diff options
Diffstat (limited to '3rdparty/SDL2/src/joystick/windows/SDL_xinputjoystick.c')
-rw-r--r-- | 3rdparty/SDL2/src/joystick/windows/SDL_xinputjoystick.c | 425 |
1 files changed, 425 insertions, 0 deletions
diff --git a/3rdparty/SDL2/src/joystick/windows/SDL_xinputjoystick.c b/3rdparty/SDL2/src/joystick/windows/SDL_xinputjoystick.c new file mode 100644 index 00000000000..2f27c47dc23 --- /dev/null +++ b/3rdparty/SDL2/src/joystick/windows/SDL_xinputjoystick.c @@ -0,0 +1,425 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2016 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_windowsjoystick_c.h" +#include "SDL_xinputjoystick_c.h" + +/* + * Internal stuff. + */ +static SDL_bool s_bXInputEnabled = SDL_TRUE; + + +static SDL_bool +SDL_XInputUseOldJoystickMapping() +{ + static int s_XInputUseOldJoystickMapping = -1; + if (s_XInputUseOldJoystickMapping < 0) { + const char *hint = SDL_GetHint(SDL_HINT_XINPUT_USE_OLD_JOYSTICK_MAPPING); + s_XInputUseOldJoystickMapping = (hint && *hint == '1') ? 1 : 0; + } + return (s_XInputUseOldJoystickMapping > 0); +} + +SDL_bool SDL_XINPUT_Enabled(void) +{ + return s_bXInputEnabled; +} + +int +SDL_XINPUT_JoystickInit(void) +{ + const char *env = SDL_GetHint(SDL_HINT_XINPUT_ENABLED); + if (env && !SDL_atoi(env)) { + s_bXInputEnabled = SDL_FALSE; + } + + 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); +} + +static void +AddXInputDevice(const Uint8 userid, BYTE SubType, JoyStick_DeviceData **pContext) +{ + 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 { + pNewJoystick->guid.data[0] = 'x'; + pNewJoystick->guid.data[1] = 'i'; + pNewJoystick->guid.data[2] = 'n'; + pNewJoystick->guid.data[3] = 'p'; + pNewJoystick->guid.data[4] = 'u'; + pNewJoystick->guid.data[5] = 't'; + pNewJoystick->guid.data[6] = SubType; + } + pNewJoystick->SubType = SubType; + pNewJoystick->XInputUserId = userid; + SDL_SYS_AddJoystickDevice(pNewJoystick); +} + +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); + } + } +} + +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->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, (Sint16)pXInputState->Gamepad.sThumbLX); + SDL_PrivateJoystickAxis(joystick, 1, (Sint16)(-SDL_max(-32767, pXInputState->Gamepad.sThumbLY))); + SDL_PrivateJoystickAxis(joystick, 2, (Sint16)(((int)pXInputState->Gamepad.bLeftTrigger * 65535 / 255) - 32768)); + SDL_PrivateJoystickAxis(joystick, 3, (Sint16)pXInputState->Gamepad.sThumbRX); + SDL_PrivateJoystickAxis(joystick, 4, (Sint16)(-SDL_max(-32767, pXInputState->Gamepad.sThumbRY))); + 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); + } + + 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 ); +} + +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) { + joystick->hwdata->send_remove_event = SDL_TRUE; + joystick->hwdata->removed = SDL_TRUE; + 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; + } +} + +void +SDL_XINPUT_JoystickClose(SDL_Joystick * joystick) +{ +} + +void +SDL_XINPUT_JoystickQuit(void) +{ + if (s_bXInputEnabled) { + WIN_UnloadXInputDLL(); + } +} + +SDL_bool +SDL_SYS_IsXInputGamepad_DeviceIndex(int device_index) +{ + JoyStick_DeviceData *device = SYS_Joystick; + int index; + + for (index = device_index; index > 0; index--) + device = device->pNext; + + return (device->SubType == XINPUT_DEVSUBTYPE_GAMEPAD); +} + +#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(); +} + +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: */ |