- virtual void get_output_size(unsigned *width, unsigned *height) const {
- *width = this->output_width;
- *height = this->output_height;
+ virtual void get_output_size(unsigned *width, unsigned *height, unsigned *virtual_width, unsigned *virtual_height) const {
+ *virtual_width = *width = this->output_width;
+ *virtual_height = *height = this->output_height;