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Make qimage_to_array() work on big endian #288

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Merged
merged 3 commits into from
Apr 7, 2025
Merged

Make qimage_to_array() work on big endian #288

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fa81960
Make qimage_to_array() work on big endian
penguinpee Apr 6, 2025
5326318
style: [pre-commit.ci] auto fixes [...]
pre-commit-ci[bot] Apr 6, 2025
4b5887a
Update src/superqt/utils/_img_utils.py
Czaki Apr 6, 2025
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7 changes: 6 additions & 1 deletion src/superqt/utils/_img_utils.py
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import sys
from typing import TYPE_CHECKING

from qtpy.QtGui import QImage
Expand Down Expand Up @@ -37,4 +38,8 @@ def qimage_to_array(img: QImage) -> "np.ndarray":
arr = np.frombuffer(b, np.uint8).reshape(h, w, c)

# reverse channel colors for numpy
return arr.take([2, 1, 0, 3], axis=2)
# On big endian we need to specify a different order
if sys.byteorder == "big":
return arr.take([1, 2, 3, 0], axis=2) # pragma: no cover
else:
return arr.take([2, 1, 0, 3], axis=2)