mirror of
https://github.com/Xaymar/obs-StreamFX
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70 lines
2.4 KiB
C++
70 lines
2.4 KiB
C++
/*
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* Modern effects for a modern Streamer
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* Copyright (C) 2020 Michael Fabian Dirks
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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 2 of the License, or
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* (at your option) 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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#pragma once
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#include "warning-disable.hpp"
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#include <cstddef>
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#include <type_traits>
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#include "warning-enable.hpp"
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template<typename Enum>
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struct enable_bitmask_operators {
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static const bool enable = false;
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};
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template<typename Enum>
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typename std::enable_if<enable_bitmask_operators<Enum>::enable, Enum>::type operator|(Enum lhs, Enum rhs)
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{
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using underlying = typename std::underlying_type<Enum>::type;
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return static_cast<Enum>(static_cast<underlying>(lhs) | static_cast<underlying>(rhs));
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}
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template<typename Enum>
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typename std::enable_if<enable_bitmask_operators<Enum>::enable, Enum>::type operator&(Enum lhs, Enum rhs)
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{
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using underlying = typename std::underlying_type<Enum>::type;
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return static_cast<Enum>(static_cast<underlying>(lhs) & static_cast<underlying>(rhs));
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}
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template<typename Enum>
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typename std::enable_if<enable_bitmask_operators<Enum>::enable, bool>::type any(Enum lhs)
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{
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using underlying = typename std::underlying_type<Enum>::type;
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return static_cast<underlying>(lhs) != static_cast<underlying>(0);
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}
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template<typename Enum>
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typename std::enable_if<enable_bitmask_operators<Enum>::enable, bool>::type exact(Enum lhs, Enum rhs)
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{
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using underlying = typename std::underlying_type<Enum>::type;
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return static_cast<underlying>(lhs) == static_cast<underlying>(rhs);
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}
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template<typename Enum>
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typename std::enable_if<enable_bitmask_operators<Enum>::enable, bool>::type has(Enum lhs, Enum rhs)
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{
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using underlying = typename std::underlying_type<Enum>::type;
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return (lhs & rhs) == rhs;
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}
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#define P_ENABLE_BITMASK_OPERATORS(x) \
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template<> \
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struct enable_bitmask_operators<x> { \
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static const bool enable = true; \
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};
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