Creates and manages the lifecycle of |vk::DescriptorPoolVK| objects. More...

#include <descriptor_pool_vk.h>

Inheritance diagram for impeller::DescriptorPoolRecyclerVK:

Public Member Functions
	~DescriptorPoolRecyclerVK ()=default

	DescriptorPoolRecyclerVK (std::weak_ptr< ContextVK > context)
	Creates a recycler for the given \|ContextVK\|. More...

vk::UniqueDescriptorPool	Get ()
	Gets a descriptor pool. More...

void	Reclaim (vk::UniqueDescriptorPool &&pool)
	Returns the descriptor pool to be reset on a background thread. More...

Static Public Attributes
static constexpr size_t	kMaxRecycledPools = 32u
	The maximum number of descriptor pools this recycler will hold onto. More...

Detailed Description

Creates and manages the lifecycle of |vk::DescriptorPoolVK| objects.

Definition at line 51 of file descriptor_pool_vk.h.

Constructor & Destructor Documentation

◆ ~DescriptorPoolRecyclerVK()

impeller::DescriptorPoolRecyclerVK::~DescriptorPoolRecyclerVK ( )

default

◆ DescriptorPoolRecyclerVK()

impeller::DescriptorPoolRecyclerVK::DescriptorPoolRecyclerVK ( std::weak_ptr< ContextVK > context )

inlineexplicit

Creates a recycler for the given |ContextVK|.

Parameters

[in] context The context to create the recycler for.

Definition at line 62 of file descriptor_pool_vk.h.

63 : context_(std::move(context)) {}

Member Function Documentation

◆ Get()

vk::UniqueDescriptorPool impeller::DescriptorPoolRecyclerVK::Get ( )

Gets a descriptor pool.

        This may create a new descriptor pool if no existing pools had
        the necessary capacity.

Definition at line 151 of file descriptor_pool_vk.cc.

                                                      {
   // Recycle a pool with a matching minumum capcity if it is available.
   auto recycled_pool = Reuse();
   if (recycled_pool.has_value()) {
     return std::move(recycled_pool.value());
   }
   return Create();
 }

◆ Reclaim()

void impeller::DescriptorPoolRecyclerVK::Reclaim ( vk::UniqueDescriptorPool && pool )

Returns the descriptor pool to be reset on a background thread.

Parameters

[in] pool The pool to recycler.

Definition at line 133 of file descriptor_pool_vk.cc.

                                                                     {
   // Reset the pool on a background thread.
   auto strong_context = context_.lock();
   if (!strong_context) {
     return;
   }
   auto device = strong_context->GetDevice();
   device.resetDescriptorPool(pool.get());
  
   // Move the pool to the recycled list.
   Lock recycled_lock(recycled_mutex_);
  
   if (recycled_.size() < kMaxRecycledPools) {
     recycled_.push_back(std::move(pool));
     return;
   }
 }

References kMaxRecycledPools.

Member Data Documentation

◆ kMaxRecycledPools

constexpr size_t impeller::DescriptorPoolRecyclerVK::kMaxRecycledPools = 32u

staticconstexpr

The maximum number of descriptor pools this recycler will hold onto.

Definition at line 57 of file descriptor_pool_vk.h.

Referenced by Reclaim().

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

impeller/renderer/backend/vulkan/descriptor_pool_vk.h
impeller/renderer/backend/vulkan/descriptor_pool_vk.cc

Public Member Functions

Static Public Attributes