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 ReadArgs for Cff2Header<'_> {
19    type Args = ();
20}
21
22impl<'a> FontRead<'a> for Cff2Header<'a> {
23    fn read_with_args(data: FontData<'a>, _: ()) -> Result<Self, ReadError> {
24        #[allow(clippy::absurd_extreme_comparisons)]
25        if data.len() < Self::MIN_SIZE {
26            return Err(ReadError::OutOfBounds);
27        }
28        Ok(Self { data })
29    }
30}
31
32/// [Compact Font Format (CFF) version 2](https://learn.microsoft.com/en-us/typography/opentype/spec/cff2) table header
33#[derive(Clone)]
34pub struct Cff2Header<'a> {
35    data: FontData<'a>,
36}
37
38#[allow(clippy::needless_lifetimes)]
39impl<'a> Cff2Header<'a> {
40    pub const MIN_SIZE: usize =
41        (u8::RAW_BYTE_LEN + u8::RAW_BYTE_LEN + u8::RAW_BYTE_LEN + u16::RAW_BYTE_LEN);
42    basic_table_impls!(impl_the_methods);
43
44    /// Format major version (set to 2).
45    pub fn major_version(&self) -> u8 {
46        let range = self.major_version_byte_range();
47        self.data.read_at(range.start).ok().unwrap()
48    }
49
50    /// Format minor version (set to 0).
51    pub fn minor_version(&self) -> u8 {
52        let range = self.minor_version_byte_range();
53        self.data.read_at(range.start).ok().unwrap()
54    }
55
56    /// Header size (bytes).
57    pub fn header_size(&self) -> u8 {
58        let range = self.header_size_byte_range();
59        self.data.read_at(range.start).ok().unwrap()
60    }
61
62    /// Length of Top DICT structure in bytes.
63    pub fn top_dict_length(&self) -> u16 {
64        let range = self.top_dict_length_byte_range();
65        self.data.read_at(range.start).ok().unwrap()
66    }
67
68    /// Padding bytes before the start of the Top DICT.
69    pub fn _padding(&self) -> &'a [u8] {
70        let range = self._padding_byte_range();
71        self.data.read_array(range).ok().unwrap_or_default()
72    }
73
74    /// Data containing the Top DICT.
75    pub fn top_dict_data(&self) -> &'a [u8] {
76        let range = self.top_dict_data_byte_range();
77        self.data.read_array(range).ok().unwrap_or_default()
78    }
79
80    /// Remaining table data.
81    pub fn trailing_data(&self) -> &'a [u8] {
82        let range = self.trailing_data_byte_range();
83        self.data.read_array(range).ok().unwrap_or_default()
84    }
85
86    pub fn major_version_byte_range(&self) -> Range<usize> {
87        let start = 0;
88        let end = start + u8::RAW_BYTE_LEN;
89        start..end
90    }
91
92    pub fn minor_version_byte_range(&self) -> Range<usize> {
93        let start = self.major_version_byte_range().end;
94        let end = start + u8::RAW_BYTE_LEN;
95        start..end
96    }
97
98    pub fn header_size_byte_range(&self) -> Range<usize> {
99        let start = self.minor_version_byte_range().end;
100        let end = start + u8::RAW_BYTE_LEN;
101        start..end
102    }
103
104    pub fn top_dict_length_byte_range(&self) -> Range<usize> {
105        let start = self.header_size_byte_range().end;
106        let end = start + u16::RAW_BYTE_LEN;
107        start..end
108    }
109
110    pub fn _padding_byte_range(&self) -> Range<usize> {
111        let header_size = self.header_size();
112        let start = self.top_dict_length_byte_range().end;
113        let end =
114            start + (transforms::subtract(header_size, 5_usize)).saturating_mul(u8::RAW_BYTE_LEN);
115        start..end
116    }
117
118    pub fn top_dict_data_byte_range(&self) -> Range<usize> {
119        let top_dict_length = self.top_dict_length();
120        let start = self._padding_byte_range().end;
121        let end = start + (transforms::to_usize(top_dict_length)).saturating_mul(u8::RAW_BYTE_LEN);
122        start..end
123    }
124
125    pub fn trailing_data_byte_range(&self) -> Range<usize> {
126        let start = self.top_dict_data_byte_range().end;
127        let end =
128            start + self.data.len().saturating_sub(start) / u8::RAW_BYTE_LEN * u8::RAW_BYTE_LEN;
129        start..end
130    }
131}
132
133const _: () = assert!(FontData::default_data_long_enough(Cff2Header::MIN_SIZE));
134
135impl Default for Cff2Header<'_> {
136    fn default() -> Self {
137        Self {
138            data: FontData::default_table_data(),
139        }
140    }
141}
142
143#[cfg(feature = "experimental_traverse")]
144impl<'a> SomeTable<'a> for Cff2Header<'a> {
145    fn type_name(&self) -> &str {
146        "Cff2Header"
147    }
148    fn get_field(&self, idx: usize) -> Option<Field<'a>> {
149        match idx {
150            0usize => Some(Field::new("major_version", self.major_version())),
151            1usize => Some(Field::new("minor_version", self.minor_version())),
152            2usize => Some(Field::new("header_size", self.header_size())),
153            3usize => Some(Field::new("top_dict_length", self.top_dict_length())),
154            4usize => Some(Field::new("_padding", self._padding())),
155            5usize => Some(Field::new("top_dict_data", self.top_dict_data())),
156            6usize => Some(Field::new("trailing_data", self.trailing_data())),
157            _ => None,
158        }
159    }
160}
161
162#[cfg(feature = "experimental_traverse")]
163#[allow(clippy::needless_lifetimes)]
164impl<'a> std::fmt::Debug for Cff2Header<'a> {
165    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
166        (self as &dyn SomeTable<'a>).fmt(f)
167    }
168}
169
170impl<'a> MinByteRange<'a> for Index<'a> {
171    fn min_byte_range(&self) -> Range<usize> {
172        0..self.data_byte_range().end
173    }
174    fn min_table_bytes(&self) -> &'a [u8] {
175        let range = self.min_byte_range();
176        self.data.as_bytes().get(range).unwrap_or_default()
177    }
178}
179
180impl ReadArgs for Index<'_> {
181    type Args = ();
182}
183
184impl<'a> FontRead<'a> for Index<'a> {
185    fn read_with_args(data: FontData<'a>, _: ()) -> Result<Self, ReadError> {
186        #[allow(clippy::absurd_extreme_comparisons)]
187        if data.len() < Self::MIN_SIZE {
188            return Err(ReadError::OutOfBounds);
189        }
190        Ok(Self { data })
191    }
192}
193
194/// An array of variable-sized objects in a `CFF2` table.
195#[derive(Clone)]
196pub struct Index<'a> {
197    data: FontData<'a>,
198}
199
200#[allow(clippy::needless_lifetimes)]
201impl<'a> Index<'a> {
202    pub const MIN_SIZE: usize = (u32::RAW_BYTE_LEN + u8::RAW_BYTE_LEN);
203    basic_table_impls!(impl_the_methods);
204
205    /// Number of objects stored in INDEX.
206    pub fn count(&self) -> u32 {
207        let range = self.count_byte_range();
208        self.data.read_at(range.start).ok().unwrap()
209    }
210
211    /// Object array element size.
212    pub fn off_size(&self) -> u8 {
213        let range = self.off_size_byte_range();
214        self.data.read_at(range.start).ok().unwrap()
215    }
216
217    /// Bytes containing `count + 1` offsets each of `off_size`.
218    pub fn offsets(&self) -> &'a [u8] {
219        let range = self.offsets_byte_range();
220        self.data.read_array(range).ok().unwrap_or_default()
221    }
222
223    /// Array containing the object data.
224    pub fn data(&self) -> &'a [u8] {
225        let range = self.data_byte_range();
226        self.data.read_array(range).ok().unwrap_or_default()
227    }
228
229    pub fn count_byte_range(&self) -> Range<usize> {
230        let start = 0;
231        let end = start + u32::RAW_BYTE_LEN;
232        start..end
233    }
234
235    pub fn off_size_byte_range(&self) -> Range<usize> {
236        let start = self.count_byte_range().end;
237        let end = start + u8::RAW_BYTE_LEN;
238        start..end
239    }
240
241    pub fn offsets_byte_range(&self) -> Range<usize> {
242        let count = self.count();
243        let off_size = self.off_size();
244        let start = self.off_size_byte_range().end;
245        let end = start
246            + (transforms::add_multiply(count, 1_usize, off_size)).saturating_mul(u8::RAW_BYTE_LEN);
247        start..end
248    }
249
250    pub fn data_byte_range(&self) -> Range<usize> {
251        let start = self.offsets_byte_range().end;
252        let end =
253            start + self.data.len().saturating_sub(start) / u8::RAW_BYTE_LEN * u8::RAW_BYTE_LEN;
254        start..end
255    }
256}
257
258const _: () = assert!(FontData::default_data_long_enough(Index::MIN_SIZE));
259
260impl Default for Index<'_> {
261    fn default() -> Self {
262        Self {
263            data: FontData::default_table_data(),
264        }
265    }
266}
267
268#[cfg(feature = "experimental_traverse")]
269impl<'a> SomeTable<'a> for Index<'a> {
270    fn type_name(&self) -> &str {
271        "Index"
272    }
273    fn get_field(&self, idx: usize) -> Option<Field<'a>> {
274        match idx {
275            0usize => Some(Field::new("count", self.count())),
276            1usize => Some(Field::new("off_size", self.off_size())),
277            2usize => Some(Field::new("offsets", self.offsets())),
278            3usize => Some(Field::new("data", self.data())),
279            _ => None,
280        }
281    }
282}
283
284#[cfg(feature = "experimental_traverse")]
285#[allow(clippy::needless_lifetimes)]
286impl<'a> std::fmt::Debug for Index<'a> {
287    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
288        (self as &dyn SomeTable<'a>).fmt(f)
289    }
290}
read_fonts/generated/generated_cff2.rs

read_fonts/generated/
generated_cff2.rs
