diff options
Diffstat (limited to 'freetrackclient/freetrackclient.c')
| -rw-r--r-- | freetrackclient/freetrackclient.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/freetrackclient/freetrackclient.c b/freetrackclient/freetrackclient.c new file mode 100644 index 00000000..007d073f --- /dev/null +++ b/freetrackclient/freetrackclient.c @@ -0,0 +1,151 @@ +/*********************************************************************************** + * * FTTypes FTTypes contains the specific type definitions for the * + * * FreeTrack protocol. * + * * It was loosely translated from FTTypes.pas * + * * which was created by the FreeTrack-team. * + * * * + * * Wim Vriend (Developing) * + * * Ron Hendriks (Testing and Research) * + * * * + * * Homepage <http://facetracknoir.sourceforge.net/home/default.htm> * + * * * + * * 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. * + * * * + * * * + * * The FreeTrackClient sources were translated from the original Delphi sources * + * * created by the FreeTrack developers. * + */ +#define NP_AXIS_MAX 16383 + +#include <stdarg.h> +#include <stdbool.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <windows.h> + +#include "ftnoir_protocol_ft/fttypes.h" + +#define FT_EXPORT(t) __declspec(dllexport) t __stdcall + +FT_EXPORT(bool) FTCreateMapping(void); + +#if 0 +static FILE *debug_stream = fopen("c:\\FreeTrackClient.log", "a"); +#define dbg_report(...) if (debug_stream) { fprintf(debug_stream, __VA_ARGS__); fflush(debug_stream); } +#else +#define dbg_report(...) ((void)0) +#endif + +static HANDLE hFTMemMap = 0; +static FTHeap *pMemData = 0; +static HANDLE hFTMutex = 0; +static const char* dllVersion = "1.0.0.0"; +static const char* dllProvider = "FreeTrack"; + +BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) +{ + switch (fdwReason) { + case DLL_PROCESS_ATTACH: +#ifdef WIN64 + dbg_report("\n= WIN64 =========================================================================================\n"); +#else + dbg_report("\n= WIN32 =========================================================================================\n"); +#endif + dbg_report("DllMain: (0x%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved); + dbg_report("DllMain: Attach request\n"); + DisableThreadLibraryCalls(hinstDLL); + break; + + case DLL_PROCESS_DETACH: + dbg_report("DllMain: Detach\n"); + dbg_report("DllMain: (0x%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved); + dbg_report("==========================================================================================\n"); + break; + } + return TRUE; +} + +FT_EXPORT(bool) FTGetData(FTData* data) +{ +// dbg_report("NP_GetData called."); + if (FTCreateMapping() == false) + return false; + + if (hFTMutex && WaitForSingleObject(hFTMutex, 16) == WAIT_OBJECT_0) { + if (pMemData) { + if (pMemData->data.DataID > (1 << 29)) { + pMemData->data.DataID = 0; + } + data->DataID = pMemData->data.DataID; + } + ReleaseMutex(hFTMutex); + } + return true; +} + +// For some mysterious reason, the previously existing function FTReportID has been changed to FTReportName, but with an integer as argument. +// The Delphi-code from the FreeTrack repo suggest a char * as argument, so it cost me an afternoon to figure it out (and keep ArmA2 from crashing). +// Thanks guys! +// +FT_EXPORT(void) FTReportName( int name ) +{ + dbg_report("FTReportName request (ID = %d).\n", name); +} + +FT_EXPORT(const char*) FTGetDllVersion(void) +{ + dbg_report("FTGetDllVersion request.\n"); + + return dllVersion; +} + +FT_EXPORT(const char*) FTProvider(void) +{ + dbg_report("FTProvider request.\n"); + + return dllProvider; +} + +// +// 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! +// +// +FT_EXPORT(bool) FTCreateMapping(void) +{ + if ( pMemData != NULL ) { + return true; + } + + dbg_report("FTCreateMapping request (pMemData == NULL).\n"); + + hFTMemMap = CreateFileMappingA( INVALID_HANDLE_VALUE , 00 , PAGE_READWRITE , 0 , + sizeof( FTHeap ), + (LPCSTR) FT_MM_DATA ); + + if (hFTMemMap == NULL) + { + pMemData = NULL; + return false; + } + + pMemData = (FTHeap*) MapViewOfFile(hFTMemMap, FILE_MAP_WRITE, 0, 0, sizeof( FTHeap ) ); + hFTMutex = CreateMutexA(NULL, false, FREETRACK_MUTEX); + + return true; +} + +FT_EXPORT(void) FTDestroyMapping(void) +{ + if ( pMemData != NULL ) { + UnmapViewOfFile ( pMemData ); + } + + CloseHandle( hFTMutex ); + CloseHandle( hFTMemMap ); + pMemData = 0; + hFTMemMap = 0; +} |