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.

AUTHORS

Jesse Barnes <[email protected]>
Intel Corporation,         
        

Initial version

Laurent Pinchart <[email protected]>
Ideas on board SPRL,         
        

Driver internals

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