Function parse_header

splashsurf_lib/src/io/bgeo_format.rs:487–524

Parses the full BGEO file header

(input: &[u8])

    /// Parses the full BGEO file header
    fn parse_header(input: &[u8]) -> IResult<&[u8], BgeoHeader, BgeoParserError<&[u8]>> {
        let (input, magic_bytes) = parse_header_magic(input)?;
        let (input, (version_char, version)) = parse_version(input)?;

        let (input, num_points) = number::be_i32(input)?;
        let (input, num_prims) = number::be_i32(input)?;

        let (input, num_point_groups) = number::be_i32(input)?;
        let (input, num_prim_groups) = number::be_i32(input)?;

        let (input, num_point_attrib) = number::be_i32(input)?;
        let (input, num_vertex_attrib) = number::be_i32(input)?;
        let (input, num_prim_attrib) = number::be_i32(input)?;
        let (input, num_attrib) = number::be_i32(input)?;

        let header = BgeoHeader {
            magic_bytes: [
                magic_bytes[0],
                magic_bytes[1],
                magic_bytes[2],
                magic_bytes[3],
            ],
            version_char,
            version,
            num_points,
            num_prims,
            num_point_groups,
            num_prim_groups,
            num_point_attrib,
            num_vertex_attrib,
            num_prim_attrib,
            num_attrib,
        };

        // TODO: Validate header, e.g. values >= 0

        Ok((input, header))
    }

    /// Parses a single BGEO attribute definition
    fn parse_attr_def(input: &[u8]) -> IResult<&[u8], AttribDefinition, BgeoParserError<&[u8]>> {