pcsx2/plugins/onepad/joystick.cpp

289 lines
6.0 KiB
C++

/* OnePAD - author: arcum42(@gmail.com)
* Copyright (C) 2009
*
* Based on ZeroPAD, author zerofrog@gmail.com
* Copyright (C) 2006-2007
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "joystick.h"
//////////////////////////
// Joystick definitions //
//////////////////////////
int s_selectedpad = 0;
vector<JoystickInfo*> s_vjoysticks;
static u32 s_bSDLInit = false;
void UpdateJoysticks()
{
vector<JoystickInfo*>::iterator itjoy = s_vjoysticks.begin();
SDL_JoystickUpdate();
// Save everything in the vector s_vjoysticks.
while (itjoy != s_vjoysticks.end())
{
(*itjoy)->SaveState();
itjoy++;
}
}
const char *HatName(int value)
{
switch(value)
{
case SDL_HAT_CENTERED: return "SDL_HAT_CENTERED";
case SDL_HAT_UP: return "SDL_HAT_UP";
case SDL_HAT_RIGHT: return "SDL_HAT_RIGHT";
case SDL_HAT_DOWN: return "SDL_HAT_DOWN";
case SDL_HAT_LEFT: return "SDL_HAT_LEFT";
case SDL_HAT_RIGHTUP: return "SDL_HAT_RIGHTUP";
case SDL_HAT_RIGHTDOWN: return "SDL_HAT_RIGHTDOWN";
case SDL_HAT_LEFTUP: return "SDL_HAT_LEFTUP";
case SDL_HAT_LEFTDOWN: return "SDL_HAT_LEFTDOWN";
default: return "Unknown";
}
return "Unknown";
}
bool JoystickIdWithinBounds(int joyid)
{
return ((joyid >= 0) && (joyid < (int)s_vjoysticks.size()));
}
// opens handles to all possible joysticks
void JoystickInfo::EnumerateJoysticks(vector<JoystickInfo*>& vjoysticks)
{
if (!s_bSDLInit)
{
if (SDL_Init(SDL_INIT_JOYSTICK) < 0) return;
SDL_JoystickEventState(SDL_QUERY);
s_bSDLInit = true;
}
vector<JoystickInfo*>::iterator it = vjoysticks.begin();
// Delete everything in the vector vjoysticks.
while (it != vjoysticks.end())
{
delete *it;
it ++;
}
vjoysticks.resize(SDL_NumJoysticks());
for (int i = 0; i < (int)vjoysticks.size(); ++i)
{
vjoysticks[i] = new JoystickInfo();
vjoysticks[i]->Init(i, true);
}
// set the pads
for (int pad = 0; pad < 2; ++pad)
{
// select the right joystick id
int joyid = -1;
for (int i = 0; i < PADKEYS; ++i)
{
KeyType k = type_of_key(get_key(pad,i));
if (k == PAD_JOYSTICK || k == PAD_JOYBUTTONS)
{
joyid = key_to_joystick_id(get_key(pad,i));
break;
}
}
if ((joyid >= 0) && (joyid < (int)s_vjoysticks.size())) s_vjoysticks[joyid]->Assign(pad);
}
}
JoystickInfo::JoystickInfo()
{
joy = NULL;
_id = -1;
pad = -1;
axisrange = 0x7fff;
deadzone = 2000;
}
void JoystickInfo::Destroy()
{
if (joy != NULL)
{
if (SDL_JoystickOpened(_id)) SDL_JoystickClose(joy);
joy = NULL;
}
}
bool JoystickInfo::Init(int id, bool bStartThread)
{
Destroy();
_id = id;
joy = SDL_JoystickOpen(id);
if (joy == NULL)
{
PAD_LOG("failed to open joystick %d\n", id);
return false;
}
numaxes = SDL_JoystickNumAxes(joy);
numbuttons = SDL_JoystickNumButtons(joy);
numhats = SDL_JoystickNumHats(joy);
devname = SDL_JoystickName(id);
vaxisstate.resize(numaxes);
vbuttonstate.resize(numbuttons);
vhatstate.resize(numhats);
//PAD_LOG("There are %d buttons, %d axises, and %d hats.\n", numbuttons, numaxes, numhats);
return true;
}
// assigns a joystick to a pad
void JoystickInfo::Assign(int newpad)
{
if (pad == newpad) return;
pad = newpad;
if (pad >= 0)
{
for (int i = 0; i < PADKEYS; ++i)
{
KeyType k = type_of_key(get_key(pad,i));
if (k == PAD_JOYBUTTONS)
{
set_key(pad, i, button_to_key(_id, key_to_button(get_key(pad,i))));
}
else if (k == PAD_JOYSTICK)
{
set_key(pad, i, joystick_to_key(_id, key_to_button(get_key(pad,i))));
}
}
}
}
void JoystickInfo::SaveState()
{
for (int i = 0; i < numbuttons; ++i)
SetButtonState(i, SDL_JoystickGetButton(joy, i));
for (int i = 0; i < numaxes; ++i)
SetAxisState(i, SDL_JoystickGetAxis(joy, i));
for (int i = 0; i < numhats; ++i)
SetHatState(i, SDL_JoystickGetHat(joy, i));
}
void JoystickInfo::TestForce()
{
}
bool JoystickInfo::PollButtons(int &jbutton, u32 &pkey)
{
// MAKE sure to look for changes in the state!!
for (int i = 0; i < GetNumButtons(); ++i)
{
int but = SDL_JoystickGetButton(GetJoy(), i);
if (but != GetButtonState(i))
{
if (!but) // released, we don't really want this
{
SetButtonState(i, 0);
break;
}
pkey = button_to_key(GetId(), i);
jbutton = i;
return true;
}
}
return false;
}
bool JoystickInfo::PollAxes(bool pov, int &jbutton, bool &negative, u32 &pkey)
{
for (int i = 0; i < GetNumAxes(); ++i)
{
int value = SDL_JoystickGetAxis(GetJoy(), i);
if (value != GetAxisState(i))
{
PAD_LOG("Change in joystick %d: %d.\n", i, value);
if (abs(value) <= GetAxisState(i)) // we don't want this
{
// released, we don't really want this
SetAxisState(i, value);
break;
}
if (abs(value) > 0x3fff)
{
jbutton = i;
if (pov)
{
negative = (value < 0);
pkey = pov_to_key(GetId(), negative, i);
}
else // axis
{
pkey = joystick_to_key(GetId(), i);
}
return true;
}
}
}
return false;
}
bool JoystickInfo::PollHats(int &jbutton, int &dir, u32 &pkey)
{
#ifdef EXPERIMENTAL_POV_CODE
for (int i = 0; i < GetNumHats(); ++i)
{
int value = SDL_JoystickGetHat(GetJoy(), i);
if (value != SDL_HAT_CENTERED)
{
switch (value)
{
case SDL_HAT_UP:
case SDL_HAT_RIGHT:
case SDL_HAT_DOWN:
case SDL_HAT_LEFT:
pkey = hat_to_key(GetId(), value, i);
jbutton = i;
dir = value;
PAD_LOG("Hat Pressed!");
return true;
default:
break;
}
}
}
#endif
return false;
}