xref: /inferno-os/module/math/polyfill.m (revision 46439007cf417cbd9ac8049bb4122c890097a0fa) 
1Polyfill: module
2{
3	PATH: con "/dis/math/polyfill.dis";
4
5	Zstate: adt{
6		r: Draw->Rect;
7		zbuf0, zbuf1: array of int;
8		xlen: int;
9		ylen: int;
10		xylen: int;
11	};
12
13	init: fn();
14	initzbuf: fn(r: Draw->Rect): ref Zstate;
15	clearzbuf: fn(s: ref Zstate);
16	setzbuf: fn(s: ref Zstate, zd: int);
17	fillpoly: fn(d: ref Image, v: array of Point, w: int, s: ref Image, p: Point, zstate: ref Zstate, dc, dx, dy: int);
18};