drm_rect_calc_hscale
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Name

drm_rect_calc_hscale — calculate the horizontal scaling factor

Synopsis

int drm_rect_calc_hscale (const struct drm_rect * src,
 const struct drm_rect * dst,
 int min_hscale,
 int max_hscale);
 

Arguments

src

source window rectangle

dst

destination window rectangle

min_hscale

minimum allowed horizontal scaling factor

max_hscale

maximum allowed horizontal scaling factor

Description

Calculate the horizontal scaling factor as (src width) / (dst width).

RETURNS

The horizontal scaling factor, or errno of out of limits.

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drm_rect_clip_scaled Home drm_rect_calc_vscale