diff options
Diffstat (limited to 'src/com/android/photos/data/MediaCacheUtils.java')
-rw-r--r-- | src/com/android/photos/data/MediaCacheUtils.java | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/src/com/android/photos/data/MediaCacheUtils.java b/src/com/android/photos/data/MediaCacheUtils.java deleted file mode 100644 index e3ccd1402..000000000 --- a/src/com/android/photos/data/MediaCacheUtils.java +++ /dev/null @@ -1,167 +0,0 @@ -/* - * Copyright (C) 2013 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -package com.android.photos.data; - -import android.content.Context; -import android.content.res.Resources; -import android.graphics.Bitmap; -import android.graphics.Bitmap.CompressFormat; -import android.graphics.BitmapFactory; -import android.util.Log; -import android.util.Pools.SimplePool; -import android.util.Pools.SynchronizedPool; - -import com.android.gallery3d.R; -import com.android.gallery3d.common.BitmapUtils; -import com.android.gallery3d.common.Utils; -import com.android.gallery3d.data.DecodeUtils; -import com.android.gallery3d.data.MediaItem; -import com.android.gallery3d.util.ThreadPool.CancelListener; -import com.android.gallery3d.util.ThreadPool.JobContext; -import com.android.photos.data.MediaRetriever.MediaSize; - -import java.io.File; -import java.io.FileOutputStream; -import java.io.IOException; -import java.io.InputStream; -import java.io.OutputStream; - -public class MediaCacheUtils { - private static final String TAG = MediaCacheUtils.class.getSimpleName(); - private static int QUALITY = 80; - private static final int BUFFER_SIZE = 4096; - private static final SimplePool<byte[]> mBufferPool = new SynchronizedPool<byte[]>(5); - - private static final JobContext sJobStub = new JobContext() { - - @Override - public boolean isCancelled() { - return false; - } - - @Override - public void setCancelListener(CancelListener listener) { - } - - @Override - public boolean setMode(int mode) { - return true; - } - }; - - private static int mTargetThumbnailSize; - private static int mTargetPreviewSize; - - public static void initialize(Context context) { - Resources resources = context.getResources(); - mTargetThumbnailSize = resources.getDimensionPixelSize(R.dimen.size_thumbnail); - mTargetPreviewSize = resources.getDimensionPixelSize(R.dimen.size_preview); - } - - public static int getTargetSize(MediaSize size) { - return (size == MediaSize.Thumbnail) ? mTargetThumbnailSize : mTargetPreviewSize; - } - - public static boolean downsample(File inBitmap, MediaSize targetSize, File outBitmap) { - if (MediaSize.Original == targetSize) { - return false; // MediaCache should use the local path for this. - } - int size = getTargetSize(targetSize); - BitmapFactory.Options options = new BitmapFactory.Options(); - options.inPreferredConfig = Bitmap.Config.ARGB_8888; - // TODO: remove unnecessary job context from DecodeUtils. - Bitmap bitmap = DecodeUtils.decodeThumbnail(sJobStub, inBitmap.getPath(), options, size, - MediaItem.TYPE_THUMBNAIL); - boolean success = (bitmap != null); - if (success) { - success = writeAndRecycle(bitmap, outBitmap); - } - return success; - } - - public static boolean downsample(Bitmap inBitmap, MediaSize size, File outBitmap) { - if (MediaSize.Original == size) { - return false; // MediaCache should use the local path for this. - } - int targetSize = getTargetSize(size); - boolean success; - if (!needsDownsample(inBitmap, size)) { - success = writeAndRecycle(inBitmap, outBitmap); - } else { - float maxDimension = Math.max(inBitmap.getWidth(), inBitmap.getHeight()); - float scale = targetSize / maxDimension; - int targetWidth = Math.round(scale * inBitmap.getWidth()); - int targetHeight = Math.round(scale * inBitmap.getHeight()); - Bitmap scaled = Bitmap.createScaledBitmap(inBitmap, targetWidth, targetHeight, false); - success = writeAndRecycle(scaled, outBitmap); - inBitmap.recycle(); - } - return success; - } - - public static boolean extractImageFromVideo(File inVideo, File outBitmap) { - Bitmap bitmap = BitmapUtils.createVideoThumbnail(inVideo.getPath()); - return writeAndRecycle(bitmap, outBitmap); - } - - public static boolean needsDownsample(Bitmap bitmap, MediaSize size) { - if (size == MediaSize.Original) { - return false; - } - int targetSize = getTargetSize(size); - int maxDimension = Math.max(bitmap.getWidth(), bitmap.getHeight()); - return maxDimension > (targetSize * 4 / 3); - } - - public static boolean writeAndRecycle(Bitmap bitmap, File outBitmap) { - boolean success = writeToFile(bitmap, outBitmap); - bitmap.recycle(); - return success; - } - - public static boolean writeToFile(Bitmap bitmap, File outBitmap) { - boolean success = false; - try { - FileOutputStream out = new FileOutputStream(outBitmap); - success = bitmap.compress(CompressFormat.JPEG, QUALITY, out); - out.close(); - } catch (IOException e) { - Log.w(TAG, "Couldn't write bitmap to cache", e); - // success is already false - } - return success; - } - - public static int copyStream(InputStream in, OutputStream out) throws IOException { - byte[] buffer = mBufferPool.acquire(); - if (buffer == null) { - buffer = new byte[BUFFER_SIZE]; - } - try { - int totalWritten = 0; - int bytesRead; - while ((bytesRead = in.read(buffer)) >= 0) { - out.write(buffer, 0, bytesRead); - totalWritten += bytesRead; - } - return totalWritten; - } finally { - Utils.closeSilently(in); - Utils.closeSilently(out); - mBufferPool.release(buffer); - } - } -} |