shader.cpp

/*
** ETIB PROJECT, 2026
** xider
** File description:
** shader
*/
 
#include <cstring>
#include <stdexcept>
#include <string>
 
#include <utility/graphic/shader.hpp>
 
namespace utility::graphic
{
    namespace
    {
        void validateSpirv(const std::string &data, const char *which)
        {
            if (data.size() % sizeof(uint32_t) != 0) {
                throw std::invalid_argument(
                    std::string(which)
                    + " shader bytecode length is not a multiple of 4");
            }
        }
    }    // namespace
 
    Shader::Shader(const std::string &vertString, const std::string &fragString)
    {
        validateSpirv(vertString, "Vertex");
        validateSpirv(fragString, "Fragment");
 
        _vertSPIRV =
            std::vector<uint32_t>(vertString.size() / sizeof(uint32_t));
        std::memcpy(_vertSPIRV.data(), vertString.data(), vertString.size());
 
        _fragSPIRV =
            std::vector<uint32_t>(fragString.size() / sizeof(uint32_t));
        std::memcpy(_fragSPIRV.data(), fragString.data(), fragString.size());
    }
 
    // Getters //
 
    const std::vector<uint32_t> &Shader::getVertexCode() const
    {
        return _vertSPIRV;
    }
 
    const std::vector<uint32_t> &Shader::getFragmentCode() const
    {
        return _fragSPIRV;
    }
}    // namespace utility::graphic