/* $Xorg: exportcl.c,v 1.3 2000/08/17 19:54:25 cpqbld Exp $ */

/**** module exportcl.c ****/
/******************************************************************************

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used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.


				NOTICE
                              
This software is being provided by AGE Logic, Inc. under the
following license.  By obtaining, using and/or copying this software,
you agree that you have read, understood, and will comply with these
terms and conditions:

     Permission to use, copy, modify, distribute and sell this
     software and its documentation for any purpose and without
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     herein is hereby granted, provided that you agree to comply
     with the following copyright notice and statements, including
     the disclaimer, and that the same appears on all copies and
     derivative works of the software and documentation you make.
     
     "Copyright 1993, 1994 by AGE Logic, Inc."
     
     THIS SOFTWARE IS PROVIDED "AS IS".  AGE LOGIC MAKES NO
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     example, but not limitation, AGE LOGIC MAKE NO
     REPRESENTATIONS OR WARRANTIES OF MERCHANTABILITY OR FITNESS
     FOR ANY PARTICULAR PURPOSE OR THAT THE SOFTWARE DOES NOT
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     EVENT SHALL EITHER PARTY BE LIABLE FOR ANY INDIRECT,
     INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOSS
     OF PROFITS, REVENUE, DATA OR USE, INCURRED BY EITHER PARTY OR
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     HEREUNDER HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH
     DAMAGES.
    
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     Title to this software shall at all times remain with AGE
     Logic, Inc.
*****************************************************************************
  
	exportcl.c -- export client flo element tests 

	Syd Logan -- AGE Logic, Inc.
  
*****************************************************************************/
/* $XFree86: xc/programs/xieperf/exportcl.c,v 1.5 2001/01/17 23:45:37 dawes Exp $ */

#include "xieperf.h"
#include <stdio.h>

static XiePhotomap XIEPhotomap;
static XiePhotomap ControlPlane;
static XieLut	XIELut;
static XieRoi	XIERoi;
static unsigned char *lut;
static int lutSize;
static XieRectangle *rects;
static int rectsSize;
extern unsigned int dataCheckSum1;

static XIEimage	*image;
static int flo_notify;
static XiePhotoElement *flograph;
static XiePhotoflo flo;
static XieHistogramData *histos;
static int flo_elements;
static int useDomain;
static int histoSrc;

extern Window monitorWindow;
extern Bool dontClear;
static char *data;

extern char *imagepath;

int 
InitExportClientPhoto(XParms xp, Parms p, int reps)
{
        char *encode_params=NULL;
	int *size;
	unsigned char pixel_stride[ 3 ];
	unsigned char scanline_pad[ 3 ];
	char buf[ 64 ];

	flograph = ( XiePhotoElement * ) NULL;
	XIEPhotomap = ( XiePhotomap ) NULL;
	flo = ( XiePhotoflo ) NULL;

	image = p->finfo.image1;
	if ( !image )
		return ( 0 );

	sprintf( buf, "%s/%s", imagepath, image->fname );
        size = &image->fsize;
        *size = GetFileSize( buf );
	if ( *size == 0 )
		return( 0 );

	data = ( char * ) malloc( *size );
	if ( data == ( char * ) NULL )
		return( 0 );
	flograph = XieAllocatePhotofloGraph(2);	
	if ( flograph == ( XiePhotoElement * ) NULL )
	{
		fprintf( stderr, "XieAllocatePhotofloGraph failed\n" );
		reps = 0;
	}
	else
	{
		switch( image->decode )
		{
		case xieValDecodeJPEGBaseline:
			if ( ( XIEPhotomap = GetXIETriplePhotomap( xp, p, 1 ) ) == 
				( XiePhotomap ) NULL )
			{
				reps = 0;
			}
			else
			{
				unsigned char h_samples[3];
				unsigned char v_samples[3];

				h_samples[0] = h_samples[1] = h_samples[2] = 1;
				v_samples[0] = v_samples[1] = v_samples[2] = 1;

				encode_params = ( char * ) XieTecEncodeJPEGBaseline(
					image->interleave,
					image->band_order,
					h_samples,
					v_samples,
					( char * ) NULL,
					0,
					( char * ) NULL,
					0,
					( char * ) NULL,
					0 
				);
			}	
			break;
		case xieValDecodeUncompressedTriple:
			if ( ( XIEPhotomap = GetXIETriplePhotomap( xp, p, 1 ) ) == 
				( XiePhotomap ) NULL )
			{
				reps = 0;
			}
			else
			{
				pixel_stride[ 0 ] = image->pixel_stride[ 0 ];
				pixel_stride[ 1 ] = image->pixel_stride[ 1 ];
				pixel_stride[ 2 ] = image->pixel_stride[ 2 ];
				scanline_pad[ 0 ] = image->scanline_pad[ 0 ];
				scanline_pad[ 1 ] = image->scanline_pad[ 1 ];
				scanline_pad[ 2 ] = image->scanline_pad[ 2 ];

	        		encode_params = ( char * ) XieTecEncodeUncompressedTriple(
					image->fill_order,
					image->pixel_order,		
					image->band_order,
					xieValBandByPixel,	
					pixel_stride,
					scanline_pad
				);
			}
			break;
		case xieValDecodeUncompressedSingle:
			if ( ( XIEPhotomap = GetXIEPhotomap( xp, p, 1 ) ) == 
				( XiePhotomap ) NULL )
			{
				reps = 0;
			}
			else
			{
	        		encode_params = ( char * ) XieTecEncodeUncompressedSingle(
					image->fill_order,
					image->pixel_order,		
					image->pixel_stride[ 0 ],
					image->scanline_pad[ 0 ]
				);
			}
			break;
		case xieValDecodeG31D:
			if ( ( XIEPhotomap = GetXIEFAXPhotomap( xp, p, 1,
				False ) ) == ( XiePhotomap ) NULL )
			{
				reps = 0;
			}
			else
			{
	        		encode_params = ( char * ) XieTecEncodeG31D(
					False,
					False,		
					xieValLSFirst
				);
			}
			break;
		case xieValDecodeG32D:
			if ( ( XIEPhotomap = GetXIEFAXPhotomap( xp, p, 1,
				False ) ) == ( XiePhotomap ) NULL )
			{
				reps = 0;
			}
			else
			{
	        		encode_params = ( char * ) XieTecEncodeG32D(
					False,
					False,
					False,		
					xieValLSFirst,
					1
				);
			}
			break;
		case xieValDecodeG42D:
			if ( ( XIEPhotomap = GetXIEFAXPhotomap( xp, p, 1,
				False ) ) == ( XiePhotomap ) NULL )
			{
				reps = 0;
			}
			else
			{
	        		encode_params = ( char * ) XieTecEncodeG42D(
					False,
					False,
					xieValLSFirst
				);
			}
			break;
		case xieValDecodeTIFF2:
			if ( ( XIEPhotomap = GetXIEFAXPhotomap( xp, p, 1,
				False ) ) == ( XiePhotomap ) NULL )
			{
				reps = 0;
			}
			else
			{
	        		encode_params = ( char * ) XieTecEncodeTIFF2(
					xieValLSFirst,
					False		
				);
			}
			break;
		case xieValDecodeTIFFPackBits:
			if ( ( XIEPhotomap = GetXIEFAXPhotomap( xp, p, 1,
				False ) ) == ( XiePhotomap ) NULL )
			{
				reps = 0;
			}
			else
			{
	        		encode_params = ( char * ) XieTecEncodeTIFFPackBits(
					xieValLSFirst
				);
			}
			break;
		default:
			reps = 0;
			break;
		}

		if ( reps )
		{
			XieFloImportPhotomap(&flograph[0], XIEPhotomap, False );
			XieFloExportClientPhoto(&flograph[1],
				1,              /* source phototag number */
				xieValNewData,
				image->decode,
				encode_params
			);

			flo = XieCreatePhotoflo( xp->d, flograph, 2 );
			flo_notify = True;
		}
	}
	if ( encode_params )
	{
		if ( image->decode == xieValDecodeJPEGBaseline )
			XieFreeEncodeJPEGBaseline( 
			( XieEncodeJPEGBaselineParam * ) encode_params );
		else
			XFree( encode_params );	
	}
	if ( !reps )
		FreeExportClientPhotoStuff( xp, p );
	return( reps );
}

int 
InitExportClientLUT(XParms xp, Parms p, int reps)
{
	int	i;
        XieOrientation band_order = xieValLSFirst;
        XieLTriplet     start, length;

	XIELut = ( XieLut ) NULL;
	flograph = ( XiePhotoElement * ) NULL;
	flo = ( XiePhotoflo ) NULL;

	histos = ( XieHistogramData * ) malloc( sizeof( XieHistogramData ) *
		xp->vinfo.colormap_size );
	lutSize = ( xp->vinfo.colormap_size ) * sizeof( unsigned char );
	lut = (unsigned char *) malloc( lutSize );
	data = (char *) malloc( lutSize );
	if ( lut == ( unsigned char * ) NULL || data == ( char * ) NULL ||
		histos == ( XieHistogramData * ) NULL )
	{
		reps = 0;
	}
	else
	{
		for ( i = 0; i < lutSize; i++ )
		{
			lut[ i ] = ( xp->vinfo.colormap_size ) - i - 1;
		}
		if ( ( XIELut = GetXIELut( xp, p, lut, lutSize, lutSize ) ) ==
			( XieLut ) NULL )
		{
			reps = 0;
		}	
	}
	if ( reps )
	{
		flo_elements = 2;
		flograph = XieAllocatePhotofloGraph( flo_elements );	
		if ( flograph == ( XiePhotoElement * ) NULL )
		{
			fprintf( stderr, "XieAllocatePhotofloGraph failed\n" );
			reps = 0;
		}
	}
	if ( reps )
	{
		XieFloImportLUT(&flograph[0], XIELut);

		length[ 0 ] = xp->vinfo.colormap_size;
		length[ 1 ] = 0;
		length[ 2 ] = 0;

		start[ 0 ] = 0;
		start[ 1 ] = 0;
		start[ 2 ] = 0;

		XieFloExportClientLUT(&flograph[1],
			1,              /* source phototag number */
			band_order,
			xieValNewData,
			start,
			length
		);

		flo = XieCreatePhotoflo( xp->d, flograph, flo_elements );
		flo_notify = True;
	}
	if ( !reps )
	{
		FreeExportClientLUTStuff( xp, p );
	}
	else
	{
		XMapRaised( xp->d, monitorWindow );
		XSync( xp->d, 0 );
	}
	return( reps );
}

int 
InitExportClientROI(XParms xp, Parms p, int reps)
{
	int	i;

        XIERoi = ( XieRoi ) NULL;
        flograph = ( XiePhotoElement * ) NULL;
        flo = ( XiePhotoflo ) NULL;

	rectsSize = (( ExportClParms * ) p->ts)->numROIs;
	rects = (XieRectangle *)malloc( rectsSize * sizeof( XieRectangle ) );
	data = (char *) NULL;
	if ( rects == ( XieRectangle * ) NULL )
	{
		reps = 0;
	}
	else
	{
		for ( i = 0; i < rectsSize; i++ )
		{
			rects[ i ].x = i * 10;
			rects[ i ].y = i * 10; 
			rects[ i ].width = i * 10;
			rects[ i ].height = i * 10;
			XFillRectangle( xp->d, xp->w, xp->fggc,
				rects[ i ].x,
				rects[ i ].y,
				rects[ i ].width,
				rects[ i ].height
			 );
		}
		if ( ( XIERoi = GetXIERoi( xp, p, rects, rectsSize ) ) ==
			( XieRoi ) NULL )
		{
			reps = 0;
		}
		else
		{
			flo_elements = 2;
			flograph = XieAllocatePhotofloGraph( flo_elements );	
			if ( flograph == ( XiePhotoElement * ) NULL )
			{
				fprintf( stderr, 
					"XieAllocatePhotofloGraph failed\n" );
				reps = 0;
			}
			else
			{
				XieFloImportROI(&flograph[0], XIERoi);
				XieFloExportClientROI(&flograph[1],
					1,       /* source phototag number */
					xieValNewData
				);
				flo = XieCreatePhotoflo( xp->d, flograph, flo_elements );
				flo_notify = True;
			}
		}
	}
	if ( !reps )
	{
		FreeExportClientROIStuff( xp, p );
	}
	else
		dontClear = True;
	return( reps );
}

int 
InitExportClientHistogram(XParms xp, Parms p, int reps)
{
	XieProcessDomain domain;
	int	idx, src;
        XieRectangle    rect;
	ExportClParms	*parms;
	XIEimage *image;
	int constrainflag = 0;

	parms = ( ExportClParms * )p->ts;
	XIELut = ( XieLut ) NULL;
	XIERoi = ( XieRoi ) NULL;
	XIEPhotomap = ( XiePhotomap ) NULL;
	ControlPlane = ( XiePhotomap ) NULL;
	histos = ( XieHistogramData * ) NULL;
	flograph = ( XiePhotoElement * ) NULL;
	flo = ( XiePhotoflo ) NULL;

	if ( parms )	
        	useDomain = parms->useDomain;
	else
		useDomain = DomainNone;

	flo_elements = 3;

	image = p->finfo.image1;
	if ( !image )
	{
		reps = 0;
	}

	if ( reps && ( xp->screenDepth != image->depth[ 0 ] ) )
        {
		flo_elements+=2;
                constrainflag = 1;
                if ( ( XIELut = CreatePointLut( xp, p,
                        1 << image->depth[ 0 ], 
			1 << xp->screenDepth, False ) )
                        == ( XieLut ) NULL )
                {
                        reps = 0;
                }
        }

	if ( reps && useDomain == DomainROI )
	{
                rect.x = parms->x;
                rect.y = parms->y;
                rect.width = parms->width;
                rect.height = parms->height;

                if ( ( XIERoi = GetXIERoi( xp, p, &rect, 1 ) ) ==
                        ( XieRoi ) NULL )
                {
			reps = 0;
		}
		flo_elements+=1;
	}
	else if ( reps && useDomain == DomainCtlPlane )
	{
		ControlPlane = GetControlPlane( xp, 2 );
		if ( ControlPlane == ( XiePhotomap ) NULL )
			reps = 0;
		flo_elements+=1;
	}

	if ( reps )
	{
		histos = ( XieHistogramData * ) malloc( sizeof( XieHistogramData ) * ( 1 << image->depth[ 0 ] ) );
		if ( histos == ( XieHistogramData * ) NULL )
		{
			reps = 0;
		}
	}
	if ( reps )
	{
		flograph = XieAllocatePhotofloGraph(flo_elements);	
		if ( flograph == ( XiePhotoElement * ) NULL )
		{
			fprintf( stderr, "XieAllocatePhotofloGraph failed\n" );
			reps = 0;
		}
		else if ( ( XIEPhotomap = 
			GetXIEPhotomap( xp, p, 1 ) ) == ( XiePhotomap ) NULL )
		{
			reps = 0;
		}
		else
		{
			domain.offset_x = 0;
			domain.offset_y = 0;
			domain.phototag = 0;

			idx = 0;
			if ( useDomain == DomainROI )
			{
				XieFloImportROI(&flograph[idx], XIERoi);
				idx++;
				domain.phototag = idx;
			}
			else if ( useDomain == DomainCtlPlane )
			{
				XieFloImportPhotomap(&flograph[idx], 
					ControlPlane, False);
				idx++;
				domain.phototag = idx;
			}
			
			XieFloImportPhotomap(&flograph[idx], 
				XIEPhotomap, False );
			idx++;
			src = idx;

			XieFloExportClientHistogram(&flograph[idx],
				idx,              /* source phototag number */
				&domain,
				xieValNewData
			);
			idx++;
			histoSrc = idx;
	
			if ( constrainflag )
			{
				XieFloImportLUT(&flograph[idx], XIELut );
				idx++;

				domain.phototag = 0;
				domain.offset_x = 0;
				domain.offset_y = 0;
				XieFloPoint(&flograph[idx],
					src,
					&domain,
					idx,
					0x7
				);
				idx++;
				src = idx;
			}	

			XieFloExportDrawable(&flograph[idx],
				src,     	/* source phototag number */
				xp->w,
				xp->fggc,
				0,       /* x offset in window */
				0        /* y offset in window */
			);
			idx++;

			flo = XieCreatePhotoflo( xp->d, flograph, flo_elements );
			flo_notify = True;
		}
	}
	if ( reps )
	{
		XMapRaised( xp->d, monitorWindow );
		XSync( xp->d, 0 );
	}
	else 
	{
		FreeExportClientHistogramStuff( xp, p );
	}
	return( reps );
}

void 
DoExportClientPhotoCSum(XParms xp, Parms p, int reps)
{
    	int     i, done;
	unsigned int checksum;

    	for (i = 0; i != reps; i++) {
		XieExecutePhotoflo( xp->d, flo, flo_notify );
		XSync( xp->d, 0 );
		if ( image->bandclass == xieValTripleBand && 
			image->interleave == xieValBandByPlane )
		{
			ReadNotifyExportTripleData( xp, p, 0, flo, 2, 1, 
				image->fsize, &data, &done );
		}
		else
		{
			ReadNotifyExportData( xp, p, 0, flo, 2, 1, 
				image->fsize, &data, &done );
		}
		WaitForXIEEvent( xp, xieEvnNoPhotofloDone, flo, 0, False );	
		checksum = CheckSum( data, image->fsize );
		if ( checksum != image->chksum )
		{
			fprintf( stderr, 
				"Photomap not read correctly by client\n" );
			break;
		}
    	}
}

void 
DoExportClientPhoto(XParms xp, Parms p, int reps)
{
    	int     i, done;

    	for (i = 0; i != reps; i++) {
		XieExecutePhotoflo( xp->d, flo, flo_notify );
		XSync( xp->d, 0 );
		if ( image->bandclass == xieValTripleBand && 
			image->interleave == xieValBandByPlane )
		{
			ReadNotifyExportTripleData( xp, p, 0, flo, 2, 1, 
				image->fsize, &data, &done );
		}
		else
		{
			ReadNotifyExportData( xp, p, 0, flo, 2, 1, 
				image->fsize, &data, &done );
		}
		WaitForXIEEvent( xp, xieEvnNoPhotofloDone, flo, 0, False );	
    	}
}

void 
DoExportClientHistogram(XParms xp, Parms p, int reps)
{
    	int     i, done, numHistos;

    	for (i = 0; i != reps; i++) {
		XieExecutePhotoflo( xp->d, flo, flo_notify );
		XSync( xp->d, 0 );
		numHistos = ReadNotifyExportData( xp, p, 0, flo, histoSrc, 
			sizeof( XieHistogramData ), 0, ( char ** ) &histos, 
			&done ) / sizeof( XieHistogramData );
		WaitForXIEEvent( xp, xieEvnNoPhotofloDone, flo, 0, False );	
		DrawHistogram( xp, monitorWindow, ( XieHistogramData * ) histos,
			numHistos, 1<< xp->vinfo.depth ); 
    	}
}

void 
DoExportClientLUT(XParms xp, Parms p, int reps)
{
    	int     i, j, done;

    	for (i = 0; i != reps; i++) {
		XieExecutePhotoflo( xp->d, flo, flo_notify );
                XSync( xp->d, 0 );
                ReadNotifyExportData( xp, p, 0, flo, 2,
                        sizeof( unsigned char ), lutSize, 
			&data, &done );
               	WaitForXIEEvent( xp, xieEvnNoPhotofloDone, flo, 0, False ); 
		for ( j = 0; j < lutSize; j++ )
		{
			histos[ j ].value = j;
			histos[ j ].count = (( unsigned char * ) data)[ j ];
		}
                if ( memcmp( lut, data, lutSize * sizeof( unsigned char ) ) )
                {
                        fprintf( stderr, "ExportClientLUT failed\n" );
                        break;
                }
		DrawHistogram( xp, monitorWindow, ( XieHistogramData * ) histos,
			lutSize, xp->vinfo.colormap_size ); 
    	}
}

void 
DoExportClientROI(XParms xp, Parms p, int reps)
{
    	int     i, j, done, n;
	GC	gc;

	gc = xp->fggc;
    	for (i = 0; i != reps; i++) 
	{
		done = 0;
		XieExecutePhotoflo( xp->d, flo, flo_notify );
                XSync( xp->d, 0 );
               	n = ReadNotifyExportData( xp, p, 0, flo, 2, 
                       	sizeof( XieRectangle ), 0, &data, &done );
	
		if ( n == 0 )
			continue;

		for ( j = 0; j < n / sizeof( XieRectangle ); j++ )	
		{
			XDrawRectangle( xp->d, xp->w, gc,
				( (( XieRectangle * )data)[ j ] ).x,
				( (( XieRectangle * )data)[ j ] ).y,
				( (( XieRectangle * )data)[ j ] ).width,
				( (( XieRectangle * )data)[ j ] ).height );
			if ( gc == xp->fggc )
				gc = xp->bggc;
			else
				gc = xp->fggc;
		}
               	WaitForXIEEvent( xp, xieEvnNoPhotofloDone, flo, 0, False ); 
    	}
}

void 
EndExportClientLUT(XParms xp, Parms p)
{
	XUnmapWindow( xp->d, monitorWindow );
	FreeExportClientLUTStuff( xp, p );
}

void 
EndExportClientPhoto(XParms xp, Parms p)
{
	FreeExportClientPhotoStuff( xp, p );
}

void 
EndExportClientHistogram(XParms xp, Parms p)
{
	XUnmapWindow( xp->d, monitorWindow );
	FreeExportClientHistogramStuff( xp, p );
}

void 
EndExportClientROI(XParms xp, Parms p)
{
	dontClear = False;
	FreeExportClientROIStuff( xp, p );
}

void
FreeExportClientPhotoStuff(XParms xp, Parms p)
{
	if ( data )
	{
		free( data );
		data = ( char * ) NULL;
	}

	if ( flograph )
        {
                XieFreePhotofloGraph(flograph,flo_elements);
                flograph = ( XiePhotoElement * ) NULL;
        }

        if ( flo )
        {
                XieDestroyPhotoflo( xp->d, flo );
                flo = ( XiePhotoflo ) NULL;
        }

	if ( XIEPhotomap && IsPhotomapInCache( XIEPhotomap ) == False )
	{
                XieDestroyPhotomap( xp->d, XIEPhotomap );
                XIEPhotomap = ( XiePhotomap ) NULL;
	}
}

void
FreeExportClientROIStuff(XParms xp, Parms p)
{
        if ( data )
        {
                free( data );
                data = ( char * ) NULL;
        }

        if ( flograph )
        {
                XieFreePhotofloGraph(flograph,flo_elements);
                flograph = ( XiePhotoElement * ) NULL;
        }

        if ( flo )
        {
                XieDestroyPhotoflo( xp->d, flo );
                flo = ( XiePhotoflo ) NULL;
        }

        if ( XIERoi )
        {
                XieDestroyROI( xp->d, XIERoi );
                XIERoi = ( XieRoi ) NULL;
        }

	if ( rects )
	{
		free( rects );
		rects = ( XieRectangle * ) NULL;
	}
}

void
FreeExportClientLUTStuff(XParms xp, Parms p)
{
	if ( data )
	{
		free( data );
		data = ( char * ) NULL;
	}

	if ( histos )
	{
		free( histos );
		histos = ( XieHistogramData * ) NULL;
	}

	if ( lut )
	{
		free( lut );
		lut = ( unsigned char * ) NULL;
	}

	if ( XIELut )
	{
		XieDestroyLUT( xp->d, XIELut );
		XIELut = ( XieLut ) NULL;
	}

        if ( flograph )
        {
                XieFreePhotofloGraph(flograph,flo_elements);
                flograph = ( XiePhotoElement * ) NULL;
        }
        if ( flo )
        {
                XieDestroyPhotoflo( xp->d, flo );
                flo = ( XiePhotoflo ) NULL;
        }
}

void
FreeExportClientHistogramStuff( xp, p )
XParms	xp;
Parms	p;
{
        if ( XIERoi )
        {
                XieDestroyROI( xp->d, XIERoi );
                XIERoi = ( XieRoi ) NULL;
        }
	if ( XIEPhotomap && IsPhotomapInCache( XIEPhotomap ) == False )
	{
		XieDestroyPhotomap( xp->d, XIEPhotomap );
		XIEPhotomap = ( XiePhotomap ) NULL;
	}
	if ( ControlPlane && IsPhotomapInCache( ControlPlane ) == False )
	{
		XieDestroyPhotomap( xp->d, ControlPlane );
		ControlPlane = ( XiePhotomap ) NULL;
	}
	if ( XIELut )
	{
                XieDestroyLUT( xp->d, XIELut );
                XIELut = ( XieLut ) NULL;
	}
	if ( histos )
	{
		free( histos );
		histos = ( XieHistogramData * ) NULL;
	}
        if ( flograph )
        {
                XieFreePhotofloGraph(flograph,flo_elements);
                flograph = ( XiePhotoElement * ) NULL;
        }
        if ( flo )
        {
                XieDestroyPhotoflo( xp->d, flo );
                flo = ( XiePhotoflo ) NULL;
        }
}