//! A [Maximum Profile Table](

//! https://docs.microsoft.com/en-us/typography/opentype/spec/maxp) implementation.

use core::num::NonZeroU16;

use crate::parser::Stream;

/// A [Maximum Profile Table](https://docs.microsoft.com/en-us/typography/opentype/spec/maxp).

#[derive(Clone, Copy, Debug)]

pub struct Table {

    /// The total number of glyphs in the face.

    pub number_of_glyphs: NonZeroU16,

}

impl Table {

    /// Parses a table from raw data.

    pub fn parse(data: &[u8]) -> Option<Self> {

        let mut s = Stream::new(data);

        let version = s.read::<u32>()?;

        if !(version == 0x00005000 || version == 0x00010000) {

            return None;

        }

        let n = s.read::<u16>()?;

        let number_of_glyphs = NonZeroU16::new(n)?;

        Some(Table { number_of_glyphs })

    }

}