Added support for reading BMP images with RLE4 compression #6674
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| assert_image_similar_tofile(im, "Tests/images/hopper_4bit.bmp", 12) | ||
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| with Image.open("Tests/images/bmp/g/pal4rle.bmp") as im: | ||
| assert_image_similar_tofile(im, "Tests/images/bmp/g/pal4.bmp", 12) |
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Is there any significant difference between hopper_rle4.bmp and pal4rle.bmp?
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I've removed hopper_rle4.bmp, since the other test image seems sufficient.
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I've created npjg#1 with a documentation correction, and to simplify the code by combining the two BMP RLE decoders into one. |
src/PIL/BmpImagePlugin.py
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| x = len(data) % self.state.xsize | ||
| else: | ||
| # absolute mode (2 pixels per byte) | ||
| total_bytes_to_read = byte[0] // 2 |
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What does this "2" comment mean? If it means this value is always 2, that won't work, because this is already checked for on line 367.
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It's not a comment. Commenting in Python is #. This is floor division.
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ah, right. There's even a real comment right above that and I didn't notice...
radarhere
changed the title
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I was gone for a few days. Looks good, thanks for merging! |
It's an old format, but I still see it a good bit when examining old software.