define
  type T = any;
  devices all = {generic, cpu, cuda};
end define

declare
  name brightness;
  id 0x00010001;
  in x: T [**];
  param amount: real32;
  out o: T [**];
end declare

code begin
  algorithm unchanged begin
  o = x;
  return false;
  endalgorithm: unchanged

  algorithm direct begin
  real64 value = (real64)x + (real64)amount * x_range;
  if (value < x_min) value = x_min;
  if (value > x_max) value = x_max;
  o = (T)value;
  return false;
  endalgorithm: direct
endcode

hints begin
  pointwise: true;
  target unchanged: all;
  operations unchanged: point_count;
  requires unchanged: amount == 0.0f;
  target direct: all;
  operations direct: point_count * 3;
  prefer unchanged;
  prefer direct;
endhints