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/********************************************************************************
* FaceTrackNoIR This program is a private project of the some enthusiastic *
* gamers from Holland, who don't like to pay much for *
* head-tracking. *
* *
* Copyright (C) 2010 Wim Vriend (Developing) *
* Ron Hendriks (Researching and Testing) *
* *
* Homepage *
* *
* This program is free software; you can redistribute it and/or modify it *
* under the terms of the GNU General Public License as published by the *
* Free Software Foundation; either version 3 of the License, or (at your *
* option) any later version. *
* *
* This program is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for *
* more details. *
* *
* You should have received a copy of the GNU General Public License along *
* with this program; if not, see <http://www.gnu.org/licenses/>. *
* *
* FTServer FTServer is the Class, that communicates headpose-data *
* to games, using the FreeTrackClient.dll. *
********************************************************************************/
/*
Modifications (last one on top):
20110401 - WVR: Moved protocol to a DLL, convenient for installation etc.
20101224 - WVR: Base class is no longer inheriting QThread. sendHeadposeToGame
is called from run() of Tracker.cpp
20100601 - WVR: Added Mutex-bit in run(). Thought it wasn't so important (still do...).
20100523 - WVR: Implemented the Freetrack-protocol just like Freetrack does. Earlier
FaceTrackNoIR only worked with an adapted DLL, with a putdata function.
Now it works direcly in shared memory!
*/
#include "ftnoir_protocol_wine.h"
#include <string.h>
#include <sys/mman.h>
#include <sys/stat.h> /* For mode constants */
#include <fcntl.h> /* For O_* constants */
/** constructor **/
FTNoIR_Protocol::FTNoIR_Protocol() : lck_shm(WINE_SHM_NAME, WINE_MTX_NAME, sizeof(WineSHM)), shm(NULL), gameid(0)
{
if (lck_shm.mem != (void*) -1) {
shm = (WineSHM*) lck_shm.mem;
memset(shm, 0, sizeof(*shm));
}
wrapper.start("wine", QStringList() << (QCoreApplication::applicationDirPath() + "/opentrack-wrapper-wine.exe.so"));
}
/** destructor **/
FTNoIR_Protocol::~FTNoIR_Protocol()
{
if (shm) {
shm->stop = true;
wrapper.waitForFinished(2000);
}
wrapper.kill();
shm_unlink("/" WINE_SHM_NAME);
}
void FTNoIR_Protocol::sendHeadposeToGame( double *headpose, double *rawheadpose ) {
if (shm)
{
lck_shm.lock();
for (int i = 0; i < 3; i++)
shm->data[i] = headpose[i] / 57.295781;
for (int i = 3; i < 6; i++)
shm->data[i] = headpose[i] * 10;
if (shm->gameid != gameid)
{
QString gamename;
QMutexLocker foo(&game_name_mutex);
/* only EZCA for FSX requires dummy process, and FSX doesn't work on Linux */
/* memory-hacks DLL can't be loaded into a Linux process, either */
CSV::getGameData(gameid, shm->table, gamename);
gameid = shm->gameid2 = shm->gameid;
connected_game = gamename;
}
lck_shm.unlock();
}
}
//
// Check if the Client DLL exists and load it (to test it), if so.
// Returns 'true' if all seems OK.
//
bool FTNoIR_Protocol::checkServerInstallationOK()
{
return lck_shm.mem != (void*)-1;
}
////////////////////////////////////////////////////////////////////////////////
// Factory function that creates instances if the Protocol object.
// Export both decorated and undecorated names.
// GetProtocol - Undecorated name, which can be easily used with GetProcAddress
// Win32 API function.
// _GetProtocol@0 - Common name decoration for __stdcall functions in C language.
//#pragma comment(linker, "/export:GetProtocol=_GetProtocol@0")
extern "C" FTNOIR_PROTOCOL_BASE_EXPORT void* CALLING_CONVENTION GetConstructor()
{
return (IProtocol*) new FTNoIR_Protocol;
}
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