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virtualx-engine/platform/windows/joypad_windows.cpp
Rémi Verschelde a7f49ac9a1 Update copyright statements to 2020 
Happy new year to the wonderful Godot community!

We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.

Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
2020-01-01 11:16:22 +01:00

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/*************************************************************************/
/* joypad_windows.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 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>
#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;
}
JoypadWindows::JoypadWindows() {
}
JoypadWindows::JoypadWindows(InputDefault *_input, HWND *hwnd) {
input = _input;
hWnd = hwnd;
joypad_count = 0;
dinput = NULL;
xinput_dll = NULL;
xinput_get_state = NULL;
xinput_set_state = NULL;
load_xinput();
for (int i = 0; i < JOYPADS_MAX; i++)
attached_joypads[i] = false;
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();
}
JoypadWindows::~JoypadWindows() {
close_joypad();
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), 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)) == (UINT)-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)) == (UINT)-1) {
free(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_") != NULL)) {
free(dev_list);
return true;
}
}
free(dev_list);
return false;
}
bool JoypadWindows::setup_dinput_joypad(const DIDEVICEINSTANCE *instance) {
HRESULT hr;
int num = input->get_unused_joy_id();
if (have_device(instance->guidInstance) || num == -1)
return false;
d_joypads[joypad_count] = dinput_gamepad();
dinput_gamepad *joy = &d_joypads[joypad_count];
const DWORD devtype = (instance->dwDevType & 0xFF);
if ((devtype != DI8DEVTYPE_JOYSTICK) && (devtype != DI8DEVTYPE_GAMEPAD) && (devtype != DI8DEVTYPE_1STPERSON)) {
return false;
}
hr = dinput->CreateDevice(instance->guidInstance, &joy->di_joy, NULL);
if (FAILED(hr)) {
return false;
}
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]);
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();
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;
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);
}
}
BOOL CALLBACK JoypadWindows::enumCallback(const DIDEVICEINSTANCE *p_instance, void *p_context) {
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;
}
BOOL CALLBACK JoypadWindows::objectsCallback(const DIDEVICEOBJECTINSTANCE *instance, void *context) {
JoypadWindows *self = (JoypadWindows *)context;
self->setup_joypad_object(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() {
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, j, joy.state.Gamepad.wButtons & button_mask);
button_mask = button_mask * 2;
}
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);
}
}
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, j, true);
joy->last_buttons[j] = true;
}
} else {
if (joy->last_buttons[j]) {
input->joy_button(joy->id, j, false);
joy->last_buttons[j] = false;
}
}
}
// on mingw, these constants are not constants
int count = 6;
unsigned 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++) {
if (joy->joy_axis[j] == axes[k]) {
input->joy_axis(joy->id, j, axis_correct(values[k]));
break;
};
};
};
}
return;
}
void JoypadWindows::post_hat(int p_device, DWORD p_dpad) {
int dpad_val = 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 = InputDefault::HAT_MASK_CENTER;
}
if (p_dpad == 0) {
dpad_val = InputDefault::HAT_MASK_UP;
} else if (p_dpad == 4500) {
dpad_val = (InputDefault::HAT_MASK_UP | InputDefault::HAT_MASK_RIGHT);
} else if (p_dpad == 9000) {
dpad_val = InputDefault::HAT_MASK_RIGHT;
} else if (p_dpad == 13500) {
dpad_val = (InputDefault::HAT_MASK_RIGHT | InputDefault::HAT_MASK_DOWN);
} else if (p_dpad == 18000) {
dpad_val = InputDefault::HAT_MASK_DOWN;
} else if (p_dpad == 22500) {
dpad_val = (InputDefault::HAT_MASK_DOWN | InputDefault::HAT_MASK_LEFT);
} else if (p_dpad == 27000) {
dpad_val = InputDefault::HAT_MASK_LEFT;
} else if (p_dpad == 31500) {
dpad_val = (InputDefault::HAT_MASK_LEFT | InputDefault::HAT_MASK_UP);
}
input->joy_hat(p_device, dpad_val);
};
InputDefault::JoyAxis JoypadWindows::axis_correct(int p_val, bool p_xinput, bool p_trigger, bool p_negate) const {
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;
}
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);
}
}
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