Ejemplos de BuildActiveList en C++ (Cpp)

Ejemplo n.º 1

Archivo: ilu_region.c Proyecto: MichaelH13/sdkpub

ILubyte *iScanFill()
{
	Edge	**edges = NULL, *active = NULL/*, *temp*/;
	ILuint	i, scan;

	iRegionMask = NULL;

	if ((RegionPointsi == NULL && RegionPointsf == NULL) || PointNum == 0)
		return NULL;

	if (RegionPointsf) {
		RegionPointsi = (ILpointi*)ialloc(sizeof(ILpointi) * PointNum);
		if (RegionPointsi == NULL)
			goto error;
	}

	for (i = 0; i < PointNum; i++) {
		if (RegionPointsf) {
			RegionPointsi[i].x = (ILuint)(iluCurImage->Width * RegionPointsf[i].x);
			RegionPointsi[i].y = (ILuint)(iluCurImage->Height * RegionPointsf[i].y);
		}
		if (RegionPointsi[i].x >= (ILint)iluCurImage->Width || RegionPointsi[i].y >= (ILint)iluCurImage->Height)
			goto error;
	}

	edges = (Edge**)ialloc(sizeof(Edge*) * iluCurImage->Height);
	iRegionMask = (ILubyte*)ialloc(iluCurImage->Width * iluCurImage->Height * iluCurImage->Depth);
	if (edges == NULL || iRegionMask == NULL)
		goto error;
	imemclear(iRegionMask, iluCurImage->Width * iluCurImage->Height * iluCurImage->Depth);

	for (i = 0; i < iluCurImage->Height; i++) {
		edges[i] = (Edge*)ialloc(sizeof(Edge));
		edges[i]->next = NULL;
	}
	BuildEdgeList(PointNum, RegionPointsi, edges);
	active = (Edge*)ialloc(sizeof(Edge));
	active->next = NULL;

	for (scan = 0; scan < iluCurImage->Height; scan++) {
		BuildActiveList(scan, active, edges);
		if (active->next) {
			FillScan(scan, active);
			UpdateActiveList(scan, active);
			ResortActiveList(active);
		}
	}

	// Free edge records that have been allocated.
	/*for (i = 0; i < iluCurImage->Height; i++) {
		while (edges[i]) {
			temp = edges[i]->next;
			ifree(edges[i]);
			edges[i] = temp;
		}
	}*/

	ifree(edges);

	if (RegionPointsf) {
		ifree(RegionPointsi);
		RegionPointsi = NULL;
	}

	return iRegionMask;

error:
	if (RegionPointsf) {
		ifree(RegionPointsi);
		RegionPointsi = NULL;
	}

	// Free edge records that have been allocated.

	ifree(edges);
	ifree(iRegionMask);
	return NULL;
}

Ejemplo n.º 2

Archivo: freeselect.c Proyecto: jalkanen/ppt

///
/// ScanFill()
VOID
ScanFill( FRAME *frame )
{
    int cnt = frame->selection.nVertices;
    Point *pts = frame->selection.vertices;
    EdgePtr *edges, active;
    int scan, i;

    edges = pmalloc( sizeof(EdgePtr) * (frame->pix->height+1) );

    D(bug("ScanFill: allocating edges\n"));

    for( i = 0; i <= frame->pix->height; i++ ) {
        edges[i] = smalloc( sizeof(EdgeRec) );
        edges[i]->next = NULL;
    }

    active = smalloc( sizeof(EdgeRec) );
    active->next = NULL;

    BuildEdgeList( cnt, pts, edges );

    for( scan = 0; scan < frame->pix->height; scan++ ) {

        D(bug("    Line=%d\n",scan));

        D(bug("List: edges[%d]\n",scan));
        D(PrintList( "", edges[scan] ));

        BuildActiveList( scan, edges, active );

        // D(bug("List: edges[%d]\n",scan));
        // D(PrintList( "", edges[scan] ));

        D(PrintList( "active", active ));

        if( active->next ) {
            ROWPTR cp;

            cp = GetPixelRow( frame->selection.mask, scan, globxd );

            bzero( cp, frame->pix->bytes_per_row );

            FillScan( cp, scan, active );

            PutPixelRow( frame->selection.mask, scan, cp, globxd );

            UpdateActiveList( scan, active );
            ResortActiveList( active );
        }

    }

    D(bug("    ScanFill done\n"));

#if 1

    for( i = 0; i <= frame->pix->height; i++ ) {
        if( edges[i] ) {
            sfree( edges[i] );
        }
    }
#endif

#if 1
    if( active ) {
        EdgePtr e,ep;

        D(PrintList( "active", active ));

        ep = active->next;

        while( ep ) {
            e = ep->next;
            sfree( ep );
            ep = e;
        }

        sfree( active );
    }
#endif

    pfree(edges);
}