void PNGAPI png_set_sCAL ( png_structp png_ptr , png_infop info_ptr , int unit , double width , double height ) {
 png_debug1 ( 1 , "in %s storage function" , "sCAL" ) ;
 if ( png_ptr == NULL || info_ptr == NULL ) return ;
 info_ptr -> scal_unit = ( png_byte ) unit ;
 info_ptr -> scal_pixel_width = width ;
 info_ptr -> scal_pixel_height = height ;
 info_ptr -> valid |= PNG_INFO_sCAL ;
 }
void PNGAPI png_set_sCAL ( png_structp png_ptr , png_infop info_ptr , int unit , double width , double height ) {
 png_debug1 ( 1 , "in %s storage function" , "sCAL" ) ;
 if ( png_ptr == NULL || info_ptr == NULL ) return ;
 info_ptr -> scal_unit = ( png_byte ) unit ;
 info_ptr -> scal_pixel_width = width ;
 info_ptr -> scal_pixel_height = height ;
 info_ptr -> valid |= PNG_INFO_sCAL ;
 }