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wiimote.cpp
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// _______________________________________________________________________________
//
// - 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,
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);