#[macro_use]
extern crate criterion;

use cheval::render_buffer::RenderBuffer;
use cheval::window::window_minifb::WindowMinifb;
use criterion::{criterion_group, criterion_main, Criterion};
use pprof::criterion::{Output, PProfProfiler};

fn render_frame_rgb_a(
	source: &RenderBuffer,
	width: usize,
	height: usize,
	dest_rgb: &mut Vec<u32>,
	dest_a: &mut Vec<u32>,
) {
	WindowMinifb::render_frame_rgb_a(source, width, height, dest_rgb, dest_a);
}

fn criterion_benchmark(c: &mut Criterion) {
	let width = 1920;
	let height = 1080;
	let downscale = 2;

	let source = RenderBuffer::new(width, height);
	let width = width / downscale;
	let height = height / downscale;

	let mut dest_rgb = vec![0u32; width * height];
	let mut dest_a = vec![0u32; width * height];

	c.bench_function("render RGB_A", |b| {
		b.iter(|| render_frame_rgb_a(&source, width, height, &mut dest_rgb, &mut dest_a))
	});
}

//criterion_group!(benches, criterion_benchmark);
criterion_group! {
	name = benches;
	config = Criterion::default().with_profiler(PProfProfiler::new(100, Output::Flamegraph(None)));
	targets = criterion_benchmark
}
criterion_main!(benches);