Backport screenshooter fixes from the renderer redesign v1

This backports some changes to #319 to fix the screenshooter data
format. This also adds wlr_backend_get_renderer which will be
useful to support multiple renderers.

1 files changed, 8 insertions, 1 deletions

diff --git a/backend/drm/backend.c b/backend/drm/backend.c
index 112b2b61..0cb64930 100644
--- a/backend/drm/backend.c
+++ b/backend/drm/backend.c
@@ -50,10 +50,17 @@ static struct wlr_egl *wlr_drm_backend_get_egl(struct wlr_backend *backend) {
 	return &drm->renderer.egl;
 }
 
+static struct wlr_renderer *wlr_drm_backend_get_renderer(
+		struct wlr_backend *backend) {
+	struct wlr_drm_backend *drm = (struct wlr_drm_backend *)backend;
+	return drm->renderer.wlr_rend;
+}
+
 static struct wlr_backend_impl backend_impl = {
 	.start = wlr_drm_backend_start,
 	.destroy = wlr_drm_backend_destroy,
-	.get_egl = wlr_drm_backend_get_egl
+	.get_egl = wlr_drm_backend_get_egl,
+	.get_renderer = wlr_drm_backend_get_renderer,
 };
 
 bool wlr_backend_is_drm(struct wlr_backend *b) {