define('QR_CACHEABLE',true);// use cache - more disk reads but less CPU power, masks and format templates are stored there
define('QR_CACHE_DIR',dirname(__FILE__).DIRECTORY_SEPARATOR.'cache'.DIRECTORY_SEPARATOR);// used when QR_CACHEABLE === true
define('QR_LOG_DIR',dirname(__FILE__).DIRECTORY_SEPARATOR);// default error logs dir
define('QR_FIND_BEST_MASK',true);// if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
define('QR_FIND_FROM_RANDOM',false);// if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
define('QR_DEFAULT_MASK',2);// when QR_FIND_BEST_MASK === false
define('QR_PNG_MAXIMUM_SIZE',1024);// maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images