public IndexColorModel transformMap(IndexColorModel icm) {
if (!icm.hasAlpha())
throw new IllegalArgumentException("Must have alpha channel in order to scale alpha!");
byte[][] table = ColorMapUtils.extractTable(icm);
table[3] = linearScale(table[3]);
icm = new IndexColorModel(8, icm.getMapSize(), table[0], table[1], table[2], table[3]);
return icm;
}
private RenderedImage forceComponentColorModel(RenderedImage image) {
final IndexColorModel icm = (IndexColorModel) image.getColorModel();
final SampleModel sm = image.getSampleModel();
final int datatype = sm.getDataType();
final boolean alpha = icm.hasAlpha();
// Definition of the lookup table
final int numDestinationBands = 4;
LookupTableJAI lut = null;
final byte data[][] = new byte[numDestinationBands][icm.getMapSize()];
icm.getReds(data[0]);
icm.getGreens(data[1]);
icm.getBlues(data[2]);
icm.getAlphas(data[3]);
lut = new LookupTableJAI(data);
// Layout creation
final ImageLayout layout = new ImageLayout(image);
final RenderingHints hints = new RenderingHints(JAI.KEY_IMAGE_LAYOUT, layout);
int[] bits = new int[numDestinationBands];
// bits per component
for (int i = 0; i < numDestinationBands; i++) bits[i] = sm.getSampleSize(i);
final ComponentColorModel destinationColorModel =
new ComponentColorModel(
ColorSpace.getInstance(ColorSpace.CS_sRGB),
bits,
alpha,
image.getColorModel().isAlphaPremultiplied(),
alpha ? Transparency.TRANSLUCENT : Transparency.OPAQUE,
datatype);
final SampleModel destinationSampleModel =
destinationColorModel.createCompatibleSampleModel(image.getWidth(), image.getHeight());
layout.setColorModel(destinationColorModel);
layout.setSampleModel(destinationSampleModel);
// Lookup Operations
image =
LookupDescriptor.create(image, new LookupTableWrapper(lut), 0, null, null, false, hints);
return image;
}
public void setPixels(
int x, int y, int w, int h, ColorModel model, byte pix[], int off, int scansize) {
int lineOff = off;
int poff;
int[] newLUT = null;
if (src != null) {
src.checkSecurity(null, false);
}
// REMIND: What if the model doesn't fit in default color model?
synchronized (this) {
if (bimage == null) {
if (cmodel == null) {
cmodel = model;
}
createBufferedImage();
}
if (w <= 0 || h <= 0) {
return;
}
int biWidth = biRaster.getWidth();
int biHeight = biRaster.getHeight();
int x1 = x + w; // Overflow protection below
int y1 = y + h; // Overflow protection below
if (x < 0) {
off -= x;
x = 0;
} else if (x1 < 0) {
x1 = biWidth; // Must be overflow
}
if (y < 0) {
off -= y * scansize;
y = 0;
} else if (y1 < 0) {
y1 = biHeight; // Must be overflow
}
if (x1 > biWidth) {
x1 = biWidth;
}
if (y1 > biHeight) {
y1 = biHeight;
}
if (x >= x1 || y >= y1) {
return;
}
// x,y,x1,y1 are all >= 0, so w,h must be >= 0
w = x1 - x;
h = y1 - y;
// off is first pixel read so it must be in bounds
if (off < 0 || off >= pix.length) {
// They overflowed their own array
throw new ArrayIndexOutOfBoundsException("Data offset out of bounds.");
}
// pix.length and off are >= 0 so remainder >= 0
int remainder = pix.length - off;
if (remainder < w) {
// They overflowed their own array
throw new ArrayIndexOutOfBoundsException("Data array is too short.");
}
int num;
if (scansize < 0) {
num = (off / -scansize) + 1;
} else if (scansize > 0) {
num = ((remainder - w) / scansize) + 1;
} else {
num = h;
}
if (h > num) {
// They overflowed their own array.
throw new ArrayIndexOutOfBoundsException("Data array is too short.");
}
if (isSameCM
&& (cmodel != model)
&& (srcLUT != null)
&& (model instanceof IndexColorModel)
&& (biRaster instanceof ByteComponentRaster)) {
IndexColorModel icm = (IndexColorModel) model;
ByteComponentRaster bct = (ByteComponentRaster) biRaster;
int numlut = numSrcLUT;
if (!setDiffICM(
x,
y,
w,
h,
srcLUT,
srcLUTtransIndex,
numSrcLUT,
icm,
pix,
off,
scansize,
bct,
bct.getDataOffset(0))) {
convertToRGB();
} else {
// Note that setDiffICM modified the raster directly
// so we must mark it as changed
bct.markDirty();
if (numlut != numSrcLUT) {
boolean hasAlpha = icm.hasAlpha();
if (srcLUTtransIndex != -1) {
hasAlpha = true;
}
int nbits = icm.getPixelSize();
icm =
new IndexColorModel(
nbits,
numSrcLUT,
srcLUT,
0,
hasAlpha,
srcLUTtransIndex,
(nbits > 8 ? DataBuffer.TYPE_USHORT : DataBuffer.TYPE_BYTE));
cmodel = icm;
bimage = createImage(icm, bct, false, null);
}
return;
}
}
if (isDefaultBI) {
int pixel;
IntegerComponentRaster iraster = (IntegerComponentRaster) biRaster;
if (srcLUT != null && model instanceof IndexColorModel) {
if (model != srcModel) {
// Fill in the new lut
((IndexColorModel) model).getRGBs(srcLUT);
srcModel = model;
}
if (s_useNative) {
// Note that setICMpixels modifies the raster directly
// so we must mark it as changed afterwards
if (setICMpixels(x, y, w, h, srcLUT, pix, off, scansize, iraster)) {
iraster.markDirty();
} else {
abort();
return;
}
} else {
int[] storage = new int[w * h];
int soff = 0;
// It is an IndexColorModel
for (int yoff = 0; yoff < h; yoff++, lineOff += scansize) {
poff = lineOff;
for (int i = 0; i < w; i++) {
storage[soff++] = srcLUT[pix[poff++] & 0xff];
}
}
iraster.setDataElements(x, y, w, h, storage);
}
} else {
int[] storage = new int[w];
for (int yoff = y; yoff < y + h; yoff++, lineOff += scansize) {
poff = lineOff;
for (int i = 0; i < w; i++) {
storage[i] = model.getRGB(pix[poff++] & 0xff);
}
iraster.setDataElements(x, yoff, w, 1, storage);
}
availinfo |= ImageObserver.SOMEBITS;
}
} else if ((cmodel == model)
&& (biRaster instanceof ByteComponentRaster)
&& (biRaster.getNumDataElements() == 1)) {
ByteComponentRaster bt = (ByteComponentRaster) biRaster;
if (off == 0 && scansize == w) {
bt.putByteData(x, y, w, h, pix);
} else {
byte[] bpix = new byte[w];
poff = off;
for (int yoff = y; yoff < y + h; yoff++) {
System.arraycopy(pix, poff, bpix, 0, w);
bt.putByteData(x, yoff, w, 1, bpix);
poff += scansize;
}
}
} else {
for (int yoff = y; yoff < y + h; yoff++, lineOff += scansize) {
poff = lineOff;
for (int xoff = x; xoff < x + w; xoff++) {
bimage.setRGB(xoff, yoff, model.getRGB(pix[poff++] & 0xff));
}
}
availinfo |= ImageObserver.SOMEBITS;
}
}
if ((availinfo & ImageObserver.FRAMEBITS) == 0) {
newInfo(image, ImageObserver.SOMEBITS, x, y, w, h);
}
}
/* (non-Javadoc)
* @see deadbeef.SupTools.SubtitleStream#decode(int)
*/
@Override
public void decode(int index) throws CoreException {
try {
File f = new File(subPictures.get(index).getFileName());
if (!f.exists()) {
throw new CoreException("file " + subPictures.get(index).getFileName() + " not found.");
}
BufferedImage img = ImageIO.read(f);
int w = img.getWidth();
int h = img.getHeight();
this.palette = null;
// first try to read image and palette directly from imported image
if (img.getType() == BufferedImage.TYPE_BYTE_INDEXED) {
IndexColorModel icm = (IndexColorModel) img.getColorModel();
if (icm.getMapSize() < 255 || (icm.hasAlpha() && icm.getAlpha(255) == 0)) {
// create palette
palette = new Palette(256);
for (int i = 0; i < icm.getMapSize(); i++) {
int alpha = (icm.getRGB(i) >> 24) & 0xff;
if (alpha >= configuration.getAlphaCrop()) {
palette.setARGB(i, icm.getRGB(i));
} else {
palette.setARGB(i, 0);
}
}
// copy pixels
WritableRaster raster = img.getRaster();
bitmap =
new Bitmap(
img.getWidth(),
img.getHeight(),
(byte[]) raster.getDataElements(0, 0, img.getWidth(), img.getHeight(), null));
}
}
// if this failed, assume RGB image and quantize palette
if (palette == null) {
// grab int array (ARGB)
int[] pixels = new int[w * h];
img.getRGB(0, 0, w, h, pixels, 0, w);
// quantize image
QuantizeFilter qf = new QuantizeFilter();
bitmap = new Bitmap(img.getWidth(), img.getHeight());
int ct[] = qf.quantize(pixels, bitmap.getInternalBuffer(), w, h, 255, false, false);
int size = ct.length;
if (size > 255) {
logger.warn("Quantizer failed.\n");
size = 255;
}
// create palette
palette = new Palette(256);
for (int i = 0; i < size; i++) {
int alpha = (ct[i] >> 24) & 0xff;
if (alpha >= configuration.getAlphaCrop()) {
palette.setARGB(i, ct[i]);
} else {
palette.setARGB(i, 0);
}
}
}
primaryColorIndex =
bitmap.getPrimaryColorIndex(
palette.getAlpha(), configuration.getAlphaThreshold(), palette.getY());
// crop
BitmapBounds bounds =
bitmap.getCroppingBounds(palette.getAlpha(), configuration.getAlphaCrop());
if (bounds.yMin > 0
|| bounds.xMin > 0
|| bounds.xMax < bitmap.getWidth() - 1
|| bounds.yMax < bitmap.getHeight() - 1) {
w = bounds.xMax - bounds.xMin + 1;
h = bounds.yMax - bounds.yMin + 1;
if (w < 2) {
w = 2;
}
if (h < 2) {
h = 2;
}
bitmap = bitmap.crop(bounds.xMin, bounds.yMin, w, h);
// update picture
SubPictureXml pic = subPictures.get(index);
pic.setImageWidth(w);
pic.setImageHeight(h);
pic.setOfsX(pic.getOriginalXOffset() + bounds.xMin);
pic.setOfsY(pic.getOriginalYOffset() + bounds.yMin);
}
} catch (IOException e) {
throw new CoreException(e.getMessage());
} catch (OutOfMemoryError e) {
JOptionPane.showMessageDialog(
null,
"Out of heap! Use -Xmx256m to increase heap!",
"Error!",
JOptionPane.WARNING_MESSAGE);
throw new CoreException("Out of heap! Use -Xmx256m to increase heap!");
}
}
