Fix pointer input for rotated views on HiDPI outputs

rootston/desktop.c

@@ -216,7 +216,7 @@ void view_teardown(struct roots_view *view) {
 
 struct roots_view *view_at(struct roots_desktop *desktop, double lx, double ly,
 		struct wlr_surface **surface, double *sx, double *sy) {
-	for (int i = desktop->views->length - 1; i >= 0; --i) {
+	for (ssize_t i = desktop->views->length - 1; i >= 0; --i) {
 		struct roots_view *view = desktop->views->items[i];
 
 		if (view->type == ROOTS_WL_SHELL_VIEW &&
@@ -228,11 +228,12 @@ struct roots_view *view_at(struct roots_desktop *desktop, double lx, double ly,
 		double view_sx = lx - view->x;
 		double view_sy = ly - view->y;
 
+		struct wlr_surface_state *state = view->wlr_surface->current;
 		struct wlr_box box = {
 			.x = 0,
 			.y = 0,
-			.width = view->wlr_surface->current->buffer_width,
-			.height = view->wlr_surface->current->buffer_height,
+			.width = state->buffer_width / state->scale,
+			.height = state->buffer_height / state->scale,
 		};
 		if (view->rotation != 0.0) {
 			// Coordinates relative to the center of the view