112 lines
2.2 KiB
C
112 lines
2.2 KiB
C
/********************************************************************/
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/* STRIPE: converting a polygonal model to triangle strips
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Francine Evans, 1996.
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SUNY @ Stony Brook
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Advisors: Steven Skiena and Amitabh Varshney
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*/
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/********************************************************************/
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/*---------------------------------------------------------------------*/
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/* STRIPE: free.c
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This file contains the code used to free the data structures.
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*/
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/*---------------------------------------------------------------------*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "polverts.h"
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ListHead *array[60];
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int id_array[60];
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ListHead *strips[1];
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ListHead *all_strips[100000]; /* Assume max 100000 strips */
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void ParseAndFreeList( ListHead *pListHead )
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{
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register int c,num;
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/* Freeing a linked list */
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num = NumOnList(pListHead);
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for (c = 0; c< num; c++)
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RemHead(pListHead);
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}
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void FreePolygonNode( PF_VERTS pfVerts)
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{
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/* Free a vertex node */
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if ( pfVerts->pPolygon )
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free( pfVerts->pPolygon );
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free( pfVerts );
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}
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void Free_Strips()
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{
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/* Free strips data structure */
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if (strips[0] == NULL)
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return;
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else
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ParseAndFreeList(strips[0]);
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}
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void FreeFaceNode( PF_FACES pfFaces)
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{
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/* Free face node */
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if ( pfFaces->pPolygon )
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free( pfFaces->pPolygon );
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free( pfFaces );
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}
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void FreeFaceTable(int nSize)
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{
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register int nIndex;
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for ( nIndex=0; nIndex < nSize; nIndex++ )
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{
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if ( PolFaces[nIndex] != NULL )
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ParseAndFreeList( PolFaces[nIndex] );
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}
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free( PolFaces );
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}
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void FreeEdgeTable(int nSize)
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{
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register int nIndex;
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for ( nIndex=0; nIndex < nSize; nIndex++ )
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{
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if ( PolEdges[nIndex] != NULL )
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ParseAndFreeList( PolEdges[nIndex] );
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}
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free( PolEdges );
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}
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void Free_All_Strips()
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{
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ListHead *pListHead;
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register int y;
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for (y =0; ; y++)
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{
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pListHead = all_strips[y];
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if (pListHead == NULL)
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return;
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else
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ParseAndFreeList(all_strips[y]);
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}
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}
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void End_Face_Struct(int numfaces)
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{
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FreeFaceTable(numfaces);
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}
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void End_Edge_Struct(int numverts)
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{
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FreeEdgeTable(numverts);
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}
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