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Add coloru16 converters

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This commit is contained in:
Nikita Lisitsa 2021-04-02 11:04:50 +03:00
parent b45f605209
commit bb1df4599d
1 changed files with 36 additions and 0 deletions
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36
libs/gfx/include/psemek/gfx/color.hpp
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@ -24,6 +24,24 @@ namespace psemek::gfx
return r; return r;
} }
template <std::size_t N>
auto to_colorf(geom::vector<std::uint16_t, N> const & c)
{
geom::vector<float, N> r;
for (std::size_t i = 0; i < N; ++i)
r[i] = c[i] / 65535.f;
return r;
}
template <std::size_t N>
auto to_coloru8(geom::vector<std::uint16_t, N> const & c)
{
geom::vector<std::uint8_t, N> r;
for (std::size_t i = 0; i < N; ++i)
r[i] = (static_cast<std::uint32_t>(c[i]) * 255) / 65535;
return r;
}
template <std::size_t N> template <std::size_t N>
auto to_coloru8(geom::vector<float, N> const & c) auto to_coloru8(geom::vector<float, N> const & c)
{ {
@ -33,6 +51,24 @@ namespace psemek::gfx
return r; return r;
} }
template <std::size_t N>
auto to_coloru16(geom::vector<std::uint8_t, N> const & c)
{
geom::vector<std::uint16_t, N> r;
for (std::size_t i = 0; i < N; ++i)
r[i] = (static_cast<std::uint32_t>(c[i]) * 65535) / 255;
return r;
}
template <std::size_t N>
auto to_coloru16(geom::vector<float, N> const & c)
{
geom::vector<std::uint16_t, N> r;
for (std::size_t i = 0; i < N; ++i)
r[i] = static_cast<std::uint16_t>(std::round(geom::clamp(c[i] * 65535.f, {0.f, 65535.f})));
return r;
}
template <std::size_t N> template <std::size_t N>
auto lerp(geom::vector<std::uint8_t, N> const & c0, geom::vector<std::uint8_t, N> const & c1, float t) auto lerp(geom::vector<std::uint8_t, N> const & c0, geom::vector<std::uint8_t, N> const & c1, float t)
{ {