/**
 * 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 geomCacheManager.I
 * @author drose
 * @date 2005-03-11
 */

/**
 * Specifies the maximum number of entries in the cache for storing pre-
 * processed data for rendering vertices.  This limit is flexible, and may be
 * temporarily exceeded if many different Geoms are pre-processed during the
 * space of a single frame.
 *
 * This is not a limit on the actual vertex data, which is what it is; it is
 * also not a limit on the amount of memory used by the video driver or the
 * system graphics interface, which Panda has no control over.
 */
INLINE void GeomCacheManager::
set_max_size(int max_size) const {
  // We directly change the config variable.
  geom_cache_size = max_size;
}

/**
 * Returns the maximum number of entries in the cache for storing pre-
 * processed data for rendering vertices.  See set_max_size().
 */
INLINE int GeomCacheManager::
get_max_size() const {
  return geom_cache_size;
}

/**
 * Returns the number of entries currently in the cache.
 */
INLINE int GeomCacheManager::
get_total_size() const {
  return _total_size;
}

/**
 * Trims the cache size down to get_max_size() by evicting old cache entries
 * as needed.  It is assumed that you already hold the lock before calling
 * this method.
 */
INLINE void GeomCacheManager::
evict_old_entries() {
  evict_old_entries(get_max_size(), true);
}

/**
 * Flushes the PStatCollectors used during traversal.
 */
INLINE void GeomCacheManager::
flush_level() {
  _geom_cache_size_pcollector.flush_level();
  _geom_cache_active_pcollector.flush_level();
  _geom_cache_record_pcollector.flush_level();
  _geom_cache_erase_pcollector.flush_level();
  _geom_cache_evict_pcollector.flush_level();
}