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-rw-r--r--vendor/tiff/src/encoder/colortype.rs245
-rw-r--r--vendor/tiff/src/encoder/compression/deflate.rs83
-rw-r--r--vendor/tiff/src/encoder/compression/lzw.rs47
-rw-r--r--vendor/tiff/src/encoder/compression/mod.rs60
-rw-r--r--vendor/tiff/src/encoder/compression/packbits.rs214
-rw-r--r--vendor/tiff/src/encoder/compression/uncompressed.rs37
-rw-r--r--vendor/tiff/src/encoder/mod.rs681
-rw-r--r--vendor/tiff/src/encoder/tiff_value.rs523
-rw-r--r--vendor/tiff/src/encoder/writer.rs188
9 files changed, 0 insertions, 2078 deletions
diff --git a/vendor/tiff/src/encoder/colortype.rs b/vendor/tiff/src/encoder/colortype.rs
deleted file mode 100644
index 1946daf..0000000
--- a/vendor/tiff/src/encoder/colortype.rs
+++ /dev/null
@@ -1,245 +0,0 @@
-use crate::tags::{PhotometricInterpretation, SampleFormat};
-
-/// Trait for different colortypes that can be encoded.
-pub trait ColorType {
- /// The type of each sample of this colortype
- type Inner: super::TiffValue;
- /// The value of the tiff tag `PhotometricInterpretation`
- const TIFF_VALUE: PhotometricInterpretation;
- /// The value of the tiff tag `BitsPerSample`
- const BITS_PER_SAMPLE: &'static [u16];
- /// The value of the tiff tag `SampleFormat`
- const SAMPLE_FORMAT: &'static [SampleFormat];
-}
-
-pub struct Gray8;
-impl ColorType for Gray8 {
- type Inner = u8;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::BlackIsZero;
- const BITS_PER_SAMPLE: &'static [u16] = &[8];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint];
-}
-
-pub struct GrayI8;
-impl ColorType for GrayI8 {
- type Inner = i8;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::BlackIsZero;
- const BITS_PER_SAMPLE: &'static [u16] = &[8];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Int];
-}
-
-pub struct Gray16;
-impl ColorType for Gray16 {
- type Inner = u16;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::BlackIsZero;
- const BITS_PER_SAMPLE: &'static [u16] = &[16];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint];
-}
-
-pub struct GrayI16;
-impl ColorType for GrayI16 {
- type Inner = i16;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::BlackIsZero;
- const BITS_PER_SAMPLE: &'static [u16] = &[16];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Int];
-}
-
-pub struct Gray32;
-impl ColorType for Gray32 {
- type Inner = u32;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::BlackIsZero;
- const BITS_PER_SAMPLE: &'static [u16] = &[32];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint];
-}
-
-pub struct GrayI32;
-impl ColorType for GrayI32 {
- type Inner = i32;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::BlackIsZero;
- const BITS_PER_SAMPLE: &'static [u16] = &[32];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Int];
-}
-
-pub struct Gray32Float;
-impl ColorType for Gray32Float {
- type Inner = f32;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::BlackIsZero;
- const BITS_PER_SAMPLE: &'static [u16] = &[32];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::IEEEFP];
-}
-
-pub struct Gray64;
-impl ColorType for Gray64 {
- type Inner = u64;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::BlackIsZero;
- const BITS_PER_SAMPLE: &'static [u16] = &[64];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint];
-}
-
-pub struct GrayI64;
-impl ColorType for GrayI64 {
- type Inner = i64;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::BlackIsZero;
- const BITS_PER_SAMPLE: &'static [u16] = &[64];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Int];
-}
-
-pub struct Gray64Float;
-impl ColorType for Gray64Float {
- type Inner = f64;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::BlackIsZero;
- const BITS_PER_SAMPLE: &'static [u16] = &[64];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::IEEEFP];
-}
-
-pub struct RGB8;
-impl ColorType for RGB8 {
- type Inner = u8;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::RGB;
- const BITS_PER_SAMPLE: &'static [u16] = &[8, 8, 8];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint; 3];
-}
-
-pub struct RGB16;
-impl ColorType for RGB16 {
- type Inner = u16;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::RGB;
- const BITS_PER_SAMPLE: &'static [u16] = &[16, 16, 16];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint; 3];
-}
-
-pub struct RGB32;
-impl ColorType for RGB32 {
- type Inner = u32;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::RGB;
- const BITS_PER_SAMPLE: &'static [u16] = &[32, 32, 32];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint; 3];
-}
-
-pub struct RGB32Float;
-impl ColorType for RGB32Float {
- type Inner = f32;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::RGB;
- const BITS_PER_SAMPLE: &'static [u16] = &[32, 32, 32];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::IEEEFP; 3];
-}
-
-pub struct RGB64;
-impl ColorType for RGB64 {
- type Inner = u64;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::RGB;
- const BITS_PER_SAMPLE: &'static [u16] = &[64, 64, 64];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint; 3];
-}
-
-pub struct RGB64Float;
-impl ColorType for RGB64Float {
- type Inner = f64;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::RGB;
- const BITS_PER_SAMPLE: &'static [u16] = &[64, 64, 64];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::IEEEFP; 3];
-}
-
-pub struct RGBA8;
-impl ColorType for RGBA8 {
- type Inner = u8;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::RGB;
- const BITS_PER_SAMPLE: &'static [u16] = &[8, 8, 8, 8];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint; 4];
-}
-
-pub struct RGBA16;
-impl ColorType for RGBA16 {
- type Inner = u16;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::RGB;
- const BITS_PER_SAMPLE: &'static [u16] = &[16, 16, 16, 16];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint; 4];
-}
-
-pub struct RGBA32;
-impl ColorType for RGBA32 {
- type Inner = u32;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::RGB;
- const BITS_PER_SAMPLE: &'static [u16] = &[32, 32, 32, 32];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint; 4];
-}
-
-pub struct RGBA32Float;
-impl ColorType for RGBA32Float {
- type Inner = f32;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::RGB;
- const BITS_PER_SAMPLE: &'static [u16] = &[32, 32, 32, 32];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::IEEEFP; 4];
-}
-
-pub struct RGBA64;
-impl ColorType for RGBA64 {
- type Inner = u64;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::RGB;
- const BITS_PER_SAMPLE: &'static [u16] = &[64, 64, 64, 64];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint; 4];
-}
-
-pub struct RGBA64Float;
-impl ColorType for RGBA64Float {
- type Inner = f64;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::RGB;
- const BITS_PER_SAMPLE: &'static [u16] = &[64, 64, 64, 64];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::IEEEFP; 4];
-}
-
-pub struct CMYK8;
-impl ColorType for CMYK8 {
- type Inner = u8;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::CMYK;
- const BITS_PER_SAMPLE: &'static [u16] = &[8, 8, 8, 8];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint; 4];
-}
-
-pub struct CMYK16;
-impl ColorType for CMYK16 {
- type Inner = u16;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::CMYK;
- const BITS_PER_SAMPLE: &'static [u16] = &[16, 16, 16, 16];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint; 4];
-}
-
-pub struct CMYK32;
-impl ColorType for CMYK32 {
- type Inner = u32;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::CMYK;
- const BITS_PER_SAMPLE: &'static [u16] = &[32, 32, 32, 32];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint; 4];
-}
-
-pub struct CMYK32Float;
-impl ColorType for CMYK32Float {
- type Inner = f32;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::CMYK;
- const BITS_PER_SAMPLE: &'static [u16] = &[32, 32, 32, 32];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::IEEEFP; 4];
-}
-
-pub struct CMYK64;
-impl ColorType for CMYK64 {
- type Inner = u64;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::CMYK;
- const BITS_PER_SAMPLE: &'static [u16] = &[64, 64, 64, 64];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint; 4];
-}
-
-pub struct CMYK64Float;
-impl ColorType for CMYK64Float {
- type Inner = f64;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::CMYK;
- const BITS_PER_SAMPLE: &'static [u16] = &[64, 64, 64, 64];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::IEEEFP; 4];
-}
-
-pub struct YCbCr8;
-impl ColorType for YCbCr8 {
- type Inner = u8;
- const TIFF_VALUE: PhotometricInterpretation = PhotometricInterpretation::YCbCr;
- const BITS_PER_SAMPLE: &'static [u16] = &[8, 8, 8];
- const SAMPLE_FORMAT: &'static [SampleFormat] = &[SampleFormat::Uint; 3];
-}
diff --git a/vendor/tiff/src/encoder/compression/deflate.rs b/vendor/tiff/src/encoder/compression/deflate.rs
deleted file mode 100644
index 5e7a261..0000000
--- a/vendor/tiff/src/encoder/compression/deflate.rs
+++ /dev/null
@@ -1,83 +0,0 @@
-use crate::{encoder::compression::*, tags::CompressionMethod};
-use flate2::{write::ZlibEncoder, Compression as FlateCompression};
-use std::io::Write;
-
-/// The Deflate algorithm used to compress image data in TIFF files.
-#[derive(Debug, Clone, Copy)]
-pub struct Deflate {
- level: FlateCompression,
-}
-
-/// The level of compression used by the Deflate algorithm.
-/// It allows trading compression ratio for compression speed.
-#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
-#[non_exhaustive]
-pub enum DeflateLevel {
- /// The fastest possible compression mode.
- Fast = 1,
- /// The conserative choice between speed and ratio.
- Balanced = 6,
- /// The best compression available with Deflate.
- Best = 9,
-}
-
-impl Default for DeflateLevel {
- fn default() -> Self {
- DeflateLevel::Balanced
- }
-}
-
-impl Deflate {
- /// Create a new deflate compressor with a specific level of compression.
- pub fn with_level(level: DeflateLevel) -> Self {
- Self {
- level: FlateCompression::new(level as u32),
- }
- }
-}
-
-impl Default for Deflate {
- fn default() -> Self {
- Self::with_level(DeflateLevel::default())
- }
-}
-
-impl Compression for Deflate {
- const COMPRESSION_METHOD: CompressionMethod = CompressionMethod::Deflate;
-
- fn get_algorithm(&self) -> Compressor {
- Compressor::Deflate(self.clone())
- }
-}
-
-impl CompressionAlgorithm for Deflate {
- fn write_to<W: Write>(&mut self, writer: &mut W, bytes: &[u8]) -> Result<u64, io::Error> {
- let mut encoder = ZlibEncoder::new(writer, self.level);
- encoder.write_all(bytes)?;
- encoder.try_finish()?;
- Ok(encoder.total_out())
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
- use crate::encoder::compression::tests::TEST_DATA;
- use std::io::Cursor;
-
- #[test]
- fn test_deflate() {
- const EXPECTED_COMPRESSED_DATA: [u8; 64] = [
- 0x78, 0x9C, 0x15, 0xC7, 0xD1, 0x0D, 0x80, 0x20, 0x0C, 0x04, 0xD0, 0x55, 0x6E, 0x02,
- 0xA7, 0x71, 0x81, 0xA6, 0x41, 0xDA, 0x28, 0xD4, 0xF4, 0xD0, 0xF9, 0x81, 0xE4, 0xFD,
- 0xBC, 0xD3, 0x9C, 0x58, 0x04, 0x1C, 0xE9, 0xBD, 0xE2, 0x8A, 0x84, 0x5A, 0xD1, 0x7B,
- 0xE7, 0x97, 0xF4, 0xF8, 0x08, 0x8D, 0xF6, 0x66, 0x21, 0x3D, 0x3A, 0xE4, 0xA9, 0x91,
- 0x3E, 0xAC, 0xF1, 0x98, 0xB9, 0x70, 0x17, 0x13,
- ];
-
- let mut compressed_data = Vec::<u8>::new();
- let mut writer = Cursor::new(&mut compressed_data);
- Deflate::default().write_to(&mut writer, TEST_DATA).unwrap();
- assert_eq!(EXPECTED_COMPRESSED_DATA, compressed_data.as_slice());
- }
-}
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());
- }
-}
diff --git a/vendor/tiff/src/encoder/compression/mod.rs b/vendor/tiff/src/encoder/compression/mod.rs
deleted file mode 100644
index 04baef3..0000000
--- a/vendor/tiff/src/encoder/compression/mod.rs
+++ /dev/null
@@ -1,60 +0,0 @@
-use crate::tags::CompressionMethod;
-use std::io::{self, Write};
-
-mod deflate;
-mod lzw;
-mod packbits;
-mod uncompressed;
-
-pub use self::deflate::{Deflate, DeflateLevel};
-pub use self::lzw::Lzw;
-pub use self::packbits::Packbits;
-pub use self::uncompressed::Uncompressed;
-
-/// An algorithm used for compression
-pub trait CompressionAlgorithm {
- /// The algorithm writes data directly into the writer.
- /// It returns the total number of bytes written.
- fn write_to<W: Write>(&mut self, writer: &mut W, bytes: &[u8]) -> Result<u64, io::Error>;
-}
-
-/// An algorithm used for compression with associated enums and optional configurations.
-pub trait Compression: CompressionAlgorithm {
- /// The corresponding tag to the algorithm.
- const COMPRESSION_METHOD: CompressionMethod;
-
- /// Method to optain a type that can store each variant of comression algorithm.
- fn get_algorithm(&self) -> Compressor;
-}
-
-/// An enum to store each compression algorithm.
-pub enum Compressor {
- Uncompressed(Uncompressed),
- Lzw(Lzw),
- Deflate(Deflate),
- Packbits(Packbits),
-}
-
-impl Default for Compressor {
- /// The default compression strategy does not apply any compression.
- fn default() -> Self {
- Compressor::Uncompressed(Uncompressed::default())
- }
-}
-
-impl CompressionAlgorithm for Compressor {
- fn write_to<W: Write>(&mut self, writer: &mut W, bytes: &[u8]) -> Result<u64, io::Error> {
- match self {
- Compressor::Uncompressed(algorithm) => algorithm.write_to(writer, bytes),
- Compressor::Lzw(algorithm) => algorithm.write_to(writer, bytes),
- Compressor::Deflate(algorithm) => algorithm.write_to(writer, bytes),
- Compressor::Packbits(algorithm) => algorithm.write_to(writer, bytes),
- }
- }
-}
-
-#[cfg(test)]
-mod tests {
- pub const TEST_DATA: &'static [u8] =
- b"This is a string for checking various compression algorithms.";
-}
diff --git a/vendor/tiff/src/encoder/compression/packbits.rs b/vendor/tiff/src/encoder/compression/packbits.rs
deleted file mode 100644
index 7ba3833..0000000
--- a/vendor/tiff/src/encoder/compression/packbits.rs
+++ /dev/null
@@ -1,214 +0,0 @@
-use crate::{encoder::compression::*, tags::CompressionMethod};
-use std::io::{BufWriter, Error, ErrorKind, Write};
-
-/// Compressor that uses the Packbits[^note] algorithm to compress bytes.
-///
-/// [^note]: PackBits is often ineffective on continuous tone images,
-/// including many grayscale images. In such cases, it is better
-/// to leave the image uncompressed.
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
-pub struct Packbits;
-
-impl Compression for Packbits {
- const COMPRESSION_METHOD: CompressionMethod = CompressionMethod::PackBits;
-
- fn get_algorithm(&self) -> Compressor {
- Compressor::Packbits(*self)
- }
-}
-
-impl CompressionAlgorithm for Packbits {
- fn write_to<W: Write>(&mut self, writer: &mut W, bytes: &[u8]) -> Result<u64, io::Error> {
- // Inspired by https://github.com/skirridsystems/packbits
-
- const MIN_REPT: u8 = 3; // Minimum run to compress between differ blocks
- const MAX_BYTES: u8 = 128; // Maximum number of bytes that can be encoded in a header byte
-
- // Encoding for header byte based on number of bytes represented.
- fn encode_diff(n: u8) -> u8 {
- n - 1
- }
- fn encode_rept(n: u8) -> u8 {
- let var = 256 - (n - 1) as u16;
- var as u8
- }
-
- fn write_u8<W: Write>(writer: &mut W, byte: u8) -> Result<u64, Error> {
- writer.write(&[byte]).map(|byte_count| byte_count as u64)
- }
-
- let mut bufwriter = BufWriter::new(writer);
- let mut bytes_written = 0u64; // The number of bytes written into the writer
- let mut offset: Option<u64> = None; // The index of the first byte written into the writer
-
- let mut src_index: usize = 0; // Index of the current byte
- let mut src_count = bytes.len(); //The number of bytes remaining to be compressed
-
- let mut in_run = false; // Indication whether counting of similar bytes is performed
- let mut run_index = 0u8; // Distance into pending bytes that a run starts
-
- let mut bytes_pending = 0u8; // Bytes looked at but not yet output
- let mut pending_index = 0usize; // Index of the first pending byte
-
- let mut curr_byte: u8; // Byte currently being considered
- let mut last_byte: u8; // Previous byte
-
- // Need at least one byte to compress
- if src_count == 0 {
- return Err(Error::new(ErrorKind::WriteZero, "write zero"));
- }
-
- // Prime compressor with first character.
- last_byte = bytes[src_index];
- src_index += 1;
- bytes_pending += 1;
-
- while src_count - 1 != 0 {
- src_count -= 1;
- curr_byte = bytes[src_index];
- src_index += 1;
- bytes_pending += 1;
-
- if in_run {
- if (curr_byte != last_byte) || (bytes_pending > MAX_BYTES) {
- offset.get_or_insert(write_u8(&mut bufwriter, encode_rept(bytes_pending - 1))?);
- write_u8(&mut bufwriter, last_byte)?;
- bytes_written += 2;
-
- bytes_pending = 1;
- pending_index = src_index - 1;
- run_index = 0;
- in_run = false;
- }
- } else {
- if bytes_pending > MAX_BYTES {
- // We have as much differing data as we can output in one chunk.
- // Output MAX_BYTES leaving one byte.
- offset.get_or_insert(write_u8(&mut bufwriter, encode_diff(MAX_BYTES))?);
- bufwriter.write(&bytes[pending_index..pending_index + MAX_BYTES as usize])?;
- bytes_written += 1 + MAX_BYTES as u64;
-
- pending_index += MAX_BYTES as usize;
- bytes_pending -= MAX_BYTES;
- run_index = bytes_pending - 1; // A run could start here
- } else if curr_byte == last_byte {
- if (bytes_pending - run_index >= MIN_REPT) || (run_index == 0) {
- // This is a worthwhile run
- if run_index != 0 {
- // Flush differing data out of input buffer
- offset.get_or_insert(write_u8(&mut bufwriter, encode_diff(run_index))?);
- bufwriter
- .write(&bytes[pending_index..pending_index + run_index as usize])?;
- bytes_written += 1 + run_index as u64;
- }
- bytes_pending -= run_index; // Length of run
- in_run = true;
- }
- } else {
- run_index = bytes_pending - 1; // A run could start here
- }
- }
- last_byte = curr_byte;
- }
-
- // Output the remainder
- if in_run {
- bytes_written += 2;
- offset.get_or_insert(write_u8(&mut bufwriter, encode_rept(bytes_pending))?);
- write_u8(&mut bufwriter, last_byte)?;
- } else {
- bytes_written += 1 + bytes_pending as u64;
- offset.get_or_insert(write_u8(&mut bufwriter, encode_diff(bytes_pending))?);
- bufwriter.write(&bytes[pending_index..pending_index + bytes_pending as usize])?;
- }
-
- bufwriter.flush()?;
- Ok(bytes_written)
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
- use crate::encoder::compression::tests::TEST_DATA;
- use std::io::Cursor;
-
- #[test]
- fn test_packbits_single_byte() {
- // compress single byte
- const UNCOMPRESSED_DATA: [u8; 1] = [0x3F];
- const EXPECTED_COMPRESSED_DATA: [u8; 2] = [0x00, 0x3F];
-
- let mut compressed_data = Vec::<u8>::new();
- let mut writer = Cursor::new(&mut compressed_data);
- Packbits::default()
- .write_to(&mut writer, &UNCOMPRESSED_DATA)
- .unwrap();
- assert_eq!(compressed_data, EXPECTED_COMPRESSED_DATA);
- }
-
- #[test]
- fn test_packbits_rept() {
- // compress buffer with repetitive sequence
- const UNCOMPRESSED_DATA: &'static [u8] =
- b"This strrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrring hangs.";
- const EXPECTED_COMPRESSED_DATA: &'static [u8] = b"\x06This st\xD1r\x09ing hangs.";
-
- let mut compressed_data = Vec::<u8>::new();
- let mut writer = Cursor::new(&mut compressed_data);
- Packbits::default()
- .write_to(&mut writer, UNCOMPRESSED_DATA)
- .unwrap();
- assert_eq!(compressed_data, EXPECTED_COMPRESSED_DATA);
- }
-
- #[test]
- fn test_packbits_large_rept_nonrept() {
- // compress buffer with large repetitive and non-repetitive sequence
- let mut data = b"This st".to_vec();
- for _i in 0..158 {
- data.push(b'r');
- }
- data.extend_from_slice(b"ing hangs.");
- for i in 0..158 {
- data.push(i);
- }
-
- const EXPECTED_COMPRESSED_DATA: [u8; 182] = [
- 0x06, 0x54, 0x68, 0x69, 0x73, 0x20, 0x73, 0x74, 0x81, 0x72, 0xE3, 0x72, 0x7F, 0x69,
- 0x6E, 0x67, 0x20, 0x68, 0x61, 0x6E, 0x67, 0x73, 0x2E, 0x00, 0x01, 0x02, 0x03, 0x04,
- 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12,
- 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20,
- 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E,
- 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C,
- 0x3D, 0x3E, 0x3F, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A,
- 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
- 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
- 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74,
- 0x75, 0x27, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, 0x80, 0x81,
- 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F,
- 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D,
- ];
-
- let mut compressed_data = Vec::<u8>::new();
- let mut writer = Cursor::new(&mut compressed_data);
- Packbits::default()
- .write_to(&mut writer, data.as_slice())
- .unwrap();
- assert_eq!(compressed_data, EXPECTED_COMPRESSED_DATA);
- }
-
- #[test]
- fn test_packbits() {
- // compress teststring
- const EXPECTED_COMPRESSED_DATA: &'static [u8] =
- b"\x3CThis is a string for checking various compression algorithms.";
-
- let mut compressed_data = Vec::<u8>::new();
- let mut writer = Cursor::new(&mut compressed_data);
- Packbits::default()
- .write_to(&mut writer, TEST_DATA)
- .unwrap();
- assert_eq!(compressed_data, EXPECTED_COMPRESSED_DATA);
- }
-}
diff --git a/vendor/tiff/src/encoder/compression/uncompressed.rs b/vendor/tiff/src/encoder/compression/uncompressed.rs
deleted file mode 100644
index 900426f..0000000
--- a/vendor/tiff/src/encoder/compression/uncompressed.rs
+++ /dev/null
@@ -1,37 +0,0 @@
-use crate::{encoder::compression::*, tags::CompressionMethod};
-use std::io::Write;
-
-/// The default algorithm which does not compress at all.
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
-pub struct Uncompressed;
-
-impl Compression for Uncompressed {
- const COMPRESSION_METHOD: CompressionMethod = CompressionMethod::None;
-
- fn get_algorithm(&self) -> Compressor {
- Compressor::Uncompressed(*self)
- }
-}
-
-impl CompressionAlgorithm for Uncompressed {
- fn write_to<W: Write>(&mut self, writer: &mut W, bytes: &[u8]) -> Result<u64, io::Error> {
- writer.write(bytes).map(|byte_count| byte_count as u64)
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
- use crate::encoder::compression::tests::TEST_DATA;
- use std::io::Cursor;
-
- #[test]
- fn test_no_compression() {
- let mut compressed_data = Vec::<u8>::new();
- let mut writer = Cursor::new(&mut compressed_data);
- Uncompressed::default()
- .write_to(&mut writer, TEST_DATA)
- .unwrap();
- assert_eq!(TEST_DATA, compressed_data);
- }
-}
diff --git a/vendor/tiff/src/encoder/mod.rs b/vendor/tiff/src/encoder/mod.rs
deleted file mode 100644
index 6e39c93..0000000
--- a/vendor/tiff/src/encoder/mod.rs
+++ /dev/null
@@ -1,681 +0,0 @@
-pub use tiff_value::*;
-
-use std::{
- cmp,
- collections::BTreeMap,
- convert::{TryFrom, TryInto},
- io::{self, Seek, Write},
- marker::PhantomData,
- mem,
- num::TryFromIntError,
-};
-
-use crate::{
- error::TiffResult,
- tags::{CompressionMethod, ResolutionUnit, Tag},
- TiffError, TiffFormatError,
-};
-
-pub mod colortype;
-pub mod compression;
-mod tiff_value;
-mod writer;
-
-use self::colortype::*;
-use self::compression::*;
-use self::writer::*;
-
-/// Encoder for Tiff and BigTiff files.
-///
-/// With this type you can get a `DirectoryEncoder` or a `ImageEncoder`
-/// to encode Tiff/BigTiff ifd directories with images.
-///
-/// See `DirectoryEncoder` and `ImageEncoder`.
-///
-/// # Examples
-/// ```
-/// # extern crate tiff;
-/// # fn main() {
-/// # let mut file = std::io::Cursor::new(Vec::new());
-/// # let image_data = vec![0; 100*100*3];
-/// use tiff::encoder::*;
-///
-/// // create a standard Tiff file
-/// let mut tiff = TiffEncoder::new(&mut file).unwrap();
-/// tiff.write_image::<colortype::RGB8>(100, 100, &image_data).unwrap();
-///
-/// // create a BigTiff file
-/// let mut bigtiff = TiffEncoder::new_big(&mut file).unwrap();
-/// bigtiff.write_image::<colortype::RGB8>(100, 100, &image_data).unwrap();
-///
-/// # }
-/// ```
-pub struct TiffEncoder<W, K: TiffKind = TiffKindStandard> {
- writer: TiffWriter<W>,
- kind: PhantomData<K>,
-}
-
-/// Constructor functions to create standard Tiff files.
-impl<W: Write + Seek> TiffEncoder<W> {
- /// Creates a new encoder for standard Tiff files.
- ///
- /// To create BigTiff files, use [`new_big`][TiffEncoder::new_big] or
- /// [`new_generic`][TiffEncoder::new_generic].
- pub fn new(writer: W) -> TiffResult<TiffEncoder<W, TiffKindStandard>> {
- TiffEncoder::new_generic(writer)
- }
-}
-
-/// Constructor functions to create BigTiff files.
-impl<W: Write + Seek> TiffEncoder<W, TiffKindBig> {
- /// Creates a new encoder for BigTiff files.
- ///
- /// To create standard Tiff files, use [`new`][TiffEncoder::new] or
- /// [`new_generic`][TiffEncoder::new_generic].
- pub fn new_big(writer: W) -> TiffResult<Self> {
- TiffEncoder::new_generic(writer)
- }
-}
-
-/// Generic functions that are available for both Tiff and BigTiff encoders.
-impl<W: Write + Seek, K: TiffKind> TiffEncoder<W, K> {
- /// Creates a new Tiff or BigTiff encoder, inferred from the return type.
- pub fn new_generic(writer: W) -> TiffResult<Self> {
- let mut encoder = TiffEncoder {
- writer: TiffWriter::new(writer),
- kind: PhantomData,
- };
-
- K::write_header(&mut encoder.writer)?;
-
- Ok(encoder)
- }
-
- /// Create a [`DirectoryEncoder`] to encode an ifd directory.
- pub fn new_directory(&mut self) -> TiffResult<DirectoryEncoder<W, K>> {
- DirectoryEncoder::new(&mut self.writer)
- }
-
- /// Create an [`ImageEncoder`] to encode an image one slice at a time.
- pub fn new_image<C: ColorType>(
- &mut self,
- width: u32,
- height: u32,
- ) -> TiffResult<ImageEncoder<W, C, K, Uncompressed>> {
- let encoder = DirectoryEncoder::new(&mut self.writer)?;
- ImageEncoder::new(encoder, width, height)
- }
-
- /// Create an [`ImageEncoder`] to encode an image one slice at a time.
- pub fn new_image_with_compression<C: ColorType, D: Compression>(
- &mut self,
- width: u32,
- height: u32,
- compression: D,
- ) -> TiffResult<ImageEncoder<W, C, K, D>> {
- let encoder = DirectoryEncoder::new(&mut self.writer)?;
- ImageEncoder::with_compression(encoder, width, height, compression)
- }
-
- /// Convenience function to write an entire image from memory.
- pub fn write_image<C: ColorType>(
- &mut self,
- width: u32,
- height: u32,
- data: &[C::Inner],
- ) -> TiffResult<()>
- where
- [C::Inner]: TiffValue,
- {
- let encoder = DirectoryEncoder::new(&mut self.writer)?;
- let image: ImageEncoder<W, C, K> = ImageEncoder::new(encoder, width, height)?;
- image.write_data(data)
- }
-
- /// Convenience function to write an entire image from memory with a given compression.
- pub fn write_image_with_compression<C: ColorType, D: Compression>(
- &mut self,
- width: u32,
- height: u32,
- compression: D,
- data: &[C::Inner],
- ) -> TiffResult<()>
- where
- [C::Inner]: TiffValue,
- {
- let encoder = DirectoryEncoder::new(&mut self.writer)?;
- let image: ImageEncoder<W, C, K, D> =
- ImageEncoder::with_compression(encoder, width, height, compression)?;
- image.write_data(data)
- }
-}
-
-/// Low level interface to encode ifd directories.
-///
-/// You should call `finish` on this when you are finished with it.
-/// Encoding can silently fail while this is dropping.
-pub struct DirectoryEncoder<'a, W: 'a + Write + Seek, K: TiffKind> {
- writer: &'a mut TiffWriter<W>,
- dropped: bool,
- // We use BTreeMap to make sure tags are written in correct order
- ifd_pointer_pos: u64,
- ifd: BTreeMap<u16, DirectoryEntry<K::OffsetType>>,
-}
-
-impl<'a, W: 'a + Write + Seek, K: TiffKind> DirectoryEncoder<'a, W, K> {
- fn new(writer: &'a mut TiffWriter<W>) -> TiffResult<Self> {
- // the previous word is the IFD offset position
- let ifd_pointer_pos = writer.offset() - mem::size_of::<K::OffsetType>() as u64;
- writer.pad_word_boundary()?; // TODO: Do we need to adjust this for BigTiff?
- Ok(DirectoryEncoder {
- writer,
- dropped: false,
- ifd_pointer_pos,
- ifd: BTreeMap::new(),
- })
- }
-
- /// Write a single ifd tag.
- pub fn write_tag<T: TiffValue>(&mut self, tag: Tag, value: T) -> TiffResult<()> {
- let mut bytes = Vec::with_capacity(value.bytes());
- {
- let mut writer = TiffWriter::new(&mut bytes);
- value.write(&mut writer)?;
- }
-
- self.ifd.insert(
- tag.to_u16(),
- DirectoryEntry {
- data_type: <T>::FIELD_TYPE.to_u16(),
- count: value.count().try_into()?,
- data: bytes,
- },
- );
-
- Ok(())
- }
-
- fn write_directory(&mut self) -> TiffResult<u64> {
- // Start by writing out all values
- for &mut DirectoryEntry {
- data: ref mut bytes,
- ..
- } in self.ifd.values_mut()
- {
- let data_bytes = mem::size_of::<K::OffsetType>();
-
- if bytes.len() > data_bytes {
- let offset = self.writer.offset();
- self.writer.write_bytes(bytes)?;
- *bytes = vec![0; data_bytes];
- let mut writer = TiffWriter::new(bytes as &mut [u8]);
- K::write_offset(&mut writer, offset)?;
- } else {
- while bytes.len() < data_bytes {
- bytes.push(0);
- }
- }
- }
-
- let offset = self.writer.offset();
-
- K::write_entry_count(&mut self.writer, self.ifd.len())?;
- for (
- tag,
- &DirectoryEntry {
- data_type: ref field_type,
- ref count,
- data: ref offset,
- },
- ) in self.ifd.iter()
- {
- self.writer.write_u16(*tag)?;
- self.writer.write_u16(*field_type)?;
- (*count).write(&mut self.writer)?;
- self.writer.write_bytes(offset)?;
- }
-
- Ok(offset)
- }
-
- /// Write some data to the tiff file, the offset of the data is returned.
- ///
- /// This could be used to write tiff strips.
- pub fn write_data<T: TiffValue>(&mut self, value: T) -> TiffResult<u64> {
- let offset = self.writer.offset();
- value.write(&mut self.writer)?;
- Ok(offset)
- }
-
- /// Provides the number of bytes written by the underlying TiffWriter during the last call.
- fn last_written(&self) -> u64 {
- self.writer.last_written()
- }
-
- fn finish_internal(&mut self) -> TiffResult<()> {
- let ifd_pointer = self.write_directory()?;
- let curr_pos = self.writer.offset();
-
- self.writer.goto_offset(self.ifd_pointer_pos)?;
- K::write_offset(&mut self.writer, ifd_pointer)?;
- self.writer.goto_offset(curr_pos)?;
- K::write_offset(&mut self.writer, 0)?;
-
- self.dropped = true;
-
- Ok(())
- }
-
- /// Write out the ifd directory.
- pub fn finish(mut self) -> TiffResult<()> {
- self.finish_internal()
- }
-}
-
-impl<'a, W: Write + Seek, K: TiffKind> Drop for DirectoryEncoder<'a, W, K> {
- fn drop(&mut self) {
- if !self.dropped {
- let _ = self.finish_internal();
- }
- }
-}
-
-/// Type to encode images strip by strip.
-///
-/// You should call `finish` on this when you are finished with it.
-/// Encoding can silently fail while this is dropping.
-///
-/// # Examples
-/// ```
-/// # extern crate tiff;
-/// # fn main() {
-/// # let mut file = std::io::Cursor::new(Vec::new());
-/// # let image_data = vec![0; 100*100*3];
-/// use tiff::encoder::*;
-/// use tiff::tags::Tag;
-///
-/// let mut tiff = TiffEncoder::new(&mut file).unwrap();
-/// let mut image = tiff.new_image::<colortype::RGB8>(100, 100).unwrap();
-///
-/// // You can encode tags here
-/// image.encoder().write_tag(Tag::Artist, "Image-tiff").unwrap();
-///
-/// // Strip size can be configured before writing data
-/// image.rows_per_strip(2).unwrap();
-///
-/// let mut idx = 0;
-/// while image.next_strip_sample_count() > 0 {
-/// let sample_count = image.next_strip_sample_count() as usize;
-/// image.write_strip(&image_data[idx..idx+sample_count]).unwrap();
-/// idx += sample_count;
-/// }
-/// image.finish().unwrap();
-/// # }
-/// ```
-/// You can also call write_data function wich will encode by strip and finish
-pub struct ImageEncoder<
- 'a,
- W: 'a + Write + Seek,
- C: ColorType,
- K: TiffKind,
- D: Compression = Uncompressed,
-> {
- encoder: DirectoryEncoder<'a, W, K>,
- strip_idx: u64,
- strip_count: u64,
- row_samples: u64,
- width: u32,
- height: u32,
- rows_per_strip: u64,
- strip_offsets: Vec<K::OffsetType>,
- strip_byte_count: Vec<K::OffsetType>,
- dropped: bool,
- compression: D,
- _phantom: ::std::marker::PhantomData<C>,
-}
-
-impl<'a, W: 'a + Write + Seek, T: ColorType, K: TiffKind, D: Compression>
- ImageEncoder<'a, W, T, K, D>
-{
- fn new(encoder: DirectoryEncoder<'a, W, K>, width: u32, height: u32) -> TiffResult<Self>
- where
- D: Default,
- {
- Self::with_compression(encoder, width, height, D::default())
- }
-
- fn with_compression(
- mut encoder: DirectoryEncoder<'a, W, K>,
- width: u32,
- height: u32,
- compression: D,
- ) -> TiffResult<Self> {
- if width == 0 || height == 0 {
- return Err(TiffError::FormatError(TiffFormatError::InvalidDimensions(
- width, height,
- )));
- }
-
- let row_samples = u64::from(width) * u64::try_from(<T>::BITS_PER_SAMPLE.len())?;
- let row_bytes = row_samples * u64::from(<T::Inner>::BYTE_LEN);
-
- // Limit the strip size to prevent potential memory and security issues.
- // Also keep the multiple strip handling 'oiled'
- let rows_per_strip = {
- match D::COMPRESSION_METHOD {
- CompressionMethod::PackBits => 1, // Each row must be packed separately. Do not compress across row boundaries
- _ => (1_000_000 + row_bytes - 1) / row_bytes,
- }
- };
-
- let strip_count = (u64::from(height) + rows_per_strip - 1) / rows_per_strip;
-
- encoder.write_tag(Tag::ImageWidth, width)?;
- encoder.write_tag(Tag::ImageLength, height)?;
- encoder.write_tag(Tag::Compression, D::COMPRESSION_METHOD.to_u16())?;
-
- encoder.write_tag(Tag::BitsPerSample, <T>::BITS_PER_SAMPLE)?;
- let sample_format: Vec<_> = <T>::SAMPLE_FORMAT.iter().map(|s| s.to_u16()).collect();
- encoder.write_tag(Tag::SampleFormat, &sample_format[..])?;
- encoder.write_tag(Tag::PhotometricInterpretation, <T>::TIFF_VALUE.to_u16())?;
-
- encoder.write_tag(Tag::RowsPerStrip, u32::try_from(rows_per_strip)?)?;
-
- encoder.write_tag(
- Tag::SamplesPerPixel,
- u16::try_from(<T>::BITS_PER_SAMPLE.len())?,
- )?;
- encoder.write_tag(Tag::XResolution, Rational { n: 1, d: 1 })?;
- encoder.write_tag(Tag::YResolution, Rational { n: 1, d: 1 })?;
- encoder.write_tag(Tag::ResolutionUnit, ResolutionUnit::None.to_u16())?;
-
- Ok(ImageEncoder {
- encoder,
- strip_count,
- strip_idx: 0,
- row_samples,
- rows_per_strip,
- width,
- height,
- strip_offsets: Vec::new(),
- strip_byte_count: Vec::new(),
- dropped: false,
- compression: compression,
- _phantom: ::std::marker::PhantomData,
- })
- }
-
- /// Number of samples the next strip should have.
- pub fn next_strip_sample_count(&self) -> u64 {
- if self.strip_idx >= self.strip_count {
- return 0;
- }
-
- let raw_start_row = self.strip_idx * self.rows_per_strip;
- let start_row = cmp::min(u64::from(self.height), raw_start_row);
- let end_row = cmp::min(u64::from(self.height), raw_start_row + self.rows_per_strip);
-
- (end_row - start_row) * self.row_samples
- }
-
- /// Write a single strip.
- pub fn write_strip(&mut self, value: &[T::Inner]) -> TiffResult<()>
- where
- [T::Inner]: TiffValue,
- {
- let samples = self.next_strip_sample_count();
- if u64::try_from(value.len())? != samples {
- return Err(io::Error::new(
- io::ErrorKind::InvalidData,
- "Slice is wrong size for strip",
- )
- .into());
- }
-
- // Write the (possible compressed) data to the encoder.
- let offset = self.encoder.write_data(value)?;
- let byte_count = self.encoder.last_written() as usize;
-
- self.strip_offsets.push(K::convert_offset(offset)?);
- self.strip_byte_count.push(byte_count.try_into()?);
-
- self.strip_idx += 1;
- Ok(())
- }
-
- /// Write strips from data
- pub fn write_data(mut self, data: &[T::Inner]) -> TiffResult<()>
- where
- [T::Inner]: TiffValue,
- {
- let num_pix = usize::try_from(self.width)?
- .checked_mul(usize::try_from(self.height)?)
- .ok_or_else(|| {
- io::Error::new(
- io::ErrorKind::InvalidInput,
- "Image width * height exceeds usize",
- )
- })?;
- if data.len() < num_pix {
- return Err(io::Error::new(
- io::ErrorKind::InvalidData,
- "Input data slice is undersized for provided dimensions",
- )
- .into());
- }
-
- self.encoder
- .writer
- .set_compression(self.compression.get_algorithm());
-
- let mut idx = 0;
- while self.next_strip_sample_count() > 0 {
- let sample_count = usize::try_from(self.next_strip_sample_count())?;
- self.write_strip(&data[idx..idx + sample_count])?;
- idx += sample_count;
- }
-
- self.encoder.writer.reset_compression();
- self.finish()?;
- Ok(())
- }
-
- /// Set image resolution
- pub fn resolution(&mut self, unit: ResolutionUnit, value: Rational) {
- self.encoder
- .write_tag(Tag::ResolutionUnit, unit.to_u16())
- .unwrap();
- self.encoder
- .write_tag(Tag::XResolution, value.clone())
- .unwrap();
- self.encoder.write_tag(Tag::YResolution, value).unwrap();
- }
-
- /// Set image resolution unit
- pub fn resolution_unit(&mut self, unit: ResolutionUnit) {
- self.encoder
- .write_tag(Tag::ResolutionUnit, unit.to_u16())
- .unwrap();
- }
-
- /// Set image x-resolution
- pub fn x_resolution(&mut self, value: Rational) {
- self.encoder.write_tag(Tag::XResolution, value).unwrap();
- }
-
- /// Set image y-resolution
- pub fn y_resolution(&mut self, value: Rational) {
- self.encoder.write_tag(Tag::YResolution, value).unwrap();
- }
-
- /// Set image number of lines per strip
- ///
- /// This function needs to be called before any calls to `write_data` or
- /// `write_strip` and will return an error otherwise.
- pub fn rows_per_strip(&mut self, value: u32) -> TiffResult<()> {
- if self.strip_idx != 0 {
- return Err(io::Error::new(
- io::ErrorKind::InvalidInput,
- "Cannot change strip size after data was written",
- )
- .into());
- }
- // Write tag as 32 bits
- self.encoder.write_tag(Tag::RowsPerStrip, value)?;
-
- let value: u64 = value as u64;
- self.strip_count = (self.height as u64 + value - 1) / value;
- self.rows_per_strip = value;
-
- Ok(())
- }
-
- fn finish_internal(&mut self) -> TiffResult<()> {
- self.encoder
- .write_tag(Tag::StripOffsets, K::convert_slice(&self.strip_offsets))?;
- self.encoder.write_tag(
- Tag::StripByteCounts,
- K::convert_slice(&self.strip_byte_count),
- )?;
- self.dropped = true;
-
- self.encoder.finish_internal()
- }
-
- /// Get a reference of the underlying `DirectoryEncoder`
- pub fn encoder(&mut self) -> &mut DirectoryEncoder<'a, W, K> {
- &mut self.encoder
- }
-
- /// Write out image and ifd directory.
- pub fn finish(mut self) -> TiffResult<()> {
- self.finish_internal()
- }
-}
-
-impl<'a, W: Write + Seek, C: ColorType, K: TiffKind, D: Compression> Drop
- for ImageEncoder<'a, W, C, K, D>
-{
- fn drop(&mut self) {
- if !self.dropped {
- let _ = self.finish_internal();
- }
- }
-}
-
-struct DirectoryEntry<S> {
- data_type: u16,
- count: S,
- data: Vec<u8>,
-}
-
-/// Trait to abstract over Tiff/BigTiff differences.
-///
-/// Implemented for [`TiffKindStandard`] and [`TiffKindBig`].
-pub trait TiffKind {
- /// The type of offset fields, `u32` for normal Tiff, `u64` for BigTiff.
- type OffsetType: TryFrom<usize, Error = TryFromIntError> + Into<u64> + TiffValue;
-
- /// Needed for the `convert_slice` method.
- type OffsetArrayType: ?Sized + TiffValue;
-
- /// Write the (Big)Tiff header.
- fn write_header<W: Write>(writer: &mut TiffWriter<W>) -> TiffResult<()>;
-
- /// Convert a file offset to `Self::OffsetType`.
- ///
- /// This returns an error for normal Tiff if the offset is larger than `u32::MAX`.
- fn convert_offset(offset: u64) -> TiffResult<Self::OffsetType>;
-
- /// Write an offset value to the given writer.
- ///
- /// Like `convert_offset`, this errors if `offset > u32::MAX` for normal Tiff.
- fn write_offset<W: Write>(writer: &mut TiffWriter<W>, offset: u64) -> TiffResult<()>;
-
- /// Write the IFD entry count field with the given `count` value.
- ///
- /// The entry count field is an `u16` for normal Tiff and `u64` for BigTiff. Errors
- /// if the given `usize` is larger than the representable values.
- fn write_entry_count<W: Write>(writer: &mut TiffWriter<W>, count: usize) -> TiffResult<()>;
-
- /// Internal helper method for satisfying Rust's type checker.
- ///
- /// The `TiffValue` trait is implemented for both primitive values (e.g. `u8`, `u32`) and
- /// slices of primitive values (e.g. `[u8]`, `[u32]`). However, this is not represented in
- /// the type system, so there is no guarantee that that for all `T: TiffValue` there is also
- /// an implementation of `TiffValue` for `[T]`. This method works around that problem by
- /// providing a conversion from `[T]` to some value that implements `TiffValue`, thereby
- /// making all slices of `OffsetType` usable with `write_tag` and similar methods.
- ///
- /// Implementations of this trait should always set `OffsetArrayType` to `[OffsetType]`.
- fn convert_slice(slice: &[Self::OffsetType]) -> &Self::OffsetArrayType;
-}
-
-/// Create a standard Tiff file.
-pub struct TiffKindStandard;
-
-impl TiffKind for TiffKindStandard {
- type OffsetType = u32;
- type OffsetArrayType = [u32];
-
- fn write_header<W: Write>(writer: &mut TiffWriter<W>) -> TiffResult<()> {
- write_tiff_header(writer)?;
- // blank the IFD offset location
- writer.write_u32(0)?;
-
- Ok(())
- }
-
- fn convert_offset(offset: u64) -> TiffResult<Self::OffsetType> {
- Ok(Self::OffsetType::try_from(offset)?)
- }
-
- fn write_offset<W: Write>(writer: &mut TiffWriter<W>, offset: u64) -> TiffResult<()> {
- writer.write_u32(u32::try_from(offset)?)?;
- Ok(())
- }
-
- fn write_entry_count<W: Write>(writer: &mut TiffWriter<W>, count: usize) -> TiffResult<()> {
- writer.write_u16(u16::try_from(count)?)?;
-
- Ok(())
- }
-
- fn convert_slice(slice: &[Self::OffsetType]) -> &Self::OffsetArrayType {
- slice
- }
-}
-
-/// Create a BigTiff file.
-pub struct TiffKindBig;
-
-impl TiffKind for TiffKindBig {
- type OffsetType = u64;
- type OffsetArrayType = [u64];
-
- fn write_header<W: Write>(writer: &mut TiffWriter<W>) -> TiffResult<()> {
- write_bigtiff_header(writer)?;
- // blank the IFD offset location
- writer.write_u64(0)?;
-
- Ok(())
- }
-
- fn convert_offset(offset: u64) -> TiffResult<Self::OffsetType> {
- Ok(offset)
- }
-
- fn write_offset<W: Write>(writer: &mut TiffWriter<W>, offset: u64) -> TiffResult<()> {
- writer.write_u64(offset)?;
- Ok(())
- }
-
- fn write_entry_count<W: Write>(writer: &mut TiffWriter<W>, count: usize) -> TiffResult<()> {
- writer.write_u64(u64::try_from(count)?)?;
- Ok(())
- }
-
- fn convert_slice(slice: &[Self::OffsetType]) -> &Self::OffsetArrayType {
- slice
- }
-}
diff --git a/vendor/tiff/src/encoder/tiff_value.rs b/vendor/tiff/src/encoder/tiff_value.rs
deleted file mode 100644
index 43653f4..0000000
--- a/vendor/tiff/src/encoder/tiff_value.rs
+++ /dev/null
@@ -1,523 +0,0 @@
-use std::{borrow::Cow, io::Write, slice::from_ref};
-
-use crate::{bytecast, tags::Type, TiffError, TiffFormatError, TiffResult};
-
-use super::writer::TiffWriter;
-
-/// Trait for types that can be encoded in a tiff file
-pub trait TiffValue {
- const BYTE_LEN: u8;
- const FIELD_TYPE: Type;
- fn count(&self) -> usize;
- fn bytes(&self) -> usize {
- self.count() * usize::from(Self::BYTE_LEN)
- }
-
- /// Access this value as an contiguous sequence of bytes.
- /// If their is no trivial representation, allocate it on the heap.
- fn data(&self) -> Cow<[u8]>;
-
- /// Write this value to a TiffWriter.
- /// While the default implementation will work in all cases, it may require unnecessary allocations.
- /// The written bytes of any custom implementation MUST be the same as yielded by `self.data()`.
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- writer.write_bytes(&self.data())?;
- Ok(())
- }
-}
-
-impl TiffValue for [u8] {
- const BYTE_LEN: u8 = 1;
- const FIELD_TYPE: Type = Type::BYTE;
-
- fn count(&self) -> usize {
- self.len()
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(self)
- }
-}
-
-impl TiffValue for [i8] {
- const BYTE_LEN: u8 = 1;
- const FIELD_TYPE: Type = Type::SBYTE;
-
- fn count(&self) -> usize {
- self.len()
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::i8_as_ne_bytes(self))
- }
-}
-
-impl TiffValue for [u16] {
- const BYTE_LEN: u8 = 2;
- const FIELD_TYPE: Type = Type::SHORT;
-
- fn count(&self) -> usize {
- self.len()
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::u16_as_ne_bytes(self))
- }
-}
-
-impl TiffValue for [i16] {
- const BYTE_LEN: u8 = 2;
- const FIELD_TYPE: Type = Type::SSHORT;
-
- fn count(&self) -> usize {
- self.len()
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::i16_as_ne_bytes(self))
- }
-}
-
-impl TiffValue for [u32] {
- const BYTE_LEN: u8 = 4;
- const FIELD_TYPE: Type = Type::LONG;
-
- fn count(&self) -> usize {
- self.len()
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::u32_as_ne_bytes(self))
- }
-}
-
-impl TiffValue for [i32] {
- const BYTE_LEN: u8 = 4;
- const FIELD_TYPE: Type = Type::SLONG;
-
- fn count(&self) -> usize {
- self.len()
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::i32_as_ne_bytes(self))
- }
-}
-
-impl TiffValue for [u64] {
- const BYTE_LEN: u8 = 8;
- const FIELD_TYPE: Type = Type::LONG8;
-
- fn count(&self) -> usize {
- self.len()
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::u64_as_ne_bytes(self))
- }
-}
-
-impl TiffValue for [i64] {
- const BYTE_LEN: u8 = 8;
- const FIELD_TYPE: Type = Type::SLONG8;
-
- fn count(&self) -> usize {
- self.len()
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::i64_as_ne_bytes(self))
- }
-}
-
-impl TiffValue for [f32] {
- const BYTE_LEN: u8 = 4;
- const FIELD_TYPE: Type = Type::FLOAT;
-
- fn count(&self) -> usize {
- self.len()
- }
-
- fn data(&self) -> Cow<[u8]> {
- // We write using native endian so this should be safe
- Cow::Borrowed(bytecast::f32_as_ne_bytes(self))
- }
-}
-
-impl TiffValue for [f64] {
- const BYTE_LEN: u8 = 8;
- const FIELD_TYPE: Type = Type::DOUBLE;
-
- fn count(&self) -> usize {
- self.len()
- }
-
- fn data(&self) -> Cow<[u8]> {
- // We write using native endian so this should be safe
- Cow::Borrowed(bytecast::f64_as_ne_bytes(self))
- }
-}
-
-impl TiffValue for u8 {
- const BYTE_LEN: u8 = 1;
- const FIELD_TYPE: Type = Type::BYTE;
-
- fn count(&self) -> usize {
- 1
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- writer.write_u8(*self)?;
- Ok(())
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(from_ref(self))
- }
-}
-
-impl TiffValue for i8 {
- const BYTE_LEN: u8 = 1;
- const FIELD_TYPE: Type = Type::SBYTE;
-
- fn count(&self) -> usize {
- 1
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- writer.write_i8(*self)?;
- Ok(())
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::i8_as_ne_bytes(from_ref(self)))
- }
-}
-
-impl TiffValue for u16 {
- const BYTE_LEN: u8 = 2;
- const FIELD_TYPE: Type = Type::SHORT;
-
- fn count(&self) -> usize {
- 1
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- writer.write_u16(*self)?;
- Ok(())
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::u16_as_ne_bytes(from_ref(self)))
- }
-}
-
-impl TiffValue for i16 {
- const BYTE_LEN: u8 = 2;
- const FIELD_TYPE: Type = Type::SSHORT;
-
- fn count(&self) -> usize {
- 1
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- writer.write_i16(*self)?;
- Ok(())
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::i16_as_ne_bytes(from_ref(self)))
- }
-}
-
-impl TiffValue for u32 {
- const BYTE_LEN: u8 = 4;
- const FIELD_TYPE: Type = Type::LONG;
-
- fn count(&self) -> usize {
- 1
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- writer.write_u32(*self)?;
- Ok(())
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::u32_as_ne_bytes(from_ref(self)))
- }
-}
-
-impl TiffValue for i32 {
- const BYTE_LEN: u8 = 4;
- const FIELD_TYPE: Type = Type::SLONG;
-
- fn count(&self) -> usize {
- 1
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- writer.write_i32(*self)?;
- Ok(())
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::i32_as_ne_bytes(from_ref(self)))
- }
-}
-
-impl TiffValue for u64 {
- const BYTE_LEN: u8 = 8;
- const FIELD_TYPE: Type = Type::LONG8;
-
- fn count(&self) -> usize {
- 1
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- writer.write_u64(*self)?;
- Ok(())
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::u64_as_ne_bytes(from_ref(self)))
- }
-}
-
-impl TiffValue for i64 {
- const BYTE_LEN: u8 = 8;
- const FIELD_TYPE: Type = Type::SLONG8;
-
- fn count(&self) -> usize {
- 1
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- writer.write_i64(*self)?;
- Ok(())
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::i64_as_ne_bytes(from_ref(self)))
- }
-}
-
-impl TiffValue for f32 {
- const BYTE_LEN: u8 = 4;
- const FIELD_TYPE: Type = Type::FLOAT;
-
- fn count(&self) -> usize {
- 1
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- writer.write_f32(*self)?;
- Ok(())
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::f32_as_ne_bytes(from_ref(self)))
- }
-}
-
-impl TiffValue for f64 {
- const BYTE_LEN: u8 = 8;
- const FIELD_TYPE: Type = Type::DOUBLE;
-
- fn count(&self) -> usize {
- 1
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- writer.write_f64(*self)?;
- Ok(())
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::f64_as_ne_bytes(from_ref(self)))
- }
-}
-
-impl TiffValue for Ifd {
- const BYTE_LEN: u8 = 4;
- const FIELD_TYPE: Type = Type::IFD;
-
- fn count(&self) -> usize {
- 1
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- writer.write_u32(self.0)?;
- Ok(())
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::u32_as_ne_bytes(from_ref(&self.0)))
- }
-}
-
-impl TiffValue for Ifd8 {
- const BYTE_LEN: u8 = 8;
- const FIELD_TYPE: Type = Type::IFD8;
-
- fn count(&self) -> usize {
- 1
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- writer.write_u64(self.0)?;
- Ok(())
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Borrowed(bytecast::u64_as_ne_bytes(from_ref(&self.0)))
- }
-}
-
-impl TiffValue for Rational {
- const BYTE_LEN: u8 = 8;
- const FIELD_TYPE: Type = Type::RATIONAL;
-
- fn count(&self) -> usize {
- 1
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- writer.write_u32(self.n)?;
- writer.write_u32(self.d)?;
- Ok(())
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Owned({
- let first_dword = bytecast::u32_as_ne_bytes(from_ref(&self.n));
- let second_dword = bytecast::u32_as_ne_bytes(from_ref(&self.d));
- [first_dword, second_dword].concat()
- })
- }
-}
-
-impl TiffValue for SRational {
- const BYTE_LEN: u8 = 8;
- const FIELD_TYPE: Type = Type::SRATIONAL;
-
- fn count(&self) -> usize {
- 1
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- writer.write_i32(self.n)?;
- writer.write_i32(self.d)?;
- Ok(())
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Owned({
- let first_dword = bytecast::i32_as_ne_bytes(from_ref(&self.n));
- let second_dword = bytecast::i32_as_ne_bytes(from_ref(&self.d));
- [first_dword, second_dword].concat()
- })
- }
-}
-
-impl TiffValue for str {
- const BYTE_LEN: u8 = 1;
- const FIELD_TYPE: Type = Type::ASCII;
-
- fn count(&self) -> usize {
- self.len() + 1
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- if self.is_ascii() && !self.bytes().any(|b| b == 0) {
- writer.write_bytes(self.as_bytes())?;
- writer.write_u8(0)?;
- Ok(())
- } else {
- Err(TiffError::FormatError(TiffFormatError::InvalidTag))
- }
- }
-
- fn data(&self) -> Cow<[u8]> {
- Cow::Owned({
- if self.is_ascii() && !self.bytes().any(|b| b == 0) {
- let bytes: &[u8] = self.as_bytes();
- [bytes, &[0]].concat()
- } else {
- vec![]
- }
- })
- }
-}
-
-impl<'a, T: TiffValue + ?Sized> TiffValue for &'a T {
- const BYTE_LEN: u8 = T::BYTE_LEN;
- const FIELD_TYPE: Type = T::FIELD_TYPE;
-
- fn count(&self) -> usize {
- (*self).count()
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- (*self).write(writer)
- }
-
- fn data(&self) -> Cow<[u8]> {
- T::data(self)
- }
-}
-
-macro_rules! impl_tiff_value_for_contiguous_sequence {
- ($inner_type:ty; $bytes:expr; $field_type:expr) => {
- impl $crate::encoder::TiffValue for [$inner_type] {
- const BYTE_LEN: u8 = $bytes;
- const FIELD_TYPE: Type = $field_type;
-
- fn count(&self) -> usize {
- self.len()
- }
-
- fn write<W: Write>(&self, writer: &mut TiffWriter<W>) -> TiffResult<()> {
- for x in self {
- x.write(writer)?;
- }
- Ok(())
- }
-
- fn data(&self) -> Cow<[u8]> {
- let mut buf: Vec<u8> = Vec::with_capacity(Self::BYTE_LEN as usize * self.len());
- for x in self {
- buf.extend_from_slice(&x.data());
- }
- Cow::Owned(buf)
- }
- }
- };
-}
-
-impl_tiff_value_for_contiguous_sequence!(Ifd; 4; Type::IFD);
-impl_tiff_value_for_contiguous_sequence!(Ifd8; 8; Type::IFD8);
-impl_tiff_value_for_contiguous_sequence!(Rational; 8; Type::RATIONAL);
-impl_tiff_value_for_contiguous_sequence!(SRational; 8; Type::SRATIONAL);
-
-/// Type to represent tiff values of type `IFD`
-#[derive(Clone)]
-pub struct Ifd(pub u32);
-
-/// Type to represent tiff values of type `IFD8`
-#[derive(Clone)]
-pub struct Ifd8(pub u64);
-
-/// Type to represent tiff values of type `RATIONAL`
-#[derive(Clone)]
-pub struct Rational {
- pub n: u32,
- pub d: u32,
-}
-
-/// Type to represent tiff values of type `SRATIONAL`
-#[derive(Clone)]
-pub struct SRational {
- pub n: i32,
- pub d: i32,
-}
diff --git a/vendor/tiff/src/encoder/writer.rs b/vendor/tiff/src/encoder/writer.rs
deleted file mode 100644
index c5139e9..0000000
--- a/vendor/tiff/src/encoder/writer.rs
+++ /dev/null
@@ -1,188 +0,0 @@
-use crate::encoder::compression::*;
-use crate::error::TiffResult;
-use std::io::{self, Seek, SeekFrom, Write};
-
-pub fn write_tiff_header<W: Write>(writer: &mut TiffWriter<W>) -> TiffResult<()> {
- #[cfg(target_endian = "little")]
- let boi: u8 = 0x49;
- #[cfg(not(target_endian = "little"))]
- let boi: u8 = 0x4d;
-
- writer.writer.write_all(&[boi, boi])?;
- writer.writer.write_all(&42u16.to_ne_bytes())?;
- writer.offset += 4;
-
- Ok(())
-}
-
-/// Writes a BigTiff header, excluding the IFD offset field.
-///
-/// Writes the byte order, version number, offset byte size, and zero constant fields. Does
-// _not_ write the offset to the first IFD, this should be done by the caller.
-pub fn write_bigtiff_header<W: Write>(writer: &mut TiffWriter<W>) -> TiffResult<()> {
- #[cfg(target_endian = "little")]
- let boi: u8 = 0x49;
- #[cfg(not(target_endian = "little"))]
- let boi: u8 = 0x4d;
-
- // byte order indication
- writer.writer.write_all(&[boi, boi])?;
- // version number
- writer.writer.write_all(&43u16.to_ne_bytes())?;
- // bytesize of offsets (pointer size)
- writer.writer.write_all(&8u16.to_ne_bytes())?;
- // always 0
- writer.writer.write_all(&0u16.to_ne_bytes())?;
-
- // we wrote 8 bytes, so set the internal offset accordingly
- writer.offset += 8;
-
- Ok(())
-}
-
-pub struct TiffWriter<W> {
- writer: W,
- offset: u64,
- byte_count: u64,
- compressor: Compressor,
-}
-
-impl<W: Write> TiffWriter<W> {
- pub fn new(writer: W) -> Self {
- Self {
- writer,
- offset: 0,
- byte_count: 0,
- compressor: Compressor::default(),
- }
- }
-
- pub fn set_compression(&mut self, compressor: Compressor) {
- self.compressor = compressor;
- }
-
- pub fn reset_compression(&mut self) {
- self.compressor = Compressor::default();
- }
-
- pub fn offset(&self) -> u64 {
- self.offset
- }
-
- pub fn last_written(&self) -> u64 {
- self.byte_count
- }
-
- pub fn write_bytes(&mut self, bytes: &[u8]) -> Result<(), io::Error> {
- self.byte_count = self.compressor.write_to(&mut self.writer, bytes)?;
- self.offset += self.byte_count;
- Ok(())
- }
-
- pub fn write_u8(&mut self, n: u8) -> Result<(), io::Error> {
- self.byte_count = self
- .compressor
- .write_to(&mut self.writer, &n.to_ne_bytes())?;
- self.offset += self.byte_count;
- Ok(())
- }
-
- pub fn write_i8(&mut self, n: i8) -> Result<(), io::Error> {
- self.byte_count = self
- .compressor
- .write_to(&mut self.writer, &n.to_ne_bytes())?;
- self.offset += self.byte_count;
- Ok(())
- }
-
- pub fn write_u16(&mut self, n: u16) -> Result<(), io::Error> {
- self.byte_count = self
- .compressor
- .write_to(&mut self.writer, &n.to_ne_bytes())?;
- self.offset += self.byte_count;
-
- Ok(())
- }
-
- pub fn write_i16(&mut self, n: i16) -> Result<(), io::Error> {
- self.byte_count = self
- .compressor
- .write_to(&mut self.writer, &n.to_ne_bytes())?;
- self.offset += self.byte_count;
-
- Ok(())
- }
-
- pub fn write_u32(&mut self, n: u32) -> Result<(), io::Error> {
- self.byte_count = self
- .compressor
- .write_to(&mut self.writer, &n.to_ne_bytes())?;
- self.offset += self.byte_count;
-
- Ok(())
- }
-
- pub fn write_i32(&mut self, n: i32) -> Result<(), io::Error> {
- self.byte_count = self
- .compressor
- .write_to(&mut self.writer, &n.to_ne_bytes())?;
- self.offset += self.byte_count;
-
- Ok(())
- }
-
- pub fn write_u64(&mut self, n: u64) -> Result<(), io::Error> {
- self.byte_count = self
- .compressor
- .write_to(&mut self.writer, &n.to_ne_bytes())?;
- self.offset += self.byte_count;
-
- Ok(())
- }
-
- pub fn write_i64(&mut self, n: i64) -> Result<(), io::Error> {
- self.byte_count = self
- .compressor
- .write_to(&mut self.writer, &n.to_ne_bytes())?;
- self.offset += self.byte_count;
-
- Ok(())
- }
-
- pub fn write_f32(&mut self, n: f32) -> Result<(), io::Error> {
- self.byte_count = self
- .compressor
- .write_to(&mut self.writer, &u32::to_ne_bytes(n.to_bits()))?;
- self.offset += self.byte_count;
-
- Ok(())
- }
-
- pub fn write_f64(&mut self, n: f64) -> Result<(), io::Error> {
- self.byte_count = self
- .compressor
- .write_to(&mut self.writer, &u64::to_ne_bytes(n.to_bits()))?;
- self.offset += self.byte_count;
-
- Ok(())
- }
-
- pub fn pad_word_boundary(&mut self) -> Result<(), io::Error> {
- if self.offset % 4 != 0 {
- let padding = [0, 0, 0];
- let padd_len = 4 - (self.offset % 4);
- self.writer.write_all(&padding[..padd_len as usize])?;
- self.offset += padd_len;
- }
-
- Ok(())
- }
-}
-
-impl<W: Seek> TiffWriter<W> {
- pub fn goto_offset(&mut self, offset: u64) -> Result<(), io::Error> {
- self.offset = offset;
- self.writer.seek(SeekFrom::Start(offset as u64))?;
- Ok(())
- }
-}
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