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dolphin/Source/Plugins/Plugin_GCPad/Src/GCPad.cpp

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// Project description
// -------------------
// Name: nJoy
// Description: A Dolphin Compatible Input Plugin
//
// Author: Falcon4ever (nJoy@falcon4ever.com)
// Site: www.multigesture.net
// Copyright (C) 2003 Dolphin Project.
//
// Copyright (C) 2003 Dolphin Project.
// 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 "GCPad.h"
#include "Config.h"
#include "LogManager.h"
#if defined(HAVE_WX) && HAVE_WX
#include "ConfigBox.h"
#endif
#ifdef _WIN32
#include "XInput.h"
#endif
// Declare config window so that we can write debugging info to it from functions in this file
#if defined(HAVE_WX) && HAVE_WX
GCPadConfigDialog* m_ConfigFrame = NULL;
#endif
// Variables
// ---------
bool g_SearchDeviceDone = false;
CONTROLLER_MAPPING_GC GCMapping[4];
std::vector<InputCommon::CONTROLLER_INFO> joyinfo;
int NumPads = 0, NumGoodPads = 0, g_ID = 0;
#ifdef _WIN32
HWND m_hWnd = NULL; // Handle to window
#endif
#if defined(HAVE_X11) && HAVE_X11
Display* GCdisplay;
#endif
SPADInitialize *g_PADInitialize = NULL;
PLUGIN_GLOBALS* globals = NULL;
// Standard crap to make wxWidgets happy
#ifdef _WIN32
HINSTANCE g_hInstance;
#if defined(HAVE_WX) && HAVE_WX
class wxDLLApp : public wxApp
{
bool OnInit()
{
return true;
}
};
IMPLEMENT_APP_NO_MAIN(wxDLLApp)
WXDLLIMPEXP_BASE void wxSetInstance(HINSTANCE hInst);
#endif
BOOL APIENTRY DllMain(HINSTANCE hinstDLL, // DLL module handle
DWORD dwReason, // reason called
LPVOID lpvReserved) // reserved
{
switch (dwReason)
{
case DLL_PROCESS_ATTACH:
{
#if defined(HAVE_WX) && HAVE_WX
wxSetInstance((HINSTANCE)hinstDLL);
wxInitialize();
#endif
}
break;
case DLL_PROCESS_DETACH:
#if defined(HAVE_WX) && HAVE_WX
wxUninitialize();
#endif
break;
}
g_hInstance = hinstDLL;
return TRUE;
}
#endif
#if defined(HAVE_WX) && HAVE_WX
wxWindow* GetParentedWxWindow(HWND Parent)
{
#ifdef _WIN32
wxSetInstance((HINSTANCE)g_hInstance);
#endif
wxWindow *win = new wxWindow();
#ifdef _WIN32
win->SetHWND((WXHWND)Parent);
win->AdoptAttributesFromHWND();
#endif
return win;
}
#endif
// Input Plugin Functions (from spec's)
// ------------------------------------
// Get properties of plugin
// ------------------------
void GetDllInfo(PLUGIN_INFO* _PluginInfo)
{
_PluginInfo->Version = 0x0100;
_PluginInfo->Type = PLUGIN_TYPE_PAD;
#ifdef DEBUGFAST
sprintf(_PluginInfo->Name, "Dolphin GCPad Plugin (DebugFast)");
#else
#ifdef _DEBUG
sprintf(_PluginInfo->Name, "Dolphin GCPad Plugin (Debug)");
#else
sprintf(_PluginInfo->Name, "Dolphin GCPad Plugin");
#endif
#endif
}
void SetDllGlobals(PLUGIN_GLOBALS* _pPluginGlobals)
{
globals = _pPluginGlobals;
LogManager::SetInstance((LogManager *)globals->logManager);
}
// Call config dialog
// ------------------
void DllConfig(HWND _hParent)
{
if (!g_SearchDeviceDone)
{
g_Config.Load(); // load settings
// Init Joystick + Haptic (force feedback) subsystem on SDL 1.3
// Populate joyinfo for all attached devices
Search_Devices(joyinfo, NumPads, NumGoodPads);
g_SearchDeviceDone = true;
}
#if defined(HAVE_WX) && HAVE_WX
wxWindow *frame = GetParentedWxWindow(_hParent);
m_ConfigFrame = new GCPadConfigDialog(frame);
#ifdef _WIN32
frame->Disable();
m_ConfigFrame->ShowModal();
frame->Enable();
#else
m_ConfigFrame->ShowModal();
#endif
#ifdef _WIN32
frame->SetFocus();
frame->SetHWND(NULL);
#endif
m_ConfigFrame->Destroy();
m_ConfigFrame = NULL;
frame->Destroy();
#endif
}
void DllDebugger(HWND _hParent, bool Show)
{
}
// Init PAD (start emulation)
// --------------------------
void Initialize(void *init)
{
INFO_LOG(PAD, "Initialize: %i", SDL_WasInit(0));
g_PADInitialize = (SPADInitialize*)init;
#ifdef _WIN32
m_hWnd = (HWND)g_PADInitialize->hWnd;
#endif
#if defined(HAVE_X11) && HAVE_X11
GCdisplay = (Display*)g_PADInitialize->hWnd;
#endif
if (!g_SearchDeviceDone)
{
g_Config.Load(); // load settings
// Populate joyinfo for all attached devices
Search_Devices(joyinfo, NumPads, NumGoodPads);
g_SearchDeviceDone = true;
}
}
// Shutdown PAD (stop emulation)
// -----------------------------
void Shutdown()
{
INFO_LOG(PAD, "Shutdown: %i", SDL_WasInit(0));
Close_Devices();
// Finally close SDL
if (SDL_WasInit(0))
{
SDL_Quit();
}
// Remove the pointer to the initialize data
g_PADInitialize = NULL;
g_SearchDeviceDone = false;
}
// Save state
// --------------
void DoState(unsigned char **ptr, int mode)
{
#ifdef RERECORDING
Recording::DoState(ptr, mode);
#endif
}
void EmuStateChange(PLUGIN_EMUSTATE newState)
{
}
// Set buttons status from keyboard input. Currently this is done from wxWidgets in the main application.
// --------------
void PAD_Input(u16 _Key, u8 _UpDown)
{
}
// Set PAD status
// --------------
// Called from: SI_DeviceGCController.cpp
// Function: Gives the current pad status to the Core
void PAD_GetStatus(u8 _numPAD, SPADStatus* _pPADStatus)
{
// Check if all is okay
if (_pPADStatus == NULL) return;
// Clear pad
memset(_pPADStatus, 0, sizeof(SPADStatus));
const int base = 0x80;
_pPADStatus->stickX = base;
_pPADStatus->stickY = base;
_pPADStatus->substickX = base;
_pPADStatus->substickY = base;
_pPADStatus->button |= PAD_USE_ORIGIN;
_pPADStatus->err = PAD_ERR_NONE;
// Check that Dolphin is in focus, otherwise don't update the pad status
if (!IsFocus()) return;
g_ID = _numPAD;
if (NumGoodPads && NumPads > GCMapping[_numPAD].ID)
UpdatePadState(GCMapping[_numPAD]);
if (IsKey(EGC_A))
{
_pPADStatus->button |= PAD_BUTTON_A;
_pPADStatus->analogA = DEF_BUTTON_FULL;
}
if (IsKey(EGC_B))
{
_pPADStatus->button |= PAD_BUTTON_B;
_pPADStatus->analogB = DEF_BUTTON_FULL;
}
if (IsKey(EGC_X)) _pPADStatus->button |= PAD_BUTTON_X;
if (IsKey(EGC_Y)) _pPADStatus->button |= PAD_BUTTON_Y;
if (IsKey(EGC_Z)) _pPADStatus->button |= PAD_TRIGGER_Z;
if (IsKey(EGC_START)) _pPADStatus->button |= PAD_BUTTON_START;
if (IsKey(EGC_DPAD_UP)) _pPADStatus->button |= PAD_BUTTON_UP;
if (IsKey(EGC_DPAD_DOWN)) _pPADStatus->button |= PAD_BUTTON_DOWN;
if (IsKey(EGC_DPAD_LEFT)) _pPADStatus->button |= PAD_BUTTON_LEFT;
if (IsKey(EGC_DPAD_RIGHT)) _pPADStatus->button |= PAD_BUTTON_RIGHT;
if (GCMapping[_numPAD].Stick.Main == FROM_KEYBOARD)
{
int iMagnitude = DEF_STICK_FULL;
bool bUp = false;
bool bDown = false;
bool bLeft = false;
bool bRight = false;
if (IsKey(EGC_STICK_SEMI)) iMagnitude = GCMapping[_numPAD].Pressure.Main;
if (IsKey(EGC_STICK_UP)) bUp = true;
else if (IsKey(EGC_STICK_DOWN)) bDown = true;
if (IsKey(EGC_STICK_LEFT)) bLeft = true;
else if (IsKey(EGC_STICK_RIGHT)) bRight = true;
EmulateAnalogStick(_pPADStatus->stickX, _pPADStatus->stickY, bUp, bDown, bLeft, bRight, iMagnitude);
}
else if (GCMapping[_numPAD].Stick.Main == FROM_ANALOG1)
{
_pPADStatus->stickX = GCMapping[_numPAD].AxisState.Lx;
// Y-axis is inverted
_pPADStatus->stickY = 0xFF - (u8)GCMapping[_numPAD].AxisState.Ly;
}
else if (GCMapping[_numPAD].Stick.Main == FROM_ANALOG2)
{
_pPADStatus->stickX = GCMapping[_numPAD].AxisState.Rx;
// Y-axis is inverted
_pPADStatus->stickY = 0xFF - (u8)GCMapping[_numPAD].AxisState.Ry;
}
else
{
_pPADStatus->stickX = GCMapping[_numPAD].AxisState.Tl;
_pPADStatus->stickY = GCMapping[_numPAD].AxisState.Tr;
}
if (GCMapping[_numPAD].Stick.Sub == FROM_KEYBOARD)
{
int iMagnitude = DEF_STICK_FULL;
bool bUp = false;
bool bDown = false;
bool bLeft = false;
bool bRight = false;
if (IsKey(EGC_CSTICK_SEMI)) iMagnitude = GCMapping[_numPAD].Pressure.Sub;
if (IsKey(EGC_CSTICK_UP)) bUp = true;
else if (IsKey(EGC_CSTICK_DOWN)) bDown = true;
if (IsKey(EGC_CSTICK_LEFT)) bLeft = true;
else if (IsKey(EGC_CSTICK_RIGHT)) bRight = true;
EmulateAnalogStick(_pPADStatus->substickX, _pPADStatus->substickY, bUp, bDown, bLeft, bRight, iMagnitude);
}
else if (GCMapping[_numPAD].Stick.Sub == FROM_ANALOG1)
{
_pPADStatus->substickX = GCMapping[_numPAD].AxisState.Lx;
// Y-axis is inverted
_pPADStatus->substickY = 0xFF - (u8)GCMapping[_numPAD].AxisState.Ly;
}
else if (GCMapping[_numPAD].Stick.Sub == FROM_ANALOG2)
{
_pPADStatus->substickX = GCMapping[_numPAD].AxisState.Rx;
// Y-axis is inverted
_pPADStatus->substickY = 0xFF - (u8)GCMapping[_numPAD].AxisState.Ry;
}
else
{
_pPADStatus->substickX = GCMapping[_numPAD].AxisState.Tl;
_pPADStatus->substickY = GCMapping[_numPAD].AxisState.Tr;
}
if (GCMapping[_numPAD].Stick.Shoulder == FROM_KEYBOARD)
{
if (IsKey(EGC_TGR_L))
{
_pPADStatus->triggerLeft = DEF_TRIGGER_FULL;
_pPADStatus->button |= PAD_TRIGGER_L;
}
else if (IsKey(EGC_TGR_SEMI_L))
{
_pPADStatus->triggerLeft = GCMapping[_numPAD].Pressure.Shoulder;
if (_pPADStatus->triggerLeft > DEF_TRIGGER_THRESHOLD)
_pPADStatus->button |= PAD_TRIGGER_L;
}
if (IsKey(EGC_TGR_R))
{
_pPADStatus->triggerRight = DEF_TRIGGER_FULL;
_pPADStatus->button |= PAD_TRIGGER_R;
}
else if (IsKey(EGC_TGR_SEMI_R))
{
_pPADStatus->triggerRight = GCMapping[_numPAD].Pressure.Shoulder;
if (_pPADStatus->triggerRight > DEF_TRIGGER_THRESHOLD)
_pPADStatus->button |= PAD_TRIGGER_R;
}
}
else if (GCMapping[_numPAD].Stick.Shoulder == FROM_ANALOG1)
{
_pPADStatus->triggerLeft = GCMapping[_numPAD].AxisState.Lx;
_pPADStatus->triggerRight = GCMapping[_numPAD].AxisState.Ly;
EmulateAnalogTrigger(_pPADStatus->triggerLeft, _pPADStatus->triggerRight);
if (_pPADStatus->triggerLeft > DEF_TRIGGER_THRESHOLD)
_pPADStatus->button |= PAD_TRIGGER_L;
if (_pPADStatus->triggerRight > DEF_TRIGGER_THRESHOLD)
_pPADStatus->button |= PAD_TRIGGER_R;
}
else if (GCMapping[_numPAD].Stick.Shoulder == FROM_ANALOG2)
{
_pPADStatus->triggerLeft = GCMapping[_numPAD].AxisState.Rx;
_pPADStatus->triggerRight = GCMapping[_numPAD].AxisState.Ry;
EmulateAnalogTrigger(_pPADStatus->triggerLeft, _pPADStatus->triggerRight);
if (_pPADStatus->triggerLeft > DEF_TRIGGER_THRESHOLD)
_pPADStatus->button |= PAD_TRIGGER_L;
if (_pPADStatus->triggerRight > DEF_TRIGGER_THRESHOLD)
_pPADStatus->button |= PAD_TRIGGER_R;
}
else
{
_pPADStatus->triggerLeft = GCMapping[_numPAD].AxisState.Tl;
_pPADStatus->triggerRight = GCMapping[_numPAD].AxisState.Tr;
EmulateAnalogTrigger(_pPADStatus->triggerLeft, _pPADStatus->triggerRight);
if (_pPADStatus->triggerLeft > DEF_TRIGGER_THRESHOLD)
_pPADStatus->button |= PAD_TRIGGER_L;
if (_pPADStatus->triggerRight > DEF_TRIGGER_THRESHOLD)
_pPADStatus->button |= PAD_TRIGGER_R;
}
}
//******************************************************************************
// Supporting functions
//******************************************************************************
// for same displacement should be sqrt(2)/2 (in theory)
// 3/4 = 0.75 is a little faster than sqrt(2)/2 = 0.7071...
// In SMS, 17/20 = 0.85 is perfect; in WW, 7/10 = 0.70 is closer.
#define DIAGONAL_SCALE 0.70710678
void EmulateAnalogStick(unsigned char &stickX, unsigned char &stickY, bool buttonUp, bool buttonDown, bool buttonLeft, bool buttonRight, int magnitude)
{
int mainX = 0;
int mainY = 0;
if (buttonUp)
mainY = magnitude;
else if (buttonDown)
mainY = -magnitude;
if (buttonLeft)
mainX = -magnitude;
else if (buttonRight)
mainX = magnitude;
if ((mainX == 0) || (mainY == 0))
{
stickX += mainX;
stickY += mainY;
}
else
{
stickX += mainX * DIAGONAL_SCALE;
stickY += mainY * DIAGONAL_SCALE;
}
}
void EmulateAnalogTrigger(unsigned char &trL, unsigned char &trR)
{
if (GCMapping[g_ID].TriggerType == InputCommon::CTL_TRIGGER_SDL)
{
int triggerL = abs((int)trL - 0x80) * 2;
int triggerR = abs((int)trR - 0x80) * 2;
trL = (triggerL > 0xFF) ? 0xFF : triggerL;
trR = (triggerR > 0xFF) ? 0xFF : triggerR;
}
}
void Close_Devices()
{
PAD_RumbleClose();
if (SDL_WasInit(0))
{
for (int i = 0; i < NumPads; i++)
{
if (joyinfo.at(i).joy)
{
if(SDL_JoystickOpened(i))
{
INFO_LOG(WIIMOTE, "Shut down Joypad: %i", i);
SDL_JoystickClose(joyinfo.at(i).joy);
}
}
}
}
for (int i = 0; i < 4; i++)
GCMapping[i].joy = NULL;
// Clear the physical device info
joyinfo.clear();
NumPads = 0;
NumGoodPads = 0;
}
// Search for SDL devices
// ----------------
bool Search_Devices(std::vector<InputCommon::CONTROLLER_INFO> &_joyinfo, int &_NumPads, int &_NumGoodPads)
{
// Close opened devices first
Close_Devices();
bool success = InputCommon::SearchDevices(_joyinfo, _NumPads, _NumGoodPads);
if (_NumGoodPads == 0)
return false;
for (int i = 0; i < 4; i++)
{
if (_NumPads > GCMapping[i].ID)
if(joyinfo.at(GCMapping[i].ID).Good)
{
GCMapping[i].joy = joyinfo.at(GCMapping[i].ID).joy;
#ifdef _WIN32
XINPUT_STATE xstate;
DWORD xresult = XInputGetState(GCMapping[i].ID, &xstate);
if (xresult == ERROR_SUCCESS)
GCMapping[i].TriggerType = InputCommon::CTL_TRIGGER_XINPUT;
#endif
}
}
return success;
}
void GetAxisState(CONTROLLER_MAPPING_GC &_GCMapping)
{
// Update the gamepad status
SDL_JoystickUpdate();
// Update axis states. It doesn't hurt much if we happen to ask for nonexisting axises here.
_GCMapping.AxisState.Lx = SDL_JoystickGetAxis(_GCMapping.joy, _GCMapping.AxisMapping.Lx);
_GCMapping.AxisState.Ly = SDL_JoystickGetAxis(_GCMapping.joy, _GCMapping.AxisMapping.Ly);
_GCMapping.AxisState.Rx = SDL_JoystickGetAxis(_GCMapping.joy, _GCMapping.AxisMapping.Rx);
_GCMapping.AxisState.Ry = SDL_JoystickGetAxis(_GCMapping.joy, _GCMapping.AxisMapping.Ry);
// Update the analog trigger axis values
#ifdef _WIN32
if (_GCMapping.TriggerType == InputCommon::CTL_TRIGGER_SDL)
{
#endif
// If we are using SDL analog triggers the buttons have to be mapped as 1000 or up, otherwise they are not used
// We must also check that we are not asking for a negative axis number because SDL_JoystickGetAxis() has
// no good way of handling that
if ((_GCMapping.AxisMapping.Tl - 1000) >= 0)
_GCMapping.AxisState.Tl = SDL_JoystickGetAxis(_GCMapping.joy, _GCMapping.AxisMapping.Tl - 1000);
if ((_GCMapping.AxisMapping.Tr - 1000) >= 0)
_GCMapping.AxisState.Tr = SDL_JoystickGetAxis(_GCMapping.joy, _GCMapping.AxisMapping.Tr - 1000);
#ifdef _WIN32
}
else
{
_GCMapping.AxisState.Tl = XInput::GetXI(_GCMapping.ID, _GCMapping.AxisMapping.Tl - 1000);
_GCMapping.AxisState.Tr = XInput::GetXI(_GCMapping.ID, _GCMapping.AxisMapping.Tr - 1000);
}
#endif
}
void UpdatePadState(CONTROLLER_MAPPING_GC &_GCiMapping)
{
// Return if we have no pads
if (NumGoodPads == 0) return;
GetAxisState(_GCiMapping);
int &Lx = _GCiMapping.AxisState.Lx;
int &Ly = _GCiMapping.AxisState.Ly;
int &Rx = _GCiMapping.AxisState.Rx;
int &Ry = _GCiMapping.AxisState.Ry;
int &Tl = _GCiMapping.AxisState.Tl;
int &Tr = _GCiMapping.AxisState.Tr;
// Check the circle to square option
if(_GCiMapping.bSquare2Circle)
{
InputCommon::Square2Circle(Lx, Ly, _GCiMapping.Diagonal, false);
InputCommon::Square2Circle(Rx, Ry, _GCiMapping.Diagonal, false);
}
// Dead zone adjustment
float DeadZoneLeft = (float)_GCiMapping.DeadZoneL / 100.0f;
float DeadZoneRight = (float)_GCiMapping.DeadZoneR / 100.0f;
if (InputCommon::IsDeadZone(DeadZoneLeft, Lx, Ly))
{
Lx = 0;
Ly = 0;
}
if (InputCommon::IsDeadZone(DeadZoneRight, Rx, Ry))
{
Rx = 0;
Ry = 0;
}
// Downsize the values from 0x8000 to 0x80
Lx = InputCommon::Pad_Convert(Lx);
Ly = InputCommon::Pad_Convert(Ly);
Rx = InputCommon::Pad_Convert(Rx);
Ry = InputCommon::Pad_Convert(Ry);
// The XInput range is already 0 to 0x80
if (_GCiMapping.TriggerType == InputCommon::CTL_TRIGGER_SDL)
{
Tl = InputCommon::Pad_Convert(Tl);
Tr = InputCommon::Pad_Convert(Tr);
}
}
// Multi System Input Status Check
bool IsKey(int Key)
{
int Ret = NULL;
int MapKey = GCMapping[g_ID].Button[Key];
#ifdef _WIN32
if (MapKey < 256)
{
Ret = GetAsyncKeyState(MapKey); // Keyboard (Windows)
}
else if (MapKey < 0x1100)
#elif defined HAVE_X11 && HAVE_X11
if (MapKey < 256 || MapKey > 0xf000)
{
char keys[32];
KeyCode keyCode;
XQueryKeymap(GCdisplay, keys);
keyCode = XKeysymToKeycode(GCdisplay, MapKey);
Ret = (keys[keyCode/8] & (1 << (keyCode%8))); // Keyboard (Linux)
}
else if (MapKey < 0x1100)
#else
if (MapKey < 0x1100)
#endif
{
Ret = SDL_JoystickGetButton(GCMapping[g_ID].joy, MapKey - 0x1000); // Pad button
}
else // Pad hat
{
u8 HatCode, HatKey;
HatCode = SDL_JoystickGetHat(GCMapping[g_ID].joy, (MapKey - 0x1100) / 0x0010);
HatKey = (MapKey - 0x1100) % 0x0010;
if (HatCode & HatKey)
Ret = HatKey;
}
return (Ret) ? true : false;
}
// Check if Dolphin is in focus
// ----------------
bool IsFocus()
{
return g_PADInitialize->pRendererHasFocus();
}
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