output/render: Drop buffer age from wlr_output_begin_render_pass

For compositors wanting to damage track, `wlr_damage_ring_rotate_buffer()`
should be used and the damage should be set on the passed state.

examples/fullscreen-shell.c

@@ -90,8 +90,7 @@ static void output_handle_frame(struct wl_listener *listener, void *data) {
 
 	struct wlr_output_state state;
 	wlr_output_state_init(&state);
-	struct wlr_render_pass *pass = wlr_output_begin_render_pass(output->wlr_output, &state, NULL,
-		NULL);
+	struct wlr_render_pass *pass = wlr_output_begin_render_pass(output->wlr_output, &state, NULL);
 	if (pass == NULL) {
 		return;
 	}

examples/output-layers.c

@@ -94,9 +94,7 @@ static void output_handle_frame(struct wl_listener *listener, void *data) {
 	int width, height;
 	wlr_output_effective_resolution(output->wlr_output, &width, &height);
 
-	struct wlr_render_pass *pass = wlr_output_begin_render_pass(output->wlr_output, &output_state,
-		NULL, NULL);
-
+	struct wlr_render_pass *pass = wlr_output_begin_render_pass(output->wlr_output, &output_state, NULL);
 	wlr_render_pass_add_rect(pass, &(struct wlr_render_rect_options){
 		.box = { .width = width, .height = height },
 		.color = { 0.3, 0.3, 0.3, 1 },

examples/output-layout.c

@@ -114,7 +114,7 @@ static void output_frame_notify(struct wl_listener *listener, void *data) {
 
 	struct wlr_output_state output_state;
 	wlr_output_state_init(&output_state);
-	struct wlr_render_pass *pass = wlr_output_begin_render_pass(wlr_output, &output_state, NULL, NULL);
+	struct wlr_render_pass *pass = wlr_output_begin_render_pass(wlr_output, &output_state, NULL);
 
 	wlr_render_pass_add_rect(pass, &(struct wlr_render_rect_options){
 		.box = { .width = wlr_output->width, .height = wlr_output->height },

examples/pointer.c

@@ -101,7 +101,7 @@ static void output_frame_notify(struct wl_listener *listener, void *data) {
 
 	struct wlr_output_state output_state;
 	wlr_output_state_init(&output_state);
-	struct wlr_render_pass *pass = wlr_output_begin_render_pass(wlr_output, &output_state, NULL, NULL);
+	struct wlr_render_pass *pass = wlr_output_begin_render_pass(wlr_output, &output_state, NULL);
 	wlr_render_pass_add_rect(pass, &(struct wlr_render_rect_options){
 		.box = { .width = wlr_output->width, .height = wlr_output->height },
 		.color = {

examples/rotation.c

@@ -59,7 +59,7 @@ static void output_frame_notify(struct wl_listener *listener, void *data) {
 
 	struct wlr_output_state output_state;
 	wlr_output_state_init(&output_state);
-	struct wlr_render_pass *pass = wlr_output_begin_render_pass(wlr_output, &output_state, NULL, NULL);
+	struct wlr_render_pass *pass = wlr_output_begin_render_pass(wlr_output, &output_state, NULL);
 
 	wlr_render_pass_add_rect(pass, &(struct wlr_render_rect_options){
 		.box = { .width = wlr_output->width, .height = wlr_output->height },

examples/simple.c

@@ -63,7 +63,7 @@ static void output_frame_notify(struct wl_listener *listener, void *data) {
 
 	struct wlr_output_state state;
 	wlr_output_state_init(&state);
-	struct wlr_render_pass *pass = wlr_output_begin_render_pass(wlr_output, &state, NULL, NULL);
+	struct wlr_render_pass *pass = wlr_output_begin_render_pass(wlr_output, &state, NULL);
 	wlr_render_pass_add_rect(pass, &(struct wlr_render_rect_options){
 		.box = { .width = wlr_output->width, .height = wlr_output->height },
 		.color = {

examples/tablet.c

@@ -89,7 +89,7 @@ static void output_frame_notify(struct wl_listener *listener, void *data) {
 
 	struct wlr_output_state output_state;
 	wlr_output_state_init(&output_state);
-	struct wlr_render_pass *pass = wlr_output_begin_render_pass(wlr_output, &output_state, NULL, NULL);
+	struct wlr_render_pass *pass = wlr_output_begin_render_pass(wlr_output, &output_state, NULL);
 
 	wlr_render_pass_add_rect(pass, &(struct wlr_render_rect_options){
 		.box = { .width = wlr_output->width, .height = wlr_output->height },

examples/touch.c

@@ -76,7 +76,7 @@ static void output_frame_notify(struct wl_listener *listener, void *data) {
 
 	struct wlr_output_state output_state;
 	wlr_output_state_init(&output_state);
-	struct wlr_render_pass *pass = wlr_output_begin_render_pass(wlr_output, &output_state, NULL, NULL);
+	struct wlr_render_pass *pass = wlr_output_begin_render_pass(wlr_output, &output_state, NULL);
 	wlr_render_pass_add_rect(pass, &(struct wlr_render_rect_options){
 		.box = { .width = width, .height = height },
 		.color = { 0.25, 0.25, 0.25, 1 },

include/wlr/types/wlr_output.h

@@ -616,7 +616,6 @@ bool wlr_output_configure_primary_swapchain(struct wlr_output *output,
  * frames or -1 if unknown. This is useful for damage tracking.
  */
 struct wlr_render_pass *wlr_output_begin_render_pass(struct wlr_output *output,
-	struct wlr_output_state *state, int *buffer_age,
-	struct wlr_buffer_pass_options *render_options);
+	struct wlr_output_state *state, struct wlr_buffer_pass_options *render_options);
 
 #endif

types/output/render.c

@@ -199,13 +199,12 @@ bool output_pick_format(struct wlr_output *output,
 }
 
 struct wlr_render_pass *wlr_output_begin_render_pass(struct wlr_output *output,
-		struct wlr_output_state *state, int *buffer_age,
-		struct wlr_buffer_pass_options *render_options) {
+		struct wlr_output_state *state, struct wlr_buffer_pass_options *render_options) {
 	if (!wlr_output_configure_primary_swapchain(output, state, &output->swapchain)) {
 		return NULL;
 	}
 
-	struct wlr_buffer *buffer = wlr_swapchain_acquire(output->swapchain, buffer_age);
+	struct wlr_buffer *buffer = wlr_swapchain_acquire(output->swapchain, NULL);
 	if (buffer == NULL) {
 		return NULL;
 	}