做dw网站图片怎么下载游戏推广员

很莫名其妙的，前摄默认镜像，原来是为了前摄拍字体正确显示，比如自拍，前摄拍摄的人像虽左右镜像了，但如果后面有字牌显示，字体会显示正常而不是翻转。但现在需求是满足普遍的前摄原生代码不带镜像修改，需要把预览和保存的图片进行左右翻转，那么就需要找到相应的修改位置才行。

以下就是相关修改点：直接修复前摄镜像显示 即可正常显示

充分利用此方法：

PhotoModeHelper.rotateAndMirror(bitmap, orientation, true);

和

matrix.postScale(-1, 1);

1./vendor/mediatek/proprietary/packages/apps/Camera2/common/src/com/mediatek/camera/common/utils/CameraUtil.java

 //*/add package
import android.graphics.BitmapFactory;
import com.mediatek.camera.common.mode.photo.PhotoModeHelper;
import java.io.ByteArrayOutputStream;
import android.graphics.Bitmap;
//*/

添加在最后的方法

//*/add sub camera mirror method mirrorJpegData
   public static byte[] mirrorJpegData(byte[] jpegData, int orientation) {
       byte[] dest = jpegData;
       BitmapFactory.Options opts = new BitmapFactory.Options();
       opts.inMutable = true;
       Bitmap b = BitmapFactory.decodeByteArray(jpegData, 0, jpegData.length, opts);
       b = PhotoModeHelper.rotateAndMirror(b, orientation, true);
       ByteArrayOutputStream baos = new ByteArrayOutputStream();
       b.compress(Bitmap.CompressFormat.JPEG, 100, baos);
       dest = baos.toByteArray();
       b.recycle();

       return dest;
   }
   //*/

2./vendor/mediatek/proprietary/packages/apps/Camera2/common/src/com/mediatek/camera/common/mode/photo/PhotoMode.java

 @Override
    public void onPostViewCallback(byte[] data) {
        LogHelper.d(TAG, "[onPostViewCallback] data = " + data + ",mIsResumed = " + mIsResumed);
        CameraSysTrace.onEventSystrace(POST_VIEW_CALLBACK, true, true);
        if (data != null && mIsResumed) {
            //will update the thumbnail
            int rotation = CameraUtil.getJpegRotationFromDeviceSpec(Integer.parseInt(mCameraId),
                    mIApp.getGSensorOrientation(), mIApp.getActivity());
            Bitmap bitmap = BitmapCreator.createBitmapFromYuv(data,
                    ThumbnailHelper.POST_VIEW_FORMAT,
                    ThumbnailHelper.getThumbnailWidth(),
                    ThumbnailHelper.getThumbnailHeight(),
                    mIApp.getAppUi().getThumbnailViewWidth(),
                    rotation);
              //*/ add sub camera mirror
            if (mCameraId.equals(FRONT_CAMERA_ID)) {//BACK_CAMERA_ID
                Matrix m = new Matrix();
                m.postScale(-1, 1);
                bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), m, true);
            }
            //*/
            mIApp.getAppUi().updateThumbnail(bitmap);
        }
        CameraSysTrace.onEventSystrace(POST_VIEW_CALLBACK, false, true);
    }

===============

保存数据是通过PhotoMode.java文件中的saveData方法实现，具体修改参照如下：引用方法

   private void saveData(byte[] data) {
        if (data != null) {
            //*/ add. sub camera mirror
            if (mCameraId.equals(FRONT_CAMERA_ID)) {//BACK_CAMERA_ID
                data = CameraUtil.mirrorJpegData(data, 0);
            }
            //*/
            //check memory to decide whether it can take next picture.
            //if not, show saving
            ISettingManager.SettingController controller = mISettingManager.getSettingController();
            String dngState = controller.queryValue(KEY_DNG);
            long saveDataSize = data.length;
            if (dngState != null && "on".equalsIgnoreCase(dngState)) {
                saveDataSize = saveDataSize + DNG_IMAGE_SIZE;
            }
            synchronized (mCaptureNumberSync) {
                mCapturingNumber ++;
                mMemoryManager.checkOneShotMemoryAction(saveDataSize);
            }
            String fileDirectory = mICameraContext.getStorageService().getFileDirectory();
            Size exifSize = CameraUtil.getSizeFromSdkExif(data);
            ContentValues contentValues = mPhotoModeHelper.createContentValues(data,
                    fileDirectory, exifSize.getWidth(), exifSize.getHeight());
            mICameraContext.getMediaSaver().addSaveRequest(data, contentValues, null,
                    mMediaSaverListener);
        }
    }

到此完结撒花！