82     TIFF* in;  in main()  local
108     in = TIFFOpen(argv[optind], "r");  in main()
109     if( in == NULL )  in main()
114 	    TIFFError(TIFFFileName(in),  in main()
119     if (in != NULL) {  in main()
122 	    if (!generateThumbnail(in, out))  in main()
124 	    if (!cpIFD(in, out) || !TIFFWriteDirectory(out))  in main()
126 	} while (TIFFReadDirectory(in));  in main()
127 	(void) TIFFClose(in);  in main()
137     if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v)
139     if (TIFFGetField(in, tag, &v1, &v2)) TIFFSetField(out, tag, v1, v2)
141     if (TIFFGetField(in, tag, &v1, &v2, &v3)) TIFFSetField(out, tag, v1, v2, v3)
143     if (TIFFGetField(in, tag, &v1, &v2, &v3, &v4)) TIFFSetField(out, tag, v1, v2, v3, v4)
146 cpTag(TIFF* in, TIFF* out, uint16 tag, uint16 count, TIFFDataType type)  in cpTag()  argument
208                 TIFFError(TIFFFileName(in),  in cpTag()
275 cpTags(TIFF* in, TIFF* out)  in cpTags()  argument
286 			if( !TIFFGetField(in, TIFFTAG_COMPRESSION, &compression) ||  in cpTags()
293 			if( !TIFFGetField(in, TIFFTAG_COMPRESSION, &compression) ||  in cpTags()
297 		cpTag(in, out, p->tag, p->count, p->type);  in cpTags()
303 cpStrips(TIFF* in, TIFF* out)  in cpStrips()  argument
305     tsize_t bufsize  = TIFFStripSize(in);  in cpStrips()
309 	tstrip_t s, ns = TIFFNumberOfStrips(in);  in cpStrips()
312 	TIFFGetField(in, TIFFTAG_STRIPBYTECOUNTS, &bytecounts);  in cpStrips()
320 	    if (TIFFReadRawStrip(in, s, buf, (tmsize_t)bytecounts[s]) < 0 ||  in cpStrips()
331 	TIFFError(TIFFFileName(in),  in cpStrips()
337 cpTiles(TIFF* in, TIFF* out)  in cpTiles()  argument
339     tsize_t bufsize = TIFFTileSize(in);  in cpTiles()
343 	ttile_t t, nt = TIFFNumberOfTiles(in);  in cpTiles()
346 	TIFFGetField(in, TIFFTAG_TILEBYTECOUNTS, &bytecounts);  in cpTiles()
354 	    if (TIFFReadRawTile(in, t, buf, (tmsize_t)bytecounts[t]) < 0 ||  in cpTiles()
365     TIFFError(TIFFFileName(in),  in cpTiles()
371 cpIFD(TIFF* in, TIFF* out)  in cpIFD()  argument
373     cpTags(in, out);  in cpIFD()
374     if (TIFFIsTiled(in)) {  in cpIFD()
375 	if (!cpTiles(in, out))  in cpIFD()
378 	if (!cpStrips(in, out))  in cpIFD()
595 generateThumbnail(TIFF* in, TIFF* out)  in generateThumbnail()  argument
602     tstrip_t s, ns = TIFFNumberOfStrips(in);  in generateThumbnail()
605     TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &sw);  in generateThumbnail()
606     TIFFGetField(in, TIFFTAG_IMAGELENGTH, &sh);  in generateThumbnail()
607     TIFFGetFieldDefaulted(in, TIFFTAG_BITSPERSAMPLE, &bps);  in generateThumbnail()
608     TIFFGetFieldDefaulted(in, TIFFTAG_SAMPLESPERPIXEL, &spp);  in generateThumbnail()
609     TIFFGetFieldDefaulted(in, TIFFTAG_ROWSPERSTRIP, &rps);  in generateThumbnail()
612     rowsize = TIFFScanlineSize(in);  in generateThumbnail()
619 	    TIFFError(TIFFFileName(in),  in generateThumbnail()
628 	(void) TIFFReadEncodedStrip(in, s, rp, -1);  in generateThumbnail()
631     TIFFGetField(in, TIFFTAG_PHOTOMETRIC, &photometric);  in generateThumbnail()
645     cpTag(in, out, TIFFTAG_SOFTWARE,		(uint16) -1, TIFF_ASCII);  in generateThumbnail()
646     cpTag(in, out, TIFFTAG_IMAGEDESCRIPTION,	(uint16) -1, TIFF_ASCII);  in generateThumbnail()
647     cpTag(in, out, TIFFTAG_DATETIME,		(uint16) -1, TIFF_ASCII);  in generateThumbnail()
648     cpTag(in, out, TIFFTAG_HOSTCOMPUTER,	(uint16) -1, TIFF_ASCII);  in generateThumbnail()