1From 88a61ee8da70073c50f70b544ad51d8f80f36f29 Mon Sep 17 00:00:00 2001
2From: Jeffy Chen <jeffy.chen@rock-chips.com>
3Date: Thu, 30 Jun 2022 09:16:58 +0800
4Subject: [PATCH 73/79] backend-drm: Don't try to prepare non-cursor view in
5 renderer-only mode
6
7It would fail out in the later check anyway.
8
9Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
10---
11 libweston/backend-drm/state-propose.c | 15 +++++++++++++++
12 1 file changed, 15 insertions(+)
13
14diff --git a/libweston/backend-drm/state-propose.c b/libweston/backend-drm/state-propose.c
15index 48e6de2..961efc0 100644
16--- a/libweston/backend-drm/state-propose.c
17+++ b/libweston/backend-drm/state-propose.c
18@@ -695,6 +695,14 @@ dmabuf_feedback_maybe_update(struct drm_backend *b, struct weston_view *ev,
19 	return true;
20 }
21
22+static struct weston_layer *
23+get_view_layer(struct weston_view *view)
24+{
25+	if (view->parent_view)
26+		return get_view_layer(view->parent_view);
27+	return view->layer_link.layer;
28+}
29+
30 static struct drm_plane_state *
31 drm_output_prepare_plane_view(struct drm_output_state *state,
32 			      struct weston_view *ev,
33@@ -711,6 +719,7 @@ drm_output_prepare_plane_view(struct drm_output_state *state,
34 	struct drm_plane_zpos *p_zpos, *p_zpos_next;
35 	struct wl_list zpos_candidate_list;
36
37+	struct weston_layer *layer;
38 	struct weston_buffer *buffer;
39 	struct wl_shm_buffer *shmbuf;
40 	struct drm_fb *fb;
41@@ -721,6 +730,12 @@ drm_output_prepare_plane_view(struct drm_output_state *state,
42 	if (!weston_view_has_valid_buffer(ev))
43 		return ps;
44
45+	/* only allow cursor in renderer-only mode */
46+	layer = get_view_layer(ev);
47+	if (mode == DRM_OUTPUT_PROPOSE_STATE_RENDERER_ONLY &&
48+	    layer->position != WESTON_LAYER_POSITION_CURSOR)
49+		return NULL;
50+
51 	buffer = ev->surface->buffer_ref.buffer;
52 	shmbuf = wl_shm_buffer_get(buffer->resource);
53 	fb = drm_fb_get_from_view(state, ev, try_view_on_plane_failure_reasons);
54--
552.20.1
56
57