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https://github.com/ZDoom/gzdoom-gles.git
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110 lines
2.3 KiB
C++
110 lines
2.3 KiB
C++
/*
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* libADLMIDI is a free Software MIDI synthesizer library with OPL3 emulation
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*
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* Original ADLMIDI code: Copyright (c) 2010-2014 Joel Yliluoma <bisqwit@iki.fi>
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* ADLMIDI Library API: Copyright (c) 2015-2020 Vitaly Novichkov <admin@wohlnet.ru>
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*
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* Library is based on the ADLMIDI, a MIDI player for Linux and Windows with OPL3 emulation:
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* http://iki.fi/bisqwit/source/adlmidi.html
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MY_PTR_HPP_THING
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#define MY_PTR_HPP_THING
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#include <stddef.h>
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#include <stdlib.h>
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/*
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Generic deleters for smart pointers
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*/
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template <class T>
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struct My_DefaultDelete
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{
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void operator()(T *x) { delete x; }
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};
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template <class T>
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struct My_DefaultArrayDelete
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{
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void operator()(T *x) { delete[] x; }
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};
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struct My_CDelete
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{
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void operator()(void *x) { free(x); }
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};
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/*
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Safe unique pointer for C++98, non-copyable but swappable.
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*/
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template< class T, class Deleter = My_DefaultDelete<T> >
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class My_UPtr
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{
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T *m_p;
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public:
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explicit My_UPtr(T *p = NULL)
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: m_p(p) {}
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~My_UPtr()
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{
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reset();
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}
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void reset(T *p = NULL)
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{
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if(p != m_p)
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{
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if(m_p)
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{
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Deleter del;
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del(m_p);
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}
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m_p = p;
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}
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}
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T *get() const
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{
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return m_p;
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}
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T *release()
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{
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T *ret = m_p;
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m_p = NULL;
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return ret;
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}
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T &operator*() const
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{
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return *m_p;
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}
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T *operator->() const
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{
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return m_p;
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}
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T &operator[](size_t index) const
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{
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return m_p[index];
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}
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private:
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My_UPtr(const My_UPtr &);
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My_UPtr &operator=(const My_UPtr &);
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};
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#endif // MY_PTR_HPP_THING
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