File canvas-draw/canvas-draw-native.scm artifact e38dfe818a part of check-in 9616196d50

;; -*- mode: Scheme; tab-width: 2; -*- ;;

;; {{{ Data types

(foreign-declare
	"#include <cd.h>\n"
	"#include <cdnative.h>\n")

(include "canvas-draw-types.scm")

;; }}}

;; {{{ Context types

(define context:native-window
	(foreign-value "CD_NATIVEWINDOW" nonnull-context))

;; }}}

;; {{{ Auxiliary functions

(define screen-size
	(letrec ([screen-size/raw (foreign-lambda void "cdGetScreenSize" (c-pointer int) (c-pointer int) (c-pointer double) (c-pointer double))])
		(lambda ()
			(let-location ([width/px int 0] [height/px int 0]
			               [width/mm double 0] [height/mm double 0])
			  (screen-size/raw
			  	(location width/px) (location height/px)
			  	(location width/mm) (location height/mm))
			  (values
			  	width/px height/px
			  	width/mm height/mm)))))

;; }}}

;; {{{ Library initialization

(foreign-code "cdInitContextPlus();")

;; }}}