Wire up output frame loop

include/sway/container.h

@@ -4,7 +4,6 @@
 #include <wlc/wlc.h>
 #include <wlr/types/wlr_output.h>
 #include <stdint.h>
-
 #include "list.h"
 
 typedef struct sway_container swayc_t;
@@ -76,7 +75,7 @@ struct sway_container {
 	wlc_handle handle;
 
 	union {
-		struct wlr_output *output;
+		struct sway_output *output;
 	} _handle;
 
 	/**
@@ -186,10 +185,11 @@ enum visibility_mask {
 	VISIBLE = true
 } visible;
 
+struct sway_output;
 /**
  * Allocates a new output container.
  */
-swayc_t *new_output(struct wlr_output *wlr_output);
+swayc_t *new_output(struct sway_output *sway_output);
 /**
  * Allocates a new workspace container.
  */

include/sway/output.h

@@ -1,9 +1,20 @@
 #ifndef _SWAY_OUTPUT_H
 #define _SWAY_OUTPUT_H
-
+#include <time.h>
+#include <wayland-server.h>
+#include <wlr/types/wlr_output.h>
 #include "container.h"
 #include "focus.h"
 
+struct sway_server;
+
+struct sway_output {
+	struct wlr_output *wlr_output;
+	struct wl_listener frame;
+	struct sway_server *server;
+	struct timespec last_frame;
+};
+
 // Position is absolute coordinates on the edge where the adjacent output
 // should be searched for.
 swayc_t *output_by_name(const char* name, const struct wlc_point *abs_pos);

include/sway/server.h

@@ -33,5 +33,6 @@ void server_fini(struct sway_server *server);
 void server_run(struct sway_server *server);
 
 void output_add_notify(struct wl_listener *listener, void *data);
+void output_remove_notify(struct wl_listener *listener, void *data);
 
 #endif

sway/commands/focus.c

@@ -1,3 +1,4 @@
+#define _POSIX_C_SOURCE 200809L
 #include <string.h>
 #include <strings.h>
 #include <wlc/wlc.h>

sway/commands/move.c

@@ -1,3 +1,4 @@
+#define _POSIX_C_SOURCE 200809L
 #include <string.h>
 #include <strings.h>
 #include <wlc/wlc.h>

sway/desktop/output.c

@@ -1,21 +1,60 @@
+#define _POSIX_C_SOURCE 200809L
+#include <stdlib.h>
+#include <time.h>
 #include <wayland-server.h>
 #include <wlr/types/wlr_output.h>
+#include <wlr/render.h>
 #include "sway/server.h"
 #include "sway/container.h"
 #include "sway/workspace.h"
+#include "sway/output.h"
 #include "log.h"
 
+static void output_frame_notify(struct wl_listener *listener, void *data) {
+	struct sway_output *soutput = wl_container_of(
+			listener, soutput, frame);
+	struct wlr_output *wlr_output = data;
+	struct sway_server *server = soutput->server;
+
+	struct timespec now;
+	clock_gettime(CLOCK_MONOTONIC, &now);
+
+	wlr_output_make_current(wlr_output);
+	wlr_renderer_begin(server->renderer, wlr_output);
+
+	wlr_renderer_end(server->renderer);
+	wlr_output_swap_buffers(wlr_output);
+
+	soutput->last_frame = now;
+}
+
 void output_add_notify(struct wl_listener *listener, void *data) {
 	struct sway_server *server = wl_container_of(listener, server, output_add);
 	struct wlr_output *wlr_output = data;
 	sway_log(L_DEBUG, "New output %p: %s", wlr_output, wlr_output->name);
-	swayc_t *op = new_output(wlr_output);
-	if (!sway_assert(op, "Failed to allocate output")) {
+
+	struct sway_output *output = calloc(1, sizeof(struct sway_output));
+	output->wlr_output = wlr_output;
+	output->server = server;
+
+	swayc_t *node = new_output(output);
+	if (!sway_assert(node, "Failed to allocate output")) {
 		return;
 	}
+
 	// Switch to workspace if we need to
 	if (swayc_active_workspace() == NULL) {
-		swayc_t *ws = op->children->items[0];
+		swayc_t *ws = node->children->items[0];
 		workspace_switch(ws);
 	}
+
+	output->frame.notify = output_frame_notify;
+	wl_signal_add(&wlr_output->events.frame, &output->frame);
+}
+
+void output_remove_notify(struct wl_listener *listener, void *data) {
+	struct sway_server *server = wl_container_of(listener, server, output_remove);
+	struct wlr_output *wlr_output = data;
+	sway_log(L_DEBUG, "Output %p %s removed", wlr_output, wlr_output->name);
+	// TODO
 }

sway/ipc-json.c

@@ -1,3 +1,4 @@
+#define _POSIX_C_SOURCE 200809L
 #include <json-c/json.h>
 #include <ctype.h>
 #include <string.h>
@@ -5,6 +6,7 @@
 #include <libinput.h>
 #include <wlr/types/wlr_box.h>
 #include <wlr/types/wlr_output.h>
+#include "sway/output.h"
 #include "sway/container.h"
 #include "sway/input.h"
 #include "sway/ipc-json.h"
@@ -18,7 +20,7 @@ static json_object *ipc_json_create_rect(swayc_t *c) {
 
 	struct wlr_box box;
 	if (c->type == C_OUTPUT) {
-		wlr_output_effective_resolution(c->_handle.output,
+		wlr_output_effective_resolution(c->_handle.output->wlr_output,
 				&box.width, &box.height);
 	} else {
 		box.width = c->width;

sway/server.c

@@ -30,6 +30,10 @@ bool server_init(struct sway_server *server) {
 	server->output_add.notify = output_add_notify;
 	wl_signal_add(&server->backend->events.output_add, &server->output_add);
 
+	server->output_remove.notify = output_remove_notify;
+	wl_signal_add(&server->backend->events.output_remove,
+			&server->output_remove);
+
 	server->socket = wl_display_add_socket_auto(server->wl_display);
 	if (!sway_assert(server->socket,  "Unable to open wayland socket")) {
 		wlr_backend_destroy(server->backend);

sway/tree/container.c

@@ -120,10 +120,11 @@ static void update_root_geometry() {
 
 // New containers
 
-swayc_t *new_output(struct wlr_output *wlr_output) {
+swayc_t *new_output(struct sway_output *sway_output) {
 	struct wlr_box size;
-	wlr_output_effective_resolution(wlr_output, &size.width, &size.height);
-	const char *name = wlr_output->name;
+	wlr_output_effective_resolution(sway_output->wlr_output,
+			&size.width, &size.height);
+	const char *name = sway_output->wlr_output->name;
 	// Find current outputs to see if this already exists
 	{
 		int i, len = root_container.children->length;
@@ -131,7 +132,8 @@ swayc_t *new_output(struct wlr_output *wlr_output) {
 			swayc_t *op = root_container.children->items[i];
 			const char *op_name = op->name;
 			if (op_name && name && strcmp(op_name, name) == 0) {
-				sway_log(L_DEBUG, "restoring output %p: %s", wlr_output, op_name);
+				sway_log(L_DEBUG, "restoring output %p: %s",
+						sway_output, op_name);
 				return op;
 			}
 		}
@@ -164,7 +166,7 @@ swayc_t *new_output(struct wlr_output *wlr_output) {
 	}
 
 	swayc_t *output = new_swayc(C_OUTPUT);
-	output->_handle.output = wlr_output;
+	output->_handle.output = sway_output;
 	output->name = name ? strdup(name) : NULL;
 	output->width = size.width;
 	output->height = size.width;

sway/tree/output.c

@@ -1,3 +1,4 @@
+#define _POSIX_C_SOURCE 200809L
 #include <strings.h>
 #include <ctype.h>
 #include <stdlib.h>