From 977b2498e8254e629db7f8b2b35ced1d3e59024a Mon Sep 17 00:00:00 2001
From: Stefan Haun <tux@netz39.de>
Date: Sat, 24 Aug 2019 16:13:40 +0200
Subject: [PATCH] gfx: Fix line drawing algorithm
Lines have been one pixel too short.
---
lib/gfx/gfx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/gfx/gfx.c b/lib/gfx/gfx.c
index dd92ecdc..9d27d2a5 100644
--- a/lib/gfx/gfx.c
+++ b/lib/gfx/gfx.c
@@ -198,7 +198,7 @@ static void plot_line_low(
int d = 2 * dy - dx;
int y = y0;
- for (int x = x0; x < x1; x++) {
+ for (int x = x0; x <= x1; x++) {
if (t > 1) {
gfx_circle_fill(reg, x, y, t, c);
} else {
@@ -231,7 +231,7 @@ static void plot_line_high(
int d = 2 * dx - dy;
int x = x0;
- for (int y = y0; y < y1; y++) {
+ for (int y = y0; y <= y1; y++) {
if (t > 1) {
gfx_circle_fill(reg, x, y, t, c);
} else {
--
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