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Diffstat (limited to 'src/com/android/photos/BitmapRegionTileSource.java')
| -rw-r--r-- | src/com/android/photos/BitmapRegionTileSource.java | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/src/com/android/photos/BitmapRegionTileSource.java b/src/com/android/photos/BitmapRegionTileSource.java deleted file mode 100644 index d7d52f67a..000000000 --- a/src/com/android/photos/BitmapRegionTileSource.java +++ /dev/null @@ -1,183 +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; - -import android.content.Context; -import android.graphics.Bitmap; -import android.graphics.Bitmap.Config; -import android.graphics.BitmapFactory; -import android.graphics.BitmapRegionDecoder; -import android.graphics.Canvas; -import android.graphics.Rect; -import android.os.Build; -import android.os.Build.VERSION_CODES; -import android.util.Log; - -import com.android.gallery3d.glrenderer.BasicTexture; -import com.android.gallery3d.glrenderer.BitmapTexture; -import com.android.photos.views.TiledImageRenderer; - -import java.io.IOException; - -/** - * A {@link com.android.photos.views.TiledImageRenderer.TileSource} using - * {@link BitmapRegionDecoder} to wrap a local file - */ -public class BitmapRegionTileSource implements TiledImageRenderer.TileSource { - - private static final String TAG = "BitmapRegionTileSource"; - - private static final boolean REUSE_BITMAP = - Build.VERSION.SDK_INT >= VERSION_CODES.JELLY_BEAN; - private static final int MAX_PREVIEW_SIZE = 1024; - - BitmapRegionDecoder mDecoder; - int mWidth; - int mHeight; - int mTileSize; - private BasicTexture mPreview; - private final int mRotation; - - // For use only by getTile - private Rect mWantRegion = new Rect(); - private Rect mOverlapRegion = new Rect(); - private BitmapFactory.Options mOptions; - private Canvas mCanvas; - - public BitmapRegionTileSource(Context context, String path, int previewSize, int rotation) { - mTileSize = TiledImageRenderer.suggestedTileSize(context); - mRotation = rotation; - try { - mDecoder = BitmapRegionDecoder.newInstance(path, true); - mWidth = mDecoder.getWidth(); - mHeight = mDecoder.getHeight(); - } catch (IOException e) { - Log.w("BitmapRegionTileSource", "ctor failed", e); - } - mOptions = new BitmapFactory.Options(); - mOptions.inPreferredConfig = Bitmap.Config.ARGB_8888; - mOptions.inPreferQualityOverSpeed = true; - mOptions.inTempStorage = new byte[16 * 1024]; - if (previewSize != 0) { - previewSize = Math.min(previewSize, MAX_PREVIEW_SIZE); - // Although this is the same size as the Bitmap that is likely already - // loaded, the lifecycle is different and interactions are on a different - // thread. Thus to simplify, this source will decode its own bitmap. - int sampleSize = (int) Math.ceil(Math.max( - mWidth / (float) previewSize, mHeight / (float) previewSize)); - mOptions.inSampleSize = Math.max(sampleSize, 1); - Bitmap preview = mDecoder.decodeRegion( - new Rect(0, 0, mWidth, mHeight), mOptions); - if (preview.getWidth() <= MAX_PREVIEW_SIZE && preview.getHeight() <= MAX_PREVIEW_SIZE) { - mPreview = new BitmapTexture(preview); - } else { - Log.w(TAG, String.format( - "Failed to create preview of apropriate size! " - + " in: %dx%d, sample: %d, out: %dx%d", - mWidth, mHeight, sampleSize, - preview.getWidth(), preview.getHeight())); - } - } - } - - @Override - public int getTileSize() { - return mTileSize; - } - - @Override - public int getImageWidth() { - return mWidth; - } - - @Override - public int getImageHeight() { - return mHeight; - } - - @Override - public BasicTexture getPreview() { - return mPreview; - } - - @Override - public int getRotation() { - return mRotation; - } - - @Override - public Bitmap getTile(int level, int x, int y, Bitmap bitmap) { - int tileSize = getTileSize(); - if (!REUSE_BITMAP) { - return getTileWithoutReusingBitmap(level, x, y, tileSize); - } - - int t = tileSize << level; - mWantRegion.set(x, y, x + t, y + t); - - if (bitmap == null) { - bitmap = Bitmap.createBitmap(tileSize, tileSize, Bitmap.Config.ARGB_8888); - } - - mOptions.inSampleSize = (1 << level); - mOptions.inBitmap = bitmap; - - try { - bitmap = mDecoder.decodeRegion(mWantRegion, mOptions); - } finally { - if (mOptions.inBitmap != bitmap && mOptions.inBitmap != null) { - mOptions.inBitmap = null; - } - } - - if (bitmap == null) { - Log.w("BitmapRegionTileSource", "fail in decoding region"); - } - return bitmap; - } - - private Bitmap getTileWithoutReusingBitmap( - int level, int x, int y, int tileSize) { - - int t = tileSize << level; - mWantRegion.set(x, y, x + t, y + t); - - mOverlapRegion.set(0, 0, mWidth, mHeight); - - mOptions.inSampleSize = (1 << level); - Bitmap bitmap = mDecoder.decodeRegion(mOverlapRegion, mOptions); - - if (bitmap == null) { - Log.w(TAG, "fail in decoding region"); - } - - if (mWantRegion.equals(mOverlapRegion)) { - return bitmap; - } - - Bitmap result = Bitmap.createBitmap(tileSize, tileSize, Config.ARGB_8888); - if (mCanvas == null) { - mCanvas = new Canvas(); - } - mCanvas.setBitmap(result); - mCanvas.drawBitmap(bitmap, - (mOverlapRegion.left - mWantRegion.left) >> level, - (mOverlapRegion.top - mWantRegion.top) >> level, null); - mCanvas.setBitmap(null); - return result; - } -} |