From b3c91ca4dda192993497bf9e47c9e84083bcc3d9 Mon Sep 17 00:00:00 2001
From: nick black <dankamongmen@gmail.com>
Date: Sun, 18 Apr 2021 16:09:26 -0400
Subject: [PATCH] sprixel_state: deal with margins #1561

---
 src/lib/internal.h | 2 +-
 src/lib/kitty.c    | 4 +++-
 src/lib/render.c   | 4 ++--
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/lib/internal.h b/src/lib/internal.h
index 49cce271b..8d2a5cc15 100644
--- a/src/lib/internal.h
+++ b/src/lib/internal.h
@@ -993,11 +993,11 @@ sprixel_state(const sprixel* s, int y, int x){
   const ncplane* stdn = notcurses_stdplane_const(ncplane_notcurses_const(s->n));
   int localy = y - (s->n->absy - stdn->absy);
   int localx = x - (s->n->absx - stdn->absx);
+//fprintf(stderr, "TAM %d at %d/%d (%d/%d)\n", s->n->tacache[localy * s->dimx + localx], localy, localx, y, x);
   assert(localy >= 0);
   assert(localy < s->dimy);
   assert(localx >= 0);
   assert(localx < s->dimx);
-//fprintf(stderr, "TAM %d at %d/%d (%d/%d)\n", s->n->tacache[localy * s->dimx + localx], localy, localx, y, x);
   return s->n->tacache[localy * s->dimx + localx];
 }
 
diff --git a/src/lib/kitty.c b/src/lib/kitty.c
index 8f8bd61bf..f6c32274b 100644
--- a/src/lib/kitty.c
+++ b/src/lib/kitty.c
@@ -381,8 +381,10 @@ int kitty_delete(const notcurses* nc, const ncpile* p, FILE* out, sprixel* s){
     for(int xx = s->movedfromx ; xx < s->movedfromx + s->dimx && xx < p->dimx ; ++xx){
       struct crender *r = &p->crender[yy * p->dimx + xx];
       if(s->n){
+        const ncplane* stdn = notcurses_stdplane_const(nc);
 //fprintf(stderr, "CHECKING %d/%d\n", yy - s->movedfromy, xx - s->movedfromx);
-        sprixcell_e state = sprixel_state(s, yy, xx);
+        sprixcell_e state = sprixel_state(s, yy - s->movedfromy + s->n->absy - stdn->absy,
+                                             xx - s->movedfromx + s->n->absx - stdn->absx);
         if(state != SPRIXCELL_OPAQUE){
 //fprintf(stderr, "DAMAGING %d/%d!\n", yy, xx);
           r->s.damaged = 1;
diff --git a/src/lib/render.c b/src/lib/render.c
index 8613dc625..b859f1733 100644
--- a/src/lib/render.c
+++ b/src/lib/render.c
@@ -1022,8 +1022,8 @@ rasterize_core(notcurses* nc, const ncpile* p, FILE* out, unsigned phase){
         // this is used to invalidate the sprixel in the first text round,
         // which is only necessary for sixel, not kitty.
         if(rvec[damageidx].sprixel
-            && sprixel_state(rvec[damageidx].sprixel, y, x) != SPRIXCELL_TRANSPARENT
-            && sprixel_state(rvec[damageidx].sprixel, y, x) != SPRIXCELL_ANNIHILATED
+            && sprixel_state(rvec[damageidx].sprixel, y - nc->stdplane->absy, x - nc->stdplane->absx) != SPRIXCELL_TRANSPARENT
+            && sprixel_state(rvec[damageidx].sprixel, y - nc->stdplane->absy, x - nc->stdplane->absx) != SPRIXCELL_ANNIHILATED
             && !rvec[damageidx].s.p_beats_sprixel
             && !sprixel_kitty_p(&nc->tcache)){
 //fprintf(stderr, "INVALIDATING at %d/%d (%u)\n", y, x, rvec[damageidx].s.p_beats_sprixel);