mirror of
https://github.com/yuzu-emu/FasTC
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93 lines
3.4 KiB
C++
93 lines
3.4 KiB
C++
/* FasTC
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* Copyright (c) 2012 University of North Carolina at Chapel Hill. All rights reserved.
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*
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* Permission to use, copy, modify, and distribute this software and its documentation for educational,
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* research, and non-profit purposes, without fee, and without a written agreement is hereby granted,
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* provided that the above copyright notice, this paragraph, and the following four paragraphs appear
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* in all copies.
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*
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* Permission to incorporate this software into commercial products may be obtained by contacting the
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* authors or the Office of Technology Development at the University of North Carolina at Chapel Hill <otd@unc.edu>.
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*
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* This software program and documentation are copyrighted by the University of North Carolina at Chapel Hill.
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* The software program and documentation are supplied "as is," without any accompanying services from the
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* University of North Carolina at Chapel Hill or the authors. The University of North Carolina at Chapel Hill
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* and the authors do not warrant that the operation of the program will be uninterrupted or error-free. The
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* end-user understands that the program was developed for research purposes and is advised not to rely
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* exclusively on the program for any reason.
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*
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* IN NO EVENT SHALL THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL OR THE AUTHORS BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING OUT OF THE
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* USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL OR THE
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* AUTHORS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL AND THE AUTHORS SPECIFICALLY DISCLAIM ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND ANY
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* STATUTORY WARRANTY OF NON-INFRINGEMENT. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY
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* OF NORTH CAROLINA AT CHAPEL HILL AND THE AUTHORS HAVE NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
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* ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Please send all BUG REPORTS to <pavel@cs.unc.edu>.
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*
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* The authors may be contacted via:
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*
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* Pavel Krajcevski
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* Dept of Computer Science
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* 201 S Columbia St
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* Frederick P. Brooks, Jr. Computer Science Bldg
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* Chapel Hill, NC 27599-3175
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* USA
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*
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* <http://gamma.cs.unc.edu/FasTC/>
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*/
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#ifndef __REFERENCE_COUNTER_H__
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#define __REFERENCE_COUNTER_H__
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#include "TexCompTypes.h"
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class ReferenceCounter {
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public:
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ReferenceCounter() : m_ReferenceCount( new uint32 ) {
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*m_ReferenceCount = 1;
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}
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ReferenceCounter(const ReferenceCounter &other)
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: m_ReferenceCount(other.m_ReferenceCount) {
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IncRefCount();
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}
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ReferenceCounter &operator=(const ReferenceCounter &other) {
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DecRefCount();
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m_ReferenceCount = other.m_ReferenceCount;
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IncRefCount();
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return *this;
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}
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uint32 GetRefCount() const {
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if(m_ReferenceCount)
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return *m_ReferenceCount;
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else
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return 0;
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}
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void DecRefCount() {
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if(!m_ReferenceCount) return;
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(*m_ReferenceCount)--;
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if(*m_ReferenceCount == 0) {
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delete m_ReferenceCount;
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m_ReferenceCount = 0;
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}
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}
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void IncRefCount() {
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if(!m_ReferenceCount) return;
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(*m_ReferenceCount)++;
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}
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private:
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uint32 *m_ReferenceCount;
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};
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#endif // __REFERENCE_COUNTER_H__
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