Examples of javax.imageio.stream.ImageInputStream.readBits()

Class javax.imageio.stream.ImageInputStream

Examples of javax.imageio.stream.ImageInputStream.readBits()

javax.imageio.stream.ImageInputStream.readBits()
t left one bit to make room accum |= readBit(); } } Note that the result of readBits(32) may thus not be equal to that of readInt() if a reverse network byte order is being used (i.e., getByteOrder() == false).
If the end of the stream is encountered before all the bits have been read, an java.io.EOFException is thrown. @param numBits the number of bits to read, as an intbetween 0 and 64, inclusive. @return the bitstring, as a long with the last bitread stored in the least significant bit. @exception IllegalArgumentException if numBitsis not between 0 and 64, inclusive. @exception java.io.EOFException if the stream reaches the end beforereading all the bits. @exception IOException if an I/O error occurs.

        i.setBitOffset(6);


        exceptionThrown = false;
        try
          {
            i.readBits(-1);
          }
        catch (IllegalArgumentException e)
          {
            exceptionThrown = true;
          }

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        h.check(exceptionThrown);


        exceptionThrown = false;
        try
          {
            i.readBits(65);
          }
        catch (IllegalArgumentException e)
          {
            exceptionThrown = true;
          }

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          {
            exceptionThrown = true;
          }
        h.check(exceptionThrown);


        h.check(i.readBits(59) == 366848453836545810L);


        i.seek(5);
        i.setBitOffset(6);
        h.check(i.readBits(58) == 183424226918272905L);

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        h.check(i.readBits(59) == 366848453836545810L);


        i.seek(5);
        i.setBitOffset(6);
        h.check(i.readBits(58) == 183424226918272905L);


        b = new byte[]
          {
            (byte) 0xa2, (byte) 0xe9, (byte) 0xd7, (byte) 0x34,
            (byte) 0x2a, (byte) 0x83, (byte) 0xe2, (byte) 0x40

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            (byte) 0xa2, (byte) 0xe9, (byte) 0xd7, (byte) 0x34,
            (byte) 0x2a, (byte) 0x83, (byte) 0xe2, (byte) 0x40
          };
        bs = new ByteArrayInputStream(b);
        i = new MemoryCacheImageInputStream(bs);
        h.check(i.readBits(59) == 366848453836545810L);


        b = new byte[]
          {
            (byte) 0xa2, (byte) 0x02
          };

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        long[] res = new long[8];


        i.seek(0);


        h.check(i.readBits(0) == 0);
        i.seek(0);


        for (k = 0; k < 8; k++)
          {
            i.setBitOffset(k);

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        i.seek(0);


        for (k = 0; k < 8; k++)
          {
            i.setBitOffset(k);
            res[k] = i.readBits(8);
            i.seek(0);
          }
        i.seek(0);
        h.check(Arrays.equals(res, new long[] { 162, 68, 136, 16,
                                                32, 64, 128, 1 }));

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                for (int x = 0; x < width; x++)
                {
                    boolean isMasked = true;
                    for (int c = 0; c < numComponents; c++)
                    {
                        int value = (int)iis.readBits(bitsPerComponent);


                        // color key mask requires values before they are decoded
                        if (colorKeyRanges != null)
                        {
                            isMasked &= value >= colorKeyRanges[c * 2] &&

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                        colorKeyMask.getRaster().setDataElements(x, y, alpha);
                    }
                }


                // rows are padded to the nearest byte
                iis.readBits(padding);
            }


            // use the color space to convert the image to RGB
            BufferedImage rgbImage = colorSpace.toRGBImage(raster);

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        ImageInputStream mciis = new MemoryCacheImageInputStream(cosStream.getUnfilteredStream());
        byte flag = (byte) 0;


        try
        {
            flag = (byte) (mciis.readBits(bitsPerFlag) & 3);
        }
        catch (EOFException ex)
        {
            LOG.error(ex);
        }

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