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fix: properly handle BDF font bitmap data format

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ChuckBuilds
2025-04-22 20:30:10 -05:00
parent 24e4ff7a6a
commit 9b09ddadd0
1 changed files with 7 additions and 4 deletions
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11
src/font_test_manager.py
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@@ -67,10 +67,13 @@ class FontTestManager:
for i in range(bitmap.rows): for i in range(bitmap.rows):
for j in range(bitmap.width): for j in range(bitmap.width):
try: try:
# Calculate the correct buffer index based on pitch # Get the byte containing the pixel
index = i * bitmap.pitch + j byte_index = i * bitmap.pitch + (j // 8)
if index < len(bitmap.buffer) and bitmap.buffer[index]: if byte_index < len(bitmap.buffer):
draw.point((x + j, y + i), fill=(255, 255, 255)) byte = bitmap.buffer[byte_index]
# Check if the specific bit is set
if byte & (1 << (7 - (j % 8))):
draw.point((x + j, y + i), fill=(255, 255, 255))
except IndexError: except IndexError:
self.logger.warning(f"Index out of range for char '{char}' at position ({i}, {j})") self.logger.warning(f"Index out of range for char '{char}' at position ({i}, {j})")
continue continue