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ControllerInterface/SDL: Add Battery Input.

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This commit is contained in:
Jordan Woyak 2024-11-04 19:09:52 -06:00
parent 53ede795a2
commit 83ed817ad2
1 changed files with 61 additions and 0 deletions
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61
Source/Core/InputCommon/ControllerInterface/SDL/SDL.cpp
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@ -56,6 +56,38 @@ bool IsTriggerAxis(int index)
return index >= 4;
}
ControlState GetBatteryValueFromSDLPowerLevel(SDL_JoystickPowerLevel sdl_power_level)
{
// Values come from comments in SDL_joystick.h
// A proper percentage will be exposed in SDL3.
ControlState result;
switch (sdl_power_level)
{
case SDL_JOYSTICK_POWER_EMPTY:
result = 0.025;
break;
case SDL_JOYSTICK_POWER_LOW:
result = 0.125;
break;
case SDL_JOYSTICK_POWER_MEDIUM:
result = 0.45;
break;
case SDL_JOYSTICK_POWER_FULL:
result = 0.85;
break;
case SDL_JOYSTICK_POWER_WIRED:
case SDL_JOYSTICK_POWER_MAX:
result = 1.0;
break;
case SDL_JOYSTICK_POWER_UNKNOWN:
default:
result = 0.0;
break;
}
return result * ciface::BATTERY_INPUT_MAX_VALUE;
}
} // namespace
namespace ciface::SDL
@ -142,6 +174,18 @@ private:
const u8 m_direction;
};
class BatteryInput final : public Input
{
public:
explicit BatteryInput(const ControlState* battery_value) : m_battery_value(*battery_value) {}
std::string GetName() const override { return "Battery"; }
ControlState GetState() const override { return m_battery_value; }
bool IsDetectable() const override { return false; }
private:
const ControlState& m_battery_value;
};
// Rumble
template <int LowEnable, int HighEnable, int SuffixIndex>
class GenericMotor : public Output
@ -269,12 +313,18 @@ public:
std::string GetName() const override;
std::string GetSource() const override;
int GetSDLInstanceID() const;
Core::DeviceRemoval UpdateInput() override
{
m_battery_value = GetBatteryValueFromSDLPowerLevel(SDL_JoystickCurrentPowerLevel(m_joystick));
return Core::DeviceRemoval::Keep;
}
private:
SDL_GameController* const m_gamecontroller;
std::string m_name;
SDL_Joystick* const m_joystick;
SDL_Haptic* m_haptic = nullptr;
ControlState m_battery_value;
};
class InputBackend final : public ciface::InputBackend
@ -767,6 +817,17 @@ GameController::GameController(SDL_GameController* const gamecontroller,
}
}
}
// Needed to make the below power level not "UNKNOWN".
SDL_JoystickUpdate();
// Battery
if (SDL_JoystickPowerLevel const power_level = SDL_JoystickCurrentPowerLevel(m_joystick);
power_level != SDL_JOYSTICK_POWER_UNKNOWN)
{
m_battery_value = GetBatteryValueFromSDLPowerLevel(power_level);
AddInput(new BatteryInput{&m_battery_value});
}
}
GameController::~GameController()