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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.mpo;
import java.nio.BufferOverflowException;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import android.util.Log;
import com.android.camera.exif.ExifTag;
public class MpoTag extends ExifTag {
private static final String TAG = "MpoTag";
static final int TAG_SIZE = 12;
MpoTag(short tagId, short type, int componentCount, int ifd, boolean hasDefinedComponentCount) {
super(tagId, type, componentCount, ifd, hasDefinedComponentCount);
}
public boolean setValue(List<MpEntry> entries) {
if (getTagId() != (short) MpoInterface.TAG_MP_ENTRY) {
return false;
}
byte[] bytes = new byte[entries.size() * MpEntry.SIZE];
for (int i = 0; i < entries.size(); i++) {
MpEntry entry = entries.get(i);
entry.getBytes(ByteBuffer.wrap(bytes, i * MpEntry.SIZE, MpEntry.SIZE));
}
return setValue(bytes);
}
public List<MpEntry> getMpEntryValue() {
if (getTagId() != (short) MpoInterface.TAG_MP_ENTRY) {
return null;
}
byte[] bytes = getValueAsBytes();
List<MpEntry> entries = new ArrayList<MpEntry>(bytes.length / MpEntry.SIZE);
for (int i = 0; i < bytes.length; i += MpEntry.SIZE) {
entries.add(new MpEntry(ByteBuffer.wrap(bytes, i, MpEntry.SIZE)));
}
return entries;
}
static class MpEntry {
static final int SIZE = 16;
private int mImageAttrib;
private int mImageSize;
private int mImageOffset;
private short mDependantImage1;
private short mDependantImage2;
public MpEntry() {
this(0, 0, 0, (short) 0, (short) 0);
}
public MpEntry(int imageAttrib, int imageSize, int imageOffset) {
this(imageAttrib, imageSize, imageOffset, (short) 0, (short) 0);
}
public MpEntry(int imageAttrib, int imageSize, int imageOffset, short dependantImage1,
short dependantImage2) {
mImageAttrib = imageAttrib;
mImageSize = imageSize;
mImageOffset = imageOffset;
mDependantImage1 = dependantImage1;
mDependantImage2 = dependantImage2;
}
public MpEntry(ByteBuffer buffer) {
mImageAttrib = buffer.getInt();
mImageSize = buffer.getInt();
mImageOffset = buffer.getInt();
mDependantImage1 = buffer.getShort();
mDependantImage2 = buffer.getShort();
}
public int getImageAttrib() {
return mImageAttrib;
}
public int getImageSize() {
return mImageSize;
}
public int getImageOffset() {
return mImageOffset;
}
public short getDependantImage1() {
return mDependantImage1;
}
public short getDependantImage2() {
return mDependantImage2;
}
public void setImageAttrib(int imageAttrib) {
mImageAttrib = imageAttrib;
}
public void setImageSize(int imageSize) {
mImageSize = imageSize;
}
public void setImageOffset(int imageOffset) {
mImageOffset = imageOffset;
}
public void setDependantImage1(short depImage1) {
mDependantImage1 = depImage1;
}
public void setDependantImage2(short depImage2) {
mDependantImage2 = depImage2;
}
public boolean getBytes(ByteBuffer buffer) {
try {
buffer.putInt(mImageAttrib);
buffer.putInt(mImageSize);
buffer.putInt(mImageOffset);
buffer.putShort(mDependantImage1);
buffer.putShort(mDependantImage2);
} catch (BufferOverflowException e) {
Log.w(TAG, "Buffer size too small");
return false;
}
return true;
}
}
}
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