Java Code Examples for javax.imageio.stream.ImageInputStream#seek()

The following examples show how to use javax.imageio.stream.ImageInputStream#seek() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: JFIFMarkerSegment.java    From jdk8u60 with GNU General Public License v2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    DataBufferByte buffer = new DataBufferByte(getLength());
    readByteBuffer(iis,
                   buffer.getData(),
                   reader,
                   1.0F,
                   0.0F);
    iis.reset();

    WritableRaster raster =
        Raster.createInterleavedRaster(buffer,
                                       thumbWidth,
                                       thumbHeight,
                                       thumbWidth*3,
                                       3,
                                       new int [] {0, 1, 2},
                                       null);
    ColorModel cm = new ComponentColorModel(JPEG.JCS.sRGB,
                                            false,
                                            false,
                                            ColorModel.OPAQUE,
                                            DataBuffer.TYPE_BYTE);
    return new BufferedImage(cm,
                             raster,
                             false,
                             null);
}
Example 2
Source File: WebPReader.java    From webp-imageio with Apache License 2.0 5 votes vote down vote up 
private void readData() throws IOException {
  if ( fData != null ) {
    return;
  }

  ImageInputStream input = ( ImageInputStream ) getInput();
  long length = input.length();
  if ( length > Integer.MAX_VALUE ) {
    throw new IOException( "Cannot read image of size " + length );
  }

  if ( input.getStreamPosition() != 0L ) {
    if ( isSeekForwardOnly() ) {
      throw new IOException();
    }
    else {
      input.seek( 0 );
    }
  }

  byte[] data;
  if ( length > 0 ) {
    data = new byte[ ( int ) length ];
    input.readFully( data );
  }
  else {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    byte[] buffer = new byte[ 4096 ];
    int bytesRead;
    while ( ( bytesRead = input.read( buffer ) ) != -1 ) {
      out.write( buffer, 0, bytesRead );
    }
    out.close();
    data = out.toByteArray();
  }
  fData = data;
}
Example 3
Source File: JFIFMarkerSegment.java    From jdk8u-dev-jdk with GNU General Public License v2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    // read the palette
    byte [] palette = new byte [PALETTE_SIZE];
    float palettePart = ((float) PALETTE_SIZE) / getLength();
    readByteBuffer(iis,
                   palette,
                   reader,
                   palettePart,
                   0.0F);
    DataBufferByte buffer = new DataBufferByte(thumbWidth*thumbHeight);
    readByteBuffer(iis,
                   buffer.getData(),
                   reader,
                   1.0F-palettePart,
                   palettePart);
    iis.read();
    iis.reset();

    IndexColorModel cm = new IndexColorModel(8,
                                             256,
                                             palette,
                                             0,
                                             false);
    SampleModel sm = cm.createCompatibleSampleModel(thumbWidth,
                                                    thumbHeight);
    WritableRaster raster =
        Raster.createWritableRaster(sm, buffer, null);
    return new BufferedImage(cm,
                             raster,
                             false,
                             null);
}
Example 4
Source File: JFIFMarkerSegment.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    // read the palette
    byte [] palette = new byte [PALETTE_SIZE];
    float palettePart = ((float) PALETTE_SIZE) / getLength();
    readByteBuffer(iis,
                   palette,
                   reader,
                   palettePart,
                   0.0F);
    DataBufferByte buffer = new DataBufferByte(thumbWidth*thumbHeight);
    readByteBuffer(iis,
                   buffer.getData(),
                   reader,
                   1.0F-palettePart,
                   palettePart);
    iis.read();
    iis.reset();

    IndexColorModel cm = new IndexColorModel(8,
                                             256,
                                             palette,
                                             0,
                                             false);
    SampleModel sm = cm.createCompatibleSampleModel(thumbWidth,
                                                    thumbHeight);
    WritableRaster raster =
        Raster.createWritableRaster(sm, buffer, null);
    return new BufferedImage(cm,
                             raster,
                             false,
                             null);
}
Example 5
Source File: JFIFMarkerSegment.java    From openjdk-8 with GNU General Public License v2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    // read the palette
    byte [] palette = new byte [PALETTE_SIZE];
    float palettePart = ((float) PALETTE_SIZE) / getLength();
    readByteBuffer(iis,
                   palette,
                   reader,
                   palettePart,
                   0.0F);
    DataBufferByte buffer = new DataBufferByte(thumbWidth*thumbHeight);
    readByteBuffer(iis,
                   buffer.getData(),
                   reader,
                   1.0F-palettePart,
                   palettePart);
    iis.read();
    iis.reset();

    IndexColorModel cm = new IndexColorModel(8,
                                             256,
                                             palette,
                                             0,
                                             false);
    SampleModel sm = cm.createCompatibleSampleModel(thumbWidth,
                                                    thumbHeight);
    WritableRaster raster =
        Raster.createWritableRaster(sm, buffer, null);
    return new BufferedImage(cm,
                             raster,
                             false,
                             null);
}
Example 6
Source File: JFIFMarkerSegment.java    From jdk8u-jdk with GNU General Public License v2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    JPEGImageReader thumbReader = new JPEGImageReader(null);
    thumbReader.setInput(iis);
    thumbReader.addIIOReadProgressListener
        (new ThumbnailReadListener(reader));
    BufferedImage ret = thumbReader.read(0, null);
    thumbReader.dispose();
    iis.reset();
    return ret;
}
Example 7
Source File: JFIFMarkerSegment.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    DataBufferByte buffer = new DataBufferByte(getLength());
    readByteBuffer(iis,
                   buffer.getData(),
                   reader,
                   1.0F,
                   0.0F);
    iis.reset();

    WritableRaster raster =
        Raster.createInterleavedRaster(buffer,
                                       thumbWidth,
                                       thumbHeight,
                                       thumbWidth*3,
                                       3,
                                       new int [] {0, 1, 2},
                                       null);
    ColorModel cm = new ComponentColorModel(JPEG.JCS.sRGB,
                                            false,
                                            false,
                                            ColorModel.OPAQUE,
                                            DataBuffer.TYPE_BYTE);
    return new BufferedImage(cm,
                             raster,
                             false,
                             null);
}
Example 8
Source File: JFIFMarkerSegment.java    From Bytecoder with Apache License 2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    DataBufferByte buffer = new DataBufferByte(getLength());
    readByteBuffer(iis,
                   buffer.getData(),
                   reader,
                   1.0F,
                   0.0F);
    iis.reset();

    WritableRaster raster =
        Raster.createInterleavedRaster(buffer,
                                       thumbWidth,
                                       thumbHeight,
                                       thumbWidth*3,
                                       3,
                                       new int [] {0, 1, 2},
                                       null);
    ColorModel cm = new ComponentColorModel(JPEG.JCS.sRGB,
                                            false,
                                            false,
                                            ColorModel.OPAQUE,
                                            DataBuffer.TYPE_BYTE);
    return new BufferedImage(cm,
                             raster,
                             false,
                             null);
}
Example 9
Source File: JFIFMarkerSegment.java    From jdk8u60 with GNU General Public License v2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    // read the palette
    byte [] palette = new byte [PALETTE_SIZE];
    float palettePart = ((float) PALETTE_SIZE) / getLength();
    readByteBuffer(iis,
                   palette,
                   reader,
                   palettePart,
                   0.0F);
    DataBufferByte buffer = new DataBufferByte(thumbWidth*thumbHeight);
    readByteBuffer(iis,
                   buffer.getData(),
                   reader,
                   1.0F-palettePart,
                   palettePart);
    iis.read();
    iis.reset();

    IndexColorModel cm = new IndexColorModel(8,
                                             256,
                                             palette,
                                             0,
                                             false);
    SampleModel sm = cm.createCompatibleSampleModel(thumbWidth,
                                                    thumbHeight);
    WritableRaster raster =
        Raster.createWritableRaster(sm, buffer, null);
    return new BufferedImage(cm,
                             raster,
                             false,
                             null);
}
Example 10
Source File: JFIFMarkerSegment.java    From jdk1.8-source-analysis with Apache License 2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    DataBufferByte buffer = new DataBufferByte(getLength());
    readByteBuffer(iis,
                   buffer.getData(),
                   reader,
                   1.0F,
                   0.0F);
    iis.reset();

    WritableRaster raster =
        Raster.createInterleavedRaster(buffer,
                                       thumbWidth,
                                       thumbHeight,
                                       thumbWidth*3,
                                       3,
                                       new int [] {0, 1, 2},
                                       null);
    ColorModel cm = new ComponentColorModel(JPEG.JCS.sRGB,
                                            false,
                                            false,
                                            ColorModel.OPAQUE,
                                            DataBuffer.TYPE_BYTE);
    return new BufferedImage(cm,
                             raster,
                             false,
                             null);
}
Example 11
Source File: JFIFMarkerSegment.java    From jdk8u_jdk with GNU General Public License v2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    JPEGImageReader thumbReader = new JPEGImageReader(null);
    thumbReader.setInput(iis);
    thumbReader.addIIOReadProgressListener
        (new ThumbnailReadListener(reader));
    BufferedImage ret = thumbReader.read(0, null);
    thumbReader.dispose();
    iis.reset();
    return ret;
}
Example 12
Source File: JFIFMarkerSegment.java    From Bytecoder with Apache License 2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    JPEGImageReader thumbReader = new JPEGImageReader(null);
    thumbReader.setInput(iis);
    thumbReader.addIIOReadProgressListener
        (new ThumbnailReadListener(reader));
    BufferedImage ret = thumbReader.read(0, null);
    thumbReader.dispose();
    iis.reset();
    return ret;
}
Example 13
Source File: JFIFMarkerSegment.java    From Bytecoder with Apache License 2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    // read the palette
    byte [] palette = new byte [PALETTE_SIZE];
    float palettePart = ((float) PALETTE_SIZE) / getLength();
    readByteBuffer(iis,
                   palette,
                   reader,
                   palettePart,
                   0.0F);
    DataBufferByte buffer = new DataBufferByte(thumbWidth*thumbHeight);
    readByteBuffer(iis,
                   buffer.getData(),
                   reader,
                   1.0F-palettePart,
                   palettePart);
    iis.read();
    iis.reset();

    IndexColorModel cm = new IndexColorModel(8,
                                             256,
                                             palette,
                                             0,
                                             false);
    SampleModel sm = cm.createCompatibleSampleModel(thumbWidth,
                                                    thumbHeight);
    WritableRaster raster =
        Raster.createWritableRaster(sm, buffer, null);
    return new BufferedImage(cm,
                             raster,
                             false,
                             null);
}
Example 14
Source File: JFIFMarkerSegment.java    From jdk8u-jdk with GNU General Public License v2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    // read the palette
    byte [] palette = new byte [PALETTE_SIZE];
    float palettePart = ((float) PALETTE_SIZE) / getLength();
    readByteBuffer(iis,
                   palette,
                   reader,
                   palettePart,
                   0.0F);
    DataBufferByte buffer = new DataBufferByte(thumbWidth*thumbHeight);
    readByteBuffer(iis,
                   buffer.getData(),
                   reader,
                   1.0F-palettePart,
                   palettePart);
    iis.read();
    iis.reset();

    IndexColorModel cm = new IndexColorModel(8,
                                             256,
                                             palette,
                                             0,
                                             false);
    SampleModel sm = cm.createCompatibleSampleModel(thumbWidth,
                                                    thumbHeight);
    WritableRaster raster =
        Raster.createWritableRaster(sm, buffer, null);
    return new BufferedImage(cm,
                             raster,
                             false,
                             null);
}
Example 15
Source File: JFIFMarkerSegment.java    From dragonwell8_jdk with GNU General Public License v2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    JPEGImageReader thumbReader = new JPEGImageReader(null);
    thumbReader.setInput(iis);
    thumbReader.addIIOReadProgressListener
        (new ThumbnailReadListener(reader));
    BufferedImage ret = thumbReader.read(0, null);
    thumbReader.dispose();
    iis.reset();
    return ret;
}
Example 16
Source File: JFIFMarkerSegment.java    From dragonwell8_jdk with GNU General Public License v2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    // read the palette
    byte [] palette = new byte [PALETTE_SIZE];
    float palettePart = ((float) PALETTE_SIZE) / getLength();
    readByteBuffer(iis,
                   palette,
                   reader,
                   palettePart,
                   0.0F);
    DataBufferByte buffer = new DataBufferByte(thumbWidth*thumbHeight);
    readByteBuffer(iis,
                   buffer.getData(),
                   reader,
                   1.0F-palettePart,
                   palettePart);
    iis.read();
    iis.reset();

    IndexColorModel cm = new IndexColorModel(8,
                                             256,
                                             palette,
                                             0,
                                             false);
    SampleModel sm = cm.createCompatibleSampleModel(thumbWidth,
                                                    thumbHeight);
    WritableRaster raster =
        Raster.createWritableRaster(sm, buffer, null);
    return new BufferedImage(cm,
                             raster,
                             false,
                             null);
}
Example 17
Source File: JFIFMarkerSegment.java    From dragonwell8_jdk with GNU General Public License v2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    DataBufferByte buffer = new DataBufferByte(getLength());
    readByteBuffer(iis,
                   buffer.getData(),
                   reader,
                   1.0F,
                   0.0F);
    iis.reset();

    WritableRaster raster =
        Raster.createInterleavedRaster(buffer,
                                       thumbWidth,
                                       thumbHeight,
                                       thumbWidth*3,
                                       3,
                                       new int [] {0, 1, 2},
                                       null);
    ColorModel cm = new ComponentColorModel(JPEG.JCS.sRGB,
                                            false,
                                            false,
                                            ColorModel.OPAQUE,
                                            DataBuffer.TYPE_BYTE);
    return new BufferedImage(cm,
                             raster,
                             false,
                             null);
}
Example 18
Source File: JFIFMarkerSegment.java    From jdk8u-dev-jdk with GNU General Public License v2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    JPEGImageReader thumbReader = new JPEGImageReader(null);
    thumbReader.setInput(iis);
    thumbReader.addIIOReadProgressListener
        (new ThumbnailReadListener(reader));
    BufferedImage ret = thumbReader.read(0, null);
    thumbReader.dispose();
    iis.reset();
    return ret;
}
Example 19
Source File: JFIFMarkerSegment.java    From jdk1.8-source-analysis with Apache License 2.0 5 votes vote down vote up 
BufferedImage getThumbnail(ImageInputStream iis,
                           JPEGImageReader reader)
    throws IOException {
    iis.mark();
    iis.seek(streamPos);
    // read the palette
    byte [] palette = new byte [PALETTE_SIZE];
    float palettePart = ((float) PALETTE_SIZE) / getLength();
    readByteBuffer(iis,
                   palette,
                   reader,
                   palettePart,
                   0.0F);
    DataBufferByte buffer = new DataBufferByte(thumbWidth*thumbHeight);
    readByteBuffer(iis,
                   buffer.getData(),
                   reader,
                   1.0F-palettePart,
                   palettePart);
    iis.read();
    iis.reset();

    IndexColorModel cm = new IndexColorModel(8,
                                             256,
                                             palette,
                                             0,
                                             false);
    SampleModel sm = cm.createCompatibleSampleModel(thumbWidth,
                                                    thumbHeight);
    WritableRaster raster =
        Raster.createWritableRaster(sm, buffer, null);
    return new BufferedImage(cm,
                             raster,
                             false,
                             null);
}
Example 20
Source File: DCTFilter.java    From gcs with Mozilla Public License 2.0 4 votes vote down vote up 
private int getAdobeTransformByBruteForce(ImageInputStream iis) throws IOException
{
    int a = 0;
    iis.seek(0);
    int by;
    while ((by = iis.read()) != -1)
    {
        if (ADOBE.charAt(a) == by)
        {
            ++a;
            if (a != ADOBE.length())
            {
                continue;
            }
            // match
            a = 0;
            long afterAdobePos = iis.getStreamPosition();
            iis.seek(iis.getStreamPosition() - 9);
            int tag = iis.readUnsignedShort();
            if (tag != 0xFFEE)
            {
                iis.seek(afterAdobePos);
                continue;
            }
            int len = iis.readUnsignedShort();
            if (len >= POS_TRANSFORM + 1)
            {
                byte[] app14 = new byte[Math.max(len, POS_TRANSFORM + 1)];
                if (iis.read(app14) >= POS_TRANSFORM + 1)
                {
                    return app14[POS_TRANSFORM];
                }
            }
        }
        else
        {
            a = 0;
        }
    }
    return 0;
}