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71 lines
2.6 KiB
71 lines
2.6 KiB
/// @brief Include to sample 3d textures. |
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/// @file gli/sampler3d.hpp |
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#pragma once |
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#include "sampler.hpp" |
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#include "texture3d.hpp" |
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#include "core/mipmaps_compute.hpp" |
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#include "core/convert_func.hpp" |
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namespace gli |
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{ |
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/// 3d texture sampler |
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/// @tparam T Sampler can fetch, write and interpret any texture format but will expose and process the data through type T conversions. |
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/// @tparam P Precision in term of ULPs |
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template <typename T, precision P = defaultp> |
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class sampler3d : public sampler |
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{ |
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private: |
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typedef typename detail::interpolate<T>::type interpolate_type; |
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public: |
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typedef texture3d texture_type; |
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typedef typename texture_type::size_type size_type; |
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typedef typename texture_type::extent_type extent_type; |
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typedef interpolate_type level_type; |
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typedef vec<3, interpolate_type, P> normalized_type; |
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typedef vec<4, T, P> texel_type; |
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sampler3d(texture_type const& Texture, wrap Wrap, filter Mip = FILTER_NEAREST, filter Min = FILTER_NEAREST, texel_type const& BorderColor = texel_type(0, 0, 0, 1)); |
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/// Access the sampler texture object |
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texture_type const& operator()() const; |
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/// Fetch a texel from the sampler texture |
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texel_type texel_fetch(extent_type const& TexelCoord, size_type const& Level) const; |
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/// Write a texel in the sampler texture |
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void texel_write(extent_type const& TexelCoord, size_type const & Level, texel_type const& Texel); |
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/// Clear the sampler texture with a uniform texel |
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void clear(texel_type const& Texel); |
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/// Sample the sampler texture at a specific level |
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texel_type texture_lod(normalized_type const& SampleCoord, level_type Level) const; |
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/// Generate all the mipmaps of the sampler texture from the texture base level |
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void generate_mipmaps(filter Minification); |
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/// Generate the mipmaps of the sampler texture from the texture base level to the texture max level included |
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void generate_mipmaps(size_type BaseLevel, size_type MaxLevel, filter Minification); |
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private: |
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typedef typename detail::convert<texture_type, T, P>::func convert_type; |
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typedef typename detail::convert<texture_type, T, P>::fetchFunc fetch_type; |
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typedef typename detail::convert<texture_type, T, P>::writeFunc write_type; |
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typedef typename detail::filterBase<detail::DIMENSION_3D, texture_type, interpolate_type, normalized_type, fetch_type, texel_type>::filterFunc filter_type; |
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texture_type Texture; |
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convert_type Convert; |
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texel_type BorderColor; |
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filter_type Filter; |
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}; |
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typedef sampler3d<float> fsampler3D; |
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typedef sampler3d<double> dsampler3D; |
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typedef sampler3d<unsigned int> usampler3D; |
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typedef sampler3d<int> isampler3D; |
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}//namespace gli |
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#include "./core/sampler3d.inl"
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