65 lines
2.5 KiB
C++
65 lines
2.5 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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/// OpenGL Image (gli.g-truc.net)
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///
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/// Copyright (c) 2008 - 2014 G-Truc Creation (www.g-truc.net)
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/// Permission is hereby granted, free of charge, to any person obtaining a copy
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/// of this software and associated documentation files (the "Software"), to deal
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/// in the Software without restriction, including without limitation the rights
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/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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/// copies of the Software, and to permit persons to whom the Software is
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/// furnished to do so, subject to the following conditions:
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///
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/// The above copyright notice and this permission notice shall be included in
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/// all copies or substantial portions of the Software.
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///
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/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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/// THE SOFTWARE.
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///
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/// @ref core
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/// @file gli/levels.hpp
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/// @date 2014-12-12 / 2014-12-12
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/// @author Christophe Riccio
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///
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/// @defgroup core_image Image
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/// @ingroup core
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///////////////////////////////////////////////////////////////////////////////////
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#pragma once
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#include "type.hpp"
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namespace gli
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{
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/// Compute the number of mipmaps levels necessary to create a mipmap complete texture
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///
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/// @param Dimensions Dimensions of the texture base level mipmap
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/// @tparam dimType Vector type used to express the dimentions of a texture of any kind.
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/// @code
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/// #include <gli/gli.hpp>
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/// #include <gli/levels.hpp>
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/// ...
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/// gli::size2_t Dimensions(32, 10);
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/// gli::texture2D Texture(gli::levels(Dimensions));
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/// @endcode
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template <template <typename, glm::precision> class dimType>
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size_t levels(dimType<size_t, glm::defaultp> const & Dimensions);
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/// Compute the number of mipmaps levels necessary to create a mipmap complete texture
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///
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/// @param Dimensions Dimensions of the texture base level mipmap
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/// @tparam dimType Vector type used to express the dimentions of a texture of any kind.
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/// @code
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/// #include <gli/gli.hpp>
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/// #include <gli/levels.hpp>
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/// ...
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/// gli::texture2D Texture(32);
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/// @endcode
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size_t levels(size_t Dimension);
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}//namespace gli
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#include "./core/levels.inl"
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