read_fonts/generated/
generated_cff2.rs

1// THIS FILE IS AUTOGENERATED.
2// Any changes to this file will be overwritten.
3// For more information about how codegen works, see font-codegen/README.md
4
5#[allow(unused_imports)]
6use crate::codegen_prelude::*;
7
8impl<'a> MinByteRange<'a> for Cff2Header<'a> {
9    fn min_byte_range(&self) -> Range<usize> {
10        0..self.trailing_data_byte_range().end
11    }
12    fn min_table_bytes(&self) -> &'a [u8] {
13        let range = self.min_byte_range();
14        self.data.as_bytes().get(range).unwrap_or_default()
15    }
16}
17
18impl<'a> FontRead<'a> for Cff2Header<'a> {
19    fn read(data: FontData<'a>) -> Result<Self, ReadError> {
20        #[allow(clippy::absurd_extreme_comparisons)]
21        if data.len() < Self::MIN_SIZE {
22            return Err(ReadError::OutOfBounds);
23        }
24        Ok(Self { data })
25    }
26}
27
28/// [Compact Font Format (CFF) version 2](https://learn.microsoft.com/en-us/typography/opentype/spec/cff2) table header
29#[derive(Clone)]
30pub struct Cff2Header<'a> {
31    data: FontData<'a>,
32}
33
34#[allow(clippy::needless_lifetimes)]
35impl<'a> Cff2Header<'a> {
36    pub const MIN_SIZE: usize =
37        (u8::RAW_BYTE_LEN + u8::RAW_BYTE_LEN + u8::RAW_BYTE_LEN + u16::RAW_BYTE_LEN);
38    basic_table_impls!(impl_the_methods);
39
40    /// Format major version (set to 2).
41    pub fn major_version(&self) -> u8 {
42        let range = self.major_version_byte_range();
43        self.data.read_at(range.start).ok().unwrap()
44    }
45
46    /// Format minor version (set to 0).
47    pub fn minor_version(&self) -> u8 {
48        let range = self.minor_version_byte_range();
49        self.data.read_at(range.start).ok().unwrap()
50    }
51
52    /// Header size (bytes).
53    pub fn header_size(&self) -> u8 {
54        let range = self.header_size_byte_range();
55        self.data.read_at(range.start).ok().unwrap()
56    }
57
58    /// Length of Top DICT structure in bytes.
59    pub fn top_dict_length(&self) -> u16 {
60        let range = self.top_dict_length_byte_range();
61        self.data.read_at(range.start).ok().unwrap()
62    }
63
64    /// Padding bytes before the start of the Top DICT.
65    pub fn _padding(&self) -> &'a [u8] {
66        let range = self._padding_byte_range();
67        self.data.read_array(range).ok().unwrap_or_default()
68    }
69
70    /// Data containing the Top DICT.
71    pub fn top_dict_data(&self) -> &'a [u8] {
72        let range = self.top_dict_data_byte_range();
73        self.data.read_array(range).ok().unwrap_or_default()
74    }
75
76    /// Remaining table data.
77    pub fn trailing_data(&self) -> &'a [u8] {
78        let range = self.trailing_data_byte_range();
79        self.data.read_array(range).ok().unwrap_or_default()
80    }
81
82    pub fn major_version_byte_range(&self) -> Range<usize> {
83        let start = 0;
84        start..start + u8::RAW_BYTE_LEN
85    }
86
87    pub fn minor_version_byte_range(&self) -> Range<usize> {
88        let start = self.major_version_byte_range().end;
89        start..start + u8::RAW_BYTE_LEN
90    }
91
92    pub fn header_size_byte_range(&self) -> Range<usize> {
93        let start = self.minor_version_byte_range().end;
94        start..start + u8::RAW_BYTE_LEN
95    }
96
97    pub fn top_dict_length_byte_range(&self) -> Range<usize> {
98        let start = self.header_size_byte_range().end;
99        start..start + u16::RAW_BYTE_LEN
100    }
101
102    pub fn _padding_byte_range(&self) -> Range<usize> {
103        let header_size = self.header_size();
104        let start = self.top_dict_length_byte_range().end;
105        start..start + (transforms::subtract(header_size, 5_usize)).saturating_mul(u8::RAW_BYTE_LEN)
106    }
107
108    pub fn top_dict_data_byte_range(&self) -> Range<usize> {
109        let top_dict_length = self.top_dict_length();
110        let start = self._padding_byte_range().end;
111        start..start + (transforms::to_usize(top_dict_length)).saturating_mul(u8::RAW_BYTE_LEN)
112    }
113
114    pub fn trailing_data_byte_range(&self) -> Range<usize> {
115        let start = self.top_dict_data_byte_range().end;
116        start..start + self.data.len().saturating_sub(start) / u8::RAW_BYTE_LEN * u8::RAW_BYTE_LEN
117    }
118}
119
120const _: () = assert!(FontData::default_data_long_enough(Cff2Header::MIN_SIZE));
121
122impl Default for Cff2Header<'_> {
123    fn default() -> Self {
124        Self {
125            data: FontData::default_table_data(),
126        }
127    }
128}
129
130#[cfg(feature = "experimental_traverse")]
131impl<'a> SomeTable<'a> for Cff2Header<'a> {
132    fn type_name(&self) -> &str {
133        "Cff2Header"
134    }
135    fn get_field(&self, idx: usize) -> Option<Field<'a>> {
136        match idx {
137            0usize => Some(Field::new("major_version", self.major_version())),
138            1usize => Some(Field::new("minor_version", self.minor_version())),
139            2usize => Some(Field::new("header_size", self.header_size())),
140            3usize => Some(Field::new("top_dict_length", self.top_dict_length())),
141            4usize => Some(Field::new("_padding", self._padding())),
142            5usize => Some(Field::new("top_dict_data", self.top_dict_data())),
143            6usize => Some(Field::new("trailing_data", self.trailing_data())),
144            _ => None,
145        }
146    }
147}
148
149#[cfg(feature = "experimental_traverse")]
150#[allow(clippy::needless_lifetimes)]
151impl<'a> std::fmt::Debug for Cff2Header<'a> {
152    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
153        (self as &dyn SomeTable<'a>).fmt(f)
154    }
155}
156
157impl<'a> MinByteRange<'a> for Index<'a> {
158    fn min_byte_range(&self) -> Range<usize> {
159        0..self.data_byte_range().end
160    }
161    fn min_table_bytes(&self) -> &'a [u8] {
162        let range = self.min_byte_range();
163        self.data.as_bytes().get(range).unwrap_or_default()
164    }
165}
166
167impl<'a> FontRead<'a> for Index<'a> {
168    fn read(data: FontData<'a>) -> Result<Self, ReadError> {
169        #[allow(clippy::absurd_extreme_comparisons)]
170        if data.len() < Self::MIN_SIZE {
171            return Err(ReadError::OutOfBounds);
172        }
173        Ok(Self { data })
174    }
175}
176
177/// An array of variable-sized objects in a `CFF2` table.
178#[derive(Clone)]
179pub struct Index<'a> {
180    data: FontData<'a>,
181}
182
183#[allow(clippy::needless_lifetimes)]
184impl<'a> Index<'a> {
185    pub const MIN_SIZE: usize = (u32::RAW_BYTE_LEN + u8::RAW_BYTE_LEN);
186    basic_table_impls!(impl_the_methods);
187
188    /// Number of objects stored in INDEX.
189    pub fn count(&self) -> u32 {
190        let range = self.count_byte_range();
191        self.data.read_at(range.start).ok().unwrap()
192    }
193
194    /// Object array element size.
195    pub fn off_size(&self) -> u8 {
196        let range = self.off_size_byte_range();
197        self.data.read_at(range.start).ok().unwrap()
198    }
199
200    /// Bytes containing `count + 1` offsets each of `off_size`.
201    pub fn offsets(&self) -> &'a [u8] {
202        let range = self.offsets_byte_range();
203        self.data.read_array(range).ok().unwrap_or_default()
204    }
205
206    /// Array containing the object data.
207    pub fn data(&self) -> &'a [u8] {
208        let range = self.data_byte_range();
209        self.data.read_array(range).ok().unwrap_or_default()
210    }
211
212    pub fn count_byte_range(&self) -> Range<usize> {
213        let start = 0;
214        start..start + u32::RAW_BYTE_LEN
215    }
216
217    pub fn off_size_byte_range(&self) -> Range<usize> {
218        let start = self.count_byte_range().end;
219        start..start + u8::RAW_BYTE_LEN
220    }
221
222    pub fn offsets_byte_range(&self) -> Range<usize> {
223        let count = self.count();
224        let off_size = self.off_size();
225        let start = self.off_size_byte_range().end;
226        start
227            ..start
228                + (transforms::add_multiply(count, 1_usize, off_size))
229                    .saturating_mul(u8::RAW_BYTE_LEN)
230    }
231
232    pub fn data_byte_range(&self) -> Range<usize> {
233        let start = self.offsets_byte_range().end;
234        start..start + self.data.len().saturating_sub(start) / u8::RAW_BYTE_LEN * u8::RAW_BYTE_LEN
235    }
236}
237
238const _: () = assert!(FontData::default_data_long_enough(Index::MIN_SIZE));
239
240impl Default for Index<'_> {
241    fn default() -> Self {
242        Self {
243            data: FontData::default_table_data(),
244        }
245    }
246}
247
248#[cfg(feature = "experimental_traverse")]
249impl<'a> SomeTable<'a> for Index<'a> {
250    fn type_name(&self) -> &str {
251        "Index"
252    }
253    fn get_field(&self, idx: usize) -> Option<Field<'a>> {
254        match idx {
255            0usize => Some(Field::new("count", self.count())),
256            1usize => Some(Field::new("off_size", self.off_size())),
257            2usize => Some(Field::new("offsets", self.offsets())),
258            3usize => Some(Field::new("data", self.data())),
259            _ => None,
260        }
261    }
262}
263
264#[cfg(feature = "experimental_traverse")]
265#[allow(clippy::needless_lifetimes)]
266impl<'a> std::fmt::Debug for Index<'a> {
267    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
268        (self as &dyn SomeTable<'a>).fmt(f)
269    }
270}
read_fonts/generated/generated_cff2.rs

read_fonts/generated/
generated_cff2.rs
