From 88dca85da749c7172a9b990374534162cab01ea8 Mon Sep 17 00:00:00 2001
From: Celeste <colean@colean.cc>
Date: Sat, 29 Jan 2022 19:13:05 +0000
Subject: [PATCH] a

---
 .gitignore  |  1 +
 Cargo.lock  | 95 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 Cargo.toml  |  9 +++++
 src/main.rs | 29 ++++++++++++++++
 4 files changed, 134 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Cargo.lock
 create mode 100644 Cargo.toml
 create mode 100644 src/main.rs

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000..ea8c4bf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 000000000..3acab50
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,95 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "adler32"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aae1277d39aeec15cb388266ecc24b11c80469deae6067e17a1a7aa9e5c1f234"
+
+[[package]]
+name = "autocfg"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
+
+[[package]]
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
+[[package]]
+name = "byteorder"
+version = "1.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
+
+[[package]]
+name = "deflate"
+version = "0.7.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "707b6a7b384888a70c8d2e8650b3e60170dfc6a67bb4aa67b6dfca57af4bedb4"
+dependencies = [
+ "adler32",
+ "byteorder",
+]
+
+[[package]]
+name = "inflate"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f5f9f47468e9a76a6452271efadc88fe865a82be91fe75e6c0c57b87ccea59d4"
+dependencies = [
+ "adler32",
+]
+
+[[package]]
+name = "num-integer"
+version = "0.1.44"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2cc698a63b549a70bc047073d2949cce27cd1c7b0a4a862d08a8031bc2801db"
+dependencies = [
+ "autocfg",
+ "num-traits",
+]
+
+[[package]]
+name = "num-iter"
+version = "0.1.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2021c8337a54d21aca0d59a92577a029af9431cb59b909b03252b9c164fad59"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-traits"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a64b1ec5cda2586e284722486d802acf1f7dbdc623e2bfc57e65ca1cd099290"
+dependencies = [
+ "autocfg",
+]
+
+[[package]]
+name = "png"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0b0cabbbd20c2d7f06dbf015e06aad59b6ca3d9ed14848783e98af9aaf19925"
+dependencies = [
+ "bitflags",
+ "deflate",
+ "inflate",
+ "num-iter",
+]
+
+[[package]]
+name = "pngxor"
+version = "0.1.0"
+dependencies = [
+ "png",
+]
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 000000000..c9be215
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "pngxor"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+png = "0.11.0"
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 000000000..108f2b3
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,29 @@
+use std::fs::File;
+use std::io::BufWriter;
+use std::path::Path;
+use png::HasParameters;
+
+fn main() {
+	println!("a");
+	let decoder = png::Decoder::new(File::open("input.png").unwrap());
+	let (info ,mut reader) = decoder.read_info().unwrap();
+	let mut buf = vec![0; info.buffer_size()];
+	println!("b");
+	reader.next_frame(&mut buf).unwrap();
+	let mut luf = [].to_vec();
+	let mut i = 0;
+	for x in buf {
+		let y = x^255;
+		println!("{}", i);
+		i = i + 1;
+		luf.push(y);
+	}
+	let path = Path::new(r"output.png");
+	let file = File::create(path).unwrap();
+	let ref mut w = BufWriter::new(file);
+	let mut encoder = png::Encoder::new(w, info.width, info.height);
+	encoder.set(info.color_type).set(info.bit_depth);
+	let mut writer = encoder.write_header().unwrap();
+
+	writer.write_image_data(&luf).unwrap();
+}