#include <u.h>#include <libc.h>#include <draw.h>#include <memdraw.h>#include <memlayer.h> intmemlsetrefresh(Memimage *i, Refreshfn fn, void *ptr){ Memlayer *l; l = i->layer; if(l->refreshfn!=nil && fn!=nil){ /* just change functions */ l->refreshfn = fn; l->refreshptr = ptr; return 1; } if(l->refreshfn == nil){ /* is using backup image; just free it */ freememimage(l->save); l->save = nil; l->refreshfn = fn; l->refreshptr = ptr; return 1; } l->save = allocmemimage(i->r, i->chan); if(l->save == nil) return 0; /* easiest way is just to update the entire save area */ l->refreshfn(i, i->r, l->refreshptr); l->refreshfn = nil; l->refreshptr = nil; return 1;}
#include <u.h>
#include <libc.h>
#include <draw.h>
#include <memdraw.h>
#include <memlayer.h>
int
memlsetrefresh(Memimage *i, Refreshfn fn, void *ptr)
{
Memlayer *l;
l = i->layer;
if(l->refreshfn!=nil && fn!=nil){ /* just change functions */
l->refreshfn = fn;
l->refreshptr = ptr;
return 1;
}
if(l->refreshfn == nil){ /* is using backup image; just free it */
freememimage(l->save);
l->save = nil;
l->refreshfn = fn;
l->refreshptr = ptr;
return 1;
}
l->save = allocmemimage(i->r, i->chan);
if(l->save == nil)
return 0;
/* easiest way is just to update the entire save area */
l->refreshfn(i, i->r, l->refreshptr);
l->refreshfn = nil;
l->refreshptr = nil;
return 1;
}