Merge pull request #869 from psychon/x11-cleanups

Some changes to the x11 backend

backend/x11/backend.c

@@ -65,18 +65,16 @@ void x11_output_layout_get_box(struct wlr_x11_backend *backend,
 	box->height = max_y - min_y;
 }
 
-static bool handle_x11_event(struct wlr_x11_backend *x11,
+static void handle_x11_event(struct wlr_x11_backend *x11,
 		xcb_generic_event_t *event) {
-	if (x11_handle_input_event(x11, event)) {
-		return false;
-	}
+	x11_handle_input_event(x11, event);
 
 	switch (event->response_type & XCB_EVENT_RESPONSE_TYPE_MASK) {
 	case XCB_EXPOSE: {
 		xcb_expose_event_t *ev = (xcb_expose_event_t *)event;
 		struct wlr_x11_output *output =
 			x11_output_from_window_id(x11, ev->window);
-		if (output != NULL) {
+		if (output != NULL && !output->wlr_output.frame_pending) {
 			wlr_output_send_frame(&output->wlr_output);
 		}
 		break;
@@ -103,8 +101,6 @@ static bool handle_x11_event(struct wlr_x11_backend *x11,
 		break;
 	}
 	}
-
-	return false;
 }
 
 static int x11_event(int fd, uint32_t mask, void *data) {
@@ -117,11 +113,8 @@ static int x11_event(int fd, uint32_t mask, void *data) {
 
 	xcb_generic_event_t *e;
 	while ((e = xcb_poll_for_event(x11->xcb_conn))) {
-		bool quit = handle_x11_event(x11, e);
+		handle_x11_event(x11, e);
 		free(e);
-		if (quit) {
-			break;
-		}
 	}
 
 	return 0;

backend/x11/input_device.c

@@ -56,7 +56,7 @@ static void x11_handle_pointer_position(struct wlr_x11_output *output,
 	x11->time = time;
 }
 
-bool x11_handle_input_event(struct wlr_x11_backend *x11,
+void x11_handle_input_event(struct wlr_x11_backend *x11,
 		xcb_generic_event_t *event) {
 	switch (event->response_type & XCB_EVENT_RESPONSE_TYPE_MASK) {
 	case XCB_KEY_PRESS:
@@ -73,7 +73,7 @@ bool x11_handle_input_event(struct wlr_x11_backend *x11,
 		// TODO use xcb-xkb for more precise modifiers state?
 		wlr_keyboard_notify_key(&x11->keyboard, &key);
 		x11->time = ev->time;
-		return true;
+		return;
 	}
 	case XCB_BUTTON_PRESS: {
 		xcb_button_press_event_t *ev = (xcb_button_press_event_t *)event;
@@ -110,19 +110,17 @@ bool x11_handle_input_event(struct wlr_x11_backend *x11,
 			wlr_signal_emit_safe(&x11->pointer.events.button, &button);
 		}
 		x11->time = ev->time;
-		return true;
+		return;
 	}
 	case XCB_MOTION_NOTIFY: {
 		xcb_motion_notify_event_t *ev = (xcb_motion_notify_event_t *)event;
 
 		struct wlr_x11_output *output =
 			x11_output_from_window_id(x11, ev->event);
-		if (output == NULL) {
-			return false;
-		}
-
+		if (output != NULL) {
 			x11_handle_pointer_position(output, ev->event_x, ev->event_y, ev->time);
-		return true;
+		}
+		return;
 	}
 	default:
 #ifdef WLR_HAS_XCB_XKB
@@ -131,13 +129,11 @@ bool x11_handle_input_event(struct wlr_x11_backend *x11,
 				(xcb_xkb_state_notify_event_t *)event;
 			wlr_keyboard_notify_modifiers(&x11->keyboard, ev->baseMods,
 				ev->latchedMods, ev->lockedMods, ev->lockedGroup);
-			return true;
+			return;
 		}
 #endif
 		break;
 	}
-
-	return false;
 }
 
 const struct wlr_input_device_impl input_device_impl = { 0 };

backend/x11/output.c

@@ -114,9 +114,8 @@ struct wlr_output *wlr_x11_output_create(struct wlr_backend *backend) {
 		wl_list_length(&x11->outputs) + 1);
 	parse_xcb_setup(wlr_output, x11->xcb_conn);
 
-	uint32_t mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK;
-	uint32_t values[2] = {
-		x11->screen->white_pixel,
+	uint32_t mask = XCB_CW_EVENT_MASK;
+	uint32_t values[] = {
 		XCB_EVENT_MASK_EXPOSURE |
 		XCB_EVENT_MASK_KEY_PRESS | XCB_EVENT_MASK_KEY_RELEASE |
 		XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE |

include/backend/x11.h

@@ -79,7 +79,7 @@ void x11_output_layout_get_box(struct wlr_x11_backend *backend,
 
 const struct wlr_input_device_impl input_device_impl;
 
-bool x11_handle_input_event(struct wlr_x11_backend *x11,
+void x11_handle_input_event(struct wlr_x11_backend *x11,
 	xcb_generic_event_t *event);
 void x11_update_pointer_position(struct wlr_x11_output *output,
 	xcb_timestamp_t time);