#![feature(test)]

extern crate oxipng;
extern crate test;

use std::{num::NonZeroU8, path::PathBuf};

use oxipng::{internal_tests::*, *};
use test::Bencher;

// SAFETY: trivially safe. Stopgap solution until const unwrap is stabilized.
const DEFAULT_ZOPFLI_ITERATIONS: NonZeroU8 = unsafe { NonZeroU8::new_unchecked(15) };

#[bench]
fn zopfli_16_bits_strategy_0(b: &mut Bencher) {
    let input = test::black_box(PathBuf::from("tests/files/rgb_16_should_be_rgb_16.png"));
    let png = PngData::new(&input, &Options::default()).unwrap();

    b.iter(|| {
        zopfli_deflate(png.raw.data.as_ref(), DEFAULT_ZOPFLI_ITERATIONS).ok();
    });
}

#[bench]
fn zopfli_8_bits_strategy_0(b: &mut Bencher) {
    let input = test::black_box(PathBuf::from("tests/files/rgb_8_should_be_rgb_8.png"));
    let png = PngData::new(&input, &Options::default()).unwrap();

    b.iter(|| {
        zopfli_deflate(png.raw.data.as_ref(), DEFAULT_ZOPFLI_ITERATIONS).ok();
    });
}

#[bench]
fn zopfli_4_bits_strategy_0(b: &mut Bencher) {
    let input = test::black_box(PathBuf::from(
        "tests/files/palette_4_should_be_palette_4.png",
    ));
    let png = PngData::new(&input, &Options::default()).unwrap();

    b.iter(|| {
        zopfli_deflate(png.raw.data.as_ref(), DEFAULT_ZOPFLI_ITERATIONS).ok();
    });
}

#[bench]
fn zopfli_2_bits_strategy_0(b: &mut Bencher) {
    let input = test::black_box(PathBuf::from(
        "tests/files/palette_2_should_be_palette_2.png",
    ));
    let png = PngData::new(&input, &Options::default()).unwrap();

    b.iter(|| {
        zopfli_deflate(png.raw.data.as_ref(), DEFAULT_ZOPFLI_ITERATIONS).ok();
    });
}

#[bench]
fn zopfli_1_bits_strategy_0(b: &mut Bencher) {
    let input = test::black_box(PathBuf::from(
        "tests/files/palette_1_should_be_palette_1.png",
    ));
    let png = PngData::new(&input, &Options::default()).unwrap();

    b.iter(|| {
        zopfli_deflate(png.raw.data.as_ref(), DEFAULT_ZOPFLI_ITERATIONS).ok();
    });
}