public BufferedImage filter(BufferedImage src, BufferedImage dst) {
int width = src.getWidth();
int height = src.getHeight();
int type = src.getType();
WritableRaster srcRaster = src.getRaster();
originalSpace = new Rectangle(0, 0, width, height);
transformedSpace = new Rectangle(0, 0, width, height);
transformSpace(transformedSpace);
if (dst == null) {
ColorModel dstCM = src.getColorModel();
dst =
new BufferedImage(
dstCM,
dstCM.createCompatibleWritableRaster(transformedSpace.width, transformedSpace.height),
dstCM.isAlphaPremultiplied(),
null);
}
WritableRaster dstRaster = dst.getRaster();
int[] inPixels = getRGB(src, 0, 0, width, height, null);
inPixels = filterPixels(width, height, inPixels, transformedSpace);
setRGB(dst, 0, 0, transformedSpace.width, transformedSpace.height, inPixels);
return dst;
}
public BufferedImage createCompatibleDestImage(BufferedImage src, ColorModel dstCM) {
if (dstCM == null) dstCM = src.getColorModel();
return new BufferedImage(
dstCM,
dstCM.createCompatibleWritableRaster(src.getWidth(), src.getHeight()),
dstCM.isAlphaPremultiplied(),
null);
}
public int filterRGB(int x, int y, int rgb) {
int R, G, B, color;
ColorModel cm = ColorModel.getRGBdefault();
if (x == -1) ;
R = cm.getRed(rgb) & 0xff;
G = cm.getGreen(rgb) & 0xff;
B = cm.getBlue(rgb) & 0xff;
if (R >= 100 && G >= 100 && B >= 100) color = 0xffffffff;
else color = 0xff000000;
return color;
}
public final BufferedImage filter(BufferedImage src, BufferedImage dst) {
if (src == dst) {
// awt.252=Source can't be same as the destination
throw new IllegalArgumentException(Messages.getString("awt.252")); // $NON-NLS-1$
}
ColorModel srcCM = src.getColorModel();
BufferedImage finalDst = null;
if (srcCM instanceof IndexColorModel
&& (iType != TYPE_NEAREST_NEIGHBOR || srcCM.getPixelSize() % 8 != 0)) {
src = ((IndexColorModel) srcCM).convertToIntDiscrete(src.getRaster(), true);
srcCM = src.getColorModel();
}
if (dst == null) {
dst = createCompatibleDestImage(src, srcCM);
} else {
if (!srcCM.equals(dst.getColorModel())) {
// Treat BufferedImage.TYPE_INT_RGB and
// BufferedImage.TYPE_INT_ARGB as same
if (!((src.getType() == BufferedImage.TYPE_INT_RGB
|| src.getType() == BufferedImage.TYPE_INT_ARGB)
&& (dst.getType() == BufferedImage.TYPE_INT_RGB
|| dst.getType() == BufferedImage.TYPE_INT_ARGB))) {
finalDst = dst;
dst = createCompatibleDestImage(src, srcCM);
}
}
}
// Skip alpha channel for TYPE_INT_RGB images
if (slowFilter(src.getRaster(), dst.getRaster()) != 0) {
// awt.21F=Unable to transform source
throw new ImagingOpException(Messages.getString("awt.21F")); // $NON-NLS-1$
// TODO - uncomment
// if (ippFilter(src.getRaster(), dst.getRaster(), src.getType()) !=
// 0)
// throw new ImagingOpException ("Unable to transform source");
}
if (finalDst != null) {
Graphics2D g = finalDst.createGraphics();
g.setComposite(AlphaComposite.Src);
g.drawImage(dst, 0, 0, null);
} else {
finalDst = dst;
}
return finalDst;
}
private static CharSequence recreateView(
String text,
int caret,
int selectionLength,
boolean hasFocus,
Highlighter... highlighters) {
StringBuilder sb = new StringBuilder();
sb.append("<pre>");
ColorModel colorModel = new ColorModel(text.length() + 1);
for (Highlighter highlighter : highlighters) {
highlighter.highlight(text, caret, selectionLength, hasFocus, colorModel);
}
if (hasFocus) {
if (selectionLength != 0) {
colorModel.addStyle(caret, caret + selectionLength, "sel");
} else {
colorModel.addStyle(caret, "caret");
}
}
for (int i = 0; i <= text.length(); ) {
int next = colorModel.getNextDifferent(i);
CharSequence style = colorModel.getStyle(i);
if (style != null) {
sb.append("<span class='").append(style).append("'>");
}
if (next == text.length() + 1) {
sb.append(text, i, text.length());
sb.append(" ");
} else {
sb.append(text, i, next);
}
if (style != null) {
sb.append("</span>");
}
i = next;
}
sb.append("</pre>");
return sb;
}
/**
* Makes the Mandelbrot image.
*
* @param width the width
* @parah height the height
* @return the image
*/
public BufferedImage makeMandelbrot(int width, int height) {
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
WritableRaster raster = image.getRaster();
ColorModel model = image.getColorModel();
Color fractalColor = Color.red;
int argb = fractalColor.getRGB();
Object colorData = model.getDataElements(argb, null);
for (int i = 0; i < width; i++)
for (int j = 0; j < height; j++) {
double a = XMIN + i * (XMAX - XMIN) / width;
double b = YMIN + j * (YMAX - YMIN) / height;
if (!escapesToInfinity(a, b)) raster.setDataElements(i, j, colorData);
}
return image;
}
public static boolean compressPic(String srcFilePath, String descFilePath) {
File file = null;
BufferedImage src = null;
FileOutputStream out = null;
ImageWriter imgWrier;
ImageWriteParam imgWriteParams;
// 指定写图片的方式为 jpg
imgWrier = ImageIO.getImageWritersByFormatName("jpg").next();
imgWriteParams = new javax.imageio.plugins.jpeg.JPEGImageWriteParam(null);
// 要使用压缩，必须指定压缩方式为MODE_EXPLICIT
imgWriteParams.setCompressionMode(imgWriteParams.MODE_EXPLICIT);
// 这里指定压缩的程度，参数qality是取值0~1范围内，
imgWriteParams.setCompressionQuality((float) 0.1);
imgWriteParams.setProgressiveMode(imgWriteParams.MODE_DISABLED);
ColorModel colorModel = ColorModel.getRGBdefault();
// 指定压缩时使用的色彩模式
imgWriteParams.setDestinationType(
new javax.imageio.ImageTypeSpecifier(
colorModel, colorModel.createCompatibleSampleModel(16, 16)));
try {
if (StringUtils.isBlank(srcFilePath)) {
return false;
} else {
file = new File(srcFilePath);
src = ImageIO.read(file);
out = new FileOutputStream(descFilePath);
imgWrier.reset();
// 必须先指定 out值，才能调用write方法, ImageOutputStream可以通过任何 OutputStream构造
imgWrier.setOutput(ImageIO.createImageOutputStream(out));
// 调用write方法，就可以向输入流写图片
imgWrier.write(null, new IIOImage(src, null, null), imgWriteParams);
out.flush();
out.close();
}
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
// This method returns true if the specified image has transparent pixels
// Source: http://www.exampledepot.com/egs/java.awt.image/HasAlpha.html
public static boolean hasAlpha(Image image) {
// If buffered image, the color model is readily available
if (image instanceof BufferedImage) {
BufferedImage bimage = (BufferedImage) image;
return bimage.getColorModel().hasAlpha();
}
// Use a pixel grabber to retrieve the image's color model;
// grabbing a single pixel is usually sufficient
PixelGrabber pg = new PixelGrabber(image, 0, 0, 1, 1, false);
try {
pg.grabPixels();
} catch (InterruptedException e) {
}
// Get the image's color model
ColorModel cm = pg.getColorModel();
return cm.hasAlpha();
}
public BufferedImage filter(BufferedImage src, BufferedImage dst) {
int w = src.getWidth();
int h = src.getHeight();
if (dst == null) {
ColorModel dstCM = src.getColorModel();
dst =
new BufferedImage(
dstCM,
dstCM.createCompatibleWritableRaster(width, height),
dstCM.isAlphaPremultiplied(),
null);
}
Graphics2D g = dst.createGraphics();
g.drawRenderedImage(src, AffineTransform.getTranslateInstance(-x, -y));
g.dispose();
return dst;
}
public class Test extends Applet {
private ColorModel defaultRGB = ColorModel.getRGBdefault();
private Image image;
private int imw, imh, pixels[];
public void init() {
MediaTracker mt = new MediaTracker(this);
URL url = getClass().getResource("tiger.gif");
try {
image = createImage((ImageProducer) url.getContent());
mt.addImage(image, 0);
mt.waitForID(0);
} catch (Exception e) {
e.printStackTrace();
}
imw = image.getWidth(this);
imh = image.getWidth(this);
pixels = new int[imw * imh];
try {
PixelGrabber pg = new PixelGrabber(image, 0, 0, imw, imh, pixels, 0, imw);
pg.grabPixels();
} catch (InterruptedException e) {
e.printStackTrace();
}
addMouseMotionListener(
new MouseMotionAdapter() {
public void mouseMoved(MouseEvent e) {
int mx = e.getX(), my = e.getY();
if (mx > 0 && mx < imw && my > 0 && my < imh) {
int pixel = ((int[]) pixels)[my * imw + mx];
int red = defaultRGB.getRed(pixel),
green = defaultRGB.getGreen(pixel),
blue = defaultRGB.getBlue(pixel),
alpha = defaultRGB.getAlpha(pixel);
showStatus("red=" + red + " green=" + green + " blue=" + blue + " alpha=" + alpha);
}
}
});
}
public void paint(Graphics g) {
Insets insets = getInsets();
g.drawImage(image, insets.left, insets.top, this);
}
}
// ///////////////////////////////////////////////////////////////
// 双线性内插值算法
// 参数：img：要缩放的Image对象
// dstW:目标图像宽
// dstH:目标图像高
// comp：组件参数，比如Applet
//
// 公式：f(i+u,j+v) = (1-u)(1-v)f(i,j) + (1-u)vf(i,j+1) + u(1-v)f(i+1,j) +
// uvf(i+1,j+1)
//
// ///////////////////////////////////////////////////////////////
public static Image doubleLinearScale(Image img, int dstW, int dstH) {
OperateImage OI = new OperateImage();
Image imgTemp;
int[] scaled, src;
int srcW, srcH;
int R, G, B;
double widthFactor, heightFactor, tempX, tempY;
// double srcX_float = 0.0, srcY_float = 0.0;// 坐标的小数部分
// int srcX_int = 0, srcY_int = 0;// 坐标的整数部分
src = OI.takeImg(img, img.getWidth(null), img.getHeight(null));
ColorModel cm = ColorModel.getRGBdefault();
for (int j = 0; j < src.length; j++) {
R = cm.getRed(src[j]);
G = cm.getGreen(src[j]);
B = cm.getBlue(src[j]);
if (R >= 200 && G >= 200 && B >= 200) src[j] = 0xffffffff;
else src[j] = 0xff000000;
}
scaled = new int[dstW * dstH]; // 存放缩放后的图片
srcW = img.getWidth(null);
srcH = img.getHeight(null);
widthFactor = srcW / (dstW + 0.0);
// System.out.println("widthFactor:"+widthFactor);
heightFactor = srcH / (dstH + 0.0);
// System.out.println("heightFactor:"+heightFactor);
for (int a = 0; a < dstH; a++)
for (int b = 0; b < dstW; b++) {
tempX = b * widthFactor;
tempY = a * heightFactor;
scaled[a * dstW + b] = getDestPixle(src, srcW, srcH, tempX, tempY);
}
// System.out.println("双线性内插值算法完成！");
imgTemp = OI.madeImg(scaled, dstW, dstH);
ImageFilter filter = new BWFilter();
return Toolkit.getDefaultToolkit()
.createImage(new FilteredImageSource(imgTemp.getSource(), filter));
// return imgTemp;
}
/**
* PS see http://astronomy.swin.edu.au/~pbourke/geomformats/postscript/ Java
* http://show.docjava.com:8086/book/cgij/doc/ip/graphics/SimpleImageFrame.java.html
*/
public boolean drawImage(
Image img, int x, int y, int width, int height, Color bgcolor, ImageObserver observer) {
try {
// get data from image
int[] pixels = new int[width * height];
PixelGrabber grabber = new PixelGrabber(img, 0, 0, width, height, pixels, 0, width);
grabber.grabPixels();
ColorModel model = ColorModel.getRGBdefault();
// print data to ps
m_printstream.println("gsave");
m_printstream.println(
xTransform(xScale(x)) + " " + (yTransform(yScale(y)) - yScale(height)) + " translate");
m_printstream.println(xScale(width) + " " + yScale(height) + " scale");
m_printstream.println(
width + " " + height + " " + "8" + " [" + width + " 0 0 " + (-height) + " 0 " + height
+ "]");
m_printstream.println("{<");
int index;
for (int i = 0; i < height; i++) {
for (int j = 0; j < width; j++) {
index = i * width + j;
m_printstream.print(toHex(model.getRed(pixels[index])));
m_printstream.print(toHex(model.getGreen(pixels[index])));
m_printstream.print(toHex(model.getBlue(pixels[index])));
}
m_printstream.println();
}
m_printstream.println(">}");
m_printstream.println("false 3 colorimage");
m_printstream.println("grestore");
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* Filters the information provided in the <code>imageComplete</code> method of the <code>
* ImageConsumer</code> interface.
*
* <p>Note: This method is intended to be called by the <code>ImageProducer</code> of the <code>
* Image</code> whose pixels are being filtered. Developers using this class to retrieve pixels
* from an image should avoid calling this method directly since that operation could result in
* problems with retrieving the requested pixels.
*
* @param status the status of image loading
* @throws ImagingOpException if there was a problem calling the filter method of the <code>
* BufferedImageOp</code> associated with this instance.
* @see ImageConsumer#imageComplete
*/
public void imageComplete(int status) {
WritableRaster wr;
switch (status) {
case IMAGEERROR:
case IMAGEABORTED:
// reinitialize the params
model = null;
width = -1;
height = -1;
intPixels = null;
bytePixels = null;
break;
case SINGLEFRAMEDONE:
case STATICIMAGEDONE:
if (width <= 0 || height <= 0) break;
if (model instanceof DirectColorModel) {
if (intPixels == null) break;
wr = createDCMraster();
} else if (model instanceof IndexColorModel) {
int[] bandOffsets = {0};
if (bytePixels == null) break;
DataBufferByte db = new DataBufferByte(bytePixels, width * height);
wr = Raster.createInterleavedRaster(db, width, height, width, 1, bandOffsets, null);
} else {
convertToRGB();
if (intPixels == null) break;
wr = createDCMraster();
}
BufferedImage bi = new BufferedImage(model, wr, model.isAlphaPremultiplied(), null);
bi = bufferedImageOp.filter(bi, null);
WritableRaster r = bi.getRaster();
ColorModel cm = bi.getColorModel();
int w = r.getWidth();
int h = r.getHeight();
consumer.setDimensions(w, h);
consumer.setColorModel(cm);
if (cm instanceof DirectColorModel) {
DataBufferInt db = (DataBufferInt) r.getDataBuffer();
consumer.setPixels(0, 0, w, h, cm, db.getData(), 0, w);
} else if (cm instanceof IndexColorModel) {
DataBufferByte db = (DataBufferByte) r.getDataBuffer();
consumer.setPixels(0, 0, w, h, cm, db.getData(), 0, w);
} else {
throw new InternalError("Unknown color model " + cm);
}
break;
}
consumer.imageComplete(status);
}
/**
* {@collect.stats} Creates a zeroed destination image with the correct size and number of bands.
*
* @param src Source image for the filter operation.
* @param destCM ColorModel of the destination. If null, the ColorModel of the source will be
* used.
* @return the zeroed-destination image.
*/
public BufferedImage createCompatibleDestImage(BufferedImage src, ColorModel destCM) {
BufferedImage image;
if (destCM == null) {
ColorModel cm = src.getColorModel();
image =
new BufferedImage(
cm,
src.getRaster().createCompatibleWritableRaster(),
cm.isAlphaPremultiplied(),
null);
} else {
int w = src.getWidth();
int h = src.getHeight();
image =
new BufferedImage(
destCM,
destCM.createCompatibleWritableRaster(w, h),
destCM.isAlphaPremultiplied(),
null);
}
return image;
}
public BufferedImage createCompatibleDestImage(BufferedImage src, ColorModel destCM) {
Rectangle2D newBounds = getBounds2D(src);
// Destination image should include (0,0) + positive part
// of the area bounded by newBounds (in source coordinate system).
double dstWidth = newBounds.getX() + newBounds.getWidth();
double dstHeight = newBounds.getY() + newBounds.getHeight();
if (dstWidth <= 0 || dstHeight <= 0) {
// awt.251=Transformed width ({0}) and height ({1}) should be
// greater than 0
throw new RasterFormatException(
Messages.getString("awt.251", dstWidth, dstHeight)); // $NON-NLS-1$
}
if (destCM != null) {
return new BufferedImage(
destCM,
destCM.createCompatibleWritableRaster((int) dstWidth, (int) dstHeight),
destCM.isAlphaPremultiplied(),
null);
}
ColorModel cm = src.getColorModel();
// Interpolation other than NN doesn't make any sense for index color
if (iType != TYPE_NEAREST_NEIGHBOR && cm instanceof IndexColorModel) {
return new BufferedImage((int) dstWidth, (int) dstHeight, BufferedImage.TYPE_INT_ARGB);
}
// OK, we can get source color model
return new BufferedImage(
cm,
src.getRaster().createCompatibleWritableRaster((int) dstWidth, (int) dstHeight),
cm.isAlphaPremultiplied(),
null);
}
public static void main(String args[]) {
try {
ICC_Profile inProfile =
ICC_Profile.getInstance("/System/Library/ColorSync/Profiles/AdobeRGB1998.icc");
ICC_Profile outProfile =
ICC_Profile.getInstance("/Library/ColorSync/Profiles/CIE 1931 D50 Gamma 1.icm");
Profile cmsOutProfile = new Profile(outProfile);
Profile cmsInProfile = new Profile(inProfile);
BufferedImage inputImage = ImageIO.read(new File("/Stuff/Reference/small-q60-adobergb.TIF"));
ShortInterleavedRaster inputRaster = (ShortInterleavedRaster) inputImage.getTile(0, 0);
ColorSpace outCS = new ICC_ColorSpace(outProfile);
ColorModel outCM =
new ComponentColorModel(outCS, false, false, Transparency.OPAQUE, DataBuffer.TYPE_USHORT);
ShortInterleavedRaster outputRaster =
(ShortInterleavedRaster)
outCM.createCompatibleWritableRaster(inputImage.getWidth(), inputImage.getHeight());
BufferedImage outputImage = new BufferedImage(outCM, outputRaster, false, null);
Transform cmsTransform =
new Transform(
cmsInProfile, TYPE_RGB_16, cmsOutProfile, TYPE_RGB_16, INTENT_PERCEPTUAL, 0);
cmsTransform.doTransform(inputRaster, outputRaster);
ImageIO.write(outputImage, "TIF", new File("/Stuff/small-q60-CIED65.TIF"));
cmsTransform.dispose();
cmsOutProfile.dispose();
cmsInProfile.dispose();
// System.out.println("Profile: " + hProfile + ", " + );
} catch (IOException e) {
e.printStackTrace();
}
}
private final WritableRaster createDCMraster() {
WritableRaster wr;
DirectColorModel dcm = (DirectColorModel) model;
boolean hasAlpha = model.hasAlpha();
int[] bandMasks = new int[3 + (hasAlpha ? 1 : 0)];
bandMasks[0] = dcm.getRedMask();
bandMasks[1] = dcm.getGreenMask();
bandMasks[2] = dcm.getBlueMask();
if (hasAlpha) {
bandMasks[3] = dcm.getAlphaMask();
}
DataBufferInt db = new DataBufferInt(intPixels, width * height);
wr = Raster.createPackedRaster(db, width, height, width, bandMasks, null);
return wr;
}
private void convertToRGB() {
int size = width * height;
int newpixels[] = new int[size];
if (bytePixels != null) {
for (int i = 0; i < size; i++) {
newpixels[i] = this.model.getRGB(bytePixels[i] & 0xff);
}
} else if (intPixels != null) {
for (int i = 0; i < size; i++) {
newpixels[i] = this.model.getRGB(intPixels[i]);
}
}
bytePixels = null;
intPixels = newpixels;
this.model = ColorModel.getRGBdefault();
}
static {
ColorModel.loadLibraries();
initIDs();
}
public void write(BufferedImage image, AVList params) throws IOException {
if (image == null) {
String msg = Logging.getMessage("nullValue.ImageSource");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
if (0 == image.getWidth() || 0 == image.getHeight()) {
String msg =
Logging.getMessage("generic.InvalidImageSize", image.getWidth(), image.getHeight());
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
if (null == params || 0 == params.getValues().size()) {
String reason = Logging.getMessage("nullValue.AVListIsNull");
Logging.logger().finest(Logging.getMessage("GeotiffWriter.GeoKeysMissing", reason));
params = new AVListImpl();
} else {
this.validateParameters(params, image.getWidth(), image.getHeight());
}
// how we proceed in part depends upon the image type...
int type = image.getType();
// handle CUSTOM type which comes from our GeoTiffreader (for now)
if (BufferedImage.TYPE_CUSTOM == type) {
int numColorComponents = 0, numComponents = 0, pixelSize = 0, dataType = 0, csType = 0;
boolean hasAlpha = false;
if (null != image.getColorModel()) {
ColorModel cm = image.getColorModel();
numColorComponents = cm.getNumColorComponents();
numComponents = cm.getNumComponents();
pixelSize = cm.getPixelSize();
hasAlpha = cm.hasAlpha();
ColorSpace cs = cm.getColorSpace();
if (null != cs) csType = cs.getType();
}
if (null != image.getSampleModel()) {
SampleModel sm = image.getSampleModel();
dataType = sm.getDataType();
}
if (dataType == DataBuffer.TYPE_FLOAT && pixelSize == Float.SIZE && numComponents == 1) {
type = BufferedImage_TYPE_ELEVATION_FLOAT32;
} else if (dataType == DataBuffer.TYPE_SHORT
&& pixelSize == Short.SIZE
&& numComponents == 1) {
type = BufferedImage_TYPE_ELEVATION_SHORT16;
} else if (ColorSpace.CS_GRAY == csType && pixelSize == Byte.SIZE) {
type = BufferedImage.TYPE_BYTE_GRAY;
} else if (dataType == DataBuffer.TYPE_USHORT
&& ColorSpace.CS_GRAY == csType
&& pixelSize == Short.SIZE) {
type = BufferedImage.TYPE_USHORT_GRAY;
} else if (ColorSpace.TYPE_RGB == csType
&& pixelSize == 3 * Byte.SIZE
&& numColorComponents == 3) {
type = BufferedImage.TYPE_3BYTE_BGR;
} else if (ColorSpace.TYPE_RGB == csType
&& hasAlpha
&& pixelSize == 4 * Byte.SIZE
&& numComponents == 4) {
type = BufferedImage.TYPE_4BYTE_ABGR;
}
}
switch (type) {
case BufferedImage.TYPE_3BYTE_BGR:
case BufferedImage.TYPE_4BYTE_ABGR:
case BufferedImage.TYPE_4BYTE_ABGR_PRE:
case BufferedImage.TYPE_INT_RGB:
case BufferedImage.TYPE_INT_BGR:
case BufferedImage.TYPE_INT_ARGB:
case BufferedImage.TYPE_INT_ARGB_PRE:
{
this.writeColorImage(image, params);
}
break;
case BufferedImage.TYPE_USHORT_GRAY:
case BufferedImage.TYPE_BYTE_GRAY:
{
this.writeGrayscaleImage(image, params);
}
break;
case BufferedImage_TYPE_ELEVATION_SHORT16:
case BufferedImage_TYPE_ELEVATION_FLOAT32:
{
String msg = Logging.getMessage("GeotiffWriter.FeatureNotImplementedd", type);
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
// break;
case BufferedImage.TYPE_CUSTOM:
default:
{
ColorModel cm = image.getColorModel();
SampleModel sm = image.getSampleModel();
StringBuffer sb =
new StringBuffer(Logging.getMessage("GeotiffWriter.UnsupportedType", type));
sb.append("\n");
sb.append("NumBands=").append(sm.getNumBands()).append("\n");
sb.append("NumDataElements=").append(sm.getNumDataElements()).append("\n");
sb.append("NumColorComponents=").append(cm.getNumColorComponents()).append("\n");
sb.append("NumComponents=").append(cm.getNumComponents()).append("\n");
sb.append("PixelSize=").append(cm.getPixelSize()).append("\n");
sb.append("hasAlpha=").append(cm.hasAlpha());
String msg = sb.toString();
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
}
}
public void actionPerformed(ActionEvent evt) {
Graphics g = getGraphics();
if (evt.getSource() == openItem) {
JFileChooser chooser = new JFileChooser();
common.chooseFile(chooser, "./images", 0); // 设置默认目录,过滤文件
int r = chooser.showOpenDialog(null);
if (r == JFileChooser.APPROVE_OPTION) {
String name = chooser.getSelectedFile().getAbsolutePath();
// 装载图像
iImage = common.openImage(name, new MediaTracker(this));
// 取载入图像的宽和高
iw = iImage.getWidth(null);
ih = iImage.getHeight(null);
bImage = new BufferedImage(iw, ih, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = bImage.createGraphics();
g2.drawImage(iImage, 0, 0, null);
loadflag = true;
repaint();
}
} else if (evt.getSource() == rotateItem) // 内置旋转
{
setTitle("第4章 图像几何变换 内置旋转 作者 孙燮华");
common.draw(g, iImage, bImage, common.getParam("旋转角(度):", "30"), 0, 0);
} else if (evt.getSource() == scaleItem) // 内置缩放
{
setTitle("第4章 图像几何变换 内置缩放 作者 孙燮华");
// 参数选择面板
Parameters pp = new Parameters("参数", "x方向:", "y方向:", "1.5", "1.5");
setPanel(pp, "内置缩放");
float x = pp.getPadx();
float y = pp.getPady();
common.draw(g, iImage, bImage, x, y, 1);
} else if (evt.getSource() == shearItem) // 内置错切
{
setTitle("第4章 图像几何变换 内置错切 作者 孙燮华");
Parameters pp = new Parameters("参数", "x方向:", "y方向:", "0.5", "0.5");
setPanel(pp, "内置错切");
float x = pp.getPadx();
float y = pp.getPady();
common.draw(g, iImage, bImage, x, y, 2);
} else if (evt.getSource() == transItem) // 内置平移
{
setTitle("第4章 图像几何变换 内置平移 作者 孙燮华");
Parameters pp = new Parameters("参数", "x方向:", "y方向:", "100", "50");
setPanel(pp, "内置平移");
float x = pp.getPadx();
float y = pp.getPady();
common.draw(g, iImage, bImage, x, y, 3);
} else if (evt.getSource() == rotItem) // 旋转算法
{
setTitle("第4章 图像几何变换 旋转算法 作者 孙燮华");
pix = common.grabber(iImage, iw, ih);
// 旋转,输出图像宽高
int owh = (int) (Math.sqrt(iw * iw + ih * ih + 0.5));
opix = geom.imRotate(pix, common.getParam("旋转角(度):", "30"), iw, ih, owh);
// 将数组中的象素产生一个图像
MemoryImageSource memoryImage =
new MemoryImageSource(owh, owh, ColorModel.getRGBdefault(), opix, 0, owh);
oImage = createImage(memoryImage);
common.draw(g, iImage, oImage, iw, ih, owh, 4);
} else if (evt.getSource() == mirItem) // 镜象算法(type:5)
{
setTitle("第4章 图像几何变换 镜象算法 作者 孙燮华");
Parameters pp = new Parameters("选择镜象类型", "水平", "垂直");
setPanel(pp, "镜象算法");
pix = common.grabber(iImage, iw, ih);
opix = geom.imMirror(pix, iw, ih, pp.getRadioState());
ImageProducer ip = new MemoryImageSource(iw, ih, opix, 0, iw);
oImage = createImage(ip);
common.draw(g, iImage, oImage, iw, ih, 0, 5);
} else if (evt.getSource() == shrItem) // 错切算法(type:6)
{
setTitle("第4章 图像几何变换 错切算法 作者 孙燮华");
Parameters pp = new Parameters("参数", "x方向:", "y方向:", "0.5", "0.5");
setPanel(pp, "错切算法");
pix = common.grabber(iImage, iw, ih);
float shx = pp.getPadx();
float shy = pp.getPady();
// 计算包围盒的宽和高
int ow = (int) (iw + (ih - 1) * shx);
int oh = (int) ((iw - 1) * shy + ih);
if (shx > 0 && shy > 0) {
opix = geom.imShear(pix, shx, shy, iw, ih, ow, oh);
ImageProducer ip = new MemoryImageSource(ow, oh, opix, 0, ow);
oImage = createImage(ip);
common.draw(g, iImage, oImage, iw, ih, 0, 6);
} else JOptionPane.showMessageDialog(null, "参数必须为正数!");
} else if (evt.getSource() == trnItem) {
setTitle("第4章 图像几何变换 平移算法 作者 孙燮华");
Parameters pp = new Parameters("参数", "x方向:", "y方向:", "100", "50");
setPanel(pp, "平移算法");
pix = common.grabber(iImage, iw, ih);
int tx = (int) pp.getPadx();
int ty = (int) pp.getPady();
if (tx > 0 && ty > 0) {
int ow = iw + tx;
int oh = ih + ty;
opix = geom.imTrans(pix, tx, ty, iw, ih, ow, oh);
ImageProducer ip = new MemoryImageSource(ow, oh, opix, 0, ow);
oImage = createImage(ip);
common.draw(g, iImage, oImage, iw, ih, 0, 7);
} else JOptionPane.showMessageDialog(null, "参数必须为正数!");
} else if (evt.getSource() == nearItem) {
setTitle("第4章 图像几何变换 最邻近插值算法 作者 孙燮华");
pix = common.grabber(iImage, iw, ih);
float p =
(Float.valueOf(JOptionPane.showInputDialog(null, "输入缩放参数(0.1-3.0)", "1.50")))
.floatValue();
int ow = (int) (p * iw); // 计算目标图宽高
int oh = (int) (p * ih);
opix = geom.nearNeighbor(pix, iw, ih, ow, oh, p);
ImageProducer ip = new MemoryImageSource(ow, oh, opix, 0, ow);
oImage = createImage(ip);
common.draw(g, oImage, "最邻近插值", p);
} else if (evt.getSource() == linrItem) {
setTitle("第4章 图像几何变换 双线性插值算法 作者 孙燮华");
pix = common.grabber(iImage, iw, ih);
float p =
(Float.valueOf(JOptionPane.showInputDialog(null, "输入缩放参数(0.1-3.0)", "1.50")))
.floatValue();
int ow = (int) (p * iw); // 计算目标图宽高
int oh = (int) (p * ih);
opix = geom.bilinear(pix, iw, ih, ow, oh, p);
ImageProducer ip = new MemoryImageSource(ow, oh, opix, 0, ow);
oImage = createImage(ip);
common.draw(g, oImage, "双线性插值", p);
} else if (evt.getSource() == cubicItem) {
setTitle("第4章 图像几何变换 三次卷积插值算法 作者 孙燮华");
pix = common.grabber(iImage, iw, ih);
float p =
(Float.valueOf(JOptionPane.showInputDialog(null, "输入缩放参数(1.1-3.0)", "1.50")))
.floatValue();
if (p < 1) {
JOptionPane.showMessageDialog(null, "参数p必须大于1!");
return;
}
int ow = (int) (p * iw); // 计算目标图宽高
int oh = (int) (p * ih);
opix = geom.scale(pix, iw, ih, ow, oh, p, p);
ImageProducer ip = new MemoryImageSource(ow, oh, opix, 0, ow);
oImage = createImage(ip);
common.draw(g, oImage, "三次卷积插值", p);
} else if (evt.getSource() == okButton) dialog.dispose();
else if (evt.getSource() == exitItem) System.exit(0);
}
public static void main(String args[]) {
ColorModel cm =
new ColorModel(32) {
public int getAlpha(int pixel) {
return 255;
}
public int getBlue(int pixel) {
return 255;
}
public int getGreen(int pixel) {
return 255;
}
public int getRed(int pixel) {
return 255;
}
};
cm.hasAlpha();
cm.isAlphaPremultiplied();
cm.getTransferType();
cm.getPixelSize();
cm.getComponentSize();
cm.getComponentSize();
cm.getTransparency();
cm.getNumComponents();
cm.getNumColorComponents();
cm.getRed(20);
cm.getGreen(20);
cm.getBlue(20);
cm.getAlpha(20);
cm.getRGB(20);
cm.isAlphaPremultiplied();
cm.isAlphaPremultiplied();
cm = ColorModel.getRGBdefault();
}
private void readHeader() throws IOException {
if (gotHeader) {
iis.seek(128);
return;
}
metadata = new PCXMetadata();
manufacturer = iis.readByte(); // manufacturer
if (manufacturer != MANUFACTURER) throw new IllegalStateException("image is not a PCX file");
metadata.version = iis.readByte(); // version
encoding = iis.readByte(); // encoding
if (encoding != ENCODING)
throw new IllegalStateException("image is not a PCX file, invalid encoding " + encoding);
metadata.bitsPerPixel = iis.readByte();
metadata.xmin = iis.readShort();
metadata.ymin = iis.readShort();
xmax = iis.readShort();
ymax = iis.readShort();
metadata.hdpi = iis.readShort();
metadata.vdpi = iis.readShort();
iis.readFully(smallPalette);
iis.readByte(); // reserved
colorPlanes = iis.readByte();
bytesPerLine = iis.readShort();
paletteType = iis.readShort();
metadata.hsize = iis.readShort();
metadata.vsize = iis.readShort();
iis.skipBytes(54); // skip filler
width = xmax - metadata.xmin + 1;
height = ymax - metadata.ymin + 1;
if (colorPlanes == 1) {
if (paletteType == PALETTE_GRAYSCALE) {
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
int[] nBits = {8};
colorModel =
new ComponentColorModel(
cs, nBits, false, false, Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
sampleModel =
new ComponentSampleModel(DataBuffer.TYPE_BYTE, width, height, 1, width, new int[] {0});
} else {
if (metadata.bitsPerPixel == 8) {
// read palette from end of file, then reset back to image data
iis.mark();
if (iis.length() == -1) {
// read until eof, and work backwards
while (iis.read() != -1) ;
iis.seek(iis.getStreamPosition() - 256 * 3 - 1);
} else {
iis.seek(iis.length() - 256 * 3 - 1);
}
int palletteMagic = iis.read();
if (palletteMagic != 12)
processWarningOccurred(
"Expected palette magic number 12; instead read "
+ palletteMagic
+ " from this image.");
iis.readFully(largePalette);
iis.reset();
colorModel = new IndexColorModel(metadata.bitsPerPixel, 256, largePalette, 0, false);
sampleModel = colorModel.createCompatibleSampleModel(width, height);
} else {
int msize = metadata.bitsPerPixel == 1 ? 2 : 16;
colorModel = new IndexColorModel(metadata.bitsPerPixel, msize, smallPalette, 0, false);
sampleModel = colorModel.createCompatibleSampleModel(width, height);
}
}
} else {
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
int[] nBits = {8, 8, 8};
colorModel =
new ComponentColorModel(
cs, nBits, false, false, Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
sampleModel =
new ComponentSampleModel(
DataBuffer.TYPE_BYTE,
width,
height,
1,
width * colorPlanes,
new int[] {0, width, width * 2});
}
originalSampleModel = sampleModel;
originalColorModel = colorModel;
gotHeader = true;
}
@Override
public Color compute(double x, double y) {
return model.compute(
x * Math.cos(angle) - y * Math.sin(angle), x * Math.sin(angle) + y * Math.cos(angle));
}
public BufferedImage filter(BufferedImage src, BufferedImage dst) {
int width = src.getWidth();
int height = src.getHeight();
int type = src.getType();
WritableRaster srcRaster = src.getRaster();
originalSpace = new Rectangle(0, 0, width, height);
transformedSpace = new Rectangle(0, 0, width, height);
transformSpace(transformedSpace);
if (dst == null) {
ColorModel dstCM = src.getColorModel();
dst =
new BufferedImage(
dstCM,
dstCM.createCompatibleWritableRaster(transformedSpace.width, transformedSpace.height),
dstCM.isAlphaPremultiplied(),
null);
}
WritableRaster dstRaster = dst.getRaster();
int[] inPixels = getRGB(src, 0, 0, width, height, null);
if (interpolation == NEAREST_NEIGHBOUR)
return filterPixelsNN(dst, width, height, inPixels, transformedSpace);
int srcWidth = width;
int srcHeight = height;
int srcWidth1 = width - 1;
int srcHeight1 = height - 1;
int outWidth = transformedSpace.width;
int outHeight = transformedSpace.height;
int outX, outY;
int index = 0;
int[] outPixels = new int[outWidth];
outX = transformedSpace.x;
outY = transformedSpace.y;
float[] out = new float[2];
for (int y = 0; y < outHeight; y++) {
for (int x = 0; x < outWidth; x++) {
transformInverse(outX + x, outY + y, out);
int srcX = (int) Math.floor(out[0]);
int srcY = (int) Math.floor(out[1]);
float xWeight = out[0] - srcX;
float yWeight = out[1] - srcY;
int nw, ne, sw, se;
if (srcX >= 0 && srcX < srcWidth1 && srcY >= 0 && srcY < srcHeight1) {
// Easy case, all corners are in the image
int i = srcWidth * srcY + srcX;
nw = inPixels[i];
ne = inPixels[i + 1];
sw = inPixels[i + srcWidth];
se = inPixels[i + srcWidth + 1];
} else {
// Some of the corners are off the image
nw = getPixel(inPixels, srcX, srcY, srcWidth, srcHeight);
ne = getPixel(inPixels, srcX + 1, srcY, srcWidth, srcHeight);
sw = getPixel(inPixels, srcX, srcY + 1, srcWidth, srcHeight);
se = getPixel(inPixels, srcX + 1, srcY + 1, srcWidth, srcHeight);
}
outPixels[x] = ImageMath.bilinearInterpolate(xWeight, yWeight, nw, ne, sw, se);
}
setRGB(dst, 0, y, transformedSpace.width, 1, outPixels);
}
return dst;
}
public BufferedImage decompress(final QuickTime.ImageDesc pDescription, final InputStream pStream)
throws IOException {
byte[] data = new byte[pDescription.dataSize];
DataInputStream stream = new DataInputStream(pStream);
try {
stream.readFully(data, 0, pDescription.dataSize);
} finally {
stream.close();
}
DataBuffer buffer = new DataBufferByte(data, data.length);
WritableRaster raster;
// TODO: Depth parameter can be 1-32 (color) or 33-40 (gray scale)
switch (pDescription.depth) {
case 40: // 8 bit gray (untested)
raster =
Raster.createInterleavedRaster(
buffer,
pDescription.width,
pDescription.height,
pDescription.width,
1,
new int[] {0},
null);
break;
case 24: // 24 bit RGB
raster =
Raster.createInterleavedRaster(
buffer,
pDescription.width,
pDescription.height,
pDescription.width * 3,
3,
new int[] {0, 1, 2},
null);
break;
case 32: // 32 bit ARGB
// WORKAROUND: There is a bug in the way Java 2D interprets the band offsets in
// Raster.createInterleavedRaster (see below) before Java 6. So, instead of
// passing a correct offset array below, we swap channel 1 & 3 to make it ABGR...
for (int y = 0; y < pDescription.height; y++) {
for (int x = 0; x < pDescription.width; x++) {
int offset = 4 * y * pDescription.width + x * 4;
byte temp = data[offset + 1];
data[offset + 1] = data[offset + 3];
data[offset + 3] = temp;
}
}
raster =
Raster.createInterleavedRaster(
buffer,
pDescription.width,
pDescription.height,
pDescription.width * 4,
4,
new int[] {3, 2, 1, 0}, // B & R mixed up. {1, 2, 3, 0} is correct
null);
break;
default:
throw new IIOException("Unsupported RAW depth: " + pDescription.depth);
}
ColorModel cm =
new ComponentColorModel(
pDescription.depth <= 32
? ColorSpace.getInstance(ColorSpace.CS_sRGB)
: ColorSpace.getInstance(ColorSpace.CS_GRAY),
pDescription.depth == 32,
false,
pDescription.depth == 32 ? Transparency.TRANSLUCENT : Transparency.OPAQUE,
DataBuffer.TYPE_BYTE);
return new BufferedImage(cm, raster, cm.isAlphaPremultiplied(), null);
}
/* this is changed
public void run() {
*/
public void produceImage() throws IOException, ImageFormatException {
/* this is not needed
ImageConsumer t = target;
if(t!=null) try {
*/
try {
for (int i = 0; i < signature.length; i++)
if ((signature[i] & 0xFF) != underlyingInputStream.read())
throw new PNGException("Chunk signature mismatch");
InputStream is =
new BufferedInputStream(new InflaterInputStream(inputStream, new Inflater()));
getData();
byte[] bPixels = null;
int[] wPixels = null;
int pixSize = width;
int rowStride;
int logDepth = 0;
switch (bitDepth) {
case 1:
logDepth = 0;
break;
case 2:
logDepth = 1;
break;
case 4:
logDepth = 2;
break;
case 8:
logDepth = 3;
break;
case 16:
logDepth = 4;
break;
default:
throw new PNGException("invalid depth");
}
if (interlaceMethod != 0) {
pixSize *= height;
rowStride = width;
} else rowStride = 0;
int combinedType = colorType | (bitDepth << 3);
int bitMask = (1 << (bitDepth >= 8 ? 8 : bitDepth)) - 1;
// Figure out the color model
switch (colorType) {
case COLOR | PALETTE:
case COLOR | PALETTE | ALPHA:
if (red_map == null) throw new PNGException("palette expected");
if (alpha_map == null)
cm = new IndexColorModel(bitDepth, red_map.length, red_map, green_map, blue_map);
else
cm =
new IndexColorModel(
bitDepth, red_map.length, red_map, green_map, blue_map, alpha_map);
bPixels = new byte[pixSize];
break;
case GRAY:
{
int llog = logDepth >= 4 ? 3 : logDepth;
if ((cm = greyModels[llog]) == null) {
int size = 1 << (1 << llog);
byte ramp[] = new byte[size];
for (int i = 0; i < size; i++) ramp[i] = (byte) (255 * i / (size - 1));
if (transparentPixel == -1) {
cm = new IndexColorModel(bitDepth, ramp.length, ramp, ramp, ramp);
} else {
cm =
new IndexColorModel(
bitDepth, ramp.length, ramp, ramp, ramp, (transparentPixel & 0xFF));
}
greyModels[llog] = cm;
}
}
bPixels = new byte[pixSize];
break;
case COLOR:
case COLOR | ALPHA:
case GRAY | ALPHA:
cm = ColorModel.getRGBdefault();
wPixels = new int[pixSize];
break;
default:
throw new PNGException("invalid color type");
}
/* this is going to be set in the pixel store
t.setColorModel(cm);
t.setHints(interlaceMethod !=0
? ImageConsumer.TOPDOWNLEFTRIGHT | ImageConsumer.COMPLETESCANLINES
: ImageConsumer.TOPDOWNLEFTRIGHT | ImageConsumer.COMPLETESCANLINES |
ImageConsumer.SINGLEPASS | ImageConsumer.SINGLEFRAME);
*/
// code added to make it work with ImageDecoder architecture
setDimensions(width, height);
setColorModel(cm);
int flags =
(interlaceMethod != 0
? ImageConsumer.TOPDOWNLEFTRIGHT | ImageConsumer.COMPLETESCANLINES
: ImageConsumer.TOPDOWNLEFTRIGHT
| ImageConsumer.COMPLETESCANLINES
| ImageConsumer.SINGLEPASS
| ImageConsumer.SINGLEFRAME);
setHints(flags);
headerComplete();
// end of adding
int samplesPerPixel =
((colorType & PALETTE) != 0
? 1
: ((colorType & COLOR) != 0 ? 3 : 1) + ((colorType & ALPHA) != 0 ? 1 : 0));
int bitsPerPixel = samplesPerPixel * bitDepth;
int bytesPerPixel = (bitsPerPixel + 7) >> 3;
int pass, passLimit;
if (interlaceMethod == 0) {
pass = -1;
passLimit = 0;
} else {
pass = 0;
passLimit = 7;
}
// These loops are far from being tuned. They're this way to make them easy to
// debug. Tuning comes later.
/* code changed. target not needed here
while(++pass<=passLimit && (t=target)!=null) {
*/
while (++pass <= passLimit) {
int row = startingRow[pass];
int rowInc = rowIncrement[pass];
int colInc = colIncrement[pass];
int bWidth = blockWidth[pass];
int bHeight = blockHeight[pass];
int sCol = startingCol[pass];
int rowPixelWidth = (width - sCol + (colInc - 1)) / colInc;
int rowByteWidth = ((rowPixelWidth * bitsPerPixel) + 7) >> 3;
if (rowByteWidth == 0) continue;
int pixelBufferInc = interlaceMethod == 0 ? rowInc * width : 0;
int rowOffset = rowStride * row;
boolean firstRow = true;
byte[] rowByteBuffer = new byte[rowByteWidth];
byte[] prevRowByteBuffer = new byte[rowByteWidth];
/* code changed. target not needed here
while (row < height && (t=target)!=null) {
*/
while (row < height) {
int rowFilter = is.read();
for (int rowFillPos = 0; rowFillPos < rowByteWidth; ) {
int n = is.read(rowByteBuffer, rowFillPos, rowByteWidth - rowFillPos);
if (n <= 0) throw new PNGException("missing data");
rowFillPos += n;
}
filterRow(
rowByteBuffer,
firstRow ? null : prevRowByteBuffer,
rowFilter,
rowByteWidth,
bytesPerPixel);
int col = sCol;
int spos = 0;
int pixel = 0;
while (col < width) {
if (wPixels != null) {
switch (combinedType) {
case COLOR | ALPHA | (8 << 3):
wPixels[col + rowOffset] =
((rowByteBuffer[spos] & 0xFF) << 16)
| ((rowByteBuffer[spos + 1] & 0xFF) << 8)
| ((rowByteBuffer[spos + 2] & 0xFF))
| ((rowByteBuffer[spos + 3] & 0xFF) << 24);
spos += 4;
break;
case COLOR | ALPHA | (16 << 3):
wPixels[col + rowOffset] =
((rowByteBuffer[spos] & 0xFF) << 16)
| ((rowByteBuffer[spos + 2] & 0xFF) << 8)
| ((rowByteBuffer[spos + 4] & 0xFF))
| ((rowByteBuffer[spos + 6] & 0xFF) << 24);
spos += 8;
break;
case COLOR | (8 << 3):
pixel =
((rowByteBuffer[spos] & 0xFF) << 16)
| ((rowByteBuffer[spos + 1] & 0xFF) << 8)
| ((rowByteBuffer[spos + 2] & 0xFF));
if (pixel != transparentPixel) {
pixel |= 0xff000000;
}
wPixels[col + rowOffset] = pixel;
spos += 3;
break;
case COLOR | (16 << 3):
pixel =
((rowByteBuffer[spos] & 0xFF) << 16)
| ((rowByteBuffer[spos + 2] & 0xFF) << 8)
| ((rowByteBuffer[spos + 4] & 0xFF));
boolean isTransparent = (transparentPixel_16 != null);
for (int i = 0; isTransparent && (i < 6); i++) {
isTransparent &=
(rowByteBuffer[spos + i] & 0xFF) == (transparentPixel_16[i] & 0xFF);
}
if (!isTransparent) {
pixel |= 0xff000000;
}
wPixels[col + rowOffset] = pixel;
spos += 6;
break;
case GRAY | ALPHA | (8 << 3):
{
int tx = rowByteBuffer[spos] & 0xFF;
wPixels[col + rowOffset] =
(tx << 16) | (tx << 8) | tx | ((rowByteBuffer[spos + 1] & 0xFF) << 24);
}
spos += 2;
break;
case GRAY | ALPHA | (16 << 3):
{
int tx = rowByteBuffer[spos] & 0xFF;
wPixels[col + rowOffset] =
(tx << 16) | (tx << 8) | tx | ((rowByteBuffer[spos + 2] & 0xFF) << 24);
}
spos += 4;
break;
default:
throw new PNGException("illegal type/depth");
}
} else
switch (bitDepth) {
case 1:
bPixels[col + rowOffset] =
(byte) ((rowByteBuffer[spos >> 3] >> (7 - (spos & 7))) & 1);
spos++;
break;
case 2:
bPixels[col + rowOffset] =
(byte) ((rowByteBuffer[spos >> 2] >> ((3 - (spos & 3)) * 2)) & 3);
spos++;
break;
case 4:
bPixels[col + rowOffset] =
(byte) ((rowByteBuffer[spos >> 1] >> ((1 - (spos & 1)) * 4)) & 15);
spos++;
break;
case 8:
bPixels[col + rowOffset] = rowByteBuffer[spos++];
break;
case 16:
bPixels[col + rowOffset] = rowByteBuffer[spos];
spos += 2;
break;
default:
throw new PNGException("illegal type/depth");
}
/*visit (row, col,
min (bHeight, height - row),
min (bWidth, width - col)); */
col += colInc;
}
if (interlaceMethod == 0)
if (wPixels != null) {
/* code changed. target not needed here
t.setPixels(0,row,width,1,cm,wPixels,0,width);
*/
// code added to make it work with ImageDecoder arch
sendPixels(0, row, width, 1, wPixels, 0, width);
// end of adding
} else {
/* code changed. target not needed here
t.setPixels(0,row,width,1,cm,bPixels,0,width);
*/
// code added to make it work with ImageDecoder arch
sendPixels(0, row, width, 1, bPixels, 0, width);
// end of adding
}
row += rowInc;
rowOffset += rowInc * rowStride;
byte[] T = rowByteBuffer;
rowByteBuffer = prevRowByteBuffer;
prevRowByteBuffer = T;
firstRow = false;
}
if (interlaceMethod != 0)
if (wPixels != null) {
/* code changed. target not needed here
t.setPixels(0,0,width,height,cm,wPixels,0,width);
*/
// code added to make it work with ImageDecoder arch
sendPixels(0, 0, width, height, wPixels, 0, width);
// end of adding
} else {
/* code changed. target not needed here
t.setPixels(0,0,width,height,cm,bPixels,0,width);
*/
// code added to make it work with ImageDecoder arch
sendPixels(0, 0, width, height, bPixels, 0, width);
// end of adding
}
}
/* Here, the function "visit(row,column,height,width)" obtains the
next transmitted pixel and paints a rectangle of the specified
height and width, whose upper-left corner is at the specified row
and column, using the color indicated by the pixel. Note that row
and column are measured from 0,0 at the upper left corner. */
/* code not needed, don't deal with target
if((t=target)!=null) {
if(properties!=null) t.setProperties(properties);
t.imageComplete(ImageConsumer.STATICIMAGEDONE);
*/
imageComplete(ImageConsumer.STATICIMAGEDONE, true);
/* code not needed }
is.close();
*/
} catch (IOException e) {
if (!aborted) {
/* code not needed
if((t=target)!=null) {
PNGEncoder.prChunk(e.toString(),inbuf,pos,limit-pos,true);
*/
property("error", e);
/* code not needed
t.setProperties(properties);
t.imageComplete(ImageConsumer.IMAGEERROR|ImageConsumer.STATICIMAGEDONE);
*/
imageComplete(ImageConsumer.IMAGEERROR | ImageConsumer.STATICIMAGEDONE, true);
throw e;
}
} finally {
try {
close();
} catch (Throwable e) {
}
/* code not needed
target = null;
endTurn();
*/
}
}
@Override
protected void computeRect(Raster[] sources, WritableRaster dest, Rectangle destRect) {
synchronized (this) {
if (transform == null) {
int lcms_intent =
intent.getValue() < 4 ? intent.getValue() : LCMS.INTENT_RELATIVE_COLORIMETRIC;
int lcms_proofIntent =
proofIntent.getValue() < 4 ? proofIntent.getValue() : LCMS.INTENT_RELATIVE_COLORIMETRIC;
int lcms_flags =
intent.getValue() == 4 || proofIntent.getValue() == 4
? LCMS.cmsFLAGS_BLACKPOINTCOMPENSATION
: 0;
ColorSpace sourceCS = source.getColorModel().getColorSpace();
LCMS.Profile sourceProfile =
sourceCS instanceof LCMS_ColorSpace
? ((LCMS_ColorSpace) sourceCS).getProfile()
: new LCMS.Profile(((ICC_ColorSpace) sourceCS).getProfile());
ColorSpace targetCS = targetColorModel.getColorSpace();
LCMS.Profile targetProfile =
targetCS instanceof LCMS_ColorSpace
? ((LCMS_ColorSpace) targetCS).getProfile()
: new LCMS.Profile(((ICC_ColorSpace) targetCS).getProfile());
LCMS.Profile proofProfile = proof != null ? new LCMS.Profile(proof) : null;
int inType = mapLCMSType(sourceCS.getType(), source.getColorModel().getTransferType());
int outType = mapLCMSType(targetCS.getType(), colorModel.getTransferType());
transform =
proofProfile != null
? new LCMS.Transform(
sourceProfile,
inType,
targetProfile,
outType,
proofProfile,
lcms_proofIntent,
lcms_intent,
lcms_flags)
: new LCMS.Transform(
sourceProfile, inType, targetProfile, outType, lcms_intent, lcms_flags);
}
}
RasterFormatTag[] formatTags = getFormatTags();
Rectangle srcRect = mapDestRect(destRect, 0);
RasterAccessor src =
new RasterAccessor(sources[0], srcRect, formatTags[0], getSourceImage(0).getColorModel());
RasterAccessor dst = new RasterAccessor(dest, destRect, formatTags[1], this.getColorModel());
if (src.getDataType() == dst.getDataType()) {
transform.doTransform(
src,
formatTags[0],
getSourceImage(0).getColorModel(),
dst,
formatTags[1],
this.getColorModel());
} else {
throw new IllegalArgumentException("Input and output rasters don't match!");
}
}
/**
* Paint the image onto a Graphics object. The painting is performed tile-by-tile, and includes a
* grey region covering the unused portion of image tiles as well as the general background. At
* this point the image must be byte data.
*/
public synchronized void paintComponent(Graphics g) {
Graphics2D g2D = null;
if (g instanceof Graphics2D) {
g2D = (Graphics2D) g;
} else {
return;
}
// if source is null, it's just a component
if (source == null) {
g2D.setColor(getBackground());
g2D.fillRect(0, 0, componentWidth, componentHeight);
return;
}
int transX = -originX;
int transY = -originY;
// Get the clipping rectangle and translate it into image coordinates.
Rectangle clipBounds = g.getClipBounds();
if (clipBounds == null) {
clipBounds = new Rectangle(0, 0, componentWidth, componentHeight);
}
// clear the background (clip it) [minimal optimization here]
if (transX > 0
|| transY > 0
|| transX < (componentWidth - source.getWidth())
|| transY < (componentHeight - source.getHeight())) {
g2D.setColor(getBackground());
g2D.fillRect(0, 0, componentWidth, componentHeight);
}
clipBounds.translate(-transX, -transY);
// Determine the extent of the clipping region in tile coordinates.
int txmin, txmax, tymin, tymax;
int ti, tj;
txmin = XtoTileX(clipBounds.x);
txmin = Math.max(txmin, minTileX);
txmin = Math.min(txmin, maxTileX);
txmax = XtoTileX(clipBounds.x + clipBounds.width - 1);
txmax = Math.max(txmax, minTileX);
txmax = Math.min(txmax, maxTileX);
tymin = YtoTileY(clipBounds.y);
tymin = Math.max(tymin, minTileY);
tymin = Math.min(tymin, maxTileY);
tymax = YtoTileY(clipBounds.y + clipBounds.height - 1);
tymax = Math.max(tymax, minTileY);
tymax = Math.min(tymax, maxTileY);
Insets insets = getInsets();
// Loop over tiles within the clipping region
for (tj = tymin; tj <= tymax; tj++) {
for (ti = txmin; ti <= txmax; ti++) {
int tx = TileXtoX(ti);
int ty = TileYtoY(tj);
Raster tile = source.getTile(ti, tj);
if (tile != null) {
DataBuffer dataBuffer = tile.getDataBuffer();
WritableRaster wr = tile.createWritableRaster(sampleModel, dataBuffer, null);
BufferedImage bi =
new BufferedImage(colorModel, wr, colorModel.isAlphaPremultiplied(), null);
// correctly handles band offsets
if (brightnessEnabled == true) {
SampleModel sm =
sampleModel.createCompatibleSampleModel(tile.getWidth(), tile.getHeight());
WritableRaster raster = RasterFactory.createWritableRaster(sm, null);
BufferedImage bimg =
new BufferedImage(colorModel, raster, colorModel.isAlphaPremultiplied(), null);
// don't move this code
ByteLookupTable lutTable = new ByteLookupTable(0, lutData);
LookupOp lookup = new LookupOp(lutTable, null);
lookup.filter(bi, bimg);
g2D.drawImage(bimg, biop, tx + transX + insets.left, ty + transY + insets.top);
} else {
AffineTransform transform;
transform =
AffineTransform.getTranslateInstance(
tx + transX + insets.left, ty + transY + insets.top);
g2D.drawRenderedImage(bi, transform);
}
}
}
}
}
/**
* Filters the information provided in the <code>setPixels</code> method of the <code>
* ImageConsumer</code> interface which takes an array of integers.
*
* <p>Note: This method is intended to be called by the <code>ImageProducer</code> of the <code>
* Image</code> whose pixels are being filtered. Developers using this class to retrieve pixels
* from an image should avoid calling this method directly since that operation could result in
* problems with retrieving the requested pixels.
*
* @throws IllegalArgumentException if width or height are less than zero.
* @see ImageConsumer#setPixels(int, int, int, int, ColorModel, int[], int, int)
*/
public void setPixels(
int x, int y, int w, int h, ColorModel model, int pixels[], int off, int scansize) {
// Fix 4184230
if (w < 0 || h < 0) {
throw new IllegalArgumentException("Width (" + w + ") and height (" + h + ") must be > 0");
}
// Nothing to do
if (w == 0 || h == 0) {
return;
}
if (y < 0) {
int diff = -y;
if (diff >= h) {
return;
}
off += scansize * diff;
y += diff;
h -= diff;
}
if (y + h > height) {
h = height - y;
if (h <= 0) {
return;
}
}
if (x < 0) {
int diff = -x;
if (diff >= w) {
return;
}
off += diff;
x += diff;
w -= diff;
}
if (x + w > width) {
w = width - x;
if (w <= 0) {
return;
}
}
if (intPixels == null) {
if (bytePixels == null) {
intPixels = new int[width * height];
this.model = model;
} else {
convertToRGB();
}
}
int dstPtr = y * width + x;
if (this.model == model) {
for (int sh = h; sh > 0; sh--) {
System.arraycopy(pixels, off, intPixels, dstPtr, w);
off += scansize;
dstPtr += width;
}
} else {
if (this.model != ColorModel.getRGBdefault()) {
convertToRGB();
}
int dstRem = width - w;
int srcRem = scansize - w;
for (int sh = h; sh > 0; sh--) {
for (int sw = w; sw > 0; sw--) {
intPixels[dstPtr++] = model.getRGB(pixels[off++]);
}
off += srcRem;
dstPtr += dstRem;
}
}
}