From 2796ae81d0be04df161cffdf447c2d0e5ec895e2 Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Tue, 12 Mar 2019 18:30:08 +0000
Subject: [PATCH] Fix HPA in origin mode.

---
 input.c        |  4 ++--
 screen-write.c | 10 +++++-----
 tmux.h         |  2 +-
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/input.c b/input.c
index 0503c52a..dcfb6772 100644
--- a/input.c
+++ b/input.c
@@ -1447,7 +1447,7 @@ input_csi_dispatch(struct input_ctx *ictx)
 	case INPUT_CSI_HPA:
 		n = input_get(ictx, 0, 1, 1);
 		if (n != -1)
-			screen_write_cursormove(sctx, n - 1, s->cy);
+			screen_write_cursormove(sctx, n - 1, -1);
 		break;
 	case INPUT_CSI_ICH:
 		n = input_get(ictx, 0, 1, 1);
@@ -1519,7 +1519,7 @@ input_csi_dispatch(struct input_ctx *ictx)
 	case INPUT_CSI_VPA:
 		n = input_get(ictx, 0, 1, 1);
 		if (n != -1)
-			screen_write_cursormove(sctx, s->cx, n - 1);
+			screen_write_cursormove(sctx, -1, n - 1);
 		break;
 	case INPUT_CSI_DECSCUSR:
 		n = input_get(ictx, 0, 0, 0);
diff --git a/screen-write.c b/screen-write.c
index a6e78f42..c9cba2bd 100644
--- a/screen-write.c
+++ b/screen-write.c
@@ -1034,20 +1034,20 @@ screen_write_clearstartofline(struct screen_write_ctx *ctx, u_int bg)
 
 /* Move cursor to px,py. */
 void
-screen_write_cursormove(struct screen_write_ctx *ctx, u_int px, u_int py)
+screen_write_cursormove(struct screen_write_ctx *ctx, int px, int py)
 {
 	struct screen	*s = ctx->s;
 
-	if (s->mode & MODE_ORIGIN) {
-		if (py > s->rlower - s->rupper)
+	if (py != -1 && (s->mode & MODE_ORIGIN)) {
+		if ((u_int)py > s->rlower - s->rupper)
 			py = s->rlower;
 		else
 			py += s->rupper;
 	}
 
-	if (px > screen_size_x(s) - 1)
+	if (px != -1 && (u_int)px > screen_size_x(s) - 1)
 		px = screen_size_x(s) - 1;
-	if (py > screen_size_y(s) - 1)
+	if (py != -1 && (u_int)py > screen_size_y(s) - 1)
 		py = screen_size_y(s) - 1;
 
 	screen_write_set_cursor(ctx, px, py);
diff --git a/tmux.h b/tmux.h
index beb862dd..6a94524c 100644
--- a/tmux.h
+++ b/tmux.h
@@ -2100,7 +2100,7 @@ void	 screen_write_deleteline(struct screen_write_ctx *, u_int, u_int);
 void	 screen_write_clearline(struct screen_write_ctx *, u_int);
 void	 screen_write_clearendofline(struct screen_write_ctx *, u_int);
 void	 screen_write_clearstartofline(struct screen_write_ctx *, u_int);
-void	 screen_write_cursormove(struct screen_write_ctx *, u_int, u_int);
+void	 screen_write_cursormove(struct screen_write_ctx *, int, int);
 void	 screen_write_reverseindex(struct screen_write_ctx *, u_int);
 void	 screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
 void	 screen_write_linefeed(struct screen_write_ctx *, int, u_int);