dolphin/Source/Plugins/Plugin_nJoy_SDL/Src/Rumble.cpp

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//////////////////////////////////////////////////////////////////////////////////////////
// Project description
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// Name: nJoy
// Description: A Dolphin Compatible Input Plugin
//
// Author: Falcon4ever (nJoy@falcon4ever.com)
// Site: www.multigesture.net
// Copyright (C) 2003-2008 Dolphin Project.
//
//////////////////////////////////////////////////////////////////////////////////////////
//
// Licensetype: GNU General Public License (GPL)
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
//
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
//
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
//
//////////////////////////////////////////////////////////////////////////////////////////
////////////////////////
// Include
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
#include "nJoy.h"
//////////////////////////////////////////////////////////////////////////////////////////
// Enable or disable rumble. Set USE_RUMBLE_DINPUT_HACK in nJoy.h
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
#ifdef USE_RUMBLE_DINPUT_HACK
bool g_rumbleEnable = FALSE;
#endif
// Rumble in windows
#ifdef _WIN32
#ifdef USE_RUMBLE_DINPUT_HACK
LPDIRECTINPUT8 g_pDI = NULL;
LPDIRECTINPUTDEVICE8 g_pDevice = NULL;
LPDIRECTINPUTEFFECT g_pEffect = NULL;
DWORD g_dwNumForceFeedbackAxis = 0;
INT g_nXForce = 0;
INT g_nYForce = 0;
#define SAFE_RELEASE(p) { if (p) { (p)->Release(); (p)=NULL; } }
HRESULT InitDirectInput(HWND hDlg);
//VOID FreeDirectInput();
BOOL CALLBACK EnumFFDevicesCallback(const DIDEVICEINSTANCE* pInst, VOID* pContext);
BOOL CALLBACK EnumAxesCallback(const DIDEVICEOBJECTINSTANCE* pdidoi, VOID* pContext);
HRESULT SetDeviceForcesXY();
#endif
#elif defined(__linux__)
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
int fd;
char device_file_name[64];
struct ff_effect effect;
bool CanRumble = false;
#endif
//////////////////////
// Set PAD rumble. Explanation: Stop = 0, Rumble = 1
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void PAD_Rumble(u8 _numPAD, unsigned int _uType, unsigned int _uStrength)
{
//if (_numPAD > 0)
// return;
// SDL can't rumble the gamepad so we need to use platform specific code
#ifdef _WIN32
#ifdef USE_RUMBLE_DINPUT_HACK
static int a = 0;
if ((_uType == 0) || (_uType == 2))
{
a = 0;
}
else if (_uType == 1)
{
a = _uStrength > 2 ? 8000 : 0;
}
a = int ((float)a * 0.96f);
if (!g_rumbleEnable)
{
a = 0;
}
else
{
g_nYForce = a;
SetDeviceForcesXY();
}
#endif
#elif defined(__linux__)
struct input_event event;
if (CanRumble)
{
if (_uType == 1)
{
event.type = EV_FF;
event.code = effect.id;
event.value = 1;
if (write(fd, (const void*) &event, sizeof(event)) == -1) {
perror("Play effect");
exit(1);
}
}
if ((_uType == 0) || (_uType == 2))
{
event.type = EV_FF;
event.code = effect.id;
event.value = 0;
if (write(fd, (const void*) &event, sizeof(event)) == -1) {
perror("Stop effect");
exit(1);
}
}
}
#endif
}
// Use PAD rumble
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void Pad_Use_Rumble(u8 _numPAD, SPADStatus* _pPADStatus)
{
#ifdef _WIN32
#ifdef USE_RUMBLE_DINPUT_HACK
// Enable or disable rumble
if (joystate[_numPAD].halfpress)
if (!g_pDI)
if (FAILED(InitDirectInput(m_hWnd)))
{
MessageBox(NULL, SDL_GetError(), "Could not initialize DirectInput!", MB_ICONERROR);
g_rumbleEnable = FALSE;
//return;
}
else
{
g_rumbleEnable = TRUE;
}
if (g_rumbleEnable)
{
g_pDevice->Acquire();
if (g_pEffect) g_pEffect->Start(1, 0);
}
#endif
#elif defined(__linux__)
if (!fd)
{
sprintf(device_file_name, "/dev/input/event%d", joysticks[_numPAD].eventnum); //TODO: Make dynamic //
/* Open device */
fd = open(device_file_name, O_RDWR);
if (fd == -1) {
perror("Open device file");
//Something wrong, probably permissions, just return now
return;
}
int n_effects = 0;
if (ioctl(fd, EVIOCGEFFECTS, &n_effects) == -1) {
perror("Ioctl number of effects");
}
if (n_effects > 0)
CanRumble = true;
else
return; // Return since we can't do any effects
/* a strong rumbling effect */
effect.type = FF_RUMBLE;
effect.id = -1;
effect.u.rumble.strong_magnitude = 0x8000;
effect.u.rumble.weak_magnitude = 0;
effect.replay.length = 5000; // Set to 5 seconds, if a Game needs more for a single rumble event, it is dumb and must be a demo
effect.replay.delay = 0;
if (ioctl(fd, EVIOCSFF, &effect) == -1) {
perror("Upload effect");
CanRumble = false; //We have effects but it doesn't support the rumble we are using. This is basic rumble, should work for most
}
}
#endif
}
#ifdef _WIN32
//////////////////////////////////////////////////////////////////////////////////////////
// Rumble stuff :D!
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//
#ifdef USE_RUMBLE_DINPUT_HACK
HRESULT InitDirectInput( HWND hDlg )
{
DIPROPDWORD dipdw;
HRESULT hr;
// Register with the DirectInput subsystem and get a pointer to a IDirectInput interface we can use.
if (FAILED(hr = DirectInput8Create(GetModuleHandle(NULL), DIRECTINPUT_VERSION, IID_IDirectInput8, (VOID**)&g_pDI, NULL)))
{
return hr;
}
// Look for a force feedback device we can use
if (FAILED(hr = g_pDI->EnumDevices( DI8DEVCLASS_GAMECTRL, EnumFFDevicesCallback, NULL, DIEDFL_ATTACHEDONLY | DIEDFL_FORCEFEEDBACK)))
{
return hr;
}
if (NULL == g_pDevice)
{
MessageBox(NULL, "Force feedback device not found. nJoy will now disable rumble." ,"FFConst" , MB_ICONERROR | MB_OK);
g_rumbleEnable = FALSE;
return S_OK;
}
// Set the data format to "simple joystick" - a predefined data format. A
// data format specifies which controls on a device we are interested in,
// and how they should be reported.
//
// This tells DirectInput that we will be passing a DIJOYSTATE structure to
// IDirectInputDevice8::GetDeviceState(). Even though we won't actually do
// it in this sample. But setting the data format is important so that the
// DIJOFS_* values work properly.
if (FAILED(hr = g_pDevice->SetDataFormat(&c_dfDIJoystick)))
return hr;
// Set the cooperative level to let DInput know how this device should
// interact with the system and with other DInput applications.
// Exclusive access is required in order to perform force feedback.
//if (FAILED(hr = g_pDevice->SetCooperativeLevel(hDlg, DISCL_EXCLUSIVE | DISCL_FOREGROUND)))
if (FAILED(hr = g_pDevice->SetCooperativeLevel(hDlg, DISCL_EXCLUSIVE | DISCL_FOREGROUND)))
{
return hr;
}
// Since we will be playing force feedback effects, we should disable the
// auto-centering spring.
dipdw.diph.dwSize = sizeof(DIPROPDWORD);
dipdw.diph.dwHeaderSize = sizeof(DIPROPHEADER);
dipdw.diph.dwObj = 0;
dipdw.diph.dwHow = DIPH_DEVICE;
dipdw.dwData = FALSE;
if (FAILED(hr = g_pDevice->SetProperty(DIPROP_AUTOCENTER, &dipdw.diph)))
return hr;
// Enumerate and count the axes of the joystick
if (FAILED(hr = g_pDevice->EnumObjects(EnumAxesCallback, (VOID*)&g_dwNumForceFeedbackAxis, DIDFT_AXIS)))
return hr;
// This simple sample only supports one or two axis joysticks
if (g_dwNumForceFeedbackAxis > 2)
g_dwNumForceFeedbackAxis = 2;
// This application needs only one effect: Applying raw forces.
DWORD rgdwAxes[2] = {DIJOFS_X, DIJOFS_Y};
LONG rglDirection[2] = {0, 0};
DICONSTANTFORCE cf = {0};
DIEFFECT eff;
ZeroMemory(&eff, sizeof(eff));
eff.dwSize = sizeof(DIEFFECT);
eff.dwFlags = DIEFF_CARTESIAN | DIEFF_OBJECTOFFSETS;
eff.dwDuration = INFINITE;
eff.dwSamplePeriod = 0;
eff.dwGain = DI_FFNOMINALMAX;
eff.dwTriggerButton = DIEB_NOTRIGGER;
eff.dwTriggerRepeatInterval = 0;
eff.cAxes = g_dwNumForceFeedbackAxis;
eff.rgdwAxes = rgdwAxes;
eff.rglDirection = rglDirection;
eff.lpEnvelope = 0;
eff.cbTypeSpecificParams = sizeof( DICONSTANTFORCE );
eff.lpvTypeSpecificParams = &cf;
eff.dwStartDelay = 0;
// Create the prepared effect
if (FAILED(hr = g_pDevice->CreateEffect(GUID_ConstantForce, &eff, &g_pEffect, NULL)))
{
return hr;
}
if (NULL == g_pEffect)
return E_FAIL;
return S_OK;
}
VOID FreeDirectInput()
{
// Unacquire the device one last time just in case
// the app tried to exit while the device is still acquired.
if (g_pDevice)
g_pDevice->Unacquire();
// Release any DirectInput objects.
SAFE_RELEASE(g_pEffect);
SAFE_RELEASE(g_pDevice);
SAFE_RELEASE(g_pDI);
}
BOOL CALLBACK EnumFFDevicesCallback( const DIDEVICEINSTANCE* pInst, VOID* pContext )
{
LPDIRECTINPUTDEVICE8 pDevice;
HRESULT hr;
// Obtain an interface to the enumerated force feedback device.
hr = g_pDI->CreateDevice(pInst->guidInstance, &pDevice, NULL);
// If it failed, then we can't use this device for some bizarre reason.
// (Maybe the user unplugged it while we were in the middle of enumerating it.) So continue enumerating
if (FAILED(hr))
return DIENUM_CONTINUE;
// We successfully created an IDirectInputDevice8. So stop looking for another one.
g_pDevice = pDevice;
return DIENUM_STOP;
}
BOOL CALLBACK EnumAxesCallback(const DIDEVICEOBJECTINSTANCE* pdidoi, VOID* pContext)
{
DWORD* pdwNumForceFeedbackAxis = (DWORD*)pContext;
if ((pdidoi->dwFlags & DIDOI_FFACTUATOR) != 0)
(*pdwNumForceFeedbackAxis)++;
return DIENUM_CONTINUE;
}
HRESULT SetDeviceForcesXY()
{
// Modifying an effect is basically the same as creating a new one, except you need only specify the parameters you are modifying
LONG rglDirection[2] = { 0, 0 };
DICONSTANTFORCE cf;
if (g_dwNumForceFeedbackAxis == 1)
{
// If only one force feedback axis, then apply only one direction and keep the direction at zero
cf.lMagnitude = g_nXForce;
rglDirection[0] = 0;
}
else
{
// If two force feedback axis, then apply magnitude from both directions
rglDirection[0] = g_nXForce;
rglDirection[1] = g_nYForce;
cf.lMagnitude = (DWORD)sqrt((double)g_nXForce * (double)g_nXForce + (double)g_nYForce * (double)g_nYForce );
}
DIEFFECT eff;
ZeroMemory(&eff, sizeof(eff));
eff.dwSize = sizeof(DIEFFECT);
eff.dwFlags = DIEFF_CARTESIAN | DIEFF_OBJECTOFFSETS;
eff.cAxes = g_dwNumForceFeedbackAxis;
eff.rglDirection = rglDirection;
eff.lpEnvelope = 0;
eff.cbTypeSpecificParams = sizeof(DICONSTANTFORCE);
eff.lpvTypeSpecificParams = &cf;
eff.dwStartDelay = 0;
// Now set the new parameters and start the effect immediately.
return g_pEffect->SetParameters(&eff, DIEP_DIRECTION | DIEP_TYPESPECIFICPARAMS | DIEP_START);
}
#endif
#endif