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use crate::uses::Sync::sync::{Mutex, Once}; use crate::uses::{time::*, *}; use crate::GL; #[cfg(not(feature = "profiling"))] #[macro_export] macro_rules! TIMER { (GL, $_: ident, $b: block) => {{ $b }}; ($_: ident, $b: block) => {{ $b }}; } #[cfg(feature = "profiling")] #[macro_export] macro_rules! TIMER { (GL, $n: ident, $b: block) => {{ profiling::GPU::Start(stringify!($n)); let ret = $b; profiling::GPU::Stop(stringify!($n)); ret }}; ($n: ident, $b: block) => {{ profiling::CPU::Start(stringify!($n)); let ret = $b; profiling::CPU::Stop(stringify!($n)); ret }}; } macro_rules! Profiler { ($n: ident, $t: ty) => { pub mod $n { use super::*; use GenericTimer as Timer; pub fn Start(name: Str) { static INIT: Once = Once::new(); INIT.call_once(move || { logging::Logger::AddPostmortem(PrintAll); }); let mut lock = EXPECT!(map().lock()); let t = lock.remove(name).unwrap_or_else(Timer::new::<$t>); lock.insert(name, t.start(name)); } pub fn Stop(name: Str) { let mut lock = EXPECT!(map().lock()); let t = lock.remove(name).unwrap_or_else(Timer::new::<$t>); lock.insert(name, t.stop(name)); } pub fn Print(name: Str) { let t = EXPECT!(EXPECT!(map().lock()).remove(name), "No timer '{}'", name); print_impl(name, t); } pub fn PrintAll() { let mut all: Vec<_> = EXPECT!(map().lock()).drain().collect(); all.sort_by(|(a, _), (b, _)| a.cmp(b)); all.into_iter().for_each(|(n, t)| print_impl(n, t)); } fn print_impl(name: Str, t: Timer) { let (t, i) = t.get_res(name); let format = move || { for step in &[(1_000_000_000, " s"), (1_000_000, " ms"), (1_000, " us")] { let frame = i * step.0; if t >= frame { return CONCAT!(&(f64::to(t) / f64::to(frame)).to_string(), step.1); } } return CONCAT!(&(f64::to(t) / f64::to(i)).to_string(), " ns"); }; PRINT!("Timer '{}': {} |{}", name, format(), i); } fn map() -> &'static mut Mutex<HashMap<Str, Timer>> { static INIT: Once = Once::new(); static mut MAP: Option<Mutex<HashMap<&str, Timer>>> = None; unsafe { INIT.call_once(|| { MAP = Some(Mutex::new(HashMap::new())); }); MAP.as_mut().unwrap() } } } }; } Profiler!(CPU, CPUTimerStopped); Profiler!(GPU, GLTimer); enum GenericTimer { Started(Started), Done(Done), } impl GenericTimer { fn new<T: New>() -> Self { GenericTimer::Done(T::boxed_new()) } fn start(self, name: Str) -> Self { use GenericTimer::*; match self { Done(done) => GenericTimer::Started(done.start()), Started { .. } => ASSERT!(false, "Timer '{}' already started", name), } } fn stop(self, name: Str) -> Self { use GenericTimer::*; match self { Started(started) => GenericTimer::Done(started.stop()), Done { .. } => ASSERT!(false, "Timer '{}' not started", name), } } fn get_res(self, name: Str) -> (u128, u128) { use GenericTimer::*; match self { Done(done) => done.get_res(), Started(_) => ASSERT!(false, "Timer '{}' not stopped", name), } } } type Started = Box<dyn Stop>; type Done = Box<dyn Start>; trait Start { fn start(self: Box<Self>) -> Started; fn get_res(self: Box<Self>) -> (u128, u128); } trait Stop { fn stop(self: Box<Self>) -> Done; } trait New { fn boxed_new() -> Done; } #[derive(Default)] struct GLTimer { o: GL::Query, total: i64, iters: u128, } impl Start for GLTimer { fn start(self: Box<Self>) -> Started { GLCheck!(gl::BeginQuery(gl::TIME_ELAPSED, self.o.obj)); Box::new(*self) } fn get_res(self: Box<Self>) -> (u128, u128) { let _ = mem::ManuallyDrop::new(self.o); (u128::to(self.total), self.iters) } } impl Stop for GLTimer { fn stop(self: Box<Self>) -> Done { GLCheck!(gl::EndQuery(gl::TIME_ELAPSED)); let mut res = 0; GLCheck!(gl::GetQueryObjecti64v(self.o.obj, gl::QUERY_RESULT, &mut res)); let Self { o, total, iters } = *self; Box::new(Self { o, total: total + res, iters: iters + 1, }) } } impl New for GLTimer { fn boxed_new() -> Done { Box::new(Self::default()) } } #[derive(Default)] struct CPUTimerStopped { total: Duration, iters: u128, } impl Start for CPUTimerStopped { fn start(self: Box<Self>) -> Started { let Self { total, iters } = *self; Box::new(CPUTimerStarted { total, iters, stamp: Instant::now(), }) } fn get_res(self: Box<Self>) -> (u128, u128) { (self.total.as_nanos(), self.iters) } } struct CPUTimerStarted { total: Duration, iters: u128, stamp: Instant, } impl Stop for CPUTimerStarted { fn stop(self: Box<Self>) -> Done { let Self { total, iters, stamp } = *self; Box::new(CPUTimerStopped { total: total + stamp.elapsed(), iters: iters + 1, }) } } impl New for CPUTimerStopped { fn boxed_new() -> Done { Box::new(Self::default()) } }