[2/2] drm/rockchip: vop: correct the source size of uv scale factor setting
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Message ID 1465199926-20991-1-git-send-email-ykk@rock-chips.com
State New
Headers show

Commit Message

Yakir Yang June 6, 2016, 7:58 a.m. UTC
From: Mark Yao <mark.yao@rock-chips.com>

When the input color format is YUV, we need to do some external scale
for CBCR. Like,
 * In YUV420 data format:
     cbcr_xscale = dst_w / src_w * 2;
     cbcr_yscale = dst_h / src_h * 2;
 * In YUV422 data format:
     cbcr_xscale = dst_w / src_w * 2;
     cbcr_yscale = dst_h / src_h;
 * In YUV444 data format
     cbcr_xscale = dst_w / src_w;
     cbcr_yscale = dst_h / src_h;

Signed-off-by: Yakir Yang <ykk@rock-chips.com>
---
 drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

yao mark June 7, 2016, 12:57 a.m. UTC | #1
On 2016年06月06日 15:58, Yakir Yang wrote:
> From: Mark Yao <mark.yao@rock-chips.com>
>
> When the input color format is YUV, we need to do some external scale
> for CBCR. Like,
>   * In YUV420 data format:
>       cbcr_xscale = dst_w / src_w * 2;
>       cbcr_yscale = dst_h / src_h * 2;
>   * In YUV422 data format:
>       cbcr_xscale = dst_w / src_w * 2;
>       cbcr_yscale = dst_h / src_h;
>   * In YUV444 data format
>       cbcr_xscale = dst_w / src_w;
>       cbcr_yscale = dst_h / src_h;
>
> Signed-off-by: Yakir Yang <ykk@rock-chips.com>
> ---
>   drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> index 1c4d5b5..b28cda7 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> @@ -324,9 +324,9 @@ static void scl_vop_cal_scl_fac(struct vop *vop, const struct vop_win_data *win,
>   			    scl_cal_scale2(src_h, dst_h));
>   		if (is_yuv) {
>   			VOP_SCL_SET(vop, win, scale_cbcr_x,
> -				    scl_cal_scale2(src_w, dst_w));
> +				    scl_cal_scale2(cbcr_src_w, dst_w));
>   			VOP_SCL_SET(vop, win, scale_cbcr_y,
> -				    scl_cal_scale2(src_h, dst_h));
> +				    scl_cal_scale2(cbcr_src_h, dst_h));
>   		}
>   		return;
>   	}
Thanks for this fix, Applied to my drm-fixes.

Patch
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diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 1c4d5b5..b28cda7 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -324,9 +324,9 @@  static void scl_vop_cal_scl_fac(struct vop *vop, const struct vop_win_data *win,
 			    scl_cal_scale2(src_h, dst_h));
 		if (is_yuv) {
 			VOP_SCL_SET(vop, win, scale_cbcr_x,
-				    scl_cal_scale2(src_w, dst_w));
+				    scl_cal_scale2(cbcr_src_w, dst_w));
 			VOP_SCL_SET(vop, win, scale_cbcr_y,
-				    scl_cal_scale2(src_h, dst_h));
+				    scl_cal_scale2(cbcr_src_h, dst_h));
 		}
 		return;
 	}