internal/graphicsdriver/opengl/gl/package_notwindows.go
func PixelZoom(xfactor float32, yfactor float32) {
	C.glowPixelZoom(gpPixelZoom, (C.GLfloat)(xfactor), (C.GLfloat)(yfactor))
}
func PixelZoom(xfactor float32, yfactor float32) {
	C.glowPixelZoom(gpPixelZoom, (C.GLfloat)(xfactor), (C.GLfloat)(yfactor))
}
// specify the pixel zoom factors