godot/platform/windows/joypad_windows.cpp

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/*************************************************************************/
/* joypad_windows.cpp */
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/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
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/*************************************************************************/
/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
/* 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"
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#include <oleauto.h>
#include <wbemidl.h>
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#ifndef __GNUC__
#define __builtin_bswap32 _byteswap_ulong
#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;
}
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JoypadWindows::JoypadWindows() {
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}
JoypadWindows::JoypadWindows(InputDefault *_input, HWND *hwnd) {
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input = _input;
hWnd = hwnd;
joypad_count = 0;
dinput = NULL;
xinput_dll = NULL;
xinput_get_state = NULL;
xinput_set_state = NULL;
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load_xinput();
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for (int i = 0; i < JOYPADS_MAX; i++)
attached_joypads[i] = false;
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HRESULT result;
result = DirectInput8Create(GetModuleHandle(NULL), DIRECTINPUT_VERSION, IID_IDirectInput8, (void **)&dinput, NULL);
if (FAILED(result)) {
printf("failed init DINPUT: %ld\n", result);
}
probe_joypads();
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}
JoypadWindows::~JoypadWindows() {
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close_joypad();
dinput->Release();
unload_xinput();
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}
bool JoypadWindows::have_device(const GUID &p_guid) {
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for (int i = 0; i < JOYPADS_MAX; i++) {
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if (d_joypads[i].guid == p_guid) {
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d_joypads[i].confirmed = true;
return true;
}
}
return false;
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}
// adapted from SDL2, works a lot better than the MSDN version
bool JoypadWindows::is_xinput_device(const GUID *p_guid) {
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static GUID IID_ValveStreamingGamepad = { MAKELONG(0x28DE, 0x11FF), 0x0000, 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 (p_guid == &IID_ValveStreamingGamepad || p_guid == &IID_X360WiredGamepad || p_guid == &IID_X360WirelessGamepad)
return true;
PRAWINPUTDEVICELIST dev_list = NULL;
unsigned int dev_list_count = 0;
if (GetRawInputDeviceList(NULL, &dev_list_count, sizeof(RAWINPUTDEVICELIST)) == -1) {
return false;
}
dev_list = (PRAWINPUTDEVICELIST)malloc(sizeof(RAWINPUTDEVICELIST) * dev_list_count);
if (!dev_list) return false;
if (GetRawInputDeviceList(dev_list, &dev_list_count, sizeof(RAWINPUTDEVICELIST)) == -1) {
free(dev_list);
return false;
}
for (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_") != NULL)) {
free(dev_list);
return true;
}
}
free(dev_list);
return false;
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}
bool JoypadWindows::setup_dinput_joypad(const DIDEVICEINSTANCE *instance) {
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HRESULT hr;
int num = input->get_unused_joy_id();
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if (have_device(instance->guidInstance) || num == -1)
return false;
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d_joypads[joypad_count] = dinput_gamepad();
dinput_gamepad *joy = &d_joypads[joypad_count];
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const DWORD devtype = (instance->dwDevType & 0xFF);
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if ((devtype != DI8DEVTYPE_JOYSTICK) && (devtype != DI8DEVTYPE_GAMEPAD) && (devtype != DI8DEVTYPE_1STPERSON)) {
return false;
}
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hr = dinput->CreateDevice(instance->guidInstance, &joy->di_joy, NULL);
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if (FAILED(hr)) {
return false;
}
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const GUID &guid = instance->guidProduct;
char uid[128];
sprintf_s(uid, "%08lx%04hx%04hx%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx",
__builtin_bswap32(guid.Data1), guid.Data2, guid.Data3,
guid.Data4[0], guid.Data4[1], guid.Data4[2], guid.Data4[3],
guid.Data4[4], guid.Data4[5], guid.Data4[6], guid.Data4[7]);
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id_to_change = joypad_count;
joy->di_joy->SetDataFormat(&c_dfDIJoystick2);
joy->di_joy->SetCooperativeLevel(*hWnd, DISCL_FOREGROUND);
joy->di_joy->EnumObjects(objectsCallback, this, 0);
joy->joy_axis.sort();
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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;
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}
void JoypadWindows::setup_joypad_object(const DIDEVICEOBJECTINSTANCE *ob, int p_joy_id) {
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if (ob->dwType & DIDFT_AXIS) {
HRESULT res;
DIPROPRANGE prop_range;
DIPROPDWORD dilong;
DWORD 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)
ofs = DIJOFS_SLIDER(0);
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);
}
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}
BOOL CALLBACK JoypadWindows::enumCallback(const DIDEVICEINSTANCE *p_instance, void *p_context) {
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JoypadWindows *self = (JoypadWindows *)p_context;
if (self->is_xinput_device(&p_instance->guidProduct)) {
return DIENUM_CONTINUE;
}
self->setup_dinput_joypad(p_instance);
return DIENUM_CONTINUE;
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}
BOOL CALLBACK JoypadWindows::objectsCallback(const DIDEVICEOBJECTINSTANCE *instance, void *context) {
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JoypadWindows *self = (JoypadWindows *)context;
self->setup_joypad_object(instance, self->id_to_change);
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return DIENUM_CONTINUE;
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}
void JoypadWindows::close_joypad(int id) {
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if (id == -1) {
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for (int i = 0; i < JOYPADS_MAX; i++) {
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close_joypad(i);
}
return;
}
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if (!d_joypads[id].attached) return;
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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--;
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}
void JoypadWindows::probe_joypads() {
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DWORD dwResult;
for (DWORD i = 0; i < XUSER_MAX_COUNT; i++) {
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ZeroMemory(&x_joypads[i].state, sizeof(XINPUT_STATE));
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dwResult = xinput_get_state(i, &x_joypads[i].state);
if (dwResult == ERROR_SUCCESS) {
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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) {
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x_joypads[i].attached = false;
attached_joypads[x_joypads[i].id] = false;
input->joy_connection_changed(x_joypads[i].id, false, "");
}
}
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for (int i = 0; i < joypad_count; i++) {
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d_joypads[i].confirmed = false;
}
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dinput->EnumDevices(DI8DEVCLASS_GAMECTRL, enumCallback, this, DIEDFL_ATTACHEDONLY);
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for (int i = 0; i < joypad_count; i++) {
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if (!d_joypads[i].confirmed) {
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close_joypad(i);
}
}
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}
void JoypadWindows::process_joypads() {
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HRESULT hr;
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for (int i = 0; i < XUSER_MAX_COUNT; i++) {
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xinput_gamepad &joy = x_joypads[i];
if (!joy.attached) {
continue;
}
ZeroMemory(&joy.state, sizeof(XINPUT_STATE));
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xinput_get_state(i, &joy.state);
if (joy.state.dwPacketNumber != joy.last_packet) {
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int button_mask = XINPUT_GAMEPAD_DPAD_UP;
for (int i = 0; i <= 16; i++) {
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input->joy_button(joy.id, i, joy.state.Gamepad.wButtons & button_mask);
button_mask = button_mask * 2;
}
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input->joy_axis(joy.id, JOY_AXIS_0, axis_correct(joy.state.Gamepad.sThumbLX, true));
input->joy_axis(joy.id, JOY_AXIS_1, axis_correct(joy.state.Gamepad.sThumbLY, true, false, true));
input->joy_axis(joy.id, JOY_AXIS_2, axis_correct(joy.state.Gamepad.sThumbRX, true));
input->joy_axis(joy.id, JOY_AXIS_3, axis_correct(joy.state.Gamepad.sThumbRY, true, false, true));
input->joy_axis(joy.id, JOY_AXIS_4, axis_correct(joy.state.Gamepad.bLeftTrigger, true, true));
input->joy_axis(joy.id, JOY_AXIS_5, 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);
}
}
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for (int i = 0; i < JOYPADS_MAX; i++) {
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dinput_gamepad *joy = &d_joypads[i];
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if (!joy->attached)
continue;
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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;
}
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post_hat(joy->id, js.rgdwPOV[0]);
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for (int j = 0; j < 128; j++) {
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if (js.rgbButtons[j] & 0x80) {
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if (!joy->last_buttons[j]) {
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input->joy_button(joy->id, j, true);
joy->last_buttons[j] = true;
}
} else {
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if (joy->last_buttons[j]) {
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input->joy_button(joy->id, j, false);
joy->last_buttons[j] = false;
}
}
}
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// on mingw, these constants are not constants
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int count = 6;
int axes[] = { DIJOFS_X, DIJOFS_Y, DIJOFS_Z, DIJOFS_RX, DIJOFS_RY, DIJOFS_RZ };
int values[] = { js.lX, js.lY, js.lZ, js.lRx, js.lRy, js.lRz };
for (int j = 0; j < joy->joy_axis.size(); j++) {
for (int k = 0; k < count; k++) {
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if (joy->joy_axis[j] == axes[k]) {
input->joy_axis(joy->id, j, axis_correct(values[k]));
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break;
};
};
};
}
return;
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}
void JoypadWindows::post_hat(int p_device, DWORD p_dpad) {
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int dpad_val = 0;
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if (p_dpad == -1) {
dpad_val = InputDefault::HAT_MASK_CENTER;
}
if (p_dpad == 0) {
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dpad_val = InputDefault::HAT_MASK_UP;
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} else if (p_dpad == 4500) {
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dpad_val = (InputDefault::HAT_MASK_UP | InputDefault::HAT_MASK_RIGHT);
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} else if (p_dpad == 9000) {
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dpad_val = InputDefault::HAT_MASK_RIGHT;
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} else if (p_dpad == 13500) {
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dpad_val = (InputDefault::HAT_MASK_RIGHT | InputDefault::HAT_MASK_DOWN);
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} else if (p_dpad == 18000) {
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dpad_val = InputDefault::HAT_MASK_DOWN;
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} else if (p_dpad == 22500) {
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dpad_val = (InputDefault::HAT_MASK_DOWN | InputDefault::HAT_MASK_LEFT);
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} else if (p_dpad == 27000) {
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dpad_val = InputDefault::HAT_MASK_LEFT;
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} else if (p_dpad == 31500) {
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dpad_val = (InputDefault::HAT_MASK_LEFT | InputDefault::HAT_MASK_UP);
}
input->joy_hat(p_device, dpad_val);
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};
InputDefault::JoyAxis JoypadWindows::axis_correct(int p_val, bool p_xinput, bool p_trigger, bool p_negate) const {
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InputDefault::JoyAxis jx;
if (Math::abs(p_val) < MIN_JOY_AXIS) {
jx.min = p_trigger ? 0 : -1;
jx.value = 0.0f;
return jx;
}
if (p_xinput) {
if (p_trigger) {
jx.min = 0;
jx.value = (float)p_val / MAX_TRIGGER;
return jx;
}
jx.min = -1;
if (p_val < 0) {
jx.value = (float)p_val / MAX_JOY_AXIS;
} else {
jx.value = (float)p_val / (MAX_JOY_AXIS - 1);
}
if (p_negate) {
jx.value = -jx.value;
}
return jx;
}
jx.min = -1;
jx.value = (float)p_val / MAX_JOY_AXIS;
return jx;
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}
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() {
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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;
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}
void JoypadWindows::unload_xinput() {
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if (xinput_dll) {
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FreeLibrary((HMODULE)xinput_dll);
}
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}