/* $Header: /cvsroot/VTK/VTK/Utilities/tiff/tif_print.c,v 1.1 2002/01/29 22:38:22 andy 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]))

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

        fprintf(fd, "TIFF Directory at offset 0x%lx\n", tif->tif_diroff);
        td = &tif->tif_dir;
        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",
                    (u_long) td->td_imagewidth, (u_long) td->td_imagelength);
                if (TIFFFieldSet(tif,FIELD_IMAGEDEPTH))
                        fprintf(fd, " Image Depth: %lu",
                            (u_long) td->td_imagedepth);
                fprintf(fd, "\n");
        }

        /* Begin Pixar */
        if (TIFFFieldSet(tif,FIELD_IMAGEFULLWIDTH) ||
            TIFFFieldSet(tif,FIELD_IMAGEFULLLENGTH)) {
          fprintf(fd, "  Pixar Full Image Width: %lu Full Image Length: %lu\n",
                  (u_long) td->td_imagefullwidth,
                  (u_long) td->td_imagefulllength);
        }
        if (TIFFFieldSet(tif,FIELD_TEXTUREFORMAT))
          _TIFFprintAsciiTag(fd, "Texture Format", td->td_textureformat);
        if (TIFFFieldSet(tif,FIELD_WRAPMODES))
          _TIFFprintAsciiTag(fd, "Texture Wrap Modes", td->td_wrapmodes);
        if (TIFFFieldSet(tif,FIELD_FOVCOT))
          fprintf(fd, "  Field of View Cotangent: %g\n", td->td_fovcot);
        if (TIFFFieldSet(tif,FIELD_MATRIX_WORLDTOSCREEN)) {
          typedef float Matrix[4][4];
          Matrix*               m = (Matrix*)td->td_matrixWorldToScreen;
          
          fprintf(fd, "  Matrix NP:\n\t%g %g %g %g\n\t%g %g %g %g\n\t%g %g %g %g\n\t%g %g %g %g\n",
                  (*m)[0][0], (*m)[0][1], (*m)[0][2], (*m)[0][3],
                  (*m)[1][0], (*m)[1][1], (*m)[1][2], (*m)[1][3],
                  (*m)[2][0], (*m)[2][1], (*m)[2][2], (*m)[2][3],
                  (*m)[3][0], (*m)[3][1], (*m)[3][2], (*m)[3][3]);
        }
        if (TIFFFieldSet(tif,FIELD_MATRIX_WORLDTOCAMERA)) {
          typedef float Matrix[4][4];
          Matrix*               m = (Matrix*)td->td_matrixWorldToCamera;
          
          fprintf(fd, "  Matrix Nl:\n\t%g %g %g %g\n\t%g %g %g %g\n\t%g %g %g %g\n\t%g %g %g %g\n",
                  (*m)[0][0], (*m)[0][1], (*m)[0][2], (*m)[0][3],
                  (*m)[1][0], (*m)[1][1], (*m)[1][2], (*m)[1][3],
                  (*m)[2][0], (*m)[2][1], (*m)[2][2], (*m)[2][3],
                  (*m)[3][0], (*m)[3][1], (*m)[3][2], (*m)[3][3]);
        }
        /* End Pixar */
        
        if (TIFFFieldSet(tif,FIELD_TILEDIMENSIONS)) {
                fprintf(fd, "  Tile Width: %lu Tile Length: %lu",
                    (u_long) td->td_tilewidth, (u_long) td->td_tilelength);
                if (TIFFFieldSet(tif,FIELD_TILEDEPTH))
                        fprintf(fd, " Tile Depth: %lu",
                            (u_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_STONITS)) {
                fprintf(fd, "  Sample to Nits conversion factor: %.4e\n",
                                td->td_stonits);
        }
#ifdef CMYK_SUPPORT
        if (TIFFFieldSet(tif,FIELD_INKSET)) {
                fprintf(fd, "  Ink Set: ");
                switch (td->td_inkset) {
                case INKSET_CMYK:
                        fprintf(fd, "CMYK\n");
                        break;
                default:
                        fprintf(fd, "%u (0x%x)\n",
                            td->td_inkset, td->td_inkset);
                        break;
                }
        }
        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--) {
                        fprintf(fd, "%s", sep);
                        _TIFFprintAscii(fd, cp);
                        sep = ", ";
                }
        }
        if (TIFFFieldSet(tif,FIELD_NUMBEROFINKS))
                fprintf(fd, " Number of Inks: %u\n", td->td_ninks);
        if (TIFFFieldSet(tif,FIELD_DOTRANGE))
                fprintf(fd, "  Dot Range: %u-%u\n",
                    td->td_dotrange[0], td->td_dotrange[1]);
        if (TIFFFieldSet(tif,FIELD_TARGETPRINTER))
                _TIFFprintAsciiTag(fd, "Target Printer", td->td_targetprinter);
#endif
        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;
                }
        }
#ifdef YCBCR_SUPPORT
        if (TIFFFieldSet(tif,FIELD_YCBCRSUBSAMPLING))
                fprintf(fd, "  YCbCr Subsampling: %u, %u\n",
                    td->td_ycbcrsubsampling[0], td->td_ycbcrsubsampling[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_YCBCRCOEFFICIENTS))
                fprintf(fd, "  YCbCr Coefficients: %g, %g, %g\n",
                    td->td_ycbcrcoeffs[0],
                    td->td_ycbcrcoeffs[1],
                    td->td_ycbcrcoeffs[2]);
#endif
        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_ARTIST))
                _TIFFprintAsciiTag(fd, "Artist", td->td_artist);
        if (TIFFFieldSet(tif,FIELD_DATETIME))
                _TIFFprintAsciiTag(fd, "Date & Time", td->td_datetime);
        if (TIFFFieldSet(tif,FIELD_HOSTCOMPUTER))
                _TIFFprintAsciiTag(fd, "Host Computer", td->td_hostcomputer);
        if (TIFFFieldSet(tif,FIELD_SOFTWARE))
                _TIFFprintAsciiTag(fd, "Software", td->td_software);
        if (TIFFFieldSet(tif,FIELD_COPYRIGHT))
                _TIFFprintAsciiTag(fd, "Copyright", td->td_copyright);
        if (TIFFFieldSet(tif,FIELD_DOCUMENTNAME))
                _TIFFprintAsciiTag(fd, "Document Name", td->td_documentname);
        if (TIFFFieldSet(tif,FIELD_IMAGEDESCRIPTION))
                _TIFFprintAsciiTag(fd, "Image Description", td->td_imagedescription);
        if (TIFFFieldSet(tif,FIELD_MAKE))
                _TIFFprintAsciiTag(fd, "Make", td->td_make);
        if (TIFFFieldSet(tif,FIELD_MODEL))
                _TIFFprintAsciiTag(fd, "Model", td->td_model);
        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", (u_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_PAGENAME))
                _TIFFprintAsciiTag(fd, "Page Name", td->td_pagename);
        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");
        }
#ifdef COLORIMETRY_SUPPORT
        if (TIFFFieldSet(tif,FIELD_WHITEPOINT))
                fprintf(fd, "  White Point: %g-%g\n",
                    td->td_whitepoint[0], td->td_whitepoint[1]);
        if (TIFFFieldSet(tif,FIELD_PRIMARYCHROMAS))
                fprintf(fd, "  Primary Chromaticities: %g,%g %g,%g %g,%g\n",
                    td->td_primarychromas[0], td->td_primarychromas[1],
                    td->td_primarychromas[2], td->td_primarychromas[3],
                    td->td_primarychromas[4], td->td_primarychromas[5]);
        if (TIFFFieldSet(tif,FIELD_REFBLACKWHITE)) {
                fprintf(fd, "  Reference Black/White:\n");
                for (i = 0; i < td->td_samplesperpixel; i++)
                        fprintf(fd, "    %2d: %5g %5g\n",
                            i,
                            td->td_refblackwhite[2*i+0],
                            td->td_refblackwhite[2*i+1]);
        }
        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 ( 1 )
          {
          int colorchannels;
          colorchannels = td->td_samplesperpixel - td->td_extrasamples;
          fprintf(fd, "  Color Channels: %d\n", colorchannels);
          }

#endif
#ifdef ICC_SUPPORT
        if (TIFFFieldSet(tif,FIELD_ICCPROFILE))
                fprintf(fd, "  ICC Profile: <present>, %lu bytes\n",
                    (u_long) td->td_profileLength);
#endif
#ifdef PHOTOSHOP_SUPPORT
        if (TIFFFieldSet(tif,FIELD_PHOTOSHOP))
                fprintf(fd, "  Photoshop Data: <present>, %lu bytes\n",
                    (u_long) td->td_photoshopLength);
#endif
#ifdef IPTC_SUPPORT
        if (TIFFFieldSet(tif,FIELD_RICHTIFFIPTC))
                fprintf(fd, "  RichTIFFIPTC Data: <present>, %lu bytes\n",
                    (u_long) td->td_richtiffiptcLength);
#endif
#if SUBIFD_SUPPORT
        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);
        }
#endif
        if (tif->tif_printdir)
                (*tif->tif_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",
                            (u_long) s,
                            (u_long) td->td_stripoffset[s],
                            (u_long) td->td_stripbytecount[s]);
        }
}

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

                if (isprint(*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");
}
