linux-dmabuf-v1: introduce wlr_linux_dmabuf_v1_create()

Some compositors may want to use the linux-dmabuf-v1 implementation
with a completely custom renderer. Add a function to create the
global with a default feedback.

include/wlr/types/wlr_linux_dmabuf_v1.h

@@ -73,6 +73,15 @@ struct wlr_linux_dmabuf_v1 {
 	struct wl_listener display_destroy;
 };
 
+/**
+ * Create the linux-dmabuf-unstable-v1 global.
+ *
+ * Compositors using struct wlr_renderer should use
+ * wlr_linux_dmabuf_v1_create_with_renderer() instead.
+ */
+struct wlr_linux_dmabuf_v1 *wlr_linux_dmabuf_v1_create(struct wl_display *display,
+	uint32_t version, const struct wlr_linux_dmabuf_feedback_v1 *default_feedback);
+
 /**
  * Create the linux-dmabuf-unstable-v1 global.
  *

types/wlr_linux_dmabuf_v1.c

@@ -968,8 +968,8 @@ error_compiled:
 	return false;
 }
 
-struct wlr_linux_dmabuf_v1 *wlr_linux_dmabuf_v1_create_with_renderer(struct wl_display *display,
+struct wlr_linux_dmabuf_v1 *wlr_linux_dmabuf_v1_create(struct wl_display *display,
-		uint32_t version, struct wlr_renderer *renderer) {
+		uint32_t version, const struct wlr_linux_dmabuf_feedback_v1 *default_feedback) {
 	assert(version <= LINUX_DMABUF_VERSION);
 
 	struct wlr_linux_dmabuf_v1 *linux_dmabuf =
@@ -990,16 +990,7 @@ struct wlr_linux_dmabuf_v1 *wlr_linux_dmabuf_v1_create_with_renderer(struct wl_d
 		goto error_linux_dmabuf;
 	}
 
-	struct wlr_linux_dmabuf_feedback_v1_tranche tranche = {0};
+	if (!set_default_feedback(linux_dmabuf, default_feedback)) {
-	if (!feedback_tranche_init_with_renderer(&tranche, renderer)) {
-		goto error_global;
-	}
-	const struct wlr_linux_dmabuf_feedback_v1 feedback = {
-		.main_device = tranche.target_device,
-		.tranches = &tranche,
-		.tranches_len = 1,
-	};
-	if (!set_default_feedback(linux_dmabuf, &feedback)) {
 		goto error_global;
 	}
 
@@ -1017,6 +1008,20 @@ error_linux_dmabuf:
 	return NULL;
 }
 
+struct wlr_linux_dmabuf_v1 *wlr_linux_dmabuf_v1_create_with_renderer(struct wl_display *display,
+		uint32_t version, struct wlr_renderer *renderer) {
+	struct wlr_linux_dmabuf_feedback_v1_tranche tranche = {0};
+	if (!feedback_tranche_init_with_renderer(&tranche, renderer)) {
+		return NULL;
+	}
+	const struct wlr_linux_dmabuf_feedback_v1 feedback = {
+		.main_device = tranche.target_device,
+		.tranches = &tranche,
+		.tranches_len = 1,
+	};
+	return wlr_linux_dmabuf_v1_create(display, version, &feedback);
+}
+
 bool wlr_linux_dmabuf_v1_set_surface_feedback(
 		struct wlr_linux_dmabuf_v1 *linux_dmabuf,
 		struct wlr_surface *wlr_surface,