/*
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* Copyright (C) 2023 Christopher J. Howard
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*
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* This file is part of Antkeeper source code.
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*
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* Antkeeper source code 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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* (at your option) any later version.
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*
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* Antkeeper source code 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 Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef ANTKEEPER_GL_STENCIL_OP_HPP
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#define ANTKEEPER_GL_STENCIL_OP_HPP
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#include <cstdint>
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namespace gl {
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/// Stencil comparison functions.
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enum class stencil_op: std::uint8_t
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{
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/// Keeps the current value.
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keep,
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/// Sets the value to `0`.
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zero,
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/// Sets the value to `reference`.
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replace,
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/// Increments the current value and clamps to the maximum representable unsigned value.
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increment_and_clamp,
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/// Decrements the current value and clamps to `0`.
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decrement_and_clamp,
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/// Bitwise-inverts the current value.
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invert,
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/// Increments the current value and wraps to `0` when the maximum value would have been exceeded.
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increment_and_wrap,
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/// Decrements the current value and wraps to the maximum possible value when the value would go below `0`.
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decrement_and_wrap
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};
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} // namespace gl
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#endif // ANTKEEPER_GL_STENCIL_OP_HPP
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