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