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-rw-r--r--vendor/tiff/src/bytecast.rs34
-rw-r--r--vendor/tiff/src/decoder/ifd.rs670
-rw-r--r--vendor/tiff/src/decoder/image.rs601
-rw-r--r--vendor/tiff/src/decoder/mod.rs1176
-rw-r--r--vendor/tiff/src/decoder/stream.rs435
-rw-r--r--vendor/tiff/src/decoder/tag_reader.rs45
-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
-rw-r--r--vendor/tiff/src/error.rs369
-rw-r--r--vendor/tiff/src/lib.rs43
-rw-r--r--vendor/tiff/src/tags.rs234
18 files changed, 0 insertions, 5685 deletions
diff --git a/vendor/tiff/src/bytecast.rs b/vendor/tiff/src/bytecast.rs
deleted file mode 100644
index 6e9d762..0000000
--- a/vendor/tiff/src/bytecast.rs
+++ /dev/null
@@ -1,34 +0,0 @@
-//! Trivial, internal byte transmutation.
-//!
-//! A dependency like bytemuck would give us extra assurance of the safety but overall would not
-//! reduce the amount of total unsafety. We don't use it in the interface where the traits would
-//! really become useful.
-//!
-//! SAFETY: These are benign casts as we apply them to fixed size integer types only. All of them
-//! are naturally aligned, valid for all bit patterns and their alignment is surely at most their
-//! size (we assert the latter fact since it is 'implementation defined' if following the letter of
-//! the unsafe code guidelines).
-//!
-//! TODO: Would like to use std-lib here.
-use std::{mem, slice};
-
-macro_rules! integral_slice_as_bytes{($int:ty, $const:ident $(,$mut:ident)*) => {
- pub(crate) fn $const(slice: &[$int]) -> &[u8] {
- assert!(mem::align_of::<$int>() <= mem::size_of::<$int>());
- unsafe { slice::from_raw_parts(slice.as_ptr() as *const u8, mem::size_of_val(slice)) }
- }
- $(pub(crate) fn $mut(slice: &mut [$int]) -> &mut [u8] {
- assert!(mem::align_of::<$int>() <= mem::size_of::<$int>());
- unsafe { slice::from_raw_parts_mut(slice.as_mut_ptr() as *mut u8, mem::size_of_val(slice)) }
- })*
-}}
-
-integral_slice_as_bytes!(i8, i8_as_ne_bytes, i8_as_ne_mut_bytes);
-integral_slice_as_bytes!(u16, u16_as_ne_bytes, u16_as_ne_mut_bytes);
-integral_slice_as_bytes!(i16, i16_as_ne_bytes, i16_as_ne_mut_bytes);
-integral_slice_as_bytes!(u32, u32_as_ne_bytes, u32_as_ne_mut_bytes);
-integral_slice_as_bytes!(i32, i32_as_ne_bytes, i32_as_ne_mut_bytes);
-integral_slice_as_bytes!(u64, u64_as_ne_bytes, u64_as_ne_mut_bytes);
-integral_slice_as_bytes!(i64, i64_as_ne_bytes, i64_as_ne_mut_bytes);
-integral_slice_as_bytes!(f32, f32_as_ne_bytes, f32_as_ne_mut_bytes);
-integral_slice_as_bytes!(f64, f64_as_ne_bytes, f64_as_ne_mut_bytes);
diff --git a/vendor/tiff/src/decoder/ifd.rs b/vendor/tiff/src/decoder/ifd.rs
deleted file mode 100644
index b05513d..0000000
--- a/vendor/tiff/src/decoder/ifd.rs
+++ /dev/null
@@ -1,670 +0,0 @@
-//! Function for reading TIFF tags
-
-use std::collections::HashMap;
-use std::convert::{TryFrom, TryInto};
-use std::io::{self, Read, Seek};
-use std::mem;
-use std::str;
-
-use super::stream::{ByteOrder, EndianReader, SmartReader};
-use crate::tags::{Tag, Type};
-use crate::{TiffError, TiffFormatError, TiffResult};
-
-use self::Value::{
- Ascii, Byte, Double, Float, Ifd, IfdBig, List, Rational, RationalBig, SRational, SRationalBig,
- Short, Signed, SignedBig, Unsigned, UnsignedBig,
-};
-
-#[allow(unused_qualifications)]
-#[derive(Debug, Clone, PartialEq)]
-#[non_exhaustive]
-pub enum Value {
- Byte(u8),
- Short(u16),
- Signed(i32),
- SignedBig(i64),
- Unsigned(u32),
- UnsignedBig(u64),
- Float(f32),
- Double(f64),
- List(Vec<Value>),
- Rational(u32, u32),
- RationalBig(u64, u64),
- SRational(i32, i32),
- SRationalBig(i64, i64),
- Ascii(String),
- Ifd(u32),
- IfdBig(u64),
-}
-
-impl Value {
- pub fn into_u8(self) -> TiffResult<u8> {
- match self {
- Byte(val) => Ok(val),
- val => Err(TiffError::FormatError(TiffFormatError::ByteExpected(val))),
- }
- }
-
- pub fn into_u16(self) -> TiffResult<u16> {
- match self {
- Short(val) => Ok(val),
- Unsigned(val) => Ok(u16::try_from(val)?),
- UnsignedBig(val) => Ok(u16::try_from(val)?),
- val => Err(TiffError::FormatError(
- TiffFormatError::UnsignedIntegerExpected(val),
- )),
- }
- }
-
- pub fn into_u32(self) -> TiffResult<u32> {
- match self {
- Short(val) => Ok(val.into()),
- Unsigned(val) => Ok(val),
- UnsignedBig(val) => Ok(u32::try_from(val)?),
- Ifd(val) => Ok(val),
- IfdBig(val) => Ok(u32::try_from(val)?),
- val => Err(TiffError::FormatError(
- TiffFormatError::UnsignedIntegerExpected(val),
- )),
- }
- }
-
- pub fn into_i32(self) -> TiffResult<i32> {
- match self {
- Signed(val) => Ok(val),
- SignedBig(val) => Ok(i32::try_from(val)?),
- val => Err(TiffError::FormatError(
- TiffFormatError::SignedIntegerExpected(val),
- )),
- }
- }
-
- pub fn into_u64(self) -> TiffResult<u64> {
- match self {
- Short(val) => Ok(val.into()),
- Unsigned(val) => Ok(val.into()),
- UnsignedBig(val) => Ok(val),
- Ifd(val) => Ok(val.into()),
- IfdBig(val) => Ok(val),
- val => Err(TiffError::FormatError(
- TiffFormatError::UnsignedIntegerExpected(val),
- )),
- }
- }
-
- pub fn into_i64(self) -> TiffResult<i64> {
- match self {
- Signed(val) => Ok(val.into()),
- SignedBig(val) => Ok(val),
- val => Err(TiffError::FormatError(
- TiffFormatError::SignedIntegerExpected(val),
- )),
- }
- }
-
- pub fn into_f32(self) -> TiffResult<f32> {
- match self {
- Float(val) => Ok(val),
- val => Err(TiffError::FormatError(
- TiffFormatError::SignedIntegerExpected(val),
- )),
- }
- }
-
- pub fn into_f64(self) -> TiffResult<f64> {
- match self {
- Double(val) => Ok(val),
- val => Err(TiffError::FormatError(
- TiffFormatError::SignedIntegerExpected(val),
- )),
- }
- }
-
- pub fn into_string(self) -> TiffResult<String> {
- match self {
- Ascii(val) => Ok(val),
- val => Err(TiffError::FormatError(
- TiffFormatError::SignedIntegerExpected(val),
- )),
- }
- }
-
- pub fn into_u32_vec(self) -> TiffResult<Vec<u32>> {
- match self {
- List(vec) => {
- let mut new_vec = Vec::with_capacity(vec.len());
- for v in vec {
- new_vec.push(v.into_u32()?)
- }
- Ok(new_vec)
- }
- Unsigned(val) => Ok(vec![val]),
- UnsignedBig(val) => Ok(vec![u32::try_from(val)?]),
- Rational(numerator, denominator) => Ok(vec![numerator, denominator]),
- RationalBig(numerator, denominator) => {
- Ok(vec![u32::try_from(numerator)?, u32::try_from(denominator)?])
- }
- Ifd(val) => Ok(vec![val]),
- IfdBig(val) => Ok(vec![u32::try_from(val)?]),
- Ascii(val) => Ok(val.chars().map(u32::from).collect()),
- val => Err(TiffError::FormatError(
- TiffFormatError::UnsignedIntegerExpected(val),
- )),
- }
- }
-
- pub fn into_u8_vec(self) -> TiffResult<Vec<u8>> {
- match self {
- List(vec) => {
- let mut new_vec = Vec::with_capacity(vec.len());
- for v in vec {
- new_vec.push(v.into_u8()?)
- }
- Ok(new_vec)
- }
- Byte(val) => Ok(vec![val]),
-
- val => Err(TiffError::FormatError(
- TiffFormatError::UnsignedIntegerExpected(val),
- )),
- }
- }
-
- pub fn into_u16_vec(self) -> TiffResult<Vec<u16>> {
- match self {
- List(vec) => {
- let mut new_vec = Vec::with_capacity(vec.len());
- for v in vec {
- new_vec.push(v.into_u16()?)
- }
- Ok(new_vec)
- }
- Short(val) => Ok(vec![val]),
- val => Err(TiffError::FormatError(
- TiffFormatError::UnsignedIntegerExpected(val),
- )),
- }
- }
-
- pub fn into_i32_vec(self) -> TiffResult<Vec<i32>> {
- match self {
- List(vec) => {
- let mut new_vec = Vec::with_capacity(vec.len());
- for v in vec {
- match v {
- SRational(numerator, denominator) => {
- new_vec.push(numerator);
- new_vec.push(denominator);
- }
- SRationalBig(numerator, denominator) => {
- new_vec.push(i32::try_from(numerator)?);
- new_vec.push(i32::try_from(denominator)?);
- }
- _ => new_vec.push(v.into_i32()?),
- }
- }
- Ok(new_vec)
- }
- Signed(val) => Ok(vec![val]),
- SignedBig(val) => Ok(vec![i32::try_from(val)?]),
- SRational(numerator, denominator) => Ok(vec![numerator, denominator]),
- SRationalBig(numerator, denominator) => {
- Ok(vec![i32::try_from(numerator)?, i32::try_from(denominator)?])
- }
- val => Err(TiffError::FormatError(
- TiffFormatError::SignedIntegerExpected(val),
- )),
- }
- }
-
- pub fn into_f32_vec(self) -> TiffResult<Vec<f32>> {
- match self {
- List(vec) => {
- let mut new_vec = Vec::with_capacity(vec.len());
- for v in vec {
- new_vec.push(v.into_f32()?)
- }
- Ok(new_vec)
- }
- Float(val) => Ok(vec![val]),
- val => Err(TiffError::FormatError(
- TiffFormatError::UnsignedIntegerExpected(val),
- )),
- }
- }
-
- pub fn into_f64_vec(self) -> TiffResult<Vec<f64>> {
- match self {
- List(vec) => {
- let mut new_vec = Vec::with_capacity(vec.len());
- for v in vec {
- new_vec.push(v.into_f64()?)
- }
- Ok(new_vec)
- }
- Double(val) => Ok(vec![val]),
- val => Err(TiffError::FormatError(
- TiffFormatError::UnsignedIntegerExpected(val),
- )),
- }
- }
-
- pub fn into_u64_vec(self) -> TiffResult<Vec<u64>> {
- match self {
- List(vec) => {
- let mut new_vec = Vec::with_capacity(vec.len());
- for v in vec {
- new_vec.push(v.into_u64()?)
- }
- Ok(new_vec)
- }
- Unsigned(val) => Ok(vec![val.into()]),
- UnsignedBig(val) => Ok(vec![val]),
- Rational(numerator, denominator) => Ok(vec![numerator.into(), denominator.into()]),
- RationalBig(numerator, denominator) => Ok(vec![numerator, denominator]),
- Ifd(val) => Ok(vec![val.into()]),
- IfdBig(val) => Ok(vec![val]),
- Ascii(val) => Ok(val.chars().map(u32::from).map(u64::from).collect()),
- val => Err(TiffError::FormatError(
- TiffFormatError::UnsignedIntegerExpected(val),
- )),
- }
- }
-
- pub fn into_i64_vec(self) -> TiffResult<Vec<i64>> {
- match self {
- List(vec) => {
- let mut new_vec = Vec::with_capacity(vec.len());
- for v in vec {
- match v {
- SRational(numerator, denominator) => {
- new_vec.push(numerator.into());
- new_vec.push(denominator.into());
- }
- SRationalBig(numerator, denominator) => {
- new_vec.push(numerator);
- new_vec.push(denominator);
- }
- _ => new_vec.push(v.into_i64()?),
- }
- }
- Ok(new_vec)
- }
- Signed(val) => Ok(vec![val.into()]),
- SignedBig(val) => Ok(vec![val]),
- SRational(numerator, denominator) => Ok(vec![numerator.into(), denominator.into()]),
- SRationalBig(numerator, denominator) => Ok(vec![numerator, denominator]),
- val => Err(TiffError::FormatError(
- TiffFormatError::SignedIntegerExpected(val),
- )),
- }
- }
-}
-
-#[derive(Clone)]
-pub struct Entry {
- type_: Type,
- count: u64,
- offset: [u8; 8],
-}
-
-impl ::std::fmt::Debug for Entry {
- fn fmt(&self, fmt: &mut ::std::fmt::Formatter) -> Result<(), ::std::fmt::Error> {
- fmt.write_str(&format!(
- "Entry {{ type_: {:?}, count: {:?}, offset: {:?} }}",
- self.type_, self.count, &self.offset
- ))
- }
-}
-
-impl Entry {
- pub fn new(type_: Type, count: u32, offset: [u8; 4]) -> Entry {
- let mut offset = offset.to_vec();
- offset.append(&mut vec![0; 4]);
- Entry::new_u64(type_, count.into(), offset[..].try_into().unwrap())
- }
-
- pub fn new_u64(type_: Type, count: u64, offset: [u8; 8]) -> Entry {
- Entry {
- type_,
- count,
- offset,
- }
- }
-
- /// Returns a mem_reader for the offset/value field
- fn r(&self, byte_order: ByteOrder) -> SmartReader<io::Cursor<Vec<u8>>> {
- SmartReader::wrap(io::Cursor::new(self.offset.to_vec()), byte_order)
- }
-
- pub fn val<R: Read + Seek>(
- &self,
- limits: &super::Limits,
- bigtiff: bool,
- reader: &mut SmartReader<R>,
- ) -> TiffResult<Value> {
- // Case 1: there are no values so we can return immediately.
- if self.count == 0 {
- return Ok(List(Vec::new()));
- }
-
- let bo = reader.byte_order();
-
- let tag_size = match self.type_ {
- Type::BYTE | Type::SBYTE | Type::ASCII | Type::UNDEFINED => 1,
- Type::SHORT | Type::SSHORT => 2,
- Type::LONG | Type::SLONG | Type::FLOAT | Type::IFD => 4,
- Type::LONG8
- | Type::SLONG8
- | Type::DOUBLE
- | Type::RATIONAL
- | Type::SRATIONAL
- | Type::IFD8 => 8,
- };
-
- let value_bytes = match self.count.checked_mul(tag_size) {
- Some(n) => n,
- None => {
- return Err(TiffError::LimitsExceeded);
- }
- };
-
- // Case 2: there is one value.
- if self.count == 1 {
- // 2a: the value is 5-8 bytes and we're in BigTiff mode.
- if bigtiff && value_bytes > 4 && value_bytes <= 8 {
- return Ok(match self.type_ {
- Type::LONG8 => UnsignedBig(self.r(bo).read_u64()?),
- Type::SLONG8 => SignedBig(self.r(bo).read_i64()?),
- Type::DOUBLE => Double(self.r(bo).read_f64()?),
- Type::RATIONAL => {
- let mut r = self.r(bo);
- Rational(r.read_u32()?, r.read_u32()?)
- }
- Type::SRATIONAL => {
- let mut r = self.r(bo);
- SRational(r.read_i32()?, r.read_i32()?)
- }
- Type::IFD8 => IfdBig(self.r(bo).read_u64()?),
- Type::BYTE
- | Type::SBYTE
- | Type::ASCII
- | Type::UNDEFINED
- | Type::SHORT
- | Type::SSHORT
- | Type::LONG
- | Type::SLONG
- | Type::FLOAT
- | Type::IFD => unreachable!(),
- });
- }
-
- // 2b: the value is at most 4 bytes or doesn't fit in the offset field.
- return Ok(match self.type_ {
- Type::BYTE => Unsigned(u32::from(self.offset[0])),
- Type::SBYTE => Signed(i32::from(self.offset[0] as i8)),
- Type::UNDEFINED => Byte(self.offset[0]),
- Type::SHORT => Unsigned(u32::from(self.r(bo).read_u16()?)),
- Type::SSHORT => Signed(i32::from(self.r(bo).read_i16()?)),
- Type::LONG => Unsigned(self.r(bo).read_u32()?),
- Type::SLONG => Signed(self.r(bo).read_i32()?),
- Type::FLOAT => Float(self.r(bo).read_f32()?),
- Type::ASCII => {
- if self.offset[0] == 0 {
- Ascii("".to_string())
- } else {
- return Err(TiffError::FormatError(TiffFormatError::InvalidTag));
- }
- }
- Type::LONG8 => {
- reader.goto_offset(self.r(bo).read_u32()?.into())?;
- UnsignedBig(reader.read_u64()?)
- }
- Type::SLONG8 => {
- reader.goto_offset(self.r(bo).read_u32()?.into())?;
- SignedBig(reader.read_i64()?)
- }
- Type::DOUBLE => {
- reader.goto_offset(self.r(bo).read_u32()?.into())?;
- Double(reader.read_f64()?)
- }
- Type::RATIONAL => {
- reader.goto_offset(self.r(bo).read_u32()?.into())?;
- Rational(reader.read_u32()?, reader.read_u32()?)
- }
- Type::SRATIONAL => {
- reader.goto_offset(self.r(bo).read_u32()?.into())?;
- SRational(reader.read_i32()?, reader.read_i32()?)
- }
- Type::IFD => Ifd(self.r(bo).read_u32()?),
- Type::IFD8 => {
- reader.goto_offset(self.r(bo).read_u32()?.into())?;
- IfdBig(reader.read_u64()?)
- }
- });
- }
-
- // Case 3: There is more than one value, but it fits in the offset field.
- if value_bytes <= 4 || bigtiff && value_bytes <= 8 {
- match self.type_ {
- Type::BYTE => return offset_to_bytes(self.count as usize, self),
- Type::SBYTE => return offset_to_sbytes(self.count as usize, self),
- Type::ASCII => {
- let mut buf = vec![0; self.count as usize];
- self.r(bo).read_exact(&mut buf)?;
- if buf.is_ascii() && buf.ends_with(&[0]) {
- let v = str::from_utf8(&buf)?;
- let v = v.trim_matches(char::from(0));
- return Ok(Ascii(v.into()));
- } else {
- return Err(TiffError::FormatError(TiffFormatError::InvalidTag));
- }
- }
- Type::UNDEFINED => {
- return Ok(List(
- self.offset[0..self.count as usize]
- .iter()
- .map(|&b| Byte(b))
- .collect(),
- ));
- }
- Type::SHORT => {
- let mut r = self.r(bo);
- let mut v = Vec::new();
- for _ in 0..self.count {
- v.push(Short(r.read_u16()?));
- }
- return Ok(List(v));
- }
- Type::SSHORT => {
- let mut r = self.r(bo);
- let mut v = Vec::new();
- for _ in 0..self.count {
- v.push(Signed(i32::from(r.read_i16()?)));
- }
- return Ok(List(v));
- }
- Type::LONG => {
- let mut r = self.r(bo);
- let mut v = Vec::new();
- for _ in 0..self.count {
- v.push(Unsigned(r.read_u32()?));
- }
- return Ok(List(v));
- }
- Type::SLONG => {
- let mut r = self.r(bo);
- let mut v = Vec::new();
- for _ in 0..self.count {
- v.push(Signed(r.read_i32()?));
- }
- return Ok(List(v));
- }
- Type::FLOAT => {
- let mut r = self.r(bo);
- let mut v = Vec::new();
- for _ in 0..self.count {
- v.push(Float(r.read_f32()?));
- }
- return Ok(List(v));
- }
- Type::IFD => {
- let mut r = self.r(bo);
- let mut v = Vec::new();
- for _ in 0..self.count {
- v.push(Ifd(r.read_u32()?));
- }
- return Ok(List(v));
- }
- Type::LONG8
- | Type::SLONG8
- | Type::RATIONAL
- | Type::SRATIONAL
- | Type::DOUBLE
- | Type::IFD8 => {
- unreachable!()
- }
- }
- }
-
- // Case 4: there is more than one value, and it doesn't fit in the offset field.
- match self.type_ {
- // TODO check if this could give wrong results
- // at a different endianess of file/computer.
- Type::BYTE => self.decode_offset(self.count, bo, bigtiff, limits, reader, |reader| {
- let mut buf = [0; 1];
- reader.read_exact(&mut buf)?;
- Ok(UnsignedBig(u64::from(buf[0])))
- }),
- Type::SBYTE => self.decode_offset(self.count, bo, bigtiff, limits, reader, |reader| {
- Ok(SignedBig(i64::from(reader.read_i8()? as i8)))
- }),
- Type::SHORT => self.decode_offset(self.count, bo, bigtiff, limits, reader, |reader| {
- Ok(UnsignedBig(u64::from(reader.read_u16()?)))
- }),
- Type::SSHORT => self.decode_offset(self.count, bo, bigtiff, limits, reader, |reader| {
- Ok(SignedBig(i64::from(reader.read_i16()?)))
- }),
- Type::LONG => self.decode_offset(self.count, bo, bigtiff, limits, reader, |reader| {
- Ok(Unsigned(reader.read_u32()?))
- }),
- Type::SLONG => self.decode_offset(self.count, bo, bigtiff, limits, reader, |reader| {
- Ok(Signed(reader.read_i32()?))
- }),
- Type::FLOAT => self.decode_offset(self.count, bo, bigtiff, limits, reader, |reader| {
- Ok(Float(reader.read_f32()?))
- }),
- Type::DOUBLE => self.decode_offset(self.count, bo, bigtiff, limits, reader, |reader| {
- Ok(Double(reader.read_f64()?))
- }),
- Type::RATIONAL => {
- self.decode_offset(self.count, bo, bigtiff, limits, reader, |reader| {
- Ok(Rational(reader.read_u32()?, reader.read_u32()?))
- })
- }
- Type::SRATIONAL => {
- self.decode_offset(self.count, bo, bigtiff, limits, reader, |reader| {
- Ok(SRational(reader.read_i32()?, reader.read_i32()?))
- })
- }
- Type::LONG8 => self.decode_offset(self.count, bo, bigtiff, limits, reader, |reader| {
- Ok(UnsignedBig(reader.read_u64()?))
- }),
- Type::SLONG8 => self.decode_offset(self.count, bo, bigtiff, limits, reader, |reader| {
- Ok(SignedBig(reader.read_i64()?))
- }),
- Type::IFD => self.decode_offset(self.count, bo, bigtiff, limits, reader, |reader| {
- Ok(Ifd(reader.read_u32()?))
- }),
- Type::IFD8 => self.decode_offset(self.count, bo, bigtiff, limits, reader, |reader| {
- Ok(IfdBig(reader.read_u64()?))
- }),
- Type::UNDEFINED => {
- self.decode_offset(self.count, bo, bigtiff, limits, reader, |reader| {
- let mut buf = [0; 1];
- reader.read_exact(&mut buf)?;
- Ok(Byte(buf[0]))
- })
- }
- Type::ASCII => {
- let n = usize::try_from(self.count)?;
- if n > limits.decoding_buffer_size {
- return Err(TiffError::LimitsExceeded);
- }
-
- if bigtiff {
- reader.goto_offset(self.r(bo).read_u64()?)?
- } else {
- reader.goto_offset(self.r(bo).read_u32()?.into())?
- }
-
- let mut out = vec![0; n];
- reader.read_exact(&mut out)?;
- // Strings may be null-terminated, so we trim anything downstream of the null byte
- if let Some(first) = out.iter().position(|&b| b == 0) {
- out.truncate(first);
- }
- Ok(Ascii(String::from_utf8(out)?))
- }
- }
- }
-
- #[inline]
- fn decode_offset<R, F>(
- &self,
- value_count: u64,
- bo: ByteOrder,
- bigtiff: bool,
- limits: &super::Limits,
- reader: &mut SmartReader<R>,
- decode_fn: F,
- ) -> TiffResult<Value>
- where
- R: Read + Seek,
- F: Fn(&mut SmartReader<R>) -> TiffResult<Value>,
- {
- let value_count = usize::try_from(value_count)?;
- if value_count > limits.decoding_buffer_size / mem::size_of::<Value>() {
- return Err(TiffError::LimitsExceeded);
- }
-
- let mut v = Vec::with_capacity(value_count);
-
- let offset = if bigtiff {
- self.r(bo).read_u64()?
- } else {
- self.r(bo).read_u32()?.into()
- };
- reader.goto_offset(offset)?;
-
- for _ in 0..value_count {
- v.push(decode_fn(reader)?)
- }
- Ok(List(v))
- }
-}
-
-/// Extracts a list of BYTE tags stored in an offset
-#[inline]
-fn offset_to_bytes(n: usize, entry: &Entry) -> TiffResult<Value> {
- Ok(List(
- entry.offset[0..n]
- .iter()
- .map(|&e| Unsigned(u32::from(e)))
- .collect(),
- ))
-}
-
-/// Extracts a list of SBYTE tags stored in an offset
-#[inline]
-fn offset_to_sbytes(n: usize, entry: &Entry) -> TiffResult<Value> {
- Ok(List(
- entry.offset[0..n]
- .iter()
- .map(|&e| Signed(i32::from(e as i8)))
- .collect(),
- ))
-}
-
-/// Type representing an Image File Directory
-pub type Directory = HashMap<Tag, Entry>;
diff --git a/vendor/tiff/src/decoder/image.rs b/vendor/tiff/src/decoder/image.rs
deleted file mode 100644
index c037e31..0000000
--- a/vendor/tiff/src/decoder/image.rs
+++ /dev/null
@@ -1,601 +0,0 @@
-use super::ifd::{Directory, Value};
-use super::stream::{ByteOrder, DeflateReader, JpegReader, LZWReader, PackBitsReader};
-use super::tag_reader::TagReader;
-use super::{fp_predict_f32, fp_predict_f64, DecodingBuffer, Limits};
-use super::{stream::SmartReader, ChunkType};
-use crate::tags::{CompressionMethod, PhotometricInterpretation, Predictor, SampleFormat, Tag};
-use crate::{ColorType, TiffError, TiffFormatError, TiffResult, TiffUnsupportedError, UsageError};
-use std::convert::{TryFrom, TryInto};
-use std::io::{self, Cursor, Read, Seek};
-use std::sync::Arc;
-
-#[derive(Debug)]
-pub(crate) struct StripDecodeState {
- pub rows_per_strip: u32,
-}
-
-#[derive(Debug)]
-/// Computed values useful for tile decoding
-pub(crate) struct TileAttributes {
- pub image_width: usize,
- pub image_height: usize,
-
- pub tile_width: usize,
- pub tile_length: usize,
-}
-
-impl TileAttributes {
- pub fn tiles_across(&self) -> usize {
- (self.image_width + self.tile_width - 1) / self.tile_width
- }
- pub fn tiles_down(&self) -> usize {
- (self.image_height + self.tile_length - 1) / self.tile_length
- }
- fn padding_right(&self) -> usize {
- (self.tile_width - self.image_width % self.tile_width) % self.tile_width
- }
- fn padding_down(&self) -> usize {
- (self.tile_length - self.image_height % self.tile_length) % self.tile_length
- }
- pub fn get_padding(&self, tile: usize) -> (usize, usize) {
- let row = tile / self.tiles_across();
- let column = tile % self.tiles_across();
-
- let padding_right = if column == self.tiles_across() - 1 {
- self.padding_right()
- } else {
- 0
- };
-
- let padding_down = if row == self.tiles_down() - 1 {
- self.padding_down()
- } else {
- 0
- };
-
- (padding_right, padding_down)
- }
-}
-
-#[derive(Debug)]
-pub(crate) struct Image {
- pub ifd: Option<Directory>,
- pub width: u32,
- pub height: u32,
- pub bits_per_sample: Vec<u8>,
- #[allow(unused)]
- pub samples: u8,
- pub sample_format: Vec<SampleFormat>,
- pub photometric_interpretation: PhotometricInterpretation,
- pub compression_method: CompressionMethod,
- pub predictor: Predictor,
- pub jpeg_tables: Option<Arc<Vec<u8>>>,
- pub chunk_type: ChunkType,
- pub strip_decoder: Option<StripDecodeState>,
- pub tile_attributes: Option<TileAttributes>,
- pub chunk_offsets: Vec<u64>,
- pub chunk_bytes: Vec<u64>,
-}
-
-impl Image {
- pub fn from_reader<R: Read + Seek>(
- reader: &mut SmartReader<R>,
- ifd: Directory,
- limits: &Limits,
- bigtiff: bool,
- ) -> TiffResult<Image> {
- let mut tag_reader = TagReader {
- reader,
- limits,
- ifd: &ifd,
- bigtiff,
- };
-
- let width = tag_reader.require_tag(Tag::ImageWidth)?.into_u32()?;
- let height = tag_reader.require_tag(Tag::ImageLength)?.into_u32()?;
- if width == 0 || height == 0 {
- return Err(TiffError::FormatError(TiffFormatError::InvalidDimensions(
- width, height,
- )));
- }
-
- let photometric_interpretation = tag_reader
- .find_tag(Tag::PhotometricInterpretation)?
- .map(Value::into_u16)
- .transpose()?
- .and_then(PhotometricInterpretation::from_u16)
- .ok_or(TiffUnsupportedError::UnknownInterpretation)?;
-
- // Try to parse both the compression method and the number, format, and bits of the included samples.
- // If they are not explicitly specified, those tags are reset to their default values and not carried from previous images.
- let compression_method = match tag_reader.find_tag(Tag::Compression)? {
- Some(val) => CompressionMethod::from_u16(val.into_u16()?)
- .ok_or(TiffUnsupportedError::UnknownCompressionMethod)?,
- None => CompressionMethod::None,
- };
-
- let jpeg_tables = if compression_method == CompressionMethod::ModernJPEG
- && ifd.contains_key(&Tag::JPEGTables)
- {
- let vec = tag_reader
- .find_tag(Tag::JPEGTables)?
- .unwrap()
- .into_u8_vec()?;
- if vec.len() < 2 {
- return Err(TiffError::FormatError(
- TiffFormatError::InvalidTagValueType(Tag::JPEGTables),
- ));
- }
-
- Some(Arc::new(vec))
- } else {
- None
- };
-
- let samples = tag_reader
- .find_tag(Tag::SamplesPerPixel)?
- .map(Value::into_u16)
- .transpose()?
- .unwrap_or(1)
- .try_into()?;
-
- let sample_format = match tag_reader.find_tag_uint_vec(Tag::SampleFormat)? {
- Some(vals) => {
- let sample_format: Vec<_> = vals
- .into_iter()
- .map(SampleFormat::from_u16_exhaustive)
- .collect();
-
- // TODO: for now, only homogenous formats across samples are supported.
- if !sample_format.windows(2).all(|s| s[0] == s[1]) {
- return Err(TiffUnsupportedError::UnsupportedSampleFormat(sample_format).into());
- }
-
- sample_format
- }
- None => vec![SampleFormat::Uint],
- };
-
- let bits_per_sample = match samples {
- 1 | 3 | 4 => tag_reader
- .find_tag_uint_vec(Tag::BitsPerSample)?
- .unwrap_or_else(|| vec![1]),
- _ => return Err(TiffUnsupportedError::UnsupportedSampleDepth(samples).into()),
- };
-
- let predictor = tag_reader
- .find_tag(Tag::Predictor)?
- .map(Value::into_u16)
- .transpose()?
- .map(|p| {
- Predictor::from_u16(p)
- .ok_or(TiffError::FormatError(TiffFormatError::UnknownPredictor(p)))
- })
- .transpose()?
- .unwrap_or(Predictor::None);
-
- let chunk_type;
- let chunk_offsets;
- let chunk_bytes;
- let strip_decoder;
- let tile_attributes;
- match (
- ifd.contains_key(&Tag::StripByteCounts),
- ifd.contains_key(&Tag::StripOffsets),
- ifd.contains_key(&Tag::TileByteCounts),
- ifd.contains_key(&Tag::TileOffsets),
- ) {
- (true, true, false, false) => {
- chunk_type = ChunkType::Strip;
-
- chunk_offsets = tag_reader
- .find_tag(Tag::StripOffsets)?
- .unwrap()
- .into_u64_vec()?;
- chunk_bytes = tag_reader
- .find_tag(Tag::StripByteCounts)?
- .unwrap()
- .into_u64_vec()?;
- let rows_per_strip = tag_reader
- .find_tag(Tag::RowsPerStrip)?
- .map(Value::into_u32)
- .transpose()?
- .unwrap_or(height);
- strip_decoder = Some(StripDecodeState { rows_per_strip });
- tile_attributes = None;
-
- if chunk_offsets.len() != chunk_bytes.len()
- || rows_per_strip == 0
- || u32::try_from(chunk_offsets.len())?
- != height.saturating_sub(1) / rows_per_strip + 1
- {
- return Err(TiffError::FormatError(
- TiffFormatError::InconsistentSizesEncountered,
- ));
- }
- }
- (false, false, true, true) => {
- chunk_type = ChunkType::Tile;
-
- let tile_width =
- usize::try_from(tag_reader.require_tag(Tag::TileWidth)?.into_u32()?)?;
- let tile_length =
- usize::try_from(tag_reader.require_tag(Tag::TileLength)?.into_u32()?)?;
-
- if tile_width == 0 {
- return Err(TiffFormatError::InvalidTagValueType(Tag::TileWidth).into());
- } else if tile_length == 0 {
- return Err(TiffFormatError::InvalidTagValueType(Tag::TileLength).into());
- }
-
- strip_decoder = None;
- tile_attributes = Some(TileAttributes {
- image_width: usize::try_from(width)?,
- image_height: usize::try_from(height)?,
- tile_width,
- tile_length,
- });
- chunk_offsets = tag_reader
- .find_tag(Tag::TileOffsets)?
- .unwrap()
- .into_u64_vec()?;
- chunk_bytes = tag_reader
- .find_tag(Tag::TileByteCounts)?
- .unwrap()
- .into_u64_vec()?;
-
- let tile = tile_attributes.as_ref().unwrap();
- if chunk_offsets.len() != chunk_bytes.len()
- || chunk_offsets.len() != tile.tiles_down() * tile.tiles_across()
- {
- return Err(TiffError::FormatError(
- TiffFormatError::InconsistentSizesEncountered,
- ));
- }
- }
- (_, _, _, _) => {
- return Err(TiffError::FormatError(
- TiffFormatError::StripTileTagConflict,
- ))
- }
- };
-
- Ok(Image {
- ifd: Some(ifd),
- width,
- height,
- bits_per_sample,
- samples,
- sample_format,
- photometric_interpretation,
- compression_method,
- jpeg_tables,
- predictor,
- chunk_type,
- strip_decoder,
- tile_attributes,
- chunk_offsets,
- chunk_bytes,
- })
- }
-
- pub(crate) fn colortype(&self) -> TiffResult<ColorType> {
- match self.photometric_interpretation {
- PhotometricInterpretation::RGB => match self.bits_per_sample[..] {
- [r, g, b] if [r, r] == [g, b] => Ok(ColorType::RGB(r)),
- [r, g, b, a] if [r, r, r] == [g, b, a] => Ok(ColorType::RGBA(r)),
- // FIXME: We should _ignore_ other components. In particular:
- // > Beware of extra components. Some TIFF files may have more components per pixel
- // than you think. A Baseline TIFF reader must skip over them gracefully,using the
- // values of the SamplesPerPixel and BitsPerSample fields.
- // > -- TIFF 6.0 Specification, Section 7, Additional Baseline requirements.
- _ => Err(TiffError::UnsupportedError(
- TiffUnsupportedError::InterpretationWithBits(
- self.photometric_interpretation,
- self.bits_per_sample.clone(),
- ),
- )),
- },
- PhotometricInterpretation::CMYK => match self.bits_per_sample[..] {
- [c, m, y, k] if [c, c, c] == [m, y, k] => Ok(ColorType::CMYK(c)),
- _ => Err(TiffError::UnsupportedError(
- TiffUnsupportedError::InterpretationWithBits(
- self.photometric_interpretation,
- self.bits_per_sample.clone(),
- ),
- )),
- },
- PhotometricInterpretation::YCbCr => match self.bits_per_sample[..] {
- [y, cb, cr] if [y, y] == [cb, cr] => Ok(ColorType::YCbCr(y)),
- _ => Err(TiffError::UnsupportedError(
- TiffUnsupportedError::InterpretationWithBits(
- self.photometric_interpretation,
- self.bits_per_sample.clone(),
- ),
- )),
- },
- PhotometricInterpretation::BlackIsZero | PhotometricInterpretation::WhiteIsZero
- if self.bits_per_sample.len() == 1 =>
- {
- Ok(ColorType::Gray(self.bits_per_sample[0]))
- }
-
- // TODO: this is bad we should not fail at this point
- _ => Err(TiffError::UnsupportedError(
- TiffUnsupportedError::InterpretationWithBits(
- self.photometric_interpretation,
- self.bits_per_sample.clone(),
- ),
- )),
- }
- }
-
- fn create_reader<'r, R: 'r + Read>(
- reader: R,
- photometric_interpretation: PhotometricInterpretation,
- compression_method: CompressionMethod,
- compressed_length: u64,
- jpeg_tables: Option<Arc<Vec<u8>>>,
- ) -> TiffResult<Box<dyn Read + 'r>> {
- Ok(match compression_method {
- CompressionMethod::None => Box::new(reader),
- CompressionMethod::LZW => {
- Box::new(LZWReader::new(reader, usize::try_from(compressed_length)?))
- }
- CompressionMethod::PackBits => Box::new(PackBitsReader::new(reader, compressed_length)),
- CompressionMethod::Deflate | CompressionMethod::OldDeflate => {
- Box::new(DeflateReader::new(reader))
- }
- CompressionMethod::ModernJPEG => {
- if jpeg_tables.is_some() && compressed_length < 2 {
- return Err(TiffError::FormatError(
- TiffFormatError::InvalidTagValueType(Tag::JPEGTables),
- ));
- }
-
- let jpeg_reader = JpegReader::new(reader, compressed_length, jpeg_tables)?;
- let mut decoder = jpeg::Decoder::new(jpeg_reader);
-
- match photometric_interpretation {
- PhotometricInterpretation::RGB => {
- decoder.set_color_transform(jpeg::ColorTransform::RGB)
- }
- PhotometricInterpretation::WhiteIsZero => {
- decoder.set_color_transform(jpeg::ColorTransform::None)
- }
- PhotometricInterpretation::BlackIsZero => {
- decoder.set_color_transform(jpeg::ColorTransform::None)
- }
- PhotometricInterpretation::TransparencyMask => {
- decoder.set_color_transform(jpeg::ColorTransform::None)
- }
- PhotometricInterpretation::CMYK => {
- decoder.set_color_transform(jpeg::ColorTransform::CMYK)
- }
- PhotometricInterpretation::YCbCr => {
- decoder.set_color_transform(jpeg::ColorTransform::YCbCr)
- }
- photometric_interpretation => {
- return Err(TiffError::UnsupportedError(
- TiffUnsupportedError::UnsupportedInterpretation(
- photometric_interpretation,
- ),
- ));
- }
- }
-
- let data = decoder.decode()?;
-
- Box::new(Cursor::new(data))
- }
- method => {
- return Err(TiffError::UnsupportedError(
- TiffUnsupportedError::UnsupportedCompressionMethod(method),
- ))
- }
- })
- }
-
- pub(crate) fn chunk_file_range(&self, chunk: u32) -> TiffResult<(u64, u64)> {
- let file_offset = self
- .chunk_offsets
- .get(chunk as usize)
- .ok_or(TiffError::FormatError(
- TiffFormatError::InconsistentSizesEncountered,
- ))?;
-
- let compressed_bytes =
- self.chunk_bytes
- .get(chunk as usize)
- .ok_or(TiffError::FormatError(
- TiffFormatError::InconsistentSizesEncountered,
- ))?;
-
- Ok((*file_offset, *compressed_bytes))
- }
-
- pub(crate) fn chunk_dimensions(&self) -> TiffResult<(u32, u32)> {
- match self.chunk_type {
- ChunkType::Strip => {
- let strip_attrs = self.strip_decoder.as_ref().unwrap();
- Ok((self.width, strip_attrs.rows_per_strip))
- }
- ChunkType::Tile => {
- let tile_attrs = self.tile_attributes.as_ref().unwrap();
- Ok((
- u32::try_from(tile_attrs.tile_width)?,
- u32::try_from(tile_attrs.tile_length)?,
- ))
- }
- }
- }
-
- pub(crate) fn chunk_data_dimensions(&self, chunk_index: u32) -> TiffResult<(u32, u32)> {
- let dims = self.chunk_dimensions()?;
-
- match self.chunk_type {
- ChunkType::Strip => {
- let strip_height_without_padding = chunk_index
- .checked_mul(dims.1)
- .and_then(|x| self.height.checked_sub(x))
- .ok_or(TiffError::UsageError(UsageError::InvalidChunkIndex(
- chunk_index,
- )))?;
-
- // Ignore potential vertical padding on the bottommost strip
- let strip_height = dims.1.min(strip_height_without_padding);
-
- Ok((dims.0, strip_height))
- }
- ChunkType::Tile => {
- let tile_attrs = self.tile_attributes.as_ref().unwrap();
- let (padding_right, padding_down) = tile_attrs.get_padding(chunk_index as usize);
-
- let tile_width = tile_attrs.tile_width - padding_right;
- let tile_length = tile_attrs.tile_length - padding_down;
-
- Ok((u32::try_from(tile_width)?, u32::try_from(tile_length)?))
- }
- }
- }
-
- pub(crate) fn expand_chunk(
- &self,
- reader: impl Read,
- mut buffer: DecodingBuffer,
- output_width: usize,
- byte_order: ByteOrder,
- chunk_index: u32,
- ) -> TiffResult<()> {
- // Validate that the provided buffer is of the expected type.
- let color_type = self.colortype()?;
- match (color_type, &buffer) {
- (ColorType::RGB(n), _)
- | (ColorType::RGBA(n), _)
- | (ColorType::CMYK(n), _)
- | (ColorType::YCbCr(n), _)
- | (ColorType::Gray(n), _)
- if usize::from(n) == buffer.byte_len() * 8 => {}
- (ColorType::Gray(n), DecodingBuffer::U8(_)) if n < 8 => match self.predictor {
- Predictor::None => {}
- Predictor::Horizontal => {
- return Err(TiffError::UnsupportedError(
- TiffUnsupportedError::HorizontalPredictor(color_type),
- ))
- }
- Predictor::FloatingPoint => {
- return Err(TiffError::UnsupportedError(
- TiffUnsupportedError::FloatingPointPredictor(color_type),
- ));
- }
- },
- (type_, _) => {
- return Err(TiffError::UnsupportedError(
- TiffUnsupportedError::UnsupportedColorType(type_),
- ))
- }
- }
-
- // Validate that the predictor is supported for the sample type.
- match (self.predictor, &buffer) {
- (Predictor::Horizontal, DecodingBuffer::F32(_))
- | (Predictor::Horizontal, DecodingBuffer::F64(_)) => {
- return Err(TiffError::UnsupportedError(
- TiffUnsupportedError::HorizontalPredictor(color_type),
- ));
- }
- (Predictor::FloatingPoint, DecodingBuffer::F32(_))
- | (Predictor::FloatingPoint, DecodingBuffer::F64(_)) => {}
- (Predictor::FloatingPoint, _) => {
- return Err(TiffError::UnsupportedError(
- TiffUnsupportedError::FloatingPointPredictor(color_type),
- ));
- }
- _ => {}
- }
-
- let compressed_bytes =
- self.chunk_bytes
- .get(chunk_index as usize)
- .ok_or(TiffError::FormatError(
- TiffFormatError::InconsistentSizesEncountered,
- ))?;
-
- let byte_len = buffer.byte_len();
- let compression_method = self.compression_method;
- let photometric_interpretation = self.photometric_interpretation;
- let predictor = self.predictor;
- let samples = self.bits_per_sample.len();
-
- let chunk_dims = self.chunk_dimensions()?;
- let data_dims = self.chunk_data_dimensions(chunk_index)?;
-
- let padding_right = chunk_dims.0 - data_dims.0;
-
- let jpeg_tables = self.jpeg_tables.clone();
- let mut reader = Self::create_reader(
- reader,
- photometric_interpretation,
- compression_method,
- *compressed_bytes,
- jpeg_tables,
- )?;
-
- if output_width == data_dims.0 as usize && padding_right == 0 {
- let total_samples = data_dims.0 as usize * data_dims.1 as usize * samples;
- let tile = &mut buffer.as_bytes_mut()[..total_samples * byte_len];
- reader.read_exact(tile)?;
-
- for row in 0..data_dims.1 as usize {
- let row_start = row as usize * output_width as usize * samples;
- let row_end = (row + 1) * output_width as usize * samples;
- let row = buffer.subrange(row_start..row_end);
- super::fix_endianness_and_predict(row, samples, byte_order, predictor);
- }
- if photometric_interpretation == PhotometricInterpretation::WhiteIsZero {
- super::invert_colors(&mut buffer.subrange(0..total_samples), color_type);
- }
- } else if padding_right > 0 && self.predictor == Predictor::FloatingPoint {
- // The floating point predictor shuffles the padding bytes into the encoded output, so
- // this case is handled specially when needed.
- let mut encoded = vec![0u8; chunk_dims.0 as usize * samples * byte_len];
-
- for row in 0..data_dims.1 as usize {
- let row_start = row * output_width as usize * samples;
- let row_end = row_start + data_dims.0 as usize * samples;
-
- reader.read_exact(&mut encoded)?;
- match buffer.subrange(row_start..row_end) {
- DecodingBuffer::F32(buf) => fp_predict_f32(&mut encoded, buf, samples),
- DecodingBuffer::F64(buf) => fp_predict_f64(&mut encoded, buf, samples),
- _ => unreachable!(),
- }
- if photometric_interpretation == PhotometricInterpretation::WhiteIsZero {
- super::invert_colors(&mut buffer.subrange(row_start..row_end), color_type);
- }
- }
- } else {
- for row in 0..data_dims.1 as usize {
- let row_start = row * output_width as usize * samples;
- let row_end = row_start + data_dims.0 as usize * samples;
-
- let row = &mut buffer.as_bytes_mut()[(row_start * byte_len)..(row_end * byte_len)];
- reader.read_exact(row)?;
-
- // Skip horizontal padding
- if padding_right > 0 {
- let len = u64::try_from(padding_right as usize * samples * byte_len)?;
- io::copy(&mut reader.by_ref().take(len), &mut io::sink())?;
- }
-
- let mut row = buffer.subrange(row_start..row_end);
- super::fix_endianness_and_predict(row.copy(), samples, byte_order, predictor);
- if photometric_interpretation == PhotometricInterpretation::WhiteIsZero {
- super::invert_colors(&mut row, color_type);
- }
- }
- }
-
- Ok(())
- }
-}
diff --git a/vendor/tiff/src/decoder/mod.rs b/vendor/tiff/src/decoder/mod.rs
deleted file mode 100644
index 5fa1812..0000000
--- a/vendor/tiff/src/decoder/mod.rs
+++ /dev/null
@@ -1,1176 +0,0 @@
-use std::collections::{HashMap, HashSet};
-use std::convert::TryFrom;
-use std::io::{self, Read, Seek};
-use std::ops::Range;
-
-use crate::{
- bytecast, ColorType, TiffError, TiffFormatError, TiffResult, TiffUnsupportedError, UsageError,
-};
-
-use self::ifd::Directory;
-use self::image::Image;
-use crate::tags::{
- CompressionMethod, PhotometricInterpretation, Predictor, SampleFormat, Tag, Type,
-};
-
-use self::stream::{ByteOrder, EndianReader, SmartReader};
-
-pub mod ifd;
-mod image;
-mod stream;
-mod tag_reader;
-
-/// Result of a decoding process
-#[derive(Debug)]
-pub enum DecodingResult {
- /// A vector of unsigned bytes
- U8(Vec<u8>),
- /// A vector of unsigned words
- U16(Vec<u16>),
- /// A vector of 32 bit unsigned ints
- U32(Vec<u32>),
- /// A vector of 64 bit unsigned ints
- U64(Vec<u64>),
- /// A vector of 32 bit IEEE floats
- F32(Vec<f32>),
- /// A vector of 64 bit IEEE floats
- F64(Vec<f64>),
- /// A vector of 8 bit signed ints
- I8(Vec<i8>),
- /// A vector of 16 bit signed ints
- I16(Vec<i16>),
- /// A vector of 32 bit signed ints
- I32(Vec<i32>),
- /// A vector of 64 bit signed ints
- I64(Vec<i64>),
-}
-
-impl DecodingResult {
- fn new_u8(size: usize, limits: &Limits) -> TiffResult<DecodingResult> {
- if size > limits.decoding_buffer_size {
- Err(TiffError::LimitsExceeded)
- } else {
- Ok(DecodingResult::U8(vec![0; size]))
- }
- }
-
- fn new_u16(size: usize, limits: &Limits) -> TiffResult<DecodingResult> {
- if size > limits.decoding_buffer_size / 2 {
- Err(TiffError::LimitsExceeded)
- } else {
- Ok(DecodingResult::U16(vec![0; size]))
- }
- }
-
- fn new_u32(size: usize, limits: &Limits) -> TiffResult<DecodingResult> {
- if size > limits.decoding_buffer_size / 4 {
- Err(TiffError::LimitsExceeded)
- } else {
- Ok(DecodingResult::U32(vec![0; size]))
- }
- }
-
- fn new_u64(size: usize, limits: &Limits) -> TiffResult<DecodingResult> {
- if size > limits.decoding_buffer_size / 8 {
- Err(TiffError::LimitsExceeded)
- } else {
- Ok(DecodingResult::U64(vec![0; size]))
- }
- }
-
- fn new_f32(size: usize, limits: &Limits) -> TiffResult<DecodingResult> {
- if size > limits.decoding_buffer_size / std::mem::size_of::<f32>() {
- Err(TiffError::LimitsExceeded)
- } else {
- Ok(DecodingResult::F32(vec![0.0; size]))
- }
- }
-
- fn new_f64(size: usize, limits: &Limits) -> TiffResult<DecodingResult> {
- if size > limits.decoding_buffer_size / std::mem::size_of::<f64>() {
- Err(TiffError::LimitsExceeded)
- } else {
- Ok(DecodingResult::F64(vec![0.0; size]))
- }
- }
-
- fn new_i8(size: usize, limits: &Limits) -> TiffResult<DecodingResult> {
- if size > limits.decoding_buffer_size / std::mem::size_of::<i8>() {
- Err(TiffError::LimitsExceeded)
- } else {
- Ok(DecodingResult::I8(vec![0; size]))
- }
- }
-
- fn new_i16(size: usize, limits: &Limits) -> TiffResult<DecodingResult> {
- if size > limits.decoding_buffer_size / 2 {
- Err(TiffError::LimitsExceeded)
- } else {
- Ok(DecodingResult::I16(vec![0; size]))
- }
- }
-
- fn new_i32(size: usize, limits: &Limits) -> TiffResult<DecodingResult> {
- if size > limits.decoding_buffer_size / 4 {
- Err(TiffError::LimitsExceeded)
- } else {
- Ok(DecodingResult::I32(vec![0; size]))
- }
- }
-
- fn new_i64(size: usize, limits: &Limits) -> TiffResult<DecodingResult> {
- if size > limits.decoding_buffer_size / 8 {
- Err(TiffError::LimitsExceeded)
- } else {
- Ok(DecodingResult::I64(vec![0; size]))
- }
- }
-
- pub fn as_buffer(&mut self, start: usize) -> DecodingBuffer {
- match *self {
- DecodingResult::U8(ref mut buf) => DecodingBuffer::U8(&mut buf[start..]),
- DecodingResult::U16(ref mut buf) => DecodingBuffer::U16(&mut buf[start..]),
- DecodingResult::U32(ref mut buf) => DecodingBuffer::U32(&mut buf[start..]),
- DecodingResult::U64(ref mut buf) => DecodingBuffer::U64(&mut buf[start..]),
- DecodingResult::F32(ref mut buf) => DecodingBuffer::F32(&mut buf[start..]),
- DecodingResult::F64(ref mut buf) => DecodingBuffer::F64(&mut buf[start..]),
- DecodingResult::I8(ref mut buf) => DecodingBuffer::I8(&mut buf[start..]),
- DecodingResult::I16(ref mut buf) => DecodingBuffer::I16(&mut buf[start..]),
- DecodingResult::I32(ref mut buf) => DecodingBuffer::I32(&mut buf[start..]),
- DecodingResult::I64(ref mut buf) => DecodingBuffer::I64(&mut buf[start..]),
- }
- }
-}
-
-// A buffer for image decoding
-pub enum DecodingBuffer<'a> {
- /// A slice of unsigned bytes
- U8(&'a mut [u8]),
- /// A slice of unsigned words
- U16(&'a mut [u16]),
- /// A slice of 32 bit unsigned ints
- U32(&'a mut [u32]),
- /// A slice of 64 bit unsigned ints
- U64(&'a mut [u64]),
- /// A slice of 32 bit IEEE floats
- F32(&'a mut [f32]),
- /// A slice of 64 bit IEEE floats
- F64(&'a mut [f64]),
- /// A slice of 8 bits signed ints
- I8(&'a mut [i8]),
- /// A slice of 16 bits signed ints
- I16(&'a mut [i16]),
- /// A slice of 32 bits signed ints
- I32(&'a mut [i32]),
- /// A slice of 64 bits signed ints
- I64(&'a mut [i64]),
-}
-
-impl<'a> DecodingBuffer<'a> {
- fn byte_len(&self) -> usize {
- match *self {
- DecodingBuffer::U8(_) => 1,
- DecodingBuffer::U16(_) => 2,
- DecodingBuffer::U32(_) => 4,
- DecodingBuffer::U64(_) => 8,
- DecodingBuffer::F32(_) => 4,
- DecodingBuffer::F64(_) => 8,
- DecodingBuffer::I8(_) => 1,
- DecodingBuffer::I16(_) => 2,
- DecodingBuffer::I32(_) => 4,
- DecodingBuffer::I64(_) => 8,
- }
- }
-
- fn copy<'b>(&'b mut self) -> DecodingBuffer<'b>
- where
- 'a: 'b,
- {
- match *self {
- DecodingBuffer::U8(ref mut buf) => DecodingBuffer::U8(buf),
- DecodingBuffer::U16(ref mut buf) => DecodingBuffer::U16(buf),
- DecodingBuffer::U32(ref mut buf) => DecodingBuffer::U32(buf),
- DecodingBuffer::U64(ref mut buf) => DecodingBuffer::U64(buf),
- DecodingBuffer::F32(ref mut buf) => DecodingBuffer::F32(buf),
- DecodingBuffer::F64(ref mut buf) => DecodingBuffer::F64(buf),
- DecodingBuffer::I8(ref mut buf) => DecodingBuffer::I8(buf),
- DecodingBuffer::I16(ref mut buf) => DecodingBuffer::I16(buf),
- DecodingBuffer::I32(ref mut buf) => DecodingBuffer::I32(buf),
- DecodingBuffer::I64(ref mut buf) => DecodingBuffer::I64(buf),
- }
- }
-
- fn subrange<'b>(&'b mut self, range: Range<usize>) -> DecodingBuffer<'b>
- where
- 'a: 'b,
- {
- match *self {
- DecodingBuffer::U8(ref mut buf) => DecodingBuffer::U8(&mut buf[range]),
- DecodingBuffer::U16(ref mut buf) => DecodingBuffer::U16(&mut buf[range]),
- DecodingBuffer::U32(ref mut buf) => DecodingBuffer::U32(&mut buf[range]),
- DecodingBuffer::U64(ref mut buf) => DecodingBuffer::U64(&mut buf[range]),
- DecodingBuffer::F32(ref mut buf) => DecodingBuffer::F32(&mut buf[range]),
- DecodingBuffer::F64(ref mut buf) => DecodingBuffer::F64(&mut buf[range]),
- DecodingBuffer::I8(ref mut buf) => DecodingBuffer::I8(&mut buf[range]),
- DecodingBuffer::I16(ref mut buf) => DecodingBuffer::I16(&mut buf[range]),
- DecodingBuffer::I32(ref mut buf) => DecodingBuffer::I32(&mut buf[range]),
- DecodingBuffer::I64(ref mut buf) => DecodingBuffer::I64(&mut buf[range]),
- }
- }
-
- fn as_bytes_mut(&mut self) -> &mut [u8] {
- match self {
- DecodingBuffer::U8(buf) => &mut *buf,
- DecodingBuffer::I8(buf) => bytecast::i8_as_ne_mut_bytes(buf),
- DecodingBuffer::U16(buf) => bytecast::u16_as_ne_mut_bytes(buf),
- DecodingBuffer::I16(buf) => bytecast::i16_as_ne_mut_bytes(buf),
- DecodingBuffer::U32(buf) => bytecast::u32_as_ne_mut_bytes(buf),
- DecodingBuffer::I32(buf) => bytecast::i32_as_ne_mut_bytes(buf),
- DecodingBuffer::U64(buf) => bytecast::u64_as_ne_mut_bytes(buf),
- DecodingBuffer::I64(buf) => bytecast::i64_as_ne_mut_bytes(buf),
- DecodingBuffer::F32(buf) => bytecast::f32_as_ne_mut_bytes(buf),
- DecodingBuffer::F64(buf) => bytecast::f64_as_ne_mut_bytes(buf),
- }
- }
-}
-
-#[derive(Debug, Copy, Clone, PartialEq)]
-/// Chunk type of the internal representation
-pub enum ChunkType {
- Strip,
- Tile,
-}
-
-/// Decoding limits
-#[derive(Clone, Debug)]
-pub struct Limits {
- /// The maximum size of any `DecodingResult` in bytes, the default is
- /// 256MiB. If the entire image is decoded at once, then this will
- /// be the maximum size of the image. If it is decoded one strip at a
- /// time, this will be the maximum size of a strip.
- pub decoding_buffer_size: usize,
- /// The maximum size of any ifd value in bytes, the default is
- /// 1MiB.
- pub ifd_value_size: usize,
- /// Maximum size for intermediate buffer which may be used to limit the amount of data read per
- /// segment even if the entire image is decoded at once.
- pub intermediate_buffer_size: usize,
- /// The purpose of this is to prevent all the fields of the struct from
- /// being public, as this would make adding new fields a major version
- /// bump.
- _non_exhaustive: (),
-}
-
-impl Limits {
- /// A configuration that does not impose any limits.
- ///
- /// This is a good start if the caller only wants to impose selective limits, contrary to the
- /// default limits which allows selectively disabling limits.
- ///
- /// Note that this configuration is likely to crash on excessively large images since,
- /// naturally, the machine running the program does not have infinite memory.
- pub fn unlimited() -> Limits {
- Limits {
- decoding_buffer_size: usize::max_value(),
- ifd_value_size: usize::max_value(),
- intermediate_buffer_size: usize::max_value(),
- _non_exhaustive: (),
- }
- }
-}
-
-impl Default for Limits {
- fn default() -> Limits {
- Limits {
- decoding_buffer_size: 256 * 1024 * 1024,
- intermediate_buffer_size: 128 * 1024 * 1024,
- ifd_value_size: 1024 * 1024,
- _non_exhaustive: (),
- }
- }
-}
-
-/// The representation of a TIFF decoder
-///
-/// Currently does not support decoding of interlaced images
-#[derive(Debug)]
-pub struct Decoder<R>
-where
- R: Read + Seek,
-{
- reader: SmartReader<R>,
- bigtiff: bool,
- limits: Limits,
- next_ifd: Option<u64>,
- ifd_offsets: Vec<u64>,
- seen_ifds: HashSet<u64>,
- image: Image,
-}
-
-trait Wrapping {
- fn wrapping_add(&self, other: Self) -> Self;
-}
-
-impl Wrapping for u8 {
- fn wrapping_add(&self, other: Self) -> Self {
- u8::wrapping_add(*self, other)
- }
-}
-
-impl Wrapping for u16 {
- fn wrapping_add(&self, other: Self) -> Self {
- u16::wrapping_add(*self, other)
- }
-}
-
-impl Wrapping for u32 {
- fn wrapping_add(&self, other: Self) -> Self {
- u32::wrapping_add(*self, other)
- }
-}
-
-impl Wrapping for u64 {
- fn wrapping_add(&self, other: Self) -> Self {
- u64::wrapping_add(*self, other)
- }
-}
-
-impl Wrapping for i8 {
- fn wrapping_add(&self, other: Self) -> Self {
- i8::wrapping_add(*self, other)
- }
-}
-
-impl Wrapping for i16 {
- fn wrapping_add(&self, other: Self) -> Self {
- i16::wrapping_add(*self, other)
- }
-}
-
-impl Wrapping for i32 {
- fn wrapping_add(&self, other: Self) -> Self {
- i32::wrapping_add(*self, other)
- }
-}
-
-impl Wrapping for i64 {
- fn wrapping_add(&self, other: Self) -> Self {
- i64::wrapping_add(*self, other)
- }
-}
-
-fn rev_hpredict_nsamp<T: Copy + Wrapping>(image: &mut [T], samples: usize) {
- for col in samples..image.len() {
- image[col] = image[col].wrapping_add(image[col - samples]);
- }
-}
-
-pub fn fp_predict_f32(input: &mut [u8], output: &mut [f32], samples: usize) {
- rev_hpredict_nsamp(input, samples);
- for i in 0..output.len() {
- // TODO: use f32::from_be_bytes() when we can (version 1.40)
- output[i] = f32::from_bits(u32::from_be_bytes([
- input[input.len() / 4 * 0 + i],
- input[input.len() / 4 * 1 + i],
- input[input.len() / 4 * 2 + i],
- input[input.len() / 4 * 3 + i],
- ]));
- }
-}
-
-pub fn fp_predict_f64(input: &mut [u8], output: &mut [f64], samples: usize) {
- rev_hpredict_nsamp(input, samples);
- for i in 0..output.len() {
- // TODO: use f64::from_be_bytes() when we can (version 1.40)
- output[i] = f64::from_bits(u64::from_be_bytes([
- input[input.len() / 8 * 0 + i],
- input[input.len() / 8 * 1 + i],
- input[input.len() / 8 * 2 + i],
- input[input.len() / 8 * 3 + i],
- input[input.len() / 8 * 4 + i],
- input[input.len() / 8 * 5 + i],
- input[input.len() / 8 * 6 + i],
- input[input.len() / 8 * 7 + i],
- ]));
- }
-}
-
-fn fix_endianness_and_predict(
- mut image: DecodingBuffer,
- samples: usize,
- byte_order: ByteOrder,
- predictor: Predictor,
-) {
- match predictor {
- Predictor::None => {
- fix_endianness(&mut image, byte_order);
- }
- Predictor::Horizontal => {
- fix_endianness(&mut image, byte_order);
- match image {
- DecodingBuffer::U8(buf) => rev_hpredict_nsamp(buf, samples),
- DecodingBuffer::U16(buf) => rev_hpredict_nsamp(buf, samples),
- DecodingBuffer::U32(buf) => rev_hpredict_nsamp(buf, samples),
- DecodingBuffer::U64(buf) => rev_hpredict_nsamp(buf, samples),
- DecodingBuffer::I8(buf) => rev_hpredict_nsamp(buf, samples),
- DecodingBuffer::I16(buf) => rev_hpredict_nsamp(buf, samples),
- DecodingBuffer::I32(buf) => rev_hpredict_nsamp(buf, samples),
- DecodingBuffer::I64(buf) => rev_hpredict_nsamp(buf, samples),
- DecodingBuffer::F32(_) | DecodingBuffer::F64(_) => {
- unreachable!("Caller should have validated arguments. Please file a bug.")
- }
- }
- }
- Predictor::FloatingPoint => {
- let mut buffer_copy = image.as_bytes_mut().to_vec();
- match image {
- DecodingBuffer::F32(buf) => fp_predict_f32(&mut buffer_copy, buf, samples),
- DecodingBuffer::F64(buf) => fp_predict_f64(&mut buffer_copy, buf, samples),
- _ => unreachable!("Caller should have validated arguments. Please file a bug."),
- }
- }
- }
-}
-
-fn invert_colors_unsigned<T>(buffer: &mut [T], max: T)
-where
- T: std::ops::Sub<T> + std::ops::Sub<Output = T> + Copy,
-{
- for datum in buffer.iter_mut() {
- *datum = max - *datum
- }
-}
-
-fn invert_colors_fp<T>(buffer: &mut [T], max: T)
-where
- T: std::ops::Sub<T> + std::ops::Sub<Output = T> + Copy,
-{
- for datum in buffer.iter_mut() {
- // FIXME: assumes [0, 1) range for floats
- *datum = max - *datum
- }
-}
-
-fn invert_colors(buf: &mut DecodingBuffer, color_type: ColorType) {
- match (color_type, buf) {
- (ColorType::Gray(64), DecodingBuffer::U64(ref mut buffer)) => {
- invert_colors_unsigned(buffer, 0xffff_ffff_ffff_ffff);
- }
- (ColorType::Gray(32), DecodingBuffer::U32(ref mut buffer)) => {
- invert_colors_unsigned(buffer, 0xffff_ffff);
- }
- (ColorType::Gray(16), DecodingBuffer::U16(ref mut buffer)) => {
- invert_colors_unsigned(buffer, 0xffff);
- }
- (ColorType::Gray(n), DecodingBuffer::U8(ref mut buffer)) if n <= 8 => {
- invert_colors_unsigned(buffer, 0xff);
- }
- (ColorType::Gray(32), DecodingBuffer::F32(ref mut buffer)) => {
- invert_colors_fp(buffer, 1.0);
- }
- (ColorType::Gray(64), DecodingBuffer::F64(ref mut buffer)) => {
- invert_colors_fp(buffer, 1.0);
- }
- _ => {}
- }
-}
-
-/// Fix endianness. If `byte_order` matches the host, then conversion is a no-op.
-fn fix_endianness(buf: &mut DecodingBuffer, byte_order: ByteOrder) {
- match byte_order {
- ByteOrder::LittleEndian => match buf {
- DecodingBuffer::U8(_) | DecodingBuffer::I8(_) => {}
- DecodingBuffer::U16(b) => b.iter_mut().for_each(|v| *v = u16::from_le(*v)),
- DecodingBuffer::I16(b) => b.iter_mut().for_each(|v| *v = i16::from_le(*v)),
- DecodingBuffer::U32(b) => b.iter_mut().for_each(|v| *v = u32::from_le(*v)),
- DecodingBuffer::I32(b) => b.iter_mut().for_each(|v| *v = i32::from_le(*v)),
- DecodingBuffer::U64(b) => b.iter_mut().for_each(|v| *v = u64::from_le(*v)),
- DecodingBuffer::I64(b) => b.iter_mut().for_each(|v| *v = i64::from_le(*v)),
- DecodingBuffer::F32(b) => b
- .iter_mut()
- .for_each(|v| *v = f32::from_bits(u32::from_le(v.to_bits()))),
- DecodingBuffer::F64(b) => b
- .iter_mut()
- .for_each(|v| *v = f64::from_bits(u64::from_le(v.to_bits()))),
- },
- ByteOrder::BigEndian => match buf {
- DecodingBuffer::U8(_) | DecodingBuffer::I8(_) => {}
- DecodingBuffer::U16(b) => b.iter_mut().for_each(|v| *v = u16::from_be(*v)),
- DecodingBuffer::I16(b) => b.iter_mut().for_each(|v| *v = i16::from_be(*v)),
- DecodingBuffer::U32(b) => b.iter_mut().for_each(|v| *v = u32::from_be(*v)),
- DecodingBuffer::I32(b) => b.iter_mut().for_each(|v| *v = i32::from_be(*v)),
- DecodingBuffer::U64(b) => b.iter_mut().for_each(|v| *v = u64::from_be(*v)),
- DecodingBuffer::I64(b) => b.iter_mut().for_each(|v| *v = i64::from_be(*v)),
- DecodingBuffer::F32(b) => b
- .iter_mut()
- .for_each(|v| *v = f32::from_bits(u32::from_be(v.to_bits()))),
- DecodingBuffer::F64(b) => b
- .iter_mut()
- .for_each(|v| *v = f64::from_bits(u64::from_be(v.to_bits()))),
- },
- };
-}
-
-impl<R: Read + Seek> Decoder<R> {
- /// Create a new decoder that decodes from the stream ```r```
- pub fn new(mut r: R) -> TiffResult<Decoder<R>> {
- let mut endianess = Vec::with_capacity(2);
- (&mut r).take(2).read_to_end(&mut endianess)?;
- let byte_order = match &*endianess {
- b"II" => ByteOrder::LittleEndian,
- b"MM" => ByteOrder::BigEndian,
- _ => {
- return Err(TiffError::FormatError(
- TiffFormatError::TiffSignatureNotFound,
- ))
- }
- };
- let mut reader = SmartReader::wrap(r, byte_order);
-
- let bigtiff = match reader.read_u16()? {
- 42 => false,
- 43 => {
- // Read bytesize of offsets (in bigtiff it's alway 8 but provide a way to move to 16 some day)
- if reader.read_u16()? != 8 {
- return Err(TiffError::FormatError(
- TiffFormatError::TiffSignatureNotFound,
- ));
- }
- // This constant should always be 0
- if reader.read_u16()? != 0 {
- return Err(TiffError::FormatError(
- TiffFormatError::TiffSignatureNotFound,
- ));
- }
- true
- }
- _ => {
- return Err(TiffError::FormatError(
- TiffFormatError::TiffSignatureInvalid,
- ))
- }
- };
- let next_ifd = if bigtiff {
- Some(reader.read_u64()?)
- } else {
- Some(u64::from(reader.read_u32()?))
- };
-
- let mut seen_ifds = HashSet::new();
- seen_ifds.insert(*next_ifd.as_ref().unwrap());
- let ifd_offsets = vec![*next_ifd.as_ref().unwrap()];
-
- let mut decoder = Decoder {
- reader,
- bigtiff,
- limits: Default::default(),
- next_ifd,
- ifd_offsets,
- seen_ifds,
- image: Image {
- ifd: None,
- width: 0,
- height: 0,
- bits_per_sample: vec![1],
- samples: 1,
- sample_format: vec![SampleFormat::Uint],
- photometric_interpretation: PhotometricInterpretation::BlackIsZero,
- compression_method: CompressionMethod::None,
- jpeg_tables: None,
- predictor: Predictor::None,
- chunk_type: ChunkType::Strip,
- strip_decoder: None,
- tile_attributes: None,
- chunk_offsets: Vec::new(),
- chunk_bytes: Vec::new(),
- },
- };
- decoder.next_image()?;
- Ok(decoder)
- }
-
- pub fn with_limits(mut self, limits: Limits) -> Decoder<R> {
- self.limits = limits;
- self
- }
-
- pub fn dimensions(&mut self) -> TiffResult<(u32, u32)> {
- Ok((self.image().width, self.image().height))
- }
-
- pub fn colortype(&mut self) -> TiffResult<ColorType> {
- self.image().colortype()
- }
-
- fn image(&self) -> &Image {
- &self.image
- }
-
- /// Loads the IFD at the specified index in the list, if one exists
- pub fn seek_to_image(&mut self, ifd_index: usize) -> TiffResult<()> {
- // Check whether we have seen this IFD before, if so then the index will be less than the length of the list of ifd offsets
- if ifd_index >= self.ifd_offsets.len() {
- // We possibly need to load in the next IFD
- if self.next_ifd.is_none() {
- return Err(TiffError::FormatError(
- TiffFormatError::ImageFileDirectoryNotFound,
- ));
- }
-
- loop {
- // Follow the list until we find the one we want, or we reach the end, whichever happens first
- let (_ifd, next_ifd) = self.next_ifd()?;
-
- if next_ifd.is_none() {
- break;
- }
-
- if ifd_index < self.ifd_offsets.len() {
- break;
- }
- }
- }
-
- // If the index is within the list of ifds then we can load the selected image/IFD
- if let Some(ifd_offset) = self.ifd_offsets.get(ifd_index) {
- let (ifd, _next_ifd) = Self::read_ifd(&mut self.reader, self.bigtiff, *ifd_offset)?;
-
- self.image = Image::from_reader(&mut self.reader, ifd, &self.limits, self.bigtiff)?;
-
- Ok(())
- } else {
- Err(TiffError::FormatError(
- TiffFormatError::ImageFileDirectoryNotFound,
- ))
- }
- }
-
- fn next_ifd(&mut self) -> TiffResult<(Directory, Option<u64>)> {
- if self.next_ifd.is_none() {
- return Err(TiffError::FormatError(
- TiffFormatError::ImageFileDirectoryNotFound,
- ));
- }
-
- let (ifd, next_ifd) = Self::read_ifd(
- &mut self.reader,
- self.bigtiff,
- self.next_ifd.take().unwrap(),
- )?;
-
- if let Some(next) = next_ifd {
- if !self.seen_ifds.insert(next) {
- return Err(TiffError::FormatError(TiffFormatError::CycleInOffsets));
- }
- self.next_ifd = Some(next);
- self.ifd_offsets.push(next);
- }
-
- Ok((ifd, next_ifd))
- }
-
- /// Reads in the next image.
- /// If there is no further image in the TIFF file a format error is returned.
- /// To determine whether there are more images call `TIFFDecoder::more_images` instead.
- pub fn next_image(&mut self) -> TiffResult<()> {
- let (ifd, _next_ifd) = self.next_ifd()?;
-
- self.image = Image::from_reader(&mut self.reader, ifd, &self.limits, self.bigtiff)?;
- Ok(())
- }
-
- /// Returns `true` if there is at least one more image available.
- pub fn more_images(&self) -> bool {
- self.next_ifd.is_some()
- }
-
- /// Returns the byte_order
- pub fn byte_order(&self) -> ByteOrder {
- self.reader.byte_order
- }
-
- #[inline]
- pub fn read_ifd_offset(&mut self) -> Result<u64, io::Error> {
- if self.bigtiff {
- self.read_long8()
- } else {
- self.read_long().map(u64::from)
- }
- }
-
- /// Reads a TIFF byte value
- #[inline]
- pub fn read_byte(&mut self) -> Result<u8, io::Error> {
- let mut buf = [0; 1];
- self.reader.read_exact(&mut buf)?;
- Ok(buf[0])
- }
-
- /// Reads a TIFF short value
- #[inline]
- pub fn read_short(&mut self) -> Result<u16, io::Error> {
- self.reader.read_u16()
- }
-
- /// Reads a TIFF sshort value
- #[inline]
- pub fn read_sshort(&mut self) -> Result<i16, io::Error> {
- self.reader.read_i16()
- }
-
- /// Reads a TIFF long value
- #[inline]
- pub fn read_long(&mut self) -> Result<u32, io::Error> {
- self.reader.read_u32()
- }
-
- /// Reads a TIFF slong value
- #[inline]
- pub fn read_slong(&mut self) -> Result<i32, io::Error> {
- self.reader.read_i32()
- }
-
- /// Reads a TIFF float value
- #[inline]
- pub fn read_float(&mut self) -> Result<f32, io::Error> {
- self.reader.read_f32()
- }
-
- /// Reads a TIFF double value
- #[inline]
- pub fn read_double(&mut self) -> Result<f64, io::Error> {
- self.reader.read_f64()
- }
-
- #[inline]
- pub fn read_long8(&mut self) -> Result<u64, io::Error> {
- self.reader.read_u64()
- }
-
- #[inline]
- pub fn read_slong8(&mut self) -> Result<i64, io::Error> {
- self.reader.read_i64()
- }
-
- /// Reads a string
- #[inline]
- pub fn read_string(&mut self, length: usize) -> TiffResult<String> {
- let mut out = vec![0; length];
- self.reader.read_exact(&mut out)?;
- // Strings may be null-terminated, so we trim anything downstream of the null byte
- if let Some(first) = out.iter().position(|&b| b == 0) {
- out.truncate(first);
- }
- Ok(String::from_utf8(out)?)
- }
-
- /// Reads a TIFF IFA offset/value field
- #[inline]
- pub fn read_offset(&mut self) -> TiffResult<[u8; 4]> {
- if self.bigtiff {
- return Err(TiffError::FormatError(
- TiffFormatError::InconsistentSizesEncountered,
- ));
- }
- let mut val = [0; 4];
- self.reader.read_exact(&mut val)?;
- Ok(val)
- }
-
- /// Reads a TIFF IFA offset/value field
- #[inline]
- pub fn read_offset_u64(&mut self) -> Result<[u8; 8], io::Error> {
- let mut val = [0; 8];
- self.reader.read_exact(&mut val)?;
- Ok(val)
- }
-
- /// Moves the cursor to the specified offset
- #[inline]
- pub fn goto_offset(&mut self, offset: u32) -> io::Result<()> {
- self.goto_offset_u64(offset.into())
- }
-
- #[inline]
- pub fn goto_offset_u64(&mut self, offset: u64) -> io::Result<()> {
- self.reader.seek(io::SeekFrom::Start(offset)).map(|_| ())
- }
-
- /// Reads a IFD entry.
- // An IFD entry has four fields:
- //
- // Tag 2 bytes
- // Type 2 bytes
- // Count 4 bytes
- // Value 4 bytes either a pointer the value itself
- fn read_entry(
- reader: &mut SmartReader<R>,
- bigtiff: bool,
- ) -> TiffResult<Option<(Tag, ifd::Entry)>> {
- let tag = Tag::from_u16_exhaustive(reader.read_u16()?);
- let type_ = match Type::from_u16(reader.read_u16()?) {
- Some(t) => t,
- None => {
- // Unknown type. Skip this entry according to spec.
- reader.read_u32()?;
- reader.read_u32()?;
- return Ok(None);
- }
- };
- let entry = if bigtiff {
- let mut offset = [0; 8];
-
- let count = reader.read_u64()?;
- reader.read_exact(&mut offset)?;
- ifd::Entry::new_u64(type_, count, offset)
- } else {
- let mut offset = [0; 4];
-
- let count = reader.read_u32()?;
- reader.read_exact(&mut offset)?;
- ifd::Entry::new(type_, count, offset)
- };
- Ok(Some((tag, entry)))
- }
-
- /// Reads the IFD starting at the indicated location.
- fn read_ifd(
- reader: &mut SmartReader<R>,
- bigtiff: bool,
- ifd_location: u64,
- ) -> TiffResult<(Directory, Option<u64>)> {
- reader.goto_offset(ifd_location)?;
-
- let mut dir: Directory = HashMap::new();
-
- let num_tags = if bigtiff {
- reader.read_u64()?
- } else {
- reader.read_u16()?.into()
- };
- for _ in 0..num_tags {
- let (tag, entry) = match Self::read_entry(reader, bigtiff)? {
- Some(val) => val,
- None => {
- continue;
- } // Unknown data type in tag, skip
- };
- dir.insert(tag, entry);
- }
-
- let next_ifd = if bigtiff {
- reader.read_u64()?
- } else {
- reader.read_u32()?.into()
- };
-
- let next_ifd = match next_ifd {
- 0 => None,
- _ => Some(next_ifd),
- };
-
- Ok((dir, next_ifd))
- }
-
- /// Tries to retrieve a tag.
- /// Return `Ok(None)` if the tag is not present.
- pub fn find_tag(&mut self, tag: Tag) -> TiffResult<Option<ifd::Value>> {
- let entry = match self.image().ifd.as_ref().unwrap().get(&tag) {
- None => return Ok(None),
- Some(entry) => entry.clone(),
- };
-
- Ok(Some(entry.val(
- &self.limits,
- self.bigtiff,
- &mut self.reader,
- )?))
- }
-
- /// Tries to retrieve a tag and convert it to the desired unsigned type.
- pub fn find_tag_unsigned<T: TryFrom<u64>>(&mut self, tag: Tag) -> TiffResult<Option<T>> {
- self.find_tag(tag)?
- .map(|v| v.into_u64())
- .transpose()?
- .map(|value| {
- T::try_from(value).map_err(|_| TiffFormatError::InvalidTagValueType(tag).into())
- })
- .transpose()
- }
-
- /// Tries to retrieve a vector of all a tag's values and convert them to
- /// the desired unsigned type.
- pub fn find_tag_unsigned_vec<T: TryFrom<u64>>(
- &mut self,
- tag: Tag,
- ) -> TiffResult<Option<Vec<T>>> {
- self.find_tag(tag)?
- .map(|v| v.into_u64_vec())
- .transpose()?
- .map(|v| {
- v.into_iter()
- .map(|u| {
- T::try_from(u).map_err(|_| TiffFormatError::InvalidTagValueType(tag).into())
- })
- .collect()
- })
- .transpose()
- }
-
- /// Tries to retrieve a tag and convert it to the desired unsigned type.
- /// Returns an error if the tag is not present.
- pub fn get_tag_unsigned<T: TryFrom<u64>>(&mut self, tag: Tag) -> TiffResult<T> {
- self.find_tag_unsigned(tag)?
- .ok_or_else(|| TiffFormatError::RequiredTagNotFound(tag).into())
- }
-
- /// Tries to retrieve a tag.
- /// Returns an error if the tag is not present
- pub fn get_tag(&mut self, tag: Tag) -> TiffResult<ifd::Value> {
- match self.find_tag(tag)? {
- Some(val) => Ok(val),
- None => Err(TiffError::FormatError(
- TiffFormatError::RequiredTagNotFound(tag),
- )),
- }
- }
-
- /// Tries to retrieve a tag and convert it to the desired type.
- pub fn get_tag_u32(&mut self, tag: Tag) -> TiffResult<u32> {
- self.get_tag(tag)?.into_u32()
- }
- pub fn get_tag_u64(&mut self, tag: Tag) -> TiffResult<u64> {
- self.get_tag(tag)?.into_u64()
- }
-
- /// Tries to retrieve a tag and convert it to the desired type.
- pub fn get_tag_f32(&mut self, tag: Tag) -> TiffResult<f32> {
- self.get_tag(tag)?.into_f32()
- }
-
- /// Tries to retrieve a tag and convert it to the desired type.
- pub fn get_tag_f64(&mut self, tag: Tag) -> TiffResult<f64> {
- self.get_tag(tag)?.into_f64()
- }
-
- /// Tries to retrieve a tag and convert it to the desired type.
- pub fn get_tag_u32_vec(&mut self, tag: Tag) -> TiffResult<Vec<u32>> {
- self.get_tag(tag)?.into_u32_vec()
- }
-
- pub fn get_tag_u16_vec(&mut self, tag: Tag) -> TiffResult<Vec<u16>> {
- self.get_tag(tag)?.into_u16_vec()
- }
- pub fn get_tag_u64_vec(&mut self, tag: Tag) -> TiffResult<Vec<u64>> {
- self.get_tag(tag)?.into_u64_vec()
- }
-
- /// Tries to retrieve a tag and convert it to the desired type.
- pub fn get_tag_f32_vec(&mut self, tag: Tag) -> TiffResult<Vec<f32>> {
- self.get_tag(tag)?.into_f32_vec()
- }
-
- /// Tries to retrieve a tag and convert it to the desired type.
- pub fn get_tag_f64_vec(&mut self, tag: Tag) -> TiffResult<Vec<f64>> {
- self.get_tag(tag)?.into_f64_vec()
- }
-
- /// Tries to retrieve a tag and convert it to a 8bit vector.
- pub fn get_tag_u8_vec(&mut self, tag: Tag) -> TiffResult<Vec<u8>> {
- self.get_tag(tag)?.into_u8_vec()
- }
-
- /// Tries to retrieve a tag and convert it to a ascii vector.
- pub fn get_tag_ascii_string(&mut self, tag: Tag) -> TiffResult<String> {
- self.get_tag(tag)?.into_string()
- }
-
- fn check_chunk_type(&self, expected: ChunkType) -> TiffResult<()> {
- if expected != self.image().chunk_type {
- return Err(TiffError::UsageError(UsageError::InvalidChunkType(
- expected,
- self.image().chunk_type,
- )));
- }
-
- Ok(())
- }
-
- /// The chunk type (Strips / Tiles) of the image
- pub fn get_chunk_type(&self) -> ChunkType {
- self.image().chunk_type
- }
-
- /// Number of strips in image
- pub fn strip_count(&mut self) -> TiffResult<u32> {
- self.check_chunk_type(ChunkType::Strip)?;
- let rows_per_strip = self.image().strip_decoder.as_ref().unwrap().rows_per_strip;
-
- if rows_per_strip == 0 {
- return Ok(0);
- }
-
- // rows_per_strip - 1 can never fail since we know it's at least 1
- let height = match self.image().height.checked_add(rows_per_strip - 1) {
- Some(h) => h,
- None => return Err(TiffError::IntSizeError),
- };
-
- Ok(height / rows_per_strip)
- }
-
- /// Number of tiles in image
- pub fn tile_count(&mut self) -> TiffResult<u32> {
- self.check_chunk_type(ChunkType::Tile)?;
- Ok(u32::try_from(self.image().chunk_offsets.len())?)
- }
-
- pub fn read_chunk_to_buffer(
- &mut self,
- mut buffer: DecodingBuffer,
- chunk_index: u32,
- output_width: usize,
- ) -> TiffResult<()> {
- let offset = self.image.chunk_file_range(chunk_index)?.0;
- self.goto_offset_u64(offset)?;
-
- let byte_order = self.reader.byte_order;
-
- self.image.expand_chunk(
- &mut self.reader,
- buffer.copy(),
- output_width,
- byte_order,
- chunk_index,
- )?;
-
- Ok(())
- }
-
- fn result_buffer(&self, width: usize, height: usize) -> TiffResult<DecodingResult> {
- let buffer_size = match width
- .checked_mul(height)
- .and_then(|x| x.checked_mul(self.image().bits_per_sample.len()))
- {
- Some(s) => s,
- None => return Err(TiffError::LimitsExceeded),
- };
-
- let max_sample_bits = self
- .image()
- .bits_per_sample
- .iter()
- .cloned()
- .max()
- .unwrap_or(8);
- match self
- .image()
- .sample_format
- .first()
- .unwrap_or(&SampleFormat::Uint)
- {
- SampleFormat::Uint => match max_sample_bits {
- n if n <= 8 => DecodingResult::new_u8(buffer_size, &self.limits),
- n if n <= 16 => DecodingResult::new_u16(buffer_size, &self.limits),
- n if n <= 32 => DecodingResult::new_u32(buffer_size, &self.limits),
- n if n <= 64 => DecodingResult::new_u64(buffer_size, &self.limits),
- n => Err(TiffError::UnsupportedError(
- TiffUnsupportedError::UnsupportedBitsPerChannel(n),
- )),
- },
- SampleFormat::IEEEFP => match max_sample_bits {
- 32 => DecodingResult::new_f32(buffer_size, &self.limits),
- 64 => DecodingResult::new_f64(buffer_size, &self.limits),
- n => Err(TiffError::UnsupportedError(
- TiffUnsupportedError::UnsupportedBitsPerChannel(n),
- )),
- },
- SampleFormat::Int => match max_sample_bits {
- n if n <= 8 => DecodingResult::new_i8(buffer_size, &self.limits),
- n if n <= 16 => DecodingResult::new_i16(buffer_size, &self.limits),
- n if n <= 32 => DecodingResult::new_i32(buffer_size, &self.limits),
- n if n <= 64 => DecodingResult::new_i64(buffer_size, &self.limits),
- n => Err(TiffError::UnsupportedError(
- TiffUnsupportedError::UnsupportedBitsPerChannel(n),
- )),
- },
- format => {
- Err(TiffUnsupportedError::UnsupportedSampleFormat(vec![format.clone()]).into())
- }
- }
- }
-
- /// Read the specified chunk (at index `chunk_index`) and return the binary data as a Vector.
- pub fn read_chunk(&mut self, chunk_index: u32) -> TiffResult<DecodingResult> {
- let data_dims = self.image().chunk_data_dimensions(chunk_index)?;
-
- let mut result = self.result_buffer(data_dims.0 as usize, data_dims.1 as usize)?;
-
- self.read_chunk_to_buffer(result.as_buffer(0), chunk_index, data_dims.0 as usize)?;
-
- Ok(result)
- }
-
- /// Returns the default chunk size for the current image. Any given chunk in the image is at most as large as
- /// the value returned here. For the size of the data (chunk minus padding), use `chunk_data_dimensions`.
- pub fn chunk_dimensions(&self) -> (u32, u32) {
- self.image().chunk_dimensions().unwrap()
- }
-
- /// Returns the size of the data in the chunk with the specified index. This is the default size of the chunk,
- /// minus any padding.
- pub fn chunk_data_dimensions(&self, chunk_index: u32) -> (u32, u32) {
- self.image()
- .chunk_data_dimensions(chunk_index)
- .expect("invalid chunk_index")
- }
-
- /// Decodes the entire image and return it as a Vector
- pub fn read_image(&mut self) -> TiffResult<DecodingResult> {
- let width = self.image().width;
- let height = self.image().height;
- let mut result = self.result_buffer(width as usize, height as usize)?;
- if width == 0 || height == 0 {
- return Ok(result);
- }
-
- let chunk_dimensions = self.image().chunk_dimensions()?;
- let chunk_dimensions = (
- chunk_dimensions.0.min(width),
- chunk_dimensions.1.min(height),
- );
- if chunk_dimensions.0 == 0 || chunk_dimensions.1 == 0 {
- return Err(TiffError::FormatError(
- TiffFormatError::InconsistentSizesEncountered,
- ));
- }
-
- let samples = self.image().bits_per_sample.len();
- if samples == 0 {
- return Err(TiffError::FormatError(
- TiffFormatError::InconsistentSizesEncountered,
- ));
- }
-
- let chunks_across = ((width - 1) / chunk_dimensions.0 + 1) as usize;
- let strip_samples = width as usize * chunk_dimensions.1 as usize * samples;
-
- for chunk in 0..self.image().chunk_offsets.len() {
- self.goto_offset_u64(self.image().chunk_offsets[chunk])?;
-
- let x = chunk % chunks_across;
- let y = chunk / chunks_across;
- let buffer_offset = y * strip_samples + x * chunk_dimensions.0 as usize * samples;
- let byte_order = self.reader.byte_order;
- self.image.expand_chunk(
- &mut self.reader,
- result.as_buffer(buffer_offset).copy(),
- width as usize,
- byte_order,
- chunk as u32,
- )?;
- }
-
- Ok(result)
- }
-}
diff --git a/vendor/tiff/src/decoder/stream.rs b/vendor/tiff/src/decoder/stream.rs
deleted file mode 100644
index e0323c2..0000000
--- a/vendor/tiff/src/decoder/stream.rs
+++ /dev/null
@@ -1,435 +0,0 @@
-//! All IO functionality needed for TIFF decoding
-
-use std::convert::TryFrom;
-use std::io::{self, BufRead, BufReader, Read, Seek, SeekFrom, Take};
-use std::sync::Arc;
-
-/// Byte order of the TIFF file.
-#[derive(Clone, Copy, Debug)]
-pub enum ByteOrder {
- /// little endian byte order
- LittleEndian,
- /// big endian byte order
- BigEndian,
-}
-
-/// Reader that is aware of the byte order.
-pub trait EndianReader: Read {
- /// Byte order that should be adhered to
- fn byte_order(&self) -> ByteOrder;
-
- /// Reads an u16
- #[inline(always)]
- fn read_u16(&mut self) -> Result<u16, io::Error> {
- let mut n = [0u8; 2];
- self.read_exact(&mut n)?;
- Ok(match self.byte_order() {
- ByteOrder::LittleEndian => u16::from_le_bytes(n),
- ByteOrder::BigEndian => u16::from_be_bytes(n),
- })
- }
-
- /// Reads an i8
- #[inline(always)]
- fn read_i8(&mut self) -> Result<i8, io::Error> {
- let mut n = [0u8; 1];
- self.read_exact(&mut n)?;
- Ok(match self.byte_order() {
- ByteOrder::LittleEndian => i8::from_le_bytes(n),
- ByteOrder::BigEndian => i8::from_be_bytes(n),
- })
- }
-
- /// Reads an i16
- #[inline(always)]
- fn read_i16(&mut self) -> Result<i16, io::Error> {
- let mut n = [0u8; 2];
- self.read_exact(&mut n)?;
- Ok(match self.byte_order() {
- ByteOrder::LittleEndian => i16::from_le_bytes(n),
- ByteOrder::BigEndian => i16::from_be_bytes(n),
- })
- }
-
- /// Reads an u32
- #[inline(always)]
- fn read_u32(&mut self) -> Result<u32, io::Error> {
- let mut n = [0u8; 4];
- self.read_exact(&mut n)?;
- Ok(match self.byte_order() {
- ByteOrder::LittleEndian => u32::from_le_bytes(n),
- ByteOrder::BigEndian => u32::from_be_bytes(n),
- })
- }
-
- /// Reads an i32
- #[inline(always)]
- fn read_i32(&mut self) -> Result<i32, io::Error> {
- let mut n = [0u8; 4];
- self.read_exact(&mut n)?;
- Ok(match self.byte_order() {
- ByteOrder::LittleEndian => i32::from_le_bytes(n),
- ByteOrder::BigEndian => i32::from_be_bytes(n),
- })
- }
-
- /// Reads an u64
- #[inline(always)]
- fn read_u64(&mut self) -> Result<u64, io::Error> {
- let mut n = [0u8; 8];
- self.read_exact(&mut n)?;
- Ok(match self.byte_order() {
- ByteOrder::LittleEndian => u64::from_le_bytes(n),
- ByteOrder::BigEndian => u64::from_be_bytes(n),
- })
- }
-
- /// Reads an i64
- #[inline(always)]
- fn read_i64(&mut self) -> Result<i64, io::Error> {
- let mut n = [0u8; 8];
- self.read_exact(&mut n)?;
- Ok(match self.byte_order() {
- ByteOrder::LittleEndian => i64::from_le_bytes(n),
- ByteOrder::BigEndian => i64::from_be_bytes(n),
- })
- }
-
- /// Reads an f32
- #[inline(always)]
- fn read_f32(&mut self) -> Result<f32, io::Error> {
- let mut n = [0u8; 4];
- self.read_exact(&mut n)?;
- Ok(f32::from_bits(match self.byte_order() {
- ByteOrder::LittleEndian => u32::from_le_bytes(n),
- ByteOrder::BigEndian => u32::from_be_bytes(n),
- }))
- }
-
- /// Reads an f64
- #[inline(always)]
- fn read_f64(&mut self) -> Result<f64, io::Error> {
- let mut n = [0u8; 8];
- self.read_exact(&mut n)?;
- Ok(f64::from_bits(match self.byte_order() {
- ByteOrder::LittleEndian => u64::from_le_bytes(n),
- ByteOrder::BigEndian => u64::from_be_bytes(n),
- }))
- }
-}
-
-///
-/// # READERS
-///
-
-///
-/// ## Deflate Reader
-///
-
-pub type DeflateReader<R> = flate2::read::ZlibDecoder<R>;
-
-///
-/// ## LZW Reader
-///
-
-/// Reader that decompresses LZW streams
-pub struct LZWReader<R: Read> {
- reader: BufReader<Take<R>>,
- decoder: weezl::decode::Decoder,
-}
-
-impl<R: Read> LZWReader<R> {
- /// Wraps a reader
- pub fn new(reader: R, compressed_length: usize) -> LZWReader<R> {
- Self {
- reader: BufReader::with_capacity(
- (32 * 1024).min(compressed_length),
- reader.take(u64::try_from(compressed_length).unwrap()),
- ),
- decoder: weezl::decode::Decoder::with_tiff_size_switch(weezl::BitOrder::Msb, 8),
- }
- }
-}
-
-impl<R: Read> Read for LZWReader<R> {
- fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
- loop {
- let result = self.decoder.decode_bytes(self.reader.fill_buf()?, buf);
- self.reader.consume(result.consumed_in);
-
- match result.status {
- Ok(weezl::LzwStatus::Ok) => {
- if result.consumed_out == 0 {
- continue;
- } else {
- return Ok(result.consumed_out);
- }
- }
- Ok(weezl::LzwStatus::NoProgress) => {
- assert_eq!(result.consumed_in, 0);
- assert_eq!(result.consumed_out, 0);
- assert!(self.reader.buffer().is_empty());
- return Err(io::Error::new(
- io::ErrorKind::UnexpectedEof,
- "no lzw end code found",
- ));
- }
- Ok(weezl::LzwStatus::Done) => {
- return Ok(result.consumed_out);
- }
- Err(err) => return Err(io::Error::new(io::ErrorKind::InvalidData, err)),
- }
- }
- }
-}
-
-///
-/// ## JPEG Reader (for "new-style" JPEG format (TIFF compression tag 7))
-///
-
-pub(crate) struct JpegReader {
- jpeg_tables: Option<Arc<Vec<u8>>>,
-
- buffer: io::Cursor<Vec<u8>>,
-
- offset: usize,
-}
-
-impl JpegReader {
- /// Constructs new JpegReader wrapping a SmartReader.
- /// Because JPEG compression in TIFF allows to save quantization and/or huffman tables in one
- /// central location, the constructor accepts this data as `jpeg_tables` here containing either
- /// or both.
- /// These `jpeg_tables` are simply prepended to the remaining jpeg image data.
- /// Because these `jpeg_tables` start with a `SOI` (HEX: `0xFFD8`) or __start of image__ marker
- /// which is also at the beginning of the remaining JPEG image data and would
- /// confuse the JPEG renderer, one of these has to be taken off. In this case the first two
- /// bytes of the remaining JPEG data is removed because it follows `jpeg_tables`.
- /// Similary, `jpeg_tables` ends with a `EOI` (HEX: `0xFFD9`) or __end of image__ marker,
- /// this has to be removed as well (last two bytes of `jpeg_tables`).
- pub fn new<R: Read>(
- mut reader: R,
- length: u64,
- jpeg_tables: Option<Arc<Vec<u8>>>,
- ) -> io::Result<JpegReader> {
- // Read jpeg image data
- let mut segment = vec![0; length as usize];
-
- reader.read_exact(&mut segment[..])?;
-
- match jpeg_tables {
- Some(jpeg_tables) => {
- assert!(
- jpeg_tables.len() >= 2,
- "jpeg_tables, if given, must be at least 2 bytes long. Got {:?}",
- jpeg_tables
- );
-
- assert!(
- length >= 2,
- "if jpeg_tables is given, length must be at least 2 bytes long, got {}",
- length
- );
-
- let mut buffer = io::Cursor::new(segment);
- // Skip the first two bytes (marker bytes)
- buffer.seek(SeekFrom::Start(2))?;
-
- Ok(JpegReader {
- buffer,
- jpeg_tables: Some(jpeg_tables),
- offset: 0,
- })
- }
- None => Ok(JpegReader {
- buffer: io::Cursor::new(segment),
- jpeg_tables: None,
- offset: 0,
- }),
- }
- }
-}
-
-impl Read for JpegReader {
- // #[inline]
- fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
- let mut start = 0;
-
- if let Some(jpeg_tables) = &self.jpeg_tables {
- if jpeg_tables.len() - 2 > self.offset {
- // Read (rest of) jpeg_tables to buf (without the last two bytes)
- let size_remaining = jpeg_tables.len() - self.offset - 2;
- let to_copy = size_remaining.min(buf.len());
-
- buf[start..start + to_copy]
- .copy_from_slice(&jpeg_tables[self.offset..self.offset + to_copy]);
-
- self.offset += to_copy;
-
- if to_copy == buf.len() {
- return Ok(to_copy);
- }
-
- start += to_copy;
- }
- }
-
- let read = self.buffer.read(&mut buf[start..])?;
- self.offset += read;
-
- Ok(read + start)
- }
-}
-
-///
-/// ## PackBits Reader
-///
-
-enum PackBitsReaderState {
- Header,
- Literal,
- Repeat { value: u8 },
-}
-
-/// Reader that unpacks Apple's `PackBits` format
-pub struct PackBitsReader<R: Read> {
- reader: Take<R>,
- state: PackBitsReaderState,
- count: usize,
-}
-
-impl<R: Read> PackBitsReader<R> {
- /// Wraps a reader
- pub fn new(reader: R, length: u64) -> Self {
- Self {
- reader: reader.take(length),
- state: PackBitsReaderState::Header,
- count: 0,
- }
- }
-}
-
-impl<R: Read> Read for PackBitsReader<R> {
- fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
- while let PackBitsReaderState::Header = self.state {
- if self.reader.limit() == 0 {
- return Ok(0);
- }
- let mut header: [u8; 1] = [0];
- self.reader.read_exact(&mut header)?;
- let h = header[0] as i8;
- if h >= -127 && h <= -1 {
- let mut data: [u8; 1] = [0];
- self.reader.read_exact(&mut data)?;
- self.state = PackBitsReaderState::Repeat { value: data[0] };
- self.count = (1 - h as isize) as usize;
- } else if h >= 0 {
- self.state = PackBitsReaderState::Literal;
- self.count = h as usize + 1;
- } else {
- // h = -128 is a no-op.
- }
- }
-
- let length = buf.len().min(self.count);
- let actual = match self.state {
- PackBitsReaderState::Literal => self.reader.read(&mut buf[..length])?,
- PackBitsReaderState::Repeat { value } => {
- for b in &mut buf[..length] {
- *b = value;
- }
-
- length
- }
- PackBitsReaderState::Header => unreachable!(),
- };
-
- self.count -= actual;
- if self.count == 0 {
- self.state = PackBitsReaderState::Header;
- }
- return Ok(actual);
- }
-}
-
-///
-/// ## SmartReader Reader
-///
-
-/// Reader that is aware of the byte order.
-#[derive(Debug)]
-pub struct SmartReader<R>
-where
- R: Read,
-{
- reader: R,
- pub byte_order: ByteOrder,
-}
-
-impl<R> SmartReader<R>
-where
- R: Read,
-{
- /// Wraps a reader
- pub fn wrap(reader: R, byte_order: ByteOrder) -> SmartReader<R> {
- SmartReader { reader, byte_order }
- }
- pub fn into_inner(self) -> R {
- self.reader
- }
-}
-impl<R: Read + Seek> SmartReader<R> {
- pub fn goto_offset(&mut self, offset: u64) -> io::Result<()> {
- self.seek(io::SeekFrom::Start(offset)).map(|_| ())
- }
-}
-
-impl<R> EndianReader for SmartReader<R>
-where
- R: Read,
-{
- #[inline(always)]
- fn byte_order(&self) -> ByteOrder {
- self.byte_order
- }
-}
-
-impl<R: Read> Read for SmartReader<R> {
- #[inline]
- fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
- self.reader.read(buf)
- }
-}
-
-impl<R: Read + Seek> Seek for SmartReader<R> {
- #[inline]
- fn seek(&mut self, pos: io::SeekFrom) -> io::Result<u64> {
- self.reader.seek(pos)
- }
-}
-
-#[cfg(test)]
-mod test {
- use super::*;
-
- #[test]
- fn test_packbits() {
- let encoded = vec![
- 0xFE, 0xAA, 0x02, 0x80, 0x00, 0x2A, 0xFD, 0xAA, 0x03, 0x80, 0x00, 0x2A, 0x22, 0xF7,
- 0xAA,
- ];
- let encoded_len = encoded.len();
-
- let buff = io::Cursor::new(encoded);
- let mut decoder = PackBitsReader::new(buff, encoded_len as u64);
-
- let mut decoded = Vec::new();
- decoder.read_to_end(&mut decoded).unwrap();
-
- let expected = vec![
- 0xAA, 0xAA, 0xAA, 0x80, 0x00, 0x2A, 0xAA, 0xAA, 0xAA, 0xAA, 0x80, 0x00, 0x2A, 0x22,
- 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
- ];
- assert_eq!(decoded, expected);
- }
-}
diff --git a/vendor/tiff/src/decoder/tag_reader.rs b/vendor/tiff/src/decoder/tag_reader.rs
deleted file mode 100644
index 837da40..0000000
--- a/vendor/tiff/src/decoder/tag_reader.rs
+++ /dev/null
@@ -1,45 +0,0 @@
-use std::convert::TryFrom;
-use std::io::{Read, Seek};
-
-use crate::tags::Tag;
-use crate::{TiffError, TiffFormatError, TiffResult};
-
-use super::ifd::{Directory, Value};
-use super::stream::SmartReader;
-use super::Limits;
-
-pub(crate) struct TagReader<'a, R: Read + Seek> {
- pub reader: &'a mut SmartReader<R>,
- pub ifd: &'a Directory,
- pub limits: &'a Limits,
- pub bigtiff: bool,
-}
-impl<'a, R: Read + Seek> TagReader<'a, R> {
- pub(crate) fn find_tag(&mut self, tag: Tag) -> TiffResult<Option<Value>> {
- Ok(match self.ifd.get(&tag) {
- Some(entry) => Some(entry.clone().val(self.limits, self.bigtiff, self.reader)?),
- None => None,
- })
- }
- pub(crate) fn require_tag(&mut self, tag: Tag) -> TiffResult<Value> {
- match self.find_tag(tag)? {
- Some(val) => Ok(val),
- None => Err(TiffError::FormatError(
- TiffFormatError::RequiredTagNotFound(tag),
- )),
- }
- }
- pub fn find_tag_uint_vec<T: TryFrom<u64>>(&mut self, tag: Tag) -> TiffResult<Option<Vec<T>>> {
- self.find_tag(tag)?
- .map(|v| v.into_u64_vec())
- .transpose()?
- .map(|v| {
- v.into_iter()
- .map(|u| {
- T::try_from(u).map_err(|_| TiffFormatError::InvalidTagValueType(tag).into())
- })
- .collect()
- })
- .transpose()
- }
-}
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(())
- }
-}
diff --git a/vendor/tiff/src/error.rs b/vendor/tiff/src/error.rs
deleted file mode 100644
index a401c6f..0000000
--- a/vendor/tiff/src/error.rs
+++ /dev/null
@@ -1,369 +0,0 @@
-use std::error::Error;
-use std::fmt;
-use std::fmt::Display;
-use std::io;
-use std::str;
-use std::string;
-use std::sync::Arc;
-
-use jpeg::UnsupportedFeature;
-
-use crate::decoder::{ifd::Value, ChunkType};
-use crate::tags::{
- CompressionMethod, PhotometricInterpretation, PlanarConfiguration, SampleFormat, Tag,
-};
-use crate::ColorType;
-
-use crate::weezl::LzwError;
-
-/// Tiff error kinds.
-#[derive(Debug)]
-pub enum TiffError {
- /// The Image is not formatted properly.
- FormatError(TiffFormatError),
-
- /// The Decoder does not support features required by the image.
- UnsupportedError(TiffUnsupportedError),
-
- /// An I/O Error occurred while decoding the image.
- IoError(io::Error),
-
- /// The Limits of the Decoder is exceeded.
- LimitsExceeded,
-
- /// An integer conversion to or from a platform size failed, either due to
- /// limits of the platform size or limits of the format.
- IntSizeError,
-
- /// The image does not support the requested operation
- UsageError(UsageError),
-}
-
-/// The image is not formatted properly.
-///
-/// This indicates that the encoder producing the image might behave incorrectly or that the input
-/// file has been corrupted.
-///
-/// The list of variants may grow to incorporate errors of future features. Matching against this
-/// exhaustively is not covered by interface stability guarantees.
-#[derive(Debug, Clone, PartialEq)]
-#[non_exhaustive]
-pub enum TiffFormatError {
- TiffSignatureNotFound,
- TiffSignatureInvalid,
- ImageFileDirectoryNotFound,
- InconsistentSizesEncountered,
- UnexpectedCompressedData {
- actual_bytes: usize,
- required_bytes: usize,
- },
- InconsistentStripSamples {
- actual_samples: usize,
- required_samples: usize,
- },
- InvalidDimensions(u32, u32),
- InvalidTag,
- InvalidTagValueType(Tag),
- RequiredTagNotFound(Tag),
- UnknownPredictor(u16),
- ByteExpected(Value),
- UnsignedIntegerExpected(Value),
- SignedIntegerExpected(Value),
- Format(String),
- RequiredTagEmpty(Tag),
- StripTileTagConflict,
- CycleInOffsets,
- JpegDecoder(JpegDecoderError),
-}
-
-impl fmt::Display for TiffFormatError {
- fn fmt(&self, fmt: &mut fmt::Formatter) -> Result<(), fmt::Error> {
- use self::TiffFormatError::*;
- match *self {
- TiffSignatureNotFound => write!(fmt, "TIFF signature not found."),
- TiffSignatureInvalid => write!(fmt, "TIFF signature invalid."),
- ImageFileDirectoryNotFound => write!(fmt, "Image file directory not found."),
- InconsistentSizesEncountered => write!(fmt, "Inconsistent sizes encountered."),
- UnexpectedCompressedData {
- actual_bytes,
- required_bytes,
- } => {
- write!(
- fmt,
- "Decompression returned different amount of bytes than expected: got {}, expected {}.",
- actual_bytes, required_bytes
- )
- }
- InconsistentStripSamples {
- actual_samples,
- required_samples,
- } => {
- write!(
- fmt,
- "Inconsistent elements in strip: got {}, expected {}.",
- actual_samples, required_samples
- )
- }
- InvalidDimensions(width, height) => write!(fmt, "Invalid dimensions: {}x{}.", width, height),
- InvalidTag => write!(fmt, "Image contains invalid tag."),
- InvalidTagValueType(ref tag) => {
- write!(fmt, "Tag `{:?}` did not have the expected value type.", tag)
- }
- RequiredTagNotFound(ref tag) => write!(fmt, "Required tag `{:?}` not found.", tag),
- UnknownPredictor(ref predictor) => {
- write!(fmt, "Unknown predictor “{}” encountered", predictor)
- }
- ByteExpected(ref val) => write!(fmt, "Expected byte, {:?} found.", val),
- UnsignedIntegerExpected(ref val) => {
- write!(fmt, "Expected unsigned integer, {:?} found.", val)
- }
- SignedIntegerExpected(ref val) => {
- write!(fmt, "Expected signed integer, {:?} found.", val)
- }
- Format(ref val) => write!(fmt, "Invalid format: {:?}.", val),
- RequiredTagEmpty(ref val) => write!(fmt, "Required tag {:?} was empty.", val),
- StripTileTagConflict => write!(fmt, "File should contain either (StripByteCounts and StripOffsets) or (TileByteCounts and TileOffsets), other combination was found."),
- CycleInOffsets => write!(fmt, "File contained a cycle in the list of IFDs"),
- JpegDecoder(ref error) => write!(fmt, "{}", error),
- }
- }
-}
-
-/// The Decoder does not support features required by the image.
-///
-/// This only captures known failures for which the standard either does not require support or an
-/// implementation has been planned but not yet completed. Some variants may become unused over
-/// time and will then get deprecated before being removed.
-///
-/// The list of variants may grow. Matching against this exhaustively is not covered by interface
-/// stability guarantees.
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-#[non_exhaustive]
-pub enum TiffUnsupportedError {
- FloatingPointPredictor(ColorType),
- HorizontalPredictor(ColorType),
- InterpretationWithBits(PhotometricInterpretation, Vec<u8>),
- UnknownInterpretation,
- UnknownCompressionMethod,
- UnsupportedCompressionMethod(CompressionMethod),
- UnsupportedSampleDepth(u8),
- UnsupportedSampleFormat(Vec<SampleFormat>),
- UnsupportedColorType(ColorType),
- UnsupportedBitsPerChannel(u8),
- UnsupportedPlanarConfig(Option<PlanarConfiguration>),
- UnsupportedDataType,
- UnsupportedInterpretation(PhotometricInterpretation),
- UnsupportedJpegFeature(UnsupportedFeature),
-}
-
-impl fmt::Display for TiffUnsupportedError {
- fn fmt(&self, fmt: &mut fmt::Formatter) -> Result<(), fmt::Error> {
- use self::TiffUnsupportedError::*;
- match *self {
- FloatingPointPredictor(color_type) => write!(
- fmt,
- "Floating point predictor for {:?} is unsupported.",
- color_type
- ),
- HorizontalPredictor(color_type) => write!(
- fmt,
- "Horizontal predictor for {:?} is unsupported.",
- color_type
- ),
- InterpretationWithBits(ref photometric_interpretation, ref bits_per_sample) => write!(
- fmt,
- "{:?} with {:?} bits per sample is unsupported",
- photometric_interpretation, bits_per_sample
- ),
- UnknownInterpretation => write!(
- fmt,
- "The image is using an unknown photometric interpretation."
- ),
- UnknownCompressionMethod => write!(fmt, "Unknown compression method."),
- UnsupportedCompressionMethod(method) => {
- write!(fmt, "Compression method {:?} is unsupported", method)
- }
- UnsupportedSampleDepth(samples) => {
- write!(fmt, "{} samples per pixel is unsupported.", samples)
- }
- UnsupportedSampleFormat(ref formats) => {
- write!(fmt, "Sample format {:?} is unsupported.", formats)
- }
- UnsupportedColorType(color_type) => {
- write!(fmt, "Color type {:?} is unsupported", color_type)
- }
- UnsupportedBitsPerChannel(bits) => {
- write!(fmt, "{} bits per channel not supported", bits)
- }
- UnsupportedPlanarConfig(config) => {
- write!(fmt, "Unsupported planar configuration “{:?}”.", config)
- }
- UnsupportedDataType => write!(fmt, "Unsupported data type."),
- UnsupportedInterpretation(interpretation) => {
- write!(
- fmt,
- "Unsupported photometric interpretation \"{:?}\".",
- interpretation
- )
- }
- UnsupportedJpegFeature(ref unsupported_feature) => {
- write!(fmt, "Unsupported JPEG feature {:?}", unsupported_feature)
- }
- }
- }
-}
-
-/// User attempted to use the Decoder in a way that is incompatible with a specific image.
-///
-/// For example: attempting to read a tile from a stripped image.
-#[derive(Debug)]
-pub enum UsageError {
- InvalidChunkType(ChunkType, ChunkType),
- InvalidChunkIndex(u32),
-}
-
-impl fmt::Display for UsageError {
- fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
- use self::UsageError::*;
- match *self {
- InvalidChunkType(expected, actual) => {
- write!(
- fmt,
- "Requested operation is only valid for images with chunk encoding of type: {:?}, got {:?}.",
- expected, actual
- )
- }
- InvalidChunkIndex(index) => write!(fmt, "Image chunk index ({}) requested.", index),
- }
- }
-}
-
-impl fmt::Display for TiffError {
- fn fmt(&self, fmt: &mut fmt::Formatter) -> Result<(), fmt::Error> {
- match *self {
- TiffError::FormatError(ref e) => write!(fmt, "Format error: {}", e),
- TiffError::UnsupportedError(ref f) => write!(
- fmt,
- "The Decoder does not support the \
- image format `{}`",
- f
- ),
- TiffError::IoError(ref e) => e.fmt(fmt),
- TiffError::LimitsExceeded => write!(fmt, "The Decoder limits are exceeded"),
- TiffError::IntSizeError => write!(fmt, "Platform or format size limits exceeded"),
- TiffError::UsageError(ref e) => write!(fmt, "Usage error: {}", e),
- }
- }
-}
-
-impl Error for TiffError {
- fn description(&self) -> &str {
- match *self {
- TiffError::FormatError(..) => "Format error",
- TiffError::UnsupportedError(..) => "Unsupported error",
- TiffError::IoError(..) => "IO error",
- TiffError::LimitsExceeded => "Decoder limits exceeded",
- TiffError::IntSizeError => "Platform or format size limits exceeded",
- TiffError::UsageError(..) => "Invalid usage",
- }
- }
-
- fn cause(&self) -> Option<&dyn Error> {
- match *self {
- TiffError::IoError(ref e) => Some(e),
- _ => None,
- }
- }
-}
-
-impl From<io::Error> for TiffError {
- fn from(err: io::Error) -> TiffError {
- TiffError::IoError(err)
- }
-}
-
-impl From<str::Utf8Error> for TiffError {
- fn from(_err: str::Utf8Error) -> TiffError {
- TiffError::FormatError(TiffFormatError::InvalidTag)
- }
-}
-
-impl From<string::FromUtf8Error> for TiffError {
- fn from(_err: string::FromUtf8Error) -> TiffError {
- TiffError::FormatError(TiffFormatError::InvalidTag)
- }
-}
-
-impl From<TiffFormatError> for TiffError {
- fn from(err: TiffFormatError) -> TiffError {
- TiffError::FormatError(err)
- }
-}
-
-impl From<TiffUnsupportedError> for TiffError {
- fn from(err: TiffUnsupportedError) -> TiffError {
- TiffError::UnsupportedError(err)
- }
-}
-
-impl From<UsageError> for TiffError {
- fn from(err: UsageError) -> TiffError {
- TiffError::UsageError(err)
- }
-}
-
-impl From<std::num::TryFromIntError> for TiffError {
- fn from(_err: std::num::TryFromIntError) -> TiffError {
- TiffError::IntSizeError
- }
-}
-
-impl From<LzwError> for TiffError {
- fn from(err: LzwError) -> TiffError {
- match err {
- LzwError::InvalidCode => TiffError::FormatError(TiffFormatError::Format(String::from(
- "LZW compressed data corrupted",
- ))),
- }
- }
-}
-
-#[derive(Debug, Clone)]
-pub struct JpegDecoderError {
- inner: Arc<jpeg::Error>,
-}
-
-impl JpegDecoderError {
- fn new(error: jpeg::Error) -> Self {
- Self {
- inner: Arc::new(error),
- }
- }
-}
-
-impl PartialEq for JpegDecoderError {
- fn eq(&self, other: &Self) -> bool {
- Arc::ptr_eq(&self.inner, &other.inner)
- }
-}
-
-impl Display for JpegDecoderError {
- fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
- self.inner.fmt(f)
- }
-}
-
-impl From<JpegDecoderError> for TiffError {
- fn from(error: JpegDecoderError) -> Self {
- TiffError::FormatError(TiffFormatError::JpegDecoder(error))
- }
-}
-
-impl From<jpeg::Error> for TiffError {
- fn from(error: jpeg::Error) -> Self {
- JpegDecoderError::new(error).into()
- }
-}
-
-/// Result of an image decoding/encoding process
-pub type TiffResult<T> = Result<T, TiffError>;
diff --git a/vendor/tiff/src/lib.rs b/vendor/tiff/src/lib.rs
deleted file mode 100644
index 8f23f35..0000000
--- a/vendor/tiff/src/lib.rs
+++ /dev/null
@@ -1,43 +0,0 @@
-//! Decoding and Encoding of TIFF Images
-//!
-//! TIFF (Tagged Image File Format) is a versatile image format that supports
-//! lossless and lossy compression.
-//!
-//! # Related Links
-//! * <https://web.archive.org/web/20210108073850/https://www.adobe.io/open/standards/TIFF.html> - The TIFF specification
-
-extern crate jpeg;
-extern crate weezl;
-
-mod bytecast;
-pub mod decoder;
-pub mod encoder;
-mod error;
-pub mod tags;
-
-pub use self::error::{TiffError, TiffFormatError, TiffResult, TiffUnsupportedError, UsageError};
-
-/// An enumeration over supported color types and their bit depths
-#[derive(Copy, PartialEq, Eq, Debug, Clone, Hash)]
-pub enum ColorType {
- /// Pixel is grayscale
- Gray(u8),
-
- /// Pixel contains R, G and B channels
- RGB(u8),
-
- /// Pixel is an index into a color palette
- Palette(u8),
-
- /// Pixel is grayscale with an alpha channel
- GrayA(u8),
-
- /// Pixel is RGB with an alpha channel
- RGBA(u8),
-
- /// Pixel is CMYK
- CMYK(u8),
-
- /// Pixel is YCbCr
- YCbCr(u8),
-}
diff --git a/vendor/tiff/src/tags.rs b/vendor/tiff/src/tags.rs
deleted file mode 100644
index cbf7472..0000000
--- a/vendor/tiff/src/tags.rs
+++ /dev/null
@@ -1,234 +0,0 @@
-macro_rules! tags {
- {
- // Permit arbitrary meta items, which include documentation.
- $( #[$enum_attr:meta] )*
- $vis:vis enum $name:ident($ty:tt) $(unknown($unknown_doc:literal))* {
- // Each of the `Name = Val,` permitting documentation.
- $($(#[$ident_attr:meta])* $tag:ident = $val:expr,)*
- }
- } => {
- $( #[$enum_attr] )*
- #[derive(Clone, Copy, PartialEq, Eq, Debug, Hash)]
- #[non_exhaustive]
- pub enum $name {
- $($(#[$ident_attr])* $tag,)*
- $(
- #[doc = $unknown_doc]
- Unknown($ty),
- )*
- }
-
- impl $name {
- #[inline(always)]
- fn __from_inner_type(n: $ty) -> Result<Self, $ty> {
- match n {
- $( $val => Ok($name::$tag), )*
- n => Err(n),
- }
- }
-
- #[inline(always)]
- fn __to_inner_type(&self) -> $ty {
- match *self {
- $( $name::$tag => $val, )*
- $( $name::Unknown(n) => { $unknown_doc; n }, )*
- }
- }
- }
-
- tags!($name, $ty, $($unknown_doc)*);
- };
- // For u16 tags, provide direct inherent primitive conversion methods.
- ($name:tt, u16, $($unknown_doc:literal)*) => {
- impl $name {
- #[inline(always)]
- pub fn from_u16(val: u16) -> Option<Self> {
- Self::__from_inner_type(val).ok()
- }
-
- $(
- #[inline(always)]
- pub fn from_u16_exhaustive(val: u16) -> Self {
- $unknown_doc;
- Self::__from_inner_type(val).unwrap_or_else(|_| $name::Unknown(val))
- }
- )*
-
- #[inline(always)]
- pub fn to_u16(&self) -> u16 {
- Self::__to_inner_type(self)
- }
- }
- };
- // For other tag types, do nothing for now. With concat_idents one could
- // provide inherent conversion methods for all types.
- ($name:tt, $ty:tt, $($unknown_doc:literal)*) => {};
-}
-
-// Note: These tags appear in the order they are mentioned in the TIFF reference
-tags! {
-/// TIFF tags
-pub enum Tag(u16) unknown("A private or extension tag") {
- // Baseline tags:
- Artist = 315,
- // grayscale images PhotometricInterpretation 1 or 3
- BitsPerSample = 258,
- CellLength = 265, // TODO add support
- CellWidth = 264, // TODO add support
- // palette-color images (PhotometricInterpretation 3)
- ColorMap = 320, // TODO add support
- Compression = 259, // TODO add support for 2 and 32773
- Copyright = 33_432,
- DateTime = 306,
- ExtraSamples = 338, // TODO add support
- FillOrder = 266, // TODO add support
- FreeByteCounts = 289, // TODO add support
- FreeOffsets = 288, // TODO add support
- GrayResponseCurve = 291, // TODO add support
- GrayResponseUnit = 290, // TODO add support
- HostComputer = 316,
- ImageDescription = 270,
- ImageLength = 257,
- ImageWidth = 256,
- Make = 271,
- MaxSampleValue = 281, // TODO add support
- MinSampleValue = 280, // TODO add support
- Model = 272,
- NewSubfileType = 254, // TODO add support
- Orientation = 274, // TODO add support
- PhotometricInterpretation = 262,
- PlanarConfiguration = 284,
- ResolutionUnit = 296, // TODO add support
- RowsPerStrip = 278,
- SamplesPerPixel = 277,
- Software = 305,
- StripByteCounts = 279,
- StripOffsets = 273,
- SubfileType = 255, // TODO add support
- Threshholding = 263, // TODO add support
- XResolution = 282,
- YResolution = 283,
- // Advanced tags
- Predictor = 317,
- TileWidth = 322,
- TileLength = 323,
- TileOffsets = 324,
- TileByteCounts = 325,
- // Data Sample Format
- SampleFormat = 339,
- SMinSampleValue = 340, // TODO add support
- SMaxSampleValue = 341, // TODO add support
- // JPEG
- JPEGTables = 347,
- // GeoTIFF
- ModelPixelScaleTag = 33550, // (SoftDesk)
- ModelTransformationTag = 34264, // (JPL Carto Group)
- ModelTiepointTag = 33922, // (Intergraph)
- GeoKeyDirectoryTag = 34735, // (SPOT)
- GeoDoubleParamsTag = 34736, // (SPOT)
- GeoAsciiParamsTag = 34737, // (SPOT)
- GdalNodata = 42113, // Contains areas with missing data
-}
-}
-
-tags! {
-/// The type of an IFD entry (a 2 byte field).
-pub enum Type(u16) {
- /// 8-bit unsigned integer
- BYTE = 1,
- /// 8-bit byte that contains a 7-bit ASCII code; the last byte must be zero
- ASCII = 2,
- /// 16-bit unsigned integer
- SHORT = 3,
- /// 32-bit unsigned integer
- LONG = 4,
- /// Fraction stored as two 32-bit unsigned integers
- RATIONAL = 5,
- /// 8-bit signed integer
- SBYTE = 6,
- /// 8-bit byte that may contain anything, depending on the field
- UNDEFINED = 7,
- /// 16-bit signed integer
- SSHORT = 8,
- /// 32-bit signed integer
- SLONG = 9,
- /// Fraction stored as two 32-bit signed integers
- SRATIONAL = 10,
- /// 32-bit IEEE floating point
- FLOAT = 11,
- /// 64-bit IEEE floating point
- DOUBLE = 12,
- /// 32-bit unsigned integer (offset)
- IFD = 13,
- /// BigTIFF 64-bit unsigned integer
- LONG8 = 16,
- /// BigTIFF 64-bit signed integer
- SLONG8 = 17,
- /// BigTIFF 64-bit unsigned integer (offset)
- IFD8 = 18,
-}
-}
-
-tags! {
-/// See [TIFF compression tags](https://www.awaresystems.be/imaging/tiff/tifftags/compression.html)
-/// for reference.
-pub enum CompressionMethod(u16) {
- None = 1,
- Huffman = 2,
- Fax3 = 3,
- Fax4 = 4,
- LZW = 5,
- JPEG = 6,
- // "Extended JPEG" or "new JPEG" style
- ModernJPEG = 7,
- Deflate = 8,
- OldDeflate = 0x80B2,
- PackBits = 0x8005,
-}
-}
-
-tags! {
-pub enum PhotometricInterpretation(u16) {
- WhiteIsZero = 0,
- BlackIsZero = 1,
- RGB = 2,
- RGBPalette = 3,
- TransparencyMask = 4,
- CMYK = 5,
- YCbCr = 6,
- CIELab = 8,
-}
-}
-
-tags! {
-pub enum PlanarConfiguration(u16) {
- Chunky = 1,
- Planar = 2,
-}
-}
-
-tags! {
-pub enum Predictor(u16) {
- None = 1,
- Horizontal = 2,
- FloatingPoint = 3,
-}
-}
-
-tags! {
-/// Type to represent resolution units
-pub enum ResolutionUnit(u16) {
- None = 1,
- Inch = 2,
- Centimeter = 3,
-}
-}
-
-tags! {
-pub enum SampleFormat(u16) unknown("An unknown extension sample format") {
- Uint = 1,
- Int = 2,
- IEEEFP = 3,
- Void = 4,
-}
-}
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