/** For each specified Memory Allocator's Item, the function asks VMA for a memory region that
* can be assigned to corresponding wrapper instance. For each successfully handled request,
* a MemoryBlock instance is created, using the feedback provided by the library.
*
* This function can be called multiple times.
*
* @return true if all allocations have been handled successfully, false if there was at least
* one failure.
**/
bool Anvil::MemoryAllocatorBackends::VMA::bake(Anvil::MemoryAllocator::Items& in_items)
{
bool result = true;
VkResult result_vk = VK_ERROR_DEVICE_LOST;
/* Go through all scheduled items and call the underlying library API to handle the request.
*
* For each successful allocation, wrap it with a MemoryBlock wrapper with a custom delete
* handler, so that VMA is notified whenever a memory block it has provided memory backing for
* has gone out of scope.
*/
for (auto& current_item_ptr : in_items)
{
MemoryBlockUniquePtr new_memory_block_ptr(nullptr,
std::default_delete<Anvil::MemoryBlock>() );
VmaAllocation allocation = VK_NULL_HANDLE;
VmaAllocationCreateInfo allocation_create_info = {};
VmaAllocationInfo allocation_info = {};
VkMemoryRequirements memory_requirements_vk;
Anvil::OnMemoryBlockReleaseCallbackFunction release_callback_function;
VkMemoryHeapFlags required_mem_heap_flags = 0;
VkMemoryPropertyFlags required_mem_property_flags = 0;
Anvil::Utils::get_vk_property_flags_from_memory_feature_flags(current_item_ptr->alloc_memory_required_features,
&required_mem_property_flags,
&required_mem_heap_flags);
/* NOTE: VMA does not take required memory heap flags at the moment. Adding this is on their radar. */
anvil_assert(required_mem_heap_flags == 0);
memory_requirements_vk.alignment = current_item_ptr->alloc_memory_required_alignment;
memory_requirements_vk.memoryTypeBits = current_item_ptr->alloc_memory_supported_memory_types;
memory_requirements_vk.size = current_item_ptr->alloc_size;
allocation_create_info.requiredFlags = required_mem_property_flags;
result_vk = vmaAllocateMemory(m_vma_allocator_ptr->get_handle(),
&memory_requirements_vk,
&allocation_create_info,
&allocation,
&allocation_info);
if (!is_vk_call_successful(result_vk) )
{
result = false;
continue;
}
/* Bake the block and stash it */
release_callback_function = std::bind(
&VMAAllocator::on_vma_alloced_mem_block_gone_out_of_scope,
m_vma_allocator_ptr,
std::placeholders::_1,
allocation
);
{
auto create_info_ptr = Anvil::MemoryBlockCreateInfo::create_derived_with_custom_delete_proc(m_device_ptr,
allocation_info.deviceMemory,
memory_requirements_vk.memoryTypeBits,
current_item_ptr->alloc_memory_required_features,
allocation_info.memoryType,
memory_requirements_vk.size,
allocation_info.offset,
release_callback_function);
new_memory_block_ptr = Anvil::MemoryBlock::create(std::move(create_info_ptr) );
}
if (new_memory_block_ptr == nullptr)
{
anvil_assert(new_memory_block_ptr != nullptr);
result = false;
continue;
}
dynamic_cast<IMemoryBlockBackendSupport*>(new_memory_block_ptr.get() )->set_parent_memory_allocator_backend_ptr(shared_from_this(),
allocation);
current_item_ptr->alloc_memory_block_ptr = std::move(new_memory_block_ptr);
current_item_ptr->alloc_size = memory_requirements_vk.size;
current_item_ptr->is_baked = true;
m_vma_allocator_ptr->on_new_vma_mem_block_alloced();
}
return result;
}
/** For each specified Memory Allocator's Item, the function asks VMA for a memory region that
* can be assigned to corresponding wrapper instance. For each successfully handled request,
* a MemoryBlock instance is created, using the feedback provided by the library.
*
* This function can be called multiple times.
*
* @return true if all allocations have been handled successfully, false if there was at least
* one failure.
**/
bool Anvil::MemoryAllocatorBackends::VMA::bake(Anvil::MemoryAllocator::Items& in_items)
{
bool result = true;
VkResult result_vk = VK_ERROR_DEVICE_LOST;
/* Go through all scheduled items and call the underlying library API to handle the request.
*
* For each successful allocation, wrap it with a MemoryBlock wrapper with a custom delete
* handler, so that VMA is notified whenever a memory block it has provided memory backing for
* has gone out of scope.
*/
for (auto& current_item_ptr : in_items)
{
anvil_assert(current_item_ptr->memory_priority == FLT_MAX); /* VMA doesn't support memory_priority */
MemoryBlockUniquePtr new_memory_block_ptr(nullptr,
std::default_delete<Anvil::MemoryBlock>() );
VmaAllocation allocation = VK_NULL_HANDLE;
VmaAllocationCreateInfo allocation_create_info = {};
VmaAllocationInfo allocation_info = {};
bool is_dedicated_alloc = false;
VkMemoryRequirements memory_requirements_vk;
Anvil::OnMemoryBlockReleaseCallbackFunction release_callback_function;
Anvil::MemoryHeapFlags required_mem_heap_flags;
Anvil::MemoryPropertyFlags required_mem_property_flags;
Anvil::Utils::get_vk_property_flags_from_memory_feature_flags(current_item_ptr->alloc_memory_required_features,
&required_mem_property_flags,
&required_mem_heap_flags);
/* NOTE: VMA does not take required memory heap flags at the moment. Adding this is on their radar. */
anvil_assert(required_mem_heap_flags == Anvil::MemoryHeapFlagBits::NONE);
memory_requirements_vk.alignment = current_item_ptr->alloc_memory_required_alignment;
memory_requirements_vk.memoryTypeBits = current_item_ptr->alloc_memory_supported_memory_types;
memory_requirements_vk.size = current_item_ptr->alloc_size;
allocation_create_info.flags = (current_item_ptr->alloc_is_dedicated_memory) ? VmaAllocationCreateFlagBits::VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT
: 0;
allocation_create_info.requiredFlags = required_mem_property_flags.get_vk();
result_vk = vmaAllocateMemory(m_vma_allocator_ptr->get_handle(),
&memory_requirements_vk,
&allocation_create_info,
&allocation,
&allocation_info);
if (!is_vk_call_successful(result_vk) )
{
result = false;
continue;
}
else
{
is_dedicated_alloc = (allocation->GetType() == VmaAllocation_T::ALLOCATION_TYPE_DEDICATED);
}
/* Bake the block and stash it */
release_callback_function = std::bind(
&VMAAllocator::on_vma_alloced_mem_block_gone_out_of_scope,
m_vma_allocator_ptr,
std::placeholders::_1,
allocation
);
{
auto create_info_ptr = Anvil::MemoryBlockCreateInfo::create_derived_with_custom_delete_proc(m_device_ptr,
allocation_info.deviceMemory,
memory_requirements_vk.memoryTypeBits,
current_item_ptr->alloc_memory_required_features,
allocation_info.memoryType,
memory_requirements_vk.size,
allocation_info.offset,
release_callback_function);
if (is_dedicated_alloc)
{
if (current_item_ptr->type == Anvil::MemoryAllocator::ITEM_TYPE_BUFFER ||
current_item_ptr->type == Anvil::MemoryAllocator::ITEM_TYPE_SPARSE_BUFFER_REGION)
{
anvil_assert(current_item_ptr->buffer_ptr != nullptr);
create_info_ptr->use_dedicated_allocation(current_item_ptr->buffer_ptr,
nullptr); /* in_opt_image_ptr */
}
else
if (current_item_ptr->type == Anvil::MemoryAllocator::ITEM_TYPE_IMAGE_WHOLE ||
current_item_ptr->type == Anvil::MemoryAllocator::ITEM_TYPE_SPARSE_IMAGE_MIPTAIL ||
current_item_ptr->type == Anvil::MemoryAllocator::ITEM_TYPE_SPARSE_IMAGE_SUBRESOURCE)
{
anvil_assert(current_item_ptr->image_ptr != nullptr);
create_info_ptr->use_dedicated_allocation(nullptr, /* in_opt_buffer_ptr */
current_item_ptr->image_ptr);
}
}
new_memory_block_ptr = Anvil::MemoryBlock::create(std::move(create_info_ptr) );
}
if (new_memory_block_ptr == nullptr)
{
anvil_assert(new_memory_block_ptr != nullptr);
result = false;
continue;
}
dynamic_cast<IMemoryBlockBackendSupport*>(new_memory_block_ptr.get() )->set_parent_memory_allocator_backend_ptr(shared_from_this(),
allocation);
current_item_ptr->alloc_memory_block_ptr = std::move(new_memory_block_ptr);
current_item_ptr->alloc_size = memory_requirements_vk.size;
current_item_ptr->is_baked = true;
m_vma_allocator_ptr->on_new_vma_mem_block_alloced();
}
return result;
}