// THIS FILE IS AUTOGENERATED.
// Any changes to this file will be overwritten.
// For more information about how codegen works, see font-codegen/README.md
#[allow(unused_imports)]
use crate::codegen_prelude::*;
/// The OpenType [Table Directory](https://docs.microsoft.com/en-us/typography/opentype/spec/otff#table-directory)
#[derive(Debug, Clone, Copy)]
#[doc(hidden)]
pub struct TableDirectoryMarker {
table_records_byte_len: usize,
}
impl TableDirectoryMarker {
fn sfnt_version_byte_range(&self) -> Range<usize> {
let start = 0;
start..start + u32::RAW_BYTE_LEN
}
fn num_tables_byte_range(&self) -> Range<usize> {
let start = self.sfnt_version_byte_range().end;
start..start + u16::RAW_BYTE_LEN
}
fn search_range_byte_range(&self) -> Range<usize> {
let start = self.num_tables_byte_range().end;
start..start + u16::RAW_BYTE_LEN
}
fn entry_selector_byte_range(&self) -> Range<usize> {
let start = self.search_range_byte_range().end;
start..start + u16::RAW_BYTE_LEN
}
fn range_shift_byte_range(&self) -> Range<usize> {
let start = self.entry_selector_byte_range().end;
start..start + u16::RAW_BYTE_LEN
}
fn table_records_byte_range(&self) -> Range<usize> {
let start = self.range_shift_byte_range().end;
start..start + self.table_records_byte_len
}
}
impl<'a> FontRead<'a> for TableDirectory<'a> {
fn read(data: FontData<'a>) -> Result<Self, ReadError> {
let mut cursor = data.cursor();
cursor.advance::<u32>();
let num_tables: u16 = cursor.read()?;
cursor.advance::<u16>();
cursor.advance::<u16>();
cursor.advance::<u16>();
let table_records_byte_len = (num_tables as usize)
.checked_mul(TableRecord::RAW_BYTE_LEN)
.ok_or(ReadError::OutOfBounds)?;
cursor.advance_by(table_records_byte_len);
cursor.finish(TableDirectoryMarker {
table_records_byte_len,
})
}
}
/// The OpenType [Table Directory](https://docs.microsoft.com/en-us/typography/opentype/spec/otff#table-directory)
pub type TableDirectory<'a> = TableRef<'a, TableDirectoryMarker>;
impl<'a> TableDirectory<'a> {
/// 0x00010000 or 0x4F54544F
pub fn sfnt_version(&self) -> u32 {
let range = self.shape.sfnt_version_byte_range();
self.data.read_at(range.start).unwrap()
}
/// Number of tables.
pub fn num_tables(&self) -> u16 {
let range = self.shape.num_tables_byte_range();
self.data.read_at(range.start).unwrap()
}
pub fn search_range(&self) -> u16 {
let range = self.shape.search_range_byte_range();
self.data.read_at(range.start).unwrap()
}
pub fn entry_selector(&self) -> u16 {
let range = self.shape.entry_selector_byte_range();
self.data.read_at(range.start).unwrap()
}
pub fn range_shift(&self) -> u16 {
let range = self.shape.range_shift_byte_range();
self.data.read_at(range.start).unwrap()
}
/// Table records array—one for each top-level table in the font
pub fn table_records(&self) -> &'a [TableRecord] {
let range = self.shape.table_records_byte_range();
self.data.read_array(range).unwrap()
}
}
#[cfg(feature = "traversal")]
impl<'a> SomeTable<'a> for TableDirectory<'a> {
fn type_name(&self) -> &str {
"TableDirectory"
}
fn get_field(&self, idx: usize) -> Option<Field<'a>> {
match idx {
0usize => Some(Field::new("sfnt_version", self.sfnt_version())),
1usize => Some(Field::new("num_tables", self.num_tables())),
2usize => Some(Field::new("search_range", self.search_range())),
3usize => Some(Field::new("entry_selector", self.entry_selector())),
4usize => Some(Field::new("range_shift", self.range_shift())),
5usize => Some(Field::new(
"table_records",
traversal::FieldType::array_of_records(
stringify!(TableRecord),
self.table_records(),
self.offset_data(),
),
)),
_ => None,
}
}
}
#[cfg(feature = "traversal")]
impl<'a> std::fmt::Debug for TableDirectory<'a> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
(self as &dyn SomeTable<'a>).fmt(f)
}
}
/// Record for a table in a font.
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Copy, bytemuck :: AnyBitPattern)]
#[repr(C)]
#[repr(packed)]
pub struct TableRecord {
/// Table identifier.
pub tag: BigEndian<Tag>,
/// Checksum for the table.
pub checksum: BigEndian<u32>,
/// Offset from the beginning of the font data.
pub offset: BigEndian<u32>,
/// Length of the table.
pub length: BigEndian<u32>,
}
impl TableRecord {
/// Table identifier.
pub fn tag(&self) -> Tag {
self.tag.get()
}
/// Checksum for the table.
pub fn checksum(&self) -> u32 {
self.checksum.get()
}
/// Offset from the beginning of the font data.
pub fn offset(&self) -> u32 {
self.offset.get()
}
/// Length of the table.
pub fn length(&self) -> u32 {
self.length.get()
}
}
impl FixedSize for TableRecord {
const RAW_BYTE_LEN: usize =
Tag::RAW_BYTE_LEN + u32::RAW_BYTE_LEN + u32::RAW_BYTE_LEN + u32::RAW_BYTE_LEN;
}
#[cfg(feature = "traversal")]
impl<'a> SomeRecord<'a> for TableRecord {
fn traverse(self, data: FontData<'a>) -> RecordResolver<'a> {
RecordResolver {
name: "TableRecord",
get_field: Box::new(move |idx, _data| match idx {
0usize => Some(Field::new("tag", self.tag())),
1usize => Some(Field::new("checksum", self.checksum())),
2usize => Some(Field::new("offset", self.offset())),
3usize => Some(Field::new("length", self.length())),
_ => None,
}),
data,
}
}
}
/// [TTC Header](https://learn.microsoft.com/en-us/typography/opentype/spec/otff#ttc-header)
#[derive(Debug, Clone, Copy)]
#[doc(hidden)]
pub struct TTCHeaderMarker {
table_directory_offsets_byte_len: usize,
dsig_tag_byte_start: Option<usize>,
dsig_length_byte_start: Option<usize>,
dsig_offset_byte_start: Option<usize>,
}
impl TTCHeaderMarker {
fn ttc_tag_byte_range(&self) -> Range<usize> {
let start = 0;
start..start + Tag::RAW_BYTE_LEN
}
fn version_byte_range(&self) -> Range<usize> {
let start = self.ttc_tag_byte_range().end;
start..start + MajorMinor::RAW_BYTE_LEN
}
fn num_fonts_byte_range(&self) -> Range<usize> {
let start = self.version_byte_range().end;
start..start + u32::RAW_BYTE_LEN
}
fn table_directory_offsets_byte_range(&self) -> Range<usize> {
let start = self.num_fonts_byte_range().end;
start..start + self.table_directory_offsets_byte_len
}
fn dsig_tag_byte_range(&self) -> Option<Range<usize>> {
let start = self.dsig_tag_byte_start?;
Some(start..start + u32::RAW_BYTE_LEN)
}
fn dsig_length_byte_range(&self) -> Option<Range<usize>> {
let start = self.dsig_length_byte_start?;
Some(start..start + u32::RAW_BYTE_LEN)
}
fn dsig_offset_byte_range(&self) -> Option<Range<usize>> {
let start = self.dsig_offset_byte_start?;
Some(start..start + u32::RAW_BYTE_LEN)
}
}
impl<'a> FontRead<'a> for TTCHeader<'a> {
fn read(data: FontData<'a>) -> Result<Self, ReadError> {
let mut cursor = data.cursor();
cursor.advance::<Tag>();
let version: MajorMinor = cursor.read()?;
let num_fonts: u32 = cursor.read()?;
let table_directory_offsets_byte_len = (num_fonts as usize)
.checked_mul(u32::RAW_BYTE_LEN)
.ok_or(ReadError::OutOfBounds)?;
cursor.advance_by(table_directory_offsets_byte_len);
let dsig_tag_byte_start = version
.compatible((2u16, 0u16))
.then(|| cursor.position())
.transpose()?;
version
.compatible((2u16, 0u16))
.then(|| cursor.advance::<u32>());
let dsig_length_byte_start = version
.compatible((2u16, 0u16))
.then(|| cursor.position())
.transpose()?;
version
.compatible((2u16, 0u16))
.then(|| cursor.advance::<u32>());
let dsig_offset_byte_start = version
.compatible((2u16, 0u16))
.then(|| cursor.position())
.transpose()?;
version
.compatible((2u16, 0u16))
.then(|| cursor.advance::<u32>());
cursor.finish(TTCHeaderMarker {
table_directory_offsets_byte_len,
dsig_tag_byte_start,
dsig_length_byte_start,
dsig_offset_byte_start,
})
}
}
/// [TTC Header](https://learn.microsoft.com/en-us/typography/opentype/spec/otff#ttc-header)
pub type TTCHeader<'a> = TableRef<'a, TTCHeaderMarker>;
impl<'a> TTCHeader<'a> {
/// Font Collection ID string: \"ttcf\"
pub fn ttc_tag(&self) -> Tag {
let range = self.shape.ttc_tag_byte_range();
self.data.read_at(range.start).unwrap()
}
/// Major/minor version of the TTC Header
pub fn version(&self) -> MajorMinor {
let range = self.shape.version_byte_range();
self.data.read_at(range.start).unwrap()
}
/// Number of fonts in TTC
pub fn num_fonts(&self) -> u32 {
let range = self.shape.num_fonts_byte_range();
self.data.read_at(range.start).unwrap()
}
/// Array of offsets to the TableDirectory for each font from the beginning of the file
pub fn table_directory_offsets(&self) -> &'a [BigEndian<u32>] {
let range = self.shape.table_directory_offsets_byte_range();
self.data.read_array(range).unwrap()
}
/// Tag indicating that a DSIG table exists, 0x44534947 ('DSIG') (null if no signature)
pub fn dsig_tag(&self) -> Option<u32> {
let range = self.shape.dsig_tag_byte_range()?;
Some(self.data.read_at(range.start).unwrap())
}
/// The length (in bytes) of the DSIG table (null if no signature)
pub fn dsig_length(&self) -> Option<u32> {
let range = self.shape.dsig_length_byte_range()?;
Some(self.data.read_at(range.start).unwrap())
}
/// The offset (in bytes) of the DSIG table from the beginning of the TTC file (null if no signature)
pub fn dsig_offset(&self) -> Option<u32> {
let range = self.shape.dsig_offset_byte_range()?;
Some(self.data.read_at(range.start).unwrap())
}
}
#[cfg(feature = "traversal")]
impl<'a> SomeTable<'a> for TTCHeader<'a> {
fn type_name(&self) -> &str {
"TTCHeader"
}
fn get_field(&self, idx: usize) -> Option<Field<'a>> {
let version = self.version();
match idx {
0usize => Some(Field::new("ttc_tag", self.ttc_tag())),
1usize => Some(Field::new("version", self.version())),
2usize => Some(Field::new("num_fonts", self.num_fonts())),
3usize => Some(Field::new(
"table_directory_offsets",
self.table_directory_offsets(),
)),
4usize if version.compatible((2u16, 0u16)) => {
Some(Field::new("dsig_tag", self.dsig_tag().unwrap()))
}
5usize if version.compatible((2u16, 0u16)) => {
Some(Field::new("dsig_length", self.dsig_length().unwrap()))
}
6usize if version.compatible((2u16, 0u16)) => {
Some(Field::new("dsig_offset", self.dsig_offset().unwrap()))
}
_ => None,
}
}
}
#[cfg(feature = "traversal")]
impl<'a> std::fmt::Debug for TTCHeader<'a> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
(self as &dyn SomeTable<'a>).fmt(f)
}
}
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