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50 lines
994 B
C++
50 lines
994 B
C++
/// @brief Include to use wrap modes and the sampler base class.
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/// @file gli/sampler.hpp
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#pragma once
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#include "core/filter.hpp"
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namespace gli
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{
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/// Texture coordinate wrapping mode
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enum wrap
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{
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WRAP_CLAMP_TO_EDGE, WRAP_FIRST = WRAP_CLAMP_TO_EDGE,
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WRAP_CLAMP_TO_BORDER,
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WRAP_REPEAT,
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WRAP_MIRROR_REPEAT,
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WRAP_MIRROR_CLAMP_TO_EDGE,
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WRAP_MIRROR_CLAMP_TO_BORDER, WRAP_LAST = WRAP_MIRROR_CLAMP_TO_BORDER
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};
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enum
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{
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WRAP_COUNT = WRAP_LAST - WRAP_FIRST + 1
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};
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/// Evaluate whether the texture coordinate wrapping mode relies on border color
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inline bool is_border(wrap Wrap)
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{
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return Wrap == WRAP_CLAMP_TO_BORDER || Wrap == WRAP_MIRROR_CLAMP_TO_BORDER;
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}
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/// Genetic sampler class.
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class sampler
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{
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public:
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sampler(wrap Wrap, filter Mip, filter Min);
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protected:
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typedef float(*wrap_type)(float const & SamplerCoord);
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wrap_type get_func(wrap WrapMode) const;
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wrap_type Wrap;
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filter Mip;
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filter Min;
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};
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}//namespace gli
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#include "./core/sampler.inl"
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