Fix #7: libpng warning on linux (ignoring bad filter type)

BoboTiG · Apr 22, 2016 · f9b7794 · f9b7794
1 parent 7eb0ffc
commit f9b7794
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/mss/helpers.py b/mss/helpers.py
@@ -99,8 +99,9 @@ def to_png(self, data, width, height, output):
             b = pack
             line = (width * 3 + 3) & -4
             padding = 0 if line % 8 == 0 else (line % 8) // 2
+            filter = b(b'>B', 0)
             scanlines = b''.join(
-                [b'0' + data[y * line:y * line + line - padding]
+                [filter + data[y * line:y * line + line - padding]
                  for y in range(height)])
 
             magic = b(b'>8B', 137, 80, 78, 71, 13, 10, 26, 10)