* 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.
int t2p_process_ojpeg_tables(T2P* t2p, TIFF* input){
	uint16 proc=0;
	void* q;
	uint32 q_length=0;
	void* dc;
	uint32 dc_length=0;
	void* ac;
	uint32 ac_length=0;
	uint16* lp;
	uint16* pt;
	uint16 h_samp=1;
	uint16 v_samp=1;
	unsigned char* ojpegdata;
	uint16 table_count;
	uint32 offset_table;
	uint32 offset_ms_l;
	uint32 code_count;
	uint32 i=0;
	uint32 dest=0;
	uint16 ri=0;
	uint32 rows=0;
	
	if(!TIFFGetField(input, TIFFTAG_JPEGPROC, &proc)){
		TIFFError(TIFF2PDF_MODULE, 
			"Missing JPEGProc field in OJPEG image %s", 
			TIFFFileName(input));
			t2p->t2p_error = T2P_ERR_ERROR;
		return(0);
	}
	if(proc!=JPEGPROC_BASELINE && proc!=JPEGPROC_LOSSLESS){
		TIFFError(TIFF2PDF_MODULE, 
			"Bad JPEGProc field in OJPEG image %s", 
			TIFFFileName(input));
			t2p->t2p_error = T2P_ERR_ERROR;
		return(0);
	}
	if(!TIFFGetField(input, TIFFTAG_JPEGQTABLES, &q_length, &q)){
		TIFFError(TIFF2PDF_MODULE, 
			"Missing JPEGQTables field in OJPEG image %s", 
			TIFFFileName(input));
			t2p->t2p_error = T2P_ERR_ERROR;
		return(0);
	}
	if(q_length < (64U * t2p->tiff_samplesperpixel)){
		TIFFError(TIFF2PDF_MODULE, 
			"Bad JPEGQTables field in OJPEG image %s", 
			TIFFFileName(input));
			t2p->t2p_error = T2P_ERR_ERROR;
		return(0);
	} 
	if(!TIFFGetField(input, TIFFTAG_JPEGDCTABLES, &dc_length, &dc)){
		TIFFError(TIFF2PDF_MODULE, 
			"Missing JPEGDCTables field in OJPEG image %s", 
			TIFFFileName(input));
			t2p->t2p_error = T2P_ERR_ERROR;
		return(0);
	}
	if(proc==JPEGPROC_BASELINE){
		if(!TIFFGetField(input, TIFFTAG_JPEGACTABLES, &ac_length, &ac)){
			TIFFError(TIFF2PDF_MODULE, 
				"Missing JPEGACTables field in OJPEG image %s", 
				TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
			return(0);
		}
	} else {
		if(!TIFFGetField(input, TIFFTAG_JPEGLOSSLESSPREDICTORS, &lp)){
			TIFFError(TIFF2PDF_MODULE, 
				"Missing JPEGLosslessPredictors field in OJPEG image %s", 
				TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				return(0);
		}
		if(!TIFFGetField(input, TIFFTAG_JPEGPOINTTRANSFORM, &pt)){
			TIFFError(TIFF2PDF_MODULE, 
				"Missing JPEGPointTransform field in OJPEG image %s", 
				TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
			return(0);
		}
	}
	if(!TIFFGetField(input, TIFFTAG_YCBCRSUBSAMPLING, &h_samp, &v_samp)){
		h_samp=1;
		v_samp=1;
	}
	if(t2p->pdf_ojpegdata != NULL){
		_TIFFfree(t2p->pdf_ojpegdata);
		t2p->pdf_ojpegdata=NULL;
	} 
	t2p->pdf_ojpegdata = _TIFFmalloc(2048);
	if(t2p->pdf_ojpegdata == NULL){
		TIFFError(TIFF2PDF_MODULE, 
			"Can't allocate %u bytes of memory for t2p_process_ojpeg_tables, %s", 
			2048, 
			TIFFFileName(input));
		t2p->t2p_error = T2P_ERR_ERROR;
		return(0);
	}
	_TIFFmemset(t2p->pdf_ojpegdata, 0x00, 2048);
	t2p->pdf_ojpegdatalength = 0;
	table_count=t2p->tiff_samplesperpixel;
	if(proc==JPEGPROC_BASELINE){
		if(table_count>2) table_count=2;
	}
	ojpegdata=(unsigned char*)t2p->pdf_ojpegdata;
	ojpegdata[t2p->pdf_ojpegdatalength++]=0xff;
	ojpegdata[t2p->pdf_ojpegdatalength++]=0xd8;
	ojpegdata[t2p->pdf_ojpegdatalength++]=0xff;
	if(proc==JPEGPROC_BASELINE){
		ojpegdata[t2p->pdf_ojpegdatalength++]=0xc0;
	} else {
		ojpegdata[t2p->pdf_ojpegdatalength++]=0xc3;
	}
	ojpegdata[t2p->pdf_ojpegdatalength++]=0x00;
	ojpegdata[t2p->pdf_ojpegdatalength++]=(8 + 3*t2p->tiff_samplesperpixel);
	ojpegdata[t2p->pdf_ojpegdatalength++]=(t2p->tiff_bitspersample & 0xff);
	if(TIFFIsTiled(input)){
		ojpegdata[t2p->pdf_ojpegdatalength++]=
			(t2p->tiff_tiles[t2p->pdf_page].tiles_tilelength >> 8) & 0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=
			(t2p->tiff_tiles[t2p->pdf_page].tiles_tilelength ) & 0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=
			(t2p->tiff_tiles[t2p->pdf_page].tiles_tilewidth >> 8) & 0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=
			(t2p->tiff_tiles[t2p->pdf_page].tiles_tilewidth ) & 0xff;
	} else {
		ojpegdata[t2p->pdf_ojpegdatalength++]=
			(t2p->tiff_length >> 8) & 0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=
			(t2p->tiff_length ) & 0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=
			(t2p->tiff_width >> 8) & 0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=
			(t2p->tiff_width ) & 0xff;
	}
	ojpegdata[t2p->pdf_ojpegdatalength++]=(t2p->tiff_samplesperpixel & 0xff);
	for(i=0;i<t2p->tiff_samplesperpixel;i++){
		ojpegdata[t2p->pdf_ojpegdatalength++]=i;
		if(i==0){
			ojpegdata[t2p->pdf_ojpegdatalength] |= h_samp<<4 & 0xf0;;
			ojpegdata[t2p->pdf_ojpegdatalength++] |= v_samp & 0x0f;
		} else {
				ojpegdata[t2p->pdf_ojpegdatalength++]= 0x11;
		}
		ojpegdata[t2p->pdf_ojpegdatalength++]=i;
	}
	for(dest=0;dest<t2p->tiff_samplesperpixel;dest++){
		ojpegdata[t2p->pdf_ojpegdatalength++]=0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=0xdb;
		ojpegdata[t2p->pdf_ojpegdatalength++]=0x00;
		ojpegdata[t2p->pdf_ojpegdatalength++]=0x43;
		ojpegdata[t2p->pdf_ojpegdatalength++]=dest;
		_TIFFmemcpy( &(ojpegdata[t2p->pdf_ojpegdatalength++]), 
			&(((unsigned char*)q)[64*dest]), 64);
		t2p->pdf_ojpegdatalength+=64;
	}
	offset_table=0;
	for(dest=0;dest<table_count;dest++){
		ojpegdata[t2p->pdf_ojpegdatalength++]=0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=0xc4;
		offset_ms_l=t2p->pdf_ojpegdatalength;
		t2p->pdf_ojpegdatalength+=2;
		ojpegdata[t2p->pdf_ojpegdatalength++]=dest & 0x0f;
		_TIFFmemcpy( &(ojpegdata[t2p->pdf_ojpegdatalength]), 
			&(((unsigned char*)dc)[offset_table]), 16);
		code_count=0;
		offset_table+=16;
		for(i=0;i<16;i++){
			code_count+=ojpegdata[t2p->pdf_ojpegdatalength++];
		}
		ojpegdata[offset_ms_l]=((19+code_count)>>8) & 0xff;
		ojpegdata[offset_ms_l+1]=(19+code_count) & 0xff;
		_TIFFmemcpy( &(ojpegdata[t2p->pdf_ojpegdatalength]), 
			&(((unsigned char*)dc)[offset_table]), code_count);
		offset_table+=code_count;
		t2p->pdf_ojpegdatalength+=code_count;
	}
	if(proc==JPEGPROC_BASELINE){
	offset_table=0;
		for(dest=0;dest<table_count;dest++){
			ojpegdata[t2p->pdf_ojpegdatalength++]=0xff;
			ojpegdata[t2p->pdf_ojpegdatalength++]=0xc4;
			offset_ms_l=t2p->pdf_ojpegdatalength;
			t2p->pdf_ojpegdatalength+=2;
			ojpegdata[t2p->pdf_ojpegdatalength] |= 0x10;
			ojpegdata[t2p->pdf_ojpegdatalength++] |=dest & 0x0f;
			_TIFFmemcpy( &(ojpegdata[t2p->pdf_ojpegdatalength]), 
				&(((unsigned char*)ac)[offset_table]), 16);
			code_count=0;
			offset_table+=16;
			for(i=0;i<16;i++){
				code_count+=ojpegdata[t2p->pdf_ojpegdatalength++];
			}	
			ojpegdata[offset_ms_l]=((19+code_count)>>8) & 0xff;
			ojpegdata[offset_ms_l+1]=(19+code_count) & 0xff;
			_TIFFmemcpy( &(ojpegdata[t2p->pdf_ojpegdatalength]), 
				&(((unsigned char*)ac)[offset_table]), code_count);
			offset_table+=code_count;
			t2p->pdf_ojpegdatalength+=code_count;
		}
	}
	if(TIFFNumberOfStrips(input)>1){
		ojpegdata[t2p->pdf_ojpegdatalength++]=0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=0xdd;
		ojpegdata[t2p->pdf_ojpegdatalength++]=0x00;
		ojpegdata[t2p->pdf_ojpegdatalength++]=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;
		ojpegdata[t2p->pdf_ojpegdatalength++]= (ri>>8) & 0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]= ri & 0xff;
	}
	ojpegdata[t2p->pdf_ojpegdatalength++]=0xff;
	ojpegdata[t2p->pdf_ojpegdatalength++]=0xda;
	ojpegdata[t2p->pdf_ojpegdatalength++]=0x00;
	ojpegdata[t2p->pdf_ojpegdatalength++]=(6 + 2*t2p->tiff_samplesperpixel);
	ojpegdata[t2p->pdf_ojpegdatalength++]=t2p->tiff_samplesperpixel & 0xff;
	for(i=0;i<t2p->tiff_samplesperpixel;i++){
		ojpegdata[t2p->pdf_ojpegdatalength++]= i & 0xff;
		if(proc==JPEGPROC_BASELINE){
			ojpegdata[t2p->pdf_ojpegdatalength] |= 
				( ( (i>(table_count-1U)) ? (table_count-1U) : i) << 4U) & 0xf0;
			ojpegdata[t2p->pdf_ojpegdatalength++] |= 
				( (i>(table_count-1U)) ? (table_count-1U) : i) & 0x0f;
		} else {
			ojpegdata[t2p->pdf_ojpegdatalength++] =  (i << 4) & 0xf0;
		}
	}
	if(proc==JPEGPROC_BASELINE){
		t2p->pdf_ojpegdatalength++;
		ojpegdata[t2p->pdf_ojpegdatalength++]=0x3f;
		t2p->pdf_ojpegdatalength++;
	} else {
		ojpegdata[t2p->pdf_ojpegdatalength++]= (lp[0] & 0xff);
		t2p->pdf_ojpegdatalength++;
		ojpegdata[t2p->pdf_ojpegdatalength++]= (pt[0] & 0x0f);
	}

	return(1);
}

int t2p_process_ojpeg_tables(T2P* t2p, TIFF* input){
	uint16 proc=0;
	void* q;
	uint32 q_length=0;
	void* dc;
	uint32 dc_length=0;
	void* ac;
	uint32 ac_length=0;
	uint16* lp;
	uint16* pt;
	uint16 h_samp=1;
	uint16 v_samp=1;
	unsigned char* ojpegdata;
	uint16 table_count;
	uint32 offset_table;
	uint32 offset_ms_l;
	uint32 code_count;
	uint32 i=0;
	uint32 dest=0;
	uint16 ri=0;
	uint32 rows=0;
	
	if(!TIFFGetField(input, TIFFTAG_JPEGPROC, &proc)){
		TIFFError(TIFF2PDF_MODULE, 
			"Missing JPEGProc field in OJPEG image %s", 
			TIFFFileName(input));
			t2p->t2p_error = T2P_ERR_ERROR;
		return(0);
	}
	if(proc!=JPEGPROC_BASELINE && proc!=JPEGPROC_LOSSLESS){
		TIFFError(TIFF2PDF_MODULE, 
			"Bad JPEGProc field in OJPEG image %s", 
			TIFFFileName(input));
			t2p->t2p_error = T2P_ERR_ERROR;
		return(0);
	}
	if(!TIFFGetField(input, TIFFTAG_JPEGQTABLES, &q_length, &q)){
		TIFFError(TIFF2PDF_MODULE, 
			"Missing JPEGQTables field in OJPEG image %s", 
			TIFFFileName(input));
			t2p->t2p_error = T2P_ERR_ERROR;
		return(0);
	}
	if(q_length < (64U * t2p->tiff_samplesperpixel)){
		TIFFError(TIFF2PDF_MODULE, 
			"Bad JPEGQTables field in OJPEG image %s", 
			TIFFFileName(input));
			t2p->t2p_error = T2P_ERR_ERROR;
		return(0);
	} 
	if(!TIFFGetField(input, TIFFTAG_JPEGDCTABLES, &dc_length, &dc)){
		TIFFError(TIFF2PDF_MODULE, 
			"Missing JPEGDCTables field in OJPEG image %s", 
			TIFFFileName(input));
			t2p->t2p_error = T2P_ERR_ERROR;
		return(0);
	}
	if(proc==JPEGPROC_BASELINE){
		if(!TIFFGetField(input, TIFFTAG_JPEGACTABLES, &ac_length, &ac)){
			TIFFError(TIFF2PDF_MODULE, 
				"Missing JPEGACTables field in OJPEG image %s", 
				TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
			return(0);
		}
	} else {
		if(!TIFFGetField(input, TIFFTAG_JPEGLOSSLESSPREDICTORS, &lp)){
			TIFFError(TIFF2PDF_MODULE, 
				"Missing JPEGLosslessPredictors field in OJPEG image %s", 
				TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
				return(0);
		}
		if(!TIFFGetField(input, TIFFTAG_JPEGPOINTTRANSFORM, &pt)){
			TIFFError(TIFF2PDF_MODULE, 
				"Missing JPEGPointTransform field in OJPEG image %s", 
				TIFFFileName(input));
				t2p->t2p_error = T2P_ERR_ERROR;
			return(0);
		}
	}
	if(!TIFFGetField(input, TIFFTAG_YCBCRSUBSAMPLING, &h_samp, &v_samp)){
		h_samp=1;
		v_samp=1;
	}
	if(t2p->pdf_ojpegdata != NULL){
		_TIFFfree(t2p->pdf_ojpegdata);
		t2p->pdf_ojpegdata=NULL;
	} 
	t2p->pdf_ojpegdata = _TIFFmalloc(2048);
	if(t2p->pdf_ojpegdata == NULL){
		TIFFError(TIFF2PDF_MODULE, 
			"Can't allocate %u bytes of memory for t2p_process_ojpeg_tables, %s", 
			2048, 
			TIFFFileName(input));
		t2p->t2p_error = T2P_ERR_ERROR;
		return(0);
	}
	_TIFFmemset(t2p->pdf_ojpegdata, 0x00, 2048);
	t2p->pdf_ojpegdatalength = 0;
	table_count=t2p->tiff_samplesperpixel;
	if(proc==JPEGPROC_BASELINE){
		if(table_count>2) table_count=2;
	}
	ojpegdata=(unsigned char*)t2p->pdf_ojpegdata;
	ojpegdata[t2p->pdf_ojpegdatalength++]=0xff;
	ojpegdata[t2p->pdf_ojpegdatalength++]=0xd8;
	ojpegdata[t2p->pdf_ojpegdatalength++]=0xff;
	if(proc==JPEGPROC_BASELINE){
		ojpegdata[t2p->pdf_ojpegdatalength++]=0xc0;
	} else {
		ojpegdata[t2p->pdf_ojpegdatalength++]=0xc3;
	}
	ojpegdata[t2p->pdf_ojpegdatalength++]=0x00;
	ojpegdata[t2p->pdf_ojpegdatalength++]=(8 + 3*t2p->tiff_samplesperpixel);
	ojpegdata[t2p->pdf_ojpegdatalength++]=(t2p->tiff_bitspersample & 0xff);
	if(TIFFIsTiled(input)){
		ojpegdata[t2p->pdf_ojpegdatalength++]=
			(t2p->tiff_tiles[t2p->pdf_page].tiles_tilelength >> 8) & 0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=
			(t2p->tiff_tiles[t2p->pdf_page].tiles_tilelength ) & 0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=
			(t2p->tiff_tiles[t2p->pdf_page].tiles_tilewidth >> 8) & 0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=
			(t2p->tiff_tiles[t2p->pdf_page].tiles_tilewidth ) & 0xff;
	} else {
		ojpegdata[t2p->pdf_ojpegdatalength++]=
			(t2p->tiff_length >> 8) & 0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=
			(t2p->tiff_length ) & 0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=
			(t2p->tiff_width >> 8) & 0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=
			(t2p->tiff_width ) & 0xff;
	}
	ojpegdata[t2p->pdf_ojpegdatalength++]=(t2p->tiff_samplesperpixel & 0xff);
	for(i=0;i<t2p->tiff_samplesperpixel;i++){
		ojpegdata[t2p->pdf_ojpegdatalength++]=i;
		if(i==0){
			ojpegdata[t2p->pdf_ojpegdatalength] |= h_samp<<4 & 0xf0;;
			ojpegdata[t2p->pdf_ojpegdatalength++] |= v_samp & 0x0f;
		} else {
				ojpegdata[t2p->pdf_ojpegdatalength++]= 0x11;
		}
		ojpegdata[t2p->pdf_ojpegdatalength++]=i;
	}
	for(dest=0;dest<t2p->tiff_samplesperpixel;dest++){
		ojpegdata[t2p->pdf_ojpegdatalength++]=0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=0xdb;
		ojpegdata[t2p->pdf_ojpegdatalength++]=0x00;
		ojpegdata[t2p->pdf_ojpegdatalength++]=0x43;
		ojpegdata[t2p->pdf_ojpegdatalength++]=dest;
		_TIFFmemcpy( &(ojpegdata[t2p->pdf_ojpegdatalength++]), 
			&(((unsigned char*)q)[64*dest]), 64);
		t2p->pdf_ojpegdatalength+=64;
	}
	offset_table=0;
	for(dest=0;dest<table_count;dest++){
		ojpegdata[t2p->pdf_ojpegdatalength++]=0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=0xc4;
		offset_ms_l=t2p->pdf_ojpegdatalength;
		t2p->pdf_ojpegdatalength+=2;
		ojpegdata[t2p->pdf_ojpegdatalength++]=dest & 0x0f;
		_TIFFmemcpy( &(ojpegdata[t2p->pdf_ojpegdatalength]), 
			&(((unsigned char*)dc)[offset_table]), 16);
		code_count=0;
		offset_table+=16;
		for(i=0;i<16;i++){
			code_count+=ojpegdata[t2p->pdf_ojpegdatalength++];
		}
		ojpegdata[offset_ms_l]=((19+code_count)>>8) & 0xff;
		ojpegdata[offset_ms_l+1]=(19+code_count) & 0xff;
		_TIFFmemcpy( &(ojpegdata[t2p->pdf_ojpegdatalength]), 
			&(((unsigned char*)dc)[offset_table]), code_count);
		offset_table+=code_count;
		t2p->pdf_ojpegdatalength+=code_count;
	}
	if(proc==JPEGPROC_BASELINE){
	offset_table=0;
		for(dest=0;dest<table_count;dest++){
			ojpegdata[t2p->pdf_ojpegdatalength++]=0xff;
			ojpegdata[t2p->pdf_ojpegdatalength++]=0xc4;
			offset_ms_l=t2p->pdf_ojpegdatalength;
			t2p->pdf_ojpegdatalength+=2;
			ojpegdata[t2p->pdf_ojpegdatalength] |= 0x10;
			ojpegdata[t2p->pdf_ojpegdatalength++] |=dest & 0x0f;
			_TIFFmemcpy( &(ojpegdata[t2p->pdf_ojpegdatalength]), 
				&(((unsigned char*)ac)[offset_table]), 16);
			code_count=0;
			offset_table+=16;
			for(i=0;i<16;i++){
				code_count+=ojpegdata[t2p->pdf_ojpegdatalength++];
			}	
			ojpegdata[offset_ms_l]=((19+code_count)>>8) & 0xff;
			ojpegdata[offset_ms_l+1]=(19+code_count) & 0xff;
			_TIFFmemcpy( &(ojpegdata[t2p->pdf_ojpegdatalength]), 
				&(((unsigned char*)ac)[offset_table]), code_count);
			offset_table+=code_count;
			t2p->pdf_ojpegdatalength+=code_count;
		}
	}
	if(TIFFNumberOfStrips(input)>1){
		ojpegdata[t2p->pdf_ojpegdatalength++]=0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]=0xdd;
		ojpegdata[t2p->pdf_ojpegdatalength++]=0x00;
		ojpegdata[t2p->pdf_ojpegdatalength++]=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;
		ojpegdata[t2p->pdf_ojpegdatalength++]= (ri>>8) & 0xff;
		ojpegdata[t2p->pdf_ojpegdatalength++]= ri & 0xff;
	}
	ojpegdata[t2p->pdf_ojpegdatalength++]=0xff;
	ojpegdata[t2p->pdf_ojpegdatalength++]=0xda;
	ojpegdata[t2p->pdf_ojpegdatalength++]=0x00;
	ojpegdata[t2p->pdf_ojpegdatalength++]=(6 + 2*t2p->tiff_samplesperpixel);
	ojpegdata[t2p->pdf_ojpegdatalength++]=t2p->tiff_samplesperpixel & 0xff;
	for(i=0;i<t2p->tiff_samplesperpixel;i++){
		ojpegdata[t2p->pdf_ojpegdatalength++]= i & 0xff;
		if(proc==JPEGPROC_BASELINE){
			ojpegdata[t2p->pdf_ojpegdatalength] |= 
				( ( (i>(table_count-1U)) ? (table_count-1U) : i) << 4U) & 0xf0;
			ojpegdata[t2p->pdf_ojpegdatalength++] |= 
				( (i>(table_count-1U)) ? (table_count-1U) : i) & 0x0f;
		} else {
			ojpegdata[t2p->pdf_ojpegdatalength++] =  (i << 4) & 0xf0;
		}
	}
	if(proc==JPEGPROC_BASELINE){
		t2p->pdf_ojpegdatalength++;
		ojpegdata[t2p->pdf_ojpegdatalength++]=0x3f;
		t2p->pdf_ojpegdatalength++;
	} else {
		ojpegdata[t2p->pdf_ojpegdatalength++]= (lp[0] & 0xff);
		t2p->pdf_ojpegdatalength++;
		ojpegdata[t2p->pdf_ojpegdatalength++]= (pt[0] & 0x0f);
	}

	return(1);
}
