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Improved VmaBlockMetadata_Buddy when used as a virtual allocator, to support allocation sizes down to 1

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This commit is contained in:
Adam Sawicki 2021-10-30 12:26:09 +02:00
parent fc23b9da1f
commit 455823fcbf
1 changed files with 3 additions and 3 deletions
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6
include/vk_mem_alloc.h
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@ -5538,8 +5538,7 @@ public:
virtual void SetAllocationUserData(VkDeviceSize offset, void* userData); virtual void SetAllocationUserData(VkDeviceSize offset, void* userData);
private: private:
static const VkDeviceSize MIN_NODE_SIZE = 32; static const size_t MAX_LEVELS = 48;
static const size_t MAX_LEVELS = 30;
static VkDeviceSize AlignAllocationSize(VkDeviceSize size) { return VmaNextPow2(size); } static VkDeviceSize AlignAllocationSize(VkDeviceSize size) { return VmaNextPow2(size); }
@ -10687,9 +10686,10 @@ void VmaBlockMetadata_Buddy::Init(VkDeviceSize size)
m_SumFreeSize = m_UsableSize; m_SumFreeSize = m_UsableSize;
// Calculate m_LevelCount. // Calculate m_LevelCount.
const VkDeviceSize minNodeSize = IsVirtual() ? 1 : 16;
m_LevelCount = 1; m_LevelCount = 1;
while(m_LevelCount < MAX_LEVELS && while(m_LevelCount < MAX_LEVELS &&
LevelToNodeSize(m_LevelCount) >= MIN_NODE_SIZE) LevelToNodeSize(m_LevelCount) >= minNodeSize)
{ {
++m_LevelCount; ++m_LevelCount;
} }