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authorHeinrich Schuchardt <xypron.glpk@gmx.de>2018-02-08 21:47:10 +0100
committerAnatolij Gustschin <agust@denx.de>2018-03-06 10:01:40 +0100
commitd7a75d3cd7cd7ce3665442e4e566b147c4c8602b (patch)
treeee2d1d2d8a7eee6a919b79e97a9132c808a877b9 /drivers/video/video-uclass.c
parent3aeb0cbe126849bd8aaa332a18b7ab2fe0699c02 (diff)
dm: video: correctly clean background in 16bit mode
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>
Diffstat (limited to 'drivers/video/video-uclass.c')
-rw-r--r--drivers/video/video-uclass.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/video/video-uclass.c b/drivers/video/video-uclass.c
index dcaceed42c..9a980ea3a1 100644
--- a/drivers/video/video-uclass.c
+++ b/drivers/video/video-uclass.c
@@ -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;
}
}