examples/sdl2: Improve synchronization. #103
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Regains these 1000 FPS by implementing a proper fix for realitix#55. * Create and use queue submit fences per swap chain buffer. * Increase the semaphore count for "image_available" and "render_finished" from 1 to swap chain size. * Introduce `recycled_semaphores` list to decouple `image_available` semaphore retrieval from `image_index`. * Use `vkQueueWaitIdle` only when `vkAcquireNextImageKHR` fails. * Pass `VkSubmitInfo` direclty to `vkQueueSubmit`, avoiding extra ffi array. This synchronization is based on the hello triangle example from the Khronos Vulkan-Samples repo: https://github.com/KhronosGroup/Vulkan-Samples/tree/main/samples/api/hello_triangle_1_3 This solution runs cleanly on VK_LAYER_KHRONOS_validation 1.4.313.0.
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Regains these 1000 FPS by implementing a proper fix for #55.
recycled_semaphoreslist to decoupleimage_availablesemaphore retrieval fromimage_index.vkQueueWaitIdleonly whenvkAcquireNextImageKHRfails.VkSubmitInfodireclty tovkQueueSubmit, avoiding extra ffi array.This synchronization is based on the hello triangle example from the Khronos Vulkan-Samples repo:
https://github.com/KhronosGroup/Vulkan-Samples/tree/main/samples/api/hello_triangle_1_3
This solution runs cleanly on VK_LAYER_KHRONOS_validation 1.4.313.0.