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Fix VK_ERROR_OUT_OF_DATE_KHR when resizing viewport #3766

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Fix VK_ERROR_OUT_OF_DATE_KHR when resizing viewport #3766

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6 changes: 5 additions & 1 deletion backends/imgui_impl_vulkan.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1518,7 +1518,11 @@ static void ImGui_ImplVulkan_SwapBuffers(ImGuiViewport* viewport, void*)
info.pSwapchains = &wd->Swapchain;
info.pImageIndices = &present_index;
err = vkQueuePresentKHR(v->Queue, &info);
check_vk_result(err);
if(err == VK_ERROR_OUT_OF_DATE_KHR{
ImGui_ImplVulkanH_CreateOrResizeWindow(v->Instance, v->PhysicalDevice, v->Device, &data->Window, v->QueueFamily, v->Allocator, (int)viewport->Size.x, (int)viewport->Size.y, v->MinImageCount);
}else{
check_vk_result(err);
}

wd->FrameIndex = (wd->FrameIndex + 1) % wd->ImageCount; // This is for the next vkWaitForFences()
wd->SemaphoreIndex = (wd->SemaphoreIndex + 1) % wd->ImageCount; // Now we can use the next set of semaphores
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