123 lines
3.9 KiB
C++
123 lines
3.9 KiB
C++
// Filename: materialPool.cxx
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// Created by: drose (30Apr01)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://etc.cmu.edu/panda3d/docs/license/ .
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//
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// To contact the maintainers of this program write to
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// panda3d-general@lists.sourceforge.net .
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//
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////////////////////////////////////////////////////////////////////
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#include "materialPool.h"
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#include "config_gobj.h"
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#include "mutexHolder.h"
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MaterialPool *MaterialPool::_global_ptr = (MaterialPool *)NULL;
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////////////////////////////////////////////////////////////////////
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// Function: MaterialPool::write
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// Access: Published, Static
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// Description: Lists the contents of the material pool to the
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// indicated output stream.
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////////////////////////////////////////////////////////////////////
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void MaterialPool::
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write(ostream &out) {
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get_ptr()->ns_list_contents(out);
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}
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////////////////////////////////////////////////////////////////////
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// Function: MaterialPool::ns_get_material
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// Access: Public
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// Description: 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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MutexHolder 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
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// 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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// Function: MaterialPool::ns_garbage_collect
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// Access: Private
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// Description: 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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MutexHolder 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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// Function: MaterialPool::ns_list_contents
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// Access: Private
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// Description: The nonstatic implementation of list_contents().
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////////////////////////////////////////////////////////////////////
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void MaterialPool::
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ns_list_contents(ostream &out) const {
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MutexHolder 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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// Function: MaterialPool::get_ptr
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// Access: Private, Static
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// Description: Initializes and/or returns the global pointer to the
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// one MaterialPool object in the system.
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////////////////////////////////////////////////////////////////////
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MaterialPool *MaterialPool::
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get_ptr() {
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if (_global_ptr == (MaterialPool *)NULL) {
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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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