41 lines
1.6 KiB
Plaintext
41 lines
1.6 KiB
Plaintext
// Filename: renderEffect.I
|
|
// Created by: drose (14Mar02)
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
//
|
|
// PANDA 3D SOFTWARE
|
|
// Copyright (c) Carnegie Mellon University. All rights reserved.
|
|
//
|
|
// All use of this software is subject to the terms of the revised BSD
|
|
// license. You should have received a copy of this license along
|
|
// with this source code in a file named "LICENSE."
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Function: RenderEffect::compare_to
|
|
// Access: Published
|
|
// Description: Provides an arbitrary ordering among all unique
|
|
// RenderEffects, so we can store the essentially
|
|
// different ones in a big set and throw away the rest.
|
|
//
|
|
// This method is not needed outside of the RenderEffect
|
|
// class because all equivalent RenderEffect objects are
|
|
// guaranteed to share the same pointer; thus, a pointer
|
|
// comparison is always sufficient.
|
|
////////////////////////////////////////////////////////////////////
|
|
INLINE int RenderEffect::
|
|
compare_to(const RenderEffect &other) const {
|
|
// First, we compare the types; if they are of different types then
|
|
// they sort differently.
|
|
TypeHandle type = get_type();
|
|
TypeHandle other_type = other.get_type();
|
|
if (type != other_type) {
|
|
return type.get_index() - other_type.get_index();
|
|
}
|
|
|
|
// We only call compare_to_impl() if they have the same type.
|
|
return compare_to_impl(&other);
|
|
}
|