diff options
Diffstat (limited to 'tracker-pt/wiiyourself/wiimote.cpp')
| -rw-r--r-- | tracker-pt/wiiyourself/wiimote.cpp | 2806 |
1 files changed, 2806 insertions, 0 deletions
diff --git a/tracker-pt/wiiyourself/wiimote.cpp b/tracker-pt/wiiyourself/wiimote.cpp new file mode 100644 index 00000000..46130cca --- /dev/null +++ b/tracker-pt/wiiyourself/wiimote.cpp @@ -0,0 +1,2806 @@ +// _______________________________________________________________________________ +// +// - WiiYourself! - native C++ Wiimote library v1.15 +// (c) gl.tter 2007-10 - http://gl.tter.org +// +// see License.txt for conditions of use. see History.txt for change log. +// _______________________________________________________________________________ +// +// wiimote.cpp (tab = 4 spaces) + +// VC-specifics: +#ifdef _MSC_VER + // disable warning "C++ exception handler used, but unwind semantics are not enabled." + // in <xstring> (I don't use it - or just enable C++ exceptions) +# pragma warning(disable: 4530) +// auto-link with the necessary libs +# pragma comment(lib, "setupapi.lib") +# pragma comment(lib, "hid.lib") // for HID API (from DDK) +# pragma comment(lib, "winmm.lib") // for timeGetTime() +#endif // _MSC_VER + +#include "wiimote.h" +#include <setupapi.h> +extern "C" { +# ifdef __MINGW32__ +# include <ddk/hidsdi.h>// from WinDDK +# else +# include <hidsdi.h> +# endif +} +#include <sys/types.h> // for _stat +#include <sys/stat.h> // " +#include <process.h> // for _beginthreadex() +#ifdef __BORLANDC__ +# include <cmath.h> // for orientation +#else +# include <math.h> // " +#endif +#include <mmreg.h> // for WAVEFORMATEXTENSIBLE +#include <mmsystem.h> // for timeGetTime() + +// apparently not defined in some compilers: +#ifndef min +# define min(a,b) (((a) < (b)) ? (a) : (b)) +#endif +// ------------------------------------------------------------------------------------ +// helpers +// ------------------------------------------------------------------------------------ +template<class T> inline T sign (const T& val) { return (val<0)? T(-1) : T(1); } +template<class T> inline T square(const T& val) { return val*val; } +#define ARRAY_ENTRIES(array) (sizeof(array)/sizeof(array[0])) + +// ------------------------------------------------------------------------------------ +// Tracing & Debugging +// ------------------------------------------------------------------------------------ +#define PREFIX _T("WiiYourself! : ") + +// comment these to auto-strip their code from the library: +// (they currently use OutputDebugString() via _TRACE() - change to suit) +#if (_MSC_VER >= 1400) // VC 2005+ (earlier versions don't support variable args) +# define TRACE(fmt, ...) _TRACE(PREFIX fmt _T("\n"), __VA_ARGS__) +# define WARN(fmt, ...) _TRACE(PREFIX _T("* ") fmt _T(" *") _T("\n"), __VA_ARGS__) +#elif defined(__MINGW32__) +# define TRACE(fmt, ...) _TRACE(PREFIX fmt _T("\n") , ##__VA_ARGS__) +# define WARN(fmt, ...) _TRACE(PREFIX _T("* ") fmt _T(" *") _T("\n") , ##__VA_ARGS__) +#endif +// uncomment any of these for deeper debugging: +//#define DEEP_TRACE(fmt, ...) _TRACE(PREFIX _T("|") fmt _T("\n"), __VA_ARGS__) // VC 2005+ +//#define DEEP_TRACE(fmt, ...) _TRACE(PREFIX _T("|") fmt _T("\n") , ##__VA_ARGS__) // mingw +//#define BEEP_DEBUG_READS +//#define BEEP_DEBUG_WRITES +//#define BEEP_ON_ORIENTATION_ESTIMATE +//#define BEEP_ON_PERIODIC_STATUSREFRESH + +// internals: auto-strip code from the macros if they weren't defined +#ifndef TRACE +# define TRACE +#endif +#ifndef DEEP_TRACE +# define DEEP_TRACE +#endif +#ifndef WARN +# define WARN +#endif +// ------------------------------------------------------------------------------------ +static void _cdecl _TRACE (const TCHAR* fmt, ...) + { + static TCHAR buffer[256]; + if (!fmt) return; + + va_list argptr; + va_start (argptr, fmt); +#if (_MSC_VER >= 1400) // VC 2005+ + _vsntprintf_s(buffer, ARRAY_ENTRIES(buffer), _TRUNCATE, fmt, argptr); +#else + _vsntprintf (buffer, ARRAY_ENTRIES(buffer), fmt, argptr); +#endif + va_end (argptr); + + OutputDebugString(buffer); + } + +// ------------------------------------------------------------------------------------ +// wiimote +// ------------------------------------------------------------------------------------ +// class statics +HMODULE wiimote::HidDLL = NULL; +unsigned wiimote::_TotalCreated = 0; +unsigned wiimote::_TotalConnected = 0; +hidwrite_ptr wiimote::_HidD_SetOutputReport = NULL; + +// (keep in sync with 'speaker_freq'): +const unsigned wiimote::FreqLookup [TOTAL_FREQUENCIES] = + { 0, 4200, 3920, 3640, 3360, + 3130, 2940, 2760, 2610, 2470 }; + +const TCHAR* wiimote::ButtonNameFromBit [TOTAL_BUTTON_BITS] = + { _T("Left") , _T("Right"), _T("Down"), _T("Up"), + _T("Plus") , _T("??") , _T("??") , _T("??") , + _T("Two") , _T("One") , _T("B") , _T("A") , + _T("Minus"), _T("??") , _T("??") , _T("Home") }; + +const TCHAR* wiimote::ClassicButtonNameFromBit [TOTAL_BUTTON_BITS] = + { _T("??") , _T("TrigR") , _T("Plus") , _T("Home"), + _T("Minus"), _T("TrigL") , _T("Down") , _T("Right") , + _T("Up") , _T("Left") , _T("ZR") , _T("X") , + _T("A") , _T("Y") , _T("B") , _T("ZL") }; +// ------------------------------------------------------------------------------------ +wiimote::wiimote () + : + DataRead (CreateEvent(NULL, FALSE, FALSE, NULL)), + Handle (INVALID_HANDLE_VALUE), + ReportType (IN_BUTTONS), + bStatusReceived (false), // for output method detection + bConnectInProgress (true ), + bInitInProgress (false), + bEnablingMotionPlus (false), + bConnectionLost (false), // set if write fails after connection + bMotionPlusDetected (false), + bMotionPlusEnabled (false), + bMotionPlusExtension (false), + bCalibrateAtRest (false), + bUseHIDwrite (false), // if OS supports it + ChangedCallback (NULL), + CallbackTriggerFlags (CHANGED_ALL), + InternalChanged (NO_CHANGE), + CurrentSample (NULL), + HIDwriteThread (NULL), + ReadParseThread (NULL), + SampleThread (NULL), + AsyncRumbleThread (NULL), + AsyncRumbleTimeout (0), + UniqueID (0) // not _guaranteed_ unique, see comments in header +#ifdef ID2_FROM_DEVICEPATH // (see comments in header) + // UniqueID2 (0) +#endif + { + _ASSERT(DataRead != INVALID_HANDLE_VALUE); + + // if this is the first wiimote object, detect & enable HID write support + if(++_TotalCreated == 1) + { + HidDLL = LoadLibrary(_T("hid.dll")); + _ASSERT(HidDLL); + if(!HidDLL) + WARN(_T("Couldn't load hid.dll - shouldn't happen!")); + else{ + _HidD_SetOutputReport = (hidwrite_ptr) + GetProcAddress(HidDLL, "HidD_SetOutputReport"); + if(_HidD_SetOutputReport) + TRACE(_T("OS supports HID writes.")); + else + TRACE(_T("OS doesn't support HID writes.")); + } + } + + // clear our public and private state data completely (including deadzones) + Clear (true); + Internal.Clear(true); + + // and the state recording vars + memset(&Recording, 0, sizeof(Recording)); + + // for overlapped IO (Read/WriteFile) + memset(&Overlapped, 0, sizeof(Overlapped)); + Overlapped.hEvent = DataRead; + Overlapped.Offset = + Overlapped.OffsetHigh = 0; + + // for async HID output method + InitializeCriticalSection(&HIDwriteQueueLock); + // for polling + InitializeCriticalSection(&StateLock); + + // request millisecond timer accuracy + timeBeginPeriod(1); + } +// ------------------------------------------------------------------------------------ +wiimote::~wiimote () + { + Disconnect(); + + // events & critical sections are kept open for the lifetime of the object, + // so tidy them up here: + if(DataRead != INVALID_HANDLE_VALUE) + CloseHandle(DataRead); + + DeleteCriticalSection(&HIDwriteQueueLock); + DeleteCriticalSection(&StateLock); + + // tidy up timer accuracy request + timeEndPeriod(1); + + // release HID DLL (for dynamic HID write method) + if((--_TotalCreated == 0) && HidDLL) + { + FreeLibrary(HidDLL); + HidDLL = NULL; + _HidD_SetOutputReport = NULL; + } + } + +// ------------------------------------------------------------------------------------ +bool wiimote::Connect (unsigned wiimote_index, bool force_hidwrites) + { + if(wiimote_index == FIRST_AVAILABLE) + TRACE(_T("Connecting first available Wiimote:")); + else + TRACE(_T("Connecting Wiimote %u:"), wiimote_index); + + // auto-disconnect if user is being naughty + if(IsConnected()) + Disconnect(); + + // get the GUID of the HID class + GUID guid; + HidD_GetHidGuid(&guid); + + // get a handle to all devices that are part of the HID class + // Brian: Fun fact: DIGCF_PRESENT worked on my machine just fine. I reinstalled + // Vista, and now it no longer finds the Wiimote with that parameter enabled... + HDEVINFO dev_info = SetupDiGetClassDevs(&guid, NULL, NULL, DIGCF_DEVICEINTERFACE);// | DIGCF_PRESENT); + if(!dev_info) { + WARN(_T("couldn't get device info")); + return false; + } + + // enumerate the devices + SP_DEVICE_INTERFACE_DATA didata; + didata.cbSize = sizeof(didata); + + unsigned index = 0; + unsigned wiimotes_found = 0; + while(SetupDiEnumDeviceInterfaces(dev_info, NULL, &guid, index, &didata)) + { + // get the buffer size for this device detail instance + DWORD req_size = 0; + SetupDiGetDeviceInterfaceDetail(dev_info, &didata, NULL, 0, &req_size, NULL); + + // (bizarre way of doing it) create a buffer large enough to hold the + // fixed-size detail struct components, and the variable string size + SP_DEVICE_INTERFACE_DETAIL_DATA *didetail = + (SP_DEVICE_INTERFACE_DETAIL_DATA*) new BYTE[req_size]; + _ASSERT(didetail); + didetail->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA); + + // now actually get the detail struct + if(!SetupDiGetDeviceInterfaceDetail(dev_info, &didata, didetail, + req_size, &req_size, NULL)) { + WARN(_T("couldn't get devinterface info for %u"), index); + break; + } + + // open a shared handle to the device to query it (this will succeed even + // if the wiimote is already Connect()'ed) + DEEP_TRACE(_T(".. querying device %s"), didetail->DevicePath); + Handle = CreateFile(didetail->DevicePath, 0, FILE_SHARE_READ|FILE_SHARE_WRITE, + NULL, OPEN_EXISTING, 0, NULL); + if(Handle == INVALID_HANDLE_VALUE) { + DEEP_TRACE(_T(".... failed with err %x (probably harmless)."), + GetLastError()); + goto skip; + } + + // get the device attributes + HIDD_ATTRIBUTES attrib; + attrib.Size = sizeof(attrib); + if(HidD_GetAttributes(Handle, &attrib)) + { + // is this a wiimote? + if((attrib.VendorID != VID) || (attrib.ProductID != PID)) + goto skip; + + // yes, but is it the one we're interested in? + ++wiimotes_found; + if((wiimote_index != FIRST_AVAILABLE) && + (wiimote_index != wiimotes_found)) + goto skip; + + // the wiimote is installed, but it may not be currently paired: + if(wiimote_index == FIRST_AVAILABLE) + TRACE(_T(".. opening Wiimote %u:"), wiimotes_found); + else + TRACE(_T(".. opening:")); + + + // re-open the handle, but this time we don't allow write sharing + // (that way subsequent calls can still _discover_ wiimotes above, but + // will correctly fail here if they're already connected) + CloseHandle(Handle); + + // note this also means that if another application has already opened + // the device, the library can no longer connect it (this may happen + // with software that enumerates all joysticks in the system, because + // even though the wiimote is not a standard joystick (and can't + // be read as such), it unfortunately announces itself to the OS + // as one. The SDL library was known to do grab wiimotes like this. + // If you cannot stop the application from doing it, you may change the + // call below to open the device in full shared mode - but then the + // library can no longer detect if you've already connected a device + // and will allow you to connect it twice! So be careful ... + Handle = CreateFile(didetail->DevicePath, GENERIC_READ|GENERIC_WRITE, + FILE_SHARE_READ| FILE_SHARE_WRITE, + NULL, OPEN_EXISTING, + FILE_FLAG_OVERLAPPED, NULL); + if(Handle == INVALID_HANDLE_VALUE) { + TRACE(_T(".... failed with err %x"), GetLastError()); + goto skip; + } + + // clear the wiimote state & buffers + Clear (false); // preserves existing deadzones + Internal.Clear(false); // " + InternalChanged = NO_CHANGE; + memset(ReadBuff , 0, sizeof(ReadBuff)); + bConnectionLost = false; + bConnectInProgress = true; // don't parse extensions or request regular + // updates until complete + // enable async reading + BeginAsyncRead(); + + // autodetect which write method the Bluetooth stack supports, + // by requesting the wiimote status report: + if(force_hidwrites && !_HidD_SetOutputReport) { + TRACE(_T(".. can't force HID writes (not supported)")); + force_hidwrites = false; + } + + if(force_hidwrites) + TRACE(_T(".. (HID writes forced)")); + else{ + // - try WriteFile() first as it's the most efficient (it uses + // harware interrupts where possible and is async-capable): + bUseHIDwrite = false; + RequestStatusReport(); + // and wait for the report to arrive: + DWORD last_time = timeGetTime(); + while(!bStatusReceived && ((timeGetTime()-last_time) < 500)) + Sleep(10); + TRACE(_T(".. WriteFile() %s."), bStatusReceived? _T("succeeded") : + _T("failed")); + } + + // try HID write method (if supported) + if(!bStatusReceived && _HidD_SetOutputReport) + { + bUseHIDwrite = true; + RequestStatusReport(); + // wait for the report to arrive: + DWORD last_time = timeGetTime(); + while(!bStatusReceived && ((timeGetTime()-last_time) < 500)) + Sleep(10); + // did we get it? + TRACE(_T(".. HID write %s."), bStatusReceived? _T("succeeded") : + _T("failed")); + } + + // still failed? + if(!bStatusReceived) { + WARN(_T("output failed - wiimote is not connected (or confused).")); + Disconnect(); + goto skip; + } + +//Sleep(500); + // reset it + Reset(); + + // read the wiimote calibration info + ReadCalibration(); + + // allow the result(s) to come in (so that the caller can immediately test + // MotionPlusConnected() + Sleep(300); // note, don't need it on my system, better to be safe though + + // connected succesfully: + _TotalConnected++; + + // use the first incomding analogue sensor values as the 'at rest' + // offsets (only supports the Balance Board currently) + bCalibrateAtRest = true; + + // refresh the public state from the internal one (so that everything + // is available straight away + RefreshState(); + + // attempt to construct a unique hardware ID from the calibration + // data bytes (this is obviously not guaranteed to be unique across + // all devices, but may work fairly well in practice... ?) + memcpy(&UniqueID, &CalibrationInfo, sizeof(CalibrationInfo)); + + _ASSERT(UniqueID != 0); // if this fires, the calibration data didn't + // arrive - this shouldn't happen + +#ifdef ID2_FROM_DEVICEPATH // (see comments in header) + // create a 2nd alternative id by simply adding all the characters + // in the device path to create a single number + UniqueID2 = 0; + for(unsigned index=0; index<_tcslen(didetail->DevicePath); index++) + UniqueID2 += didetail->DevicePath[index]; +#endif + // and show when we want to trigger the next periodic status request + // (for battery level and connection loss detection) + NextStatusTime = timeGetTime() + REQUEST_STATUS_EVERY_MS; + NextMPlusDetectTime = timeGetTime() + DETECT_MPLUS_EVERY_MS; + MPlusDetectCount = DETECT_MPLUS_COUNT; + + // tidy up + delete[] (BYTE*)didetail; + break; + } +skip: + // tidy up + delete[] (BYTE*)didetail; + + if(Handle != INVALID_HANDLE_VALUE) { + CloseHandle(Handle); + Handle = INVALID_HANDLE_VALUE; + } + // if this was the specified wiimote index, abort + if((wiimote_index != FIRST_AVAILABLE) && + (wiimote_index == (wiimotes_found-1))) + break; + + index++; + } + + // clean up our list + SetupDiDestroyDeviceInfoList(dev_info); + + bConnectInProgress = false; + if(IsConnected()) { + TRACE(_T(".. connected!")); + // notify the callbacks (if requested to do so) + if(CallbackTriggerFlags & CONNECTED) + { + ChangedNotifier(CONNECTED, Internal); + if(ChangedCallback) + ChangedCallback(*this, CONNECTED, Internal); + } + return true; + } + TRACE(_T(".. connection failed.")); + return false; + } +// ------------------------------------------------------------------------------------ +void wiimote::CalibrateAtRest () + { + _ASSERT(IsConnected()); + if(!IsConnected()) + return; + + // the app calls this to remove 'at rest' offsets from the analogue sensor + // values (currently only works for the Balance Board): + if(IsBalanceBoard()) { + TRACE(_T(".. removing 'at rest' BBoard offsets.")); + Internal.BalanceBoard.AtRestKg = Internal.BalanceBoard.Kg; + RefreshState(); + } + } +// ------------------------------------------------------------------------------------ +void wiimote::Disconnect () + { + if(Handle == INVALID_HANDLE_VALUE) + return; + + TRACE(_T("Disconnect().")); + + if(IsConnected()) + { + _ASSERT(_TotalConnected > 0); // sanity + _TotalConnected--; + + if(!bConnectionLost) + Reset(); + } + + CloseHandle(Handle); + Handle = INVALID_HANDLE_VALUE; + UniqueID = 0; +#ifdef ID2_FROM_DEVICEPATH // (see comments in header) + UniqueID2 = 0; +#endif + + // close the read thread + if(ReadParseThread) { + // unblock it so it can realise we're closing and exit straight away + SetEvent(DataRead); + WaitForSingleObject(ReadParseThread, 3000); + CloseHandle(ReadParseThread); + ReadParseThread = NULL; + } + // close the rumble thread + if(AsyncRumbleThread) { + WaitForSingleObject(AsyncRumbleThread, 3000); + CloseHandle(AsyncRumbleThread); + AsyncRumbleThread = NULL; + AsyncRumbleTimeout = 0; + } + // and the sample streaming thread + if(SampleThread) { + WaitForSingleObject(SampleThread, 3000); + CloseHandle(SampleThread); + SampleThread = NULL; + } + +#ifndef USE_DYNAMIC_HIDQUEUE + HID.Deallocate(); +#endif + + bStatusReceived = false; + + // and clear the state + Clear (false); // (preserves deadzones) + Internal.Clear(false); // " + InternalChanged = NO_CHANGE; + } +// ------------------------------------------------------------------------------------ +void wiimote::Reset () + { + TRACE(_T("Resetting wiimote.")); + + if(bMotionPlusEnabled) + DisableMotionPlus(); + + // stop updates (by setting report type to non-continuous, buttons-only) + if(IsBalanceBoard()) + SetReportType(IN_BUTTONS_BALANCE_BOARD, false); + else + SetReportType(IN_BUTTONS, false); + + SetRumble (false); + SetLEDs (0x00); +// MuteSpeaker (true); + EnableSpeaker(false); + + Sleep(150); // avoids loosing the extension calibration data on Connect() + } +// ------------------------------------------------------------------------------------ +unsigned __stdcall wiimote::ReadParseThreadfunc (void* param) + { + // this thread waits for the async ReadFile() to deliver data & parses it. + // it also requests periodic status updates, deals with connection loss + // and ends state recordings with a specific duration: + _ASSERT(param); + wiimote &remote = *(wiimote*)param; + OVERLAPPED &overlapped = remote.Overlapped; + unsigned exit_code = 0; // (success) + + while(1) + { + // wait until the overlapped read completes, or the timeout is reached: + DWORD wait = WaitForSingleObject(overlapped.hEvent, 500); + + // before we deal with the result, let's do some housekeeping: + + // if we were recently Disconect()ed, exit now + if(remote.Handle == INVALID_HANDLE_VALUE) { + DEEP_TRACE(_T("read thread: wiimote was disconnected")); + break; + } + // ditto if the connection was lost (eg. through a failed write) + if(remote.bConnectionLost) + { +connection_lost: + TRACE(_T("read thread: connection to wiimote was lost")); + remote.Disconnect(); + remote.InternalChanged = (state_change_flags) + (remote.InternalChanged | CONNECTION_LOST); + // report via the callback (if any) + if(remote.CallbackTriggerFlags & CONNECTION_LOST) + { + remote.ChangedNotifier(CONNECTION_LOST, remote.Internal); + if(remote.ChangedCallback) + remote.ChangedCallback(remote, CONNECTION_LOST, remote.Internal); + } + break; + } + + DWORD time = timeGetTime(); + // periodic events (but not if we're streaming audio, + // we don't want to cause a glitch) + if(remote.IsConnected() && !remote.bInitInProgress && + !remote.IsPlayingAudio()) + { + // status request due? + if(time > remote.NextStatusTime) + { +#ifdef BEEP_ON_PERIODIC_STATUSREFRESH + Beep(2000,50); +#endif + remote.RequestStatusReport(); + // and schedule the next one + remote.NextStatusTime = time + REQUEST_STATUS_EVERY_MS; + } + // motion plus detection due? + if(!remote.IsBalanceBoard() && +// !remote.bConnectInProgress && + !remote.bMotionPlusExtension && + (remote.Internal.ExtensionType != MOTION_PLUS) && + (remote.Internal.ExtensionType != PARTIALLY_INSERTED) && + (time > remote.NextMPlusDetectTime)) + { + remote.DetectMotionPlusExtensionAsync(); + // we try several times in quick succession before the next + // delay: + if(--remote.MPlusDetectCount == 0) { + remote.NextMPlusDetectTime = time + DETECT_MPLUS_EVERY_MS; + remote.MPlusDetectCount = DETECT_MPLUS_COUNT; +#ifdef _DEBUG + TRACE(_T("--")); +#endif + } + } + } + + // if we're state recording and have reached the specified duration, stop + if(remote.Recording.bEnabled && (remote.Recording.EndTimeMS != UNTIL_STOP) && + (time >= remote.Recording.EndTimeMS)) + remote.Recording.bEnabled = false; + + // now handle the wait result: + // did the wait time out? + if(wait == WAIT_TIMEOUT) { + DEEP_TRACE(_T("read thread: timed out")); + continue; // wait again + } + // did an error occurr? + if(wait != WAIT_OBJECT_0) { + DEEP_TRACE(_T("read thread: error waiting!")); + remote.bConnectionLost = true; + // deal with it straight away to avoid a longer delay + goto connection_lost; + } + + // data was received: +#ifdef BEEP_DEBUG_READS + Beep(500,1); +#endif + DWORD read = 0; + // get the data read result + GetOverlappedResult(remote.Handle, &overlapped, &read, TRUE); + // if we read data, parse it + if(read) { + DEEP_TRACE(_T("read thread: parsing data")); + remote.OnReadData(read); + } + else + DEEP_TRACE(_T("read thread: didn't get any data??")); + } + + TRACE(_T("(ending read thread)")); +#ifdef BEEP_DEBUG_READS + if(exit_code != 0) + Beep(200,1000); +#endif + return exit_code; + } +// ------------------------------------------------------------------------------------ +bool wiimote::BeginAsyncRead () + { + // (this is also called before we're fully connected) + if(Handle == INVALID_HANDLE_VALUE) + return false; + + DEEP_TRACE(_T(".. starting async read")); +#ifdef BEEP_DEBUG_READS + Beep(1000,1); +#endif + + DWORD read; + if (!ReadFile(Handle, ReadBuff, REPORT_LENGTH, &read, &Overlapped)) { + DWORD err = GetLastError(); + if(err != ERROR_IO_PENDING) { + DEEP_TRACE(_T(".... ** ReadFile() failed! **")); + return false; + } + } + + // launch the completion wait/callback thread + if(!ReadParseThread) { + ReadParseThread = (HANDLE)_beginthreadex(NULL, 0, ReadParseThreadfunc, + this, 0, NULL); + DEEP_TRACE(_T(".... creating read thread")); + _ASSERT(ReadParseThread); + if(!ReadParseThread) + return false; + SetThreadPriority(ReadParseThread, WORKER_THREAD_PRIORITY); + } + + // if ReadFile completed while we called, signal the thread to proceed + if(read) { + DEEP_TRACE(_T(".... got data right away")); + SetEvent(DataRead); + } + return true; + } +// ------------------------------------------------------------------------------------ +void wiimote::OnReadData (DWORD bytes_read) + { + _ASSERT(bytes_read == REPORT_LENGTH); + + // copy our input buffer + BYTE buff [REPORT_LENGTH]; + memcpy(buff, ReadBuff, bytes_read); + + // start reading again + BeginAsyncRead(); + + // parse it + ParseInput(buff); + } +// ------------------------------------------------------------------------------------ +void wiimote::SetReportType (input_report type, bool continuous) + { + _ASSERT(IsConnected()); + if(!IsConnected()) + return; + + // the balance board only uses one type of report + _ASSERT(!IsBalanceBoard() || type == IN_BUTTONS_BALANCE_BOARD); + if(IsBalanceBoard() && (type != IN_BUTTONS_BALANCE_BOARD)) + return; + +#ifdef TRACE + #define TYPE2NAME(_type) (type==_type)? _T(#_type) + const TCHAR* name = TYPE2NAME(IN_BUTTONS) : + TYPE2NAME(IN_BUTTONS_ACCEL_IR) : + TYPE2NAME(IN_BUTTONS_ACCEL_EXT) : + TYPE2NAME(IN_BUTTONS_ACCEL_IR_EXT) : + TYPE2NAME(IN_BUTTONS_BALANCE_BOARD) : + _T("(unknown??)"); + TRACE(_T("ReportType: %s (%s)"), name, (continuous? _T("continuous") : + _T("non-continuous"))); +#endif + ReportType = type; + + switch(type) + { + case IN_BUTTONS_ACCEL_IR: + EnableIR(wiimote_state::ir::EXTENDED); + break; + case IN_BUTTONS_ACCEL_IR_EXT: + EnableIR(wiimote_state::ir::BASIC); + break; + default: + DisableIR(); + break; + } + + BYTE buff [REPORT_LENGTH] = {0}; + buff[0] = OUT_TYPE; + buff[1] = (continuous ? 0x04 : 0x00) | GetRumbleBit(); + buff[2] = (BYTE)type; + WriteReport(buff); +// Sleep(15); + } +// ------------------------------------------------------------------------------------ +void wiimote::SetLEDs (BYTE led_bits) + { + _ASSERT(IsConnected()); + if(!IsConnected() || bInitInProgress) + return; + + _ASSERT(led_bits <= 0x0f); + led_bits &= 0xf; + + BYTE buff [REPORT_LENGTH] = {0}; + buff[0] = OUT_LEDs; + buff[1] = (led_bits<<4) | GetRumbleBit(); + WriteReport(buff); + + Internal.LED.Bits = led_bits; + } +// ------------------------------------------------------------------------------------ +void wiimote::SetRumble (bool on) + { + _ASSERT(IsConnected()); + if(!IsConnected()) + return; + + if(Internal.bRumble == on) + return; + + Internal.bRumble = on; + + // if we're streaming audio, we don't need to send a report (sending it makes + // the audio glitch, and the rumble bit is sent with every report anyway) + if(IsPlayingAudio()) + return; + + BYTE buff [REPORT_LENGTH] = {0}; + buff[0] = OUT_STATUS; + buff[1] = on? 0x01 : 0x00; + WriteReport(buff); + } +// ------------------------------------------------------------------------------------ +unsigned __stdcall wiimote::AsyncRumbleThreadfunc (void* param) + { + // auto-disables rumble after x milliseconds: + _ASSERT(param); + wiimote &remote = *(wiimote*)param; + + while(remote.IsConnected()) + { + if(remote.AsyncRumbleTimeout) + { + DWORD current_time = timeGetTime(); + if(current_time >= remote.AsyncRumbleTimeout) + { + if(remote.Internal.bRumble) + remote.SetRumble(false); + remote.AsyncRumbleTimeout = 0; + } + Sleep(1); + } + else + Sleep(4); + } + return 0; + } +// ------------------------------------------------------------------------------------ +void wiimote::RumbleForAsync (unsigned milliseconds) + { + // rumble for a fixed amount of time + _ASSERT(IsConnected()); + if(!IsConnected()) + return; + + SetRumble(true); + + // show how long thread should wait to disable rumble again + // (it it's currently rumbling it will just extend the time) + AsyncRumbleTimeout = timeGetTime() + milliseconds; + + // create the thread? + if(AsyncRumbleThread) + return; + + AsyncRumbleThread = (HANDLE)_beginthreadex(NULL, 0, AsyncRumbleThreadfunc, this, + 0, NULL); + _ASSERT(AsyncRumbleThread); + if(!AsyncRumbleThread) { + WARN(_T("couldn't create rumble thread!")); + return; + } + SetThreadPriority(AsyncRumbleThread, WORKER_THREAD_PRIORITY); + } +// ------------------------------------------------------------------------------------ +void wiimote::RequestStatusReport () + { + // (this can be called before we're fully connected) + _ASSERT(Handle != INVALID_HANDLE_VALUE); + if(Handle == INVALID_HANDLE_VALUE) + return; + + BYTE buff [REPORT_LENGTH] = {0}; + buff[0] = OUT_STATUS; + buff[1] = GetRumbleBit(); + WriteReport(buff); + } +// ------------------------------------------------------------------------------------ +bool wiimote::ReadAddress (int address, short size) + { + // asynchronous + BYTE buff [REPORT_LENGTH] = {0}; + buff[0] = OUT_READMEMORY; + buff[1] = (BYTE)(((address & 0xff000000) >> 24) | GetRumbleBit()); + buff[2] = (BYTE)( (address & 0x00ff0000) >> 16); + buff[3] = (BYTE)( (address & 0x0000ff00) >> 8); + buff[4] = (BYTE)( (address & 0x000000ff)); + buff[5] = (BYTE)( (size & 0xff00 ) >> 8); + buff[6] = (BYTE)( (size & 0xff)); + return WriteReport(buff); + } +// ------------------------------------------------------------------------------------ +void wiimote::WriteData (int address, BYTE size, const BYTE* buff) + { + // asynchronous + BYTE write [REPORT_LENGTH] = {0}; + write[0] = OUT_WRITEMEMORY; + write[1] = (BYTE)(((address & 0xff000000) >> 24) | GetRumbleBit()); + write[2] = (BYTE)( (address & 0x00ff0000) >> 16); + write[3] = (BYTE)( (address & 0x0000ff00) >> 8); + write[4] = (BYTE)( (address & 0x000000ff)); + write[5] = size; + memcpy(write+6, buff, size); + WriteReport(write); + } +// ------------------------------------------------------------------------------------ +int wiimote::ParseInput (BYTE* buff) + { + int changed = 0; + + // lock our internal state (so RefreshState() is blocked until we're done + EnterCriticalSection(&StateLock); + + switch(buff[0]) + { + case IN_BUTTONS: + DEEP_TRACE(_T(".. parsing buttons.")); + changed |= ParseButtons(buff); + break; + + case IN_BUTTONS_ACCEL: + DEEP_TRACE(_T(".. parsing buttons/accel.")); + changed |= ParseButtons(buff); + if(!IsBalanceBoard()) + changed |= ParseAccel(buff); + break; + + case IN_BUTTONS_ACCEL_EXT: + DEEP_TRACE(_T(".. parsing extenion/accel.")); + changed |= ParseButtons(buff); + changed |= ParseExtension(buff, 6); + if(!IsBalanceBoard()) + changed |= ParseAccel(buff); + break; + + case IN_BUTTONS_ACCEL_IR: + DEEP_TRACE(_T(".. parsing ir/accel.")); + changed |= ParseButtons(buff); + if(!IsBalanceBoard()) { + changed |= ParseAccel(buff); + changed |= ParseIR(buff); + } + break; + + case IN_BUTTONS_ACCEL_IR_EXT: + DEEP_TRACE(_T(".. parsing ir/extenion/accel.")); + changed |= ParseButtons(buff); + changed |= ParseExtension(buff, 16); + if(!IsBalanceBoard()) { + changed |= ParseAccel(buff); + changed |= ParseIR (buff); + } + break; + + case IN_BUTTONS_BALANCE_BOARD: + DEEP_TRACE(_T(".. parsing buttson/balance.")); + changed |= ParseButtons(buff); + changed |= ParseExtension(buff, 3); + break; + + case IN_READADDRESS: + DEEP_TRACE(_T(".. parsing read address.")); + changed |= ParseButtons (buff); + changed |= ParseReadAddress(buff); + break; + + case IN_STATUS: + DEEP_TRACE(_T(".. parsing status.")); + changed |= ParseStatus(buff); + // show that we received the status report (used for output method + // detection during Connect()) + bStatusReceived = true; + break; + + default: + DEEP_TRACE(_T(".. ** unknown input ** (happens).")); + ///_ASSERT(0); + //Debug.WriteLine("Unknown report type: " + type.ToString()); + LeaveCriticalSection(&StateLock); + return false; + } + + // if we're recording and some state we care about has changed, insert it into + // the state history + if(Recording.bEnabled && (changed & Recording.TriggerFlags)) + { + DEEP_TRACE(_T(".. adding state to history")); + state_event event; + event.time_ms = timeGetTime(); + event.state = *(wiimote_state*)this; + Recording.StateHistory->push_back(event); + } + + // for polling: show which state has changed since the last RefreshState() + InternalChanged = (state_change_flags)(InternalChanged | changed); + + LeaveCriticalSection(&StateLock); + + // callbacks: call it (if set & state the app is interested in has changed) + if(changed & CallbackTriggerFlags) + { + DEEP_TRACE(_T(".. calling state change callback")); + ChangedNotifier((state_change_flags)changed, Internal); + if(ChangedCallback) + ChangedCallback(*this, (state_change_flags)changed, Internal); + } + + DEEP_TRACE(_T(".. parse complete.")); + return true; + } +// ------------------------------------------------------------------------------------ +state_change_flags wiimote::RefreshState () + { + // nothing changed since the last call? + if(InternalChanged == NO_CHANGE) + return NO_CHANGE; + + // copy the internal state to our public data members: + // synchronise the interal state with the read/parse thread (we don't want + // values changing during the copy) + EnterCriticalSection(&StateLock); + + // remember which state changed since the last call + state_change_flags changed = InternalChanged; + + // preserve the application-set deadzones (if any) + joystick::deadzone nunchuk_deadzone = Nunchuk.Joystick.DeadZone; + joystick::deadzone classic_joyl_deadzone = ClassicController.JoystickL.DeadZone; + joystick::deadzone classic_joyr_deadzone = ClassicController.JoystickR.DeadZone; + + // copy the internal state to the public one + *(wiimote_state*)this = Internal; + InternalChanged = NO_CHANGE; + + // restore the application-set deadzones + Nunchuk.Joystick.DeadZone = nunchuk_deadzone; + ClassicController.JoystickL.DeadZone = classic_joyl_deadzone; + ClassicController.JoystickR.DeadZone = classic_joyr_deadzone; + + LeaveCriticalSection(&StateLock); + + return changed; + } +// ------------------------------------------------------------------------------------ +void wiimote::DetectMotionPlusExtensionAsync () + { +#ifdef _DEBUG + TRACE(_T("(looking for motion plus)")); +#endif + // show that we're expecting the result shortly + MotionPlusDetectCount++; + // MotionPLus reports at a different address than other extensions (until + // activated, when it maps itself into the usual extension registers), so + // try to detect it first: + ReadAddress(REGISTER_MOTIONPLUS_DETECT, 6); + } +// ------------------------------------------------------------------------------------ +bool wiimote::EnableMotionPlus () + { + _ASSERT(bMotionPlusDetected); + if(!bMotionPlusDetected) + return false; + if(bMotionPlusEnabled) + return true; + + TRACE(_T("Enabling Motion Plus:")); + + bMotionPlusExtension = false; + bInitInProgress = true; + bEnablingMotionPlus = true; + + // Initialize it: + WriteData(REGISTER_MOTIONPLUS_INIT , 0x55); +// Sleep(50); + // Enable it (this maps it to the standard extension port): + WriteData(REGISTER_MOTIONPLUS_ENABLE, 0x04); +// Sleep(50); +Sleep(500); + return true; + } +// ------------------------------------------------------------------------------------ +bool wiimote::DisableMotionPlus () + { + if(!bMotionPlusDetected || !bMotionPlusEnabled) + return false; + + TRACE(_T("Disabling Motion Plus:")); + + // disable it (this makes standard extensions visible again) + WriteData(REGISTER_EXTENSION_INIT1, 0x55); + return true; + } +// ------------------------------------------------------------------------------------ +void wiimote::InitializeExtension () + { + TRACE(_T("Initialising Extension.")); + // wibrew.org: The new way to initialize the extension is by writing 0x55 to + // 0x(4)A400F0, then writing 0x00 to 0x(4)A400FB. It works on all extensions, and + // makes the extension type bytes unencrypted. This means that you no longer have + // to decrypt the extension bytes using the transform listed above. + bInitInProgress = true; +_ASSERT(Internal.bExtension); + // only initialize if it's not a MotionPlus + if(!bEnablingMotionPlus) { + WriteData (REGISTER_EXTENSION_INIT1, 0x55); + WriteData (REGISTER_EXTENSION_INIT2, 0x00); + } + else + bEnablingMotionPlus = false; + + ReadAddress(REGISTER_EXTENSION_TYPE , 6); + } +// ------------------------------------------------------------------------------------ +int wiimote::ParseStatus (BYTE* buff) + { + // parse the buttons + int changed = ParseButtons(buff); + + // get the battery level + BYTE battery_raw = buff[6]; + if(Internal.BatteryRaw != battery_raw) + changed |= BATTERY_CHANGED; + Internal.BatteryRaw = battery_raw; + // it is estimated that ~200 is the maximum battery level + Internal.BatteryPercent = battery_raw / 2; + + // there is also a flag that shows if the battery is nearly empty + bool drained = buff[3] & 0x01; + if(drained != bBatteryDrained) + { + bBatteryDrained = drained; + if(drained) + changed |= BATTERY_DRAINED; + } + + // leds + BYTE leds = buff[3] >> 4; + if(leds != Internal.LED.Bits) + changed |= LEDS_CHANGED; + Internal.LED.Bits = leds; + + // don't handle extensions until a connection is complete +// if(bConnectInProgress) +// return changed; + + bool extension = ((buff[3] & 0x02) != 0); +// TRACE(_T("(extension = %s)"), (extension? _T("TRUE") : _T("false"))); + + if(extension != Internal.bExtension) + { + if(!Internal.bExtension) + { + TRACE(_T("Extension connected:")); + Internal.bExtension = true; + InitializeExtension(); + } + else{ + TRACE(_T("Extension disconnected.")); + Internal.bExtension = false; + Internal.ExtensionType = wiimote_state::NONE; + bMotionPlusEnabled = false; + bMotionPlusExtension = false; + bMotionPlusDetected = false; + bInitInProgress = false; + bEnablingMotionPlus = false; + changed |= EXTENSION_DISCONNECTED; + // renable reports +// SetReportType(ReportType); + } + } + + return changed; + } +// ------------------------------------------------------------------------------------ +int wiimote::ParseButtons (BYTE* buff) + { + int changed = 0; + +// WORD bits = *(WORD*)(buff+1); + WORD bits = *(WORD*)(buff+1) & Button.ALL; + + if(bits != Internal.Button.Bits) + changed |= BUTTONS_CHANGED; + Internal.Button.Bits = bits; + + return changed; + } +// ------------------------------------------------------------------------------------ +bool wiimote::EstimateOrientationFrom (wiimote_state::acceleration &accel) + { + // Orientation estimate from acceleration data (shared between wiimote and nunchuk) + // return true if the orientation was updated + + // assume the controller is stationary if the acceleration vector is near + // 1g for several updates (this may not always be correct) + float length_sq = square(accel.X) + square(accel.Y) + square(accel.Z); + + // TODO: as I'm comparing _squared_ length, I really need different + // min/max epsilons... + #define DOT(x1,y1,z1, x2,y2,z2) ((x1*x2) + (y1*y2) + (z1*z2)) + + static const float epsilon = 0.2f; + if((length_sq >= (1.f-epsilon)) && (length_sq <= (1.f+epsilon))) + { + if(++WiimoteNearGUpdates < 2) + return false; + + // wiimote seems to be stationary: normalize the current acceleration + // (ie. the assumed gravity vector) + float inv_len = 1.f / sqrt(length_sq); + float x = accel.X * inv_len; + float y = accel.Y * inv_len; + float z = accel.Z * inv_len; + + // copy the values + accel.Orientation.X = x; + accel.Orientation.Y = y; + accel.Orientation.Z = z; + + // and extract pitch & roll from them: + // (may not be optimal) + float pitch = -asin(y) * 57.2957795f; +// float roll = asin(x) * 57.2957795f; + float roll = atan2(x,z) * 57.2957795f; + if(z < 0) { + pitch = (y < 0)? 180 - pitch : -180 - pitch; + roll = (x < 0)? -180 - roll : 180 - roll; + } + + accel.Orientation.Pitch = pitch; + accel.Orientation.Roll = roll; + + // show that we just updated orientation + accel.Orientation.UpdateAge = 0; +#ifdef BEEP_ON_ORIENTATION_ESTIMATE + Beep(2000, 1); +#endif + return true; // updated + } + + // not updated this time: + WiimoteNearGUpdates = 0; + // age the last orientation update + accel.Orientation.UpdateAge++; + return false; + } +// ------------------------------------------------------------------------------------ +void wiimote::ApplyJoystickDeadZones (wiimote_state::joystick &joy) + { + // apply the deadzones to each axis (if set) + if((joy.DeadZone.X > 0.f) && (joy.DeadZone.X <= 1.f)) + { + if(fabs(joy.X) <= joy.DeadZone.X) + joy.X = 0; + else{ + joy.X -= joy.DeadZone.X * sign(joy.X); + joy.X /= 1.f - joy.DeadZone.X; + } + } + if((joy.DeadZone.Y > 0.f) && (joy.DeadZone.Y <= 1.f)) + { + if(fabs(joy.Y) <= joy.DeadZone.Y) + joy.Y = 0; + else{ + joy.Y -= joy.DeadZone.Y * sign(joy.Y); + joy.Y /= 1.f - joy.DeadZone.Y; + } + } + } +// ------------------------------------------------------------------------------------ +int wiimote::ParseAccel (BYTE* buff) + { + int changed = 0; + + BYTE raw_x = buff[3]; + BYTE raw_y = buff[4]; + BYTE raw_z = buff[5]; + + if((raw_x != Internal.Acceleration.RawX) || + (raw_y != Internal.Acceleration.RawY) || + (raw_z != Internal.Acceleration.RawZ)) + changed |= ACCEL_CHANGED; + + Internal.Acceleration.RawX = raw_x; + Internal.Acceleration.RawY = raw_y; + Internal.Acceleration.RawZ = raw_z; + + // avoid / 0.0 when calibration data hasn't arrived yet + if(Internal.CalibrationInfo.X0) + { + Internal.Acceleration.X = + ((float)Internal.Acceleration.RawX - Internal.CalibrationInfo.X0) / + ((float)Internal.CalibrationInfo.XG - Internal.CalibrationInfo.X0); + Internal.Acceleration.Y = + ((float)Internal.Acceleration.RawY - Internal.CalibrationInfo.Y0) / + ((float)Internal.CalibrationInfo.YG - Internal.CalibrationInfo.Y0); + Internal.Acceleration.Z = + ((float)Internal.Acceleration.RawZ - Internal.CalibrationInfo.Z0) / + ((float)Internal.CalibrationInfo.ZG - Internal.CalibrationInfo.Z0); + } + else{ + Internal.Acceleration.X = + Internal.Acceleration.Y = + Internal.Acceleration.Z = 0.f; + } + + // see if we can estimate the orientation from the current values + if(EstimateOrientationFrom(Internal.Acceleration)) + changed |= ORIENTATION_CHANGED; + + return changed; + } +// ------------------------------------------------------------------------------------ +int wiimote::ParseIR (BYTE* buff) + { + if(Internal.IR.Mode == wiimote_state::ir::OFF) + return NO_CHANGE; + + // avoid garbage values when the MotionPlus is enabled, but the app is + // still using the extended IR report type + if(bMotionPlusEnabled && (Internal.IR.Mode == wiimote_state::ir::EXTENDED)) + return NO_CHANGE; + + // take a copy of the existing IR state (so we can detect changes) + wiimote_state::ir prev_ir = Internal.IR; + + // only updates the other values if the dots are visible (so that the last + // valid values stay unmodified) + switch(Internal.IR.Mode) + { + case wiimote_state::ir::BASIC: + // 2 dots are encoded in 5 bytes, so read 2 at a time + for(unsigned step=0; step<2; step++) + { + ir::dot &dot0 = Internal.IR.Dot[step*2 ]; + ir::dot &dot1 = Internal.IR.Dot[step*2+1]; + const unsigned offs = 6 + (step*5); // 5 bytes for 2 dots + + dot0.bVisible = !(buff[offs ] == 0xff && buff[offs+1] == 0xff); + dot1.bVisible = !(buff[offs+3] == 0xff && buff[offs+4] == 0xff); + + if(dot0.bVisible) { + dot0.RawX = buff[offs ] | ((buff[offs+2] >> 4) & 0x03) << 8;; + dot0.RawY = buff[offs+1] | ((buff[offs+2] >> 6) & 0x03) << 8;; + dot0.X = 1.f - (dot0.RawX / (float)wiimote_state::ir::MAX_RAW_X); + dot0.Y = (dot0.RawY / (float)wiimote_state::ir::MAX_RAW_Y); + } + if(dot1.bVisible) { + dot1.RawX = buff[offs+3] | ((buff[offs+2] >> 0) & 0x03) << 8; + dot1.RawY = buff[offs+4] | ((buff[offs+2] >> 2) & 0x03) << 8; + dot1.X = 1.f - (dot1.RawX / (float)wiimote_state::ir::MAX_RAW_X); + dot1.Y = (dot1.RawY / (float)wiimote_state::ir::MAX_RAW_Y); + } + } + break; + + case wiimote_state::ir::EXTENDED: + // each dot is encoded into 3 bytes + for(unsigned index=0; index<4; index++) + { + ir::dot &dot = Internal.IR.Dot[index]; + const unsigned offs = 6 + (index * 3); + + dot.bVisible = !(buff[offs ]==0xff && buff[offs+1]==0xff && + buff[offs+2]==0xff); + if(dot.bVisible) { + dot.RawX = buff[offs ] | ((buff[offs+2] >> 4) & 0x03) << 8; + dot.RawY = buff[offs+1] | ((buff[offs+2] >> 6) & 0x03) << 8; + dot.X = 1.f - (dot.RawX / (float)wiimote_state::ir::MAX_RAW_X); + dot.Y = (dot.RawY / (float)wiimote_state::ir::MAX_RAW_Y); + dot.Size = buff[offs+2] & 0x0f; + } + } + break; + + case wiimote_state::ir::FULL: + _ASSERT(0); // not supported yet; + break; + } + + return memcmp(&prev_ir, &Internal.IR, sizeof(Internal.IR))? IR_CHANGED : 0; + } +// ------------------------------------------------------------------------------------ +inline float wiimote::GetBalanceValue (short sensor, short min, short mid, short max) + { + if(max == mid || mid == min) + return 0; + + float val = (sensor < mid)? + 68.0f * ((float)(sensor - min) / (mid - min)) : + 68.0f * ((float)(sensor - mid) / (max - mid)) + 68.0f; + + // divide by four (so that each sensor is correct) + return val * 0.25f; + } +// ------------------------------------------------------------------------------------ +int wiimote::ParseExtension (BYTE *buff, unsigned offset) + { + int changed = 0; + + switch(Internal.ExtensionType) + { + case wiimote_state::NUNCHUK: + { + // buttons + bool c = (buff[offset+5] & 0x02) == 0; + bool z = (buff[offset+5] & 0x01) == 0; + + if((c != Internal.Nunchuk.C) || (z != Internal.Nunchuk.Z)) + changed |= NUNCHUK_BUTTONS_CHANGED; + + Internal.Nunchuk.C = c; + Internal.Nunchuk.Z = z; + + // acceleration + { + wiimote_state::acceleration &accel = Internal.Nunchuk.Acceleration; + + BYTE raw_x = buff[offset+2]; + BYTE raw_y = buff[offset+3]; + BYTE raw_z = buff[offset+4]; + if((raw_x != accel.RawX) || (raw_y != accel.RawY) || (raw_z != accel.RawZ)) + changed |= NUNCHUK_ACCEL_CHANGED; + + accel.RawX = raw_x; + accel.RawY = raw_y; + accel.RawZ = raw_z; + + wiimote_state::nunchuk::calibration_info &calib = + Internal.Nunchuk.CalibrationInfo; + accel.X = ((float)raw_x - calib.X0) / ((float)calib.XG - calib.X0); + accel.Y = ((float)raw_y - calib.Y0) / ((float)calib.YG - calib.Y0); + accel.Z = ((float)raw_z - calib.Z0) / ((float)calib.ZG - calib.Z0); + + // try to extract orientation from the accel: + if(EstimateOrientationFrom(accel)) + changed |= NUNCHUK_ORIENTATION_CHANGED; + } + { + // joystick: + wiimote_state::joystick &joy = Internal.Nunchuk.Joystick; + + float raw_x = buff[offset+0]; + float raw_y = buff[offset+1]; + + if((raw_x != joy.RawX) || (raw_y != joy.RawY)) + changed |= NUNCHUK_JOYSTICK_CHANGED; + + joy.RawX = raw_x; + joy.RawY = raw_y; + + // apply the calibration data + wiimote_state::nunchuk::calibration_info &calib = + Internal.Nunchuk.CalibrationInfo; + if(Internal.Nunchuk.CalibrationInfo.MaxX != 0x00) + joy.X = ((float)raw_x - calib.MidX) / ((float)calib.MaxX - calib.MinX); + if(calib.MaxY != 0x00) + joy.Y = ((float)raw_y - calib.MidY) / ((float)calib.MaxY - calib.MinY); + + // i prefer the outputs to range -1 - +1 (note this also affects the + // deadzone calculations) + joy.X *= 2; joy.Y *= 2; + + // apply the public deadzones to the internal state (if set) + joy.DeadZone = Nunchuk.Joystick.DeadZone; + ApplyJoystickDeadZones(joy); + } + } + break; + + case wiimote_state::CLASSIC: + case wiimote_state::GH3_GHWT_GUITAR: + case wiimote_state::GHWT_DRUMS: + { + // buttons: + WORD bits = *(WORD*)(buff+offset+4); + bits = ~bits; // need to invert bits since 0 is down, and 1 is up + + if(bits != Internal.ClassicController.Button.Bits) + changed |= CLASSIC_BUTTONS_CHANGED; + + Internal.ClassicController.Button.Bits = bits; + + // joysticks: + wiimote_state::joystick &joyL = Internal.ClassicController.JoystickL; + wiimote_state::joystick &joyR = Internal.ClassicController.JoystickR; + + float l_raw_x = (float) (buff[offset+0] & 0x3f); + float l_raw_y = (float) (buff[offset+1] & 0x3f); + float r_raw_x = (float)((buff[offset+2] >> 7) | + ((buff[offset+1] & 0xc0) >> 5) | + ((buff[offset+0] & 0xc0) >> 3)); + float r_raw_y = (float) (buff[offset+2] & 0x1f); + + if((joyL.RawX != l_raw_x) || (joyL.RawY != l_raw_y)) + changed |= CLASSIC_JOYSTICK_L_CHANGED; + if((joyR.RawX != r_raw_x) || (joyR.RawY != r_raw_y)) + changed |= CLASSIC_JOYSTICK_R_CHANGED; + + joyL.RawX = l_raw_x; joyL.RawY = l_raw_y; + joyR.RawX = r_raw_x; joyR.RawY = r_raw_y; + + // apply calibration + wiimote_state::classic_controller::calibration_info &calib = + Internal.ClassicController.CalibrationInfo; + if(calib.MaxXL != 0x00) + joyL.X = (joyL.RawX - calib.MidXL) / ((float)calib.MaxXL - calib.MinXL); + if(calib.MaxYL != 0x00) + joyL.Y = (joyL.RawY - calib.MidYL) / ((float)calib.MaxYL - calib.MinYL); + if(calib.MaxXR != 0x00) + joyR.X = (joyR.RawX - calib.MidXR) / ((float)calib.MaxXR - calib.MinXR); + if(calib.MaxYR != 0x00) + joyR.Y = (joyR.RawY - calib.MidYR) / ((float)calib.MaxYR - calib.MinYR); + + // i prefer the joystick outputs to range -1 - +1 (note this also affects + // the deadzone calculations) + joyL.X *= 2; joyL.Y *= 2; joyR.X *= 2; joyR.Y *= 2; + + // apply the public deadzones to the internal state (if set) + joyL.DeadZone = ClassicController.JoystickL.DeadZone; + joyR.DeadZone = ClassicController.JoystickR.DeadZone; + ApplyJoystickDeadZones(joyL); + ApplyJoystickDeadZones(joyR); + + // triggers + BYTE raw_trigger_l = ((buff[offset+2] & 0x60) >> 2) | + (buff[offset+3] >> 5); + BYTE raw_trigger_r = buff[offset+3] & 0x1f; + + if((raw_trigger_l != Internal.ClassicController.RawTriggerL) || + (raw_trigger_r != Internal.ClassicController.RawTriggerR)) + changed |= CLASSIC_TRIGGERS_CHANGED; + + Internal.ClassicController.RawTriggerL = raw_trigger_l; + Internal.ClassicController.RawTriggerR = raw_trigger_r; + + if(calib.MaxTriggerL != 0x00) + Internal.ClassicController.TriggerL = + (float)Internal.ClassicController.RawTriggerL / + ((float)calib.MaxTriggerL - calib.MinTriggerL); + if(calib.MaxTriggerR != 0x00) + Internal.ClassicController.TriggerR = + (float)Internal.ClassicController.RawTriggerR / + ((float)calib.MaxTriggerR - calib.MinTriggerR); + } + break; + + case BALANCE_BOARD: + { + wiimote_state::balance_board::sensors_raw prev_raw = + Internal.BalanceBoard.Raw; + Internal.BalanceBoard.Raw.TopR = + (short)((short)buff[offset+0] << 8 | buff[offset+1]); + Internal.BalanceBoard.Raw.BottomR = + (short)((short)buff[offset+2] << 8 | buff[offset+3]); + Internal.BalanceBoard.Raw.TopL = + (short)((short)buff[offset+4] << 8 | buff[offset+5]); + Internal.BalanceBoard.Raw.BottomL = + (short)((short)buff[offset+6] << 8 | buff[offset+7]); + + if((Internal.BalanceBoard.Raw.TopL != prev_raw.TopL) || + (Internal.BalanceBoard.Raw.TopR != prev_raw.TopR) || + (Internal.BalanceBoard.Raw.BottomL != prev_raw.BottomL) || + (Internal.BalanceBoard.Raw.BottomR != prev_raw.BottomR)) + changed |= BALANCE_WEIGHT_CHANGED; + + Internal.BalanceBoard.Kg.TopL = + GetBalanceValue(Internal.BalanceBoard.Raw.TopL, + Internal.BalanceBoard.CalibrationInfo.Kg0 .TopL, + Internal.BalanceBoard.CalibrationInfo.Kg17.TopL, + Internal.BalanceBoard.CalibrationInfo.Kg34.TopL); + Internal.BalanceBoard.Kg.TopR = + GetBalanceValue(Internal.BalanceBoard.Raw.TopR, + Internal.BalanceBoard.CalibrationInfo.Kg0 .TopR, + Internal.BalanceBoard.CalibrationInfo.Kg17.TopR, + Internal.BalanceBoard.CalibrationInfo.Kg34.TopR); + Internal.BalanceBoard.Kg.BottomL = + GetBalanceValue(Internal.BalanceBoard.Raw.BottomL, + Internal.BalanceBoard.CalibrationInfo.Kg0 .BottomL, + Internal.BalanceBoard.CalibrationInfo.Kg17.BottomL, + Internal.BalanceBoard.CalibrationInfo.Kg34.BottomL); + Internal.BalanceBoard.Kg.BottomR = + GetBalanceValue(Internal.BalanceBoard.Raw.BottomR, + Internal.BalanceBoard.CalibrationInfo.Kg0 .BottomR, + Internal.BalanceBoard.CalibrationInfo.Kg17.BottomR, + Internal.BalanceBoard.CalibrationInfo.Kg34.BottomR); + + // uses these as the 'at rest' offsets? (immediately after Connect(), + // or if the app called CalibrateAtRest()) + if(bCalibrateAtRest) { + bCalibrateAtRest = false; + TRACE(_T(".. Auto-removing 'at rest' BBoard offsets.")); + Internal.BalanceBoard.AtRestKg = Internal.BalanceBoard.Kg; + } + + // remove the 'at rest' offsets + Internal.BalanceBoard.Kg.TopL -= BalanceBoard.AtRestKg.TopL; + Internal.BalanceBoard.Kg.TopR -= BalanceBoard.AtRestKg.TopR; + Internal.BalanceBoard.Kg.BottomL -= BalanceBoard.AtRestKg.BottomL; + Internal.BalanceBoard.Kg.BottomR -= BalanceBoard.AtRestKg.BottomR; + + // compute the average + Internal.BalanceBoard.Kg.Total = Internal.BalanceBoard.Kg.TopL + + Internal.BalanceBoard.Kg.TopR + + Internal.BalanceBoard.Kg.BottomL + + Internal.BalanceBoard.Kg.BottomR; + // and convert to Lbs + const float KG2LB = 2.20462262f; + Internal.BalanceBoard.Lb = Internal.BalanceBoard.Kg; + Internal.BalanceBoard.Lb.TopL *= KG2LB; + Internal.BalanceBoard.Lb.TopR *= KG2LB; + Internal.BalanceBoard.Lb.BottomL *= KG2LB; + Internal.BalanceBoard.Lb.BottomR *= KG2LB; + Internal.BalanceBoard.Lb.Total *= KG2LB; + } + break; + + case MOTION_PLUS: + { + bMotionPlusDetected = true; + bMotionPlusEnabled = true; + + short yaw = ((unsigned short)buff[offset+3] & 0xFC)<<6 | + (unsigned short)buff[offset+0]; + short pitch = ((unsigned short)buff[offset+5] & 0xFC)<<6 | + (unsigned short)buff[offset+2]; + short roll = ((unsigned short)buff[offset+4] & 0xFC)<<6 | + (unsigned short)buff[offset+1]; + + // we get one set of bogus values when the MotionPlus is disconnected, + // so ignore them + if((yaw != 0x3fff) || (pitch != 0x3fff) || (roll != 0x3fff)) + { + wiimote_state::motion_plus::sensors_raw &raw = Internal.MotionPlus.Raw; + + if((raw.Yaw != yaw) || (raw.Pitch != pitch) || (raw.Roll != roll)) + changed |= MOTIONPLUS_SPEED_CHANGED; + + raw.Yaw = yaw; + raw.Pitch = pitch; + raw.Roll = roll; + + // convert to float values + bool yaw_slow = (buff[offset+3] & 0x2) == 0x2; + bool pitch_slow = (buff[offset+3] & 0x1) == 0x1; + bool roll_slow = (buff[offset+4] & 0x2) == 0x2; + float y_scale = yaw_slow? 0.05f : 0.25f; + float p_scale = pitch_slow? 0.05f : 0.25f; + float r_scale = roll_slow? 0.05f : 0.25f; + + Internal.MotionPlus.Speed.Yaw = -(raw.Yaw - 0x1F7F) * y_scale; + Internal.MotionPlus.Speed.Pitch = -(raw.Pitch - 0x1F7F) * p_scale; + Internal.MotionPlus.Speed.Roll = -(raw.Roll - 0x1F7F) * r_scale; + + // show if there's an extension plugged into the MotionPlus: + bool extension = buff[offset+4] & 1; + if(extension != bMotionPlusExtension) + { + if(extension) { + TRACE(_T(".. MotionPlus extension found.")); + changed |= MOTIONPLUS_EXTENSION_CONNECTED; + } + else{ + TRACE(_T(".. MotionPlus' extension disconnected.")); + changed |= MOTIONPLUS_EXTENSION_DISCONNECTED; + } + } + bMotionPlusExtension = extension; + } + // while we're getting data, the plus is obviously detected/enabled +// bMotionPlusDetected = bMotionPlusEnabled = true; + } + break; + } + + return changed; + } +// ------------------------------------------------------------------------------------ +int wiimote::ParseReadAddress (BYTE* buff) + { + // decode the address that was queried: + int address = buff[4]<<8 | buff[5]; + int size = buff[3] >> 4; + int changed = 0; + + if((buff[3] & 0x08) != 0) { + WARN(_T("error: read address not valid.")); + _ASSERT(0); + return NO_CHANGE; + } + // address read failed (write-only)? + else if((buff[3] & 0x07) != 0) + { + // this also happens when attempting to detect a non-existant MotionPlus + if(MotionPlusDetectCount) + { + --MotionPlusDetectCount; + if(Internal.ExtensionType == MOTION_PLUS) + { + if(bMotionPlusDetected) + TRACE(_T(".. MotionPlus removed.")); + bMotionPlusDetected = false; + bMotionPlusEnabled = false; + // the MotionPlus can sometimes get confused - initializing + // extenions fixes it: +// if(address == 0xfa) +// InitializeExtension(); + } + } + else + WARN(_T("error: attempt to read from write-only register 0x%X."), buff[3]); + + return NO_CHANGE; + } + + // *NOTE*: this is a major (but convenient) hack! The returned data only + // contains the lower two bytes of the address that was queried. + // as these don't collide between any of the addresses/registers + // we currently read, it's OK to match just those two bytes + + // skip the header + buff += 6; + + switch(address) + { + case (REGISTER_CALIBRATION & 0xffff): + { + _ASSERT(size == 6); + TRACE(_T(".. got wiimote calibration.")); + Internal.CalibrationInfo.X0 = buff[0]; + Internal.CalibrationInfo.Y0 = buff[1]; + Internal.CalibrationInfo.Z0 = buff[2]; + Internal.CalibrationInfo.XG = buff[4]; + Internal.CalibrationInfo.YG = buff[5]; + Internal.CalibrationInfo.ZG = buff[6]; + //changed |= CALIBRATION_CHANGED; + } + break; + + // note: this covers both the normal extension and motion plus extension + // addresses (0x4a400fa / 0x4a600fa) + case (REGISTER_EXTENSION_TYPE & 0xffff): + { + _ASSERT(size == 5); + QWORD type = *(QWORD*)buff; + +// TRACE(_T("(found extension 0x%I64x)"), type); + + static const QWORD NUNCHUK = 0x000020A40000ULL; + static const QWORD CLASSIC = 0x010120A40000ULL; + static const QWORD GH3_GHWT_GUITAR = 0x030120A40000ULL; + static const QWORD GHWT_DRUMS = 0x030120A40001ULL; + static const QWORD BALANCE_BOARD = 0x020420A40000ULL; + static const QWORD MOTION_PLUS = 0x050420A40000ULL; + static const QWORD MOTION_PLUS_DETECT = 0x050020a60000ULL; + static const QWORD MOTION_PLUS_DETECT2 = 0x050420a60000ULL; + static const QWORD PARTIALLY_INSERTED = 0xffffffffffffULL; + + // MotionPlus: _before_ it's been activated + if((type == MOTION_PLUS_DETECT) || (type == MOTION_PLUS_DETECT2)) + { + if(!bMotionPlusDetected) { + TRACE(_T("Motion Plus detected!")); + changed |= MOTIONPLUS_DETECTED; + } + bMotionPlusDetected = true; + --MotionPlusDetectCount; + break; + } + + #define IF_TYPE(id) if(type == id) { \ + /* sometimes it comes in more than once */ \ + if(Internal.ExtensionType == wiimote_state::id)\ + break; \ + Internal.ExtensionType = wiimote_state::id; + + // MotionPlus: once it's activated & mapped to the standard ext. port + IF_TYPE(MOTION_PLUS) + TRACE(_T(".. Motion Plus!")); + // and start a query for the calibration data + ReadAddress(REGISTER_EXTENSION_CALIBRATION, 16); + bMotionPlusDetected = true; + } + else IF_TYPE(NUNCHUK) + TRACE(_T(".. Nunchuk!")); + bMotionPlusEnabled = false; + // and start a query for the calibration data + ReadAddress(REGISTER_EXTENSION_CALIBRATION, 16); + } + else IF_TYPE(CLASSIC) + TRACE(_T(".. Classic Controller!")); + bMotionPlusEnabled = false; + // and start a query for the calibration data + ReadAddress(REGISTER_EXTENSION_CALIBRATION, 16); + } + else IF_TYPE(GH3_GHWT_GUITAR) + // sometimes it comes in more than once? + TRACE(_T(".. GH3/GHWT Guitar Controller!")); + bMotionPlusEnabled = false; + // and start a query for the calibration data + ReadAddress(REGISTER_EXTENSION_CALIBRATION, 16); + } + else IF_TYPE(GHWT_DRUMS) + TRACE(_T(".. GHWT Drums!")); + bMotionPlusEnabled = false; + // and start a query for the calibration data + ReadAddress(REGISTER_EXTENSION_CALIBRATION, 16); + } + else IF_TYPE(BALANCE_BOARD) + TRACE(_T(".. Balance Board!")); + bMotionPlusEnabled = false; + // and start a query for the calibration data + ReadAddress(REGISTER_BALANCE_CALIBRATION, 24); + } + else if(type == PARTIALLY_INSERTED) { + // sometimes it comes in more than once? + if(Internal.ExtensionType == wiimote_state::PARTIALLY_INSERTED) + Sleep(50); + TRACE(_T(".. partially inserted!")); + bMotionPlusEnabled = false; + Internal.ExtensionType = wiimote_state::PARTIALLY_INSERTED; + changed |= EXTENSION_PARTIALLY_INSERTED; + // try initializing the extension again by requesting another + // status report (this usually fixes it) + Internal.bExtension = false; + RequestStatusReport(); + } + else{ + TRACE(_T("unknown extension controller found (0x%I64x)"), type); + } + } + break; + + case (REGISTER_EXTENSION_CALIBRATION & 0xffff): + case (REGISTER_BALANCE_CALIBRATION & 0xffff): + { +// _ASSERT(((Internal.ExtensionType == BALANCE_BOARD) && (size == 31)) || +// ((Internal.ExtensionType != BALANCE_BOARD) && (size == 15))); + + switch(Internal.ExtensionType) + { + case wiimote_state::NUNCHUK: + { + wiimote_state::nunchuk::calibration_info + &calib = Internal.Nunchuk.CalibrationInfo; + + calib.X0 = buff[ 0]; + calib.Y0 = buff[ 1]; + calib.Z0 = buff[ 2]; + calib.XG = buff[ 4]; + calib.YG = buff[ 5]; + calib.ZG = buff[ 6]; + calib.MaxX = buff[ 8]; + calib.MinX = buff[ 9]; + calib.MidX = buff[10]; + calib.MaxY = buff[11]; + calib.MinY = buff[12]; + calib.MidY = buff[13]; + + changed |= NUNCHUK_CONNECTED;//|NUNCHUK_CALIBRATION_CHANGED; + // reenable reports +// SetReportType(ReportType); + } + break; + + case wiimote_state::CLASSIC: + case wiimote_state::GH3_GHWT_GUITAR: + case wiimote_state::GHWT_DRUMS: + { + wiimote_state::classic_controller::calibration_info + &calib = Internal.ClassicController.CalibrationInfo; + + calib.MaxXL = buff[ 0] >> 2; + calib.MinXL = buff[ 1] >> 2; + calib.MidXL = buff[ 2] >> 2; + calib.MaxYL = buff[ 3] >> 2; + calib.MinYL = buff[ 4] >> 2; + calib.MidYL = buff[ 5] >> 2; + calib.MaxXR = buff[ 6] >> 3; + calib.MinXR = buff[ 7] >> 3; + calib.MidXR = buff[ 8] >> 3; + calib.MaxYR = buff[ 9] >> 3; + calib.MinYR = buff[10] >> 3; + calib.MidYR = buff[11] >> 3; + // this doesn't seem right... + // calib.MinTriggerL = buff[12] >> 3; + // calib.MaxTriggerL = buff[14] >> 3; + // calib.MinTriggerR = buff[13] >> 3; + // calib.MaxTriggerR = buff[15] >> 3; + calib.MinTriggerL = 0; + calib.MaxTriggerL = 31; + calib.MinTriggerR = 0; + calib.MaxTriggerR = 31; + + changed |= CLASSIC_CONNECTED;//|CLASSIC_CALIBRATION_CHANGED; + // reenable reports +// SetReportType(ReportType); + } + break; + + case BALANCE_BOARD: + { + // first part, 0 & 17kg calibration values + wiimote_state::balance_board::calibration_info + &calib = Internal.BalanceBoard.CalibrationInfo; + + calib.Kg0 .TopR = (short)((short)buff[0] << 8 | buff[1]); + calib.Kg0 .BottomR = (short)((short)buff[2] << 8 | buff[3]); + calib.Kg0 .TopL = (short)((short)buff[4] << 8 | buff[5]); + calib.Kg0 .BottomL = (short)((short)buff[6] << 8 | buff[7]); + + calib.Kg17.TopR = (short)((short)buff[8] << 8 | buff[9]); + calib.Kg17.BottomR = (short)((short)buff[10] << 8 | buff[11]); + calib.Kg17.TopL = (short)((short)buff[12] << 8 | buff[13]); + calib.Kg17.BottomL = (short)((short)buff[14] << 8 | buff[15]); + + // 2nd part is scanned above + } + break; + + case MOTION_PLUS: + { + // TODO: not known how the calibration values work + changed |= MOTIONPLUS_ENABLED; + bMotionPlusEnabled = true; + bInitInProgress = false; + // reenable reports +// SetReportType(ReportType); + } + break; + } + case 0x34: + { + if(Internal.ExtensionType == BALANCE_BOARD) + { + wiimote_state::balance_board::calibration_info + &calib = Internal.BalanceBoard.CalibrationInfo; + + // 2nd part of the balance board calibration, + // 34kg calibration values + calib.Kg34.TopR = (short)((short)buff[0] << 8 | buff[1]); + calib.Kg34.BottomR = (short)((short)buff[2] << 8 | buff[3]); + calib.Kg34.TopL = (short)((short)buff[4] << 8 | buff[5]); + calib.Kg34.BottomL = (short)((short)buff[6] << 8 | buff[7]); + + changed |= BALANCE_CONNECTED; + // reenable reports + SetReportType(IN_BUTTONS_BALANCE_BOARD); + } + // else unknown what these are for + } + bInitInProgress = false; + } + break; + + default: +// _ASSERT(0); // shouldn't happen + break; + } + + return changed; + } +// ------------------------------------------------------------------------------------ +void wiimote::ReadCalibration () + { + TRACE(_T("Requestion wiimote calibration:")); + // this appears to change the report type to 0x31 + ReadAddress(REGISTER_CALIBRATION, 7); + } +// ------------------------------------------------------------------------------------ +void wiimote::EnableIR (wiimote_state::ir::mode mode) + { + Internal.IR.Mode = mode; + + BYTE buff [REPORT_LENGTH] = {0}; + buff[0] = OUT_IR; + buff[1] = 0x04 | GetRumbleBit(); + WriteReport(buff); + + memset(buff, 0, REPORT_LENGTH); + buff[0] = OUT_IR2; + buff[1] = 0x04 | GetRumbleBit(); + WriteReport(buff); + + static const BYTE ir_sens1[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0x00, + 0xc0}; + static const BYTE ir_sens2[] = {0x40, 0x00}; + + WriteData(REGISTER_IR, 0x08); + Sleep(25); // wait a little to make IR more reliable (for some) + WriteData(REGISTER_IR_SENSITIVITY_1, sizeof(ir_sens1), ir_sens1); + WriteData(REGISTER_IR_SENSITIVITY_2, sizeof(ir_sens2), ir_sens2); + WriteData(REGISTER_IR_MODE, (BYTE)mode); + } +// ------------------------------------------------------------------------------------ +void wiimote::DisableIR () + { + Internal.IR.Mode = wiimote_state::ir::OFF; + + BYTE buff [REPORT_LENGTH] = {0}; + buff[0] = OUT_IR; + buff[1] = GetRumbleBit(); + WriteReport(buff); + + memset(buff, 0, REPORT_LENGTH); + buff[0] = OUT_IR2; + buff[1] = GetRumbleBit(); + WriteReport(buff); + } +// ------------------------------------------------------------------------------------ +unsigned __stdcall wiimote::HIDwriteThreadfunc (void* param) + { + _ASSERT(param); + TRACE(_T("(starting HID write thread)")); + wiimote &remote = *(wiimote*)param; + + while(remote.Handle != INVALID_HANDLE_VALUE) + { + // try to write the oldest entry in the queue +#ifdef USE_DYNAMIC_HIDQUEUE + if(!remote.HIDwriteQueue.empty()) +#else + if(!remote.HID.IsEmpty()) +#endif + { +#ifdef BEEP_DEBUG_WRITES + Beep(1500,1); +#endif + EnterCriticalSection(&remote.HIDwriteQueueLock); +#ifdef USE_DYNAMIC_HIDQUEUE + BYTE *buff = remote.HIDwriteQueue.front(); + _ASSERT(buff); +#else + BYTE *buff = remote.HID.Queue[remote.HID.ReadIndex].Report; +#endif + LeaveCriticalSection(&remote.HIDwriteQueueLock); + + if(!_HidD_SetOutputReport(remote.Handle, buff, REPORT_LENGTH)) + { + DWORD err = GetLastError(); +if(err==ERROR_BUSY) +TRACE(_T("**** HID WRITE: BUSY ****")); +else if(err == ERROR_NOT_READY) +TRACE(_T("**** HID WRITE: NOT READY ****")); + + if((err != ERROR_BUSY) && // "the requested resource is in use" + (err != ERROR_NOT_READY)) // "the device is not ready" + { + if(err == ERROR_NOT_SUPPORTED) { + WARN(_T("BT Stack doesn't suport HID writes!")); + goto remove_entry; + } + else{ + DEEP_TRACE(_T("HID write failed (err %u)! - "), err); + // if this worked previously, the connection was probably lost + if(remote.IsConnected()) + remote.bConnectionLost = true; + } + //_T("aborting write thread"), err); + //return 911; + } + } + else{ +remove_entry: + EnterCriticalSection(&remote.HIDwriteQueueLock); +#ifdef USE_DYNAMIC_HIDQUEUE + remote.HIDwriteQueue.pop(); + delete[] buff; +#else + remote.HID.ReadIndex++; + remote.HID.ReadIndex &= (hid::MAX_QUEUE_ENTRIES-1); +#endif + LeaveCriticalSection(&remote.HIDwriteQueueLock); + } + } + Sleep(1); + } + + TRACE(_T("ending HID write thread")); + return 0; + } +// ------------------------------------------------------------------------------------ +bool wiimote::WriteReport (BYTE *buff) + { +#ifdef BEEP_DEBUG_WRITES + Beep(2000,1); +#endif + +#ifdef _DEBUG + #define DEEP_TRACE_TYPE(type) case OUT_##type: DEEP_TRACE(_T("WriteReport: ")\ + _T(#type)); break + switch(buff[0]) + { + DEEP_TRACE_TYPE(NONE); + DEEP_TRACE_TYPE(LEDs); + DEEP_TRACE_TYPE(TYPE); + DEEP_TRACE_TYPE(IR); + DEEP_TRACE_TYPE(SPEAKER_ENABLE); + DEEP_TRACE_TYPE(STATUS); + DEEP_TRACE_TYPE(WRITEMEMORY); + DEEP_TRACE_TYPE(READMEMORY); + DEEP_TRACE_TYPE(SPEAKER_DATA); + DEEP_TRACE_TYPE(SPEAKER_MUTE); + DEEP_TRACE_TYPE(IR2); + default: + TRACE(_T("WriteReport: type [%02x][%02x]"), buff[1], buff[2]); + } +#endif + + if(bUseHIDwrite) + { + // HidD_SetOutputReport: +: works on MS Bluetooth stacks (WriteFile doesn't). + // -: is synchronous, so make it async + if(!HIDwriteThread) + { + HIDwriteThread = (HANDLE)_beginthreadex(NULL, 0, HIDwriteThreadfunc, + this, 0, NULL); + _ASSERT(HIDwriteThread); + if(!HIDwriteThread) { + WARN(_T("couldn't create HID write thread!")); + return false; + } + SetThreadPriority(HIDwriteThread, WORKER_THREAD_PRIORITY); + } + + // insert the write request into the thread's queue +#ifdef USE_DYNAMIC_HIDQUEUE + EnterCriticalSection(&HIDwriteQueueLock); + BYTE *buff_copy = new BYTE[REPORT_LENGTH]; +#else + // allocate the HID write queue once + if(!HID.Queue && !HID.Allocate()) + return false; + + EnterCriticalSection(&HIDwriteQueueLock); + BYTE *buff_copy = HID.Queue[HID.WriteIndex].Report; +#endif + memcpy(buff_copy, buff, REPORT_LENGTH); + +#ifdef USE_DYNAMIC_HIDQUEUE + HIDwriteQueue.push(buff_copy); +#else + HID.WriteIndex++; + HID.WriteIndex &= (HID.MAX_QUEUE_ENTRIES-1); + + // check if the fixed report queue has overflown: + // if this ASSERT triggers, the HID write queue (that stores reports + // for asynchronous output by HIDwriteThreadfunc) has overflown. + // this can happen if the connection with the wiimote has been lost + // and in that case is harmless. + // + // if it happens during normal operation though you need to increase + // hid::MAX_QUEUE_ENTRIES to the next power-of-2 (see comments) + // _and_ email me the working setting so I can update the next release + _ASSERT(HID.WriteIndex != HID.ReadIndex); +#endif + LeaveCriticalSection(&HIDwriteQueueLock); + return true; + } + + // WriteFile: + DWORD written; + if(!WriteFile(Handle, buff, REPORT_LENGTH, &written, &Overlapped)) + { + DWORD error = GetLastError(); + if(error != ERROR_IO_PENDING) { + TRACE(_T("WriteFile failed, err: %u!"), error); + // if it worked previously, assume we lost the connection + if(IsConnected()) + bConnectionLost = true; +#ifndef USE_DYNAMIC_HIDQUEUE + HID.Deallocate(); +#endif + return false; + } + } + return true; + } +// ------------------------------------------------------------------------------------ +// experimental speaker support: +// ------------------------------------------------------------------------------------ +bool wiimote::MuteSpeaker (bool on) + { + _ASSERT(IsConnected()); + if(!IsConnected()) + return false; + + if(Internal.Speaker.bMuted == on) + return true; + + if(on) TRACE(_T("muting speaker." )); + else TRACE(_T("unmuting speaker.")); + + BYTE buff [REPORT_LENGTH] = {0}; + buff[0] = OUT_SPEAKER_MUTE; + buff[1] = (on? 0x04 : 0x00) | GetRumbleBit(); + if(!WriteReport(buff)) + return false; + Sleep(1); + Internal.Speaker.bMuted = on; + return true; + } +// ------------------------------------------------------------------------------------ +bool wiimote::EnableSpeaker (bool on) + { + _ASSERT(IsConnected()); + if(!IsConnected()) + return false; + + if(Internal.Speaker.bEnabled == on) + return true; + + if(on) TRACE(_T("enabling speaker.")); else TRACE(_T("disabling speaker.")); + + BYTE buff [REPORT_LENGTH] = {0}; + buff[0] = OUT_SPEAKER_ENABLE; + buff[1] = (on? 0x04 : 0x00) | GetRumbleBit(); + if(!WriteReport(buff)) + return false; + + if(!on) { + Internal.Speaker.Freq = FREQ_NONE; + Internal.Speaker.Volume = 0; + MuteSpeaker(true); + } + + Internal.Speaker.bEnabled = on; + return true; + } +// ------------------------------------------------------------------------------------ +#ifdef TR4 // TEMP, ignore + extern int hzinc; +#endif +// ------------------------------------------------------------------------------------ +unsigned __stdcall wiimote::SampleStreamThreadfunc (void* param) + { + TRACE(_T("(starting sample thread)")); + // sends a simple square wave sample stream + wiimote &remote = *(wiimote*)param; + + static BYTE squarewave_report[REPORT_LENGTH] = + { OUT_SPEAKER_DATA, 20<<3, 0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3, + 0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3,0xC3, }; + static BYTE sample_report [REPORT_LENGTH] = + { OUT_SPEAKER_DATA, 0 }; + + bool last_playing = false; + DWORD frame = 0; + DWORD frame_start = 0; + unsigned total_samples = 0; + unsigned sample_index = 0; + wiimote_sample *current_sample = NULL; + + // TODO: duration!! + while(remote.IsConnected()) + { + bool playing = remote.IsPlayingAudio(); + + if(!playing) + Sleep(1); + else{ + const unsigned freq_hz = FreqLookup[remote.Internal.Speaker.Freq]; +#ifdef TR4 + const float frame_ms = 1000 / ((freq_hz+hzinc) / 40.f); // 20bytes = 40 samples per write +#else + const float frame_ms = 1000 / (freq_hz / 40.f); // 20bytes = 40 samples per write +#endif + + // has the sample just changed? + bool sample_changed = (current_sample != remote.CurrentSample); + current_sample = (wiimote_sample*)remote.CurrentSample; + +// (attempts to minimise glitches, doesn't seem to help though) +//#define FIRSTFRAME_IS_SILENT // send all-zero for first frame + +#ifdef FIRSTFRAME_IS_SILENT + bool silent_frame = false; +#endif + if(!last_playing || sample_changed) { + frame = 0; + frame_start = timeGetTime(); + total_samples = current_sample? current_sample->length : 0; + sample_index = 0; +#ifdef FIRSTFRAME_IS_SILENT + silent_frame = true; +#endif + } + + // are we streaming a sample? + if(current_sample) + { + if(sample_index < current_sample->length) + { + // (remember that samples are 4bit, ie. 2 per byte) + unsigned samples_left = (current_sample->length - sample_index); + unsigned report_samples = min(samples_left, (unsigned)40); + // round the entries up to the nearest multiple of 2 + unsigned report_entries = (report_samples+1) >> 1; + + sample_report[1] = (BYTE)((report_entries<<3) | + remote.GetRumbleBit()); +#ifdef FIRSTFRAME_IS_SILENT + if(silent_frame) { + // send all-zeroes + for(unsigned index=0; index<report_entries; index++) + sample_report[2+index] = 0; + remote.WriteReport(sample_report); + } + else +#endif + { + for(unsigned index=0; index<report_entries; index++) + sample_report[2+index] = + current_sample->samples[(sample_index>>1)+index]; + remote.WriteReport(sample_report); + sample_index += report_samples; + } + } + else{ + // we reached the sample end + remote.CurrentSample = NULL; + current_sample = NULL; + remote.Internal.Speaker.Freq = FREQ_NONE; + remote.Internal.Speaker.Volume = 0; + } + } + // no, a squarewave + else{ + squarewave_report[1] = (20<<3) | remote.GetRumbleBit(); + remote.WriteReport(squarewave_report); +#if 0 + // verify that we're sending at the correct rate (we are) + DWORD elapsed = (timeGetTime()-frame_start); + unsigned total_samples = frame * 40; + float elapsed_secs = elapsed / 1000.f; + float sent_persec = total_samples / elapsed_secs; +#endif + } + + frame++; + + // send the first two buffers immediately? (attempts to lessen startup + // startup glitches by assuming we're filling a small sample + // (or general input) buffer on the wiimote) - doesn't seem to help +// if(frame > 2) { + while((timeGetTime()-frame_start) < (unsigned)(frame*frame_ms)) + Sleep(1); +// } + } + + last_playing = playing; + } + + TRACE(_T("(ending sample thread)")); + return 0; + } +// ------------------------------------------------------------------------------------ +bool wiimote::Load16bitMonoSampleWAV (const TCHAR* filepath, wiimote_sample &out) + { + // converts unsigned 16bit mono .wav audio data to the 4bit ADPCM variant + // used by the Wiimote (at least the closest match so far), and returns + // the data in a BYTE array (caller must delete[] it when no longer needed): + memset(&out, 0, sizeof(out)); + + TRACE(_T("Loading '%s'"), filepath); + + FILE *file; +#if (_MSC_VER >= 1400) // VC 2005+ + _tfopen_s(&file, filepath, _T("rb")); +#else + file = _tfopen(filepath, _T("rb")); +#endif + _ASSERT(file); + if(!file) { + WARN(_T("Couldn't open '%s"), filepath); + return false; + } + + // parse the .wav file + struct riff_chunkheader { + char ckID [4]; + DWORD ckSize; + char formType [4]; + }; + struct chunk_header { + char ckID [4]; + DWORD ckSize; + }; + union { + WAVEFORMATEX x; + WAVEFORMATEXTENSIBLE xe; + } wf = {0}; + + riff_chunkheader riff_chunkheader; + chunk_header chunk_header; + speaker_freq freq = FREQ_NONE; + + #define READ(data) if(fread(&data, sizeof(data), 1, file) != 1) { \ + TRACE(_T(".wav file corrupt")); \ + fclose(file); \ + return false; \ + } + #define READ_SIZE(ptr,size) if(fread(ptr, size, 1, file) != 1) { \ + TRACE(_T(".wav file corrupt")); \ + fclose(file); \ + return false; \ + } + // read the riff chunk header + READ(riff_chunkheader); + + // valid RIFF file? + _ASSERT(!strncmp(riff_chunkheader.ckID, "RIFF", 4)); + if(strncmp(riff_chunkheader.ckID, "RIFF", 4)) + goto unsupported; // nope + // valid WAV variant? + _ASSERT(!strncmp(riff_chunkheader.formType, "WAVE", 4)); + if(strncmp(riff_chunkheader.formType, "WAVE", 4)) + goto unsupported; // nope + + // find the format & data chunks + while(1) + { + READ(chunk_header); + + if(!strncmp(chunk_header.ckID, "fmt ", 4)) + { + // not a valid .wav file? + if(chunk_header.ckSize < 16 || + chunk_header.ckSize > sizeof(WAVEFORMATEXTENSIBLE)) + goto unsupported; + + READ_SIZE((BYTE*)&wf.x, chunk_header.ckSize); + + // now we know it's true wav file + bool extensible = (wf.x.wFormatTag == WAVE_FORMAT_EXTENSIBLE); + int format = extensible? wf.xe.SubFormat.Data1 : + wf.x .wFormatTag; + // must be uncompressed PCM (the format comparisons also work on + // the 'extensible' header, even though they're named differently) + if(format != WAVE_FORMAT_PCM) { + TRACE(_T(".. not uncompressed PCM")); + goto unsupported; + } + + // must be mono, 16bit + if((wf.x.nChannels != 1) || (wf.x.wBitsPerSample != 16)) { + TRACE(_T(".. %d bit, %d channel%s"), wf.x.wBitsPerSample, + wf.x.nChannels, + (wf.x.nChannels>1? _T("s"):_T(""))); + goto unsupported; + } + + // must be _near_ a supported speaker frequency range (but allow some + // tolerance, especially as the speaker freq values aren't final yet): + unsigned sample_freq = wf.x.nSamplesPerSec; + const unsigned epsilon = 100; // for now + + for(unsigned index=1; index<ARRAY_ENTRIES(FreqLookup); index++) + { + if((sample_freq+epsilon) >= FreqLookup[index] && + (sample_freq-epsilon) <= FreqLookup[index]) { + freq = (speaker_freq)index; + TRACE(_T(".. using speaker freq %u"), FreqLookup[index]); + break; + } + } + if(freq == FREQ_NONE) { + WARN(_T("Couldn't (loosely) match .wav samplerate %u Hz to speaker"), + sample_freq); + goto unsupported; + } + } + else if(!strncmp(chunk_header.ckID, "data", 4)) + { + // make sure we got a valid fmt chunk first + if(!wf.x.nBlockAlign) + goto corrupt_file; + + // grab the data + unsigned total_samples = chunk_header.ckSize / wf.x.nBlockAlign; + if(total_samples == 0) + goto corrupt_file; + + short *samples = new short[total_samples]; + size_t read = fread(samples, 2, total_samples, file); + fclose(file); + if(read != total_samples) + { + if(read == 0) { + delete[] samples; + goto corrupt_file; + } + // got a different number, but use them anyway + WARN(_T("found %s .wav audio data than expected (%u/%u samples)"), + ((read < total_samples)? _T("less") : _T("more")), + read, total_samples); + + total_samples = read; + } + + // and convert them + bool res = Convert16bitMonoSamples(samples, true, total_samples, freq, + out); + delete[] samples; + return res; + } + else{ + // unknown chunk, skip its data + DWORD chunk_bytes = (chunk_header.ckSize + 1) & ~1L; + if(fseek(file, chunk_bytes, SEEK_CUR)) + goto corrupt_file; + } + } + +corrupt_file: + WARN(_T(".wav file is corrupt")); + fclose(file); + return false; + +unsupported: + WARN(_T(".wav file format not supported (must be mono 16bit PCM)")); + fclose(file); + return false; + } +// ------------------------------------------------------------------------------------ +bool wiimote::Load16BitMonoSampleRAW (const TCHAR* filepath, + bool _signed, + speaker_freq freq, + wiimote_sample &out) + { + // converts (.wav style) unsigned 16bit mono raw data to the 4bit ADPCM variant + // used by the Wiimote, and returns the data in a BYTE array (caller must + // delete[] it when no longer needed): + memset(&out, 0, sizeof(out)); + + // get the length of the file + struct _stat file_info; + if(_tstat(filepath, &file_info)) { + WARN(_T("couldn't get filesize for '%s'"), filepath); + return false; + } + + DWORD len = file_info.st_size; + _ASSERT(len); + if(!len) { + WARN(_T("zero-size sample file '%s'"), filepath); + return false; + } + + unsigned total_samples = (len+1) / 2; // round up just in case file is corrupt + // allocate a buffer to hold the samples to convert + short *samples = new short[total_samples]; + _ASSERT(samples); + if(!samples) { + TRACE(_T("Couldn't open '%s"), filepath); + return false; + } + + // load them + FILE *file; + bool res; +#if (_MSC_VER >= 1400) // VC 2005+ + _tfopen_s(&file, filepath, _T("rb")); +#else + file = _tfopen(filepath, _T("rb")); +#endif + _ASSERT(file); + if(!file) { + TRACE(_T("Couldn't open '%s"), filepath); + goto error; + } + + res = (fread(samples, 1, len, file) == len); + fclose(file); + if(!res) { + WARN(_T("Couldn't load file '%s'"), filepath); + goto error; + } + + // and convert them + res = Convert16bitMonoSamples(samples, _signed, total_samples, freq, out); + delete[] samples; + return res; + +error: + delete[] samples; + return false; + } +// ------------------------------------------------------------------------------------ +bool wiimote::Convert16bitMonoSamples (const short* samples, + bool _signed, + DWORD length, + speaker_freq freq, + wiimote_sample &out) + { + // converts 16bit mono sample data to the native 4bit format used by the Wiimote, + // and returns the data in a BYTE array (caller must delete[] when no + // longer needed): + memset(&out, 0, sizeof(0)); + + _ASSERT(samples && length); + if(!samples || !length) + return false; + + // allocate the output buffer + out.samples = new BYTE[length]; + _ASSERT(out.samples); + if(!out.samples) + return false; + + // clear it + memset(out.samples, 0, length); + out.length = length; + out.freq = freq; + + // ADPCM code, adapted from + // http://www.wiindows.org/index.php/Talk:Wiimote#Input.2FOutput_Reports + static const int index_table[16] = { -1, -1, -1, -1, 2, 4, 6, 8, + -1, -1, -1, -1, 2, 4, 6, 8 }; + static const int diff_table [16] = { 1, 3, 5, 7, 9, 11, 13, 15, + -1, -3, -5, -7, -9, -11, -13, 15 }; + static const int step_scale [16] = { 230, 230, 230, 230, 307, 409, 512, 614, + 230, 230, 230, 230, 307, 409, 512, 614 }; + // Encode to ADPCM, on initialization set adpcm_prev_value to 0 and adpcm_step + // to 127 (these variables must be preserved across reports) + int adpcm_prev_value = 0; + int adpcm_step = 127; + + for(size_t i=0; i<length; i++) + { + // convert to 16bit signed + int value = samples[i];// (8bit) << 8);// | samples[i]; // dither it? + if(!_signed) + value -= 32768; + // encode: + int diff = value - adpcm_prev_value; + BYTE encoded_val = 0; + if(diff < 0) { + encoded_val |= 8; + diff = -diff; + } + diff = (diff << 2) / adpcm_step; + if (diff > 7) + diff = 7; + encoded_val |= diff; + adpcm_prev_value += ((adpcm_step * diff_table[encoded_val]) / 8); + if(adpcm_prev_value > 0x7fff) + adpcm_prev_value = 0x7fff; + if(adpcm_prev_value < -0x8000) + adpcm_prev_value = -0x8000; + adpcm_step = (adpcm_step * step_scale[encoded_val]) >> 8; + if(adpcm_step < 127) + adpcm_step = 127; + if(adpcm_step > 24567) + adpcm_step = 24567; + if(i & 1) + out.samples[i>>1] |= encoded_val; + else + out.samples[i>>1] |= encoded_val << 4; + } + + return true; + } +// ------------------------------------------------------------------------------------ +bool wiimote::PlaySample (const wiimote_sample &sample, BYTE volume, + speaker_freq freq_override) + { + _ASSERT(IsConnected()); + if(!IsConnected()) + return false; + + speaker_freq freq = freq_override? freq_override : sample.freq; + + TRACE(_T("playing sample.")); + EnableSpeaker(true); + MuteSpeaker (true); + +#if 0 + // combine everything into one write - faster, seems to work? + BYTE bytes[9] = { 0x00, 0x00, 0x00, 10+freq, vol, 0x00, 0x00, 0x01, 0x01 }; + WriteData(0x04a20001, sizeof(bytes), bytes); +#else + // Write 0x01 to register 0x04a20009 + WriteData(0x04a20009, 0x01); + // Write 0x08 to register 0x04a20001 + WriteData(0x04a20001, 0x08); + // Write 7-byte configuration to registers 0x04a20001-0x04a20008 + BYTE bytes[7] = { 0x00, 0x00, 0x00, 10+(BYTE)freq, volume, 0x00, 0x00 }; + WriteData(0x04a20001, sizeof(bytes), bytes); + // + Write 0x01 to register 0x04a20008 + WriteData(0x04a20008, 0x01); +#endif + + Internal.Speaker.Freq = freq; + Internal.Speaker.Volume = volume; + CurrentSample = &sample; + + MuteSpeaker(false); + + return StartSampleThread(); + } +// ------------------------------------------------------------------------------------ +bool wiimote::StartSampleThread () + { + if(SampleThread) + return true; + + SampleThread = (HANDLE)_beginthreadex(NULL, 0, SampleStreamThreadfunc, + this, 0, NULL); + _ASSERT(SampleThread); + if(!SampleThread) { + WARN(_T("couldn't create sample thread!")); + MuteSpeaker (true); + EnableSpeaker(false); + return false; + } + SetThreadPriority(SampleThread, WORKER_THREAD_PRIORITY); + return true; + } +// ------------------------------------------------------------------------------------ +bool wiimote::PlaySquareWave (speaker_freq freq, BYTE volume) + { + _ASSERT(IsConnected()); + if(!IsConnected()) + return false; + + // if we're already playing a sample, stop it first + if(IsPlayingSample()) + CurrentSample = NULL; + // if we're already playing a square wave at this freq and volume, return + else if(IsPlayingAudio() && (Internal.Speaker.Freq == freq) && + (Internal.Speaker.Volume == volume)) + return true; + + TRACE(_T("playing square wave.")); + // stop playing samples + CurrentSample = 0; + + EnableSpeaker(true); + MuteSpeaker (true); + +#if 0 + // combined everything into one write - much faster, seems to work? + BYTE bytes[9] = { 0x00, 0x00, 0x00, freq, volume, 0x00, 0x00, 0x01, 0x1 }; + WriteData(0x04a20001, sizeof(bytes), bytes); +#else + // write 0x01 to register 0xa20009 + WriteData(0x04a20009, 0x01); + // write 0x08 to register 0xa20001 + WriteData(0x04a20001, 0x08); + // write default sound mode (4bit ADPCM, we assume) 7-byte configuration + // to registers 0xa20001-0xa20008 + BYTE bytes[7] = { 0x00, 0x00, 0x00, 10+(BYTE)freq, volume, 0x00, 0x00 }; + WriteData(0x04a20001, sizeof(bytes), bytes); + // write 0x01 to register 0xa20008 + WriteData(0x04a20008, 0x01); +#endif + + Internal.Speaker.Freq = freq; + Internal.Speaker.Volume = volume; + + MuteSpeaker(false); + return StartSampleThread(); + } +// ------------------------------------------------------------------------------------ +void wiimote::RecordState (state_history &events_out, + unsigned max_time_ms, + state_change_flags change_trigger) + { + // user being naughty? + if(Recording.bEnabled) + StopRecording(); + + // clear the list + if(!events_out.empty()) + events_out.clear(); + + // start recording + Recording.StateHistory = &events_out; + Recording.StartTimeMS = timeGetTime(); + Recording.EndTimeMS = Recording.StartTimeMS + max_time_ms; + Recording.TriggerFlags = change_trigger; + // as this call happens outside the read/parse thread, set the boolean + // which will enable reocrding last, so that all params are in place. + // TODO: * stricly speaking this only works on VC2005+ or better, as it + // automatically places a memory barrier on volatile variables - earlier/ + // other compilers may reorder the assignments!). * + Recording.bEnabled = true; + } +// ------------------------------------------------------------------------------------ +void wiimote::StopRecording () + { + if(!Recording.bEnabled) + return; + + Recording.bEnabled = false; + // make sure the read/parse thread has time to notice the change (else it might + // still write one more state to the list) + Sleep(10); // too much? + } +// ------------------------------------------------------------------------------------ +// ------------------------------------------------------------------------------------ |