[3/6] drm/rockchip: vop: fix NV12 video display error
diff mbox

Message ID 1501494586-6984-1-git-send-email-mark.yao@rock-chips.com
State New
Headers show

Commit Message

yao mark July 31, 2017, 9:49 a.m. UTC
fixup the scale calculation formula on the case
src_height == (dst_height/2).

Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
---
 drivers/gpu/drm/rockchip/rockchip_drm_vop.h | 3 +++
 1 file changed, 3 insertions(+)

Comments

Sandy Huang Aug. 4, 2017, 12:56 a.m. UTC | #1
Hi mark,

在 2017/7/31 17:49, Mark Yao 写道:
> fixup the scale calculation formula on the case
> src_height == (dst_height/2).
> 
> Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
> ---
>   drivers/gpu/drm/rockchip/rockchip_drm_vop.h | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
> index af1091f..56bbd2e 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
> @@ -299,6 +299,9 @@ static inline uint16_t scl_get_bili_dn_vskip(int src_h, int dst_h,
>   
>   	act_height = (src_h + vskiplines - 1) / vskiplines;
>   
> +	if (act_height == dst_h)
> +		return GET_SCL_FT_BILI_DN(src_h, dst_h) / vskiplines;
> +
>   	return GET_SCL_FT_BILI_DN(act_height, dst_h);
>   }
>   
> 

Reviewed-by: Sandy huang <sandy.huang@rock-chips.com>

Patch
diff mbox

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
index af1091f..56bbd2e 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
@@ -299,6 +299,9 @@  static inline uint16_t scl_get_bili_dn_vskip(int src_h, int dst_h,
 
 	act_height = (src_h + vskiplines - 1) / vskiplines;
 
+	if (act_height == dst_h)
+		return GET_SCL_FT_BILI_DN(src_h, dst_h) / vskiplines;
+
 	return GET_SCL_FT_BILI_DN(act_height, dst_h);
 }