forked from a1batross/Paranoia2_original
80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
/*
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game.cpp -- executable to run Xash3D Engine
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Copyright (C) 2011 Uncle Mike
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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*/
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#include <windows.h>
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#define GAME_PATH "base" // default dir to start from
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#ifdef WIN32
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// enable NVIDIA High Performance Graphics while using Integrated Graphics.
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extern "C" __declspec(dllexport) DWORD NvOptimusEnablement = 0x00000001;
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extern "C" __declspec(dllexport) DWORD AmdPowerXpressRequestHighPerformance = 1;
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#endif
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typedef void (*pfnChangeGame)( const char *progname );
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typedef int (*pfnInit)( const char *progname, int bChangeGame, pfnChangeGame func );
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typedef void (*pfnShutdown)( void );
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pfnInit Host_Main;
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pfnShutdown Host_Shutdown = NULL;
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char szGameDir[128]; // safe place to keep gamedir
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HINSTANCE hEngine;
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void Sys_Error( const char *errorstring )
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{
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MessageBox( NULL, errorstring, "Xash Error", MB_OK|MB_SETFOREGROUND|MB_ICONSTOP );
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exit( 1 );
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}
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void Sys_LoadEngine( void )
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{
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if(( hEngine = LoadLibrary( "xash.dll" )) == NULL )
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{
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Sys_Error( "Unable to load the xash.dll" );
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}
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if(( Host_Main = (pfnInit)GetProcAddress( hEngine, "Host_Main" )) == NULL )
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{
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Sys_Error( "core.dll missed 'Host_Main' export" );
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}
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// this is non-fatal for us but change game will not working
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Host_Shutdown = (pfnShutdown)GetProcAddress( hEngine, "Host_Shutdown" );
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}
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void Sys_UnloadEngine( void )
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{
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if( Host_Shutdown ) Host_Shutdown( );
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if( hEngine ) FreeLibrary( hEngine );
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}
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void Sys_ChangeGame( const char *progname )
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{
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if( !progname || !progname[0] ) Sys_Error( "Sys_ChangeGame: NULL gamedir" );
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if( Host_Shutdown == NULL ) Sys_Error( "Sys_ChangeGame: missed 'Host_Shutdown' export\n" );
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strncpy( szGameDir, progname, sizeof( szGameDir ) - 1 );
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Sys_UnloadEngine ();
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Sys_LoadEngine ();
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Host_Main( szGameDir, TRUE, ( Host_Shutdown != NULL ) ? Sys_ChangeGame : NULL );
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}
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int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow )
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{
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Sys_LoadEngine();
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return Host_Main( GAME_PATH, FALSE, ( Host_Shutdown != NULL ) ? Sys_ChangeGame : NULL );
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} |