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Ensured that allocations from pools with linear algorithm are ignored in vmaDefragment.

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Made vmaDefragment work only with memory types that are HOST_VISIBLE and HOST_COHERENT.
This commit is contained in:
Adam Sawicki 2018-08-23 12:56:58 +02:00
parent 0270b98d2f
commit d0100e9d1a
1 changed files with 25 additions and 12 deletions
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37
src/vk_mem_alloc.h
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@ -2286,10 +2286,14 @@ usage. Only allocations that are in pAllocations array can be moved. All other
allocations are considered nonmovable in this call. Basic rules:
- Only allocations made in memory types that have
`VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT` flag can be compacted. You may pass other
allocations but it makes no sense - these will never be moved.
- You may pass allocations made with #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT but
it makes no sense - they will never be moved.
`VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT` and `VK_MEMORY_PROPERTY_HOST_COHERENT_BIT`
flags can be compacted. You may pass other allocations but it makes no sense -
these will never be moved.
- Custom pools created with #VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT flag are not
defragmented. Allocations passed to this function that come from such pools
are ignored.
- Allocations created with #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT or
created as dedicated allocations for any other reason are also ignored.
- Both allocations made with or without #VMA_ALLOCATION_CREATE_MAPPED_BIT
flag can be compacted. If not persistently mapped, memory will be mapped
temporarily inside this function if needed.
@ -9971,6 +9975,7 @@ VmaDefragmentator::VmaDefragmentator(
m_Allocations(VmaStlAllocator<AllocationInfo>(hAllocator->GetAllocationCallbacks())),
m_Blocks(VmaStlAllocator<BlockInfo*>(hAllocator->GetAllocationCallbacks()))
{
VMA_ASSERT(!pBlockVector->UsesLinearAlgorithm());
}
VmaDefragmentator::~VmaDefragmentator()
@ -11470,9 +11475,10 @@ VkResult VmaAllocator_T::Defragment(
VMA_ASSERT(hAlloc);
const uint32_t memTypeIndex = hAlloc->GetMemoryTypeIndex();
// DedicatedAlloc cannot be defragmented.
const VkMemoryPropertyFlags requiredMemFlags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
if((hAlloc->GetType() == VmaAllocation_T::ALLOCATION_TYPE_BLOCK) &&
// Only HOST_VISIBLE memory types can be defragmented.
((m_MemProps.memoryTypes[memTypeIndex].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0) &&
// Only HOST_VISIBLE and HOST_COHERENT memory types can be defragmented.
((m_MemProps.memoryTypes[memTypeIndex].propertyFlags & requiredMemFlags) == requiredMemFlags) &&
// Lost allocation cannot be defragmented.
(hAlloc->GetLastUseFrameIndex() != VMA_FRAME_INDEX_LOST))
{
@ -11482,7 +11488,11 @@ VkResult VmaAllocator_T::Defragment(
// This allocation belongs to custom pool.
if(hAllocPool != VK_NULL_HANDLE)
{
pAllocBlockVector = &hAllocPool->GetBlockVector();
// Pools with linear algorithm are not defragmented.
if(!hAllocPool->m_BlockVector.UsesLinearAlgorithm())
{
pAllocBlockVector = &hAllocPool->GetBlockVector();
}
}
// This allocation belongs to general pool.
else
@ -11490,11 +11500,14 @@ VkResult VmaAllocator_T::Defragment(
pAllocBlockVector = m_pBlockVectors[memTypeIndex];
}
VmaDefragmentator* const pDefragmentator = pAllocBlockVector->EnsureDefragmentator(this, currentFrameIndex);
VkBool32* const pChanged = (pAllocationsChanged != VMA_NULL) ?
&pAllocationsChanged[allocIndex] : VMA_NULL;
pDefragmentator->AddAllocation(hAlloc, pChanged);
if(pAllocBlockVector != VMA_NULL)
{
VmaDefragmentator* const pDefragmentator =
pAllocBlockVector->EnsureDefragmentator(this, currentFrameIndex);
VkBool32* const pChanged = (pAllocationsChanged != VMA_NULL) ?
&pAllocationsChanged[allocIndex] : VMA_NULL;
pDefragmentator->AddAllocation(hAlloc, pChanged);
}
}
}