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/*
* 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 com.android.camera;
import android.content.Context;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import com.android.camera.WideAnglePanoramaModule.INotifier;
/**
* A singleton to handle the processing of each frame by {@link Mosaic}.
*/
public class MosaicFrameProcessor {
private static final String TAG = "MosaicFrameProcessor";
public static final int MAX_HORIZONAL_ANGLE = 180;
public static final int MAX_VERTICAL_ANGLE = 180;
public static final int MSG_PANORAMA_TIP = 0x0001;
public static final int MSG_CAPTURE_SUCCESS = 0x0002;
public static final int MSG_CAPTURE_FAILED = 0x0003;
public static final int MSG_UPDATE_UI = 0x0004;
/** Panorama direction unknown. */
public final static int DIRECTION_UNKNOW = 0x00000000;
/** Panorama direction left to right. */
public final static int DIRECTION_LEFTTORIGHT = 0x00000001;
/** Panorama direction right to left. */
public final static int DIRECTION_RIGHTTOLEFT = 0x00000002;
/** Panorama direction up to down. */
public final static int DIRECTION_UPTODOWN = 0x00000004;
/** Panorama direction down to up. */
public final static int DIRECTION_DOWMTOUP = 0x00000008;
private int mPreviewWidth;
private int mPreviewHeight;
private Handler mThreadHandler = null;
private long mHandler = 0;
private boolean mIsActive = false;
private INotifier mPanoNotifier;
private static MosaicFrameProcessor sMosaicFrameProcessor; // singleton
static {
System.loadLibrary("jni_snapcammosaic");
}
public static MosaicFrameProcessor getInstance() {
if (sMosaicFrameProcessor == null) {
sMosaicFrameProcessor = new MosaicFrameProcessor();
}
return sMosaicFrameProcessor;
}
public synchronized boolean IsInited() {
return (mHandler != 0 && mIsActive);
}
public synchronized int Init(Context context, int maxFrameCount, int width, int height,
INotifier notifier) {
Log.v(TAG, "Init <----");
Uninit();
mPanoNotifier = notifier;
mThreadHandler = new Handler(context.getMainLooper(), new Handler.Callback() {
@Override
public boolean handleMessage(Message msg) {
if (mPanoNotifier != null) {
mPanoNotifier.onNotify(msg.what, msg.obj);
}
return true;
}
});
mPreviewWidth = width;
mPreviewHeight = height;
mHandler = _InitMosaic(context, this, maxFrameCount, width, height);
mIsActive = (mHandler != 0);
Log.v(TAG, "Init mHandler: " + mHandler + " ---->");
return mIsActive ? 0 : -1;
}
public synchronized void Uninit() {
if (mHandler != 0) {
Log.v(TAG, "Unint <----");
mIsActive = false;
mThreadHandler = null;
_UninitMosaic(mHandler);
mHandler = 0;
Log.v(TAG, "Unint ---->");
}
}
public synchronized int Process(byte[] data, int width, int height) {
int res = -1;
if (IsInited() && data != null && mPreviewWidth == width && mPreviewHeight == height) {
Log.v(TAG, "Process <----");
res = _ProcessMosaic(mHandler, data, width, height);
Log.v(TAG, "Process res " + res + " ---->");
}
else {
Log.v(TAG, "Process Error " + " mWidth " + mPreviewWidth + " mHeight " + mPreviewHeight
+ " width " + width + " height " + height + " data " + (data != null));
}
return res;
}
public synchronized int StopProcessing() {
int res = -1;
if (IsInited()) {
Log.v(TAG, "StopProcessing <----");
mIsActive = false;
res = _StopProcessMosaic(mHandler);
Log.v(TAG, "StopProcessing res " + res + " ---->");
}
return res;
}
public int onNotify(int key, Object obj) {
if (mThreadHandler != null && mHandler != 0) {
Message msg = new Message();
msg.what = key;
msg.obj = obj;
mThreadHandler.sendMessage(msg);
}
return 0;
}
public native long _InitMosaic(Context context, Object thiz, int maxFrameCount, int width,
int height);
public native int _UninitMosaic(long handler);
public native int _StopProcessMosaic(long handler);
public native int _ProcessMosaic(long handler, byte[] data, int width, int height);
}
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