CODEWITHSUNDEEP
c++vulkanglfw
tsundoku
tsundoku

Reputation: 1

Resizing window in Vulkan has synchronization issues

I'm encountering validation errors when resizing a window in my Vulkan application. While the application works fine initially, resizing sometimes (about 1 in 2) causes synchronization issues and I receive the following validation errors:

vkQueueSubmit(): pSubmits[0].pCommandBuffers[0] VkCommandBuffer [...] is unrecorded and contains no commands. The Vulkan spec states: Each element of the pCommandBuffers member of each element of pSubmits must be in the pending or executable state.

vkQueuePresentKHR(): pPresentInfo->pSwapchains[0] images passed to present must be in layout VK_IMAGE_LAYOUT_PRESENT_SRC_KHR but is in VK_IMAGE_LAYOUT_UNDEFINED. The Vulkan spec states: Each element of pImageIndices must be the index of a presentable image acquired from the swapchain and in VK_IMAGE_LAYOUT_PRESENT_SRC_KHR.

I handle window resizing by recreating the swapchain and all associated resources (framebuffers, image views, etc.) I reset and re-record command buffers after resizing I update descriptor sets Here is my cleanupSwapChain and recreateSwapChain functions:

   void cleanupSwapChain() {        
       gbuffer.cleanupFramebuffers(vulkanDevice, MAXFRAMESINFLIGHT);       
       gbuffer.cleanupImages(vulkanDevice, MAXFRAMESINFLIGHT);             
       
       for (auto imageView : swapChainImageViews) {
           vkDestroyImageView(vulkanDevice.getDevice(), imageView, nullptr);
       }
       swapChainImageViews.clear();

       if (gbuffer.getCommandBuffers().size() != swapChainImages.size()) {
           gbuffer.freeCommandBuffers(vulkanDevice);
           gbuffer.createCommandBuffers(vulkanDevice, MAXFRAMESINFLIGHT);
       }

       vkDestroySwapchainKHR(vulkanDevice.getDevice(), swapChain, nullptr);
   }
 
void recreateSwapChain() {
     int width = 0, height = 0;
     glfwGetFramebufferSize(window, &width, &height);
     while (width == 0 || height == 0) {
         if (glfwWindowShouldClose(window))
             return;
         glfwGetFramebufferSize(window, &width, &height);
         glfwWaitEvents();
     }

     vkDeviceWaitIdle(vulkanDevice.getDevice());
     
     cleanupSwapChain();
     createSwapChain();
     createImageViews();

     gbuffer.createImageViews(vulkanDevice, swapChainExtent, MAXFRAMESINFLIGHT);
     gbuffer.updateDescriptorSets(vulkanDevice, MAXFRAMESINFLIGHT);

     gbuffer.createFramebuffers(vulkanDevice, grid, swapChainImageViews, swapChainExtent, MAXFRAMESINFLIGHT);
 }

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