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nJoy: Preparation for adding new options. NOTICE: Not tested in OSX

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@1665 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
John Peterson
2008-12-26 02:42:15 +00:00
parent ce01268885
commit 92cef41968
10 changed files with 1119 additions and 642 deletions
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537
Source/Plugins/Plugin_nJoy_SDL/Src/nJoy.cpp
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@ -29,73 +29,52 @@
//
//////////////////////////////////////////////////////////////////////////////////////////
////////////////////////
// Include
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
#include "nJoy.h"
//////////////////////////////////////////////////////////////////////////////////////////
// Variables
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// Rumble in windows
#define _CONTROLLER_STATE_H // avoid certain declarations in nJoy.h
FILE *pFile;
HINSTANCE nJoy_hInst = NULL;
CONTROLLER_INFO *joyinfo = 0;
CONTROLLER_STATE joystate[4];
CONTROLLER_MAPPING joysticks[4];
bool emulator_running = FALSE;
HWND m_hWnd; // Handle to window
// Handle to window
HWND m_hWnd;
#ifdef USE_RUMBLE_DINPUT_HACK
bool g_rumbleEnable = FALSE;
#endif
// Rumble in windows
// Rumble
#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;
extern int fd;
#endif
#if defined(HAVE_WX) && HAVE_WX
//////////////////////////////////////////////////////////////////////////////////////////
// wxWidgets
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
class wxDLLApp : public wxApp
{
bool OnInit()
#if defined(HAVE_WX) && HAVE_WX
class wxDLLApp : public wxApp
{
return true;
}
};
bool OnInit()
{
return true;
}
};
IMPLEMENT_APP_NO_MAIN(wxDLLApp)
WXDLLIMPEXP_BASE void wxSetInstance(HINSTANCE hInst);
IMPLEMENT_APP_NO_MAIN(wxDLLApp)
WXDLLIMPEXP_BASE void wxSetInstance(HINSTANCE hInst);
#endif
//////////////////////////////////////////////////////////////////////////////////////////
// DllMain
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
@ -181,10 +160,12 @@ void DllConfig(HWND _hParent)
}
LoadConfig(); // load settings
#if defined(HAVE_WX) && HAVE_WX
ConfigBox frame(NULL);
frame.ShowModal();
#endif
#if defined(HAVE_WX) && HAVE_WX
ConfigBox frame(NULL);
frame.ShowModal();
#endif
#endif
}
@ -242,7 +223,7 @@ void PAD_Shutdown()
SDL_Quit();
#ifdef _DEBUG
DEBUG_QUIT();
DEBUG_QUIT();
#endif
delete [] joyinfo;
@ -250,14 +231,15 @@ void PAD_Shutdown()
emulator_running = FALSE;
#ifdef _WIN32
#ifdef USE_RUMBLE_DINPUT_HACK
FreeDirectInput();
#endif
#ifdef USE_RUMBLE_DINPUT_HACK
FreeDirectInput();
#endif
#elif defined(__linux__)
close(fd);
close(fd);
#endif
}
// Set PAD status
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void PAD_GetStatus(u8 _numPAD, SPADStatus* _pPADStatus)
@ -265,10 +247,10 @@ void PAD_GetStatus(u8 _numPAD, SPADStatus* _pPADStatus)
if (!joysticks[_numPAD].enabled)
return;
// clear pad status
// Clear pad status
memset(_pPADStatus, 0, sizeof(SPADStatus));
// get pad status
// Get pad status
GetJoyState(_numPAD);
// Reset!
@ -287,10 +269,10 @@ void PAD_GetStatus(u8 _numPAD, SPADStatus* _pPADStatus)
// Adjust range
// The value returned by SDL_JoystickGetAxis is a signed integer (-32768 to 32768)
// The value used for the gamecube controller is an unsigned char (0 to 255)
int main_stick_x = (joystate[_numPAD].axis[CTL_MAIN_X]>>8);
int main_stick_y = -(joystate[_numPAD].axis[CTL_MAIN_Y]>>8);
int sub_stick_x = (joystate[_numPAD].axis[CTL_SUB_X]>>8);
int sub_stick_y = -(joystate[_numPAD].axis[CTL_SUB_Y]>>8);
int main_stick_x = (joystate[_numPAD].axis[CTL_MAIN_X] >> 8);
int main_stick_y = -(joystate[_numPAD].axis[CTL_MAIN_Y] >> 8);
int sub_stick_x = (joystate[_numPAD].axis[CTL_SUB_X] >> 8);
int sub_stick_y = -(joystate[_numPAD].axis[CTL_SUB_Y] >> 8);
// Quick fix
if (main_stick_x > 127)
@ -351,8 +333,8 @@ void PAD_GetStatus(u8 _numPAD, SPADStatus* _pPADStatus)
// Set D-pad
if (joysticks[_numPAD].controllertype == CTL_TYPE_JOYSTICK)
{
if (joystate[_numPAD].dpad == SDL_HAT_LEFTUP || joystate[_numPAD].dpad == SDL_HAT_UP || joystate[_numPAD].dpad == SDL_HAT_RIGHTUP ) _pPADStatus->button|=PAD_BUTTON_UP;
if (joystate[_numPAD].dpad == SDL_HAT_LEFTUP || joystate[_numPAD].dpad == SDL_HAT_LEFT || joystate[_numPAD].dpad == SDL_HAT_LEFTDOWN ) _pPADStatus->button|=PAD_BUTTON_LEFT;
if (joystate[_numPAD].dpad == SDL_HAT_LEFTUP || joystate[_numPAD].dpad == SDL_HAT_UP || joystate[_numPAD].dpad == SDL_HAT_RIGHTUP ) _pPADStatus->button|=PAD_BUTTON_UP;
if (joystate[_numPAD].dpad == SDL_HAT_LEFTUP || joystate[_numPAD].dpad == SDL_HAT_LEFT || joystate[_numPAD].dpad == SDL_HAT_LEFTDOWN ) _pPADStatus->button|=PAD_BUTTON_LEFT;
if (joystate[_numPAD].dpad == SDL_HAT_LEFTDOWN || joystate[_numPAD].dpad == SDL_HAT_DOWN || joystate[_numPAD].dpad == SDL_HAT_RIGHTDOWN ) _pPADStatus->button|=PAD_BUTTON_DOWN;
if (joystate[_numPAD].dpad == SDL_HAT_RIGHTUP || joystate[_numPAD].dpad == SDL_HAT_RIGHT || joystate[_numPAD].dpad == SDL_HAT_RIGHTDOWN ) _pPADStatus->button|=PAD_BUTTON_RIGHT;
}
@ -368,127 +350,15 @@ void PAD_GetStatus(u8 _numPAD, SPADStatus* _pPADStatus)
_pPADStatus->button|=PAD_BUTTON_RIGHT;
}
//
_pPADStatus->err = PAD_ERR_NONE;
#ifdef _WIN32
#ifdef USE_RUMBLE_DINPUT_HACK
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
// Use rumble
PAD_Use_Rumble(_numPAD, _pPADStatus);
}
// Set PAD rumble
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// (Stop=0, Rumble=1)
void PAD_Rumble(u8 _numPAD, unsigned int _uType, unsigned int _uStrength)
{
//if (_numPAD > 0)
// return;
// not supported by SDL
// So we need to use platform specific stuff
#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
}
// Set PAD attached pads
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
@ -510,13 +380,19 @@ unsigned int PAD_GetAttachedPads()
return connected;
}
//////////////////////////////////////////////////////////////////////////////////////////
// Custom Functions
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void ReadButton(int controller, int button) {
// Read buttons status. Called from GetJoyState().
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void ReadButton(int controller, int button)
{
int ctl_button = joysticks[controller].buttons[button];
if (ctl_button < joyinfo[joysticks[controller].ID].NumButtons) {
if (ctl_button < joyinfo[joysticks[controller].ID].NumButtons)
{
joystate[controller].buttons[button] = SDL_JoystickGetButton(joystate[controller].joy, ctl_button);
}
}
@ -540,10 +416,14 @@ void GetJoyState(int controller)
ReadButton(controller, CTL_Y_BUTTON);
ReadButton(controller, CTL_Z_TRIGGER);
ReadButton(controller, CTL_START);
PanicAlert("%i", CTL_A_BUTTON);
//
if (joysticks[controller].halfpress < joyinfo[controller].NumButtons)
joystate[controller].halfpress = SDL_JoystickGetButton(joystate[controller].joy, joysticks[controller].halfpress);
// Check if we have an analog or digital joypad
if (joysticks[controller].controllertype == CTL_TYPE_JOYSTICK)
{
joystate[controller].dpad = SDL_JoystickGetHat(joystate[controller].joy, joysticks[controller].dpad);
@ -578,6 +458,7 @@ int Search_Devices()
joyinfo = new CONTROLLER_INFO [numjoy];
}
// Warn the user of no joysticks are detected
if (numjoy == 0)
{
#ifdef _WIN32
@ -619,305 +500,3 @@ int Search_Devices()
return numjoy;
}
// Enable output log
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void DEBUG_INIT()
{
if (pFile)
return;
#ifdef _WIN32
char dateStr [9];
_strdate( dateStr);
char timeStr [9];
_strtime( timeStr );
#endif
pFile = fopen ("nJoy-debug.txt","wt");
fprintf(pFile, "nJoy v"INPUT_VERSION" Debug\n");
#ifdef _WIN32
fprintf(pFile, "Date: %s\nTime: %s\n", dateStr, timeStr);
#endif
fprintf(pFile, "<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\n");
}
// Disable output log
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void DEBUG_QUIT()
{
if (!pFile)
return;
#ifdef _WIN32
char timeStr [9];
_strtime(timeStr);
fprintf(pFile, "_______________\n");
fprintf(pFile, "Time: %s", timeStr);
#endif
fclose(pFile);
}
// Save settings to file
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void SaveConfig()
{
IniFile file;
file.Load("nJoy.ini");
for (int i = 0; i < 4; i++)
{
char SectionName[32];
sprintf(SectionName, "PAD%i", i+1);
file.Set(SectionName, "l_shoulder", joysticks[i].buttons[CTL_L_SHOULDER]);
file.Set(SectionName, "r_shoulder", joysticks[i].buttons[CTL_R_SHOULDER]);
file.Set(SectionName, "a_button", joysticks[i].buttons[CTL_A_BUTTON]);
file.Set(SectionName, "b_button", joysticks[i].buttons[CTL_B_BUTTON]);
file.Set(SectionName, "x_button", joysticks[i].buttons[CTL_X_BUTTON]);
file.Set(SectionName, "y_button", joysticks[i].buttons[CTL_Y_BUTTON]);
file.Set(SectionName, "z_trigger", joysticks[i].buttons[CTL_Z_TRIGGER]);
file.Set(SectionName, "start_button", joysticks[i].buttons[CTL_START]);
file.Set(SectionName, "dpad", joysticks[i].dpad);
file.Set(SectionName, "dpad_up", joysticks[i].dpad2[CTL_D_PAD_UP]);
file.Set(SectionName, "dpad_down", joysticks[i].dpad2[CTL_D_PAD_DOWN]);
file.Set(SectionName, "dpad_left", joysticks[i].dpad2[CTL_D_PAD_LEFT]);
file.Set(SectionName, "dpad_right", joysticks[i].dpad2[CTL_D_PAD_RIGHT]);
file.Set(SectionName, "main_x", joysticks[i].axis[CTL_MAIN_X]);
file.Set(SectionName, "main_y", joysticks[i].axis[CTL_MAIN_Y]);
file.Set(SectionName, "sub_x", joysticks[i].axis[CTL_SUB_X]);
file.Set(SectionName, "sub_y", joysticks[i].axis[CTL_SUB_Y]);
file.Set(SectionName, "enabled", joysticks[i].enabled);
file.Set(SectionName, "deadzone", joysticks[i].deadzone);
file.Set(SectionName, "halfpress", joysticks[i].halfpress);
file.Set(SectionName, "joy_id", joysticks[i].ID);
file.Set(SectionName, "controllertype", joysticks[i].controllertype);
file.Set(SectionName, "eventnum", joysticks[i].eventnum);
}
file.Save("nJoy.ini");
}
// Load settings from file
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void LoadConfig()
{
IniFile file;
file.Load("nJoy.ini");
for (int i = 0; i < 4; i++)
{
char SectionName[32];
sprintf(SectionName, "PAD%i", i+1);
file.Get(SectionName, "l_shoulder", &joysticks[i].buttons[CTL_L_SHOULDER], 4);
file.Get(SectionName, "r_shoulder", &joysticks[i].buttons[CTL_R_SHOULDER], 5);
file.Get(SectionName, "a_button", &joysticks[i].buttons[CTL_A_BUTTON], 0);
file.Get(SectionName, "b_button", &joysticks[i].buttons[CTL_B_BUTTON], 1);
file.Get(SectionName, "x_button", &joysticks[i].buttons[CTL_X_BUTTON], 3);
file.Get(SectionName, "y_button", &joysticks[i].buttons[CTL_Y_BUTTON], 2);
file.Get(SectionName, "z_trigger", &joysticks[i].buttons[CTL_Z_TRIGGER], 7);
file.Get(SectionName, "start_button", &joysticks[i].buttons[CTL_START], 9);
file.Get(SectionName, "dpad", &joysticks[i].dpad, 0);
file.Get(SectionName, "dpad_up", &joysticks[i].dpad2[CTL_D_PAD_UP], 0);
file.Get(SectionName, "dpad_down", &joysticks[i].dpad2[CTL_D_PAD_DOWN], 0);
file.Get(SectionName, "dpad_left", &joysticks[i].dpad2[CTL_D_PAD_LEFT], 0);
file.Get(SectionName, "dpad_right", &joysticks[i].dpad2[CTL_D_PAD_RIGHT], 0);
file.Get(SectionName, "main_x", &joysticks[i].axis[CTL_MAIN_X], 0);
file.Get(SectionName, "main_y", &joysticks[i].axis[CTL_MAIN_Y], 1);
file.Get(SectionName, "sub_x", &joysticks[i].axis[CTL_SUB_X], 2);
file.Get(SectionName, "sub_y", &joysticks[i].axis[CTL_SUB_Y], 3);
file.Get(SectionName, "enabled", &joysticks[i].enabled, 1);
file.Get(SectionName, "deadzone", &joysticks[i].deadzone, 9);
file.Get(SectionName, "halfpress", &joysticks[i].halfpress, 6);
file.Get(SectionName, "joy_id", &joysticks[i].ID, 0);
file.Get(SectionName, "controllertype", &joysticks[i].controllertype, 0);
file.Get(SectionName, "eventnum", &joysticks[i].eventnum, 0);
}
}
#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