move prev,line swap to after putting data into bitmap

adafruit · Jan 14, 2025 · 519d5f7 · 519d5f7
1 parent 295e799
commit 519d5f7
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/adafruit_imageload/png.py b/adafruit_imageload/png.py
@@ -168,7 +168,6 @@ def load(  # noqa: PLR0912, PLR0915, Too many branches, Too many statements
                 src += 1
         else:
             raise ValueError("Wrong filter.")
-        prev, line = line, prev
         if mode in (0, 4):  # grayscale
             for x in range(width):
                 c = line[x * unit]
@@ -180,5 +179,8 @@ def load(  # noqa: PLR0912, PLR0915, Too many branches, Too many statements
                 )
         else:
             raise ValueError("Unsupported color mode.")
+
+        prev, line = line, prev
+
     pal = displayio.ColorConverter(input_colorspace=displayio.Colorspace.RGB565)
     return bmp, pal