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Merge pull request #8908 from jordan-woyak/wiimote-battery-hax 

WiimoteCommon: Tweak battery level math.
This commit is contained in:
LC 2020-07-08 08:46:58 -04:00 committed by GitHub
parent b9ae7c350e d382c6bab9
commit 4c50eadf34
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 21 additions and 11 deletions
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4
Source/Core/Core/HW/WiimoteCommon/WiimoteConstants.h
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@ -10,10 +10,6 @@ namespace WiimoteCommon
{
constexpr u8 MAX_PAYLOAD = 23;
// Based on testing, old WiiLi.org docs, and WiiUse library:
// Max battery level seems to be 0xc8 (decimal 200)
constexpr u8 MAX_BATTERY_LEVEL = 0xc8;
enum class InputReportID : u8
{
Status = 0x20,

16
Source/Core/Core/HW/WiimoteCommon/WiimoteReport.h
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@ -207,6 +207,22 @@ struct InputReportStatus
u8 leds : 4;
u8 padding2[2];
u8 battery;
constexpr float GetEstimatedCharge() const
{
return battery * BATTERY_LEVEL_M / BATTERY_MAX + BATTERY_LEVEL_B;
}
void SetEstimatedCharge(float charge)
{
battery = u8(std::lround((charge - BATTERY_LEVEL_B) / BATTERY_LEVEL_M * BATTERY_MAX));
}
private:
static constexpr auto BATTERY_MAX = std::numeric_limits<decltype(battery)>::max();
// Linear fit of battery level mid-point for charge bars in home menu.
static constexpr float BATTERY_LEVEL_M = 2.46f;
static constexpr float BATTERY_LEVEL_B = -0.013f;
};
static_assert(sizeof(InputReportStatus) == 6, "Wrong size");

5
Source/Core/Core/HW/WiimoteEmu/EmuSubroutines.cpp
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@ -235,13 +235,12 @@ void Wiimote::HandleRequestStatus(const OutputReportRequestStatus&)
// Update status struct
m_status.extension = m_extension_port.IsDeviceConnected();
m_status.battery = u8(std::lround(m_battery_setting.GetValue() / 100 * MAX_BATTERY_LEVEL));
m_status.SetEstimatedCharge(m_battery_setting.GetValue() / ciface::BATTERY_INPUT_MAX_VALUE);
if (Core::WantsDeterminism())
{
// One less thing to break determinism:
m_status.battery = MAX_BATTERY_LEVEL;
m_status.SetEstimatedCharge(1.f);
}
// Less than 0x20 triggers the low-battery flag:

5
Source/Core/InputCommon/ControllerInterface/Wiimote/Wiimote.cpp
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@ -288,8 +288,7 @@ Device::Device(std::unique_ptr<WiimoteReal::Wiimote> wiimote) : m_wiimote(std::m
AddInput(new AnalogInput<float>(&m_classic_state.triggers[1], classic_prefix + "R-Analog", 1.f));
// Specialty inputs:
AddInput(new UndetectableAnalogInput<u8>(
&m_battery, "Battery", WiimoteCommon::MAX_BATTERY_LEVEL / ciface::BATTERY_INPUT_MAX_VALUE));
AddInput(new UndetectableAnalogInput<float>(&m_battery, "Battery", 1.f));
AddInput(new UndetectableAnalogInput<WiimoteEmu::ExtensionNumber>(
&m_extension_number_input, "Attached Extension", WiimoteEmu::ExtensionNumber(1)));
AddInput(new UndetectableAnalogInput<bool>(&m_mplus_attached_input, "Attached MotionPlus", 1));
@ -1550,7 +1549,7 @@ void Device::ProcessStatusReport(const InputReportStatus& status)
// Update status periodically to keep battery level value up to date.
m_status_outdated_time = Clock::now() + std::chrono::seconds(10);
m_battery = status.battery;
m_battery = status.GetEstimatedCharge() * BATTERY_INPUT_MAX_VALUE;
m_leds = status.leds;
if (!status.ir)

2
Source/Core/InputCommon/ControllerInterface/Wiimote/Wiimote.h
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@ -233,7 +233,7 @@ private:
// Status report is requested every so often to update the battery level.
Clock::time_point m_status_outdated_time = Clock::now();
u8 m_battery = 0;
float m_battery = 0;
u8 m_leds = 0;
bool m_speaker_configured = false;