engine: client: m_rawinput support on windows

engine/client/input.c

@@ -47,6 +47,10 @@ convar_t *cl_sidespeed;
 convar_t *cl_backspeed;
 convar_t *look_filter;
 
+#if XASH_WIN32
+convar_t *m_rawinput;
+#endif
+
 /*
 ================
 IN_CollectInputDevices
@@ -118,6 +122,10 @@ void IN_StartupMouse( void )
 	m_yaw = Cvar_Get( "m_yaw", "0.022", FCVAR_ARCHIVE, "mouse yaw value" );
 	look_filter = Cvar_Get( "look_filter", "0", FCVAR_ARCHIVE, "filter look events making it smoother" );
 
+#if XASH_WIN32
+	m_rawinput = Cvar_Get( "m_rawinput", "1", FCVAR_ARCHIVE, "enable mouse raw input" );
+#endif
+
 	// You can use -nomouse argument to prevent using mouse from client
 	// -noenginemouse will disable all mouse input
 	if( Sys_CheckParm(  "-noenginemouse" )) return;
@@ -207,8 +215,14 @@ void IN_ToggleClientMouse( int newstate, int oldstate )
 #if XASH_SDL
 			SDL_SetWindowGrab( host.hWnd, SDL_TRUE );
 #if SDL_VERSION_ATLEAST( 2, 0, 0 )
-			if( clgame.dllFuncs.pfnLookEvent )
+#if XASH_WIN32
+			if ( clgame.dllFuncs.pfnLookEvent || ( clgame.client_dll_uses_sdl && CVAR_TO_BOOL( m_rawinput ) ) )
+#else
+			if ( clgame.dllFuncs.pfnLookEvent )
+#endif // XASH_WIN32
+			{
 				SDL_SetRelativeMouseMode( SDL_TRUE );
+			}
 #endif
 #endif // XASH_SDL
 		}
@@ -221,8 +235,14 @@ void IN_ToggleClientMouse( int newstate, int oldstate )
 #ifdef XASH_SDL
 		SDL_SetWindowGrab(host.hWnd, SDL_FALSE);
 #if SDL_VERSION_ATLEAST( 2, 0, 0 )
-		if( clgame.dllFuncs.pfnLookEvent )
+#if XASH_WIN32
+		if ( clgame.dllFuncs.pfnLookEvent || ( clgame.client_dll_uses_sdl && CVAR_TO_BOOL( m_rawinput ) ) )
+#else
+		if ( clgame.dllFuncs.pfnLookEvent )
+#endif // XASH_WIN32
+		{
 			SDL_SetRelativeMouseMode( SDL_FALSE );
+		}
 #endif
 #endif // XASH_SDL
 #if XASH_ANDROID

engine/platform/sdl/in_sdl.c

@@ -64,10 +64,9 @@ Platform_MouseMove
 void Platform_MouseMove( float *x, float *y )
 {
 	int m_x, m_y;
-	SDL_GetMouseState( &m_x, &m_y );
+	SDL_GetRelativeMouseState( &m_x, &m_y );
 	*x = (float)m_x;
 	*y = (float)m_y;
-
 }
 
 /*