/**
 * 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."
 *
 * @file texGenAttrib.I
 * @author masad
 * @date 2004-06-21
 */

/**
 * Use TexGenAttrib::make() to construct a new TexGenAttrib object.
 */
INLINE TexGenAttrib::
TexGenAttrib() :
  _num_point_sprites(0),
  _point_geom_rendering(0),
  _geom_rendering(0)
{
}

/**
 * Use TexGenAttrib::make() to construct a new TexGenAttrib object.
 */
INLINE TexGenAttrib::
TexGenAttrib(const TexGenAttrib &copy) :
  _stages(copy._stages),
  _no_texcoords(copy._no_texcoords),
  _num_point_sprites(copy._num_point_sprites),
  _point_geom_rendering(copy._point_geom_rendering),
  _geom_rendering(copy._geom_rendering)
{
}

/**
 * Returns the union of the Geom::GeomRendering bits that will be required
 * once this TexGenAttrib is applied to a geom which includes the indicated
 * geom_rendering bits.
 */
INLINE int TexGenAttrib::
get_geom_rendering(int geom_rendering) const {
  if ((geom_rendering & Geom::GR_point) != 0) {
    geom_rendering |= _point_geom_rendering;
  }

  return geom_rendering | _geom_rendering;
}

/**
 *
 */
INLINE TexGenAttrib::ModeDef::
ModeDef() :
  _mode(M_off)
{
}

/**
 *
 */
INLINE int TexGenAttrib::ModeDef::
compare_to(const TexGenAttrib::ModeDef &other) const {
  if (_mode != other._mode) {
    return (int)_mode < (int)other._mode ? -1 : 1;
  }
  int compare = _light.compare_to(other._light);
  if (compare != 0) {
    return compare;
  }
  compare = strcmp(_source_name.c_str(), other._source_name.c_str());
  if (compare != 0) {
    return compare;
  }
  compare = _constant_value.compare_to(other._constant_value);
  return compare;
}