Manages GPU queries allocation in a set of pools. Pools need to be buffered per frame so that we can retrieve the previous frame queries while the current queries are running. More...

#include <QueryAllocator.hpp>

Public Member Functions
void	init (GPUQuery::Type type, uint count)

uint	allocate ()

void	resetWritePool ()

VkQueryPool &	getWritePool ()

VkQueryPool &	getReadPool ()

void	clean ()

Private Attributes
std::vector< VkQueryPool >	_pools
	Per-frame native query pools.

uint	_totalCount = 0u
	Total size of each pool, in queries.

uint	_currentCount = 0u
	Current number of allocated queries.

uint	_itemSize = 1u
	Number of hardware queries used for the given query type (two for duration queries, fi).

Detailed Description

Manages GPU queries allocation in a set of pools. Pools need to be buffered per frame so that we can retrieve the previous frame queries while the current queries are running.

Member Function Documentation

◆ allocate()

uint QueryAllocator::allocate ( )

Allocate a query and returns its offset in the pool.

Returns: offset in the pool.

◆ clean()

void QueryAllocator::clean ( )

Clean the query pools.

◆ getReadPool()

VkQueryPool & QueryAllocator::getReadPool ( )

Returns: the previous frame pool (for retrieving the values)

◆ getWritePool()

VkQueryPool & QueryAllocator::getWritePool ( )

Returns: the current frame pool (for starting/ending queries)

◆ init()

void QueryAllocator::init	(	GPUQuery::Type	type,
		uint	count
	)

Setup the allocator for a given query type.

Parameters

type	the type of queries to store
count	the total number of queries to allocate

◆ resetWritePool()

void QueryAllocator::resetWritePool ( )

Reset the pool that will be used at the current frame for new queries.

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

src/engine/graphics/QueryAllocator.hpp
src/engine/graphics/QueryAllocator.cpp

Public Member Functions

Private Attributes