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[rendercore] walk sprixel lists for detritus #2318

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nick black 2021-11-14 05:13:42 -05:00
parent 17788477fc
commit 808196ecf7
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1 changed files with 16 additions and 8 deletions
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18
src/lib/render.c
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@ -910,16 +910,24 @@ track_sprixel_metadata(notcurses* nc, const sprixel* s){
// graphics are not yet visible, and they have not moved.
static int64_t
clean_sprixels(notcurses* nc, ncpile* p, fbuf* f, int scrolls){
// if we were the last pile rendered, we don't need worry about existing
// sprixels; clear out that metadata list.
if(p == nc->rstate.last_pile){
// we first need handle those sprixels which are already present on the
// display. if they're in the current list, dispose of the metadata copy.
// otherwise, add them to the sprixel cache list in state SPRIXEL_HIDE.
sprixel* s;
while( (s = nc->rstate.sprixels_last_drawn) ){
nc->rstate.sprixels_last_drawn = s->next;
free(s); // just metadata; don't use sprixel_free()
// go through the sprixel to-draw list, and see if we're present there
const sprixel* cand;
for(cand = p->sprixelcache ; cand ; cand = cand->next){
if(cand->meta.id == s->meta.id){ // sweet, free it up
free(s);
break;
}
}
if(cand == NULL){ // no match, add to to-draw list for clearing
fprintf(stderr, "NEED TO CLEAR %u\n", s->meta.id);
}
}
sprixel* s;
sprixel** parent = &p->sprixelcache;
int64_t bytesemitted = 0;
while( (s = *parent) ){