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Article contents:== Outdated egg! This is an egg for CHICKEN 4, the unsupported old release. You're almost certainly looking for [[/eggref/5/allegro|the CHICKEN 5 version of this egg]], if it exists. If it does not exist, there may be equivalent functionality provided by another egg; have a look at the [[https://wiki.call-cc.org/chicken-projects/egg-index-5.html|egg index]]. Otherwise, please consider porting this egg to the current version of CHICKEN. [[tags: allegro game]] == allegro This document pertains to color related methods found in the Allegro egg. Please see the main [allegro] wiki page for more information. [[toc:]] == Records === color <record>color</record> <procedure>(make-color*)</procedure> <procedure>(make-color)</procedure> <procedure>(free-color! color)</procedure> <procedure>(color-red color)</procedure> <procedure>(color-green color)</procedure> <procedure>(color-blue color)</procedure> <procedure>(color-alpha color)</procedure> == Functions === Color <procedure>(color-addon-version)</procedure> Implements al_get_allegro_color_version. <procedure>(hsv->rgb (float h) (float s) (float v))</procedure> Returns a 3-element list consisting of the rgb elements. <procedure>(rgb->hsl (float red) (float green) (float blue))</procedure> Returns a 3-element list consisting of the hsl elements. <procedure>(hsl->rgb (float hue) (float saturation) (float lightness))</procedure> Returns a 3-element list consisting of the rgb elements. <procedure>(name->rgb string)</procedure> Returns a 3-element list consisting of the rgb elements. <procedure>(rgb->name (float red) (float green) (float blue))</procedure> Returns a string representation of the rgb elements. <procedure>(cmyk->rgb (float cyan) (float magenta) (float yellow) (float key))</procedure> Returns a 3-element list consisting of the rgb elements. <procedure>(rgb->cmyk (float red) (float green) (float blue))</procedure> Returns a 4-element list consisting of the cmyk elements. <procedure>(yuv->rgb (float y) (float u) (float v))</procedure> Returns a 3-element list consisting of the rgb elements. <procedure>(rgb->yuv (float red) (float green) (float blue))</procedure> Returns a 3-element list consisting of the yuv elements. <procedure>(rgb->html (float red) (float green) (float blue))</procedure> Returns a string consisting of the html representation. <procedure>(html->rgb string)</procedure> Returns a 3-element list consisting of the rgb elements. <procedure>(make-color-rgb* (integer r) (integer g) (integer b))</procedure> Creates a color struct from rgb elements. <procedure>(make-color-rgb (integer r) (integer g) (integer b))</procedure> Creates a color struct from rgb elements, with (free-color!) declared as a finalizer. <procedure>(make-color-rgba*(integer r) (integer g) (integer b) (integer a))</procedure> Creates a color struct from rgba elements. <procedure>(make-color-rgba (integer r) (integer g) (integer b) (integer a))</procedure> Creates a color struct from rgba elements, with (free-color!) declared as a finalizer. <procedure>(make-color-yuv* (integer y) (integer u) (integer v))</procedure> Creates a color struct from yuv elements. <procedure>(make-color-yuv (integer y) (integer u) (integer v))</procedure> Creates a color struct from yuv elements, with (free-color!) declared as a finalizer. <procedure>(make-color-cmyk* (integer c) (integer m) (integer y) (integer k))</procedure> Creates a color struct from cmyk elements. <procedure>(make-color-cmyk (integer c) (integer m) (integer y) (integer k))</procedure> Creates a color struct from cmyk elements, with (free-color!) declared as a finalizer. <procedure>(make-color-hsl*(integer h) (integer s) (integer l))</procedure> Creates a color struct from hsl elements. <procedure>(make-color-hsl (integer h) (integer s) (integer l))</procedure> Creates a color struct from hsl elements, with (free-color!) declared as a finalizer. <procedure>(make-color-hsv*(integer h) (integer s) (integer v))</procedure> Creates a color struct from hsv elements. <procedure>(make-color-hsv (integer h) (integer s) (integer v))</procedure> Creates a color struct from hsv elements, with (free-color!) declared as a finalizer. <procedure>(make-color-name* string)</procedure> Creates a color struct from a string name. <procedure>(make-color-name string)</procedure> Creates a color struct from a string name, with (free-color!) declared as a finalizer. <procedure>(make-color-html* string)</procedure> Creates a color struct from a html representation. <procedure>(make-color-html string)</procedure> Creates a color struct from a html representation, with (free-color!) declared as a finalizer. <procedure>(color-yuv! color (float y) (float u) (float v))</procedure> Maps yuv elements to a color struct. <procedure>(color-cmyk! color (float c) (float m) (float y) (float k))</procedure> Maps cmyk elements to a color struct. <procedure>(color-hsl! color (float h) (float s) (float l))</procedure> Maps hsl elements to a color struct. <procedure>(color-hsv! color (float h) (float s) (float v))</procedure> Maps hsv elements to a color struct. <procedure>(color-name! color string)</procedure> Maps a color name to a color struct. <procedure>(color-html! color string)</procedure> Maps a html representation to a color struct. 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