List of usage examples for android.graphics Matrix Matrix
public Matrix()
From source file:com.MustacheMonitor.MustacheMonitor.StacheCam.java
/** * Called when the camera view exits.// ww w .j ava 2 s . com * * @param requestCode The request code originally supplied to startActivityForResult(), * allowing you to identify who this result came from. * @param resultCode The integer result code returned by the child activity through its setResult(). * @param intent An Intent, which can return result data to the caller (various data can be attached to Intent "extras"). */ public void onActivityResult(int requestCode, int resultCode, Intent intent) { // Get src and dest types from request code int srcType = (requestCode / 16) - 1; int destType = (requestCode % 16) - 1; int rotate = 0; // If CAMERA if (srcType == CAMERA) { // If image available if (resultCode == Activity.RESULT_OK) { try { // Create an ExifHelper to save the exif data that is lost during compression ExifHelper exif = new ExifHelper(); try { if (this.encodingType == JPEG) { exif.createInFile(DirectoryManager.getTempDirectoryPath(this.cordova.getActivity()) + "/.Pic.jpg"); exif.readExifData(); rotate = exif.getOrientation(); } } catch (IOException e) { e.printStackTrace(); } Bitmap bitmap = null; Uri uri = null; // If sending base64 image back if (destType == DATA_URL) { bitmap = getScaledBitmap(FileUtils.stripFileProtocol(imageUri.toString())); if (rotate != 0 && this.correctOrientation) { bitmap = getRotatedBitmap(rotate, bitmap, exif); } this.processPicture(bitmap); checkForDuplicateImage(DATA_URL); } // If sending filename back else if (destType == FILE_URI) { if (!this.saveToPhotoAlbum) { uri = Uri.fromFile( new File(DirectoryManager.getTempDirectoryPath(this.cordova.getActivity()), System.currentTimeMillis() + ".jpg")); } else { uri = getUriFromMediaStore(); } if (uri == null) { this.failPicture("Error capturing image - no media storage found."); } // If all this is true we shouldn't compress the image. if (this.targetHeight == -1 && this.targetWidth == -1 && this.mQuality == 100 && rotate == 0) { writeUncompressedImage(uri); this.success(new PluginResult(PluginResult.Status.OK, uri.toString()), this.callbackId); } else { bitmap = getScaledBitmap(FileUtils.stripFileProtocol(imageUri.toString())); if (rotate != 0 && this.correctOrientation) { bitmap = getRotatedBitmap(rotate, bitmap, exif); } // Add compressed version of captured image to returned media store Uri OutputStream os = this.cordova.getActivity().getContentResolver().openOutputStream(uri); bitmap.compress(Bitmap.CompressFormat.JPEG, this.mQuality, os); os.close(); // Restore exif data to file if (this.encodingType == JPEG) { String exifPath; if (this.saveToPhotoAlbum) { exifPath = FileUtils.getRealPathFromURI(uri, this.cordova); } else { exifPath = uri.getPath(); } exif.createOutFile(exifPath); exif.writeExifData(); } } // Send Uri back to JavaScript for viewing image this.success(new PluginResult(PluginResult.Status.OK, uri.toString()), this.callbackId); } this.cleanup(FILE_URI, this.imageUri, uri, bitmap); bitmap = null; } catch (IOException e) { e.printStackTrace(); this.failPicture("Error capturing image."); } } // If cancelled else if (resultCode == Activity.RESULT_CANCELED) { this.failPicture("Camera cancelled."); } // If something else else { this.failPicture("Did not complete!"); } } // If retrieving photo from library else if ((srcType == PHOTOLIBRARY) || (srcType == SAVEDPHOTOALBUM)) { if (resultCode == Activity.RESULT_OK) { Uri uri = intent.getData(); // If you ask for video or all media type you will automatically get back a file URI // and there will be no attempt to resize any returned data if (this.mediaType != PICTURE) { this.success(new PluginResult(PluginResult.Status.OK, uri.toString()), this.callbackId); } else { // This is a special case to just return the path as no scaling, // rotating or compression needs to be done if (this.targetHeight == -1 && this.targetWidth == -1 && this.mQuality == 100 && destType == FILE_URI && !this.correctOrientation) { this.success(new PluginResult(PluginResult.Status.OK, uri.toString()), this.callbackId); } else { // Get the path to the image. Makes loading so much easier. String imagePath = FileUtils.getRealPathFromURI(uri, this.cordova); Log.d(LOG_TAG, "Real path = " + imagePath); // If we don't have a valid image so quit. if (imagePath == null) { Log.d(LOG_TAG, "I either have a null image path or bitmap"); this.failPicture("Unable to retreive path to picture!"); return; } Bitmap bitmap = getScaledBitmap(imagePath); if (bitmap == null) { Log.d(LOG_TAG, "I either have a null image path or bitmap"); this.failPicture("Unable to create bitmap!"); return; } if (this.correctOrientation) { String[] cols = { MediaStore.Images.Media.ORIENTATION }; Cursor cursor = this.cordova.getActivity().getContentResolver().query(intent.getData(), cols, null, null, null); if (cursor != null) { cursor.moveToPosition(0); rotate = cursor.getInt(0); cursor.close(); } if (rotate != 0) { Matrix matrix = new Matrix(); matrix.setRotate(rotate); bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true); } } // If sending base64 image back if (destType == DATA_URL) { this.processPicture(bitmap); } // If sending filename back else if (destType == FILE_URI) { // Do we need to scale the returned file if (this.targetHeight > 0 && this.targetWidth > 0) { try { // Create an ExifHelper to save the exif data that is lost during compression String resizePath = DirectoryManager .getTempDirectoryPath(this.cordova.getActivity()) + "/resize.jpg"; ExifHelper exif = new ExifHelper(); try { if (this.encodingType == JPEG) { exif.createInFile(resizePath); exif.readExifData(); rotate = exif.getOrientation(); } } catch (IOException e) { e.printStackTrace(); } OutputStream os = new FileOutputStream(resizePath); bitmap.compress(Bitmap.CompressFormat.JPEG, this.mQuality, os); os.close(); // Restore exif data to file if (this.encodingType == JPEG) { exif.createOutFile(FileUtils.getRealPathFromURI(uri, this.cordova)); exif.writeExifData(); } // The resized image is cached by the app in order to get around this and not have to delete you // application cache I'm adding the current system time to the end of the file url. this.success( new PluginResult(PluginResult.Status.OK, ("file://" + resizePath + "?" + System.currentTimeMillis())), this.callbackId); } catch (Exception e) { e.printStackTrace(); this.failPicture("Error retrieving image."); } } else { this.success(new PluginResult(PluginResult.Status.OK, uri.toString()), this.callbackId); } } if (bitmap != null) { bitmap.recycle(); bitmap = null; } System.gc(); } } } else if (resultCode == Activity.RESULT_CANCELED) { this.failPicture("Selection cancelled."); } else { this.failPicture("Selection did not complete!"); } } }
From source file:com.prt.thirdeye.CamManager.java
/** * Returns the last frame of the preview surface * /*from www . j a va 2 s.c om*/ * @return Bitmap */ public Bitmap getLastPreviewFrame() { // Decode the last frame bytes byte[] data = mPreview.getLastFrameBytes(); Camera.Parameters params = getParameters(); if (params == null) { return null; } Camera.Size previewSize = params.getPreviewSize(); if (previewSize == null) { return null; } int previewWidth = previewSize.width; int previewHeight = previewSize.height; // Convert YUV420SP preview data to RGB try { if (data != null && data.length > 8) { Bitmap bitmap = Util.decodeYUV420SP(mContext, data, previewWidth, previewHeight); if (mCurrentFacing == Camera.CameraInfo.CAMERA_FACING_FRONT) { // Frontcam has the image flipped, flip it back to not look // weird in portrait Matrix m = new Matrix(); m.preScale(-1, 1); Bitmap dst = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), m, false); bitmap.recycle(); bitmap = dst; } return bitmap; } else { return null; } } catch (ArrayIndexOutOfBoundsException e) { // TODO: FIXME: On some devices, the resolution of the preview might // abruptly change, // thus the YUV420SP data is not the size we expect, causing OOB // exception return null; } }
From source file:com.ktouch.kdc.launcher4.camera.CameraManager.java
/** * Returns the last frame of the preview surface * * @return Bitmap/* ww w . j a v a2 s.co m*/ */ public Bitmap getLastPreviewFrame() { // Decode the last frame bytes byte[] data = mPreview.getLastFrameBytes(); Camera.Parameters params = getParameters(); if (params == null) { return null; } Camera.Size previewSize = params.getPreviewSize(); if (previewSize == null) { return null; } int previewWidth = previewSize.width; int previewHeight = previewSize.height; // Convert YUV420SP preview data to RGB try { if (data != null && data.length > 8) { Bitmap bitmap = Util.decodeYUV420SP(mContext, data, previewWidth, previewHeight); if (mCurrentFacing == Camera.CameraInfo.CAMERA_FACING_FRONT) { // Frontcam has the image flipped, flip it back to not look weird in portrait Matrix m = new Matrix(); m.preScale(-1, 1); Bitmap dst = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), m, false); bitmap.recycle(); bitmap = dst; } return bitmap; } else { return null; } } catch (ArrayIndexOutOfBoundsException e) { // TODO: FIXME: On some devices, the resolution of the preview might abruptly change, // thus the YUV420SP data is not the size we expect, causing OOB exception return null; } }
From source file:com.android.rahul.myselfieapp.Fragment.CamVideoFragment.java
/** * Configures the necessary {@link android.graphics.Matrix} transformation to `mTextureView`. * This method should not to be called until the camera preview size is determined in * openCamera, or until the size of `mTextureView` is fixed. * * @param viewWidth The width of `mTextureView` * @param viewHeight The height of `mTextureView` *//* w w w . j a v a 2 s. c o m*/ private void configureTransform(int viewWidth, int viewHeight) { Activity activity = getActivity(); if (null == mTextureView || null == mPreviewSize || null == activity) { return; } int rotation = activity.getWindowManager().getDefaultDisplay().getRotation(); Matrix matrix = new Matrix(); RectF viewRect = new RectF(0, 0, viewWidth, viewHeight); RectF bufferRect = new RectF(0, 0, mPreviewSize.getHeight(), mPreviewSize.getWidth()); float centerX = viewRect.centerX(); float centerY = viewRect.centerY(); if (Surface.ROTATION_90 == rotation || Surface.ROTATION_270 == rotation) { bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY()); matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL); float scale = Math.max((float) viewHeight / mPreviewSize.getHeight(), (float) viewWidth / mPreviewSize.getWidth()); matrix.postScale(scale, scale, centerX, centerY); matrix.postRotate(90 * (rotation - 2), centerX, centerY); } mTextureView.setTransform(matrix); }
From source file:eu.nubomedia.nubomedia_kurento_health_communicator_android.kc_and_communicator.util.FileUtils.java
public static Bitmap decodeSampledBitmapFromPath(String path, int reqWidth, int reqHeight) { final BitmapFactory.Options options = new BitmapFactory.Options(); options.inJustDecodeBounds = true;// w ww . j av a2 s . co m BitmapFactory.decodeFile(path, options); options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight); options.inJustDecodeBounds = false; Bitmap b = BitmapFactory.decodeFile(path, options); ExifInterface exif; try { exif = new ExifInterface(path); } catch (IOException e) { return null; } int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, 1); Matrix matrix = new Matrix(); if (orientation == 6) matrix.postRotate(90); else if (orientation == 3) matrix.postRotate(180); else if (orientation == 8) matrix.postRotate(270); return Bitmap.createBitmap(b, 0, 0, b.getWidth(), b.getHeight(), matrix, true); }
From source file:com.almalence.opencam.SavingService.java
public void saveResultPicture(long sessionID) { initSavingPrefs();/* w w w .jav a 2 s . c om*/ SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext()); // save fused result try { File saveDir = getSaveDir(false); Calendar d = Calendar.getInstance(); int imagesAmount = Integer .parseInt(getFromSharedMem("amountofresultframes" + Long.toString(sessionID))); if (imagesAmount == 0) imagesAmount = 1; int imageIndex = 0; String sImageIndex = getFromSharedMem("resultframeindex" + Long.toString(sessionID)); if (sImageIndex != null) imageIndex = Integer.parseInt(getFromSharedMem("resultframeindex" + Long.toString(sessionID))); if (imageIndex != 0) imagesAmount = 1; ContentValues values = null; boolean hasDNGResult = false; for (int i = 1; i <= imagesAmount; i++) { hasDNGResult = false; String format = getFromSharedMem("resultframeformat" + i + Long.toString(sessionID)); if (format != null && format.equalsIgnoreCase("dng")) hasDNGResult = true; String idx = ""; if (imagesAmount != 1) idx += "_" + ((format != null && !format.equalsIgnoreCase("dng") && hasDNGResult) ? i - imagesAmount / 2 : i); String modeName = getFromSharedMem("modeSaveName" + Long.toString(sessionID)); // define file name format. from settings! String fileFormat = getExportFileName(modeName); fileFormat += idx + ((format != null && format.equalsIgnoreCase("dng")) ? ".dng" : ".jpg"); File file; if (ApplicationScreen.getForceFilename() == null) { file = new File(saveDir, fileFormat); } else { file = ApplicationScreen.getForceFilename(); } OutputStream os = null; if (ApplicationScreen.getForceFilename() != null) { os = getApplicationContext().getContentResolver() .openOutputStream(ApplicationScreen.getForceFilenameURI()); } else { try { os = new FileOutputStream(file); } catch (Exception e) { // save always if not working saving to sdcard e.printStackTrace(); saveDir = getSaveDir(true); if (ApplicationScreen.getForceFilename() == null) { file = new File(saveDir, fileFormat); } else { file = ApplicationScreen.getForceFilename(); } os = new FileOutputStream(file); } } // Take only one result frame from several results // Used for PreShot plugin that may decide which result to save if (imagesAmount == 1 && imageIndex != 0) i = imageIndex; String resultOrientation = getFromSharedMem( "resultframeorientation" + i + Long.toString(sessionID)); int orientation = 0; if (resultOrientation != null) orientation = Integer.parseInt(resultOrientation); String resultMirrored = getFromSharedMem("resultframemirrored" + i + Long.toString(sessionID)); Boolean cameraMirrored = false; if (resultMirrored != null) cameraMirrored = Boolean.parseBoolean(resultMirrored); int x = Integer.parseInt(getFromSharedMem("saveImageHeight" + Long.toString(sessionID))); int y = Integer.parseInt(getFromSharedMem("saveImageWidth" + Long.toString(sessionID))); if (orientation == 0 || orientation == 180 || (format != null && format.equalsIgnoreCase("dng"))) { x = Integer.valueOf(getFromSharedMem("saveImageWidth" + Long.toString(sessionID))); y = Integer.valueOf(getFromSharedMem("saveImageHeight" + Long.toString(sessionID))); } Boolean writeOrientationTag = true; String writeOrientTag = getFromSharedMem("writeorientationtag" + Long.toString(sessionID)); if (writeOrientTag != null) writeOrientationTag = Boolean.parseBoolean(writeOrientTag); if (format != null && format.equalsIgnoreCase("jpeg")) {// if result in jpeg format if (os != null) { byte[] frame = SwapHeap.SwapFromHeap( Integer.parseInt(getFromSharedMem("resultframe" + i + Long.toString(sessionID))), Integer.parseInt( getFromSharedMem("resultframelen" + i + Long.toString(sessionID)))); os.write(frame); try { os.close(); } catch (Exception e) { e.printStackTrace(); } } } else if (format != null && format.equalsIgnoreCase("dng")) { saveDNGPicture(i, sessionID, os, x, y, orientation, cameraMirrored); } else {// if result in nv21 format int yuv = Integer.parseInt(getFromSharedMem("resultframe" + i + Long.toString(sessionID))); com.almalence.YuvImage out = new com.almalence.YuvImage(yuv, ImageFormat.NV21, x, y, null); Rect r; String res = getFromSharedMem("resultfromshared" + Long.toString(sessionID)); if ((null == res) || "".equals(res) || "true".equals(res)) { // to avoid problems with SKIA int cropHeight = out.getHeight() - out.getHeight() % 16; r = new Rect(0, 0, out.getWidth(), cropHeight); } else { if (null == getFromSharedMem("resultcrop0" + Long.toString(sessionID))) { // to avoid problems with SKIA int cropHeight = out.getHeight() - out.getHeight() % 16; r = new Rect(0, 0, out.getWidth(), cropHeight); } else { int crop0 = Integer .parseInt(getFromSharedMem("resultcrop0" + Long.toString(sessionID))); int crop1 = Integer .parseInt(getFromSharedMem("resultcrop1" + Long.toString(sessionID))); int crop2 = Integer .parseInt(getFromSharedMem("resultcrop2" + Long.toString(sessionID))); int crop3 = Integer .parseInt(getFromSharedMem("resultcrop3" + Long.toString(sessionID))); r = new Rect(crop0, crop1, crop0 + crop2, crop1 + crop3); } } jpegQuality = Integer.parseInt(prefs.getString(ApplicationScreen.sJPEGQualityPref, "95")); if (!out.compressToJpeg(r, jpegQuality, os)) { if (ApplicationScreen.instance != null && ApplicationScreen.getMessageHandler() != null) { ApplicationScreen.getMessageHandler() .sendEmptyMessage(ApplicationInterface.MSG_EXPORT_FINISHED_IOEXCEPTION); } return; } SwapHeap.FreeFromHeap(yuv); } String orientation_tag = String.valueOf(0); // int sensorOrientation = CameraController.getSensorOrientation(); // int displayOrientation = CameraController.getDisplayOrientation(); // sensorOrientation = (360 + sensorOrientation + (cameraMirrored ? -displayOrientation // : displayOrientation)) % 360; // if (CameraController.isFlippedSensorDevice() && cameraMirrored) // orientation = (orientation + 180) % 360; switch (orientation) { default: case 0: orientation_tag = String.valueOf(0); break; case 90: orientation_tag = cameraMirrored ? String.valueOf(270) : String.valueOf(90); break; case 180: orientation_tag = String.valueOf(180); break; case 270: orientation_tag = cameraMirrored ? String.valueOf(90) : String.valueOf(270); break; } int exif_orientation = ExifInterface.ORIENTATION_NORMAL; if (writeOrientationTag) { switch ((orientation + 360) % 360) { default: case 0: exif_orientation = ExifInterface.ORIENTATION_NORMAL; break; case 90: exif_orientation = cameraMirrored ? ExifInterface.ORIENTATION_ROTATE_270 : ExifInterface.ORIENTATION_ROTATE_90; break; case 180: exif_orientation = ExifInterface.ORIENTATION_ROTATE_180; break; case 270: exif_orientation = cameraMirrored ? ExifInterface.ORIENTATION_ROTATE_90 : ExifInterface.ORIENTATION_ROTATE_270; break; } } else { switch ((additionalRotationValue + 360) % 360) { default: case 0: exif_orientation = ExifInterface.ORIENTATION_NORMAL; break; case 90: exif_orientation = cameraMirrored ? ExifInterface.ORIENTATION_ROTATE_270 : ExifInterface.ORIENTATION_ROTATE_90; break; case 180: exif_orientation = ExifInterface.ORIENTATION_ROTATE_180; break; case 270: exif_orientation = cameraMirrored ? ExifInterface.ORIENTATION_ROTATE_90 : ExifInterface.ORIENTATION_ROTATE_270; break; } } if (!enableExifTagOrientation) exif_orientation = ExifInterface.ORIENTATION_NORMAL; File parent = file.getParentFile(); String path = parent.toString().toLowerCase(); String name = parent.getName().toLowerCase(); values = new ContentValues(); values.put(ImageColumns.TITLE, file.getName().substring(0, file.getName().lastIndexOf(".") >= 0 ? file.getName().lastIndexOf(".") : file.getName().length())); values.put(ImageColumns.DISPLAY_NAME, file.getName()); values.put(ImageColumns.DATE_TAKEN, System.currentTimeMillis()); values.put(ImageColumns.MIME_TYPE, "image/jpeg"); if (enableExifTagOrientation) { if (writeOrientationTag) { values.put(ImageColumns.ORIENTATION, String.valueOf( (Integer.parseInt(orientation_tag) + additionalRotationValue + 360) % 360)); } else { values.put(ImageColumns.ORIENTATION, String.valueOf((additionalRotationValue + 360) % 360)); } } else { values.put(ImageColumns.ORIENTATION, String.valueOf(0)); } values.put(ImageColumns.BUCKET_ID, path.hashCode()); values.put(ImageColumns.BUCKET_DISPLAY_NAME, name); values.put(ImageColumns.DATA, file.getAbsolutePath()); File tmpFile; if (ApplicationScreen.getForceFilename() == null) { tmpFile = file; } else { tmpFile = new File(getApplicationContext().getFilesDir(), "buffer.jpeg"); tmpFile.createNewFile(); copyFromForceFileName(tmpFile); } if (!enableExifTagOrientation) { Matrix matrix = new Matrix(); if (writeOrientationTag && (orientation + additionalRotationValue) != 0) { matrix.postRotate((orientation + additionalRotationValue + 360) % 360); rotateImage(tmpFile, matrix); } else if (!writeOrientationTag && additionalRotationValue != 0) { matrix.postRotate((additionalRotationValue + 360) % 360); rotateImage(tmpFile, matrix); } } if (useGeoTaggingPrefExport) { Location l = MLocation.getLocation(getApplicationContext()); if (l != null) { double lat = l.getLatitude(); double lon = l.getLongitude(); boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); if (hasLatLon) { values.put(ImageColumns.LATITUDE, l.getLatitude()); values.put(ImageColumns.LONGITUDE, l.getLongitude()); } } } File modifiedFile = saveExifTags(tmpFile, sessionID, i, x, y, exif_orientation, useGeoTaggingPrefExport, enableExifTagOrientation); if (ApplicationScreen.getForceFilename() == null) { file.delete(); modifiedFile.renameTo(file); } else { copyToForceFileName(modifiedFile); tmpFile.delete(); modifiedFile.delete(); } Uri uri = getApplicationContext().getContentResolver().insert(Images.Media.EXTERNAL_CONTENT_URI, values); broadcastNewPicture(uri); } ApplicationScreen.getMessageHandler().sendEmptyMessage(ApplicationInterface.MSG_EXPORT_FINISHED); } catch (IOException e) { e.printStackTrace(); ApplicationScreen.getMessageHandler() .sendEmptyMessage(ApplicationInterface.MSG_EXPORT_FINISHED_IOEXCEPTION); return; } catch (Exception e) { e.printStackTrace(); ApplicationScreen.getMessageHandler().sendEmptyMessage(ApplicationInterface.MSG_EXPORT_FINISHED); } finally { ApplicationScreen.setForceFilename(null); } }
From source file:com.phonegap.plugins.wsiCameraLauncher.WsiCameraLauncher.java
private Bitmap fitInsideSquare(Bitmap b, int sideLength) { int grabWidth = b.getWidth(); int grabHeight = b.getHeight(); float scaleX = ((float) sideLength) / grabWidth; float scaleY = ((float) sideLength) / grabHeight; float scale = Math.min(scaleX, scaleY); Matrix m = new Matrix(); m.postScale(scale, scale);//from ww w. j a v a 2 s. c o m return Bitmap.createBitmap(b, 0, 0, b.getWidth(), b.getHeight(), m, true); }
From source file:com.phonegap.plugins.wsiCameraLauncher.WsiCameraLauncher.java
private Bitmap makeInsideSquare(Bitmap b, int sideLength) { int grabWidth = b.getWidth(); int grabHeight = b.getHeight(); if (grabWidth > grabHeight) { grabWidth = grabHeight;/*from w ww. j a va2 s . c o m*/ } else { grabHeight = grabWidth; } float scale = ((float) sideLength) / grabWidth; Matrix m = new Matrix(); m.postScale(scale, scale); return Bitmap.createBitmap(b, 0, 0, grabWidth, grabHeight, m, true); }
From source file:com.askjeffreyliu.camera2barcode.camera.CameraSource.java
/** * Configures the necessary {@link android.graphics.Matrix} transformation to `mTextureView`. * This method should be called after the camera preview size is determined in * setUpCameraOutputs and also the size of `mTextureView` is fixed. * * @param viewWidth The width of `mTextureView` * @param viewHeight The height of `mTextureView` *///w ww .j a v a2 s . c om private void configureTransform(int viewWidth, int viewHeight) { if (null == mTextureView || null == mPreviewSize) { return; } int rotation = mDisplayOrientation; Matrix matrix = new Matrix(); RectF viewRect = new RectF(0, 0, viewWidth, viewHeight); RectF bufferRect = new RectF(0, 0, mPreviewSize.getHeight(), mPreviewSize.getWidth()); float centerX = viewRect.centerX(); float centerY = viewRect.centerY(); if (Surface.ROTATION_90 == rotation || Surface.ROTATION_270 == rotation) { bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY()); matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL); float scale = Math.max((float) viewHeight / mPreviewSize.getHeight(), (float) viewWidth / mPreviewSize.getWidth()); matrix.postScale(scale, scale, centerX, centerY); matrix.postRotate(90 * (rotation - 2), centerX, centerY); } else if (Surface.ROTATION_180 == rotation) { matrix.postRotate(180, centerX, centerY); } mTextureView.setTransform(matrix); }
From source file:edu.cens.loci.ui.PlaceListActivity.java
private Bitmap overlay(Bitmap... bitmaps) { if (bitmaps[0].equals(null)) return null; Bitmap bmOverlay = Bitmap.createBitmap(60, 60, Bitmap.Config.ARGB_4444); Canvas canvas = new Canvas(bmOverlay); for (int i = 0; i < bitmaps.length; i++) canvas.drawBitmap(bitmaps[i], new Matrix(), null); return bmOverlay; }