/*************************************************************************/ /* joypad_windows.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #include "joypad_windows.h" #include <oleauto.h> #include <wbemidl.h> #if defined(__GNUC__) // Workaround GCC warning from -Wcast-function-type. #define GetProcAddress (void *)GetProcAddress #endif DWORD WINAPI _xinput_get_state(DWORD dwUserIndex, XINPUT_STATE *pState) { return ERROR_DEVICE_NOT_CONNECTED; } DWORD WINAPI _xinput_set_state(DWORD dwUserIndex, XINPUT_VIBRATION *pVibration) { return ERROR_DEVICE_NOT_CONNECTED; } JoypadWindows::JoypadWindows() { } JoypadWindows::JoypadWindows(HWND *hwnd) { input = Input::get_singleton(); hWnd = hwnd; joypad_count = 0; dinput = nullptr; xinput_dll = nullptr; xinput_get_state = nullptr; xinput_set_state = nullptr; load_xinput(); for (int i = 0; i < JOYPADS_MAX; i++) { attached_joypads[i] = false; } HRESULT result = DirectInput8Create(GetModuleHandle(nullptr), DIRECTINPUT_VERSION, IID_IDirectInput8, (void **)&dinput, nullptr); if (result == DI_OK) { probe_joypads(); } else { ERR_PRINT("Couldn't initialize DirectInput. Error: " + itos(result)); if (result == DIERR_OUTOFMEMORY) { ERR_PRINT("The Windows DirectInput subsystem could not allocate sufficient memory."); ERR_PRINT("Rebooting your PC may solve this issue."); } // Ensure dinput is still a nullptr. dinput = nullptr; } } JoypadWindows::~JoypadWindows() { close_joypad(); if (dinput) { dinput->Release(); } unload_xinput(); } bool JoypadWindows::have_device(const GUID &p_guid) { for (int i = 0; i < JOYPADS_MAX; i++) { if (d_joypads[i].guid == p_guid) { d_joypads[i].confirmed = true; return true; } } return false; } // adapted from SDL2, works a lot better than the MSDN version bool JoypadWindows::is_xinput_device(const GUID *p_guid) { static GUID IID_ValveStreamingGamepad = { MAKELONG(0x28DE, 0x11FF), 0x28DE, 0x0000, { 0x00, 0x00, 0x50, 0x49, 0x44, 0x56, 0x49, 0x44 } }; static GUID IID_X360WiredGamepad = { MAKELONG(0x045E, 0x02A1), 0x0000, 0x0000, { 0x00, 0x00, 0x50, 0x49, 0x44, 0x56, 0x49, 0x44 } }; static GUID IID_X360WirelessGamepad = { MAKELONG(0x045E, 0x028E), 0x0000, 0x0000, { 0x00, 0x00, 0x50, 0x49, 0x44, 0x56, 0x49, 0x44 } }; if (memcmp(p_guid, &IID_ValveStreamingGamepad, sizeof(*p_guid)) == 0 || memcmp(p_guid, &IID_X360WiredGamepad, sizeof(*p_guid)) == 0 || memcmp(p_guid, &IID_X360WirelessGamepad, sizeof(*p_guid)) == 0) return true; PRAWINPUTDEVICELIST dev_list = nullptr; unsigned int dev_list_count = 0; if (GetRawInputDeviceList(nullptr, &dev_list_count, sizeof(RAWINPUTDEVICELIST)) == (UINT)-1) { return false; } dev_list = (PRAWINPUTDEVICELIST)memalloc(sizeof(RAWINPUTDEVICELIST) * dev_list_count); ERR_FAIL_NULL_V_MSG(dev_list, false, "Out of memory."); if (GetRawInputDeviceList(dev_list, &dev_list_count, sizeof(RAWINPUTDEVICELIST)) == (UINT)-1) { memfree(dev_list); return false; } for (unsigned int i = 0; i < dev_list_count; i++) { RID_DEVICE_INFO rdi; char dev_name[128]; UINT rdiSize = sizeof(rdi); UINT nameSize = sizeof(dev_name); rdi.cbSize = rdiSize; if ((dev_list[i].dwType == RIM_TYPEHID) && (GetRawInputDeviceInfoA(dev_list[i].hDevice, RIDI_DEVICEINFO, &rdi, &rdiSize) != (UINT)-1) && (MAKELONG(rdi.hid.dwVendorId, rdi.hid.dwProductId) == (LONG)p_guid->Data1) && (GetRawInputDeviceInfoA(dev_list[i].hDevice, RIDI_DEVICENAME, &dev_name, &nameSize) != (UINT)-1) && (strstr(dev_name, "IG_") != nullptr)) { memfree(dev_list); return true; } } memfree(dev_list); return false; } bool JoypadWindows::setup_dinput_joypad(const DIDEVICEINSTANCE *instance) { ERR_FAIL_NULL_V_MSG(dinput, false, "DirectInput not initialized. Rebooting your PC may solve this issue."); HRESULT hr; int num = input->get_unused_joy_id(); if (have_device(instance->guidInstance) || num == -1) { return false; } d_joypads[num] = dinput_gamepad(); dinput_gamepad *joy = &d_joypads[num]; const DWORD devtype = (instance->dwDevType & 0xFF); if ((devtype != DI8DEVTYPE_JOYSTICK) && (devtype != DI8DEVTYPE_GAMEPAD) && (devtype != DI8DEVTYPE_1STPERSON) && (devtype != DI8DEVTYPE_DRIVING)) { return false; } hr = dinput->CreateDevice(instance->guidInstance, &joy->di_joy, nullptr); if (FAILED(hr)) { return false; } const GUID &guid = instance->guidProduct; char uid[128]; ERR_FAIL_COND_V_MSG(memcmp(&guid.Data4[2], "PIDVID", 6), false, "DirectInput device not recognised."); WORD type = BSWAP16(0x03); WORD vendor = BSWAP16(LOWORD(guid.Data1)); WORD product = BSWAP16(HIWORD(guid.Data1)); WORD version = 0; sprintf_s(uid, "%04x%04x%04x%04x%04x%04x%04x%04x", type, 0, vendor, 0, product, 0, version, 0); id_to_change = num; slider_count = 0; joy->di_joy->SetDataFormat(&c_dfDIJoystick2); joy->di_joy->SetCooperativeLevel(*hWnd, DISCL_FOREGROUND); joy->di_joy->EnumObjects(objectsCallback, this, 0); joy->joy_axis.sort(); joy->guid = instance->guidInstance; input->joy_connection_changed(num, true, instance->tszProductName, uid); joy->attached = true; joy->id = num; attached_joypads[num] = true; joy->confirmed = true; joypad_count++; return true; } void JoypadWindows::setup_joypad_object(const DIDEVICEOBJECTINSTANCE *ob, int p_joy_id) { if (ob->dwType & DIDFT_AXIS) { HRESULT res; DIPROPRANGE prop_range; DIPROPDWORD dilong; LONG ofs; if (ob->guidType == GUID_XAxis) { ofs = DIJOFS_X; } else if (ob->guidType == GUID_YAxis) { ofs = DIJOFS_Y; } else if (ob->guidType == GUID_ZAxis) { ofs = DIJOFS_Z; } else if (ob->guidType == GUID_RxAxis) { ofs = DIJOFS_RX; } else if (ob->guidType == GUID_RyAxis) { ofs = DIJOFS_RY; } else if (ob->guidType == GUID_RzAxis) { ofs = DIJOFS_RZ; } else if (ob->guidType == GUID_Slider) { if (slider_count < 2) { ofs = DIJOFS_SLIDER(slider_count); slider_count++; } else { return; } } else { return; } prop_range.diph.dwSize = sizeof(DIPROPRANGE); prop_range.diph.dwHeaderSize = sizeof(DIPROPHEADER); prop_range.diph.dwObj = ob->dwType; prop_range.diph.dwHow = DIPH_BYID; prop_range.lMin = -MAX_JOY_AXIS; prop_range.lMax = +MAX_JOY_AXIS; dinput_gamepad &joy = d_joypads[p_joy_id]; res = IDirectInputDevice8_SetProperty(joy.di_joy, DIPROP_RANGE, &prop_range.diph); if (FAILED(res)) { return; } dilong.diph.dwSize = sizeof(dilong); dilong.diph.dwHeaderSize = sizeof(dilong.diph); dilong.diph.dwObj = ob->dwType; dilong.diph.dwHow = DIPH_BYID; dilong.dwData = 0; res = IDirectInputDevice8_SetProperty(joy.di_joy, DIPROP_DEADZONE, &dilong.diph); if (FAILED(res)) { return; } joy.joy_axis.push_back(ofs); } } BOOL CALLBACK JoypadWindows::enumCallback(const DIDEVICEINSTANCE *p_instance, void *p_context) { JoypadWindows *self = static_cast<JoypadWindows *>(p_context); if (self->is_xinput_device(&p_instance->guidProduct)) { return DIENUM_CONTINUE; } self->setup_dinput_joypad(p_instance); return DIENUM_CONTINUE; } BOOL CALLBACK JoypadWindows::objectsCallback(const DIDEVICEOBJECTINSTANCE *p_instance, void *p_context) { JoypadWindows *self = static_cast<JoypadWindows *>(p_context); self->setup_joypad_object(p_instance, self->id_to_change); return DIENUM_CONTINUE; } void JoypadWindows::close_joypad(int id) { if (id == -1) { for (int i = 0; i < JOYPADS_MAX; i++) { close_joypad(i); } return; } if (!d_joypads[id].attached) { return; } d_joypads[id].di_joy->Unacquire(); d_joypads[id].di_joy->Release(); d_joypads[id].attached = false; attached_joypads[d_joypads[id].id] = false; d_joypads[id].guid.Data1 = d_joypads[id].guid.Data2 = d_joypads[id].guid.Data3 = 0; input->joy_connection_changed(d_joypads[id].id, false, ""); joypad_count--; } void JoypadWindows::probe_joypads() { ERR_FAIL_NULL_MSG(dinput, "DirectInput not initialized. Rebooting your PC may solve this issue."); DWORD dwResult; for (DWORD i = 0; i < XUSER_MAX_COUNT; i++) { ZeroMemory(&x_joypads[i].state, sizeof(XINPUT_STATE)); dwResult = xinput_get_state(i, &x_joypads[i].state); if (dwResult == ERROR_SUCCESS) { int id = input->get_unused_joy_id(); if (id != -1 && !x_joypads[i].attached) { x_joypads[i].attached = true; x_joypads[i].id = id; x_joypads[i].ff_timestamp = 0; x_joypads[i].ff_end_timestamp = 0; x_joypads[i].vibrating = false; attached_joypads[id] = true; input->joy_connection_changed(id, true, "XInput Gamepad", "__XINPUT_DEVICE__"); } } else if (x_joypads[i].attached) { x_joypads[i].attached = false; attached_joypads[x_joypads[i].id] = false; input->joy_connection_changed(x_joypads[i].id, false, ""); } } for (int i = 0; i < joypad_count; i++) { d_joypads[i].confirmed = false; } dinput->EnumDevices(DI8DEVCLASS_GAMECTRL, enumCallback, this, DIEDFL_ATTACHEDONLY); for (int i = 0; i < joypad_count; i++) { if (!d_joypads[i].confirmed) { close_joypad(i); } } } void JoypadWindows::process_joypads() { HRESULT hr; for (int i = 0; i < XUSER_MAX_COUNT; i++) { xinput_gamepad &joy = x_joypads[i]; if (!joy.attached) { continue; } ZeroMemory(&joy.state, sizeof(XINPUT_STATE)); xinput_get_state(i, &joy.state); if (joy.state.dwPacketNumber != joy.last_packet) { int button_mask = XINPUT_GAMEPAD_DPAD_UP; for (int j = 0; j <= 16; j++) { input->joy_button(joy.id, (JoyButton)j, joy.state.Gamepad.wButtons & button_mask); button_mask = button_mask * 2; } input->joy_axis(joy.id, JoyAxis::LEFT_X, axis_correct(joy.state.Gamepad.sThumbLX, true)); input->joy_axis(joy.id, JoyAxis::LEFT_Y, axis_correct(joy.state.Gamepad.sThumbLY, true, false, true)); input->joy_axis(joy.id, JoyAxis::RIGHT_X, axis_correct(joy.state.Gamepad.sThumbRX, true)); input->joy_axis(joy.id, JoyAxis::RIGHT_Y, axis_correct(joy.state.Gamepad.sThumbRY, true, false, true)); input->joy_axis(joy.id, JoyAxis::TRIGGER_LEFT, axis_correct(joy.state.Gamepad.bLeftTrigger, true, true)); input->joy_axis(joy.id, JoyAxis::TRIGGER_RIGHT, axis_correct(joy.state.Gamepad.bRightTrigger, true, true)); joy.last_packet = joy.state.dwPacketNumber; } uint64_t timestamp = input->get_joy_vibration_timestamp(joy.id); if (timestamp > joy.ff_timestamp) { Vector2 strength = input->get_joy_vibration_strength(joy.id); float duration = input->get_joy_vibration_duration(joy.id); if (strength.x == 0 && strength.y == 0) { joypad_vibration_stop_xinput(i, timestamp); } else { joypad_vibration_start_xinput(i, strength.x, strength.y, duration, timestamp); } } else if (joy.vibrating && joy.ff_end_timestamp != 0) { uint64_t current_time = OS::get_singleton()->get_ticks_usec(); if (current_time >= joy.ff_end_timestamp) { joypad_vibration_stop_xinput(i, current_time); } } } for (int i = 0; i < JOYPADS_MAX; i++) { dinput_gamepad *joy = &d_joypads[i]; if (!joy->attached) { continue; } DIJOYSTATE2 js; hr = joy->di_joy->Poll(); if (hr == DIERR_INPUTLOST || hr == DIERR_NOTACQUIRED) { IDirectInputDevice8_Acquire(joy->di_joy); joy->di_joy->Poll(); } hr = joy->di_joy->GetDeviceState(sizeof(DIJOYSTATE2), &js); if (FAILED(hr)) { continue; } post_hat(joy->id, js.rgdwPOV[0]); for (int j = 0; j < 128; j++) { if (js.rgbButtons[j] & 0x80) { if (!joy->last_buttons[j]) { input->joy_button(joy->id, (JoyButton)j, true); joy->last_buttons[j] = true; } } else { if (joy->last_buttons[j]) { input->joy_button(joy->id, (JoyButton)j, false); joy->last_buttons[j] = false; } } } // on mingw, these constants are not constants int count = 8; const LONG axes[] = { DIJOFS_X, DIJOFS_Y, DIJOFS_Z, DIJOFS_RX, DIJOFS_RY, DIJOFS_RZ, (LONG)DIJOFS_SLIDER(0), (LONG)DIJOFS_SLIDER(1) }; int values[] = { js.lX, js.lY, js.lZ, js.lRx, js.lRy, js.lRz, js.rglSlider[0], js.rglSlider[1] }; for (int j = 0; j < joy->joy_axis.size(); j++) { for (int k = 0; k < count; k++) { if (joy->joy_axis[j] == axes[k]) { input->joy_axis(joy->id, (JoyAxis)j, axis_correct(values[k])); break; } } } } return; } void JoypadWindows::post_hat(int p_device, DWORD p_dpad) { HatMask dpad_val = (HatMask)0; // Should be -1 when centered, but according to docs: // "Some drivers report the centered position of the POV indicator as 65,535. Determine whether the indicator is centered as follows: // BOOL POVCentered = (LOWORD(dwPOV) == 0xFFFF);" // https://docs.microsoft.com/en-us/previous-versions/windows/desktop/ee416628(v%3Dvs.85)#remarks if (LOWORD(p_dpad) == 0xFFFF) { dpad_val = (HatMask)HatMask::CENTER; } if (p_dpad == 0) { dpad_val = (HatMask)HatMask::UP; } else if (p_dpad == 4500) { dpad_val = (HatMask)(HatMask::UP | HatMask::RIGHT); } else if (p_dpad == 9000) { dpad_val = (HatMask)HatMask::RIGHT; } else if (p_dpad == 13500) { dpad_val = (HatMask)(HatMask::RIGHT | HatMask::DOWN); } else if (p_dpad == 18000) { dpad_val = (HatMask)HatMask::DOWN; } else if (p_dpad == 22500) { dpad_val = (HatMask)(HatMask::DOWN | HatMask::LEFT); } else if (p_dpad == 27000) { dpad_val = (HatMask)HatMask::LEFT; } else if (p_dpad == 31500) { dpad_val = (HatMask)(HatMask::LEFT | HatMask::UP); } input->joy_hat(p_device, dpad_val); } float JoypadWindows::axis_correct(int p_val, bool p_xinput, bool p_trigger, bool p_negate) const { if (Math::abs(p_val) < MIN_JOY_AXIS) { return p_trigger ? -1.0f : 0.0f; } if (!p_xinput) { return (float)p_val / MAX_JOY_AXIS; } if (p_trigger) { // Convert to a value between -1.0f and 1.0f. return 2.0f * p_val / MAX_TRIGGER - 1.0f; } float value; if (p_val < 0) { value = (float)p_val / MAX_JOY_AXIS; } else { value = (float)p_val / (MAX_JOY_AXIS - 1); } if (p_negate) { value = -value; } return value; } void JoypadWindows::joypad_vibration_start_xinput(int p_device, float p_weak_magnitude, float p_strong_magnitude, float p_duration, uint64_t p_timestamp) { xinput_gamepad &joy = x_joypads[p_device]; if (joy.attached) { XINPUT_VIBRATION effect; effect.wLeftMotorSpeed = (65535 * p_strong_magnitude); effect.wRightMotorSpeed = (65535 * p_weak_magnitude); if (xinput_set_state(p_device, &effect) == ERROR_SUCCESS) { joy.ff_timestamp = p_timestamp; joy.ff_end_timestamp = p_duration == 0 ? 0 : p_timestamp + (uint64_t)(p_duration * 1000000.0); joy.vibrating = true; } } } void JoypadWindows::joypad_vibration_stop_xinput(int p_device, uint64_t p_timestamp) { xinput_gamepad &joy = x_joypads[p_device]; if (joy.attached) { XINPUT_VIBRATION effect; effect.wLeftMotorSpeed = 0; effect.wRightMotorSpeed = 0; if (xinput_set_state(p_device, &effect) == ERROR_SUCCESS) { joy.ff_timestamp = p_timestamp; joy.vibrating = false; } } } void JoypadWindows::load_xinput() { xinput_get_state = &_xinput_get_state; xinput_set_state = &_xinput_set_state; xinput_dll = LoadLibrary("XInput1_4.dll"); if (!xinput_dll) { xinput_dll = LoadLibrary("XInput1_3.dll"); if (!xinput_dll) { xinput_dll = LoadLibrary("XInput9_1_0.dll"); } } if (!xinput_dll) { print_verbose("Could not find XInput, using DirectInput only"); return; } XInputGetState_t func = (XInputGetState_t)GetProcAddress((HMODULE)xinput_dll, "XInputGetState"); XInputSetState_t set_func = (XInputSetState_t)GetProcAddress((HMODULE)xinput_dll, "XInputSetState"); if (!func || !set_func) { unload_xinput(); return; } xinput_get_state = func; xinput_set_state = set_func; } void JoypadWindows::unload_xinput() { if (xinput_dll) { FreeLibrary((HMODULE)xinput_dll); } }