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

Class javax.imageio.stream.ImageInputStream

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

javax.imageio.stream.ImageInputStream.reset()
Returns the stream pointer to its previous position, including the bit offset, at the time of the most recent unmatched call to mark.
Calls to reset without a corresponding call to mark have no effect.
An IOException will be thrown if the previous marked position lies in the discarded portion of the stream. @exception IOException if an I/O error occurs.

            int pos = 0;
            try {
                iis.mark();
                do {
                    if (pos + 2 > length) {
                        iis.reset();
                        iis.mark();
                        pos = 0;
                    }
                    iis.readUnsignedShort();
                    pos += 2;

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                    pos += 2;
                } while (--numReps >= 0);
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                try { iis.reset(); } catch (IOException e) {}
            }
        }
    }


    private static class IISReadInt extends InputStreamTests {

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            int pos = 0;
            try {
                iis.mark();
                do {
                    if (pos + 4 > length) {
                        iis.reset();
                        iis.mark();
                        pos = 0;
                    }
                    iis.readInt();
                    pos += 4;

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                    pos += 4;
                } while (--numReps >= 0);
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                try { iis.reset(); } catch (IOException e) {}
            }
        }
    }


    private static class IISReadUnsignedInt extends InputStreamTests {

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            int pos = 0;
            try {
                iis.mark();
                do {
                    if (pos + 4 > length) {
                        iis.reset();
                        iis.mark();
                        pos = 0;
                    }
                    iis.readUnsignedInt();
                    pos += 4;

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                    pos += 4;
                } while (--numReps >= 0);
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                try { iis.reset(); } catch (IOException e) {}
            }
        }
    }


    private static class IISReadFloat extends InputStreamTests {

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                if (stream != null) {
                    stream.mark();
                }
                canDecode = spi.canDecodeInput(input);
                if (stream != null) {
                    stream.reset();
                }


                return canDecode;
            } catch (IOException e) {
                return false;

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        byte[] signature = new byte[8];
        markable.seek(0);


        int nBytes = markable.read(signature, 0, 8);
        if(nBytes != 8) markable.read(signature, nBytes, 8-nBytes);
        markable.reset();


        // PNG signature: 137 80 78 71 13 10 26 10
        return  (signature[0] & 0xFF) == 137 &&
                (signature[1] & 0xFF) == 80 &&
                (signature[2] & 0xFF) == 78 &&

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            markable.mark();


            byte[] signature = new byte[3];
            markable.seek(0);
            markable.read(signature, 0, 3);
            markable.reset();


            if ((signature[0] & 0xFF) == 0xFF &&
                    (signature[1] & 0xFF) == JPEGConsts.SOI &&
                    (signature[2] & 0xFF) == 0xFF) { // JPEG
                return true;

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                                }
                                iccStream.write(buf);
                            }
                        }
                    } finally {
                        in.reset();
                    }
                    in.skipBytes(reclen);
                    break;
                case APPE: //Adobe-specific (see 5116.DCT_Filter.pdf)
                    in.mark();

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