Shamusworld >> Repos - virtualjaguar/blob - src/joystick.cpp

   1 //
   2 // Joystick handler
   3 //
   4 // by cal2
   5 // GCC/SDL port by Niels Wagenaar (Linux/WIN32) and Caz (BeOS)
   6 // Cleanups/fixes by James L. Hammons
   7 // (C) 2010 Underground Software
   8 //
   9 // JLH = James L. Hammons <jlhamm@acm.org>
  10 //
  11 // Who  When        What
  12 // ---  ----------  -------------------------------------------------------------
  13 // JLH  01/16/2010  Created this log ;-)
  14 //
  15
  16 #include "joystick.h"
  17
  18 #include <SDL.h>
  19 #include <time.h>
  20 #include "gpu.h"
  21 //#include "gui.h"
  22 #include "jaguar.h"
  23 #include "log.h"
  24 #include "settings.h"
  25 #include "video.h"
  26
  27 #if 0
  28 #define BUTTON_U                0
  29 #define BUTTON_D                1
  30 #define BUTTON_L                2
  31 #define BUTTON_R                3
  32 #define BUTTON_s                4
  33 #define BUTTON_7                5
  34 #define BUTTON_4                6
  35 #define BUTTON_1                7
  36 #define BUTTON_0                8
  37 #define BUTTON_8                9
  38 #define BUTTON_5                10
  39 #define BUTTON_2                11
  40 #define BUTTON_d                12
  41 #define BUTTON_9                13
  42 #define BUTTON_6                14
  43 #define BUTTON_3                15
  44
  45 #define BUTTON_A                16
  46 #define BUTTON_B                17
  47 #define BUTTON_C                18
  48 #define BUTTON_OPTION   19
  49 #define BUTTON_PAUSE    20
  50 #endif
  51
  52 // Global vars
  53
  54 static uint8 joystick_ram[4];
  55 uint8 joypad_0_buttons[21];
  56 uint8 joypad_1_buttons[21];
  57
  58 bool keyBuffer[21];
  59
  60 //extern bool finished;
  61 ////extern bool showGUI;
  62 bool GUIKeyHeld = false;
  63 extern int start_logging;
  64 int gpu_start_log = 0;
  65 int op_start_log = 0;
  66 int blit_start_log = 0;
  67 int effect_start = 0;
  68 int effect_start2 = 0, effect_start3 = 0, effect_start4 = 0, effect_start5 = 0, effect_start6 = 0;
  69 bool interactiveMode = false;
  70 bool iLeft, iRight, iToggle = false;
  71 bool keyHeld1 = false, keyHeld2 = false, keyHeld3 = false;
  72 int objectPtr = 0;
  73 bool startMemLog = false;
  74 extern bool doDSPDis, doGPUDis;
  75
  76 bool blitterSingleStep = false;
  77 bool bssGo = false;
  78 bool bssHeld = false;
  79
  80 void JoystickInit(void)
  81 {
  82         JoystickReset();
  83 }
  84
  85 void JoystickExec(void)
  86 {
  87 //      uint8 * keystate = SDL_GetKeyState(NULL);
  88
  89 //      memset(joypad_0_buttons, 0, 21);
  90 //      memset(joypad_1_buttons, 0, 21);
  91         gpu_start_log = 0;                                                      // Only log while key down!
  92         effect_start = 0;
  93         effect_start2 = effect_start3 = effect_start4 = effect_start5 = effect_start6 = 0;
  94         blit_start_log = 0;
  95         iLeft = iRight = false;
  96
  97 #if 0
  98         if ((keystate[SDLK_LALT] || keystate[SDLK_RALT]) & keystate[SDLK_RETURN])
  99                 ToggleFullscreen();
 100
 101         // Keybindings in order of U, D, L, R, C, B, A, Op, Pa, 0-9, #, *
 102 //      vjs.p1KeyBindings[0] = sdlemu_getval_int("p1k_up", SDLK_UP);
 103
 104 #if 0
 105         if (keystate[vjs.p1KeyBindings[0]])
 106                 joypad_0_buttons[BUTTON_U] = 0x01;
 107         if (keystate[vjs.p1KeyBindings[1]])
 108                 joypad_0_buttons[BUTTON_D] = 0x01;
 109         if (keystate[vjs.p1KeyBindings[2]])
 110                 joypad_0_buttons[BUTTON_L] = 0x01;
 111         if (keystate[vjs.p1KeyBindings[3]])
 112                 joypad_0_buttons[BUTTON_R] = 0x01;
 113         // The buttons are labelled C,B,A on the controller (going from left to right)
 114         if (keystate[vjs.p1KeyBindings[4]])
 115                 joypad_0_buttons[BUTTON_C] = 0x01;
 116         if (keystate[vjs.p1KeyBindings[5]])
 117                 joypad_0_buttons[BUTTON_B] = 0x01;
 118         if (keystate[vjs.p1KeyBindings[6]])
 119                 joypad_0_buttons[BUTTON_A] = 0x01;
 120 //I may yet move these to O and P...
 121         if (keystate[vjs.p1KeyBindings[7]])
 122                 joypad_0_buttons[BUTTON_OPTION] = 0x01;
 123         if (keystate[vjs.p1KeyBindings[8]])
 124                 joypad_0_buttons[BUTTON_PAUSE] = 0x01;
 125
 126         if (keystate[vjs.p1KeyBindings[9]])
 127                 joypad_0_buttons[BUTTON_0] = 0x01;
 128         if (keystate[vjs.p1KeyBindings[10]])
 129                 joypad_0_buttons[BUTTON_1] = 0x01;
 130         if (keystate[vjs.p1KeyBindings[11]])
 131                 joypad_0_buttons[BUTTON_2] = 0x01;
 132         if (keystate[vjs.p1KeyBindings[12]])
 133                 joypad_0_buttons[BUTTON_3] = 0x01;
 134         if (keystate[vjs.p1KeyBindings[13]])
 135                 joypad_0_buttons[BUTTON_4] = 0x01;
 136         if (keystate[vjs.p1KeyBindings[14]])
 137                 joypad_0_buttons[BUTTON_5] = 0x01;
 138         if (keystate[vjs.p1KeyBindings[15]])
 139                 joypad_0_buttons[BUTTON_6] = 0x01;
 140         if (keystate[vjs.p1KeyBindings[16]])
 141                 joypad_0_buttons[BUTTON_7] = 0x01;
 142         if (keystate[vjs.p1KeyBindings[17]])
 143                 joypad_0_buttons[BUTTON_8] = 0x01;
 144         if (keystate[vjs.p1KeyBindings[18]])
 145                 joypad_0_buttons[BUTTON_9] = 0x01;
 146         if (keystate[vjs.p1KeyBindings[19]])
 147                 joypad_0_buttons[BUTTON_s] = 0x01;
 148         if (keystate[vjs.p1KeyBindings[20]])
 149                 joypad_0_buttons[BUTTON_d] = 0x01;
 150 #else
 151         if (keyBuffer[0])
 152                 joypad_0_buttons[BUTTON_U] = 0x01;
 153         if (keyBuffer[1])
 154                 joypad_0_buttons[BUTTON_D] = 0x01;
 155         if (keyBuffer[2])
 156                 joypad_0_buttons[BUTTON_L] = 0x01;
 157         if (keyBuffer[3])
 158                 joypad_0_buttons[BUTTON_R] = 0x01;
 159         // The buttons are labelled C,B,A on the controller (going from left to right)
 160         if (keyBuffer[4])
 161                 joypad_0_buttons[BUTTON_C] = 0x01;
 162         if (keyBuffer[5])
 163                 joypad_0_buttons[BUTTON_B] = 0x01;
 164         if (keyBuffer[6])
 165                 joypad_0_buttons[BUTTON_A] = 0x01;
 166 //I may yet move these to O and P...
 167         if (keyBuffer[7])
 168                 joypad_0_buttons[BUTTON_OPTION] = 0x01;
 169         if (keyBuffer[8])
 170                 joypad_0_buttons[BUTTON_PAUSE] = 0x01;
 171
 172         if (keyBuffer[9])
 173                 joypad_0_buttons[BUTTON_0] = 0x01;
 174         if (keyBuffer[10])
 175                 joypad_0_buttons[BUTTON_1] = 0x01;
 176         if (keyBuffer[11])
 177                 joypad_0_buttons[BUTTON_2] = 0x01;
 178         if (keyBuffer[12])
 179                 joypad_0_buttons[BUTTON_3] = 0x01;
 180         if (keyBuffer[13])
 181                 joypad_0_buttons[BUTTON_4] = 0x01;
 182         if (keyBuffer[14])
 183                 joypad_0_buttons[BUTTON_5] = 0x01;
 184         if (keyBuffer[15])
 185                 joypad_0_buttons[BUTTON_6] = 0x01;
 186         if (keyBuffer[16])
 187                 joypad_0_buttons[BUTTON_7] = 0x01;
 188         if (keyBuffer[17])
 189                 joypad_0_buttons[BUTTON_8] = 0x01;
 190         if (keyBuffer[18])
 191                 joypad_0_buttons[BUTTON_9] = 0x01;
 192         if (keyBuffer[19])
 193                 joypad_0_buttons[BUTTON_s] = 0x01;
 194         if (keyBuffer[20])
 195                 joypad_0_buttons[BUTTON_d] = 0x01;
 196 #endif
 197
 198 #warning "!!! FIX !!! (debounceRunKey)"
 199 //      extern bool debounceRunKey;
 200         bool debounceRunKey;
 201     if (keystate[SDLK_ESCAPE])
 202     {
 203                 if (!debounceRunKey)
 204 #warning "!!! FIX !!! (finished = true)"
 205 ;//             finished = true;
 206     }
 207     else
 208                 debounceRunKey = false;
 209
 210         if (keystate[SDLK_TAB])
 211         {
 212                 if (!GUIKeyHeld)
 213 #warning "!!! FIX !!! (showGUI = !showGUI, ...)"
 214 ;//                     showGUI = !showGUI, GUIKeyHeld = true;
 215         }
 216         else
 217                 GUIKeyHeld = false;
 218
 219         if (keystate[SDLK_q])
 220                 start_logging = 1;
 221         if (keystate[SDLK_w])
 222                 GPUResetStats();
 223 //      if (keystate[SDLK_u])           jaguar_long_write(0xf1c384,jaguar_long_read(0xf1c384)+1);
 224         if (keystate[SDLK_d])
 225                 DumpMainMemory();
 226         if (keystate[SDLK_l])
 227                 gpu_start_log = 1;
 228         if (keystate[SDLK_o])
 229                 op_start_log = 1;
 230         if (keystate[SDLK_b])
 231                 blit_start_log = 1;
 232
 233         if (keystate[SDLK_1])
 234                 effect_start = 1;
 235         if (keystate[SDLK_2])
 236                 effect_start2 = 1;
 237         if (keystate[SDLK_3])
 238                 effect_start3 = 1;
 239         if (keystate[SDLK_4])
 240                 effect_start4 = 1;
 241         if (keystate[SDLK_5])
 242                 effect_start5 = 1;
 243         if (keystate[SDLK_6])
 244                 effect_start6 = 1;
 245
 246         if (keystate[SDLK_i])
 247                 interactiveMode = true;
 248
 249         if (keystate[SDLK_8] && interactiveMode)
 250         {
 251                 if (!keyHeld1)
 252                         objectPtr--, keyHeld1 = true;
 253         }
 254         else
 255                 keyHeld1 = false;
 256
 257         if (keystate[SDLK_0] && interactiveMode)
 258         {
 259                 if (!keyHeld2)
 260                         objectPtr++, keyHeld2 = true;
 261         }
 262         else
 263                 keyHeld2 = false;
 264
 265         if (keystate[SDLK_9] && interactiveMode)
 266         {
 267                 if (!keyHeld3)
 268                         iToggle = !iToggle, keyHeld3 = true;
 269         }
 270         else
 271                 keyHeld3 = false;
 272
 273         if (keystate[SDLK_e])
 274                 startMemLog = true;
 275         if (keystate[SDLK_r])
 276                 WriteLog("\n--------> MARK!\n\n");
 277         if (keystate[SDLK_t])
 278                 doDSPDis = true;
 279         if (keystate[SDLK_y])
 280                 doGPUDis = true;
 281
 282         // BLITTER single step
 283         if (keystate[SDLK_F5])
 284                 blitterSingleStep = true;
 285
 286         if (keystate[SDLK_F6])
 287         {
 288                 if (!bssHeld)
 289                 {
 290                         bssHeld = true;
 291                         bssGo = true;
 292                 }
 293         }
 294         else
 295                 bssHeld = false;
 296 #endif
 297         // We need to ensure that illegal combinations are not possible.
 298         // So, we do a simple minded way here...
 299         // It would be better to check to see which one was pressed last
 300         // and discard that one, but for now...
 301 //This didn't work... Was still able to do bad combination.
 302 //It's because the GUI is changing this *after* we fix it here.
 303 #if 0
 304         if (joypad_0_buttons[BUTTON_R] && joypad_0_buttons[BUTTON_L])
 305                 joypad_0_buttons[BUTTON_L] = 0;
 306
 307         if (joypad_0_buttons[BUTTON_U] && joypad_0_buttons[BUTTON_D])
 308                 joypad_0_buttons[BUTTON_D] = 0;
 309 #endif
 310
 311         // Joystick support [nwagenaar]
 312
 313     if (vjs.useJoystick)
 314     {
 315                 extern SDL_Joystick * joystick1;
 316                 int16 x = SDL_JoystickGetAxis(joystick1, 0),
 317                         y = SDL_JoystickGetAxis(joystick1, 1);
 318
 319                 if (x > 16384)
 320                         joypad_0_buttons[BUTTON_R] = 0x01;
 321                 if (x < -16384)
 322                         joypad_0_buttons[BUTTON_L] = 0x01;
 323                 if (y > 16384)
 324                         joypad_0_buttons[BUTTON_D] = 0x01;
 325                 if (y < -16384)
 326                         joypad_0_buttons[BUTTON_U] = 0x01;
 327
 328                 if (SDL_JoystickGetButton(joystick1, 0) == SDL_PRESSED)
 329                         joypad_0_buttons[BUTTON_A] = 0x01;
 330                 if (SDL_JoystickGetButton(joystick1, 1) == SDL_PRESSED)
 331                         joypad_0_buttons[BUTTON_B] = 0x01;
 332                 if (SDL_JoystickGetButton(joystick1, 2) == SDL_PRESSED)
 333                         joypad_0_buttons[BUTTON_C] = 0x01;
 334         }
 335
 336         // Needed to ensure that the events queue is empty [nwagenaar]
 337     SDL_PumpEvents();
 338 }
 339
 340 void JoystickReset(void)
 341 {
 342         memset(joystick_ram, 0x00, 4);
 343         memset(joypad_0_buttons, 0, 21);
 344         memset(joypad_1_buttons, 0, 21);
 345 }
 346
 347 void JoystickDone(void)
 348 {
 349 }
 350
 351 uint8 JoystickReadByte(uint32 offset)
 352 {
 353 #warning "No bounds checking done in JoystickReadByte!"
 354 //      extern bool hardwareTypeNTSC;
 355         offset &= 0x03;
 356
 357         if (offset == 0)
 358         {
 359                 uint8 data = 0x00;
 360                 int pad0Index = joystick_ram[1] & 0x0F;
 361                 int pad1Index = (joystick_ram[1] >> 4) & 0x0F;
 362
 363 // This is bad--we're assuming that a bit is set in the last case. Might not be so!
 364 // NOTE: values $7, B, D, & E are only legal ones for pad 0, (rows 3 to 0, in both cases)
 365 //              $E, D, B, & 7 are only legal ones for pad 1
 366 //       So the following code is WRONG!
 367
 368                 if (!(pad0Index & 0x01))
 369                         pad0Index = 0;
 370                 else if (!(pad0Index & 0x02))
 371                         pad0Index = 1;
 372                 else if (!(pad0Index & 0x04))
 373                         pad0Index = 2;
 374                 else
 375                         pad0Index = 3;
 376
 377                 if (!(pad1Index & 0x01))
 378                         pad1Index = 0;
 379                 else if (!(pad1Index & 0x02))
 380                         pad1Index = 1;
 381                 else if (!(pad1Index & 0x04))
 382                         pad1Index = 2;
 383                 else
 384                         pad1Index = 3;
 385
 386                 if (joypad_0_buttons[(pad0Index << 2) + 0])     data |= 0x01;
 387                 if (joypad_0_buttons[(pad0Index << 2) + 1]) data |= 0x02;
 388                 if (joypad_0_buttons[(pad0Index << 2) + 2]) data |= 0x04;
 389                 if (joypad_0_buttons[(pad0Index << 2) + 3]) data |= 0x08;
 390                 if (joypad_1_buttons[(pad1Index << 2) + 0]) data |= 0x10;
 391                 if (joypad_1_buttons[(pad1Index << 2) + 1]) data |= 0x20;
 392                 if (joypad_1_buttons[(pad1Index << 2) + 2]) data |= 0x40;
 393                 if (joypad_1_buttons[(pad1Index << 2) + 3]) data |= 0x80;
 394
 395                 return ~data;
 396         }
 397         else if (offset == 3)
 398         {
 399                 // Hardware ID returns NTSC/PAL identification bit here
 400                 uint8 data = 0x2F | (vjs.hardwareTypeNTSC ? 0x10 : 0x00);
 401                 int pad0Index = joystick_ram[1] & 0x0F;
 402 //unused                int pad1Index = (joystick_ram[1] >> 4) & 0x0F;
 403
 404 //WTF is this shit?
 405                 if (!(pad0Index & 0x01))
 406                 {
 407                         if (joypad_0_buttons[BUTTON_PAUSE])
 408                                 data ^= 0x01;
 409                         if (joypad_0_buttons[BUTTON_A])
 410                                 data ^= 0x02;
 411                 }
 412                 else if (!(pad0Index & 0x02))
 413                 {
 414                         if (joypad_0_buttons[BUTTON_B])
 415                                 data ^= 0x02;
 416                 }
 417                 else if (!(pad0Index & 0x04))
 418                 {
 419                         if (joypad_0_buttons[BUTTON_C])
 420                                 data ^= 0x02;
 421                 }
 422                 else
 423                 {
 424                         if (joypad_0_buttons[BUTTON_OPTION])
 425                                 data ^= 0x02;
 426                 }
 427
 428                 return data;
 429         }
 430
 431         return joystick_ram[offset];
 432 }
 433
 434 uint16 JoystickReadWord(uint32 offset)
 435 {
 436         return ((uint16)JoystickReadByte((offset + 0) & 0x03) << 8) | JoystickReadByte((offset + 1) & 0x03);
 437 }
 438
 439 void JoystickWriteByte(uint32 offset, uint8 data)
 440 {
 441         joystick_ram[offset & 0x03] = data;
 442 }
 443
 444 void JoystickWriteWord(uint32 offset, uint16 data)
 445 {
 446 #warning "No bounds checking done for JoystickWriteWord!"
 447         offset &= 0x03;
 448         joystick_ram[offset + 0] = (data >> 8) & 0xFF;
 449         joystick_ram[offset + 1] = data & 0xFF;
 450 }