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/*
A* -------------------------------------------------------------------
B* This file contains source code for the PyMOL computer program
C* copyright 1998-2000 by Warren Lyford Delano of DeLano Scientific.
D* -------------------------------------------------------------------
E* It is unlawful to modify or remove this copyright notice.
F* -------------------------------------------------------------------
G* Please see the accompanying LICENSE file for further information.
H* -------------------------------------------------------------------
I* Additional authors of this source file include:
-*
-*
-*
Z* -------------------------------------------------------------------
*/
#include"os_predef.h"
#include"os_std.h"
#include"os_gl.h"
#include"OOMac.h"
#include"Feedback.h"
#include"Util.h"
#include"SculptCache.h"
#define CACHE_HASH_SIZE 65536
#define cache_hash(d,e,f,g) \
((((d) )&0x003F)|\
(((e+g)<< 6)&0x0FC0)|\
(((f-g)<<12)&0xF000))
static void SculptCacheCheck(PyMOLGlobals *G)
{
register CSculptCache *I = G->SculptCache;
if(!I->Hash) {
I->Hash = Alloc(int,CACHE_HASH_SIZE);
UtilZeroMem(I->Hash,CACHE_HASH_SIZE*sizeof(int));
}
}
int SculptCacheInit(PyMOLGlobals *G)
{
register CSculptCache *I=NULL;
if( (I=(G->SculptCache=Calloc(CSculptCache,1)))) {
I->Hash = NULL; /* don't allocate until we need it */
I->List = VLAlloc(SculptCacheEntry,16);
I->NCached=1;
return 1;
} else {
return 0;
}
}
void SculptCachePurge(PyMOLGlobals *G)
{
register CSculptCache *I=G->SculptCache;
if(!I->Hash) SculptCacheCheck(G);
I->NCached=1;
UtilZeroMem(I->Hash,CACHE_HASH_SIZE*sizeof(int));
}
void SculptCacheFree(PyMOLGlobals *G)
{
register CSculptCache *I=G->SculptCache;
if(!I->Hash) SculptCacheCheck(G);
FreeP(I->Hash);
VLAFreeP(I->List);
FreeP(G->SculptCache);
}
int SculptCacheQuery(PyMOLGlobals *G,int rest_type,int id0,int id1,int id2,int id3,float *value)
{
register CSculptCache *I=G->SculptCache;
int *v,i;
SculptCacheEntry *e;
int found = false;
if(!I->Hash) SculptCacheCheck(G);
v = I->Hash + cache_hash(id0,id1,id2,id3);
i = (*v);
while(i) {
e = I->List+i;
if((e->rest_type==rest_type)&&(e->id0==id0)&&(e->id1==id1)&&(e->id2==id2)&&(e->id3==id3)) {
found = true;
*value=e->value;
break;
}
i = e->next;
}
return(found);
}
void SculptCacheStore(PyMOLGlobals *G,int rest_type,int id0,int id1,int id2,int id3,float value)
{
register CSculptCache *I=G->SculptCache;
int *v,i;
SculptCacheEntry *e;
int found = false;
if(!I->Hash) SculptCacheCheck(G);
v = I->Hash + cache_hash(id0,id1,id2,id3);
i = (*v);
while(i) {
e = I->List+i;;
if((e->rest_type==rest_type)&&(e->id0==id0)&&(e->id1==id1)&&(e->id2==id2)&&(e->id3==id3)) {
e->value=value;
found = true;
break;
}
i = e->next;
}
if(!found) {
VLACheck(I->List,SculptCacheEntry,I->NCached);
v = I->Hash + cache_hash(id0,id1,id2,id3);
e = I->List + I->NCached;
e->next = *v;
*v=I->NCached; /* become new head of list */
e->rest_type=rest_type;
e->id0=id0;
e->id1=id1;
e->id2=id2;
e->id3=id3;
e->value=value;
I->NCached++;
}
}
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