save hair demo

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

@@ -5,12 +5,20 @@ layout (binding = 1) uniform sampler2D samplerColor;
 layout (location = 0) in vec2 inUV;
 layout (location = 1) in vec3 inNormal;
 
+layout(push_constant) uniform PushConstants {
+    float myValue;
+	float ux;
+	float uy;
+} pushConstants;
+
 
 layout (location = 0) out vec4 outFragColor;
 
 void main() 
 {
-	vec4 color = texture(samplerColor, inUV);
+    vec2 pos = vec2(pushConstants.ux/2048.f, pushConstants.uy/2048.f);
+    vec2 uv = pos + vec2(inUV.x/8.f, inUV.y/8.f);
+	vec4 color = texture(samplerColor, uv);
 
     outFragColor = color;
 

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

@@ -18,6 +18,8 @@ layout (location = 1) out vec3 outNormal;
 
 layout(push_constant) uniform PushConstants {
     float myValue;
+	float ux;
+	float uy;
 } pushConstants;
 
 out gl_PerVertex 

app/src/main/cpp/main.cpp

@@ -16,6 +16,7 @@ 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) {
     switch (cmd) {
@@ -149,22 +150,7 @@ Java_com_hmwl_face_1sdk_FaceActivity_SetCppInitArg(JNIEnv *env, jobject thiz, js
     }
     memcpy(g_InitArgString, nativeString, len);
 }
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_hmwl_face_1sdk_FaceActivity_ChangeStateCpp(JNIEnv *env, jobject thiz, jstring json) {
-    // TODO: implement ChangeStateCpp()
-    const char *nativeString = env->GetStringUTFChars(json, nullptr);
-    jsize len = env->GetStringUTFLength(json);
-    if(len > ArgLen)
-    {
-        aout << "ArgLen to long:" << len << std::endl;
-        return;
-    }
-    if(g_Application->isInited())
-    {
-        g_Application->changeMotion(nativeString);
-    }
-}
+
 extern "C"
 JNIEXPORT void JNICALL
 Java_com_hmwl_face_1sdk_FaceActivity_StopRunning(JNIEnv *env, jobject thiz) {
@@ -179,7 +165,7 @@ JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void* reserved) {
     return JNI_VERSION_1_6;
 }
 
-void CppCallback(const string& motion_type)
+void CppCallback()
 {
     JNIEnv* env = nullptr;
     bool needDetach = false;
@@ -210,7 +196,7 @@ void CppCallback(const string& motion_type)
     }
 
     // 2. 获取 OnLoadActionFinished 方法 ID（注意方法名大小写必须一致！）
-    jmethodID methodId = env->GetMethodID(callbackClass, "OnLoadActionFinished", "(Ljava/lang/String;)V");
+    jmethodID methodId = env->GetMethodID(callbackClass, "OnLoadMotionListFinished", "(Ljava/lang/String;)V");
     if (methodId == nullptr) {
         env->ExceptionDescribe(); // 打印异常
         env->ExceptionClear();
@@ -219,7 +205,7 @@ void CppCallback(const string& motion_type)
     }
 
     // 3. 构造 jstring 参数
-    jstring jResult = env->NewStringUTF(motion_type.c_str());
+    jstring jResult = env->NewStringUTF("ok");
 
     // 4. 调用 Java 回调
     env->CallVoidMethod(g_callback, methodId, jResult);
@@ -241,6 +227,63 @@ void CppCallback(const string& motion_type)
 }
 
 
+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
@@ -266,6 +309,64 @@ Java_com_hmwl_face_1sdk_FaceActivity_PreReadAction(JNIEnv *env, jobject thiz, js
         aout << "ArgLen to long:" << len << std::endl;
     }
 
-    std::string ret = g_Application->preReadyMotion(nativeString, CppCallback);
+    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) {
+    // TODO: implement ChangeMotionCpp()
+    const char *nativeString = env->GetStringUTFChars(json, nullptr);
+    jsize len = env->GetStringUTFLength(json);
+    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) {
+    g_Application->StopMotion();
+}
+extern "C"
+JNIEXPORT void JNICALL
+Java_com_hmwl_face_1sdk_FaceActivity_ResumeMotionNative(JNIEnv *env, jobject thiz) {
+    // TODO: implement ResumeMotionNative()
+    g_Application->ResumeMotion();
 }

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

@@ -4,7 +4,6 @@ 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;
@@ -31,7 +30,6 @@ 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";
@@ -50,6 +48,21 @@ 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);
@@ -126,6 +139,16 @@ public class FaceActivity extends GameActivity implements FaceLandmarkerHelper.L
         StopRunning();
     }
 
+    private native void StopMotionNative();
+    public void StopMotion(){
+        StopMotionNative();
+    }
+
+    private native void ResumeMotionNative();
+    public void ResumeMotion(){
+        ResumeMotionNative();
+    }
+
     private native void StopRunning();
 
     // Native 方法
@@ -267,24 +290,39 @@ public class FaceActivity extends GameActivity implements FaceLandmarkerHelper.L
 
     protected native void SetCppInitArg(String json);
 
-    protected void SetInitArg(String json)
+    public void SetInitArg(String json)
     {
         SetCppInitArg(json);
     }
 
-    public interface CallbackInterface {
-        void OnLoadActionFinished(String result);
+    public interface LoadMotionListFinishedCallback {
+        void OnLoadMotionListFinished(String result);
     }
 
-    protected native String PreReadAction(String motion, CallbackInterface callback);
-    protected String PreLoadAction(String json, CallbackInterface callback){
+    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 ChangeStateCpp(String json);
-    protected void ChangeMotion(String json){
-        Log.i("FaceActivity", "ChangeState:" + json);
-        ChangeStateCpp(json);
+    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

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/Motion.java

@@ -5,32 +5,29 @@ import org.json.JSONObject;
 import java.util.ArrayList;
 import java.util.List;
 
+
 public class Motion {
-    public String type = "no";
-    public List<String> png_names = new ArrayList<>();
+    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("type", type);
-            JSONArray ja = new JSONArray();
-            for(int i = 0; i < png_names.size(); ++i){
-                ja.put(png_names.get(i));
+            jsonObject.put("name", name);
+            JSONArray jframes = new JSONArray();
+            for(int i = 0; i < frames.size(); ++i){
+                jframes.put(frames.get(i).toJsonObject());
             }
-            jsonObject.put("png_names", ja);
+            jsonObject.put("frames", jframes);
             return jsonObject;
         } catch (Exception e) {
             e.printStackTrace();
             return null;
         }
     }
-
-    public String toJson() {
-        try {
-            return toJsonObject().toString();
-        } 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();
+    }
+}

compile_shader.bat

@@ -4,8 +4,9 @@ glslangValidator -V app/src/main/assets/shaders/bg.vert -o app/src/main/assets/s
 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/texture_thick.frag -o app/src/main/assets/shaders/texture_thick.frag.spv
-glslangValidator -V app/src/main/assets/shaders/texture_thick.vert -o app/src/main/assets/shaders/texture_thick.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/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/build.gradle

@@ -9,7 +9,7 @@ android {
     compileSdk 36
 
     defaultConfig {
-        applicationId "com.inewme.uvmirror.f20251129"
+        applicationId "com.inewme.uvmirror.f20260420"
         minSdk 30
         targetSdk 36
         versionCode 1
@@ -80,4 +80,7 @@ dependencies {
     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")
 }