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

Class javax.imageio.stream.ImageInputStream

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

javax.imageio.stream.ImageInputStream.seek()
Sets the current stream position to the desired location. The next read will occur at this location. The bit offset is set to 0.
An IndexOutOfBoundsException will be thrown if pos is smaller than the flushed position (as returned by getflushedPosition).
It is legal to seek past the end of the file; an java.io.EOFException will be thrown only if a read is performed. @param pos a long containing the desired filepointer position. @exception IndexOutOfBoundsException if pos is smallerthan the flushed position. @exception IOException if any other I/O error occurs.


        bs = new ByteArrayInputStream(b);
        i = new MemoryCacheImageInputStream(bs);


        byte[] fullB = new byte[26];
        i.seek(0);
        i.readFully(fullB);
        h.check(Arrays.equals(fullB,
                              new byte[]
            {
              (byte) 0x92, (byte) 0x80, (byte) 0x05, (byte) 0x77,

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            }));


        for (k = 0; k < fullB.length; k++)
          fullB[k] = 0;


        i.seek(0);
        i.readFully(fullB, 5, 13);


        h.check(Arrays.equals(fullB, new byte[]
            {
              (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,

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              (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
              (byte) 0x00, (byte) 0x00
            }));


        char[] fullC = new char[15];
        i.seek(0);
        i.readFully(fullC, 0, 15);


        h.check(Arrays.equals(fullC, new char[]
            {
              (char) 37504, (char) 1399, (char) 44274,

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              (char) 33280, (char) 37504, (char) 1399,
              (char) 44274, (char) 35751, (char) 23760
            }));


        double[] fullD = new double[8];
        i.seek(0);
        i.readFully(fullD, 0, 8);


        h.check(Arrays.equals(fullD, new double[] {
                                -1.4183142849706364E-219,
                                1.2402952421911034E139,

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                                1.2402952421911034E139,
                                -3.154063812740471E-145
                              }));


        float[] fullF = new float[16];
        i.seek(0);
        i.readFully(fullF, 0, 16);


        h.check(Arrays.equals(fullF, new float[] {
                                -8.079283E-28f,
                                -6.893558E-12f,

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                                -1.6229681E-18f,
                                -8.079283E-28f
                              }));


        int[] fullI = new int[16];
        i.seek(0);
        i.readFully(fullI, 0, 16);


        h.check(Arrays.equals(fullI, new int[] {
                                -1837103753,
                                -1393390681,

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                                -1578139136,
                                -1837103753,
                              }));


        long[] fullL = new long[8];
        i.seek(0);
        i.readFully(fullL, 0, 8);


        h.check(Arrays.equals(fullL, new long[] {
                                -7890300535592285273L,
                                6688032430344901361L,

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                                6688032430344901361L,
                                -6778055975199832713L,
                              }));


        short[] fullS = new short[32];
        i.seek(0);
        i.readFully(fullS, 0, 32);


        h.check(Arrays.equals(fullS, new short[] {
                                -28032,
                                1399,

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            stripLength = dir.getField(TIFFImageDecoder.TIFF_STRIP_BYTE_COUNTS).getAsLong(0);
        } finally {
            in.reset();
        }
        
        in.seek(stripOffset);
        InputStream subin = new SubInputStream(ImageUtil.needInputStream(src), stripLength, true);
        if (fillOrder == 2) {
            //Decorate to flip bit order
            subin = new FillOrderChangeInputStream(subin);
        }

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                supported = true; //binary EPS


                binaryHeader = readBinaryFileHeader(in);
                in.reset();
                in.mark(); //Mark start of file again
                in.seek(binaryHeader.psStart);
                
            } else if (magic == 0x53502125L) { //"%!PS" in little endian
                supported = true; //ascii EPS
                in.reset();
                in.mark(); //Mark start of file again

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