From 9246d03ebd50f8e0a18b3ccef5d929fa0749b406 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Sat, 25 Nov 2017 18:05:07 -0600
Subject: [PATCH] apps/graphics/pdcurses: Fix some display update calculations.

---
 examples/pdcurses/worm_main.c     | 13 ++++++++++---
 graphics/pdcurs34/nuttx/pdcdisp.c |  4 ++--
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/examples/pdcurses/worm_main.c b/examples/pdcurses/worm_main.c
index f3abdd598..7a1a2161d 100644
--- a/examples/pdcurses/worm_main.c
+++ b/examples/pdcurses/worm_main.c
@@ -610,8 +610,15 @@ int worm_main(int argc, char *argv[])
 {
   const struct options *op;
   struct worm *w;
-  short **ref, *ip;
-  int x, y, n, h, last, bottom, seed;
+  short **ref;
+  short *ip;
+  int x;
+  int y;
+  int n;
+  int h;
+  int last;
+  int bottom;
+  int seed;
 
   for (x = 1; x < argc; x++)
     {
@@ -683,7 +690,7 @@ int worm_main(int argc, char *argv[])
   curs_set(0);
 
   bottom = LINES - 1;
-  last = COLS - 1;
+  last   = COLS - 1;
 
 #ifdef A_COLOR
   if (has_colors())
diff --git a/graphics/pdcurs34/nuttx/pdcdisp.c b/graphics/pdcurs34/nuttx/pdcdisp.c
index 05c307377..68bc2b010 100644
--- a/graphics/pdcurs34/nuttx/pdcdisp.c
+++ b/graphics/pdcurs34/nuttx/pdcdisp.c
@@ -419,8 +419,8 @@ static void PDC_update(FAR struct pdc_fbstate_s *fbstate, int row, int col,
     {
       /* Setup the bounding rectangle */
 
-      rect.pt1.x = PDC_pixel_x(FAR fbstate, col);
-      rect.pt1.y = PDC_pixel_x(FAR fbstate, row);
+      rect.pt1.x = PDC_pixel_x(fbstate, col) + fbstate->hoffset;
+      rect.pt1.y = PDC_pixel_y(fbstate, row) + fbstate->voffset;
       rect.pt2.x = rect.pt1.x + nchars * fbstate->fwidth - 1;
       rect.pt2.y = rect.pt1.y + fbstate->fheight - 1;