save code

2025-09-10 18:45:17 +08:00
parent 9a71226b9c
commit fa787d1751
3 changed files with 220 additions and 33 deletions
@@ -0,0 +1,178 @@
+package com.khronos.vulkan_samples;
+
+
+import android.Manifest;
+import android.content.pm.PackageManager;
+import android.graphics.Color;
+import android.graphics.PixelFormat;
+import android.graphics.SurfaceTexture;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.Surface;
+import android.view.SurfaceView;
+import android.view.TextureView;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.camera.core.CameraSelector;
+import androidx.camera.core.Preview;
+import androidx.camera.core.SurfaceRequest;
+import androidx.camera.lifecycle.ProcessCameraProvider;
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
+
+import com.google.androidgamesdk.GameActivity;
+import com.google.common.util.concurrent.ListenableFuture;
+import java.util.concurrent.ExecutionException;
+
+public class VulkanTopActivity extends GameActivity {
+    private TextureView textureView; // 使用 TextureView 替代 PreviewView
+    private ProcessCameraProvider cameraProvider;
+    private void initCamera(){
+        // 创建 TextureView
+        textureView = new TextureView(this);
+        textureView.setLayoutParams(new ViewGroup.LayoutParams(
+                ViewGroup.LayoutParams.MATCH_PARENT,
+                ViewGroup.LayoutParams.MATCH_PARENT
+        ));
+
+        // 获取根视图并添加 TextureView 作为背景
+        ViewGroup rootView = (ViewGroup) getWindow().getDecorView();
+        rootView.addView(textureView, 0); // 添加到最底层
+
+        // 配置 Vulkan 视图透明度
+        setupVulkanView();
+
+        if (hasCameraPermission()) {
+            startCamera();
+        } else {
+            requestCameraPermission();
+        }
+    }
+
+    private void setupVulkanView() {
+        ViewGroup rootView = (ViewGroup) getWindow().getDecorView();
+
+        for (int i = 0; i < rootView.getChildCount(); i++) {
+            View child = rootView.getChildAt(i);
+            if (child instanceof SurfaceView && child != textureView) {
+                SurfaceView vulkanView = (SurfaceView) child;
+
+                // 关键设置：确保 Vulkan 视图在顶层且透明
+                vulkanView.setZOrderOnTop(true);
+                vulkanView.getHolder().setFormat(PixelFormat.TRANSPARENT);
+                vulkanView.setBackgroundColor(Color.TRANSPARENT);
+
+                // 确保它在最前面
+                vulkanView.bringToFront();
+                break;
+            }
+        }
+    }
+
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        String native_lib_name = getResources().getString(R.string.native_lib_name);
+        try {
+            System.loadLibrary(native_lib_name);
+        } catch (UnsatisfiedLinkError e) {
+            Toast.makeText(getApplicationContext(), "Native code library failed to load.", Toast.LENGTH_SHORT).show();
+        }
+        String[] argArray = new String[2];
+        argArray[0] = "sample";
+        argArray[1] = "hello_triangle";
+//        sendArgumentsToPlatform(argArray);
+        super.onCreate(savedInstanceState);
+
+        initCamera();
+
+        Log.i("MainActivity", "onCreate: ");
+    }
+
+    private boolean hasCameraPermission() {
+        return ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
+                == PackageManager.PERMISSION_GRANTED;
+    }
+
+    private void requestCameraPermission() {
+        ActivityCompat.requestPermissions(this,
+                new String[]{Manifest.permission.CAMERA},
+                REQUEST_CAMERA_PERMISSION);
+    }
+
+    private static final int REQUEST_CAMERA_PERMISSION = 1001;
+
+    private void startCamera() {
+        ListenableFuture<ProcessCameraProvider> cameraProviderFuture =
+                ProcessCameraProvider.getInstance(this);
+
+        cameraProviderFuture.addListener(() -> {
+            try {
+                cameraProvider = cameraProviderFuture.get();
+                Preview preview = new Preview.Builder().build();
+                CameraSelector cameraSelector = new CameraSelector.Builder()
+                        .requireLensFacing(CameraSelector.LENS_FACING_BACK)
+                        .build();
+
+                textureView.setSurfaceTextureListener(new TextureView.SurfaceTextureListener() {
+                    @Override
+                    public void onSurfaceTextureAvailable(@NonNull SurfaceTexture surfaceTexture, int width, int height) {
+                        Surface surface = new Surface(surfaceTexture);
+                        preview.setSurfaceProvider(request -> {
+                            request.provideSurface(surface, ContextCompat.getMainExecutor(VulkanTopActivity.this),
+                                    result -> {});
+                        });
+
+                        cameraProvider.bindToLifecycle(VulkanTopActivity.this, cameraSelector, preview);
+                    }
+
+                    @Override
+                    public void onSurfaceTextureSizeChanged(@NonNull SurfaceTexture surfaceTexture, int width, int height) {}
+
+                    @Override
+                    public boolean onSurfaceTextureDestroyed(@NonNull SurfaceTexture surfaceTexture) {
+                        return false;
+                    }
+
+                    @Override
+                    public void onSurfaceTextureUpdated(@NonNull SurfaceTexture surfaceTexture) {}
+                });
+
+            } catch (ExecutionException | InterruptedException e) {
+                Log.e("MainActivity", "Error starting camera: " + e.getMessage());
+            }
+        }, ContextCompat.getMainExecutor(this));
+    }
+
+
+    private static final int REQUEST_CODE_PERMISSIONS = 1001;
+    private static final String[] REQUIRED_PERMISSIONS = new String[]{Manifest.permission.CAMERA};
+    private static final String TAG = "MainActivity";
+
+    private boolean allPermissionsGranted() {
+        for (String permission : REQUIRED_PERMISSIONS) {
+            if (ContextCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        if (requestCode == REQUEST_CODE_PERMISSIONS) {
+            if (allPermissionsGranted()) {
+                startCamera();
+            } else {
+                Log.e(TAG, "Permissions not granted by the user.");
+                finish(); // Close the activity if permission is denied
+            }
+        }
+    }
+
+//    private native void sendArgumentsToPlatform(String[] args);
+}