80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
|
/*
|
||
|
|
game.cpp -- executable to run Xash3D Engine
|
||
|
|
Copyright (C) 2011 Uncle Mike
|
||
|
|
|
||
|
|
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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <windows.h>
|
||
|
|
|
||
|
|
#define GAME_PATH "base" // default dir to start from
|
||
|
|
|
||
|
|
#ifdef WIN32
|
||
|
|
// enable NVIDIA High Performance Graphics while using Integrated Graphics.
|
||
|
|
extern "C" __declspec(dllexport) DWORD NvOptimusEnablement = 0x00000001;
|
||
|
|
extern "C" __declspec(dllexport) DWORD AmdPowerXpressRequestHighPerformance = 1;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
typedef void (*pfnChangeGame)( const char *progname );
|
||
|
|
typedef int (*pfnInit)( const char *progname, int bChangeGame, pfnChangeGame func );
|
||
|
|
typedef void (*pfnShutdown)( void );
|
||
|
|
|
||
|
|
pfnInit Host_Main;
|
||
|
|
pfnShutdown Host_Shutdown = NULL;
|
||
|
|
char szGameDir[128]; // safe place to keep gamedir
|
||
|
|
HINSTANCE hEngine;
|
||
|
|
|
||
|
|
void Sys_Error( const char *errorstring )
|
||
|
|
{
|
||
|
|
MessageBox( NULL, errorstring, "Xash Error", MB_OK|MB_SETFOREGROUND|MB_ICONSTOP );
|
||
|
|
exit( 1 );
|
||
|
|
}
|
||
|
|
|
||
|
|
void Sys_LoadEngine( void )
|
||
|
|
{
|
||
|
|
if(( hEngine = LoadLibrary( "xash.dll" )) == NULL )
|
||
|
|
{
|
||
|
|
Sys_Error( "Unable to load the xash.dll" );
|
||
|
|
}
|
||
|
|
|
||
|
|
if(( Host_Main = (pfnInit)GetProcAddress( hEngine, "Host_Main" )) == NULL )
|
||
|
|
{
|
||
|
|
Sys_Error( "core.dll missed 'Host_Main' export" );
|
||
|
|
}
|
||
|
|
|
||
|
|
// this is non-fatal for us but change game will not working
|
||
|
|
Host_Shutdown = (pfnShutdown)GetProcAddress( hEngine, "Host_Shutdown" );
|
||
|
|
}
|
||
|
|
|
||
|
|
void Sys_UnloadEngine( void )
|
||
|
|
{
|
||
|
|
if( Host_Shutdown ) Host_Shutdown( );
|
||
|
|
if( hEngine ) FreeLibrary( hEngine );
|
||
|
|
}
|
||
|
|
|
||
|
|
void Sys_ChangeGame( const char *progname )
|
||
|
|
{
|
||
|
|
if( !progname || !progname[0] ) Sys_Error( "Sys_ChangeGame: NULL gamedir" );
|
||
|
|
if( Host_Shutdown == NULL ) Sys_Error( "Sys_ChangeGame: missed 'Host_Shutdown' export\n" );
|
||
|
|
strncpy( szGameDir, progname, sizeof( szGameDir ) - 1 );
|
||
|
|
|
||
|
|
Sys_UnloadEngine ();
|
||
|
|
Sys_LoadEngine ();
|
||
|
|
|
||
|
|
Host_Main( szGameDir, TRUE, ( Host_Shutdown != NULL ) ? Sys_ChangeGame : NULL );
|
||
|
|
}
|
||
|
|
|
||
|
|
int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow )
|
||
|
|
{
|
||
|
|
Sys_LoadEngine();
|
||
|
|
|
||
|
|
return Host_Main( GAME_PATH, FALSE, ( Host_Shutdown != NULL ) ? Sys_ChangeGame : NULL );
|
||
|
|
}
|