Bug 50257

Summary:	Please add a new operator to add min/max HSL Luminosity
Product:	cairo	Reporter:	Bug Fly <mozbugbox>
Component:	general	Assignee:	Carl Worth <cworth>
Status:	RESOLVED MOVED	QA Contact:	cairo-bugs mailing list <cairo-bugs>
Severity:	enhancement
Priority:	medium
Version:	1.12.2
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description Bug Fly 2012-05-22 21:04:06 UTC

I'd like to see operators in HSL space that force a minimal or maximal luminosity similar to the CAIRO_OPERATOR_DARKEN and CAIRO_OPERATOR_LIGHTEN:

f(cA,cB) = set_lum(cB, max(lum(cA), lum(cA) )
f(cA,cB) = set_lum(cB, min(lum(cA), lum(cA) )


This can be used to provide a more accurate dark background to a rendering than what CAIRO_OPERATOR_DARKEN can provide.

Comment 1 GitLab Migration User 2018-08-25 13:55:48 UTC

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