Add initial support for doing benchmarking and some starting info on how to build the benchmark stuff with poppler debug info

benches/utils.rs

@@ -0,0 +1,94 @@
+use std::{hint::black_box, path::Path};
+
+use crossterm::terminal::WindowSize;
+use ratatui::layout::Rect;
+use ratatui_image::picker::{Picker, ProtocolType};
+use tdf::{converter::{run_conversion_loop, ConvertedPage, ConverterMsg}, renderer::{fill_default, start_rendering, RenderError, RenderInfo, RenderNotif}};
+use tokio::sync::mpsc::{unbounded_channel, UnboundedSender};
+
+pub async fn render_doc(path: impl AsRef<Path>) {
+	let pathbuf = path.as_ref().canonicalize().unwrap();
+	let str_path = format!("file://{}", pathbuf.into_os_string().to_string_lossy());
+
+	let (to_render_tx, from_main_rx) = unbounded_channel();
+	let (to_main_tx, mut from_render_rx) = unbounded_channel();
+
+	let font_size = (8, 14);
+	let (columns, rows) = (60, 180);
+
+	let size = WindowSize {
+		columns,
+		rows,
+		height: rows * font_size.1,
+		width: columns * font_size.0
+	};
+
+	std::thread::spawn(move || {
+		start_rendering(str_path, to_main_tx, from_main_rx, size)
+	});
+
+	let (mut to_converter_tx, from_main_rx) = unbounded_channel();
+	let (to_main_tx, mut from_converter_rx) = unbounded_channel();
+
+	let mut picker = Picker::new(font_size);
+	picker.protocol_type = ProtocolType::Kitty;
+
+	tokio::spawn(run_conversion_loop(to_main_tx, from_main_rx, picker));
+
+	let mut pages: Vec<Option<ConvertedPage>> = Vec::new();
+
+	fn handle_renderer_msg(
+		msg: Result<RenderInfo, RenderError>,
+		pages: &mut Vec<Option<ConvertedPage>>,
+		to_converter_tx: &mut UnboundedSender<tdf::converter::ConverterMsg>,
+	) {
+		match msg {
+			Ok(RenderInfo::NumPages(num)) => {
+				fill_default(pages, num);
+				to_converter_tx.send(ConverterMsg::NumPages(num)).unwrap();
+			},
+			Ok(RenderInfo::Page(info)) => to_converter_tx.send(ConverterMsg::AddImg(info)).unwrap(),
+			Err(e) => panic!("Got error from renderer: {e:?}")
+		}
+	}
+
+	fn handle_converter_msg(
+		msg: Result<ConvertedPage, RenderError>,
+		pages: &mut [Option<ConvertedPage>],
+		to_converter_tx: &mut UnboundedSender<ConverterMsg>
+	) {
+		let page = msg.expect("Got error from converter");
+		let num = page.num;
+
+		pages[num] = Some(page);
+
+		let num_got = pages.iter()
+			.filter(|p| p.is_some())
+			.count();
+
+		// we have to tell it to jump to a certain page so that it will actually render it (since
+		// it only renders fanning out from the page that we currently have selected)
+		to_converter_tx.send(ConverterMsg::GoToPage(num_got)).unwrap();
+	}
+
+	let main_area = Rect {
+		x: 0,
+		y: 0,
+		width: columns - 2,
+		height: rows - 6
+	};
+	to_render_tx.send(RenderNotif::Area(main_area)).unwrap();
+
+	while pages.is_empty() || pages.iter().any(|p| p.is_none()) {
+		tokio::select! {
+			Some(renderer_msg) = from_render_rx.recv() => {
+				handle_renderer_msg(renderer_msg, &mut pages, &mut to_converter_tx);
+			},
+			Some(converter_msg) = from_converter_rx.recv() => {
+				handle_converter_msg(converter_msg, &mut pages, &mut to_converter_tx);
+			}
+		}
+	}
+
+	black_box(pages);
+}