| /* |
| * Copyright (C) 2011 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 android.filterpacks.imageproc; |
| |
| import android.content.Context; |
| import android.filterfw.core.Filter; |
| import android.filterfw.core.FilterContext; |
| import android.filterfw.core.Frame; |
| import android.filterfw.core.FrameFormat; |
| import android.filterfw.core.FrameManager; |
| import android.filterfw.core.GenerateFinalPort; |
| import android.filterfw.core.GenerateFieldPort; |
| import android.filterfw.core.KeyValueMap; |
| import android.filterfw.core.MutableFrameFormat; |
| import android.filterfw.core.NativeFrame; |
| import android.filterfw.format.ImageFormat; |
| import android.graphics.Bitmap; |
| |
| /** |
| * @hide |
| */ |
| public class BitmapSource extends Filter { |
| |
| @GenerateFieldPort(name = "target") |
| String mTargetString; |
| |
| @GenerateFieldPort(name = "bitmap") |
| private Bitmap mBitmap; |
| |
| @GenerateFieldPort(name = "recycleBitmap", hasDefault = true) |
| private boolean mRecycleBitmap = true; |
| |
| @GenerateFieldPort(name = "repeatFrame", hasDefault = true) |
| boolean mRepeatFrame = false; |
| |
| private int mTarget; |
| private Frame mImageFrame; |
| |
| public BitmapSource(String name) { |
| super(name); |
| } |
| |
| |
| @Override |
| public void setupPorts() { |
| // Setup output format |
| FrameFormat outputFormat = ImageFormat.create(ImageFormat.COLORSPACE_RGBA, |
| FrameFormat.TARGET_UNSPECIFIED); |
| |
| // Add output port |
| addOutputPort("image", outputFormat); |
| } |
| |
| public void loadImage(FilterContext filterContext) { |
| // Create frame with bitmap |
| mTarget = FrameFormat.readTargetString(mTargetString); |
| FrameFormat outputFormat = ImageFormat.create(mBitmap.getWidth(), |
| mBitmap.getHeight(), |
| ImageFormat.COLORSPACE_RGBA, |
| mTarget); |
| mImageFrame = filterContext.getFrameManager().newFrame(outputFormat); |
| mImageFrame.setBitmap(mBitmap); |
| mImageFrame.setTimestamp(Frame.TIMESTAMP_UNKNOWN); |
| |
| // Free up space used by bitmap |
| if (mRecycleBitmap) { |
| mBitmap.recycle(); |
| } |
| mBitmap = null; |
| } |
| |
| @Override |
| public void fieldPortValueUpdated(String name, FilterContext context) { |
| // Clear image (to trigger reload) in case parameters have been changed |
| if (name.equals("bitmap") || name.equals("target")) { |
| if (mImageFrame != null) { |
| mImageFrame.release(); |
| mImageFrame = null; |
| } |
| } |
| } |
| |
| @Override |
| public void process(FilterContext context) { |
| if (mImageFrame == null) { |
| loadImage(context); |
| } |
| |
| pushOutput("image", mImageFrame); |
| |
| if (!mRepeatFrame) { |
| closeOutputPort("image"); |
| } |
| } |
| |
| @Override |
| public void tearDown(FilterContext env) { |
| if (mImageFrame != null) { |
| mImageFrame.release(); |
| mImageFrame = null; |
| } |
| } |
| } |