// 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 ['gvar' header](https://learn.microsoft.com/en-us/typography/opentype/spec/gvar#gvar-header)
#[derive(Debug, Clone, Copy)]
#[doc(hidden)]
pub struct GvarMarker {
glyph_variation_data_offsets_byte_len: usize,
}
impl GvarMarker {
fn version_byte_range(&self) -> Range<usize> {
let start = 0;
start..start + MajorMinor::RAW_BYTE_LEN
}
fn axis_count_byte_range(&self) -> Range<usize> {
let start = self.version_byte_range().end;
start..start + u16::RAW_BYTE_LEN
}
fn shared_tuple_count_byte_range(&self) -> Range<usize> {
let start = self.axis_count_byte_range().end;
start..start + u16::RAW_BYTE_LEN
}
fn shared_tuples_offset_byte_range(&self) -> Range<usize> {
let start = self.shared_tuple_count_byte_range().end;
start..start + Offset32::RAW_BYTE_LEN
}
fn glyph_count_byte_range(&self) -> Range<usize> {
let start = self.shared_tuples_offset_byte_range().end;
start..start + u16::RAW_BYTE_LEN
}
fn flags_byte_range(&self) -> Range<usize> {
let start = self.glyph_count_byte_range().end;
start..start + GvarFlags::RAW_BYTE_LEN
}
fn glyph_variation_data_array_offset_byte_range(&self) -> Range<usize> {
let start = self.flags_byte_range().end;
start..start + u32::RAW_BYTE_LEN
}
fn glyph_variation_data_offsets_byte_range(&self) -> Range<usize> {
let start = self.glyph_variation_data_array_offset_byte_range().end;
start..start + self.glyph_variation_data_offsets_byte_len
}
}
impl TopLevelTable for Gvar<'_> {
/// `gvar`
const TAG: Tag = Tag::new(b"gvar");
}
impl<'a> FontRead<'a> for Gvar<'a> {
fn read(data: FontData<'a>) -> Result<Self, ReadError> {
let mut cursor = data.cursor();
cursor.advance::<MajorMinor>();
cursor.advance::<u16>();
cursor.advance::<u16>();
cursor.advance::<Offset32>();
let glyph_count: u16 = cursor.read()?;
let flags: GvarFlags = cursor.read()?;
cursor.advance::<u32>();
let glyph_variation_data_offsets_byte_len = (transforms::add(glyph_count, 1_usize))
.checked_mul(<U16Or32 as ComputeSize>::compute_size(&flags)?)
.ok_or(ReadError::OutOfBounds)?;
cursor.advance_by(glyph_variation_data_offsets_byte_len);
cursor.finish(GvarMarker {
glyph_variation_data_offsets_byte_len,
})
}
}
/// The ['gvar' header](https://learn.microsoft.com/en-us/typography/opentype/spec/gvar#gvar-header)
pub type Gvar<'a> = TableRef<'a, GvarMarker>;
impl<'a> Gvar<'a> {
/// Major/minor version number of the glyph variations table — set to (1,0).
pub fn version(&self) -> MajorMinor {
let range = self.shape.version_byte_range();
self.data.read_at(range.start).unwrap()
}
/// The number of variation axes for this font. This must be the
/// same number as axisCount in the 'fvar' table.
pub fn axis_count(&self) -> u16 {
let range = self.shape.axis_count_byte_range();
self.data.read_at(range.start).unwrap()
}
/// The number of shared tuple records. Shared tuple records can be
/// referenced within glyph variation data tables for multiple
/// glyphs, as opposed to other tuple records stored directly
/// within a glyph variation data table.
pub fn shared_tuple_count(&self) -> u16 {
let range = self.shape.shared_tuple_count_byte_range();
self.data.read_at(range.start).unwrap()
}
/// Offset from the start of this table to the shared tuple records.
pub fn shared_tuples_offset(&self) -> Offset32 {
let range = self.shape.shared_tuples_offset_byte_range();
self.data.read_at(range.start).unwrap()
}
/// Attempt to resolve [`shared_tuples_offset`][Self::shared_tuples_offset].
pub fn shared_tuples(&self) -> Result<SharedTuples<'a>, ReadError> {
let data = self.data;
let args = (self.shared_tuple_count(), self.axis_count());
self.shared_tuples_offset().resolve_with_args(data, &args)
}
/// The number of glyphs in this font. This must match the number
/// of glyphs stored elsewhere in the font.
pub fn glyph_count(&self) -> u16 {
let range = self.shape.glyph_count_byte_range();
self.data.read_at(range.start).unwrap()
}
/// Bit-field that gives the format of the offset array that
/// follows. If bit 0 is clear, the offsets are uint16; if bit 0 is
/// set, the offsets are uint32.
pub fn flags(&self) -> GvarFlags {
let range = self.shape.flags_byte_range();
self.data.read_at(range.start).unwrap()
}
/// Offset from the start of this table to the array of
/// GlyphVariationData tables.
pub fn glyph_variation_data_array_offset(&self) -> u32 {
let range = self.shape.glyph_variation_data_array_offset_byte_range();
self.data.read_at(range.start).unwrap()
}
/// Offsets from the start of the GlyphVariationData array to each
/// GlyphVariationData table.
pub fn glyph_variation_data_offsets(&self) -> ComputedArray<'a, U16Or32> {
let range = self.shape.glyph_variation_data_offsets_byte_range();
self.data.read_with_args(range, &self.flags()).unwrap()
}
}
#[cfg(feature = "traversal")]
impl<'a> SomeTable<'a> for Gvar<'a> {
fn type_name(&self) -> &str {
"Gvar"
}
fn get_field(&self, idx: usize) -> Option<Field<'a>> {
match idx {
0usize => Some(Field::new("version", self.version())),
1usize => Some(Field::new("axis_count", self.axis_count())),
2usize => Some(Field::new("shared_tuple_count", self.shared_tuple_count())),
3usize => Some(Field::new(
"shared_tuples_offset",
FieldType::offset(self.shared_tuples_offset(), self.shared_tuples()),
)),
4usize => Some(Field::new("glyph_count", self.glyph_count())),
5usize => Some(Field::new("flags", self.flags())),
6usize => Some(Field::new(
"glyph_variation_data_array_offset",
self.glyph_variation_data_array_offset(),
)),
7usize => Some(Field::new(
"glyph_variation_data_offsets",
traversal::FieldType::Unknown,
)),
_ => None,
}
}
}
#[cfg(feature = "traversal")]
impl<'a> std::fmt::Debug for Gvar<'a> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
(self as &dyn SomeTable<'a>).fmt(f)
}
}
#[derive(Clone, Copy, Default, PartialEq, Eq, PartialOrd, Ord, Hash, bytemuck :: AnyBitPattern)]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
#[repr(transparent)]
pub struct GvarFlags {
bits: u16,
}
impl GvarFlags {
/// If set, offsets to GlyphVariationData are 32 bits
pub const LONG_OFFSETS: Self = Self { bits: 1 };
}
impl GvarFlags {
/// Returns an empty set of flags.
#[inline]
pub const fn empty() -> Self {
Self { bits: 0 }
}
/// Returns the set containing all flags.
#[inline]
pub const fn all() -> Self {
Self {
bits: Self::LONG_OFFSETS.bits,
}
}
/// Returns the raw value of the flags currently stored.
#[inline]
pub const fn bits(&self) -> u16 {
self.bits
}
/// Convert from underlying bit representation, unless that
/// representation contains bits that do not correspond to a flag.
#[inline]
pub const fn from_bits(bits: u16) -> Option<Self> {
if (bits & !Self::all().bits()) == 0 {
Some(Self { bits })
} else {
None
}
}
/// Convert from underlying bit representation, dropping any bits
/// that do not correspond to flags.
#[inline]
pub const fn from_bits_truncate(bits: u16) -> Self {
Self {
bits: bits & Self::all().bits,
}
}
/// Returns `true` if no flags are currently stored.
#[inline]
pub const fn is_empty(&self) -> bool {
self.bits() == Self::empty().bits()
}
/// Returns `true` if there are flags common to both `self` and `other`.
#[inline]
pub const fn intersects(&self, other: Self) -> bool {
!(Self {
bits: self.bits & other.bits,
})
.is_empty()
}
/// Returns `true` if all of the flags in `other` are contained within `self`.
#[inline]
pub const fn contains(&self, other: Self) -> bool {
(self.bits & other.bits) == other.bits
}
/// Inserts the specified flags in-place.
#[inline]
pub fn insert(&mut self, other: Self) {
self.bits |= other.bits;
}
/// Removes the specified flags in-place.
#[inline]
pub fn remove(&mut self, other: Self) {
self.bits &= !other.bits;
}
/// Toggles the specified flags in-place.
#[inline]
pub fn toggle(&mut self, other: Self) {
self.bits ^= other.bits;
}
/// Returns the intersection between the flags in `self` and
/// `other`.
///
/// Specifically, the returned set contains only the flags which are
/// present in *both* `self` *and* `other`.
///
/// This is equivalent to using the `&` operator (e.g.
/// [`ops::BitAnd`]), as in `flags & other`.
///
/// [`ops::BitAnd`]: https://doc.rust-lang.org/std/ops/trait.BitAnd.html
#[inline]
#[must_use]
pub const fn intersection(self, other: Self) -> Self {
Self {
bits: self.bits & other.bits,
}
}
/// Returns the union of between the flags in `self` and `other`.
///
/// Specifically, the returned set contains all flags which are
/// present in *either* `self` *or* `other`, including any which are
/// present in both.
///
/// This is equivalent to using the `|` operator (e.g.
/// [`ops::BitOr`]), as in `flags | other`.
///
/// [`ops::BitOr`]: https://doc.rust-lang.org/std/ops/trait.BitOr.html
#[inline]
#[must_use]
pub const fn union(self, other: Self) -> Self {
Self {
bits: self.bits | other.bits,
}
}
/// Returns the difference between the flags in `self` and `other`.
///
/// Specifically, the returned set contains all flags present in
/// `self`, except for the ones present in `other`.
///
/// It is also conceptually equivalent to the "bit-clear" operation:
/// `flags & !other` (and this syntax is also supported).
///
/// This is equivalent to using the `-` operator (e.g.
/// [`ops::Sub`]), as in `flags - other`.
///
/// [`ops::Sub`]: https://doc.rust-lang.org/std/ops/trait.Sub.html
#[inline]
#[must_use]
pub const fn difference(self, other: Self) -> Self {
Self {
bits: self.bits & !other.bits,
}
}
}
impl std::ops::BitOr for GvarFlags {
type Output = Self;
/// Returns the union of the two sets of flags.
#[inline]
fn bitor(self, other: GvarFlags) -> Self {
Self {
bits: self.bits | other.bits,
}
}
}
impl std::ops::BitOrAssign for GvarFlags {
/// Adds the set of flags.
#[inline]
fn bitor_assign(&mut self, other: Self) {
self.bits |= other.bits;
}
}
impl std::ops::BitXor for GvarFlags {
type Output = Self;
/// Returns the left flags, but with all the right flags toggled.
#[inline]
fn bitxor(self, other: Self) -> Self {
Self {
bits: self.bits ^ other.bits,
}
}
}
impl std::ops::BitXorAssign for GvarFlags {
/// Toggles the set of flags.
#[inline]
fn bitxor_assign(&mut self, other: Self) {
self.bits ^= other.bits;
}
}
impl std::ops::BitAnd for GvarFlags {
type Output = Self;
/// Returns the intersection between the two sets of flags.
#[inline]
fn bitand(self, other: Self) -> Self {
Self {
bits: self.bits & other.bits,
}
}
}
impl std::ops::BitAndAssign for GvarFlags {
/// Disables all flags disabled in the set.
#[inline]
fn bitand_assign(&mut self, other: Self) {
self.bits &= other.bits;
}
}
impl std::ops::Sub for GvarFlags {
type Output = Self;
/// Returns the set difference of the two sets of flags.
#[inline]
fn sub(self, other: Self) -> Self {
Self {
bits: self.bits & !other.bits,
}
}
}
impl std::ops::SubAssign for GvarFlags {
/// Disables all flags enabled in the set.
#[inline]
fn sub_assign(&mut self, other: Self) {
self.bits &= !other.bits;
}
}
impl std::ops::Not for GvarFlags {
type Output = Self;
/// Returns the complement of this set of flags.
#[inline]
fn not(self) -> Self {
Self { bits: !self.bits } & Self::all()
}
}
impl std::fmt::Debug for GvarFlags {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
let members: &[(&str, Self)] = &[("LONG_OFFSETS", Self::LONG_OFFSETS)];
let mut first = true;
for (name, value) in members {
if self.contains(*value) {
if !first {
f.write_str(" | ")?;
}
first = false;
f.write_str(name)?;
}
}
if first {
f.write_str("(empty)")?;
}
Ok(())
}
}
impl std::fmt::Binary for GvarFlags {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
std::fmt::Binary::fmt(&self.bits, f)
}
}
impl std::fmt::Octal for GvarFlags {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
std::fmt::Octal::fmt(&self.bits, f)
}
}
impl std::fmt::LowerHex for GvarFlags {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
std::fmt::LowerHex::fmt(&self.bits, f)
}
}
impl std::fmt::UpperHex for GvarFlags {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
std::fmt::UpperHex::fmt(&self.bits, f)
}
}
impl font_types::Scalar for GvarFlags {
type Raw = <u16 as font_types::Scalar>::Raw;
fn to_raw(self) -> Self::Raw {
self.bits().to_raw()
}
fn from_raw(raw: Self::Raw) -> Self {
let t = <u16>::from_raw(raw);
Self::from_bits_truncate(t)
}
}
#[cfg(feature = "traversal")]
impl<'a> From<GvarFlags> for FieldType<'a> {
fn from(src: GvarFlags) -> FieldType<'a> {
src.bits().into()
}
}
/// Array of tuple records shared across all glyph variation data tables.
#[derive(Debug, Clone, Copy)]
#[doc(hidden)]
pub struct SharedTuplesMarker {
axis_count: u16,
tuples_byte_len: usize,
}
impl SharedTuplesMarker {
fn tuples_byte_range(&self) -> Range<usize> {
let start = 0;
start..start + self.tuples_byte_len
}
}
impl ReadArgs for SharedTuples<'_> {
type Args = (u16, u16);
}
impl<'a> FontReadWithArgs<'a> for SharedTuples<'a> {
fn read_with_args(data: FontData<'a>, args: &(u16, u16)) -> Result<Self, ReadError> {
let (shared_tuple_count, axis_count) = *args;
let mut cursor = data.cursor();
let tuples_byte_len = (shared_tuple_count as usize)
.checked_mul(<Tuple as ComputeSize>::compute_size(&axis_count)?)
.ok_or(ReadError::OutOfBounds)?;
cursor.advance_by(tuples_byte_len);
cursor.finish(SharedTuplesMarker {
axis_count,
tuples_byte_len,
})
}
}
impl<'a> SharedTuples<'a> {
/// A constructor that requires additional arguments.
///
/// This type requires some external state in order to be
/// parsed.
pub fn read(
data: FontData<'a>,
shared_tuple_count: u16,
axis_count: u16,
) -> Result<Self, ReadError> {
let args = (shared_tuple_count, axis_count);
Self::read_with_args(data, &args)
}
}
/// Array of tuple records shared across all glyph variation data tables.
pub type SharedTuples<'a> = TableRef<'a, SharedTuplesMarker>;
impl<'a> SharedTuples<'a> {
pub fn tuples(&self) -> ComputedArray<'a, Tuple<'a>> {
let range = self.shape.tuples_byte_range();
self.data.read_with_args(range, &self.axis_count()).unwrap()
}
pub(crate) fn axis_count(&self) -> u16 {
self.shape.axis_count
}
}
#[cfg(feature = "traversal")]
impl<'a> SomeTable<'a> for SharedTuples<'a> {
fn type_name(&self) -> &str {
"SharedTuples"
}
fn get_field(&self, idx: usize) -> Option<Field<'a>> {
match idx {
0usize => Some(Field::new(
"tuples",
traversal::FieldType::computed_array("Tuple", self.tuples(), self.offset_data()),
)),
_ => None,
}
}
}
#[cfg(feature = "traversal")]
impl<'a> std::fmt::Debug for SharedTuples<'a> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
(self as &dyn SomeTable<'a>).fmt(f)
}
}
/// The [GlyphVariationData](https://learn.microsoft.com/en-us/typography/opentype/spec/gvar#the-glyphvariationdata-table-array) table
#[derive(Debug, Clone, Copy)]
#[doc(hidden)]
pub struct GlyphVariationDataHeaderMarker {
tuple_variation_headers_byte_len: usize,
}
impl GlyphVariationDataHeaderMarker {
fn tuple_variation_count_byte_range(&self) -> Range<usize> {
let start = 0;
start..start + TupleVariationCount::RAW_BYTE_LEN
}
fn serialized_data_offset_byte_range(&self) -> Range<usize> {
let start = self.tuple_variation_count_byte_range().end;
start..start + Offset16::RAW_BYTE_LEN
}
fn tuple_variation_headers_byte_range(&self) -> Range<usize> {
let start = self.serialized_data_offset_byte_range().end;
start..start + self.tuple_variation_headers_byte_len
}
}
impl<'a> FontRead<'a> for GlyphVariationDataHeader<'a> {
fn read(data: FontData<'a>) -> Result<Self, ReadError> {
let mut cursor = data.cursor();
cursor.advance::<TupleVariationCount>();
cursor.advance::<Offset16>();
let tuple_variation_headers_byte_len = cursor.remaining_bytes();
cursor.advance_by(tuple_variation_headers_byte_len);
cursor.finish(GlyphVariationDataHeaderMarker {
tuple_variation_headers_byte_len,
})
}
}
/// The [GlyphVariationData](https://learn.microsoft.com/en-us/typography/opentype/spec/gvar#the-glyphvariationdata-table-array) table
pub type GlyphVariationDataHeader<'a> = TableRef<'a, GlyphVariationDataHeaderMarker>;
impl<'a> GlyphVariationDataHeader<'a> {
/// A packed field. The high 4 bits are flags, and the low 12 bits
/// are the number of tuple variation tables for this glyph. The
/// number of tuple variation tables can be any number between 1
/// and 4095.
pub fn tuple_variation_count(&self) -> TupleVariationCount {
let range = self.shape.tuple_variation_count_byte_range();
self.data.read_at(range.start).unwrap()
}
/// Offset from the start of the GlyphVariationData table to the
/// serialized data
pub fn serialized_data_offset(&self) -> Offset16 {
let range = self.shape.serialized_data_offset_byte_range();
self.data.read_at(range.start).unwrap()
}
/// Attempt to resolve [`serialized_data_offset`][Self::serialized_data_offset].
pub fn serialized_data(&self) -> Result<FontData<'a>, ReadError> {
let data = self.data;
self.serialized_data_offset().resolve(data)
}
/// Array of tuple variation headers.
pub fn tuple_variation_headers(&self) -> VarLenArray<'a, TupleVariationHeader> {
let range = self.shape.tuple_variation_headers_byte_range();
VarLenArray::read(self.data.split_off(range.start).unwrap()).unwrap()
}
}
#[cfg(feature = "traversal")]
impl<'a> SomeTable<'a> for GlyphVariationDataHeader<'a> {
fn type_name(&self) -> &str {
"GlyphVariationDataHeader"
}
fn get_field(&self, idx: usize) -> Option<Field<'a>> {
match idx {
0usize => Some(Field::new(
"tuple_variation_count",
traversal::FieldType::Unknown,
)),
1usize => Some(Field::new(
"serialized_data_offset",
traversal::FieldType::Unknown,
)),
2usize => Some(Field::new(
"tuple_variation_headers",
traversal::FieldType::Unknown,
)),
_ => None,
}
}
}
#[cfg(feature = "traversal")]
impl<'a> std::fmt::Debug for GlyphVariationDataHeader<'a> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
(self as &dyn SomeTable<'a>).fmt(f)
}
}
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