SetDirectory() public method

Sets the directory with specified number as the current directory.
SetDirectory changes the current directory and reads its contents with ReadDirectory.
public SetDirectory ( short number ) : bool
number short The zero-based number of the directory to set as the /// current directory.
return bool
コード例 #1
0
ファイル: T2P.cs プロジェクト: dronab/libtiff.net
        /*
        This function sets the input directory to the directory of a given
        page and determines information about the image.  It checks
        the image characteristics to determine if it is possible to convert
        the image data into a page of PDF output, setting values of the T2P
        struct for this page.  It determines what color space is used in
        the output PDF to represent the image.

        It determines if the image can be converted as raw data without
        requiring transcoding of the image data.
        */
        private void read_tiff_data(Tiff input)
        {
            m_pdf_transcode = t2p_transcode_t.T2P_TRANSCODE_ENCODE;
            m_pdf_sample = t2p_sample_t.T2P_SAMPLE_NOTHING;
            m_pdf_switchdecode = m_pdf_colorspace_invert;

            input.SetDirectory(m_tiff_pages[m_pdf_page].page_directory);

            FieldValue[] result = input.GetField(TiffTag.IMAGEWIDTH);
            m_tiff_width = result[0].ToInt();
            if (m_tiff_width == 0)
            {
                Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE, "No support for {0} with zero width", input.FileName());
                m_error = true;
                return;
            }

            result = input.GetField(TiffTag.IMAGELENGTH);
            m_tiff_length = result[0].ToInt();
            if (m_tiff_length == 0)
            {
                Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE, 
                    "No support for {0} with zero length", input.FileName());
                m_error = true;
                return;
            }

            result = input.GetField(TiffTag.COMPRESSION);
            if (result == null)
            {
                Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE, 
                    "No support for {0} with no compression tag", input.FileName());
                m_error = true;
                return;
            }
            else
                m_tiff_compression = (Compression)result[0].ToInt();

            if (!input.IsCodecConfigured(m_tiff_compression))
            {
                Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE, 
                    "No support for {0} with compression type {1}:  not configured", 
                    input.FileName(), m_tiff_compression);
                m_error = true;
                return;

            }

            result = input.GetFieldDefaulted(TiffTag.BITSPERSAMPLE);
            m_tiff_bitspersample = result[0].ToShort();

            switch (m_tiff_bitspersample)
            {
                case 1:
                case 2:
                case 4:
                case 8:
                    break;
                case 0:
                    Tiff.Warning(Tiff2PdfConstants.TIFF2PDF_MODULE, 
                        "Image {0} has 0 bits per sample, assuming 1", input.FileName());
                    m_tiff_bitspersample = 1;
                    break;
                default:
                    Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE, 
                        "No support for {0} with {1} bits per sample",
                        input.FileName(), m_tiff_bitspersample);
                    m_error = true;
                    return;
            }

            result = input.GetFieldDefaulted(TiffTag.SAMPLESPERPIXEL);
            m_tiff_samplesperpixel = result[0].ToShort();
            if (m_tiff_samplesperpixel > 4)
            {
                Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE, 
                    "No support for {0} with {1} samples per pixel", input.FileName(), m_tiff_samplesperpixel);
                m_error = true;
                return;
            }

            if (m_tiff_samplesperpixel == 0)
            {
                Tiff.Warning(Tiff2PdfConstants.TIFF2PDF_MODULE, 
                    "Image {0} has 0 samples per pixel, assuming 1", input.FileName());
                m_tiff_samplesperpixel = 1;
            }

            result = input.GetField(TiffTag.SAMPLEFORMAT);
            if (result != null)
            {
                SampleFormat f = (SampleFormat)result[0].ToByte();
                switch (f)
                {
                    case 0:
                    case SampleFormat.UINT:
                    case SampleFormat.VOID:
                        break;

                    default:
                        Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE, 
                            "No support for {0} with sample format {1}", input.FileName(), f);
                        m_error = true;
                        return;
                }
            }

            result = input.GetFieldDefaulted(TiffTag.FILLORDER);
            m_tiff_fillorder = (FillOrder)result[0].ToByte();

            result = input.GetField(TiffTag.PHOTOMETRIC);
            if (result == null)
            {
                Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE, 
                    "No support for {0} with no photometric interpretation tag", input.FileName());
                m_error = true;
                return;
            }
            else
                m_tiff_photometric = (Photometric)result[0].ToInt();

            short[] r;
            short[] g;
            short[] b;
            short[] a;
            bool photometric_palette;
            bool photometric_palette_cmyk;

            switch (m_tiff_photometric)
            {
                case Photometric.MINISWHITE:
                case Photometric.MINISBLACK:
                    if (m_tiff_bitspersample == 1)
                    {
                        m_pdf_colorspace = t2p_cs_t.T2P_CS_BILEVEL;
                        if (m_tiff_photometric == Photometric.MINISWHITE)
                            m_pdf_switchdecode ^= true;
                    }
                    else
                    {
                        m_pdf_colorspace = t2p_cs_t.T2P_CS_GRAY;
                        if (m_tiff_photometric == Photometric.MINISWHITE)
                            m_pdf_switchdecode ^= true;
                    }
                    break;
               
                case Photometric.RGB:
                case Photometric.PALETTE:
                    photometric_palette = (m_tiff_photometric == Photometric.PALETTE);
                    if (!photometric_palette)
                    {
                        m_pdf_colorspace = t2p_cs_t.T2P_CS_RGB;
                        if (m_tiff_samplesperpixel == 3)
                            break;

                        result = input.GetField(TiffTag.INDEXED);
                        if (result != null)
                        {
                            if (result[0].ToInt() == 1)
                                photometric_palette = true;
                        }
                    }

                    if (!photometric_palette)
                    {
                        if (m_tiff_samplesperpixel > 3)
                        {
                            if (m_tiff_samplesperpixel == 4)
                            {
                                m_pdf_colorspace = t2p_cs_t.T2P_CS_RGB;

                                result = input.GetField(TiffTag.EXTRASAMPLES);
                                if (result != null && result[0].ToInt() == 1)
                                {
                                    byte[] xuint16p = result[1].ToByteArray();
                                    if ((ExtraSample)xuint16p[0] == ExtraSample.ASSOCALPHA)
                                    {
                                        m_pdf_sample = t2p_sample_t.T2P_SAMPLE_RGBAA_TO_RGB;
                                        break;
                                    }

                                    if ((ExtraSample)xuint16p[0] == ExtraSample.UNASSALPHA)
                                    {
                                        m_pdf_sample = t2p_sample_t.T2P_SAMPLE_RGBA_TO_RGB;
                                        break;
                                    }
                                    
                                    Tiff.Warning(Tiff2PdfConstants.TIFF2PDF_MODULE,
                                        "RGB image {0} has 4 samples per pixel, assuming RGBA", input.FileName());
                                    break;
                                }

                                m_pdf_colorspace = t2p_cs_t.T2P_CS_CMYK;
                                m_pdf_switchdecode ^= true;
                                Tiff.Warning(Tiff2PdfConstants.TIFF2PDF_MODULE, 
                                    "RGB image {0} has 4 samples per pixel, assuming inverse CMYK", input.FileName());
                                break;
                            }
                            else
                            {
                                Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE,
                                    "No support for RGB image {0} with {1} samples per pixel", 
                                    input.FileName(), m_tiff_samplesperpixel);
                                m_error = true;
                                break;
                            }
                        }
                        else
                        {
                            Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE,
                                "No support for RGB image {0} with {1} samples per pixel",
                                input.FileName(), m_tiff_samplesperpixel);
                            m_error = true;
                            break;
                        }
                    }

                    if (photometric_palette)
                    {
                        if (m_tiff_samplesperpixel != 1)
                        {
                            Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE,
                                "No support for palletized image {0} with not one sample per pixel",
                                input.FileName());
                            m_error = true;
                            return;
                        }

                        m_pdf_colorspace = (t2p_cs_t)(t2p_cs_t.T2P_CS_RGB | t2p_cs_t.T2P_CS_PALETTE);
                        m_pdf_palettesize = 0x0001 << m_tiff_bitspersample;

                        result = input.GetField(TiffTag.COLORMAP);
                        if (result == null)
                        {
                            Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE, 
                                "Palletized image {0} has no color map", input.FileName());
                            m_error = true;
                            return;
                        }
                        else
                        {
                            r = result[0].ToShortArray();
                            g = result[1].ToShortArray();
                            b = result[2].ToShortArray();
                        }

                        m_pdf_palette = new byte [m_pdf_palettesize * 3];
                        for (int i = 0; i < m_pdf_palettesize; i++)
                        {
                            m_pdf_palette[i * 3] = (byte)(r[i] >> 8);
                            m_pdf_palette[i * 3 + 1] = (byte)(g[i] >> 8);
                            m_pdf_palette[i * 3 + 2] = (byte)(b[i] >> 8);
                        }

                        m_pdf_palettesize *= 3;
                    }
                    break;

                case Photometric.SEPARATED:
                    photometric_palette_cmyk = false;
                    result = input.GetField(TiffTag.INDEXED);
                    if (result != null)
                    {
                        if (result[0].ToInt() == 1)
                            photometric_palette_cmyk = true;
                    }

                    if (!photometric_palette_cmyk)
                    {
                        result = input.GetField(TiffTag.INKSET);
                        if (result != null)
                        {
                            if ((InkSet)result[0].ToByte() != InkSet.CMYK)
                            {
                                Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE,
                                    "No support for {0} because its inkset is not CMYK", input.FileName());
                                m_error = true;
                                return;
                            }
                        }
                        
                        if (m_tiff_samplesperpixel == 4)
                        {
                            m_pdf_colorspace = t2p_cs_t.T2P_CS_CMYK;
                        }
                        else
                        {
                            Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE,
                                "No support for {0} because it has {1} samples per pixel",
                                input.FileName(), m_tiff_samplesperpixel);
                            m_error = true;
                            return;
                        }
                    }
                    else
                    {
                        if (m_tiff_samplesperpixel != 1)
                        {
                            Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE,
                                "No support for palletized CMYK image {0} with not one sample per pixel",
                                input.FileName());
                            m_error = true;
                            return;
                        }
                        
                        m_pdf_colorspace = (t2p_cs_t)(t2p_cs_t.T2P_CS_CMYK | t2p_cs_t.T2P_CS_PALETTE);
                        m_pdf_palettesize = 0x0001 << m_tiff_bitspersample;
                        
                        result = input.GetField(TiffTag.COLORMAP);
                        if (result == null)
                        {
                            Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE,
                                "Palletized image {0} has no color map", input.FileName());
                            m_error = true;
                            return;
                        }
                        else
                        {
                            r = result[0].ToShortArray();
                            g = result[1].ToShortArray();
                            b = result[2].ToShortArray();
                            a = result[3].ToShortArray();
                        }
                        
                        m_pdf_palette = new byte [m_pdf_palettesize * 4];
                        for (int i = 0; i < m_pdf_palettesize; i++)
                        {
                            m_pdf_palette[i * 4] = (byte)(r[i] >> 8);
                            m_pdf_palette[i * 4 + 1] = (byte)(g[i] >> 8);
                            m_pdf_palette[i * 4 + 2] = (byte)(b[i] >> 8);
                            m_pdf_palette[i * 4 + 3] = (byte)(a[i] >> 8);
                        }

                        m_pdf_palettesize *= 4;
                    }
                    break;
                
                case Photometric.YCBCR:
                    m_pdf_colorspace = t2p_cs_t.T2P_CS_RGB;
                    if (m_tiff_samplesperpixel == 1)
                    {
                        m_pdf_colorspace = t2p_cs_t.T2P_CS_GRAY;
                        m_tiff_photometric = Photometric.MINISBLACK;
                        break;
                    }

                    m_pdf_sample = t2p_sample_t.T2P_SAMPLE_YCBCR_TO_RGB;
                    if (m_pdf_defaultcompression == t2p_compress_t.T2P_COMPRESS_JPEG)
                        m_pdf_sample = t2p_sample_t.T2P_SAMPLE_NOTHING;

                    break;

                case Photometric.CIELAB:
                    m_pdf_labrange[0] = -127;
                    m_pdf_labrange[1] = 127;
                    m_pdf_labrange[2] = -127;
                    m_pdf_labrange[3] = 127;
                    m_pdf_sample = t2p_sample_t.T2P_SAMPLE_LAB_SIGNED_TO_UNSIGNED;
                    m_pdf_colorspace = t2p_cs_t.T2P_CS_LAB;
                    break;

                case Photometric.ICCLAB:
                    m_pdf_labrange[0] = 0;
                    m_pdf_labrange[1] = 255;
                    m_pdf_labrange[2] = 0;
                    m_pdf_labrange[3] = 255;
                    m_pdf_colorspace = t2p_cs_t.T2P_CS_LAB;
                    break;

                case Photometric.ITULAB:
                    m_pdf_labrange[0] = -85;
                    m_pdf_labrange[1] = 85;
                    m_pdf_labrange[2] = -75;
                    m_pdf_labrange[3] = 124;
                    m_pdf_sample = t2p_sample_t.T2P_SAMPLE_LAB_SIGNED_TO_UNSIGNED;
                    m_pdf_colorspace = t2p_cs_t.T2P_CS_LAB;
                    break;

                case Photometric.LOGL:
                case Photometric.LOGLUV:
                    Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE,
                        "No support for {0} with photometric interpretation LogL/LogLuv", input.FileName());
                    m_error = true;
                    return;
                default:
                    Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE,
                        "No support for {0} with photometric interpretation {1}",
                        input.FileName(), m_tiff_photometric);
                    m_error = true;
                    return;
            }

            result = input.GetField(TiffTag.PLANARCONFIG);
            if (result != null)
            {
                m_tiff_planar = (PlanarConfig)result[0].ToShort();
                switch (m_tiff_planar)
                {
                    case 0:
                        Tiff.Warning(Tiff2PdfConstants.TIFF2PDF_MODULE,
                            "Image {0} has planar configuration 0, assuming 1", input.FileName());
                        m_tiff_planar = PlanarConfig.CONTIG;
                        break;

                    case PlanarConfig.CONTIG:
                        break;
                    
                    case PlanarConfig.SEPARATE:
                        m_pdf_sample = t2p_sample_t.T2P_SAMPLE_PLANAR_SEPARATE_TO_CONTIG;
                        if (m_tiff_bitspersample != 8)
                        {
                            Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE,
                                "No support for {0} with separated planar configuration and {1} bits per sample",
                                input.FileName(), m_tiff_bitspersample);
                            m_error = true;
                            return;
                        }
                        break;
                    
                    default:
                        Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE,
                            "No support for {0} with planar configuration {1}",
                            input.FileName(), m_tiff_planar);
                        m_error = true;
                        return;
                }
            }

            result = input.GetFieldDefaulted(TiffTag.ORIENTATION);
            m_tiff_orientation = (Orientation)result[0].ToByte();

            if (m_tiff_orientation > Orientation.LEFTBOT)
            {
                Tiff.Warning(Tiff2PdfConstants.TIFF2PDF_MODULE,
                    "Image {0} has orientation {1}, assuming 0", 
                    input.FileName(), m_tiff_orientation);
                m_tiff_orientation = 0;
            }

            result = input.GetField(TiffTag.XRESOLUTION);
            if (result == null)
                m_tiff_xres = 0.0f;
            else
                m_tiff_xres = result[0].ToFloat();

            result = input.GetField(TiffTag.YRESOLUTION);
            if (result == null)
                m_tiff_yres = 0.0f;
            else
                m_tiff_yres = result[0].ToFloat();

            result = input.GetFieldDefaulted(TiffTag.RESOLUTIONUNIT);
            m_tiff_resunit = (ResUnit)result[0].ToByte();
            if (m_tiff_resunit == ResUnit.CENTIMETER)
            {
                m_tiff_xres *= 2.54F;
                m_tiff_yres *= 2.54F;
            }
            else if (m_tiff_resunit != ResUnit.INCH && m_pdf_centimeters)
            {
                m_tiff_xres *= 2.54F;
                m_tiff_yres *= 2.54F;
            }

            compose_pdf_page();

            m_pdf_transcode = t2p_transcode_t.T2P_TRANSCODE_ENCODE;
            if (!m_pdf_nopassthrough)
            {
                if (m_tiff_compression == Compression.CCITTFAX4)
                {
                    if (input.IsTiled() || (input.NumberOfStrips() == 1))
                    {
                        m_pdf_transcode = t2p_transcode_t.T2P_TRANSCODE_RAW;
                        m_pdf_compression = t2p_compress_t.T2P_COMPRESS_G4;
                    }
                }

                if (m_tiff_compression == Compression.ADOBE_DEFLATE || m_tiff_compression == Compression.DEFLATE)
                {
                    if (input.IsTiled() || (input.NumberOfStrips() == 1))
                    {
                        m_pdf_transcode = t2p_transcode_t.T2P_TRANSCODE_RAW;
                        m_pdf_compression = t2p_compress_t.T2P_COMPRESS_ZIP;
                    }
                }

                if (m_tiff_compression == Compression.JPEG)
                {
                    m_pdf_transcode = t2p_transcode_t.T2P_TRANSCODE_RAW;
                    m_pdf_compression = t2p_compress_t.T2P_COMPRESS_JPEG;
                }
            }

            if (m_pdf_transcode != t2p_transcode_t.T2P_TRANSCODE_RAW)
                m_pdf_compression = m_pdf_defaultcompression;

            if (m_pdf_defaultcompression == t2p_compress_t.T2P_COMPRESS_JPEG)
            {
                if ((m_pdf_colorspace & t2p_cs_t.T2P_CS_PALETTE) != 0)
                {
                    m_pdf_sample = (t2p_sample_t)(m_pdf_sample | t2p_sample_t.T2P_SAMPLE_REALIZE_PALETTE);
                    m_pdf_colorspace = (t2p_cs_t)(m_pdf_colorspace ^ t2p_cs_t.T2P_CS_PALETTE);
                    m_tiff_pages[m_pdf_page].page_extra--;
                }
            }

            if (m_tiff_compression == Compression.JPEG)
            {
                if (m_tiff_planar == PlanarConfig.SEPARATE)
                {
                    Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE,
                        "No support for {0} with JPEG compression and separated planar configuration",
                        input.FileName());
                    m_error = true;
                    return;
                }
            }

            if ((m_pdf_sample & t2p_sample_t.T2P_SAMPLE_REALIZE_PALETTE) != 0)
            {
                if ((m_pdf_colorspace & t2p_cs_t.T2P_CS_CMYK) != 0)
                {
                    m_tiff_samplesperpixel = 4;
                    m_tiff_photometric = Photometric.SEPARATED;
                }
                else
                {
                    m_tiff_samplesperpixel = 3;
                    m_tiff_photometric = Photometric.RGB;
                }
            }

            result = input.GetField(TiffTag.TRANSFERFUNCTION);
            if (result != null)
            {
                m_tiff_transferfunction[0] = result[0].GetBytes();
                m_tiff_transferfunction[1] = result[1].GetBytes();
                m_tiff_transferfunction[2] = result[2].GetBytes();

                if (m_tiff_transferfunction[1] != m_tiff_transferfunction[0])
                    m_tiff_transferfunctioncount = 3;
                else
                    m_tiff_transferfunctioncount = 1;
            }
            else
            {
                m_tiff_transferfunctioncount = 0;
            }

            result = input.GetField(TiffTag.WHITEPOINT);
            if (result != null)
            {
                float[] xfloatp = result[0].ToFloatArray();
                m_tiff_whitechromaticities[0] = xfloatp[0];
                m_tiff_whitechromaticities[1] = xfloatp[1];
                
                if ((m_pdf_colorspace & t2p_cs_t.T2P_CS_GRAY) != 0)
                    m_pdf_colorspace = (t2p_cs_t)(m_pdf_colorspace | t2p_cs_t.T2P_CS_CALGRAY);

                if ((m_pdf_colorspace & t2p_cs_t.T2P_CS_RGB) != 0)
                    m_pdf_colorspace = (t2p_cs_t)(m_pdf_colorspace | t2p_cs_t.T2P_CS_CALRGB);
            }
            
            result = input.GetField(TiffTag.PRIMARYCHROMATICITIES);
            if (result != null)
            {
                float[] xfloatp = result[0].ToFloatArray();
                m_tiff_primarychromaticities[0] = xfloatp[0];
                m_tiff_primarychromaticities[1] = xfloatp[1];
                m_tiff_primarychromaticities[2] = xfloatp[2];
                m_tiff_primarychromaticities[3] = xfloatp[3];
                m_tiff_primarychromaticities[4] = xfloatp[4];
                m_tiff_primarychromaticities[5] = xfloatp[5];

                if ((m_pdf_colorspace & t2p_cs_t.T2P_CS_RGB) != 0)
                    m_pdf_colorspace = (t2p_cs_t)(m_pdf_colorspace | t2p_cs_t.T2P_CS_CALRGB);
            }

            if ((m_pdf_colorspace & t2p_cs_t.T2P_CS_LAB) != 0)
            {
                result = input.GetField(TiffTag.WHITEPOINT);
                if (result != null)
                {
                    float[] xfloatp = result[0].ToFloatArray();
                    m_tiff_whitechromaticities[0] = xfloatp[0];
                    m_tiff_whitechromaticities[1] = xfloatp[1];
                }
                else
                {
                    m_tiff_whitechromaticities[0] = 0.3457F; /* 0.3127F; */
                    m_tiff_whitechromaticities[1] = 0.3585F; /* 0.3290F; */
                }
            }

            result = input.GetField(TiffTag.ICCPROFILE);
            if (result != null)
            {
                m_tiff_iccprofilelength = result[0].ToInt();
                m_tiff_iccprofile = result[1].ToByteArray();
                m_pdf_colorspace = (t2p_cs_t)(m_pdf_colorspace | t2p_cs_t.T2P_CS_ICCBASED);
            }
            else
            {
                m_tiff_iccprofilelength = 0;
                m_tiff_iccprofile = null;
            }

            if (m_tiff_bitspersample == 1 && m_tiff_samplesperpixel == 1)
                m_pdf_compression = t2p_compress_t.T2P_COMPRESS_G4;
        }
コード例 #2
0
ファイル: T2P.cs プロジェクト: dronab/libtiff.net
        /*
        This function scans the input TIFF file for pages.  It attempts
        to determine which IFD's of the TIFF file contain image document
        pages.  For each, it gathers some information that has to do
        with the output of the PDF document as a whole.  
        */
        private void read_tiff_init(Tiff input)
        {
            short directorycount = input.NumberOfDirectories();
            m_tiff_pages = new T2P_PAGE [directorycount];
            for (int p = 0; p < directorycount; p++)
                m_tiff_pages[p] = new T2P_PAGE();

            FieldValue[] result = null;

            for (short i = 0; i < directorycount; i++)
            {
                int subfiletype = 0;

                if (!input.SetDirectory(i))
                {
                    Tiff.Error(Tiff2PdfConstants.TIFF2PDF_MODULE, 
                        "Can't set directory {0} of input file {1}", i, input.FileName());
                    return;
                }

                result = input.GetField(TiffTag.PAGENUMBER);
                if (result != null)
                {
                    short pagen = result[0].ToShort();
                    short paged = result[1].ToShort();

                    if ((pagen > paged) && (paged != 0))
                        m_tiff_pages[m_tiff_pagecount].page_number = paged;
                    else
                        m_tiff_pages[m_tiff_pagecount].page_number = pagen;
                }
                else
                {
                    result = input.GetField(TiffTag.SUBFILETYPE);
                    if (result != null)
                    {
                        subfiletype = result[0].ToInt();
                        if ((((FileType)subfiletype & FileType.PAGE) == 0) && (subfiletype != 0))
                            continue;
                    }
                    else
                    {
                        result = input.GetField(TiffTag.OSUBFILETYPE);
                        if (result != null)
                        {
                            subfiletype = result[0].ToInt();
                            if (((OFileType)subfiletype != OFileType.IMAGE) && ((OFileType)subfiletype != OFileType.PAGE) && (subfiletype != 0))
                                continue;
                        }
                    }

                    m_tiff_pages[m_tiff_pagecount].page_number = m_tiff_pagecount;
                }

                m_tiff_pages[m_tiff_pagecount].page_directory = i;

                if (input.IsTiled())
                    m_tiff_pages[m_tiff_pagecount].page_tilecount = input.NumberOfTiles();
                
                m_tiff_pagecount++;
            }

            IComparer myComparer = new cmp_t2p_page();
            Array.Sort(m_tiff_pages, myComparer);

            for (short i = 0; i < m_tiff_pagecount; i++)
            {
                m_pdf_xrefcount += 5;
                input.SetDirectory(m_tiff_pages[i].page_directory);

                result = input.GetField(TiffTag.PHOTOMETRIC);
                if ((result != null && ((Photometric)result[0].ToInt() == Photometric.PALETTE)) || input.GetField(TiffTag.INDEXED) != null)
                {
                    m_tiff_pages[i].page_extra++;
                    m_pdf_xrefcount++;
                }

                result = input.GetField(TiffTag.COMPRESSION);
                if (result != null)
                {
                    Compression xuint16 = (Compression)result[0].ToInt();
                    if ((xuint16 == Compression.DEFLATE || xuint16 == Compression.ADOBE_DEFLATE) 
                        && ((m_tiff_pages[i].page_tilecount != 0) || input.NumberOfStrips() == 1) 
                        && !m_pdf_nopassthrough)
                    {
                        if (m_pdf_minorversion < 2)
                            m_pdf_minorversion = 2;
                    }
                }

                result = input.GetField(TiffTag.TRANSFERFUNCTION);
                if (result != null)
                {
                    m_tiff_transferfunction[0] = result[0].GetBytes();
                    m_tiff_transferfunction[1] = result[1].GetBytes();
                    m_tiff_transferfunction[2] = result[2].GetBytes();

                    if (m_tiff_transferfunction[1] != m_tiff_transferfunction[0])
                    {
                        m_tiff_transferfunctioncount = 3;
                        m_tiff_pages[i].page_extra += 4;
                        m_pdf_xrefcount += 4;
                    }
                    else
                    {
                        m_tiff_transferfunctioncount = 1;
                        m_tiff_pages[i].page_extra += 2;
                        m_pdf_xrefcount += 2;
                    }

                    if (m_pdf_minorversion < 2)
                        m_pdf_minorversion = 2;
                }
                else
                {
                    m_tiff_transferfunctioncount = 0;
                }

                result = input.GetField(TiffTag.ICCPROFILE);
                if (result != null)
                {
                    m_tiff_iccprofilelength = result[0].ToInt();
                    m_tiff_iccprofile = result[1].ToByteArray();

                    m_tiff_pages[i].page_extra++;
                    m_pdf_xrefcount++;
                    if (m_pdf_minorversion < 3)
                        m_pdf_minorversion = 3;
                }

                //m_tiff_tiles[i].tiles_tilecount = m_tiff_pages[i].page_tilecount;

                result = input.GetField(TiffTag.PLANARCONFIG);
                if (result != null && ((PlanarConfig)result[0].ToShort() == PlanarConfig.SEPARATE))
                {
                    result = input.GetField(TiffTag.SAMPLESPERPIXEL);
                    int xuint16 = result[0].ToInt();
                    m_tiff_pages[i].page_tilecount /= xuint16;
                }

                if (m_tiff_pages[i].page_tilecount > 0)
                {
                    m_pdf_xrefcount += (m_tiff_pages[i].page_tilecount - 1) * 2;
                    result = input.GetField(TiffTag.TILEWIDTH);
                    m_tiff_pages[i].tiles_tilewidth = result[0].ToInt();

                    input.GetField(TiffTag.TILELENGTH);
                    m_tiff_pages[i].tiles_tilelength = result[0].ToInt();

                    m_tiff_pages[i].tiles_tiles = new T2P_TILE[m_tiff_pages[i].page_tilecount];
                    for (int idx = 0; idx < m_tiff_pages[i].page_tilecount; idx++)
                        m_tiff_pages[i].tiles_tiles[idx] = new T2P_TILE();
                }
            }
        }