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 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 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;
}
/**
* 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);
}
}
}
}
}
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);
}
