Add RenderDriver::create_device()

engine/include/nova/render/render_driver.h

@@ -21,5 +21,6 @@ namespace Nova {
 
 		[[nodiscard]] virtual u32 get_device_count() const = 0;
 		[[nodiscard]] virtual const RenderDevice& get_device(u32 index) const = 0;
+		virtual void create_device(u32 index) = 0;
 	};
 } // namespace Nova

engine/src/drivers/vulkan/render_driver.cpp

@@ -25,13 +25,18 @@ VulkanRenderDriver::VulkanRenderDriver() {
 	_check_extensions();
 	_check_layers();
 	_init_instance();
-	_init_devices();
+	_init_hardware();
 }
 
 VulkanRenderDriver::~VulkanRenderDriver() {
 	NOVA_AUTO_TRACE();
+	if (m_device) {
+		vkDestroyDevice(m_device, _get_allocator(VK_OBJECT_TYPE_DEVICE));
+	}
+	if (m_instance) {
 		vkDestroyInstance(m_instance, _get_allocator(VK_OBJECT_TYPE_INSTANCE));
 	}
+}
 
 RenderAPI VulkanRenderDriver::get_api() const {
 	return RenderAPI::VULKAN;
@@ -51,6 +56,24 @@ const RenderDevice& VulkanRenderDriver::get_device(const u32 index) const {
 	return m_devices[index];
 }
 
+void VulkanRenderDriver::create_device(const u32 index) {
+	NOVA_AUTO_TRACE();
+
+	if (m_device) {
+		NOVA_ERROR("VkDevice already created");
+		return;
+	}
+
+	m_physical_device = static_cast<VkPhysicalDevice>(m_devices[index].handle);
+	std::vector<VkDeviceQueueCreateInfo> queues;
+
+	_check_device_extensions();
+	_check_device_features();
+	// TODO: Check device capabilities
+	_init_queues(queues);
+	_init_device(queues);
+}
+
 void VulkanRenderDriver::_check_version() const {
 	NOVA_AUTO_TRACE();
 
@@ -169,7 +192,7 @@ void VulkanRenderDriver::_init_instance() {
 	NOVA_LOG("VkInstance created");
 }
 
-void VulkanRenderDriver::_init_devices() {
+void VulkanRenderDriver::_init_hardware() {
 	NOVA_AUTO_TRACE();
 
 	u32 count;
@@ -189,9 +212,114 @@ void VulkanRenderDriver::_init_devices() {
 		m_devices.back().type = static_cast<RenderDevice::Type>(properties.deviceType);
 		m_devices.back().deviceID = properties.deviceID;
 		m_devices.back().handle = device;
+
+		NOVA_LOG("Found device: {}", properties.deviceName);
 	}
 }
 
+void VulkanRenderDriver::_check_device_extensions() {
+	NOVA_AUTO_TRACE();
+
+	std::unordered_map<std::string_view, bool> requested; // <extension, required>
+	requested[VK_KHR_SWAPCHAIN_EXTENSION_NAME] = true;
+	// TODO: Add other device extensions
+
+	// Get available extensions
+	u32 count;
+	vkEnumerateDeviceExtensionProperties(m_physical_device, nullptr, &count, nullptr); // TODO: Check result
+	std::vector<VkExtensionProperties> available(count);
+	vkEnumerateDeviceExtensionProperties(m_physical_device, nullptr, &count, available.data()); // TODO: Check result
+
+	// Check found extensions
+	for (const auto& extension : available) {
+		if (auto it = requested.find(extension.extensionName); it != requested.end()) {
+			NOVA_LOG("Using device extension: {}", extension.extensionName);
+			m_device_extensions.push_back(it->first.data());
+			requested.erase(it);
+		}
+	}
+
+	// Check remaining extensions
+	bool error = false;
+	for (auto [name, required] : requested) {
+		if (required) {
+			NOVA_ERROR("Required device extension not found: {}", name);
+			error = true;
+		} else {
+			NOVA_WARN("Optional device extension not found: {}", name);
+		}
+	}
+	if (error) {
+		throw std::runtime_error("Failed to find required device extensions");
+	}
+}
+
+void VulkanRenderDriver::_check_device_features() {
+	NOVA_AUTO_TRACE();
+
+	vkGetPhysicalDeviceFeatures(m_physical_device, &m_features);
+	// TODO: Check required features
+	// TODO: Disable unwanted features
+
+	NOVA_WARN("{}() not implemented", NOVA_FUNC_NAME);
+}
+
+void VulkanRenderDriver::_init_queues(std::vector<VkDeviceQueueCreateInfo>& queues) const {
+	NOVA_AUTO_TRACE();
+
+	u32 count;
+	vkGetPhysicalDeviceQueueFamilyProperties(m_physical_device, &count, nullptr);
+	std::vector<VkQueueFamilyProperties> available(count);
+	vkGetPhysicalDeviceQueueFamilyProperties(m_physical_device, &count, available.data());
+
+	constexpr VkQueueFlags mask = VK_QUEUE_GRAPHICS_BIT | VK_QUEUE_COMPUTE_BIT | VK_QUEUE_TRANSFER_BIT;
+	static float priority = 1.0f;
+	VkQueueFlags found = 0;
+
+	for (u32 i = 0; i < count; i++) {
+		if ((available[i].queueFlags & mask) == 0) {
+			continue;
+		}
+		if (!available[i].queueCount) {
+			continue;
+		}
+
+		NOVA_LOG("Using queue family: {}", i);
+		found |= available[i].queueFlags;
+
+		queues.emplace_back();
+		queues.back().sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
+		queues.back().queueFamilyIndex = i;
+		queues.back().queueCount = 1; // TODO: Does it make sense to have more than one queue?
+		queues.back().pQueuePriorities = &priority;
+	}
+
+	if ((found & mask) != mask) {
+		throw std::runtime_error("Failed to find required queue family");
+	}
+}
+
+void VulkanRenderDriver::_init_device(const std::vector<VkDeviceQueueCreateInfo>& queues) {
+	NOVA_AUTO_TRACE();
+
+	VkDeviceCreateInfo create {};
+	create.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
+	create.enabledLayerCount = m_layers.size();
+	create.ppEnabledLayerNames = m_layers.data();
+	create.enabledExtensionCount = m_device_extensions.size();
+	create.ppEnabledExtensionNames = m_device_extensions.data();
+	create.queueCreateInfoCount = queues.size();
+	create.pQueueCreateInfos = queues.data();
+	create.pEnabledFeatures = &m_features;
+	// TODO: pNext for additional features
+
+	if (vkCreateDevice(m_physical_device, &create, _get_allocator(VK_OBJECT_TYPE_DEVICE), &m_device) != VK_SUCCESS) {
+		throw std::runtime_error("Failed to create VkDevice");
+	}
+
+	NOVA_LOG("VkDevice created");
+}
+
 VkAllocationCallbacks* VulkanRenderDriver::_get_allocator(const VkObjectType type) {
 	// TODO: Add custom allocator
 	(void)type;

engine/src/drivers/vulkan/render_driver.h

@@ -22,19 +22,30 @@ namespace Nova {
 
 		[[nodiscard]] u32 get_device_count() const override;
 		[[nodiscard]] const RenderDevice& get_device(u32 index) const override;
+		void create_device(u32 index) override;
 
 	  private:
 		VkInstance m_instance = VK_NULL_HANDLE;
+		VkPhysicalDevice m_physical_device = VK_NULL_HANDLE;
+		VkDevice m_device = VK_NULL_HANDLE;
+		VkPhysicalDeviceFeatures m_features = {};
 
 		std::vector<const char*> m_extensions;
 		std::vector<const char*> m_layers;
+		std::vector<const char*> m_device_extensions;
 		std::vector<RenderDevice> m_devices;
 
 		void _check_version() const;
 		void _check_extensions();
 		void _check_layers();
 		void _init_instance();
-		void _init_devices();
+		void _init_hardware();
+
+		// TODO: Other init functions for device
+		void _check_device_extensions();
+		void _check_device_features();
+		void _init_queues(std::vector<VkDeviceQueueCreateInfo>& queues) const;
+		void _init_device(const std::vector<VkDeviceQueueCreateInfo>& queues);
 
 		static VkAllocationCallbacks* _get_allocator(VkObjectType type);
 	};