Describes parameter of created VmaPool. More...

#include <vk_mem_alloc.h>

Public Attributes
uint32_t	memoryTypeIndex
	Vulkan memory type index to allocate this pool from. More...

VmaPoolCreateFlags	flags
	Use combination of VmaPoolCreateFlagBits. More...

VkDeviceSize	blockSize
	Size of a single `VkDeviceMemory` block to be allocated as part of this pool, in bytes. Optional. More...

size_t	minBlockCount
	Minimum number of blocks to be always allocated in this pool, even if they stay empty. More...

size_t	maxBlockCount
	Maximum number of blocks that can be allocated in this pool. Optional. More...

uint32_t	frameInUseCount
	Maximum number of additional frames that are in use at the same time as current frame. More...

Detailed Description

Describes parameter of created VmaPool.

Member Data Documentation

◆ blockSize

VkDeviceSize VmaPoolCreateInfo::blockSize

Size of a single VkDeviceMemory block to be allocated as part of this pool, in bytes. Optional.

Specify nonzero to set explicit, constant size of memory blocks used by this pool.

Leave 0 to use default and let the library manage block sizes automatically. Sizes of particular blocks may vary.

◆ flags

VmaPoolCreateFlags VmaPoolCreateInfo::flags

Use combination of VmaPoolCreateFlagBits.

◆ frameInUseCount

uint32_t VmaPoolCreateInfo::frameInUseCount

Maximum number of additional frames that are in use at the same time as current frame.

This value is used only when you make allocations with VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT flag. Such allocation cannot become lost if allocation.lastUseFrameIndex >= allocator.currentFrameIndex - frameInUseCount.

For example, if you double-buffer your command buffers, so resources used for rendering in previous frame may still be in use by the GPU at the moment you allocate resources needed for the current frame, set this value to 1.

If you want to allow any allocations other than used in the current frame to become lost, set this value to 0.

◆ maxBlockCount

size_t VmaPoolCreateInfo::maxBlockCount

Maximum number of blocks that can be allocated in this pool. Optional.

Set to 0 to use default, which is SIZE_MAX, which means no limit.

Set to same value as VmaPoolCreateInfo::minBlockCount to have fixed amount of memory allocated throughout whole lifetime of this pool.

◆ memoryTypeIndex

uint32_t VmaPoolCreateInfo::memoryTypeIndex

Vulkan memory type index to allocate this pool from.

◆ minBlockCount

size_t VmaPoolCreateInfo::minBlockCount

Minimum number of blocks to be always allocated in this pool, even if they stay empty.

Set to 0 to have no preallocated blocks and allow the pool be completely empty.

The documentation for this struct was generated from the following file:

vk_mem_alloc.h

Public Attributes