Struct fax::encoder::Encoder

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pub struct Encoder<W> { /* private fields */ }

Implementations§

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impl<W: BitWriter> Encoder<W>

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pub fn new(writer: W) -> Self

Examples found in repository?
examples/pbm2fax.rs (line 17)
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fn main() {
    let mut args = std::env::args().skip(1);
    let input: String = args.next().unwrap();
    let output = args.next().unwrap();

    let data = fs::read(&input).unwrap();
    let mut parts = data.splitn(3, |&b| b == b'\n');
    assert_eq!(parts.next().unwrap(), b"P4");
    let mut size = parts.next().unwrap().splitn(2, |&b| b == b' ');
    let width: u32 = std::str::from_utf8(size.next().unwrap()).unwrap().parse().unwrap();
    let height: u32 = std::str::from_utf8(size.next().unwrap()).unwrap().parse().unwrap();

    let writer = VecWriter::new();
    let mut encoder = Encoder::new(writer);
    
    for line in parts.next().unwrap().chunks((width as usize + 7) / 8).take(height as _) {
        let line = slice_bits(line).take(width as usize)
        .map(|b| match b {
            false => Color::White,
            true => Color::Black
        });
        encoder.encode_line(line, width as u16).unwrap();
    }
    let data = encoder.finish().unwrap().finish();

    fs::write(&output, &tiff::wrap(&data, width, height)).unwrap();
}
More examples
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examples/validate.rs (line 19)
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fn main() {
    let mut args = std::env::args().skip(1);
    let input: String = args.next().unwrap();
    let output = args.next().unwrap();

    let data = fs::read(&input).unwrap();
    let reference_data = fs::read(&output).unwrap();
    let mut parts = data.splitn(3, |&b| b == b'\n');
    assert_eq!(parts.next().unwrap(), b"P4");
    let mut size = parts.next().unwrap().splitn(2, |&b| b == b' ');
    let width: u16 = std::str::from_utf8(size.next().unwrap()).unwrap().parse().unwrap();
    let height: u16 = std::str::from_utf8(size.next().unwrap()).unwrap().parse().unwrap();

    //let writer = VecWriter::new();
    let writer = Validator { reader: slice_reader(&reference_data) };
    let mut encoder = Encoder::new(writer);
    
    for (y, line) in parts.next().unwrap().chunks((width as usize + 7) / 8).enumerate().take(height as _) {
        println!("\nline {}", y);
        let line = slice_bits(line).take(width as usize)
        .map(|b| match b {
            false => Color::Black,
            true => Color::White
        });
        encoder.encode_line(line, width).unwrap();
    }
    let mut writer = encoder.finish().unwrap();
    writer.reader.print_remaining();
    

    //let (data, _) = encoder.into_writer().finish();
    //fs::write(&output, &data).unwrap();
}
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pub fn encode_line( &mut self, pels: impl Iterator<Item = Color>, width: u16 ) -> Result<(), W::Error>

Examples found in repository?
examples/pbm2fax.rs (line 25)
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fn main() {
    let mut args = std::env::args().skip(1);
    let input: String = args.next().unwrap();
    let output = args.next().unwrap();

    let data = fs::read(&input).unwrap();
    let mut parts = data.splitn(3, |&b| b == b'\n');
    assert_eq!(parts.next().unwrap(), b"P4");
    let mut size = parts.next().unwrap().splitn(2, |&b| b == b' ');
    let width: u32 = std::str::from_utf8(size.next().unwrap()).unwrap().parse().unwrap();
    let height: u32 = std::str::from_utf8(size.next().unwrap()).unwrap().parse().unwrap();

    let writer = VecWriter::new();
    let mut encoder = Encoder::new(writer);
    
    for line in parts.next().unwrap().chunks((width as usize + 7) / 8).take(height as _) {
        let line = slice_bits(line).take(width as usize)
        .map(|b| match b {
            false => Color::White,
            true => Color::Black
        });
        encoder.encode_line(line, width as u16).unwrap();
    }
    let data = encoder.finish().unwrap().finish();

    fs::write(&output, &tiff::wrap(&data, width, height)).unwrap();
}
More examples
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examples/validate.rs (line 28)
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fn main() {
    let mut args = std::env::args().skip(1);
    let input: String = args.next().unwrap();
    let output = args.next().unwrap();

    let data = fs::read(&input).unwrap();
    let reference_data = fs::read(&output).unwrap();
    let mut parts = data.splitn(3, |&b| b == b'\n');
    assert_eq!(parts.next().unwrap(), b"P4");
    let mut size = parts.next().unwrap().splitn(2, |&b| b == b' ');
    let width: u16 = std::str::from_utf8(size.next().unwrap()).unwrap().parse().unwrap();
    let height: u16 = std::str::from_utf8(size.next().unwrap()).unwrap().parse().unwrap();

    //let writer = VecWriter::new();
    let writer = Validator { reader: slice_reader(&reference_data) };
    let mut encoder = Encoder::new(writer);
    
    for (y, line) in parts.next().unwrap().chunks((width as usize + 7) / 8).enumerate().take(height as _) {
        println!("\nline {}", y);
        let line = slice_bits(line).take(width as usize)
        .map(|b| match b {
            false => Color::Black,
            true => Color::White
        });
        encoder.encode_line(line, width).unwrap();
    }
    let mut writer = encoder.finish().unwrap();
    writer.reader.print_remaining();
    

    //let (data, _) = encoder.into_writer().finish();
    //fs::write(&output, &data).unwrap();
}
source

pub fn finish(self) -> Result<W, W::Error>

Examples found in repository?
examples/pbm2fax.rs (line 27)
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fn main() {
    let mut args = std::env::args().skip(1);
    let input: String = args.next().unwrap();
    let output = args.next().unwrap();

    let data = fs::read(&input).unwrap();
    let mut parts = data.splitn(3, |&b| b == b'\n');
    assert_eq!(parts.next().unwrap(), b"P4");
    let mut size = parts.next().unwrap().splitn(2, |&b| b == b' ');
    let width: u32 = std::str::from_utf8(size.next().unwrap()).unwrap().parse().unwrap();
    let height: u32 = std::str::from_utf8(size.next().unwrap()).unwrap().parse().unwrap();

    let writer = VecWriter::new();
    let mut encoder = Encoder::new(writer);
    
    for line in parts.next().unwrap().chunks((width as usize + 7) / 8).take(height as _) {
        let line = slice_bits(line).take(width as usize)
        .map(|b| match b {
            false => Color::White,
            true => Color::Black
        });
        encoder.encode_line(line, width as u16).unwrap();
    }
    let data = encoder.finish().unwrap().finish();

    fs::write(&output, &tiff::wrap(&data, width, height)).unwrap();
}
More examples
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examples/validate.rs (line 30)
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fn main() {
    let mut args = std::env::args().skip(1);
    let input: String = args.next().unwrap();
    let output = args.next().unwrap();

    let data = fs::read(&input).unwrap();
    let reference_data = fs::read(&output).unwrap();
    let mut parts = data.splitn(3, |&b| b == b'\n');
    assert_eq!(parts.next().unwrap(), b"P4");
    let mut size = parts.next().unwrap().splitn(2, |&b| b == b' ');
    let width: u16 = std::str::from_utf8(size.next().unwrap()).unwrap().parse().unwrap();
    let height: u16 = std::str::from_utf8(size.next().unwrap()).unwrap().parse().unwrap();

    //let writer = VecWriter::new();
    let writer = Validator { reader: slice_reader(&reference_data) };
    let mut encoder = Encoder::new(writer);
    
    for (y, line) in parts.next().unwrap().chunks((width as usize + 7) / 8).enumerate().take(height as _) {
        println!("\nline {}", y);
        let line = slice_bits(line).take(width as usize)
        .map(|b| match b {
            false => Color::Black,
            true => Color::White
        });
        encoder.encode_line(line, width).unwrap();
    }
    let mut writer = encoder.finish().unwrap();
    writer.reader.print_remaining();
    

    //let (data, _) = encoder.into_writer().finish();
    //fs::write(&output, &data).unwrap();
}

Auto Trait Implementations§

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impl<W> Freeze for Encoder<W>
where W: Freeze,

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impl<W> RefUnwindSafe for Encoder<W>
where W: RefUnwindSafe,

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impl<W> Send for Encoder<W>
where W: Send,

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impl<W> Sync for Encoder<W>
where W: Sync,

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impl<W> Unpin for Encoder<W>
where W: Unpin,

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impl<W> UnwindSafe for Encoder<W>
where W: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.