public AffineRed(CachableRed src, AffineTransform src2me, RenderingHints hints) {
super(); // We _must_ call init...
this.src2me = src2me;
this.hints = hints;
try {
me2src = src2me.createInverse();
} catch (NoninvertibleTransformException nite) {
me2src = null;
}
// Calculate my bounds by applying the affine transform to
// my input data..codec/
Rectangle srcBounds = src.getBounds();
// srcBounds.grow(-1,-1);
Rectangle myBounds;
myBounds = src2me.createTransformedShape(srcBounds).getBounds();
// If the output buffer is not premultiplied in certain cases it
// fails to properly divide out the Alpha (it always does
// the affine on premultiplied data), hence you get ugly
// back aliasing effects...
ColorModel cm = fixColorModel(src);
// fix my sample model so it makes sense given my size.
SampleModel sm = fixSampleModel(src, cm, myBounds);
Point2D pt = new Point2D.Float(src.getTileGridXOffset(), src.getTileGridYOffset());
pt = src2me.transform(pt, null);
// Finish initializing our base class...
init(src, myBounds, cm, sm, (int) pt.getX(), (int) pt.getY(), null);
}
public WritableRaster copyData(WritableRaster wr) {
// Get my source.
CachableRed src = (CachableRed) getSources().get(0);
Rectangle srcR = src.getBounds();
Rectangle wrR = wr.getBounds();
if (wrR.intersects(srcR)) {
Rectangle r = wrR.intersection(srcR);
// Limit the raster I send to my source to his rect.
WritableRaster srcWR;
srcWR = wr.createWritableChild(r.x, r.y, r.width, r.height, r.x, r.y, null);
src.copyData(srcWR);
}
if (padMode == PadMode.ZERO_PAD) {
handleZero(wr);
} else if (padMode == PadMode.REPLICATE) {
handleReplicate(wr);
} else if (padMode == PadMode.WRAP) {
handleWrap(wr);
}
return wr;
}
/**
* Construct a blurred version of <tt>src</tt>, by blurring with a gaussian kernel with standard
* Deviation of <tt>stdDev</tt> pixels.
*
* @param src The source image to blur
* @param stdDevX The Standard Deviation of the Gaussian kernel in X
* @param stdDevY The Standard Deviation of the Gaussian kernel in Y
* @param rh Rendering hints.
*/
public GaussianBlurRed8Bit(CachableRed src, double stdDevX, double stdDevY, RenderingHints rh) {
super(); // Remember to call super.init()
this.stdDevX = stdDevX;
this.stdDevY = stdDevY;
this.hints = rh;
xinset = surroundPixels(stdDevX, rh);
yinset = surroundPixels(stdDevY, rh);
Rectangle myBounds = src.getBounds();
myBounds.x += xinset;
myBounds.y += yinset;
myBounds.width -= 2 * xinset;
myBounds.height -= 2 * yinset;
if ((myBounds.width <= 0) || (myBounds.height <= 0)) {
myBounds.width = 0;
myBounds.height = 0;
}
ColorModel cm = fixColorModel(src);
SampleModel sm = src.getSampleModel();
int tw = sm.getWidth();
int th = sm.getHeight();
if (tw > myBounds.width) tw = myBounds.width;
if (th > myBounds.height) th = myBounds.height;
sm = cm.createCompatibleSampleModel(tw, th);
init(
src,
myBounds,
cm,
sm,
src.getTileGridXOffset() + xinset,
src.getTileGridYOffset() + yinset,
null);
boolean highQuality =
((hints != null)
&& RenderingHints.VALUE_RENDER_QUALITY.equals(hints.get(RenderingHints.KEY_RENDERING)));
// System.out.println("StdDev: " + stdDevX + "x" + stdDevY);
if ((xinset != 0) && ((stdDevX < 2) || highQuality))
convOp[0] = new ConvolveOp(makeQualityKernelX(xinset * 2 + 1));
else dX = (int) Math.floor(DSQRT2PI * stdDevX + 0.5f);
if ((yinset != 0) && ((stdDevY < 2) || highQuality))
convOp[1] = new ConvolveOp(makeQualityKernelY(yinset * 2 + 1));
else dY = (int) Math.floor(DSQRT2PI * stdDevY + 0.5f);
}
/**
* Construct a luminace image from src.
*
* @param src The image to convert to a luminance image
*/
public Any2LsRGBRed(CachableRed src) {
super(
src,
src.getBounds(),
fixColorModel(src),
fixSampleModel(src),
src.getTileGridXOffset(),
src.getTileGridYOffset(),
null);
ColorModel srcCM = src.getColorModel();
if (srcCM == null) return;
ColorSpace srcCS = srcCM.getColorSpace();
if (srcCS == ColorSpace.getInstance(ColorSpace.CS_sRGB)) srcIssRGB = true;
}
public WritableRaster INT_PACK_BYTE_COMP_Impl(WritableRaster wr) {
// Get my source.
CachableRed srcRed = (CachableRed) getSources().get(0);
CachableRed alphaRed = (CachableRed) getSources().get(1);
// Already has alpha channel so we use it.
srcRed.copyData(wr);
Rectangle rgn = wr.getBounds();
rgn = rgn.intersection(alphaRed.getBounds());
Raster r = alphaRed.getData(rgn);
ComponentSampleModel csm;
csm = (ComponentSampleModel) r.getSampleModel();
final int alpScanStride = csm.getScanlineStride();
DataBufferByte alpDB = (DataBufferByte) r.getDataBuffer();
final int alpBase =
(alpDB.getOffset()
+ csm.getOffset(
rgn.x - r.getSampleModelTranslateX(), rgn.y - r.getSampleModelTranslateY()));
// Access the pixel data array
final byte[] alpPixels = alpDB.getBankData()[0];
SinglePixelPackedSampleModel sppsm;
sppsm = (SinglePixelPackedSampleModel) wr.getSampleModel();
final int srcScanStride = sppsm.getScanlineStride();
DataBufferInt srcDB = (DataBufferInt) wr.getDataBuffer();
final int srcBase =
(srcDB.getOffset()
+ sppsm.getOffset(
rgn.x - wr.getSampleModelTranslateX(), rgn.y - wr.getSampleModelTranslateY()));
// Access the pixel data array
final int[] srcPixels = srcDB.getBankData()[0];
ColorModel cm = srcRed.getColorModel();
if (cm.isAlphaPremultiplied()) {
// For alpha premult we need to multiply all comps.
for (int y = 0; y < rgn.height; y++) {
int sp = srcBase + y * srcScanStride;
int ap = alpBase + y * alpScanStride;
int end = sp + rgn.width;
while (sp < end) {
int a = ((int) alpPixels[ap++]) & 0xFF;
final int pix = srcPixels[sp];
srcPixels[sp] =
((((((pix >>> 24)) * a) & 0xFF00) << 16)
| (((((pix >>> 16) & 0xFF) * a) & 0xFF00) << 8)
| (((((pix >>> 8) & 0xFF) * a) & 0xFF00))
| (((((pix) & 0xFF) * a) & 0xFF00) >> 8));
sp++;
}
}
} else {
// For non-alpha premult we only need to multiply alpha.
for (int y = 0; y < rgn.height; y++) {
int sp = srcBase + y * srcScanStride;
int ap = alpBase + y * alpScanStride;
int end = sp + rgn.width;
while (sp < end) {
int a = ((int) alpPixels[ap++]) & 0xFF;
int sa = srcPixels[sp] >>> 24;
srcPixels[sp] = ((((sa * a) & 0xFF00) << 16) | srcPixels[sp] & 0x00FFFFFF);
sp++;
}
}
}
return wr;
}
public static Rectangle makeBounds(CachableRed src1, CachableRed src2) {
Rectangle r1 = src1.getBounds();
Rectangle r2 = src2.getBounds();
return r1.intersection(r2);
}
public WritableRaster copyData(WritableRaster wr) {
// Get my source.
CachableRed srcRed = (CachableRed) getSources().get(0);
CachableRed alphaRed = (CachableRed) getSources().get(1);
if (is_INT_PACK_BYTE_COMP(srcRed.getSampleModel(), alphaRed.getSampleModel()))
return INT_PACK_BYTE_COMP_Impl(wr);
ColorModel cm = srcRed.getColorModel();
if (cm.hasAlpha()) {
// Already has alpha channel so we use it.
srcRed.copyData(wr);
Rectangle rgn = wr.getBounds();
if (rgn.intersects(alphaRed.getBounds())) rgn = rgn.intersection(alphaRed.getBounds());
else return wr;
int[] wrData = null;
int[] alphaData = null;
Raster r = alphaRed.getData(rgn);
int w = rgn.width;
final int bands = wr.getSampleModel().getNumBands();
if (cm.isAlphaPremultiplied()) {
for (int y = rgn.y; y < rgn.y + rgn.height; y++) {
wrData = wr.getPixels(rgn.x, y, w, 1, wrData);
alphaData = r.getSamples(rgn.x, y, w, 1, 0, alphaData);
int i = 0, a, b;
// 4 is the most common case.
// 2 is probably next most common...
switch (bands) {
case 2:
for (int x = 0; x < alphaData.length; x++) {
a = alphaData[x] & 0xFF;
wrData[i] = ((wrData[i] & 0xFF) * a) >> 8;
++i;
wrData[i] = ((wrData[i] & 0xFF) * a) >> 8;
++i;
}
break;
case 4:
for (int x = 0; x < alphaData.length; x++) {
a = alphaData[x] & 0xFF;
wrData[i] = ((wrData[i] & 0xFF) * a) >> 8;
++i;
wrData[i] = ((wrData[i] & 0xFF) * a) >> 8;
++i;
wrData[i] = ((wrData[i] & 0xFF) * a) >> 8;
++i;
wrData[i] = ((wrData[i] & 0xFF) * a) >> 8;
++i;
}
break;
default:
for (int x = 0; x < alphaData.length; x++) {
a = alphaData[x] & 0xFF;
for (b = 0; b < bands; b++) {
wrData[i] = ((wrData[i] & 0xFF) * a) >> 8;
++i;
}
}
}
wr.setPixels(rgn.x, y, w, 1, wrData);
}
} else {
int b = srcRed.getSampleModel().getNumBands() - 1;
for (int y = rgn.y; y < rgn.y + rgn.height; y++) {
wrData = wr.getSamples(rgn.x, y, w, 1, b, wrData);
alphaData = r.getSamples(rgn.x, y, w, 1, 0, alphaData);
for (int i = 0; i < wrData.length; i++) {
wrData[i] = ((wrData[i] & 0xFF) * (alphaData[i] & 0xFF)) >> 8;
}
wr.setSamples(rgn.x, y, w, 1, b, wrData);
}
}
return wr;
}
// No alpha in source, so we hide the alpha channel in wr and
// have our source fill wr with color info...
int[] bands = new int[wr.getNumBands() - 1];
for (int i = 0; i < bands.length; i++) bands[i] = i;
WritableRaster subWr;
subWr =
wr.createWritableChild(
wr.getMinX(),
wr.getMinY(),
wr.getWidth(),
wr.getHeight(),
wr.getMinX(),
wr.getMinY(),
bands);
srcRed.copyData(subWr);
Rectangle rgn = wr.getBounds();
rgn = rgn.intersection(alphaRed.getBounds());
bands = new int[] {wr.getNumBands() - 1};
subWr = wr.createWritableChild(rgn.x, rgn.y, rgn.width, rgn.height, rgn.x, rgn.y, bands);
alphaRed.copyData(subWr);
return wr;
}
public void genRect(WritableRaster wr) {
if (me2src == null) return;
Rectangle srcR = me2src.createTransformedShape(wr.getBounds()).getBounds();
// System.out.println("Affine wrR: " + wr.getBounds());
// System.out.println("Affine srcR: " + srcR);
// Outset by two pixels so we get context for interpolation...
srcR.setBounds(srcR.x - 1, srcR.y - 1, srcR.width + 2, srcR.height + 2);
// Don't try and get data from src that it doesn't have...
CachableRed src = (CachableRed) getSources().get(0);
// Raster srcRas = src.getData(srcR);
if (!srcR.intersects(src.getBounds())) return;
Raster srcRas = src.getData(srcR.intersection(src.getBounds()));
if (srcRas == null) return;
// This works around the problem that the buffered ops
// completely ignore the coords of the Rasters passed in.
AffineTransform aff = (AffineTransform) src2me.clone();
// Translate what is at 0,0 (which will be what our current
// minX/Y is) to our current minX,minY.
aff.concatenate(AffineTransform.getTranslateInstance(srcRas.getMinX(), srcRas.getMinY()));
Point2D srcPt = new Point2D.Float(wr.getMinX(), wr.getMinY());
srcPt = me2src.transform(srcPt, null);
Point2D destPt =
new Point2D.Double(srcPt.getX() - srcRas.getMinX(), srcPt.getY() - srcRas.getMinY());
destPt = aff.transform(destPt, null);
// Translate what will be at minX,minY to zero, zero
// which where java2d will think the real minX,minY is.
aff.preConcatenate(AffineTransform.getTranslateInstance(-destPt.getX(), -destPt.getY()));
AffineTransformOp op = new AffineTransformOp(aff, hints);
BufferedImage srcBI, myBI;
ColorModel srcCM = src.getColorModel();
ColorModel myCM = getColorModel();
WritableRaster srcWR = (WritableRaster) srcRas;
// If the output buffer is not premultiplied in certain cases
// it fails to properly divide out the Alpha (it always does
// the affine on premultiplied data). We help it out by
// premultiplying for it.
srcCM = GraphicsUtil.coerceData(srcWR, srcCM, true);
srcBI =
new BufferedImage(
srcCM, srcWR.createWritableTranslatedChild(0, 0), srcCM.isAlphaPremultiplied(), null);
myBI =
new BufferedImage(
myCM, wr.createWritableTranslatedChild(0, 0), myCM.isAlphaPremultiplied(), null);
op.filter(srcBI, myBI);
// if ((count % 40) == 0) {
// org.apache.batik.ImageDisplay.showImage("Src: " , srcBI);
// org.apache.batik.ImageDisplay.showImage("Dst: " , myBI);
// }
// count++;
}
protected void handleReplicate(WritableRaster wr) {
// Get my source.
CachableRed src = (CachableRed) getSources().get(0);
Rectangle srcR = src.getBounds();
Rectangle wrR = wr.getBounds();
int x = wrR.x;
int y = wrR.y;
int width = wrR.width;
int height = wrR.height;
Rectangle r;
{
// Calculate an intersection that makes some sense
// even when the rects don't really intersect
// (The x and y ranges will be correct if they
// overlap in one dimension even if they don't
// intersect in both dimensions).
int minX = (srcR.x > x) ? srcR.x : x;
int maxX =
(((srcR.x + srcR.width - 1) < (x + width - 1))
? (srcR.x + srcR.width - 1)
: (x + width - 1));
int minY = (srcR.y > y) ? srcR.y : y;
int maxY =
(((srcR.y + srcR.height - 1) < (y + height - 1))
? (srcR.y + srcR.height - 1)
: (y + height - 1));
int x0 = minX;
int w = maxX - minX + 1;
int y0 = minY;
int h = maxY - minY + 1;
if (w < 0) {
x0 = 0;
w = 0;
}
if (h < 0) {
y0 = 0;
h = 0;
}
r = new Rectangle(x0, y0, w, h);
}
// We split the edge drawing up into four parts.
//
// +-----------------------------+
// | 3 | 1 | 4 |
// | +---------------+ |
// / / / /
// / / src / /
// / / / /
// / / / /
// | +---------------+ |
// | | 2 | |
// +-----------------------------+
//
// Draw #1
if (y < srcR.y) {
int repW = r.width;
int repX = r.x;
int wrX = r.x;
int wrY = y;
if (x + width - 1 <= srcR.x) {
// we are off to the left of src. so set repX to the
// left most pixel...
repW = 1;
repX = srcR.x;
wrX = x + width - 1;
} else if (x >= srcR.x + srcR.width) {
// we are off to the right of src, so set repX to
// the right most pixel
repW = 1;
repX = srcR.x + srcR.width - 1;
wrX = x;
}
// This fills the top row of section 1 from src (we
// go to src instead of getting the data from wr because
// in some cases wr will be completely off the top of src
WritableRaster wr1 = wr.createWritableChild(wrX, wrY, repW, 1, repX, srcR.y, null);
src.copyData(wr1);
wrY++;
int endY = srcR.y;
if (y + height < endY) endY = y + height;
if (wrY < endY) {
int[] pixels = wr.getPixels(wrX, wrY - 1, repW, 1, (int[]) null);
while (wrY < srcR.y) {
wr.setPixels(wrX, wrY, repW, 1, pixels);
wrY++;
}
}
}
// Draw #2
if ((y + height) > (srcR.y + srcR.height)) {
int repW = r.width;
int repX = r.x;
int repY = srcR.y + srcR.height - 1;
int wrX = r.x;
int wrY = srcR.y + srcR.height;
if (wrY < y) wrY = y;
if (x + width <= srcR.x) {
// we are off to the left of src. so set repX to the
// left most pixel...
repW = 1;
repX = srcR.x;
wrX = x + width - 1;
} else if (x >= srcR.x + srcR.width) {
// we are off to the right of src, so set repX to
// the right most pixel
repW = 1;
repX = srcR.x + srcR.width - 1;
wrX = x;
}
if (DEBUG) {
System.out.println("wr: " + wr.getBounds());
System.out.println("req: [" + wrX + ", " + wrY + ", " + repW + ", 1]");
}
// First we get the top row of pixels from src. (we
// go to src instead of getting the data from wr because
// in some cases wr will be completely off the bottom of src).
WritableRaster wr1 = wr.createWritableChild(wrX, wrY, repW, 1, repX, repY, null);
// This fills the top row of section 2 from src
src.copyData(wr1);
wrY++;
int endY = y + height;
if (wrY < endY) {
// This fills the rest of section 2 from the first line.
int[] pixels = wr.getPixels(wrX, wrY - 1, repW, 1, (int[]) null);
while (wrY < endY) {
wr.setPixels(wrX, wrY, repW, 1, pixels);
wrY++;
}
}
}
// Draw #3
if (x < srcR.x) {
// We are garunteed that we have a column of pixels down
// the edge of 1 and src. We simply replicate this column
// out to the edges of 2.
int wrX = srcR.x;
if (x + width <= srcR.x) {
wrX = x + width - 1;
}
int xLoc = x;
int[] pixels = wr.getPixels(wrX, y, 1, height, (int[]) null);
while (xLoc < wrX) {
wr.setPixels(xLoc, y, 1, height, pixels);
xLoc++;
}
}
// Draw #4
if (x + width > srcR.x + srcR.width) {
// We are garunteed that we have a column of pixels down
// the edge of 1 and src. We simply replicate this column
// out to the edges of 3.
int wrX = srcR.x + srcR.width - 1;
if (x >= srcR.x + srcR.width) {
wrX = x;
}
int xLoc = wrX + 1;
int endX = x + width - 1;
int[] pixels = wr.getPixels(wrX, y, 1, height, (int[]) null);
while (xLoc < endX) {
wr.setPixels(xLoc, y, 1, height, pixels);
xLoc++;
}
}
}
protected void handleZero(WritableRaster wr) {
// Get my source.
CachableRed src = (CachableRed) getSources().get(0);
Rectangle srcR = src.getBounds();
Rectangle wrR = wr.getBounds();
ZeroRecter zr = ZeroRecter.getZeroRecter(wr);
// area rect (covers the area left to handle).
Rectangle ar = new Rectangle(wrR.x, wrR.y, wrR.width, wrR.height);
// draw rect (used for calls to zeroRect);
Rectangle dr = new Rectangle(wrR.x, wrR.y, wrR.width, wrR.height);
// We split the edge drawing up into four parts.
//
// +-----------------------------+
// | 1 | 2 |
// | +---------------+------|
// / / /4 /
// / / / /
// / / / /
// / / / /
// | +---------------+------|
// | | 3 |
// +-----------------------------+
//
// We update our x,y, width, height as we go along so
// we 'forget' about the parts we have already painted...
// Draw #1
if (DEBUG) {
System.out.println("WrR: " + wrR + " srcR: " + srcR);
// g2d.setColor(new Color(255,0,0,128));
}
if (ar.x < srcR.x) {
int w = srcR.x - ar.x;
if (w > ar.width) w = ar.width;
// g2d.fillRect(x, y, w, height);
dr.width = w;
zr.zeroRect(dr);
ar.x += w;
ar.width -= w;
}
// Draw #2
if (DEBUG) {
System.out.println(
"WrR: [" + ar.x + "," + ar.y + "," + ar.width + "," + ar.height + "] s rcR: " + srcR);
// g2d.setColor(new Color(0,0,255,128));
}
if (ar.y < srcR.y) {
int h = srcR.y - ar.y;
if (h > ar.height) h = ar.height;
// g2d.fillRect(x, y, width, h);
dr.x = ar.x;
dr.y = ar.y;
dr.width = ar.width;
dr.height = h;
zr.zeroRect(dr);
ar.y += h;
ar.height -= h;
}
// Draw #3
if (DEBUG) {
System.out.println(
"WrR: [" + ar.x + "," + ar.y + "," + ar.width + "," + ar.height + "] srcR: " + srcR);
// g2d.setColor(new Color(0,255,0,128));
}
if (ar.y + ar.height > srcR.y + srcR.height) {
int h = (ar.y + ar.height) - (srcR.y + srcR.height);
if (h > ar.height) h = ar.height;
int y0 = ar.y + ar.height - h; // the +/-1 cancel (?)
// g2d.fillRect(x, y0, width, h);
dr.x = ar.x;
dr.y = y0;
dr.width = ar.width;
dr.height = h;
zr.zeroRect(dr);
ar.height -= h;
}
// Draw #4
if (DEBUG) {
System.out.println(
"WrR: [" + ar.x + "," + ar.y + "," + ar.width + "," + ar.height + "] srcR: " + srcR);
// g2d.setColor(new Color(255,255,0,128));
}
if (ar.x + ar.width > srcR.x + srcR.width) {
int w = (ar.x + ar.width) - (srcR.x + srcR.width);
if (w > ar.width) w = ar.width;
int x0 = ar.x + ar.width - w; // the +/-1 cancel (?)
// g2d.fillRect(x0, y, w, height);
dr.x = x0;
dr.y = ar.y;
dr.width = w;
dr.height = ar.height;
zr.zeroRect(dr);
ar.width -= w;
}
}
