发送摄像头数据给c++

app/android/java/com/khronos/vulkan_samples/MainActivity.java

@@ -17,7 +17,10 @@ import android.widget.FrameLayout;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
+import androidx.camera.core.AspectRatio;
 import androidx.camera.core.CameraSelector;
+import androidx.camera.core.ImageAnalysis;
+import androidx.camera.core.ImageProxy;
 import androidx.camera.core.Preview;
 import androidx.camera.core.SurfaceRequest;
 import androidx.camera.lifecycle.ProcessCameraProvider;
@@ -26,38 +29,16 @@ import androidx.core.content.ContextCompat;
 
 import com.google.androidgamesdk.GameActivity;
 import com.google.common.util.concurrent.ListenableFuture;
+
+import java.nio.ByteBuffer;
 import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
 
 public class MainActivity extends GameActivity {
-    private TextureView textureView; // 使用 TextureView 替代 PreviewView
     private ProcessCameraProvider cameraProvider;
-    private FrameLayout containerLayout;
     private void initCamera(){
-        // 获取 GameActivity 的根视图
-        ViewGroup rootView = (ViewGroup) getWindow().getDecorView();
-
-        // 创建容器布局
-        containerLayout = new FrameLayout(this);
-        containerLayout.setLayoutParams(new ViewGroup.LayoutParams(
-                ViewGroup.LayoutParams.MATCH_PARENT,
-                ViewGroup.LayoutParams.MATCH_PARENT
-        ));
-
-        // 创建 TextureView 用于摄像头预览
-        textureView = new TextureView(this);
-        textureView.setLayoutParams(new ViewGroup.LayoutParams(
-                ViewGroup.LayoutParams.MATCH_PARENT,
-                ViewGroup.LayoutParams.MATCH_PARENT
-        ));
-
-        // 将 TextureView 添加到容器
-        containerLayout.addView(textureView);
-
-        // 将容器添加到根视图的底部（作为背景）
-        //rootView.addView(containerLayout); // 添加到索引0（最底层）
-        rootView.addView(containerLayout, 0);
-
-
+        backgroundExecutor = Executors.newSingleThreadExecutor();
         if (hasCameraPermission()) {
             startCamera();
         } else {
@@ -76,7 +57,7 @@ public class MainActivity extends GameActivity {
         }
         String[] argArray = new String[2];
         argArray[0] = "sample";
-        argArray[1] = "hello_triangle";
+        argArray[1] = "texture_loading";//"hello_triangle";
         sendArgumentsToPlatform(argArray);
         super.onCreate(savedInstanceState);
 
@@ -97,6 +78,8 @@ public class MainActivity extends GameActivity {
     }
 
     private static final int REQUEST_CAMERA_PERMISSION = 1001;
+    ImageAnalysis imageAnalyzer;
+    ExecutorService backgroundExecutor;
 
     private void startCamera() {
         ListenableFuture<ProcessCameraProvider> cameraProviderFuture =
@@ -106,26 +89,32 @@ public class MainActivity extends GameActivity {
             try {
                 cameraProvider = cameraProviderFuture.get();
 
-                Preview preview = new Preview.Builder().build();
-
                 CameraSelector cameraSelector = new CameraSelector.Builder()
-                        .requireLensFacing(CameraSelector.LENS_FACING_BACK)
+                        .requireLensFacing(CameraSelector.LENS_FACING_FRONT)
                         .build();
 
-                // 使用 TextureView 的 SurfaceTexture
-                SurfaceTexture surfaceTexture = textureView.getSurfaceTexture();
-                if (surfaceTexture != null) {
-                    Surface surface = new Surface(surfaceTexture);
-                    preview.setSurfaceProvider(new Preview.SurfaceProvider() {
+                imageAnalyzer = new ImageAnalysis.Builder()
+                        .setTargetAspectRatio(AspectRatio.RATIO_4_3)
+                        .setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST)
+                        .setOutputImageFormat(ImageAnalysis.OUTPUT_IMAGE_FORMAT_RGBA_8888)
+                        .build();
+
+
+                imageAnalyzer.setAnalyzer(backgroundExecutor, new ImageAnalysis.Analyzer() {
+
                     @Override
-                        public void onSurfaceRequested(@NonNull SurfaceRequest request) {
-                            request.provideSurface(surface, ContextCompat.getMainExecutor(MainActivity.this),
-                                    result -> {});
+                    public void analyze(@NonNull ImageProxy image) {
+                        try {
+                            Log.d("Camera", "Received image: " + image.getWidth() + "x" + image.getHeight());
+                            processImageForVulkan(image);
+                        } finally {
+                            image.close(); // 确保在这里关闭
+                            Log.d("Camera", "Image closed, ready for next frame");
+                        }
                     }
                 });
-                }
 
-                cameraProvider.bindToLifecycle(this, cameraSelector, preview);
+                cameraProvider.bindToLifecycle(this, cameraSelector, imageAnalyzer);
 
             } catch (ExecutionException | InterruptedException e) {
                 Log.e("MainActivity", "Error starting camera: " + e.getMessage());
@@ -133,6 +122,33 @@ public class MainActivity extends GameActivity {
         }, ContextCompat.getMainExecutor(this));
     }
 
+    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
+            processImageNative(buffer, width, height, format,
+                    rowStride, pixelStride, image.getImageInfo().getRotationDegrees());
+        }
+    }
+
+    // Native 方法
+    private native void processImageNative(ByteBuffer buffer, int width, int height,
+                                           int format, int rowStride, int pixelStride,
+                                           int rotation);
+
 
     private static final int REQUEST_CODE_PERMISSIONS = 1001;
     private static final String[] REQUIRED_PERMISSIONS = new String[]{Manifest.permission.CAMERA};