From http://www.jwz.org/xscreensaver/xscreensaver-5.37.tar.gz

[xscreensaver] / hacks / flow.c

diff --git a/hacks/flow.c b/hacks/flow.c
index cfbc2b1e501d6d371332e57bc18887bfa216be9f..df9aadc366efc82d5866e3e75c18a3d0b2e849fc 100644 (file)
--- a/hacks/flow.c
+++ b/hacks/flow.c
@@ -102,6 +102,7 @@ static const char sccsid[] = "@(#)flow.c    5.00 2000/11/01 xlockmore";
                                        "*cycles:      10000 \n" \
                                        "*ncolors:     200   \n"
 
+# define release_flow 0
 # include "xlockmore.h"                /* in xscreensaver distribution */
 #else /* STANDALONE */
 # include "xlock.h"            /* in xlockmore distribution */
@@ -385,11 +386,12 @@ Iterate(dvector *p, dvector(*ODE)(Par par, double x, double y, double z),
 
 #define deallocate(p,t) if (p!=NULL) {free(p); p=(t*)NULL; }
 #define allocate(p,t,s) if ((p=(t*)malloc(sizeof(t)*s))==NULL)\
-{free_flow(sp);return;}
+{free_flow(mi);return;}
 
 static void
-free_flow(flowstruct *sp)
+free_flow(ModeInfo * mi)
 {
+       flowstruct *sp = &flows[MI_SCREEN(mi)];
        deallocate(sp->csegs, XSegment);
        deallocate(sp->cnsegs, int);
        deallocate(sp->old_segs, XSegment);
@@ -624,11 +626,7 @@ init_flow (ModeInfo * mi)
        flowstruct *sp;
        char       *name;
        
-       if (flows == NULL) {
-               if ((flows = (flowstruct *) calloc(MI_NUM_SCREENS(mi),
-                                                                                  sizeof (flowstruct))) == NULL)
-                       return;
-       }
+       MI_INIT (mi, flows, free_flow);
        sp = &flows[MI_SCREEN(mi)];
 
        sp->count2 = 0;
@@ -770,7 +768,6 @@ init_flow (ModeInfo * mi)
 
        sp->count2 = 0; /* Reset search */
 
-       free_flow(sp);
        sp->beecount = MI_COUNT(mi);
        if (!sp->beecount) {
                sp->beecount = 1; /* The camera requires 1 or more */
@@ -1206,19 +1203,6 @@ reshape_flow(ModeInfo * mi, int width, int height)
 }
 
 
-ENTRYPOINT void
-release_flow (ModeInfo * mi)
-{
-       if (flows != NULL) {
-               int         screen;
-
-               for (screen = 0; screen < MI_NUM_SCREENS(mi); screen++)
-                       free_flow(&flows[screen]);
-               free(flows);
-               flows = (flowstruct *) NULL;
-       }
-}
-
 ENTRYPOINT void
 refresh_flow (ModeInfo * mi)
 {