atomic::render::vkLib::VkDeviceManager Class Reference

Manages Vulkan physical devices and their suitability for rendering. More...

#include <device.h>

Public Member Functions
	VkDeviceManager (VkInstance instance)
	Constructs a VkDeviceManager instance.
	~VkDeviceManager ()
	Destroys the VkDeviceManager instance and releases resources.

Private Member Functions
int	rateDeviceSuitability (VkPhysicalDevice device)
	Rates the suitability of a Vulkan physical device.
bool	isDeviceSuitable (VkPhysicalDevice device)
	Checks if a Vulkan physical device is suitable for rendering.

Private Attributes
VkPhysicalDevice	physicalDevice = VK_NULL_HANDLE
	The selected Vulkan physical device. This device is the one that will be used for rendering by vulkan.
uint32_t	deviceCount = 0
	The number of Vulkan physical devices available. The number of all the devices available on the system.
std::vector< VkPhysicalDevice >	devices
	List of all available Vulkan physical devices. Lists all the devices available on the system including those not usable by vulkan.
std::multimap< int, VkPhysicalDevice >	deviceCandidates
	Ordered map to rank physical devices by their suitability score. This map is used to sort the devices based on their suitability for rendering. It only includes devices usable by vulkan and has them ranked by their suitability score.
atomic::render::vkLib::device::QueueFamilyIndices	queueFamilyIndices
	Queue family indices for the selected physical device.

Detailed Description

Manages Vulkan physical devices and their suitability for rendering.

This class is responsible for selecting a suitable Vulkan physical device, managing queue family indices, and maintaining a list of available devices.

Constructor & Destructor Documentation

VkDeviceManager()

atomic::render::vkLib::VkDeviceManager::VkDeviceManager

(

VkInstance

instance

)

Constructs a VkDeviceManager instance.

Parameters

instance

The Vulkan instance used to query physical devices.

Member Function Documentation

isDeviceSuitable()

bool atomic::render::vkLib::VkDeviceManager::isDeviceSuitable ( VkPhysicalDevice device )

private

Checks if a Vulkan physical device is suitable for rendering.

Parameters

device

The Vulkan physical device to check.

Returns

True if the device is suitable, false otherwise.

rateDeviceSuitability()

int atomic::render::vkLib::VkDeviceManager::rateDeviceSuitability ( VkPhysicalDevice device )

private

Rates the suitability of a Vulkan physical device.

This function evaluates the device based on various criteria :

• Discrete GPU : score += 1000
• Maximum possible tex size : score += maxImageDimension2D

• No geomtry shader support : score = 0

  Todo

  Add more criteria for ranking devices.

Parameters

device

The Vulkan physical device to evaluate.

Returns

An integer score representing the device's suitability.

---

The documentation for this class was generated from the following files:

• device.h
• device.cpp