rsx::comparison_function rsx::to_comparison_function(u16 in)
{
    switch (in)
    {
    case CELL_GCM_TEXTURE_ZFUNC_NEVER & CELL_GCM_SCULL_SFUNC_NEVER:
    case CELL_GCM_NEVER:
        return rsx::comparison_function::never;

    case CELL_GCM_TEXTURE_ZFUNC_LESS & CELL_GCM_SCULL_SFUNC_LESS:
    case CELL_GCM_LESS:
        return rsx::comparison_function::less;

    case CELL_GCM_TEXTURE_ZFUNC_EQUAL & CELL_GCM_SCULL_SFUNC_EQUAL:
    case CELL_GCM_EQUAL:
        return rsx::comparison_function::equal;

    case CELL_GCM_TEXTURE_ZFUNC_LEQUAL & CELL_GCM_SCULL_SFUNC_LEQUAL:
    case CELL_GCM_LEQUAL:
        return rsx::comparison_function::less_or_equal;

    case CELL_GCM_TEXTURE_ZFUNC_GREATER & CELL_GCM_SCULL_SFUNC_GREATER:
    case CELL_GCM_GREATER:
        return rsx::comparison_function::greater;

    case CELL_GCM_TEXTURE_ZFUNC_NOTEQUAL & CELL_GCM_SCULL_SFUNC_NOTEQUAL:
    case CELL_GCM_NOTEQUAL:
        return rsx::comparison_function::not_equal;

    case CELL_GCM_TEXTURE_ZFUNC_GEQUAL & CELL_GCM_SCULL_SFUNC_GEQUAL:
    case CELL_GCM_GEQUAL:
        return rsx::comparison_function::greater_or_equal;

    case CELL_GCM_TEXTURE_ZFUNC_ALWAYS & CELL_GCM_SCULL_SFUNC_ALWAYS:
    case CELL_GCM_ALWAYS:
        return rsx::comparison_function::always;
    }
    fmt::throw_exception("Unknown comparison function 0x%x" HERE, in);
}