weston_10.0_aglcore: Add helper iterator to loop over debug scopes

This is helpful for users to list the available scopes, that other
compoments of libweston subscribed to.

Bug-AGL: SPEC-4593
Change-Id: Idec02efe997104f6af8164281eee0f2e46f996bf
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/28804
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
Tested-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>

2 files changed, 91 insertions, 1 deletions

diff --git a/meta-agl-core/recipes-graphics/wayland/weston/0001-libweston-weston-log-Add-an-iterator-for-going-over-.patch b/meta-agl-core/recipes-graphics/wayland/weston/0001-libweston-weston-log-Add-an-iterator-for-going-over-.patch
new file mode 100644
index 000000000..2263a2f60
--- /dev/null
+++ b/meta-agl-core/recipes-graphics/wayland/weston/0001-libweston-weston-log-Add-an-iterator-for-going-over-.patch
@@ -0,0 +1,89 @@
+From 82b05408e5ed8a8651a99b2dcc61a24c108d48f1 Mon Sep 17 00:00:00 2001
+From: Marius Vlad <marius.vlad@collabora.com>
+Date: Fri, 5 May 2023 11:33:40 +0300
+Subject: [PATCH] libweston/weston-log: Add an iterator for going over scope
+ list
+
+libweston users, with the weston-debug protocol doesn't have a way
+to list the debug scopes. This adds an iterator function to browse
+over the opaque weston_log_scope.
+
+This also adds two helper functions to get the scope name and its
+description.
+
+Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
+---
+ include/libweston/weston-log.h |  9 +++++++++
+ libweston/weston-log.c         | 36 ++++++++++++++++++++++++++++++++++
+ 2 files changed, 45 insertions(+)
+
+diff --git a/include/libweston/weston-log.h b/include/libweston/weston-log.h
+index aeb7768bf..846cdb089 100644
+--- a/include/libweston/weston-log.h
++++ b/include/libweston/weston-log.h
+@@ -131,9 +131,18 @@ struct weston_log_subscription *
+ weston_log_subscription_iterate(struct weston_log_scope *scope,
+ 				struct weston_log_subscription *sub_iter);
+ 
++struct weston_log_scope *
++weston_log_scopes_iterate(struct weston_compositor *compositor,
++			  struct weston_log_scope *nscope);
+ void
+ weston_log_flight_recorder_display_buffer(FILE *file);
+ 
++const char *
++weston_log_scope_get_description(struct weston_log_scope *scope);
++
++const char *
++weston_log_scope_get_name(struct weston_log_scope *scope);
++
+ #ifdef  __cplusplus
+ }
+ #endif
+diff --git a/libweston/weston-log.c b/libweston/weston-log.c
+index 276fde267..957c30c56 100644
+--- a/libweston/weston-log.c
++++ b/libweston/weston-log.c
+@@ -1009,3 +1009,39 @@ weston_log_subscription_iterate(struct weston_log_scope *scope,
+ 
+ 	return container_of(node, struct weston_log_subscription, source_link);
+ }
++
++WL_EXPORT struct weston_log_scope *
++weston_log_scopes_iterate(struct weston_compositor *compositor,
++			  struct weston_log_scope *nscope)
++{
++	struct weston_log_context *log_ctx = compositor->weston_log_ctx;
++	struct wl_list *list;
++	struct wl_list *node;
++
++	assert(log_ctx);
++
++	list = &log_ctx->scope_list;
++
++	if (nscope) {
++		node = nscope->compositor_link.next;
++	} else {
++		node = list->next;
++	}
++
++	if (node == list)
++		return NULL;
++
++	return container_of(node, struct weston_log_scope, compositor_link);
++}
++
++WL_EXPORT const char *
++weston_log_scope_get_name(struct weston_log_scope *scope)
++{
++	return scope->name;
++}
++
++WL_EXPORT const char *
++weston_log_scope_get_description(struct weston_log_scope *scope)
++{
++	return scope->desc;
++}
+-- 
+2.39.2
+
diff --git a/meta-agl-core/recipes-graphics/wayland/weston_10.0_aglcore.inc b/meta-agl-core/recipes-graphics/wayland/weston_10.0_aglcore.inc
index a77600776..546f5ec6f 100644
--- a/meta-agl-core/recipes-graphics/wayland/weston_10.0_aglcore.inc
+++ b/meta-agl-core/recipes-graphics/wayland/weston_10.0_aglcore.inc
@@ -8,7 +8,8 @@ PACKAGECONFIG:append = "${@bb.utils.contains('AGL_FEATURES', 'waltham-remoting',
 
 SRC_URI:append = "file://0001-libweston-Send-name-description-update-wl_output-to-.patch \
 		  file://0001-libweston-desktop-xdg-shell-Add-tiled-orientation-st.patch \
-		  file://0001-simple-touch-Add-maximized-fullscreen-states.patch"
+		  file://0001-simple-touch-Add-maximized-fullscreen-states.patch \
+		  file://0001-libweston-weston-log-Add-an-iterator-for-going-over-.patch"
 
 # seat management is only for waltham-transmitter-plugin
 SRC_URI:append = "${@bb.utils.contains('AGL_FEATURES', 'waltham-remoting', ' file://0001-libweston-Migrate-weston_seat_init-release-to-public.patch', '', d)}"