src/mac/corefoundation/hidjoystick.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        joystick.cpp
   3 // Purpose:     wxJoystick class
   4 // Author:      Ryan Norton
   5 // Modified by:
   6 // Created:     2/13/2005
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Ryan Norton
   9 // Licence:       wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "joystick.h"
  14 #endif
  15
  16 #include "wx/wxprec.h"
  17
  18 #ifdef __DARWIN__
  19
  20 #if wxUSE_JOYSTICK
  21
  22 #include "wx/event.h"
  23 #include "wx/log.h"
  24 #include "wx/joystick.h"
  25 #include "wx/thread.h"
  26 #include "wx/window.h"
  27
  28 #include "wx/mac/corefoundation/hid.h"
  29
  30 #include <CoreServices/CoreServices.h>
  31 #include <mach/mach.h>
  32 #include <mach/mach_time.h>
  33 #include <unistd.h>
  34
  35 enum {
  36     wxJS_AXIS_X = 40,
  37     wxJS_AXIS_Y,
  38     wxJS_AXIS_Z,
  39     wxJS_AXIS_RUDDER,
  40     wxJS_AXIS_U,
  41     wxJS_AXIS_V,
  42
  43     wxJS_AXIS_MAX = 255, //32767,
  44     wxJS_AXIS_MIN = 0, //-32767
  45 };
  46
  47 class wxHIDJoystick : public wxHIDDevice
  48 {
  49 public:
  50         bool Create(int nWhich);
  51         virtual void BuildCookies(wxCFArray& Array);
  52         void MakeCookies(wxCFArray& Array);
  53     IOHIDElementCookie* GetCookies() {return m_pCookies;}
  54     IOHIDQueueInterface** GetQueue() {return m_ppQueue;}
  55
  56     friend class wxJoystick;
  57 };
  58
  59
  60 bool wxHIDJoystick::Create(int nWhich)
  61 {
  62     int nJoysticks = GetCount(kHIDPage_GenericDesktop, kHIDUsage_GD_Joystick);
  63
  64     if (nWhich <= nJoysticks)
  65         return wxHIDDevice::Create(kHIDPage_GenericDesktop, kHIDUsage_GD_Joystick);
  66     else
  67         nWhich -= nJoysticks;
  68
  69     int nGamePads = GetCount(kHIDPage_GenericDesktop, kHIDUsage_GD_GamePad);
  70
  71     if (nWhich <= nGamePads)
  72         return wxHIDDevice::Create(kHIDPage_GenericDesktop, kHIDUsage_GD_GamePad);
  73     else
  74         return false;
  75 }
  76
  77 void wxHIDJoystick::BuildCookies(wxCFArray& Array)
  78 {
  79         Array = CFDictionaryGetValue((CFDictionaryRef)Array[0], CFSTR(kIOHIDElementKey));
  80         InitCookies(50, true);
  81
  82     memset(m_pCookies, 0, sizeof(*m_pCookies) * 50);
  83     MakeCookies(Array);
  84
  85 //    for(int i = 0; i < 50; ++i)
  86 //        wxPrintf(wxT("\nVAL #%i:[%i]"), i, m_pCookies[i]);
  87 }//end buildcookies
  88
  89 void wxHIDJoystick::MakeCookies(wxCFArray& Array)
  90 {
  91         int i,
  92                 nUsage,
  93         nPage;
  94         for (i = 0; i < Array.GetCount(); ++i)
  95         {
  96         const void* ref = CFDictionaryGetValue((CFDictionaryRef)Array[i], CFSTR(kIOHIDElementKey));
  97
  98 //        wxPrintf(wxT("ELM\n"));
  99         if (ref  != NULL)
 100         {
 101             wxCFArray newarray(ref);
 102             MakeCookies(newarray);
 103         }
 104         else
 105         {
 106             CFNumberGetValue(
 107                         (CFNumberRef) CFDictionaryGetValue((CFDictionaryRef) Array[i], CFSTR(kIOHIDElementUsageKey)),
 108                                 kCFNumberLongType, &nUsage);
 109
 110             CFNumberGetValue(
 111                         (CFNumberRef) CFDictionaryGetValue((CFDictionaryRef) Array[i], CFSTR(kIOHIDElementUsagePageKey)),
 112                                 kCFNumberLongType, &nPage);
 113
 114             if (nPage == kHIDPage_Button && nUsage <= 40)
 115                 AddCookieInQueue(Array[i], nUsage-1 );
 116             else if (nPage == kHIDPage_GenericDesktop)
 117             {
 118                 switch(nUsage)
 119                 {
 120                     case kHIDUsage_GD_X:
 121                         AddCookieInQueue(Array[i], wxJS_AXIS_X);
 122                         break;
 123                     case kHIDUsage_GD_Y:
 124                         AddCookieInQueue(Array[i], wxJS_AXIS_Y);
 125                         break;
 126                     case kHIDUsage_GD_Z:
 127                         AddCookieInQueue(Array[i], wxJS_AXIS_Z);
 128                         break;
 129                     default:
 130                         break;
 131                 }
 132             }
 133             else if (nPage == kHIDPage_Simulation && nUsage == kHIDUsage_Sim_Rudder)
 134                 AddCookieInQueue(Array[i], wxJS_AXIS_RUDDER );
 135         }
 136         }
 137 }
 138
 139
 140
 141 IMPLEMENT_DYNAMIC_CLASS(wxJoystick, wxObject)
 142
 143
 144 ////////////////////////////////////////////////////////////////////////////
 145 // Background thread for reading the joystick device
 146 ////////////////////////////////////////////////////////////////////////////
 147
 148 class wxJoystickThread : public wxThread
 149 {
 150 public:
 151     wxJoystickThread(wxHIDJoystick* hid, int joystick);
 152     void* Entry();
 153
 154     static void HIDCallback(void* target, IOReturn res, void* context, void* sender)
 155     {
 156         IOHIDEventStruct hidevent;
 157         AbsoluteTime bogustime = {0,0};
 158         IOReturn ret;
 159         wxJoystickThread* pThis = (wxJoystickThread*) context;
 160         wxHIDJoystick* m_hid = pThis->m_hid;
 161
 162 //        wxMutexGuiEnter();
 163         ret = (*m_hid->GetQueue())->getNextEvent(m_hid->GetQueue(),
 164                         &hidevent, bogustime, 0);
 165   //      wxMutexGuiLeave();
 166         while (    ret != kIOReturnUnderrun )
 167         {
 168             if (pThis->TestDestroy())
 169                 break;
 170
 171 //            wxPrintf(wxT("ENTER\n"));
 172             if(ret != kIOReturnSuccess)
 173             {
 174                 wxLogSysError(wxString::Format(wxT("wxJoystick Error:[%i]"), ret));
 175                 return;
 176             }
 177
 178             wxJoystickEvent wxevent;
 179
 180             int nIndex = 0;
 181             IOHIDElementCookie* pCookies = m_hid->GetCookies();
 182             while(nIndex < 50)
 183             {
 184                 if(hidevent.elementCookie == pCookies[nIndex])
 185                     break;
 186
 187                 ++nIndex;
 188             }
 189             if(nIndex == 50)
 190             {
 191                 wxLogSysError(wxString::Format(wxT("wxJoystick Out Of Bounds Error")));
 192                 break;
 193             }
 194
 195             if (nIndex < 40)
 196             {
 197                 if (hidevent.value)
 198                 {
 199                     pThis->m_buttons |= (1 << nIndex);
 200                     wxevent.SetEventType(wxEVT_JOY_BUTTON_DOWN);
 201                 }
 202                 else
 203                 {
 204                     pThis->m_buttons &= ~(1 << nIndex);
 205                     wxevent.SetEventType(wxEVT_JOY_BUTTON_UP);
 206                 }
 207
 208                 wxevent.SetButtonChange(nIndex+1);
 209             }
 210             else if (nIndex == wxJS_AXIS_X)
 211             {
 212                 pThis->m_lastposition.x = hidevent.value;
 213                 wxevent.SetEventType(wxEVT_JOY_MOVE);
 214                 pThis->m_axe[0] = hidevent.value;
 215             }
 216             else if (nIndex == wxJS_AXIS_Y)
 217             {
 218                 pThis->m_lastposition.y = hidevent.value;
 219                 wxevent.SetEventType(wxEVT_JOY_MOVE);
 220                 pThis->m_axe[1] = hidevent.value;
 221             }
 222             else if (nIndex == wxJS_AXIS_Z)
 223             {
 224                 wxevent.SetEventType(wxEVT_JOY_ZMOVE);
 225                 pThis->m_axe[2] = hidevent.value;
 226             }
 227             else
 228                 wxevent.SetEventType(wxEVT_JOY_MOVE);
 229
 230             Nanoseconds timestamp = AbsoluteToNanoseconds(hidevent.timestamp);
 231
 232             wxULongLong llTime(timestamp.hi, timestamp.lo);
 233
 234             llTime /= 1000000;
 235
 236             wxevent.SetTimestamp(llTime.GetValue());
 237             wxevent.SetJoystick(pThis->m_joystick);
 238             wxevent.SetButtonState(pThis->m_buttons);
 239             wxevent.SetPosition(pThis->m_lastposition);
 240             wxevent.SetZPosition(pThis->m_axe[2]);
 241             wxevent.SetEventObject(pThis->m_catchwin);
 242
 243 //            wxPrintf(wxT("SEND\n"));
 244
 245             if (pThis->m_catchwin)
 246                 pThis->m_catchwin->AddPendingEvent(wxevent);
 247
 248          //   wxMutexGuiEnter();
 249             ret = (*m_hid->GetQueue())->getNextEvent(m_hid->GetQueue(),
 250                         &hidevent, bogustime, 0);
 251            // wxMutexGuiLeave();
 252         }
 253     }
 254
 255 private:
 256     wxHIDJoystick*       m_hid;
 257     int       m_joystick;
 258     wxPoint   m_lastposition;
 259     int       m_axe[15];
 260     int       m_buttons;
 261     wxWindow* m_catchwin;
 262     int       m_polling;
 263
 264     friend class wxJoystick;
 265 };
 266
 267
 268 wxJoystickThread::wxJoystickThread(wxHIDJoystick* hid, int joystick)
 269     : m_hid(hid),
 270       m_joystick(joystick),
 271       m_lastposition(127,127),
 272       m_buttons(0),
 273       m_catchwin(NULL),
 274       m_polling(0)
 275 {
 276     for (int i=0; i<15; i++)
 277         m_axe[i] = 0;
 278 }
 279
 280
 281 #       define wxJSVERIFY(arg)  if(!(arg)) {wxLogSysError(wxT(#arg)); return NULL;}
 282 #       define wxJSASSERT(arg)  wxJSVERIFY(arg)
 283
 284 void* wxJoystickThread::Entry()
 285 {
 286     CFRunLoopSourceRef pRLSource = NULL;
 287
 288     wxJSVERIFY( (*m_hid->GetQueue())->createAsyncEventSource(m_hid->GetQueue(), &pRLSource)
 289                         == kIOReturnSuccess );
 290     wxJSASSERT(pRLSource != NULL);
 291
 292     //attach runloop source to main run loop in thread
 293     CFRunLoopRef pRL = CFRunLoopGetCurrent();
 294     CFRunLoopAddSource(pRL, pRLSource, kCFRunLoopDefaultMode);
 295
 296     wxJSVERIFY( (*m_hid->GetQueue())->start(m_hid->GetQueue()) == kIOReturnSuccess );
 297     wxJSVERIFY( (*m_hid->GetQueue())->setEventCallout(m_hid->GetQueue(), &wxJoystickThread::HIDCallback, this, this) == kIOReturnSuccess );
 298
 299     double dTime;
 300
 301     while(true)
 302     {
 303         if (TestDestroy())
 304             break;
 305
 306         if (m_polling)
 307             dTime = 0.0001 * m_polling;
 308         else
 309             dTime = 0.0001 * 10;  // check at least every 10 msec in blocking case
 310
 311         CFRunLoopRunInMode(kCFRunLoopDefaultMode, dTime, true);
 312     }
 313
 314     wxJSASSERT( CFRunLoopContainsSource(pRL, pRLSource, kCFRunLoopDefaultMode) );
 315     CFRunLoopRemoveSource(pRL, pRLSource, kCFRunLoopDefaultMode);
 316     CFRelease(pRLSource);
 317
 318     return NULL;
 319 }
 320
 321
 322 ////////////////////////////////////////////////////////////////////////////
 323
 324 wxJoystick::wxJoystick(int joystick)
 325     : m_joystick(joystick),
 326       m_thread(NULL)
 327 {
 328     m_hid = new wxHIDJoystick();
 329
 330     if (m_hid->Create(m_joystick))
 331     {
 332         m_thread = new wxJoystickThread(m_hid, m_joystick);
 333         m_thread->Create();
 334         m_thread->Run();
 335     }
 336     else
 337     {
 338         delete m_hid;
 339         m_hid = NULL;
 340     }
 341 }
 342
 343
 344 wxJoystick::~wxJoystick()
 345 {
 346     ReleaseCapture();
 347     if (m_thread)
 348         m_thread->Delete();  // It's detached so it will delete itself
 349
 350     if (m_hid)
 351         delete m_hid;
 352 }
 353
 354
 355 ////////////////////////////////////////////////////////////////////////////
 356 // State
 357 ////////////////////////////////////////////////////////////////////////////
 358
 359 wxPoint wxJoystick::GetPosition() const
 360 {
 361     wxPoint pos(wxDefaultPosition);
 362     if (m_thread) pos = m_thread->m_lastposition;
 363     return pos;
 364 }
 365
 366 int wxJoystick::GetZPosition() const
 367 {
 368     if (m_thread)
 369         return m_thread->m_axe[wxJS_AXIS_Z];
 370     return 0;
 371 }
 372
 373 int wxJoystick::GetButtonState() const
 374 {
 375     if (m_thread)
 376         return m_thread->m_buttons;
 377     return 0;
 378 }
 379
 380 int wxJoystick::GetPOVPosition() const
 381 {       return -1;                              }
 382
 383 int wxJoystick::GetPOVCTSPosition() const
 384 {       return -1;                              }
 385
 386 int wxJoystick::GetRudderPosition() const
 387 {
 388     if (m_thread)
 389         return m_thread->m_axe[wxJS_AXIS_RUDDER];
 390     return 0;
 391 }
 392
 393 int wxJoystick::GetUPosition() const
 394 {
 395     if (m_thread)
 396         return m_thread->m_axe[wxJS_AXIS_U];
 397     return 0;
 398 }
 399
 400 int wxJoystick::GetVPosition() const
 401 {
 402     if (m_thread)
 403         return m_thread->m_axe[wxJS_AXIS_V];
 404     return 0;
 405 }
 406
 407 int wxJoystick::GetMovementThreshold() const
 408 {       return 0;                               }
 409
 410 void wxJoystick::SetMovementThreshold(int threshold)
 411 {                                                       }
 412
 413 ////////////////////////////////////////////////////////////////////////////
 414 // Capabilities
 415 ////////////////////////////////////////////////////////////////////////////
 416
 417 bool wxJoystick::IsOk() const
 418 {       return m_hid != NULL;   }
 419
 420 int wxJoystick::GetNumberJoysticks() const
 421 {    return wxHIDDevice::GetCount(kHIDPage_GenericDesktop, kHIDUsage_GD_Joystick) +
 422             wxHIDDevice::GetCount(kHIDPage_GenericDesktop, kHIDUsage_GD_GamePad);   }
 423
 424 int wxJoystick::GetManufacturerId() const
 425 {       return m_hid->m_nManufacturerId;                                }
 426
 427 int wxJoystick::GetProductId() const
 428 {       return m_hid->m_nProductId;                             }
 429
 430 wxString wxJoystick::GetProductName() const
 431 {       return m_hid->m_szProductName;                          }
 432
 433 int wxJoystick::GetXMin() const
 434 {       return wxJS_AXIS_MIN;   }
 435
 436 int wxJoystick::GetYMin() const
 437 {       return wxJS_AXIS_MIN;   }
 438
 439 int wxJoystick::GetZMin() const
 440 {       return wxJS_AXIS_MIN;   }
 441
 442 int wxJoystick::GetXMax() const
 443 {       return wxJS_AXIS_MAX;   }
 444
 445 int wxJoystick::GetYMax() const
 446 {       return wxJS_AXIS_MAX;   }
 447
 448 int wxJoystick::GetZMax() const
 449 {       return wxJS_AXIS_MAX;   }
 450
 451 int wxJoystick::GetNumberButtons() const
 452 {
 453     int nCount = 0;
 454
 455     for(int nIndex = 0; nIndex < 40; ++nIndex)
 456     {
 457         if(m_hid->HasElement(nIndex))
 458             ++nCount;
 459     }
 460
 461     return nCount;
 462 }
 463
 464 int wxJoystick::GetNumberAxes() const
 465 {
 466     int nCount = 0;
 467
 468     for(int nIndex = 40; nIndex < 50; ++nIndex)
 469     {
 470         if(m_hid->HasElement(nIndex))
 471             ++nCount;
 472     }
 473
 474     return nCount;
 475 }
 476
 477 //
 478 // internal
 479 //
 480 int wxJoystick::GetMaxButtons() const
 481 {       return 15;      }
 482
 483 int wxJoystick::GetMaxAxes() const
 484 {       return 10;      }
 485
 486 int wxJoystick::GetPollingMin() const
 487 {       return 10;      }
 488
 489 int wxJoystick::GetPollingMax() const
 490 {       return 1000;    }
 491
 492 int wxJoystick::GetRudderMin() const
 493 {       return wxJS_AXIS_MIN;   }
 494
 495 int wxJoystick::GetRudderMax() const
 496 {       return wxJS_AXIS_MAX;   }
 497
 498 int wxJoystick::GetUMin() const
 499 {       return wxJS_AXIS_MIN;   }
 500
 501 int wxJoystick::GetUMax() const
 502 {       return wxJS_AXIS_MAX;   }
 503
 504 int wxJoystick::GetVMin() const
 505 {       return wxJS_AXIS_MIN;   }
 506
 507 int wxJoystick::GetVMax() const
 508 {       return wxJS_AXIS_MAX;   }
 509
 510 bool wxJoystick::HasRudder() const
 511 {       return m_hid->HasElement(wxJS_AXIS_RUDDER);     }
 512
 513 bool wxJoystick::HasZ() const
 514 {       return m_hid->HasElement(wxJS_AXIS_Z);  }
 515
 516 bool wxJoystick::HasU() const
 517 {       return m_hid->HasElement(wxJS_AXIS_U);  }
 518
 519 bool wxJoystick::HasV() const
 520 {       return m_hid->HasElement(wxJS_AXIS_V);  }
 521
 522 bool wxJoystick::HasPOV() const
 523 {       return false;   }
 524
 525 bool wxJoystick::HasPOV4Dir() const
 526 {       return false;   }
 527
 528 bool wxJoystick::HasPOVCTS() const
 529 {       return false;   }
 530
 531 ////////////////////////////////////////////////////////////////////////////
 532 // Operations
 533 ////////////////////////////////////////////////////////////////////////////
 534
 535 bool wxJoystick::SetCapture(wxWindow* win, int pollingFreq)
 536 {
 537     if (m_thread)
 538     {
 539         m_thread->m_catchwin = win;
 540         m_thread->m_polling = pollingFreq;
 541         return true;
 542     }
 543     return false;
 544 }
 545
 546 bool wxJoystick::ReleaseCapture()
 547 {
 548     if (m_thread)
 549     {
 550         m_thread->m_catchwin = NULL;
 551         m_thread->m_polling = 0;
 552         return true;
 553     }
 554     return false;
 555 }
 556 #endif
 557     //OSX
 558
 559 #endif
 560     // wxUSE_JOYSTICK
 561