Examples with IndexColorModel java.awt.image.IndexColorModel used on opensource projects

Example 36 with IndexColorModel

use of java.awt.image.IndexColorModel in project jdk8u_jdk by JetBrains.

the class ImageRepresentation method convertToRGB.

private void convertToRGB() {
    int w = bimage.getWidth();
    int h = bimage.getHeight();
    int size = w * h;
    DataBufferInt dbi = new DataBufferInt(size);
    // Note that stealData() requires a markDirty() afterwards
    // since we modify the data in it.
    int[] newpixels = SunWritableRaster.stealData(dbi, 0);
    if (cmodel instanceof IndexColorModel && biRaster instanceof ByteComponentRaster && biRaster.getNumDataElements() == 1) {
        ByteComponentRaster bct = (ByteComponentRaster) biRaster;
        byte[] data = bct.getDataStorage();
        int coff = bct.getDataOffset(0);
        for (int i = 0; i < size; i++) {
            newpixels[i] = srcLUT[data[coff + i] & 0xff];
        }
    } else {
        Object srcpixels = null;
        int off = 0;
        for (int y = 0; y < h; y++) {
            for (int x = 0; x < w; x++) {
                srcpixels = biRaster.getDataElements(x, y, srcpixels);
                newpixels[off++] = cmodel.getRGB(srcpixels);
            }
        }
    }
    // We modified the data array directly above so mark it as dirty now...
    SunWritableRaster.markDirty(dbi);
    isSameCM = false;
    cmodel = ColorModel.getRGBdefault();
    int[] bandMasks = { 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 };
    biRaster = Raster.createPackedRaster(dbi, w, h, w, bandMasks, null);
    bimage = createImage(cmodel, biRaster, cmodel.isAlphaPremultiplied(), null);
    srcLUT = null;
    isDefaultBI = true;
}

Example 37 with IndexColorModel

use of java.awt.image.IndexColorModel in project jdk8u_jdk by JetBrains.

the class ImageRepresentation method setPixels.

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();
        // Overflow protection below
        int x1 = x + w;
        // Overflow protection below
        int y1 = y + h;
        if (x < 0) {
            off -= x;
            x = 0;
        } else if (x1 < 0) {
            // Must be overflow
            x1 = biWidth;
        }
        if (y < 0) {
            off -= y * scansize;
            y = 0;
        } else if (y1 < 0) {
            // Must be overflow
            y1 = biHeight;
        }
        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) {
                    // 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);
    }
}

Example 38 with IndexColorModel

use of java.awt.image.IndexColorModel in project jdk8u_jdk by JetBrains.

the class JPEGImageWriter method writeOnThread.

private void writeOnThread(IIOMetadata streamMetadata, IIOImage image, ImageWriteParam param) throws IOException {
    if (ios == null) {
        throw new IllegalStateException("Output has not been set!");
    }
    if (image == null) {
        throw new IllegalArgumentException("image is null!");
    }
    // if streamMetadata is not null, issue a warning
    if (streamMetadata != null) {
        warningOccurred(WARNING_STREAM_METADATA_IGNORED);
    }
    // Obtain the raster and image, if there is one
    boolean rasterOnly = image.hasRaster();
    RenderedImage rimage = null;
    if (rasterOnly) {
        srcRas = image.getRaster();
    } else {
        rimage = image.getRenderedImage();
        if (rimage instanceof BufferedImage) {
            // Use the Raster directly.
            srcRas = ((BufferedImage) rimage).getRaster();
        } else if (rimage.getNumXTiles() == 1 && rimage.getNumYTiles() == 1) {
            // Get the unique tile.
            srcRas = rimage.getTile(rimage.getMinTileX(), rimage.getMinTileY());
            // as the tile dimensions might differ.
            if (srcRas.getWidth() != rimage.getWidth() || srcRas.getHeight() != rimage.getHeight()) {
                srcRas = srcRas.createChild(srcRas.getMinX(), srcRas.getMinY(), rimage.getWidth(), rimage.getHeight(), srcRas.getMinX(), srcRas.getMinY(), null);
            }
        } else {
            // Image is tiled so get a contiguous raster by copying.
            srcRas = rimage.getData();
        }
    }
    // Now determine if we are using a band subset
    // By default, we are using all source bands
    int numSrcBands = srcRas.getNumBands();
    indexed = false;
    indexCM = null;
    ColorModel cm = null;
    ColorSpace cs = null;
    isAlphaPremultiplied = false;
    srcCM = null;
    if (!rasterOnly) {
        cm = rimage.getColorModel();
        if (cm != null) {
            cs = cm.getColorSpace();
            if (cm instanceof IndexColorModel) {
                indexed = true;
                indexCM = (IndexColorModel) cm;
                numSrcBands = cm.getNumComponents();
            }
            if (cm.isAlphaPremultiplied()) {
                isAlphaPremultiplied = true;
                srcCM = cm;
            }
        }
    }
    srcBands = JPEG.bandOffsets[numSrcBands - 1];
    int numBandsUsed = numSrcBands;
    if (param != null) {
        int[] sBands = param.getSourceBands();
        if (sBands != null) {
            if (indexed) {
                warningOccurred(WARNING_NO_BANDS_ON_INDEXED);
            } else {
                srcBands = sBands;
                numBandsUsed = srcBands.length;
                if (numBandsUsed > numSrcBands) {
                    throw new IIOException("ImageWriteParam specifies too many source bands");
                }
            }
        }
    }
    boolean usingBandSubset = (numBandsUsed != numSrcBands);
    boolean fullImage = ((!rasterOnly) && (!usingBandSubset));
    int[] bandSizes = null;
    if (!indexed) {
        bandSizes = srcRas.getSampleModel().getSampleSize();
        // If this is a subset, we must adjust bandSizes
        if (usingBandSubset) {
            int[] temp = new int[numBandsUsed];
            for (int i = 0; i < numBandsUsed; i++) {
                temp[i] = bandSizes[srcBands[i]];
            }
            bandSizes = temp;
        }
    } else {
        int[] tempSize = srcRas.getSampleModel().getSampleSize();
        bandSizes = new int[numSrcBands];
        for (int i = 0; i < numSrcBands; i++) {
            // All the same
            bandSizes[i] = tempSize[0];
        }
    }
    for (int i = 0; i < bandSizes.length; i++) {
        // per sample.
        if (bandSizes[i] <= 0 || bandSizes[i] > 8) {
            throw new IIOException("Illegal band size: should be 0 < size <= 8");
        }
        // to 8-bit.
        if (indexed) {
            bandSizes[i] = 8;
        }
    }
    if (debug) {
        System.out.println("numSrcBands is " + numSrcBands);
        System.out.println("numBandsUsed is " + numBandsUsed);
        System.out.println("usingBandSubset is " + usingBandSubset);
        System.out.println("fullImage is " + fullImage);
        System.out.print("Band sizes:");
        for (int i = 0; i < bandSizes.length; i++) {
            System.out.print(" " + bandSizes[i]);
        }
        System.out.println();
    }
    // Destination type, if there is one
    ImageTypeSpecifier destType = null;
    if (param != null) {
        destType = param.getDestinationType();
        // Ignore dest type if we are writing a complete image
        if ((fullImage) && (destType != null)) {
            warningOccurred(WARNING_DEST_IGNORED);
            destType = null;
        }
    }
    // Examine the param
    sourceXOffset = srcRas.getMinX();
    sourceYOffset = srcRas.getMinY();
    int imageWidth = srcRas.getWidth();
    int imageHeight = srcRas.getHeight();
    sourceWidth = imageWidth;
    sourceHeight = imageHeight;
    int periodX = 1;
    int periodY = 1;
    int gridX = 0;
    int gridY = 0;
    JPEGQTable[] qTables = null;
    JPEGHuffmanTable[] DCHuffmanTables = null;
    JPEGHuffmanTable[] ACHuffmanTables = null;
    boolean optimizeHuffman = false;
    JPEGImageWriteParam jparam = null;
    int progressiveMode = ImageWriteParam.MODE_DISABLED;
    if (param != null) {
        Rectangle sourceRegion = param.getSourceRegion();
        if (sourceRegion != null) {
            Rectangle imageBounds = new Rectangle(sourceXOffset, sourceYOffset, sourceWidth, sourceHeight);
            sourceRegion = sourceRegion.intersection(imageBounds);
            sourceXOffset = sourceRegion.x;
            sourceYOffset = sourceRegion.y;
            sourceWidth = sourceRegion.width;
            sourceHeight = sourceRegion.height;
        }
        if (sourceWidth + sourceXOffset > imageWidth) {
            sourceWidth = imageWidth - sourceXOffset;
        }
        if (sourceHeight + sourceYOffset > imageHeight) {
            sourceHeight = imageHeight - sourceYOffset;
        }
        periodX = param.getSourceXSubsampling();
        periodY = param.getSourceYSubsampling();
        gridX = param.getSubsamplingXOffset();
        gridY = param.getSubsamplingYOffset();
        switch(param.getCompressionMode()) {
            case ImageWriteParam.MODE_DISABLED:
                throw new IIOException("JPEG compression cannot be disabled");
            case ImageWriteParam.MODE_EXPLICIT:
                float quality = param.getCompressionQuality();
                quality = JPEG.convertToLinearQuality(quality);
                qTables = new JPEGQTable[2];
                qTables[0] = JPEGQTable.K1Luminance.getScaledInstance(quality, true);
                qTables[1] = JPEGQTable.K2Chrominance.getScaledInstance(quality, true);
                break;
            case ImageWriteParam.MODE_DEFAULT:
                qTables = new JPEGQTable[2];
                qTables[0] = JPEGQTable.K1Div2Luminance;
                qTables[1] = JPEGQTable.K2Div2Chrominance;
                break;
        }
        progressiveMode = param.getProgressiveMode();
        if (param instanceof JPEGImageWriteParam) {
            jparam = (JPEGImageWriteParam) param;
            optimizeHuffman = jparam.getOptimizeHuffmanTables();
        }
    }
    // Now examine the metadata
    IIOMetadata mdata = image.getMetadata();
    if (mdata != null) {
        if (mdata instanceof JPEGMetadata) {
            metadata = (JPEGMetadata) mdata;
            if (debug) {
                System.out.println("We have metadata, and it's JPEG metadata");
            }
        } else {
            if (!rasterOnly) {
                ImageTypeSpecifier type = destType;
                if (type == null) {
                    type = new ImageTypeSpecifier(rimage);
                }
                metadata = (JPEGMetadata) convertImageMetadata(mdata, type, param);
            } else {
                warningOccurred(WARNING_METADATA_NOT_JPEG_FOR_RASTER);
            }
        }
    }
    // First set a default state
    // If it's there, use it
    ignoreJFIF = false;
    // If it's there, use it
    ignoreAdobe = false;
    // Change if needed
    newAdobeTransform = JPEG.ADOBE_IMPOSSIBLE;
    writeDefaultJFIF = false;
    writeAdobe = false;
    // By default we'll do no conversion:
    int inCsType = JPEG.JCS_UNKNOWN;
    int outCsType = JPEG.JCS_UNKNOWN;
    JFIFMarkerSegment jfif = null;
    AdobeMarkerSegment adobe = null;
    SOFMarkerSegment sof = null;
    if (metadata != null) {
        jfif = (JFIFMarkerSegment) metadata.findMarkerSegment(JFIFMarkerSegment.class, true);
        adobe = (AdobeMarkerSegment) metadata.findMarkerSegment(AdobeMarkerSegment.class, true);
        sof = (SOFMarkerSegment) metadata.findMarkerSegment(SOFMarkerSegment.class, true);
    }
    // By default don't write one
    iccProfile = null;
    // PhotoYCC does this
    convertTosRGB = false;
    converted = null;
    if (destType != null) {
        if (numBandsUsed != destType.getNumBands()) {
            throw new IIOException("Number of source bands != number of destination bands");
        }
        cs = destType.getColorModel().getColorSpace();
        // Check the metadata against the destination type
        if (metadata != null) {
            checkSOFBands(sof, numBandsUsed);
            checkJFIF(jfif, destType, false);
            // Do we want to write an ICC profile?
            if ((jfif != null) && (ignoreJFIF == false)) {
                if (JPEG.isNonStandardICC(cs)) {
                    iccProfile = ((ICC_ColorSpace) cs).getProfile();
                }
            }
            checkAdobe(adobe, destType, false);
        } else {
            // If we can add a JFIF or an Adobe marker segment, do so
            if (JPEG.isJFIFcompliant(destType, false)) {
                writeDefaultJFIF = true;
                // Do we want to write an ICC profile?
                if (JPEG.isNonStandardICC(cs)) {
                    iccProfile = ((ICC_ColorSpace) cs).getProfile();
                }
            } else {
                int transform = JPEG.transformForType(destType, false);
                if (transform != JPEG.ADOBE_IMPOSSIBLE) {
                    writeAdobe = true;
                    newAdobeTransform = transform;
                }
            }
            // re-create the metadata
            metadata = new JPEGMetadata(destType, null, this);
        }
        inCsType = getSrcCSType(destType);
        outCsType = getDefaultDestCSType(destType);
    } else {
        // no destination type
        if (metadata == null) {
            if (fullImage) {
                // no dest, no metadata, full image
                // Use default metadata matching the image and param
                metadata = new JPEGMetadata(new ImageTypeSpecifier(rimage), param, this);
                if (metadata.findMarkerSegment(JFIFMarkerSegment.class, true) != null) {
                    cs = rimage.getColorModel().getColorSpace();
                    if (JPEG.isNonStandardICC(cs)) {
                        iccProfile = ((ICC_ColorSpace) cs).getProfile();
                    }
                }
                inCsType = getSrcCSType(rimage);
                outCsType = getDefaultDestCSType(rimage);
            }
        // else no dest, no metadata, not an image,
        // so no special headers, no color conversion
        } else {
            // no dest type, but there is metadata
            checkSOFBands(sof, numBandsUsed);
            if (fullImage) {
                // no dest, metadata, image
                // Check that the metadata and the image match
                ImageTypeSpecifier inputType = new ImageTypeSpecifier(rimage);
                inCsType = getSrcCSType(rimage);
                if (cm != null) {
                    boolean alpha = cm.hasAlpha();
                    switch(cs.getType()) {
                        case ColorSpace.TYPE_GRAY:
                            if (!alpha) {
                                outCsType = JPEG.JCS_GRAYSCALE;
                            } else {
                                if (jfif != null) {
                                    ignoreJFIF = true;
                                    warningOccurred(WARNING_IMAGE_METADATA_JFIF_MISMATCH);
                                }
                            // out colorspace remains unknown
                            }
                            if ((adobe != null) && (adobe.transform != JPEG.ADOBE_UNKNOWN)) {
                                newAdobeTransform = JPEG.ADOBE_UNKNOWN;
                                warningOccurred(WARNING_IMAGE_METADATA_ADOBE_MISMATCH);
                            }
                            break;
                        case ColorSpace.TYPE_RGB:
                            if (!alpha) {
                                if (jfif != null) {
                                    outCsType = JPEG.JCS_YCbCr;
                                    if (JPEG.isNonStandardICC(cs) || ((cs instanceof ICC_ColorSpace) && (jfif.iccSegment != null))) {
                                        iccProfile = ((ICC_ColorSpace) cs).getProfile();
                                    }
                                } else if (adobe != null) {
                                    switch(adobe.transform) {
                                        case JPEG.ADOBE_UNKNOWN:
                                            outCsType = JPEG.JCS_RGB;
                                            break;
                                        case JPEG.ADOBE_YCC:
                                            outCsType = JPEG.JCS_YCbCr;
                                            break;
                                        default:
                                            warningOccurred(WARNING_IMAGE_METADATA_ADOBE_MISMATCH);
                                            newAdobeTransform = JPEG.ADOBE_UNKNOWN;
                                            outCsType = JPEG.JCS_RGB;
                                            break;
                                    }
                                } else {
                                    // consult the ids
                                    int outCS = sof.getIDencodedCSType();
                                    // consult the sampling factors
                                    if (outCS != JPEG.JCS_UNKNOWN) {
                                        outCsType = outCS;
                                    } else {
                                        boolean subsampled = isSubsampled(sof.componentSpecs);
                                        if (subsampled) {
                                            outCsType = JPEG.JCS_YCbCr;
                                        } else {
                                            outCsType = JPEG.JCS_RGB;
                                        }
                                    }
                                }
                            } else {
                                // RGBA
                                if (jfif != null) {
                                    ignoreJFIF = true;
                                    warningOccurred(WARNING_IMAGE_METADATA_JFIF_MISMATCH);
                                }
                                if (adobe != null) {
                                    if (adobe.transform != JPEG.ADOBE_UNKNOWN) {
                                        newAdobeTransform = JPEG.ADOBE_UNKNOWN;
                                        warningOccurred(WARNING_IMAGE_METADATA_ADOBE_MISMATCH);
                                    }
                                    outCsType = JPEG.JCS_RGBA;
                                } else {
                                    // consult the ids
                                    int outCS = sof.getIDencodedCSType();
                                    // consult the sampling factors
                                    if (outCS != JPEG.JCS_UNKNOWN) {
                                        outCsType = outCS;
                                    } else {
                                        boolean subsampled = isSubsampled(sof.componentSpecs);
                                        outCsType = subsampled ? JPEG.JCS_YCbCrA : JPEG.JCS_RGBA;
                                    }
                                }
                            }
                            break;
                        case ColorSpace.TYPE_3CLR:
                            if (cs == JPEG.JCS.getYCC()) {
                                if (!alpha) {
                                    if (jfif != null) {
                                        convertTosRGB = true;
                                        convertOp = new ColorConvertOp(cs, JPEG.JCS.sRGB, null);
                                        outCsType = JPEG.JCS_YCbCr;
                                    } else if (adobe != null) {
                                        if (adobe.transform != JPEG.ADOBE_YCC) {
                                            newAdobeTransform = JPEG.ADOBE_YCC;
                                            warningOccurred(WARNING_IMAGE_METADATA_ADOBE_MISMATCH);
                                        }
                                        outCsType = JPEG.JCS_YCC;
                                    } else {
                                        outCsType = JPEG.JCS_YCC;
                                    }
                                } else {
                                    // PhotoYCCA
                                    if (jfif != null) {
                                        ignoreJFIF = true;
                                        warningOccurred(WARNING_IMAGE_METADATA_JFIF_MISMATCH);
                                    } else if (adobe != null) {
                                        if (adobe.transform != JPEG.ADOBE_UNKNOWN) {
                                            newAdobeTransform = JPEG.ADOBE_UNKNOWN;
                                            warningOccurred(WARNING_IMAGE_METADATA_ADOBE_MISMATCH);
                                        }
                                    }
                                    outCsType = JPEG.JCS_YCCA;
                                }
                            }
                    }
                }
            }
        // else no dest, metadata, not an image.  Defaults ok
        }
    }
    boolean metadataProgressive = false;
    int[] scans = null;
    if (metadata != null) {
        if (sof == null) {
            sof = (SOFMarkerSegment) metadata.findMarkerSegment(SOFMarkerSegment.class, true);
        }
        if ((sof != null) && (sof.tag == JPEG.SOF2)) {
            metadataProgressive = true;
            if (progressiveMode == ImageWriteParam.MODE_COPY_FROM_METADATA) {
                // Might still be null
                scans = collectScans(metadata, sof);
            } else {
                numScans = 0;
            }
        }
        if (jfif == null) {
            jfif = (JFIFMarkerSegment) metadata.findMarkerSegment(JFIFMarkerSegment.class, true);
        }
    }
    thumbnails = image.getThumbnails();
    int numThumbs = image.getNumThumbnails();
    forceJFIF = false;
    // then thumbnails can be written
    if (!writeDefaultJFIF) {
        // If there is no metadata, then we can't write thumbnails
        if (metadata == null) {
            thumbnails = null;
            if (numThumbs != 0) {
                warningOccurred(WARNING_IGNORING_THUMBS);
            }
        } else {
            // then the user must specify JFIF on the metadata
            if (fullImage == false) {
                if (jfif == null) {
                    // Or we can't include thumbnails
                    thumbnails = null;
                    if (numThumbs != 0) {
                        warningOccurred(WARNING_IGNORING_THUMBS);
                    }
                }
            } else {
                // It is a full image, and there is metadata
                if (jfif == null) {
                    // Can it have JFIF?
                    if ((outCsType == JPEG.JCS_GRAYSCALE) || (outCsType == JPEG.JCS_YCbCr)) {
                        if (numThumbs != 0) {
                            forceJFIF = true;
                            warningOccurred(WARNING_FORCING_JFIF);
                        }
                    } else {
                        // Nope, not JFIF-compatible
                        thumbnails = null;
                        if (numThumbs != 0) {
                            warningOccurred(WARNING_IGNORING_THUMBS);
                        }
                    }
                }
            }
        }
    }
    // Set up a boolean to indicate whether we need to call back to
    // write metadata
    boolean haveMetadata = ((metadata != null) || writeDefaultJFIF || writeAdobe);
    // Now that we have dealt with metadata, finalize our tables set up
    // Are we going to write tables?  By default, yes.
    boolean writeDQT = true;
    boolean writeDHT = true;
    // But if the metadata has no tables, no.
    DQTMarkerSegment dqt = null;
    DHTMarkerSegment dht = null;
    int restartInterval = 0;
    if (metadata != null) {
        dqt = (DQTMarkerSegment) metadata.findMarkerSegment(DQTMarkerSegment.class, true);
        dht = (DHTMarkerSegment) metadata.findMarkerSegment(DHTMarkerSegment.class, true);
        DRIMarkerSegment dri = (DRIMarkerSegment) metadata.findMarkerSegment(DRIMarkerSegment.class, true);
        if (dri != null) {
            restartInterval = dri.restartInterval;
        }
        if (dqt == null) {
            writeDQT = false;
        }
        if (dht == null) {
            // Ignored if optimizeHuffman is true
            writeDHT = false;
        }
    }
    // to use
    if (qTables == null) {
        // Get them from metadata, or use defaults
        if (dqt != null) {
            qTables = collectQTablesFromMetadata(metadata);
        } else if (streamQTables != null) {
            qTables = streamQTables;
        } else if ((jparam != null) && (jparam.areTablesSet())) {
            qTables = jparam.getQTables();
        } else {
            qTables = JPEG.getDefaultQTables();
        }
    }
    // If we are optimizing, we don't want any tables.
    if (optimizeHuffman == false) {
        // If they were for progressive scans, we can't use them.
        if ((dht != null) && (metadataProgressive == false)) {
            DCHuffmanTables = collectHTablesFromMetadata(metadata, true);
            ACHuffmanTables = collectHTablesFromMetadata(metadata, false);
        } else if (streamDCHuffmanTables != null) {
            DCHuffmanTables = streamDCHuffmanTables;
            ACHuffmanTables = streamACHuffmanTables;
        } else if ((jparam != null) && (jparam.areTablesSet())) {
            DCHuffmanTables = jparam.getDCHuffmanTables();
            ACHuffmanTables = jparam.getACHuffmanTables();
        } else {
            DCHuffmanTables = JPEG.getDefaultHuffmanTables(true);
            ACHuffmanTables = JPEG.getDefaultHuffmanTables(false);
        }
    }
    // By default, ids are 1 - N, no subsampling
    int[] componentIds = new int[numBandsUsed];
    int[] HsamplingFactors = new int[numBandsUsed];
    int[] VsamplingFactors = new int[numBandsUsed];
    int[] QtableSelectors = new int[numBandsUsed];
    for (int i = 0; i < numBandsUsed; i++) {
        // JFIF compatible
        componentIds[i] = i + 1;
        HsamplingFactors[i] = 1;
        VsamplingFactors[i] = 1;
        QtableSelectors[i] = 0;
    }
    // Now override them with the contents of sof, if there is one,
    if (sof != null) {
        for (int i = 0; i < numBandsUsed; i++) {
            if (forceJFIF == false) {
                // else use JFIF-compatible default
                componentIds[i] = sof.componentSpecs[i].componentId;
            }
            HsamplingFactors[i] = sof.componentSpecs[i].HsamplingFactor;
            VsamplingFactors[i] = sof.componentSpecs[i].VsamplingFactor;
            QtableSelectors[i] = sof.componentSpecs[i].QtableSelector;
        }
    }
    sourceXOffset += gridX;
    sourceWidth -= gridX;
    sourceYOffset += gridY;
    sourceHeight -= gridY;
    int destWidth = (sourceWidth + periodX - 1) / periodX;
    int destHeight = (sourceHeight + periodY - 1) / periodY;
    // Create an appropriate 1-line databuffer for writing
    int lineSize = sourceWidth * numBandsUsed;
    DataBufferByte buffer = new DataBufferByte(lineSize);
    // Create a raster from that
    int[] bandOffs = JPEG.bandOffsets[numBandsUsed - 1];
    raster = Raster.createInterleavedRaster(buffer, sourceWidth, 1, lineSize, numBandsUsed, bandOffs, null);
    // Call the writer, who will call back for every scanline
    clearAbortRequest();
    cbLock.lock();
    try {
        processImageStarted(currentImage);
    } finally {
        cbLock.unlock();
    }
    boolean aborted = false;
    if (debug) {
        System.out.println("inCsType: " + inCsType);
        System.out.println("outCsType: " + outCsType);
    }
    // Note that getData disables acceleration on buffer, but it is
    // just a 1-line intermediate data transfer buffer that does not
    // affect the acceleration of the source image.
    aborted = writeImage(structPointer, buffer.getData(), inCsType, outCsType, numBandsUsed, bandSizes, sourceWidth, destWidth, destHeight, periodX, periodY, qTables, writeDQT, DCHuffmanTables, ACHuffmanTables, writeDHT, optimizeHuffman, (progressiveMode != ImageWriteParam.MODE_DISABLED), numScans, scans, componentIds, HsamplingFactors, VsamplingFactors, QtableSelectors, haveMetadata, restartInterval);
    cbLock.lock();
    try {
        if (aborted) {
            processWriteAborted();
        } else {
            processImageComplete();
        }
        ios.flush();
    } finally {
        cbLock.unlock();
    }
    // After a successful write
    currentImage++;
}

Example 39 with IndexColorModel

use of java.awt.image.IndexColorModel in project jdk8u_jdk by JetBrains.

the class ImageTypeProducer method checkColorConversion.

/**
     * Checks the implied color conversion between the stream and
     * the target image, altering the IJG output color space if necessary.
     * If a java color conversion is required, then this sets up
     * <code>convert</code>.
     * If bands are being rearranged at all (either source or destination
     * bands are specified in the param), then the default color
     * conversions are assumed to be correct.
     * Throws an IIOException if there is no conversion available.
     */
private void checkColorConversion(BufferedImage image, ImageReadParam param) throws IIOException {
    // a Raster.
    if (param != null) {
        if ((param.getSourceBands() != null) || (param.getDestinationBands() != null)) {
            // Accept default conversions out of decoder, silently
            return;
        }
    }
    // XXX - We do not currently support any indexed color models,
    // though we could, as IJG will quantize for us.
    // This is a performance and memory-use issue, as
    // users can read RGB and then convert to indexed in Java.
    ColorModel cm = image.getColorModel();
    if (cm instanceof IndexColorModel) {
        throw new IIOException("IndexColorModel not supported");
    }
    // Now check the ColorSpace type against outColorSpaceCode
    // We may want to tweak the default
    ColorSpace cs = cm.getColorSpace();
    int csType = cs.getType();
    convert = null;
    switch(outColorSpaceCode) {
        case // Its gray in the file
        JPEG.JCS_GRAYSCALE:
            if (csType == ColorSpace.TYPE_RGB) {
                // We want RGB
                // IJG can do this for us more efficiently
                setOutColorSpace(structPointer, JPEG.JCS_RGB);
                // Update java state according to changes
                // in the native part of decoder.
                outColorSpaceCode = JPEG.JCS_RGB;
                numComponents = 3;
            } else if (csType != ColorSpace.TYPE_GRAY) {
                throw new IIOException("Incompatible color conversion");
            }
            break;
        case // IJG wants to go to RGB
        JPEG.JCS_RGB:
            if (csType == ColorSpace.TYPE_GRAY) {
                // We want gray
                if (colorSpaceCode == JPEG.JCS_YCbCr) {
                    // If the jpeg space is YCbCr, IJG can do it
                    setOutColorSpace(structPointer, JPEG.JCS_GRAYSCALE);
                    // Update java state according to changes
                    // in the native part of decoder.
                    outColorSpaceCode = JPEG.JCS_GRAYSCALE;
                    numComponents = 1;
                }
            } else if ((iccCS != null) && (cm.getNumComponents() == numComponents) && (cs != iccCS)) {
                // We have an ICC profile but it isn't used in the dest
                // image.  So convert from the profile cs to the target cs
                convert = new ColorConvertOp(iccCS, cs, null);
            // Leave IJG conversion in place; we still need it
            } else if ((iccCS == null) && (!cs.isCS_sRGB()) && (cm.getNumComponents() == numComponents)) {
                // Target isn't sRGB, so convert from sRGB to the target
                convert = new ColorConvertOp(JPEG.JCS.sRGB, cs, null);
            } else if (csType != ColorSpace.TYPE_RGB) {
                throw new IIOException("Incompatible color conversion");
            }
            break;
        case JPEG.JCS_RGBA:
            // No conversions available; image must be RGBA
            if ((csType != ColorSpace.TYPE_RGB) || (cm.getNumComponents() != numComponents)) {
                throw new IIOException("Incompatible color conversion");
            }
            break;
        case JPEG.JCS_YCC:
            {
                ColorSpace YCC = JPEG.JCS.getYCC();
                if (YCC == null) {
                    // We can't do YCC at all
                    throw new IIOException("Incompatible color conversion");
                }
                if ((cs != YCC) && (cm.getNumComponents() == numComponents)) {
                    convert = new ColorConvertOp(YCC, cs, null);
                }
            }
            break;
        case JPEG.JCS_YCCA:
            {
                ColorSpace YCC = JPEG.JCS.getYCC();
                // No conversions available; image must be YCCA
                if (// We can't do YCC at all
                (YCC == null) || (cs != YCC) || (cm.getNumComponents() != numComponents)) {
                    throw new IIOException("Incompatible color conversion");
                }
            }
            break;
        default:
            // Anything else we can't handle at all
            throw new IIOException("Incompatible color conversion");
    }
}

Example 40 with IndexColorModel

use of java.awt.image.IndexColorModel in project jdk8u_jdk by JetBrains.

the class JFIFMarkerSegment method writeThumb.

private void writeThumb(ImageOutputStream ios, BufferedImage thumb, JFIFExtensionMarkerSegment jfxx, int index, boolean onlyOne, JPEGImageWriter writer) throws IOException {
    ColorModel cm = thumb.getColorModel();
    ColorSpace cs = cm.getColorSpace();
    if (cm instanceof IndexColorModel) {
        // So if it's the only one, we need to write the header first
        if (onlyOne) {
            write(ios, writer);
        }
        if ((jfxx == null) || (jfxx.code == THUMB_PALETTE)) {
            // default
            writeJFXXSegment(index, thumb, ios, writer);
        } else {
            // Expand to RGB
            BufferedImage thumbRGB = ((IndexColorModel) cm).convertToIntDiscrete(thumb.getRaster(), false);
            jfxx.setThumbnail(thumbRGB);
            writer.thumbnailStarted(index);
            // Handles clipping if needed
            jfxx.write(ios, writer);
            writer.thumbnailComplete();
        }
    } else if (cs.getType() == ColorSpace.TYPE_RGB) {
        if (jfxx == null) {
            if (onlyOne) {
                // As part of the header
                write(ios, thumb, writer);
            } else {
                // default
                writeJFXXSegment(index, thumb, ios, writer);
            }
        } else {
            // If this is the only one, write the header first
            if (onlyOne) {
                write(ios, writer);
            }
            if (jfxx.code == THUMB_PALETTE) {
                // default
                writeJFXXSegment(index, thumb, ios, writer);
                writer.warningOccurred(JPEGImageWriter.WARNING_NO_RGB_THUMB_AS_INDEXED);
            } else {
                jfxx.setThumbnail(thumb);
                writer.thumbnailStarted(index);
                // Handles clipping if needed
                jfxx.write(ios, writer);
                writer.thumbnailComplete();
            }
        }
    } else if (cs.getType() == ColorSpace.TYPE_GRAY) {
        if (jfxx == null) {
            if (onlyOne) {
                BufferedImage thumbRGB = expandGrayThumb(thumb);
                // As part of the header
                write(ios, thumbRGB, writer);
            } else {
                // default
                writeJFXXSegment(index, thumb, ios, writer);
            }
        } else {
            // If this is the only one, write the header first
            if (onlyOne) {
                write(ios, writer);
            }
            if (jfxx.code == THUMB_RGB) {
                BufferedImage thumbRGB = expandGrayThumb(thumb);
                writeJFXXSegment(index, thumbRGB, ios, writer);
            } else if (jfxx.code == THUMB_JPEG) {
                jfxx.setThumbnail(thumb);
                writer.thumbnailStarted(index);
                // Handles clipping if needed
                jfxx.write(ios, writer);
                writer.thumbnailComplete();
            } else if (jfxx.code == THUMB_PALETTE) {
                // default
                writeJFXXSegment(index, thumb, ios, writer);
                writer.warningOccurred(JPEGImageWriter.WARNING_NO_GRAY_THUMB_AS_INDEXED);
            }
        }
    } else {
        writer.warningOccurred(JPEGImageWriter.WARNING_ILLEGAL_THUMBNAIL);
    }
}