SDL_Joystick * joystick, JoyStick_DeviceData *joystickdevice) +{ + return SDL_Unsupported(); +} + +int +SDL_XINPUT_JoystickRumble(SDL_Joystick * joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble, Uint32 duration_ms) +{ + return SDL_Unsupported(); +} + +void +SDL_XINPUT_JoystickUpdate(SDL_Joystick * joystick) +{ +} + +void +SDL_XINPUT_JoystickClose(SDL_Joystick * joystick) +{ +} + +void +SDL_XINPUT_JoystickQuit(void) +{ +} + +#endif /* SDL_JOYSTICK_XINPUT */ + +/* vi: set ts=4 sw=4 expandtab: */ |