media: vivid: fix wrong sizeimage value for mplane

In several places a division by fmt->vdownsampling[p] was
missing in the sizeimage[p] calculation, causing incorrect
behavior for multiplanar formats were some planes are smaller
than the first plane.

Found by new v4l2-compliance tests.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/test-drivers/vivid/vivid-vid-cap.c

@@ -106,8 +106,9 @@ static int vid_cap_queue_setup(struct vb2_queue *vq,
 		if (*nplanes != buffers)
 			return -EINVAL;
 		for (p = 0; p < buffers; p++) {
-			if (sizes[p] < tpg_g_line_width(&dev->tpg, p) * h +
-						dev->fmt_cap->data_offset[p])
+			if (sizes[p] < tpg_g_line_width(&dev->tpg, p) * h /
+					dev->fmt_cap->vdownsampling[p] +
+					dev->fmt_cap->data_offset[p])
 				return -EINVAL;
 		}
 	} else {

drivers/media/test-drivers/vivid/vivid-vid-out.c

@@ -63,14 +63,16 @@ static int vid_out_queue_setup(struct vb2_queue *vq,
 		if (sizes[0] < size)
 			return -EINVAL;
 		for (p = 1; p < planes; p++) {
-			if (sizes[p] < dev->bytesperline_out[p] * h +
-				       vfmt->data_offset[p])
+			if (sizes[p] < dev->bytesperline_out[p] * h /
+					vfmt->vdownsampling[p] +
+					vfmt->data_offset[p])
 				return -EINVAL;
 		}
 	} else {
 		for (p = 0; p < planes; p++)
-			sizes[p] = p ? dev->bytesperline_out[p] * h +
-				       vfmt->data_offset[p] : size;
+			sizes[p] = p ? dev->bytesperline_out[p] * h /
+					vfmt->vdownsampling[p] +
+					vfmt->data_offset[p] : size;
 	}
 
 	*nplanes = planes;
@@ -124,7 +126,7 @@ static int vid_out_buf_prepare(struct vb2_buffer *vb)
 
 	for (p = 0; p < planes; p++) {
 		if (p)
-			size = dev->bytesperline_out[p] * h;
+			size = dev->bytesperline_out[p] * h / vfmt->vdownsampling[p];
 		size += vb->planes[p].data_offset;
 
 		if (vb2_get_plane_payload(vb, p) < size) {
@@ -331,8 +333,8 @@ int vivid_g_fmt_vid_out(struct file *file, void *priv,
 	for (p = 0; p < mp->num_planes; p++) {
 		mp->plane_fmt[p].bytesperline = dev->bytesperline_out[p];
 		mp->plane_fmt[p].sizeimage =
-			mp->plane_fmt[p].bytesperline * mp->height +
-			fmt->data_offset[p];
+			mp->plane_fmt[p].bytesperline * mp->height /
+			fmt->vdownsampling[p] + fmt->data_offset[p];
 	}
 	for (p = fmt->buffers; p < fmt->planes; p++) {
 		unsigned stride = dev->bytesperline_out[p];