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        let end = start + u8::RAW_BYTE_LEN;
85        start..end
86    }
87
88    pub fn minor_version_byte_range(&self) -> Range<usize> {
89        let start = self.major_version_byte_range().end;
90        let end = start + u8::RAW_BYTE_LEN;
91        start..end
92    }
93
94    pub fn header_size_byte_range(&self) -> Range<usize> {
95        let start = self.minor_version_byte_range().end;
96        let end = start + u8::RAW_BYTE_LEN;
97        start..end
98    }
99
100    pub fn top_dict_length_byte_range(&self) -> Range<usize> {
101        let start = self.header_size_byte_range().end;
102        let end = start + u16::RAW_BYTE_LEN;
103        start..end
104    }
105
106    pub fn _padding_byte_range(&self) -> Range<usize> {
107        let header_size = self.header_size();
108        let start = self.top_dict_length_byte_range().end;
109        let end =
110            start + (transforms::subtract(header_size, 5_usize)).saturating_mul(u8::RAW_BYTE_LEN);
111        start..end
112    }
113
114    pub fn top_dict_data_byte_range(&self) -> Range<usize> {
115        let top_dict_length = self.top_dict_length();
116        let start = self._padding_byte_range().end;
117        let end = start + (transforms::to_usize(top_dict_length)).saturating_mul(u8::RAW_BYTE_LEN);
118        start..end
119    }
120
121    pub fn trailing_data_byte_range(&self) -> Range<usize> {
122        let start = self.top_dict_data_byte_range().end;
123        let end =
124            start + self.data.len().saturating_sub(start) / u8::RAW_BYTE_LEN * u8::RAW_BYTE_LEN;
125        start..end
126    }
127}
128
129const _: () = assert!(FontData::default_data_long_enough(Cff2Header::MIN_SIZE));
130
131impl Default for Cff2Header<'_> {
132    fn default() -> Self {
133        Self {
134            data: FontData::default_table_data(),
135        }
136    }
137}
138
139#[cfg(feature = "experimental_traverse")]
140impl<'a> SomeTable<'a> for Cff2Header<'a> {
141    fn type_name(&self) -> &str {
142        "Cff2Header"
143    }
144    fn get_field(&self, idx: usize) -> Option<Field<'a>> {
145        match idx {
146            0usize => Some(Field::new("major_version", self.major_version())),
147            1usize => Some(Field::new("minor_version", self.minor_version())),
148            2usize => Some(Field::new("header_size", self.header_size())),
149            3usize => Some(Field::new("top_dict_length", self.top_dict_length())),
150            4usize => Some(Field::new("_padding", self._padding())),
151            5usize => Some(Field::new("top_dict_data", self.top_dict_data())),
152            6usize => Some(Field::new("trailing_data", self.trailing_data())),
153            _ => None,
154        }
155    }
156}
157
158#[cfg(feature = "experimental_traverse")]
159#[allow(clippy::needless_lifetimes)]
160impl<'a> std::fmt::Debug for Cff2Header<'a> {
161    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
162        (self as &dyn SomeTable<'a>).fmt(f)
163    }
164}
165
166impl<'a> MinByteRange<'a> for Index<'a> {
167    fn min_byte_range(&self) -> Range<usize> {
168        0..self.data_byte_range().end
169    }
170    fn min_table_bytes(&self) -> &'a [u8] {
171        let range = self.min_byte_range();
172        self.data.as_bytes().get(range).unwrap_or_default()
173    }
174}
175
176impl<'a> FontRead<'a> for Index<'a> {
177    fn read(data: FontData<'a>) -> Result<Self, ReadError> {
178        #[allow(clippy::absurd_extreme_comparisons)]
179        if data.len() < Self::MIN_SIZE {
180            return Err(ReadError::OutOfBounds);
181        }
182        Ok(Self { data })
183    }
184}
185
186/// An array of variable-sized objects in a `CFF2` table.
187#[derive(Clone)]
188pub struct Index<'a> {
189    data: FontData<'a>,
190}
191
192#[allow(clippy::needless_lifetimes)]
193impl<'a> Index<'a> {
194    pub const MIN_SIZE: usize = (u32::RAW_BYTE_LEN + u8::RAW_BYTE_LEN);
195    basic_table_impls!(impl_the_methods);
196
197    /// Number of objects stored in INDEX.
198    pub fn count(&self) -> u32 {
199        let range = self.count_byte_range();
200        self.data.read_at(range.start).ok().unwrap()
201    }
202
203    /// Object array element size.
204    pub fn off_size(&self) -> u8 {
205        let range = self.off_size_byte_range();
206        self.data.read_at(range.start).ok().unwrap()
207    }
208
209    /// Bytes containing `count + 1` offsets each of `off_size`.
210    pub fn offsets(&self) -> &'a [u8] {
211        let range = self.offsets_byte_range();
212        self.data.read_array(range).ok().unwrap_or_default()
213    }
214
215    /// Array containing the object data.
216    pub fn data(&self) -> &'a [u8] {
217        let range = self.data_byte_range();
218        self.data.read_array(range).ok().unwrap_or_default()
219    }
220
221    pub fn count_byte_range(&self) -> Range<usize> {
222        let start = 0;
223        let end = start + u32::RAW_BYTE_LEN;
224        start..end
225    }
226
227    pub fn off_size_byte_range(&self) -> Range<usize> {
228        let start = self.count_byte_range().end;
229        let end = start + u8::RAW_BYTE_LEN;
230        start..end
231    }
232
233    pub fn offsets_byte_range(&self) -> Range<usize> {
234        let count = self.count();
235        let off_size = self.off_size();
236        let start = self.off_size_byte_range().end;
237        let end = start
238            + (transforms::add_multiply(count, 1_usize, off_size)).saturating_mul(u8::RAW_BYTE_LEN);
239        start..end
240    }
241
242    pub fn data_byte_range(&self) -> Range<usize> {
243        let start = self.offsets_byte_range().end;
244        let end =
245            start + self.data.len().saturating_sub(start) / u8::RAW_BYTE_LEN * u8::RAW_BYTE_LEN;
246        start..end
247    }
248}
249
250const _: () = assert!(FontData::default_data_long_enough(Index::MIN_SIZE));
251
252impl Default for Index<'_> {
253    fn default() -> Self {
254        Self {
255            data: FontData::default_table_data(),
256        }
257    }
258}
259
260#[cfg(feature = "experimental_traverse")]
261impl<'a> SomeTable<'a> for Index<'a> {
262    fn type_name(&self) -> &str {
263        "Index"
264    }
265    fn get_field(&self, idx: usize) -> Option<Field<'a>> {
266        match idx {
267            0usize => Some(Field::new("count", self.count())),
268            1usize => Some(Field::new("off_size", self.off_size())),
269            2usize => Some(Field::new("offsets", self.offsets())),
270            3usize => Some(Field::new("data", self.data())),
271            _ => None,
272        }
273    }
274}
275
276#[cfg(feature = "experimental_traverse")]
277#[allow(clippy::needless_lifetimes)]
278impl<'a> std::fmt::Debug for Index<'a> {
279    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
280        (self as &dyn SomeTable<'a>).fmt(f)
281    }
282}
read_fonts/generated/generated_cff2.rs

read_fonts/generated/
generated_cff2.rs
