/* $Xorg: math.c,v 1.3 2000/08/17 19:54:26 cpqbld Exp $ */

/**** module math.c ****/
/******************************************************************************

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*****************************************************************************
  
	math.c -- math flo element tests 

	Syd Logan -- AGE Logic, Inc.
  
*****************************************************************************/
/* $XFree86: xc/programs/xieperf/math.c,v 1.5 2001/01/17 23:45:38 dawes Exp $ */

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

static XiePhotomap XIEPhotomap;
static XiePhotomap ControlPlane;
static XieRoi XIERoi;
static XieLut XIELut;

static int flo_notify;
static XiePhotoElement *flograph;
static XiePhotoflo flo;
static int flo_elements;

static XieClipScaleParam *parms;
static int monoflag;

int 
InitMath(XParms xp, Parms p, int reps)
{
	XieProcessDomain domain;
	XieArithmeticOp	*ops;
	int		nops;
	unsigned int	bandMask;
	Bool		useDomain;
	Bool		constrain;
	XieConstrainTechnique constrainTech;
	int		idx;
	XieRectangle	rect;
	int		i;
        XieLTriplet levels;
        XieConstant in_low,in_high;
        XieLTriplet out_low,out_high;
	XIEimage *image;
        int     cclass;

#if     defined(__cplusplus) || defined(c_plusplus)
        cclass = xp->vinfo.c_class;
#else
        cclass = xp->vinfo.class;
#endif

        monoflag = 0;

	useDomain = ( ( MathParms * )p->ts )->useDomain;
	constrain = ( ( MathParms * )p->ts )->constrain;
	constrainTech = ( ( MathParms * )p->ts )->constrainTech;
	ops = ( ( MathParms * )p->ts )->ops;
	nops = ( ( MathParms * )p->ts )->nops;
	bandMask = ( ( MathParms * )p->ts )->bandMask;
	in_low[ 0 ] = ( ( MathParms * )p->ts )->inLow;
	in_high[ 0 ] = ( ( MathParms * )p->ts )->inHigh;  
	in_low[ 1 ] = in_low[ 2 ] = 0.0;
	in_high[ 1 ] = in_high[ 2 ] = 0.0;

	XIELut = ( XieLut ) NULL;
	XIERoi = ( XieRoi ) NULL;
	XIEPhotomap = ( XiePhotomap ) NULL;
	ControlPlane = ( XiePhotomap ) NULL;
	flo = ( XiePhotoflo ) NULL;
	flograph = ( XiePhotoElement * ) NULL;
	parms = ( XieClipScaleParam * ) NULL;

	for ( i = 0; i < nops; i++ )
	{
		switch( ops[ i ] )
		{
			case xieValExp:
			case xieValLn:
			case xieValLog2:
			case xieValLog10:
			case xieValSquare:
			case xieValSqrt:
				break;
			default:
				fprintf( stderr, "Invalid math op\n" );
				reps = 0;
				break;
		}
	}

	if ( !reps )
		return( reps );	

	image = p->finfo.image1;

	if ( !image )
		return ( 0 );

	if ( ( constrain == False && xp->screenDepth != image->depth[ 0 ] ) ) 
	{
                monoflag = 1;
                if ( ( XIELut = CreatePointLut( xp, p,
                        1 << image->depth[ 0 ], 1 << xp->screenDepth, False ) )
                        == ( XieLut ) NULL )
                {
                        reps = 0;
                }
	}
        else if ( IsTrueColorOrDirectColor( cclass ) && constrain == True )
        {
                monoflag = 1;
                if ( ( XIELut = CreatePointLut( xp, p,
                        xp->vinfo.colormap_size, 1 << xp->screenDepth, False ) )
                        == ( XieLut ) NULL )
                {
                        reps = 0;
                }
        }

	flo_elements = 2 + nops;
	if ( useDomain == DomainROI || useDomain == DomainCtlPlane )
		flo_elements++;
	if ( constrain == True )
		flo_elements += 2;
	if ( monoflag )
		flo_elements += 2;

	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 if ( useDomain == DomainROI )
	{
		rect.x = ( ( MathParms * )p->ts )->x;
		rect.y = ( ( MathParms * )p->ts )->y;
		rect.width = ( ( MathParms * )p->ts )->width;
		rect.height = ( ( MathParms * )p->ts )->height;

		if ( ( XIERoi = GetXIERoi( xp, p, &rect, 1 ) ) == 
			( XieRoi ) NULL )
		{
			reps = 0;
		}
	}
	else if ( useDomain == DomainCtlPlane )
	{
		ControlPlane = GetControlPlane( xp, 13 );
		if ( ControlPlane == ( XiePhotomap ) NULL )
			reps = 0;
	}

	if ( reps )
	{
		idx = 0;

		domain.offset_x = 0;
		domain.offset_y = 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;
                }
		else
		{
			domain.phototag = 0;
		}

		XieFloImportPhotomap(&flograph[idx], XIEPhotomap, False );
		idx++;

		if ( constrain == True )
		{
			XieFloUnconstrain( &flograph[idx], idx );
			idx++;
		}

		for ( i = 0; i < nops; i++ )
		{ 
			XieFloMath(&flograph[idx], 
				idx,
				&domain,
				ops[ i ],
				bandMask
			);
			idx++;
		}

		if ( constrain == True )
		{
		        levels[ 0 ] = xp->vinfo.colormap_size;
			levels[ 1 ] = 0;
			levels[ 2 ] = 0;

			if ( constrainTech == xieValConstrainHardClip )
				parms = ( XieClipScaleParam * ) NULL;
			else if ( constrainTech == xieValConstrainClipScale )
			{
				out_low[ 0 ] = 0;
				out_high[ 0 ] = xp->vinfo.colormap_size - 1;

				parms = ( XieClipScaleParam * ) 
					XieTecClipScale( in_low, 
					in_high, out_low, out_high);
				if ( parms == ( XieClipScaleParam * ) NULL )
				{
	                                fprintf( stderr, "Trouble loading clipscale technique parameters\n" );
					reps = 0;
				}
			} 
			else
			{
				fprintf( stderr, 
					"Invalid technique for constrain\n" );
				reps = 0;
			}	
			if ( reps )
			{
				XieFloConstrain( &flograph[idx],
					idx,
					levels,
					constrainTech,
					( char * ) parms
				);
				idx++;
			}
		}
	
		if ( reps && monoflag )
		{
                        XieFloImportLUT(&flograph[idx], XIELut );
                        idx++;

                        domain.phototag = 0;
                        domain.offset_x = 0;
                        domain.offset_y = 0;
                        XieFloPoint(&flograph[idx],
                                idx-1,
                                &domain,
                                idx,
                                0x7
                        );
                        idx++;
		}

		if ( reps )	
		{
			XieFloExportDrawable(&flograph[idx],
				idx,     	/* 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 )
		FreeMathStuff( xp, p );
	return( reps );
}

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

    	for (i = 0; i != reps; i++) {
		XieExecutePhotoflo( xp->d, flo, flo_notify );
		XSync( xp->d, 0 );
		WaitForXIEEvent( xp, xieEvnNoPhotofloDone, flo, 0, False );	
    	}
}

void 
EndMath(XParms xp, Parms p)
{
	FreeMathStuff( xp, p );
}

void
FreeMathStuff(XParms xp, Parms p)
{
	if ( parms )
	{
		XFree( parms );
		parms = ( XieClipScaleParam * ) NULL;
	}
	if ( XIELut )
	{
                XieDestroyLUT( xp->d, XIELut );
                XIELut = ( XieLut ) NULL;
	}
	if ( XIERoi )
	{
                XieDestroyROI( xp->d, XIERoi );
                XIERoi = ( XieRoi ) NULL;
	}
	if ( XIEPhotomap && IsPhotomapInCache( XIEPhotomap ) == False )
	{
		XieDestroyPhotomap(xp->d, XIEPhotomap);
		XIEPhotomap = ( XiePhotomap ) NULL;
	}
        if ( ControlPlane != ( XiePhotomap ) NULL && IsPhotomapInCache( ControlPlane ) == False )
        {
                XieDestroyPhotomap( xp->d, ControlPlane );
                ControlPlane = ( XiePhotomap ) NULL;
        }

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