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// Copyright 2010 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "InputCommon/ControllerEmu/ControllerEmu.h"
#include <memory>
#include <mutex>
#include <string>
#include <utility>
#include "Common/IniFile.h"
#include "InputCommon/ControlReference/ControlReference.h"
#include "InputCommon/ControllerEmu/ControlGroup/ControlGroup.h"
#include "InputCommon/ControllerInterface/ControllerInterface.h"
namespace ControllerEmu
{
// This should theoretically be per EmulatedController instance,
// though no EmulatedController usually run in parallel, so it makes little difference
static std::recursive_mutex s_get_state_mutex;
std::string ControlGroupContainer::GetDisplayName() const
{
return GetName();
}
EmulatedController::~EmulatedController() = default;
// This should be called before calling GetState() or State() on a control reference
// to prevent a race condition.
// This is a recursive mutex because UpdateReferences is recursive.
std::unique_lock<std::recursive_mutex> EmulatedController::GetStateLock()
{
std::unique_lock<std::recursive_mutex> lock(s_get_state_mutex);
return lock;
}
void EmulatedController::UpdateReferences(const ControllerInterface& devi)
{
std::scoped_lock lk(s_get_state_mutex, devi.GetDevicesMutex());
m_default_device_is_connected = devi.HasConnectedDevice(m_default_device);
ciface::ExpressionParser::ControlEnvironment env(devi, GetDefaultDevice(), m_expression_vars);
UpdateGroupsReferences(env);
env.CleanUnusedVariables();
}
void ControlGroupContainer::UpdateGroupsReferences(
ciface::ExpressionParser::ControlEnvironment& env)
{
const auto lock = EmulatedController::GetStateLock();
for (auto& group : groups)
group->UpdateReferences(env);
}
void EmulatedController::UpdateSingleControlReference(const ControllerInterface& devi,
ControlReference* ref)
{
ciface::ExpressionParser::ControlEnvironment env(devi, GetDefaultDevice(), m_expression_vars);
const auto lock = GetStateLock();
ref->UpdateReference(env);
env.CleanUnusedVariables();
}
const ciface::ExpressionParser::ControlEnvironment::VariableContainer&
EmulatedController::GetExpressionVariables() const
{
return m_expression_vars;
}
void EmulatedController::ResetExpressionVariables()
{
for (auto& var : m_expression_vars)
{
if (var.second)
{
*var.second = 0;
}
}
}
bool EmulatedController::IsDefaultDeviceConnected() const
{
return m_default_device_is_connected;
}
const ciface::Core::DeviceQualifier& EmulatedController::GetDefaultDevice() const
{
return m_default_device;
}
void EmulatedController::SetDefaultDevice(const std::string& device)
{
ciface::Core::DeviceQualifier devq;
devq.FromString(device);
SetDefaultDevice(std::move(devq));
}
void EmulatedController::SetDefaultDevice(ciface::Core::DeviceQualifier devq)
{
m_default_device = std::move(devq);
}
ControlGroupContainer::~ControlGroupContainer() = default;
void EmulatedController::LoadConfig(Common::IniFile::Section* sec)
{
const auto lock = EmulatedController::GetStateLock();
std::string defdev;
if (sec->Get("Device", &defdev, ""))
SetDefaultDevice(defdev);
LoadGroupsConfig(sec, "");
}
void ControlGroupContainer::LoadGroupsConfig(Common::IniFile::Section* sec, const std::string& base)
{
for (auto& cg : groups)
cg->LoadConfig(sec, base);
}
void EmulatedController::SaveConfig(Common::IniFile::Section* sec)
{
const auto lock = EmulatedController::GetStateLock();
sec->Set("Device", GetDefaultDevice().ToString(), "");
SaveGroupsConfig(sec, "");
}
void ControlGroupContainer::SaveGroupsConfig(Common::IniFile::Section* sec, const std::string& base)
{
for (auto& cg : groups)
cg->SaveConfig(sec, base);
}
void EmulatedController::LoadDefaults(const ControllerInterface& ciface)
{
const auto lock = GetStateLock();
// load an empty inifile section, clears everything
Common::IniFile::Section sec;
LoadConfig(&sec);
const std::string& default_device_string = ciface.GetDefaultDeviceString();
if (!default_device_string.empty())
{
SetDefaultDevice(default_device_string);
}
}
void ControlGroupContainer::SetInputOverrideFunction(InputOverrideFunction override_func)
{
m_input_override_function = std::move(override_func);
}
void ControlGroupContainer::ClearInputOverrideFunction()
{
m_input_override_function = {};
}
} // namespace ControllerEmu
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