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encode_png

git_koi::output

Function encode_png 

Source 
pub fn encode_png(koi_frame: &KoiFrame) -> Result<Vec<u8>, EncodingError>
Expand description

Encode a static PNG by repeating each native pixel in both dimensions. Preserve its color and alpha without interpolation, timestamps, I/O, or mutation. Encoding errors propagate before the caller publishes any resulting bytes.

Examples found in repository?
examples/generate-library.rs (line 318)
308fn render_sample(
309    output_directory: &Path,
310    koi_development: &KoiDevelopment,
311    koi_body: KoiBody,
312    file_stem: &str,
313    heading: &str,
314    index_markdown: &mut String,
315) -> Result<KoiFrame, Box<dyn Error>> {
316    let koi_frame = render_koi(koi_development, koi_body);
317    let file_name = format!("{file_stem}.png");
318    write_artifact(output_directory, &file_name, &encode_png(&koi_frame)?)?;
319    let svg_name = format!("{file_stem}.svg");
320    write_artifact(
321        output_directory,
322        &svg_name,
323        encode_svg(&koi_frame).as_bytes(),
324    )?;
325    index_markdown.push_str(&format!(
326        "### {heading}\n\n![{file_stem}]({file_name})\n\n[SVG]({svg_name})\n\n"
327    ));
328    Ok(koi_frame)
329}