private void writeEdges(int pixels[]) {
// NOTE: There is currently no mechanism for obtaining the edge data
// in any other format other than an INT_ARGB type BufferedImage.
// This may be easily remedied by providing alternative accessors.
nonMax = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
nonMax.getWritableTile(0, 0).setDataElements(0, 0, width, height, pixels);
}
public BufferedImage readBufferedImage() throws IOException {
colorModel = getColorModel();
sampleModel = getSampleModel();
WritableRaster raster = null;
BufferedImage image = j2krparam.getDestination();
int x = destinationRegion.x;
int y = destinationRegion.y;
destinationRegion.setLocation(j2krparam.getDestinationOffset());
if (image == null) {
// If the destination type is specified, use the color model of it.
ImageTypeSpecifier type = j2krparam.getDestinationType();
if (type != null) colorModel = type.getColorModel();
raster =
Raster.createWritableRaster(
sampleModel.createCompatibleSampleModel(
destinationRegion.x + destinationRegion.width,
destinationRegion.y + destinationRegion.height),
new Point(0, 0));
image =
new BufferedImage(colorModel, raster, colorModel.isAlphaPremultiplied(), new Hashtable());
} else raster = image.getWritableTile(0, 0);
destImage = image;
readSubsampledRaster(raster);
destinationRegion.setLocation(x, y);
destImage = null;
return image;
}
@Override
public BufferedImage getImage() {
int[] ss = new int[s.length];
for (int i = 0; i < ss.length; i++) {
int argb = s[i] == 1 ? 0xffffffff : 0xff000000;
ss[i] = argb;
}
BufferedImage image = new BufferedImage(cx, cy, BufferedImage.TYPE_INT_ARGB);
image.getWritableTile(0, 0).setDataElements(0, 0, image.getWidth(), image.getHeight(), ss);
return image;
}
public Raster readAsRaster() throws IOException {
BufferedImage image = j2krparam.getDestination();
WritableRaster raster = null;
if (image == null) {
sampleModel = getSampleModel();
raster =
Raster.createWritableRaster(
sampleModel.createCompatibleSampleModel(
destinationRegion.x + destinationRegion.width,
destinationRegion.y + destinationRegion.height),
new Point(0, 0));
} else raster = image.getWritableTile(0, 0);
readSubsampledRaster(raster);
return raster;
}
public RenderedImage decodeAsRenderedImage(int page) throws IOException {
if (page != 0) {
throw new IOException(JaiI18N.getString(JaiI18N.getString("WBMPImageDecoder0")));
}
input.read(); // TypeField
input.read(); // FixHeaderField
// Image width
int value = input.read();
int width = value & 0x7f;
while ((value & 0x80) == 0x80) {
width <<= 7;
value = input.read();
width |= (value & 0x7f);
}
// Image height
value = input.read();
int height = value & 0x7f;
while ((value & 0x80) == 0x80) {
height <<= 7;
value = input.read();
height |= (value & 0x7f);
}
// Create byte-packed bilevel image width an IndexColorModel
BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_BINARY);
// Get the image tile.
WritableRaster tile = bi.getWritableTile(0, 0);
// Get the SampleModel.
MultiPixelPackedSampleModel sm = (MultiPixelPackedSampleModel) bi.getSampleModel();
// Read the data.
input.readFully(
((DataBufferByte) tile.getDataBuffer()).getData(), 0, height * sm.getScanlineStride());
return bi;
}
public BufferedImage read(int imageIndex, ImageReadParam param) throws IOException {
checkIndex(imageIndex);
readHeader();
if (iis == null) throw new IllegalStateException("input is null");
BufferedImage img;
clearAbortRequest();
processImageStarted(imageIndex);
if (param == null) param = getDefaultReadParam();
sourceRegion = new Rectangle(0, 0, 0, 0);
destinationRegion = new Rectangle(0, 0, 0, 0);
computeRegions(
param, this.width, this.height, param.getDestination(), sourceRegion, destinationRegion);
scaleX = param.getSourceXSubsampling();
scaleY = param.getSourceYSubsampling();
// If the destination band is set used it
sourceBands = param.getSourceBands();
destBands = param.getDestinationBands();
seleBand = (sourceBands != null) && (destBands != null);
noTransform = destinationRegion.equals(new Rectangle(0, 0, width, height)) || seleBand;
if (!seleBand) {
sourceBands = new int[colorPlanes];
destBands = new int[colorPlanes];
for (int i = 0; i < colorPlanes; i++) destBands[i] = sourceBands[i] = i;
}
// If the destination is provided, then use it. Otherwise, create new one
bi = param.getDestination();
// Get the image data.
WritableRaster raster = null;
if (bi == null) {
if (sampleModel != null && colorModel != null) {
sampleModel =
sampleModel.createCompatibleSampleModel(
destinationRegion.width + destinationRegion.x,
destinationRegion.height + destinationRegion.y);
if (seleBand) sampleModel = sampleModel.createSubsetSampleModel(sourceBands);
raster = Raster.createWritableRaster(sampleModel, new Point(0, 0));
bi = new BufferedImage(colorModel, raster, false, null);
}
} else {
raster = bi.getWritableTile(0, 0);
sampleModel = bi.getSampleModel();
colorModel = bi.getColorModel();
noTransform &= destinationRegion.equals(raster.getBounds());
}
byte bdata[] = null; // buffer for byte data
if (sampleModel.getDataType() == DataBuffer.TYPE_BYTE)
bdata = (byte[]) ((DataBufferByte) raster.getDataBuffer()).getData();
readImage(bdata);
if (abortRequested()) processReadAborted();
else processImageComplete();
return bi;
}
