/* 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 s_vjoysticks; static u32 s_bSDLInit = false; void UpdateJoysticks() { vector::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& vjoysticks) { if (!s_bSDLInit) { if (SDL_Init(SDL_INIT_JOYSTICK) < 0) return; SDL_JoystickEventState(SDL_QUERY); s_bSDLInit = true; } vector::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 < MAX_KEYS; ++i) { KeyType k = type_of_key(pad,i); if (k == PAD_JOYSTICK || k == PAD_JOYBUTTONS) { joyid = key_to_joystick_id(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 < MAX_KEYS; ++i) { KeyType k = type_of_key(pad,i); if (k == PAD_JOYBUTTONS) { set_key(pad, i, button_to_key(_id, key_to_button(pad,i))); } else if (k == PAD_JOYSTICK) { set_key(pad, i, joystick_to_key(_id, key_to_button(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::PollPOV(int &axis_id, bool &sign, 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) { axis_id = i; sign = (value < 0); pkey = pov_to_key(GetId(), sign, i); return true; } } } return false; } bool JoystickInfo::PollAxes(int &axis_id, 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) { axis_id = i; pkey = joystick_to_key(GetId(), i); return true; } } } return false; } bool JoystickInfo::PollHats(int &jbutton, int &dir, u32 &pkey) { for (int i = 0; i < GetNumHats(); ++i) { int value = SDL_JoystickGetHat(GetJoy(), i); if ((value != GetHatState(i)) && (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; } } } return false; } int JoystickInfo::GetAxisFromKey(int pad, int index) { return SDL_JoystickGetAxis(GetJoy(), key_to_axis(pad, index)); }