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// Copyright 2014 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include <algorithm>
#include <string>
#include "Common/Thread.h"
#include "InputCommon/ControllerInterface/ForceFeedback/ForceFeedbackDevice.h"
namespace ciface
{
namespace ForceFeedback
{
// template instantiation
template class ForceFeedbackDevice::Force<DICONSTANTFORCE>;
template class ForceFeedbackDevice::Force<DIRAMPFORCE>;
template class ForceFeedbackDevice::Force<DIPERIODIC>;
struct ForceType
{
GUID guid;
const std::string name;
};
static const ForceType force_type_names[] =
{
{GUID_ConstantForce, "Constant"}, // DICONSTANTFORCE
{GUID_RampForce, "Ramp"}, // DIRAMPFORCE
{GUID_Square, "Square"}, // DIPERIODIC ...
{GUID_Sine, "Sine"},
{GUID_Triangle, "Triangle"},
{GUID_SawtoothUp, "Sawtooth Up"},
{GUID_SawtoothDown, "Sawtooth Down"},
//{GUID_Spring, "Spring"}, // DICUSTOMFORCE ... < I think
//{GUID_Damper, "Damper"},
//{GUID_Inertia, "Inertia"},
//{GUID_Friction, "Friction"},
};
bool ForceFeedbackDevice::InitForceFeedback(const LPDIRECTINPUTDEVICE8 device, int cAxes)
{
if (cAxes == 0)
return false;
// TODO: check for DIDC_FORCEFEEDBACK in devcaps?
// temporary
DWORD rgdwAxes[2] = {DIJOFS_X, DIJOFS_Y};
LONG rglDirection[2] = {-200, 0};
DIEFFECT eff;
memset(&eff, 0, sizeof(eff));
eff.dwSize = sizeof(DIEFFECT);
eff.dwFlags = DIEFF_CARTESIAN | DIEFF_OBJECTOFFSETS;
eff.dwDuration = INFINITE; // (4 * DI_SECONDS)
eff.dwSamplePeriod = 0;
eff.dwGain = DI_FFNOMINALMAX;
eff.dwTriggerButton = DIEB_NOTRIGGER;
eff.dwTriggerRepeatInterval = 0;
eff.cAxes = std::min<DWORD>(1, cAxes);
eff.rgdwAxes = rgdwAxes;
eff.rglDirection = rglDirection;
// initialize parameters
DICONSTANTFORCE diCF = { -10000 };
diCF.lMagnitude = DI_FFNOMINALMAX;
DIRAMPFORCE diRF = { 0 };
DIPERIODIC diPE = { 0 };
// doesn't seem needed
//DIENVELOPE env;
//eff.lpEnvelope = &env;
//ZeroMemory(&env, sizeof(env));
//env.dwSize = sizeof(env);
for (const ForceType& f : force_type_names)
{
if (f.guid == GUID_ConstantForce)
{
eff.cbTypeSpecificParams = sizeof(DICONSTANTFORCE);
eff.lpvTypeSpecificParams = &diCF;
}
else if (f.guid == GUID_RampForce)
{
eff.cbTypeSpecificParams = sizeof(DIRAMPFORCE);
eff.lpvTypeSpecificParams = &diRF;
}
else
{
// all other forces need periodic parameters
eff.cbTypeSpecificParams = sizeof(DIPERIODIC);
eff.lpvTypeSpecificParams = &diPE;
}
LPDIRECTINPUTEFFECT pEffect;
if (SUCCEEDED(device->CreateEffect(f.guid, &eff, &pEffect, nullptr)))
{
if (f.guid == GUID_ConstantForce)
AddOutput(new ForceConstant(f.name, pEffect));
else if (f.guid == GUID_RampForce)
AddOutput(new ForceRamp(f.name, pEffect));
else
AddOutput(new ForcePeriodic(f.name, pEffect));
}
}
// disable autocentering
if (Outputs().size())
{
DIPROPDWORD dipdw;
dipdw.diph.dwSize = sizeof( DIPROPDWORD );
dipdw.diph.dwHeaderSize = sizeof( DIPROPHEADER );
dipdw.diph.dwObj = 0;
dipdw.diph.dwHow = DIPH_DEVICE;
dipdw.dwData = DIPROPAUTOCENTER_OFF;
device->SetProperty( DIPROP_AUTOCENTER, &dipdw.diph );
}
return true;
}
template<typename P>
ForceFeedbackDevice::Force<P>::~Force()
{
m_iface->Stop();
m_iface->Unload();
m_iface->Release();
}
template<typename P>
void ForceFeedbackDevice::Force<P>::Update()
{
DIEFFECT eff = {};
eff.dwSize = sizeof(DIEFFECT);
eff.dwFlags = DIEFF_CARTESIAN | DIEFF_OBJECTOFFSETS;
eff.cbTypeSpecificParams = sizeof(P);
eff.lpvTypeSpecificParams = ¶ms;
// set params and start effect
m_iface->SetParameters(&eff, DIEP_TYPESPECIFICPARAMS | DIEP_START);
}
template<typename P>
void ForceFeedbackDevice::Force<P>::Stop()
{
m_iface->Stop();
}
template<>
void ForceFeedbackDevice::ForceConstant::SetState(const ControlState state)
{
const LONG new_val = LONG(10000 * state);
if (params.lMagnitude == new_val)
return;
params.lMagnitude = new_val;
if (new_val)
Update();
else
Stop();
}
template<>
void ForceFeedbackDevice::ForceRamp::SetState(const ControlState state)
{
const LONG new_val = LONG(10000 * state);
if (params.lStart == new_val)
return;
params.lStart = params.lEnd = new_val;
if (new_val)
Update();
else
Stop();
}
template<>
void ForceFeedbackDevice::ForcePeriodic::SetState(const ControlState state)
{
const DWORD new_val = DWORD(10000 * state);
if (params.dwMagnitude == new_val)
return;
params.dwMagnitude = new_val;
if (new_val)
Update();
else
Stop();
}
template <typename P>
ForceFeedbackDevice::Force<P>::Force(const std::string& name, LPDIRECTINPUTEFFECT iface)
: m_name(name), m_iface(iface)
{
memset(¶ms, 0, sizeof(params));
}
template <typename P>
std::string ForceFeedbackDevice::Force<P>::GetName() const
{
return m_name;
}
}
}
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