tiff_reader/
error.rs

1use thiserror::Error;
2use tiff_core::Compression;
3
4pub type Result<T> = std::result::Result<T, Error>;
5
6#[derive(Debug, Error)]
7pub enum Error {
8    #[error("I/O error reading {1}: {0}")]
9    Io(#[source] std::io::Error, String),
10
11    #[error("not a TIFF file: invalid magic bytes")]
12    InvalidMagic,
13
14    #[error("unsupported TIFF version: {0}")]
15    UnsupportedVersion(u16),
16
17    #[error("IFD index {0} not found")]
18    IfdNotFound(usize),
19
20    #[error("tag {0} not found in IFD")]
21    TagNotFound(u16),
22
23    #[error("unexpected tag type {actual} for tag {tag}, expected {expected}")]
24    UnexpectedTagType {
25        tag: u16,
26        expected: &'static str,
27        actual: u16,
28    },
29
30    #[error(
31        "unsupported compression: {name} ({0})",
32        name = unsupported_compression_name(*.0)
33    )]
34    UnsupportedCompression(u16),
35
36    #[error("unsupported predictor: {0}")]
37    UnsupportedPredictor(u16),
38
39    #[error("unsupported planar configuration: {0}")]
40    UnsupportedPlanarConfiguration(u16),
41
42    #[error("unsupported bits per sample: {0}")]
43    UnsupportedBitsPerSample(u16),
44
45    #[error("unsupported sample format: {0}")]
46    UnsupportedSampleFormat(u16),
47
48    #[error("decompression failed for strip/tile {index}: {reason}")]
49    DecompressionFailed { index: usize, reason: String },
50
51    #[error("data truncated at offset {offset}: need {needed} bytes, have {available}")]
52    Truncated {
53        offset: u64,
54        needed: u64,
55        available: u64,
56    },
57
58    #[error("offset {offset} with length {length} is out of bounds for a {data_len}-byte file")]
59    OffsetOutOfBounds {
60        offset: u64,
61        length: u64,
62        data_len: u64,
63    },
64
65    #[error("invalid TIFF tag {tag}: {reason}")]
66    InvalidTagValue { tag: u16, reason: String },
67
68    #[error("invalid image layout: {0}")]
69    InvalidImageLayout(String),
70
71    #[error("type mismatch: expected {expected}, found {actual}")]
72    TypeMismatch {
73        expected: &'static str,
74        actual: String,
75    },
76
77    #[error("{0}")]
78    Other(String),
79}
80
81fn unsupported_compression_name(code: u16) -> &'static str {
82    Compression::from_code(code)
83        .map(Compression::name)
84        .unwrap_or("unknown")
85}
tiff_reader/error.rs

tiff_reader/
error.rs
