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TIFFPage.write did not expect subIFDs which do not contain image data

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This commit is contained in:
Oliver Schmidtmer 2016-05-03 13:13:00 +02:00
parent e0434a1dcb
commit 099dbb0073
1 changed files with 14 additions and 8 deletions
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22
contrib/src/main/java/com/twelvemonkeys/contrib/tiff/TIFFUtilities.java
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@ -328,28 +328,34 @@ public class TIFFUtilities {
Entry e = it.next();
if (e.getValue() instanceof Directory) {
List<Entry> subIFD = writeDirectoryData((Directory) e.getValue(), outputStream);
new TIFFEntry((Integer) e.getIdentifier(), new AbstractDirectory(subIFD) {
new TIFFEntry((Integer) e.getIdentifier(), TIFF.TYPE_IFD, new AbstractDirectory(subIFD) {
});
}
newIFD.add(e);
}
long[] offsets = new long[0];
long[] byteCounts = new long[0];
int[] newOffsets = new int[0];
Entry stripOffsetsEntry = IFD.getEntryById(TIFF.TAG_STRIP_OFFSETS);
long[] offsets = getValueAsLongArray(stripOffsetsEntry);
Entry stripByteCountsEntry = IFD.getEntryById(TIFF.TAG_STRIP_BYTE_COUNTS);
if (stripOffsetsEntry != null && stripByteCountsEntry != null) {
offsets = getValueAsLongArray(stripOffsetsEntry);
byteCounts = getValueAsLongArray(stripByteCountsEntry);
Entry stipByteCountsEntry = IFD.getEntryById(TIFF.TAG_STRIP_BYTE_COUNTS);
long[] byteCounts = getValueAsLongArray(stipByteCountsEntry);
newOffsets = writeData(offsets, byteCounts, outputStream);
int[] newOffsets = writeData(offsets, byteCounts, outputStream);
newIFD.remove(stripOffsetsEntry);
newIFD.add(new TIFFEntry(TIFF.TAG_STRIP_OFFSETS, newOffsets));
newIFD.remove(stripOffsetsEntry);
newIFD.add(new TIFFEntry(TIFF.TAG_STRIP_OFFSETS, newOffsets));
}
Entry oldJpegData = IFD.getEntryById(TIFF.TAG_JPEG_INTERCHANGE_FORMAT);
Entry oldJpegDataLength = IFD.getEntryById(TIFF.TAG_JPEG_INTERCHANGE_FORMAT_LENGTH);
if (oldJpegData != null && oldJpegData.valueCount() > 0 && oldJpegDataLength != null && oldJpegDataLength.valueCount() > 0) {
if (!Arrays.equals(getValueAsLongArray(oldJpegData), offsets) || !Arrays.equals(getValueAsLongArray(oldJpegDataLength), byteCounts)) {
// data already written from TIFF.TAG_STRIP_OFFSETS
offsets = getValueAsLongArray(oldJpegData);
byteCounts = getValueAsLongArray(oldJpegDataLength);
newOffsets = writeData(offsets, byteCounts, outputStream);