/**
* Registers a custom mapper for image loading and saving
*
* Example:
* <code>
* WideImage::registerCustomMapper('WideImage_Mapper_TGA', 'image/tga', 'tga');
* </code>
*
* @param string $mapper_class_name
* @param string $mime_type
* @param string $extension
*/
static function registerCustomMapper($mapper_class_name, $mime_type, $extension)
{
WideImage_MapperFactory::registerMapper($mapper_class_name, $mime_type, strtoupper($extension));
}
