From 57b54cda1d8a6b70f0e667a4b62e0ed60515029e Mon Sep 17 00:00:00 2001
From: nick black <dankamongmen@gmail.com>
Date: Sun, 8 Aug 2021 05:57:27 -0400
Subject: [PATCH] pass ncpile down through to pixel_scroll #2010

---
 src/lib/linux.c    | 9 +++++++--
 src/lib/render.c   | 2 +-
 src/lib/sprite.h   | 2 +-
 src/lib/termdesc.h | 2 +-
 4 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/src/lib/linux.c b/src/lib/linux.c
index 1d1c8d33c..f6a791150 100644
--- a/src/lib/linux.c
+++ b/src/lib/linux.c
@@ -1,8 +1,13 @@
 #include "linux.h"
 #include "internal.h"
 
-void fbcon_scroll(tinfo* ti, int rows){
-  // FIXME
+void fbcon_scroll(const struct ncpile* p, tinfo* ti, int rows){
+  if(ti->cellpixy){
+    return;
+  }
+  int totalrows = ti->cellpixy * p->dimy;
+  // FIXME iterate from 0.. dimy - rows, copy from |rows| down
+  // FIXME clear out bottom |rows| rows
 }
 
 // auxvecs for framebuffer are 1B each for s->cellpxx * s->cellpxy elements,
diff --git a/src/lib/render.c b/src/lib/render.c
index dbe6c5032..a90c7a77c 100644
--- a/src/lib/render.c
+++ b/src/lib/render.c
@@ -888,7 +888,7 @@ rasterize_scrolls(ncpile* p, fbuf* f){
     }
   }
   if(p->nc->tcache.pixel_scroll){
-    p->nc->tcache.pixel_scroll(&p->nc->tcache, p->scrolls);
+    p->nc->tcache.pixel_scroll(p, &p->nc->tcache, p->scrolls);
   }
   if(goto_location(p->nc, f, p->dimy, 0)){
     return -1;
diff --git a/src/lib/sprite.h b/src/lib/sprite.h
index da626436e..5b5140fa7 100644
--- a/src/lib/sprite.h
+++ b/src/lib/sprite.h
@@ -206,7 +206,7 @@ int fbcon_blit(struct ncplane* nc, int linesize, const void* data,
                int leny, int lenx, const struct blitterargs* bargs);
 int fbcon_draw(const tinfo* ti, const struct ncpile *p, sprixel* s,
                fbuf* f, int y, int x);
-void fbcon_scroll(tinfo* ti, int rows);
+void fbcon_scroll(const struct ncpile* p, tinfo* ti, int rows);
 
 typedef enum {
   // C=1 (disabling scrolling) was only introduced in 0.20.0, at the same
diff --git a/src/lib/termdesc.h b/src/lib/termdesc.h
index 7be60f883..1f0c4e330 100644
--- a/src/lib/termdesc.h
+++ b/src/lib/termdesc.h
@@ -164,7 +164,7 @@ typedef struct tinfo {
   // make a loaded graphic visible. only used with kitty.
   int (*pixel_commit)(fbuf* f, struct sprixel* s, unsigned noscroll);
   // scroll all graphics up. only used with fbcon.
-  void (*pixel_scroll)(struct tinfo*, int rows);
+  void (*pixel_scroll)(const struct ncpile* p, struct tinfo*, int rows);
   uint8_t* (*pixel_trans_auxvec)(const struct tinfo* ti); // create tranparent auxvec
   // sprixel parameters. there are several different sprixel protocols, of
   // which we support sixel and kitty. the kitty protocol is used based