Merge pull request #1 from Namophice/dev

Dev

.gitignore

@@ -12,3 +12,8 @@ gradle-app.setting
 
 # # Work around https://youtrack.jetbrains.com/issue/IDEA-116898
 # gradle/wrapper/gradle-wrapper.properties
+
+.idea/
+cache
+error.log
+gradle/

README.en.md

@@ -1,36 +0,0 @@
-# ink-photo-album
-
-#### Description
-用Java编写的基于树莓派的电子墨水屏相册
-
-#### Software Architecture
-Software architecture description
-
-#### Installation
-
-1.  xxxx
-2.  xxxx
-3.  xxxx
-
-#### Instructions
-
-1.  xxxx
-2.  xxxx
-3.  xxxx
-
-#### Contribution
-
-1.  Fork the repository
-2.  Create Feat_xxx branch
-3.  Commit your code
-4.  Create Pull Request
-
-
-#### Gitee Feature
-
-1.  You can use Readme\_XXX.md to support different languages, such as Readme\_en.md, Readme\_zh.md
-2.  Gitee blog [blog.gitee.com](https://blog.gitee.com)
-3.  Explore open source project [https://gitee.com/explore](https://gitee.com/explore)
-4.  The most valuable open source project [GVP](https://gitee.com/gvp)
-5.  The manual of Gitee [https://gitee.com/help](https://gitee.com/help)
-6.  The most popular members  [https://gitee.com/gitee-stars/](https://gitee.com/gitee-stars/)

README.md

@@ -3,35 +3,17 @@
 #### 介绍
 用Java编写的基于树莓派的电子墨水屏相册
 
-#### 软件架构
-软件架构说明
+#### 效果图
+![效果图1](https://images.gitee.com/uploads/images/2021/0807/125215_b6d4fd2e_7404037.jpeg "微信图片_20210807125140.jpg")
 
+![效果图2](https://images.gitee.com/uploads/images/2021/0807/125242_cfcada7d_7404037.jpeg "微信图片_20210807125134.jpg")
 
-#### 安装教程
+![效果图3](https://images.gitee.com/uploads/images/2021/0807/125303_bedcd72e_7404037.jpeg "微信图片_20210807125148.jpg")
 
-1.  xxxx
-2.  xxxx
-3.  xxxx
+#### 相关链接
+    https://gitee.com/namophice/ink-photo-album
+    https://github.com/Namophice/ink-photo-album
+    https://zhuanlan.zhihu.com/p/397288660
 
-#### 使用说明
-
-1.  xxxx
-2.  xxxx
-3.  xxxx
-
-#### 参与贡献
-
-1.  Fork 本仓库
-2.  新建 Feat_xxx 分支
-3.  提交代码
-4.  新建 Pull Request
-
-
-#### 特技
-
-1.  使用 Readme\_XXX.md 来支持不同的语言，例如 Readme\_en.md, Readme\_zh.md
-2.  Gitee 官方博客 [blog.gitee.com](https://blog.gitee.com)
-3.  你可以 [https://gitee.com/explore](https://gitee.com/explore) 这个地址来了解 Gitee 上的优秀开源项目
-4.  [GVP](https://gitee.com/gvp) 全称是 Gitee 最有价值开源项目，是综合评定出的优秀开源项目
-5.  Gitee 官方提供的使用手册 [https://gitee.com/help](https://gitee.com/help)
-6.  Gitee 封面人物是一档用来展示 Gitee 会员风采的栏目 [https://gitee.com/gitee-stars/](https://gitee.com/gitee-stars/)
+#### PS：
+    此仓库仅包含源码、图片等资源，感兴趣者可拉取代码到本地编译运行，如有疑问或建议，可提issues或通过邮箱（namophice@foxmail.com）与QQ（1763453138）联系我，有时间会在后续版本解决与优化（或许）。

build.gradle

@@ -0,0 +1,33 @@
+plugins {
+    id 'java-library'
+    id 'com.github.johnrengelman.shadow' version '6.1.0'
+}
+
+
+group 'icu.namophice'
+version '1.0-SNAPSHOT'
+description = 'slow'
+sourceCompatibility = JavaVersion.VERSION_11
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+}
+
+dependencies {
+    implementation group: 'com.alibaba', name: 'fastjson', version: '1.2.76'
+    // RaspbarryPi驱动接口核心包
+    implementation group: 'com.pi4j', name: 'pi4j-core', version: '1.4'
+}
+
+tasks.withType(JavaCompile) {
+    options.encoding = 'UTF-8'
+}
+
+jar {
+    manifest {
+        attributes(
+            'Main-Class': 'icu.namophice.inkphotoalbum.Main'
+        )
+    }
+}

conf.json

@@ -0,0 +1,4 @@
+{
+    "enable_image_fill": true, // 是否开启图片填充
+    "local_images_mode": false // 本地图片库模式
+}

settings.gradle

@@ -0,0 +1,2 @@
+rootProject.name = 'ink-photo-album'
+

src/main/java/icu/namophice/inkphotoalbum/Main.java

@@ -0,0 +1,39 @@
+package icu.namophice.inkphotoalbum;
+
+import icu.namophice.inkphotoalbum.business.MasterService;
+import icu.namophice.inkphotoalbum.config.DefaultConfig;
+import icu.namophice.inkphotoalbum.utils.CommonUtil;
+
+/**
+ * @author Namophice
+ * @createTime 2021-07-29 16:42
+ */
+public class Main {
+
+    public static void main(String [] args) {
+        try {
+            CommonUtil.printLogToConsole("Application Started ...");
+
+            // 初始化配置
+            DefaultConfig.initConfig();
+
+            // 从cache文件获取imageIndex
+            DefaultConfig.initImageIndexWithCache();
+
+            // 进入主流程
+            MasterService.master();
+        } catch (Exception e) {
+            CommonUtil.printErrorToLogFile(e);
+        } finally {
+            try {
+                // 打印下次获取的图片下标位置到cache文件
+                CommonUtil.printImageIndexToCache(DefaultConfig.imageIndex);
+            } catch (Exception e) {
+                CommonUtil.printErrorToLogFile(e);
+            }
+
+            CommonUtil.printLogToConsole("Application Exit !");
+        }
+    }
+
+}

src/main/java/icu/namophice/inkphotoalbum/business/MasterService.java

@@ -0,0 +1,154 @@
+package icu.namophice.inkphotoalbum.business;
+
+import icu.namophice.inkphotoalbum.config.DefaultConfig;
+import icu.namophice.inkphotoalbum.driver.EPaper;
+import icu.namophice.inkphotoalbum.utils.CommonUtil;
+import icu.namophice.inkphotoalbum.utils.ImageUtil;
+
+import java.awt.image.BufferedImage;
+import java.io.*;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Random;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * @author Namophice
+ * @createTime 2021-08-05 10:27
+ */
+public class MasterService {
+
+    public static void master() throws IOException, InterruptedException {
+        CommonUtil.printLogToConsole("The master program is running ...");
+
+        if (DefaultConfig.imageIndex < 0) {
+            DefaultConfig.imageIndex = 0;
+        }
+
+        EPaper ePaper = EPaper.getInstance();
+        ePaper.init();
+
+        if (DefaultConfig.imageIndex == 0) {
+            BufferedImage defaultImage = ImageUtil.getImageToScreen();
+
+            CommonUtil.printLogToConsole("Print images to screen ...");
+            ePaper.drawImage(defaultImage);
+        }
+
+        DefaultConfig.defaultImageIsLoaded = true;
+
+        if (DefaultConfig.local_images_mode()) { // local
+            CommonUtil.printLogToConsole("Enabled local images mode ...");
+
+            CommonUtil.printLogToConsole("Find images directory ...");
+            File imagesDir = new File(CommonUtil.rootPath + "/" + DefaultConfig.imagePath);
+
+            if (imagesDir.exists()) {
+                if (imagesDir.isDirectory()) {
+                    CommonUtil.printLogToConsole("Images directory is exists ...");
+
+                    CommonUtil.printLogToConsole("Find images files ...");
+                    File[] imageList = imagesDir.listFiles();
+                    imagesDir = null;
+
+                    if (imageList == null || imageList.length < 1) {
+                        DefaultConfig.imageIndex = 0;
+                        return;
+                    }
+
+                    imageList = Arrays.stream(imageList).filter(imageFile -> !imageFile.isDirectory()).toArray(File[]::new);
+                    if (imageList.length < 1) {
+                        DefaultConfig.imageIndex = 0;
+                        return;
+                    }
+
+                    if (DefaultConfig.imageIndex < imageList.length) {
+                        BufferedImage targetImage = ImageUtil.getImageToScreen(imageList[DefaultConfig.imageIndex]);
+
+                        CommonUtil.printLogToConsole("Print images to screen ...");
+                        ePaper.drawImage(targetImage);
+
+                        DefaultConfig.imageIndex++;
+                    } else {
+                        DefaultConfig.imageIndex = 0;
+                    }
+                }
+            }
+        } else { // remote
+            CommonUtil.printLogToConsole("Enabled remote images mode ...");
+
+            if (!(DefaultConfig.imageIndex < 20)) {
+                DefaultConfig.imageIndex = 0;
+            }
+
+            StringBuffer htmlStr = new StringBuffer();
+
+            InputStream inputStream = null;
+            InputStreamReader inputStreamReader = null;
+            BufferedReader bufferedReader = null;
+
+            try {
+                URL url = new URL("https://wall.alphacoders.com/popular.php?page=" + (DefaultConfig.imageIndex + 1));
+                inputStream = url.openStream();
+                inputStreamReader = new InputStreamReader(inputStream, "utf-8");
+                bufferedReader = new BufferedReader(inputStreamReader);
+
+                String line;
+                while ((line = bufferedReader.readLine()) != null) {
+                    htmlStr.append(line).append("\n");
+                }
+
+                bufferedReader.close();
+            } catch (IOException e) {
+                DefaultConfig.imageIndex = 0;
+                throw e;
+            }finally {
+                try {
+                    if(bufferedReader!=null){
+                        bufferedReader.close();
+                        bufferedReader=null;
+                    }
+                    if(inputStreamReader!=null){
+                        inputStreamReader.close();
+                        inputStreamReader=null;
+                    }
+                    if(inputStream!=null){
+                        inputStream.close();
+                        inputStream=null;
+                    }
+                } catch (IOException e) {
+                    throw e;
+                }
+            }
+
+            if (htmlStr.length() > 0) {
+                final List<String> imageUrlList = new ArrayList<>();
+
+                final String IMGURL_REG = "(https://images(.*)thumbbig-(\\d*).jpg)";
+                Matcher matcher = Pattern.compile(IMGURL_REG).matcher(htmlStr);
+                while (matcher.find()){
+                    imageUrlList.add(matcher.group());
+                }
+
+                if (imageUrlList.size() < 1) {
+                    DefaultConfig.imageIndex = 0;
+                    return;
+                }
+
+                String imageUrl = imageUrlList.get(new Random().nextInt(imageUrlList.size()));
+                imageUrl = imageUrl.replace("/thumbbig-", "/");
+
+                BufferedImage targetImage = ImageUtil.getImageToScreen(imageUrl, true);
+
+                CommonUtil.printLogToConsole("Print images to screen ...");
+                ePaper.drawImage(targetImage);
+
+                DefaultConfig.imageIndex++;
+            }
+        }
+    }
+
+}

src/main/java/icu/namophice/inkphotoalbum/config/DefaultConfig.java

@@ -0,0 +1,135 @@
+package icu.namophice.inkphotoalbum.config;
+
+import com.alibaba.fastjson.JSONObject;
+import icu.namophice.inkphotoalbum.utils.CommonUtil;
+
+import java.io.*;
+
+/**
+ * @author Namophice
+ * @createTime 2021-08-04 11:46
+ */
+public class DefaultConfig {
+
+    public static final String configFileName = "conf.json";
+    public static final String cacheFileName = "cache";
+
+    public static final String imagePath = "images";
+
+    public static int imageIndex;
+
+    /**
+     * 默认图片是否被加载过
+     */
+    public static boolean defaultImageIsLoaded = false;
+
+    /**
+     * 是否开启图片填充
+     */
+    private static boolean enable_image_fill = false;
+    public static final boolean enable_image_fill() {
+        return enable_image_fill;
+    }
+
+    /**
+     * 本地图片库模式
+     */
+    private static boolean local_images_mode = true;
+    public static boolean local_images_mode() {
+        return local_images_mode;
+    }
+
+    /**
+     * 初始化配置文件
+     */
+    public static void initConfig() {
+        CommonUtil.printLogToConsole("Init config ...");
+
+        File configFile = new File(CommonUtil.rootPath + "/" + configFileName);
+        if (configFile.exists()) {
+
+            BufferedReader bufferedReader = null;
+            final StringBuilder confJsonStrBuilder = new StringBuilder();
+
+            try {
+                bufferedReader = new BufferedReader(new FileReader(configFile));
+
+                String lineStr;
+
+                while ((lineStr = bufferedReader.readLine()) != null) {
+                    confJsonStrBuilder.append(lineStr).append("\n");
+                }
+
+                bufferedReader.close();
+            } catch (Exception e) {
+                CommonUtil.printErrorToLogFile(e);
+            } finally {
+                if (bufferedReader != null) {
+                    try {
+                        bufferedReader.close();
+                    } catch (Exception e) {
+                        CommonUtil.printErrorToLogFile(e);
+                    }
+                }
+            }
+
+            final String confJsonStr = confJsonStrBuilder.toString();
+            if (confJsonStr.length() > 2 && confJsonStr.contains("{") && confJsonStr.contains("}")) {
+                JSONObject conJsonMap = JSONObject.parseObject(confJsonStr);
+                if (conJsonMap.size() > 0) {
+                    if (conJsonMap.get("enable_image_fill") != null) {
+                        final Boolean cst_enable_image_fill = conJsonMap.getBoolean("enable_image_fill");
+                        if (cst_enable_image_fill != null) {
+                            enable_image_fill = cst_enable_image_fill;
+                        }
+                    }
+                    if (conJsonMap.get("local_images_mode") != null) {
+                        final Boolean cst_local_images_mode = conJsonMap.getBoolean("local_images_mode");
+                        if (cst_local_images_mode != null) {
+                            local_images_mode = cst_local_images_mode;
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * 从cache文件获取imageIndex
+     * @throws IOException
+     */
+    public static void initImageIndexWithCache() throws IOException {
+        CommonUtil.printLogToConsole("Init image index with cache ...");
+
+        DefaultConfig.imageIndex = 0;
+
+        File cacheFile = new File(CommonUtil.rootPath + "/" + cacheFileName);
+        if (cacheFile.exists() && !cacheFile.isDirectory()) {
+            BufferedReader bufferedReader = null;
+            String lineStr = null;
+
+            try {
+                bufferedReader = new BufferedReader(new FileReader(cacheFile));
+
+                lineStr = bufferedReader.readLine().trim();
+
+                bufferedReader.close();
+            } catch (Exception e) {
+                CommonUtil.printErrorToLogFile(e);
+            } finally {
+                if (bufferedReader != null) {
+                    try {
+                        bufferedReader.close();
+                    } catch (Exception e) {
+                        CommonUtil.printErrorToLogFile(e);
+                    }
+                }
+            }
+
+            if (lineStr.length() > 0) {
+                DefaultConfig.imageIndex = Integer.parseInt(lineStr);
+            }
+        }
+    }
+
+}

src/main/java/icu/namophice/inkphotoalbum/driver/EPaper.java

@@ -0,0 +1,342 @@
+package icu.namophice.inkphotoalbum.driver;
+
+import com.pi4j.io.gpio.*;
+import com.pi4j.io.spi.SpiChannel;
+import com.pi4j.io.spi.SpiDevice;
+import com.pi4j.io.spi.SpiFactory;
+import icu.namophice.inkphotoalbum.utils.CommonUtil;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.DataBufferByte;
+import java.io.IOException;
+
+/**
+ * @author Namophice
+ * @createTime 2021-07-29 17:00
+ */
+public class EPaper {
+
+    public static final int width = 800;
+    public static final int height = 480;
+    public static final long resolution = width * height;
+
+    private EPaper() {}
+
+    private static EPaper ePaper;
+
+    public static EPaper getInstance() {
+        return ePaper = new EPaper();
+    }
+
+    private static GpioPinDigitalOutput CS;
+    private static GpioPinDigitalOutput DC;
+    private static GpioPinDigitalOutput RST;
+    private static GpioPinDigitalInput BUSY;
+
+    public static SpiDevice spiDevice;
+
+    static {
+        RaspiGpioProvider raspiGpioProvider = new RaspiGpioProvider(RaspiPinNumberingScheme.BROADCOM_PIN_NUMBERING);
+
+        final GpioController gpio = GpioFactory.getInstance();
+
+        CS = gpio.provisionDigitalOutputPin(raspiGpioProvider, RaspiBcmPin.GPIO_08, "CS", PinState.HIGH);
+        DC = gpio.provisionDigitalOutputPin(raspiGpioProvider, RaspiBcmPin.GPIO_25, "DC", PinState.HIGH);
+        RST = gpio.provisionDigitalOutputPin(raspiGpioProvider, RaspiBcmPin.GPIO_17, "RST", PinState.HIGH);
+        BUSY = gpio.provisionDigitalInputPin(raspiGpioProvider, RaspiBcmPin.GPIO_24, "BUSY");
+
+        try {
+            spiDevice = SpiFactory.getInstance(SpiChannel.CS1, SpiDevice.DEFAULT_SPI_SPEED, SpiDevice.DEFAULT_SPI_MODE);
+        } catch (Exception e) {
+            CommonUtil.printErrorToLogFile(e);
+        }
+    }
+
+    /**
+     * 绘制图片到屏幕
+     * @param image
+     * @throws IOException
+     * @throws InterruptedException
+     */
+    public void drawImage(BufferedImage image) throws IOException, InterruptedException {
+            this.initLut();
+            this.clear();
+            this.display(image);
+    }
+
+    /**
+     * 重置屏幕
+     * @throws InterruptedException
+     */
+    public void reset() throws InterruptedException {
+        CommonUtil.printLogToConsole("Reset the screen ...");
+
+        RST.high();
+        Thread.sleep(200);
+        RST.low();
+        Thread.sleep(10);
+        RST.high();
+        Thread.sleep(200);
+    }
+
+    /**
+     * 写入指令
+     * @param data
+     * @throws IOException
+     */
+    public void sendCommand(int data) throws IOException {
+        DC.low();
+        CS.low();
+        spiDevice.write((byte) data);
+        CS.high();
+    }
+
+    /**
+     * 写入数据
+     * @param data
+     * @throws IOException
+     */
+    public void sendData(int data) throws IOException {
+        DC.high();
+        CS.low();
+        spiDevice.write((byte) data);
+        CS.high();
+    }
+
+    /**
+     * 检查屏幕是否Busy
+     * @throws IOException
+     * @throws InterruptedException
+     */
+    public void checkBusy() throws IOException, InterruptedException {
+        CommonUtil.printLogToConsole("Check whether the screen is busy ...");
+
+        this.sendCommand((byte) 0x71);
+        while (BUSY.isLow()) {
+            this.sendCommand((byte) 0x71);
+            Thread.sleep(200);
+        }
+    }
+
+    public void init() throws IOException, InterruptedException {
+        CommonUtil.printLogToConsole("Init the driver ...");
+
+        reset();
+
+        this.sendCommand(0x01); // power setting
+        this.sendData(0x17); // 1-0=11: internal power
+        this.sendData(Voltage_Frame_7IN5_V2[6]); // VGH&VGL
+        this.sendData(Voltage_Frame_7IN5_V2[1]); // VSH
+        this.sendData(Voltage_Frame_7IN5_V2[2]); // VSL
+        this.sendData(Voltage_Frame_7IN5_V2[3]); // VSHR
+
+        this.sendCommand(0x82); // # VCOM DC Setting
+        this.sendData(Voltage_Frame_7IN5_V2[4]); // VCOM
+
+        this.sendCommand(0x06); // Booster Setting
+        this.sendData(0x27);
+        this.sendData(0x27);
+        this.sendData(0x2F);
+        this.sendData(0x17);
+
+        this.sendCommand(0x30); // OSC Setting
+        this.sendData(Voltage_Frame_7IN5_V2[0]); // 2-0=100: N=4   5-3=111: M=7    3C=50Hz     3A=100HZ
+
+        this.sendCommand(0x04); // power on
+        this.checkBusy();
+
+        this.sendCommand(0X00); // PANNEL SETTING
+        this.sendData(0x3F); // #KW-3f   KWR-2F	BWROTP 0f	BWOTP 1f
+
+        this.sendCommand(0x61); // tres
+        this.sendData(0x03); // source 800
+        this.sendData(0x20);
+        this.sendData(0x01); // gate 480
+        this.sendData(0xE0);
+
+        this.sendCommand(0X15);
+        this.sendData(0x00);
+
+        this.sendCommand(0X50); // VCOM AND DATA INTERVAL SETTING
+        this.sendData(0x10);
+        this.sendData(0x07);
+
+        this.sendCommand(0X60); // TCON SETTING
+        this.sendData(0x22);
+
+        this.sendCommand(0x65); // Resolution setting
+        this.sendData(0x00);
+        this.sendData(0x00); // 800*480
+        this.sendData(0x00);
+        this.sendData(0x00);
+    }
+
+    /**
+     * 初始化LUT
+     * @throws IOException
+     */
+    public void initLut() throws IOException {
+        CommonUtil.printLogToConsole("Set LUT ...");
+
+        this.sendCommand(0x20);
+        for (int data : LUT_VCOM_7IN5_V2) {
+            this.sendData(data);
+        }
+
+        this.sendCommand(0x21);
+        for (int data : LUT_WW_7IN5_V2) {
+            this.sendData(data);
+        }
+
+        this.sendCommand(0x22);
+        for (int data : LUT_BW_7IN5_V2) {
+            this.sendData(data);
+        }
+
+        this.sendCommand(0x23);
+        for (int data : LUT_WB_7IN5_V2) {
+            this.sendData(data);
+        }
+
+        this.sendCommand(0x24);
+        for (int data : LUT_BB_7IN5_V2) {
+            this.sendData(data);
+        }
+    }
+
+    /**
+     * 清屏
+     * @throws IOException
+     * @throws InterruptedException
+     */
+    public void clear() throws IOException, InterruptedException {
+        CommonUtil.printLogToConsole("Clear screen ...");
+
+        this.initLut();
+
+        this.sendCommand(0x10);
+
+        for (int i = 0; i < resolution; i++) {
+            this.sendData(0xFF);
+        }
+
+        this.sendCommand(0x13);
+
+        for (int i = 0; i < resolution; i++) {
+            this.sendData(0xFF);
+        }
+
+        this.sendCommand(0x12);
+
+        this.checkBusy();
+    }
+
+    /**
+     * 绘制屏幕画面
+     * @param image
+     * @throws IOException
+     * @throws InterruptedException
+     */
+    public void display(BufferedImage image) throws IOException, InterruptedException {
+        final byte[] pixels = ((DataBufferByte)(image.getRaster().getDataBuffer())).getData();
+        this.display(pixels);
+    }
+
+    /**
+     * 绘制屏幕画面
+     * @param pixels
+     * @throws IOException
+     * @throws InterruptedException
+     */
+    public void display(byte[] pixels) throws IOException, InterruptedException {
+        CommonUtil.printLogToConsole("Print image to screen ...");
+
+        this.initLut();
+
+        this.sendCommand(0x13);
+
+        int step = 0;
+        int temp = 0;
+
+        for (int i = 0; i < 800 * 480; i++) {
+            int grayNum = pixels[i] & 0xFF;
+            if (grayNum < GRAY_SCALE_OF_4[0]) {
+                temp |= 1;
+            } else if(grayNum < GRAY_SCALE_OF_4[1]){
+                temp |= 0;
+            }else if (grayNum < GRAY_SCALE_OF_4[2]) {
+                temp |= 1;
+            } else if(grayNum <= GRAY_SCALE_OF_4[3]){
+                temp |= 0;
+            }
+
+            step++;
+            if (step != 8) {
+                temp = temp << 1;
+            } else {
+                step = 0;
+                this.sendData(temp);
+                temp = 0;
+            }
+        }
+
+        this.sendCommand(0x12);
+
+        this.checkBusy();
+    }
+
+    private final static int[] Voltage_Frame_7IN5_V2 = { 0x6, 0x3F, 0x3F, 0x11, 0x24, 0x7, 0x17 };
+
+    private static final int[] GRAY_SCALE_OF_4 = {0xff / 4, 0xff / 4 * 2, 0xff / 4 * 3, 0xff};
+
+    private final static int[] LUT_VCOM_7IN5_V2 = {
+        0x0, 0xF, 0xF, 0x0, 0x0, 0x1,
+        0x0, 0xF, 0x1, 0xF, 0x1, 0x2,
+        0x0, 0xF, 0xF, 0x0, 0x0, 0x1,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0
+    };
+
+    private final static int[] LUT_WW_7IN5_V2 = {
+        0x10, 0xF, 0xF, 0x0, 0x0, 0x1,
+        0x84, 0xF, 0x1, 0xF, 0x1, 0x2,
+        0x20, 0xF, 0xF, 0x0, 0x0, 0x1,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0
+    };
+
+    private final static int[] LUT_BW_7IN5_V2 = {
+        0x10, 0xF, 0xF, 0x0, 0x0, 0x1,
+        0x84, 0xF, 0x1, 0xF, 0x1, 0x2,
+        0x20, 0xF, 0xF, 0x0, 0x0, 0x1,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0
+    };
+
+    private final static int[] LUT_WB_7IN5_V2 = {
+        0x80, 0xF, 0xF, 0x0, 0x0, 0x1,
+        0x84, 0xF, 0x1, 0xF, 0x1, 0x2,
+        0x40, 0xF, 0xF, 0x0, 0x0, 0x1,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0
+    };
+
+    private final static int[] LUT_BB_7IN5_V2 = {
+        0x80, 0xF, 0xF, 0x0, 0x0, 0x1,
+        0x84, 0xF, 0x1, 0xF, 0x1, 0x2,
+        0x40, 0xF, 0xF, 0x0, 0x0, 0x1,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+        0x0, 0x0, 0x0, 0x0, 0x0, 0x0
+    };
+
+}

src/main/java/icu/namophice/inkphotoalbum/utils/CommonUtil.java

@@ -0,0 +1,97 @@
+package icu.namophice.inkphotoalbum.utils;
+
+import icu.namophice.inkphotoalbum.config.DefaultConfig;
+
+import java.io.*;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+/**
+ * @author Namophice
+ * @createTime 2021-08-01 17:44
+ */
+public class CommonUtil {
+
+    /**
+     * 获取程序运行根目录
+     * @return
+     */
+    public static String rootPath = System.getProperty("user.dir");
+
+    /**
+     * 打印异常信息至error.log
+     * @param exception
+     */
+    public static void printErrorToLogFile(Exception exception) {
+        printErrorToLogFile(exception, true);
+    }
+
+    /**
+     * 打印异常信息至error.log
+     * @param exception
+     * @param clearLogFile
+     */
+    public static void printErrorToLogFile(Exception exception, boolean clearLogFile) {
+        if (exception != null) {
+            try {
+                exception.printStackTrace();
+
+                StringWriter sw = new StringWriter();
+                PrintWriter pw = new PrintWriter(sw);
+
+                exception.printStackTrace(pw);
+                final String errorDetail = "Error [" + DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss:ms").format(LocalDateTime.now()) + "] " + sw;
+
+                sw.close();
+                pw.close();
+
+                File logFile = new File(rootPath + "/error.log");
+                if ((!logFile.exists()) || logFile.isDirectory()) {
+                    logFile.createNewFile();
+                }
+
+                FileWriter fileWriter = new FileWriter(logFile, clearLogFile);
+                fileWriter.write(errorDetail);
+                fileWriter.flush();
+                fileWriter.close();
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    /**
+     * 获取日志时间头
+     * @return
+     */
+    public static String getLogTime() {
+        return "[" + DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss:ms").format(LocalDateTime.now()) + "] ";
+    }
+
+    /**
+     * 打印日志到控制台
+     * @param log
+     */
+    public static void printLogToConsole(final String log) {
+        System.out.println("Info " + getLogTime() + log);
+    }
+
+    /**
+     * 打印图片下标位置到cache文件
+     * @param imageIndex
+     * @throws IOException
+     */
+    public static void printImageIndexToCache(int imageIndex) throws IOException {
+        CommonUtil.printLogToConsole("Print image index to cache file ...");
+
+        File cacheFile = new File(CommonUtil.rootPath + "/" + DefaultConfig.cacheFileName);
+        if ((!cacheFile.exists()) || cacheFile.isDirectory()) {
+            cacheFile.createNewFile();
+        }
+        FileWriter fileWriter = new FileWriter(cacheFile, false);
+        fileWriter.write(String.valueOf(imageIndex));
+        fileWriter.flush();
+        fileWriter.close();
+    }
+
+}

src/main/java/icu/namophice/inkphotoalbum/utils/ImageUtil.java

@@ -0,0 +1,344 @@
+package icu.namophice.inkphotoalbum.utils;
+
+import icu.namophice.inkphotoalbum.config.DefaultConfig;
+import icu.namophice.inkphotoalbum.driver.EPaper;
+
+import javax.imageio.ImageIO;
+import java.awt.*;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import java.net.URL;
+import java.util.Random;
+
+/**
+ * @author Namophice
+ * @createTime 2021-08-04 16:28
+ */
+public class ImageUtil {
+
+    /**
+     * 获取可直接打印至屏幕的Image流
+     * @param imagePath
+     * @param isRemoteUrl
+     * @return
+     * @throws IOException
+     */
+    public static BufferedImage getImageToScreen(final String imagePath, final boolean isRemoteUrl) throws IOException {
+        BufferedImage targetImage = getImage(imagePath, isRemoteUrl);
+        targetImage = tailoringImage(targetImage, EPaper.width, EPaper.height, DefaultConfig.enable_image_fill());
+        targetImage = getGaryImg(targetImage);
+
+        return targetImage;
+    }
+
+    /**
+     * 获取可直接打印至屏幕的Image流
+     * @param imageFile
+     * @return
+     * @throws IOException
+     */
+    public static BufferedImage getImageToScreen(File imageFile) throws IOException {
+        BufferedImage targetImage = getImage(imageFile);
+        targetImage = tailoringImage(targetImage, EPaper.width, EPaper.height, DefaultConfig.enable_image_fill());
+        targetImage = getGaryImg(targetImage);
+
+        return targetImage;
+    }
+
+    /**
+     * 获取可直接打印至屏幕的Image流
+     * @return
+     * @throws IOException
+     */
+    public static BufferedImage getImageToScreen() throws IOException {
+        return getImageToScreen(null);
+    }
+
+    /**
+     * 获取图片流
+     * @param imageUrl
+     * @param isRemoteUrl
+     * @return
+     * @throws IOException
+     */
+    public static BufferedImage getImage(final String imageUrl, final boolean isRemoteUrl) throws IOException {
+        CommonUtil.printLogToConsole("Input image to BufferedImage ...");
+
+        if (imageUrl == null || imageUrl.length() < 1) {
+            return getDefaultImage();
+        } else {
+            InputStream imageStream;
+
+            if (isRemoteUrl) {
+                CommonUtil.printLogToConsole("Image path: " + imageUrl + " ...");
+
+                URL url = new URL(imageUrl);
+                imageStream = url.openStream();
+            } else {
+                File imgFile = new File(imageUrl);
+                if (imgFile.exists()) {
+                    CommonUtil.printLogToConsole("Image path: " + imgFile.getAbsolutePath() + " ...");
+
+                    imageStream = new FileInputStream(imgFile);
+                } else {
+                    return getDefaultImage();
+                }
+            }
+
+            BufferedImage originImage = ImageIO.read(imageStream);
+            imageStream.close();
+            imageStream = null;
+
+            BufferedImage targetImage = new BufferedImage(originImage.getWidth(), originImage.getHeight(), BufferedImage.TYPE_BYTE_GRAY);
+            for (int i = 0; i < originImage.getWidth(); i++) {
+                for (int j = 0; j < originImage.getHeight(); j++) {
+                    targetImage.setRGB(i, j, originImage.getRGB(i, j));
+                }
+            }
+
+            return targetImage;
+        }
+    }
+
+    /**
+     * 获取图片流
+     * @param imageFile
+     * @return
+     * @throws IOException
+     */
+    public static BufferedImage getImage(File imageFile) throws IOException {
+        CommonUtil.printLogToConsole("Input image to BufferedImage ...");
+
+        if (imageFile == null || !imageFile.exists() || imageFile.isDirectory()) {
+            return getDefaultImage();
+        } else {
+            CommonUtil.printLogToConsole("Image path: " + imageFile.getAbsolutePath() + " ...");
+
+            InputStream imageStream = new FileInputStream(imageFile);
+            BufferedImage originImage = ImageIO.read(imageStream);
+            imageStream.close();
+
+            BufferedImage targetImage = new BufferedImage(originImage.getWidth(), originImage.getHeight(), BufferedImage.TYPE_BYTE_GRAY);
+            for (int i = 0; i < originImage.getWidth(); i++) {
+                for (int j = 0; j < originImage.getHeight(); j++) {
+                    targetImage.setRGB(i, j, originImage.getRGB(i, j));
+                }
+            }
+
+            return targetImage;
+        }
+    }
+
+    /**
+     * 获取默认图片流
+     * @return
+     * @throws IOException
+     */
+    public static BufferedImage getDefaultImage() throws IOException {
+        CommonUtil.printLogToConsole("Input default image to BufferedImage ...");
+
+        InputStream defaultImageStream = CommonUtil.class.getClassLoader().getResourceAsStream("images/default.bmp");
+        BufferedImage originImage = ImageIO.read(defaultImageStream);
+        defaultImageStream.close();
+        defaultImageStream = null;
+
+        BufferedImage targetImage = new BufferedImage(originImage.getWidth(), originImage.getHeight(), BufferedImage.TYPE_BYTE_GRAY);
+        for (int i = 0; i < originImage.getWidth(); i++) {
+            for (int j = 0; j < originImage.getHeight(); j++) {
+                targetImage.setRGB(i, j, originImage.getRGB(i, j));
+            }
+        }
+
+        return targetImage;
+    }
+
+    /**
+     * 对图片做自适应or填充处理（默认自适应）
+     * @param originImage
+     * @param screenWidth
+     * @param screenHeight
+     * @param enable_image_fill
+     * @return
+     */
+    public static BufferedImage tailoringImage(BufferedImage originImage, final int screenWidth, final int screenHeight, final boolean enable_image_fill) {
+        CommonUtil.printLogToConsole("Tailoring image with screen ...");
+
+        // 获取原始图片宽高
+        final BigDecimal originWidth = new BigDecimal(originImage.getWidth());
+        final BigDecimal originHeight = new BigDecimal(originImage.getHeight());
+
+        BufferedImage targetImage;
+
+        if (originWidth.intValue() == screenWidth && originHeight.intValue() == screenHeight) { // 图片宽高 == 屏幕宽高
+            return originImage;
+        } else if (originWidth.intValue() < screenWidth && originHeight.intValue() < screenHeight) { // 图片宽高 皆小于 屏幕宽高
+            targetImage = new BufferedImage(screenWidth, screenHeight, BufferedImage.TYPE_INT_RGB);
+
+            // 将原图居中，计算原图在输出图片中的位置
+            final int xStart = (screenWidth - originWidth.intValue()) / 2;
+            final int xEnd = originWidth.intValue() + xStart;
+            final int yStart = (screenHeight - originHeight.intValue()) / 2;
+            final int yEnd = originHeight.intValue() + yStart;
+
+            for (int x = 0; x < screenWidth; x++) {
+                for (int y = 0; y < screenHeight; y++) {
+                    // 在输出图片中未被原始图片覆盖的位置直接做涂黑处理
+                    if (x < xStart || x >= xEnd) {
+                        targetImage.setRGB(x, y, 0);
+                    } else {
+                        if (y < yStart || y >= yEnd) {
+                            targetImage.setRGB(x, y, 0);
+                        } else {
+                            targetImage.setRGB(x, y, originImage.getRGB(x - xStart, y - yStart));
+                        }
+                    }
+                }
+            }
+
+            return targetImage;
+        } else { // 图片宽 > 屏幕宽 or 图片高 > 屏幕高
+            // 屏幕宽高比例
+            final BigDecimal screenPercentage = new BigDecimal(screenWidth).divide(new BigDecimal(screenHeight), 5, RoundingMode.HALF_DOWN);
+            // 原图宽高比例
+            final BigDecimal imagePercentage = originWidth.divide(originHeight, 5, RoundingMode.HALF_UP);
+
+
+            int percentageCompareRes = screenPercentage.compareTo(imagePercentage);
+            if (percentageCompareRes == 0) { // 图片宽高比例 == 屏幕宽高比例
+                return originImage;
+            } else {
+                // 等比例放大，相同高度下，屏幕宽度小于原图宽度
+                boolean check = originHeight.multiply(new BigDecimal(screenWidth)).compareTo(originWidth.multiply(new BigDecimal(screenHeight))) < 1;
+
+                if (!DefaultConfig.defaultImageIsLoaded || !enable_image_fill) { // 自适应模式
+                    CommonUtil.printLogToConsole("Enabled image adaptive mode ...");
+
+                    if (check) {
+                        final int targetWight = originWidth.intValue();
+                        final int targetHeight = originWidth.divide(screenPercentage, 0, RoundingMode.HALF_DOWN).intValue();
+
+                        targetImage = new BufferedImage(targetWight, targetHeight, BufferedImage.TYPE_INT_RGB);
+
+                        final int yStart = (targetHeight - originHeight.intValue()) / 2;
+                        final int yEnd = originHeight.intValue() + yStart;
+
+                        for (int x = 0; x < targetWight; x++) {
+                            for (int y = 0; y < targetHeight; y++) {
+                                if (yStart <= y && y < yEnd) {
+                                    targetImage.setRGB(x, y, originImage.getRGB(x, y - yStart));
+                                } else {
+                                    targetImage.setRGB(x, y, 0);
+                                }
+                            }
+                        }
+                    } else {
+                        final int targetWight = originHeight.multiply(screenPercentage).intValue();
+                        final int targetHeight = originHeight.intValue();
+
+                        targetImage = new BufferedImage(targetWight, targetHeight, BufferedImage.TYPE_INT_RGB);
+
+                        final int xStart = (targetWight - originWidth.intValue()) / 2;
+                        final int xEnd = originWidth.intValue() + xStart;
+
+                        for (int x = 0; x < targetWight; x++) {
+                            for (int y = 0; y < targetHeight; y++) {
+                                if (xStart <= x && x < xEnd) {
+                                    targetImage.setRGB(x, y, originImage.getRGB(x - xStart, y));
+                                } else {
+                                    targetImage.setRGB(x, y, 0);
+                                }
+                            }
+                        }
+                    }
+                } else { // 填充模式
+                    CommonUtil.printLogToConsole("Enabled image fill mode ...");
+
+                    if (check) {
+                        final int targetWight = originHeight.multiply(screenPercentage).intValue();
+                        final int targetHeight = originHeight.intValue();
+
+                        targetImage = new BufferedImage(targetWight, targetHeight, BufferedImage.TYPE_INT_RGB);
+
+                        final int xStart = originWidth.subtract(new BigDecimal(targetWight)).divide(new BigDecimal(2), 0, RoundingMode.HALF_UP).intValue();
+                        final int xEnd = originWidth.intValue() - xStart;
+
+                        for (int x = 0; x < originWidth.intValue(); x++) {
+                            for (int y = 0; y < originHeight.intValue(); y++) {
+                                if (xStart <= x && x < xEnd) {
+                                    targetImage.setRGB(x - xStart, y, originImage.getRGB(x, y));
+                                }
+                            }
+                        }
+                    } else {
+                        final int targetWight = originWidth.intValue();
+                        final int targetHeight = originWidth.divide(screenPercentage, 0, RoundingMode.HALF_UP).intValue();
+
+                        targetImage = new BufferedImage(targetWight, targetHeight, BufferedImage.TYPE_INT_RGB);
+
+                        final int yStart = originHeight.subtract(new BigDecimal(targetHeight)).divide(new BigDecimal(2), 0, RoundingMode.HALF_UP).intValue();
+                        final int yEnd = originHeight.intValue() - yStart;
+
+                        for (int x = 0; x < originWidth.intValue(); x++) {
+                            for (int y = 0; y < originHeight.intValue(); y++) {
+                                if (yStart <= y && y < yEnd) {
+                                    targetImage.setRGB(x, y - yStart, originImage.getRGB(x, y));
+                                }
+                            }
+                        }
+                    }
+                }
+
+                // 根据屏幕做等比例缩放
+                CommonUtil.printLogToConsole("Scale image to the screen ...");
+                BufferedImage finallyImage = new BufferedImage(EPaper.width, EPaper.height, BufferedImage.TYPE_BYTE_GRAY);
+                Graphics graphics = finallyImage.getGraphics();
+                graphics.drawImage(targetImage, 0, 0, EPaper.width, EPaper.height, null);
+
+                return finallyImage;
+            }
+        }
+    }
+
+    /**
+     * 获取灰度图
+     * @param originImage
+     * @return
+     */
+    public static BufferedImage getGaryImg(BufferedImage originImage) {
+        CommonUtil.printLogToConsole("Convert RGB to GRAY ...");
+
+        // 获取原始图片宽高
+        final int width = originImage.getWidth();
+        final int height = originImage.getHeight();
+
+        BufferedImage targetImage = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_GRAY);
+        for (int i = 0; i < width; i++) {
+            for (int j = 0; j < height; j++) {
+                int rgb = originImage.getRGB(i, j);
+                int oneGate = rgb & 0xffffff;
+                int randomNum = new Random().nextInt(0xffffff);
+                int binValue;
+
+                //0是黑  1是白 ，或者说数值小就靠近黑色，数值大就靠近白色
+                if(oneGate > 0xec82e0) { // 大于一定数值，直接用白点
+                    binValue = 0xffffff;
+                } else if(oneGate < 0x6ea050) { // 小于一定数值直接用黑点
+                    binValue = 0;
+                } else if(oneGate > randomNum) { // 模拟灰阶使用随机数画白点
+                    binValue = 0xffffff;
+                } else {
+                    binValue = 0;
+                }
+                targetImage.setRGB(i, j, binValue);
+            }
+        }
+
+        return targetImage;
+    }
+
+}

src/test/java/icu/namophice/inkphotoalbum/Test.java

@@ -0,0 +1,33 @@
+package icu.namophice.inkphotoalbum;
+
+import icu.namophice.inkphotoalbum.config.DefaultConfig;
+import icu.namophice.inkphotoalbum.utils.CommonUtil;
+import icu.namophice.inkphotoalbum.utils.ImageUtil;
+
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+
+/**
+ * @author Namophice
+ * @createTime 2021-07-29 16:43
+ */
+public class Test {
+
+    public static void main(String[] args) {
+        try {
+            BufferedImage targetImage = ImageUtil.getImageToScreen(CommonUtil.rootPath + "/" + DefaultConfig.imagePath + "/" + "self_22.jpg", false);
+            printImage(targetImage, CommonUtil.rootPath + "/test.jpg");
+        } catch (Exception e) {
+            e.printStackTrace();
+            CommonUtil.printErrorToLogFile(e);
+        }
+    }
+
+    private static void printImage(BufferedImage image, String path) throws IOException {
+        File file = new File(path);
+        ImageIO.write(image, "JPG", file);
+    }
+
+}

start.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+/usr/bin/rm /opt/software/ink-photo-album/cache
+
+while true
+do
+        cd /opt/software/ink-photo-album
+        /usr/bin/sudo /usr/bin/java -jar /opt/software/ink-photo-album/ink-photo-album-1.0-SNAPSHOT-all.jar
+        sleep 5m
+done