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hw/display/artist: Fix draw_line() artefacts

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The draw_line() function left artefacts on the screen because it was using the
x/y variables which were incremented in the loop before. Fix it by using the
unmodified x1/x2 variables instead.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: qemu-stable@nongnu.org
Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Sven Schnelle 2022-01-23 16:47:47 +01:00 committed by Helge Deller
parent 3615cea471
commit d449eee3af
1 changed files with 3 additions and 2 deletions
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5
hw/display/artist.c
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@ -553,10 +553,11 @@ static void draw_line(ARTISTState *s,
}
x++;
} while (x <= x2 && (max_pix == -1 || --max_pix > 0));
if (c1)
artist_invalidate_lines(buf, x, dy+1);
artist_invalidate_lines(buf, x1, x2 - x1);
else
artist_invalidate_lines(buf, y, dx+1);
artist_invalidate_lines(buf, y1 > y2 ? y2 : y1, x2 - x1);
}
static void draw_line_pattern_start(ARTISTState *s)