dolphin/Source/Core/InputCommon/ControllerInterface/XInput/XInput.cpp

303 lines
8.1 KiB
C++

// Copyright 2010 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "InputCommon/ControllerInterface/XInput/XInput.h"
#ifndef XINPUT_GAMEPAD_GUIDE
#define XINPUT_GAMEPAD_GUIDE 0x0400
#endif
namespace ciface::XInput
{
struct ButtonDef
{
const char* name;
WORD bitmask;
};
static constexpr std::array<ButtonDef, 15> named_buttons{{
{"Button A", XINPUT_GAMEPAD_A},
{"Button B", XINPUT_GAMEPAD_B},
{"Button X", XINPUT_GAMEPAD_X},
{"Button Y", XINPUT_GAMEPAD_Y},
{"Pad N", XINPUT_GAMEPAD_DPAD_UP},
{"Pad S", XINPUT_GAMEPAD_DPAD_DOWN},
{"Pad W", XINPUT_GAMEPAD_DPAD_LEFT},
{"Pad E", XINPUT_GAMEPAD_DPAD_RIGHT},
{"Start", XINPUT_GAMEPAD_START},
{"Back", XINPUT_GAMEPAD_BACK},
{"Shoulder L", XINPUT_GAMEPAD_LEFT_SHOULDER},
{"Shoulder R", XINPUT_GAMEPAD_RIGHT_SHOULDER},
{"Guide", XINPUT_GAMEPAD_GUIDE},
{"Thumb L", XINPUT_GAMEPAD_LEFT_THUMB},
{"Thumb R", XINPUT_GAMEPAD_RIGHT_THUMB},
}};
static constexpr std::array named_triggers{"Trigger L", "Trigger R"};
static constexpr std::array named_axes{"Left X", "Left Y", "Right X", "Right Y"};
static constexpr std::array named_motors{"Motor L", "Motor R"};
class Button final : public Core::Device::Input
{
public:
Button(u8 index, const WORD& buttons) : m_buttons(buttons), m_index(index) {}
std::string GetName() const override { return named_buttons[m_index].name; }
ControlState GetState() const override
{
return (m_buttons & named_buttons[m_index].bitmask) > 0;
}
private:
const WORD& m_buttons;
const u8 m_index;
};
class Axis final : public Core::Device::Input
{
public:
Axis(u8 index, const SHORT& axis, SHORT range) : m_axis(axis), m_range(range), m_index(index) {}
std::string GetName() const override
{
return std::string(named_axes[m_index]) + (m_range < 0 ? '-' : '+');
}
ControlState GetState() const override { return ControlState(m_axis) / m_range; }
private:
const SHORT& m_axis;
const SHORT m_range;
const u8 m_index;
};
class Trigger final : public Core::Device::Input
{
public:
Trigger(u8 index, const BYTE& trigger, BYTE range)
: m_trigger(trigger), m_range(range), m_index(index)
{
}
std::string GetName() const override { return named_triggers[m_index]; }
ControlState GetState() const override { return ControlState(m_trigger) / m_range; }
private:
const BYTE& m_trigger;
const BYTE m_range;
const u8 m_index;
};
class Motor final : public Core::Device::Output
{
public:
Motor(u8 index, Device* parent, WORD& motor, WORD range)
: m_motor(motor), m_range(range), m_index(index), m_parent(parent)
{
}
std::string GetName() const override { return named_motors[m_index]; }
void SetState(ControlState state) override
{
const auto old_value = m_motor;
m_motor = (WORD)(state * m_range);
// Only update if the state changed.
if (m_motor != old_value)
m_parent->UpdateMotors();
}
private:
WORD& m_motor;
const WORD m_range;
const u8 m_index;
Device* m_parent;
};
class Battery final : public Core::Device::Input
{
public:
Battery(const ControlState* level) : m_level(*level) {}
std::string GetName() const override { return "Battery"; }
ControlState GetState() const override { return m_level; }
bool IsDetectable() const override { return false; }
private:
const ControlState& m_level;
};
static HMODULE hXInput = nullptr;
typedef decltype(&XInputGetCapabilities) XInputGetCapabilities_t;
typedef decltype(&XInputSetState) XInputSetState_t;
typedef decltype(&XInputGetState) XInputGetState_t;
typedef decltype(&XInputGetBatteryInformation) XInputGetBatteryInformation_t;
static XInputGetCapabilities_t PXInputGetCapabilities = nullptr;
static XInputSetState_t PXInputSetState = nullptr;
static XInputGetState_t PXInputGetState = nullptr;
static XInputGetBatteryInformation_t PXInputGetBatteryInformation = nullptr;
static bool s_have_guide_button = false;
void Init()
{
if (!hXInput)
{
// Try for the most recent version we were compiled against (will only work if running on Win8+)
hXInput = ::LoadLibrary(XINPUT_DLL);
if (!hXInput)
{
// Drop back to DXSDK June 2010 version. Requires DX June 2010 redist.
hXInput = ::LoadLibrary(TEXT("xinput1_3.dll"));
if (!hXInput)
{
return;
}
}
PXInputGetCapabilities =
(XInputGetCapabilities_t)::GetProcAddress(hXInput, "XInputGetCapabilities");
PXInputSetState = (XInputSetState_t)::GetProcAddress(hXInput, "XInputSetState");
PXInputGetBatteryInformation =
(XInputGetBatteryInformation_t)::GetProcAddress(hXInput, "XInputGetBatteryInformation");
// Ordinal 100 is the same as XInputGetState, except it doesn't dummy out the guide
// button info. Try loading it and fall back if needed.
PXInputGetState = (XInputGetState_t)::GetProcAddress(hXInput, (LPCSTR)100);
s_have_guide_button = PXInputGetState != nullptr;
if (!PXInputGetState)
PXInputGetState = (XInputGetState_t)::GetProcAddress(hXInput, "XInputGetState");
if (!PXInputGetCapabilities || !PXInputSetState || !PXInputGetState ||
!PXInputGetBatteryInformation)
{
::FreeLibrary(hXInput);
hXInput = nullptr;
return;
}
}
}
void PopulateDevices()
{
if (!hXInput)
return;
g_controller_interface.RemoveDevice([](const auto* dev) { return dev->GetSource() == "XInput"; });
XINPUT_CAPABILITIES caps;
for (int i = 0; i != 4; ++i)
if (ERROR_SUCCESS == PXInputGetCapabilities(i, 0, &caps))
g_controller_interface.AddDevice(std::make_shared<Device>(caps, i));
}
void DeInit()
{
if (hXInput)
{
::FreeLibrary(hXInput);
hXInput = nullptr;
}
}
Device::Device(const XINPUT_CAPABILITIES& caps, u8 index) : m_subtype(caps.SubType), m_index(index)
{
// XInputGetCaps can be broken on some devices, so we'll just ignore it
// and assume all gamepad + vibration capabilities are supported
// Buttons.
for (size_t i = 0; i != size(named_buttons); ++i)
{
// Only add guide button if we have the 100 ordinal XInputGetState.
if (named_buttons[i].bitmask == XINPUT_GAMEPAD_GUIDE && !s_have_guide_button)
continue;
AddInput(new Button(u8(i), m_state_in.Gamepad.wButtons));
}
// Triggers.
for (size_t i = 0; i != size(named_triggers); ++i)
AddInput(new Trigger(u8(i), (&m_state_in.Gamepad.bLeftTrigger)[i], 255));
// Axes.
for (size_t i = 0; i != size(named_axes); ++i)
{
const SHORT& ax = (&m_state_in.Gamepad.sThumbLX)[i];
// Each axis gets a negative and a positive input instance associated with it.
AddInput(new Axis(u8(i), ax, -32768));
AddInput(new Axis(u8(i), ax, 32767));
}
// Rumble motors.
for (size_t i = 0; i != size(named_motors); ++i)
AddOutput(new Motor(u8(i), this, (&m_state_out.wLeftMotorSpeed)[i], 65535));
AddInput(new Battery(&m_battery_level));
}
std::string Device::GetName() const
{
switch (m_subtype)
{
case XINPUT_DEVSUBTYPE_GAMEPAD:
return "Gamepad";
case XINPUT_DEVSUBTYPE_WHEEL:
return "Wheel";
case XINPUT_DEVSUBTYPE_ARCADE_STICK:
return "Arcade Stick";
case XINPUT_DEVSUBTYPE_FLIGHT_STICK:
return "Flight Stick";
case XINPUT_DEVSUBTYPE_DANCE_PAD:
return "Dance Pad";
case XINPUT_DEVSUBTYPE_GUITAR:
return "Guitar";
case XINPUT_DEVSUBTYPE_DRUM_KIT:
return "Drum Kit";
default:
return "Device";
}
}
std::string Device::GetSource() const
{
return "XInput";
}
void Device::UpdateInput()
{
PXInputGetState(m_index, &m_state_in);
XINPUT_BATTERY_INFORMATION battery_info = {};
if (SUCCEEDED(PXInputGetBatteryInformation(m_index, BATTERY_DEVTYPE_GAMEPAD, &battery_info)))
{
switch (battery_info.BatteryType)
{
case BATTERY_TYPE_DISCONNECTED:
case BATTERY_TYPE_UNKNOWN:
m_battery_level = 0;
break;
case BATTERY_TYPE_WIRED:
m_battery_level = BATTERY_INPUT_MAX_VALUE;
break;
default:
m_battery_level =
battery_info.BatteryLevel / ControlState(BATTERY_LEVEL_FULL) * BATTERY_INPUT_MAX_VALUE;
break;
}
}
}
void Device::UpdateMotors()
{
PXInputSetState(m_index, &m_state_out);
}
std::optional<int> Device::GetPreferredId() const
{
return m_index;
}
} // namespace ciface::XInput