From e049300d02c14d84d434ad3fb46f8c8ba612a6c2 Mon Sep 17 00:00:00 2001
From: Robin Voetter <robin@voetter.nl>
Date: Fri, 3 Jul 2020 15:48:26 +0200
Subject: [PATCH] Dispose of old swapchain after recreating

This previously lead to X11 errors after aggressively resizing the
window
---
 examples/swapchain.zig | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/examples/swapchain.zig b/examples/swapchain.zig
index 6c2dd9b..7394d4f 100644
--- a/examples/swapchain.zig
+++ b/examples/swapchain.zig
@@ -64,6 +64,11 @@ pub const Swapchain = struct {
         }, null);
         errdefer gc.vkd.destroySwapchainKHR(gc.dev, handle, null);
 
+        if (old_handle != .null_handle) {
+            // Apparently, the old swapchain handle still needs to be destroyed after recreating.
+            gc.vkd.destroySwapchainKHR(gc.dev, old_handle, null);
+        }
+
         const swap_images = try initSwapchainImages(gc, handle, surface_format.format, allocator);
         errdefer for (swap_images) |si| si.deinit(gc);