tif_print.c

一个国人自己实现图像库的程序（有参考价值）

			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");
	}
#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");
}