Method initialize_vulkan

client/application.cpp:743–985

}

void application::initialize_vulkan()
{
	auto graphics_requirements = xr_system_id.graphics_requirements();
	XrVersion vulkan_version = std::max(app_info.min_vulkan_version, graphics_requirements.minApiVersionSupported);
	spdlog::info("OpenXR runtime wants Vulkan {}", xr::to_string(graphics_requirements.minApiVersionSupported));
	spdlog::info("Requesting Vulkan {}", xr::to_string(vulkan_version));

	std::vector<const char *> layers;

	spdlog::info("Available Vulkan layers:");
	[[maybe_unused]] bool validation_layer_found = false;

	for (vk::LayerProperties & i: vk_context.enumerateInstanceLayerProperties())
	{
		spdlog::info("    {}", i.layerName.data());
		if (!strcmp(i.layerName, "VK_LAYER_KHRONOS_validation"))
		{
			validation_layer_found = true;
		}
	}
#ifndef NDEBUG
#ifdef __ANDROID__
	if (validation_layer_found)
	{
		spdlog::info("Using Vulkan validation layer");
		layers.push_back("VK_LAYER_KHRONOS_validation");
	}
#endif
	bool debug_report_found = false;
	bool debug_utils_found = false;
#endif

	std::vector<const char *> instance_extensions{};
	std::unordered_set<std::string_view> optional_device_extensions{};

	spdlog::info("Available Vulkan instance extensions:");
	std::vector<std::pair<std::string, int>> extensions;
	for (vk::ExtensionProperties & i: vk_context.enumerateInstanceExtensionProperties(nullptr))
	{
		extensions.emplace_back(i.extensionName.data(), i.specVersion);

#ifndef NDEBUG
		if (!strcmp(i.extensionName, VK_EXT_DEBUG_REPORT_EXTENSION_NAME))
		{
			debug_report_found = true;
			instance_extensions.push_back(VK_EXT_DEBUG_REPORT_EXTENSION_NAME);
		}

		if (!strcmp(i.extensionName, VK_EXT_DEBUG_UTILS_EXTENSION_NAME) and get_hmd_traits().vk_debug_ext_allowed)
		{
			debug_utils_found = true;
			instance_extensions.push_back(VK_EXT_DEBUG_UTILS_EXTENSION_NAME);
		}
#endif
	}
	std::ranges::sort(extensions);
	for (const auto & [extension_name, spec_version]: extensions)
		spdlog::info("    {} (version {})", extension_name, spec_version);