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Improve performance by better pre-allocating pixmap buffer

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itsjunetime
2025-02-21 20:56:25 -07:00
parent 70f3401702
commit aae1f9d37b
3 changed files with 34 additions and 34 deletions
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src/renderer.rs
+3 -3
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@@ -276,9 +276,9 @@ pub fn start_rendering(
rendered.contained_term = Some(ctx.result_rects.is_empty());
rendered.successful = true;
let cap = (ctx.pixmap.width()
* ctx.pixmap.height() * u32::from(ctx.pixmap.n()))
as usize;
let w = ctx.pixmap.width();
let h = ctx.pixmap.height();
let cap = (w * h * u32::from(ctx.pixmap.n())) as usize + 16;
let mut pixels = Vec::with_capacity(cap);
if let Err(e) = ctx.pixmap.write_to(&mut pixels, mupdf::ImageFormat::PNM) {
sender.send(Err(RenderError::Doc(e)))?;