From 82a08d2032daf929b5b8b73812b1100946e9cbe2 Mon Sep 17 00:00:00 2001
From: Yay295 <Yay295@gmail.com>
Date: Thu, 16 Feb 2023 08:51:21 -0600
Subject: [PATCH] order ImageDraw.rounded_rectangle() points

---
 Tests/test_imagedraw.py | 16 ++++++++++++++++
 src/PIL/ImageDraw.py    |  1 +
 2 files changed, 17 insertions(+)

diff --git a/Tests/test_imagedraw.py b/Tests/test_imagedraw.py
index d4723c924..b3f03898b 100644
--- a/Tests/test_imagedraw.py
+++ b/Tests/test_imagedraw.py
@@ -735,6 +735,22 @@ def test_rounded_rectangle(xy):
     assert_image_equal_tofile(im, "Tests/images/imagedraw_rounded_rectangle.png")
 
 
+@pytest.mark.parametrize(
+    "xy",
+    ((10, 20, 190, 180), (190, 20, 10, 180), (190, 180, 10, 20), (10, 180, 190, 20)),
+)
+def test_rounded_rectangle_unordered_points(xy):
+    # Arrange
+    im = Image.new("RGB", (200, 200))
+    draw = ImageDraw.Draw(im)
+
+    # Act
+    draw.rounded_rectangle(xy, 30, fill="red", outline="green", width=5)
+
+    # Assert
+    assert_image_equal_tofile(im, "Tests/images/imagedraw_rounded_rectangle.png")
+
+
 @pytest.mark.parametrize(
     "xy, radius, type",
     [
diff --git a/src/PIL/ImageDraw.py b/src/PIL/ImageDraw.py
index 163828d31..733608f6b 100644
--- a/src/PIL/ImageDraw.py
+++ b/src/PIL/ImageDraw.py
@@ -301,6 +301,7 @@ class ImageDraw:
             (x0, y0), (x1, y1) = xy
         else:
             x0, y0, x1, y1 = xy
+        x0, y0, x1, y1 = min(x0, x1), min(y0, y1), max(x0, x1), max(y0, y1)
 
         d = radius * 2