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4a1419fefa
The patch in #469 was buggy for images where the start of a row matched
the end of the previous row. We don't re-issue the `setbgfg` ANSI codes
when we think that the color hasn't changed. But by sending an `\e[0m`
sequence at the end of the line without updating `bg` or `fg`, we
desynced `bg` and `fg` from the actual ANSI state. Now, we simply follow
that line-terminating `\e[0m` with another `setbgfg` call.
This bug was visible in images with a constant-color matte border:
![Screenshot of `printimage` output before and after this commit when
run on `lemurs.png` and `lemursborder.png`, where `lemursborder.png` has
a thick blue border around the outside of the image. Both versions look
fine for `lemurs.png`. For `lemursborder.png`, the "before" version has
a chess board pattern for the left border (except for the first row) and
the bottom border. The "after" version looks correct.][ss]
[ss]: https://user-images.githubusercontent.com/4317806/178120511-c1b89348-2376-4bf2-a2d3-8723d2663bd4.png
Fixes:
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.. | ||
bmp | ||
core | ||
mpeg | ||
scale | ||
tty | ||
dsp.mk |