protected void validateParameters(AVList list, int srcWidth, int srcHeight)
throws IllegalArgumentException {
if (null == list || 0 == list.getValues().size()) {
String reason = Logging.getMessage("nullValue.AVListIsNull");
String msg = Logging.getMessage("GeotiffWriter.GeoKeysMissing", reason);
Logging.logger().finest(msg);
throw new IllegalArgumentException(msg);
}
if (!(srcWidth > 0 && srcHeight > 0)) {
String msg = Logging.getMessage("generic.InvalidImageSize", srcWidth, srcHeight);
Logging.logger().finest(msg);
throw new IllegalArgumentException(msg);
}
if (list.hasKey(AVKey.WIDTH)) {
int width = (Integer) list.getValue(AVKey.WIDTH);
if (width != srcWidth) {
String msg = Logging.getMessage("GeotiffWriter.ImageWidthMismatch", width, srcWidth);
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
} else list.setValue(AVKey.WIDTH, srcWidth);
if (list.hasKey(AVKey.HEIGHT)) {
int height = (Integer) list.getValue(AVKey.HEIGHT);
if (height != srcHeight) {
String msg = Logging.getMessage("GeotiffWriter.ImageHeightMismatch", height, srcHeight);
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
} else list.setValue(AVKey.HEIGHT, srcHeight);
Sector sector = null;
if (list.hasKey(AVKey.SECTOR)) sector = (Sector) list.getValue(AVKey.SECTOR);
if (null == sector) {
String msg = Logging.getMessage("GeotiffWriter.NoSectorSpecified");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
if (!list.hasKey(AVKey.COORDINATE_SYSTEM)) {
String msg = Logging.getMessage("GeotiffWriter.GeoKeysMissing", AVKey.COORDINATE_SYSTEM);
Logging.logger().finest(msg);
// throw new IllegalArgumentException(msg);
// assume Geodetic Coordinate System
list.setValue(AVKey.COORDINATE_SYSTEM, AVKey.COORDINATE_SYSTEM_GEOGRAPHIC);
}
if (!list.hasKey(AVKey.PROJECTION_EPSG_CODE)) {
if (isGeographic(list)) {
// assume WGS84
list.setValue(AVKey.PROJECTION_EPSG_CODE, GeoTiff.GCS.WGS_84);
} else {
String msg = Logging.getMessage("GeotiffWriter.GeoKeysMissing", AVKey.PROJECTION_EPSG_CODE);
Logging.logger().finest(msg);
throw new IllegalArgumentException(msg);
}
}
// if PIXEL_WIDTH is specified, we are not overriding it because UTM images
// will have different pixel size
if (!list.hasKey(AVKey.PIXEL_WIDTH)) {
if (isGeographic(list)) {
double pixelWidth = sector.getDeltaLonDegrees() / (double) srcWidth;
list.setValue(AVKey.PIXEL_WIDTH, pixelWidth);
} else {
String msg = Logging.getMessage("GeotiffWriter.GeoKeysMissing", AVKey.PIXEL_WIDTH);
Logging.logger().finest(msg);
throw new IllegalArgumentException(msg);
}
}
// if PIXEL_HEIGHT is specified, we are not overriding it
// because UTM images will have different pixel size
if (!list.hasKey(AVKey.PIXEL_HEIGHT)) {
if (isGeographic(list)) {
double pixelHeight = sector.getDeltaLatDegrees() / (double) srcHeight;
list.setValue(AVKey.PIXEL_HEIGHT, pixelHeight);
} else {
String msg = Logging.getMessage("GeotiffWriter.GeoKeysMissing", AVKey.PIXEL_HEIGHT);
Logging.logger().finest(msg);
throw new IllegalArgumentException(msg);
}
}
if (!list.hasKey(AVKey.PIXEL_FORMAT)) {
String msg = Logging.getMessage("GeotiffWriter.GeoKeysMissing", AVKey.PIXEL_FORMAT);
Logging.logger().finest(msg);
throw new IllegalArgumentException(msg);
} else {
String pixelFormat = list.getStringValue(AVKey.PIXEL_FORMAT);
if (!AVKey.ELEVATION.equals(pixelFormat) && !AVKey.IMAGE.equals(pixelFormat)) {
String msg =
Logging.getMessage("Geotiff.UnknownGeoKeyValue", pixelFormat, AVKey.PIXEL_FORMAT);
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
}
// validate elevation parameters
if (AVKey.ELEVATION.equals(list.getValue(AVKey.PIXEL_FORMAT))) {
if (!list.hasKey(AVKey.DATA_TYPE)) {
String msg = Logging.getMessage("GeotiffWriter.GeoKeysMissing", AVKey.DATA_TYPE);
Logging.logger().finest(msg);
throw new IllegalArgumentException(msg);
}
String type = list.getStringValue(AVKey.DATA_TYPE);
if (!AVKey.FLOAT32.equals(type) && !AVKey.INT16.equals(type)) {
String msg = Logging.getMessage("Geotiff.UnknownGeoKeyValue", type, AVKey.DATA_TYPE);
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
}
if (!list.hasKey(AVKey.ORIGIN)) {
// set UpperLeft corner as the origin, if not specified
LatLon origin = new LatLon(sector.getMaxLatitude(), sector.getMinLongitude());
list.setValue(AVKey.ORIGIN, origin);
}
if (list.hasKey(AVKey.BYTE_ORDER)
&& !AVKey.BIG_ENDIAN.equals(list.getStringValue(AVKey.BYTE_ORDER))) {
String msg =
Logging.getMessage(
"generic.UnrecognizedByteOrder", list.getStringValue(AVKey.BYTE_ORDER));
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
if (!list.hasKey(AVKey.DATE_TIME)) {
// add NUL (\0) termination as required by TIFF v6 spec (20 bytes length)
String timestamp = String.format("%1$tY:%1$tm:%1$td %tT\0", Calendar.getInstance());
list.setValue(AVKey.DATE_TIME, timestamp);
}
if (!list.hasKey(AVKey.VERSION)) {
list.setValue(AVKey.VERSION, Version.getVersion());
}
}
private static boolean isElevation(AVList params) {
return (null != params
&& params.hasKey(AVKey.PIXEL_FORMAT)
&& AVKey.ELEVATION.equals(params.getValue(AVKey.PIXEL_FORMAT)));
}
public void writeRaster(BufferWrapperRaster raster) throws IOException, IllegalArgumentException {
if (raster == null) {
String msg = Logging.getMessage("nullValue.RasterIsNull");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
if (0 == raster.getWidth() || 0 == raster.getHeight()) {
String msg =
Logging.getMessage("generic.InvalidImageSize", raster.getWidth(), raster.getHeight());
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
this.validateParameters(raster, raster.getWidth(), raster.getHeight());
int bitsPerSample, samplesPerPixel, sampleFormat, photometric, numBands;
if (AVKey.ELEVATION.equals(raster.getValue(AVKey.PIXEL_FORMAT))) {
if (AVKey.FLOAT32.equals(raster.getValue(AVKey.DATA_TYPE))) {
numBands = 1;
samplesPerPixel = Tiff.SamplesPerPixel.MONOCHROME;
sampleFormat = Tiff.SampleFormat.IEEEFLOAT;
photometric = Tiff.Photometric.Grayscale_BlackIsZero;
bitsPerSample = Tiff.BitsPerSample.ELEVATIONS_FLOAT32;
} else if (AVKey.INT16.equals(raster.getValue(AVKey.DATA_TYPE))) {
numBands = 1;
samplesPerPixel = Tiff.SamplesPerPixel.MONOCHROME;
sampleFormat = Tiff.SampleFormat.SIGNED;
photometric = Tiff.Photometric.Grayscale_BlackIsZero;
bitsPerSample = Tiff.BitsPerSample.ELEVATIONS_INT16;
} else {
String msg =
Logging.getMessage("GeotiffWriter.UnsupportedType", raster.getValue(AVKey.DATA_TYPE));
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
} else if (AVKey.IMAGE.equals(raster.getValue(AVKey.PIXEL_FORMAT))) {
if (AVKey.INT8.equals(raster.getValue(AVKey.DATA_TYPE))) {
numBands = 1;
samplesPerPixel = Tiff.SamplesPerPixel.MONOCHROME;
sampleFormat = Tiff.SampleFormat.UNSIGNED;
photometric = Tiff.Photometric.Grayscale_BlackIsZero;
bitsPerSample = Tiff.BitsPerSample.MONOCHROME_UINT8;
} else if (AVKey.INT16.equals(raster.getValue(AVKey.DATA_TYPE))) {
numBands = 1;
samplesPerPixel = Tiff.SamplesPerPixel.MONOCHROME;
sampleFormat = Tiff.SampleFormat.UNSIGNED;
photometric = Tiff.Photometric.Grayscale_BlackIsZero;
bitsPerSample = Tiff.BitsPerSample.MONOCHROME_UINT16;
} else if (AVKey.INT32.equals(raster.getValue(AVKey.DATA_TYPE))) {
numBands = 3;
// TODO check ALPHA / Transparency
samplesPerPixel = Tiff.SamplesPerPixel.RGB;
sampleFormat = Tiff.SampleFormat.UNSIGNED;
photometric = Tiff.Photometric.Color_RGB;
bitsPerSample = Tiff.BitsPerSample.RGB;
} else {
String msg =
Logging.getMessage("GeotiffWriter.UnsupportedType", raster.getValue(AVKey.DATA_TYPE));
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
} else {
String msg =
Logging.getMessage("GeotiffWriter.UnsupportedType", raster.getValue(AVKey.PIXEL_FORMAT));
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
int bytesPerSample = numBands * bitsPerSample / Byte.SIZE;
this.writeTiffHeader();
// write the image data...
int numRows = raster.getHeight();
int numCols = raster.getWidth();
int[] stripCounts = new int[numRows];
int[] stripOffsets = new int[numRows];
BufferWrapper srcBuffer = raster.getBuffer();
ByteBuffer dataBuff = ByteBuffer.allocateDirect(numCols * bytesPerSample);
switch (bitsPerSample) {
// case Tiff.BitsPerSample.MONOCHROME_BYTE:
case Tiff.BitsPerSample.MONOCHROME_UINT8:
{
for (int y = 0; y < numRows; y++) {
stripOffsets[y] = (int) this.theChannel.position();
stripCounts[y] = numCols * bytesPerSample;
dataBuff.clear();
for (int x = 0; x < numCols * numBands; x++) {
dataBuff.put(srcBuffer.getByte(x + y * numCols));
}
dataBuff.flip();
this.theChannel.write(dataBuff);
}
}
break;
// case Tiff.BitsPerSample.MONOCHROME_UINT16:
case Tiff.BitsPerSample.ELEVATIONS_INT16:
{
for (int y = 0; y < numRows; y++) {
stripOffsets[y] = (int) this.theChannel.position();
stripCounts[y] = numCols * bytesPerSample;
dataBuff.clear();
for (int x = 0; x < numCols * numBands; x++) {
dataBuff.putShort(srcBuffer.getShort(x + y * numCols));
}
dataBuff.flip();
this.theChannel.write(dataBuff);
}
}
break;
case Tiff.BitsPerSample.ELEVATIONS_FLOAT32:
{
for (int y = 0; y < numRows; y++) {
stripOffsets[y] = (int) this.theChannel.position();
stripCounts[y] = numCols * bytesPerSample;
dataBuff.clear();
for (int x = 0; x < numCols * numBands; x++) {
dataBuff.putFloat(srcBuffer.getFloat(x + y * numCols));
}
dataBuff.flip();
this.theChannel.write(dataBuff);
}
}
break;
case Tiff.BitsPerSample.RGB:
{
for (int y = 0; y < numRows; y++) {
stripOffsets[y] = (int) this.theChannel.position();
stripCounts[y] = numCols * bytesPerSample;
dataBuff.clear();
for (int x = 0; x < numCols; x++) {
int color = srcBuffer.getInt(x + y * numCols);
byte red = (byte) (0xFF & (color >> 16));
byte green = (byte) (0xFF & (color >> 8));
byte blue = (byte) (0xFF & color);
// dataBuff.put(0xFF & (color >> 24)); // alpha
dataBuff.put(red).put(green).put(blue);
}
dataBuff.flip();
this.theChannel.write(dataBuff);
}
}
break;
}
// write out values for the tiff tags and build up the IFD. These are supposed to be sorted; for
// now
// do this manually here.
ArrayList<TiffIFDEntry> ifds = new ArrayList<TiffIFDEntry>(10);
ifds.add(new TiffIFDEntry(Tiff.Tag.IMAGE_WIDTH, Tiff.Type.LONG, 1, numCols));
ifds.add(new TiffIFDEntry(Tiff.Tag.IMAGE_LENGTH, Tiff.Type.LONG, 1, numRows));
long offset = this.theChannel.position();
if (Tiff.BitsPerSample.RGB == bitsPerSample) {
short[] bps = new short[numBands];
for (int i = 0; i < numBands; i++) {
bps[i] = Tiff.BitsPerSample.MONOCHROME_BYTE;
}
this.theChannel.write(ByteBuffer.wrap(this.getBytes(bps)));
ifds.add(new TiffIFDEntry(Tiff.Tag.BITS_PER_SAMPLE, Tiff.Type.SHORT, numBands, offset));
} else ifds.add(new TiffIFDEntry(Tiff.Tag.BITS_PER_SAMPLE, Tiff.Type.SHORT, 1, bitsPerSample));
ifds.add(new TiffIFDEntry(Tiff.Tag.COMPRESSION, Tiff.Type.LONG, 1, Tiff.Compression.NONE));
ifds.add(new TiffIFDEntry(Tiff.Tag.PHOTO_INTERPRETATION, Tiff.Type.SHORT, 1, photometric));
ifds.add(new TiffIFDEntry(Tiff.Tag.SAMPLES_PER_PIXEL, Tiff.Type.SHORT, 1, samplesPerPixel));
ifds.add(new TiffIFDEntry(Tiff.Tag.ORIENTATION, Tiff.Type.SHORT, 1, Tiff.Orientation.DEFAULT));
ifds.add(
new TiffIFDEntry(
Tiff.Tag.PLANAR_CONFIGURATION, Tiff.Type.SHORT, 1, Tiff.PlanarConfiguration.CHUNKY));
ifds.add(new TiffIFDEntry(Tiff.Tag.SAMPLE_FORMAT, Tiff.Type.SHORT, 1, sampleFormat));
offset = this.theChannel.position();
dataBuff = ByteBuffer.allocateDirect(stripOffsets.length * INTEGER_SIZEOF);
for (int stripOffset : stripOffsets) {
dataBuff.putInt(stripOffset);
}
dataBuff.flip();
this.theChannel.write(dataBuff);
ifds.add(new TiffIFDEntry(Tiff.Tag.STRIP_OFFSETS, Tiff.Type.LONG, stripOffsets.length, offset));
ifds.add(new TiffIFDEntry(Tiff.Tag.ROWS_PER_STRIP, Tiff.Type.LONG, 1, 1));
offset = this.theChannel.position();
dataBuff.clear(); // stripOffsets and stripCounts are same length by design; can reuse the
// ByteBuffer...
for (int stripCount : stripCounts) {
dataBuff.putInt(stripCount);
}
dataBuff.flip();
this.theChannel.write(dataBuff);
ifds.add(
new TiffIFDEntry(Tiff.Tag.STRIP_BYTE_COUNTS, Tiff.Type.LONG, stripCounts.length, offset));
this.appendGeoTiff(ifds, raster);
this.writeIFDs(ifds);
}