From 2b50200ca979cbf33d8e67503db341a6f62d1604 Mon Sep 17 00:00:00 2001 From: Stanislaw Halik Date: Wed, 17 Sep 2014 12:47:48 +0200 Subject: ftclient: compile as C, cleanup --- freetrackclient/freetrackclient.c | 151 ++++++++++++++++++++++++ freetrackclient/freetrackclient.cpp | 224 ------------------------------------ 2 files changed, 151 insertions(+), 224 deletions(-) create mode 100644 freetrackclient/freetrackclient.c delete mode 100644 freetrackclient/freetrackclient.cpp (limited to 'freetrackclient') 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 * + * * * + * * 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 +#include +#include +#include +#include +#include + +#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; +} diff --git a/freetrackclient/freetrackclient.cpp b/freetrackclient/freetrackclient.cpp deleted file mode 100644 index 816e7b65..00000000 --- a/freetrackclient/freetrackclient.cpp +++ /dev/null @@ -1,224 +0,0 @@ -/*********************************************************************************** - * * 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 * - * * * - * * 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 -#include -#include -#include -#include -//#include - -#include "ftnoir_protocol_ft/fttypes.h" - -#define FT_EXPORT(t) extern "C" __declspec(dllexport) t __stdcall - -// -// Functions to create/open the file-mapping -// and to destroy it again. -// -static float scale2AnalogLimits( float x, float min_x, float max_x ); -static float getDegreesFromRads ( float rads ); -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(...) -#endif - -// -// Handles to 'handle' the memory mapping -// -static HANDLE hFTMemMap = 0; -static FTMemMap *pMemData = 0; -static HANDLE hFTMutex = 0; -static const char* dllVersion = "1.0.0.0"; -static const char* dllProvider = "FreeTrack"; - -// -// DllMain gets called, when the DLL is (un)loaded or a process attaches. -// -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; -} - -/****************************************************************** - * FTGetData (FreeTrackClient.1) - */ - -#pragma comment(linker, "/export:FTGetData@4=FTGetData") -FT_EXPORT(bool) FTGetData(PFreetrackData data) -{ -// dbg_report("NP_GetData called."); - if (FTCreateMapping() == false) return false; - - if (hFTMutex && WaitForSingleObject(hFTMutex, 5) == WAIT_OBJECT_0) { - if (pMemData) { - // - // Limit the range of DataID - // - if (pMemData->data.DataID > 1000) { - pMemData->data.DataID = 0; - } - data->DataID = pMemData->data.DataID; - - } - ReleaseMutex(hFTMutex); - } - return true; -} - -/****************************************************************** - * FTReportName (FreeTrackClient.2) - */ -#pragma comment(linker, "/export:FTReportName@4=FTReportName") -// -// 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); -} - -/****************************************************************** - * FTGetDllVersion (FreeTrackClient.3) - */ -#pragma comment(linker, "/export:FTGetDllVersion@0=FTGetDllVersion") -FT_EXPORT(const char*) FTGetDllVersion(void) -{ - dbg_report("FTGetDllVersion request.\n"); - - return dllVersion; -} - -/****************************************************************** - * FTProvider (FreeTrackClient.4) - */ -#pragma comment(linker, "/export:FTProvider@0=FTProvider") -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) -{ - // - // Memory-mapping already exists! - // - if ( pMemData != NULL ) { - return true; - } - - dbg_report("FTCreateMapping request (pMemData == NULL).\n"); - - // - // A FileMapping is used to create 'shared memory' between the FTClient and the FTServer. - // - // Try to create a FileMapping to the Shared Memory. This is done to check if it's already there (what - // may mean the face-tracker program is already running). - // - // If one already exists: close it and open the file-mapping to the existing one. - // - hFTMemMap = CreateFileMappingA( INVALID_HANDLE_VALUE , 00 , PAGE_READWRITE , 0 , - sizeof( FTMemMap ), - (LPCSTR) FT_MM_DATA ); - - if (hFTMemMap == NULL) - { - pMemData = NULL; - return false; - } - - pMemData = (FTMemMap *) MapViewOfFile(hFTMemMap, FILE_MAP_WRITE, 0, 0, sizeof( FTMemMap ) ); - hFTMutex = CreateMutexA(NULL, false, FREETRACK_MUTEX); - - return true; -} - -// -// Destory the FileMapping to the shared memory -// -FT_EXPORT(void) FTDestroyMapping(void) -{ - if ( pMemData != NULL ) { - UnmapViewOfFile ( pMemData ); - } - - CloseHandle( hFTMutex ); - CloseHandle( hFTMemMap ); - pMemData = 0; - hFTMemMap = 0; -} - -// -// 4 convenience -// -static float getDegreesFromRads ( float rads ) { - return (rads * 57.295781f); -} - -// -// Scale the measured value to the TIR values -// -static float scale2AnalogLimits( float x, float min_x, float max_x ) { -double y; -double local_x; - - local_x = x; - if (local_x > max_x) { - local_x = max_x; - } - if (local_x < min_x) { - local_x = min_x; - } - y = ( NP_AXIS_MAX * local_x ) / max_x; - - return (float) y; -} -- cgit v1.2.3