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/*
* Copyright (c) 2016, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.android.camera;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.ImageFormat;
import android.graphics.Rect;
import android.graphics.YuvImage;
import android.os.Handler;
import android.os.HandlerThread;
import android.renderscript.Allocation;
import android.renderscript.Element;
import android.renderscript.RenderScript;
import android.renderscript.ScriptIntrinsicYuvToRGB;
import android.renderscript.Type;
import android.util.Log;
import android.util.Size;
import android.view.Surface;
import com.android.camera.ui.PanoCaptureProcessView;
import java.io.ByteArrayOutputStream;
public class PanoCaptureFrameProcessor {
private Allocation mInputAllocation;
private Allocation mARGBOutputAllocation;
private Surface mSurface;
private HandlerThread mProcessingThread;
private Handler mProcessingHandler;
public ProcessingTask mTask;
private Size mSize;
private RenderScript mRs;
private PanoCaptureUI mUI;
private Activity mActivity;
private PanoCaptureModule mController;
ScriptIntrinsicYuvToRGB mRsYuvToRGB;
private Bitmap mBitmap;
private boolean mIsPanoActive = false;
private Object mPanoSwitchLock = new Object();
private Object mAllocationLock = new Object();
private boolean mIsAllocationEverUsed;
public PanoCaptureFrameProcessor(Size dimensions, Activity activity, PanoCaptureUI ui, PanoCaptureModule controller) {
mUI = ui;
mSize = dimensions;
mActivity = activity;
mController = controller;
synchronized (mAllocationLock) {
mRs = RenderScript.create(mActivity);
mRsYuvToRGB = ScriptIntrinsicYuvToRGB.create(mRs, Element.RGBA_8888(mRs));
Type.Builder yuvTypeBuilder = new Type.Builder(mRs, Element.YUV(mRs));
yuvTypeBuilder.setX(dimensions.getWidth());
yuvTypeBuilder.setY(dimensions.getHeight());
yuvTypeBuilder.setYuvFormat(ImageFormat.YUV_420_888);
mInputAllocation = Allocation.createTyped(mRs, yuvTypeBuilder.create(),
Allocation.USAGE_IO_INPUT | Allocation.USAGE_SCRIPT);
Type.Builder rgbTypeBuilder = new Type.Builder(mRs, Element.RGBA_8888(mRs));
rgbTypeBuilder.setX(dimensions.getWidth());
rgbTypeBuilder.setY(dimensions.getHeight());
mARGBOutputAllocation = Allocation.createTyped(mRs, rgbTypeBuilder.create(), Allocation.USAGE_SCRIPT);
if (mProcessingThread == null) {
mProcessingThread = new HandlerThread("PanoCapture_FrameProcessor");
mProcessingThread.start();
mProcessingHandler = new Handler(mProcessingThread.getLooper());
}
mTask = new ProcessingTask();
mInputAllocation.setOnBufferAvailableListener(mTask);
mIsAllocationEverUsed = false;
}
}
public void clear() {
if(mIsPanoActive) {
changePanoStatus(false, true);
}
synchronized (mAllocationLock) {
mInputAllocation.setOnBufferAvailableListener(null);
if(mIsAllocationEverUsed) {
mRs.destroy();
mInputAllocation.destroy();
mARGBOutputAllocation.destroy();
}
mRs = null;
mInputAllocation = null;
mARGBOutputAllocation = null;
}
mProcessingThread.quitSafely();
try {
mProcessingThread.join();
mProcessingThread = null;
mProcessingHandler = null;
} catch (InterruptedException e) {
}
}
public Surface getInputSurface() {
synchronized (mAllocationLock) {
if (mInputAllocation == null)
return null;
return mInputAllocation.getSurface();
}
}
public void changePanoStatus(boolean newStatus, boolean isCancelling) {
if(newStatus == mIsPanoActive) {
return;
}
synchronized (mPanoSwitchLock) {
if(mUI.isPanoCompleting()) {
return;
}
mIsPanoActive = newStatus;
if (!mIsPanoActive) {
mUI.onFrameAvailable(null, isCancelling);
}
}
if(!mIsPanoActive) {
mController.unlockFocus();
}
}
public boolean isPanoActive() {
return mIsPanoActive;
}
class ProcessingTask implements Runnable, Allocation.OnBufferAvailableListener {
private int mPendingFrames = 0;
private int mFrameCounter = 0;
public ProcessingTask() {
mBitmap = Bitmap.createBitmap(mSize.getWidth(), mSize.getHeight(), Bitmap.Config.ARGB_8888);
}
@Override
public void onBufferAvailable(Allocation a) {
if(mProcessingHandler == null)
return;
synchronized(this) {
mPendingFrames++;
mProcessingHandler.post(this);
}
}
@Override
public void run() {
int pendingFrames;
synchronized(this) {
pendingFrames = mPendingFrames;
mPendingFrames = 0;
mProcessingHandler.removeCallbacks(this);
}
synchronized (mAllocationLock) {
if(mInputAllocation == null || mARGBOutputAllocation == null)
return;
mIsAllocationEverUsed = true;
for (int i = 0; i < pendingFrames; i++) {
mInputAllocation.ioReceive();
}
synchronized (mPanoSwitchLock) {
if (mIsPanoActive && !mUI.isFrameProcessing()) {
mRsYuvToRGB.setInput(mInputAllocation);
mRsYuvToRGB.forEach(mARGBOutputAllocation);
mARGBOutputAllocation.copyTo(mBitmap);
mUI.onFrameAvailable(mBitmap, false);
}
}
}
}
}
}
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