Struct png::Writer

pub struct Writer<W: Write> { /* fields omitted */ }

PNG writer

Implementations

impl<W: Write> Writer<W>

pub fn write_chunk(
    &mut self,
    name: [u8; 4],
    data: &[u8]
) -> Result<(), EncodingError>

pub fn write_image_data(&mut self, data: &[u8]) -> Result<(), EncodingError>

Writes the image data.

pub fn stream_writer(&mut self) -> StreamWriter<W>ⓘ

Important traits for StreamWriter<'a, W>

impl<'a, W: Write> Write for StreamWriter<'a, W>

Create an stream writer.

This allows you create images that do not fit in memory. The default chunk size is 4K, use stream_writer_with_size to set another chuck size.

This borrows the writer. This preserves it which allows manually appending additional chunks after the image data has been written

pub fn stream_writer_with_size(&mut self, size: usize) -> StreamWriter<W>ⓘ

Important traits for StreamWriter<'a, W>

impl<'a, W: Write> Write for StreamWriter<'a, W>

Create a stream writer with custom buffer size.

See stream_writer.

pub fn into_stream_writer(self) -> StreamWriter<'static, W>ⓘ

Important traits for StreamWriter<'a, W>

impl<'a, W: Write> Write for StreamWriter<'a, W>

Turn this into a stream writer for image data.

This allows you create images that do not fit in memory. The default chunk size is 4K, use stream_writer_with_size to set another chuck size.

pub fn into_stream_writer_with_size(
    self,
    size: usize
) -> StreamWriter<'static, W>ⓘ

Important traits for StreamWriter<'a, W>

impl<'a, W: Write> Write for StreamWriter<'a, W>

Turn this into a stream writer with custom buffer size.

See into_stream_writer.

Trait Implementations

impl<W: Write> Drop for Writer<W>

fn drop(&mut self)

Executes the destructor for this type.