[RFCv3 weston 07/15] compositor: add stub implementation of presentation interface

[Pekka Paalanen]

From: Pekka Paalanen <pekka.paalanen at collabora.co.uk>

You can bind to the global interface, and it delivers a fake clock id.
All requests on it raise an error.

Signed-off-by: Pekka Paalanen <pekka.paalanen at collabora.co.uk>
---
 src/compositor.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 69 insertions(+), 1 deletion(-)

diff --git a/src/compositor.c b/src/compositor.c
index 16b9b57..cd07a0d 100644
--- a/src/compositor.c
+++ b/src/compositor.c
@@ -1,7 +1,7 @@
 /*
  * Copyright © 2010-2011 Intel Corporation
  * Copyright © 2008-2011 Kristian Høgsberg
- * Copyright © 2012 Collabora, Ltd.
+ * Copyright © 2012-2014 Collabora, Ltd.
  *
  * Permission to use, copy, modify, distribute, and sell this software and
  * its documentation for any purpose is hereby granted without fee, provided
@@ -54,6 +54,7 @@
 
 #include "compositor.h"
 #include "scaler-server-protocol.h"
+#include "presentation_timing-server-protocol.h"
 #include "../shared/os-compatibility.h"
 #include "git-version.h"
 #include "version.h"
@@ -3475,6 +3476,69 @@ bind_scaler(struct wl_client *client,
 }
 
 static void
+presentation_destroy(struct wl_client *client, struct wl_resource *resource)
+{
+	wl_resource_destroy(resource);
+}
+
+static void
+presentation_feedback(struct wl_client *client,
+		      struct wl_resource *resource,
+		      struct wl_resource *surface,
+		      uint32_t callback)
+{
+	wl_resource_post_error(resource, WL_DISPLAY_ERROR_INVALID_METHOD,
+			       "presentation_feedback unimplemented");
+}
+
+static void
+presentation_queue(struct wl_client *client,
+		   struct wl_resource *resource,
+		   struct wl_resource *surface,
+		   uint32_t tv_sec_hi,
+		   uint32_t tv_sec_lo,
+		   uint32_t tv_nsec)
+{
+	wl_resource_post_error(resource, WL_DISPLAY_ERROR_INVALID_METHOD,
+			       "presentation_queue unimplemented");
+}
+
+static void
+presentation_discard_queue(struct wl_client *client,
+			   struct wl_resource *resource,
+			   struct wl_resource *surface)
+{
+	wl_resource_post_error(resource, WL_DISPLAY_ERROR_INVALID_METHOD,
+			       "presentation_discard_queue unimplemented");
+}
+
+static const struct presentation_interface presentation_implementation = {
+	presentation_destroy,
+	presentation_feedback,
+	presentation_queue,
+	presentation_discard_queue
+};
+
+static void
+bind_presentation(struct wl_client *client,
+		  void *data, uint32_t version, uint32_t id)
+{
+	struct weston_compositor *compositor = data;
+	struct wl_resource *resource;
+
+	resource = wl_resource_create(client, &presentation_interface,
+				      MIN(version, 1), id);
+	if (resource == NULL) {
+		wl_client_post_no_memory(client);
+		return;
+	}
+
+	wl_resource_set_implementation(resource, &presentation_implementation,
+				       compositor, NULL);
+	presentation_send_clock_id(resource, CLOCK_MONOTONIC);
+}
+
+static void
 compositor_bind(struct wl_client *client,
 		void *data, uint32_t version, uint32_t id)
 {
@@ -3568,6 +3632,10 @@ weston_compositor_init(struct weston_compositor *ec,
 			      ec, bind_scaler))
 		return -1;
 
+	if (!wl_global_create(ec->wl_display, &presentation_interface, 1,
+			      ec, bind_presentation))
+		return -1;
+
 	wl_list_init(&ec->view_list);
 	wl_list_init(&ec->plane_list);
 	wl_list_init(&ec->layer_list);
-- 
1.8.3.2