FT: use the portable way to create a shared memory segment

1 files changed, 65 insertions, 155 deletions

diff --git a/ftnoir_protocol_ft/ftnoir_protocol_ft.cpp b/ftnoir_protocol_ft/ftnoir_protocol_ft.cpp
index fb31dad7..257ed723 100644
--- a/ftnoir_protocol_ft/ftnoir_protocol_ft.cpp
+++ b/ftnoir_protocol_ft/ftnoir_protocol_ft.cpp
@@ -43,24 +43,21 @@
 #include "ftnoir_csv/csv.h"

 

 /** constructor **/

-FTNoIR_Protocol::FTNoIR_Protocol()

+FTNoIR_Protocol::FTNoIR_Protocol() :

+    shm(FT_MM_DATA, FREETRACK_MUTEX, sizeof(FTMemMap))

 {

+    pMemData = (FTMemMap*) shm.mem;

 	useTIRViews	= false;

 	useDummyExe	= false;

-	intUsedInterface = 0;

-

-	//

-	// Load the INI-settings.

-	//

-	loadSettings();

+    intUsedInterface = 0;

+	

+    loadSettings();

 

 	ProgramName = "";

 	intGameID = 0;

 

 	viewsStart = 0;

 	viewsStop = 0;

-

-    pMemData = NULL;

     force_dummy = false;

     force_tirviews = false;

 

@@ -80,11 +77,6 @@ FTNoIR_Protocol::~FTNoIR_Protocol()
 		viewsStop();

 		FTIRViewsLib.unload();

 	}

-

-	//

-	// Destroy the File-mapping

-	//

-	FTDestroyMapping();

 }

 

 void FTNoIR_Protocol::Initialize()

@@ -156,80 +148,64 @@ float headRotZ;
     virtPosY = headpose[TY] * 10;

     virtPosZ = headpose[TZ] * 10;

 

-	//

-	// Check if the pointer is OK and wait for the Mutex.

-	//

-	if ( (pMemData != NULL) && (WaitForSingleObject(hFTMutex, 100) == WAIT_OBJECT_0) ) {

-

-		//

-		// Copy the Raw measurements directly to the client.

-		//

-		pMemData->data.RawX = headPosX;

-		pMemData->data.RawY = headPosY;

-		pMemData->data.RawZ = headPosZ;

-		pMemData->data.RawPitch = headRotX;

-		pMemData->data.RawYaw = headRotY;

-		pMemData->data.RawRoll = headRotZ;

-

-		//

-		//

-		pMemData->data.X = virtPosX;

-		pMemData->data.Y = virtPosY;

-		pMemData->data.Z = virtPosZ;

-		pMemData->data.Pitch = virtRotX;

-		pMemData->data.Yaw = virtRotY;

-		pMemData->data.Roll = virtRotZ;

-

-		//

-		// Leave some values 0 yet...

-		//

-		pMemData->data.X1 = pMemData->data.DataID + 10;

-		pMemData->data.X2 = 0;

-		pMemData->data.X3 = 0;

-		pMemData->data.X4 = 0;

-		pMemData->data.Y1 = 0;

-		pMemData->data.Y2 = 0;

-		pMemData->data.Y3 = 0;

-		pMemData->data.Y4 = 0;

-

-		//

-		// Check if the handle that was sent to the Game, was changed (on x64, this will be done by the ED-API)

-		// If the "Report Program Name" command arrives (which is a '1', for now), raise the event from here!

-		//

-		//

-		// The game-ID was changed?

-		//

-        if (intGameID != pMemData->GameID)

-        {

-            QString gameID = QString::number(pMemData->GameID);

-            bool tirviews = false, dummy = false;

-            QString gamename;

-            CSV::getGameData(gameID, tirviews, dummy, pMemData->table, gamename);

-            if (tirviews)

-                start_tirviews();

-            if (dummy)

-                start_dummy();

-            pMemData->GameID2 = pMemData->GameID;

-            intGameID = pMemData->GameID;

-            QMutexLocker foo(&this->game_name_mutex);

-            connected_game = gamename;

-        }

+    shm.lock();

+    

+    pMemData->data.RawX = headPosX;

+    pMemData->data.RawY = headPosY;

+    pMemData->data.RawZ = headPosZ;

+    pMemData->data.RawPitch = headRotX;

+    pMemData->data.RawYaw = headRotY;

+    pMemData->data.RawRoll = headRotZ;

 

-        ReleaseMutex(hFTMutex);

-	}

+    //

+    //

+    pMemData->data.X = virtPosX;

+    pMemData->data.Y = virtPosY;

+    pMemData->data.Z = virtPosZ;

+    pMemData->data.Pitch = virtRotX;

+    pMemData->data.Yaw = virtRotY;

+    pMemData->data.Roll = virtRotZ;

+

+    //

+    // Leave some values 0 yet...

+    //

+    pMemData->data.X1 = pMemData->data.DataID + 10;

+    pMemData->data.X2 = 0;

+    pMemData->data.X3 = 0;

+    pMemData->data.X4 = 0;

+    pMemData->data.Y1 = 0;

+    pMemData->data.Y2 = 0;

+    pMemData->data.Y3 = 0;

+    pMemData->data.Y4 = 0;

+

+    //

+    // Check if the handle that was sent to the Game, was changed (on x64, this will be done by the ED-API)

+    // If the "Report Program Name" command arrives (which is a '1', for now), raise the event from here!

+    //

+    //

+    // The game-ID was changed?

+    //

+    if (intGameID != pMemData->GameID)

+    {

+        QString gameID = QString::number(pMemData->GameID);

+        bool tirviews = false, dummy = false;

+        QString gamename;

+        CSV::getGameData(gameID, tirviews, dummy, pMemData->table, gamename);

+        if (tirviews)

+            start_tirviews();

+        if (dummy)

+            start_dummy();

+        pMemData->GameID2 = pMemData->GameID;

+        intGameID = pMemData->GameID;

+        QMutexLocker foo(&this->game_name_mutex);

+        connected_game = gamename;

+    }

 

 	pMemData->data.DataID += 1;

+    

+    shm.unlock();

 }

 

-//

-// Set the Path variables and load the memory-mapping.

-// Simplified function: No need to check if the DLL's actually exist. The are installed by the installer.

-// If they are absent, something went terribly wrong anyway...

-//

-// Returns 'true' if all seems OK.

-//

-//

-

 void FTNoIR_Protocol::start_tirviews() {

     QString aFileName = QCoreApplication::applicationDirPath() + "/TIRViews.dll";

     if ( QFile::exists( aFileName ) && !force_tirviews ) {

@@ -311,83 +287,17 @@ bool FTNoIR_Protocol::checkServerInstallationOK()
     if (useDummyExe) {

         start_dummy();

     }

-	return FTCreateMapping();

-}

-

-//

-// Create a memory-mapping to the FreeTrack data.

-// It contains the tracking data, a handle to the main-window and the program-name of the Game!

-//

-//

-bool FTNoIR_Protocol::FTCreateMapping()

-{

-bool bFirst = false;

-

-	qDebug() << "FTCreateMapping says: Starting Function";

-

-	//

-	// A FileMapping is used to create 'shared memory' between the FTServer and the FTClient.

-	//

-	// Try to create a FileMapping to the Shared Memory.

-	// If one already exists: close it.

-	//

-    hFTMemMap = CreateFileMappingA( INVALID_HANDLE_VALUE , 00 , PAGE_READWRITE , 0 ,

-//		                           sizeof( TFreeTrackData ) + sizeof( HANDLE ) + 100, 

-		                           sizeof( FTMemMap ), 

-								   (LPCSTR) FT_MM_DATA );

-

-	if ( hFTMemMap != 0 ) {

-		bFirst = true;

-		qDebug() << "FTCreateMapping says: FileMapping Created!" << hFTMemMap;

-	}

-

-	if ( ( hFTMemMap != 0 ) && ( (long) GetLastError == ERROR_ALREADY_EXISTS ) ) {

-		bFirst = false;

-		qDebug() << "FTCreateMapping says: FileMapping already exists!" << hFTMemMap;

-		CloseHandle( hFTMemMap );

-		hFTMemMap = 0;

-	}

-

-	//

-	// Create a new FileMapping, Read/Write access

-    //

-    hFTMemMap = OpenFileMappingA( FILE_MAP_WRITE, false , (LPCSTR) FT_MM_DATA );

-	if ( ( hFTMemMap != 0 ) ) {

-		qDebug() << "FTCreateMapping says: FileMapping Opened:" << hFTMemMap;

-        pMemData = (FTMemMap *) MapViewOfFile(hFTMemMap, FILE_MAP_WRITE, 0, 0,

-//					sizeof(TFreeTrackData) + sizeof(hFTMemMap) + 100);

-					sizeof(FTMemMap));

-	    hFTMutex = CreateMutexA(NULL, false, FREETRACK_MUTEX);

-	}

-

-

-    if (!hFTMemMap || !pMemData) {

-		QMessageBox::information(0, "FaceTrackNoIR error", QString("FTServer Error! \n"));

-		return false;

-	}

-

+    

+    if (shm.mem == (void*) 0 || shm.mem == (void*) -1)

+        return false;

+    

     pMemData->data.DataID = 1;

     pMemData->data.CamWidth = 100;

     pMemData->data.CamHeight = 250;

     pMemData->GameID2 = 0;

     memset(pMemData->table, 0, 8);

-

-    return true;

-}

-

-//

-// Destory the FileMapping to the shared memory

-//

-void FTNoIR_Protocol::FTDestroyMapping()

-{

-	if ( pMemData != NULL ) {

-		UnmapViewOfFile ( pMemData );

-	}

-	

-	CloseHandle( hFTMutex );

-	CloseHandle( hFTMemMap );

-	hFTMemMap = 0;

-

+    

+	return true;

 }

 

 ////////////////////////////////////////////////////////////////////////////////