color32.h

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#pragma once
 
#include <liboscar/graphics/rgba.h>
#include <liboscar/graphics/unorm8.h>
 
#include <bit>
#include <concepts>
#include <cstdint>
 
namespace osc
{
    using Color32 = Rgba<Unorm8>;
 
    template<std::integral T>
    constexpr T to_integer(const Color32& color32)
    {
        return std::bit_cast<T>(color32);
    }
}
 
// specialized hashing function for `Color32`
template<>
struct std::hash<osc::Color32> final {
    size_t operator()(const osc::Color32& color32) const noexcept
    {
        return std::hash<uint32_t>{}(std::bit_cast<uint32_t>(color32));
    }
};