diff options
Diffstat (limited to 'vendor/tiff/src/encoder/tiff_value.rs')
| -rw-r--r-- | vendor/tiff/src/encoder/tiff_value.rs | 523 |
1 files changed, 0 insertions, 523 deletions
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, -} |