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dm: video: correctly clean background in 16bit mode

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In 16 bit mode we have to copy two bytes per pixels repeatedly and not
four. Otherwise we will see a striped pattern.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Heinrich Schuchardt 2018-02-08 21:47:10 +01:00 committed by Anatolij Gustschin
parent 3aeb0cbe12
commit d7a75d3cd7
1 changed files with 14 additions and 2 deletions
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16
drivers/video/video-uclass.c
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@ -91,14 +91,26 @@ void video_clear(struct udevice *dev)
{
struct video_priv *priv = dev_get_uclass_priv(dev);
if (priv->bpix == VIDEO_BPP32) {
switch (priv->bpix) {
case VIDEO_BPP16: {
u16 *ppix = priv->fb;
u16 *end = priv->fb + priv->fb_size;
while (ppix < end)
*ppix++ = priv->colour_bg;
break;
}
case VIDEO_BPP32: {
u32 *ppix = priv->fb;
u32 *end = priv->fb + priv->fb_size;
while (ppix < end)
*ppix++ = priv->colour_bg;
} else {
break;
}
default:
memset(priv->fb, priv->colour_bg, priv->fb_size);
break;
}
}