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#[macro_use]
mod error;
mod camera;
mod config;
mod geometry;
mod image;
mod image_action;
mod key_inputs;
mod material;
mod ray;
mod renderer;
mod scene;
mod scene_controller;
mod terminal;
mod util;
mod vec3;
extern crate image as img;
#[macro_use]
extern crate slog;
extern crate slog_async;
extern crate slog_term;
use std::{
convert::TryFrom,
fs::OpenOptions,
path::Path,
time::{Duration, Instant},
};
use minifb::{Key, Window, WindowOptions};
use slog::{Drain, Logger};
use structopt::StructOpt;
use synchronoise::SignalEvent;
use terminal::Terminal;
use crate::{
scene_controller::{interactive::InteractiveScene, SceneController, SceneData},
vec3::Vec3,
};
use crate::{
camera::Camera,
config::{Args, Config},
error::TracerError,
key_inputs::KeyInputs,
scene::Scene,
};
fn run(config: Config, log: Logger, term: Terminal) -> Result<(), TracerError> {
info!(log, "Starting racer-tracer {}", env!("CARGO_PKG_VERSION"));
let image = image::Image::new(config.screen.width, config.screen.height);
let look_from = Vec3::new(13.0, 2.0, 3.0);
let look_at = Vec3::new(0.0, 0.0, 0.0);
let camera = Camera::new(
look_from,
look_at,
Vec3::new(0.0, 1.0, 0.0),
20.0,
&image,
0.1,
10.0,
);
let scene = Scene::try_new(&config.loader)?;
let mut window_res: Result<(), TracerError> = Ok(());
let mut render_res: Result<(), TracerError> = Ok(());
let exit = SignalEvent::manual(false);
let scene_controller = {
match &config.scene_controller {
config::ConfigSceneController::Interactive => {
let camera_speed = 0.000002;
InteractiveScene::new(
SceneData {
log: log.new(o!("scope" => "scene-controller")),
term,
config: config.clone(),
scene,
camera,
image: image.clone(),
},
camera_speed,
)
}
}
};
let mut inputs = KeyInputs::new(log.new(o!("scope" => "key-inputs")));
inputs.register_inputs(scene_controller.get_inputs());
rayon::scope(|s| {
// Render
s.spawn(|_| {
while render_res.is_ok() {
render_res = (!exit.wait_timeout(Duration::from_secs(0)))
.then_some(|| ())
.ok_or(TracerError::ExitEvent)
.and_then(|_| scene_controller.render());
}
if render_res.is_err() {
exit.signal();
}
});
// Update
s.spawn(|_| {
window_res = Window::new(
"racer-tracer",
image.width,
image.height,
WindowOptions::default(),
)
.map_err(|e| TracerError::FailedToCreateWindow(e.to_string()))
.map(|mut window| {
window.limit_update_rate(Some(std::time::Duration::from_micros(16600)));
window
})
.map(|mut window| {
let mut t = Instant::now();
while window_res.is_ok()
&& window.is_open()
&& !window.is_key_down(Key::Escape)
&& !exit.status()
{
let dt = t.elapsed().as_micros() as f64;
t = Instant::now();
inputs.update(&window, dt);
window_res =
scene_controller
.get_buffer()
.and_then(|maybe_buf| match maybe_buf {
Some(buf) => window
.update_with_buffer(&buf, image.width, image.height)
.map_err(|e| TracerError::FailedToUpdateWindow(e.to_string())),
None => {
window.update();
Ok(())
}
});
}
exit.signal();
scene_controller.stop()
});
});
});
window_res.and(render_res)
}
fn create_log(log_file: &Path) -> Result<Logger, TracerError> {
OpenOptions::new()
.create(true)
.write(true)
.truncate(true)
.open(log_file)
.map(slog_term::PlainDecorator::new)
.map(|log| slog_term::FullFormat::new(log).build().fuse())
.map_err(|e| TracerError::CreateLogError(e.to_string()))
.map(|file_drain| {
let term_drain = slog_term::FullFormat::new(slog_term::TermDecorator::new().build())
.build()
.fuse();
(file_drain, term_drain)
})
.map(|(file_drain, term_drain)| {
let combined =
slog_async::Async::new(slog::Duplicate::new(term_drain, file_drain).fuse())
.build()
.fuse();
Logger::root(combined, o!())
})
}
fn main() {
let log_file = std::env::temp_dir().join("racer-tracer.log");
let log = create_log(log_file.as_ref()).expect("Expected to be able to create a log");
let term = Terminal::new(log.new(o!("scope" => "terminal")));
terminal::write_term!(term, &format!("Log file: {}", log_file.display()));
match Config::try_from(Args::from_args())
.and_then(|config| run(config, log.new(o!("scope" => "run")), term))
{
Err(TracerError::ExitEvent) => {}
Ok(_) => {}
Err(e) => {
error!(log, "Error: {}", e);
let exit_code = i32::from(e);
error!(log, "Exiting with: {}", exit_code);
std::process::exit(exit_code)
}
}
}
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