146 lines
3.2 KiB
C++
146 lines
3.2 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//
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//=============================================================================//
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// vrad_launcher.cpp : Defines the entry point for the console application.
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//
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#include "stdafx.h"
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#include <direct.h>
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#include "tier1/strtools.h"
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#include "tier0/icommandline.h"
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char* GetLastErrorString()
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{
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static char err[2048];
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LPVOID lpMsgBuf;
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FormatMessage(
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FORMAT_MESSAGE_ALLOCATE_BUFFER |
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FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS,
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NULL,
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GetLastError(),
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
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(LPTSTR) &lpMsgBuf,
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0,
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NULL
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);
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strncpy( err, (char*)lpMsgBuf, sizeof( err ) );
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LocalFree( lpMsgBuf );
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err[ sizeof( err ) - 1 ] = 0;
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return err;
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}
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void MakeFullPath( const char *pIn, char *pOut, int outLen )
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{
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if ( pIn[0] == '/' || pIn[0] == '\\' || pIn[1] == ':' )
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{
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// It's already a full path.
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Q_strncpy( pOut, pIn, outLen );
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}
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else
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{
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_getcwd( pOut, outLen );
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Q_strncat( pOut, "\\", outLen, COPY_ALL_CHARACTERS );
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Q_strncat( pOut, pIn, outLen, COPY_ALL_CHARACTERS );
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}
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}
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int main(int argc, char* argv[])
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{
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char dllName[512];
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CommandLine()->CreateCmdLine( argc, argv );
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// check whether they used the -both switch. If this is specified, vrad will be run
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// twice, once with -hdr and once without
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int both_arg=0;
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for(int arg=1;arg<argc;arg++)
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if (Q_stricmp(argv[arg],"-both")==0)
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{
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both_arg=arg;
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}
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char fullPath[512], redirectFilename[512];
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MakeFullPath( argv[0], fullPath, sizeof( fullPath ) );
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Q_StripFilename( fullPath );
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Q_snprintf( redirectFilename, sizeof( redirectFilename ), "%s\\%s", fullPath, "vrad.redirect" );
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// First, look for vrad.redirect and load the dll specified in there if possible.
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CSysModule *pModule = NULL;
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FILE *fp = fopen( redirectFilename, "rt" );
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if ( fp )
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{
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if ( fgets( dllName, sizeof( dllName ), fp ) )
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{
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char *pEnd = strstr( dllName, "\n" );
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if ( pEnd )
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*pEnd = 0;
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pModule = Sys_LoadModule( dllName );
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if ( pModule )
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printf( "Loaded alternate VRAD DLL (%s) specified in vrad.redirect.\n", dllName );
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else
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printf( "Can't find '%s' specified in vrad.redirect.\n", dllName );
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}
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fclose( fp );
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}
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int returnValue = 0;
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for(int mode=0;mode<2;mode++)
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{
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if (mode && (! both_arg))
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continue;
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// If it didn't load the module above, then use the
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if ( !pModule )
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{
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strcpy( dllName, "vrad_dll.dll" );
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pModule = Sys_LoadModule( dllName );
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}
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if( !pModule )
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{
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printf( "vrad_launcher error: can't load %s\n%s", dllName, GetLastErrorString() );
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return 1;
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}
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CreateInterfaceFn fn = Sys_GetFactory( pModule );
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if( !fn )
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{
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printf( "vrad_launcher error: can't get factory from vrad_dll.dll\n" );
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Sys_UnloadModule( pModule );
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return 2;
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}
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int retCode = 0;
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IVRadDLL *pDLL = (IVRadDLL*)fn( VRAD_INTERFACE_VERSION, &retCode );
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if( !pDLL )
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{
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printf( "vrad_launcher error: can't get IVRadDLL interface from vrad_dll.dll\n" );
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Sys_UnloadModule( pModule );
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return 3;
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}
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if (both_arg)
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strcpy(argv[both_arg],(mode)?"-hdr":"-ldr");
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returnValue = pDLL->main( argc, argv );
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Sys_UnloadModule( pModule );
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pModule=0;
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}
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return returnValue;
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}
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