Merge pull request #47 from guzba/master

empty png encode error
2021-01-11 09:55:53 -08:00 · 2021-01-11 09:55:53 -08:00 · 9a4c45e282
parent 3e85e0cc43 b60f262587
commit 9a4c45e282
1 changed files with 5 additions and 0 deletions
--- a/src/pixie/fileformats/png.nim
+++ b/src/pixie/fileformats/png.nim
@ -492,6 +492,11 @@ proc encodePng*(

 proc encodePng*(image: Image): string =
  ## Encodes the image data into the PNG file format.
+  if image.data.len == 0:
+    raise newException(
+      PixieError,
+      "Image has no data (are height and width 0?)"
+    )
  cast[string](encodePng(
    image.width, image.height, 4, image.data[0].addr, image.data.len * 4
  ))