wrap effects/SkLumaColorFilter.h
+use crate::prelude::*;
+use crate::ColorFilter;
+use skia_bindings as sb;
+use skia_bindings::SkColorFilter;
+
+impl RCHandle<SkColorFilter> {
+ pub fn luma() -> ColorFilter {
+ new()
+ }
+}
+
+pub fn new() -> ColorFilter {
+ ColorFilter::from_ptr(unsafe { sb::C_SkLumaColorFilter_Make() }).unwrap()
+}
+
+// TODO: asFragmentProcessor()
