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