Zhai Can bczhc

## a.md

      
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                bczhc
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              Last active
              January 23, 2026 10:59
            
              
                Steam运行SpaceEngine 偶发kernel panic
              
          
    Arch Linux, Hyprland, Linux bczhc-arch 6.18.2-bczhc-dirty #96 SMP PREEMPT_DYNAMIC Wed Dec 24 14:51:46 CST 2025 x86_64 GNU/Linux
GE-Proton10-28
启动参数：
MANGOHUD_CONFIGFILE=/home/bczhc/.config/mangohud PROTON_USE_WINED3D=0 VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/nvidia_icd.json mangohud %command%


## a.md

      
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                bczhc
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              Created
              January 22, 2026 10:47
            
              
                Segment Anything and GIMP plugin 使用快速笔记 #sam #gimp
              
          
    Segment Anything and GIMP plugin

Clone sam1 and sam2 and set up the environment:
git cl https://github.com/facebookresearch/segment-anything
git clone https://github.com/facebookresearch/segment-anything-2.git

cd segment-anything

  
## a.md

      
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                bczhc
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              January 17, 2026 02:01
            
              
                截至1.12 Wplace快照总区块数 #wplace
              
          
    处理：
ls all/*.diff | parallel -k '                                                                                                                        32s 09:49:48
    filename=$(basename {} .diff);
    # Extract parts: YYYY-MM-DD and HH-MM-SS
    d_part=${filename%T*};
    t_part=${filename#*T};
    # Replace hyphens with colons in the time part only
    t_fixed=$(echo ${t_part%.*} | tr "-" ":");

  
## a.html
<!DOCTYPE html>
<!-- Co-created with Gemini -->
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>贡献热力图 - 多年份支持</title>
    <style>
        :root {
            --cell-size: 11px;
            --cell-gap: 3px;

## a.typ
#set page(width: 4.4in, height: 2in)
#set text(size: .2in)

#show math.equation: set text(font: (
  (
    name: "FZShuSong-Z01",
    covers: regex("\p{Han}"),
  ),
))
#show: set align(center + horizon)

## a.rs
/// 没有支持流式压缩/解压缩
///
/// 手动实现，未使用bitvec bitstream-io 等库，练习作品，还有很多优化空间、、

#![feature(file_buffered)]

use byteorder::{ReadBytesExt, WriteBytesExt, LE};
use clap::Parser;
use std::cmp::{Ordering, Reverse};
use std::collections::{BinaryHeap, HashMap};

## a.cc
#include <iostream>
#include <optional>
#include <vector>

using namespace std;

using Symbol = string;

class Node {
public:

## a.md

      
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                bczhc
                / a.md
            
            
              Created
              December 27, 2025 05:04
            
              
                频域操作实验
              
          
使用Rust写如下程序，用到主要crate有realfft、hound。
读入音频/home/bczhc/Music/2.wav，其总采样点数为N。对左右声道分别实数dft，fft点数为N。
对输出的结果进行降采样，设置一个缩放系数，比如为2.0，那就分配一个新的频域采样数组长度为N/2.0，然后把原fft结果降采样映射到新数组，不能有truncate，也就是新数组第一个元素是旧数组第一个元素，新数组最后一个元素就是旧的最后一个。
把新数组idft成新的音频，输出到/home/bczhc/out.wav，idft点数为新数组的长度。
左右声道的处理部分抽取成函数。缩放系数置为常量。


## a.rs
//! Mainly wrote by Gemini.

use anyhow::{Context, Result};
use clap::Parser;
use hound::{SampleFormat, WavReader, WavSpec, WavWriter};
use num_complex::Complex64;
use rustfft::FftPlanner;
use std::env;
use std::f64::consts::TAU;
use std::path::PathBuf;

## a.rs
// [dependencies]
// macroquad = "0.4.14"
// palette = "0.7.6"

use macroquad::hash;
use macroquad::prelude::*;
use macroquad::ui::{root_ui, widgets};
use palette::{FromColor, Hsl, Srgb};

fn window_conf() -> Conf {
	<!DOCTYPE html>
	<!-- Co-created with Gemini -->
	<html lang="zh">
	<head>
	<meta charset="UTF-8">
	<title>贡献热力图 - 多年份支持</title>
	<style>
	:root {
	--cell-size: 11px;
	--cell-gap: 3px;
	#set page(width: 4.4in, height: 2in)
	#set text(size: .2in)

	#show math.equation: set text(font: (
	(
	name: "FZShuSong-Z01",
	covers: regex("\p{Han}"),
	),
	))
	#show: set align(center + horizon)
	/// 没有支持流式压缩/解压缩
	///
	/// 手动实现，未使用bitvec bitstream-io 等库，练习作品，还有很多优化空间、、

	#![feature(file_buffered)]

	use byteorder::{ReadBytesExt, WriteBytesExt, LE};
	use clap::Parser;
	use std::cmp::{Ordering, Reverse};
	use std::collections::{BinaryHeap, HashMap};
	#include <iostream>
	#include <optional>
	#include <vector>

	using namespace std;

	using Symbol = string;

	class Node {
	public:
	//! Mainly wrote by Gemini.

	use anyhow::{Context, Result};
	use clap::Parser;
	use hound::{SampleFormat, WavReader, WavSpec, WavWriter};
	use num_complex::Complex64;
	use rustfft::FftPlanner;
	use std::env;
	use std::f64::consts::TAU;
	use std::path::PathBuf;
	// [dependencies]
	// macroquad = "0.4.14"
	// palette = "0.7.6"

	use macroquad::hash;
	use macroquad::prelude::*;
	use macroquad::ui::{root_ui, widgets};
	use palette::{FromColor, Hsl, Srgb};

	fn window_conf() -> Conf {