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Diffstat (limited to 'src/com/android/camera/mpo/MpoData.java')
| -rw-r--r-- | src/com/android/camera/mpo/MpoData.java | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/src/com/android/camera/mpo/MpoData.java b/src/com/android/camera/mpo/MpoData.java new file mode 100644 index 000000000..7cd431ebe --- /dev/null +++ b/src/com/android/camera/mpo/MpoData.java @@ -0,0 +1,184 @@ +/* + * 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.util.ArrayList; +import java.util.List; + +import com.android.camera.mpo.MpoTag.MpEntry; + +public class MpoData { + + private MpoImageData mPrimaryMpoImage; + private ArrayList<MpoImageData> mAuxiliaryImages = new ArrayList<MpoImageData>(); + + public MpoData() { + } + + public void setPrimaryMpoImage(MpoImageData image) { + mPrimaryMpoImage = image; + addDefaultAttribIfdTags(mPrimaryMpoImage, 1); + addDefaultIndexIfdTags(); + } + + public void addAuxiliaryMpoImage(MpoImageData image) { + mAuxiliaryImages.add(image); + int imageNum = getAuxiliaryImageCount() + ((mPrimaryMpoImage == null) ? 0 : 1); + addDefaultAttribIfdTags(image, imageNum); + } + + public boolean removeAuxiliaryMpoImage(MpoImageData image) { + boolean ret = mAuxiliaryImages.remove(image); + return ret; + } + + public MpoImageData getPrimaryMpoImage() { + return mPrimaryMpoImage; + } + + public List<MpoImageData> getAuxiliaryMpoImages() { + return mAuxiliaryImages; + } + + public int getAuxiliaryImageCount() { + return mAuxiliaryImages.size(); + } + + public void addDefaultAttribIfdTags(MpoImageData image, int imageNum) { + MpoTag mpFormatVersionTag = new MpoTag((short) MpoInterface.TAG_MP_FORMAT_VERSION, + MpoTag.TYPE_UNDEFINED, 4, MpoIfdData.TYPE_MP_ATTRIB_IFD, true); + mpFormatVersionTag.setValue(MpoIfdData.MP_FORMAT_VER_VALUE); + image.addTag(mpFormatVersionTag); + + MpoTag imageNumTag = new MpoTag((short) MpoInterface.TAG_IMAGE_NUMBER, + MpoTag.TYPE_UNSIGNED_LONG, 1, MpoIfdData.TYPE_MP_ATTRIB_IFD, false); + imageNumTag.setValue(imageNum); + image.addTag(imageNumTag); + } + + public void addDefaultIndexIfdTags() { + if (mPrimaryMpoImage == null) + throw new IllegalArgumentException("Primary Mpo Image has not been set"); + if (getAuxiliaryImageCount() == 0) + throw new IllegalArgumentException("No auxiliary images have been added"); + + MpoTag mpFormatVersionTag = mPrimaryMpoImage.getTag( + (short) MpoInterface.TAG_MP_FORMAT_VERSION, MpoIfdData.TYPE_MP_INDEX_IFD); + if (mpFormatVersionTag == null) { + mpFormatVersionTag = new MpoTag((short) MpoInterface.TAG_MP_FORMAT_VERSION, + MpoTag.TYPE_UNDEFINED, 4, MpoIfdData.TYPE_MP_INDEX_IFD, true); + mpFormatVersionTag.setValue(MpoIfdData.MP_FORMAT_VER_VALUE); + mPrimaryMpoImage.addTag(mpFormatVersionTag); + } + + MpoTag numImagesTag = mPrimaryMpoImage.getTag((short) MpoInterface.TAG_NUM_IMAGES, + MpoIfdData.TYPE_MP_INDEX_IFD); + if (numImagesTag == null) { + numImagesTag = new MpoTag((short) MpoInterface.TAG_NUM_IMAGES, + MpoTag.TYPE_UNSIGNED_LONG, 1, MpoIfdData.TYPE_MP_INDEX_IFD, false); + } + numImagesTag.setValue(getAuxiliaryImageCount() + 1); + mPrimaryMpoImage.addTag(numImagesTag); + + // check, create and add required tags + MpoTag mpEntryTag = new MpoTag((short) MpoInterface.TAG_MP_ENTRY, MpoTag.TYPE_UNDEFINED, + MpoTag.SIZE_UNDEFINED, MpoIfdData.TYPE_MP_INDEX_IFD, false); + ArrayList<MpEntry> mpEntries = new ArrayList<MpEntry>(getAuxiliaryImageCount() + 1); + mpEntries.add(new MpEntry()); // primary image + for (int i = 0; i < getAuxiliaryImageCount(); i++) { + mpEntries.add(new MpEntry()); // aux images + } + mpEntryTag.setValue(mpEntries); + mPrimaryMpoImage.addTag(mpEntryTag); + } + + public void updateAllTags() { + updateAttribIfdTags(); + updateIndexIfdTags(); + } + + private void updateIndexIfdTags() { + if (mPrimaryMpoImage == null) + throw new IllegalArgumentException("Primary Mpo Image has not been set"); + if (getAuxiliaryImageCount() == 0) + throw new IllegalArgumentException("No auxiliary images have been added"); + + MpoTag numImagesTag = mPrimaryMpoImage.getTag((short) MpoInterface.TAG_NUM_IMAGES, + MpoIfdData.TYPE_MP_INDEX_IFD); + if (numImagesTag == null) { + numImagesTag = new MpoTag((short) MpoInterface.TAG_NUM_IMAGES, + MpoTag.TYPE_UNSIGNED_LONG, 1, MpoIfdData.TYPE_MP_INDEX_IFD, false); + } + numImagesTag.setValue(getAuxiliaryImageCount() + 1); + mPrimaryMpoImage.addTag(numImagesTag); + + // check, create and add required tags + MpoTag mpEntryTag = new MpoTag((short) MpoInterface.TAG_MP_ENTRY, MpoTag.TYPE_UNDEFINED, + MpoTag.SIZE_UNDEFINED, MpoIfdData.TYPE_MP_INDEX_IFD, false); + ArrayList<MpEntry> mpEntries = new ArrayList<MpEntry>(getAuxiliaryImageCount() + 1); + + int imgOffset = 0; + // primary image + MpEntry entry = new MpEntry(1 << 29, mPrimaryMpoImage.calculateImageSize(), imgOffset); + mpEntries.add(entry); + imgOffset += mPrimaryMpoImage.calculateImageSize(); + + for (MpoImageData image : getAuxiliaryMpoImages()) { + int imageSize = image.calculateImageSize(); + entry = new MpEntry(0x020002, imageSize, imgOffset); + mpEntries.add(entry); // aux images + imgOffset += imageSize; + } + mpEntryTag.setValue(mpEntries); + mPrimaryMpoImage.addTag(mpEntryTag); + } + + private void updateAttribIfdTags() { + if (mPrimaryMpoImage == null) + throw new IllegalArgumentException("Primary Mpo Image has not been set"); + if (getAuxiliaryImageCount() == 0) + throw new IllegalArgumentException("No auxiliary images have been added"); + + int imageNum = 1; + MpoTag imageNumTag = null; + + imageNumTag = new MpoTag((short) MpoInterface.TAG_IMAGE_NUMBER, MpoTag.TYPE_UNSIGNED_LONG, + 1, MpoIfdData.TYPE_MP_ATTRIB_IFD, false); + imageNumTag.setValue(0xFFFFFFFFL); + mPrimaryMpoImage.addTag(imageNumTag); + + for (MpoImageData image : getAuxiliaryMpoImages()) { + imageNumTag = new MpoTag((short) MpoInterface.TAG_IMAGE_NUMBER, + MpoTag.TYPE_UNSIGNED_LONG, 1, MpoIfdData.TYPE_MP_ATTRIB_IFD, false); + imageNumTag.setValue(imageNum++); + image.addTag(imageNumTag); + } + } +}
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