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video: bmp: Fix video_display_rle8_bitmap()

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In case the BMP size is bigger than the frame buffer, don't use
the BMP's width and height in video_display_rle8_bitmap, but the
one's checked in video_bmp_display() as parameters to
video_display_rle8_bitmap().

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
CC: Yannick Fertré <yannick.fertre@st.com>
This commit is contained in:
Patrice Chotard 2019-11-20 14:11:16 +01:00 committed by Anatolij Gustschin
parent 1ebf2855b4
commit ca2c6945b9
1 changed files with 3 additions and 5 deletions
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8
drivers/video/video_bmp.c
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@ -40,18 +40,16 @@ static void draw_encoded_bitmap(ushort **fbp, ushort col, int cnt)
static void video_display_rle8_bitmap(struct udevice *dev,
struct bmp_image *bmp, ushort *cmap,
uchar *fb, int x_off, int y_off)
uchar *fb, int x_off, int y_off,
ulong width, ulong height)
{
struct video_priv *priv = dev_get_uclass_priv(dev);
uchar *bmap;
ulong width, height;
ulong cnt, runlen;
int x, y;
int decode = 1;
debug("%s\n", __func__);
width = get_unaligned_le32(&bmp->header.width);
height = get_unaligned_le32(&bmp->header.height);
bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
x = 0;
@ -277,7 +275,7 @@ int video_bmp_display(struct udevice *dev, ulong bmp_image, int x, int y,
return -EPROTONOSUPPORT;
}
video_display_rle8_bitmap(dev, bmp, cmap_base, fb, x,
y);
y, width, height);
break;
}
#endif