127 lines
2.9 KiB
C++
127 lines
2.9 KiB
C++
/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file materialPool.cxx
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* @author drose
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* @date 2001-04-30
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*/
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#include "materialPool.h"
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#include "config_gobj.h"
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#include "lightMutexHolder.h"
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MaterialPool *MaterialPool::_global_ptr = nullptr;
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/**
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* Lists the contents of the material pool to the indicated output stream.
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*/
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void MaterialPool::
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write(std::ostream &out) {
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get_global_ptr()->ns_list_contents(out);
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}
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/**
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* The nonstatic implementation of get_material().
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*/
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Material *MaterialPool::
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ns_get_material(Material *temp) {
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LightMutexHolder holder(_lock);
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CPT(Material) cpttemp = temp;
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Materials::iterator mi = _materials.find(cpttemp);
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if (mi == _materials.end()) {
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mi = _materials.insert(Materials::value_type(new Material(*temp), temp)).first;
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} else {
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if (*(*mi).first != *(*mi).second) {
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// The pointer no longer matches its original value. Save a new one.
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(*mi).second = temp;
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}
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}
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return (*mi).second;
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}
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/**
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* The nonstatic implementation of release_material().
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*/
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void MaterialPool::
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ns_release_material(Material *temp) {
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LightMutexHolder holder(_lock);
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CPT(Material) cpttemp = temp;
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_materials.erase(cpttemp);
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}
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/**
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* The nonstatic implementation of release_all_materials().
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*/
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void MaterialPool::
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ns_release_all_materials() {
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LightMutexHolder holder(_lock);
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_materials.clear();
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}
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/**
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* The nonstatic implementation of garbage_collect().
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*/
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int MaterialPool::
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ns_garbage_collect() {
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LightMutexHolder holder(_lock);
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int num_released = 0;
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Materials new_set;
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Materials::iterator mi;
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for (mi = _materials.begin(); mi != _materials.end(); ++mi) {
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const Material *mat1 = (*mi).first;
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Material *mat2 = (*mi).second;
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if ((*mat1) != (*mat2) || mat2->get_ref_count() == 1) {
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if (gobj_cat.is_debug()) {
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gobj_cat.debug()
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<< "Releasing " << *mat1 << "\n";
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}
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++num_released;
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} else {
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new_set.insert(new_set.end(), *mi);
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}
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}
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_materials.swap(new_set);
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return num_released;
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}
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/**
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* The nonstatic implementation of list_contents().
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*/
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void MaterialPool::
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ns_list_contents(std::ostream &out) const {
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LightMutexHolder holder(_lock);
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out << _materials.size() << " materials:\n";
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Materials::const_iterator mi;
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for (mi = _materials.begin(); mi != _materials.end(); ++mi) {
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const Material *mat1 = (*mi).first;
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Material *mat2 = (*mi).second;
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out << " " << *mat1
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<< " (count = " << mat2->get_ref_count() << ")\n";
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}
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}
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/**
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* Initializes and/or returns the global pointer to the one MaterialPool
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* object in the system.
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*/
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MaterialPool *MaterialPool::
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get_global_ptr() {
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if (_global_ptr == nullptr) {
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_global_ptr = new MaterialPool;
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}
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return _global_ptr;
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}
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