drm_rect_calc_vscale_relaxed
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Name

drm_rect_calc_vscale_relaxed — calculate the vertical scaling factor

Synopsis

int drm_rect_calc_vscale_relaxed (struct drm_rect * src,
 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

Description

Calculate the vertical scaling factor as (src height) / (dst height).

If the calculated scaling factor is below min_vscale, decrease the height of rectangle dst to compensate.

If the calculated scaling factor is above max_vscale, decrease the height of rectangle src to compensate.

RETURNS

The vertical scaling factor.

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