#include <descriptorsetcache.h>

Public Member Functions
	DescriptorSetCache (RenderService &renderService, VkDescriptorSetLayout layout, DescriptorSetAllocator &descriptorSetAllocator)

	~DescriptorSetCache ()

const DescriptorSet &	acquire (const std::vector< UniformBufferObject > &uniformBufferObjects, int numStorageBufferObjects, int numSamplers)

void	release (int frameIndex)

Description

Responsible for caching DescriptorSets and allocating them when the DescriptorSet is not in the cache. A DescriptorSetAllocator allocates DescriptorSets for a specific VkDescriptorSetLayout. Any DescriptorSet that is returned will be compatible with that VkDescriptorSetLayout.

Internally it will maintain a free-list of available DescriptorSets. When a VkDescriptorSet is acquired, it is marked for use by that frame (the current RenderService frame is used). When a frame is fully completed, release should be called for that frame so that the resources are return to the free-list, to be used by subsequent frames.

Constructor & Destructor Documentation

◆ DescriptorSetCache()

DescriptorSetCache	(	RenderService &	renderService,
		VkDescriptorSetLayout	layout,
		DescriptorSetAllocator &	descriptorSetAllocator
	)

◆ ~DescriptorSetCache()

~DescriptorSetCache ( )

Member Function Documentation

◆ acquire()

const DescriptorSet& acquire	(	const std::vector< UniformBufferObject > &	uniformBufferObjects,
		int	numStorageBufferObjects,
		int	numSamplers
	)

Acquires a DescriptorSet from the cache (or allocated it if not in the cache). For new DescriptorSets, also allocates Buffers for each UBO from the global Vulkan allocator. The result is a DescriptorSet that is fully compatible with the DescriptorSetLayout.

Parameters

uniformBufferObjects	The list of UBOs for this DescriptorSet.
numStorageBufferObjects	The number of HBOs for this DescriptorSet.
numSamplers	The number of samplers for this DescriptorSet

Returns: A DescriptorSet that is compatible with the VkDescriptorLayout that was passed upon creation.

◆ release()

void release ( int frameIndex )

Releases all DescriptorSets to the internal pool for use by other frames.