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Write LONG8 offsets for BigTIFF

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This commit is contained in:
Harald Kuhr 2022-05-05 15:53:20 +02:00
parent ab13fdd09d
commit ae138c3b4e
1 changed files with 8 additions and 6 deletions
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14
imageio/imageio-tiff/src/main/java/com/twelvemonkeys/imageio/plugins/tiff/TIFFImageWriter.java
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@ -182,6 +182,8 @@ public final class TIFFImageWriter extends ImageWriterBase {
throw new IllegalArgumentException("Unknown bit/bandOffsets for sample model: " + sampleModel);
}
short offsetType = tiffWriter.offsetSize() == 4 ? TIFF.TYPE_LONG : TIFF.TYPE_LONG8;
Map<Integer, Entry> entries = new LinkedHashMap<>();
// Copy metadata to output
Directory metadataIFD = metadata.getIFD();
@ -195,9 +197,9 @@ public final class TIFFImageWriter extends ImageWriterBase {
// TODO: RowsPerStrip - can be entire image (or even 2^32 -1), but it's recommended to write "about 8K bytes" per strip
entries.put(TIFF.TAG_ROWS_PER_STRIP, new TIFFEntry(TIFF.TAG_ROWS_PER_STRIP, renderedImage.getHeight()));
// StripByteCounts - for no compression, entire image data...
entries.put(TIFF.TAG_STRIP_BYTE_COUNTS, new TIFFEntry(TIFF.TAG_STRIP_BYTE_COUNTS, -1)); // Updated later
entries.put(TIFF.TAG_STRIP_BYTE_COUNTS, new TIFFEntry(TIFF.TAG_STRIP_BYTE_COUNTS, offsetType, -1)); // Updated later
// StripOffsets - can be offset to single strip only
entries.put(TIFF.TAG_STRIP_OFFSETS, new TIFFEntry(TIFF.TAG_STRIP_OFFSETS, -1)); // Updated later
entries.put(TIFF.TAG_STRIP_OFFSETS, new TIFFEntry(TIFF.TAG_STRIP_OFFSETS, offsetType, -1)); // Updated later
// TODO: If tiled, write tile indexes etc
// Depending on param.getTilingMode
@ -213,8 +215,8 @@ public final class TIFFImageWriter extends ImageWriterBase {
long stripOffset = streamPosition + tiffWriter.offsetSize() + ifdSize + tiffWriter.offsetSize();
long stripByteCount = ((long) renderedImage.getWidth() * renderedImage.getHeight() * pixelSize + 7L) / 8L;
entries.put(TIFF.TAG_STRIP_OFFSETS, new TIFFEntry(TIFF.TAG_STRIP_OFFSETS, TIFF.TYPE_LONG, stripOffset));
entries.put(TIFF.TAG_STRIP_BYTE_COUNTS, new TIFFEntry(TIFF.TAG_STRIP_BYTE_COUNTS, TIFF.TYPE_LONG, stripByteCount));
entries.put(TIFF.TAG_STRIP_OFFSETS, new TIFFEntry(TIFF.TAG_STRIP_OFFSETS, offsetType, stripOffset));
entries.put(TIFF.TAG_STRIP_BYTE_COUNTS, new TIFFEntry(TIFF.TAG_STRIP_BYTE_COUNTS, offsetType, stripByteCount));
long ifdPointer = tiffWriter.writeIFD(entries.values(), imageOutput); // NOTE: Writer takes care of ordering tags
nextIFDPointerOffset = imageOutput.getStreamPosition();
@ -265,8 +267,8 @@ public final class TIFFImageWriter extends ImageWriterBase {
// Update IFD0-pointer, and write IFD
if (compression != TIFFBaseline.COMPRESSION_NONE) {
entries.put(TIFF.TAG_STRIP_OFFSETS, new TIFFEntry(TIFF.TAG_STRIP_OFFSETS, TIFF.TYPE_LONG, stripOffset));
entries.put(TIFF.TAG_STRIP_BYTE_COUNTS, new TIFFEntry(TIFF.TAG_STRIP_BYTE_COUNTS, TIFF.TYPE_LONG, stripByteCount));
entries.put(TIFF.TAG_STRIP_OFFSETS, new TIFFEntry(TIFF.TAG_STRIP_OFFSETS, offsetType, stripOffset));
entries.put(TIFF.TAG_STRIP_BYTE_COUNTS, new TIFFEntry(TIFF.TAG_STRIP_BYTE_COUNTS, offsetType, stripByteCount));
long ifdPointer = tiffWriter.writeIFD(entries.values(), imageOutput); // NOTE: Writer takes care of ordering tags