Commit ee8662fc authored Jun 06, 2016 by Mark Yao

drm/rockchip: vop: correct the source size of uv scale factor setting



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>

parent 7a1ff36c

drivers/gpu/drm/rockchip/rockchip_drm_vop.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -328,9 +328,9 @@ 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;
		}