commit 47315e58ca3eb3aeab75cb91934c36c531cc667b Author: Fu_Quan Date: Thu Nov 20 11:32:05 2025 +0800 Init commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..d003e55 --- /dev/null +++ b/.gitignore @@ -0,0 +1,50 @@ +*.iml +.gradle +/local.properties +/.idea/caches +/.idea/libraries +/.idea/modules.xml +/.idea/workspace.xml +/.idea/navEditor.xml +/.idea/assetWizardSettings.xml +.DS_Store +/build +/captures +.externalNativeBuild +.cxx +local.properties + +# Gradle files +.gradle/ +build/ + +# Local configuration file (sdk path, etc) +local.properties + +# Log/OS Files +*.log + +# Android Studio generated files and folders +captures/ +.externalNativeBuild/ +.cxx/ +*.aab +*.apk +output-metadata.json + +# IntelliJ +*.iml +.idea/ +misc.xml +deploymentTargetDropDown.xml +render.experimental.xml + +# Keystore files +*.jks +*.keystore + +# Google Services (e.g. APIs or Firebase) +google-services.json + +# Android Profiling +*.hprof \ No newline at end of file diff --git a/app/.gitignore b/app/.gitignore new file mode 100644 index 0000000..42afabf --- /dev/null +++ b/app/.gitignore @@ -0,0 +1 @@ +/build \ No newline at end of file diff --git a/app/build.gradle.kts b/app/build.gradle.kts new file mode 100644 index 0000000..79b2331 --- /dev/null +++ b/app/build.gradle.kts @@ -0,0 +1,51 @@ +plugins { + alias(libs.plugins.android.application) +} + +android { + namespace = "moe.fuquan.einkdither" + compileSdk = 34 + + defaultConfig { + applicationId = "moe.fuquan.einkdither" + minSdk = 16 + targetSdk = 34 + versionCode = 1 + versionName = "1.0" + + testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner" + externalNativeBuild { + cmake { + cppFlags += "" + } + } + } + + buildTypes { + release { + isMinifyEnabled = false + proguardFiles( + getDefaultProguardFile("proguard-android-optimize.txt"), + "proguard-rules.pro" + ) + } + } + compileOptions { + sourceCompatibility = JavaVersion.VERSION_1_8 + targetCompatibility = JavaVersion.VERSION_1_8 + } + externalNativeBuild { + cmake { + path = file("src/main/cpp/CMakeLists.txt") + version = "3.22.1" + } + } + ndkVersion = "19.2.5345600" +} + +dependencies { + + implementation(libs.appcompat) + implementation(libs.material) + compileOnly(libs.xposed) +} \ No newline at end of file diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro new file mode 100644 index 0000000..481bb43 --- /dev/null +++ b/app/proguard-rules.pro @@ -0,0 +1,21 @@ +# Add project specific ProGuard rules here. +# You can control the set of applied configuration files using the +# proguardFiles setting in build.gradle. +# +# For more details, see +# http://developer.android.com/guide/developing/tools/proguard.html + +# If your project uses WebView with JS, uncomment the following +# and specify the fully qualified class name to the JavaScript interface +# class: +#-keepclassmembers class fqcn.of.javascript.interface.for.webview { +# public *; +#} + +# Uncomment this to preserve the line number information for +# debugging stack traces. +#-keepattributes SourceFile,LineNumberTable + +# If you keep the line number information, uncomment this to +# hide the original source file name. +#-renamesourcefileattribute SourceFile \ No newline at end of file diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml new file mode 100644 index 0000000..fe62df8 --- /dev/null +++ b/app/src/main/AndroidManifest.xml @@ -0,0 +1,21 @@ + + + + + + + + + + + \ No newline at end of file diff --git a/app/src/main/assets/xposed_init b/app/src/main/assets/xposed_init new file mode 100644 index 0000000..5286e19 --- /dev/null +++ b/app/src/main/assets/xposed_init @@ -0,0 +1 @@ +moe.fuquan.einkdither.DitherHook \ No newline at end of file diff --git a/app/src/main/cpp/CMakeLists.txt b/app/src/main/cpp/CMakeLists.txt new file mode 100644 index 0000000..eaf8ab4 --- /dev/null +++ b/app/src/main/cpp/CMakeLists.txt @@ -0,0 +1,39 @@ + +# For more information about using CMake with Android Studio, read the +# documentation: https://d.android.com/studio/projects/add-native-code.html. +# For more examples on how to use CMake, see https://github.com/android/ndk-samples. + +# Sets the minimum CMake version required for this project. +cmake_minimum_required(VERSION 3.22.1) + +# Declares the project name. The project name can be accessed via ${ PROJECT_NAME}, +# Since this is the top level CMakeLists.txt, the project name is also accessible +# with ${CMAKE_PROJECT_NAME} (both CMake variables are in-sync within the top level +# build script scope). +project("einkdither") + +# Creates and names a library, sets it as either STATIC +# or SHARED, and provides the relative paths to its source code. +# You can define multiple libraries, and CMake builds them for you. +# Gradle automatically packages shared libraries with your APK. +# +# In this top level CMakeLists.txt, ${CMAKE_PROJECT_NAME} is used to define +# the target library name; in the sub-module's CMakeLists.txt, ${PROJECT_NAME} +# is preferred for the same purpose. +# +# In order to load a library into your app from Java/Kotlin, you must call +# System.loadLibrary() and pass the name of the library defined here; +# for GameActivity/NativeActivity derived applications, the same library name must be +# used in the AndroidManifest.xml file. +add_library(${CMAKE_PROJECT_NAME} SHARED + # List C/C++ source files with relative paths to this CMakeLists.txt. + einkdither.cpp) + +# Specifies libraries CMake should link to your target library. You +# can link libraries from various origins, such as libraries defined in this +# build script, prebuilt third-party libraries, or Android system libraries. +target_link_libraries(${CMAKE_PROJECT_NAME} + # List libraries link to the target library + android + jnigraphics + log) diff --git a/app/src/main/cpp/einkdither.cpp b/app/src/main/cpp/einkdither.cpp new file mode 100644 index 0000000..21a0a51 --- /dev/null +++ b/app/src/main/cpp/einkdither.cpp @@ -0,0 +1,89 @@ +#include +#include +#include +#include +#include +#include + +#define LOG_TAG "EinkDither" +#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__) + +template +static inline T clamp(T val, T minVal, T maxVal) { + return (val < minVal) ? minVal : (val > maxVal) ? maxVal : val; +} + +int quantizeTo16Levels(int gray) { + return (gray * 15 + 127) / 255 * 17; +} + +extern "C" +JNIEXPORT jobject JNICALL +Java_moe_fuquan_einkdither_DitherUtils_applyDithering(JNIEnv *env, jclass clazz, jobject bitmap) { + if (bitmap == nullptr) return nullptr; + + AndroidBitmapInfo info; + void* pixels = nullptr; + + if (AndroidBitmap_getInfo(env, bitmap, &info) < 0){ + LOGE("AndroidBitmap_getInfo failed"); + return bitmap; + } +// if (info.format != ANDROID_BITMAP_FORMAT_RGBA_8888) return bitmap; + if (AndroidBitmap_lockPixels(env, bitmap, &pixels) < 0){ + LOGE("AndroidBitmap_getInfo failed"); + return bitmap; + } + + int width = info.width; + int height = info.height; + uint32_t* line = (uint32_t*)pixels; + + // 转换为灰度数组 + int** gray = new int*[height]; + for (int y = 0; y < height; y++) { + gray[y] = new int[width]; + for (int x = 0; x < width; x++) { + uint32_t pixel = line[y * width + x]; + int alpha = (pixel >> 24) & 0xFF; + int r = (pixel >> 16) & 0xFF; + int g = (pixel >> 8) & 0xFF; + int b = (pixel) & 0xFF; + + if (alpha == 0) + gray[y][x] = -1; + else + gray[y][x] = (r * 299 + g * 587 + b * 114) / 1000; + } + } + + // Floyd-Steinberg 抖动 + for (int y = 0; y < height; y++) { + for (int x = 0; x < width; x++) { + if (gray[y][x] == -1) { + line[y * width + x] = 0x00000000; + continue; + } + + int oldPixel = gray[y][x]; + int newPixel = quantizeTo16Levels(oldPixel); + int error = oldPixel - newPixel; + gray[y][x] = newPixel; + + if (x + 1 < width && gray[y][x + 1] != -1) + gray[y][x + 1] = clamp(gray[y][x + 1] + error / 2, 0, 255); + if (y + 1 < height && gray[y + 1][x] != -1) + gray[y + 1][x] = clamp(gray[y + 1][x] + error / 2, 0, 255); + + uint8_t g = gray[y][x]; + line[y * width + x] = 0xFF000000 | (g << 16) | (g << 8) | g; + } + } + + // 清理 + for (int i = 0; i < height; i++) delete[] gray[i]; + delete[] gray; + + AndroidBitmap_unlockPixels(env, bitmap); + return bitmap; +} \ No newline at end of file diff --git a/app/src/main/java/moe/fuquan/einkdither/DitherHook.java b/app/src/main/java/moe/fuquan/einkdither/DitherHook.java new file mode 100644 index 0000000..609b60e --- /dev/null +++ b/app/src/main/java/moe/fuquan/einkdither/DitherHook.java @@ -0,0 +1,519 @@ +package moe.fuquan.einkdither; + +import android.graphics.Bitmap; +import android.graphics.BitmapFactory; +import android.graphics.Color; +import android.graphics.Matrix; +import android.graphics.Paint; +import android.graphics.RectF; +import android.os.Build; +import android.util.Log; +import android.widget.ImageView; +import android.graphics.Rect; +import android.graphics.Canvas; + +import java.io.File; +import java.lang.reflect.Method; +import java.util.Arrays; + +import de.robv.android.xposed.IXposedHookLoadPackage; +import de.robv.android.xposed.IXposedHookZygoteInit; +import de.robv.android.xposed.XC_MethodHook; +import de.robv.android.xposed.XposedBridge; +import de.robv.android.xposed.XposedHelpers; +import de.robv.android.xposed.callbacks.XC_LoadPackage; + +public class DitherHook implements IXposedHookZygoteInit, IXposedHookLoadPackage { + // 使用ThreadLocal避免递归调用 + private static final ThreadLocal isProcessing = new ThreadLocal() { + @Override + protected Boolean initialValue() { + return false; + } + }; + + private static String modulePath; + + String findModuleSo(String soName) { + File baseDir = new File(modulePath).getParentFile(); + File libDir = new File(baseDir, "lib"); + + File[] archDirs = libDir.listFiles(); + if (archDirs != null) { + for (File archDir : archDirs) { + File candidate = new File(archDir, soName); + if (candidate.exists()) { + return candidate.getAbsolutePath(); + } + } + } + return null; + } + + @Override + public void initZygote(StartupParam startupParam) throws Throwable { + modulePath = startupParam.modulePath; + } + + @Override + public void handleLoadPackage(final XC_LoadPackage.LoadPackageParam lpparam) throws Throwable { + DitherUtils.load(findModuleSo("/libeinkdither.so")); + + XposedBridge.log("EinkDither: Processing package " + lpparam.packageName); + + // Hook Bitmap.createBitmap() 的所有重载方法 + hookBitmapCreateMethods(lpparam); + Log.i + // Hook BitmapFactory 的所有decode方法 + hookBitmapFactoryMethods(lpparam); + } + + private void hookBitmapCreateMethods(XC_LoadPackage.LoadPackageParam lpparam) { + // 创建通用的hook逻辑 + XC_MethodHook createBitmapHook = new XC_MethodHook() { + @Override + protected void afterHookedMethod(MethodHookParam param) throws Throwable { + // 检查是否正在处理中，避免递归 + if (isProcessing.get()) { + return; + } + + try { + Bitmap result = (Bitmap) param.getResult(); + if (result != null && !result.isRecycled() && shouldApplyDithering(result)) { + XposedBridge.log("EinkDither: Applying dithering to created bitmap " + result.getWidth() + "x" + result.getHeight()); + + // 设置处理标志 + isProcessing.set(true); + + //Bitmap dithered = applyDithering(result); + Bitmap dithered = DitherUtils.applyDithering(result); + if (dithered != null && dithered != result) { + param.setResult(dithered); + } + } +// } catch (Throwable t) { +// XposedBridge.log("EinkDither: Error in createBitmap hook: " + t.getMessage()); + } finally { + // 清除处理标志 + isProcessing.set(false); + } + } + }; + + try { + // Hook 1: createBitmap(int width, int height, Config config) + XposedHelpers.findAndHookMethod( + Bitmap.class, + "createBitmap", + int.class, int.class, Bitmap.Config.class, + createBitmapHook + ); + + // Hook 2: createBitmap(Bitmap source) + XposedHelpers.findAndHookMethod( + Bitmap.class, + "createBitmap", + Bitmap.class, + createBitmapHook + ); + + // Hook 3: createBitmap(Bitmap source, int x, int y, int width, int height) + XposedHelpers.findAndHookMethod( + Bitmap.class, + "createBitmap", + Bitmap.class, int.class, int.class, int.class, int.class, + createBitmapHook + ); + + // Hook 4: createBitmap(Bitmap source, int x, int y, int width, int height, Matrix m, boolean filter) + XposedHelpers.findAndHookMethod( + Bitmap.class, + "createBitmap", + Bitmap.class, int.class, int.class, int.class, int.class, Matrix.class, boolean.class, + createBitmapHook + ); + + // Hook 5: createBitmap(int[] colors, int offset, int stride, int width, int height, Config config) + XposedHelpers.findAndHookMethod( + Bitmap.class, + "createBitmap", + int[].class, int.class, int.class, int.class, int.class, Bitmap.Config.class, + createBitmapHook + ); + + // Hook 6: createBitmap(int[] colors, int width, int height, Config config) + XposedHelpers.findAndHookMethod( + Bitmap.class, + "createBitmap", + int[].class, int.class, int.class, Bitmap.Config.class, + createBitmapHook + ); + + XposedBridge.log("EinkDither: Successfully hooked all Bitmap.createBitmap() methods"); + + } catch (Throwable t) { + XposedBridge.log("EinkDither: Failed to hook Bitmap.createBitmap(): " + t.getMessage()); + } + } + + private void hookBitmapFactoryMethods(XC_LoadPackage.LoadPackageParam lpparam) { + // 创建通用的BitmapFactory hook逻辑 + XC_MethodHook bitmapFactoryHook = new XC_MethodHook() { + @Override + protected void afterHookedMethod(MethodHookParam param) throws Throwable { + // 检查是否正在处理中，避免递归 + if (isProcessing.get()) { + return; + } + + try { + Bitmap result = (Bitmap) param.getResult(); + if (result != null && !result.isRecycled() && shouldApplyDithering(result)) { + XposedBridge.log("EinkDither: Applying dithering to BitmapFactory bitmap " + result.getWidth() + "x" + result.getHeight()); + + // 设置处理标志 + isProcessing.set(true); + + // Bitmap dithered = applyDithering(result); + Bitmap dithered = DitherUtils.applyDithering(result); + if (dithered != null && dithered != result) { + param.setResult(dithered); + } + } + } catch (Throwable t) { + XposedBridge.log("EinkDither: Error in BitmapFactory hook: " + t.getMessage()); + } finally { + // 清除处理标志 + isProcessing.set(false); + } + } + }; + + try { + // Hook BitmapFactory.decodeFile() 方法 + XposedHelpers.findAndHookMethod( + BitmapFactory.class, + "decodeFile", + String.class, + bitmapFactoryHook + ); + + XposedHelpers.findAndHookMethod( + BitmapFactory.class, + "decodeFile", + String.class, BitmapFactory.Options.class, + bitmapFactoryHook + ); + + // Hook BitmapFactory.decodeResource() 方法 + XposedHelpers.findAndHookMethod( + BitmapFactory.class, + "decodeResource", + android.content.res.Resources.class, int.class, + bitmapFactoryHook + ); + + XposedHelpers.findAndHookMethod( + BitmapFactory.class, + "decodeResource", + android.content.res.Resources.class, int.class, BitmapFactory.Options.class, + bitmapFactoryHook + ); + + // Hook BitmapFactory.decodeStream() 方法 + XposedHelpers.findAndHookMethod( + BitmapFactory.class, + "decodeStream", + java.io.InputStream.class, + bitmapFactoryHook + ); + + XposedHelpers.findAndHookMethod( + BitmapFactory.class, + "decodeStream", + java.io.InputStream.class, Rect.class, BitmapFactory.Options.class, + bitmapFactoryHook + ); + + // Hook BitmapFactory.decodeByteArray() 方法 + XposedHelpers.findAndHookMethod( + BitmapFactory.class, + "decodeByteArray", + byte[].class, int.class, int.class, + bitmapFactoryHook + ); + + XposedHelpers.findAndHookMethod( + BitmapFactory.class, + "decodeByteArray", + byte[].class, int.class, int.class, BitmapFactory.Options.class, + bitmapFactoryHook + ); + + // Hook BitmapFactory.decodeFileDescriptor() 方法 + XposedHelpers.findAndHookMethod( + BitmapFactory.class, + "decodeFileDescriptor", + java.io.FileDescriptor.class, + bitmapFactoryHook + ); + + XposedHelpers.findAndHookMethod( + BitmapFactory.class, + "decodeFileDescriptor", + java.io.FileDescriptor.class, Rect.class, BitmapFactory.Options.class, + bitmapFactoryHook + ); + + // Hook BitmapFactory.decodeResourceStream() 方法 + XposedHelpers.findAndHookMethod( + BitmapFactory.class, + "decodeResourceStream", + android.content.res.Resources.class, android.util.TypedValue.class, + java.io.InputStream.class, Rect.class, BitmapFactory.Options.class, + bitmapFactoryHook + ); + + XposedBridge.log("EinkDither: Successfully hooked all BitmapFactory methods"); + + } catch (Throwable t) { + XposedBridge.log("EinkDither: Failed to hook BitmapFactory methods: " + t.getMessage()); + } + } + + // 判断是否需要应用抖动 + private boolean shouldApplyDithering(Bitmap bitmap) { + if (bitmap == null || bitmap.isRecycled()) { + return false; + } + + // 只对足够大的位图应用抖动，避免处理小图标等 + int width = bitmap.getWidth(); + int height = bitmap.getHeight(); + + // 可以根据需要调整这个阈值 + if (width < 64 || height < 64) { + return false; + } + + // // 避免处理过大的图片，可能会导致性能问题 + // if (width > 2048 || height > 2048) { + // return false; + // } + + // 处理所有类型的位图，包括灰度图，因为墨水屏只有16色阶 + Bitmap.Config config = bitmap.getConfig(); + + // 跳过一些可能有问题的格式 + if (config == Bitmap.Config.HARDWARE) { + XposedBridge.log("EinkDither: Skipping HARDWARE config bitmap"); + return false; + } + + return config == Bitmap.Config.ARGB_8888 || + config == Bitmap.Config.RGB_565 || + config == Bitmap.Config.ARGB_4444 || + config == Bitmap.Config.ALPHA_8 || + config == null; // 某些情况下config可能为null + } + + // Floyd–Steinberg 抖动算法 - 支持16色阶 + private Bitmap applyDithering(Bitmap src) { + if (src == null || src.isRecycled()) { + XposedBridge.log("EinkDither: Source bitmap is null or recycled"); + return src; + } + + try { + int w = src.getWidth(); + int h = src.getHeight(); + + if (w <= 0 || h <= 0) { + XposedBridge.log("EinkDither: Invalid bitmap dimensions: " + w + "x" + h); + return src; + } + + // 根据图片大小选择算法 + boolean useFastAlgorithm = (w * h > 500000); // 大于500k像素使用快速算法 + + // 检查位图是否可变，如果不可变则创建副本 + Bitmap workBitmap = src; + boolean needsCopy = !src.isMutable(); + + if (needsCopy) { + try { + // 使用copy方法而不是createBitmap避免触发hook + workBitmap = src.copy(Bitmap.Config.ARGB_8888, true); + if (workBitmap == null) { + XposedBridge.log("EinkDither: Failed to create mutable copy, trying alternative"); + // 尝试其他格式 + workBitmap = src.copy(Bitmap.Config.RGB_565, true); + if (workBitmap == null) { + XposedBridge.log("EinkDither: All copy attempts failed"); + return src; + } + } + } catch (Exception e) { + XposedBridge.log("EinkDither: Exception during copy: " + e.getMessage()); + return src; + } + } + + if (useFastAlgorithm) { + XposedBridge.log("EinkDither: Using fast ordered dithering for large image " + w + "x" + h); + return applyOrderedDithering(workBitmap); + } else { + XposedBridge.log("EinkDither: Using Floyd-Steinberg dithering for image " + w + "x" + h); + return applyFloydSteinbergDithering(workBitmap); + } + + } catch (OutOfMemoryError e) { + XposedBridge.log("EinkDither: Out of memory during dithering: " + e.getMessage()); + return src; + } catch (Throwable t) { + XposedBridge.log("EinkDither: Error in applyDithering: " + t.getMessage()); + return src; // 出错时返回原图 + } + } + + // 快速有序抖动算法 - 适合大图片 + private Bitmap applyOrderedDithering(Bitmap workBitmap) { + try { + int w = workBitmap.getWidth(); + int h = workBitmap.getHeight(); + + // 4x4 Bayer矩阵 + int[][] bayerMatrix = { + {0, 8, 2, 10}, + {12, 4, 14, 6}, + {3, 11, 1, 9}, + {15, 7, 13, 5} + }; + + for (int y = 0; y < h; y++) { + for (int x = 0; x < w; x++) { + try { + int pixel = workBitmap.getPixel(x, y); + int alpha = (pixel >> 24) & 0xff; + + if (alpha == 0) { + workBitmap.setPixel(x, y, 0x00000000); + continue; + } + + int r = (pixel >> 16) & 0xff; + int g = (pixel >> 8) & 0xff; + int b = pixel & 0xff; + + // 转换为灰度 + int gray = (r * 299 + g * 587 + b * 114) / 1000; + + // 应用有序抖动 + int threshold = bayerMatrix[y % 4][x % 4] * 17; // 17 = 255/15 + int quantized = quantizeTo16Levels(gray + threshold - 136); // 136 = 8*17，居中阈值 + + int finalColor = 0xFF000000 | (quantized << 16) | (quantized << 8) | quantized; + workBitmap.setPixel(x, y, finalColor); + + } catch (Exception e) { + // 继续处理其他像素 + } + } + } + + XposedBridge.log("EinkDither: Successfully applied ordered dithering"); + return workBitmap; + + } catch (Exception e) { + XposedBridge.log("EinkDither: Error in ordered dithering: " + e.getMessage()); + return workBitmap; + } + } + + // Floyd-Steinberg抖动算法 - 适合小图片，效果更好 + private Bitmap applyFloydSteinbergDithering(Bitmap workBitmap) { + try { + int w = workBitmap.getWidth(); + int h = workBitmap.getHeight(); + + // 转换为灰度并应用16色阶抖动 + int[][] gray = new int[h][w]; + + // 第一步：转换为灰度 + for (int y = 0; y < h; y++) { + for (int x = 0; x < w; x++) { + try { + int pixel = workBitmap.getPixel(x, y); + int alpha = (pixel >> 24) & 0xff; + int r = (pixel >> 16) & 0xff; + int g = (pixel >> 8) & 0xff; + int b = pixel & 0xff; + + // 如果是透明像素，保持透明 + if (alpha == 0) { + gray[y][x] = -1; // 标记为透明 + } else { + gray[y][x] = (r * 299 + g * 587 + b * 114) / 1000; + } + } catch (Exception e) { + gray[y][x] = 128; // 默认为中灰色 + } + } + } + + // 第二步：应用Floyd-Steinberg抖动到16色阶 + for (int y = 0; y < h; y++) { + for (int x = 0; x < w; x++) { + try { + if (gray[y][x] == -1) { + // 透明像素保持透明 + workBitmap.setPixel(x, y, 0x00000000); + continue; + } + + int oldPixel = gray[y][x]; + + // 量化到16个级别 + int newPixel = quantizeTo16Levels(oldPixel); + int error = oldPixel - newPixel; + + gray[y][x] = newPixel; + + // 分散误差到相邻像素 - 简化版本，只扩散到右边和下边 + if (x + 1 < w && gray[y][x + 1] != -1) { + gray[y][x + 1] = Math.max(0, Math.min(255, gray[y][x + 1] + error / 2)); + } + if (y + 1 < h && gray[y + 1][x] != -1) { + gray[y + 1][x] = Math.max(0, Math.min(255, gray[y + 1][x] + error / 2)); + } + + // 设置最终像素颜色 - 使用16色阶的灰度值 + int finalGray = gray[y][x]; + int finalColor = 0xFF000000 | (finalGray << 16) | (finalGray << 8) | finalGray; + workBitmap.setPixel(x, y, finalColor); + + } catch (Exception e) { + // 继续处理其他像素 + } + } + } + + XposedBridge.log("EinkDither: Successfully applied Floyd-Steinberg dithering"); + return workBitmap; + + } catch (Exception e) { + XposedBridge.log("EinkDither: Error in Floyd-Steinberg dithering: " + e.getMessage()); + return workBitmap; + } + } + + // 将灰度值量化到16个级别 + private int quantizeTo16Levels(int grayValue) { + // 确保值在有效范围内 + grayValue = Math.max(0, Math.min(255, grayValue)); + // 16个级别：0-15，对应灰度值 0, 17, 34, 51, 68, 85, 102, 119, 136, 153, 170, 187, 204, 221, 238, 255 + int level = Math.round(grayValue * 15.0f / 255.0f); + return level * 17; // 17 = 255/15，确保最大值是255 + } +} \ No newline at end of file diff --git a/app/src/main/java/moe/fuquan/einkdither/DitherUtils.java b/app/src/main/java/moe/fuquan/einkdither/DitherUtils.java new file mode 100644 index 0000000..c5e1312 --- /dev/null +++ b/app/src/main/java/moe/fuquan/einkdither/DitherUtils.java @@ -0,0 +1,24 @@ +package moe.fuquan.einkdither; + +import android.graphics.Bitmap; +import android.util.Log; +import de.robv.android.xposed.XposedBridge; + +public class DitherUtils { +// static { +// System.loadLibrary("einkdither"); +// } + + public static void load(String path) { + XposedBridge.log("library path: " + path); + try { + System.load(path); + XposedBridge.log("load Jni library"); + } catch (Throwable e) { + XposedBridge.log(e); + XposedBridge.log("load jni library have error "); + } + } + + public static native Bitmap applyDithering(Bitmap src); +} diff --git a/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml new file mode 100644 index 0000000..2b068d1 --- /dev/null +++ b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml @@ -0,0 +1,30 @@ + + + + + + + + + + + \ No newline at end of file diff --git a/app/src/main/res/drawable/ic_launcher_background.xml b/app/src/main/res/drawable/ic_launcher_background.xml new file mode 100644 index 0000000..07d5da9 --- /dev/null +++ b/app/src/main/res/drawable/ic_launcher_background.xml @@ -0,0 +1,170 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml new file mode 100644 index 0000000..6f3b755 --- /dev/null +++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml new file mode 100644 index 0000000..6f3b755 --- /dev/null +++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher.webp b/app/src/main/res/mipmap-hdpi/ic_launcher.webp new file mode 100644 index 0000000..c209e78 Binary files /dev/null and b/app/src/main/res/mipmap-hdpi/ic_launcher.webp differ diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp b/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp new file mode 100644 index 0000000..b2dfe3d Binary files /dev/null and b/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp differ diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher.webp b/app/src/main/res/mipmap-mdpi/ic_launcher.webp new file mode 100644 index 0000000..4f0f1d6 Binary files /dev/null and b/app/src/main/res/mipmap-mdpi/ic_launcher.webp differ diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp b/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp new file mode 100644 index 0000000..62b611d Binary files /dev/null and b/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp differ diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher.webp b/app/src/main/res/mipmap-xhdpi/ic_launcher.webp new file mode 100644 index 0000000..948a307 Binary files /dev/null and b/app/src/main/res/mipmap-xhdpi/ic_launcher.webp differ diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp new file mode 100644 index 0000000..1b9a695 Binary files /dev/null and b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp differ diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp b/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp new file mode 100644 index 0000000..28d4b77 Binary files /dev/null and b/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp differ diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp new file mode 100644 index 0000000..9287f50 Binary files /dev/null and b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp differ diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp new file mode 100644 index 0000000..aa7d642 Binary files /dev/null and b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp differ diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp new file mode 100644 index 0000000..9126ae3 Binary files /dev/null and b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp differ diff --git a/app/src/main/res/values-night/themes.xml b/app/src/main/res/values-night/themes.xml new file mode 100644 index 0000000..ec54b9d --- /dev/null +++ b/app/src/main/res/values-night/themes.xml @@ -0,0 +1,16 @@ + + + + \ No newline at end of file diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml new file mode 100644 index 0000000..f8c6127 --- /dev/null +++ b/app/src/main/res/values/colors.xml @@ -0,0 +1,10 @@ + + + #FFBB86FC + #FF6200EE + #FF3700B3 + #FF03DAC5 + #FF018786 + #FF000000 + #FFFFFFFF + \ No newline at end of file diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml new file mode 100644 index 0000000..041189b --- /dev/null +++ b/app/src/main/res/values/strings.xml @@ -0,0 +1,3 @@ + + EinkDither + \ No newline at end of file diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml new file mode 100644 index 0000000..96899a0 --- /dev/null +++ b/app/src/main/res/values/themes.xml @@ -0,0 +1,16 @@ + + + + \ No newline at end of file diff --git a/app/src/main/res/xml/backup_rules.xml b/app/src/main/res/xml/backup_rules.xml new file mode 100644 index 0000000..fa0f996 --- /dev/null +++ b/app/src/main/res/xml/backup_rules.xml @@ -0,0 +1,13 @@ + + + + \ No newline at end of file diff --git a/app/src/main/res/xml/data_extraction_rules.xml b/app/src/main/res/xml/data_extraction_rules.xml new file mode 100644 index 0000000..9ee9997 --- /dev/null +++ b/app/src/main/res/xml/data_extraction_rules.xml @@ -0,0 +1,19 @@ + + + + + + + \ No newline at end of file diff --git a/build.gradle.kts b/build.gradle.kts new file mode 100644 index 0000000..3756278 --- /dev/null +++ b/build.gradle.kts @@ -0,0 +1,4 @@ +// Top-level build file where you can add configuration options common to all sub-projects/modules. +plugins { + alias(libs.plugins.android.application) apply false +} \ No newline at end of file diff --git a/gradle.properties b/gradle.properties new file mode 100644 index 0000000..4387edc --- /dev/null +++ b/gradle.properties @@ -0,0 +1,21 @@ +# Project-wide Gradle settings. +# IDE (e.g. Android Studio) users: +# Gradle settings configured through the IDE *will override* +# any settings specified in this file. +# For more details on how to configure your build environment visit +# http://www.gradle.org/docs/current/userguide/build_environment.html +# Specifies the JVM arguments used for the daemon process. +# The setting is particularly useful for tweaking memory settings. +org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8 +# When configured, Gradle will run in incubating parallel mode. +# This option should only be used with decoupled projects. For more details, visit +# https://developer.android.com/r/tools/gradle-multi-project-decoupled-projects +# org.gradle.parallel=true +# AndroidX package structure to make it clearer which packages are bundled with the +# Android operating system, and which are packaged with your app's APK +# https://developer.android.com/topic/libraries/support-library/androidx-rn +android.useAndroidX=true +# Enables namespacing of each library's R class so that its R class includes only the +# resources declared in the library itself and none from the library's dependencies, +# thereby reducing the size of the R class for that library +android.nonTransitiveRClass=true \ No newline at end of file diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml new file mode 100644 index 0000000..e0aa96e --- /dev/null +++ b/gradle/libs.versions.toml @@ -0,0 +1,15 @@ +[versions] +agp = "8.6.0" +espressoCore = "3.6.1" +appcompat = "1.1.0" +material = "1.1.0" +xposed = "82" + +[libraries] +appcompat = { group = "androidx.appcompat", name = "appcompat", version.ref = "appcompat" } +material = { group = "com.google.android.material", name = "material", version.ref = "material" } +xposed = { group = "de.robv.android.xposed", name = "api", version.ref = "xposed" } + +[plugins] +android-application = { id = "com.android.application", version.ref = "agp" } + diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 0000000..e708b1c Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 0000000..3449de4 --- /dev/null +++ b/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,6 @@ +#Sat May 17 00:25:33 CST 2025 +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/gradlew b/gradlew new file mode 100644 index 0000000..4f906e0 --- /dev/null +++ b/gradlew @@ -0,0 +1,185 @@ +#!/usr/bin/env sh + +# +# Copyright 2015 the original author or authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# https://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +############################################################################## +## +## Gradle start up script for UN*X +## +############################################################################## + +# Attempt to set APP_HOME +# Resolve links: $0 may be a link +PRG="$0" +# Need this for relative symlinks. +while [ -h "$PRG" ] ; do + ls=`ls -ld "$PRG"` + link=`expr "$ls" : '.*-> \(.*\)$'` + if expr "$link" : '/.*' > /dev/null; then + PRG="$link" + else + PRG=`dirname "$PRG"`"/$link" + fi +done +SAVED="`pwd`" +cd "`dirname \"$PRG\"`/" >/dev/null +APP_HOME="`pwd -P`" +cd "$SAVED" >/dev/null + +APP_NAME="Gradle" +APP_BASE_NAME=`basename "$0"` + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD="maximum" + +warn () { + echo "$*" +} + +die () { + echo + echo "$*" + echo + exit 1 +} + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "`uname`" in + CYGWIN* ) + cygwin=true + ;; + Darwin* ) + darwin=true + ;; + MINGW* ) + msys=true + ;; + NONSTOP* ) + nonstop=true + ;; +esac + +CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar + + +# Determine the Java command to use to start the JVM. +if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD="$JAVA_HOME/jre/sh/java" + else + JAVACMD="$JAVA_HOME/bin/java" + fi + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD="java" + which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." +fi + +# Increase the maximum file descriptors if we can. +if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then + MAX_FD_LIMIT=`ulimit -H -n` + if [ $? -eq 0 ] ; then + if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then + MAX_FD="$MAX_FD_LIMIT" + fi + ulimit -n $MAX_FD + if [ $? -ne 0 ] ; then + warn "Could not set maximum file descriptor limit: $MAX_FD" + fi + else + warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" + fi +fi + +# For Darwin, add options to specify how the application appears in the dock +if $darwin; then + GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" +fi + +# For Cygwin or MSYS, switch paths to Windows format before running java +if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then + APP_HOME=`cygpath --path --mixed "$APP_HOME"` + CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` + + JAVACMD=`cygpath --unix "$JAVACMD"` + + # We build the pattern for arguments to be converted via cygpath + ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` + SEP="" + for dir in $ROOTDIRSRAW ; do + ROOTDIRS="$ROOTDIRS$SEP$dir" + SEP="|" + done + OURCYGPATTERN="(^($ROOTDIRS))" + # Add a user-defined pattern to the cygpath arguments + if [ "$GRADLE_CYGPATTERN" != "" ] ; then + OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" + fi + # Now convert the arguments - kludge to limit ourselves to /bin/sh + i=0 + for arg in "$@" ; do + CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` + CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option + + if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition + eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` + else + eval `echo args$i`="\"$arg\"" + fi + i=`expr $i + 1` + done + case $i in + 0) set -- ;; + 1) set -- "$args0" ;; + 2) set -- "$args0" "$args1" ;; + 3) set -- "$args0" "$args1" "$args2" ;; + 4) set -- "$args0" "$args1" "$args2" "$args3" ;; + 5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; + 6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; + 7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; + 8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; + 9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; + esac +fi + +# Escape application args +save () { + for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done + echo " " +} +APP_ARGS=`save "$@"` + +# Collect all arguments for the java command, following the shell quoting and substitution rules +eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" + +exec "$JAVACMD" "$@" diff --git a/gradlew.bat b/gradlew.bat new file mode 100644 index 0000000..107acd3 --- /dev/null +++ b/gradlew.bat @@ -0,0 +1,89 @@ +@rem +@rem Copyright 2015 the original author or authors. +@rem +@rem Licensed under the Apache License, Version 2.0 (the "License"); +@rem you may not use this file except in compliance with the License. +@rem You may obtain a copy of the License at +@rem +@rem https://www.apache.org/licenses/LICENSE-2.0 +@rem +@rem Unless required by applicable law or agreed to in writing, software +@rem distributed under the License is distributed on an "AS IS" BASIS, +@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@rem See the License for the specific language governing permissions and +@rem limitations under the License. +@rem + +@if "%DEBUG%" == "" @echo off +@rem ########################################################################## +@rem +@rem Gradle startup script for Windows +@rem +@rem ########################################################################## + +@rem Set local scope for the variables with windows NT shell +if "%OS%"=="Windows_NT" setlocal + +set DIRNAME=%~dp0 +if "%DIRNAME%" == "" set DIRNAME=. +set APP_BASE_NAME=%~n0 +set APP_HOME=%DIRNAME% + +@rem Resolve any "." and ".." in APP_HOME to make it shorter. +for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi + +@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" + +@rem Find java.exe +if defined JAVA_HOME goto findJavaFromJavaHome + +set JAVA_EXE=java.exe +%JAVA_EXE% -version >NUL 2>&1 +if "%ERRORLEVEL%" == "0" goto execute + +echo. +echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:findJavaFromJavaHome +set JAVA_HOME=%JAVA_HOME:"=% +set JAVA_EXE=%JAVA_HOME%/bin/java.exe + +if exist "%JAVA_EXE%" goto execute + +echo. +echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:execute +@rem Setup the command line + +set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar + + +@rem Execute Gradle +"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* + +:end +@rem End local scope for the variables with windows NT shell +if "%ERRORLEVEL%"=="0" goto mainEnd + +:fail +rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of +rem the _cmd.exe /c_ return code! +if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 +exit /b 1 + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/settings.gradle.kts b/settings.gradle.kts new file mode 100644 index 0000000..eda1826 --- /dev/null +++ b/settings.gradle.kts @@ -0,0 +1,24 @@ +pluginManagement { + repositories { + google { + content { + includeGroupByRegex("com\\.android.*") + includeGroupByRegex("com\\.google.*") + includeGroupByRegex("androidx.*") + } + } + mavenCentral() + gradlePluginPortal() + } +} +dependencyResolutionManagement { + repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS) + repositories { + google() + mavenCentral() + maven("https://api.xposed.info/") + } +} + +rootProject.name = "EinkDither" +include(":app")