38 lines
1.2 KiB
Rust
38 lines
1.2 KiB
Rust
use std::{fs::File, io::{Error, Write, BufWriter, ErrorKind}};
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use image::ImageOutputFormat;
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pub trait Output {
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fn write(filename: &str, pixels: &Vec<u8>, width: usize, height: usize) -> Result<(), Error>;
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}
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pub struct P3 {}
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impl Output for P3 {
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fn write(filename: &str, pixels: &Vec<u8>, width: usize, height: usize) -> Result<(), Error> {
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let mut file = File::create(filename)?;
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file.write(format!("P3\n{} {}\n255\n", width, height).as_bytes())?;
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let lines: Result<Vec<usize>, Error> = pixels
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.chunks(3)
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.map(|chunk| format!("{} {} {}\n", chunk[0], chunk[1], chunk[2]))
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.map(|line| file.write(line.as_bytes()))
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.collect();
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lines.map(|_l|())
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}
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}
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pub struct PNG {}
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impl Output for PNG {
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fn write(filename: &str, pixels: &Vec<u8>, width: usize, height: usize) -> Result<(), Error> {
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let file = File::create(filename)?;
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let ref mut writer = BufWriter::new(file);
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image::write_buffer_with_format(
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writer,
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pixels,
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width as u32,
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height as u32,
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image::ColorType::Rgb8,
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ImageOutputFormat::Png)
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.map_err(|e| Error::new(ErrorKind::Other, e))
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}
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}
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