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[ERROR: Validation] Semaphore is being signaled by VkQueue but it may still be in use by VkSwapchainKHR #140
Description
Had a "Semaphore is being signaled by VkQueue but it may still be in use by VkSwapchainKHR" error, after a bit of investigation it turns out to be caused by the example framework. In the example framework present_ready and render_complete are hard wired for three semaphores, and vulkan does not always return three swapchain images. I fixed this as follows;
- vuk::Unique<std::array<VkSemaphore, 3>> present_ready;
- vuk::Unique<std::array<VkSemaphore, 3>> render_complete;
+ vuk::Unique<std::vector<VkSemaphore>> present_ready;
+ vuk::Unique<std::vector<VkSemaphore>> render_complete;
- present_ready = vuk::Unique<std::array<VkSemaphore, 3>>(*superframe_allocator);
- render_complete = vuk::Unique<std::array<VkSemaphore, 3>>(*superframe_allocator);
+ present_ready = vuk::Unique<std::vector<VkSemaphore>>(*superframe_allocator);
+ present_ready->resize(swapchain->images.size());
+ render_complete = vuk::Unique<std::vector<VkSemaphore>>(*superframe_allocator);
+ render_complete->resize(swapchain->images.size());
- bundle = *acquire_one(*context, swapchain, (*present_ready)[context->get_frame_count() % 3], (*render_complete)[context->get_frame_count() % 3]);
+ bundle = *acquire_one(*context, swapchain, (*present_ready)[context->get_frame_count() % (*present_ready).size()], (*render_complete)[context->get_frame_count() % (*render_complete).size()]);
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