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804cc44d09
From the vulkan spec 33.3 "Extension Dependencies": "Any device extension that has an instance extension dependency that is not enabled by vkCreateInstance is considered to be unsupported, hence it must not be returned by vkEnumerateDeviceExtensionProperties for any VkPhysicalDevice child of the instance." Therefore we need to check whether the instance-level extensions are actually enabled when deciding to support a device-level extension or not. Furthermore, we need to do this for all instance-level extensions of any (transitive) device-level extension dependency, due to the following paragraph: "If an extension is supported (as queried by vkEnumerateInstanceExtensionProperties or vkEnumerateDeviceExtensionProperties), then required extensions of that extension must also be supported for the same instance or physical device." Finally, because some of these vulkan extensions may be implicitly promoted to future vulkan core API versions, we can also satisfy the dependency if the vulkan API version is high enough. Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> |
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