/rust/registry/src/index.crates.io-1949cf8c6b5b557f/read-fonts-0.46.0/generated/generated_sbix.rs
Line | Count | Source |
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)] |
6 | | use crate::codegen_prelude::*; |
7 | | |
8 | | /// Sbix header flags. |
9 | | #[derive(Clone, Copy, Default, PartialEq, Eq, PartialOrd, Ord, Hash, bytemuck :: AnyBitPattern)] |
10 | | #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))] |
11 | | #[repr(transparent)] |
12 | | pub struct HeaderFlags { |
13 | | bits: u16, |
14 | | } |
15 | | |
16 | | impl HeaderFlags { |
17 | | /// Bit 0: Set to 1. |
18 | | pub const ALWAYS_SET: Self = Self { bits: 0x0001 }; |
19 | | |
20 | | /// Bit 1: Draw outlines. |
21 | | pub const DRAW_OUTLINES: Self = Self { bits: 0x0002 }; |
22 | | } |
23 | | |
24 | | impl HeaderFlags { |
25 | | /// Returns an empty set of flags. |
26 | | #[inline] |
27 | 0 | pub const fn empty() -> Self { |
28 | 0 | Self { bits: 0 } |
29 | 0 | } |
30 | | |
31 | | /// Returns the set containing all flags. |
32 | | #[inline] |
33 | 0 | pub const fn all() -> Self { |
34 | 0 | Self { |
35 | 0 | bits: Self::ALWAYS_SET.bits | Self::DRAW_OUTLINES.bits, |
36 | 0 | } |
37 | 0 | } |
38 | | |
39 | | /// Returns the raw value of the flags currently stored. |
40 | | #[inline] |
41 | 0 | pub const fn bits(&self) -> u16 { |
42 | 0 | self.bits |
43 | 0 | } |
44 | | |
45 | | /// Convert from underlying bit representation, unless that |
46 | | /// representation contains bits that do not correspond to a flag. |
47 | | #[inline] |
48 | 0 | pub const fn from_bits(bits: u16) -> Option<Self> { |
49 | 0 | if (bits & !Self::all().bits()) == 0 { |
50 | 0 | Some(Self { bits }) |
51 | | } else { |
52 | 0 | None |
53 | | } |
54 | 0 | } |
55 | | |
56 | | /// Convert from underlying bit representation, dropping any bits |
57 | | /// that do not correspond to flags. |
58 | | #[inline] |
59 | 0 | pub const fn from_bits_truncate(bits: u16) -> Self { |
60 | 0 | Self { |
61 | 0 | bits: bits & Self::all().bits, |
62 | 0 | } |
63 | 0 | } |
64 | | |
65 | | /// Returns `true` if no flags are currently stored. |
66 | | #[inline] |
67 | 0 | pub const fn is_empty(&self) -> bool { |
68 | 0 | self.bits() == Self::empty().bits() |
69 | 0 | } |
70 | | |
71 | | /// Returns `true` if there are flags common to both `self` and `other`. |
72 | | #[inline] |
73 | 0 | pub const fn intersects(&self, other: Self) -> bool { |
74 | 0 | !(Self { |
75 | 0 | bits: self.bits & other.bits, |
76 | 0 | }) |
77 | 0 | .is_empty() |
78 | 0 | } |
79 | | |
80 | | /// Returns `true` if all of the flags in `other` are contained within `self`. |
81 | | #[inline] |
82 | 0 | pub const fn contains(&self, other: Self) -> bool { |
83 | 0 | (self.bits & other.bits) == other.bits |
84 | 0 | } |
85 | | |
86 | | /// Inserts the specified flags in-place. |
87 | | #[inline] |
88 | 0 | pub fn insert(&mut self, other: Self) { |
89 | 0 | self.bits |= other.bits; |
90 | 0 | } |
91 | | |
92 | | /// Removes the specified flags in-place. |
93 | | #[inline] |
94 | 0 | pub fn remove(&mut self, other: Self) { |
95 | 0 | self.bits &= !other.bits; |
96 | 0 | } |
97 | | |
98 | | /// Toggles the specified flags in-place. |
99 | | #[inline] |
100 | 0 | pub fn toggle(&mut self, other: Self) { |
101 | 0 | self.bits ^= other.bits; |
102 | 0 | } |
103 | | |
104 | | /// Returns the intersection between the flags in `self` and |
105 | | /// `other`. |
106 | | /// |
107 | | /// Specifically, the returned set contains only the flags which are |
108 | | /// present in *both* `self` *and* `other`. |
109 | | /// |
110 | | /// This is equivalent to using the `&` operator (e.g. |
111 | | /// [`ops::BitAnd`]), as in `flags & other`. |
112 | | /// |
113 | | /// [`ops::BitAnd`]: https://doc.rust-lang.org/std/ops/trait.BitAnd.html |
114 | | #[inline] |
115 | | #[must_use] |
116 | 0 | pub const fn intersection(self, other: Self) -> Self { |
117 | 0 | Self { |
118 | 0 | bits: self.bits & other.bits, |
119 | 0 | } |
120 | 0 | } |
121 | | |
122 | | /// Returns the union of between the flags in `self` and `other`. |
123 | | /// |
124 | | /// Specifically, the returned set contains all flags which are |
125 | | /// present in *either* `self` *or* `other`, including any which are |
126 | | /// present in both. |
127 | | /// |
128 | | /// This is equivalent to using the `|` operator (e.g. |
129 | | /// [`ops::BitOr`]), as in `flags | other`. |
130 | | /// |
131 | | /// [`ops::BitOr`]: https://doc.rust-lang.org/std/ops/trait.BitOr.html |
132 | | #[inline] |
133 | | #[must_use] |
134 | 0 | pub const fn union(self, other: Self) -> Self { |
135 | 0 | Self { |
136 | 0 | bits: self.bits | other.bits, |
137 | 0 | } |
138 | 0 | } |
139 | | |
140 | | /// Returns the difference between the flags in `self` and `other`. |
141 | | /// |
142 | | /// Specifically, the returned set contains all flags present in |
143 | | /// `self`, except for the ones present in `other`. |
144 | | /// |
145 | | /// It is also conceptually equivalent to the "bit-clear" operation: |
146 | | /// `flags & !other` (and this syntax is also supported). |
147 | | /// |
148 | | /// This is equivalent to using the `-` operator (e.g. |
149 | | /// [`ops::Sub`]), as in `flags - other`. |
150 | | /// |
151 | | /// [`ops::Sub`]: https://doc.rust-lang.org/std/ops/trait.Sub.html |
152 | | #[inline] |
153 | | #[must_use] |
154 | 0 | pub const fn difference(self, other: Self) -> Self { |
155 | 0 | Self { |
156 | 0 | bits: self.bits & !other.bits, |
157 | 0 | } |
158 | 0 | } |
159 | | } |
160 | | |
161 | | impl std::ops::BitOr for HeaderFlags { |
162 | | type Output = Self; |
163 | | |
164 | | /// Returns the union of the two sets of flags. |
165 | | #[inline] |
166 | 0 | fn bitor(self, other: HeaderFlags) -> Self { |
167 | 0 | Self { |
168 | 0 | bits: self.bits | other.bits, |
169 | 0 | } |
170 | 0 | } |
171 | | } |
172 | | |
173 | | impl std::ops::BitOrAssign for HeaderFlags { |
174 | | /// Adds the set of flags. |
175 | | #[inline] |
176 | 0 | fn bitor_assign(&mut self, other: Self) { |
177 | 0 | self.bits |= other.bits; |
178 | 0 | } |
179 | | } |
180 | | |
181 | | impl std::ops::BitXor for HeaderFlags { |
182 | | type Output = Self; |
183 | | |
184 | | /// Returns the left flags, but with all the right flags toggled. |
185 | | #[inline] |
186 | 0 | fn bitxor(self, other: Self) -> Self { |
187 | 0 | Self { |
188 | 0 | bits: self.bits ^ other.bits, |
189 | 0 | } |
190 | 0 | } |
191 | | } |
192 | | |
193 | | impl std::ops::BitXorAssign for HeaderFlags { |
194 | | /// Toggles the set of flags. |
195 | | #[inline] |
196 | 0 | fn bitxor_assign(&mut self, other: Self) { |
197 | 0 | self.bits ^= other.bits; |
198 | 0 | } |
199 | | } |
200 | | |
201 | | impl std::ops::BitAnd for HeaderFlags { |
202 | | type Output = Self; |
203 | | |
204 | | /// Returns the intersection between the two sets of flags. |
205 | | #[inline] |
206 | 0 | fn bitand(self, other: Self) -> Self { |
207 | 0 | Self { |
208 | 0 | bits: self.bits & other.bits, |
209 | 0 | } |
210 | 0 | } |
211 | | } |
212 | | |
213 | | impl std::ops::BitAndAssign for HeaderFlags { |
214 | | /// Disables all flags disabled in the set. |
215 | | #[inline] |
216 | 0 | fn bitand_assign(&mut self, other: Self) { |
217 | 0 | self.bits &= other.bits; |
218 | 0 | } |
219 | | } |
220 | | |
221 | | impl std::ops::Sub for HeaderFlags { |
222 | | type Output = Self; |
223 | | |
224 | | /// Returns the set difference of the two sets of flags. |
225 | | #[inline] |
226 | 0 | fn sub(self, other: Self) -> Self { |
227 | 0 | Self { |
228 | 0 | bits: self.bits & !other.bits, |
229 | 0 | } |
230 | 0 | } |
231 | | } |
232 | | |
233 | | impl std::ops::SubAssign for HeaderFlags { |
234 | | /// Disables all flags enabled in the set. |
235 | | #[inline] |
236 | 0 | fn sub_assign(&mut self, other: Self) { |
237 | 0 | self.bits &= !other.bits; |
238 | 0 | } |
239 | | } |
240 | | |
241 | | impl std::ops::Not for HeaderFlags { |
242 | | type Output = Self; |
243 | | |
244 | | /// Returns the complement of this set of flags. |
245 | | #[inline] |
246 | 0 | fn not(self) -> Self { |
247 | 0 | Self { bits: !self.bits } & Self::all() |
248 | 0 | } |
249 | | } |
250 | | |
251 | | impl std::fmt::Debug for HeaderFlags { |
252 | 0 | fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result { |
253 | 0 | let members: &[(&str, Self)] = &[ |
254 | 0 | ("ALWAYS_SET", Self::ALWAYS_SET), |
255 | 0 | ("DRAW_OUTLINES", Self::DRAW_OUTLINES), |
256 | 0 | ]; |
257 | 0 | let mut first = true; |
258 | 0 | for (name, value) in members { |
259 | 0 | if self.contains(*value) { |
260 | 0 | if !first { |
261 | 0 | f.write_str(" | ")?; |
262 | 0 | } |
263 | 0 | first = false; |
264 | 0 | f.write_str(name)?; |
265 | 0 | } |
266 | | } |
267 | 0 | if first { |
268 | 0 | f.write_str("(empty)")?; |
269 | 0 | } |
270 | 0 | Ok(()) |
271 | 0 | } |
272 | | } |
273 | | |
274 | | impl std::fmt::Binary for HeaderFlags { |
275 | 0 | fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result { |
276 | 0 | std::fmt::Binary::fmt(&self.bits, f) |
277 | 0 | } |
278 | | } |
279 | | |
280 | | impl std::fmt::Octal for HeaderFlags { |
281 | 0 | fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result { |
282 | 0 | std::fmt::Octal::fmt(&self.bits, f) |
283 | 0 | } |
284 | | } |
285 | | |
286 | | impl std::fmt::LowerHex for HeaderFlags { |
287 | 0 | fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result { |
288 | 0 | std::fmt::LowerHex::fmt(&self.bits, f) |
289 | 0 | } |
290 | | } |
291 | | |
292 | | impl std::fmt::UpperHex for HeaderFlags { |
293 | 0 | fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result { |
294 | 0 | std::fmt::UpperHex::fmt(&self.bits, f) |
295 | 0 | } |
296 | | } |
297 | | |
298 | | impl font_types::Scalar for HeaderFlags { |
299 | | type Raw = <u16 as font_types::Scalar>::Raw; |
300 | 0 | fn to_raw(self) -> Self::Raw { |
301 | 0 | self.bits().to_raw() |
302 | 0 | } |
303 | 0 | fn from_raw(raw: Self::Raw) -> Self { |
304 | 0 | let t = <u16>::from_raw(raw); |
305 | 0 | Self::from_bits_truncate(t) |
306 | 0 | } |
307 | | } |
308 | | |
309 | | impl<'a> MinByteRange<'a> for Sbix<'a> { |
310 | 0 | fn min_byte_range(&self) -> Range<usize> { |
311 | 0 | 0..self.strike_offsets_byte_range().end |
312 | 0 | } |
313 | 0 | fn min_table_bytes(&self) -> &'a [u8] { |
314 | 0 | let range = self.min_byte_range(); |
315 | 0 | self.offset_data().as_bytes().get(range).unwrap_or_default() |
316 | 0 | } |
317 | | } |
318 | | |
319 | | impl TopLevelTable for Sbix<'_> { |
320 | | /// `sbix` |
321 | | const TAG: Tag = Tag::new(b"sbix"); |
322 | | } |
323 | | |
324 | | impl ReadArgs for Sbix<'_> { |
325 | | type Args = u32; |
326 | | } |
327 | | |
328 | | impl<'a> FontRead<'a> for Sbix<'a> { |
329 | 210 | fn read_with_args(data: FontData<'a>, args: u32) -> Result<Self, ReadError> { |
330 | 210 | let num_glyphs = args; |
331 | | |
332 | | #[allow(clippy::absurd_extreme_comparisons)] |
333 | 210 | if data.len() < Self::MIN_SIZE { |
334 | 2 | return Err(ReadError::OutOfBounds); |
335 | 208 | } |
336 | 208 | let Some(data) = TableDataRef::new(data.as_bytes()) else { |
337 | 0 | return Err(ReadError::OutOfBounds); |
338 | | }; |
339 | 208 | Ok(Self { data, num_glyphs }) |
340 | 210 | } |
341 | | } |
342 | | |
343 | | impl<'a> Sbix<'a> { |
344 | | /// A constructor that requires additional arguments. |
345 | | /// |
346 | | /// This type requires some external state in order to be |
347 | | /// parsed. |
348 | 0 | pub fn read(data: FontData<'a>, num_glyphs: u32) -> Result<Self, ReadError> { |
349 | 0 | let args = num_glyphs; |
350 | 0 | Self::read_with_args(data, args) |
351 | 0 | } |
352 | | } |
353 | | |
354 | | /// The fields at the start of the table, which are read directly. |
355 | | #[derive(Clone, Copy, bytemuck :: AnyBitPattern)] |
356 | | #[repr(C, packed)] |
357 | | #[doc(hidden)] |
358 | | pub struct SbixFixedHeader { |
359 | | pub version: BigEndian<u16>, |
360 | | pub flags: BigEndian<HeaderFlags>, |
361 | | pub num_strikes: BigEndian<u32>, |
362 | | } |
363 | | |
364 | | #[allow(clippy::absurd_extreme_comparisons)] |
365 | | const _: () = assert!(std::mem::size_of::<SbixFixedHeader>() <= Sbix::MIN_SIZE); |
366 | | |
367 | | /// The [sbix (Standard Bitmap Graphics)](https://docs.microsoft.com/en-us/typography/opentype/spec/sbix) table |
368 | | #[derive(Clone)] |
369 | | pub struct Sbix<'a> { |
370 | | data: TableDataRef<'a, SbixFixedHeader>, |
371 | | num_glyphs: u32, |
372 | | } |
373 | | |
374 | | #[allow(clippy::needless_lifetimes)] |
375 | | impl<'a> Sbix<'a> { |
376 | | pub const MIN_SIZE: usize = (u16::RAW_BYTE_LEN + HeaderFlags::RAW_BYTE_LEN + u32::RAW_BYTE_LEN); |
377 | | basic_table_impls!(impl_the_methods); |
378 | | |
379 | | /// Table version number — set to 1. |
380 | 0 | pub fn version(&self) -> u16 { |
381 | 0 | self.data.header().version.get() |
382 | 0 | } |
383 | | |
384 | | /// Bit 0: Set to 1. |
385 | | /// Bit 1: Draw outlines. |
386 | | /// Bits 2 to 15: reserved (set to 0). |
387 | 0 | pub fn flags(&self) -> HeaderFlags { |
388 | 0 | self.data.header().flags.get() |
389 | 0 | } |
390 | | |
391 | | /// Number of bitmap strikes. |
392 | 32.8k | pub fn num_strikes(&self) -> u32 { |
393 | 32.8k | self.data.header().num_strikes.get() |
394 | 32.8k | } |
395 | | |
396 | | /// Offsets from the beginning of the 'sbix' table to data for each individual bitmap strike. |
397 | 32.8k | pub fn strike_offsets(&self) -> &'a [BigEndian<Offset32>] { |
398 | 32.8k | let range = self.strike_offsets_byte_range(); |
399 | 32.8k | self.offset_data() |
400 | 32.8k | .read_array(range) |
401 | 32.8k | .ok() |
402 | 32.8k | .unwrap_or_default() |
403 | 32.8k | } |
404 | | |
405 | | /// A dynamically resolving wrapper for [`strike_offsets`][Self::strike_offsets]. |
406 | 32.8k | pub fn strikes(&self) -> ArrayOfOffsets<'a, Strike<'a>, Offset32> { |
407 | 32.8k | let data = self.offset_data(); |
408 | 32.8k | let offsets = self.strike_offsets(); |
409 | 32.8k | let args = self.num_glyphs(); |
410 | 32.8k | ArrayOfOffsets::new(offsets, data, args) |
411 | 32.8k | } |
412 | | |
413 | 32.8k | pub(crate) fn num_glyphs(&self) -> u32 { |
414 | 32.8k | self.num_glyphs |
415 | 32.8k | } |
416 | | |
417 | 32.8k | pub fn version_byte_range(&self) -> Range<usize> { |
418 | 32.8k | let start = 0; |
419 | 32.8k | let end = start + u16::RAW_BYTE_LEN; |
420 | 32.8k | start..end |
421 | 32.8k | } |
422 | | |
423 | 32.8k | pub fn flags_byte_range(&self) -> Range<usize> { |
424 | 32.8k | let start = self.version_byte_range().end; |
425 | 32.8k | let end = start + HeaderFlags::RAW_BYTE_LEN; |
426 | 32.8k | start..end |
427 | 32.8k | } |
428 | | |
429 | 32.8k | pub fn num_strikes_byte_range(&self) -> Range<usize> { |
430 | 32.8k | let start = self.flags_byte_range().end; |
431 | 32.8k | let end = start + u32::RAW_BYTE_LEN; |
432 | 32.8k | start..end |
433 | 32.8k | } |
434 | | |
435 | 32.8k | pub fn strike_offsets_byte_range(&self) -> Range<usize> { |
436 | 32.8k | let num_strikes = self.num_strikes(); |
437 | 32.8k | let start = self.num_strikes_byte_range().end; |
438 | 32.8k | let end = |
439 | 32.8k | start + (transforms::to_usize(num_strikes)).saturating_mul(Offset32::RAW_BYTE_LEN); |
440 | 32.8k | start..end |
441 | 32.8k | } |
442 | | } |
443 | | |
444 | | const _: () = assert!(FontData::default_data_long_enough(Sbix::MIN_SIZE)); |
445 | | |
446 | | impl Default for Sbix<'_> { |
447 | 0 | fn default() -> Self { |
448 | | Self { |
449 | 0 | data: TableDataRef::new(FontData::default_table_data().as_bytes()) |
450 | 0 | .unwrap_or_else(|| unreachable!("the default data covers MIN_SIZE")), |
451 | 0 | num_glyphs: Default::default(), |
452 | | } |
453 | 0 | } |
454 | | } |
455 | | |
456 | | impl<'a> MinByteRange<'a> for Strike<'a> { |
457 | 0 | fn min_byte_range(&self) -> Range<usize> { |
458 | 0 | 0..self.glyph_data_offsets_byte_range().end |
459 | 0 | } |
460 | 0 | fn min_table_bytes(&self) -> &'a [u8] { |
461 | 0 | let range = self.min_byte_range(); |
462 | 0 | self.offset_data().as_bytes().get(range).unwrap_or_default() |
463 | 0 | } |
464 | | } |
465 | | |
466 | | impl ReadArgs for Strike<'_> { |
467 | | type Args = u32; |
468 | | } |
469 | | |
470 | | impl<'a> FontRead<'a> for Strike<'a> { |
471 | 2.06k | fn read_with_args(data: FontData<'a>, args: u32) -> Result<Self, ReadError> { |
472 | 2.06k | let num_glyphs = args; |
473 | | |
474 | | #[allow(clippy::absurd_extreme_comparisons)] |
475 | 2.06k | if data.len() < Self::MIN_SIZE { |
476 | 24 | return Err(ReadError::OutOfBounds); |
477 | 2.04k | } |
478 | 2.04k | let Some(data) = TableDataRef::new(data.as_bytes()) else { |
479 | 0 | return Err(ReadError::OutOfBounds); |
480 | | }; |
481 | 2.04k | Ok(Self { data, num_glyphs }) |
482 | 2.06k | } |
483 | | } |
484 | | |
485 | | impl<'a> Strike<'a> { |
486 | | /// A constructor that requires additional arguments. |
487 | | /// |
488 | | /// This type requires some external state in order to be |
489 | | /// parsed. |
490 | 0 | pub fn read(data: FontData<'a>, num_glyphs: u32) -> Result<Self, ReadError> { |
491 | 0 | let args = num_glyphs; |
492 | 0 | Self::read_with_args(data, args) |
493 | 0 | } |
494 | | } |
495 | | |
496 | | /// The fields at the start of the table, which are read directly. |
497 | | #[derive(Clone, Copy, bytemuck :: AnyBitPattern)] |
498 | | #[repr(C, packed)] |
499 | | #[doc(hidden)] |
500 | | pub struct StrikeFixedHeader { |
501 | | pub ppem: BigEndian<u16>, |
502 | | pub ppi: BigEndian<u16>, |
503 | | } |
504 | | |
505 | | #[allow(clippy::absurd_extreme_comparisons)] |
506 | | const _: () = assert!(std::mem::size_of::<StrikeFixedHeader>() <= Strike::MIN_SIZE); |
507 | | |
508 | | /// [Strike](https://learn.microsoft.com/en-us/typography/opentype/spec/sbix#strikes) header table |
509 | | #[derive(Clone)] |
510 | | pub struct Strike<'a> { |
511 | | data: TableDataRef<'a, StrikeFixedHeader>, |
512 | | num_glyphs: u32, |
513 | | } |
514 | | |
515 | | #[allow(clippy::needless_lifetimes)] |
516 | | impl<'a> Strike<'a> { |
517 | | pub const MIN_SIZE: usize = (u16::RAW_BYTE_LEN + u16::RAW_BYTE_LEN); |
518 | | basic_table_impls!(impl_the_methods); |
519 | | |
520 | | /// The PPEM size for which this strike was designed. |
521 | 1.79k | pub fn ppem(&self) -> u16 { |
522 | 1.79k | self.data.header().ppem.get() |
523 | 1.79k | } |
524 | | |
525 | | /// The device pixel density (in PPI) for which this strike was designed. (E.g., 96 PPI, 192 PPI.) |
526 | 0 | pub fn ppi(&self) -> u16 { |
527 | 0 | self.data.header().ppi.get() |
528 | 0 | } |
529 | | |
530 | | /// Offset from the beginning of the strike data header to bitmap data for an individual glyph ID. |
531 | 247 | pub fn glyph_data_offsets(&self) -> &'a [BigEndian<u32>] { |
532 | 247 | let range = self.glyph_data_offsets_byte_range(); |
533 | 247 | self.offset_data() |
534 | 247 | .read_array(range) |
535 | 247 | .ok() |
536 | 247 | .unwrap_or_default() |
537 | 247 | } |
538 | | |
539 | 247 | pub(crate) fn num_glyphs(&self) -> u32 { |
540 | 247 | self.num_glyphs |
541 | 247 | } |
542 | | |
543 | 247 | pub fn ppem_byte_range(&self) -> Range<usize> { |
544 | 247 | let start = 0; |
545 | 247 | let end = start + u16::RAW_BYTE_LEN; |
546 | 247 | start..end |
547 | 247 | } |
548 | | |
549 | 247 | pub fn ppi_byte_range(&self) -> Range<usize> { |
550 | 247 | let start = self.ppem_byte_range().end; |
551 | 247 | let end = start + u16::RAW_BYTE_LEN; |
552 | 247 | start..end |
553 | 247 | } |
554 | | |
555 | 247 | pub fn glyph_data_offsets_byte_range(&self) -> Range<usize> { |
556 | 247 | let num_glyphs = self.num_glyphs(); |
557 | 247 | let start = self.ppi_byte_range().end; |
558 | 247 | let end = start + (transforms::add(num_glyphs, 1_usize)).saturating_mul(u32::RAW_BYTE_LEN); |
559 | 247 | start..end |
560 | 247 | } |
561 | | } |
562 | | |
563 | | const _: () = assert!(FontData::default_data_long_enough(Strike::MIN_SIZE)); |
564 | | |
565 | | impl Default for Strike<'_> { |
566 | 0 | fn default() -> Self { |
567 | | Self { |
568 | 0 | data: TableDataRef::new(FontData::default_table_data().as_bytes()) |
569 | 0 | .unwrap_or_else(|| unreachable!("the default data covers MIN_SIZE")), |
570 | 0 | num_glyphs: Default::default(), |
571 | | } |
572 | 0 | } |
573 | | } |
574 | | |
575 | | impl<'a> MinByteRange<'a> for GlyphData<'a> { |
576 | 0 | fn min_byte_range(&self) -> Range<usize> { |
577 | 0 | 0..self.data_byte_range().end |
578 | 0 | } |
579 | 0 | fn min_table_bytes(&self) -> &'a [u8] { |
580 | 0 | let range = self.min_byte_range(); |
581 | 0 | self.offset_data().as_bytes().get(range).unwrap_or_default() |
582 | 0 | } |
583 | | } |
584 | | |
585 | | impl ReadArgs for GlyphData<'_> { |
586 | | type Args = (); |
587 | | } |
588 | | |
589 | | impl<'a> FontRead<'a> for GlyphData<'a> { |
590 | 11 | fn read_with_args(data: FontData<'a>, _: ()) -> Result<Self, ReadError> { |
591 | | #[allow(clippy::absurd_extreme_comparisons)] |
592 | 11 | if data.len() < Self::MIN_SIZE { |
593 | 6 | return Err(ReadError::OutOfBounds); |
594 | 5 | } |
595 | 5 | let Some(data) = TableDataRef::new(data.as_bytes()) else { |
596 | 0 | return Err(ReadError::OutOfBounds); |
597 | | }; |
598 | 5 | Ok(Self { data }) |
599 | 11 | } |
600 | | } |
601 | | |
602 | | /// The fields at the start of the table, which are read directly. |
603 | | #[derive(Clone, Copy, bytemuck :: AnyBitPattern)] |
604 | | #[repr(C, packed)] |
605 | | #[doc(hidden)] |
606 | | pub struct GlyphDataFixedHeader { |
607 | | pub origin_offset_x: BigEndian<i16>, |
608 | | pub origin_offset_y: BigEndian<i16>, |
609 | | pub graphic_type: BigEndian<Tag>, |
610 | | } |
611 | | |
612 | | #[allow(clippy::absurd_extreme_comparisons)] |
613 | | const _: () = assert!(std::mem::size_of::<GlyphDataFixedHeader>() <= GlyphData::MIN_SIZE); |
614 | | |
615 | | /// [Glyph data](https://learn.microsoft.com/en-us/typography/opentype/spec/sbix#glyph-data) table |
616 | | #[derive(Clone)] |
617 | | pub struct GlyphData<'a> { |
618 | | data: TableDataRef<'a, GlyphDataFixedHeader>, |
619 | | } |
620 | | |
621 | | #[allow(clippy::needless_lifetimes)] |
622 | | impl<'a> GlyphData<'a> { |
623 | | pub const MIN_SIZE: usize = (i16::RAW_BYTE_LEN + i16::RAW_BYTE_LEN + Tag::RAW_BYTE_LEN); |
624 | | basic_table_impls!(impl_the_methods); |
625 | | |
626 | | /// The horizontal (x-axis) position of the left edge of the bitmap graphic in relation to the glyph design space origin. |
627 | 0 | pub fn origin_offset_x(&self) -> i16 { |
628 | 0 | self.data.header().origin_offset_x.get() |
629 | 0 | } |
630 | | |
631 | | /// The vertical (y-axis) position of the bottom edge of the bitmap graphic in relation to the glyph design space origin. |
632 | 0 | pub fn origin_offset_y(&self) -> i16 { |
633 | 0 | self.data.header().origin_offset_y.get() |
634 | 0 | } |
635 | | |
636 | | /// Indicates the format of the embedded graphic data: one of 'jpg ', 'png ' or 'tiff', or the special format 'dupe'. |
637 | 5 | pub fn graphic_type(&self) -> Tag { |
638 | 5 | self.data.header().graphic_type.get() |
639 | 5 | } |
640 | | |
641 | | /// The actual embedded graphic data. The total length is inferred from sequential entries in the glyphDataOffsets array and the fixed size (8 bytes) of the preceding fields. |
642 | 0 | pub fn data(&self) -> &'a [u8] { |
643 | 0 | let range = self.data_byte_range(); |
644 | 0 | self.offset_data() |
645 | 0 | .read_array(range) |
646 | 0 | .ok() |
647 | 0 | .unwrap_or_default() |
648 | 0 | } |
649 | | |
650 | 0 | pub fn origin_offset_x_byte_range(&self) -> Range<usize> { |
651 | 0 | let start = 0; |
652 | 0 | let end = start + i16::RAW_BYTE_LEN; |
653 | 0 | start..end |
654 | 0 | } |
655 | | |
656 | 0 | pub fn origin_offset_y_byte_range(&self) -> Range<usize> { |
657 | 0 | let start = self.origin_offset_x_byte_range().end; |
658 | 0 | let end = start + i16::RAW_BYTE_LEN; |
659 | 0 | start..end |
660 | 0 | } |
661 | | |
662 | 0 | pub fn graphic_type_byte_range(&self) -> Range<usize> { |
663 | 0 | let start = self.origin_offset_y_byte_range().end; |
664 | 0 | let end = start + Tag::RAW_BYTE_LEN; |
665 | 0 | start..end |
666 | 0 | } |
667 | | |
668 | 0 | pub fn data_byte_range(&self) -> Range<usize> { |
669 | 0 | let start = self.graphic_type_byte_range().end; |
670 | 0 | let end = start |
671 | 0 | + self.offset_data().len().saturating_sub(start) / u8::RAW_BYTE_LEN * u8::RAW_BYTE_LEN; |
672 | 0 | start..end |
673 | 0 | } |
674 | | } |
675 | | |
676 | | const _: () = assert!(FontData::default_data_long_enough(GlyphData::MIN_SIZE)); |
677 | | |
678 | | impl Default for GlyphData<'_> { |
679 | 0 | fn default() -> Self { |
680 | | Self { |
681 | 0 | data: TableDataRef::new(FontData::default_table_data().as_bytes()) |
682 | 0 | .unwrap_or_else(|| unreachable!("the default data covers MIN_SIZE")), |
683 | | } |
684 | 0 | } |
685 | | } |