From dabfe159dea502a51617d90785343cee18cf408b Mon Sep 17 00:00:00 2001
From: Dominique Martinet <asmadeus@codewreck.org>
Date: Tue, 19 Dec 2017 19:55:18 +0100
Subject: [PATCH] wl backend: add wlr_output_is_wl

---
 backend/wayland/output.c      | 4 ++++
 include/backend/wayland.h     | 1 -
 include/wlr/backend/wayland.h | 8 ++++++++
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/backend/wayland/output.c b/backend/wayland/output.c
index d841ec49..d76f6366 100644
--- a/backend/wayland/output.c
+++ b/backend/wayland/output.c
@@ -205,6 +205,10 @@ static struct wlr_output_impl output_impl = {
 	.move_cursor = wlr_wl_output_move_cursor,
 };
 
+bool wlr_output_is_wl(struct wlr_output *wlr_output) {
+	return wlr_output->impl == &output_impl;
+}
+
 static void xdg_surface_handle_configure(void *data, struct zxdg_surface_v6 *xdg_surface,
 		uint32_t serial) {
 	struct wlr_wl_backend_output *output = data;
diff --git a/include/backend/wayland.h b/include/backend/wayland.h
index 41cd21c8..5d30745e 100644
--- a/include/backend/wayland.h
+++ b/include/backend/wayland.h
@@ -8,7 +8,6 @@
 #include <wlr/render/egl.h>
 #include <wlr/backend/wayland.h>
 #include <wlr/types/wlr_box.h>
-#include <wlr/types/wlr_output.h>
 #include <wlr/types/wlr_input_device.h>
 #include <wayland-util.h>
 
diff --git a/include/wlr/backend/wayland.h b/include/wlr/backend/wayland.h
index 43a0b72e..bed03f51 100644
--- a/include/wlr/backend/wayland.h
+++ b/include/wlr/backend/wayland.h
@@ -4,6 +4,7 @@
 #include <wayland-client.h>
 #include <wayland-server.h>
 #include <wlr/backend.h>
+#include <wlr/types/wlr_output.h>
 #include <stdbool.h>
 
 /**
@@ -11,6 +12,7 @@
  * you must use wlr_wl_output_create to add them.
  */
 struct wlr_backend *wlr_wl_backend_create(struct wl_display *display);
+
 /**
  * Adds a new output to this backend. You may remove outputs by destroying them.
  * Note that if called before initializing the backend, this will return NULL
@@ -18,9 +20,15 @@ struct wlr_backend *wlr_wl_backend_create(struct wl_display *display);
  * the output_add signal).
  */
 struct wlr_output *wlr_wl_output_create(struct wlr_backend *backend);
+
 /**
  * True if the given backend is a wlr_wl_backend.
  */
 bool wlr_backend_is_wl(struct wlr_backend *backend);
 
+/**
+ * True if the given output is a wlr_wl_backend_output.
+ */
+bool wlr_output_is_wl(struct wlr_output *output);
+
 #endif