save code

.gitignore

@@ -12,4 +12,5 @@
 /captures
 .externalNativeBuild
 .cxx
+.idea
 local.properties

CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.22.1)
 
-project("sample")
+project("face_sdk")
 
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
@@ -23,9 +23,13 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Android")
                 third_party/vma/include
         )
     
-        add_library(sample SHARED
+        add_library(face_sdk SHARED
                 app/src/main/cpp/main.cpp
                 app/src/main/cpp/AndroidOut.cpp
+                app/src/main/cpp/DebugLog.h
+                app/src/main/cpp/DebugLog.cpp
+                app/src/main/cpp/CrashHandler.h
+                app/src/main/cpp/CrashHandler.cpp
                 vulkan/AppBase.h
                 vulkan/AppBase.cpp
                 vulkan/Application.h
@@ -45,13 +49,16 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Android")
 
         find_package(Vulkan REQUIRED)
 
-        target_link_libraries(sample
+        target_link_libraries(face_sdk
                 game-activity::game-activity_static
                 Vulkan::Vulkan
                 android
-                log)
+                log
+                # dl: needed by CrashHandler::dumpFrame -> dladdr() to map a
+                # PC back to "module + symbol + offset" in the crash log.
+                dl)
 
-        target_compile_definitions(sample PRIVATE
+        target_compile_definitions(face_sdk PRIVATE
                 VMA_STATIC_VULKAN_FUNCTIONS=0
                 VMA_DYNAMIC_VULKAN_FUNCTIONS=1
         )
@@ -82,7 +89,7 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Windows" OR WIN32)
         )
 
         # 将源代码添加到此项目的可执行文件。
-        add_executable (sample
+        add_executable (face_sdk
                 vulkan/AppBase.h
                 vulkan/AppBase.cpp
                 vulkan/Application.h
@@ -97,7 +104,7 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Windows" OR WIN32)
 endif()
 
 
-# target_compile_definitions(sample PRIVATE VK_NO_PROTOTYPES)  使用volk 动态加载的时候需要定义，不自动生成vulkan接口
-target_compile_definitions(sample PRIVATE GLM_ENABLE_EXPERIMENTAL)
-# target_compile_definitions(sample PRIVATE VULKAN_HPP_NO_STRUCT_CONSTRUCTORS) 解决vs 编译c++ 20 不支持新构造函数的特性
+# target_compile_definitions(face_sdk PRIVATE VK_NO_PROTOTYPES)  使用volk 动态加载的时候需要定义，不自动生成vulkan接口
+target_compile_definitions(face_sdk PRIVATE GLM_ENABLE_EXPERIMENTAL)
+# target_compile_definitions(face_sdk PRIVATE VULKAN_HPP_NO_STRUCT_CONSTRUCTORS) 解决vs 编译c++ 20 不支持新构造函数的特性
  

DEBUG_GUIDE.md

@@ -0,0 +1,191 @@
+# Face SDK 崩溃调试指南
+
+本文档说明如何配合 AI 定位 `libface_sdk.so` 里的崩溃 / 异常。核心思路：**把 Vulkan 每一次异常的上下文写进一个持久日志文件里，崩溃或画面卡住后把这份文件发给 AI 分析。**
+
+---
+
+## 一、已经加好的东西（不需要你做什么）
+
+### 1. `DebugLog` 模块（`app/src/main/cpp/DebugLog.{h,cpp}`）
+
+- 线程安全；
+- 每条日志带**时间戳 + 线程 ID（tid）**；
+- 写到 App **私有目录下的文件** —— 不会被 logcat 自动清掉；
+- 每写一行 `fflush`，进程挂了也不丢最后几行；
+- 文件大小超过 2MB 自动滚动到 `.old`；
+- 同步把日志镜像到 logcat，tag 是 `FACE_DBG`。
+
+### 2. 打点位置
+
+| 位置 | 打点内容 | 用途 |
+|---|---|---|
+| `android_main` 启动 | pid、tid、日志文件绝对路径 | 每次启动一条，作为分段锚点 |
+| 渲染循环心跳 | 每 600 帧一条：`frame=X exceptions_so_far=Y` | 判断启动多久后崩溃 / 异常持续性 |
+| `try/catch` 兜底 | 首 10 次异常每次都打，之后每 120 次打一次 | **Vulkan 异常不会再让进程硬崩**，留住现场 |
+| `handle_cmd` | 每个 `APP_CMD_*` 事件（尤其 `INIT_WINDOW`/`TERM_WINDOW`/`CONFIG_CHANGED`） | 旋转 / 切后台 / 锁屏场景的时间线 |
+| `FaceApp::initVulkan` 入/出口 | 调用次数、`_applicationInited` / `_faceAppInited` / `_sceondInited` 状态 | 判断是否被多次重复调用 |
+| `processImageNative` / `passDataToNative` | 每 300 次调用打一条 tid | 验证"Java 两个回调在不同线程并发调 Vulkan"假设 |
+| `Application::drawFrame` 里的 4 次 Vulkan 调用 | 非 `VK_SUCCESS` 时打印数值 + 字符串名（例如 `-4 (VK_ERROR_DEVICE_LOST)`） | **最关键的证据** |
+
+### 3. 关键行为变化
+
+**⚠️ 现在 `drawFrame` 里 Vulkan 抛出的异常会被 `try/catch` 吃掉 —— App 不会再因为这类问题硬崩溃。**
+
+- 好处：你能继续跑、继续复现、日志一直在写；
+- 代价：出问题时表现从"崩溃"变成"**画面卡住 / 黑屏 / 不再更新**"。
+- 如果想暂时回到硬崩行为：把 `app/src/main/cpp/main.cpp` 里那段 `try { g_Application->drawFrame(...); } catch (...) { ... }` 改回直接 `g_Application->drawFrame(frameTime);` 即可。
+
+---
+
+## 二、怎么把日志文件取出来
+
+### 方式 A：`run-as`（推荐，不需要 root）
+
+```bash
+adb shell "run-as com.inewme.uvmirror cat files/face_sdk_debug.log" > face_sdk_debug.log
+adb shell "run-as com.inewme.uvmirror cat files/face_sdk_debug.log.old" > face_sdk_debug.log.old
+```
+
+> `.old` 只有文件滚动过一次才存在，没有可以忽略错误。
+
+### 方式 B：直接看 logcat（实时）
+
+```bash
+adb logcat -s FACE_DBG
+```
+
+和文件内容基本一致。跑较久的话还是文件更可靠。
+
+### 方式 C：从 App 里拿路径
+
+启动后 `FACE_DBG` 第一条日志长这样：
+
+```
+[10:12:03.041][tid=12345] android_main start, pid=23456 tid=12345, logPath=/data/user/0/com.inewme.uvmirror/files/face_sdk_debug.log
+```
+
+照这个路径走就对了。
+
+---
+
+## 三、你现在要做的事（B 方案：两种场景都复现一次）
+
+### 场景 1：旋转崩溃（已确认必现）
+
+1. 打开 App，等初始化完成（画面能看到人脸渲染）。
+2. **旋转一次屏幕**。
+3. 等 3~5 秒让日志写进去。
+4. 取 `face_sdk_debug.log`，**不要清文件**，继续场景 2。
+
+期望看到的关键行：
+```
+>> handle_cmd APP_CMD_TERM_WINDOW(...)
+>> handle_cmd APP_CMD_INIT_WINDOW(...)
+FaceApp::initVulkan enter, call#2 ...
+drawFrame[NNN] vkAcquireNextImageKHR -> ??? (...)
+!!! drawFrame std::exception (frame=NNN count=M): failed to ...
+```
+
+注意里面那个 `???` —— 这是整件事的核心证据。
+
+### 场景 2：长时间运行崩溃（之前那个 10 分钟左右的）
+
+**不要退出 App，接着跑**。现在即使旋转触发了异常，进程没死，我们希望看后续会不会再出另一种 VkResult：
+
+1. 尽量不操作（不切后台、不旋转、不锁屏，让 App 持续渲染）。
+2. 连续跑 **15~20 分钟**，观察是否复现之前的"无外部事件崩溃"。
+3. 复现后（或稳定 20 分钟未复现也行），再取一次 `face_sdk_debug.log`（这次会覆盖场景 1 的那份，所以务必**先把场景 1 的单独保存好**）。
+
+期望看到的关键行（如果真的是 DEVICE_LOST）：
+```
+drawFrame[NNN] vkQueueSubmit -> -4 (VK_ERROR_DEVICE_LOST) ...
+```
+或者某个 Vulkan 调用返回其他错误码。
+
+### 辅助信息（手边有就顺便记一下）
+
+| 项 | 为什么要 |
+|---|---|
+| 机型 + Android 版本 | GPU 驱动差异；Adreno / Mali / Xclipse 表现差别大 |
+| 复现时手机是不是很烫 | 排查 GPU 温控 / thermal throttling |
+| 旋转时是"横屏 → 竖屏"还是"竖屏 → 横屏" / 多次连续旋转？ | 某些机型一次 vs 多次触发行为不同 |
+| 10 分钟崩溃时 App 在做什么（有在切换 motion 吗？） | 帮助排除 `changeMotionList` 相关路径 |
+
+---
+
+## 四、发给 AI 的时候包含什么
+
+最小集：
+
+1. `face_sdk_debug.log`（场景 1 旋转那份）
+2. `face_sdk_debug.log`（场景 2 长跑那份）
+3. 如果文件很大，**完整发**比截断发强（AI 主要关心最后几千行）
+4. 一句话说明这份日志对应场景 1 还是场景 2，是否复现了
+
+不需要的：
+
+- logcat 完整 dump（体积太大且大多无关，除非 AI 主动问特定 tag）
+- 录屏
+- 源代码（AI 已经能看到仓库）
+
+---
+
+## 五、当前未解决的假设，等日志验证
+
+| 假设 | 对应 VkResult | 修法 |
+|---|---|---|
+| 旋转导致 surface 失效未处理 | `VK_ERROR_OUT_OF_DATE_KHR` (-1000001004) 或 `VK_ERROR_SURFACE_LOST_KHR` (-1000000000) 或 `VK_SUBOPTIMAL_KHR` (1000001003) | 实现 `APP_CMD_TERM_WINDOW` 销毁流程 + swapchain 重建 |
+| Java 多线程并发提交 graphicsQueue 导致 GPU 长时间后挂 | `VK_ERROR_DEVICE_LOST` (-4)，且 `processImageNative` / `passDataToNative` 日志里 tid 不同 | 给所有 `vkQueueSubmit`/`vkQueuePresentKHR` 加全局 queue mutex |
+| 驱动 bug / 温度导致 GPU hang | `VK_ERROR_DEVICE_LOST` (-4)，单线程也出 | 捕获并尝试重建 device，或上报给机型厂商 |
+| 资源累积泄漏 | `VK_ERROR_OUT_OF_DEVICE_MEMORY` (-2) 或 `VK_ERROR_TOO_MANY_OBJECTS` | 排查 `beginSingleTimeCommands`/`processWithVulkan` 路径 |
+
+---
+
+## 六、日志样例（便于你确认打印是否正常）
+
+正常启动应该看到：
+```
+========== DebugLog opened @ 2026-04-23 14:05:12 (pid=12345) ==========
+[14:05:12.019][tid=12345] android_main start, pid=12345 tid=12345, logPath=/data/user/0/com.inewme.uvmirror/files/face_sdk_debug.log
+[14:05:12.155][tid=12345] >> handle_cmd APP_CMD_START(10) tid=12345
+[14:05:12.155][tid=12345] << handle_cmd APP_CMD_START done
+[14:05:12.210][tid=12345] >> handle_cmd APP_CMD_INIT_WINDOW(1) tid=12345
+[14:05:12.210][tid=12345] handle_cmd APP_CMD_INIT_WINDOW: calling initVulkan()
+[14:05:12.210][tid=12345] FaceApp::initVulkan enter, call#1 _applicationInited=0 _faceAppInited=0 _secondfaceAppInited=0
+[14:05:13.420][tid=12345] FaceApp::initVulkan exit, call#1 _applicationInited=1 _faceAppInited=1 _secondfaceAppInited=1
+[14:05:13.420][tid=12345] handle_cmd APP_CMD_INIT_WINDOW: initVulkan() returned, isInited=1
+[14:05:13.421][tid=12345] << handle_cmd APP_CMD_INIT_WINDOW done
+[14:05:14.005][tid=67890] processImageNative #1 tid=67890 w=480 h=480
+[14:05:14.008][tid=67891] passDataToNative #1 tid=67891 point_count=468 w=480 h=480
+[14:05:35.200][tid=12345] heartbeat: frame=600 exceptions_so_far=0
+```
+
+旋转时如果触发异常应该看到：
+```
+[14:06:10.112][tid=12345] >> handle_cmd APP_CMD_CONFIG_CHANGED(8) tid=12345
+[14:06:10.113][tid=12345] >> handle_cmd APP_CMD_TERM_WINDOW(2) tid=12345
+[14:06:10.113][tid=12345] handle_cmd APP_CMD_TERM_WINDOW: (no handler yet, ...)
+[14:06:10.113][tid=12345] << handle_cmd APP_CMD_TERM_WINDOW done
+[14:06:10.250][tid=12345] >> handle_cmd APP_CMD_INIT_WINDOW(1) tid=12345
+[14:06:10.250][tid=12345] FaceApp::initVulkan enter, call#2 _applicationInited=1 _faceAppInited=1 _secondfaceAppInited=0
+[14:06:10.250][tid=12345] FaceApp::initVulkan exit, call#2 _applicationInited=1 _faceAppInited=1 _secondfaceAppInited=1
+[14:06:10.280][tid=12345] drawFrame[1234] vkAcquireNextImageKHR -> -1000001004 (VK_ERROR_OUT_OF_DATE_KHR) currentFrame=0
+[14:06:10.280][tid=12345] !!! drawFrame std::exception (frame=1234 count=1): failed to acquire swap chain image!
+```
+
+**只要日志里能看到 `vkXxxKHR -> <数值> (<名字>)` 这一行，诊断就成立了。**
+
+---
+
+## 七、文件清单（仅供参考，日常不用动）
+
+```
+app/src/main/cpp/
+  DebugLog.h        新增
+  DebugLog.cpp      新增
+  main.cpp          改：日志初始化 / 心跳 / try-catch / cmd 日志 / JNI tid
+vulkan/
+  Application.cpp   改：drawFrame 4 处 VkResult 日志 + VkResultStr
+  FaceApp.cpp       改：initVulkan 入/出口日志
+CMakeLists.txt      改：加入 DebugLog.cpp 到 Android 构建
+```

README.md

@@ -0,0 +1,289 @@
+# Face SDK 使用说明
+
+基于 Vulkan + MediaPipe FaceLandmarker 的实时人脸贴图渲染 SDK，主要面向**美妆 / AR 试妆**场景：摄像头预览 → 人脸 landmark 检测 → 多帧 PNG 贴图按 motion 序列贴在人脸上。
+
+支持任意分辨率手机（采用"短边正方形画布 + 长边 letterbox"布局）、前置 / 后置摄像头自动切换、镜子镜像效果。
+
+---
+
+## 目录结构
+
+```
+face_sdk/
+├── app/                      ← SDK 主体（可作为 AAR 给业务方接入）
+│   ├── src/main/java/com/hmwl/face_sdk/
+│   │   ├── FaceActivity.java       ← 业务方继承的核心 Activity
+│   │   ├── FaceLandmarkerHelper.kt ← MediaPipe 封装
+│   │   ├── DebugLog.java           ← Java/C++ 统一日志（写文件）
+│   │   ├── InitArg.java / Motion.java / MotionList.java / Frame.java ← JSON 配置 POJO
+│   │   └── ...
+│   ├── src/main/cpp/main.cpp       ← JNI + native 主循环
+│   └── src/main/assets/shaders/    ← Vulkan GLSL（bg/texture/...）
+│
+├── vulkan/                   ← 跨平台 Vulkan 渲染核心
+│   ├── Application.{h,cpp}         ← Vulkan 初始化 / 窗口生命周期
+│   └── FaceApp.{h,cpp}             ← 业务渲染（face mesh + bg quad + motion 调度）
+│
+├── example/                  ← 示例 app，演示完整接入
+│   ├── src/main/java/com/inewme/uvmirror/
+│   │   ├── MainActivity.kt         ← 入口（Compose UI，前/后置选择）
+│   │   ├── MakeupActivity.kt       ← 业务 Activity（继承 FaceActivity）
+│   │   └── MotionManager.kt        ← motion 资源加载封装
+│   ├── src/main/AndroidManifest.xml
+│   └── src/main/assets/pic/
+│       ├── motion_data_ex.json     ← motion 元数据（帧文件名 + 锚点 x/y）
+│       └── <motion_id>/000xxx.png  ← motion 各帧贴图
+│
+├── compile_shader.bat        ← 编译所有 .vert/.frag 为 .spv（必须在改 shader 后执行）
+└── third_party/              ← VMA / glm / glfw / mediapipe …
+```
+
+---
+
+## 快速上手
+
+### 1. 编译 + 运行 example
+
+```powershell
+# Windows 上，确保 SDK 路径在 local.properties 里，以及 NDK 已安装
+.\gradlew.bat :example:installDebug
+```
+
+启动后：
+- 主界面有"前置摄像头 / 后置摄像头"两个 RadioButton（默认前置）
+- 点击 "Go to Makeup" 进入 `MakeupActivity`
+- `MakeupActivity` 自动加载 `assets/pic/motion_data_ex.json` 配置的 motion，按 `update()` 里的脚本播放
+
+### 2. 改 shader 后必须重编
+
+```powershell
+.\compile_shader.bat
+.\gradlew.bat :example:installDebug
+```
+
+---
+
+## 在自己的 App 里集成
+
+### Step 1：依赖 SDK 模块
+
+在你的 `settings.gradle` / `build.gradle` 引入 `:app` 模块（或打包成 AAR）。
+
+### Step 2：在 `AndroidManifest.xml` 声明业务 Activity
+
+业务 Activity 必须**竖屏**，且**屏蔽常见 configChanges 不要重建**：
+
+```xml
+<activity
+    android:name=".MakeupActivity"
+    android:exported="false"
+    android:screenOrientation="portrait"
+    android:configChanges="orientation|screenSize|screenLayout|keyboardHidden|keyboard|navigation|smallestScreenSize" />
+```
+
+### Step 3：继承 `FaceActivity` 写业务 Activity
+
+```kotlin
+class MakeupActivity : FaceActivity() {
+    lateinit var motionMgr: MotionManager
+    private var isMotionLoadFinished = false
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        // 在 super.onCreate 之前构造 MotionManager（它会调 SetInitArg）
+        motionMgr = MotionManager(
+            this,
+            /* fps      */ 10,
+            /* zoom     */ 1.5f,
+            /* r,g,b    */ 0f, 0f, 1f,        // letterbox / 圆外纯色（蓝）
+            /* radius   */ 240f,              // 480 设计基线下的圆半径，SDK 自动按 canvas_size/480 缩放
+            /* offset   */ 200f, -200f         // 480 设计基线下的中心偏移
+        )
+
+        super.onCreate(savedInstanceState)
+
+        // 一次性加载所有要用到的 motion，加载完才能 PlayMotionList
+        motionMgr.LoadMotionList(listOf("4", "56")) {
+            isMotionLoadFinished = true
+        }
+
+        // 自己的 update 循环（生命周期感知，避免泄漏）
+        lifecycleScope.launch {
+            while (true) {
+                update()
+                delay(10)
+            }
+        }
+    }
+
+    private fun update() {
+        if (!isMotionLoadFinished) return
+        // 想播什么就调，调 SDK API（详见下面"API 参考"）
+    }
+
+    override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
+        if (keyCode == KeyEvent.KEYCODE_BACK) {
+            Stop()      // ← 退出 Activity 前必须先 Stop()，否则 native 线程仍在跑
+            finish()
+            return true
+        }
+        return super.onKeyDown(keyCode, event)
+    }
+}
+```
+
+### Step 4：从入口 Activity 启动业务 Activity，传入摄像头朝向
+
+```kotlin
+import androidx.camera.core.CameraSelector
+import com.hmwl.face_sdk.FaceActivity
+
+val intent = Intent(context, MakeupActivity::class.java).apply {
+    // 前置：CameraSelector.LENS_FACING_FRONT；后置：LENS_FACING_BACK
+    // 不传时 SDK 默认走后置（向后兼容）
+    putExtra(FaceActivity.EXTRA_LENS_FACING, CameraSelector.LENS_FACING_FRONT)
+}
+context.startActivity(intent)
+```
+
+前置摄像头 SDK 会自动：
+- 在 GPU 端把 bg + face mesh 整体水平翻转 → 镜子效果
+- mediapipe 输入仍是 raw（未镜像）帧，所以 landmark 与 raw 帧 UV 严格对齐
+
+---
+
+## API 参考（`FaceActivity` 公开方法）
+
+| 方法 | 说明 |
+| --- | --- |
+| `static final String EXTRA_LENS_FACING` | Intent extra key，值为 `CameraSelector.LENS_FACING_FRONT` 或 `LENS_FACING_BACK` |
+| `void SetInitArg(String json)` | 设置全局参数（zoom / r,g,b / radius / offset_x,offset_y / action_fps），JSON 格式见 `InitArg` |
+| `String PreLoadAction(String json, LoadMotionListFinishedCallback cb)` | 异步预加载一组 motion 资源；加载完毕回调 cb |
+| `void PlayMotionList(List<String> motionList, boolean loop, PlayMotionListFinishedCallback cb)` | 播放 motion 序列，`loop=true` 时无限循环，`cb` 为播完一轮的回调（loop 模式下不会触发，传 `null` 即可） |
+| `void StopMotion()` | 暂停当前 motion 播放（停在当前帧） |
+| `void ResumeMotion()` | 恢复 `StopMotion()` 之前的播放进度 |
+| `void Stop()` | **完全停止 native 渲染**，退出 Activity 前必须调 |
+
+**注意：** `LoadMotionList` / `PreLoadAction` 是异步的，回调里设置 `isMotionLoadFinished=true` 之后才能 `PlayMotionList`，否则播放命令会被静默丢弃。
+
+---
+
+## 资源准备
+
+### Motion 帧图
+
+每个 motion 用一个独立目录，PNG 帧按文件名顺序播放：
+
+```
+assets/pic/4/000000.png
+assets/pic/4/000001.png
+...
+assets/pic/4/000031.png
+```
+
+PNG 必须是 **RGBA**（透明通道），SDK 直接采样后 alpha-blend 到 bg 上方。
+
+### `motion_data_ex.json`
+
+motion 元数据，描述每帧贴图的**锚点偏移**（贴在脸上的相对位置，画布坐标系，原点在屏幕中心）：
+
+```json
+{
+  "4": {
+    "000000.png": { "x": 0.0, "y": 0.0 },
+    "000001.png": { "x": 0.0, "y": 0.0 },
+    ...
+  },
+  "56": {
+    "000000.png": { "x": 0.0, "y": 0.0 },
+    ...
+  }
+}
+```
+
+---
+
+## 设计要点（接入方可不读，但要改 shader / 渲染时必读）
+
+### 1. 画布与 letterbox
+
+- **画布**：屏幕短边的正方形，居中。屏幕长边方向自然 letterbox（上下或左右黑边）。
+- 画布坐标系（"画布 NDC"）∈ [-1, +1]²，原点在画布中心。
+- mediapipe FaceLandmarker 输出的归一化 landmark ∈ [0, 1]² 直接对应画布 NDC（经过 `*2-1`）。
+- 业务参数 `zoom / offset_x / offset_y / radius` 都是**屏幕物理像素**（SDK 端按 `canvas_size / 480` 自动缩放，业务方用 480 设计基线即可）。
+
+### 2. 摄像头帧 → 画布的几何流水线
+
+```
+raw 摄像头帧 (W×H, 4:3 典型)
+  └─① 中央裁切 min(W,H)×min(W,H) 正方形
+      └─② Matrix.postRotate(rotationDegrees) 顺时针旋转 → 正立 face crop
+          └─③ MediaPipe 输出 landmark ∈ [0,1]² ─────▶ 画布 NDC
+                                                         └─ shader 做反向变换贴回 raw 帧 UV (bg)
+                                                         └─ shader 直接当 face mesh 顶点 (face)
+```
+
+### 3. 镜子效果（前置摄像头）
+
+`PushConstants.mirror_x ∈ {0.0, 1.0}`：
+- 前置时 = 1.0，shader 里把最终 NDC.x 翻转 (`pos.x *= 1.0 - 2.0*mirror_x`)
+- bg + face mesh 都做同样翻转 → 整体水平镜像，对齐保持
+- mediapipe 仍接收**未镜像**的 raw 帧，避免双重镜像把 landmark 弄反
+
+### 4. bg 与 face mesh 对齐不变量
+
+bg 圆内显示摄像头视频，face mesh 把 motion png 贴到 landmark 位置——两者对齐依赖：
+
+> **屏幕同一像素位置，bg 显示的 raw UV = 把这个屏幕位置反算回 mediapipe landmark 坐标**
+
+实现方式：bg quad 与 face mesh **完全相同**地经过 `zoom × offset × letterbox × mirror` 几何链路；同时 bg 的 `outTexCoord` 基于"未变换的 quad 顶点 pos"算 raw UV——这样屏幕 fragment 反算的 pos 就等价于"对应 landmark 的画布 NDC"，UV 完美贴合。
+
+bg quad 顶点取 `±10`（而非 `±1`），保证任何 zoom/offset 下 quad 在屏幕上 GPU clip 后整屏覆盖，letterbox 也被 bg.frag 的 r/g/b 蓝色填充。
+
+### 5. 摄像头分辨率适配
+
+- CameraX 用 `setTargetResolution(640, 480)` 强制拿低分辨率帧（SDK 不需要高分辨率）
+- shader 用 `camera_aspect = W/H` 和 `camera_rotation`（CameraX 给的 rotationDegrees）做 UV 反变换
+- 摄像头帧分辨率/朝向变化时，SDK 会在 `processCameraFrame` 里自动重建 bg 纹理
+
+### 6. 窗口生命周期
+
+- `APP_CMD_TERM_WINDOW` → `Application::cleanupForWindowLost()`：只销毁**窗口资源**（surface / swapchain / framebuffers / imageViews / commandBuffers / sync），保留 renderPass / pipelines / device / VMA / textures
+- `APP_CMD_INIT_WINDOW` → `Application::reinitForNewWindow()`：复用全局资源，只重建窗口资源
+- `android_main` 退出时**不再额外销毁** Vulkan 资源（保留给下次 NativeActivity 复用），避免 use-after-free 崩溃
+
+---
+
+## 调试
+
+### 日志文件
+
+SDK 把 Java/Kotlin 日志（通过 `com.hmwl.face_sdk.DebugLog.i / e`）和 C++ 日志（`DebugLog::log`）**统一写入**：
+
+```
+/data/user/0/<your.package>/files/face_sdk_debug.log
+```
+
+```powershell
+# 拉到本地分析
+adb pull /data/user/0/com.inewme.uvmirror.f20260113/files/face_sdk_debug.log .
+```
+
+崩溃时还会自动追加一段含信号、寄存器、backtrace 的 dump（`========== FACE_SDK CRASH ==========`）。
+
+### 常见问题
+
+| 现象 | 排查方向 |
+| --- | --- |
+| 黑屏 / 没有摄像头预览 | 检查相机权限是否授予；查看日志是否有 `processImageNative` 调用 |
+| 人脸贴图不出现 | 检查 `motion_data_ex.json` 里的 motion id 是否在 `LoadMotionList` 里加载过；检查 `isMotionLoadFinished` 是否被回调置 true |
+| 贴图不贴合人脸 | bg 与 face mesh 的 zoom/offset/mirror 必须严格一致——见"设计要点 #4 对齐不变量" |
+| 切换摄像头后崩溃 | 见 `cleanupSecondInit` 注释；不要在 Android 路径调用它，仅 desktop 入口可用 |
+| 改了 shader 不生效 | 必须先跑 `compile_shader.bat` 重新生成 `.spv` |
+
+---
+
+## 兼容性
+
+- minSdk 29，targetSdk 看 `app/build.gradle`
+- 设备需支持 Vulkan 1.0+ 和 MediaPipe TFLite delegate
+- 已在 MI 9（Android 10、Adreno 640、Vulkan vendor `qglinternal`）上验证通过

app/build.gradle

@@ -1,19 +1,20 @@
 plugins {
-    alias(libs.plugins.android.application)
-    id 'org.jetbrains.kotlin.android'
+    //alias(libs.plugins.android.application)
+    alias(libs.plugins.android.library)
+    alias(libs.plugins.kotlin.android)
+    //id 'org.jetbrains.kotlin.android'
 }
 
 ext.vvl_version='1.4.321.0'
 apply from: "./download_vvl.gradle"
 
 android {
-    namespace 'com.hmwl.sample'
-    compileSdk 35
-
+    namespace 'com.hmwl.face_sdk'
+    compileSdk 36
     defaultConfig {
-        applicationId "com.hmwl.sample"
-        minSdk 30
-        targetSdk 35
+        //applicationId "com.hmwl.face_sdk"
+        minSdk 29
+        targetSdk 36
         versionCode 1
         versionName "1.0"
 
@@ -22,12 +23,25 @@ android {
         }
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+
+        consumerProguardFiles "consumer-rules.pro"
     }
 
     buildTypes {
         debug {
             debuggable true
             jniDebuggable true
+
+            externalNativeBuild {
+                cmake {
+                    arguments "-DCMAKE_BUILD_TYPE=Debug"
+                    cppFlags "-DDEBUG -O0 -g"
+                }
+            }
+
+            ndk {
+                debugSymbolLevel 'FULL'  // Debug 版本包含完整符号
+            }
         }
 
         release {
@@ -36,18 +50,54 @@ android {
         }
     }
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_21
-        targetCompatibility JavaVersion.VERSION_21
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
     }
+
+    // 添加 Kotlin 编译选项
+//    kotlinOptions {
+//        jvmTarget = '17'  // 与 Java 版本保持一致
+//    }
+
+//    kotlin {
+//        jvmToolchain(17)
+//    }
+
     buildFeatures {
         prefab true
     }
+
+
+    sourceSets {
+        main {
+            jniLibs.srcDirs += [
+                    'libs/tasks-vision/jni',
+                    'libs/tasks-core/jni'
+            ]
+            //java.srcDirs += [
+            //        'libs/tasks-vision/vision_classes',
+            //        'libs/tasks-core/core_classes'
+            //]
+            res.srcDirs += [
+                    'libs/tasks-vision/res',
+                    'libs/tasks-core/res'
+            ]
+        }
+    }
+
     externalNativeBuild {
         cmake {
             path file('../CMakeLists.txt')
             version '3.22.1'
         }
     }
+
+    packagingOptions {
+        pickFirst '**/*.jar'
+    }
+    kotlinOptions {
+        jvmTarget = '17'
+    }
 }
 
 dependencies {
@@ -55,13 +105,17 @@ dependencies {
     implementation libs.appcompat
     implementation libs.material
     implementation libs.games.activity
+    implementation libs.androidx.core.core.ktx
     testImplementation libs.junit
     androidTestImplementation libs.ext.junit
     androidTestImplementation libs.espresso.core
 
-    implementation files('libs/tasks-vision-0.10.26.aar')
-    implementation files('libs/tasks-core-0.10.26.aar')
 
+    implementation 'com.google.protobuf:protobuf-javalite:3.21.12'
+    implementation files('libs/tasks-vision.jar', 'libs/tasks-core.jar')
+
+    //implementation fileTree(dir: 'libs/tasks-vision', include: ['*.jar'])
+    //implementation fileTree(dir: 'libs/tasks-core', include: ['*.jar'])
 
     def camerax_version = '1.4.2'
     implementation "androidx.camera:camera-core:$camerax_version"

app/download_vvl.gradle

@@ -1,4 +1,5 @@
-apply plugin: 'com.android.application'
+//apply plugin: 'com.android.application'
+apply plugin: 'com.android.library'
 
 /*
  * Copyright (c) 2022-2024, The Android Open Source Project.

app/libs/tasks-core/AndroidManifest.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.mediapipe.tasks.core" >
+
+    <uses-sdk
+        android:minSdkVersion="24"
+        android:targetSdkVersion="34" />
+
+</manifest>

app/libs/tasks-core/R.txt

@@ -0,0 +1,255 @@
+int anim fragment_fast_out_extra_slow_in 0x00000000
+int animator fragment_close_enter 0x00000000
+int animator fragment_close_exit 0x00000000
+int animator fragment_fade_enter 0x00000000
+int animator fragment_fade_exit 0x00000000
+int animator fragment_open_enter 0x00000000
+int animator fragment_open_exit 0x00000000
+int attr alpha 0x00000000
+int attr coordinatorLayoutStyle 0x00000000
+int attr font 0x00000000
+int attr fontProviderAuthority 0x00000000
+int attr fontProviderCerts 0x00000000
+int attr fontProviderFetchStrategy 0x00000000
+int attr fontProviderFetchTimeout 0x00000000
+int attr fontProviderPackage 0x00000000
+int attr fontProviderQuery 0x00000000
+int attr fontStyle 0x00000000
+int attr fontVariationSettings 0x00000000
+int attr fontWeight 0x00000000
+int attr keylines 0x00000000
+int attr layout_anchor 0x00000000
+int attr layout_anchorGravity 0x00000000
+int attr layout_behavior 0x00000000
+int attr layout_dodgeInsetEdges 0x00000000
+int attr layout_insetEdge 0x00000000
+int attr layout_keyline 0x00000000
+int attr statusBarBackground 0x00000000
+int attr ttcIndex 0x00000000
+int color notification_action_color_filter 0x00000000
+int color notification_icon_bg_color 0x00000000
+int color notification_material_background_media_default_color 0x00000000
+int color primary_text_default_material_dark 0x00000000
+int color ripple_material_light 0x00000000
+int color secondary_text_default_material_dark 0x00000000
+int color secondary_text_default_material_light 0x00000000
+int dimen compat_button_inset_horizontal_material 0x00000000
+int dimen compat_button_inset_vertical_material 0x00000000
+int dimen compat_button_padding_horizontal_material 0x00000000
+int dimen compat_button_padding_vertical_material 0x00000000
+int dimen compat_control_corner_material 0x00000000
+int dimen compat_notification_large_icon_max_height 0x00000000
+int dimen compat_notification_large_icon_max_width 0x00000000
+int dimen notification_action_icon_size 0x00000000
+int dimen notification_action_text_size 0x00000000
+int dimen notification_big_circle_margin 0x00000000
+int dimen notification_content_margin_start 0x00000000
+int dimen notification_large_icon_height 0x00000000
+int dimen notification_large_icon_width 0x00000000
+int dimen notification_main_column_padding_top 0x00000000
+int dimen notification_media_narrow_margin 0x00000000
+int dimen notification_right_icon_size 0x00000000
+int dimen notification_right_side_padding_top 0x00000000
+int dimen notification_small_icon_background_padding 0x00000000
+int dimen notification_small_icon_size_as_large 0x00000000
+int dimen notification_subtext_size 0x00000000
+int dimen notification_top_pad 0x00000000
+int dimen notification_top_pad_large_text 0x00000000
+int dimen subtitle_corner_radius 0x00000000
+int dimen subtitle_outline_width 0x00000000
+int dimen subtitle_shadow_offset 0x00000000
+int dimen subtitle_shadow_radius 0x00000000
+int drawable notification_action_background 0x00000000
+int drawable notification_bg 0x00000000
+int drawable notification_bg_low 0x00000000
+int drawable notification_bg_low_normal 0x00000000
+int drawable notification_bg_low_pressed 0x00000000
+int drawable notification_bg_normal 0x00000000
+int drawable notification_bg_normal_pressed 0x00000000
+int drawable notification_icon_background 0x00000000
+int drawable notification_template_icon_bg 0x00000000
+int drawable notification_template_icon_low_bg 0x00000000
+int drawable notification_tile_bg 0x00000000
+int drawable notify_panel_notification_icon_bg 0x00000000
+int id accessibility_action_clickable_span 0x00000000
+int id accessibility_custom_action_0 0x00000000
+int id accessibility_custom_action_1 0x00000000
+int id accessibility_custom_action_10 0x00000000
+int id accessibility_custom_action_11 0x00000000
+int id accessibility_custom_action_12 0x00000000
+int id accessibility_custom_action_13 0x00000000
+int id accessibility_custom_action_14 0x00000000
+int id accessibility_custom_action_15 0x00000000
+int id accessibility_custom_action_16 0x00000000
+int id accessibility_custom_action_17 0x00000000
+int id accessibility_custom_action_18 0x00000000
+int id accessibility_custom_action_19 0x00000000
+int id accessibility_custom_action_2 0x00000000
+int id accessibility_custom_action_20 0x00000000
+int id accessibility_custom_action_21 0x00000000
+int id accessibility_custom_action_22 0x00000000
+int id accessibility_custom_action_23 0x00000000
+int id accessibility_custom_action_24 0x00000000
+int id accessibility_custom_action_25 0x00000000
+int id accessibility_custom_action_26 0x00000000
+int id accessibility_custom_action_27 0x00000000
+int id accessibility_custom_action_28 0x00000000
+int id accessibility_custom_action_29 0x00000000
+int id accessibility_custom_action_3 0x00000000
+int id accessibility_custom_action_30 0x00000000
+int id accessibility_custom_action_31 0x00000000
+int id accessibility_custom_action_4 0x00000000
+int id accessibility_custom_action_5 0x00000000
+int id accessibility_custom_action_6 0x00000000
+int id accessibility_custom_action_7 0x00000000
+int id accessibility_custom_action_8 0x00000000
+int id accessibility_custom_action_9 0x00000000
+int id action0 0x00000000
+int id action_container 0x00000000
+int id action_divider 0x00000000
+int id action_image 0x00000000
+int id action_text 0x00000000
+int id actions 0x00000000
+int id all 0x00000000
+int id async 0x00000000
+int id blocking 0x00000000
+int id bottom 0x00000000
+int id cancel_action 0x00000000
+int id center 0x00000000
+int id center_horizontal 0x00000000
+int id center_vertical 0x00000000
+int id chronometer 0x00000000
+int id clip_horizontal 0x00000000
+int id clip_vertical 0x00000000
+int id dialog_button 0x00000000
+int id end 0x00000000
+int id end_padder 0x00000000
+int id fill 0x00000000
+int id fill_horizontal 0x00000000
+int id fill_vertical 0x00000000
+int id forever 0x00000000
+int id fragment_container_view_tag 0x00000000
+int id icon 0x00000000
+int id icon_group 0x00000000
+int id info 0x00000000
+int id italic 0x00000000
+int id left 0x00000000
+int id line1 0x00000000
+int id line3 0x00000000
+int id media_actions 0x00000000
+int id none 0x00000000
+int id normal 0x00000000
+int id notification_background 0x00000000
+int id notification_main_column 0x00000000
+int id notification_main_column_container 0x00000000
+int id right 0x00000000
+int id right_icon 0x00000000
+int id right_side 0x00000000
+int id special_effects_controller_view_tag 0x00000000
+int id start 0x00000000
+int id status_bar_latest_event_content 0x00000000
+int id tag_accessibility_actions 0x00000000
+int id tag_accessibility_clickable_spans 0x00000000
+int id tag_accessibility_heading 0x00000000
+int id tag_accessibility_pane_title 0x00000000
+int id tag_screen_reader_focusable 0x00000000
+int id tag_transition_group 0x00000000
+int id tag_unhandled_key_event_manager 0x00000000
+int id tag_unhandled_key_listeners 0x00000000
+int id text 0x00000000
+int id text2 0x00000000
+int id time 0x00000000
+int id title 0x00000000
+int id top 0x00000000
+int id view_tree_lifecycle_owner 0x00000000
+int id view_tree_saved_state_registry_owner 0x00000000
+int id view_tree_view_model_store_owner 0x00000000
+int id visible_removing_fragment_view_tag 0x00000000
+int integer cancel_button_image_alpha 0x00000000
+int integer status_bar_notification_info_maxnum 0x00000000
+int layout custom_dialog 0x00000000
+int layout notification_action 0x00000000
+int layout notification_action_tombstone 0x00000000
+int layout notification_media_action 0x00000000
+int layout notification_media_cancel_action 0x00000000
+int layout notification_template_big_media 0x00000000
+int layout notification_template_big_media_custom 0x00000000
+int layout notification_template_big_media_narrow 0x00000000
+int layout notification_template_big_media_narrow_custom 0x00000000
+int layout notification_template_custom_big 0x00000000
+int layout notification_template_icon_group 0x00000000
+int layout notification_template_lines_media 0x00000000
+int layout notification_template_media 0x00000000
+int layout notification_template_media_custom 0x00000000
+int layout notification_template_part_chronometer 0x00000000
+int layout notification_template_part_time 0x00000000
+int string status_bar_notification_info_overflow 0x00000000
+int style TextAppearance_Compat_Notification 0x00000000
+int style TextAppearance_Compat_Notification_Info 0x00000000
+int style TextAppearance_Compat_Notification_Info_Media 0x00000000
+int style TextAppearance_Compat_Notification_Line2 0x00000000
+int style TextAppearance_Compat_Notification_Line2_Media 0x00000000
+int style TextAppearance_Compat_Notification_Media 0x00000000
+int style TextAppearance_Compat_Notification_Time 0x00000000
+int style TextAppearance_Compat_Notification_Time_Media 0x00000000
+int style TextAppearance_Compat_Notification_Title 0x00000000
+int style TextAppearance_Compat_Notification_Title_Media 0x00000000
+int style Widget_Compat_NotificationActionContainer 0x00000000
+int style Widget_Compat_NotificationActionText 0x00000000
+int style Widget_Support_CoordinatorLayout 0x00000000
+int[] styleable ColorStateListItem { 0x010101a5, 0x0101031f, 0x00000000 }
+int styleable ColorStateListItem_android_color 0
+int styleable ColorStateListItem_android_alpha 1
+int styleable ColorStateListItem_alpha 2
+int[] styleable CoordinatorLayout { 0x00000000, 0x00000000 }
+int styleable CoordinatorLayout_keylines 0
+int styleable CoordinatorLayout_statusBarBackground 1
+int[] styleable CoordinatorLayout_Layout { 0x010100b3, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000 }
+int styleable CoordinatorLayout_Layout_android_layout_gravity 0
+int styleable CoordinatorLayout_Layout_layout_anchor 1
+int styleable CoordinatorLayout_Layout_layout_anchorGravity 2
+int styleable CoordinatorLayout_Layout_layout_behavior 3
+int styleable CoordinatorLayout_Layout_layout_dodgeInsetEdges 4
+int styleable CoordinatorLayout_Layout_layout_insetEdge 5
+int styleable CoordinatorLayout_Layout_layout_keyline 6
+int[] styleable FontFamily { 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000 }
+int styleable FontFamily_fontProviderAuthority 0
+int styleable FontFamily_fontProviderCerts 1
+int styleable FontFamily_fontProviderFetchStrategy 2
+int styleable FontFamily_fontProviderFetchTimeout 3
+int styleable FontFamily_fontProviderPackage 4
+int styleable FontFamily_fontProviderQuery 5
+int[] styleable FontFamilyFont { 0x01010532, 0x01010533, 0x0101053f, 0x0101056f, 0x01010570, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000 }
+int styleable FontFamilyFont_android_font 0
+int styleable FontFamilyFont_android_fontWeight 1
+int styleable FontFamilyFont_android_fontStyle 2
+int styleable FontFamilyFont_android_ttcIndex 3
+int styleable FontFamilyFont_android_fontVariationSettings 4
+int styleable FontFamilyFont_font 5
+int styleable FontFamilyFont_fontStyle 6
+int styleable FontFamilyFont_fontVariationSettings 7
+int styleable FontFamilyFont_fontWeight 8
+int styleable FontFamilyFont_ttcIndex 9
+int[] styleable Fragment { 0x01010003, 0x010100d0, 0x010100d1 }
+int styleable Fragment_android_name 0
+int styleable Fragment_android_id 1
+int styleable Fragment_android_tag 2
+int[] styleable FragmentContainerView { 0x01010003, 0x010100d1 }
+int styleable FragmentContainerView_android_name 0
+int styleable FragmentContainerView_android_tag 1
+int[] styleable GradientColor { 0x0101019d, 0x0101019e, 0x010101a1, 0x010101a2, 0x010101a3, 0x010101a4, 0x01010201, 0x0101020b, 0x01010510, 0x01010511, 0x01010512, 0x01010513 }
+int styleable GradientColor_android_startColor 0
+int styleable GradientColor_android_endColor 1
+int styleable GradientColor_android_type 2
+int styleable GradientColor_android_centerX 3
+int styleable GradientColor_android_centerY 4
+int styleable GradientColor_android_gradientRadius 5
+int styleable GradientColor_android_tileMode 6
+int styleable GradientColor_android_centerColor 7
+int styleable GradientColor_android_startX 8
+int styleable GradientColor_android_startY 9
+int styleable GradientColor_android_endX 10
+int styleable GradientColor_android_endY 11
+int[] styleable GradientColorItem { 0x010101a5, 0x01010514 }
+int styleable GradientColorItem_android_color 0
+int styleable GradientColorItem_android_offset 1

app/libs/tasks-vision/AndroidManifest.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.mediapipe.tasks.vision" >
+
+    <uses-sdk
+        android:minSdkVersion="24"
+        android:targetSdkVersion="34" />
+
+</manifest>

app/libs/tasks-vision/R.txt

@@ -0,0 +1,255 @@
+int anim fragment_fast_out_extra_slow_in 0x00000000
+int animator fragment_close_enter 0x00000000
+int animator fragment_close_exit 0x00000000
+int animator fragment_fade_enter 0x00000000
+int animator fragment_fade_exit 0x00000000
+int animator fragment_open_enter 0x00000000
+int animator fragment_open_exit 0x00000000
+int attr alpha 0x00000000
+int attr coordinatorLayoutStyle 0x00000000
+int attr font 0x00000000
+int attr fontProviderAuthority 0x00000000
+int attr fontProviderCerts 0x00000000
+int attr fontProviderFetchStrategy 0x00000000
+int attr fontProviderFetchTimeout 0x00000000
+int attr fontProviderPackage 0x00000000
+int attr fontProviderQuery 0x00000000
+int attr fontStyle 0x00000000
+int attr fontVariationSettings 0x00000000
+int attr fontWeight 0x00000000
+int attr keylines 0x00000000
+int attr layout_anchor 0x00000000
+int attr layout_anchorGravity 0x00000000
+int attr layout_behavior 0x00000000
+int attr layout_dodgeInsetEdges 0x00000000
+int attr layout_insetEdge 0x00000000
+int attr layout_keyline 0x00000000
+int attr statusBarBackground 0x00000000
+int attr ttcIndex 0x00000000
+int color notification_action_color_filter 0x00000000
+int color notification_icon_bg_color 0x00000000
+int color notification_material_background_media_default_color 0x00000000
+int color primary_text_default_material_dark 0x00000000
+int color ripple_material_light 0x00000000
+int color secondary_text_default_material_dark 0x00000000
+int color secondary_text_default_material_light 0x00000000
+int dimen compat_button_inset_horizontal_material 0x00000000
+int dimen compat_button_inset_vertical_material 0x00000000
+int dimen compat_button_padding_horizontal_material 0x00000000
+int dimen compat_button_padding_vertical_material 0x00000000
+int dimen compat_control_corner_material 0x00000000
+int dimen compat_notification_large_icon_max_height 0x00000000
+int dimen compat_notification_large_icon_max_width 0x00000000
+int dimen notification_action_icon_size 0x00000000
+int dimen notification_action_text_size 0x00000000
+int dimen notification_big_circle_margin 0x00000000
+int dimen notification_content_margin_start 0x00000000
+int dimen notification_large_icon_height 0x00000000
+int dimen notification_large_icon_width 0x00000000
+int dimen notification_main_column_padding_top 0x00000000
+int dimen notification_media_narrow_margin 0x00000000
+int dimen notification_right_icon_size 0x00000000
+int dimen notification_right_side_padding_top 0x00000000
+int dimen notification_small_icon_background_padding 0x00000000
+int dimen notification_small_icon_size_as_large 0x00000000
+int dimen notification_subtext_size 0x00000000
+int dimen notification_top_pad 0x00000000
+int dimen notification_top_pad_large_text 0x00000000
+int dimen subtitle_corner_radius 0x00000000
+int dimen subtitle_outline_width 0x00000000
+int dimen subtitle_shadow_offset 0x00000000
+int dimen subtitle_shadow_radius 0x00000000
+int drawable notification_action_background 0x00000000
+int drawable notification_bg 0x00000000
+int drawable notification_bg_low 0x00000000
+int drawable notification_bg_low_normal 0x00000000
+int drawable notification_bg_low_pressed 0x00000000
+int drawable notification_bg_normal 0x00000000
+int drawable notification_bg_normal_pressed 0x00000000
+int drawable notification_icon_background 0x00000000
+int drawable notification_template_icon_bg 0x00000000
+int drawable notification_template_icon_low_bg 0x00000000
+int drawable notification_tile_bg 0x00000000
+int drawable notify_panel_notification_icon_bg 0x00000000
+int id accessibility_action_clickable_span 0x00000000
+int id accessibility_custom_action_0 0x00000000
+int id accessibility_custom_action_1 0x00000000
+int id accessibility_custom_action_10 0x00000000
+int id accessibility_custom_action_11 0x00000000
+int id accessibility_custom_action_12 0x00000000
+int id accessibility_custom_action_13 0x00000000
+int id accessibility_custom_action_14 0x00000000
+int id accessibility_custom_action_15 0x00000000
+int id accessibility_custom_action_16 0x00000000
+int id accessibility_custom_action_17 0x00000000
+int id accessibility_custom_action_18 0x00000000
+int id accessibility_custom_action_19 0x00000000
+int id accessibility_custom_action_2 0x00000000
+int id accessibility_custom_action_20 0x00000000
+int id accessibility_custom_action_21 0x00000000
+int id accessibility_custom_action_22 0x00000000
+int id accessibility_custom_action_23 0x00000000
+int id accessibility_custom_action_24 0x00000000
+int id accessibility_custom_action_25 0x00000000
+int id accessibility_custom_action_26 0x00000000
+int id accessibility_custom_action_27 0x00000000
+int id accessibility_custom_action_28 0x00000000
+int id accessibility_custom_action_29 0x00000000
+int id accessibility_custom_action_3 0x00000000
+int id accessibility_custom_action_30 0x00000000
+int id accessibility_custom_action_31 0x00000000
+int id accessibility_custom_action_4 0x00000000
+int id accessibility_custom_action_5 0x00000000
+int id accessibility_custom_action_6 0x00000000
+int id accessibility_custom_action_7 0x00000000
+int id accessibility_custom_action_8 0x00000000
+int id accessibility_custom_action_9 0x00000000
+int id action0 0x00000000
+int id action_container 0x00000000
+int id action_divider 0x00000000
+int id action_image 0x00000000
+int id action_text 0x00000000
+int id actions 0x00000000
+int id all 0x00000000
+int id async 0x00000000
+int id blocking 0x00000000
+int id bottom 0x00000000
+int id cancel_action 0x00000000
+int id center 0x00000000
+int id center_horizontal 0x00000000
+int id center_vertical 0x00000000
+int id chronometer 0x00000000
+int id clip_horizontal 0x00000000
+int id clip_vertical 0x00000000
+int id dialog_button 0x00000000
+int id end 0x00000000
+int id end_padder 0x00000000
+int id fill 0x00000000
+int id fill_horizontal 0x00000000
+int id fill_vertical 0x00000000
+int id forever 0x00000000
+int id fragment_container_view_tag 0x00000000
+int id icon 0x00000000
+int id icon_group 0x00000000
+int id info 0x00000000
+int id italic 0x00000000
+int id left 0x00000000
+int id line1 0x00000000
+int id line3 0x00000000
+int id media_actions 0x00000000
+int id none 0x00000000
+int id normal 0x00000000
+int id notification_background 0x00000000
+int id notification_main_column 0x00000000
+int id notification_main_column_container 0x00000000
+int id right 0x00000000
+int id right_icon 0x00000000
+int id right_side 0x00000000
+int id special_effects_controller_view_tag 0x00000000
+int id start 0x00000000
+int id status_bar_latest_event_content 0x00000000
+int id tag_accessibility_actions 0x00000000
+int id tag_accessibility_clickable_spans 0x00000000
+int id tag_accessibility_heading 0x00000000
+int id tag_accessibility_pane_title 0x00000000
+int id tag_screen_reader_focusable 0x00000000
+int id tag_transition_group 0x00000000
+int id tag_unhandled_key_event_manager 0x00000000
+int id tag_unhandled_key_listeners 0x00000000
+int id text 0x00000000
+int id text2 0x00000000
+int id time 0x00000000
+int id title 0x00000000
+int id top 0x00000000
+int id view_tree_lifecycle_owner 0x00000000
+int id view_tree_saved_state_registry_owner 0x00000000
+int id view_tree_view_model_store_owner 0x00000000
+int id visible_removing_fragment_view_tag 0x00000000
+int integer cancel_button_image_alpha 0x00000000
+int integer status_bar_notification_info_maxnum 0x00000000
+int layout custom_dialog 0x00000000
+int layout notification_action 0x00000000
+int layout notification_action_tombstone 0x00000000
+int layout notification_media_action 0x00000000
+int layout notification_media_cancel_action 0x00000000
+int layout notification_template_big_media 0x00000000
+int layout notification_template_big_media_custom 0x00000000
+int layout notification_template_big_media_narrow 0x00000000
+int layout notification_template_big_media_narrow_custom 0x00000000
+int layout notification_template_custom_big 0x00000000
+int layout notification_template_icon_group 0x00000000
+int layout notification_template_lines_media 0x00000000
+int layout notification_template_media 0x00000000
+int layout notification_template_media_custom 0x00000000
+int layout notification_template_part_chronometer 0x00000000
+int layout notification_template_part_time 0x00000000
+int string status_bar_notification_info_overflow 0x00000000
+int style TextAppearance_Compat_Notification 0x00000000
+int style TextAppearance_Compat_Notification_Info 0x00000000
+int style TextAppearance_Compat_Notification_Info_Media 0x00000000
+int style TextAppearance_Compat_Notification_Line2 0x00000000
+int style TextAppearance_Compat_Notification_Line2_Media 0x00000000
+int style TextAppearance_Compat_Notification_Media 0x00000000
+int style TextAppearance_Compat_Notification_Time 0x00000000
+int style TextAppearance_Compat_Notification_Time_Media 0x00000000
+int style TextAppearance_Compat_Notification_Title 0x00000000
+int style TextAppearance_Compat_Notification_Title_Media 0x00000000
+int style Widget_Compat_NotificationActionContainer 0x00000000
+int style Widget_Compat_NotificationActionText 0x00000000
+int style Widget_Support_CoordinatorLayout 0x00000000
+int[] styleable ColorStateListItem { 0x010101a5, 0x0101031f, 0x00000000 }
+int styleable ColorStateListItem_android_color 0
+int styleable ColorStateListItem_android_alpha 1
+int styleable ColorStateListItem_alpha 2
+int[] styleable CoordinatorLayout { 0x00000000, 0x00000000 }
+int styleable CoordinatorLayout_keylines 0
+int styleable CoordinatorLayout_statusBarBackground 1
+int[] styleable CoordinatorLayout_Layout { 0x010100b3, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000 }
+int styleable CoordinatorLayout_Layout_android_layout_gravity 0
+int styleable CoordinatorLayout_Layout_layout_anchor 1
+int styleable CoordinatorLayout_Layout_layout_anchorGravity 2
+int styleable CoordinatorLayout_Layout_layout_behavior 3
+int styleable CoordinatorLayout_Layout_layout_dodgeInsetEdges 4
+int styleable CoordinatorLayout_Layout_layout_insetEdge 5
+int styleable CoordinatorLayout_Layout_layout_keyline 6
+int[] styleable FontFamily { 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000 }
+int styleable FontFamily_fontProviderAuthority 0
+int styleable FontFamily_fontProviderCerts 1
+int styleable FontFamily_fontProviderFetchStrategy 2
+int styleable FontFamily_fontProviderFetchTimeout 3
+int styleable FontFamily_fontProviderPackage 4
+int styleable FontFamily_fontProviderQuery 5
+int[] styleable FontFamilyFont { 0x01010532, 0x01010533, 0x0101053f, 0x0101056f, 0x01010570, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000 }
+int styleable FontFamilyFont_android_font 0
+int styleable FontFamilyFont_android_fontWeight 1
+int styleable FontFamilyFont_android_fontStyle 2
+int styleable FontFamilyFont_android_ttcIndex 3
+int styleable FontFamilyFont_android_fontVariationSettings 4
+int styleable FontFamilyFont_font 5
+int styleable FontFamilyFont_fontStyle 6
+int styleable FontFamilyFont_fontVariationSettings 7
+int styleable FontFamilyFont_fontWeight 8
+int styleable FontFamilyFont_ttcIndex 9
+int[] styleable Fragment { 0x01010003, 0x010100d0, 0x010100d1 }
+int styleable Fragment_android_name 0
+int styleable Fragment_android_id 1
+int styleable Fragment_android_tag 2
+int[] styleable FragmentContainerView { 0x01010003, 0x010100d1 }
+int styleable FragmentContainerView_android_name 0
+int styleable FragmentContainerView_android_tag 1
+int[] styleable GradientColor { 0x0101019d, 0x0101019e, 0x010101a1, 0x010101a2, 0x010101a3, 0x010101a4, 0x01010201, 0x0101020b, 0x01010510, 0x01010511, 0x01010512, 0x01010513 }
+int styleable GradientColor_android_startColor 0
+int styleable GradientColor_android_endColor 1
+int styleable GradientColor_android_type 2
+int styleable GradientColor_android_centerX 3
+int styleable GradientColor_android_centerY 4
+int styleable GradientColor_android_gradientRadius 5
+int styleable GradientColor_android_tileMode 6
+int styleable GradientColor_android_centerColor 7
+int styleable GradientColor_android_startX 8
+int styleable GradientColor_android_startY 9
+int styleable GradientColor_android_endX 10
+int styleable GradientColor_android_endY 11
+int[] styleable GradientColorItem { 0x010101a5, 0x01010514 }
+int styleable GradientColorItem_android_color 0
+int styleable GradientColorItem_android_offset 1

app/src/androidTest/java/com/hmwl/sample/ExampleInstrumentedTest.java

@@ -1,26 +0,0 @@
-package com.hmwl.sample;
-
-import android.content.Context;
-
-import androidx.test.platform.app.InstrumentationRegistry;
-import androidx.test.ext.junit.runners.AndroidJUnit4;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-import static org.junit.Assert.*;
-
-/**
- * Instrumented test, which will execute on an Android device.
- *
- * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
- */
-@RunWith(AndroidJUnit4.class)
-public class ExampleInstrumentedTest {
-    @Test
-    public void useAppContext() {
-        // Context of the app under test.
-        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
-        assertEquals("com.hmwl.sample", appContext.getPackageName());
-    }
-}

app/src/main/AndroidManifest.xml

@@ -2,33 +2,34 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
-    <!-- Declare features -->
-    <uses-feature android:name="android.hardware.camera" />
+    <!-- 声明摄像头硬件特性 -->
+    <uses-feature
+        android:name="android.hardware.camera"
+        android:required="false" />
 
-    <!-- Declare permissions -->
+    <!-- 声明摄像头权限 -->
     <uses-permission android:name="android.permission.CAMERA" />
 
-    <application
-        android:allowBackup="true"
-        android:dataExtractionRules="@xml/data_extraction_rules"
-        android:fullBackupContent="@xml/backup_rules"
-        android:icon="@mipmap/ic_launcher"
-        android:label="@string/app_name"
-        android:roundIcon="@mipmap/ic_launcher_round"
-        android:supportsRtl="true"
-        android:theme="@style/Theme.Sample">
+    <application>
+        <!-- 声明 MainActivity -->
+        <!-- 作为库，exported 通常设为 false，除非明确需要外部应用启动 -->
         <activity
-            android:name=".MainActivity"
-            android:exported="true">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
+            android:name=".FaceActivity"
+            android:exported="true"
+            android:screenOrientation="portrait"
+            android:configChanges="orientation|screenSize|screenLayout|keyboardHidden|keyboard|navigation|smallestScreenSize"
+            tools:ignore="MissingClass,LockedOrientationActivity">
+            <!-- 锁定竖屏：SDK 渲染按"屏幕中央正方形画布 + 上下黑边 letterbox"
+                 的方式适配任意分辨率，目前只验证过竖屏。
+                 configChanges 全包：避免软键盘/导航栏变化触发 Activity 重建——SDK
+                 自己会通过 onWindowLost/onWindowInit 重建 swapchain，性能更好。 -->
 
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
+            <!-- 重要：移除 MAIN/LAUNCHER intent-filter -->
+            <!-- 让使用库的应用来决定哪个是主Activity -->
 
             <meta-data
                 android:name="android.app.lib_name"
-                android:value="sample" />
+                android:value="face_sdk" />
         </activity>
     </application>
 

app/src/main/assets/shaders/bg.frag

@@ -1,15 +1,46 @@
 #version 450
 
-// 输入变量（与顶点着色器输出对应）
 layout(location = 0) in vec2 inTexCoord;
-
-// 输出颜色
 layout(location = 0) out vec4 outColor;
 
-// 纹理采样器
 layout(binding = 0) uniform sampler2D texSampler;
 
+// ★ PushConstants 必须和 bg.vert / FaceApp.h 完全一致（包括我们没用到的
+//   字段 zoom/ux/uy/offset_x/offset_y，因为 push constant 是按 offset 取的，
+//   缺字段会导致后面 radius/screen_w/screen_h 落到错误偏移）。
+layout(push_constant) uniform PushConstants {
+    float zoom;
+    float r;
+    float g;
+    float b;
+    float radius;
+    float ux;
+    float uy;
+    float offset_x;
+    float offset_y;
+    float canvas_size;
+    float screen_w;
+    float screen_h;
+    // 相机帧元信息（fragment 不用，仅为对齐 push constant layout）
+    float camera_aspect;
+    float camera_rotation;
+    float mirror_x;
+} pc;
+
 void main() {
-    // 采样纹理
-    outColor = texture(texSampler, inTexCoord);
-}
+    // gl_FragCoord 是屏幕 framebuffer 里的像素坐标（左下原点）。圆形 mask 中心
+    // 锚定在屏幕真实中心 = (screen_w, screen_h)/2。这里不再用画布中心，因为
+    // letterbox 后画布中心和屏幕中心其实是同一个点（min 边居中），但用屏幕坐标
+    // 写法更直观也对 cover 模式更友好。
+    vec2 fragCoord = gl_FragCoord.xy;
+    vec2 center = vec2(pc.screen_w, pc.screen_h) * 0.5;
+    float dist = length(fragCoord - center);
+
+    if (dist > pc.radius) {
+        // 画布外（含 letterbox 黑边）+ 圆外区域统一用业务给的纯色覆盖。
+        // 业务一般给 r=g=0 / b=1 之类，与原版语义保持一致。
+        outColor = vec4(pc.r, pc.g, pc.b, 1.0);
+    } else {
+        outColor = texture(texSampler, inTexCoord);
+    }
+}

app/src/main/assets/shaders/bg.vert

@@ -1,58 +1,131 @@
 #version 450
 
-// 硬编码的顶点数据 - 4个顶点组成三角形带覆盖整个屏幕
-// const vec2 positions[6] = vec2[6](
-//     vec2( 1.0,  1.0),  // 右上 - 三角形1
-//     vec2(-1.0,  1.0),  // 左上 - 三角形1
-//     vec2(-1.0, -1.0),  // 左下 - 三角形1
-
-//     vec2(-1.0, -1.0),  // 左下 - 三角形2  
-//     vec2( 1.0, -1.0),  // 右下 - 三角形2
-//     vec2( 1.0,  1.0)   // 右上 - 三角形2
-// );
-
-const float offset = (640-480)/(480.0);
-
-
+// ★ bg quad 顶点放大到 ±10（而不是 ±1）的原因：
+//
+//   bg 与 face mesh 的对齐依赖一个关键不变量——
+//   "屏幕上同一像素位置，bg 显示的 raw UV = 把这个屏幕位置反算回 mediapipe
+//    landmark 坐标"。要保住这个不变量，bg quad 必须经过和 face mesh 完全相
+//   同的 zoom × offset × letterbox × mirror 链路 (见下方 gl_Position 计算)，
+//   而 outTexCoord 必须基于"未变换的 quad 顶点 pos"算 raw UV。这样屏幕 fragment
+//   反算出的 quad pos 就等价于"对应的 landmark NDC"，UV 完美对齐。
+//
+//   但是 zoom (>1) + 非零 offset + screen_h > screen_w 的 letterbox 会让 quad
+//   在屏幕上呈非对称分布——之前 quad 顶点 ±1 时实测在 zoom=1.5 offset=(450,-450)
+//   屏幕 1080×2340 下，quad 在 NDC.y 只覆盖 [-0.885, 0.500]，屏幕底部
+//   [0.500, 1.0] 大片 letterbox 没有被 bg 覆盖，露出 RenderPass 的 clearColor
+//   黑色——表现为"上面有蓝色填充，下面没有"。
+//
+//   解法：把 quad 顶点扩大到 ±10。GPU 会把超出 NDC [-1, 1] 的部分硬件 clip 掉，
+//   但 clip 之后留在屏幕内的 fragment 上，outTexCoord 是顶点的"线性插值"，**屏幕
+//   内 fragment 反算出的 pos 与 quad 顶点取值范围无关**——所以 face mesh 对齐
+//   完全不受影响。同时 ±10 在任何合理的 zoom/offset/letterbox 下都能保证 quad
+//   在屏幕上完全覆盖 [-1, 1]² 含 letterbox。
+//
+//   Worst-case 验证：zoom=1.5, offset=(450,-450), canvas=1080, screen=1080×2340，
+//     pos.y = -10 → screen_ndc.y = (-10*1.5 + (-450/1080)) * 1080/2340 = -7.12 ✓
+//     pos.y = +10 → screen_ndc.y = (+10*1.5 + (-450/1080)) * 1080/2340 = +6.73 ✓
+//   远超屏幕范围，clip 后保证整屏 letterbox 都被 bg.frag 的 r/g/b 蓝色覆盖。
 const vec2 positions[6] = vec2[6](
-    vec2( 1.0,  -1.0 -offset),  // 右下
-    vec2(1.0,  1.0 + offset),  // 右上 - 三角形1
-    vec2(-1.0, 1.0 + offset),  // 左上 - 三角形1
+    vec2( 10.0, -10.0),
+    vec2( 10.0,  10.0),
+    vec2(-10.0,  10.0),
 
-    vec2(-1.0, 1.0 + offset),  // 左上 - 三角形2  
-    vec2( -1.0, -1.0-offset),  // 左下 - 三角形2
-    vec2( 1.0,  -1.0-offset)   // 右下 - 三角形2
+    vec2(-10.0,  10.0),
+    vec2(-10.0, -10.0),
+    vec2( 10.0, -10.0)
 );
 
-
-
-const vec2 texCoords[6] = vec2[6](
-    vec2(1.0, 1.0),  // 右上
-    vec2(0.0, 1.0),  // 左上
-    vec2(0.0, 0.0),  // 左下
-    
-    vec2(0.0, 0.0),  // 左下
-    vec2(1.0, 0.0),  // 右下
-    vec2(1.0, 1.0)   // 右上
-);
-
-// 定义 Push Constant，只有一个 float
+// ★ PushConstants 必须和 C++ FaceApp.h 严格一致。前 9 个 float 是业务原始值
+//   （SDK 已按 canvas_size/480 缩放到屏幕物理像素），后 5 个 float 是当前帧
+//   的画布几何 + 相机帧元信息，由 FaceApp::render() 每帧写入。
 layout(push_constant) uniform PushConstants {
-    float myValue;
-} pushConstants;
+    float zoom;
+    float r;
+    float g;
+    float b;
+    float radius;
+    float ux;
+    float uy;
+    float offset_x;
+    float offset_y;
+    // 画布几何（每帧写入）
+    float canvas_size;
+    float screen_w;
+    float screen_h;
+    // 相机帧元信息（每次相机帧上传时写入）
+    float camera_aspect;     // raw width / height（典型 4:3 = 1.333…）
+    float camera_rotation;   // CameraX rotationDegrees: 0/90/180/270
+    // 镜子效果开关：1.0 = 前置摄像头，最终 NDC.x 翻转一次。
+    // 这与 FaceLandmarkerHelper 在前置时对 bitmap 做 postScale(-1,1) 的语义对偶：
+    //   ① mediapipe 输入是"用户视角"图像 → landmark 也是用户视角；
+    //   ② bg.vert 算出的 outTexCoord 还是 raw 帧 UV（旋转矩阵把 user 视角→raw）；
+    //   ③ 最后我们把 NDC.x 翻转，bg 在屏幕上呈现为水平镜像 = 镜子效果；
+    //   ④ texture.vert 同样翻转一次，face 贴图与 bg 完美对齐。
+    float mirror_x;
+} pc;
 
-
-// 输出变量
 layout(location = 0) out vec2 outTexCoord;
 
 void main() {
-    // 获取顶点位置
-    vec2 position = positions[gl_VertexIndex];
-    position = position * pushConstants.myValue;
-    
-    // 设置输出位置（Vulkan使用不同的坐标系）
-    gl_Position = vec4(position, 0.0, 1.0);
-    
-    // 输出纹理坐标
-    outTexCoord = texCoords[gl_VertexIndex];
-}
+    vec2 pos = positions[gl_VertexIndex];
+
+    // ===== outTexCoord：基于"未变换的 quad pos" 算 raw UV =====
+    //
+    // 重点：这里必须用未做 zoom/offset/letterbox/mirror 变换的原始 pos 来计算
+    // outTexCoord，而 gl_Position 在下面才做这些变换。这样：
+    //   - 屏幕 fragment X 处对应的 quad pos = (X 反过 mirror、letterbox、offset、zoom)
+    //   - face mesh 顶点的 mediapipe landmark 在屏幕上的位置 X' 经过相同链路
+    //   - 当 X = X' 时（face mesh 顶点重叠某个屏幕像素），fragment 反算的 pos
+    //     刚好等于 face landmark 的画布 NDC，bg 该 fragment 显示 landmark 对应
+    //     raw UV → 与 face mesh 完美贴合。
+    //
+    // 公式链：画布 NDC ─[逆时针 rotation]→ 中央方形 NDC ─[scale & shift]→ raw UV
+    //
+    // 关于旋转方向：
+    //   Android Matrix.postRotate(deg) 在 Bitmap canvas（y 朝下）里是「视觉顺时针」。
+    //   Vulkan NDC 也是 y 朝下。所以画布 NDC → 中央方形 NDC 是「视觉逆时针 rotation」。
+    //   GLSL column-major mat2(c, -s, s, c) 对应矩阵 [c, s; -s, c]。
+    //   验证 rotation=0 时矩阵 = identity ✓
+    //   验证 rotation=90 时矩阵 = [0, 1; -1, 0]，apply 到画布右上 (1,-1)：
+    //         (0*1 + 1*(-1), -1*1 + 0*(-1)) = (-1, -1) → 中央方形左上 ✓
+    //         物理：mediapipe 输入右上像素 = 中央方形顺时针 90° 后的右上 = 中央方形左上 ✓
+    float ang = radians(pc.camera_rotation);
+    float c   = cos(ang);
+    float s   = sin(ang);
+    mat2 R    = mat2(c, -s, s, c);  // 画布 NDC → 中央方形 NDC（视觉逆时针 rotation）
+    vec2 cm   = R * pos;
+
+    // 中央方形 NDC ∈ [-1, +1]² → raw 帧 UV。中央方形在 raw 帧 UV 上是中央
+    // min(W, H) x min(W, H) 的正方形，对应的 UV 半径：
+    //   raw 横向长（W >= H）：halfU = H/(2W) = 1/(2 * aspect)，halfV = 0.5
+    //   raw 纵向长（H >  W）：halfU = 0.5，halfV = W/(2H) = aspect/2
+    float halfU, halfV;
+    if (pc.camera_aspect >= 1.0) {
+        halfU = 0.5 / pc.camera_aspect;
+        halfV = 0.5;
+    } else {
+        halfU = 0.5;
+        halfV = 0.5 * pc.camera_aspect;
+    }
+    outTexCoord = vec2(0.5 + halfU * cm.x, 0.5 + halfV * cm.y);
+
+    // ===== gl_Position：业务 zoom/offset + letterbox + mirror，与 texture.vert 严格一致 =====
+    //
+    // pos 仍按 quad 顶点 ±10 参与位置计算，pc.offset_x / pc.offset_y 已是屏幕物理
+    // 像素（SDK 端做过 canvas_size/480 缩放），/canvas_size 后是画布 NDC 单位；
+    // 最后 *canvas_size/screen_{w,h} 把画布缩到屏幕中央正方形，长边方向自然
+    // letterbox。quad 顶点放大到 ±10 让 GPU clip 后整屏覆盖。
+    pos *= pc.zoom;
+    pos.x += pc.offset_x / pc.canvas_size;
+    pos.y += pc.offset_y / pc.canvas_size;
+    pos.x *= pc.canvas_size / pc.screen_w;
+    pos.y *= pc.canvas_size / pc.screen_h;
+
+    // 镜子效果：前置时 mirror_x=1.0，把 NDC.x 翻转一次。无分支：
+    //   后置：(1 - 2*0) = +1 → 不变；
+    //   前置：(1 - 2*1) = -1 → 水平翻转。
+    // texture.vert 也做同样翻转，bg + face 整体水平镜像，face 贴图与 bg 完美对齐。
+    pos.x *= (1.0 - 2.0 * pc.mirror_x);
+
+    gl_Position = vec4(pos, 0.0, 1.0);
+}

app/src/main/assets/shaders/texture.frag

@@ -1,26 +1,52 @@
-#version 450
+#version 450
 
 layout (binding = 1) uniform sampler2D samplerColor;
 
 layout (location = 0) in vec2 inUV;
 layout (location = 1) in vec3 inNormal;
 
+// ★ PushConstants 必须和 C++ FaceApp.h / texture.vert 严格一致。
+//   关键：原版这里只声明到 uy，缺了 offset_x 之后的字段，那时之所以没报错是因为
+//   fragment 没读到那些字段。本次重构 fragment 要读 screen_w/screen_h，所以必须
+//   把整个块声明完整，否则 layout offset 会错位。
+layout(push_constant) uniform PushConstants {
+    float zoom;
+    float r;
+    float g;
+    float b;
+    float radius;
+    float ux;
+    float uy;
+    float offset_x;
+    float offset_y;
+    float canvas_size;
+    float screen_w;
+    float screen_h;
+    // 相机帧元信息（fragment 不用，仅为对齐 push constant layout）
+    float camera_aspect;
+    float camera_rotation;
+    float mirror_x;
+} pc;
 
 layout (location = 0) out vec4 outFragColor;
 
 void main() 
 {
-	vec4 color = texture(samplerColor, inUV);
+    // gl_FragCoord 是屏幕 framebuffer 像素坐标。圆形 mask 中心锚定在屏幕真实中心，
+    // 跟随分辨率自动适配；不再写死 (240,240)。
+    vec2 fragCoord = gl_FragCoord.xy;
+    vec2 center = vec2(pc.screen_w, pc.screen_h) * 0.5;
+    float dist = length(fragCoord - center);
 
-	vec3 N = normalize(inNormal);
-
-	vec4 textureColor = color;
-	if (textureColor.a < 0.1) {
-        //textureColor = vec4(0.2, 0.2, 0.2, 0.5); 
-		discard;
+    if (dist > pc.radius) {
+        // 画布外（含 letterbox 黑边）+ 圆外区域用业务纯色覆盖，与 bg.frag 一致。
+        outFragColor = vec4(pc.r, pc.g, pc.b, 1.0);
+    } else {
+        // out.png 是 4096x2048 的 8x4 子图图集；ux/uy 选定当前 motion 帧子图，
+        // inUV 在子图内插值。这里和分辨率重构无关，保持原版逻辑不动。
+        vec2 pos = vec2(pc.ux / 4096.0, pc.uy / 2048.0);
+        vec2 uv = pos + vec2(inUV.x / 8.0, inUV.y / 4.0);
+        vec4 color = texture(samplerColor, uv);
+        outFragColor = color;
     }
-	
-	outFragColor = textureColor;
-
-//	outFragColor = vec4(1, 0, 0, 1);
-}
+}

app/src/main/assets/shaders/texture.vert

@@ -1,6 +1,5 @@
 #version 450
 
-
 layout (location = 0) in vec3 inPos;
 layout (location = 1) in vec2 inUV;
 layout (location = 2) in vec3 inNormal;
@@ -16,9 +15,31 @@ layout (binding = 0) uniform UBO
 layout (location = 0) out vec2 outUV;
 layout (location = 1) out vec3 outNormal;
 
+// ★ PushConstants 必须和 C++ FaceApp.h / bg.vert / bg.frag 严格一致。
+//   前 9 个 float 是业务原始值（已被 SDK 在 render() 里按 canvas_size/480 缩放成
+//   屏幕物理像素）；后 3 个 float 是当前帧画布几何，由 SDK 每帧写入。
 layout(push_constant) uniform PushConstants {
-    float myValue;
-} pushConstants;
+    float zoom;
+    float r;
+    float g;
+    float b;
+    float radius;
+    float ux;
+    float uy;
+    float offset_x;
+    float offset_y;
+    float canvas_size;
+    float screen_w;
+    float screen_h;
+    // 相机帧元信息：camera_aspect / camera_rotation 在 face 渲染中不用——face
+    // landmark 已经是"正立中央方形"的归一化坐标，mediapipe 端转过；保留只是
+    // 为了对齐 push constant layout。
+    float camera_aspect;
+    float camera_rotation;
+    // mirror_x：1.0 表示前置摄像头镜子效果——把最终 gl_Position.x 翻转一次。
+    // bg.vert 也做同样翻转，所以 bg 与 face 同步水平镜像、互相对齐。
+    float mirror_x;
+} pc;
 
 out gl_PerVertex 
 {
@@ -29,11 +50,33 @@ void main()
 {
 	outUV = inUV;
 
-	vec2 position = vec2(inPos.xy*2 -1);
-    position = position * pushConstants.myValue;
-    gl_Position = vec4(position, 0.5, 1.0);
+	// 模型顶点坐标 inPos.xy 来自 OBJ，已经是 [0,1]² 归一化范围。先映射到
+	// "画布 NDC ∈ [-1,+1]"。
+	vec2 position = vec2(inPos.xy * 2.0 - 1.0);
 
-    vec4 pos = ubo.model * vec4(inPos, 1.0);
+	// 画布坐标系：缩放 + 业务像素偏移。
+	// pc.offset_x / pc.offset_y 是屏幕物理像素（SDK 已做过 canvas_size/480 缩放），
+	// 除以 canvas_size 转成画布 NDC，跟原版 "/480" 在 480 屏上完全等价。
+	position = position * pc.zoom;
+	position.x = position.x + (pc.offset_x / pc.canvas_size);
+	position.y = position.y + (pc.offset_y / pc.canvas_size);
+
+	// 画布 NDC → 屏幕 NDC：屏幕长边方向乘以 canvas_size/screen_long < 1.0，
+	// 让模型只占据屏幕中央正方形画布区域，长边方向的画布外是 letterbox。
+	position.x = position.x * (pc.canvas_size / pc.screen_w);
+	position.y = position.y * (pc.canvas_size / pc.screen_h);
+
+	// 镜子效果：前置摄像头时 mirror_x=1.0，把 NDC.x 翻转一次。
+	//   后置：(1 - 2*0) = +1 → 不变
+	//   前置：(1 - 2*1) = -1 → 水平翻转
+	// 无分支写法，配合 bg.vert 同样的翻转，让 bg + face 整体镜像、保持对齐。
+	position.x *= (1.0 - 2.0 * pc.mirror_x);
+
+	gl_Position = vec4(position, 0.5, 1.0);
+
+	// 注意：ubo.projection / ubo.model 在当前管线里没有真正参与 gl_Position 的
+	// 计算（顶点位置已直接给出 NDC）。这里仍按原版保留 normal 的世界变换，避免
+	// 影响其它依赖 outNormal 的 fragment 逻辑（例如 thick 版本）。
+	vec4 pos = ubo.model * vec4(inPos, 1.0);
 	outNormal = mat3(inverse(transpose(ubo.model))) * inNormal;
-
 }

app/src/main/assets/shaders/texture_thick.frag

@@ -0,0 +1,56 @@
+#version 450
+
+layout (binding = 1) uniform sampler2D samplerColor;
+layout (binding = 2) uniform sampler2D samplerColor_ex;
+
+layout (location = 0) in vec2 inUV;
+layout (location = 1) in vec3 inNormal;
+
+
+layout (location = 0) out vec4 outFragColor;
+
+void main() 
+{
+	vec4 color = texture(samplerColor, inUV);
+	vec4 color_ex = texture(samplerColor_ex, inUV);
+
+	vec3 N = normalize(inNormal);
+
+    // 计算与 (0,0,1) 的点乘
+    float ndot = dot(N, vec3(0.0, 0.0, -1.0));
+
+	// 保证结果 >= 0
+    ndot = max(ndot, 0.0);
+    
+    // 重新映射ndot值，让中间2/3部分进行融合
+    // 当ndot在[0.166, 0.833]范围内时进行混合，两端保持不变
+    float blendFactor;
+    if (ndot < 0.0) {
+       blendFactor = 0.0; // 完全使用color_ex
+    } else if (ndot > 0.1) {
+       blendFactor = 1.0; // 完全使用color
+    } else {
+       // 在中间2/3部分进行平滑过渡
+       blendFactor = (ndot - 0.0) / (1 - 0);
+    }
+
+	// 使用smoothstep创建中间2/3的融合区域
+    // 参数说明：smoothstep(edge0, edge1, x)
+    // 当x < edge0时返回0，当x > edge1时返回1，在中间时平滑过渡
+    //float blendFactor = smoothstep(0.166, 0.833, ndot);
+    
+    
+    // vec4 blendedColor = mix(color_ex, color, ndot);
+
+	// outFragColor = blendedColor;
+
+    if (ndot < 0.3){
+        outFragColor = color_ex;
+    }
+    else
+    {
+        outFragColor = color;
+    }
+
+//	outFragColor = vec4(1, 0, 0, 1);
+}

app/src/main/cpp/CrashHandler.cpp

@@ -0,0 +1,512 @@
+// CrashHandler.cpp
+//
+// Async-signal-safe crash dumper for the face_sdk native library. The goal
+// is that the next time the app dies (e.g. another FORTIFY: pthread_mutex_lock
+// called on a destroyed mutex from inside the Vulkan driver) we don't only
+// have logcat — we also have a self-contained dump on the device's app data
+// directory that the user can pull off and send back, even after a reboot.
+//
+// Why we need this:
+//   - DebugLog only writes "happy path" events. The Vulkan crash happens
+//     synchronously inside vkQueueSubmit / vkFreeCommandBuffers — there is
+//     no DebugLog call near the crash site, so the file log just stops.
+//   - logcat survives across the crash (debuggerd dumps the backtrace there)
+//     but logcat is volatile: a couple of reboots, a logcat -c, or a long
+//     idle period and it's gone. We want a persistent file.
+//   - tombstones in /data/tombstones/ are root-only on consumer devices.
+//
+// Implementation notes:
+//   - Inside a signal handler we MUST stick to async-signal-safe APIs
+//     (man 7 signal-safety). That rules out fprintf / snprintf / malloc.
+//     We use write(), our own integer-to-string conversion, and a single
+//     pre-opened fd. dladdr() is technically not on the POSIX safe list but
+//     bionic's implementation only takes one rwlock and is widely used in
+//     other crash dumpers (breakpad, crashpad, libunwindstack). We accept
+//     that risk because the alternative is no symbol at all.
+//   - We use <unwind.h> (_Unwind_Backtrace) instead of execinfo.h because
+//     bionic doesn't ship execinfo.h on all NDK levels, and _Unwind_Backtrace
+//     is the same primitive Android's own tombstoned uses.
+//   - We re-raise the original signal with the default handler at the end so
+//     the OS still produces a tombstone / ANR record for vendors that
+//     read /data/tombstones/.
+
+#include "CrashHandler.h"
+
+#ifndef _WIN32
+
+#include <android/log.h>
+#include <dlfcn.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <signal.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <time.h>
+#include <unistd.h>
+#include <unwind.h>
+
+#include <atomic>
+
+namespace {
+
+// ---------- Globals (touched from the handler -> only POD/atomics) ---------
+
+constexpr size_t kCrashStackSize    = 64 * 1024; // sigaltstack
+constexpr size_t kMaxFrames         = 64;
+constexpr size_t kNoteCapacity      = 256;
+
+uint8_t            g_sigStack[kCrashStackSize];
+int                g_crashFd        = -1; // crash log fd (append, sync)
+int                g_debugFd        = -1; // optional: also dup write to debug log
+std::atomic<bool>  g_installed{false};
+std::atomic<bool>  g_handlingCrash{false};
+
+// Single writer of g_note: setNote() (uses memcpy under a tiny lock, but the
+// handler reads byte-by-byte so a torn read at most produces a truncated
+// note, never a deref of bad memory).
+char               g_note[kNoteCapacity] = {0};
+pthread_mutex_t    g_noteMtx = PTHREAD_MUTEX_INITIALIZER;
+
+const int          g_signals[]     = { SIGSEGV, SIGABRT, SIGBUS, SIGFPE, SIGILL, SIGSYS };
+constexpr size_t   kNumSignals     = sizeof(g_signals) / sizeof(g_signals[0]);
+
+// ----------------------- Async-signal-safe writers -------------------------
+
+// Write a NUL-terminated string. Drops the trailing NUL.
+void sigWrite(int fd, const char* s) {
+    if (fd < 0 || !s) return;
+    size_t n = 0;
+    while (s[n]) ++n;
+    if (n == 0) return;
+    // Loop until everything is written or we error out. Async-safe.
+    while (n > 0) {
+        ssize_t w = write(fd, s, n);
+        if (w <= 0) {
+            if (w < 0 && errno == EINTR) continue;
+            return;
+        }
+        s += w;
+        n -= (size_t)w;
+    }
+}
+
+// Write n bytes from buf. Used for the note (may contain anything).
+void sigWriteN(int fd, const char* buf, size_t n) {
+    if (fd < 0 || !buf) return;
+    while (n > 0) {
+        ssize_t w = write(fd, buf, n);
+        if (w <= 0) {
+            if (w < 0 && errno == EINTR) continue;
+            return;
+        }
+        buf += w;
+        n   -= (size_t)w;
+    }
+}
+
+// Write the same string to both the crash log and the debug log (if any).
+void sigDump(const char* s) {
+    sigWrite(g_crashFd, s);
+    sigWrite(g_debugFd, s);
+}
+
+// Convert an unsigned integer to its decimal representation. Returns the
+// number of characters written into buf (without a NUL).
+size_t u64ToDec(uint64_t v, char* buf, size_t cap) {
+    if (cap == 0) return 0;
+    char  tmp[32];
+    size_t i = 0;
+    if (v == 0) {
+        tmp[i++] = '0';
+    } else {
+        while (v && i < sizeof(tmp)) {
+            tmp[i++] = (char)('0' + (v % 10));
+            v /= 10;
+        }
+    }
+    size_t out = (i < cap) ? i : cap;
+    for (size_t k = 0; k < out; ++k) {
+        buf[k] = tmp[i - 1 - k];
+    }
+    return out;
+}
+
+// Convert an unsigned 64-bit value to a fixed-width 16-digit hex string.
+// Useful for PC values.
+size_t u64ToHex16(uint64_t v, char* buf, size_t cap) {
+    static const char digits[] = "0123456789abcdef";
+    if (cap < 16) return 0;
+    for (int i = 15; i >= 0; --i) {
+        buf[i] = digits[v & 0xF];
+        v >>= 4;
+    }
+    return 16;
+}
+
+// Write "<key>=<u64>\n".
+void sigWriteKV_u64(int fd, const char* key, uint64_t v) {
+    sigWrite(fd, key);
+    sigWrite(fd, "=");
+    char num[24];
+    size_t n = u64ToDec(v, num, sizeof(num));
+    sigWriteN(fd, num, n);
+    sigWrite(fd, "\n");
+}
+
+// Write "<key>=0x<hex>\n".
+void sigWriteKV_ptr(int fd, const char* key, uint64_t v) {
+    sigWrite(fd, key);
+    sigWrite(fd, "=0x");
+    char hx[16];
+    u64ToHex16(v, hx, sizeof(hx));
+    sigWriteN(fd, hx, 16);
+    sigWrite(fd, "\n");
+}
+
+// ------------------------- Signal name lookup ------------------------------
+
+const char* signalName(int signo) {
+    switch (signo) {
+        case SIGSEGV: return "SIGSEGV";
+        case SIGABRT: return "SIGABRT";
+        case SIGBUS:  return "SIGBUS";
+        case SIGFPE:  return "SIGFPE";
+        case SIGILL:  return "SIGILL";
+        case SIGSYS:  return "SIGSYS";
+        case SIGTRAP: return "SIGTRAP";
+        default:      return "SIG?";
+    }
+}
+
+// si_code to short string. Only the most common ones; everything else falls
+// back to the numeric value via sigWriteKV_u64.
+const char* siCodeName(int signo, int code) {
+    switch (signo) {
+        case SIGSEGV:
+            if (code == SEGV_MAPERR) return "SEGV_MAPERR";
+            if (code == SEGV_ACCERR) return "SEGV_ACCERR";
+            break;
+        case SIGBUS:
+            if (code == BUS_ADRALN)  return "BUS_ADRALN";
+            if (code == BUS_ADRERR)  return "BUS_ADRERR";
+            if (code == BUS_OBJERR)  return "BUS_OBJERR";
+            break;
+        case SIGFPE:
+            if (code == FPE_INTDIV)  return "FPE_INTDIV";
+            if (code == FPE_INTOVF)  return "FPE_INTOVF";
+            if (code == FPE_FLTDIV)  return "FPE_FLTDIV";
+            break;
+        case SIGILL:
+            if (code == ILL_ILLOPC)  return "ILL_ILLOPC";
+            if (code == ILL_ILLOPN)  return "ILL_ILLOPN";
+            break;
+        case SIGABRT:
+            if (code == SI_TKILL)    return "SI_TKILL";
+            if (code == SI_USER)     return "SI_USER";
+            break;
+    }
+    return "?";
+}
+
+// ------------------------- Backtrace via _Unwind_Backtrace -----------------
+
+struct UnwindCtx {
+    uintptr_t* frames;
+    size_t     count;
+    size_t     cap;
+};
+
+_Unwind_Reason_Code unwindCallback(_Unwind_Context* ctx, void* arg) {
+    UnwindCtx* uc = static_cast<UnwindCtx*>(arg);
+    if (uc->count >= uc->cap) return _URC_END_OF_STACK;
+
+    uintptr_t pc = _Unwind_GetIP(ctx);
+    if (pc) {
+        // Trim Thumb bit on 32-bit ARM. No-op on aarch64/x86_64.
+        pc &= ~(uintptr_t)1;
+        uc->frames[uc->count++] = pc;
+    }
+    return _URC_NO_REASON;
+}
+
+size_t captureBacktrace(uintptr_t* out, size_t cap) {
+    UnwindCtx uc{out, 0, cap};
+    _Unwind_Backtrace(&unwindCallback, &uc);
+    return uc.count;
+}
+
+// Dump one frame: "  #02  pc 000000000000abcd  /path/lib.so (Symbol+0x10)"
+void dumpFrame(int fd, size_t idx, uintptr_t pc) {
+    sigWrite(fd, "  #");
+    char num[8];
+    if (idx < 10) {
+        num[0] = '0';
+        num[1] = (char)('0' + idx);
+        sigWriteN(fd, num, 2);
+    } else {
+        size_t n = u64ToDec(idx, num, sizeof(num));
+        sigWriteN(fd, num, n);
+    }
+    sigWrite(fd, "  pc ");
+    char hx[16];
+    u64ToHex16((uint64_t)pc, hx, sizeof(hx));
+    sigWriteN(fd, hx, 16);
+
+    Dl_info info;
+    memset(&info, 0, sizeof(info));
+    if (dladdr(reinterpret_cast<void*>(pc), &info) && info.dli_fname) {
+        sigWrite(fd, "  ");
+        sigWrite(fd, info.dli_fname);
+
+        if (info.dli_sname) {
+            uintptr_t sym = reinterpret_cast<uintptr_t>(info.dli_saddr);
+            uintptr_t off = (sym && pc >= sym) ? (pc - sym) : 0;
+            sigWrite(fd, " (");
+            sigWrite(fd, info.dli_sname);
+            sigWrite(fd, "+0x");
+            char ohx[16];
+            u64ToHex16((uint64_t)off, ohx, sizeof(ohx));
+            sigWriteN(fd, ohx, 16);
+            sigWrite(fd, ")");
+        } else if (info.dli_fbase) {
+            uintptr_t base = reinterpret_cast<uintptr_t>(info.dli_fbase);
+            uintptr_t off  = (pc >= base) ? (pc - base) : 0;
+            sigWrite(fd, " (offset 0x");
+            char ohx[16];
+            u64ToHex16((uint64_t)off, ohx, sizeof(ohx));
+            sigWriteN(fd, ohx, 16);
+            sigWrite(fd, ")");
+        }
+    }
+    sigWrite(fd, "\n");
+}
+
+// ------------------------- Time + tid helpers ------------------------------
+
+// Builds "YYYY-MM-DD HH:MM:SS.mmm UTC" into the given buffer (no NUL).
+// Returns the number of bytes written. Async-signal-safe (no stdio, no
+// localtime_r tz lookups).
+size_t formatTimestamp(char* b, size_t cap) {
+    timespec ts{};
+    clock_gettime(CLOCK_REALTIME, &ts);
+    struct tm tm_info{};
+    time_t s = ts.tv_sec;
+    gmtime_r(&s, &tm_info);
+
+    size_t i = 0;
+    auto putUInt = [&](unsigned v, int width) {
+        char tmp[8];
+        size_t n = u64ToDec(v, tmp, sizeof(tmp));
+        while ((int)n < (size_t)width) {
+            if (i < cap) b[i++] = '0';
+            ++n;
+        }
+        for (size_t k = 0; k < n; ++k) {
+            if (i < cap) b[i++] = tmp[k];
+        }
+    };
+
+    putUInt((unsigned)(tm_info.tm_year + 1900), 4); if (i < cap) b[i++] = '-';
+    putUInt((unsigned)(tm_info.tm_mon + 1),     2); if (i < cap) b[i++] = '-';
+    putUInt((unsigned)(tm_info.tm_mday),        2); if (i < cap) b[i++] = ' ';
+    putUInt((unsigned)(tm_info.tm_hour),        2); if (i < cap) b[i++] = ':';
+    putUInt((unsigned)(tm_info.tm_min),         2); if (i < cap) b[i++] = ':';
+    putUInt((unsigned)(tm_info.tm_sec),         2); if (i < cap) b[i++] = '.';
+    putUInt((unsigned)(ts.tv_nsec / 1000000),   3);
+    static const char kSuffix[] = " UTC";
+    for (size_t k = 0; k < sizeof(kSuffix) - 1; ++k) {
+        if (i < cap) b[i++] = kSuffix[k];
+    }
+    return i;
+}
+
+pid_t currentTid() {
+    return static_cast<pid_t>(syscall(SYS_gettid));
+}
+
+// ------------------------- Signal handler ----------------------------------
+
+void crashHandler(int signo, siginfo_t* info, void* ucontext) {
+    (void)ucontext;
+
+    // Re-entry guard: if a second signal fires while we're dumping (e.g. our
+    // own dladdr trips a SIGSEGV) just chain to the default handler.
+    bool expected = false;
+    if (!g_handlingCrash.compare_exchange_strong(expected, true,
+                                                 std::memory_order_acq_rel)) {
+        // Already in handler -> default + bail.
+        signal(signo, SIG_DFL);
+        raise(signo);
+        return;
+    }
+
+    sigDump("\n========== FACE_SDK CRASH ==========\n");
+    sigDump("time=");
+    {
+        char tsbuf[48];
+        size_t tn = formatTimestamp(tsbuf, sizeof(tsbuf));
+        sigWriteN(g_crashFd, tsbuf, tn);
+        sigWriteN(g_debugFd, tsbuf, tn);
+    }
+    sigDump("\n");
+
+    sigDump("signal=");
+    sigDump(signalName(signo));
+    sigDump(" code=");
+    sigDump(siCodeName(signo, info ? info->si_code : 0));
+    sigDump("\n");
+
+    if (info) {
+        sigWriteKV_u64(g_crashFd, "si_signo", (uint64_t)info->si_signo);
+        sigWriteKV_u64(g_debugFd, "si_signo", (uint64_t)info->si_signo);
+        sigWriteKV_u64(g_crashFd, "si_code",  (uint64_t)info->si_code);
+        sigWriteKV_u64(g_debugFd, "si_code",  (uint64_t)info->si_code);
+        sigWriteKV_ptr(g_crashFd, "si_addr",  (uint64_t)(uintptr_t)info->si_addr);
+        sigWriteKV_ptr(g_debugFd, "si_addr",  (uint64_t)(uintptr_t)info->si_addr);
+    }
+    sigWriteKV_u64(g_crashFd, "pid", (uint64_t)getpid());
+    sigWriteKV_u64(g_debugFd, "pid", (uint64_t)getpid());
+    sigWriteKV_u64(g_crashFd, "tid", (uint64_t)currentTid());
+    sigWriteKV_u64(g_debugFd, "tid", (uint64_t)currentTid());
+
+    // Note (current frame index, current motion, ...).
+    sigDump("note=");
+    sigWriteN(g_crashFd, g_note, strnlen(g_note, kNoteCapacity));
+    sigWriteN(g_debugFd, g_note, strnlen(g_note, kNoteCapacity));
+    sigDump("\n");
+
+    sigDump("backtrace:\n");
+    uintptr_t frames[kMaxFrames];
+    size_t    nf = captureBacktrace(frames, kMaxFrames);
+    for (size_t i = 0; i < nf; ++i) {
+        dumpFrame(g_crashFd, i, frames[i]);
+        dumpFrame(g_debugFd, i, frames[i]);
+    }
+    sigDump("==================================\n");
+
+    // Make sure everything reaches disk before we self-destruct.
+    if (g_crashFd >= 0) fsync(g_crashFd);
+    if (g_debugFd >= 0) fsync(g_debugFd);
+
+    // Mirror to logcat too so a quick `adb logcat -d` after a reboot still
+    // shows the SIGNAL line (helps cross-checking the file).
+    __android_log_print(ANDROID_LOG_FATAL, "FACE_DBG_CRASH",
+                        "fatal %s @ tid=%d, see face_sdk_crash.log",
+                        signalName(signo), currentTid());
+
+    // Restore default handler and re-raise. This produces /data/tombstones/*
+    // on rooted devices and tells debuggerd to print the official Android
+    // backtrace into logcat (`crash_dump64 ... DEBUG`).
+    struct sigaction dfl{};
+    dfl.sa_handler = SIG_DFL;
+    sigemptyset(&dfl.sa_mask);
+    sigaction(signo, &dfl, nullptr);
+    raise(signo);
+}
+
+} // namespace
+
+namespace CrashHandler {
+
+void install(const std::string& internalDataPath,
+             const std::string& debugLogPath) {
+    bool expected = false;
+    if (!g_installed.compare_exchange_strong(expected, true,
+                                             std::memory_order_acq_rel)) {
+        return; // already installed
+    }
+
+    // Open the persistent crash log file in append mode. We keep it open
+    // forever so the signal handler doesn't have to call open() (which is
+    // safe but slow).
+    {
+        std::string path = internalDataPath.empty()
+                               ? std::string("/data/local/tmp/face_sdk_crash.log")
+                               : internalDataPath + "/face_sdk_crash.log";
+        g_crashFd = open(path.c_str(),
+                         O_WRONLY | O_CREAT | O_APPEND | O_CLOEXEC,
+                         0644);
+        if (g_crashFd >= 0) {
+            // Header for the new run.
+            sigWrite(g_crashFd, "\n=== CrashHandler installed pid=");
+            char pidbuf[16];
+            size_t n = u64ToDec((uint64_t)getpid(), pidbuf, sizeof(pidbuf));
+            sigWriteN(g_crashFd, pidbuf, n);
+            sigWrite(g_crashFd, " ===\n");
+            fsync(g_crashFd);
+            __android_log_print(ANDROID_LOG_INFO, "FACE_DBG",
+                                "CrashHandler log file: %s", path.c_str());
+        } else {
+            __android_log_print(ANDROID_LOG_WARN, "FACE_DBG",
+                                "CrashHandler failed to open %s: %s",
+                                path.c_str(), strerror(errno));
+        }
+    }
+
+    // Also keep a writable fd to the DebugLog file (if any) so dumps land
+    // next to the regular tail of the log. We don't touch g_fp inside
+    // DebugLog because that would need its mutex — not safe in handler.
+    if (!debugLogPath.empty()) {
+        g_debugFd = open(debugLogPath.c_str(),
+                         O_WRONLY | O_APPEND | O_CLOEXEC,
+                         0644);
+        if (g_debugFd < 0) {
+            __android_log_print(ANDROID_LOG_WARN, "FACE_DBG",
+                                "CrashHandler: cannot open debug log %s: %s",
+                                debugLogPath.c_str(), strerror(errno));
+        }
+    }
+
+    // Set up an alternate stack so we still have stack space if the original
+    // thread ran out (very common for Vulkan crashes inside deep driver
+    // call chains).
+    stack_t ss{};
+    ss.ss_sp    = g_sigStack;
+    ss.ss_size  = sizeof(g_sigStack);
+    ss.ss_flags = 0;
+    if (sigaltstack(&ss, nullptr) != 0) {
+        __android_log_print(ANDROID_LOG_WARN, "FACE_DBG",
+                            "CrashHandler: sigaltstack failed: %s",
+                            strerror(errno));
+    }
+
+    struct sigaction sa{};
+    sa.sa_sigaction = &crashHandler;
+    sa.sa_flags     = SA_SIGINFO | SA_ONSTACK | SA_RESTART;
+    sigemptyset(&sa.sa_mask);
+
+    for (size_t i = 0; i < kNumSignals; ++i) {
+        if (sigaction(g_signals[i], &sa, nullptr) != 0) {
+            __android_log_print(ANDROID_LOG_WARN, "FACE_DBG",
+                                "CrashHandler: sigaction(%d) failed: %s",
+                                g_signals[i], strerror(errno));
+        }
+    }
+
+    __android_log_print(ANDROID_LOG_INFO, "FACE_DBG",
+                        "CrashHandler installed for SIGSEGV/SIGABRT/SIGBUS/SIGFPE/SIGILL/SIGSYS");
+}
+
+void setNote(const char* note) {
+    if (!note) note = "";
+    pthread_mutex_lock(&g_noteMtx);
+    size_t n = strnlen(note, kNoteCapacity - 1);
+    memcpy(g_note, note, n);
+    g_note[n] = '\0';
+    pthread_mutex_unlock(&g_noteMtx);
+}
+
+} // namespace CrashHandler
+
+#else  // _WIN32 — no-op on host build
+
+namespace CrashHandler {
+void install(const std::string&, const std::string&) {}
+void setNote(const char*) {}
+} // namespace CrashHandler
+
+#endif

app/src/main/cpp/CrashHandler.h

@@ -0,0 +1,33 @@
+#ifndef FACE_SDK_CRASH_HANDLER_H
+#define FACE_SDK_CRASH_HANDLER_H
+
+#include <string>
+
+namespace CrashHandler {
+
+// Install signal handlers for SIGSEGV / SIGABRT / SIGBUS / SIGFPE / SIGILL.
+//
+// On a fatal signal we:
+//   1) Switch to a pre-allocated 64KB sigaltstack so we still have stack
+//      space even if the original thread's stack was the cause.
+//   2) Write a self-contained crash record to <internalDataPath>/face_sdk_crash.log
+//      (and also try to append it to the DebugLog file passed in).
+//      The record contains: signal name, si_code, si_addr, pid, tid,
+//      a synchronous unwound backtrace (PC + module + offset for each frame),
+//      and the value of any extra context the caller registered via setNote().
+//   3) Re-raise the original signal with the default handler so that the
+//      Android tombstone pipeline still produces /data/tombstones/* files.
+//
+// Safe to call once. Subsequent calls are no-ops. Must be called AFTER
+// DebugLog::init() so we know the log directory.
+void install(const std::string& internalDataPath,
+             const std::string& debugLogPath = "");
+
+// Optional short note (<= 256 chars) appended to every crash dump from now on.
+// Useful to record "current frame index", "current motion", etc. so we know
+// what was happening at the moment of the crash. Async-signal-safe to read.
+void setNote(const char* note);
+
+} // namespace CrashHandler
+
+#endif // FACE_SDK_CRASH_HANDLER_H

app/src/main/cpp/DebugLog.cpp

@@ -0,0 +1,165 @@
+#include "DebugLog.h"
+
+#include <android/log.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#include <cstdarg>
+#include <cstdio>
+#include <ctime>
+#include <cstring>
+#include <mutex>
+#include <string>
+#include <unordered_map>
+
+namespace {
+
+std::mutex  g_mtx;
+FILE*       g_fp = nullptr;
+std::string g_path;
+constexpr size_t kMaxSize = 2 * 1024 * 1024; // 2 MB before rotation
+
+// Throttle bookkeeping: one slot per distinct key passed to log_throttled().
+struct ThrottleSlot {
+    int64_t  last_emit_ms = 0; // when we last actually wrote a line for this key
+    uint32_t suppressed   = 0; // number of calls swallowed since last_emit_ms
+};
+std::unordered_map<std::string, ThrottleSlot> g_throttle;
+constexpr int64_t kThrottleWindowMs = 2000; // 2 seconds
+
+pid_t currentTid() {
+    return static_cast<pid_t>(syscall(SYS_gettid));
+}
+
+int64_t nowMs() {
+    timespec ts{};
+    clock_gettime(CLOCK_MONOTONIC, &ts);
+    return static_cast<int64_t>(ts.tv_sec) * 1000 + ts.tv_nsec / 1000000;
+}
+
+// Assumes g_mtx is held. Writes a single pre-formatted line to disk + logcat.
+void writeLineLocked(const char* body) {
+    pid_t tid = currentTid();
+
+    timespec ts{};
+    clock_gettime(CLOCK_REALTIME, &ts);
+    struct tm tm_info{};
+    localtime_r(&ts.tv_sec, &tm_info);
+    char timebuf[32];
+    strftime(timebuf, sizeof(timebuf), "%H:%M:%S", &tm_info);
+
+    if (g_fp) {
+        std::fprintf(g_fp, "[%s.%03ld][tid=%d] %s\n",
+                     timebuf, ts.tv_nsec / 1000000, tid, body);
+        std::fflush(g_fp);
+    }
+    __android_log_print(ANDROID_LOG_INFO, "FACE_DBG", "[tid=%d] %s", tid, body);
+}
+
+} // namespace
+
+namespace DebugLog {
+
+void init(const char* internalDataPath) {
+    std::lock_guard<std::mutex> lk(g_mtx);
+    if (g_fp) {
+        return; // already initialized
+    }
+
+    const char* base = (internalDataPath && *internalDataPath) ? internalDataPath : "/data/local/tmp";
+    g_path = std::string(base) + "/face_sdk_debug.log";
+
+    // Rotate once if current file is too large.
+    struct stat st{};
+    if (stat(g_path.c_str(), &st) == 0 && static_cast<size_t>(st.st_size) > kMaxSize) {
+        std::string backup = g_path + ".old";
+        std::remove(backup.c_str());
+        std::rename(g_path.c_str(), backup.c_str());
+    }
+
+    g_fp = std::fopen(g_path.c_str(), "a");
+    if (g_fp) {
+        time_t now = time(nullptr);
+        struct tm tm_info{};
+        localtime_r(&now, &tm_info);
+        char tbuf[64];
+        strftime(tbuf, sizeof(tbuf), "%Y-%m-%d %H:%M:%S", &tm_info);
+        std::fprintf(g_fp,
+                     "\n========== DebugLog opened @ %s (pid=%d) ==========\n",
+                     tbuf, getpid());
+        std::fflush(g_fp);
+    }
+
+    __android_log_print(ANDROID_LOG_INFO, "FACE_DBG",
+                        "DebugLog file path: %s", g_path.c_str());
+}
+
+void log(const char* fmt, ...) {
+    char buf[1024];
+    va_list ap;
+    va_start(ap, fmt);
+    int n = std::vsnprintf(buf, sizeof(buf), fmt, ap);
+    va_end(ap);
+    if (n < 0) return;
+
+    std::lock_guard<std::mutex> lk(g_mtx);
+    writeLineLocked(buf);
+}
+
+void log_throttled(const char* key, const char* fmt, ...) {
+    char buf[1024];
+    va_list ap;
+    va_start(ap, fmt);
+    int n = std::vsnprintf(buf, sizeof(buf), fmt, ap);
+    va_end(ap);
+    if (n < 0) return;
+
+    const char* k = key ? key : "";
+    int64_t now = nowMs();
+
+    std::lock_guard<std::mutex> lk(g_mtx);
+    auto it = g_throttle.find(k);
+    if (it == g_throttle.end()) {
+        // First time we see this key -> always log.
+        ThrottleSlot slot;
+        slot.last_emit_ms = now;
+        slot.suppressed   = 0;
+        g_throttle.emplace(k, slot);
+        writeLineLocked(buf);
+        return;
+    }
+
+    ThrottleSlot& slot = it->second;
+    int64_t elapsed = now - slot.last_emit_ms;
+    if (elapsed < kThrottleWindowMs) {
+        // Still inside the 2s window -> swallow.
+        ++slot.suppressed;
+        return;
+    }
+
+    // Window elapsed: emit the line, annotated with how many we swallowed.
+    if (slot.suppressed > 0) {
+        char annotated[1200];
+        std::snprintf(annotated, sizeof(annotated),
+                      "%s (repeated %u times in last %lldms, key=%s)",
+                      buf, slot.suppressed, (long long)elapsed, k);
+        writeLineLocked(annotated);
+    } else {
+        writeLineLocked(buf);
+    }
+    slot.last_emit_ms = now;
+    slot.suppressed   = 0;
+}
+
+void flush() {
+    std::lock_guard<std::mutex> lk(g_mtx);
+    if (g_fp) std::fflush(g_fp);
+}
+
+std::string getLogPath() {
+    std::lock_guard<std::mutex> lk(g_mtx);
+    return g_path;
+}
+
+} // namespace DebugLog

app/src/main/cpp/DebugLog.h

@@ -0,0 +1,33 @@
+#ifndef FACE_SDK_DEBUGLOG_H
+#define FACE_SDK_DEBUGLOG_H
+
+#include <string>
+
+namespace DebugLog {
+
+// Call once (e.g. in android_main) with android_app->activity->internalDataPath.
+// Safe to call multiple times; subsequent calls are no-ops.
+void init(const char* internalDataPath);
+
+// Thread-safe. Also mirrored to logcat with tag "FACE_DBG".
+// Every line is prefixed with timestamp + thread id and flushed to disk immediately,
+// so even a hard crash will preserve the tail.
+void log(const char* fmt, ...) __attribute__((format(printf, 1, 2)));
+
+// Throttled variant keyed by a caller-supplied string.
+// - The first call with a given key is always written.
+// - Subsequent calls with the same key within 2 seconds are suppressed.
+// - When the throttle window elapses, the next matching call is written with a
+//   "(repeated N times in last Xms)" suffix describing the suppressed ones.
+// Use stable, short keys (e.g. "drawFrame.acquire", "drawFrame.present").
+void log_throttled(const char* key, const char* fmt, ...) __attribute__((format(printf, 2, 3)));
+
+// Force flush to disk.
+void flush();
+
+// Absolute path of the log file (valid after init()).
+std::string getLogPath();
+
+} // namespace DebugLog
+
+#endif // FACE_SDK_DEBUGLOG_H

app/src/main/cpp/main.cpp

@@ -3,44 +3,112 @@
 #include <game-activity/native_app_glue/android_native_app_glue.h>
 #include <game-activity/GameActivity.h>
 #include "AndroidOut.h"
+#include "DebugLog.h"
+#include "CrashHandler.h"
 #include "FaceApp.h"
 #include <android/asset_manager.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <atomic>
 #include <chrono>
+#include <cstdio>
 #include <thread>
 
 using namespace std;
+
+static inline pid_t dbg_tid() {
+    return static_cast<pid_t>(syscall(SYS_gettid));
+}
+
+static const char* appCmdName(int32_t cmd) {
+    switch (cmd) {
+        case APP_CMD_INIT_WINDOW:           return "APP_CMD_INIT_WINDOW";
+        case APP_CMD_TERM_WINDOW:           return "APP_CMD_TERM_WINDOW";
+        case APP_CMD_WINDOW_RESIZED:        return "APP_CMD_WINDOW_RESIZED";
+        case APP_CMD_WINDOW_REDRAW_NEEDED:  return "APP_CMD_WINDOW_REDRAW_NEEDED";
+        case APP_CMD_CONTENT_RECT_CHANGED:  return "APP_CMD_CONTENT_RECT_CHANGED";
+        case APP_CMD_GAINED_FOCUS:          return "APP_CMD_GAINED_FOCUS";
+        case APP_CMD_LOST_FOCUS:            return "APP_CMD_LOST_FOCUS";
+        case APP_CMD_CONFIG_CHANGED:        return "APP_CMD_CONFIG_CHANGED";
+        case APP_CMD_LOW_MEMORY:            return "APP_CMD_LOW_MEMORY";
+        case APP_CMD_START:                 return "APP_CMD_START";
+        case APP_CMD_RESUME:                return "APP_CMD_RESUME";
+        case APP_CMD_SAVE_STATE:            return "APP_CMD_SAVE_STATE";
+        case APP_CMD_PAUSE:                 return "APP_CMD_PAUSE";
+        case APP_CMD_STOP:                  return "APP_CMD_STOP";
+        case APP_CMD_DESTROY:               return "APP_CMD_DESTROY";
+        default:                            return "APP_CMD_???";
+    }
+}
+
 extern "C" {
 
 android_app* g_android_app = nullptr;
-Application* g_Application = nullptr;
+FaceApp* g_Application = nullptr;
 AAssetManager* g_assetManager = nullptr;
 
+jobject g_callback = nullptr;
+jobject g_callbackAnimationFinished = nullptr;
+
 void handle_cmd(android_app *pApp, int32_t cmd) {
+    DebugLog::log(">> handle_cmd %s(%d) tid=%d", appCmdName(cmd), (int)cmd, dbg_tid());
     switch (cmd) {
         case APP_CMD_INIT_WINDOW:
             aout << "APP_CMD_INIT_WINDOW" << std::endl;
-            g_Application->initVulkan();
+            DebugLog::log("handle_cmd APP_CMD_INIT_WINDOW: calling onWindowInit()");
+            if (g_Application != nullptr) {
+                g_Application->onWindowInit();
+                DebugLog::log("handle_cmd APP_CMD_INIT_WINDOW: onWindowInit() returned, isInited=%d",
+                              (int)g_Application->isInited());
+            } else {
+                DebugLog::log("handle_cmd APP_CMD_INIT_WINDOW: g_Application is null, skipping");
+            }
             break;
         case APP_CMD_TERM_WINDOW:
             aout << "APP_CMD_TERM_WINDOW" << std::endl;
+            DebugLog::log("handle_cmd APP_CMD_TERM_WINDOW: calling onWindowLost()");
+            if (g_Application != nullptr) {
+                g_Application->onWindowLost();
+            }
+            DebugLog::log("handle_cmd APP_CMD_TERM_WINDOW: onWindowLost() returned");
             break;
         default:
             break;
     }
+    DebugLog::log("<< handle_cmd %s done", appCmdName(cmd));
 }
 
+const int ArgLen = 128*1024;
+char g_InitArgString[ArgLen] = {0};
+
 void android_main(struct android_app *pApp) {
+    DebugLog::init(pApp->activity->internalDataPath);
+    // 安装信号处理器越早越好：之前的 FORTIFY: pthread_mutex_lock 崩溃
+    // 是裸的 SIGABRT，没有任何 signal handler，所以 DebugLog 文件停在最后
+    // 一条业务日志、看不到任何崩溃栈。装上之后任何 fatal signal 都会把：
+    //   * 信号名 / si_code / si_addr / pid / tid / 当前 note
+    //   * 完整 backtrace（PC + 模块 + 符号 + 偏移）
+    // 同步落到 internalDataPath/face_sdk_crash.log（以及 DebugLog 文件尾），
+    // 然后再走默认 handler 让 debuggerd 产生 tombstone。
+    CrashHandler::install(pApp->activity->internalDataPath,
+                          DebugLog::getLogPath());
+    DebugLog::log("android_main start, pid=%d tid=%d, logPath=%s",
+                  getpid(), dbg_tid(), DebugLog::getLogPath().c_str());
     aout << "Welcome to android_main" << std::endl;
     g_android_app = pApp;
     g_assetManager = pApp->activity->assetManager;
-    FaceApp application;
-    g_Application = &application;
+    //FaceApp application;
+    //g_Application = &application;
+    if(g_Application == nullptr) {
+        g_Application = new FaceApp();
+    }
+    g_Application->SetInitArg(g_InitArgString);
     pApp->onAppCmd = handle_cmd;
-
+    long long last_update_time = 0;
     android_app_set_motion_event_filter(pApp, nullptr);
-
+    long long _lastDrawFrameTime = chrono::duration_cast<chrono::milliseconds>(chrono::system_clock::now().time_since_epoch()).count();
     do {
-        auto ms = chrono::duration_cast<chrono::milliseconds>(chrono::system_clock::now().time_since_epoch()).count();
+        auto start_time = chrono::duration_cast<chrono::milliseconds>(chrono::system_clock::now().time_since_epoch()).count();
         // Process all pending events before running game logic.
         bool done = false;
         while (!done) {
@@ -66,32 +134,110 @@ void android_main(struct android_app *pApp) {
                     }
             }
         }
-        if(application.isInited())
+        // isInited() checks _applicationInited && _faceAppInited && _sceondInited,
+        // so while the window is gone (between TERM_WINDOW and the next
+        // INIT_WINDOW) this is false and we skip drawFrame entirely — no
+        // exceptions, no log spam. The outer sleep at the bottom already
+        // caps the loop frequency.
+        if(g_Application->isInited())
         {
-            application.drawFrame();
+            auto frameTime = (start_time - _lastDrawFrameTime);
+            _lastDrawFrameTime = chrono::duration_cast<chrono::milliseconds>(chrono::system_clock::now().time_since_epoch()).count();
+
+            static uint64_t s_frameIdx = 0;
+            static uint64_t s_excCount = 0;
+            ++s_frameIdx;
+            if (s_frameIdx % 600 == 0) {
+                DebugLog::log("heartbeat: frame=%llu exceptions_so_far=%llu",
+                              (unsigned long long)s_frameIdx,
+                              (unsigned long long)s_excCount);
+            }
+            // 每 60 帧刷新一次崩溃 note，崩溃时 dump 里能看到「最后一次活着」
+            // 的帧号和异常数，定位是不是在某一个固定帧附近卡死。
+            if (s_frameIdx % 60 == 0) {
+                char note[128];
+                std::snprintf(note, sizeof(note),
+                              "drawFrame frame=%llu exc=%llu",
+                              (unsigned long long)s_frameIdx,
+                              (unsigned long long)s_excCount);
+                CrashHandler::setNote(note);
+            }
+
+            try {
+                g_Application->drawFrame(frameTime);
+            } catch (const std::exception& e) {
+                ++s_excCount;
+                DebugLog::log_throttled("main.drawFrame.stdexc",
+                              "!!! drawFrame std::exception (frame=%llu count=%llu): %s",
+                              (unsigned long long)s_frameIdx,
+                              (unsigned long long)s_excCount,
+                              e.what());
+            } catch (...) {
+                ++s_excCount;
+                DebugLog::log_throttled("main.drawFrame.unknown",
+                              "!!! drawFrame unknown exception (frame=%llu count=%llu)",
+                              (unsigned long long)s_frameIdx,
+                              (unsigned long long)s_excCount);
+            }
+        }
+        auto end_time = chrono::duration_cast<chrono::milliseconds>(chrono::system_clock::now().time_since_epoch()).count();
+        auto frameTime = end_time - last_update_time;
+        last_update_time = end_time;
+        auto function_time = (end_time - start_time);
+        //aout << "function_time:" << function_time << " fps:" << (1000/frameTime) << std::endl;
+        if(function_time < 35)
+        {
+            this_thread::sleep_for(chrono::milliseconds((35-function_time)));
         }
-        auto end_ms = chrono::duration_cast<chrono::milliseconds>(chrono::system_clock::now().time_since_epoch()).count();
-        this_thread::sleep_for(chrono::milliseconds((end_ms-ms)));
     } while (!pApp->destroyRequested);
-    application.cleanup();
+    DebugLog::log("android_main: destroyRequested, running cleanup");
+
+    // 关键：这里只复位 FaceApp 的"second-init" 状态机标记，**不销毁**任何
+    // Vulkan 资源。
+    //
+    //   - 窗口相关资源（surface/swapchain/framebuffers/imageViews/
+    //     commandBuffers/sync）已经在 APP_CMD_TERM_WINDOW → onWindowLost()
+    //     里被 cleanupForWindowLost() 干净销毁；
+    //   - renderPass / graphicsPipeline / pipelineLayout / VkDevice /
+    //     VkInstance / VMA / 所有 textures / FaceApp 自身 pipelines 是 g_Application
+    //     单例的"全局资源"，跨 NativeActivity 实例复用。下次 Activity 启动
+    //     onWindowInit 会走 reinitForNewWindow() 重建窗口资源、复用全局资源。
+    //
+    // 历史教训：之前这里调过 g_Application->cleanupSecondInit()，那个函数会
+    // 把 renderPass / graphicsPipeline / pipelineLayout 全部 destroy 掉但既
+    // 不置 VK_NULL_HANDLE 也不复位 _applicationInited。结果用户从主界面切镜
+    // 头再进 MakeupActivity 时，onWindowInit 看到 _applicationInited=1 走 reinit
+    // 复用路径，引用悬空的 renderPass 调 vkCreateFramebuffer，validation
+    // layer 检测出 use-after-free 直接 SEGV。
+    //application.cleanup();
+    //g_Application->cleanupSecondInit();
+    g_Application->clearnSecondFaceApp();
+    DebugLog::log("android_main: exit");
 }
 }
 
-extern void TextureLoadProcessWithVulkan(uint8_t* data, int width, int height, int rowStride, size_t dataSize);
+extern void TextureLoadProcessWithVulkan(uint8_t* data, int width, int height, int rowStride, size_t dataSize, int rotation, bool mirrorX);
 extern void ReceiveFacePoint(float* pos, int count, int width, int height);
 
 void processWithVulkan(uint8_t* data, int width, int height, int format,
-                       int rowStride, size_t dataSize) {
-    TextureLoadProcessWithVulkan(data, width, height, rowStride, dataSize);
+                       int rowStride, size_t dataSize, int rotation, bool mirrorX) {
+    TextureLoadProcessWithVulkan(data, width, height, rowStride, dataSize, rotation, mirrorX);
 }
 
+
+
 extern "C"
 JNIEXPORT void JNICALL
-Java_com_hmwl_face_FaceActivity_processImageNative(JNIEnv *env, jobject thiz, jobject buffer,
-                                                     jint width, jint height, jint format,
-                                                     jint row_stride, jint pixel_stride,
-                                                     jint rotation) {
-
+Java_com_hmwl_face_1sdk_FaceActivity_processImageNative(JNIEnv *env, jobject thiz, jobject buffer,
+                                                        jint width, jint height, jint format,
+                                                        jint row_stride, jint pixel_stride,
+                                                        jint rotation, jboolean mirror_x) {
+    static std::atomic<uint64_t> s_imgCount{0};
+    uint64_t n = s_imgCount.fetch_add(1) + 1;
+    if (n == 1 || n % 300 == 0) {
+        DebugLog::log("processImageNative #%llu tid=%d w=%d h=%d mirror=%d",
+                      (unsigned long long)n, dbg_tid(), width, height, (int)mirror_x);
+    }
     uint8_t* imageData = static_cast<uint8_t*>(env->GetDirectBufferAddress(buffer));
     jlong capacity = env->GetDirectBufferCapacity(buffer);
 
@@ -99,23 +245,291 @@ Java_com_hmwl_face_FaceActivity_processImageNative(JNIEnv *env, jobject thiz, jo
         return;
     }
 
-    // 在这里将图像数据传递给 Vulkan
-    // 创建 Vulkan 图像或更新现有图像
-    processWithVulkan(imageData, width, height, format, row_stride, capacity);
+    // rotation = ImageInfo.getRotationDegrees()，给 shader 用来做 UV 旋转，
+    // 让不同 sensor orientation 的设备显示方向一致。
+    // mirror_x = true 表示前置摄像头：所有顶点 shader 会把 gl_Position.x 翻转
+    // 一次，达到"镜子效果"——这是化妆/美妆类 app 的标准体验。
+    processWithVulkan(imageData, width, height, format, row_stride, capacity,
+                      (int)rotation, mirror_x == JNI_TRUE);
 }
-
-
 extern "C"
 JNIEXPORT void JNICALL
-Java_com_hmwl_face_FaceActivity_passDataToNative(JNIEnv *env, jobject thiz, jobject buffer,
-                                                   jint point_count, jint width, jint height) {
+Java_com_hmwl_face_1sdk_FaceActivity_passDataToNative(JNIEnv *env, jobject thiz, jobject buffer,
+                                                      jint point_count, jint width, jint height) {
+    static std::atomic<uint64_t> s_ptCount{0};
+    uint64_t n = s_ptCount.fetch_add(1) + 1;
     float* pos = static_cast<float*>(env->GetDirectBufferAddress(buffer));
 
     if (pos == nullptr) {
-        // 处理错误
+        DebugLog::log_throttled("passDataToNative.nullBuffer",
+                                "passDataToNative #%llu got NULL DirectBufferAddress!",
+                                (unsigned long long)n);
+        return;
+    }
+    // 节流：每 120 次实际数据通路打一行（约每 4 秒一次，足够确认通路活着即可）。
+    if (n == 1 || n % 120 == 0) {
+        DebugLog::log("passDataToNative #%llu point_count=%d w=%d h=%d p0=(%.3f,%.3f,%.3f)",
+                      (unsigned long long)n, point_count, width, height,
+                      pos[0], pos[1], pos[2]);
+    }
+
+    ReceiveFacePoint(pos, point_count, width, height);
+}
+
+extern "C"
+JNIEXPORT void JNICALL
+Java_com_hmwl_face_1sdk_FaceActivity_SetCppInitArg(JNIEnv *env, jobject thiz, jstring json) {
+    const char *nativeString = env->GetStringUTFChars(json, nullptr);
+    jsize len = env->GetStringUTFLength(json);
+    DebugLog::log("JNI SetCppInitArg tid=%d len=%d", dbg_tid(), (int)len);
+    if(len > ArgLen)
+    {
+        aout << "ArgLen to long:" << len << std::endl;
+        return;
+    }
+    memcpy(g_InitArgString, nativeString, len);
+}
+
+extern "C"
+JNIEXPORT void JNICALL
+Java_com_hmwl_face_1sdk_FaceActivity_StopRunning(JNIEnv *env, jobject thiz) {
+    DebugLog::log("JNI StopRunning tid=%d", dbg_tid());
+    g_Application->Stop();
+}
+
+JavaVM* g_jvm = nullptr;
+
+// 添加 JNI_OnLoad 函数
+JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void* reserved) {
+    g_jvm = vm;  // 保存 JavaVM 指针，供其他线程使用
+    return JNI_VERSION_1_6;
+}
+
+void CppCallback()
+{
+    JNIEnv* env = nullptr;
+    bool needDetach = false;
+
+    // 获取当前线程的 JNIEnv
+    JavaVM* vm = g_jvm; // 你需要提前保存 JavaVM* 到全局变量 g_jvm
+    int status = vm->GetEnv((void**)&env, JNI_VERSION_1_6);
+    if (status == JNI_EDETACHED) {
+        // 当前线程未 attach，需 attach
+        if (vm->AttachCurrentThread(&env, nullptr) != 0) {
+            return;
+        }
+        needDetach = true;
+    } else if (status != JNI_OK) {
         return;
     }
 
-    // 或者直接将指针传递给Vulkan
-    ReceiveFacePoint(pos, point_count, width, height);
+    if (g_callback == nullptr) {
+        if (needDetach) vm->DetachCurrentThread();
+        return;
+    }
+
+    // 1. 获取 CallbackInterface 的 class
+    jclass callbackClass = env->GetObjectClass(g_callback);
+    if (callbackClass == nullptr) {
+        if (needDetach) vm->DetachCurrentThread();
+        return;
+    }
+
+    // 2. 获取 OnLoadActionFinished 方法 ID（注意方法名大小写必须一致！）
+    jmethodID methodId = env->GetMethodID(callbackClass, "OnLoadMotionListFinished", "(Ljava/lang/String;)V");
+    if (methodId == nullptr) {
+        env->ExceptionDescribe(); // 打印异常
+        env->ExceptionClear();
+        if (needDetach) vm->DetachCurrentThread();
+        return;
+    }
+
+    // 3. 构造 jstring 参数
+    jstring jResult = env->NewStringUTF("ok");
+
+    // 4. 调用 Java 回调
+    env->CallVoidMethod(g_callback, methodId, jResult);
+
+    // 5. 检查是否抛出异常
+    if (env->ExceptionCheck()) {
+        env->ExceptionDescribe();
+        env->ExceptionClear();
+    }
+
+    // 6. 释放局部引用（可选，但推荐）
+    env->DeleteLocalRef(jResult);
+    env->DeleteLocalRef(callbackClass);
+
+    // 7. 如果是临时 attach 的线程，要 detach
+    if (needDetach) {
+        vm->DetachCurrentThread();
+    }
+}
+
+
+void CppAnimationFinishedCallback()
+{
+    JNIEnv* env = nullptr;
+    bool needDetach = false;
+
+    // 获取当前线程的 JNIEnv
+    JavaVM* vm = g_jvm; // 你需要提前保存 JavaVM* 到全局变量 g_jvm
+    int status = vm->GetEnv((void**)&env, JNI_VERSION_1_6);
+    if (status == JNI_EDETACHED) {
+        // 当前线程未 attach，需 attach
+        if (vm->AttachCurrentThread(&env, nullptr) != 0) {
+            return;
+        }
+        needDetach = true;
+    } else if (status != JNI_OK) {
+        return;
+    }
+
+    if (g_callbackAnimationFinished == nullptr) {
+        if (needDetach) vm->DetachCurrentThread();
+        return;
+    }
+
+    // 1. 获取 CallbackInterface 的 class
+    jclass callbackClass = env->GetObjectClass(g_callbackAnimationFinished);
+    if (callbackClass == nullptr) {
+        if (needDetach) vm->DetachCurrentThread();
+        return;
+    }
+
+    // 2. 获取 OnLoadActionFinished 方法 ID（注意方法名大小写必须一致！）
+    jmethodID methodId = env->GetMethodID(callbackClass, "OnPlayMotionListFinished", "()V");
+    if (methodId == nullptr) {
+        env->ExceptionDescribe(); // 打印异常
+        env->ExceptionClear();
+        if (needDetach) vm->DetachCurrentThread();
+        return;
+    }
+
+    // 4. 调用 Java 回调
+    env->CallVoidMethod(g_callbackAnimationFinished, methodId);
+
+    // 5. 检查是否抛出异常
+    if (env->ExceptionCheck()) {
+        env->ExceptionDescribe();
+        env->ExceptionClear();
+    }
+
+    env->DeleteLocalRef(callbackClass);
+
+    // 7. 如果是临时 attach 的线程，要 detach
+    if (needDetach) {
+        vm->DetachCurrentThread();
+    }
+}
+
+
+
+extern "C"
+JNIEXPORT jstring JNICALL
+Java_com_hmwl_face_1sdk_FaceActivity_PreReadAction(JNIEnv *env, jobject thiz, jstring motion,
+                                                   jobject callback) {
+    DebugLog::log("JNI PreReadAction tid=%d", dbg_tid());
+    // 清理旧的全局引用
+    if (g_callback != nullptr) {
+        env->DeleteGlobalRef(g_callback);
+        g_callback = nullptr;
+    }
+
+    // 保存新的回调
+    if (callback != nullptr) {
+        g_callback = env->NewGlobalRef(callback);
+    } else {
+        g_callback = nullptr;
+    }
+
+    const char *nativeString = env->GetStringUTFChars(motion, nullptr);
+    jsize len = env->GetStringUTFLength(motion);
+    if(len > ArgLen)
+    {
+        aout << "ArgLen to long:" << len << std::endl;
+    }
+
+    std::string ret = g_Application->preLoadMotionList(nativeString, CppCallback);
+    return env->NewStringUTF(ret.c_str());
+}
+
+const char DELIMITER = 0x1F; // same as \u001F
+
+std::vector<std::string> splitMotionString(const std::string& input) {
+    std::vector<std::string> result;
+    if (input.empty()) return result;
+
+    size_t start = 0;
+    size_t pos = input.find(DELIMITER);
+
+    while (pos != std::string::npos) {
+        result.push_back(input.substr(start, pos - start));
+        start = pos + 1;
+        pos = input.find(DELIMITER, start);
+    }
+    // Add last part
+    result.push_back(input.substr(start));
+
+    return result;
+}
+
+extern "C"
+JNIEXPORT void JNICALL
+Java_com_hmwl_face_1sdk_FaceActivity_ChangeMotionCpp(JNIEnv *env, jobject thiz, jstring json,
+                                                     jobject callback, jboolean loop) {
+    const char *nativeString = env->GetStringUTFChars(json, nullptr);
+    jsize len = env->GetStringUTFLength(json);
+    DebugLog::log_throttled("JNI.ChangeMotionCpp",
+                            "JNI ChangeMotionCpp tid=%d len=%d loop=%d",
+                            dbg_tid(), (int)len, (int)loop);
+    if(len > ArgLen)
+    {
+        aout << "ArgLen to long:" << len << std::endl;
+        return;
+    }
+
+    // 保存新的回调
+    if (callback != nullptr) {
+        g_callbackAnimationFinished = env->NewGlobalRef(callback);
+    } else {
+        g_callbackAnimationFinished = nullptr;
+    }
+
+    if(g_Application->isInited())
+    {
+        std::vector<std::string> motions = splitMotionString(nativeString);
+        g_Application->changeMotionList(motions, CppAnimationFinishedCallback, loop);
+    }
+}
+extern "C"
+JNIEXPORT void JNICALL
+Java_com_hmwl_face_1sdk_FaceActivity_StopMotionNative(JNIEnv *env, jobject thiz) {
+    DebugLog::log("JNI StopMotionNative tid=%d", dbg_tid());
+    g_Application->StopMotion();
+}
+extern "C"
+JNIEXPORT void JNICALL
+Java_com_hmwl_face_1sdk_FaceActivity_ResumeMotionNative(JNIEnv *env, jobject thiz) {
+    DebugLog::log("JNI ResumeMotionNative tid=%d", dbg_tid());
+    g_Application->ResumeMotion();
+}
+
+// 给 Java/Kotlin 侧用的日志桥：把 Java 端关键事件写进 native 的
+// face_sdk_debug.log，使 Java + native + Vulkan 渲染日志能在同一个
+// 文件里按时间戳排好序，一次 adb pull 就能拿到完整时间线。
+extern "C"
+JNIEXPORT void JNICALL
+Java_com_hmwl_face_1sdk_DebugLog_nativeLog(JNIEnv *env, jclass clazz,
+                                           jstring jtag, jstring jmsg) {
+    if (jmsg == nullptr) return;
+    const char* tag = jtag ? env->GetStringUTFChars(jtag, nullptr) : nullptr;
+    const char* msg = env->GetStringUTFChars(jmsg, nullptr);
+    if (tag) {
+        DebugLog::log("[J][%s] %s", tag, msg);
+    } else {
+        DebugLog::log("[J] %s", msg);
+    }
+    if (tag) env->ReleaseStringUTFChars(jtag, tag);
+    env->ReleaseStringUTFChars(jmsg, msg);
 }

app/src/main/java/com/hmwl/face_sdk/DebugLog.java

@@ -0,0 +1,38 @@
+package com.hmwl.face_sdk;
+
+import android.util.Log;
+
+/**
+ * Java/Kotlin 端日志桥。所有调用最终通过 JNI 写到 native 端的
+ * face_sdk_debug.log 文件（与 native DebugLog::log 共用一份），
+ * 同时镜像到 logcat（tag = 调用方 tag），方便联机调试时一次 adb pull
+ * 就能拿到完整时间线（Java + native + Vulkan 渲染）。
+ *
+ * 使用约定：
+ *   - 业务低频事件用 i(tag, msg)
+ *   - 错误用 e(tag, msg)
+ *   - 高频帧级日志请自行节流，本类不再做二次节流
+ */
+public final class DebugLog {
+    private DebugLog() {}
+
+    public static void i(String tag, String msg) {
+        Log.i(tag, msg);
+        try {
+            nativeLog(tag, msg);
+        } catch (UnsatisfiedLinkError e) {
+            // native 还没 attach 的极早期阶段，吞掉避免崩溃
+        }
+    }
+
+    public static void e(String tag, String msg) {
+        Log.e(tag, msg);
+        try {
+            nativeLog("[E]" + tag, msg);
+        } catch (UnsatisfiedLinkError e) {
+            // 同上
+        }
+    }
+
+    private static native void nativeLog(String tag, String msg);
+}

app/src/main/java/com/hmwl/face_sdk/FaceActivity.java

@@ -1,14 +1,14 @@
-package com.hmwl.face;
+package com.hmwl.face_sdk;
 
 import android.Manifest;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
 import android.util.Log;
-import android.view.MotionEvent;
 import android.view.View;
 
 import androidx.annotation.NonNull;
-import androidx.camera.core.AspectRatio;
+import android.util.Size;
+
 import androidx.camera.core.CameraSelector;
 import androidx.camera.core.ImageAnalysis;
 import androidx.camera.core.ImageProxy;
@@ -31,15 +31,35 @@ import java.util.List;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
-import java.util.concurrent.TimeUnit;
 
 public class FaceActivity extends GameActivity implements FaceLandmarkerHelper.LandmarkerListener {
     private static final String TAG = "FaceActivity";
 
     static {
-        System.loadLibrary("sample");
+        System.loadLibrary("face_sdk");
     }
 
+    /**
+     * Intent extra key：调用方（example/MainActivity 等）通过它告诉 FaceActivity
+     * 启动哪个朝向的摄像头。值类型 int，取自 androidx.camera.core.CameraSelector：
+     *   - CameraSelector.LENS_FACING_BACK  (0)
+     *   - CameraSelector.LENS_FACING_FRONT (1)
+     * 缺省（未提供 extra）时走 LENS_FACING_BACK，保留旧调用方的行为。
+     *
+     * 该值同时决定两件事：
+     *   ① CameraSelector 朝向；
+     *   ② mirrorX 镜像标志：前置摄像头时 sensor 帧是"用户右手在画面右侧"，
+     *      为了显示成"镜子效果"（用户右手在屏幕左侧），所有顶点 shader 在
+     *      gl_Position 阶段对 NDC.x 做一次水平翻转。这件事通过 push constant
+     *      的 mirror_x 字段透传到 GPU；对应地 FaceLandmarkerHelper 也会对
+     *      bitmap 做 postScale(-1, 1) 让 mediapipe 输入与显示画面方向一致，
+     *      确保 face 贴图与 bg 完美对齐。
+     */
+    public static final String EXTRA_LENS_FACING = "com.hmwl.face_sdk.LENS_FACING";
+
+    /** 当前 session 使用的摄像头朝向。在 onCreate 里从 Intent extra 读取并固定。 */
+    private int lensFacing = CameraSelector.LENS_FACING_BACK;
+
     private ProcessCameraProvider cameraProvider;
     private void initCamera(){
         backgroundExecutor = Executors.newSingleThreadExecutor();
@@ -50,6 +70,21 @@ public class FaceActivity extends GameActivity implements FaceLandmarkerHelper.L
         }
     }
 
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+
+        if (requestCode == REQUEST_CAMERA_PERMISSION) {
+            // 检查权限是否被授予
+            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                // 用户授予了权限，启动相机
+                startCamera();
+            } else {
+                requestCameraPermission();
+            }
+        }
+    }
+
     private void startCamera() {
         ListenableFuture<ProcessCameraProvider> cameraProviderFuture =
                 ProcessCameraProvider.getInstance(this);
@@ -59,58 +94,51 @@ public class FaceActivity extends GameActivity implements FaceLandmarkerHelper.L
                 cameraProvider = cameraProviderFuture.get();
 
                 CameraSelector cameraSelector = new CameraSelector.Builder()
-                        .requireLensFacing(CameraSelector.LENS_FACING_BACK)
+                        .requireLensFacing(lensFacing)
                         .build();
 
+                // 显式锁定分析帧分辨率为 480x640（CameraX UI 坐标系，竖屏：短边 x 长边）。
+                // 不同手机的相机硬件原生支持的分辨率差异很大（旗舰机随便给 1920x1440、
+                // 入门机可能是 320x240），CameraX 默认会按"最贴近 setTargetAspectRatio
+                // 的 supported size"挑一个，结果在不同设备上拿到的分析帧大小都不一样。
+                // 这会带来三个麻烦：
+                //   ① bg 纹理 GPU 内存占用波动很大（高端机一帧 ~10MB staging buffer）；
+                //   ② mediapipe 推理耗时随分辨率非线性升高（Pixel 上 1920x1440 比
+                //      640x480 慢 4-6 倍），帧率掉得明显；
+                //   ③ 我们的 SDK 用归一化 landmark + 中央方形 crop，本来就不需要更高
+                //      分辨率，多出来的像素是纯浪费。
+                //
+                // 锁定 480x640 后：sensor 坐标系下分析帧固定 640x480 (rotation=90 时)，
+                // FaceLandmarkerHelper 中央方形裁切固定 480x480，bg 上传纹理也固定，
+                // 不同手机上行为一致。
+                //
+                // 实际尺寸由 CameraX 决定（会找最接近的硬件支持档位），但设备实测
+                // 几乎都能精确给出 640x480。
                 imageAnalyzer = new ImageAnalysis.Builder()
-                        .setTargetAspectRatio(AspectRatio.RATIO_4_3)
+                        .setTargetResolution(new Size(480, 640))
                         .setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST)
                         .setOutputImageFormat(ImageAnalysis.OUTPUT_IMAGE_FORMAT_RGBA_8888)
                         .build();
 
 
                 imageAnalyzer.setAnalyzer(backgroundExecutor, new ImageAnalysis.Analyzer() {
-                    private long lastCaptureTime = 0;
                     private int frameCount = 0;
 
                     @Override
                     public void analyze(@NonNull ImageProxy image) {
                         frameCount++;
-                        long currentTime = System.currentTimeMillis();
                         try {
-                            long captureTimeNs = image.getImageInfo().getTimestamp();
-                            long analyzeTime = System.currentTimeMillis();
-
-                            // 简单直接的计算方法
-                            long captureTimeMs = TimeUnit.NANOSECONDS.toMillis(captureTimeNs);
-                            long latency = analyzeTime - captureTimeMs;
-
-                            // 帧率计算
-                            if (lastCaptureTime > 0) {
-                                long frameInterval = captureTimeMs - lastCaptureTime;
-                                double fps = 1000.0 / frameInterval;
-
-                                if (frameCount % 10 == 0) { // 每30帧打印一次
-                                    Log.i("TimeLatency", String.format(
-                                            "Frame %d - Latency: %d ms, FPS: %.1f",
-                                            frameCount, latency, fps
-                                    ));
-                                }
-                            }
-
-                            lastCaptureTime = captureTimeMs;
-
                             processImageForVulkan(image);
-                            if(frameCount %2 == 0)
+                            if(frameCount %3 == 0)
                             {
                                 detectFace(image);
                             }
-                            else
-                            {
-                                image.close();
-                            }
+//                            else
+//                            {
+//                                image.close();
+//                            }
                         } finally {
-                            //image.close(); // 确保在这里关闭
+                            image.close(); // 确保在这里关闭
                             //Log.d("Camera", "Image closed, ready for next frame");
                         }
                     }
@@ -125,35 +153,56 @@ public class FaceActivity extends GameActivity implements FaceLandmarkerHelper.L
     }
 
     private void processImageForVulkan(ImageProxy image) {
-        // 获取图像信息
         int width = image.getWidth();
         int height = image.getHeight();
         int format = image.getFormat();
 
-        // 获取图像数据平面
         ImageProxy.PlaneProxy[] planes = image.getPlanes();
 
-        // 对于 RGBA_8888 格式，通常只有一个平面
         if (planes.length > 0) {
             ImageProxy.PlaneProxy plane = planes[0];
             ByteBuffer buffer = plane.getBuffer();
             int rowStride = plane.getRowStride();
             int pixelStride = plane.getPixelStride();
 
-            // 调用 Native 方法处理图像
+            // mirrorX 为 true 时所有顶点 shader 会把 gl_Position.x 翻转一次，达到
+            // "镜子效果"——前置摄像头唯一需要的额外处理。后置不开镜像。
+            boolean mirrorX = (lensFacing == CameraSelector.LENS_FACING_FRONT);
             processImageNative(buffer, width, height, format,
-                    rowStride, pixelStride, image.getImageInfo().getRotationDegrees());
+                    rowStride, pixelStride, image.getImageInfo().getRotationDegrees(),
+                    mirrorX);
         }
     }
 
+    public void Stop(){
+        StopRunning();
+    }
+
+    private native void StopMotionNative();
+    public void StopMotion(){
+        StopMotionNative();
+    }
+
+    private native void ResumeMotionNative();
+    public void ResumeMotion(){
+        ResumeMotionNative();
+    }
+
+    private native void StopRunning();
+
     // Native 方法
     private native void processImageNative(ByteBuffer buffer, int width, int height,
                                            int format, int rowStride, int pixelStride,
-                                           int rotation);
+                                           int rotation, boolean mirrorX);
 
     private void detectFace(ImageProxy imageProxy) {
+        // 前置摄像头：FaceLandmarkerHelper 内部会对 bitmap 做 postScale(-1, 1)，
+        // 让 mediapipe 看到的是"用户视角"的图像。这样 landmark 输出就是用户视角
+        // 归一化坐标，跟 shader 里 gl_Position.x 翻转一次后的 bg 画面方向一致，
+        // face 贴图位置才能精确对齐。
+        boolean isFrontCamera = (lensFacing == CameraSelector.LENS_FACING_FRONT);
         faceLandmarkerHelper.detectLiveStream(
-                imageProxy,false
+                imageProxy, isFrontCamera
         );
     }
 
@@ -176,6 +225,15 @@ public class FaceActivity extends GameActivity implements FaceLandmarkerHelper.L
     @Override
     protected void onCreate(Bundle savedInstanceState){
         super.onCreate(savedInstanceState);
+        // 必须在 initCamera() 之前读，CameraSelector 的朝向就靠这个 lensFacing。
+        // 兼容旧调用方：未提供 EXTRA_LENS_FACING 时默认后置。
+        if (getIntent() != null) {
+            lensFacing = getIntent().getIntExtra(
+                    EXTRA_LENS_FACING, CameraSelector.LENS_FACING_BACK);
+        }
+        Log.d(TAG, "onCreate lensFacing=" + lensFacing
+                + " (front=" + CameraSelector.LENS_FACING_FRONT
+                + " back=" + CameraSelector.LENS_FACING_BACK + ")");
         initCamera();
 
         backgroundExecutor.execute(new Runnable() {
@@ -186,7 +244,6 @@ public class FaceActivity extends GameActivity implements FaceLandmarkerHelper.L
                         0.5f,
                         0.5f,
                         1,
-                        0,
                         RunningMode.LIVE_STREAM,
                         FaceActivity.this,
                         FaceActivity.this
@@ -196,31 +253,6 @@ public class FaceActivity extends GameActivity implements FaceLandmarkerHelper.L
     }
 
 
-
-    @Override
-    public boolean onTouchEvent(MotionEvent event) {
-        int action = event.getActionMasked();
-        float x = event.getX();
-        float y = event.getY();
-
-        switch (action) {
-            case MotionEvent.ACTION_DOWN:
-                Log.d(TAG, "Java Layer: Touch DOWN at (" + x + ", " + y + ")");
-                // ✅ 你可以在这里做些事，比如发消息给 C++，或 UI 反馈
-                break;
-            case MotionEvent.ACTION_MOVE:
-                Log.d(TAG, "Java Layer: Touch MOVE");
-                break;
-            case MotionEvent.ACTION_UP:
-                Log.d(TAG, "Java Layer: Touch UP");
-                break;
-        }
-
-        // ⚠️ 关键：返回 false 才能让事件继续传递给 Native 层（C++）
-        // 如果返回 true，表示事件已被消费，C++ 层将收不到！
-        return false;
-    }
-
     @Override
     public void onWindowFocusChanged(boolean hasFocus) {
         super.onWindowFocusChanged(hasFocus);
@@ -301,11 +333,62 @@ public class FaceActivity extends GameActivity implements FaceLandmarkerHelper.L
         FloatBuffer floatBuffer = nativeBuffer.asFloatBuffer();
         floatBuffer.put(points);
         floatBuffer.position(0);
-        long cur_time =  System.currentTimeMillis();
-        Log.i("TimeLatency","Result Data ProcessTime:" + (cur_time-start_time));
+        // 节流：每 30 次调用打一次到 native 文件，方便和 native 那边的
+        // passDataToNative.tick 对账。
+        onResultsCallCount++;
+        if (onResultsCallCount % 30 == 1) {
+            DebugLog.i("FaceActivity",
+                    "onResults call#" + onResultsCallCount
+                            + " index=" + index + " input=" + width + "x" + height
+                            + " p0=(" + points[0] + "," + points[1] + "," + points[2] + ")");
+        }
         passDataToNative(nativeBuffer, index, width, height);
-        Log.i("TimeLatency","passDataToNative ProcessTime:" + (System.currentTimeMillis() - cur_time));
     }
+    private long onResultsCallCount = 0;
 
     public native void passDataToNative(ByteBuffer buffer, int pointCount, int width, int height);
+
+    protected native void SetCppInitArg(String json);
+
+    public void SetInitArg(String json)
+    {
+        SetCppInitArg(json);
+    }
+
+    public interface LoadMotionListFinishedCallback {
+        void OnLoadMotionListFinished(String result);
+    }
+
+    public interface PlayMotionListFinishedCallback {
+        void OnPlayMotionListFinished();
+    }
+
+    protected native String PreReadAction(String motion, LoadMotionListFinishedCallback callback);
+    public String PreLoadAction(String json, LoadMotionListFinishedCallback callback){
+        return PreReadAction(json, callback);
+    }
+
+    protected native void ChangeMotionCpp(String json, PlayMotionListFinishedCallback callback, boolean loop);
+    public void PlayMotionList(List<String> motionList, boolean loop, PlayMotionListFinishedCallback callback)
+    {
+        if(callback == null)
+        {
+            callback = new PlayMotionListFinishedCallback() {
+                @Override
+                public void OnPlayMotionListFinished() {
+                    Log.i(TAG, "OnPlayMotionListFinished: ");
+                }
+            };
+        }
+        final String DELIMITER = "\u001F"; // ASCII Unit Separator
+        String motion_list_str = String.join(DELIMITER, motionList);
+        ChangeMotionCpp(motion_list_str, callback, loop);
+    }
+
+    // 添加这个缺失的方法
+    @Override
+    public void onEmpty() {
+        // 当没有检测到人脸时的处理逻辑
+        //Log.d(TAG, "No face detected in the current frame");
+    }
 }

app/src/main/java/com/hmwl/face_sdk/FaceLandmarkerHelper.kt

@@ -1,4 +1,4 @@
-package com.hmwl.face
+package com.hmwl.face_sdk
 
 import android.content.Context
 import android.graphics.Bitmap
@@ -20,8 +20,7 @@ class FaceLandmarkerHelper(
     var minFaceTrackingConfidence: Float = DEFAULT_FACE_TRACKING_CONFIDENCE,
     var minFacePresenceConfidence: Float = DEFAULT_FACE_PRESENCE_CONFIDENCE,
     var maxNumFaces: Int = DEFAULT_NUM_FACES,
-    var currentDelegate: Int = DELEGATE_CPU,
-    var runningMode: RunningMode = RunningMode.IMAGE,
+    var runningMode: RunningMode = RunningMode.LIVE_STREAM,
     val context: Context,
     // this listener is only used when running in RunningMode.LIVE_STREAM
     val faceLandmarkerHelperListener: LandmarkerListener? = null
@@ -50,14 +49,7 @@ class FaceLandmarkerHelper(
         val baseOptionBuilder = BaseOptions.builder()
 
         // Use the specified hardware for running the model. Default to CPU
-        when (currentDelegate) {
-            DELEGATE_CPU -> {
-                baseOptionBuilder.setDelegate(Delegate.CPU)
-            }
-            DELEGATE_GPU -> {
-                baseOptionBuilder.setDelegate(Delegate.GPU)
-            }
-        }
+        baseOptionBuilder.setDelegate(Delegate.GPU)
 
         baseOptionBuilder.setModelAssetPath(MP_FACE_LANDMARKER_TASK)
 
@@ -75,6 +67,9 @@ class FaceLandmarkerHelper(
             }
         }
 
+        minFaceDetectionConfidence = 0.1f;
+        minFaceTrackingConfidence = 0.1f;
+        minFacePresenceConfidence = 0.1f;
         try {
             val baseOptions = baseOptionBuilder.build()
             // Create an option builder with base options and specific
@@ -178,6 +173,13 @@ class FaceLandmarkerHelper(
                         " while not using RunningMode.LIVE_STREAM"
             )
         }
+        // 节流日志：每 ~30 次调用打一次（detectFace 在 FaceActivity 里只在
+        // frameCount % 3 == 0 时调用，所以 30 次大约对应 90 帧 ≈ 3 秒）。用来
+        // 确认 mediapipe 入口活着、isFrontCamera/rotation/分辨率有没有跑偏。
+        if ((frameId % 30L) == 0L) {
+            Log.i(TAG, "detectLiveStream tick frameId=$frameId src=${imageProxy.width}x${imageProxy.height}" +
+                    " rot=${imageProxy.imageInfo.rotationDegrees} isFrontCamera=$isFrontCamera")
+        }
         val frameTime = SystemClock.uptimeMillis()
 
         val currentFrameId = frameId++
@@ -197,24 +199,42 @@ class FaceLandmarkerHelper(
                 Bitmap.Config.ARGB_8888
             )
         imageProxy.use { bitmapBuffer.copyPixelsFromBuffer(imageProxy.planes[0].buffer) }
-        imageProxy.close()
+        //imageProxy.close()
 
+        // 重要：这里 *不* 对前置摄像头做 postScale(-1, 1)！理由如下：
+        //
+        // 我们的渲染策略是 —— bg 与 face 顶点 shader 末尾统一对 gl_Position.x
+        // 乘 (1 - 2*mirror_x) 做镜子翻转。bg 是直接采样 sensor 帧、然后 shader
+        // 末尾翻一次；face 顶点用的是 mediapipe 输出的归一化坐标，shader 末尾
+        // 也翻一次。两者只有同时基于"sensor 视角"做输入、再一起在 shader 末尾
+        // 翻一次，face 才能精确对齐 bg 上的脸。
+        //
+        // 如果在这里给 mediapipe 喂"已镜像"的 bitmap（旧实现），mediapipe 输出
+        // 的 landmark 就是"用户视角"坐标，再被 shader 翻一次 → face 实际上被
+        // 翻了两次，跟只翻一次的 bg 错位（通常会在屏幕另一半，看起来就是"face
+        // 完全没渲染"）。这正是我们最近调试看到的现象。
+        //
+        // mediapipe 对左右镜像不敏感（训练集本身覆盖各角度），sensor 视角下也
+        // 能稳定检测出 478 个 landmark，无需迎合"镜子视角"。因此 isFrontCamera
+        // 参数保留以备扩展，但当前不再据此修改输入图。
         val matrix = Matrix().apply {
-            // Rotate the frame received from the camera to be in the same direction as it'll be shown
             postRotate(imageProxy.imageInfo.rotationDegrees.toFloat())
-
-            // flip image if user use front camera
-            if (isFrontCamera) {
-                postScale(
-                    -1f,
-                    1f,
-                    imageProxy.width.toFloat(),
-                    imageProxy.height.toFloat()
-                )
-            }
         }
+        // 旧代码硬编码了 (640-480)/2 = 80 和 bitmapBuffer.height（=480），假设
+        // 相机帧是 640x480。在不同手机/不同 CameraX 配置下相机分辨率会变（比如
+        // 480x640 portrait sensor、1280x720 等），硬编码会越界裁切或丢一半画面。
+        //
+        // 改成：根据 imageProxy 的实际尺寸取中央 min(W,H) x min(W,H) 正方形作为
+        // mediapipe 输入。这与 bg.vert 的 UV 计算严格对齐 —— shader 那边也是从
+        // raw 帧的中央 min(W,H) 正方形采样，再按 rotation 旋转。两端语义一致才能
+        // 让 FaceLandmark 输出的归一化坐标 [0,1] 直接对应屏幕画布 NDC。
+        val srcW = imageProxy.width
+        val srcH = imageProxy.height
+        val side = minOf(srcW, srcH)
+        val cropX = (srcW - side) / 2
+        val cropY = (srcH - side) / 2
         val rotatedBitmap = Bitmap.createBitmap(
-            bitmapBuffer, (640-480)/2, 0, bitmapBuffer.height, bitmapBuffer.height,
+            bitmapBuffer, cropX, cropY, side, side,
             matrix, true
         )
 
@@ -246,37 +266,43 @@ class FaceLandmarkerHelper(
         val frameId = result.timestampMs()
         if( result.faceLandmarks().size > 0 ) {
             // 计算各种延时
-            val timings = frameTimings[frameId]
-            if (timings != null) {
-                val totalLatency = resultTime - timings.captureTime
-                val preprocessLatency = timings.preprocessEndTime - timings.preprocessStartTime
-                val detectionLatency = resultTime - timings.detectionStartTime
-                val captureToDetectionLatency = timings.detectionStartTime - timings.captureTime
-
-                Log.i("TimeLatency",
-                    "总延时: ${totalLatency}ms | " +
-                            "预处理: ${preprocessLatency}ms | " +
-                            "检测: ${detectionLatency}ms | " +
-                            "捕获到检测: ${captureToDetectionLatency}ms | " +
-                            "FPS: ${String.format("%.1f", currentFps)}"
-                )
-
+//            val timings = frameTimings[frameId]
+//            if (timings != null) {
+//                val totalLatency = resultTime - timings.captureTime
+//                val preprocessLatency = timings.preprocessEndTime - timings.preprocessStartTime
+//                val detectionLatency = resultTime - timings.detectionStartTime
+//                val captureToDetectionLatency = timings.detectionStartTime - timings.captureTime
+//
+//                Log.i("TimeLatency",
+//                    "总延时: ${totalLatency}ms | " +
+//                            "预处理: ${preprocessLatency}ms | " +
+//                            "检测: ${detectionLatency}ms | " +
+//                            "捕获到检测: ${captureToDetectionLatency}ms | " +
+//                            "FPS: ${String.format("%.1f", currentFps)}"
+//                )
+//
+//                val finishTimeMs = SystemClock.uptimeMillis()
+//                val inferenceTime = finishTimeMs - result.timestampMs()
+//                faceLandmarkerHelperListener?.onResults(
+//                    ResultBundle(
+//                        result,
+//                        inferenceTime, // 主要是检测时间
+//                        input.height,
+//                        input.width,
+//                    )
+//                )
+//            } else
+            //{
                 val finishTimeMs = SystemClock.uptimeMillis()
                 val inferenceTime = finishTimeMs - result.timestampMs()
-                faceLandmarkerHelperListener?.onResults(
-                    ResultBundle(
-                        result,
-                        inferenceTime, // 主要是检测时间
-                        input.height,
-                        input.width,
-                    )
-                )
-            } else {
-                val finishTimeMs = SystemClock.uptimeMillis()
-                val inferenceTime = finishTimeMs - result.timestampMs()
-                Log.i("TimeLatency",
-                    "总延时: ${inferenceTime}ms | "
-                )
+                hitResultCount++
+                if (hitResultCount % 30L == 1L) {
+                    // 节流：检测到人脸的频次。和 emptyResultCount 配合看就能知道
+                    // 命中率（hitResultCount / (hitResultCount + emptyResultCount)）。
+                    Log.i(TAG, "returnLivestreamResult: HIT count=$hitResultCount" +
+                            " landmarks=${result.faceLandmarks().firstOrNull()?.size}" +
+                            " input=${input.width}x${input.height} infer=${inferenceTime}ms")
+                }
                 faceLandmarkerHelperListener?.onResults(
                     ResultBundle(
                         result,
@@ -285,12 +311,22 @@ class FaceLandmarkerHelper(
                         input.width
                     )
                 )
-            }
+            //}
         }
         else {
+            // 节流：mediapipe 拿到 frame 但没识别出人脸时，每 30 次空结果打一行。
+            // 只要这条日志在刷，就说明 mediapipe pipeline 正常活着，断点在"喂进去
+            // 的图本身没有可识别的脸"——常见于 isFrontCamera 路径下输入图被翻坏。
+            emptyResultCount++
+            if (emptyResultCount % 30L == 1L) {
+                Log.w(TAG, "returnLivestreamResult: faceLandmarks empty (count=$emptyResultCount)" +
+                        " input=${input.width}x${input.height} ts=$frameId")
+            }
             faceLandmarkerHelperListener?.onEmpty()
         }
     }
+    private var emptyResultCount: Long = 0
+    private var hitResultCount: Long = 0
 
     // Return errors thrown during detection to this FaceLandmarkerHelper's
     // caller

app/src/main/java/com/hmwl/face_sdk/Frame.java

@@ -0,0 +1,27 @@
+package com.hmwl.face_sdk;
+
+import org.json.JSONObject;
+
+public class Frame {
+    public String name;
+    public float x;
+    public float y;
+    public Frame(String name, float x, float y)
+    {
+        this.name = name;
+        this.x = x;
+        this.y = y;
+    }
+    public JSONObject toJsonObject(){
+        try {
+            JSONObject jsonObject = new JSONObject();
+            jsonObject.put("name", name);
+            jsonObject.put("x", x);
+            jsonObject.put("y", y);
+            return jsonObject;
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+}

app/src/main/java/com/hmwl/face_sdk/InitArg.java

@@ -0,0 +1,30 @@
+package com.hmwl.face_sdk;
+import org.json.JSONObject;
+
+public class InitArg {
+    public int action_fps;
+    public float zoom;
+    public float r;
+    public float g;
+    public float b;
+    public float radius;
+    public float offset_x;
+    public float offset_y;
+    public String toJson() {
+        try {
+            JSONObject jsonObject = new JSONObject();
+            jsonObject.put("action_fps", action_fps);
+            jsonObject.put("zoom", zoom);
+            jsonObject.put("r", r);
+            jsonObject.put("g", g);
+            jsonObject.put("b", b);
+            jsonObject.put("radius", radius);
+            jsonObject.put("offset_x", offset_x);
+            jsonObject.put("offset_y", offset_y);
+            return jsonObject.toString();
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+}

app/src/main/java/com/hmwl/face_sdk/Motion.java

@@ -0,0 +1,33 @@
+package com.hmwl.face_sdk;
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.List;
+
+
+public class Motion {
+    public String name = "no";
+    public List<Frame> frames = new ArrayList<>();
+    public Motion(String name, List<Frame> frames)
+    {
+        this.name = name;
+        this.frames = frames;
+    }
+
+    public JSONObject toJsonObject() {
+        try {
+            JSONObject jsonObject = new JSONObject();
+            jsonObject.put("name", name);
+            JSONArray jframes = new JSONArray();
+            for(int i = 0; i < frames.size(); ++i){
+                jframes.put(frames.get(i).toJsonObject());
+            }
+            jsonObject.put("frames", jframes);
+            return jsonObject;
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+};

app/src/main/java/com/hmwl/face_sdk/MotionList.java

@@ -0,0 +1,28 @@
+package com.hmwl.face_sdk;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class MotionList {
+    public List<Motion> motions =  new ArrayList<>();
+    public JSONObject toJsonObject() {
+        try {
+            JSONObject jsonObject = new JSONObject();
+            JSONArray jMotions = new JSONArray();
+            for(int i = 0; i < motions.size(); ++i){
+                jMotions.put(motions.get(i).toJsonObject());
+            }
+            jsonObject.put("motions", jMotions);
+            return jsonObject;
+        } catch (Exception e) {
+            e.printStackTrace();
+            return new JSONObject();
+        }
+    }
+    public String toJsonString(){
+        return toJsonObject().toString();
+    }
+}

app/src/main/java/com/hmwl/sample/MainActivity.java

@@ -1,17 +0,0 @@
-package com.hmwl.sample;
-
-
-import android.os.Bundle;
-import com.hmwl.face.FaceActivity;
-
-public class MainActivity extends FaceActivity {
-    private static final String TAG = "MainActivity";
-
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState){
-        super.onCreate(savedInstanceState);
-
-    }
-
-}

app/src/test/java/com/hmwl/sample/ExampleUnitTest.java

@@ -1,17 +0,0 @@
-package com.hmwl.sample;
-
-import org.junit.Test;
-
-import static org.junit.Assert.*;
-
-/**
- * Example local unit test, which will execute on the development machine (host).
- *
- * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
- */
-public class ExampleUnitTest {
-    @Test
-    public void addition_isCorrect() {
-        assertEquals(4, 2 + 2);
-    }
-}

build.gradle

@@ -1,5 +1,19 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:8.3.2'
+    }
+}
+
 plugins {
-alias(libs.plugins.android.application) apply false
-    id 'org.jetbrains.kotlin.android' version '2.2.0' apply false
+    alias(libs.plugins.android.application) apply false
+    alias(libs.plugins.android.library) apply false
+    alias(libs.plugins.kotlin.android) apply false  // 添加这行
+    //alias(libs.plugins.kotlin.android) apply false
+    //id 'org.jetbrains.kotlin.android' version '2.2.0' apply false
 }

compile_shader.bat

@@ -0,0 +1,12 @@
+glslangValidator -V app/src/main/assets/shaders/bg.frag -o app/src/main/assets/shaders/bg.frag.spv
+glslangValidator -V app/src/main/assets/shaders/bg.vert -o app/src/main/assets/shaders/bg.vert.spv
+
+glslangValidator -V app/src/main/assets/shaders/texture.frag -o app/src/main/assets/shaders/texture.frag.spv
+glslangValidator -V app/src/main/assets/shaders/texture.vert -o app/src/main/assets/shaders/texture.vert.spv
+
+glslangValidator -V app/src/main/assets/shaders/simple_shader.frag -o app/src/main/assets/shaders/simple_shader.frag.spv
+glslangValidator -V app/src/main/assets/shaders/simple_shader.vert -o app/src/main/assets/shaders/simple_shader.vert.spv
+
+glslangValidator -V app/src/main/assets/shaders/texture_thick.frag -o app/src/main/assets/shaders/texture_thick.frag.spv
+rem glslangValidator -V app/src/main/assets/shaders/texture_thick.vert -o app/src/main/assets/shaders/texture_thick.vert.spv
+

example/.gitignore

@@ -0,0 +1 @@
+/build

example/build.gradle

@@ -0,0 +1,86 @@
+plugins {
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.kotlin.android)
+    //alias(libs.plugins.kotlin.android)
+}
+
+android {
+    namespace 'com.inewme.uvmirror'
+    compileSdk 36
+
+    defaultConfig {
+        applicationId "com.inewme.uvmirror.f20260127"
+        minSdk 29
+        targetSdk 36
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            signingConfig signingConfigs.debug
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
+    }
+
+    buildFeatures {
+        compose true
+    }
+
+    composeOptions {
+        kotlinCompilerExtensionVersion '1.5.1'
+    }
+    kotlinOptions {
+        jvmTarget = '17'
+    }
+//    kotlinOptions {
+//        jvmTarget = '17'
+//    }
+}
+
+dependencies {
+
+    implementation libs.appcompat
+    implementation libs.material
+    implementation libs.games.activity
+    implementation libs.core.ktx
+    implementation libs.androidx.core.ktx
+    testImplementation libs.junit
+    androidTestImplementation libs.ext.junit
+    androidTestImplementation libs.espresso.core
+
+    implementation project(':app')
+    // Jetpack Compose
+    implementation "androidx.compose.ui:ui:1.5.0"
+    implementation "androidx.compose.material3:material3:1.0.0"
+    implementation "androidx.compose.foundation:foundation:1.5.0"
+    implementation "androidx.compose.runtime:runtime:1.5.0"
+    implementation "androidx.activity:activity-compose:1.7.2" // �ؼ����ṩ setContent
+
+    implementation "androidx.compose.ui:ui-tooling:1.5.4"
+
+    def camerax_version = '1.4.2'
+    implementation "androidx.camera:camera-core:$camerax_version"
+    implementation "androidx.camera:camera-camera2:$camerax_version"
+    implementation "androidx.camera:camera-lifecycle:$camerax_version"
+    implementation "androidx.camera:camera-view:$camerax_version"
+
+    implementation 'com.google.protobuf:protobuf-javalite:3.21.12'
+    implementation 'com.google.android.datatransport:transport-runtime:3.1.9'
+    implementation 'com.google.android.datatransport:transport-backend-cct:3.1.9'
+
+    implementation 'com.google.flogger:flogger:0.7.4'
+    implementation 'com.google.flogger:flogger-system-backend:0.7.4'
+
+    implementation 'com.google.guava:guava:31.1-android'
+
+    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.8.7") // 提供 lifecycleScope
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:1.9.0")
+}

example/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

example/src/main/AndroidManifest.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Sample" >
+        <activity
+            android:name=".MainActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+
+            <meta-data
+                android:name="android.app.lib_name"
+                android:value="face_sdk" />
+        </activity>
+
+        <activity
+            android:name=".MakeupActivity"
+            android:exported="false"
+            android:screenOrientation="portrait"
+            android:configChanges="orientation|screenSize|screenLayout|keyboardHidden|keyboard|navigation|smallestScreenSize" />
+        <!-- MakeupActivity 继承 FaceActivity，face_sdk 渲染目前只支持竖屏。
+             configChanges 与 FaceActivity 保持一致，避免软键盘/导航栏触发重建。 -->
+    </application>
+
+</manifest>