plugins/dfinput/sdljoy.c

   1 /*
   2  * Copyright (c) 2009, Wei Mingzhi <whistler@openoffice.org>.
   3  * All Rights Reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, see <http://www.gnu.org/licenses>.
  17  */
  18
  19 #include "pad.h"
  20
  21 void InitSDLJoy() {
  22         uint8_t                         i;
  23
  24         g.PadState[0].JoyKeyStatus = 0xFFFF;
  25         g.PadState[1].JoyKeyStatus = 0xFFFF;
  26
  27         for (i = 0; i < 2; i++) {
  28                 if (g.cfg.PadDef[i].DevNum >= 0) {
  29                         g.PadState[i].JoyDev = SDL_JoystickOpen(g.cfg.PadDef[i].DevNum);
  30                 } else {
  31                         g.PadState[i].JoyDev = NULL;
  32                 }
  33         }
  34
  35         SDL_JoystickEventState(SDL_IGNORE);
  36
  37         InitAnalog();
  38 }
  39
  40 void DestroySDLJoy() {
  41         uint8_t                         i;
  42
  43         if (SDL_WasInit(SDL_INIT_JOYSTICK)) {
  44                 for (i = 0; i < 2; i++) {
  45                         if (g.PadState[i].JoyDev != NULL) {
  46                                 SDL_JoystickClose(g.PadState[i].JoyDev);
  47                         }
  48                 }
  49         }
  50
  51         for (i = 0; i < 2; i++) {
  52                 g.PadState[i].JoyDev = NULL;
  53         }
  54 }
  55
  56 void CheckJoy() {
  57         uint8_t                         i, j, n;
  58
  59         SDL_JoystickUpdate();
  60
  61         for (i = 0; i < 2; i++) {
  62                 if (g.PadState[i].JoyDev == NULL) {
  63                         continue;
  64                 }
  65
  66                 for (j = 0; j < DKEY_TOTAL; j++) {
  67                         switch (g.cfg.PadDef[i].KeyDef[j].JoyEvType) {
  68                                 case AXIS:
  69                                         n = abs(g.cfg.PadDef[i].KeyDef[j].J.Axis) - 1;
  70
  71                                         if (g.cfg.PadDef[i].KeyDef[j].J.Axis > 0) {
  72                                                 if (SDL_JoystickGetAxis(g.PadState[i].JoyDev, n) > 16383) {
  73                                                         g.PadState[i].JoyKeyStatus &= ~(1 << j);
  74                                                 } else {
  75                                                         g.PadState[i].JoyKeyStatus |= (1 << j);
  76                                                 }
  77                                         } else if (g.cfg.PadDef[i].KeyDef[j].J.Axis < 0) {
  78                                                 if (SDL_JoystickGetAxis(g.PadState[i].JoyDev, n) < -16383) {
  79                                                         g.PadState[i].JoyKeyStatus &= ~(1 << j);
  80                                                 } else {
  81                                                         g.PadState[i].JoyKeyStatus |= (1 << j);
  82                                                 }
  83                                         }
  84                                         break;
  85
  86                                 case HAT:
  87                                         n = (g.cfg.PadDef[i].KeyDef[j].J.Hat >> 8);
  88
  89                                         if (SDL_JoystickGetHat(g.PadState[i].JoyDev, n) & (g.cfg.PadDef[i].KeyDef[j].J.Hat & 0xFF)) {
  90                                                 g.PadState[i].JoyKeyStatus &= ~(1 << j);
  91                                         } else {
  92                                                 g.PadState[i].JoyKeyStatus |= (1 << j);
  93                                         }
  94                                         break;
  95
  96                                 case BUTTON:
  97                                         if (SDL_JoystickGetButton(g.PadState[i].JoyDev, g.cfg.PadDef[i].KeyDef[j].J.Button)) {
  98                                                 g.PadState[i].JoyKeyStatus &= ~(1 << j);
  99                                         } else {
 100                                                 g.PadState[i].JoyKeyStatus |= (1 << j);
 101                                         }
 102                                         break;
 103
 104                                 default:
 105                                         break;
 106                         }
 107                 }
 108         }
 109
 110         CheckAnalog();
 111 }