1 /*
2  * Copyright (C) 2013 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.gallery3d.filtershow.pipeline;
18 
19 import android.graphics.Bitmap;
20 import android.graphics.Canvas;
21 import android.util.Log;
22 import com.android.gallery3d.filtershow.cache.BitmapCache;
23 import com.android.gallery3d.filtershow.imageshow.PrimaryImage;
24 
25 public class Buffer {
26     private static final String LOGTAG = "Buffer";
27     private Bitmap mBitmap;
28     private ImagePreset mPreset;
29 
Buffer(Bitmap bitmap)30     public Buffer(Bitmap bitmap) {
31         if (bitmap != null) {
32             BitmapCache cache = PrimaryImage.getImage().getBitmapCache();
33             mBitmap = cache.getBitmapCopy(bitmap, BitmapCache.PREVIEW_CACHE);
34         }
35     }
36 
isSameSize(Bitmap bitmap)37     public boolean isSameSize(Bitmap bitmap) {
38         if (mBitmap == null || bitmap == null) {
39             return false;
40         }
41         if (mBitmap.getWidth() == bitmap.getWidth()
42                 && mBitmap.getHeight() == bitmap.getHeight()) {
43             return true;
44         }
45         return false;
46     }
47 
useBitmap(Bitmap bitmap)48     public synchronized void useBitmap(Bitmap bitmap) {
49         Canvas canvas = new Canvas(mBitmap);
50         canvas.drawBitmap(bitmap, 0, 0, null);
51     }
52 
getBitmap()53     public synchronized Bitmap getBitmap() {
54         return mBitmap;
55     }
56 
sync()57     public void sync() {
58     }
59 
getPreset()60     public ImagePreset getPreset() {
61         return mPreset;
62     }
63 
setPreset(ImagePreset preset)64     public void setPreset(ImagePreset preset) {
65         if ((mPreset == null) || (!mPreset.same(preset))) {
66             mPreset = new ImagePreset(preset);
67         } else {
68             mPreset.updateWith(preset);
69         }
70     }
71 
remove()72     public void remove() {
73         BitmapCache cache = PrimaryImage.getImage().getBitmapCache();
74         if (cache.cache(mBitmap)) {
75             mBitmap = null;
76         }
77     }
78 }
79