Source position: gl.pp line 1308
var glMap2d: procedure(
target: GLenum;
u1: GLdouble;
u2: GLdouble;
ustride: GLint;
uorder: GLint;
v1: GLdouble;
v2: GLdouble;
vstride: GLint;
vorder: GLint;
const points: PGLdouble
);