tif_print.c

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/* $Id: tif_print.c,v 1.35 2006/03/13 07:53:28 dron Exp $ */

/*
 * Copyright (c) 1988-1997 Sam Leffler
 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
 *
 * Permission to use, copy, modify, distribute, and sell this software and 
 * its documentation for any purpose is hereby granted without fee, provided
 * that (i) the above copyright notices and this permission notice appear in
 * all copies of the software and related documentation, and (ii) the names of
 * Sam Leffler and Silicon Graphics may not be used in any advertising or
 * publicity relating to the software without the specific, prior written
 * permission of Sam Leffler and Silicon Graphics.
 * 
 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 
 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 
 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  
 * 
 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 
 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 
 * OF THIS SOFTWARE.
 */

/*
 * TIFF Library.
 *
 * Directory Printing Support
 */
#include "tiffiop.h"
#include <stdio.h>

#include <ctype.h>

static const char *photoNames[] = {
    "min-is-white",             /* PHOTOMETRIC_MINISWHITE */
    "min-is-black",             /* PHOTOMETRIC_MINISBLACK */
    "RGB color",                /* PHOTOMETRIC_RGB */
    "palette color (RGB from colormap)",    /* PHOTOMETRIC_PALETTE */
    "transparency mask",            /* PHOTOMETRIC_MASK */
    "separated",                /* PHOTOMETRIC_SEPARATED */
    "YCbCr",                    /* PHOTOMETRIC_YCBCR */
    "7 (0x7)",
    "CIE L*a*b*",               /* PHOTOMETRIC_CIELAB */
};
#define NPHOTONAMES (sizeof (photoNames) / sizeof (photoNames[0]))

static const char *orientNames[] = {
    "0 (0x0)",
    "row 0 top, col 0 lhs",         /* ORIENTATION_TOPLEFT */
    "row 0 top, col 0 rhs",         /* ORIENTATION_TOPRIGHT */
    "row 0 bottom, col 0 rhs",          /* ORIENTATION_BOTRIGHT */
    "row 0 bottom, col 0 lhs",          /* ORIENTATION_BOTLEFT */
    "row 0 lhs, col 0 top",         /* ORIENTATION_LEFTTOP */
    "row 0 rhs, col 0 top",         /* ORIENTATION_RIGHTTOP */
    "row 0 rhs, col 0 bottom",          /* ORIENTATION_RIGHTBOT */
    "row 0 lhs, col 0 bottom",          /* ORIENTATION_LEFTBOT */
};
#define NORIENTNAMES    (sizeof (orientNames) / sizeof (orientNames[0]))

static void
_TIFFPrintField(FILE* fd, const TIFFFieldInfo *fip,
        uint32 value_count, void *raw_data)
{
    uint32 j;
        
    fprintf(fd, "  %s: ", fip->field_name);

    for(j = 0; j < value_count; j++) {
        if(fip->field_type == TIFF_BYTE)
            fprintf(fd, "%u", ((uint8 *) raw_data)[j]);
        else if(fip->field_type == TIFF_UNDEFINED)
            fprintf(fd, "0x%x",
                (unsigned int) ((unsigned char *) raw_data)[j]);
        else if(fip->field_type == TIFF_SBYTE)
            fprintf(fd, "%d", ((int8 *) raw_data)[j]);
        else if(fip->field_type == TIFF_SHORT)
            fprintf(fd, "%u", ((uint16 *) raw_data)[j]);
        else if(fip->field_type == TIFF_SSHORT)
            fprintf(fd, "%d", ((int16 *) raw_data)[j]);
        else if(fip->field_type == TIFF_LONG)
            fprintf(fd, "%lu",
                (unsigned long)((uint32 *) raw_data)[j]);
        else if(fip->field_type == TIFF_SLONG)
            fprintf(fd, "%ld", (long)((int32 *) raw_data)[j]);
        else if(fip->field_type == TIFF_RATIONAL
            || fip->field_type == TIFF_SRATIONAL
            || fip->field_type == TIFF_FLOAT)
            fprintf(fd, "%f", ((float *) raw_data)[j]);
        else if(fip->field_type == TIFF_IFD)
            fprintf(fd, "0x%ulx", ((uint32 *) raw_data)[j]);
        else if(fip->field_type == TIFF_ASCII) {
            fprintf(fd, "%s", (char *) raw_data);
            break;
        }
        else if(fip->field_type == TIFF_DOUBLE)
            fprintf(fd, "%f", ((double *) raw_data)[j]);
        else if(fip->field_type == TIFF_FLOAT)
            fprintf(fd, "%f", ((float *)raw_data)[j]);
        else {
            fprintf(fd, "<unsupported data type in TIFFPrint>");
            break;
        }

        if(j < value_count - 1)
            fprintf(fd, ",");
    }

    fprintf(fd, "\n");
}

static int
_TIFFPrettyPrintField(TIFF* tif, FILE* fd, ttag_t tag,
              uint32 value_count, void *raw_data)
{
    TIFFDirectory *td = &tif->tif_dir;

    switch (tag)
    {
        case TIFFTAG_INKSET:
            fprintf(fd, "  Ink Set: ");
            switch (*((uint16*)raw_data)) {
                case INKSET_CMYK:
                    fprintf(fd, "CMYK\n");
                    break;
                default:
                    fprintf(fd, "%u (0x%x)\n",
                        *((uint16*)raw_data),
                        *((uint16*)raw_data));
                    break;
            }
            return 1;
        case TIFFTAG_DOTRANGE:
            fprintf(fd, "  Dot Range: %u-%u\n",
                ((uint16*)raw_data)[0], ((uint16*)raw_data)[1]);
            return 1;
        case TIFFTAG_WHITEPOINT:
            fprintf(fd, "  White Point: %g-%g\n",
                ((float *)raw_data)[0], ((float *)raw_data)[1]);            return 1;
        case TIFFTAG_REFERENCEBLACKWHITE:
        {
            uint16 i;

            fprintf(fd, "  Reference Black/White:\n");
            for (i = 0; i < td->td_samplesperpixel; i++)
            fprintf(fd, "    %2d: %5g %5g\n", i,
                ((float *)raw_data)[2*i+0],
                ((float *)raw_data)[2*i+1]);
            return 1;
        }
        case TIFFTAG_XMLPACKET:
        {
            uint32 i;
            
            fprintf(fd, "  XMLPacket (XMP Metadata):\n" );
            for(i = 0; i < value_count; i++)
                fputc(((char *)raw_data)[i], fd);
            fprintf( fd, "\n" );
            return 1;
        }
        case TIFFTAG_RICHTIFFIPTC:
            /*
             * XXX: for some weird reason RichTIFFIPTC tag
             * defined as array of LONG values.
             */
            fprintf(fd,
                "  RichTIFFIPTC Data: <present>, %lu bytes\n",
                (unsigned long) value_count * 4);
            return 1;
        case TIFFTAG_PHOTOSHOP:
            fprintf(fd, "  Photoshop Data: <present>, %lu bytes\n",
                (unsigned long) value_count);
            return 1;
        case TIFFTAG_ICCPROFILE:
            fprintf(fd, "  ICC Profile: <present>, %lu bytes\n",
                (unsigned long) value_count);
            return 1;
        case TIFFTAG_STONITS:
            fprintf(fd,
                "  Sample to Nits conversion factor: %.4e\n",
                *((double*)raw_data));
            return 1;
        }

    return 0;
}

/*
 * Print the contents of the current directory
 * to the specified stdio file stream.
 */
void
TIFFPrintDirectory(TIFF* tif, FILE* fd, long flags)
{
    TIFFDirectory *td = &tif->tif_dir;
    char *sep;
    uint16 i;
    long l, n;

    fprintf(fd, "TIFF Directory at offset 0x%lx (%lu)\n",
        (unsigned long)tif->tif_diroff, (unsigned long)tif->tif_diroff);
    if (TIFFFieldSet(tif,FIELD_SUBFILETYPE)) {
        fprintf(fd, "  Subfile Type:");
        sep = " ";
        if (td->td_subfiletype & FILETYPE_REDUCEDIMAGE) {
            fprintf(fd, "%sreduced-resolution image", sep);
            sep = "/";
        }
        if (td->td_subfiletype & FILETYPE_PAGE) {
            fprintf(fd, "%smulti-page document", sep);
            sep = "/";
        }
        if (td->td_subfiletype & FILETYPE_MASK)
            fprintf(fd, "%stransparency mask", sep);
        fprintf(fd, " (%lu = 0x%lx)\n",
            (long) td->td_subfiletype, (long) td->td_subfiletype);
    }
    if (TIFFFieldSet(tif,FIELD_IMAGEDIMENSIONS)) {
        fprintf(fd, "  Image Width: %lu Image Length: %lu",
            (unsigned long) td->td_imagewidth, (unsigned long) td->td_imagelength);
        if (TIFFFieldSet(tif,FIELD_IMAGEDEPTH))
            fprintf(fd, " Image Depth: %lu",
                (unsigned long) td->td_imagedepth);
        fprintf(fd, "\n");
    }
    if (TIFFFieldSet(tif,FIELD_TILEDIMENSIONS)) {
        fprintf(fd, "  Tile Width: %lu Tile Length: %lu",
            (unsigned long) td->td_tilewidth, (unsigned long) td->td_tilelength);
        if (TIFFFieldSet(tif,FIELD_TILEDEPTH))
            fprintf(fd, " Tile Depth: %lu",
                (unsigned long) td->td_tiledepth);
        fprintf(fd, "\n");
    }
    if (TIFFFieldSet(tif,FIELD_RESOLUTION)) {
        fprintf(fd, "  Resolution: %g, %g",
            td->td_xresolution, td->td_yresolution);
        if (TIFFFieldSet(tif,FIELD_RESOLUTIONUNIT)) {
            switch (td->td_resolutionunit) {
            case RESUNIT_NONE:
                fprintf(fd, " (unitless)");
                break;
            case RESUNIT_INCH:
                fprintf(fd, " pixels/inch");
                break;
            case RESUNIT_CENTIMETER:
                fprintf(fd, " pixels/cm");
                break;
            default:
                fprintf(fd, " (unit %u = 0x%x)",
                    td->td_resolutionunit,
                    td->td_resolutionunit);
                break;
            }
        }
        fprintf(fd, "\n");
    }
    if (TIFFFieldSet(tif,FIELD_POSITION))
        fprintf(fd, "  Position: %g, %g\n",
            td->td_xposition, td->td_yposition);
    if (TIFFFieldSet(tif,FIELD_BITSPERSAMPLE))
        fprintf(fd, "  Bits/Sample: %u\n", td->td_bitspersample);
    if (TIFFFieldSet(tif,FIELD_SAMPLEFORMAT)) {
        fprintf(fd, "  Sample Format: ");
        switch (td->td_sampleformat) {
        case SAMPLEFORMAT_VOID:
            fprintf(fd, "void\n");
            break;
        case SAMPLEFORMAT_INT:
            fprintf(fd, "signed integer\n");
            break;
        case SAMPLEFORMAT_UINT:
            fprintf(fd, "unsigned integer\n");
            break;
        case SAMPLEFORMAT_IEEEFP:
            fprintf(fd, "IEEE floating point\n");
            break;
        case SAMPLEFORMAT_COMPLEXINT:
            fprintf(fd, "complex signed integer\n");
            break;
        case SAMPLEFORMAT_COMPLEXIEEEFP:
            fprintf(fd, "complex IEEE floating point\n");
            break;
        default:
            fprintf(fd, "%u (0x%x)\n",
                td->td_sampleformat, td->td_sampleformat);
            break;
        }
    }
    if (TIFFFieldSet(tif,FIELD_COMPRESSION)) {
        const TIFFCodec* c = TIFFFindCODEC(td->td_compression);
        fprintf(fd, "  Compression Scheme: ");
        if (c)
            fprintf(fd, "%s\n", c->name);
        else
            fprintf(fd, "%u (0x%x)\n",
                td->td_compression, td->td_compression);
    }
    if (TIFFFieldSet(tif,FIELD_PHOTOMETRIC)) {
        fprintf(fd, "  Photometric Interpretation: ");
        if (td->td_photometric < NPHOTONAMES)
            fprintf(fd, "%s\n", photoNames[td->td_photometric]);
        else {
            switch (td->td_photometric) {
            case PHOTOMETRIC_LOGL:
                fprintf(fd, "CIE Log2(L)\n");
                break;
            case PHOTOMETRIC_LOGLUV:
                fprintf(fd, "CIE Log2(L) (u',v')\n");
                break;
            default:
                fprintf(fd, "%u (0x%x)\n",
                    td->td_photometric, td->td_photometric);
                break;
            }
        }
    }
    if (TIFFFieldSet(tif,FIELD_EXTRASAMPLES) && td->td_extrasamples) {
        fprintf(fd, "  Extra Samples: %u<", td->td_extrasamples);
        sep = "";
        for (i = 0; i < td->td_extrasamples; i++) {
            switch (td->td_sampleinfo[i]) {
            case EXTRASAMPLE_UNSPECIFIED:
                fprintf(fd, "%sunspecified", sep);
                break;
            case EXTRASAMPLE_ASSOCALPHA:
                fprintf(fd, "%sassoc-alpha", sep);
                break;
            case EXTRASAMPLE_UNASSALPHA:
                fprintf(fd, "%sunassoc-alpha", sep);
                break;
            default:
                fprintf(fd, "%s%u (0x%x)", sep,
                    td->td_sampleinfo[i], td->td_sampleinfo[i]);
                break;
            }
            sep = ", ";
        }
        fprintf(fd, ">\n");
    }
    if (TIFFFieldSet(tif,FIELD_INKNAMES)) {
        char* cp;
        fprintf(fd, "  Ink Names: ");
        i = td->td_samplesperpixel;
        sep = "";
        for (cp = td->td_inknames; i > 0; cp = strchr(cp,'\0')+1, i--) {
            fputs(sep, fd);
            _TIFFprintAscii(fd, cp);
            sep = ", ";
        }
                fputs("\n", fd);
    }
    if (TIFFFieldSet(tif,FIELD_THRESHHOLDING)) {
        fprintf(fd, "  Thresholding: ");
        switch (td->td_threshholding) {
        case THRESHHOLD_BILEVEL:
            fprintf(fd, "bilevel art scan\n");
            break;
        case THRESHHOLD_HALFTONE:
            fprintf(fd, "halftone or dithered scan\n");
            break;
        case THRESHHOLD_ERRORDIFFUSE:
            fprintf(fd, "error diffused\n");
            break;
        default:
            fprintf(fd, "%u (0x%x)\n",
                td->td_threshholding, td->td_threshholding);
            break;
        }
    }
    if (TIFFFieldSet(tif,FIELD_FILLORDER)) {
        fprintf(fd, "  FillOrder: ");
        switch (td->td_fillorder) {
        case FILLORDER_MSB2LSB:
            fprintf(fd, "msb-to-lsb\n");
            break;
        case FILLORDER_LSB2MSB:
            fprintf(fd, "lsb-to-msb\n");
            break;
        default:
            fprintf(fd, "%u (0x%x)\n",
                td->td_fillorder, td->td_fillorder);
            break;
        }
    }
    if (TIFFFieldSet(tif,FIELD_YCBCRSUBSAMPLING))
        {
            /*
             * For hacky reasons (see tif_jpeg.c - JPEGFixupTestSubsampling),
             * we need to fetch this rather than trust what is in our
             * structures.
             */
            uint16 subsampling[2];

            TIFFGetField( tif, TIFFTAG_YCBCRSUBSAMPLING, 
                          subsampling + 0, subsampling + 1 );
        fprintf(fd, "  YCbCr Subsampling: %u, %u\n",
                        subsampling[0], subsampling[1] );
        }
    if (TIFFFieldSet(tif,FIELD_YCBCRPOSITIONING)) {
        fprintf(fd, "  YCbCr Positioning: ");
        switch (td->td_ycbcrpositioning) {
        case YCBCRPOSITION_CENTERED:
            fprintf(fd, "centered\n");
            break;
        case YCBCRPOSITION_COSITED:
            fprintf(fd, "cosited\n");
            break;
        default:
            fprintf(fd, "%u (0x%x)\n",
                td->td_ycbcrpositioning, td->td_ycbcrpositioning);
            break;
        }
    }
    if (TIFFFieldSet(tif,FIELD_HALFTONEHINTS))
        fprintf(fd, "  Halftone Hints: light %u dark %u\n",
            td->td_halftonehints[0], td->td_halftonehints[1]);
    if (TIFFFieldSet(tif,FIELD_ORIENTATION)) {
        fprintf(fd, "  Orientation: ");
        if (td->td_orientation < NORIENTNAMES)
            fprintf(fd, "%s\n", orientNames[td->td_orientation]);
        else
            fprintf(fd, "%u (0x%x)\n",
                td->td_orientation, td->td_orientation);
    }
    if (TIFFFieldSet(tif,FIELD_SAMPLESPERPIXEL))
        fprintf(fd, "  Samples/Pixel: %u\n", td->td_samplesperpixel);
    if (TIFFFieldSet(tif,FIELD_ROWSPERSTRIP)) {
        fprintf(fd, "  Rows/Strip: ");
        if (td->td_rowsperstrip == (uint32) -1)
            fprintf(fd, "(infinite)\n");
        else
            fprintf(fd, "%lu\n", (unsigned long) td->td_rowsperstrip);
    }
    if (TIFFFieldSet(tif,FIELD_MINSAMPLEVALUE))
        fprintf(fd, "  Min Sample Value: %u\n", td->td_minsamplevalue);
    if (TIFFFieldSet(tif,FIELD_MAXSAMPLEVALUE))
        fprintf(fd, "  Max Sample Value: %u\n", td->td_maxsamplevalue);
    if (TIFFFieldSet(tif,FIELD_SMINSAMPLEVALUE))
        fprintf(fd, "  SMin Sample Value: %g\n",
            td->td_sminsamplevalue);
    if (TIFFFieldSet(tif,FIELD_SMAXSAMPLEVALUE))
        fprintf(fd, "  SMax Sample Value: %g\n",
            td->td_smaxsamplevalue);
    if (TIFFFieldSet(tif,FIELD_PLANARCONFIG)) {
        fprintf(fd, "  Planar Configuration: ");
        switch (td->td_planarconfig) {
        case PLANARCONFIG_CONTIG:
            fprintf(fd, "single image plane\n");
            break;
        case PLANARCONFIG_SEPARATE:
            fprintf(fd, "separate image planes\n");
            break;
        default:
            fprintf(fd, "%u (0x%x)\n",
                td->td_planarconfig, td->td_planarconfig);
            break;
        }
    }
    if (TIFFFieldSet(tif,FIELD_PAGENUMBER))
        fprintf(fd, "  Page Number: %u-%u\n",
            td->td_pagenumber[0], td->td_pagenumber[1]);
    if (TIFFFieldSet(tif,FIELD_COLORMAP)) {
        fprintf(fd, "  Color Map: ");
        if (flags & TIFFPRINT_COLORMAP) {
            fprintf(fd, "\n");
            n = 1L<<td->td_bitspersample;
            for (l = 0; l < n; l++)
                fprintf(fd, "   %5lu: %5u %5u %5u\n",
                    l,
                    td->td_colormap[0][l],
                    td->td_colormap[1][l],
                    td->td_colormap[2][l]);
        } else
            fprintf(fd, "(present)\n");
    }
    if (TIFFFieldSet(tif,FIELD_TRANSFERFUNCTION)) {
        fprintf(fd, "  Transfer Function: ");
        if (flags & TIFFPRINT_CURVES) {
            fprintf(fd, "\n");
            n = 1L<<td->td_bitspersample;
            for (l = 0; l < n; l++) {
                fprintf(fd, "    %2lu: %5u",
                    l, td->td_transferfunction[0][l]);
                for (i = 1; i < td->td_samplesperpixel; i++)
                    fprintf(fd, " %5u",
                        td->td_transferfunction[i][l]);
                fputc('\n', fd);
            }
        } else
            fprintf(fd, "(present)\n");
    }
    if (TIFFFieldSet(tif, FIELD_SUBIFD)) {
        fprintf(fd, "  SubIFD Offsets:");
        for (i = 0; i < td->td_nsubifd; i++)
            fprintf(fd, " %5lu", (long) td->td_subifd[i]);
        fputc('\n', fd);
    }

        /*
        ** Custom tag support.
        */
        {
            int  i;
            short count;

            count = (short) TIFFGetTagListCount(tif);
            for(i = 0; i < count; i++) {
                ttag_t  tag = TIFFGetTagListEntry(tif, i);
                const TIFFFieldInfo *fip;
                uint16 value_count;
                int mem_alloc = 0;
                void *raw_data;

                fip = TIFFFieldWithTag(tif, tag);
                if(fip == NULL)
            continue;

        if(fip->field_passcount) {
            if(TIFFGetField(tif, tag, &value_count, &raw_data) != 1)
                continue;
        } else {
            if (fip->field_readcount == TIFF_VARIABLE
                || fip->field_readcount == TIFF_VARIABLE2)
                value_count = 1;
            else if (fip->field_readcount == TIFF_SPP)
                value_count = td->td_samplesperpixel;
            else
                value_count = fip->field_readcount;
            if ((fip->field_type == TIFF_ASCII
                 || fip->field_readcount == TIFF_VARIABLE
                 || fip->field_readcount == TIFF_VARIABLE2
                 || fip->field_readcount == TIFF_SPP
                 || value_count > 1)
                && fip->field_tag != TIFFTAG_PAGENUMBER
                && fip->field_tag != TIFFTAG_HALFTONEHINTS
                && fip->field_tag != TIFFTAG_YCBCRSUBSAMPLING
                && fip->field_tag != TIFFTAG_DOTRANGE) {
                if(TIFFGetField(tif, tag, &raw_data) != 1)
                    continue;
            } else if (fip->field_tag != TIFFTAG_PAGENUMBER
                   && fip->field_tag != TIFFTAG_HALFTONEHINTS
                   && fip->field_tag != TIFFTAG_YCBCRSUBSAMPLING
                   && fip->field_tag != TIFFTAG_DOTRANGE) {
                raw_data = _TIFFmalloc(
                    _TIFFDataSize(fip->field_type)
                    * value_count);
                mem_alloc = 1;
                if(TIFFGetField(tif, tag, raw_data) != 1) {
                    _TIFFfree(raw_data);
                    continue;
                }
            } else {
                /* 
                 * XXX: Should be fixed and removed, see the
                 * notes related to TIFFTAG_PAGENUMBER,
                 * TIFFTAG_HALFTONEHINTS,
                 * TIFFTAG_YCBCRSUBSAMPLING and
                 * TIFFTAG_DOTRANGE tags in tif_dir.c. */
                char *tmp;
                raw_data = _TIFFmalloc(
                    _TIFFDataSize(fip->field_type)
                    * value_count);
                tmp = raw_data;
                mem_alloc = 1;
                if(TIFFGetField(tif, tag, tmp,
                tmp + _TIFFDataSize(fip->field_type)) != 1) {
                    _TIFFfree(raw_data);
                    continue;
                }
            }
        }

        /*
         * Catch the tags which needs to be specially handled and
         * pretty print them. If tag not handled in
         * _TIFFPrettyPrintField() fall down and print it as any other
         * tag.
         */
        if (_TIFFPrettyPrintField(tif, fd, tag, value_count, raw_data)) {
            if(mem_alloc)
                _TIFFfree(raw_data);
            continue;
        }
        else
            _TIFFPrintField(fd, fip, value_count, raw_data);

        if(mem_alloc)
            _TIFFfree(raw_data);
            }
        }
        
    if (tif->tif_tagmethods.printdir)
        (*tif->tif_tagmethods.printdir)(tif, fd, flags);
    if ((flags & TIFFPRINT_STRIPS) &&
        TIFFFieldSet(tif,FIELD_STRIPOFFSETS)) {
        tstrip_t s;

        fprintf(fd, "  %lu %s:\n",
            (long) td->td_nstrips,
            isTiled(tif) ? "Tiles" : "Strips");
        for (s = 0; s < td->td_nstrips; s++)
            fprintf(fd, "    %3lu: [%8lu, %8lu]\n",
                (unsigned long) s,
                (unsigned long) td->td_stripoffset[s],
                (unsigned long) td->td_stripbytecount[s]);
    }
}

void
_TIFFprintAscii(FILE* fd, const char* cp)
{
    for (; *cp != '\0'; cp++) {
        const char* tp;

        if (isprint((int)*cp)) {
            fputc(*cp, fd);
            continue;
        }
        for (tp = "\tt\bb\rr\nn\vv"; *tp; tp++)
            if (*tp++ == *cp)
                break;
        if (*tp)
            fprintf(fd, "\\%c", *tp);
        else
            fprintf(fd, "\\%03o", *cp & 0xff);
    }
}

void
_TIFFprintAsciiTag(FILE* fd, const char* name, const char* value)
{
    fprintf(fd, "  %s: \"", name);
    _TIFFprintAscii(fd, value);
    fprintf(fd, "\"\n");
}

/* vim: set ts=8 sts=8 sw=8 noet: */