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73 lines
2.7 KiB
C++
73 lines
2.7 KiB
C++
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/// @brief Include to sample cube map textures.
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/// @file gli/sampler_cube.hpp
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#pragma once
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#include "sampler.hpp"
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#include "texture_cube.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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/// Cube map 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 sampler_cube : 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 texture_cube 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 tvec2<interpolate_type, P> normalized_type;
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typedef tvec4<T, P> texel_type;
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sampler_cube(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 Face, size_type 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 Face, size_type 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, size_type Face, 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 BaseFace, size_type MaxFace, 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_2D, 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 sampler_cube<float> fsamplerCube;
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typedef sampler_cube<double> dsamplerCube;
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typedef sampler_cube<unsigned int> usamplerCube;
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typedef sampler_cube<int> isamplerCube;
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}//namespace gli
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#include "./core/sampler_cube.inl"
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