python-pillow/Pillow
1
1
Fork 0
mirror of https://github.com/python-pillow/Pillow.git synced 2025-11-04 01:47:47 +03:00
Code Issues Packages Projects Releases Wiki Activity

Fix #6652: Handle translucent color used in RGB ImagePallete

Browse Source
This commit is contained in:
João S. O. Bueno 2022-10-09 11:47:24 -03:00
parent 243402e78e
commit f9a3178bb3
2 changed files with 15 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Tests/test_imagepalette.py
View File

@ -50,6 +50,15 @@ def test_getcolor():
palette.getcolor("unknown")
def test_getcolor_raises_on_incompatible_color():
palette = ImagePalette.ImagePalette(mode="RGB")
# Opaque RGBA colors should work
palette.getcolor((0, 0, 0, 255))
assert palette.getcolor((0, 0, 0)) == palette.getcolor((0, 0, 0, 255))
with pytest.raises(ValueError):
palette.getcolor((0, 0, 0, 128))
@pytest.mark.parametrize(
"index, palette",
[

8
src/PIL/ImagePalette.py
View File

@ -114,9 +114,13 @@ class ImagePalette:
if self.rawmode:
raise ValueError("palette contains raw palette data")
if isinstance(color, tuple):
if self.mode == "RGB":
if len(color) == 4 and color[3] == 255:
if self.mode == "RGB" and len(color) == 4:
if color[3] == 255:
color = color[:3]
else:
raise ValueError(
"RGB ImagePalette can't handle non-opaque RGBA colors"
)
elif self.mode == "RGBA":
if len(color) == 3:
color += (255,)