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game_launch: explicitly call wide or ascii Win32 API function calls

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This commit is contained in:
Alibek Omarov 2025-03-16 20:41:17 +03:00
parent a84204fc75
commit d13429a287
1 changed files with 63 additions and 38 deletions
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101
game_launch/game.cpp
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@ -23,14 +23,11 @@ GNU General Public License for more details.
#if XASH_POSIX
#define XASHLIB "libxash." OS_LIB_EXT
#define LoadLibrary( x ) dlopen( x, RTLD_NOW )
#define GetProcAddress( x, y ) dlsym( x, y )
#define FreeLibrary( x ) dlclose( x )
#elif XASH_WIN32
#include <shellapi.h> // CommandLineToArgvW
#define XASHLIB "xash.dll"
#define SDL2LIB "SDL2.dll"
#define dlerror() GetStringLastError()
#define XASHLIB L"xash.dll"
#define SDL2LIB L"SDL2.dll"
extern "C"
{
@ -52,14 +49,14 @@ typedef void (*pfnChangeGame)( const char *progname );
typedef int (*pfnInit)( int argc, char **argv, const char *progname, int bChangeGame, pfnChangeGame func );
typedef void (*pfnShutdown)( void );
static pfnInit Xash_Main;
static pfnShutdown Xash_Shutdown = NULL;
static pfnInit Host_Main;
static pfnShutdown Host_Shutdown = NULL;
static char szGameDir[128]; // safe place to keep gamedir
static int szArgc;
static char **szArgv;
static HINSTANCE hEngine;
static void Xash_Error( const char *szFmt, ... )
static void Launch_Error( const char *szFmt, ... )
{
static char buffer[16384]; // must support > 1k messages
va_list args;
@ -68,7 +65,7 @@ static void Xash_Error( const char *szFmt, ... )
vsnprintf( buffer, sizeof(buffer), szFmt, args );
va_end( args );
#if defined( _WIN32 )
#if XASH_WIN32
MessageBoxA( NULL, buffer, "Xash Error", MB_OK );
#else
fprintf( stderr, "Xash Error: %s\n", buffer );
@ -77,7 +74,7 @@ static void Xash_Error( const char *szFmt, ... )
exit( 1 );
}
#ifdef _WIN32
#if XASH_WIN32
static const char *GetStringLastError()
{
static char buf[1024];
@ -93,40 +90,62 @@ static const char *GetStringLastError()
static void Sys_LoadEngine( void )
{
#if XASH_WIN32
HMODULE hSdl;
HMODULE hSDL = LoadLibraryExW( SDL2LIB, NULL, LOAD_LIBRARY_AS_DATAFILE );
if (( hSdl = LoadLibraryEx( SDL2LIB, NULL, LOAD_LIBRARY_AS_DATAFILE )) == NULL )
if( !hSDL )
{
Xash_Error("Unable to load the " SDL2LIB ": %s", dlerror() );
Launch_Error("Unable to load %ls: %s", SDL2LIB, GetStringLastError( ));
return;
}
else
FreeLibrary( hSDL );
hEngine = LoadLibraryW( XASHLIB );
if( !hEngine )
{
FreeLibrary( hSdl );
Launch_Error( "Unable to load %ls: %s", XASHLIB, GetStringLastError( ));
return;
}
Host_Main = (pfnInit)GetProcAddress( hEngine, "Host_Main" );
if( !Host_Main )
{
Launch_Error( "%ls missed 'Host_Main' export: %s", XASHLIB, GetStringLastError( ));
return;
}
Host_Shutdown = (pfnShutdown)GetProcAddress( hEngine, "Host_Shutdown" );
#elif XASH_POSIX
hEngine = dlopen( XASHLIB, RTLD_NOW );
if( !hEngine )
{
Launch_Error( "Unable to load %s: %s", XASHLIB, dlerror( ));
return;
}
Host_Main = (pfnInit)dlsym( hEngine, "Host_Main" );
if( !Host_Main )
{
Launch_Error( "%s missed 'Host_Main' export: %s", XASHLIB, dlerror( ));
return;
}
Host_Shutdown = (pfnShutdown)dlsym( hEngine, "Host_Shutdown" );
#else
#error "port me!"
#endif
if(( hEngine = LoadLibrary( XASHLIB )) == NULL )
{
Xash_Error("Unable to load the " XASHLIB ": %s", dlerror() );
}
if(( Xash_Main = (pfnInit)GetProcAddress( hEngine, "Host_Main" )) == NULL )
{
Xash_Error( XASHLIB " missed 'Host_Main' export: %s", dlerror() );
}
// this is non-fatal for us but change game will not working
Xash_Shutdown = (pfnShutdown)GetProcAddress( hEngine, "Host_Shutdown" );
}
static void Sys_UnloadEngine( void )
{
if( Xash_Shutdown ) Xash_Shutdown( );
if( Host_Shutdown ) Host_Shutdown( );
if( hEngine ) FreeLibrary( hEngine );
hEngine = NULL;
Xash_Main = NULL;
Xash_Shutdown = NULL;
Host_Main = NULL;
Host_Shutdown = NULL;
}
static void Sys_ChangeGame( const char *progname )
@ -134,19 +153,25 @@ static void Sys_ChangeGame( const char *progname )
// a1ba: may never be called within engine
// if platform supports execv() function
if( !progname || !progname[0] )
Xash_Error( "Sys_ChangeGame: NULL gamedir" );
{
Launch_Error( "Sys_ChangeGame: NULL gamedir" );
return;
}
if( Xash_Shutdown == NULL )
Xash_Error( "Sys_ChangeGame: missed 'Host_Shutdown' export\n" );
if( Host_Shutdown == NULL )
{
Launch_Error( "Sys_ChangeGame: missed 'Host_Shutdown' export\n" );
return;
}
strncpy( szGameDir, progname, sizeof( szGameDir ) - 1 );
Sys_UnloadEngine();
Sys_LoadEngine ();
Xash_Main( szArgc, szArgv, szGameDir, 1, Sys_ChangeGame );
Host_Main( szArgc, szArgv, szGameDir, 1, Sys_ChangeGame );
}
_inline int Sys_Start( void )
static int Sys_Start( void )
{
int ret;
pfnChangeGame changeGame = NULL;
@ -168,10 +193,10 @@ _inline int Sys_Start( void )
Sys_LoadEngine();
if( Xash_Shutdown )
if( Host_Shutdown )
changeGame = Sys_ChangeGame;
ret = Xash_Main( szArgc, szArgv, szGameDir, 0, XASH_DISABLE_MENU_CHANGEGAME ? NULL : changeGame );
ret = Host_Main( szArgc, szArgv, szGameDir, 0, XASH_DISABLE_MENU_CHANGEGAME ? NULL : changeGame );
Sys_UnloadEngine();