Implement surface-invalidation-v1

Author: Nefsen402

include/mako.h

@@ -18,6 +18,7 @@
 #include "wlr-layer-shell-unstable-v1-client-protocol.h"
 #include "xdg-output-unstable-v1-client-protocol.h"
 #include "xdg-activation-v1-client-protocol.h"
+#include "surface-invalidation-v1-client-protocol.h"
 
 struct mako_state;
 
@@ -58,6 +59,7 @@ struct mako_state {
 	struct zwlr_layer_shell_v1 *layer_shell;
 	struct zxdg_output_manager_v1 *xdg_output_manager;
 	struct xdg_activation_v1 *xdg_activation;
+	struct wp_surface_invalidation_manager_v1 *surface_invalidation;
 	struct wl_list outputs; // mako_output::link
 	struct wl_list seats; // mako_seat::link
 

protocol/meson.build

@@ -24,6 +24,7 @@ wayland_scanner_client = generator(
 client_protocols = [
 	wl_protocol_dir / 'stable/xdg-shell/xdg-shell.xml',
 	wl_protocol_dir / 'staging/xdg-activation/xdg-activation-v1.xml',
+	wl_protocol_dir / 'staging/surface-invalidation/surface-invalidation-v1.xml',
 	wl_protocol_dir / 'unstable/xdg-output/xdg-output-unstable-v1.xml',
 	'wlr-layer-shell-unstable-v1.xml',
 ]

wayland.c

@@ -427,7 +427,6 @@ static const struct zwlr_layer_surface_v1_listener layer_surface_listener = {
 	.closed = layer_surface_handle_closed,
 };
 
-
 static void handle_global(void *data, struct wl_registry *registry,
 		uint32_t name, const char *interface, uint32_t version) {
 	struct mako_state *state = data;
@@ -457,6 +456,9 @@ static void handle_global(void *data, struct wl_registry *registry,
 	} else if (strcmp(interface, xdg_activation_v1_interface.name) == 0) {
 		state->xdg_activation = wl_registry_bind(registry, name,
 			&xdg_activation_v1_interface, 1);
+	} else if (strcmp(interface, wp_surface_invalidation_manager_v1_interface.name)) {
+		state->surface_invalidation = wl_registry_bind(registry, name,
+			&wp_surface_invalidation_manager_v1_interface, 1);
 	}
 }
 
@@ -613,8 +615,21 @@ static struct mako_output *get_configured_output(struct mako_surface *surface) {
 	return NULL;
 }
 
+static void send_frame(struct mako_surface *surface);
 static void schedule_frame_and_commit(struct mako_surface *surface);
 
+static void surface_invalidation_handle_invalidated(void *data,
+		struct wp_surface_invalidation_v1 *wp_surface_invalidation_v1, uint32_t serial) {
+	struct mako_surface *surface = data;
+
+	wp_surface_invalidation_v1_ack(wp_surface_invalidation_v1, serial);
+	send_frame(surface);
+}
+
+static struct wp_surface_invalidation_v1_listener surface_invalidation_listener = {
+	.invalidated = surface_invalidation_handle_invalidated,
+};
+
 // Draw and commit a new frame.
 static void send_frame(struct mako_surface *surface) {
 	struct mako_state *state = surface->state;
@@ -676,6 +691,14 @@ static void send_frame(struct mako_surface *surface) {
 		surface->surface = wl_compositor_create_surface(state->compositor);
 		wl_surface_add_listener(surface->surface, &surface_listener, surface);
 
+		if (state->surface_invalidation) {
+			struct wp_surface_invalidation_v1 *surface_invalidation =
+				wp_surface_invalidation_manager_v1_get_surface_invalidation(
+					state->surface_invalidation, surface->surface);
+			wp_surface_invalidation_v1_add_listener(surface_invalidation,
+				&surface_invalidation_listener, surface);
+		}
+
 		surface->layer_surface = zwlr_layer_shell_v1_get_layer_surface(
 			state->layer_shell, surface->surface, wl_output,
 			surface->layer, "notifications");