Merge pull request #1000 from ammen99/custom-renderer-initialization

[RFC] backends: implement custom EGL and renderer initialization

1 files changed, 9 insertions, 1 deletions

diff --git a/include/wlr/backend.h b/include/wlr/backend.h
index 2059e3b7..f40f5353 100644
--- a/include/wlr/backend.h
+++ b/include/wlr/backend.h
@@ -20,12 +20,20 @@ struct wlr_backend {
 	} events;
 };
 
+typedef struct wlr_renderer *(*wlr_renderer_create_func_t)(struct wlr_egl *egl, EGLenum platform,
+	void *remote_display, EGLint *config_attribs, EGLint visual_id);
 /**
  * Automatically initializes the most suitable backend given the environment.
  * Will always return a multibackend. The backend is created but not started.
  * Returns NULL on failure.
+ *
+ * The compositor can request to initialize the backend's renderer by setting
+ * the create_render_func. The callback must initialize the given wlr_egl and
+ * return a valid wlr_renderer, or NULL if it has failed to initiaze it.
+ * Pass NULL as create_renderer_func to use the backend's default renderer.
  */
-struct wlr_backend *wlr_backend_autocreate(struct wl_display *display);
+struct wlr_backend *wlr_backend_autocreate(struct wl_display *display,
+	wlr_renderer_create_func_t create_renderer_func);
 /**
  * Start the backend. This may signal new_input or new_output immediately, but
  * may also wait until the display's event loop begins. Returns false on