Merge pull request 'debug0423' (#1) from debug0423 into hd_motion

Reviewed-on: http://43.143.205.217:3000/xsl/face_sdk/pulls/1

.gitignore

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

CMakeLists.txt

@@ -26,6 +26,8 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Android")
         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
                 vulkan/AppBase.h
                 vulkan/AppBase.cpp
                 vulkan/Application.h

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
+```

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

@@ -3,12 +3,42 @@
 #include <game-activity/native_app_glue/android_native_app_glue.h>
 #include <game-activity/GameActivity.h>
 #include "AndroidOut.h"
+#include "DebugLog.h"
 #include "FaceApp.h"
 #include <android/asset_manager.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <atomic>
 #include <chrono>
 #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;
@@ -19,23 +49,36 @@ 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()");
+            g_Application->onWindowInit();
+            DebugLog::log("handle_cmd APP_CMD_INIT_WINDOW: onWindowInit() returned, isInited=%d",
+                          (int)g_Application->isInited());
             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);
+    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;
@@ -76,11 +119,41 @@ void android_main(struct android_app *pApp) {
                     }
             }
         }
+        // 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())
         {
             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);
+            }
+
+            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;
@@ -92,9 +165,11 @@ void android_main(struct android_app *pApp) {
             this_thread::sleep_for(chrono::milliseconds((35-function_time)));
         }
     } while (!pApp->destroyRequested);
+    DebugLog::log("android_main: destroyRequested, running cleanup");
     //application.cleanup();
     g_Application->cleanupSecondInit();
     g_Application->clearnSecondFaceApp();
+    DebugLog::log("android_main: exit");
 }
 }
 
@@ -114,6 +189,12 @@ Java_com_hmwl_face_1sdk_FaceActivity_processImageNative(JNIEnv *env, jobject thi
                                                         jint width, jint height, jint format,
                                                         jint row_stride, jint pixel_stride,
                                                         jint rotation) {
+    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",
+                      (unsigned long long)n, dbg_tid(), width, height);
+    }
     // TODO: implement processImageNative()
     uint8_t* imageData = static_cast<uint8_t*>(env->GetDirectBufferAddress(buffer));
     jlong capacity = env->GetDirectBufferCapacity(buffer);
@@ -130,6 +211,12 @@ extern "C"
 JNIEXPORT void JNICALL
 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;
+    if (n == 1 || n % 300 == 0) {
+        DebugLog::log("passDataToNative #%llu tid=%d point_count=%d w=%d h=%d",
+                      (unsigned long long)n, dbg_tid(), point_count, width, height);
+    }
     // TODO: implement passDataToNative()
     float* pos = static_cast<float*>(env->GetDirectBufferAddress(buffer));
 
@@ -145,9 +232,9 @@ Java_com_hmwl_face_1sdk_FaceActivity_passDataToNative(JNIEnv *env, jobject thiz,
 extern "C"
 JNIEXPORT void JNICALL
 Java_com_hmwl_face_1sdk_FaceActivity_SetCppInitArg(JNIEnv *env, jobject thiz, jstring json) {
-    // TODO: implement SetCppInitArg()
     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;
@@ -159,6 +246,7 @@ Java_com_hmwl_face_1sdk_FaceActivity_SetCppInitArg(JNIEnv *env, jobject thiz, js
 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();
 }
 
@@ -294,6 +382,7 @@ 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);
@@ -342,9 +431,11 @@ extern "C"
 JNIEXPORT void JNICALL
 Java_com_hmwl_face_1sdk_FaceActivity_ChangeMotionCpp(JNIEnv *env, jobject thiz, jstring json,
                                                      jobject callback, jboolean loop) {
-    // TODO: implement ChangeMotionCpp()
     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;
@@ -367,11 +458,12 @@ Java_com_hmwl_face_1sdk_FaceActivity_ChangeMotionCpp(JNIEnv *env, jobject thiz,
 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) {
-    // TODO: implement ResumeMotionNative()
+    DebugLog::log("JNI ResumeMotionNative tid=%d", dbg_tid());
     g_Application->ResumeMotion();
 }

vulkan/Application.cpp

@@ -9,8 +9,47 @@
 	#include <game-activity/GameActivity.h>
     #include <vulkan/vulkan_android.h>
 	#include "../app/src/main/cpp/AndroidOut.h"
+	#include "../app/src/main/cpp/DebugLog.h"
 #endif
 
+#ifdef _WIN32
+#define FACE_DBG_LOG(...) ((void)0)
+#else
+#define FACE_DBG_LOG(...) DebugLog::log(__VA_ARGS__)
+#endif
+
+static const char* VkResultStr(VkResult r) {
+	switch (r) {
+		case VK_SUCCESS:                        return "VK_SUCCESS";
+		case VK_NOT_READY:                      return "VK_NOT_READY";
+		case VK_TIMEOUT:                        return "VK_TIMEOUT";
+		case VK_EVENT_SET:                      return "VK_EVENT_SET";
+		case VK_EVENT_RESET:                    return "VK_EVENT_RESET";
+		case VK_INCOMPLETE:                     return "VK_INCOMPLETE";
+		case VK_SUBOPTIMAL_KHR:                 return "VK_SUBOPTIMAL_KHR";
+		case VK_ERROR_OUT_OF_HOST_MEMORY:       return "VK_ERROR_OUT_OF_HOST_MEMORY";
+		case VK_ERROR_OUT_OF_DEVICE_MEMORY:     return "VK_ERROR_OUT_OF_DEVICE_MEMORY";
+		case VK_ERROR_INITIALIZATION_FAILED:    return "VK_ERROR_INITIALIZATION_FAILED";
+		case VK_ERROR_DEVICE_LOST:              return "VK_ERROR_DEVICE_LOST";
+		case VK_ERROR_MEMORY_MAP_FAILED:        return "VK_ERROR_MEMORY_MAP_FAILED";
+		case VK_ERROR_LAYER_NOT_PRESENT:        return "VK_ERROR_LAYER_NOT_PRESENT";
+		case VK_ERROR_EXTENSION_NOT_PRESENT:    return "VK_ERROR_EXTENSION_NOT_PRESENT";
+		case VK_ERROR_FEATURE_NOT_PRESENT:      return "VK_ERROR_FEATURE_NOT_PRESENT";
+		case VK_ERROR_INCOMPATIBLE_DRIVER:      return "VK_ERROR_INCOMPATIBLE_DRIVER";
+		case VK_ERROR_TOO_MANY_OBJECTS:         return "VK_ERROR_TOO_MANY_OBJECTS";
+		case VK_ERROR_FORMAT_NOT_SUPPORTED:     return "VK_ERROR_FORMAT_NOT_SUPPORTED";
+		case VK_ERROR_FRAGMENTED_POOL:          return "VK_ERROR_FRAGMENTED_POOL";
+		case VK_ERROR_OUT_OF_DATE_KHR:          return "VK_ERROR_OUT_OF_DATE_KHR";
+		case VK_ERROR_SURFACE_LOST_KHR:         return "VK_ERROR_SURFACE_LOST_KHR";
+		case VK_ERROR_NATIVE_WINDOW_IN_USE_KHR: return "VK_ERROR_NATIVE_WINDOW_IN_USE_KHR";
+		case VK_ERROR_OUT_OF_POOL_MEMORY:       return "VK_ERROR_OUT_OF_POOL_MEMORY";
+		case VK_ERROR_INVALID_EXTERNAL_HANDLE:  return "VK_ERROR_INVALID_EXTERNAL_HANDLE";
+		case VK_ERROR_FRAGMENTATION:            return "VK_ERROR_FRAGMENTATION";
+		case VK_ERROR_UNKNOWN:                  return "VK_ERROR_UNKNOWN";
+		default:                                return "VK_UNMAPPED_VALUE";
+	}
+}
+
 
 
 void Application::initWindow()
@@ -109,6 +148,105 @@ void Application::cleanupSecondInit()
 	_sceondInited = false;
 }
 
+void Application::cleanupForWindowLost()
+{
+	if (!_applicationInited || !_sceondInited) {
+		FACE_DBG_LOG("cleanupForWindowLost: skip (_applicationInited=%d _sceondInited=%d)",
+		             (int)_applicationInited, (int)_sceondInited);
+		return;
+	}
+	FACE_DBG_LOG("cleanupForWindowLost: begin (imageCount=%zu MAX_FRAMES_IN_FLIGHT=%d)",
+	             swapChainImages.size(), MAX_FRAMES_IN_FLIGHT);
+
+	// Block until GPU is no longer using any of the resources we are about
+	// to destroy. Anything weaker than this risks hitting VK_ERROR_DEVICE_LOST
+	// on drivers that don't tolerate destroying in-flight resources.
+	vkDeviceWaitIdle(device);
+
+	for (auto framebuffer : swapChainFramebuffers) {
+		if (framebuffer != VK_NULL_HANDLE) {
+			vkDestroyFramebuffer(device, framebuffer, nullptr);
+		}
+	}
+	swapChainFramebuffers.clear();
+
+	for (auto imageView : swapChainImageViews) {
+		if (imageView != VK_NULL_HANDLE) {
+			vkDestroyImageView(device, imageView, nullptr);
+		}
+	}
+	swapChainImageViews.clear();
+
+	// Free the command buffers allocated from commandPool. The pool itself is
+	// kept alive so textures/staging uploads that run concurrently off the
+	// render thread (via commandPool_ex) aren't disrupted.
+	if (!commandBuffers.empty()) {
+		vkFreeCommandBuffers(device, commandPool,
+		                     (uint32_t)commandBuffers.size(), commandBuffers.data());
+		commandBuffers.clear();
+	}
+
+	for (size_t i = 0; i < imageAvailableSemaphores.size(); ++i) {
+		if (imageAvailableSemaphores[i] != VK_NULL_HANDLE) {
+			vkDestroySemaphore(device, imageAvailableSemaphores[i], nullptr);
+		}
+	}
+	imageAvailableSemaphores.clear();
+	for (size_t i = 0; i < renderFinishedSemaphores.size(); ++i) {
+		if (renderFinishedSemaphores[i] != VK_NULL_HANDLE) {
+			vkDestroySemaphore(device, renderFinishedSemaphores[i], nullptr);
+		}
+	}
+	renderFinishedSemaphores.clear();
+	for (size_t i = 0; i < inFlightFences.size(); ++i) {
+		if (inFlightFences[i] != VK_NULL_HANDLE) {
+			vkDestroyFence(device, inFlightFences[i], nullptr);
+		}
+	}
+	inFlightFences.clear();
+	imagesInFlight.clear();
+
+	if (swapChain != VK_NULL_HANDLE) {
+		vkDestroySwapchainKHR(device, swapChain, nullptr);
+		swapChain = VK_NULL_HANDLE;
+	}
+	swapChainImages.clear();
+
+	if (surface != VK_NULL_HANDLE) {
+		vkDestroySurfaceKHR(instance, surface, nullptr);
+		surface = VK_NULL_HANDLE;
+	}
+
+	currentFrame = 0;
+	_sceondInited = false;
+	FACE_DBG_LOG("cleanupForWindowLost: done");
+}
+
+void Application::reinitForNewWindow()
+{
+	if (!_applicationInited) {
+		FACE_DBG_LOG("reinitForNewWindow: skip, _applicationInited=0 (must go through initVulkan first)");
+		return;
+	}
+	if (_sceondInited) {
+		FACE_DBG_LOG("reinitForNewWindow: skip, already _sceondInited=1");
+		return;
+	}
+	FACE_DBG_LOG("reinitForNewWindow: begin");
+
+	createSurface();
+	createSwapChain();
+	createImageViews();
+	createFramebuffers();
+	createCommandBuffer();
+	createSyncObjects();
+
+	_sceondInited = true;
+	FACE_DBG_LOG("reinitForNewWindow: done (imageCount=%zu extent=%ux%u MAX_FRAMES_IN_FLIGHT=%d)",
+	             swapChainImages.size(), swapChainExtent.width, swapChainExtent.height,
+	             MAX_FRAMES_IN_FLIGHT);
+}
+
 
 
 void Application::createImageViews() {
@@ -545,13 +683,30 @@ void Application::render(VkCommandBuffer commandBuffer, long long frameTime)
 
 void Application::drawFrame(long long frameTime)
 {
+	static uint64_t s_drawFrameCount = 0;
+	++s_drawFrameCount;
+
 	// 1. 等待前一帧完成
-	vkWaitForFences(device, 1, &inFlightFences[currentFrame], VK_TRUE, UINT64_MAX);
+	VkResult waitRes = vkWaitForFences(device, 1, &inFlightFences[currentFrame], VK_TRUE, UINT64_MAX);
+	if (waitRes != VK_SUCCESS) {
+#ifndef _WIN32
+		DebugLog::log_throttled("drawFrame.waitFences",
+		             "drawFrame[%llu] vkWaitForFences -> %d (%s) currentFrame=%u",
+		             (unsigned long long)s_drawFrameCount,
+		             (int)waitRes, VkResultStr(waitRes), currentFrame);
+#endif
+	}
 
 	// 2. 获取交换链图像
 	uint32_t imageIndex;
 	VkResult result = vkAcquireNextImageKHR(device, swapChain, UINT64_MAX, imageAvailableSemaphores[currentFrame], VK_NULL_HANDLE, &imageIndex);
 	if (result != VK_SUCCESS) {
+#ifndef _WIN32
+		DebugLog::log_throttled("drawFrame.acquire",
+		             "drawFrame[%llu] vkAcquireNextImageKHR -> %d (%s) currentFrame=%u",
+		             (unsigned long long)s_drawFrameCount,
+		             (int)result, VkResultStr(result), currentFrame);
+#endif
 		throw std::runtime_error("failed to acquire swap chain image!");
 	}
 
@@ -582,7 +737,15 @@ void Application::drawFrame(long long frameTime)
 	submitInfo.signalSemaphoreCount = 1;
 	submitInfo.pSignalSemaphores = signalSemaphores;
 
-	if (vkQueueSubmit(graphicsQueue, 1, &submitInfo, inFlightFences[currentFrame]) != VK_SUCCESS) {
+	VkResult submitRes = vkQueueSubmit(graphicsQueue, 1, &submitInfo, inFlightFences[currentFrame]);
+	if (submitRes != VK_SUCCESS) {
+#ifndef _WIN32
+		DebugLog::log_throttled("drawFrame.submit",
+		             "drawFrame[%llu] vkQueueSubmit -> %d (%s) currentFrame=%u imageIndex=%u",
+		             (unsigned long long)s_drawFrameCount,
+		             (int)submitRes, VkResultStr(submitRes),
+		             currentFrame, imageIndex);
+#endif
 		throw std::runtime_error("failed to submit draw command buffer!");
 	}
 	// 7. 呈现图像
@@ -597,6 +760,13 @@ void Application::drawFrame(long long frameTime)
 	result = vkQueuePresentKHR(presentQueue, &presentInfo);
 
 	if (result != VK_SUCCESS) {
+#ifndef _WIN32
+		DebugLog::log_throttled("drawFrame.present",
+		             "drawFrame[%llu] vkQueuePresentKHR -> %d (%s) currentFrame=%u imageIndex=%u",
+		             (unsigned long long)s_drawFrameCount,
+		             (int)result, VkResultStr(result),
+		             currentFrame, imageIndex);
+#endif
 		throw std::runtime_error("failed to present swap chain image!");
 	}
 

vulkan/Application.h

@@ -81,6 +81,17 @@ public:
     bool _applicationInited = false;
     void cleanupSecondInit();
 
+    // Tear down only the window-dependent Vulkan objects so we can survive an
+    // Android APP_CMD_TERM_WINDOW (screen off / background / rotate).
+    // Keeps renderPass / pipelines / VMA / textures / FaceApp resources intact,
+    // so pipelines created by FaceApp remain valid for the new swapchain.
+    // Caller MUST hold any app-level mutexes that serialize JNI -> Vulkan access.
+    void cleanupForWindowLost();
+
+    // Rebuild the window-dependent Vulkan objects torn down above.
+    // Safe to call only after cleanupForWindowLost().
+    void reinitForNewWindow();
+
 protected:
     void loadTexture(std::string path, Texture& tex, bool srgb, VkCommandPool pool);
     void loadTexture(std::vector<unsigned char>& image_data, size_t image_size, int w, int h, Texture& tex, bool srgb, VkCommandPool pool, std::string path);

vulkan/FaceApp.cpp

@@ -6,6 +6,13 @@
 #include <vector>
 #include <mutex>
 
+#ifndef _WIN32
+#include "../app/src/main/cpp/DebugLog.h"
+#define FACE_DBG_LOG(...) DebugLog::log(__VA_ARGS__)
+#else
+#define FACE_DBG_LOG(...) ((void)0)
+#endif
+
 
 
 FaceApp* FaceApp::faceIns = nullptr;
@@ -25,11 +32,14 @@ FaceApp::~FaceApp()
 
 void FaceApp::Stop()
 {
+	FACE_DBG_LOG("FaceApp::Stop called (_running=%d worker_joinable=%d)",
+	             (int)_running, (int)worker_.joinable());
 	_running = false;
 	if(worker_.joinable())
 	{
 		worker_.join();
 	}
+	FACE_DBG_LOG("FaceApp::Stop done");
 }
 
 void ReceiveFacePoint(float* pos, int pointCount, int width, int height)
@@ -772,6 +782,11 @@ void FaceApp::createVmaAllocator()
 
 void FaceApp::initVulkan()
 {
+	static int s_initVulkanCallCount = 0;
+	++s_initVulkanCallCount;
+	FACE_DBG_LOG("FaceApp::initVulkan enter, call#%d _applicationInited=%d _faceAppInited=%d _secondfaceAppInited=%d",
+	             s_initVulkanCallCount, (int)_applicationInited, (int)_faceAppInited, (int)_secondfaceAppInited);
+
 	Application::initVulkan();
     
 	if (!_faceAppInited)
@@ -839,18 +854,77 @@ void FaceApp::initVulkan()
 		_playMotion = true;
 		_secondfaceAppInited = true;
 	}
+
+	FACE_DBG_LOG("FaceApp::initVulkan exit, call#%d _applicationInited=%d _faceAppInited=%d _secondfaceAppInited=%d",
+	             s_initVulkanCallCount, (int)_applicationInited, (int)_faceAppInited, (int)_secondfaceAppInited);
 }
 
 void FaceApp::clearnSecondFaceApp()
 {
+	FACE_DBG_LOG("FaceApp::clearnSecondFaceApp: _secondfaceAppInited %d -> 0",
+	             (int)_secondfaceAppInited);
 	_secondfaceAppInited = false;
 }
 
 void FaceApp::Start()
 {
+	FACE_DBG_LOG("FaceApp::Start: _running %d -> 1", (int)_running);
 	_running = true;
 }
 
+void FaceApp::onWindowLost()
+{
+	FACE_DBG_LOG("FaceApp::onWindowLost enter _applicationInited=%d _faceAppInited=%d _sceondInited=%d _secondfaceAppInited=%d _running=%d",
+	             (int)_applicationInited, (int)_faceAppInited, (int)_sceondInited,
+	             (int)_secondfaceAppInited, (int)_running);
+
+	// Stop the render loop from touching Vulkan while we tear down.
+	_running = false;
+
+	// Serialize against JNI callbacks that may concurrently submit GPU work
+	// via commandPool / commandPool_ex (processImageNative -> update texture,
+	// passDataToNative -> update vertex buffer, changeMotionList).
+	std::unique_lock<std::mutex> lk_point(mtx_point);
+	std::unique_lock<std::mutex> lk_motion(changeMotionMtx);
+	std::unique_lock<std::mutex> lk_tex(createTextureMtx);
+
+	Application::cleanupForWindowLost();
+	_secondfaceAppInited = false;
+
+	FACE_DBG_LOG("FaceApp::onWindowLost done");
+}
+
+void FaceApp::onWindowInit()
+{
+	FACE_DBG_LOG("FaceApp::onWindowInit enter _applicationInited=%d _faceAppInited=%d _sceondInited=%d _secondfaceAppInited=%d",
+	             (int)_applicationInited, (int)_faceAppInited, (int)_sceondInited,
+	             (int)_secondfaceAppInited);
+
+	if (!_applicationInited) {
+		// First-time path: go through the full initVulkan pipeline.
+		initVulkan();
+	} else {
+		// Recovery path after an earlier onWindowLost. Rebuild only the
+		// window-dependent Vulkan objects; keep renderPass / pipelines /
+		// FaceApp GPU resources intact.
+		std::unique_lock<std::mutex> lk_point(mtx_point);
+		std::unique_lock<std::mutex> lk_motion(changeMotionMtx);
+		std::unique_lock<std::mutex> lk_tex(createTextureMtx);
+
+		Application::reinitForNewWindow();
+
+		if (!_secondfaceAppInited) {
+			_secondfaceAppInited = true;
+			_playMotion = true;
+			_running = true;
+		}
+	}
+
+	FACE_DBG_LOG("FaceApp::onWindowInit done _applicationInited=%d _faceAppInited=%d _sceondInited=%d _secondfaceAppInited=%d _running=%d",
+	             (int)_applicationInited, (int)_faceAppInited, (int)_sceondInited,
+	             (int)_secondfaceAppInited, (int)_running);
+}
+
 void FaceApp::update_uniform_buffers()
 {
 	uint32_t width = 480;
@@ -1325,6 +1399,7 @@ void FaceApp::cleanupResources(VkDevice device, VmaAllocator allocator) {
 
 void FaceApp::cleanup()
 {
+	FACE_DBG_LOG("FaceApp::cleanup enter");
 	vkDeviceWaitIdle(device);
 
 	if (uniform_buffer_mapped != nullptr)
@@ -1360,7 +1435,7 @@ void FaceApp::cleanup()
 	//	allocator = VK_NULL_HANDLE;
 	//}
 
-	
+	FACE_DBG_LOG("FaceApp::cleanup done");
 }
 
 
@@ -1466,6 +1541,8 @@ void FaceApp::drawFrame(long long frameTime)
 
 string FaceApp::preLoadMotionList(string motion_list_str, Callback callback)
 {
+	FACE_DBG_LOG("FaceApp::preLoadMotionList called str_len=%zu _isLoadMotion=%d",
+	             motion_list_str.size(), (int)_isLoadMotion);
 	if (_isLoadMotion)
 	{
 		return "failue load not finished";
@@ -1481,11 +1558,13 @@ string FaceApp::preLoadMotionList(string motion_list_str, Callback callback)
 		worker_.join();
 	}
 	worker_ = std::thread(&FaceApp::loadMotionThread, this);
+	FACE_DBG_LOG("FaceApp::preLoadMotionList worker_ started, todo_count=%zu", _curLoadMotionList.size());
 	return "ok";
 }
 
 void FaceApp::loadMotionThread() 
 {
+	FACE_DBG_LOG("FaceApp::loadMotionThread enter, todo_count=%zu", _curLoadMotionList.size());
 	while (!isInited())
 	{
 		std::this_thread::sleep_for(std::chrono::milliseconds(50));
@@ -1546,6 +1625,7 @@ void FaceApp::loadMotionThread()
 //	}
 	update_descriptor_set(m_texs_left, m_descriptor_sets_left);
 	_isLoadMotion = false;
+	FACE_DBG_LOG("FaceApp::loadMotionThread done, loaded_total=%zu", motion_list_map.size());
 	_callback_loadfinish();
 }
 
@@ -1557,6 +1637,9 @@ Motion FaceApp::getMotionByName(string name)
 
 void FaceApp::changeMotionList(vector<string> motions, AnimationFinishedCallback callback, bool loop)
 {
+	DebugLog::log_throttled("FaceApp.changeMotionList",
+	             "FaceApp::changeMotionList called count=%zu loop=%d _isLoadMotion=%d",
+	             motions.size(), (int)loop, (int)_isLoadMotion);
 	if (_isLoadMotion)
 	{
 		return;
@@ -1608,10 +1691,12 @@ void FaceApp::changeMotionList(vector<string> motions, AnimationFinishedCallback
 }
 
 void FaceApp::StopMotion() {
+	FACE_DBG_LOG("FaceApp::StopMotion: _playMotion %d -> 0", (int)_playMotion);
 	_playMotion = false;
 }
 
 void FaceApp::ResumeMotion() {
+	FACE_DBG_LOG("FaceApp::ResumeMotion: _playMotion %d -> 1", (int)_playMotion);
 	_playMotion = true;
 }
 

vulkan/FaceApp.h

@@ -182,6 +182,17 @@ public:
     void clearnSecondFaceApp();
 	void Start();
     void Stop();
+
+    // Called from main thread in response to APP_CMD_TERM_WINDOW.
+    // Serializes against JNI callbacks (processImageNative / passDataToNative /
+    // changeMotionList) by taking all three FaceApp mutexes + createTextureMtx,
+    // then tears down window-dependent Vulkan objects via Application.
+    void onWindowLost();
+
+    // Called from main thread in response to APP_CMD_INIT_WINDOW.
+    // Does the full first-time initVulkan() on the very first call, and a
+    // lightweight swapchain/surface rebuild on subsequent calls.
+    void onWindowInit();
     void loadMotionThread();
     std::thread worker_;
     bool _isLoadMotion = false;