drm_rect_calc_vscale9
Calculate the vertical scaling factor
Usage
int drm_rect_calc_vscale(const struct drm_rect * src, const struct drm_rect * dst, int min_vscale, int max_vscale);
Arguments
src
source window rectangle
dst
destination window rectangle
min_vscale
minimum allowed vertical scaling factor
max_vscale
maximum allowed vertical scaling factor
Overview
Calculate the vertical scaling factor as (src height) / (dst height).
Returns
The vertical scaling factor, or errno of out of limits.