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authorValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
committerValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
commita990de90fe41456a23e58bd087d2f107d321f3a1 (patch)
tree15afc392522a9e85dc3332235e311b7d39352ea9 /vendor/tiff/src/encoder/compression/lzw.rs
parent3d48cd3f81164bbfc1a755dc1d4a9a02f98c8ddd (diff)
downloadfparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.tar.xz
fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.zip
Deleted vendor folder
Diffstat (limited to 'vendor/tiff/src/encoder/compression/lzw.rs')
-rw-r--r--vendor/tiff/src/encoder/compression/lzw.rs47
1 files changed, 0 insertions, 47 deletions
diff --git a/vendor/tiff/src/encoder/compression/lzw.rs b/vendor/tiff/src/encoder/compression/lzw.rs
deleted file mode 100644
index 0e0f2aa..0000000
--- a/vendor/tiff/src/encoder/compression/lzw.rs
+++ /dev/null
@@ -1,47 +0,0 @@
-use crate::{encoder::compression::*, tags::CompressionMethod};
-use std::io::Write;
-use weezl::encode::Encoder as LZWEncoder;
-
-/// The LZW algorithm used to compress image data in TIFF files.
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
-pub struct Lzw;
-
-impl Compression for Lzw {
- const COMPRESSION_METHOD: CompressionMethod = CompressionMethod::LZW;
-
- fn get_algorithm(&self) -> Compressor {
- Compressor::Lzw(*self)
- }
-}
-
-impl CompressionAlgorithm for Lzw {
- fn write_to<W: Write>(&mut self, writer: &mut W, bytes: &[u8]) -> Result<u64, io::Error> {
- let mut encoder = LZWEncoder::with_tiff_size_switch(weezl::BitOrder::Msb, 8);
- let result = encoder.into_stream(writer).encode_all(bytes);
- let byte_count = result.bytes_written as u64;
- result.status.map(|_| byte_count)
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
- use crate::encoder::compression::tests::TEST_DATA;
- use std::io::Cursor;
-
- #[test]
- fn test_lzw() {
- const EXPECTED_COMPRESSED_DATA: [u8; 63] = [
- 0x80, 0x15, 0x0D, 0x06, 0x93, 0x98, 0x82, 0x08, 0x20, 0x30, 0x88, 0x0E, 0x67, 0x43,
- 0x91, 0xA4, 0xDC, 0x67, 0x10, 0x19, 0x8D, 0xE7, 0x21, 0x01, 0x8C, 0xD0, 0x65, 0x31,
- 0x9A, 0xE1, 0xD1, 0x03, 0xB1, 0x86, 0x1A, 0x6F, 0x3A, 0xC1, 0x4C, 0x66, 0xF3, 0x69,
- 0xC0, 0xE4, 0x65, 0x39, 0x9C, 0xCD, 0x26, 0xF3, 0x74, 0x20, 0xD8, 0x67, 0x89, 0x9A,
- 0x4E, 0x86, 0x83, 0x69, 0xCC, 0x5D, 0x01,
- ];
-
- let mut compressed_data = Vec::<u8>::new();
- let mut writer = Cursor::new(&mut compressed_data);
- Lzw::default().write_to(&mut writer, TEST_DATA).unwrap();
- assert_eq!(EXPECTED_COMPRESSED_DATA, compressed_data.as_slice());
- }
-}