Bad resize logic

src/Game.zig

@@ -855,6 +855,10 @@ pub fn onMouseUp(self: *Game, button: glfw.MouseButton, mods: glfw.Mods) void {
 }
 
 fn render(self: *Game) !void {
+    if (self.swapchain.swapchain == .null_handle) {
+        return;
+    }
+
     const extent = self.swapchain.extent;
 
     const command_buffer: CommandBuffer(.graphics, .transient) = try .init(self.engine);
@@ -928,5 +932,19 @@ fn render(self: *Game) !void {
         },
     });
 
-    _ = res;
+    if (res == .suboptimal) {
+        try self.recreateSwapchain();
+    }
+}
+
+fn recreateSwapchain(self: *Game) !void {
+    self.swapchain.recreate(self.engine) catch |err| switch (err) {
+        error.OutOfDateKHR => return self.recreateSwapchain(),
+        else => return err,
+    };
+    for (self.global_uniforms_transfer_semaphores, 0..) |*semaphore, i| {
+        self.engine.destroySemaphore(semaphore.*);
+        semaphore.* = try self.engine.createSemaphore();
+        self.engine.setObjectName(semaphore.*, "S Transfer[{d}]", .{i});
+    }
 }

src/engine/Swapchain.zig

@@ -310,17 +310,23 @@ pub fn present(self: *Swapchain, engine: *Engine, present_info: PresentInfo) !Pr
 
     // --- PRESENT CURRENT FRAME -----------------------------------------------
 
-    _ = try device.queuePresentKHR(mode.presentation_queue.handle, &.{
+    _ = device.queuePresentKHR(mode.presentation_queue.handle, &.{
         .wait_semaphore_count = 1,
         .p_wait_semaphores = @ptrCast(&current_swapchain_image.semaphore_render_finished),
         .swapchain_count = 1,
         .p_swapchains = @ptrCast(&self.swapchain),
         .p_image_indices = @ptrCast(&self.image_index),
-    });
+    }) catch |err| switch (err) {
+        error.OutOfDateKHR => return .suboptimal,
+        else => return err,
+    };
 
     // --- ACQUIRE NEXT FRAME --------------------------------------------------
 
-    const res = try device.acquireNextImageKHR(self.swapchain, std.math.maxInt(u64), self.semaphore_image_acquired, .null_handle);
+    const res = device.acquireNextImageKHR(self.swapchain, std.math.maxInt(u64), self.semaphore_image_acquired, .null_handle) catch |err| switch (err) {
+        error.OutOfDateKHR => return .suboptimal,
+        else => return err,
+    };
     std.mem.swap(vk.Semaphore, &self.swapchain_images[res.image_index].semaphore_image_acquired, &self.semaphore_image_acquired);
     self.image_index = res.image_index;