backend/headless: remove wlr_output_impl.export_dmabuf

This is now provided by the generic wlr_output implementation.

backend/headless/output.c

@@ -18,11 +18,8 @@ static struct wlr_headless_output *headless_output_from_output(
 	return (struct wlr_headless_output *)wlr_output;
 }
 
-static bool output_set_custom_mode(struct wlr_output *wlr_output, int32_t width,
-		int32_t height, int32_t refresh) {
-	struct wlr_headless_output *output =
-		headless_output_from_output(wlr_output);
-
+static bool output_set_custom_mode(struct wlr_headless_output *output,
+		int32_t width, int32_t height, int32_t refresh) {
 	if (refresh <= 0) {
 		refresh = HEADLESS_DEFAULT_REFRESH;
 	}
@@ -58,7 +55,7 @@ static bool output_commit(struct wlr_output *wlr_output) {
 	}
 
 	if (wlr_output->pending.committed & WLR_OUTPUT_STATE_MODE) {
-		if (!output_set_custom_mode(wlr_output,
+		if (!output_set_custom_mode(output,
 				wlr_output->pending.custom_mode.width,
 				wlr_output->pending.custom_mode.height,
 				wlr_output->pending.custom_mode.refresh)) {
@@ -67,48 +64,23 @@ static bool output_commit(struct wlr_output *wlr_output) {
 	}
 
 	if (wlr_output->pending.committed & WLR_OUTPUT_STATE_BUFFER) {
-		assert(wlr_output->pending.buffer_type ==
-			WLR_OUTPUT_STATE_BUFFER_SCANOUT);
-
-		wlr_buffer_unlock(output->front_buffer);
-		output->front_buffer = wlr_buffer_lock(wlr_output->pending.buffer);
-
 		wlr_output_send_present(wlr_output, NULL);
 	}
 
 	return true;
 }
 
-static bool output_export_dmabuf(struct wlr_output *wlr_output,
-		struct wlr_dmabuf_attributes *attribs) {
-	struct wlr_headless_output *output =
-		headless_output_from_output(wlr_output);
-
-	if (!output->front_buffer) {
-		return false;
-	}
-
-	struct wlr_dmabuf_attributes tmp;
-	if (!wlr_buffer_get_dmabuf(output->front_buffer, &tmp)) {
-		return false;
-	}
-
-	return wlr_dmabuf_attributes_copy(attribs, &tmp);
-}
-
 static void output_destroy(struct wlr_output *wlr_output) {
 	struct wlr_headless_output *output =
 		headless_output_from_output(wlr_output);
 	wl_list_remove(&output->link);
 	wl_event_source_remove(output->frame_timer);
-	wlr_buffer_unlock(output->front_buffer);
 	free(output);
 }
 
 static const struct wlr_output_impl output_impl = {
 	.destroy = output_destroy,
 	.commit = output_commit,
-	.export_dmabuf = output_export_dmabuf,
 };
 
 bool wlr_output_is_headless(struct wlr_output *wlr_output) {
@@ -138,7 +110,7 @@ struct wlr_output *wlr_headless_add_output(struct wlr_backend *wlr_backend,
 		backend->display);
 	struct wlr_output *wlr_output = &output->wlr_output;
 
-	output_set_custom_mode(wlr_output, width, height, 0);
+	output_set_custom_mode(output, width, height, 0);
 	strncpy(wlr_output->make, "headless", sizeof(wlr_output->make));
 	strncpy(wlr_output->model, "headless", sizeof(wlr_output->model));
 	snprintf(wlr_output->name, sizeof(wlr_output->name), "HEADLESS-%zd",

include/backend/headless.h

@@ -25,8 +25,6 @@ struct wlr_headless_output {
 	struct wlr_headless_backend *backend;
 	struct wl_list link;
 
-	struct wlr_buffer *front_buffer;
-
 	struct wl_event_source *frame_timer;
 	int frame_delay; // ms
 };