61 lines
1.3 KiB
C++
61 lines
1.3 KiB
C++
/**
|
|
* 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 bufferContext.cxx
|
|
* @author drose
|
|
* @date 2006-03-16
|
|
*/
|
|
|
|
#include "bufferContext.h"
|
|
|
|
TypeHandle BufferContext::_type_handle;
|
|
|
|
/**
|
|
*
|
|
*/
|
|
BufferContext::
|
|
BufferContext(BufferResidencyTracker *residency, TypedWritableReferenceCount *object) :
|
|
_object(object),
|
|
_residency(residency),
|
|
_residency_state(0),
|
|
_data_size_bytes(0),
|
|
_owning_chain(nullptr)
|
|
{
|
|
set_owning_chain(&residency->_chains[0]);
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
BufferContext::
|
|
~BufferContext() {
|
|
set_owning_chain(nullptr);
|
|
}
|
|
|
|
/**
|
|
* Moves this object to a different BufferContextChain.
|
|
*/
|
|
void BufferContext::
|
|
set_owning_chain(BufferContextChain *chain) {
|
|
if (chain != _owning_chain) {
|
|
if (_owning_chain != nullptr){
|
|
--(_owning_chain->_count);
|
|
_owning_chain->adjust_bytes(-(int)_data_size_bytes);
|
|
remove_from_list();
|
|
}
|
|
|
|
_owning_chain = chain;
|
|
|
|
if (_owning_chain != nullptr) {
|
|
++(_owning_chain->_count);
|
|
_owning_chain->adjust_bytes((int)_data_size_bytes);
|
|
insert_before(_owning_chain);
|
|
}
|
|
}
|
|
}
|