* tools/tiffcrop.c: fix various out-of-bounds write vulnerabilities
in heap or stack allocated buffers. Reported as MSVR 35093,
MSVR 35096 and MSVR 35097. Discovered by Axel Souchet and Vishal
Chauhan from the MSRC Vulnerabilities & Mitigations team.
* tools/tiff2pdf.c: fix out-of-bounds write vulnerabilities in
heap allocate buffer in t2p_process_jpeg_strip(). Reported as MSVR
35098. Discovered by Axel Souchet and Vishal Chauhan from the MSRC
Vulnerabilities & Mitigations team.
* libtiff/tif_pixarlog.c: fix out-of-bounds write vulnerabilities
in heap allocated buffers. Reported as MSVR 35094. Discovered by
Axel Souchet and Vishal Chauhan from the MSRC Vulnerabilities &
Mitigations team.
* libtiff/tif_write.c: fix issue in error code path of TIFFFlushData1()
that didn't reset the tif_rawcc and tif_rawcp members. I'm not
completely sure if that could happen in practice outside of the odd
behaviour of t2p_seekproc() of tiff2pdf). The report points that a
better fix could be to check the return value of TIFFFlushData1() in
places where it isn't done currently, but it seems this patch is enough.
Reported as MSVR 35095. Discovered by Axel Souchet & Vishal Chauhan &
Suha Can from the MSRC Vulnerabilities & Mitigations team.
tsize_t t2p_readwrite_pdf_image(T2P* t2p, TIFF* input, TIFF* output){

	tsize_t written=0;
	unsigned char* buffer=NULL;
	unsigned char* samplebuffer=NULL;
	tsize_t bufferoffset=0;
	tsize_t samplebufferoffset=0;
	tsize_t read=0;
	tstrip_t i=0;
	tstrip_t j=0;
	tstrip_t stripcount=0;
	tsize_t stripsize=0;
	tsize_t sepstripcount=0;
	tsize_t sepstripsize=0;
#ifdef OJPEG_SUPPORT
	toff_t inputoffset=0;
	uint16 h_samp=1;
	uint16 v_samp=1;
	uint16 ri=1;
	uint32 rows=0;
#endif /* ifdef OJPEG_SUPPORT */
#ifdef JPEG_SUPPORT
	unsigned char* jpt;
	float* xfloatp;
	uint64* sbc;
	unsigned char* stripbuffer;
	tsize_t striplength=0;
	uint32 max_striplength=0;
#endif /* ifdef JPEG_SUPPORT */

	/* Fail if prior error (in particular, can't trust tiff_datasize) */
	if (t2p->t2p_error != T2P_ERR_OK)
		return(0);

	if(t2p->pdf_transcode == T2P_TRANSCODE_RAW){
#ifdef CCITT_SUPPORT
		if(t2p->pdf_compression == T2P_COMPRESS_G4){
			buffer = (unsigned char*)
				_TIFFmalloc(t2p->tiff_datasize);
			if (buffer == NULL) {
				TIFFError(TIFF2PDF_MODULE, 
                                          "Can't allocate %lu bytes of memory for "
                                          "t2p_readwrite_pdf_image, %s", 
					(unsigned long) t2p->tiff_datasize, 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				return(0);
			}
			TIFFReadRawStrip(input, 0, (tdata_t) buffer,
					 t2p->tiff_datasize);
			if (t2p->tiff_fillorder==FILLORDER_LSB2MSB){
					/*
					 * make sure is lsb-to-msb
					 * bit-endianness fill order
					 */
					TIFFReverseBits(buffer,
							t2p->tiff_datasize);
			}
			t2pWriteFile(output, (tdata_t) buffer,
				      t2p->tiff_datasize);
			_TIFFfree(buffer);
			return(t2p->tiff_datasize);
		}
#endif /* ifdef CCITT_SUPPORT */
#ifdef ZIP_SUPPORT
		if (t2p->pdf_compression == T2P_COMPRESS_ZIP) {
			buffer = (unsigned char*)
				_TIFFmalloc(t2p->tiff_datasize);
			if(buffer == NULL){
				TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
					(unsigned long) t2p->tiff_datasize, 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				return(0);
			}
                        memset(buffer, 0, t2p->tiff_datasize);
			TIFFReadRawStrip(input, 0, (tdata_t) buffer,
					 t2p->tiff_datasize);
			if (t2p->tiff_fillorder==FILLORDER_LSB2MSB) {
					TIFFReverseBits(buffer,
							t2p->tiff_datasize);
			}
			t2pWriteFile(output, (tdata_t) buffer,
				      t2p->tiff_datasize);
			_TIFFfree(buffer);
			return(t2p->tiff_datasize);
		}
#endif /* ifdef ZIP_SUPPORT */
#ifdef OJPEG_SUPPORT
		if(t2p->tiff_compression == COMPRESSION_OJPEG) {

			if(t2p->tiff_dataoffset != 0) {
				buffer = (unsigned char*)
					_TIFFmalloc(t2p->tiff_datasize);
				if(buffer == NULL) {
					TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
						(unsigned long) t2p->tiff_datasize, 
						TIFFFileName(input));
					t2p->t2p_error = T2P_ERR_ERROR;
					return(0);
				}
                                memset(buffer, 0, t2p->tiff_datasize);
				if(t2p->pdf_ojpegiflength==0){
					inputoffset=t2pSeekFile(input, 0,
								 SEEK_CUR);
					t2pSeekFile(input,
						     t2p->tiff_dataoffset,
						     SEEK_SET);
					t2pReadFile(input, (tdata_t) buffer,
						     t2p->tiff_datasize);
					t2pSeekFile(input, inputoffset,
						     SEEK_SET);
					t2pWriteFile(output, (tdata_t) buffer,
						      t2p->tiff_datasize);
					_TIFFfree(buffer);
					return(t2p->tiff_datasize);
				} else {
					inputoffset=t2pSeekFile(input, 0,
								 SEEK_CUR);
					t2pSeekFile(input,
						     t2p->tiff_dataoffset,
						     SEEK_SET);
					bufferoffset = t2pReadFile(input,
						(tdata_t) buffer,
						t2p->pdf_ojpegiflength);
					t2p->pdf_ojpegiflength = 0;
					t2pSeekFile(input, inputoffset,
						     SEEK_SET);
					TIFFGetField(input,
						     TIFFTAG_YCBCRSUBSAMPLING,
						     &h_samp, &v_samp);
					buffer[bufferoffset++]= 0xff;
					buffer[bufferoffset++]= 0xdd;
					buffer[bufferoffset++]= 0x00;
					buffer[bufferoffset++]= 0x04;
					h_samp*=8;
					v_samp*=8;
					ri=(t2p->tiff_width+h_samp-1) / h_samp;
					TIFFGetField(input,
						     TIFFTAG_ROWSPERSTRIP,
						     &rows);
					ri*=(rows+v_samp-1)/v_samp;
					buffer[bufferoffset++]= (ri>>8) & 0xff;
					buffer[bufferoffset++]= ri & 0xff;
					stripcount=TIFFNumberOfStrips(input);
					for(i=0;i<stripcount;i++){
						if(i != 0 ){ 
							buffer[bufferoffset++]=0xff;
							buffer[bufferoffset++]=(0xd0 | ((i-1)%8));
						}
						bufferoffset+=TIFFReadRawStrip(input, 
							i, 
							(tdata_t) &(((unsigned char*)buffer)[bufferoffset]), 
							-1);
					}
					t2pWriteFile(output, (tdata_t) buffer, bufferoffset);
					_TIFFfree(buffer);
					return(bufferoffset);
				}
			} else {
				if(! t2p->pdf_ojpegdata){
					TIFFError(TIFF2PDF_MODULE, 
				"No support for OJPEG image %s with bad tables", 
						TIFFFileName(input));
					t2p->t2p_error = T2P_ERR_ERROR;
					return(0);
				}
				buffer = (unsigned char*)
					_TIFFmalloc(t2p->tiff_datasize);
				if(buffer==NULL){
					TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
						(unsigned long) t2p->tiff_datasize, 
						TIFFFileName(input));
					t2p->t2p_error = T2P_ERR_ERROR;
					return(0);
				}
                                memset(buffer, 0, t2p->tiff_datasize);
				_TIFFmemcpy(buffer, t2p->pdf_ojpegdata, t2p->pdf_ojpegdatalength);
				bufferoffset=t2p->pdf_ojpegdatalength;
				stripcount=TIFFNumberOfStrips(input);
				for(i=0;i<stripcount;i++){
					if(i != 0){
						buffer[bufferoffset++]=0xff;
						buffer[bufferoffset++]=(0xd0 | ((i-1)%8));
					}
					bufferoffset+=TIFFReadRawStrip(input, 
						i, 
						(tdata_t) &(((unsigned char*)buffer)[bufferoffset]), 
						-1);
				}
				if( ! ( (buffer[bufferoffset-1]==0xd9) && (buffer[bufferoffset-2]==0xff) ) ){
						buffer[bufferoffset++]=0xff;
						buffer[bufferoffset++]=0xd9;
				}
				t2pWriteFile(output, (tdata_t) buffer, bufferoffset);
				_TIFFfree(buffer);
				return(bufferoffset);
#if 0
                                /*
                                  This hunk of code removed code is clearly
                                  mis-placed and we are not sure where it
                                  should be (if anywhere)
                                */
				TIFFError(TIFF2PDF_MODULE, 
	"No support for OJPEG image %s with no JPEG File Interchange offset", 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				return(0);
#endif
			}
		}
#endif /* ifdef OJPEG_SUPPORT */
#ifdef JPEG_SUPPORT
		if(t2p->tiff_compression == COMPRESSION_JPEG) {
			uint32 count = 0;
			buffer = (unsigned char*)
				_TIFFmalloc(t2p->tiff_datasize);
			if(buffer==NULL){
				TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
					(unsigned long) t2p->tiff_datasize, 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				return(0);
			}
                        memset(buffer, 0, t2p->tiff_datasize);
			if (TIFFGetField(input, TIFFTAG_JPEGTABLES, &count, &jpt) != 0) {
				if(count > 4) {
					_TIFFmemcpy(buffer, jpt, count);
					bufferoffset += count - 2;
				}
			}
			stripcount=TIFFNumberOfStrips(input);
			TIFFGetField(input, TIFFTAG_STRIPBYTECOUNTS, &sbc);
			for(i=0;i<stripcount;i++){
				if(sbc[i]>max_striplength) max_striplength=sbc[i];
			}
			stripbuffer = (unsigned char*)
				_TIFFmalloc(max_striplength);
			if(stripbuffer==NULL){
				TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %u bytes of memory for t2p_readwrite_pdf_image, %s", 
					max_striplength, 
					TIFFFileName(input));
				_TIFFfree(buffer);
				t2p->t2p_error = T2P_ERR_ERROR;
				return(0);
			}
			for(i=0;i<stripcount;i++){
				striplength=TIFFReadRawStrip(input, i, (tdata_t) stripbuffer, -1);
 				if(!t2p_process_jpeg_strip(
 					stripbuffer, 
 					&striplength, 
					buffer,
                    t2p->tiff_datasize,
 					&bufferoffset, 
 					i, 
 					t2p->tiff_length)){
						TIFFError(TIFF2PDF_MODULE, 
				"Can't process JPEG data in input file %s", 
							TIFFFileName(input));
						_TIFFfree(samplebuffer);
						_TIFFfree(buffer);
						t2p->t2p_error = T2P_ERR_ERROR;
						return(0);
				}
			}
			buffer[bufferoffset++]=0xff; 
			buffer[bufferoffset++]=0xd9;
			t2pWriteFile(output, (tdata_t) buffer, bufferoffset);
			_TIFFfree(stripbuffer);
			_TIFFfree(buffer);
			return(bufferoffset);
		}
#endif /* ifdef JPEG_SUPPORT */
		(void)0;
	}

	if(t2p->pdf_sample==T2P_SAMPLE_NOTHING){
		buffer = (unsigned char*) _TIFFmalloc(t2p->tiff_datasize);
		if(buffer==NULL){
			TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
				(unsigned long) t2p->tiff_datasize, 
				TIFFFileName(input));
			t2p->t2p_error = T2P_ERR_ERROR;
			return(0);
		}
                memset(buffer, 0, t2p->tiff_datasize);
		stripsize=TIFFStripSize(input);
		stripcount=TIFFNumberOfStrips(input);
		for(i=0;i<stripcount;i++){
			read = 
				TIFFReadEncodedStrip(input, 
				i, 
				(tdata_t) &buffer[bufferoffset], 
				TIFFmin(stripsize, t2p->tiff_datasize - bufferoffset));
			if(read==-1){
				TIFFError(TIFF2PDF_MODULE, 
					"Error on decoding strip %u of %s", 
					i, 
					TIFFFileName(input));
				_TIFFfree(buffer);
				t2p->t2p_error=T2P_ERR_ERROR;
				return(0);
			}
			bufferoffset+=read;
		}
	} else {
		if(t2p->pdf_sample & T2P_SAMPLE_PLANAR_SEPARATE_TO_CONTIG){
		
			sepstripsize=TIFFStripSize(input);
			sepstripcount=TIFFNumberOfStrips(input);
		
			stripsize=sepstripsize*t2p->tiff_samplesperpixel;
			stripcount=sepstripcount/t2p->tiff_samplesperpixel;
			
			buffer = (unsigned char*) _TIFFmalloc(t2p->tiff_datasize);
			if(buffer==NULL){
				TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
					(unsigned long) t2p->tiff_datasize, 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				return(0);
			}
                        memset(buffer, 0, t2p->tiff_datasize);
			samplebuffer = (unsigned char*) _TIFFmalloc(stripsize);
			if(samplebuffer==NULL){
				TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
					(unsigned long) t2p->tiff_datasize, 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
                                _TIFFfree(buffer);
				return(0);
			}
			for(i=0;i<stripcount;i++){
				samplebufferoffset=0;
				for(j=0;j<t2p->tiff_samplesperpixel;j++){
					read = 
						TIFFReadEncodedStrip(input, 
							i + j*stripcount, 
							(tdata_t) &(samplebuffer[samplebufferoffset]), 
							TIFFmin(sepstripsize, stripsize - samplebufferoffset));
					if(read==-1){
						TIFFError(TIFF2PDF_MODULE, 
					"Error on decoding strip %u of %s", 
							i + j*stripcount, 
							TIFFFileName(input));
							_TIFFfree(buffer);
						t2p->t2p_error=T2P_ERR_ERROR;
						return(0);
					}
					samplebufferoffset+=read;
				}
				t2p_sample_planar_separate_to_contig(
					t2p,
					&(buffer[bufferoffset]),
					samplebuffer, 
					samplebufferoffset); 
				bufferoffset+=samplebufferoffset;
			}
			_TIFFfree(samplebuffer);
			goto dataready;
		}

		buffer = (unsigned char*) _TIFFmalloc(t2p->tiff_datasize);
		if(buffer==NULL){
			TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
				(unsigned long) t2p->tiff_datasize, 
				TIFFFileName(input));
			t2p->t2p_error = T2P_ERR_ERROR;
			return(0);
		}
                memset(buffer, 0, t2p->tiff_datasize);
		stripsize=TIFFStripSize(input);
		stripcount=TIFFNumberOfStrips(input);
		for(i=0;i<stripcount;i++){
			read = 
				TIFFReadEncodedStrip(input, 
				i, 
				(tdata_t) &buffer[bufferoffset], 
				TIFFmin(stripsize, t2p->tiff_datasize - bufferoffset));
			if(read==-1){
				TIFFError(TIFF2PDF_MODULE, 
					"Error on decoding strip %u of %s", 
					i, 
					TIFFFileName(input));
				_TIFFfree(samplebuffer);
				_TIFFfree(buffer);
				t2p->t2p_error=T2P_ERR_ERROR;
				return(0);
			}
			bufferoffset+=read;
		}

		if(t2p->pdf_sample & T2P_SAMPLE_REALIZE_PALETTE){
			samplebuffer=(unsigned char*)_TIFFrealloc( 
				(tdata_t) buffer, 
				t2p->tiff_datasize * t2p->tiff_samplesperpixel);
			if(samplebuffer==NULL){
				TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
					(unsigned long) t2p->tiff_datasize, 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				_TIFFfree(buffer);
				return(0);
			} else {
				buffer=samplebuffer;
				t2p->tiff_datasize *= t2p->tiff_samplesperpixel;
			}
			t2p_sample_realize_palette(t2p, buffer);
		}

		if(t2p->pdf_sample & T2P_SAMPLE_RGBA_TO_RGB){
			t2p->tiff_datasize=t2p_sample_rgba_to_rgb(
				(tdata_t)buffer, 
				t2p->tiff_width*t2p->tiff_length);
		}

		if(t2p->pdf_sample & T2P_SAMPLE_RGBAA_TO_RGB){
			t2p->tiff_datasize=t2p_sample_rgbaa_to_rgb(
				(tdata_t)buffer, 
				t2p->tiff_width*t2p->tiff_length);
		}

		if(t2p->pdf_sample & T2P_SAMPLE_YCBCR_TO_RGB){
			samplebuffer=(unsigned char*)_TIFFrealloc(
				(tdata_t)buffer, 
				t2p->tiff_width*t2p->tiff_length*4);
			if(samplebuffer==NULL){
				TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
					(unsigned long) t2p->tiff_datasize, 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				_TIFFfree(buffer);
				return(0);
			} else {
				buffer=samplebuffer;
			}
			if(!TIFFReadRGBAImageOriented(
				input, 
				t2p->tiff_width, 
				t2p->tiff_length, 
				(uint32*)buffer, 
				ORIENTATION_TOPLEFT,
				0)){
				TIFFError(TIFF2PDF_MODULE, 
	"Can't use TIFFReadRGBAImageOriented to extract RGB image from %s", 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				return(0);
			}
			t2p->tiff_datasize=t2p_sample_abgr_to_rgb(
				(tdata_t) buffer, 
				t2p->tiff_width*t2p->tiff_length);

		}

		if(t2p->pdf_sample & T2P_SAMPLE_LAB_SIGNED_TO_UNSIGNED){
			t2p->tiff_datasize=t2p_sample_lab_signed_to_unsigned(
				(tdata_t)buffer, 
				t2p->tiff_width*t2p->tiff_length);
		}
	}

dataready:

	t2p_disable(output);
	TIFFSetField(output, TIFFTAG_PHOTOMETRIC, t2p->tiff_photometric);
	TIFFSetField(output, TIFFTAG_BITSPERSAMPLE, t2p->tiff_bitspersample);
	TIFFSetField(output, TIFFTAG_SAMPLESPERPIXEL, t2p->tiff_samplesperpixel);
	TIFFSetField(output, TIFFTAG_IMAGEWIDTH, t2p->tiff_width);
	TIFFSetField(output, TIFFTAG_IMAGELENGTH, t2p->tiff_length);
	TIFFSetField(output, TIFFTAG_ROWSPERSTRIP, t2p->tiff_length);
	TIFFSetField(output, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
	TIFFSetField(output, TIFFTAG_FILLORDER, FILLORDER_MSB2LSB);

	switch(t2p->pdf_compression){
	case T2P_COMPRESS_NONE:
		TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
		break;
#ifdef CCITT_SUPPORT
	case T2P_COMPRESS_G4:
		TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX4);
		break;
#endif /* ifdef CCITT_SUPPORT */
#ifdef JPEG_SUPPORT
	case T2P_COMPRESS_JPEG:
		if(t2p->tiff_photometric==PHOTOMETRIC_YCBCR) {
			uint16 hor = 0, ver = 0;
			if (TIFFGetField(input, TIFFTAG_YCBCRSUBSAMPLING, &hor, &ver) !=0 ) {
				if(hor != 0 && ver != 0){
					TIFFSetField(output, TIFFTAG_YCBCRSUBSAMPLING, hor, ver);
				}
			}
			if(TIFFGetField(input, TIFFTAG_REFERENCEBLACKWHITE, &xfloatp)!=0){
				TIFFSetField(output, TIFFTAG_REFERENCEBLACKWHITE, xfloatp);
			}
		}
		if(TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_JPEG)==0){
			TIFFError(TIFF2PDF_MODULE, 
		"Unable to use JPEG compression for input %s and output %s", 
				TIFFFileName(input),
				TIFFFileName(output));
			_TIFFfree(buffer);
			t2p->t2p_error = T2P_ERR_ERROR;
			return(0);
		}
		TIFFSetField(output, TIFFTAG_JPEGTABLESMODE, 0);

		if(t2p->pdf_colorspace & (T2P_CS_RGB | T2P_CS_LAB)){
			TIFFSetField(output, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_YCBCR);
			if(t2p->tiff_photometric != PHOTOMETRIC_YCBCR){
				TIFFSetField(output, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB);
			} else {
				TIFFSetField(output, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RAW);
			}
		}
		if(t2p->pdf_colorspace & T2P_CS_GRAY){
			(void)0;
		}
		if(t2p->pdf_colorspace & T2P_CS_CMYK){
			(void)0;
		}
		if(t2p->pdf_defaultcompressionquality != 0){
			TIFFSetField(output, 
				TIFFTAG_JPEGQUALITY, 
				t2p->pdf_defaultcompressionquality);
		}
	
		break;
#endif /* ifdef JPEG_SUPPORT */
#ifdef ZIP_SUPPORT
	case T2P_COMPRESS_ZIP:
		TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_DEFLATE);
		if(t2p->pdf_defaultcompressionquality%100 != 0){
			TIFFSetField(output, 
				TIFFTAG_PREDICTOR, 
				t2p->pdf_defaultcompressionquality % 100);
		}
		if(t2p->pdf_defaultcompressionquality/100 != 0){
			TIFFSetField(output, 
				TIFFTAG_ZIPQUALITY, 
				(t2p->pdf_defaultcompressionquality / 100));
		}
		break;
#endif /* ifdef ZIP_SUPPORT */
	default:
		break;
	}

	t2p_enable(output);
	t2p->outputwritten = 0;
#ifdef JPEG_SUPPORT
	if(t2p->pdf_compression == T2P_COMPRESS_JPEG
	   && t2p->tiff_photometric == PHOTOMETRIC_YCBCR){
		bufferoffset = TIFFWriteEncodedStrip(output, (tstrip_t)0,
						     buffer,
						     stripsize * stripcount); 
	} else
#endif /* ifdef JPEG_SUPPORT */
        {
		bufferoffset = TIFFWriteEncodedStrip(output, (tstrip_t)0,
						     buffer,
						     t2p->tiff_datasize); 
	}
	if (buffer != NULL) {
		_TIFFfree(buffer);
		buffer=NULL;
	}

	if (bufferoffset == (tsize_t)-1) {
		TIFFError(TIFF2PDF_MODULE, 
			  "Error writing encoded strip to output PDF %s", 
			  TIFFFileName(output));
		t2p->t2p_error = T2P_ERR_ERROR;
		return(0);
	}
	
	written = t2p->outputwritten;
	return(written);
}

tsize_t t2p_readwrite_pdf_image(T2P* t2p, TIFF* input, TIFF* output){

	tsize_t written=0;
	unsigned char* buffer=NULL;
	unsigned char* samplebuffer=NULL;
	tsize_t bufferoffset=0;
	tsize_t samplebufferoffset=0;
	tsize_t read=0;
	tstrip_t i=0;
	tstrip_t j=0;
	tstrip_t stripcount=0;
	tsize_t stripsize=0;
	tsize_t sepstripcount=0;
	tsize_t sepstripsize=0;
#ifdef OJPEG_SUPPORT
	toff_t inputoffset=0;
	uint16 h_samp=1;
	uint16 v_samp=1;
	uint16 ri=1;
	uint32 rows=0;
#endif /* ifdef OJPEG_SUPPORT */
#ifdef JPEG_SUPPORT
	unsigned char* jpt;
	float* xfloatp;
	uint64* sbc;
	unsigned char* stripbuffer;
	tsize_t striplength=0;
	uint32 max_striplength=0;
#endif /* ifdef JPEG_SUPPORT */

	/* Fail if prior error (in particular, can't trust tiff_datasize) */
	if (t2p->t2p_error != T2P_ERR_OK)
		return(0);

	if(t2p->pdf_transcode == T2P_TRANSCODE_RAW){
#ifdef CCITT_SUPPORT
		if(t2p->pdf_compression == T2P_COMPRESS_G4){
			buffer = (unsigned char*)
				_TIFFmalloc(t2p->tiff_datasize);
			if (buffer == NULL) {
				TIFFError(TIFF2PDF_MODULE, 
                                          "Can't allocate %lu bytes of memory for "
                                          "t2p_readwrite_pdf_image, %s", 
					(unsigned long) t2p->tiff_datasize, 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				return(0);
			}
			TIFFReadRawStrip(input, 0, (tdata_t) buffer,
					 t2p->tiff_datasize);
			if (t2p->tiff_fillorder==FILLORDER_LSB2MSB){
					/*
					 * make sure is lsb-to-msb
					 * bit-endianness fill order
					 */
					TIFFReverseBits(buffer,
							t2p->tiff_datasize);
			}
			t2pWriteFile(output, (tdata_t) buffer,
				      t2p->tiff_datasize);
			_TIFFfree(buffer);
			return(t2p->tiff_datasize);
		}
#endif /* ifdef CCITT_SUPPORT */
#ifdef ZIP_SUPPORT
		if (t2p->pdf_compression == T2P_COMPRESS_ZIP) {
			buffer = (unsigned char*)
				_TIFFmalloc(t2p->tiff_datasize);
			if(buffer == NULL){
				TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
					(unsigned long) t2p->tiff_datasize, 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				return(0);
			}
                        memset(buffer, 0, t2p->tiff_datasize);
			TIFFReadRawStrip(input, 0, (tdata_t) buffer,
					 t2p->tiff_datasize);
			if (t2p->tiff_fillorder==FILLORDER_LSB2MSB) {
					TIFFReverseBits(buffer,
							t2p->tiff_datasize);
			}
			t2pWriteFile(output, (tdata_t) buffer,
				      t2p->tiff_datasize);
			_TIFFfree(buffer);
			return(t2p->tiff_datasize);
		}
#endif /* ifdef ZIP_SUPPORT */
#ifdef OJPEG_SUPPORT
		if(t2p->tiff_compression == COMPRESSION_OJPEG) {

			if(t2p->tiff_dataoffset != 0) {
				buffer = (unsigned char*)
					_TIFFmalloc(t2p->tiff_datasize);
				if(buffer == NULL) {
					TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
						(unsigned long) t2p->tiff_datasize, 
						TIFFFileName(input));
					t2p->t2p_error = T2P_ERR_ERROR;
					return(0);
				}
                                memset(buffer, 0, t2p->tiff_datasize);
				if(t2p->pdf_ojpegiflength==0){
					inputoffset=t2pSeekFile(input, 0,
								 SEEK_CUR);
					t2pSeekFile(input,
						     t2p->tiff_dataoffset,
						     SEEK_SET);
					t2pReadFile(input, (tdata_t) buffer,
						     t2p->tiff_datasize);
					t2pSeekFile(input, inputoffset,
						     SEEK_SET);
					t2pWriteFile(output, (tdata_t) buffer,
						      t2p->tiff_datasize);
					_TIFFfree(buffer);
					return(t2p->tiff_datasize);
				} else {
					inputoffset=t2pSeekFile(input, 0,
								 SEEK_CUR);
					t2pSeekFile(input,
						     t2p->tiff_dataoffset,
						     SEEK_SET);
					bufferoffset = t2pReadFile(input,
						(tdata_t) buffer,
						t2p->pdf_ojpegiflength);
					t2p->pdf_ojpegiflength = 0;
					t2pSeekFile(input, inputoffset,
						     SEEK_SET);
					TIFFGetField(input,
						     TIFFTAG_YCBCRSUBSAMPLING,
						     &h_samp, &v_samp);
					buffer[bufferoffset++]= 0xff;
					buffer[bufferoffset++]= 0xdd;
					buffer[bufferoffset++]= 0x00;
					buffer[bufferoffset++]= 0x04;
					h_samp*=8;
					v_samp*=8;
					ri=(t2p->tiff_width+h_samp-1) / h_samp;
					TIFFGetField(input,
						     TIFFTAG_ROWSPERSTRIP,
						     &rows);
					ri*=(rows+v_samp-1)/v_samp;
					buffer[bufferoffset++]= (ri>>8) & 0xff;
					buffer[bufferoffset++]= ri & 0xff;
					stripcount=TIFFNumberOfStrips(input);
					for(i=0;i<stripcount;i++){
						if(i != 0 ){ 
							buffer[bufferoffset++]=0xff;
							buffer[bufferoffset++]=(0xd0 | ((i-1)%8));
						}
						bufferoffset+=TIFFReadRawStrip(input, 
							i, 
							(tdata_t) &(((unsigned char*)buffer)[bufferoffset]), 
							-1);
					}
					t2pWriteFile(output, (tdata_t) buffer, bufferoffset);
					_TIFFfree(buffer);
					return(bufferoffset);
				}
			} else {
				if(! t2p->pdf_ojpegdata){
					TIFFError(TIFF2PDF_MODULE, 
				"No support for OJPEG image %s with bad tables", 
						TIFFFileName(input));
					t2p->t2p_error = T2P_ERR_ERROR;
					return(0);
				}
				buffer = (unsigned char*)
					_TIFFmalloc(t2p->tiff_datasize);
				if(buffer==NULL){
					TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
						(unsigned long) t2p->tiff_datasize, 
						TIFFFileName(input));
					t2p->t2p_error = T2P_ERR_ERROR;
					return(0);
				}
                                memset(buffer, 0, t2p->tiff_datasize);
				_TIFFmemcpy(buffer, t2p->pdf_ojpegdata, t2p->pdf_ojpegdatalength);
				bufferoffset=t2p->pdf_ojpegdatalength;
				stripcount=TIFFNumberOfStrips(input);
				for(i=0;i<stripcount;i++){
					if(i != 0){
						buffer[bufferoffset++]=0xff;
						buffer[bufferoffset++]=(0xd0 | ((i-1)%8));
					}
					bufferoffset+=TIFFReadRawStrip(input, 
						i, 
						(tdata_t) &(((unsigned char*)buffer)[bufferoffset]), 
						-1);
				}
				if( ! ( (buffer[bufferoffset-1]==0xd9) && (buffer[bufferoffset-2]==0xff) ) ){
						buffer[bufferoffset++]=0xff;
						buffer[bufferoffset++]=0xd9;
				}
				t2pWriteFile(output, (tdata_t) buffer, bufferoffset);
				_TIFFfree(buffer);
				return(bufferoffset);
#if 0
                                /*
                                  This hunk of code removed code is clearly
                                  mis-placed and we are not sure where it
                                  should be (if anywhere)
                                */
				TIFFError(TIFF2PDF_MODULE, 
	"No support for OJPEG image %s with no JPEG File Interchange offset", 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				return(0);
#endif
			}
		}
#endif /* ifdef OJPEG_SUPPORT */
#ifdef JPEG_SUPPORT
		if(t2p->tiff_compression == COMPRESSION_JPEG) {
			uint32 count = 0;
			buffer = (unsigned char*)
				_TIFFmalloc(t2p->tiff_datasize);
			if(buffer==NULL){
				TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
					(unsigned long) t2p->tiff_datasize, 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				return(0);
			}
                        memset(buffer, 0, t2p->tiff_datasize);
			if (TIFFGetField(input, TIFFTAG_JPEGTABLES, &count, &jpt) != 0) {
				if(count > 4) {
					_TIFFmemcpy(buffer, jpt, count);
					bufferoffset += count - 2;
				}
			}
			stripcount=TIFFNumberOfStrips(input);
			TIFFGetField(input, TIFFTAG_STRIPBYTECOUNTS, &sbc);
			for(i=0;i<stripcount;i++){
				if(sbc[i]>max_striplength) max_striplength=sbc[i];
			}
			stripbuffer = (unsigned char*)
				_TIFFmalloc(max_striplength);
			if(stripbuffer==NULL){
				TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %u bytes of memory for t2p_readwrite_pdf_image, %s", 
					max_striplength, 
					TIFFFileName(input));
				_TIFFfree(buffer);
				t2p->t2p_error = T2P_ERR_ERROR;
				return(0);
			}
			for(i=0;i<stripcount;i++){
				striplength=TIFFReadRawStrip(input, i, (tdata_t) stripbuffer, -1);
 				if(!t2p_process_jpeg_strip(
 					stripbuffer, 
 					&striplength, 
					buffer, 
 					&bufferoffset, 
 					i, 
 					t2p->tiff_length)){
						TIFFError(TIFF2PDF_MODULE, 
				"Can't process JPEG data in input file %s", 
							TIFFFileName(input));
						_TIFFfree(samplebuffer);
						_TIFFfree(buffer);
						t2p->t2p_error = T2P_ERR_ERROR;
						return(0);
				}
			}
			buffer[bufferoffset++]=0xff; 
			buffer[bufferoffset++]=0xd9;
			t2pWriteFile(output, (tdata_t) buffer, bufferoffset);
			_TIFFfree(stripbuffer);
			_TIFFfree(buffer);
			return(bufferoffset);
		}
#endif /* ifdef JPEG_SUPPORT */
		(void)0;
	}

	if(t2p->pdf_sample==T2P_SAMPLE_NOTHING){
		buffer = (unsigned char*) _TIFFmalloc(t2p->tiff_datasize);
		if(buffer==NULL){
			TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
				(unsigned long) t2p->tiff_datasize, 
				TIFFFileName(input));
			t2p->t2p_error = T2P_ERR_ERROR;
			return(0);
		}
                memset(buffer, 0, t2p->tiff_datasize);
		stripsize=TIFFStripSize(input);
		stripcount=TIFFNumberOfStrips(input);
		for(i=0;i<stripcount;i++){
			read = 
				TIFFReadEncodedStrip(input, 
				i, 
				(tdata_t) &buffer[bufferoffset], 
				TIFFmin(stripsize, t2p->tiff_datasize - bufferoffset));
			if(read==-1){
				TIFFError(TIFF2PDF_MODULE, 
					"Error on decoding strip %u of %s", 
					i, 
					TIFFFileName(input));
				_TIFFfree(buffer);
				t2p->t2p_error=T2P_ERR_ERROR;
				return(0);
			}
			bufferoffset+=read;
		}
	} else {
		if(t2p->pdf_sample & T2P_SAMPLE_PLANAR_SEPARATE_TO_CONTIG){
		
			sepstripsize=TIFFStripSize(input);
			sepstripcount=TIFFNumberOfStrips(input);
		
			stripsize=sepstripsize*t2p->tiff_samplesperpixel;
			stripcount=sepstripcount/t2p->tiff_samplesperpixel;
			
			buffer = (unsigned char*) _TIFFmalloc(t2p->tiff_datasize);
			if(buffer==NULL){
				TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
					(unsigned long) t2p->tiff_datasize, 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				return(0);
			}
                        memset(buffer, 0, t2p->tiff_datasize);
			samplebuffer = (unsigned char*) _TIFFmalloc(stripsize);
			if(samplebuffer==NULL){
				TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
					(unsigned long) t2p->tiff_datasize, 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
                                _TIFFfree(buffer);
				return(0);
			}
			for(i=0;i<stripcount;i++){
				samplebufferoffset=0;
				for(j=0;j<t2p->tiff_samplesperpixel;j++){
					read = 
						TIFFReadEncodedStrip(input, 
							i + j*stripcount, 
							(tdata_t) &(samplebuffer[samplebufferoffset]), 
							TIFFmin(sepstripsize, stripsize - samplebufferoffset));
					if(read==-1){
						TIFFError(TIFF2PDF_MODULE, 
					"Error on decoding strip %u of %s", 
							i + j*stripcount, 
							TIFFFileName(input));
							_TIFFfree(buffer);
						t2p->t2p_error=T2P_ERR_ERROR;
						return(0);
					}
					samplebufferoffset+=read;
				}
				t2p_sample_planar_separate_to_contig(
					t2p,
					&(buffer[bufferoffset]),
					samplebuffer, 
					samplebufferoffset); 
				bufferoffset+=samplebufferoffset;
			}
			_TIFFfree(samplebuffer);
			goto dataready;
		}

		buffer = (unsigned char*) _TIFFmalloc(t2p->tiff_datasize);
		if(buffer==NULL){
			TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
				(unsigned long) t2p->tiff_datasize, 
				TIFFFileName(input));
			t2p->t2p_error = T2P_ERR_ERROR;
			return(0);
		}
                memset(buffer, 0, t2p->tiff_datasize);
		stripsize=TIFFStripSize(input);
		stripcount=TIFFNumberOfStrips(input);
		for(i=0;i<stripcount;i++){
			read = 
				TIFFReadEncodedStrip(input, 
				i, 
				(tdata_t) &buffer[bufferoffset], 
				TIFFmin(stripsize, t2p->tiff_datasize - bufferoffset));
			if(read==-1){
				TIFFError(TIFF2PDF_MODULE, 
					"Error on decoding strip %u of %s", 
					i, 
					TIFFFileName(input));
				_TIFFfree(samplebuffer);
				_TIFFfree(buffer);
				t2p->t2p_error=T2P_ERR_ERROR;
				return(0);
			}
			bufferoffset+=read;
		}

		if(t2p->pdf_sample & T2P_SAMPLE_REALIZE_PALETTE){
			samplebuffer=(unsigned char*)_TIFFrealloc( 
				(tdata_t) buffer, 
				t2p->tiff_datasize * t2p->tiff_samplesperpixel);
			if(samplebuffer==NULL){
				TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
					(unsigned long) t2p->tiff_datasize, 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				_TIFFfree(buffer);
				return(0);
			} else {
				buffer=samplebuffer;
				t2p->tiff_datasize *= t2p->tiff_samplesperpixel;
			}
			t2p_sample_realize_palette(t2p, buffer);
		}

		if(t2p->pdf_sample & T2P_SAMPLE_RGBA_TO_RGB){
			t2p->tiff_datasize=t2p_sample_rgba_to_rgb(
				(tdata_t)buffer, 
				t2p->tiff_width*t2p->tiff_length);
		}

		if(t2p->pdf_sample & T2P_SAMPLE_RGBAA_TO_RGB){
			t2p->tiff_datasize=t2p_sample_rgbaa_to_rgb(
				(tdata_t)buffer, 
				t2p->tiff_width*t2p->tiff_length);
		}

		if(t2p->pdf_sample & T2P_SAMPLE_YCBCR_TO_RGB){
			samplebuffer=(unsigned char*)_TIFFrealloc(
				(tdata_t)buffer, 
				t2p->tiff_width*t2p->tiff_length*4);
			if(samplebuffer==NULL){
				TIFFError(TIFF2PDF_MODULE, 
	"Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", 
					(unsigned long) t2p->tiff_datasize, 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				_TIFFfree(buffer);
				return(0);
			} else {
				buffer=samplebuffer;
			}
			if(!TIFFReadRGBAImageOriented(
				input, 
				t2p->tiff_width, 
				t2p->tiff_length, 
				(uint32*)buffer, 
				ORIENTATION_TOPLEFT,
				0)){
				TIFFError(TIFF2PDF_MODULE, 
	"Can't use TIFFReadRGBAImageOriented to extract RGB image from %s", 
					TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				return(0);
			}
			t2p->tiff_datasize=t2p_sample_abgr_to_rgb(
				(tdata_t) buffer, 
				t2p->tiff_width*t2p->tiff_length);

		}

		if(t2p->pdf_sample & T2P_SAMPLE_LAB_SIGNED_TO_UNSIGNED){
			t2p->tiff_datasize=t2p_sample_lab_signed_to_unsigned(
				(tdata_t)buffer, 
				t2p->tiff_width*t2p->tiff_length);
		}
	}

dataready:

	t2p_disable(output);
	TIFFSetField(output, TIFFTAG_PHOTOMETRIC, t2p->tiff_photometric);
	TIFFSetField(output, TIFFTAG_BITSPERSAMPLE, t2p->tiff_bitspersample);
	TIFFSetField(output, TIFFTAG_SAMPLESPERPIXEL, t2p->tiff_samplesperpixel);
	TIFFSetField(output, TIFFTAG_IMAGEWIDTH, t2p->tiff_width);
	TIFFSetField(output, TIFFTAG_IMAGELENGTH, t2p->tiff_length);
	TIFFSetField(output, TIFFTAG_ROWSPERSTRIP, t2p->tiff_length);
	TIFFSetField(output, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
	TIFFSetField(output, TIFFTAG_FILLORDER, FILLORDER_MSB2LSB);

	switch(t2p->pdf_compression){
	case T2P_COMPRESS_NONE:
		TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
		break;
#ifdef CCITT_SUPPORT
	case T2P_COMPRESS_G4:
		TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX4);
		break;
#endif /* ifdef CCITT_SUPPORT */
#ifdef JPEG_SUPPORT
	case T2P_COMPRESS_JPEG:
		if(t2p->tiff_photometric==PHOTOMETRIC_YCBCR) {
			uint16 hor = 0, ver = 0;
			if (TIFFGetField(input, TIFFTAG_YCBCRSUBSAMPLING, &hor, &ver) !=0 ) {
				if(hor != 0 && ver != 0){
					TIFFSetField(output, TIFFTAG_YCBCRSUBSAMPLING, hor, ver);
				}
			}
			if(TIFFGetField(input, TIFFTAG_REFERENCEBLACKWHITE, &xfloatp)!=0){
				TIFFSetField(output, TIFFTAG_REFERENCEBLACKWHITE, xfloatp);
			}
		}
		if(TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_JPEG)==0){
			TIFFError(TIFF2PDF_MODULE, 
		"Unable to use JPEG compression for input %s and output %s", 
				TIFFFileName(input),
				TIFFFileName(output));
			_TIFFfree(buffer);
			t2p->t2p_error = T2P_ERR_ERROR;
			return(0);
		}
		TIFFSetField(output, TIFFTAG_JPEGTABLESMODE, 0);

		if(t2p->pdf_colorspace & (T2P_CS_RGB | T2P_CS_LAB)){
			TIFFSetField(output, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_YCBCR);
			if(t2p->tiff_photometric != PHOTOMETRIC_YCBCR){
				TIFFSetField(output, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB);
			} else {
				TIFFSetField(output, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RAW);
			}
		}
		if(t2p->pdf_colorspace & T2P_CS_GRAY){
			(void)0;
		}
		if(t2p->pdf_colorspace & T2P_CS_CMYK){
			(void)0;
		}
		if(t2p->pdf_defaultcompressionquality != 0){
			TIFFSetField(output, 
				TIFFTAG_JPEGQUALITY, 
				t2p->pdf_defaultcompressionquality);
		}
	
		break;
#endif /* ifdef JPEG_SUPPORT */
#ifdef ZIP_SUPPORT
	case T2P_COMPRESS_ZIP:
		TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_DEFLATE);
		if(t2p->pdf_defaultcompressionquality%100 != 0){
			TIFFSetField(output, 
				TIFFTAG_PREDICTOR, 
				t2p->pdf_defaultcompressionquality % 100);
		}
		if(t2p->pdf_defaultcompressionquality/100 != 0){
			TIFFSetField(output, 
				TIFFTAG_ZIPQUALITY, 
				(t2p->pdf_defaultcompressionquality / 100));
		}
		break;
#endif /* ifdef ZIP_SUPPORT */
	default:
		break;
	}

	t2p_enable(output);
	t2p->outputwritten = 0;
#ifdef JPEG_SUPPORT
	if(t2p->pdf_compression == T2P_COMPRESS_JPEG
	   && t2p->tiff_photometric == PHOTOMETRIC_YCBCR){
		bufferoffset = TIFFWriteEncodedStrip(output, (tstrip_t)0,
						     buffer,
						     stripsize * stripcount); 
	} else
#endif /* ifdef JPEG_SUPPORT */
        {
		bufferoffset = TIFFWriteEncodedStrip(output, (tstrip_t)0,
						     buffer,
						     t2p->tiff_datasize); 
	}
	if (buffer != NULL) {
		_TIFFfree(buffer);
		buffer=NULL;
	}

	if (bufferoffset == (tsize_t)-1) {
		TIFFError(TIFF2PDF_MODULE, 
			  "Error writing encoded strip to output PDF %s", 
			  TIFFFileName(output));
		t2p->t2p_error = T2P_ERR_ERROR;
		return(0);
	}
	
	written = t2p->outputwritten;
	return(written);
}
