@ -23,9 +23,8 @@
*/
static inline int ScaleByZoom ( int value , ZoomLevel zoom )
{
if ( zoom = = ZOOM_LVL_NORMAL ) return value ;
int izoom = zoom - ZOOM_LVL_NORMAL ;
return ( zoom > ZOOM_LVL_NORMAL ) ? value < < izoom : ( value + ( 1 < < - izoom ) - 1 ) > > - izoom ;
assert ( zoom > = 0 ) ;
return value < < zoom ;
}
/**
@ -37,9 +36,8 @@ static inline int ScaleByZoom(int value, ZoomLevel zoom)
*/
static inline int UnScaleByZoom ( int value , ZoomLevel zoom )
{
if ( zoom = = ZOOM_LVL_NORMAL ) return value ;
int izoom = zoom - ZOOM_LVL_NORMAL ;
return ( zoom > ZOOM_LVL_NORMAL ) ? ( value + ( 1 < < izoom ) - 1 ) > > izoom : value < < - izoom ;
assert ( zoom > = 0 ) ;
return ( value + ( 1 < < zoom ) - 1 ) > > zoom ;
}
/**
@ -50,9 +48,8 @@ static inline int UnScaleByZoom(int value, ZoomLevel zoom)
*/
static inline int ScaleByZoomLower ( int value , ZoomLevel zoom )
{
if ( zoom = = ZOOM_LVL_NORMAL ) return value ;
int izoom = zoom - ZOOM_LVL_NORMAL ;
return ( zoom > ZOOM_LVL_NORMAL ) ? value < < izoom : value > > - izoom ;
assert ( zoom > = 0 ) ;
return value < < zoom ;
}
/**
@ -63,9 +60,8 @@ static inline int ScaleByZoomLower(int value, ZoomLevel zoom)
*/
static inline int UnScaleByZoomLower ( int value , ZoomLevel zoom )
{
if ( zoom = = ZOOM_LVL_NORMAL ) return value ;
int izoom = zoom - ZOOM_LVL_NORMAL ;
return ( zoom > ZOOM_LVL_NORMAL ) ? value > > izoom : value < < - izoom ;
assert ( zoom > = 0 ) ;
return value > > zoom ;
}
# endif /* ZOOM_FUNC_H */