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feat: Add BigTiff enum values

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Etienne Prothon committed 2020-07-27 10:52:43 +02:00
1 parent dacc2864e8
commit ba3f6e604a
2 files changed
+84 -60
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src/decoder/ifd.rs
+83 -59
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@@ -9,17 +9,21 @@ use super::stream::{ByteOrder, EndianReader, SmartReader};
use tags::{Tag, Type};
use {TiffError, TiffFormatError, TiffResult, TiffUnsupportedError};
use self::Value::{Ascii, List, Rational, Unsigned, Signed, SRational};
use self::Value::{Ascii, List, Rational, Unsigned, Signed, SRational, RationalBig, UnsignedBig, SignedBig, SRationalBig};
#[allow(unused_qualifications)]
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub enum Value {
Signed(i64),
Unsigned(u64),
Signed(i32),
SignedBig(i64),
Unsigned(u32),
UnsignedBig(u64),
List(Vec<Value>),
Rational(u64, u64),
SRational(i64, i64),
Rational(u32, u32),
RationalBig(u64, u64),
SRational(i32, i32),
SRationalBig(i64, i64),
Ascii(String),
#[doc(hidden)] // Do not match against this.
__NonExhaustive,
@@ -28,7 +32,8 @@ pub enum Value {
impl Value {
pub fn into_u32(self) -> TiffResult<u32> {
match self {
Unsigned(val) => Ok(u32::try_from(val)?),
Unsigned(val) => Ok(val),
UnsignedBig(val) => Ok(u32::try_from(val)?),
val => Err(TiffError::FormatError(
TiffFormatError::UnsignedIntegerExpected(val),
)),
@@ -37,7 +42,8 @@ impl Value {
pub fn into_i32(self) -> TiffResult<i32> {
match self {
Signed(val) => Ok(i32::try_from(val)?),
Signed(val) => Ok(val),
SignedBig(val) => Ok(i32::try_from(val)?),
val => Err(TiffError::FormatError(
TiffFormatError::SignedIntegerExpected(val),
)),
@@ -46,7 +52,8 @@ impl Value {
pub fn into_u64(self) -> TiffResult<u64> {
match self {
Unsigned(val) => Ok(val),
Unsigned(val) => Ok(val.into()),
UnsignedBig(val) => Ok(val),
val => Err(TiffError::FormatError(
TiffFormatError::UnsignedIntegerExpected(val),
)),
@@ -55,7 +62,8 @@ impl Value {
pub fn into_i64(self) -> TiffResult<i64> {
match self {
Signed(val) => Ok(val),
Signed(val) => Ok(val.into()),
SignedBig(val) => Ok(val),
val => Err(TiffError::FormatError(
TiffFormatError::SignedIntegerExpected(val),
)),
@@ -71,8 +79,10 @@ impl Value {
}
Ok(new_vec)
}
Unsigned(val) => Ok(vec![u32::try_from(val)?]),
Rational(numerator, denominator) => Ok(vec![u32::try_from(numerator)?, u32::try_from(denominator)?]),
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)?]),
Ascii(val) => Ok(val.chars().map(u32::from).collect()),
val => Err(TiffError::FormatError(
TiffFormatError::UnsignedIntegerExpected(val),
@@ -87,6 +97,10 @@ impl Value {
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)?);
}
@@ -95,8 +109,10 @@ impl Value {
}
Ok(new_vec)
}
Signed(val) => Ok(vec![i32::try_from(val)?]),
SRational(numerator, denominator) => Ok(vec![i32::try_from(numerator)?, i32::try_from(denominator)?]),
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),
)),
@@ -112,8 +128,10 @@ impl Value {
}
Ok(new_vec)
}
Unsigned(val) => Ok(vec![val]),
Rational(numerator, denominator) => Ok(vec![numerator, denominator]),
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]),
Ascii(val) => Ok(val.chars().map(u32::from).map(u64::from).collect()),
val => Err(TiffError::FormatError(
TiffFormatError::UnsignedIntegerExpected(val),
@@ -128,6 +146,10 @@ impl Value {
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);
}
@@ -136,8 +158,10 @@ impl Value {
}
Ok(new_vec)
}
Signed(val) => Ok(vec![val]),
SRational(numerator, denominator) => Ok(vec![numerator, denominator]),
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),
)),
@@ -200,61 +224,61 @@ impl Entry {
(Type::SHORT, 3) => {
let mut r = self.r(bo);
Some(List(vec![
Unsigned(u64::from(r.read_u16()?)),
Unsigned(u64::from(r.read_u16()?)),
Unsigned(u64::from(r.read_u16()?)),
Unsigned(u32::from(r.read_u16()?)),
Unsigned(u32::from(r.read_u16()?)),
Unsigned(u32::from(r.read_u16()?)),
]))
}
(Type::SSHORT, 3) => {
let mut r = self.r(bo);
Some(List(vec![
Signed(i64::from(r.read_i16()?)),
Signed(i64::from(r.read_i16()?)),
Signed(i64::from(r.read_i16()?)),
Signed(i32::from(r.read_i16()?)),
Signed(i32::from(r.read_i16()?)),
Signed(i32::from(r.read_i16()?)),
]))
}
(Type::SHORT, 4) => {
let mut r = self.r(bo);
Some(List(vec![
Unsigned(u64::from(r.read_u16()?)),
Unsigned(u64::from(r.read_u16()?)),
Unsigned(u64::from(r.read_u16()?)),
Unsigned(u64::from(r.read_u16()?)),
Unsigned(u32::from(r.read_u16()?)),
Unsigned(u32::from(r.read_u16()?)),
Unsigned(u32::from(r.read_u16()?)),
Unsigned(u32::from(r.read_u16()?)),
]))
}
(Type::SSHORT, 4) => {
let mut r = self.r(bo);
Some(List(vec![
Signed(i64::from(r.read_i16()?)),
Signed(i64::from(r.read_i16()?)),
Signed(i64::from(r.read_i16()?)),
Signed(i64::from(r.read_i16()?)),
Signed(i32::from(r.read_i16()?)),
Signed(i32::from(r.read_i16()?)),
Signed(i32::from(r.read_i16()?)),
Signed(i32::from(r.read_i16()?)),
]))
}
(Type::LONG, 2) => {
let mut r = self.r(bo);
Some(List(vec![
Unsigned(r.read_u32()?.into()),
Unsigned(r.read_u32()?.into()),
Unsigned(r.read_u32()?),
Unsigned(r.read_u32()?),
]))
}
(Type::SLONG, 2) => {
let mut r = self.r(bo);
Some(List(vec![
Signed(r.read_i32()?.into()),
Signed(r.read_i32()?.into()),
Signed(r.read_i32()?),
Signed(r.read_i32()?),
]))
}
(Type::RATIONAL, 1) => {
let mut r = self.r(bo);
let numerator = r.read_u32()?.into();
let denominator = r.read_u32()?.into();
let numerator = r.read_u32()?;
let denominator = r.read_u32()?;
Some(Rational(numerator, denominator))
}
(Type::SRATIONAL, 1) => {
let mut r = self.r(bo);
let numerator = r.read_i32()?.into();
let denominator = r.read_i32()?.into();
let numerator = r.read_i32()?;
let denominator = r.read_i32()?;
Some(SRational(numerator, denominator))
}
_ => None
@@ -269,55 +293,55 @@ impl Entry {
match (self.type_, self.count) {
// TODO check if this could give wrong results
// at a different endianess of file/computer.
(Type::BYTE, 1) => Ok(Unsigned(u64::from(self.offset[0]))),
(Type::BYTE, 1) => Ok(Unsigned(u32::from(self.offset[0]))),
(Type::BYTE, 2) => offset_to_bytes(2, self),
(Type::BYTE, 3) => offset_to_bytes(3, self),
(Type::BYTE, 4) => offset_to_bytes(4, self),
(Type::BYTE, n) => self.decode_offset(n, bo, limits, decoder, |decoder| {
Ok(Unsigned(u64::from(decoder.read_byte()?)))
Ok(UnsignedBig(u64::from(decoder.read_byte()?)))
}),
(Type::SBYTE, 1) => Ok(Signed(i64::from(self.offset[0] as i8))),
(Type::SBYTE, 1) => Ok(Signed(i32::from(self.offset[0] as i8))),
(Type::SBYTE, 2) => offset_to_sbytes(2, self),
(Type::SBYTE, 3) => offset_to_sbytes(3, self),
(Type::SBYTE, 4) => offset_to_sbytes(4, self),
(Type::SBYTE, n) => self.decode_offset(n, bo, limits, decoder, |decoder| {
Ok(Signed(i64::from(decoder.read_byte()? as i8)))
Ok(SignedBig(i64::from(decoder.read_byte()? as i8)))
}),
(Type::SHORT, 1) => Ok(Unsigned(u64::from(self.r(bo).read_u16()?))),
(Type::SSHORT, 1) => Ok(Signed(i64::from(self.r(bo).read_i16()?))),
(Type::SHORT, 1) => Ok(Unsigned(u32::from(self.r(bo).read_u16()?))),
(Type::SSHORT, 1) => Ok(Signed(i32::from(self.r(bo).read_i16()?))),
(Type::SHORT, 2) => {
let mut r = self.r(bo);
Ok(List(vec![
Unsigned(u64::from(r.read_u16()?)),
Unsigned(u64::from(r.read_u16()?)),
Unsigned(u32::from(r.read_u16()?)),
Unsigned(u32::from(r.read_u16()?)),
]))
}
(Type::SSHORT, 2) => {
let mut r = self.r(bo);
Ok(List(vec![
Signed(i64::from(r.read_i16()?)),
Signed(i64::from(r.read_i16()?)),
Signed(i32::from(r.read_i16()?)),
Signed(i32::from(r.read_i16()?)),
]))
}
(Type::SHORT, n) => self.decode_offset(n, bo, limits, decoder, |decoder| {
Ok(Unsigned(u64::from(decoder.read_short()?)))
Ok(UnsignedBig(u64::from(decoder.read_short()?)))
}),
(Type::SSHORT, n) => self.decode_offset(n, bo, limits, decoder, |decoder| {
Ok(Signed(i64::from(decoder.read_sshort()?)))
Ok(SignedBig(i64::from(decoder.read_sshort()?)))
}),
(Type::LONG, 1) => Ok(Unsigned(self.r(bo).read_u32()?.into())),
(Type::SLONG, 1) => Ok(Signed(self.r(bo).read_i32()?.into())),
(Type::LONG, 1) => Ok(Unsigned(self.r(bo).read_u32()?)),
(Type::SLONG, 1) => Ok(Signed(self.r(bo).read_i32()?)),
(Type::LONG, n) => self.decode_offset(n, bo, limits, decoder, |decoder| {
Ok(Unsigned(decoder.read_long()?.into()))
Ok(Unsigned(decoder.read_long()?))
}),
(Type::SLONG, n) => self.decode_offset(n, bo, limits, decoder, |decoder| {
Ok(Signed(decoder.read_slong()?.into()))
Ok(Signed(decoder.read_slong()?))
}),
(Type::RATIONAL, n) => self.decode_offset(n, bo, limits, decoder, |decoder| {
Ok(Rational(decoder.read_long()?.into(), decoder.read_long()?.into()))
Ok(Rational(decoder.read_long()?, decoder.read_long()?))
}),
(Type::SRATIONAL, n) => self.decode_offset(n, bo, limits, decoder, |decoder| {
Ok(SRational(decoder.read_slong()?.into(), decoder.read_slong()?.into()))
Ok(SRational(decoder.read_slong()?, decoder.read_slong()?))
}),
(Type::ASCII, n) => {
let n = usize::try_from(n)?;
@@ -369,7 +393,7 @@ fn offset_to_bytes(n: usize, entry: &Entry) -> TiffResult<Value> {
Ok(List(
entry.offset[0..n]
.iter()
.map(|&e| Unsigned(u64::from(e)))
.map(|&e| Unsigned(u32::from(e)))
.collect()
))
}
@@ -380,7 +404,7 @@ fn offset_to_sbytes(n: usize, entry: &Entry) -> TiffResult<Value> {
Ok(List(
entry.offset[0..n]
.iter()
.map(|&e| Signed(i64::from(e as i8)))
.map(|&e| Signed(i32::from(e as i8)))
.collect()
))
}