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video: Fix line padding calculation for 16 and 24 BPP bitmaps 

Each row in the pixel array in the bitmap file is padded
if necessary so the row size is always a multiple of 4 bytes.
In current code the complement of row size to a multiple of
4 bytes is further unnecessarily multiplied by the pixel size.
This results in incorrect displaying of bitmaps having row size
that is not a multiple of 4 bytes. Fix this by removing
the unnecessary multiplication.

Tested with 24BPP bitmap and XRGB32 display.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
This commit is contained in:
Sylwester Nawrocki 2020-12-01 12:30:50 +01:00 committed by Anatolij Gustschin
parent 131c224168
commit 38e18d6392
1 changed files with 2 additions and 2 deletions
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4
drivers/video/video_bmp.c
View File

@ -328,7 +328,7 @@ int video_bmp_display(struct udevice *dev, ulong bmp_image, int x, int y,
for (j = 0; j < width; j++)
fb_put_word(&fb, &bmap);
bmap += (padded_width - width) * 2;
bmap += (padded_width - width);
fb -= width * 2 + priv->line_length;
}
break;
@ -352,7 +352,7 @@ int video_bmp_display(struct udevice *dev, ulong bmp_image, int x, int y,
}
}
fb -= priv->line_length + width * (bpix / 8);
bmap += (padded_width - width) * 3;
bmap += (padded_width - width);
}
break;
#endif /* CONFIG_BMP_24BPP */