| /* |
| * 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.gallery3d.filtershow.pipeline; |
| |
| import android.graphics.Bitmap; |
| import android.graphics.Canvas; |
| import android.renderscript.Allocation; |
| import android.renderscript.RenderScript; |
| import android.util.Log; |
| import com.android.gallery3d.filtershow.cache.BitmapCache; |
| import com.android.gallery3d.filtershow.imageshow.MasterImage; |
| |
| public class Buffer { |
| private static final String LOGTAG = "Buffer"; |
| private Bitmap mBitmap; |
| private Allocation mAllocation; |
| private boolean mUseAllocation = false; |
| private ImagePreset mPreset; |
| |
| public Buffer(Bitmap bitmap) { |
| RenderScript rs = CachingPipeline.getRenderScriptContext(); |
| if (bitmap != null) { |
| BitmapCache cache = MasterImage.getImage().getBitmapCache(); |
| mBitmap = cache.getBitmapCopy(bitmap, BitmapCache.PREVIEW_CACHE); |
| } |
| if (mUseAllocation) { |
| // TODO: recreate the allocation when the RS context changes |
| mAllocation = Allocation.createFromBitmap(rs, mBitmap, |
| Allocation.MipmapControl.MIPMAP_NONE, |
| Allocation.USAGE_SHARED | Allocation.USAGE_SCRIPT); |
| } |
| } |
| |
| public boolean isSameSize(Bitmap bitmap) { |
| if (mBitmap == null || bitmap == null) { |
| return false; |
| } |
| if (mBitmap.getWidth() == bitmap.getWidth() |
| && mBitmap.getHeight() == bitmap.getHeight()) { |
| return true; |
| } |
| return false; |
| } |
| |
| public synchronized void useBitmap(Bitmap bitmap) { |
| Canvas canvas = new Canvas(mBitmap); |
| canvas.drawBitmap(bitmap, 0, 0, null); |
| } |
| |
| public synchronized Bitmap getBitmap() { |
| return mBitmap; |
| } |
| |
| public Allocation getAllocation() { |
| return mAllocation; |
| } |
| |
| public void sync() { |
| if (mUseAllocation) { |
| mAllocation.copyTo(mBitmap); |
| } |
| } |
| |
| public ImagePreset getPreset() { |
| return mPreset; |
| } |
| |
| public void setPreset(ImagePreset preset) { |
| if ((mPreset == null) || (!mPreset.same(preset))) { |
| mPreset = new ImagePreset(preset); |
| } else { |
| mPreset.updateWith(preset); |
| } |
| } |
| |
| public void remove() { |
| BitmapCache cache = MasterImage.getImage().getBitmapCache(); |
| if (cache.cache(mBitmap)) { |
| mBitmap = null; |
| } |
| } |
| } |
| |