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d237f719b2
Fix the horizontal bit position when rotating a glyph by 180°. The
original code in rotate_ud() rounded the value in width up to a
multiple of 8, aka the bit pitch, and calculated the rotated pixel
from that value. The new code stores the glyph's pitch in bit_pitch,
but fails to update the rotated pixel's output accordingly. Simply
replacing the variable does this.
The bug can be reproduced by setting a font with an unaligned width,
such as sun12x22, like this:
setfont sun12x22
echo 2 > /sys/class/graphics/fbcon/rotate
Without the fix, the font looks distorted.
Fixes:
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|---|---|---|
| .. | ||
| font_6x8.c | ||
| font_6x10.c | ||
| font_6x11.c | ||
| font_7x14.c | ||
| font_8x8.c | ||
| font_8x16.c | ||
| font_10x18.c | ||
| font_acorn_8x8.c | ||
| font_mini_4x6.c | ||
| font_pearl_8x8.c | ||
| font_rotate.c | ||
| font_sun8x16.c | ||
| font_sun12x22.c | ||
| font_ter10x18.c | ||
| font_ter16x32.c | ||
| font.h | ||
| fonts.c | ||
| Kconfig | ||
| Makefile | ||