drivers/gp2x/input.c

   1 /* FCE Ultra - NES/Famicom Emulator
   2  *
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  */
  17
  18 #include "../../state.h"
  19 #include "../../general.h"
  20 #include "../../input.h"
  21
  22 /* UsrInputType[] is user-specified.  InputType[] is current
  23        (game loading can override user settings)
  24 */
  25 static int UsrInputType[2]={SI_GAMEPAD,SI_GAMEPAD};
  26 static int UsrInputTypeFC={SI_NONE};
  27
  28 static int InputType[2];
  29 static int InputTypeFC;
  30
  31 static uint32 JSreturn;
  32
  33 static int powerpadsc[2][12];
  34 static int powerpadside=0;
  35
  36 static uint32 MouseData[3];
  37 static uint8 fkbkeys[0x48];
  38
  39 static uint32 combo_acts = 0, combo_keys = 0;
  40 static uint32 prev_emu_acts = 0;
  41
  42
  43 static void setsoundvol(int soundvolume)
  44 {
  45         int soundvolIndex;
  46         static char soundvolmeter[24];
  47
  48         // draw on screen :D
  49         gp2x_sound_volume(soundvolume, soundvolume);
  50         int meterval=soundvolume/5;
  51         for (soundvolIndex = 0; soundvolIndex < 20; soundvolIndex++)
  52         {
  53                 if (soundvolIndex < meterval)
  54                 {
  55                         soundvolmeter[soundvolIndex]='*';
  56                 }
  57                 else
  58                 {
  59                         soundvolmeter[soundvolIndex]='_';
  60                 }
  61         }
  62         soundvolmeter[20]=0;
  63         FCEU_DispMessage("|%s|", soundvolmeter);
  64 }
  65
  66
  67 static void do_emu_acts(uint32 acts)
  68 {
  69         uint32 actsc = acts;
  70         acts &= acts ^ prev_emu_acts;
  71         prev_emu_acts = actsc;
  72
  73         if (acts & (3 << 30))
  74         {
  75                 if (acts & (1 << 30))
  76                 {
  77                         FCEUI_LoadState();
  78                 }
  79                 else
  80                 {
  81                         FCEUI_SaveState();
  82                 }
  83         }
  84         else if (acts & (3 << 28)) // state slot next/prev
  85         {
  86                 FILE *st;
  87                 char *fname;
  88
  89                 CurrentState += (acts & (1 << 29)) ? 1 :  -1;
  90                 if (CurrentState > 9) CurrentState = 0;
  91                 if (CurrentState < 0) CurrentState = 9;
  92
  93                 fname = FCEU_MakeFName(FCEUMKF_STATE,CurrentState,0);
  94                 st=fopen(fname,"rb");
  95                 free(fname);
  96                 FCEU_DispMessage("[%s] State Slot %i", st ? "USED" : "FREE", CurrentState);
  97                 if (st) fclose(st);
  98         }
  99         else if (acts & (1 << 27)) // FDS insert/eject
 100         {
 101                 FCEU_DoSimpleCommand(FCEUNPCMD_FDSINSERT);
 102         }
 103         else if (acts & (1 << 26)) // FDS select
 104         {
 105                 FCEU_DoSimpleCommand(FCEUNPCMD_FDSSELECT);
 106         }
 107         else if (acts & (1 << 25)) // VS Unisystem insert coin
 108         {
 109                 FCEU_DoSimpleCommand(FCEUNPCMD_VSUNICOIN);
 110         }
 111 }
 112
 113
 114 #define down(b) (keys & GP2X_##b)
 115 static void do_fake_mouse(unsigned long keys)
 116 {
 117         static int x=0, y=0;
 118         int speed = 3;
 119
 120         if (down(A)) speed = 1;
 121         if (down(Y)) speed = 5;
 122
 123         if (down(LEFT))
 124         {
 125                 x -= speed;
 126                 if (x < 0) x = 0;
 127         }
 128         else if (down(RIGHT))
 129         {
 130                 x += speed;
 131                 if (x > 255) x = 255;
 132         }
 133
 134         if (down(UP))
 135         {
 136                 y -= speed;
 137                 if (y < 0) y = 0;
 138         }
 139         else if (down(DOWN))
 140         {
 141                 y += speed;
 142                 if (y > 239) y = 239;
 143         }
 144
 145         MouseData[0] = x;
 146         MouseData[1] = y;
 147         MouseData[2] = 0;
 148         if (down(B)) MouseData[2] |= 1;
 149         if (down(X)) MouseData[2] |= 2;
 150 }
 151
 152
 153 void FCEUD_UpdateInput(void)
 154 {
 155         static int volpushed_frames = 0;
 156         static int turbo_rate_cnt_a = 0, turbo_rate_cnt_b = 0;
 157         unsigned long keys = gp2x_joystick_read(0);
 158         uint32 all_acts = 0;
 159         int i;
 160
 161         if ((down(VOL_DOWN) && down(VOL_UP)) || (keys & (GP2X_L|GP2X_L|GP2X_START)) == (GP2X_L|GP2X_L|GP2X_START))
 162         {
 163                 Exit = 1;
 164                 return;
 165         }
 166         else if (down(VOL_UP))
 167         {
 168                 /* wait for at least 10 updates, because user may be just trying to enter menu */
 169                 if (volpushed_frames++ > 10) {
 170                         soundvol++;
 171                         if (soundvol > 100) soundvol=100;
 172                         //FCEUI_SetSoundVolume(soundvol);
 173                         setsoundvol(soundvol);
 174                 }
 175         }
 176         else if (down(VOL_DOWN))
 177         {
 178                 if (volpushed_frames++ > 10) {
 179                         soundvol-=1;
 180                         if (soundvol < 0) soundvol=0;
 181                         //FCEUI_SetSoundVolume(soundvol);
 182                         setsoundvol(soundvol);
 183                 }
 184         }
 185         else
 186         {
 187                 volpushed_frames = 0;
 188         }
 189
 190         JSreturn = 0; // RLDU SEBA
 191
 192         if (InputType[1] != SI_GAMEPAD)
 193         {
 194                 /* try to feed fake mouse there */
 195                 do_fake_mouse(keys);
 196         }
 197
 198         for (i = 0; i < 32; i++)
 199         {
 200                 if (keys & (1 << i))
 201                 {
 202                         uint32 acts, u = 32;
 203                         acts = Settings.KeyBinds[i];
 204                         if (!acts) continue;
 205                         if ((1 << i) & combo_keys)
 206                         {
 207                                 // combo key detected, try to find if other is pressed
 208                                 for (u = i+1; u < 32; u++)
 209                                 {
 210                                         if ((keys & (1 << u)) && (Settings.KeyBinds[u] & acts))
 211                                         {
 212                                                 keys &= ~(1 << u);
 213                                                 break;
 214                                         }
 215                                 }
 216                         }
 217                         if (u != 32) acts &=  combo_acts; // other combo key pressed
 218                         else         acts &= ~combo_acts;
 219                         all_acts |= acts;
 220                 }
 221         }
 222
 223         JSreturn |= all_acts & 0xff;
 224         if (all_acts & 0x100) {         // A turbo
 225                 turbo_rate_cnt_a += Settings.turbo_rate_add;
 226                 JSreturn |= (turbo_rate_cnt_a >> 24) & 1;
 227         }
 228         if (all_acts & 0x200) {         // B turbo
 229                 turbo_rate_cnt_b += Settings.turbo_rate_add;
 230                 JSreturn |= (turbo_rate_cnt_b >> 23) & 2;
 231         }
 232
 233         do_emu_acts(all_acts);
 234 }
 235
 236
 237 static void InitOtherInput(void)
 238 {
 239
 240    void *InputDPtr;
 241
 242    int t;
 243    int x;
 244    int attrib;
 245
 246    printf("InitOtherInput: InputType[0]: %i, InputType[1]: %i, InputTypeFC: %i\n",
 247         InputType[0], InputType[1], InputTypeFC);
 248
 249    for(t=0,x=0;x<2;x++)
 250    {
 251     attrib=0;
 252     InputDPtr=0;
 253     switch(InputType[x])
 254     {
 255       //case SI_POWERPAD:InputDPtr=&powerpadbuf[x];break;
 256      case SI_GAMEPAD:InputDPtr=((uint8 *)&JSreturn)+(x<<1);break;
 257      case SI_ARKANOID:InputDPtr=MouseData;t|=1;break;
 258      case SI_ZAPPER:InputDPtr=MouseData;
 259                                 t|=1;
 260                                 attrib=1;
 261                                 break;
 262     }
 263     FCEUI_SetInput(x,InputType[x],InputDPtr,attrib);
 264    }
 265
 266    attrib=0;
 267    InputDPtr=0;
 268    switch(InputTypeFC)
 269    {
 270     case SIFC_SHADOW:InputDPtr=MouseData;t|=1;attrib=1;break;
 271     case SIFC_ARKANOID:InputDPtr=MouseData;t|=1;break;
 272     case SIFC_FKB:InputDPtr=fkbkeys;break;
 273    }
 274
 275    FCEUI_SetInputFC(InputTypeFC,InputDPtr,attrib);
 276    FCEUI_DisableFourScore(eoptions&EO_NOFOURSCORE);
 277
 278    inited|=16;
 279 }
 280
 281
 282 static void PrepareOtherInput(void)
 283 {
 284         uint32 act, key, seen_acts;
 285
 286         combo_acts = combo_keys = prev_emu_acts = seen_acts = 0;
 287
 288         // find combo_acts
 289         for (act = 1; act; act <<= 1)
 290         {
 291                 for (key = 1; key < 32; key++)
 292                 {
 293                         if (Settings.KeyBinds[key] & act)
 294                         {
 295                                 if (seen_acts & act) combo_acts |= act;
 296                                 else seen_acts |= act;
 297                         }
 298                 }
 299         }
 300
 301         // find combo_keys
 302         for (act = 1; act; act <<= 1)
 303         {
 304                 for (key = 0; key < 32; key++)
 305                 {
 306                         if (Settings.KeyBinds[key] & combo_acts)
 307                         {
 308                                 combo_keys |= 1 << key;
 309                         }
 310                 }
 311         }
 312
 313         printf("generated combo_acts: %08x, combo_keys: %08x\n", combo_acts, combo_keys);
 314 }
 315