Fix reading 4-bit data #4454
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Fix reading 4-bit data #4454
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deshipu
reviewed
Mar 21, 2021
shared-module/bitmaptools/__init__.c
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| int bit_offset = 4 * (reverse_pixels_in_element ? (1 - x % 2) : x % 2); | ||
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| value = (rowdata8[byte_offset] >> bit_offset) & 7; | ||
| value = (rowdata8[byte_offset] >> bit_offset) & 15; |
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Would be more obvious if written as 0x0f.
FoamyGuy
approved these changes
Mar 21, 2021
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One action has been stuck in "upload artifacts" for 4 hours. Gonna merge without green. |
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Related to adafruit/Adafruit_CircuitPython_ImageLoad#47
An incorrect mask was being used when extracting 4-bit data from a file.