Use the new wl_callback interface

clients/simple-egl.c

@@ -189,14 +189,6 @@ init_gl(struct window *window)
 		glGetUniformLocation(window->gl.program, "rotation");
 }
 
-static void
-sync_callback(void *data)
-{
-	int *done = data;
-
-	*done = 1;
-}
-
 static void
 create_surface(struct window *window)
 {
@@ -205,15 +197,12 @@ create_surface(struct window *window)
 	EGLBoolean ret;
 	int done = 0;
 	
-	if (!display->premultiplied_argb_visual) {
+	if (!display->premultiplied_argb_visual)
-		wl_display_sync_callback(display->display, sync_callback, &done);
+		wl_display_roundtrip(display->display);
-		while (!done)
-			wl_display_iterate(display->display, display->mask);
 	if (!display->premultiplied_argb_visual) {
 		fprintf(stderr, "premultiplied argb visual missing\n");
 		exit(1);
 	}
-	}
 
 	window->surface = wl_compositor_create_surface(display->compositor);
 	visual = display->premultiplied_argb_visual;
@@ -235,8 +224,10 @@ create_surface(struct window *window)
 	assert(ret == EGL_TRUE);
 }
 
+static const struct wl_callback_listener frame_listener;
+
 static void
-redraw(struct wl_surface *surface, void *data, uint32_t time)
+redraw(void *data, struct wl_callback *callback, uint32_t time)
 {
 	struct window *window = data;
 	static const GLfloat verts[3][2] = {
@@ -287,11 +278,17 @@ redraw(struct wl_surface *surface, void *data, uint32_t time)
 	glFlush();
 
 	eglSwapBuffers(window->display->egl.dpy, window->egl_surface);
-	wl_display_frame_callback(window->display->display,
+	if (callback)
-				  window->surface,
+		wl_callback_destroy(callback);
-				  redraw, window);
+
+	callback = wl_surface_frame(window->surface);
+	wl_callback_add_listener(callback, &frame_listener, window);
 }
 
+static const struct wl_callback_listener frame_listener = {
+	redraw
+};
+
 static void
 compositor_handle_visual(void *data,
 			 struct wl_compositor *compositor,
@@ -356,12 +353,13 @@ main(int argc, char **argv)
 				       display_handle_global, &display);
 
 	wl_display_get_fd(display.display, event_mask_update, &display);
+	wl_display_iterate(display.display, WL_DISPLAY_READABLE);
 
 	init_egl(&display);
 	create_surface(&window);
 	init_gl(&window);
 
-	redraw(window.surface, &window, 0);
+	redraw(&window, NULL, 0);
 
 	while (true)
 		wl_display_iterate(display.display, display.mask);

clients/simple-shm.c

@@ -112,8 +112,10 @@ create_window(struct display *display, int width, int height)
 	return window;
 }
 
+static const struct wl_callback_listener frame_listener;
+
 static void
-redraw(struct wl_surface *surface, void *data, uint32_t time)
+redraw(void *data, struct wl_callback *callback, uint32_t time)
 {
 	struct window *window = data;
 	uint32_t *p;
@@ -130,11 +132,17 @@ redraw(struct wl_surface *surface, void *data, uint32_t time)
 	wl_surface_damage(window->surface,
 			  0, 0, window->width, window->height);
 
-	wl_display_frame_callback(window->display->display,
+	if (callback)
-				  window->surface,
+		wl_callback_destroy(callback);
-				  redraw, window);
+
+	callback = wl_surface_frame(window->surface);
+	wl_callback_add_listener(callback, &frame_listener, window);
 }
 
+static const struct wl_callback_listener frame_listener = {
+	redraw
+};
+
 static void
 compositor_handle_visual(void *data,
 			 struct wl_compositor *compositor,
@@ -180,19 +188,10 @@ event_mask_update(uint32_t mask, void *data)
 	return 0;
 }
 
-static void
-sync_callback(void *data)
-{
-	int *done = data;
-
-	*done = 1;
-}
-
 static struct display *
 create_display(void)
 {
 	struct display *display;
-	int done;
 
 	display = malloc(sizeof *display);
 	display->display = wl_display_connect(NULL);
@@ -204,9 +203,8 @@ create_display(void)
 
 	wl_display_get_fd(display->display, event_mask_update, display);
 	
-	wl_display_sync_callback(display->display, sync_callback, &done);
 	while (!display->xrgb_visual)
-		wl_display_iterate(display->display, display->mask);
+		wl_display_roundtrip(display->display);
 
 	return display;
 }
@@ -220,7 +218,7 @@ main(int argc, char **argv)
 	display = create_display();
 	window = create_window(display, 250, 250);
 
-	redraw(window->surface, window, 0);
+	redraw(window, NULL, 0);
 
 	while (true)
 		wl_display_iterate(display->display, display->mask);

clients/window.c

@@ -1887,25 +1887,6 @@ init_egl(struct display *d)
 	return 0;
 }
 
-static void
-sync_callback(void *data)
-{
-	int *done = data;
-
-	*done = 1;
-}
-
-static void
-force_roundtrip(struct display *d)
-{
-	int done = 0;
-
-	wl_display_sync_callback(d->display, sync_callback, &done);
-	wl_display_iterate(d->display, WL_DISPLAY_WRITABLE);
-	while (!done)
-		wl_display_iterate(d->display, WL_DISPLAY_READABLE);
-}
-
 struct display *
 display_create(int *argc, char **argv[], const GOptionEntry *option_entries,
 	       display_global_handler_t handler)
@@ -1966,7 +1947,7 @@ display_create(int *argc, char **argv[], const GOptionEntry *option_entries,
 	d->destroy_image = (void *) eglGetProcAddress("eglDestroyImageKHR");
 
 	if (!d->premultiplied_argb_visual || !d->rgb_visual) {
-		force_roundtrip(d);
+		wl_display_roundtrip(d->display);
 		if (!d->premultiplied_argb_visual || !d->rgb_visual) {
 			fprintf(stderr, "failed to retreive visuals\n");
 			return NULL;

compositor/compositor-wayland.c

@@ -157,14 +157,6 @@ wayland_compositor_init_egl(struct wayland_compositor *c)
 	return 0;
 }
 
-static void
-frame_callback(struct wl_surface *surface, void *data, uint32_t time)
-{
-	struct wlsc_output *output = data;
-
-	wlsc_output_finish_frame(output, time);
-}
-
 static int
 wayland_output_prepare_render(struct wlsc_output *output_base)
 {
@@ -180,20 +172,32 @@ wayland_output_prepare_render(struct wlsc_output *output_base)
 	return 0;
 }
 
+static void
+frame_done(void *data, struct wl_callback *wl_callback, uint32_t time)
+{
+	struct wlsc_output *output = data;
+
+	wlsc_output_finish_frame(output, time);
+}
+
+static const struct wl_callback_listener frame_listener = {
+	frame_done
+};
+
 static int
 wayland_output_present(struct wlsc_output *output_base)
 {
 	struct wayland_output *output = (struct wayland_output *) output_base;
 	struct wayland_compositor *c =
 		(struct wayland_compositor *) output->base.compositor;
+	struct wl_callback *callback;
 
 	if (wayland_output_prepare_render(&output->base))
 		return -1;
 
 	eglSwapBuffers(c->base.display, output->egl_surface);
-	wl_display_frame_callback(c->parent.display,
+	callback = wl_surface_frame(output->parent.surface);
-				  output->parent.surface,
+	wl_callback_add_listener(callback, &frame_listener, output);
-				  frame_callback, &output->base);
 
 	return 0;
 }

compositor/compositor.c

@@ -897,26 +897,31 @@ wlsc_output_repaint(struct wlsc_output *output)
 		fade_output(output, ec->fade.spring.current, &total_damage);
 }
 
+struct wlsc_frame_callback {
+	struct wl_resource resource;
+	struct wl_client *client;
+	struct wl_list link;
+};
+
 static void
 repaint(void *data, int msecs)
 {
 	struct wlsc_output *output = data;
 	struct wlsc_compositor *compositor = output->compositor;
-	struct wlsc_surface *es;
 	struct wlsc_animation *animation, *next;
+	struct wlsc_frame_callback *cb, *cnext;
 
 	wlsc_output_repaint(output);
 	output->repaint_needed = 0;
 	output->repaint_scheduled = 1;
 	output->present(output);
 
-	/* FIXME: Keep the surfaces in an per-output list. */
+	wl_list_for_each_safe(cb, cnext, &output->frame_callback_list, link) {
-	wl_list_for_each(es, &compositor->surface_list, link) {
+		wl_client_post_event(cb->client, &cb->resource.object, 
-		if (es->output == output) {
+				     WL_CALLBACK_DONE, msecs);
-			wl_display_post_frame(compositor->wl_display,
+		wl_resource_destroy(&cb->resource, cb->client, 0);
-					      &es->surface, msecs);
-		}
 	}
+	wl_list_init(&output->frame_callback_list);
 
 	wl_list_for_each_safe(animation, next,
 			      &compositor->animation_list, link)
@@ -1052,10 +1057,39 @@ surface_damage(struct wl_client *client,
 	wlsc_surface_damage_rectangle(es, x, y, width, height);
 }
 
+static void
+destroy_frame_callback(struct wl_resource *resource, struct wl_client *client)
+{
+	free(resource);
+}
+
+static void
+surface_frame(struct wl_client *client,
+	      struct wl_surface *surface, uint32_t callback)
+{
+	struct wlsc_frame_callback *cb;
+	struct wlsc_surface *es = (struct wlsc_surface *) surface;
+
+	cb = malloc(sizeof *cb);
+	if (cb == NULL) {
+		wl_client_post_no_memory(client);
+		return;
+	}
+		
+	cb->resource.object.interface = &wl_callback_interface;
+	cb->resource.object.id = callback;
+	cb->resource.destroy = destroy_frame_callback;
+	wl_list_insert(es->output->frame_callback_list.prev, &cb->link);
+	cb->client = client;
+
+	wl_client_add_resource(client, &cb->resource);
+}
+
 const static struct wl_surface_interface surface_interface = {
 	surface_destroy,
 	surface_attach,
-	surface_damage
+	surface_damage,
+	surface_frame
 };
 
 static void
@@ -1820,6 +1854,7 @@ wlsc_output_init(struct wlsc_output *output, struct wlsc_compositor *c,
 	output->scanout_buffer_destroy_listener.func =
 		output_handle_scanout_buffer_destroy;
 	wl_list_init(&output->scanout_buffer_destroy_listener.link);
+	wl_list_init(&output->frame_callback_list);
 
 	output->object.interface = &wl_output_interface;
 	wl_display_add_object(c->wl_display, &output->object);

compositor/compositor.h

@@ -66,6 +66,7 @@ struct wlsc_output {
 	struct wlsc_compositor *compositor;
 	struct wlsc_surface *background;
 	struct wlsc_matrix matrix;
+	struct wl_list frame_callback_list;
 	int32_t x, y, mm_width, mm_height;
 	pixman_region32_t region;
 	pixman_region32_t previous_damage;