From cee18f5da70e754469e71f37fba47f06e70c6299 Mon Sep 17 00:00:00 2001
From: nick black <dankamongmen@gmail.com>
Date: Sun, 8 Aug 2021 05:47:54 -0400
Subject: [PATCH] wire up fbcon_scroll #2010

---
 src/lib/linux.c    | 4 ++++
 src/lib/sprite.h   | 1 +
 src/lib/termdesc.c | 4 ++++
 src/lib/termdesc.h | 2 +-
 4 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/lib/linux.c b/src/lib/linux.c
index edefa59cb..1d1c8d33c 100644
--- a/src/lib/linux.c
+++ b/src/lib/linux.c
@@ -1,6 +1,10 @@
 #include "linux.h"
 #include "internal.h"
 
+void fbcon_scroll(tinfo* ti, int rows){
+  // FIXME
+}
+
 // auxvecs for framebuffer are 1B each for s->cellpxx * s->cellpxy elements,
 // and store the original alpha value.
 int fbcon_wipe(sprixel* s, int ycell, int xcell){
diff --git a/src/lib/sprite.h b/src/lib/sprite.h
index bd352f75f..da626436e 100644
--- a/src/lib/sprite.h
+++ b/src/lib/sprite.h
@@ -206,6 +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);
 
 typedef enum {
   // C=1 (disabling scrolling) was only introduced in 0.20.0, at the same
diff --git a/src/lib/termdesc.c b/src/lib/termdesc.c
index bf4f54def..7d8d237ed 100644
--- a/src/lib/termdesc.c
+++ b/src/lib/termdesc.c
@@ -58,6 +58,7 @@ setup_sixel_bitmaps(tinfo* ti, int fd, bool invert80){
   ti->pixel_remove = NULL;
   ti->pixel_move = NULL;
   ti->pixel_shutdown = sixel_shutdown;
+  ti->pixel_scroll = NULL;
   ti->pixel_rebuild = sixel_rebuild;
   ti->pixel_trans_auxvec = sixel_trans_auxvec;
   ti->sprixel_scale_height = 6;
@@ -76,6 +77,7 @@ setup_iterm_bitmaps(tinfo* ti, int fd){
   ti->pixel_move = NULL;
   ti->color_registers = 0;
   ti->pixel_scrub = sixel_scrub;
+  ti->pixel_scroll = NULL;
   ti->pixel_draw = iterm_draw;
   ti->pixel_wipe = iterm_wipe;
   ti->pixel_rebuild = iterm_rebuild;
@@ -94,6 +96,7 @@ setup_kitty_bitmaps(tinfo* ti, int fd, kitty_graphics_e level){
   ti->pixel_draw = kitty_draw;
   ti->pixel_commit = kitty_commit;
   ti->pixel_move = kitty_move;
+  ti->pixel_scroll = NULL;
   ti->pixel_shutdown = kitty_shutdown;
   ti->pixel_clear_all = kitty_clear_all;
   if(level == KITTY_ALWAYS_SCROLLS){
@@ -122,6 +125,7 @@ setup_fbcon_bitmaps(tinfo* ti, int fd){
   ti->pixel_rebuild = fbcon_rebuild;
   ti->pixel_wipe = fbcon_wipe;
   ti->pixel_draw = fbcon_draw;
+  ti->pixel_scroll = fbcon_scroll;
   ti->pixel_scrub = fbcon_scrub;
   ti->pixel_trans_auxvec = kitty_trans_auxvec;
   set_pixel_blitter(fbcon_blit);
diff --git a/src/lib/termdesc.h b/src/lib/termdesc.h
index cb466183c..7be60f883 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)(const struct tinfo*, int rows);
+  void (*pixel_scroll)(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