#include <descriptorsetallocator.h>

Public Member Functions
	DescriptorSetAllocator (VkDevice device)

	~DescriptorSetAllocator ()

VkDescriptorSet	allocate (VkDescriptorSetLayout layout, int numUBODescriptors, int numSSBODescriptors, int numSamplerDescriptors)

Description

Allocates DescriptorSets from a pool. Each pool is bound to a specific combination of UBOs and samplers, as allocates resources for each UBO and sampler as well as the DescriptorSet itself. Any shader that has the same amount of UBOs and samplers can therefore allocate from the same pool.

So, we maintain a map that holds a key that is a combination of sampler/UBO count. As a value, there is a list of pools, because pools are preallocated with a fixed size of sets to allocate from. If the pool is full, we need to allocate a new pool.

So essentially we're managing a pool of DescriptorSetPools here.

Constructor & Destructor Documentation

◆ DescriptorSetAllocator()

DescriptorSetAllocator ( VkDevice device )

Parameters

device resource to allocate descriptors from

◆ ~DescriptorSetAllocator()

~DescriptorSetAllocator ( )

Member Function Documentation

◆ allocate()

VkDescriptorSet allocate	(	VkDescriptorSetLayout	layout,
		int	numUBODescriptors,
		int	numSSBODescriptors,
		int	numSamplerDescriptors
	)

Allocate a DescriptorSetLayout that is compatible with VkDescriptorSetLayout (same amount of UBOs and samplers).