tif_print.c

来自「支持各种栅格图像和矢量图像读取的库」· C语言 代码 · 共 640 行 · 第 1/2 页

		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;
                uint32 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: */