VkBufferCreateInfo: Prefer to pass same parameters as above. Otherwise you risk creating resources in a memory type that is not suitable for them, which may result in undefined behavior. Using different VK_BUFFER_USAGE_ flags may work, but you shouldn't create images in a pool intended for buffers or the other way around.When you free some allocations from the beginning and there is not enough free space for a new one at the end of a pool, allocator's "cursor" wraps around to the beginning and starts allocation there. Thanks to this, if you always release allocations in the same order as you created them (FIFO - First In First Out), you can achieve behavior of a ring buffer / queue.
Ring buffer is available only in pools with one memory block - VmaPoolCreateInfo::maxBlockCount must be 1. Otherwise behavior is undefined.
--Buddy allocation algorithm
-There is another allocation algorithm that can be used with custom pools, called "buddy". Its internal data structure is based on a binary tree of blocks, each having size that is a power of two and a half of its parent's size. When you want to allocate memory of certain size, a free node in the tree is located. If it is too large, it is recursively split into two halves (called "buddies"). However, if requested allocation size is not a power of two, the size of the allocation is aligned up to the nearest power of two and the remaining space is wasted. When two buddy nodes become free, they are merged back into one larger node.
-
The advantage of buddy allocation algorithm over default algorithm is faster allocation and deallocation, as well as smaller external fragmentation. The disadvantage is more wasted space (internal fragmentation). For more information, please search the Internet for "Buddy memory allocation" - sources that describe this concept in general.
-To use buddy allocation algorithm with a custom pool, add flag VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT to VmaPoolCreateInfo::flags while creating VmaPool object.
-Several limitations apply to pools that use buddy algorithm:
--
-
- It is recommended to use VmaPoolCreateInfo::blockSize that is a power of two. Otherwise, only largest power of two smaller than the size is used for allocations. The remaining space always stays unused. -
- Margins and corruption detection don't work in such pools. -
- Defragmentation doesn't work with allocations made from such pool. -
Ring buffer is available only in pools with one memory block - VmaPoolCreateInfo::maxBlockCount must be 1. Otherwise behavior is undefined.
diff --git a/docs/html/debugging_memory_usage.html b/docs/html/debugging_memory_usage.html index bcff6dc..f9c0301 100644 --- a/docs/html/debugging_memory_usage.html +++ b/docs/html/debugging_memory_usage.html @@ -88,7 +88,7 @@ Margins
If your bug goes away after enabling margins, it means it may be caused by memory being overwritten outside of allocation boundaries. It is not 100% certain though. Change in application behavior may also be caused by different order and distribution of allocations across memory blocks after margins are applied.
Margins work with all types of memory.
-Margin is applied only to allocations made out of memory blocks and not to dedicated allocations, which have their own memory block of specific size. It is thus not applied to allocations made using VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT flag or those automatically decided to put into dedicated allocations, e.g. due to its large size or recommended by VK_KHR_dedicated_allocation extension. Margins are also not active in custom pools created with VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT flag.
+Margin is applied only to allocations made out of memory blocks and not to dedicated allocations, which have their own memory block of specific size. It is thus not applied to allocations made using VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT flag or those automatically decided to put into dedicated allocations, e.g. due to its large size or recommended by VK_KHR_dedicated_allocation extension.
Margins appear in JSON dump as part of free space.
Note that enabling margins increases memory usage and fragmentation.
Margins do not apply to Virtual allocator.
diff --git a/docs/html/defragmentation.html b/docs/html/defragmentation.html index f5ce460..5c9a878 100644 --- a/docs/html/defragmentation.html +++ b/docs/html/defragmentation.html @@ -70,164 +70,55 @@ $(function() {Interleaved allocations and deallocations of many objects of varying size can cause fragmentation over time, which can lead to a situation where the library is unable to find a continuous range of free memory for a new allocation despite there is enough free space, just scattered across many small free ranges between existing allocations.
-To mitigate this problem, you can use defragmentation feature: structure VmaDefragmentationInfo2, function vmaDefragmentationBegin(), vmaDefragmentationEnd(). Given set of allocations, this function can move them to compact used memory, ensure more continuous free space and possibly also free some VkDeviceMemory blocks.
What the defragmentation does is:
--
-
- Updates VmaAllocation objects to point to new
VkDeviceMemoryand offset. After allocation has been moved, its VmaAllocationInfo::deviceMemory and/or VmaAllocationInfo::offset changes. You must query them again using vmaGetAllocationInfo() if you need them.
- - Moves actual data in memory. -
What it doesn't do, so you need to do it yourself:
--
-
- Recreate buffers and images that were bound to allocations that were defragmented and bind them with their new places in memory. You must use
vkDestroyBuffer(),vkDestroyImage(),vkCreateBuffer(),vkCreateImage(), vmaBindBufferMemory(), vmaBindImageMemory() for that purpose and NOT vmaDestroyBuffer(), vmaDestroyImage(), vmaCreateBuffer(), vmaCreateImage(), because you don't need to destroy or create allocation objects!
- - Recreate views and update descriptors that point to these buffers and images. -
-Defragmenting CPU memory
-Following example demonstrates how you can run defragmentation on CPU. Only allocations created in memory types that are HOST_VISIBLE can be defragmented. Others are ignored.
The way it works is:
--
-
- It temporarily maps entire memory blocks when necessary. -
- It moves data using
memmove()function.
-
// Given following variables already initialized:
-VkDevice device;
-VmaAllocator allocator;
-std::vector<VkBuffer> buffers;
-std::vector<VmaAllocation> allocations;
-const uint32_t allocCount = (uint32_t)allocations.size();
-std::vector<VkBool32> allocationsChanged(allocCount);
-VmaDefragmentationInfo2 defragInfo = {};
-defragInfo.allocationCount = allocCount;
-defragInfo.pAllocations = allocations.data();
-defragInfo.pAllocationsChanged = allocationsChanged.data();
-defragInfo.maxCpuBytesToMove = VK_WHOLE_SIZE; // No limit.
-defragInfo.maxCpuAllocationsToMove = UINT32_MAX; // No limit.
-VmaDefragmentationContext defragCtx;
-vmaDefragmentationBegin(allocator, &defragInfo, nullptr, &defragCtx);
-vmaDefragmentationEnd(allocator, defragCtx);
-for(uint32_t i = 0; i < allocCount; ++i)
-{
- if(allocationsChanged[i])
- {
- // Destroy buffer that is immutably bound to memory region which is no longer valid.
- vkDestroyBuffer(device, buffers[i], nullptr);
- // Create new buffer with same parameters.
- VkBufferCreateInfo bufferInfo = ...;
- vkCreateBuffer(device, &bufferInfo, nullptr, &buffers[i]);
- // You can make dummy call to vkGetBufferMemoryRequirements here to silence validation layer warning.
- // Bind new buffer to new memory region. Data contained in it is already moved.
- VmaAllocationInfo allocInfo;
- vmaGetAllocationInfo(allocator, allocations[i], &allocInfo);
- vmaBindBufferMemory(allocator, allocations[i], buffers[i]);
- }
-}
-VkResult vmaDefragmentationBegin(VmaAllocator allocator, const VmaDefragmentationInfo2 *pInfo, VmaDefragmentationStats *pStats, VmaDefragmentationContext *pContext)
Begins defragmentation process.
VkResult vmaBindBufferMemory(VmaAllocator allocator, VmaAllocation allocation, VkBuffer buffer)
Binds buffer to allocation.
void vmaGetAllocationInfo(VmaAllocator allocator, VmaAllocation allocation, VmaAllocationInfo *pAllocationInfo)
Returns current information about specified allocation.
VkResult vmaDefragmentationEnd(VmaAllocator allocator, VmaDefragmentationContext context)
Ends defragmentation process.
Parameters of VmaAllocation objects, that can be retrieved using function vmaGetAllocationInfo().
Definition: vk_mem_alloc.h:1333
Represents main object of this library initialized.
Represents Opaque object that represents started defragmentation process.
uint32_t allocationCount
Number of allocations in pAllocations array.
Definition: vk_mem_alloc.h:1394
VkBool32 * pAllocationsChanged
Optional, output. Pointer to array that will be filled with information whether the allocation at cer...
Definition: vk_mem_alloc.h:1408
uint32_t maxCpuAllocationsToMove
Maximum number of allocations that can be moved to a different place using transfers on CPU side,...
Definition: vk_mem_alloc.h:1437
const VmaAllocation * pAllocations
Pointer to array of allocations that can be defragmented.
Definition: vk_mem_alloc.h:1402
VkDeviceSize maxCpuBytesToMove
Maximum total numbers of bytes that can be copied while moving allocations to different places using ...
Definition: vk_mem_alloc.h:1432
Setting VmaDefragmentationInfo2::pAllocationsChanged is optional. This output array tells whether particular allocation in VmaDefragmentationInfo2::pAllocations at the same index has been modified during defragmentation. You can pass null, but you then need to query every allocation passed to defragmentation for new parameters using vmaGetAllocationInfo() if you might need to recreate and rebind a buffer or image associated with it.
-If you use Custom memory pools, you can fill VmaDefragmentationInfo2::poolCount and VmaDefragmentationInfo2::pPools instead of VmaDefragmentationInfo2::allocationCount and VmaDefragmentationInfo2::pAllocations to defragment all allocations in given pools. You cannot use VmaDefragmentationInfo2::pAllocationsChanged in that case. You can also combine both methods.
--Defragmenting GPU memory
-It is also possible to defragment allocations created in memory types that are not HOST_VISIBLE. To do that, you need to pass a command buffer that meets requirements as described in VmaDefragmentationInfo2::commandBuffer. The way it works is:
-
-
- It creates temporary buffers and binds them to entire memory blocks when necessary. -
- It issues
vkCmdCopyBuffer()to passed command buffer.
-
To mitigate this problem, you can use defragmentation feature. It doesn't happen automatically thought and needs your cooperation, because VMA is a low level library that only allocates memory. It cannot recreate buffers and images in a new place as it doesn't remember the contents of VkBufferCreateInfo / VkImageCreateInfo structures. It cannot copy their contents as it doesn't record any commands to a command buffer.
Example:
-// Given following variables already initialized:
-VkDevice device;
-VmaAllocator allocator;
-VkCommandBuffer commandBuffer;
-std::vector<VkBuffer> buffers;
-std::vector<VmaAllocation> allocations;
-const uint32_t allocCount = (uint32_t)allocations.size();
-std::vector<VkBool32> allocationsChanged(allocCount);
-VkCommandBufferBeginInfo cmdBufBeginInfo = ...;
-vkBeginCommandBuffer(commandBuffer, &cmdBufBeginInfo);
-VmaDefragmentationInfo2 defragInfo = {};
-defragInfo.allocationCount = allocCount;
-defragInfo.pAllocations = allocations.data();
-defragInfo.pAllocationsChanged = allocationsChanged.data();
-defragInfo.maxGpuBytesToMove = VK_WHOLE_SIZE; // Notice it is "GPU" this time.
-defragInfo.maxGpuAllocationsToMove = UINT32_MAX; // Notice it is "GPU" this time.
-defragInfo.commandBuffer = commandBuffer;
+VmaDefragmentationInfo defragInfo = {};
+defragInfo.pool = myPool;
+defragInfo.flags = VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT;
VmaDefragmentationContext defragCtx;
-vmaDefragmentationBegin(allocator, &defragInfo, nullptr, &defragCtx);
+VkResult res = vmaBeginDefragmentation(allocator, &defragInfo, &defragCtx);
+// Check res...
vkEndCommandBuffer(commandBuffer);
-// Submit commandBuffer.
-// Wait for a fence that ensures commandBuffer execution finished.
-vmaDefragmentationEnd(allocator, defragCtx);
-for(uint32_t i = 0; i < allocCount; ++i)
+for(;;)
{
- if(allocationsChanged[i])
+
+ res = vmaBeginDefragmentationPass(allocator, defragCtx, &pass);
+ if(res == VK_SUCCESS)
+ break;
+ else if(res == VK_INCOMPLETE)
{
- // Destroy buffer that is immutably bound to memory region which is no longer valid.
- vkDestroyBuffer(device, buffers[i], nullptr);
- // Create new buffer with same parameters.
- VkBufferCreateInfo bufferInfo = ...;
- vkCreateBuffer(device, &bufferInfo, nullptr, &buffers[i]);
- // You can make dummy call to vkGetBufferMemoryRequirements here to silence validation layer warning.
- // Bind new buffer to new memory region. Data contained in it is already moved.
- VmaAllocationInfo allocInfo;
- vmaGetAllocationInfo(allocator, allocations[i], &allocInfo);
- vmaBindBufferMemory(allocator, allocations[i], buffers[i]);
+ for(uint32_t i = 0; i < pass.moveCount; ++i)
+ {
+ //- Inspect pass.pMoves[i].srcAllocation, identify what buffer or image it represents.
+ //- Recreate this buffer or image at pass.pMoves[i].dstMemory, pass.pMoves[i].dstOffset.
+ //- Issue a vkCmdCopyBuffer/vkCmdCopyImage to copy its content to the new place.
+ }
+ //- Make sure the copy commands finished executing.
+ //- Update appropriate descriptors to point to the new places.
+ vmaEndDefragmentationPass(allocator, defragCtx, &pass);
}
+ else
+ // Handle error...
}
-uint32_t maxGpuAllocationsToMove
Maximum number of allocations that can be moved to a different place using transfers on GPU side,...
Definition: vk_mem_alloc.h:1447
VkDeviceSize maxGpuBytesToMove
Maximum total numbers of bytes that can be copied while moving allocations to different places using ...
Definition: vk_mem_alloc.h:1442
VkCommandBuffer commandBuffer
Optional. Command buffer where GPU copy commands will be posted.
Definition: vk_mem_alloc.h:1456
You can combine these two methods by specifying non-zero maxGpu* as well as maxCpu* parameters. The library automatically chooses best method to defragment each memory pool.
You may try not to block your entire program to wait until defragmentation finishes, but do it in the background, as long as you carefully fullfill requirements described in function vmaDefragmentationBegin().
--Additional notes
-It is only legal to defragment allocations bound to:
--
-
- buffers -
- images created with
VK_IMAGE_CREATE_ALIAS_BIT,VK_IMAGE_TILING_LINEAR, and being currently inVK_IMAGE_LAYOUT_GENERALorVK_IMAGE_LAYOUT_PREINITIALIZED.
-
Defragmentation of images created with VK_IMAGE_TILING_OPTIMAL or in any other layout may give undefined results.
If you defragment allocations bound to images, new images to be bound to new memory region after defragmentation should be created with VK_IMAGE_LAYOUT_PREINITIALIZED and then transitioned to their original layout from before defragmentation if needed using an image memory barrier.
While using defragmentation, you may experience validation layer warnings, which you just need to ignore. See Validation layer warnings.
-Please don't expect memory to be fully compacted after defragmentation. Algorithms inside are based on some heuristics that try to maximize number of Vulkan memory blocks to make totally empty to release them, as well as to maximize continuous empty space inside remaining blocks, while minimizing the number and size of allocations that need to be moved. Some fragmentation may still remain - this is normal.
--Writing custom defragmentation algorithm
-If you want to implement your own, custom defragmentation algorithm, there is infrastructure prepared for that, but it is not exposed through the library API - you need to hack its source code. Here are steps needed to do this:
--
-
- Main thing you need to do is to define your own class derived from base abstract class
VmaDefragmentationAlgorithmand implement your version of its pure virtual methods. See definition and comments of this class for details.
- - Your code needs to interact with device memory block metadata. If you need more access to its data than it is provided by its public interface, declare your new class as a friend class e.g. in class
VmaBlockMetadata_Generic.
- - If you want to create a flag that would enable your algorithm or pass some additional flags to configure it, add them to
VmaDefragmentationFlagBitsand use them in VmaDefragmentationInfo2::flags.
- - Modify function
VmaBlockVectorDefragmentationContext::Beginto create object of your new class whenever needed.
-
vmaEndDefragmentation(allocator, defragCtx, nullptr);
+VkResult vmaEndDefragmentation(VmaAllocator allocator, VmaDefragmentationContext context, VmaDefragmentationStats *pStats)
Ends defragmentation process.
VkResult vmaBeginDefragmentationPass(VmaAllocator allocator, VmaDefragmentationContext context, VmaDefragmentationPassMoveInfo *pPassInfo)
Starts single defragmentation pass.
VkResult vmaBeginDefragmentation(VmaAllocator allocator, const VmaDefragmentationInfo *pInfo, VmaDefragmentationContext *pContext)
Begins defragmentation process.
VkResult vmaEndDefragmentationPass(VmaAllocator allocator, VmaDefragmentationContext context, VmaDefragmentationPassMoveInfo *pPassInfo)
Ends single defragmentation pass.
@ VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT
Definition: vk_mem_alloc.h:700
An opaque object that represents started defragmentation process.
VmaPool pool
Custom pool to be defragmented.
Definition: vk_mem_alloc.h:1388
VmaDefragmentationFlags flags
Use combination of VmaDefragmentationFlagBits.
Definition: vk_mem_alloc.h:1383
Parameters for incremental defragmentation steps.
Definition: vk_mem_alloc.h:1421
uint32_t moveCount
Number of elements in the pMoves array.
Definition: vk_mem_alloc.h:1423
You can defragment a specific custom pool by setting VmaDefragmentationInfo::pool (like in the example above) or all the default pools by setting this member to null.
+Unlike in previous iterations of the defragmentation API, there is no list of "movable" allocations passed as a parameter. Defragmentation algorithm tries to move all suitable allocations. You can, however, refuse to move some of them inside a defragmentation pass, by setting pass.pMoves[i].operation to VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE. However, this is not recommended and may result in suboptimal packing of the allocations after defragmentation. If you cannot ensure any allocation can be moved, it is better to keep movable allocations separate in a custom pool.
You can also decide to destroy an allocation instead of moving it. You should then set pass.pMoves[i].operation to VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY.
You can perform the defragmentation incrementally to limit the number of allocations and bytes to be moved in each pass, e.g. to call it in sync with render frames and not to experience too big hitches. See members: VmaDefragmentationInfo::maxBytesPerPass, VmaDefragmentationInfo::maxAllocationsPerPass.
+It is also safe to perform the defragmentation asynchronously to render frames and other Vulkan and VMA usage, possibly from multiple threads, with the exception that allocations returned in VmaDefragmentationPassMoveInfo::pMoves shouldn't be destroyed until the defragmentation pass is ended.
- Member VMA_ALLOCATION_CREATE_RESERVED_1_BIT -
- Removed. Do not use. +
- Removed. Do not use.
- Member VMA_ALLOCATION_CREATE_RESERVED_2_BIT -
- Removed. Do not use. +
- Removed. Do not use.
- Member VMA_MEMORY_USAGE_CPU_COPY -
- Obsolete, preserved for backward compatibility. Prefers not
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT.
+ - Obsolete, preserved for backward compatibility. Prefers not
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT. - Member VMA_MEMORY_USAGE_CPU_ONLY -
- Obsolete, preserved for backward compatibility. Guarantees
VK_MEMORY_PROPERTY_HOST_VISIBLE_BITandVK_MEMORY_PROPERTY_HOST_COHERENT_BIT.
+ - Obsolete, preserved for backward compatibility. Guarantees
VK_MEMORY_PROPERTY_HOST_VISIBLE_BITandVK_MEMORY_PROPERTY_HOST_COHERENT_BIT. - Member VMA_MEMORY_USAGE_CPU_TO_GPU -
- Obsolete, preserved for backward compatibility. Guarantees
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, prefersVK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT.
+ - Obsolete, preserved for backward compatibility. Guarantees
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, prefersVK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT. - Member VMA_MEMORY_USAGE_GPU_ONLY -
- Obsolete, preserved for backward compatibility. Prefers
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT.
+ - Obsolete, preserved for backward compatibility. Prefers
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT. - Member VMA_MEMORY_USAGE_GPU_TO_CPU -
- Obsolete, preserved for backward compatibility. Guarantees
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, prefersVK_MEMORY_PROPERTY_HOST_CACHED_BIT.
- - Member vmaDefragment (VmaAllocator allocator, const VmaAllocation *pAllocations, size_t allocationCount, VkBool32 *pAllocationsChanged, const VmaDefragmentationInfo *pDefragmentationInfo, VmaDefragmentationStats *pDefragmentationStats) -
- This is a part of the old interface. It is recommended to use structure VmaDefragmentationInfo2 and function vmaDefragmentationBegin() instead. -
- Member VmaDefragmentationInfo -
- This is a part of the old interface. It is recommended to use structure VmaDefragmentationInfo2 and function vmaDefragmentationBegin() instead. +
- Obsolete, preserved for backward compatibility. Guarantees
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, prefersVK_MEMORY_PROPERTY_HOST_CACHED_BIT.
- a -
- alignment : VmaVirtualAllocationCreateInfo -
- allocation : VmaDefragmentationPassMoveInfo
- allocationBytes : VmaStatistics -
- allocationCount : VmaDefragmentationInfo2, VmaStatistics +
- allocationCount : VmaStatistics
- allocationSizeMax : VmaDetailedStatistics
- allocationSizeMin : VmaDetailedStatistics
- allocationsMoved : VmaDefragmentationStats @@ -85,56 +84,48 @@ $(function() {
- c -
-
-
- commandBuffer : VmaDefragmentationInfo2 -
- d -
- device : VmaAllocatorCreateInfo, VmaAllocatorInfo
- deviceMemory : VmaAllocationInfo
- deviceMemoryBlocksFreed : VmaDefragmentationStats +
- dstMemory : VmaDefragmentationMove +
- dstOffset : VmaDefragmentationMove
- f -
-
-
- flags : VmaAllocationCreateInfo, VmaAllocatorCreateInfo, VmaDefragmentationInfo2, VmaPoolCreateInfo, VmaVirtualAllocationCreateInfo, VmaVirtualBlockCreateInfo +
- flags : VmaAllocationCreateInfo, VmaAllocatorCreateInfo, VmaDefragmentationInfo, VmaPoolCreateInfo, VmaVirtualAllocationCreateInfo, VmaVirtualBlockCreateInfo
- i -
- instance : VmaAllocatorCreateInfo, VmaAllocatorInfo +
- internalData : VmaDefragmentationMove
- m -
-
-
- maxAllocationsToMove : VmaDefragmentationInfo +
- maxAllocationsPerPass : VmaDefragmentationInfo
- maxBlockCount : VmaPoolCreateInfo -
- maxBytesToMove : VmaDefragmentationInfo -
- maxCpuAllocationsToMove : VmaDefragmentationInfo2 -
- maxCpuBytesToMove : VmaDefragmentationInfo2 -
- maxGpuAllocationsToMove : VmaDefragmentationInfo2 -
- maxGpuBytesToMove : VmaDefragmentationInfo2 -
- memory : VmaDefragmentationPassMoveInfo +
- maxBytesPerPass : VmaDefragmentationInfo
- memoryHeap : VmaTotalStatistics
- memoryType : VmaAllocationInfo, VmaTotalStatistics
- memoryTypeBits : VmaAllocationCreateInfo
- memoryTypeIndex : VmaPoolCreateInfo
- minAllocationAlignment : VmaPoolCreateInfo
- minBlockCount : VmaPoolCreateInfo -
- moveCount : VmaDefragmentationPassInfo +
- moveCount : VmaDefragmentationPassMoveInfo
- o -
-
-
- offset : VmaAllocationInfo, VmaDefragmentationPassMoveInfo, VmaVirtualAllocationInfo +
- offset : VmaAllocationInfo, VmaVirtualAllocationInfo +
- operation : VmaDefragmentationMove
- p -
- pAllocationCallbacks : VmaAllocatorCreateInfo, VmaVirtualBlockCreateInfo -
- pAllocations : VmaDefragmentationInfo2 -
- pAllocationsChanged : VmaDefragmentationInfo2
- pDeviceMemoryCallbacks : VmaAllocatorCreateInfo
- pfnAllocate : VmaDeviceMemoryCallbacks
- pfnFree : VmaDeviceMemoryCallbacks @@ -142,10 +133,8 @@ $(function() {
- physicalDevice : VmaAllocatorCreateInfo, VmaAllocatorInfo
- pMappedData : VmaAllocationInfo
- pMemoryAllocateNext : VmaPoolCreateInfo -
- pMoves : VmaDefragmentationPassInfo -
- pool : VmaAllocationCreateInfo -
- poolCount : VmaDefragmentationInfo2 -
- pPools : VmaDefragmentationInfo2 +
- pMoves : VmaDefragmentationPassMoveInfo +
- pool : VmaAllocationCreateInfo, VmaDefragmentationInfo
- preferredFlags : VmaAllocationCreateInfo
- preferredLargeHeapBlockSize : VmaAllocatorCreateInfo
- priority : VmaAllocationCreateInfo, VmaPoolCreateInfo @@ -162,6 +151,7 @@ $(function() {
- size : VmaAllocationInfo, VmaVirtualAllocationCreateInfo, VmaVirtualAllocationInfo, VmaVirtualBlockCreateInfo +
- srcAllocation : VmaDefragmentationMove
- statistics : VmaBudget, VmaDetailedStatistics
- alignment : VmaVirtualAllocationCreateInfo -
- allocation : VmaDefragmentationPassMoveInfo
- allocationBytes : VmaStatistics -
- allocationCount : VmaDefragmentationInfo2, VmaStatistics +
- allocationCount : VmaStatistics
- allocationSizeMax : VmaDetailedStatistics
- allocationSizeMin : VmaDetailedStatistics
- allocationsMoved : VmaDefragmentationStats @@ -85,56 +84,48 @@ $(function() {
- commandBuffer : VmaDefragmentationInfo2 -
- device : VmaAllocatorCreateInfo, VmaAllocatorInfo
- deviceMemory : VmaAllocationInfo
- deviceMemoryBlocksFreed : VmaDefragmentationStats +
- dstMemory : VmaDefragmentationMove +
- dstOffset : VmaDefragmentationMove
- flags : VmaAllocationCreateInfo, VmaAllocatorCreateInfo, VmaDefragmentationInfo2, VmaPoolCreateInfo, VmaVirtualAllocationCreateInfo, VmaVirtualBlockCreateInfo +
- flags : VmaAllocationCreateInfo, VmaAllocatorCreateInfo, VmaDefragmentationInfo, VmaPoolCreateInfo, VmaVirtualAllocationCreateInfo, VmaVirtualBlockCreateInfo
- instance : VmaAllocatorCreateInfo, VmaAllocatorInfo +
- internalData : VmaDefragmentationMove
- maxAllocationsToMove : VmaDefragmentationInfo +
- maxAllocationsPerPass : VmaDefragmentationInfo
- maxBlockCount : VmaPoolCreateInfo -
- maxBytesToMove : VmaDefragmentationInfo -
- maxCpuAllocationsToMove : VmaDefragmentationInfo2 -
- maxCpuBytesToMove : VmaDefragmentationInfo2 -
- maxGpuAllocationsToMove : VmaDefragmentationInfo2 -
- maxGpuBytesToMove : VmaDefragmentationInfo2 -
- memory : VmaDefragmentationPassMoveInfo +
- maxBytesPerPass : VmaDefragmentationInfo
- memoryHeap : VmaTotalStatistics
- memoryType : VmaAllocationInfo, VmaTotalStatistics
- memoryTypeBits : VmaAllocationCreateInfo
- memoryTypeIndex : VmaPoolCreateInfo
- minAllocationAlignment : VmaPoolCreateInfo
- minBlockCount : VmaPoolCreateInfo -
- moveCount : VmaDefragmentationPassInfo +
- moveCount : VmaDefragmentationPassMoveInfo
- offset : VmaAllocationInfo, VmaDefragmentationPassMoveInfo, VmaVirtualAllocationInfo +
- offset : VmaAllocationInfo, VmaVirtualAllocationInfo +
- operation : VmaDefragmentationMove
- pAllocationCallbacks : VmaAllocatorCreateInfo, VmaVirtualBlockCreateInfo -
- pAllocations : VmaDefragmentationInfo2 -
- pAllocationsChanged : VmaDefragmentationInfo2
- pDeviceMemoryCallbacks : VmaAllocatorCreateInfo
- pfnAllocate : VmaDeviceMemoryCallbacks
- pfnFree : VmaDeviceMemoryCallbacks @@ -142,10 +133,8 @@ $(function() {
- physicalDevice : VmaAllocatorCreateInfo, VmaAllocatorInfo
- pMappedData : VmaAllocationInfo
- pMemoryAllocateNext : VmaPoolCreateInfo -
- pMoves : VmaDefragmentationPassInfo -
- pool : VmaAllocationCreateInfo -
- poolCount : VmaDefragmentationInfo2 -
- pPools : VmaDefragmentationInfo2 +
- pMoves : VmaDefragmentationPassMoveInfo +
- pool : VmaAllocationCreateInfo, VmaDefragmentationInfo
- preferredFlags : VmaAllocationCreateInfo
- preferredLargeHeapBlockSize : VmaAllocatorCreateInfo
- priority : VmaAllocationCreateInfo, VmaPoolCreateInfo @@ -162,6 +151,7 @@ $(function() {
- size : VmaAllocationInfo, VmaVirtualAllocationCreateInfo, VmaVirtualAllocationInfo, VmaVirtualBlockCreateInfo +
- srcAllocation : VmaDefragmentationMove
- statistics : VmaBudget, VmaDetailedStatistics
- VMA_ALLOCATION_CREATE_STRATEGY_FIRST_FIT_BIT : vk_mem_alloc.h
- VMA_ALLOCATION_CREATE_STRATEGY_MASK : vk_mem_alloc.h
- VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT : vk_mem_alloc.h +
- VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT : vk_mem_alloc.h
- VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT : vk_mem_alloc.h
- VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT : vk_mem_alloc.h
- VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT : vk_mem_alloc.h @@ -102,8 +103,15 @@ $(function() {
- VMA_BIND_MEMORY2 : vk_mem_alloc.h
- VMA_BUFFER_DEVICE_ADDRESS : vk_mem_alloc.h
- VMA_DEDICATED_ALLOCATION : vk_mem_alloc.h +
- VMA_DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED_BIT : vk_mem_alloc.h +
- VMA_DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT : vk_mem_alloc.h +
- VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT : vk_mem_alloc.h +
- VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT : vk_mem_alloc.h +
- VMA_DEFRAGMENTATION_FLAG_ALGORITHM_MASK : vk_mem_alloc.h
- VMA_DEFRAGMENTATION_FLAG_BITS_MAX_ENUM : vk_mem_alloc.h -
- VMA_DEFRAGMENTATION_FLAG_INCREMENTAL : vk_mem_alloc.h +
- VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY : vk_mem_alloc.h +
- VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY : vk_mem_alloc.h +
- VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE : vk_mem_alloc.h
- VMA_MEMORY_BUDGET : vk_mem_alloc.h
- VMA_MEMORY_USAGE_AUTO : vk_mem_alloc.h
- VMA_MEMORY_USAGE_AUTO_PREFER_DEVICE : vk_mem_alloc.h @@ -117,22 +125,19 @@ $(function() {
- VMA_MEMORY_USAGE_MAX_ENUM : vk_mem_alloc.h
- VMA_MEMORY_USAGE_UNKNOWN : vk_mem_alloc.h
- VMA_POOL_CREATE_ALGORITHM_MASK : vk_mem_alloc.h -
- VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT : vk_mem_alloc.h
- VMA_POOL_CREATE_FLAG_BITS_MAX_ENUM : vk_mem_alloc.h
- VMA_POOL_CREATE_IGNORE_BUFFER_IMAGE_GRANULARITY_BIT : vk_mem_alloc.h
- VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT : vk_mem_alloc.h -
- VMA_POOL_CREATE_TLSF_ALGORITHM_BIT : vk_mem_alloc.h
- VMA_STATS_STRING_ENABLED : vk_mem_alloc.h
- VMA_VIRTUAL_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM : vk_mem_alloc.h
- VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MASK : vk_mem_alloc.h
- VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT : vk_mem_alloc.h
- VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT : vk_mem_alloc.h +
- VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_PACKED_BIT : vk_mem_alloc.h
- VMA_VIRTUAL_ALLOCATION_CREATE_UPPER_ADDRESS_BIT : vk_mem_alloc.h
- VMA_VIRTUAL_BLOCK_CREATE_ALGORITHM_MASK : vk_mem_alloc.h -
- VMA_VIRTUAL_BLOCK_CREATE_BUDDY_ALGORITHM_BIT : vk_mem_alloc.h
- VMA_VIRTUAL_BLOCK_CREATE_FLAG_BITS_MAX_ENUM : vk_mem_alloc.h
- VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT : vk_mem_alloc.h -
- VMA_VIRTUAL_BLOCK_CREATE_TLSF_ALGORITHM_BIT : vk_mem_alloc.h
- vmaAllocateMemory() : vk_mem_alloc.h
- vmaAllocateMemoryForBuffer() : vk_mem_alloc.h
- vmaAllocateMemoryForImage() : vk_mem_alloc.h @@ -145,7 +150,8 @@ $(function() {
- VmaAllocatorCreateFlags : vk_mem_alloc.h
- VmaAllocatorCreateInfo : vk_mem_alloc.h
- VmaAllocatorInfo : vk_mem_alloc.h -
- vmaBeginDefragmentationPass() : vk_mem_alloc.h +
- vmaBeginDefragmentation() : vk_mem_alloc.h +
- vmaBeginDefragmentationPass() : vk_mem_alloc.h
- vmaBindBufferMemory() : vk_mem_alloc.h
- vmaBindBufferMemory2() : vk_mem_alloc.h
- vmaBindImageMemory() : vk_mem_alloc.h @@ -165,14 +171,11 @@ $(function() {
- vmaCreateImage() : vk_mem_alloc.h
- vmaCreatePool() : vk_mem_alloc.h
- vmaCreateVirtualBlock() : vk_mem_alloc.h -
- vmaDefragment() : vk_mem_alloc.h -
- vmaDefragmentationBegin() : vk_mem_alloc.h -
- vmaDefragmentationEnd() : vk_mem_alloc.h
- VmaDefragmentationFlagBits : vk_mem_alloc.h
- VmaDefragmentationFlags : vk_mem_alloc.h
- VmaDefragmentationInfo : vk_mem_alloc.h -
- VmaDefragmentationInfo2 : vk_mem_alloc.h -
- VmaDefragmentationPassInfo : vk_mem_alloc.h +
- VmaDefragmentationMove : vk_mem_alloc.h +
- VmaDefragmentationMoveOperation : vk_mem_alloc.h
- VmaDefragmentationPassMoveInfo : vk_mem_alloc.h
- VmaDefragmentationStats : vk_mem_alloc.h
- vmaDestroyAllocator() : vk_mem_alloc.h @@ -182,7 +185,8 @@ $(function() {
- vmaDestroyVirtualBlock() : vk_mem_alloc.h
- VmaDetailedStatistics : vk_mem_alloc.h
- VmaDeviceMemoryCallbacks : vk_mem_alloc.h -
- vmaEndDefragmentationPass() : vk_mem_alloc.h +
- vmaEndDefragmentation() : vk_mem_alloc.h +
- vmaEndDefragmentationPass() : vk_mem_alloc.h
- vmaFindMemoryTypeIndex() : vk_mem_alloc.h
- vmaFindMemoryTypeIndexForBufferInfo() : vk_mem_alloc.h
- vmaFindMemoryTypeIndexForImageInfo() : vk_mem_alloc.h diff --git a/docs/html/globals_enum.html b/docs/html/globals_enum.html index 93fe59e..92d776a 100644 --- a/docs/html/globals_enum.html +++ b/docs/html/globals_enum.html @@ -66,6 +66,7 @@ $(function() {
- VmaAllocationCreateFlagBits : vk_mem_alloc.h
- VmaAllocatorCreateFlagBits : vk_mem_alloc.h
- VmaDefragmentationFlagBits : vk_mem_alloc.h +
- VmaDefragmentationMoveOperation : vk_mem_alloc.h
- VmaMemoryUsage : vk_mem_alloc.h
- VmaPoolCreateFlagBits : vk_mem_alloc.h
- VmaVirtualAllocationCreateFlagBits : vk_mem_alloc.h diff --git a/docs/html/globals_eval.html b/docs/html/globals_eval.html index b654215..10bf21c 100644 --- a/docs/html/globals_eval.html +++ b/docs/html/globals_eval.html @@ -80,6 +80,7 @@ $(function() {
- VMA_ALLOCATION_CREATE_STRATEGY_FIRST_FIT_BIT : vk_mem_alloc.h
- VMA_ALLOCATION_CREATE_STRATEGY_MASK : vk_mem_alloc.h
- VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT : vk_mem_alloc.h +
- VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT : vk_mem_alloc.h
- VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT : vk_mem_alloc.h
- VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT : vk_mem_alloc.h
- VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT : vk_mem_alloc.h @@ -92,8 +93,15 @@ $(function() {
- VMA_ALLOCATOR_CREATE_FLAG_BITS_MAX_ENUM : vk_mem_alloc.h
- VMA_ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT : vk_mem_alloc.h
- VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT : vk_mem_alloc.h +
- VMA_DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED_BIT : vk_mem_alloc.h +
- VMA_DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT : vk_mem_alloc.h +
- VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT : vk_mem_alloc.h +
- VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT : vk_mem_alloc.h +
- VMA_DEFRAGMENTATION_FLAG_ALGORITHM_MASK : vk_mem_alloc.h
- VMA_DEFRAGMENTATION_FLAG_BITS_MAX_ENUM : vk_mem_alloc.h -
- VMA_DEFRAGMENTATION_FLAG_INCREMENTAL : vk_mem_alloc.h +
- VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY : vk_mem_alloc.h +
- VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY : vk_mem_alloc.h +
- VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE : vk_mem_alloc.h
- VMA_MEMORY_USAGE_AUTO : vk_mem_alloc.h
- VMA_MEMORY_USAGE_AUTO_PREFER_DEVICE : vk_mem_alloc.h
- VMA_MEMORY_USAGE_AUTO_PREFER_HOST : vk_mem_alloc.h @@ -106,21 +114,18 @@ $(function() {
- VMA_MEMORY_USAGE_MAX_ENUM : vk_mem_alloc.h
- VMA_MEMORY_USAGE_UNKNOWN : vk_mem_alloc.h
- VMA_POOL_CREATE_ALGORITHM_MASK : vk_mem_alloc.h -
- VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT : vk_mem_alloc.h
- VMA_POOL_CREATE_FLAG_BITS_MAX_ENUM : vk_mem_alloc.h
- VMA_POOL_CREATE_IGNORE_BUFFER_IMAGE_GRANULARITY_BIT : vk_mem_alloc.h
- VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT : vk_mem_alloc.h -
- VMA_POOL_CREATE_TLSF_ALGORITHM_BIT : vk_mem_alloc.h
- VMA_VIRTUAL_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM : vk_mem_alloc.h
- VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MASK : vk_mem_alloc.h
- VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT : vk_mem_alloc.h
- VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT : vk_mem_alloc.h +
- VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_PACKED_BIT : vk_mem_alloc.h
- VMA_VIRTUAL_ALLOCATION_CREATE_UPPER_ADDRESS_BIT : vk_mem_alloc.h
- VMA_VIRTUAL_BLOCK_CREATE_ALGORITHM_MASK : vk_mem_alloc.h -
- VMA_VIRTUAL_BLOCK_CREATE_BUDDY_ALGORITHM_BIT : vk_mem_alloc.h
- VMA_VIRTUAL_BLOCK_CREATE_FLAG_BITS_MAX_ENUM : vk_mem_alloc.h
- VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT : vk_mem_alloc.h -
- VMA_VIRTUAL_BLOCK_CREATE_TLSF_ALGORITHM_BIT : vk_mem_alloc.h
- vmaAllocateMemoryForBuffer() : vk_mem_alloc.h
- vmaAllocateMemoryForImage() : vk_mem_alloc.h
- vmaAllocateMemoryPages() : vk_mem_alloc.h -
- vmaBeginDefragmentationPass() : vk_mem_alloc.h +
- vmaBeginDefragmentation() : vk_mem_alloc.h +
- vmaBeginDefragmentationPass() : vk_mem_alloc.h
- vmaBindBufferMemory() : vk_mem_alloc.h
- vmaBindBufferMemory2() : vk_mem_alloc.h
- vmaBindImageMemory() : vk_mem_alloc.h @@ -89,15 +90,13 @@ $(function() {
- vmaCreateImage() : vk_mem_alloc.h
- vmaCreatePool() : vk_mem_alloc.h
- vmaCreateVirtualBlock() : vk_mem_alloc.h -
- vmaDefragment() : vk_mem_alloc.h -
- vmaDefragmentationBegin() : vk_mem_alloc.h -
- vmaDefragmentationEnd() : vk_mem_alloc.h
- vmaDestroyAllocator() : vk_mem_alloc.h
- vmaDestroyBuffer() : vk_mem_alloc.h
- vmaDestroyImage() : vk_mem_alloc.h
- vmaDestroyPool() : vk_mem_alloc.h
- vmaDestroyVirtualBlock() : vk_mem_alloc.h -
- vmaEndDefragmentationPass() : vk_mem_alloc.h +
- vmaEndDefragmentation() : vk_mem_alloc.h +
- vmaEndDefragmentationPass() : vk_mem_alloc.h
- vmaFindMemoryTypeIndex() : vk_mem_alloc.h
- vmaFindMemoryTypeIndexForBufferInfo() : vk_mem_alloc.h
- vmaFindMemoryTypeIndexForImageInfo() : vk_mem_alloc.h diff --git a/docs/html/globals_type.html b/docs/html/globals_type.html index bc8da05..44f534a 100644 --- a/docs/html/globals_type.html +++ b/docs/html/globals_type.html @@ -83,8 +83,8 @@ $(function() {
- VmaDefragmentationFlagBits : vk_mem_alloc.h
- VmaDefragmentationFlags : vk_mem_alloc.h
- VmaDefragmentationInfo : vk_mem_alloc.h -
- VmaDefragmentationInfo2 : vk_mem_alloc.h -
- VmaDefragmentationPassInfo : vk_mem_alloc.h +
- VmaDefragmentationMove : vk_mem_alloc.h +
- VmaDefragmentationMoveOperation : vk_mem_alloc.h
- VmaDefragmentationPassMoveInfo : vk_mem_alloc.h
- VmaDefragmentationStats : vk_mem_alloc.h
- VmaDetailedStatistics : vk_mem_alloc.h diff --git a/docs/html/group__group__alloc.html b/docs/html/group__group__alloc.html index 95791d6..594d1b2 100644 --- a/docs/html/group__group__alloc.html +++ b/docs/html/group__group__alloc.html @@ -84,19 +84,17 @@ Classes
- Deprecated:
- This is a part of the old interface. It is recommended to use structure VmaDefragmentationInfo2 and function vmaDefragmentationBegin() instead.
- Deprecated:
- Removed. Do not use.
- Deprecated:
- Removed. Do not use.
- Deprecated:
- Removed. Do not use.
- Deprecated:
- Removed. Do not use.
- Deprecated:
- Obsolete, preserved for backward compatibility. Prefers
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT. - Deprecated:
- Obsolete, preserved for backward compatibility. Prefers
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT. - Deprecated:
- Obsolete, preserved for backward compatibility. Guarantees
VK_MEMORY_PROPERTY_HOST_VISIBLE_BITandVK_MEMORY_PROPERTY_HOST_COHERENT_BIT. - Deprecated:
- Obsolete, preserved for backward compatibility. Guarantees
VK_MEMORY_PROPERTY_HOST_VISIBLE_BITandVK_MEMORY_PROPERTY_HOST_COHERENT_BIT. - Deprecated:
- Obsolete, preserved for backward compatibility. Guarantees
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, prefersVK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT. - Deprecated:
- Obsolete, preserved for backward compatibility. Guarantees
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, prefersVK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT. - Deprecated:
- Obsolete, preserved for backward compatibility. Guarantees
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, prefersVK_MEMORY_PROPERTY_HOST_CACHED_BIT. - Deprecated:
- Obsolete, preserved for backward compatibility. Guarantees
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, prefersVK_MEMORY_PROPERTY_HOST_CACHED_BIT. - Deprecated:
- Obsolete, preserved for backward compatibility. Prefers not
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT. - Deprecated:
- Obsolete, preserved for backward compatibility. Prefers not
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT. - Parameters
-
+
+
+allocator Allocator object. pInfo Structure filled with parameters of defragmentation. [out] pContext Context object that must be passed to vmaEndDefragmentation() to finish defragmentation.
+ - Parameters
-
+
+
+allocator Allocator object. context Context object that has been created by vmaBeginDefragmentation(). [out] pPassInfo Computed informations for current pass.
+ - Returns
-
+
VK_SUCCESSif no more moves are possible. Then you can omit call to vmaEndDefragmentationPass() and simply end whole defragmentation.
+VK_INCOMPLETEif there are pending moves returned inpPassInfo. You need to perform them, call vmaEndDefragmentationPass(), and then preferably try another pass with vmaBeginDefragmentationPass().
+
- Parameters
-
-
-
-allocator pAllocations Array of allocations that can be moved during this compation. allocationCount Number of elements in pAllocations and pAllocationsChanged arrays. [out] pAllocationsChanged Array of boolean values that will indicate whether matching allocation in pAllocations array has been moved. This parameter is optional. Pass null if you don't need this information. pDefragmentationInfo Configuration parameters. Optional - pass null to use default values. [out] pDefragmentationStats Statistics returned by the function. Optional - pass null if you don't need this information.
- - Returns
VK_SUCCESSif completed, negative error code in case of error.- Deprecated:
- This is a part of the old interface. It is recommended to use structure VmaDefragmentationInfo2 and function vmaDefragmentationBegin() instead.
- Only allocations made in memory types that have
VK_MEMORY_PROPERTY_HOST_VISIBLE_BITandVK_MEMORY_PROPERTY_HOST_COHERENT_BITflags 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 or VMA_POOL_CREATE_BUDDY_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. -
- You must not pass same VmaAllocation object multiple times in
pAllocationsarray.
- - Parameters
-
-
-
-allocator Allocator object. pInfo Structure filled with parameters of defragmentation. [out] pStats Optional. Statistics of defragmentation. You can pass null if you are not interested in this information. [out] pContext Context object that must be passed to vmaDefragmentationEnd() to finish defragmentation.
- - Returns
VK_SUCCESSand*pContext == nullif defragmentation finished within this function call.VK_NOT_READYand*pContext != nullif defragmentation has been started and you need to call vmaDefragmentationEnd() to finish it. Negative value in case of error.- You should not use any of allocations passed as
pInfo->pAllocationsor any allocations that belong to pools passed aspInfo->pPools, including calling vmaGetAllocationInfo(), or access their data.
- - Some mutexes protecting internal data structures may be locked, so trying to make or free any allocations, bind buffers or images, map memory, or launch another simultaneous defragmentation in between may cause stall (when done on another thread) or deadlock (when done on the same thread), unless you are 100% sure that defragmented allocations are in different pools. -
- Information returned via
pStatsandpInfo->pAllocationsChangedare undefined. They become valid after call to vmaDefragmentationEnd().
- - If
pInfo->commandBufferis not null, you must submit that command buffer and make sure it finished execution before calling vmaDefragmentationEnd().
- - Parameters
-
+
+
+allocator Allocator object. context Context object that has been created by vmaBeginDefragmentation(). [out] pStats Optional stats for the defragmentation. Can be null.
+ - Parameters
-
+
+
+allocator Allocator object. context Context object that has been created by vmaBeginDefragmentation(). pPassInfo Computed informations for current pass filled by vmaBeginDefragmentationPass() and possibly modified by you.
+ - Allocations at
pPassInfo[i].srcAllocationthat hadpPassInfo[i].operation ==VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY (which is the default) will be pointing to the new destination place.
+ - Allocation at
pPassInfo[i].srcAllocationthat hadpPassInfo[i].operation ==VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY will be freed.
+ - Ring buffer -
- Buddy allocation algorithm - - -
- Defragmentation +
- Defragmentation
- Statistics
- Numeric statistics
- JSON dump diff --git a/docs/html/memory_mapping.html b/docs/html/memory_mapping.html index 81f445f..69b3ff0 100644 --- a/docs/html/memory_mapping.html +++ b/docs/html/memory_mapping.html @@ -116,15 +116,15 @@ Persistently mapped memory
- Note
- VMA_ALLOCATION_CREATE_MAPPED_BIT by itself doesn't guarantee that the allocation will end up in a mappable memory type. For this, you need to also specify VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT or VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT. VMA_ALLOCATION_CREATE_MAPPED_BIT only guarantees that if the memory is
HOST_VISIBLE, the allocation will be mapped on creation. For an example of how to make use of this fact, see section Advanced data uploading. - D:/PROJECTS/Vulkan Memory Allocator/REPO/include/vk_mem_alloc.h
- Deprecated:
- This is a part of the old interface. It is recommended to use structure VmaDefragmentationInfo2 and function vmaDefragmentationBegin() instead.
- D:/PROJECTS/Vulkan Memory Allocator/REPO/include/vk_mem_alloc.h +
- Create a new buffer/image in the place pointed by VmaDefragmentationMove::dstMemory + VmaDefragmentationMove::dstOffset. +
- Copy data from the VmaDefragmentationMove::srcAllocation e.g. using
vkCmdCopyBuffer,vkCmdCopyImage.
+ - Make sure these commands finished executing on the GPU. +
- Destroy the old buffer/image. +
- Destroy its buffer/image. +
- Set VmaDefragmentationMove::operation to VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY. +
- VmaVirtualBlockCreateInfo::size @@ -166,9 +166,9 @@ Statistics
// Buffer is already mapped. You can access its memory.memcpy(allocInfo.pMappedData, &constantBufferData, sizeof(constantBufferData));- -VkResult vmaCreateBuffer(VmaAllocator allocator, const VkBufferCreateInfo *pBufferCreateInfo, const VmaAllocationCreateInfo *pAllocationCreateInfo, VkBuffer *pBuffer, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)-@ VMA_ALLOCATION_CREATE_MAPPED_BITSet this flag to use a memory that will be persistently mapped and retrieve pointer to it.Definition: vk_mem_alloc.h:551-@ VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BITDefinition: vk_mem_alloc.h:598-Definition: vk_mem_alloc.h:1218-VmaMemoryUsage usageIntended usage of memory.Definition: vk_mem_alloc.h:1226+ +VmaAllocationCreateFlags flagsUse VmaAllocationCreateFlagBits enum.Definition: vk_mem_alloc.h:1220+@ VMA_ALLOCATION_CREATE_MAPPED_BITSet this flag to use a memory that will be persistently mapped and retrieve pointer to it.Definition: vk_mem_alloc.h:546+@ VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BITDefinition: vk_mem_alloc.h:593+Definition: vk_mem_alloc.h:1211+VmaMemoryUsage usageIntended usage of memory.Definition: vk_mem_alloc.h:1219VmaAllocationCreateFlags flagsUse VmaAllocationCreateFlagBits enum.Definition: vk_mem_alloc.h:1213-Represents single memory allocation.-Parameters of VmaAllocation objects, that can be retrieved using function vmaGetAllocationInfo().Definition: vk_mem_alloc.h:1333+void * pMappedDataPointer to the beginning of this allocation as mapped data.Definition: vk_mem_alloc.h:1375+Parameters of VmaAllocation objects, that can be retrieved using function vmaGetAllocationInfo().Definition: vk_mem_alloc.h:1326void * pMappedDataPointer to the beginning of this allocation as mapped data.Definition: vk_mem_alloc.h:1368Cache flush and invalidate
diff --git a/docs/html/menudata.js b/docs/html/menudata.js index 1005963..74a8ea2 100644 --- a/docs/html/menudata.js +++ b/docs/html/menudata.js @@ -33,7 +33,6 @@ var menudata={children:[ {text:"All",url:"functions.html",children:[ {text:"a",url:"functions.html#index_a"}, {text:"b",url:"functions.html#index_b"}, -{text:"c",url:"functions.html#index_c"}, {text:"d",url:"functions.html#index_d"}, {text:"f",url:"functions.html#index_f"}, {text:"i",url:"functions.html#index_i"}, @@ -48,7 +47,6 @@ var menudata={children:[ {text:"Variables",url:"functions_vars.html",children:[ {text:"a",url:"functions_vars.html#index_a"}, {text:"b",url:"functions_vars.html#index_b"}, -{text:"c",url:"functions_vars.html#index_c"}, {text:"d",url:"functions_vars.html#index_d"}, {text:"f",url:"functions_vars.html#index_f"}, {text:"i",url:"functions_vars.html#index_i"}, diff --git a/docs/html/quick_start.html b/docs/html/quick_start.html index 815399a..14bba29 100644 --- a/docs/html/quick_start.html +++ b/docs/html/quick_start.html @@ -124,16 +124,16 @@ InitializationVmaAllocator allocator;vmaCreateAllocator(&allocatorCreateInfo, &allocator);- -VkResult vmaCreateAllocator(const VmaAllocatorCreateInfo *pCreateInfo, VmaAllocator *pAllocator)Creates VmaAllocator object.-VkPhysicalDevice physicalDeviceVulkan physical device.Definition: vk_mem_alloc.h:1006-const VmaVulkanFunctions * pVulkanFunctionsPointers to Vulkan functions. Can be null.Definition: vk_mem_alloc.h:1049- -VkInstance instanceHandle to Vulkan instance object.Definition: vk_mem_alloc.h:1054+ +uint32_t vulkanApiVersionOptional. The highest version of Vulkan that the application is designed to use.Definition: vk_mem_alloc.h:1063+VkPhysicalDevice physicalDeviceVulkan physical device.Definition: vk_mem_alloc.h:999+const VmaVulkanFunctions * pVulkanFunctionsPointers to Vulkan functions. Can be null.Definition: vk_mem_alloc.h:1042+ +VkInstance instanceHandle to Vulkan instance object.Definition: vk_mem_alloc.h:1047uint32_t vulkanApiVersionOptional. The highest version of Vulkan that the application is designed to use.Definition: vk_mem_alloc.h:1056-Represents main object of this library initialized.-Pointers to some Vulkan functions - a subset used by the library.Definition: vk_mem_alloc.h:954-PFN_vkGetInstanceProcAddr vkGetInstanceProcAddrRequired when using VMA_DYNAMIC_VULKAN_FUNCTIONS.Definition: vk_mem_alloc.h:956+PFN_vkGetDeviceProcAddr vkGetDeviceProcAddrRequired when using VMA_DYNAMIC_VULKAN_FUNCTIONS.Definition: vk_mem_alloc.h:958+Pointers to some Vulkan functions - a subset used by the library.Definition: vk_mem_alloc.h:947+PFN_vkGetInstanceProcAddr vkGetInstanceProcAddrRequired when using VMA_DYNAMIC_VULKAN_FUNCTIONS.Definition: vk_mem_alloc.h:949PFN_vkGetDeviceProcAddr vkGetDeviceProcAddrRequired when using VMA_DYNAMIC_VULKAN_FUNCTIONS.Definition: vk_mem_alloc.h:951Resource allocation
When you want to create a buffer or image:
@@ -153,9 +153,9 @@ Resource allocationVmaAllocation allocation;vmaCreateBuffer(allocator, &bufferInfo, &allocInfo, &buffer, &allocation, nullptr);- -VkResult vmaCreateBuffer(VmaAllocator allocator, const VkBufferCreateInfo *pBufferCreateInfo, const VmaAllocationCreateInfo *pAllocationCreateInfo, VkBuffer *pBuffer, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)-Definition: vk_mem_alloc.h:1218+ +VmaMemoryUsage usageIntended usage of memory.Definition: vk_mem_alloc.h:1226+Definition: vk_mem_alloc.h:1211VmaMemoryUsage usageIntended usage of memory.Definition: vk_mem_alloc.h:1219Represents single memory allocation.Don't forget to destroy your objects when no longer needed:
vmaDestroyBuffer(allocator, buffer, allocation);diff --git a/docs/html/resource_aliasing.html b/docs/html/resource_aliasing.html index e4a4e5d..1a29aa3 100644 --- a/docs/html/resource_aliasing.html +++ b/docs/html/resource_aliasing.html @@ -140,8 +140,8 @@ $(function() {VkResult vmaBindImageMemory(VmaAllocator allocator, VmaAllocation allocation, VkImage image)Binds image to allocation.void vmaFreeMemory(VmaAllocator allocator, const VmaAllocation allocation)Frees memory previously allocated using vmaAllocateMemory(), vmaAllocateMemoryForBuffer(),...-VkResult vmaAllocateMemory(VmaAllocator allocator, const VkMemoryRequirements *pVkMemoryRequirements, const VmaAllocationCreateInfo *pCreateInfo, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)General purpose memory allocation.-Definition: vk_mem_alloc.h:1218+VkMemoryPropertyFlags preferredFlagsFlags that preferably should be set in a memory type chosen for an allocation.Definition: vk_mem_alloc.h:1236+Definition: vk_mem_alloc.h:1211VkMemoryPropertyFlags preferredFlagsFlags that preferably should be set in a memory type chosen for an allocation.Definition: vk_mem_alloc.h:1229Represents single memory allocation.Remember that using resources that alias in memory requires proper synchronization. You need to issue a memory barrier to make sure commands that use
img1andimg2don't overlap on GPU timeline. You also need to treat a resource after aliasing as uninitialized - containing garbage data. For example, if you useimg1and then want to useimg2, you need to issue an image memory barrier forimg2witholdLayout=VK_IMAGE_LAYOUT_UNDEFINED.Additional considerations:
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['usage_3',['usage',['../struct_vma_budget.html#a84dd1ecca8b0110259eb206dbadb11f6',1,'VmaBudget::usage()'],['../struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910',1,'VmaAllocationCreateInfo::usage()']]] ]; diff --git a/docs/html/search/variables_c.js b/docs/html/search/variables_c.js index c5f6f77..896216d 100644 --- a/docs/html/search/variables_c.js +++ b/docs/html/search/variables_c.js @@ -1,7 +1,30 @@ var searchData= [ - ['unusedrangecount_0',['unusedRangeCount',['../struct_vma_detailed_statistics.html#ab721bf04892e8b67802d4ddb7734638a',1,'VmaDetailedStatistics']]], - ['unusedrangesizemax_1',['unusedRangeSizeMax',['../struct_vma_detailed_statistics.html#af98943b5da98cf441ffa04b67914c78c',1,'VmaDetailedStatistics']]], - ['unusedrangesizemin_2',['unusedRangeSizeMin',['../struct_vma_detailed_statistics.html#a830eda847ed735d0e91da25cfcf797a4',1,'VmaDetailedStatistics']]], - 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['vkgetphysicaldeviceproperties_22',['vkGetPhysicalDeviceProperties',['../struct_vma_vulkan_functions.html#a77b7a74082823e865dd6546623468f96',1,'VmaVulkanFunctions']]], + ['vkinvalidatemappedmemoryranges_23',['vkInvalidateMappedMemoryRanges',['../struct_vma_vulkan_functions.html#a5c1093bc32386a8060c37c9f282078a1',1,'VmaVulkanFunctions']]], + ['vkmapmemory_24',['vkMapMemory',['../struct_vma_vulkan_functions.html#ab5c1f38dea3a2cf00dc9eb4f57218c49',1,'VmaVulkanFunctions']]], + ['vkunmapmemory_25',['vkUnmapMemory',['../struct_vma_vulkan_functions.html#acc798589736f0becb317fc2196c1d8b9',1,'VmaVulkanFunctions']]], + ['vulkanapiversion_26',['vulkanApiVersion',['../struct_vma_allocator_create_info.html#ae0ffc55139b54520a6bb704b29ffc285',1,'VmaAllocatorCreateInfo']]] ]; diff --git a/docs/html/struct_vma_allocation_info.html b/docs/html/struct_vma_allocation_info.html index 8b14bcb..bfcb98f 100644 --- a/docs/html/struct_vma_allocation_info.html +++ b/docs/html/struct_vma_allocation_info.html @@ -110,7 +110,7 @@ Public AttributesHandle to Vulkan memory object.
Same memory object can be shared by multiple allocations.
-It can change after call to vmaDefragment() if this allocation is passed to the function.
+It can change after call to vmaDefragment() if this allocation is passed to the function.
@@ -145,7 +145,7 @@ Public AttributesOffset in
VkDeviceMemoryobject to the beginning of this allocation, in bytes.(deviceMemory, offset)pair is unique to this allocation.You usually don't need to use this offset. If you create a buffer or an image together with the allocation using e.g. function vmaCreateBuffer(), vmaCreateImage(), functions that operate on these resources refer to the beginning of the buffer or image, not entire device memory block. Functions like vmaMapMemory(), vmaBindBufferMemory() also refer to the beginning of the allocation and apply this offset automatically.
-It can change after call to vmaDefragment() if this allocation is passed to the function.
+It can change after call to vmaDefragment() if this allocation is passed to the function.
@@ -163,7 +163,7 @@ Public AttributesPointer to the beginning of this allocation as mapped data.
If the allocation hasn't been mapped using vmaMapMemory() and hasn't been created with VMA_ALLOCATION_CREATE_MAPPED_BIT flag, this value is null.
-It can change after call to vmaMapMemory(), vmaUnmapMemory(). It can also change after call to vmaDefragment() if this allocation is passed to the function.
+It can change after call to vmaMapMemory(), vmaUnmapMemory(). It can also change after call to vmaDefragment() if this allocation is passed to the function.
diff --git a/docs/html/struct_vma_defragmentation_context.html b/docs/html/struct_vma_defragmentation_context.html index 171639d..fee98aa 100644 --- a/docs/html/struct_vma_defragmentation_context.html +++ b/docs/html/struct_vma_defragmentation_context.html @@ -66,11 +66,11 @@ $(function() {-Represents Opaque object that represents started defragmentation process. +
An opaque object that represents started defragmentation process. More...
Detailed Description
-Represents Opaque object that represents started defragmentation process.
-Fill structure VmaDefragmentationInfo2 and call function vmaDefragmentationBegin() to create it. Call function vmaDefragmentationEnd() to destroy it.
+An opaque object that represents started defragmentation process.
+Fill structure VmaDefragmentationInfo and call function vmaBeginDefragmentation() to create it. Call function vmaEndDefragmentation() to destroy it.
The documentation for this struct was generated from the following file:This is the complete list of members for VmaDefragmentationInfo, including all inherited members.
diff --git a/docs/html/struct_vma_defragmentation_info.html b/docs/html/struct_vma_defragmentation_info.html index bdbbf03..8093109 100644 --- a/docs/html/struct_vma_defragmentation_info.html +++ b/docs/html/struct_vma_defragmentation_info.html @@ -69,53 +69,92 @@ $(function() {-Deprecated. Optional configuration parameters to be passed to function vmaDefragment(). +
Parameters for defragmentation. More...
Public Attributes
VkDeviceSize maxBytesToMove Maximum total numbers of bytes that can be copied while moving allocations to different places. More... uint32_t maxAllocationsToMove Maximum number of allocations that can be moved to different place. More... VmaDefragmentationFlags flags Use combination of VmaDefragmentationFlagBits. More... VmaPool pool Custom pool to be defragmented. More... VkDeviceSize maxBytesPerPass Maximum numbers of bytes that can be copied during single pass, while moving allocations to different places. More... uint32_t maxAllocationsPerPass Maximum number of allocations that can be moved during single pass to a different place. More... Detailed Description
-Deprecated. Optional configuration parameters to be passed to function vmaDefragment().
-Parameters for defragmentation.
+To be used with function vmaBeginDefragmentation().
Member Data Documentation
- -◆ maxAllocationsToMove
+ +◆ flags
- -- uint32_t VmaDefragmentationInfo::maxAllocationsToMove +VmaDefragmentationFlags VmaDefragmentationInfo::flags -Maximum number of allocations that can be moved to different place.
-Default is
+UINT32_MAX, which means no limit.Use combination of VmaDefragmentationFlagBits.
◆ maxBytesToMove
+ +◆ maxAllocationsPerPass
+ +- VkDeviceSize VmaDefragmentationInfo::maxBytesToMove +uint32_t VmaDefragmentationInfo::maxAllocationsPerPass -+Maximum total numbers of bytes that can be copied while moving allocations to different places.
-Default is
+VK_WHOLE_SIZE, which means no limit.Maximum number of allocations that can be moved during single pass to a different place.
+
+ +0means no limit.◆ maxBytesPerPass
+ +++ +++
++ +VkDeviceSize VmaDefragmentationInfo::maxBytesPerPass ++ ++Maximum numbers of bytes that can be copied during single pass, while moving allocations to different places.
+
+ +0means no limit.◆ pool
+ ++diff --git a/docs/html/struct_vma_defragmentation_move-members.html b/docs/html/struct_vma_defragmentation_move-members.html new file mode 100644 index 0000000..056f74d --- /dev/null +++ b/docs/html/struct_vma_defragmentation_move-members.html @@ -0,0 +1,82 @@ + + + + + + + +++
++ +VmaPool VmaDefragmentationInfo::pool ++ +Custom pool to be defragmented.
+If null then default pools will undergo defragmentation process.
Vulkan Memory Allocator: Member List + + + + + + + + + +++++ + + + + + + + ++ +
++ + ++ +Vulkan Memory Allocator ++++ + ++ ++ ++++VmaDefragmentationMove Member List+ ++ +This is the complete list of members for VmaDefragmentationMove, including all inherited members.
++
dstMemory VmaDefragmentationMove dstOffset VmaDefragmentationMove internalData VmaDefragmentationMove operation VmaDefragmentationMove srcAllocation VmaDefragmentationMove
+Generated by
1.9.2
+
+
+
diff --git a/docs/html/struct_vma_defragmentation_move.html b/docs/html/struct_vma_defragmentation_move.html
new file mode 100644
index 0000000..f9a3f4c
--- /dev/null
+++ b/docs/html/struct_vma_defragmentation_move.html
@@ -0,0 +1,185 @@
+
+
+
+
+
+
+
+Vulkan Memory Allocator: VmaDefragmentationMove Struct Reference + + + + + + + + + +++++ + + + + + + + ++ +
++ + ++ +Vulkan Memory Allocator ++++ + ++ ++ ++ +++VmaDefragmentationMove Struct Reference+ ++ +Single move of an allocation to be done for defragmentation. + More...
++
++Public Attributes
VmaDefragmentationMoveOperation operation Operation to be performed on the allocation by vmaEndDefragmentationPass(). Default value is VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY. You can modify it. More... VmaAllocation srcAllocation Allocation that should be moved. More... VkDeviceMemory dstMemory Destination memory block where the allocation should be moved. More... VkDeviceSize dstOffset Destination offset where the allocation should be moved. More... void * internalData Internal data used by VMA. Do not use or modify! More... Detailed Description
+Single move of an allocation to be done for defragmentation.
+Member Data Documentation
+ +◆ dstMemory
+ +++ +++
++ +VkDeviceMemory VmaDefragmentationMove::dstMemory ++ ++Destination memory block where the allocation should be moved.
+ +◆ dstOffset
+ +++ +++
++ +VkDeviceSize VmaDefragmentationMove::dstOffset ++ ++Destination offset where the allocation should be moved.
+ +◆ internalData
+ +++ +++
++ +void* VmaDefragmentationMove::internalData ++ ++Internal data used by VMA. Do not use or modify!
+ +◆ operation
+ +++ +++
++ +VmaDefragmentationMoveOperation VmaDefragmentationMove::operation ++ ++Operation to be performed on the allocation by vmaEndDefragmentationPass(). Default value is VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY. You can modify it.
+ +◆ srcAllocation
+ +++++
++ +VmaAllocation VmaDefragmentationMove::srcAllocation ++ ++Allocation that should be moved.
+ +
The documentation for this struct was generated from the following file:-
+
+Generated by 1.9.2
+
+
+
diff --git a/docs/html/struct_vma_defragmentation_pass_move_info-members.html b/docs/html/struct_vma_defragmentation_pass_move_info-members.html
index 96425a6..9df2594 100644
--- a/docs/html/struct_vma_defragmentation_pass_move_info-members.html
+++ b/docs/html/struct_vma_defragmentation_pass_move_info-members.html
@@ -68,9 +68,8 @@ $(function() {
This is the complete list of members for VmaDefragmentationPassMoveInfo, including all inherited members.
diff --git a/docs/html/struct_vma_defragmentation_pass_move_info.html b/docs/html/struct_vma_defragmentation_pass_move_info.html index ffeb39c..ea8a5a6 100644 --- a/docs/html/struct_vma_defragmentation_pass_move_info.html +++ b/docs/html/struct_vma_defragmentation_pass_move_info.html @@ -68,56 +68,68 @@ $(function() {VmaDefragmentationPassMoveInfo Struct Reference+ +Parameters for incremental defragmentation steps. + More...
-Public Attributes
VmaAllocation allocation VkDeviceMemory memory VkDeviceSize offset uint32_t moveCount Number of elements in the pMovesarray. More...VmaDefragmentationMove * pMoves Array of moves to be performed by the user in the current defragmentation pass. More... Member Data Documentation
- -◆ allocation
+Detailed Description
+Parameters for incremental defragmentation steps.
+To be used with function vmaBeginDefragmentationPass().
+Member Data Documentation
+ +◆ moveCount
- -- VmaAllocation VmaDefragmentationPassMoveInfo::allocation +uint32_t VmaDefragmentationPassMoveInfo::moveCount +Number of elements in the
+pMovesarray.◆ memory
+ +◆ pMoves
- -- VkDeviceMemory VmaDefragmentationPassMoveInfo::memory +VmaDefragmentationMove* VmaDefragmentationPassMoveInfo::pMoves --◆ offset
- --diff --git a/docs/html/struct_vma_defragmentation_stats.html b/docs/html/struct_vma_defragmentation_stats.html index afc49d1..86d9c11 100644 --- a/docs/html/struct_vma_defragmentation_stats.html +++ b/docs/html/struct_vma_defragmentation_stats.html @@ -69,7 +69,7 @@ $(function() {--
-- -VkDeviceSize VmaDefragmentationPassMoveInfo::offset -+Array of moves to be performed by the user in the current defragmentation pass.
+Pointer to an array of
+moveCountelements, owned by VMA, created in vmaBeginDefragmentationPass(), destroyed in vmaEndDefragmentationPass().For each element, you should:
+-
+
Only then you can finish defragmentation pass by calling vmaEndDefragmentationPass(). After this call, the allocation will point to the new place in memory.
+Alternatively, if you cannot move specific allocation, you can set VmaDefragmentationMove::operation to VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE.
+Alternatively, if you decide you want to completely remove the allocation:
+-
+
Then, after vmaEndDefragmentationPass() the allocation will be freed.
-Statistics returned by function vmaDefragment(). +
Statistics returned for defragmentation process in function vmaEndDefragmentation(). More...
@@ -88,7 +88,7 @@ Public Attributes
Detailed Description
-Statistics returned by function vmaDefragment().
+Statistics returned for defragmentation process in function vmaEndDefragmentation().
Member Data Documentation
◆ allocationsMoved
diff --git a/docs/html/usage_patterns.html b/docs/html/usage_patterns.html index cb572f0..8cf973f 100644 --- a/docs/html/usage_patterns.html +++ b/docs/html/usage_patterns.html @@ -96,11 +96,11 @@ GPU-only resourceVmaAllocation alloc;vmaCreateImage(allocator, &imgCreateInfo, &allocCreateInfo, &img, &alloc, nullptr);- -VkResult vmaCreateImage(VmaAllocator allocator, const VkImageCreateInfo *pImageCreateInfo, const VmaAllocationCreateInfo *pAllocationCreateInfo, VkImage *pImage, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)Function similar to vmaCreateBuffer().-@ VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BITSet this flag if the allocation should have its own memory block.Definition: vk_mem_alloc.h:529-Definition: vk_mem_alloc.h:1218-VmaMemoryUsage usageIntended usage of memory.Definition: vk_mem_alloc.h:1226+ +VmaAllocationCreateFlags flagsUse VmaAllocationCreateFlagBits enum.Definition: vk_mem_alloc.h:1220+@ VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BITSet this flag if the allocation should have its own memory block.Definition: vk_mem_alloc.h:524+Definition: vk_mem_alloc.h:1211+VmaMemoryUsage usageIntended usage of memory.Definition: vk_mem_alloc.h:1219VmaAllocationCreateFlags flagsUse VmaAllocationCreateFlagBits enum.Definition: vk_mem_alloc.h:1213Represents single memory allocation.Also consider: Consider creating them as dedicated allocations using VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT, especially if they are large or if you plan to destroy and recreate them with different sizes e.g. when display resolution changes. Prefer to create such resources first and all other GPU resources (like textures and vertex buffers) later.
@@ -125,10 +125,10 @@ Staging copy for upload
memcpy(allocInfo.pMappedData, myData, myDataSize);-VkResult vmaCreateBuffer(VmaAllocator allocator, const VkBufferCreateInfo *pBufferCreateInfo, const VmaAllocationCreateInfo *pAllocationCreateInfo, VkBuffer *pBuffer, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)-@ VMA_ALLOCATION_CREATE_MAPPED_BITSet this flag to use a memory that will be persistently mapped and retrieve pointer to it.Definition: vk_mem_alloc.h:551-@ VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BITDefinition: vk_mem_alloc.h:598-Parameters of VmaAllocation objects, that can be retrieved using function vmaGetAllocationInfo().Definition: vk_mem_alloc.h:1333+void * pMappedDataPointer to the beginning of this allocation as mapped data.Definition: vk_mem_alloc.h:1375+@ VMA_ALLOCATION_CREATE_MAPPED_BITSet this flag to use a memory that will be persistently mapped and retrieve pointer to it.Definition: vk_mem_alloc.h:546+@ VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BITDefinition: vk_mem_alloc.h:593+Parameters of VmaAllocation objects, that can be retrieved using function vmaGetAllocationInfo().Definition: vk_mem_alloc.h:1326void * pMappedDataPointer to the beginning of this allocation as mapped data.Definition: vk_mem_alloc.h:1368Also consider: You can map the allocation using vmaMapMemory() or you can create it as persistenly mapped using VMA_ALLOCATION_CREATE_MAPPED_BIT, as in the example above.
Readback
@@ -151,7 +151,7 @@ Readback...-+@ VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BITDefinition: vk_mem_alloc.h:610@ VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BITDefinition: vk_mem_alloc.h:605Advanced data uploading
For resources that you frequently write on CPU via mapped pointer and freqnently read on GPU e.g. as a uniform buffer (also called "dynamic"), multiple options are possible:
@@ -220,7 +220,7 @@ Advanced data uploadingvkCmdCopyBuffer(cmdBuf, stagingBuf, buf, 1, &bufCopy);}-void vmaGetAllocationMemoryProperties(VmaAllocator allocator, VmaAllocation allocation, VkMemoryPropertyFlags *pFlags)Given an allocation, returns Property Flags of its memory type.+@ VMA_ALLOCATION_CREATE_HOST_ACCESS_ALLOW_TRANSFER_INSTEAD_BITDefinition: vk_mem_alloc.h:622@ VMA_ALLOCATION_CREATE_HOST_ACCESS_ALLOW_TRANSFER_INSTEAD_BITDefinition: vk_mem_alloc.h:617Other use cases
Here are some other, less obvious use cases and their recommended settings:
diff --git a/docs/html/virtual_allocator.html b/docs/html/virtual_allocator.html index d38b9c2..d29811c 100644 --- a/docs/html/virtual_allocator.html +++ b/docs/html/virtual_allocator.html @@ -84,8 +84,8 @@ Creating virtual blockVmaVirtualBlock block;VkResult res = vmaCreateVirtualBlock(&blockCreateInfo, &block);-VkResult vmaCreateVirtualBlock(const VmaVirtualBlockCreateInfo *pCreateInfo, VmaVirtualBlock *pVirtualBlock)Creates new VmaVirtualBlock object.-Parameters of created VmaVirtualBlock object to be passed to vmaCreateVirtualBlock().Definition: vk_mem_alloc.h:1516+VkDeviceSize sizeTotal size of the virtual block.Definition: vk_mem_alloc.h:1522+Parameters of created VmaVirtualBlock object to be passed to vmaCreateVirtualBlock().Definition: vk_mem_alloc.h:1472VkDeviceSize sizeTotal size of the virtual block.Definition: vk_mem_alloc.h:1478Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...Making virtual allocations
@@ -111,8 +111,8 @@ Making virtual allocations// Allocation failed - no space for it could be found. Handle this error!}-VkResult vmaVirtualAllocate(VmaVirtualBlock virtualBlock, const VmaVirtualAllocationCreateInfo *pCreateInfo, VmaVirtualAllocation *pAllocation, VkDeviceSize *pOffset)Allocates new virtual allocation inside given VmaVirtualBlock.-Parameters of created virtual allocation to be passed to vmaVirtualAllocate().Definition: vk_mem_alloc.h:1537+VkDeviceSize sizeSize of the allocation.Definition: vk_mem_alloc.h:1542+Parameters of created virtual allocation to be passed to vmaVirtualAllocate().Definition: vk_mem_alloc.h:1493VkDeviceSize sizeSize of the allocation.Definition: vk_mem_alloc.h:1498Represents single memory allocation done inside VmaVirtualBlock.Deallocation
@@ -140,8 +140,8 @@ Allocation parametersvmaVirtualFree(block, alloc);-void vmaGetVirtualAllocationInfo(VmaVirtualBlock virtualBlock, VmaVirtualAllocation allocation, VmaVirtualAllocationInfo *pVirtualAllocInfo)Returns information about a specific virtual allocation within a virtual block, like its size and pUs...-Parameters of an existing virtual allocation, returned by vmaGetVirtualAllocationInfo().Definition: vk_mem_alloc.h:1560+void * pUserDataCustom pointer associated with the allocation.Definition: vk_mem_alloc.h:1575+Parameters of an existing virtual allocation, returned by vmaGetVirtualAllocationInfo().Definition: vk_mem_alloc.h:1516void * pUserDataCustom pointer associated with the allocation.Definition: vk_mem_alloc.h:1531Alignment and units
It feels natural to express sizes and offsets in bytes. If an offset of an allocation needs to be aligned to a multiply of some number (e.g. 4 bytes), you can fill optional member VmaVirtualAllocationCreateInfo::alignment to request it. Example:
@@ -151,7 +151,7 @@ Alignment and unitsVmaVirtualAllocation alloc;res = vmaVirtualAllocate(block, &allocCreateInfo, &alloc, nullptr);-+VkDeviceSize alignmentRequired alignment of the allocation. Optional.Definition: vk_mem_alloc.h:1547VkDeviceSize alignmentRequired alignment of the allocation. Optional.Definition: vk_mem_alloc.h:1503Alignments of different allocations made from one block may vary. However, if all alignments and sizes are always multiply of some size e.g. 4 B or
sizeof(MyDataStruct), you can express all sizes, alignments, and offsets in multiples of that size instead of individual bytes. It might be more convenient, but you need to make sure to use this new unit consistently in all the places:printf("My virtual block has %llu bytes used by %u virtual allocations\n",stats.allocationBytes, stats.allocationCount);-void vmaGetVirtualBlockStatistics(VmaVirtualBlock virtualBlock, VmaStatistics *pStats)Calculates and returns statistics about virtual allocations and memory usage in given VmaVirtualBlock...-Calculated statistics of memory usage e.g. in a specific memory type, heap, custom pool,...Definition: vk_mem_alloc.h:1111-VkDeviceSize allocationBytesTotal number of bytes occupied by all VmaAllocation objects.Definition: vk_mem_alloc.h:1133+uint32_t allocationCountNumber of VmaAllocation objects allocated.Definition: vk_mem_alloc.h:1119+Calculated statistics of memory usage e.g. in a specific memory type, heap, custom pool,...Definition: vk_mem_alloc.h:1104+VkDeviceSize allocationBytesTotal number of bytes occupied by all VmaAllocation objects.Definition: vk_mem_alloc.h:1126uint32_t allocationCountNumber of VmaAllocation objects allocated.Definition: vk_mem_alloc.h:1112You can also request a full list of allocations and free regions as a string in JSON format by calling vmaBuildVirtualBlockStatsString(). Returned string must be later freed using vmaFreeVirtualBlockStatsString(). The format of this string differs from the one returned by the main Vulkan allocator, but it is similar.
Additional considerations
diff --git a/docs/html/vk__mem__alloc_8h.html b/docs/html/vk__mem__alloc_8h.html index bf4b323..d5fa800 100644 --- a/docs/html/vk__mem__alloc_8h.html +++ b/docs/html/vk__mem__alloc_8h.html @@ -111,19 +111,17 @@ Classesstruct VmaAllocationInfo Parameters of VmaAllocation objects, that can be retrieved using function vmaGetAllocationInfo(). More... struct VmaDefragmentationInfo2 Parameters for defragmentation. More... struct VmaDefragmentationInfo Parameters for defragmentation. More... struct VmaDefragmentationMove Single move of an allocation to be done for defragmentation. More... struct VmaDefragmentationPassMoveInfo struct VmaDefragmentationPassInfo Parameters for incremental defragmentation steps. More... struct VmaDefragmentationInfo Deprecated. Optional configuration parameters to be passed to function vmaDefragment(). More... Parameters for incremental defragmentation steps. More... struct VmaDefragmentationStats Statistics returned by function vmaDefragment(). More... Statistics returned for defragmentation process in function vmaEndDefragmentation(). More... struct VmaVirtualBlockCreateInfo Parameters of created VmaVirtualBlock object to be passed to vmaCreateVirtualBlock(). More... Flags to be passed as VmaPoolCreateInfo::flags. See VmaPoolCreateFlagBits. More... typedef enum VmaDefragmentationFlagBits VmaDefragmentationFlagBits Flags to be used in vmaDefragmentationBegin(). None at the moment. Reserved for future use. More... Flags to be passed as VmaDefragmentationInfo::flags. More... typedef VkFlags VmaDefragmentationFlags typedef enum VmaDefragmentationMoveOperation VmaDefragmentationMoveOperation Operation performed on single defragmentation move. More... typedef enum VmaVirtualBlockCreateFlagBits VmaVirtualBlockCreateFlagBits Flags to be passed as VmaVirtualBlockCreateInfo::flags. More... typedef struct VmaAllocationInfo VmaAllocationInfo Parameters of VmaAllocation objects, that can be retrieved using function vmaGetAllocationInfo(). More... typedef struct VmaDefragmentationInfo2 VmaDefragmentationInfo2 Parameters for defragmentation. More... typedef struct VmaDefragmentationPassMoveInfo VmaDefragmentationPassMoveInfo typedef struct VmaDefragmentationPassInfo VmaDefragmentationPassInfo Parameters for incremental defragmentation steps. More... typedef struct VmaDefragmentationInfo VmaDefragmentationInfo Deprecated. Optional configuration parameters to be passed to function vmaDefragment(). More... Parameters for defragmentation. More... typedef struct VmaDefragmentationMove VmaDefragmentationMove Single move of an allocation to be done for defragmentation. More... typedef struct VmaDefragmentationPassMoveInfo VmaDefragmentationPassMoveInfo Parameters for incremental defragmentation steps. More... typedef struct VmaDefragmentationStats VmaDefragmentationStats Statistics returned by function vmaDefragment(). More... Statistics returned for defragmentation process in function vmaEndDefragmentation(). More... typedef struct VmaVirtualBlockCreateInfo VmaVirtualBlockCreateInfo Parameters of created VmaVirtualBlock object to be passed to vmaCreateVirtualBlock(). More...
- VMA_ALLOCATION_CREATE_STRATEGY_FIRST_FIT_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT + VMA_ALLOCATION_CREATE_STRATEGY_BEST_FIT_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT +, VMA_ALLOCATION_CREATE_STRATEGY_FIRST_FIT_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT , VMA_ALLOCATION_CREATE_STRATEGY_MASK , VMA_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
}Flags to be passed as VmaAllocationCreateInfo::flags. More... enum VmaPoolCreateFlagBits {
- VMA_POOL_CREATE_IGNORE_BUFFER_IMAGE_GRANULARITY_BIT = 0x00000002 +enum VmaPoolCreateFlagBits { VMA_POOL_CREATE_IGNORE_BUFFER_IMAGE_GRANULARITY_BIT = 0x00000002 , VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT = 0x00000004 -, VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT = 0x00000008 -, VMA_POOL_CREATE_TLSF_ALGORITHM_BIT = 0x00000010 -,
- VMA_POOL_CREATE_ALGORITHM_MASK +, VMA_POOL_CREATE_ALGORITHM_MASK , VMA_POOL_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF -
}Flags to be passed as VmaPoolCreateInfo::flags. More... enum VmaDefragmentationFlagBits { VMA_DEFRAGMENTATION_FLAG_INCREMENTAL = 0x1 -, VMA_DEFRAGMENTATION_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF - } Flags to be used in vmaDefragmentationBegin(). None at the moment. Reserved for future use. More... enum VmaVirtualBlockCreateFlagBits {
- VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT = 0x00000001 -, VMA_VIRTUAL_BLOCK_CREATE_BUDDY_ALGORITHM_BIT = 0x00000002 -, VMA_VIRTUAL_BLOCK_CREATE_TLSF_ALGORITHM_BIT = 0x00000004 -, VMA_VIRTUAL_BLOCK_CREATE_ALGORITHM_MASK +enum VmaDefragmentationFlagBits {
+ VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT = 0x1 +, VMA_DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED_BIT = 0x2 +, VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT = 0x4 +, VMA_DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT = 0x8 ,
- VMA_VIRTUAL_BLOCK_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF + VMA_DEFRAGMENTATION_FLAG_ALGORITHM_MASK +, VMA_DEFRAGMENTATION_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
}Flags to be passed as VmaDefragmentationInfo::flags. More... enum VmaDefragmentationMoveOperation { VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY = 0 +, VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE = 1 +, VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY = 2 + } Operation performed on single defragmentation move. More... enum VmaVirtualBlockCreateFlagBits { VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT = 0x00000001 +, VMA_VIRTUAL_BLOCK_CREATE_ALGORITHM_MASK +, VMA_VIRTUAL_BLOCK_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF + } Flags to be passed as VmaVirtualBlockCreateInfo::flags. More... enum VmaVirtualAllocationCreateFlagBits {
VMA_VIRTUAL_ALLOCATION_CREATE_UPPER_ADDRESS_BIT = VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT , VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT , VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT -, VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MASK = VMA_ALLOCATION_CREATE_STRATEGY_MASK +, VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_PACKED_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT ,
- VMA_VIRTUAL_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF + VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MASK = VMA_ALLOCATION_CREATE_STRATEGY_MASK +, VMA_VIRTUAL_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
}Flags to be passed as VmaVirtualAllocationCreateInfo::flags. More... VkResult vmaCheckCorruption (VmaAllocator allocator, uint32_t memoryTypeBits) Checks magic number in margins around all allocations in given memory types (in both default and custom pools) in search for corruptions. More... VkResult vmaDefragmentationBegin (VmaAllocator allocator, const VmaDefragmentationInfo2 *pInfo, VmaDefragmentationStats *pStats, VmaDefragmentationContext *pContext) Begins defragmentation process. More... VkResult vmaDefragmentationEnd (VmaAllocator allocator, VmaDefragmentationContext context) Ends defragmentation process. More... VkResult vmaBeginDefragmentationPass (VmaAllocator allocator, VmaDefragmentationContext context, VmaDefragmentationPassInfo *pInfo) VkResult vmaEndDefragmentationPass (VmaAllocator allocator, VmaDefragmentationContext context) VkResult vmaDefragment (VmaAllocator allocator, const VmaAllocation *pAllocations, size_t allocationCount, VkBool32 *pAllocationsChanged, const VmaDefragmentationInfo *pDefragmentationInfo, VmaDefragmentationStats *pDefragmentationStats) Deprecated. Compacts memory by moving allocations. More... VkResult vmaBeginDefragmentation (VmaAllocator allocator, const VmaDefragmentationInfo *pInfo, VmaDefragmentationContext *pContext) Begins defragmentation process. More... VkResult vmaEndDefragmentation (VmaAllocator allocator, VmaDefragmentationContext context, VmaDefragmentationStats *pStats) Ends defragmentation process. More... VkResult vmaBeginDefragmentationPass (VmaAllocator allocator, VmaDefragmentationContext context, VmaDefragmentationPassMoveInfo *pPassInfo) Starts single defragmentation pass. More... VkResult vmaEndDefragmentationPass (VmaAllocator allocator, VmaDefragmentationContext context, VmaDefragmentationPassMoveInfo *pPassInfo) Ends single defragmentation pass. More... VkResult vmaBindBufferMemory (VmaAllocator allocator, VmaAllocation allocation, VkBuffer buffer) Binds buffer to allocation. More... That is all. The extension will be automatically used whenever you create a buffer using vmaCreateBuffer() or image using vmaCreateImage().
When using the extension together with Vulkan Validation Layer, you will receive warnings like this:
vkBindBufferMemory(): Binding memory to buffer 0x33 but vkGetBufferMemoryRequirements() has not been called on that buffer.
diff --git a/include/vk_mem_alloc.h b/include/vk_mem_alloc.h index c3daf3c..05415cc 100644 --- a/include/vk_mem_alloc.h +++ b/include/vk_mem_alloc.h @@ -60,12 +60,7 @@ License: MIT - [Stack](@ref linear_algorithm_stack) - [Double stack](@ref linear_algorithm_double_stack) - [Ring buffer](@ref linear_algorithm_ring_buffer) - - [Buddy allocation algorithm](@ref buddy_algorithm) - \subpage defragmentation - - [Defragmenting CPU memory](@ref defragmentation_cpu) - - [Defragmenting GPU memory](@ref defragmentation_gpu) - - [Additional notes](@ref defragmentation_additional_notes) - - [Writing custom allocation algorithm](@ref defragmentation_custom_algorithm) - \subpage statistics - [Numeric statistics](@ref statistics_numeric_statistics) - [JSON dump](@ref statistics_json_dump) @@ -629,6 +624,11 @@ typedef enum VmaAllocationCreateFlagBits to minimize allocation time, possibly at the expense of allocation quality. */ VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT = 0x00020000, + /** Allocation strategy that chooses always the lowest offset in available space. + This is not the most efficient strategy but achieves highly packed data. + Used internally by defragmentation, not recomended in typical usage. + */ + VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT = 0x00040000, /** Alias to #VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT. */ VMA_ALLOCATION_CREATE_STRATEGY_BEST_FIT_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT, @@ -639,7 +639,8 @@ typedef enum VmaAllocationCreateFlagBits */ VMA_ALLOCATION_CREATE_STRATEGY_MASK = VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT | - VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT, + VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT | + VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT, VMA_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF } VmaAllocationCreateFlagBits; @@ -680,48 +681,60 @@ typedef enum VmaPoolCreateFlagBits */ VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT = 0x00000004, - /** \brief Enables alternative, buddy allocation algorithm in this pool. - - It operates on a tree of blocks, each having size that is a power of two and - a half of its parent's size. Comparing to default algorithm, this one provides - faster allocation and deallocation and decreased external fragmentation, - at the expense of more memory wasted (internal fragmentation). - For details, see documentation chapter \ref buddy_algorithm. - */ - VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT = 0x00000008, - - /** \brief Enables alternative, Two-Level Segregated Fit (TLSF) allocation algorithm in this pool. - - This algorithm is based on 2-level lists dividing address space into smaller - chunks. The first level is aligned to power of two which serves as buckets for requested - memory to fall into, and the second level is lineary subdivided into lists of free memory. - This algorithm aims to achieve bounded response time even in the worst case scenario. - Allocation time can be sometimes slightly longer than compared to other algorithms - but in return the application can avoid stalls in case of fragmentation, giving - predictable results, suitable for real-time use cases. - */ - VMA_POOL_CREATE_TLSF_ALGORITHM_BIT = 0x00000010, - /** Bit mask to extract only `ALGORITHM` bits from entire set of flags. */ VMA_POOL_CREATE_ALGORITHM_MASK = - VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT | - VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT | - VMA_POOL_CREATE_TLSF_ALGORITHM_BIT, + VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT, VMA_POOL_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF } VmaPoolCreateFlagBits; /// Flags to be passed as VmaPoolCreateInfo::flags. See #VmaPoolCreateFlagBits. typedef VkFlags VmaPoolCreateFlags; -/// Flags to be used in vmaDefragmentationBegin(). None at the moment. Reserved for future use. +/// Flags to be passed as VmaDefragmentationInfo::flags. typedef enum VmaDefragmentationFlagBits { - VMA_DEFRAGMENTATION_FLAG_INCREMENTAL = 0x1, + /* \brief Use simple but fast algorithm for defragmentation. + May not achieve best results but will require least time to compute and least allocations to copy. + */ + VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT = 0x1, + /* \brief Default defragmentation algorithm, applied also when no `ALGORITHM` flag is specified. + Offers a balance between defragmentation quality and the amount of allocations and bytes that need to be moved. + */ + VMA_DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED_BIT = 0x2, + /* \brief Perform full defragmentation of memory. + Can result in notably more time to compute and allocations to copy, but will achieve best memory packing. + */ + VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT = 0x4, + /** \brief Use the most roboust algorithm at the cost of time to compute and number of copies to make. + Only available when bufferImageGranularity is greater than 1, since it aims to reduce + alignment issues between different types of resources. + Otherwise falls back to same behavior as #VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT. + */ + VMA_DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT = 0x8, + + /// A bit mask to extract only `ALGORITHM` bits from entire set of flags. + VMA_DEFRAGMENTATION_FLAG_ALGORITHM_MASK = + VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT | + VMA_DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED_BIT | + VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT | + VMA_DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT, + VMA_DEFRAGMENTATION_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF } VmaDefragmentationFlagBits; typedef VkFlags VmaDefragmentationFlags; +/// Operation performed on single defragmentation move. +typedef enum VmaDefragmentationMoveOperation +{ + /// Buffer/image has been recreated at `dstMemory` + `dstOffset`, data has been copied, old buffer/image has been destroyed. `srcAllocation` should be changed to point to the new place. This is the default value set by vmaBeginDefragmentationPass(). + VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY = 0, + /// Set this value if you cannot move the allocation. New place reserved `dstMemory` + `dstOffset` will be freed. `srcAllocation` will remain unchanged. + VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE = 1, + /// Set this value if you decide to abandon the allocation and you destroyed the buffer/image. New place reserved `dstMemory` + `dstOffset` will be freed, along with `srcAllocation`. + VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY = 2, +} VmaDefragmentationMoveOperation; + /** @} */ /** @@ -745,34 +758,10 @@ typedef enum VmaVirtualBlockCreateFlagBits */ VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT = 0x00000001, - /** \brief Enables alternative, buddy allocation algorithm in this virtual block. - - It operates on a tree of blocks, each having size that is a power of two and - a half of its parent's size. Comparing to default algorithm, this one provides - faster allocation and deallocation and decreased external fragmentation, - at the expense of more memory wasted (internal fragmentation). - For details, see documentation chapter \ref buddy_algorithm. - */ - VMA_VIRTUAL_BLOCK_CREATE_BUDDY_ALGORITHM_BIT = 0x00000002, - - /** \brief Enables alternative, TLSF allocation algorithm in virtual block. - - This algorithm is based on 2-level lists dividing address space into smaller - chunks. The first level is aligned to power of two which serves as buckets for requested - memory to fall into, and the second level is lineary subdivided into lists of free memory. - This algorithm aims to achieve bounded response time even in the worst case scenario. - Allocation time can be sometimes slightly longer than compared to other algorithms - but in return the application can avoid stalls in case of fragmentation, giving - predictable results, suitable for real-time use cases. - */ - VMA_VIRTUAL_BLOCK_CREATE_TLSF_ALGORITHM_BIT = 0x00000004, - /** \brief Bit mask to extract only `ALGORITHM` bits from entire set of flags. */ VMA_VIRTUAL_BLOCK_CREATE_ALGORITHM_MASK = - VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT | - VMA_VIRTUAL_BLOCK_CREATE_BUDDY_ALGORITHM_BIT | - VMA_VIRTUAL_BLOCK_CREATE_TLSF_ALGORITHM_BIT, + VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT, VMA_VIRTUAL_BLOCK_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF } VmaVirtualBlockCreateFlagBits; @@ -793,6 +782,10 @@ typedef enum VmaVirtualAllocationCreateFlagBits /** \brief Allocation strategy that tries to minimize allocation time. */ VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT, + /** Allocation strategy that chooses always the lowest offset in available space. + This is not the most efficient strategy but achieves highly packed data. + */ + VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_PACKED_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT , /** \brief A bit mask to extract only `STRATEGY` bits from entire set of flags. These strategy flags are binary compatible with equivalent flags in #VmaAllocationCreateFlagBits. @@ -866,10 +859,10 @@ returned structure VmaAllocationInfo. VK_DEFINE_HANDLE(VmaAllocation) /** \struct VmaDefragmentationContext -\brief Represents Opaque object that represents started defragmentation process. +\brief An opaque object that represents started defragmentation process. -Fill structure #VmaDefragmentationInfo2 and call function vmaDefragmentationBegin() to create it. -Call function vmaDefragmentationEnd() to destroy it. +Fill structure #VmaDefragmentationInfo and call function vmaBeginDefragmentation() to create it. +Call function vmaEndDefragmentation() to destroy it. */ VK_DEFINE_HANDLE(VmaDefragmentationContext) @@ -1382,116 +1375,79 @@ typedef struct VmaAllocationInfo /** \brief Parameters for defragmentation. -To be used with function vmaDefragmentationBegin(). +To be used with function vmaBeginDefragmentation(). */ -typedef struct VmaDefragmentationInfo2 +typedef struct VmaDefragmentationInfo { - /** \brief Reserved for future use. Should be 0. - */ + /// \brief Use combination of #VmaDefragmentationFlagBits. VmaDefragmentationFlags flags; - /** \brief Number of allocations in `pAllocations` array. + /** \brief Custom pool to be defragmented. + + If null then default pools will undergo defragmentation process. */ - uint32_t allocationCount; - /** \brief Pointer to array of allocations that can be defragmented. + VmaPool VMA_NULLABLE pool; + /** \brief Maximum numbers of bytes that can be copied during single pass, while moving allocations to different places. - The array should have `allocationCount` elements. - The array should not contain nulls. - Elements in the array should be unique - same allocation cannot occur twice. - All allocations not present in this array are considered non-moveable during this defragmentation. + `0` means no limit. */ - const VmaAllocation VMA_NOT_NULL* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) pAllocations; - /** \brief Optional, output. Pointer to array that will be filled with information whether the allocation at certain index has been changed during defragmentation. + VkDeviceSize maxBytesPerPass; + /** \brief Maximum number of allocations that can be moved during single pass to a different place. - The array should have `allocationCount` elements. - You can pass null if you are not interested in this information. + `0` means no limit. */ - VkBool32* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) pAllocationsChanged; - /** \brief Numer of pools in `pPools` array. - */ - uint32_t poolCount; - /** \brief Either null or pointer to array of pools to be defragmented. + uint32_t maxAllocationsPerPass; +} VmaDefragmentationInfo; - All the allocations in the specified pools can be moved during defragmentation - and there is no way to check if they were really moved as in `pAllocationsChanged`, - so you must query all the allocations in all these pools for new `VkDeviceMemory` - and offset using vmaGetAllocationInfo() if you might need to recreate buffers - and images bound to them. - - The array should have `poolCount` elements. - The array should not contain nulls. - Elements in the array should be unique - same pool cannot occur twice. - - Using this array is equivalent to specifying all allocations from the pools in `pAllocations`. - It might be more efficient. - */ - const VmaPool VMA_NOT_NULL* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(poolCount) pPools; - /** \brief Maximum total numbers of bytes that can be copied while moving allocations to different places using transfers on CPU side, like `memcpy()`, `memmove()`. - - `VK_WHOLE_SIZE` means no limit. - */ - VkDeviceSize maxCpuBytesToMove; - /** \brief Maximum number of allocations that can be moved to a different place using transfers on CPU side, like `memcpy()`, `memmove()`. - - `UINT32_MAX` means no limit. - */ - uint32_t maxCpuAllocationsToMove; - /** \brief Maximum total numbers of bytes that can be copied while moving allocations to different places using transfers on GPU side, posted to `commandBuffer`. - - `VK_WHOLE_SIZE` means no limit. - */ - VkDeviceSize maxGpuBytesToMove; - /** \brief Maximum number of allocations that can be moved to a different place using transfers on GPU side, posted to `commandBuffer`. - - `UINT32_MAX` means no limit. - */ - uint32_t maxGpuAllocationsToMove; - /** \brief Optional. Command buffer where GPU copy commands will be posted. - - If not null, it must be a valid command buffer handle that supports Transfer queue type. - It must be in the recording state and outside of a render pass instance. - You need to submit it and make sure it finished execution before calling vmaDefragmentationEnd(). - - Passing null means that only CPU defragmentation will be performed. - */ - VkCommandBuffer VMA_NULLABLE commandBuffer; -} VmaDefragmentationInfo2; - -typedef struct VmaDefragmentationPassMoveInfo +/// Single move of an allocation to be done for defragmentation. +typedef struct VmaDefragmentationMove { - VmaAllocation VMA_NOT_NULL allocation; - VkDeviceMemory VMA_NOT_NULL_NON_DISPATCHABLE memory; - VkDeviceSize offset; -} VmaDefragmentationPassMoveInfo; + /// Operation to be performed on the allocation by vmaEndDefragmentationPass(). Default value is #VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY. You can modify it. + VmaDefragmentationMoveOperation operation; + /// Allocation that should be moved. + VmaAllocation VMA_NOT_NULL srcAllocation; + /// Destination memory block where the allocation should be moved. + VkDeviceMemory dstMemory; + /// Destination offset where the allocation should be moved. + VkDeviceSize dstOffset; + /// Internal data used by VMA. Do not use or modify! + void* VMA_NOT_NULL internalData; +} VmaDefragmentationMove; /** \brief Parameters for incremental defragmentation steps. To be used with function vmaBeginDefragmentationPass(). */ -typedef struct VmaDefragmentationPassInfo +typedef struct VmaDefragmentationPassMoveInfo { + /// Number of elements in the `pMoves` array. uint32_t moveCount; - VmaDefragmentationPassMoveInfo* VMA_NOT_NULL VMA_LEN_IF_NOT_NULL(moveCount) pMoves; -} VmaDefragmentationPassInfo; + /** \brief Array of moves to be performed by the user in the current defragmentation pass. + + Pointer to an array of `moveCount` elements, owned by VMA, created in vmaBeginDefragmentationPass(), destroyed in vmaEndDefragmentationPass(). -/** \brief Deprecated. Optional configuration parameters to be passed to function vmaDefragment(). + For each element, you should: + + 1. Create a new buffer/image in the place pointed by VmaDefragmentationMove::dstMemory + VmaDefragmentationMove::dstOffset. + 2. Copy data from the VmaDefragmentationMove::srcAllocation e.g. using `vkCmdCopyBuffer`, `vkCmdCopyImage`. + 3. Make sure these commands finished executing on the GPU. + 4. Destroy the old buffer/image. + + Only then you can finish defragmentation pass by calling vmaEndDefragmentationPass(). + After this call, the allocation will point to the new place in memory. -\deprecated This is a part of the old interface. It is recommended to use structure #VmaDefragmentationInfo2 and function vmaDefragmentationBegin() instead. -*/ -typedef struct VmaDefragmentationInfo -{ - /** \brief Maximum total numbers of bytes that can be copied while moving allocations to different places. + Alternatively, if you cannot move specific allocation, you can set VmaDefragmentationMove::operation to #VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE. - Default is `VK_WHOLE_SIZE`, which means no limit. + Alternatively, if you decide you want to completely remove the allocation: + + 1. Destroy its buffer/image. + 2. Set VmaDefragmentationMove::operation to #VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY. + + Then, after vmaEndDefragmentationPass() the allocation will be freed. */ - VkDeviceSize maxBytesToMove; - /** \brief Maximum number of allocations that can be moved to different place. + VmaDefragmentationMove* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(moveCount) pMoves; +} VmaDefragmentationPassMoveInfo; - Default is `UINT32_MAX`, which means no limit. - */ - uint32_t maxAllocationsToMove; -} VmaDefragmentationInfo; - -/// Statistics returned by function vmaDefragment(). +/// Statistics returned for defragmentation process in function vmaEndDefragmentation(). typedef struct VmaDefragmentationStats { /// Total number of bytes that have been copied while moving allocations to different places. @@ -2131,103 +2087,66 @@ VMA_CALL_PRE VkResult VMA_CALL_POST vmaCheckCorruption( \param allocator Allocator object. \param pInfo Structure filled with parameters of defragmentation. -\param[out] pStats Optional. Statistics of defragmentation. You can pass null if you are not interested in this information. -\param[out] pContext Context object that must be passed to vmaDefragmentationEnd() to finish defragmentation. -\return `VK_SUCCESS` and `*pContext == null` if defragmentation finished within this function call. `VK_NOT_READY` and `*pContext != null` if defragmentation has been started and you need to call vmaDefragmentationEnd() to finish it. Negative value in case of error. +\param[out] pContext Context object that must be passed to vmaEndDefragmentation() to finish defragmentation. -Use this function instead of old, deprecated vmaDefragment(). - -Warning! Between the call to vmaDefragmentationBegin() and vmaDefragmentationEnd(): - -- You should not use any of allocations passed as `pInfo->pAllocations` or - any allocations that belong to pools passed as `pInfo->pPools`, - including calling vmaGetAllocationInfo(), or access - their data. -- Some mutexes protecting internal data structures may be locked, so trying to - make or free any allocations, bind buffers or images, map memory, or launch - another simultaneous defragmentation in between may cause stall (when done on - another thread) or deadlock (when done on the same thread), unless you are - 100% sure that defragmented allocations are in different pools. -- Information returned via `pStats` and `pInfo->pAllocationsChanged` are undefined. - They become valid after call to vmaDefragmentationEnd(). -- If `pInfo->commandBuffer` is not null, you must submit that command buffer - and make sure it finished execution before calling vmaDefragmentationEnd(). - -For more information and important limitations regarding defragmentation, see documentation chapter: +For more information about defragmentation, see documentation chapter: [Defragmentation](@ref defragmentation). */ -VMA_CALL_PRE VkResult VMA_CALL_POST vmaDefragmentationBegin( +VMA_CALL_PRE VkResult VMA_CALL_POST vmaBeginDefragmentation( VmaAllocator VMA_NOT_NULL allocator, - const VmaDefragmentationInfo2* VMA_NOT_NULL pInfo, - VmaDefragmentationStats* VMA_NULLABLE pStats, + const VmaDefragmentationInfo* VMA_NOT_NULL pInfo, VmaDefragmentationContext VMA_NULLABLE* VMA_NOT_NULL pContext); /** \brief Ends defragmentation process. -Use this function to finish defragmentation started by vmaDefragmentationBegin(). -It is safe to pass `context == null`. The function then does nothing. -*/ -VMA_CALL_PRE VkResult VMA_CALL_POST vmaDefragmentationEnd( - VmaAllocator VMA_NOT_NULL allocator, - VmaDefragmentationContext VMA_NULLABLE context); +\param allocator Allocator object. +\param context Context object that has been created by vmaBeginDefragmentation(). +\param[out] pStats Optional stats for the defragmentation. Can be null. +Use this function to finish defragmentation started by vmaBeginDefragmentation(). +*/ +VMA_CALL_PRE VkResult VMA_CALL_POST vmaEndDefragmentation( + VmaAllocator VMA_NOT_NULL allocator, + VmaDefragmentationContext VMA_NOT_NULL context, + VmaDefragmentationStats* VMA_NULLABLE pStats); + +/** \brief Starts single defragmentation pass. + +\param allocator Allocator object. +\param context Context object that has been created by vmaBeginDefragmentation(). +\param[out] pPassInfo Computed informations for current pass. +\returns +- `VK_SUCCESS` if no more moves are possible. Then you can omit call to vmaEndDefragmentationPass() and simply end whole defragmentation. +- `VK_INCOMPLETE` if there are pending moves returned in `pPassInfo`. You need to perform them, call vmaEndDefragmentationPass(), + and then preferably try another pass with vmaBeginDefragmentationPass(). +*/ VMA_CALL_PRE VkResult VMA_CALL_POST vmaBeginDefragmentationPass( VmaAllocator VMA_NOT_NULL allocator, - VmaDefragmentationContext VMA_NULLABLE context, - VmaDefragmentationPassInfo* VMA_NOT_NULL pInfo); + VmaDefragmentationContext VMA_NOT_NULL context, + VmaDefragmentationPassMoveInfo* VMA_NOT_NULL pPassInfo); +/** \brief Ends single defragmentation pass. + +\param allocator Allocator object. +\param context Context object that has been created by vmaBeginDefragmentation(). +\param pPassInfo Computed informations for current pass filled by vmaBeginDefragmentationPass() and possibly modified by you. + +Returns `VK_SUCCESS` if no more moves are possible or `VK_INCOMPLETE` if more defragmentations are possible. + +Ends incremental defragmentation pass and commits all defragmentation moves from `pPassInfo`. +After this call: + +- Allocations at `pPassInfo[i].srcAllocation` that had `pPassInfo[i].operation ==` #VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY + (which is the default) will be pointing to the new destination place. +- Allocation at `pPassInfo[i].srcAllocation` that had `pPassInfo[i].operation ==` #VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY + will be freed. + +If no more moves are possible you can end whole defragmentation. +*/ VMA_CALL_PRE VkResult VMA_CALL_POST vmaEndDefragmentationPass( VmaAllocator VMA_NOT_NULL allocator, - VmaDefragmentationContext VMA_NULLABLE context); - -/** \brief Deprecated. Compacts memory by moving allocations. - -\param allocator -\param pAllocations Array of allocations that can be moved during this compation. -\param allocationCount Number of elements in pAllocations and pAllocationsChanged arrays. -\param[out] pAllocationsChanged Array of boolean values that will indicate whether matching allocation in pAllocations array has been moved. This parameter is optional. Pass null if you don't need this information. -\param pDefragmentationInfo Configuration parameters. Optional - pass null to use default values. -\param[out] pDefragmentationStats Statistics returned by the function. Optional - pass null if you don't need this information. -\return `VK_SUCCESS` if completed, negative error code in case of error. - -\deprecated This is a part of the old interface. It is recommended to use structure #VmaDefragmentationInfo2 and function vmaDefragmentationBegin() instead. - -This function works by moving allocations to different places (different -`VkDeviceMemory` objects and/or different offsets) in order to optimize memory -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` 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 or - #VMA_POOL_CREATE_BUDDY_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. -- You must not pass same #VmaAllocation object multiple times in `pAllocations` array. - -The function also frees empty `VkDeviceMemory` blocks. - -Warning: This function may be time-consuming, so you shouldn't call it too often -(like after every resource creation/destruction). -You can call it on special occasions (like when reloading a game level or -when you just destroyed a lot of objects). Calling it every frame may be OK, but -you should measure that on your platform. - -For more information, see [Defragmentation](@ref defragmentation) chapter. -*/ -VMA_CALL_PRE VkResult VMA_CALL_POST vmaDefragment( - VmaAllocator VMA_NOT_NULL allocator, - const VmaAllocation VMA_NOT_NULL* VMA_NOT_NULL VMA_LEN_IF_NOT_NULL(allocationCount) pAllocations, - size_t allocationCount, - VkBool32* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) pAllocationsChanged, - const VmaDefragmentationInfo* VMA_NULLABLE pDefragmentationInfo, - VmaDefragmentationStats* VMA_NULLABLE pDefragmentationStats); + VmaDefragmentationContext VMA_NOT_NULL context, + VmaDefragmentationPassMoveInfo* VMA_NOT_NULL pPassInfo); /** \brief Binds buffer to allocation. @@ -3140,23 +3059,13 @@ typedef VmaList> m_Vector; + VmaVector< PairType, VmaStlAllocator > m_Vector; }; #ifndef _VMA_MAP_FUNCTIONS @@ -6030,8 +5942,7 @@ public: bool IsMappingAllowed() const { return (m_Flags & FLAG_MAPPING_ALLOWED) != 0; } void SetUserData(VmaAllocator hAllocator, void* pUserData); - void ChangeBlockAllocation(VmaAllocator hAllocator, VmaDeviceMemoryBlock* block, VmaAllocHandle allocHandle); - void ChangeAllocHandle(VmaAllocHandle newAllocHandle); + void SwapBlockAllocation(VmaAllocation allocation); VmaAllocHandle GetAllocHandle() const; VkDeviceSize GetOffset() const; VmaPool GetParentPool() const; @@ -6329,6 +6240,10 @@ public: virtual bool IsEmpty() const = 0; virtual void GetAllocationInfo(VmaAllocHandle allocHandle, VmaVirtualAllocationInfo& outInfo) = 0; virtual VkDeviceSize GetAllocationOffset(VmaAllocHandle allocHandle) const = 0; + virtual void* GetAllocationUserData(VmaAllocHandle allocHandle) const = 0; + + virtual VmaAllocHandle GetAllocationListBegin() const = 0; + virtual VmaAllocHandle GetNextAllocation(VmaAllocHandle prevAlloc) const = 0; // Shouldn't modify blockCount. virtual void AddDetailedStatistics(VmaDetailedStatistics& inoutStats) const = 0; @@ -6772,6 +6687,7 @@ void VmaBlockBufferImageGranularity::AllocPage(RegionInfo& page, uint8_t allocTy #endif // _VMA_BLOCK_BUFFER_IMAGE_GRANULARITY_FUNCTIONS #endif // _VMA_BLOCK_BUFFER_IMAGE_GRANULARITY +#if 0 #ifndef _VMA_BLOCK_METADATA_GENERIC class VmaBlockMetadata_Generic : public VmaBlockMetadata { @@ -6815,15 +6731,13 @@ public: void* userData) override; void GetAllocationInfo(VmaAllocHandle allocHandle, VmaVirtualAllocationInfo& outInfo) override; + void* GetAllocationUserData(VmaAllocHandle allocHandle) const override; + VmaAllocHandle GetAllocationListBegin() const override; + VmaAllocHandle GetNextAllocation(VmaAllocHandle prevAlloc) const override; void Clear() override; void SetAllocationUserData(VmaAllocHandle allocHandle, void* userData) override; void DebugLogAllAllocations() const override; - // For defragmentation - bool IsBufferImageGranularityConflictPossible( - VkDeviceSize bufferImageGranularity, - VmaSuballocationType& inOutPrevSuballocType) const; - private: uint32_t m_FreeCount; VkDeviceSize m_SumFreeSize; @@ -6833,7 +6747,7 @@ private: VkDeviceSize AlignAllocationSize(VkDeviceSize size) const { return IsVirtual() ? size : VmaAlignUp(size, (VkDeviceSize)16); } - VmaSuballocationList::iterator FindAtOffset(VkDeviceSize offset); + VmaSuballocationList::iterator FindAtOffset(VkDeviceSize offset) const; bool ValidateFreeSuballocationList() const; // Checks if requested suballocation with given parameters can be placed in given pFreeSuballocItem. @@ -7091,7 +7005,7 @@ bool VmaBlockMetadata_Generic::CreateAllocationRequest( } else { - VMA_ASSERT(strategy == VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT); + VMA_ASSERT(strategy & (VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT | VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT )); // Search staring from biggest suballocations. for (size_t index = freeSuballocCount; index--; ) { @@ -7202,6 +7116,37 @@ void VmaBlockMetadata_Generic::GetAllocationInfo(VmaAllocHandle allocHandle, Vma outInfo.pUserData = suballoc.userData; } +void* VmaBlockMetadata_Generic::GetAllocationUserData(VmaAllocHandle allocHandle) const +{ + return FindAtOffset((VkDeviceSize)allocHandle - 1)->userData; +} + +VmaAllocHandle VmaBlockMetadata_Generic::GetAllocationListBegin() const +{ + if (IsEmpty()) + return VK_NULL_HANDLE; + + for (const auto& suballoc : m_Suballocations) + { + if (suballoc.type != VMA_SUBALLOCATION_TYPE_FREE) + return (VmaAllocHandle)(suballoc.offset + 1); + } + VMA_ASSERT(false && "Should contain at least 1 allocation!"); + return VK_NULL_HANDLE; +} + +VmaAllocHandle VmaBlockMetadata_Generic::GetNextAllocation(VmaAllocHandle prevAlloc) const +{ + VmaSuballocationList::const_iterator prev = FindAtOffset((VkDeviceSize)prevAlloc - 1); + + for (VmaSuballocationList::const_iterator it = ++prev; it != m_Suballocations.end(); ++it) + { + if (it->type != VMA_SUBALLOCATION_TYPE_FREE) + return (VmaAllocHandle)(it->offset + 1); + } + return VK_NULL_HANDLE; +} + void VmaBlockMetadata_Generic::Clear() { const VkDeviceSize size = GetSize(); @@ -7236,15 +7181,15 @@ void VmaBlockMetadata_Generic::DebugLogAllAllocations() const } } -VmaSuballocationList::iterator VmaBlockMetadata_Generic::FindAtOffset(VkDeviceSize offset) +VmaSuballocationList::iterator VmaBlockMetadata_Generic::FindAtOffset(VkDeviceSize offset) const { VMA_HEAVY_ASSERT(!m_Suballocations.empty()); const VkDeviceSize last = m_Suballocations.rbegin()->offset; if (last == offset) - return m_Suballocations.rbegin(); + return m_Suballocations.rbegin().drop_const(); const VkDeviceSize first = m_Suballocations.begin()->offset; if (first == offset) - return m_Suballocations.begin(); + return m_Suballocations.begin().drop_const(); const size_t suballocCount = m_Suballocations.size(); const VkDeviceSize step = (last - first + m_Suballocations.begin()->size) / suballocCount; @@ -7254,12 +7199,11 @@ VmaSuballocationList::iterator VmaBlockMetadata_Generic::FindAtOffset(VkDeviceSi suballocItem != end; ++suballocItem) { - VmaSuballocation& suballoc = *suballocItem; - if (suballoc.offset == offset) - return suballocItem; + if (suballocItem->offset == offset) + return suballocItem.drop_const(); } VMA_ASSERT(false && "Not found!"); - return m_Suballocations.end(); + return m_Suballocations.end().drop_const(); }; // If requested offset is closer to the end of range, search from the end if (offset - first > suballocCount * step / 2) @@ -7503,37 +7447,9 @@ void VmaBlockMetadata_Generic::UnregisterFreeSuballocation(VmaSuballocationList: //VMA_HEAVY_ASSERT(ValidateFreeSuballocationList()); } - -bool VmaBlockMetadata_Generic::IsBufferImageGranularityConflictPossible( - VkDeviceSize bufferImageGranularity, - VmaSuballocationType& inOutPrevSuballocType) const -{ - if (bufferImageGranularity == 1 || IsEmpty() || IsVirtual()) - { - return false; - } - - VkDeviceSize minAlignment = VK_WHOLE_SIZE; - bool typeConflictFound = false; - for (const auto& suballoc : m_Suballocations) - { - const VmaSuballocationType suballocType = suballoc.type; - if (suballocType != VMA_SUBALLOCATION_TYPE_FREE) - { - VmaAllocation const alloc = (VmaAllocation)suballoc.userData; - minAlignment = VMA_MIN(minAlignment, alloc->GetAlignment()); - if (VmaIsBufferImageGranularityConflict(inOutPrevSuballocType, suballocType)) - { - typeConflictFound = true; - } - inOutPrevSuballocType = suballocType; - } - } - - return typeConflictFound || minAlignment >= bufferImageGranularity; -} #endif // _VMA_BLOCK_METADATA_GENERIC_FUNCTIONS #endif // _VMA_BLOCK_METADATA_GENERIC +#endif // #if 0 #ifndef _VMA_BLOCK_METADATA_LINEAR /* @@ -7654,6 +7570,9 @@ public: void Free(VmaAllocHandle allocHandle) override; void GetAllocationInfo(VmaAllocHandle allocHandle, VmaVirtualAllocationInfo& outInfo) override; + void* GetAllocationUserData(VmaAllocHandle allocHandle) const override; + VmaAllocHandle GetAllocationListBegin() const override; + VmaAllocHandle GetNextAllocation(VmaAllocHandle prevAlloc) const override; void Clear() override; void SetAllocationUserData(VmaAllocHandle allocHandle, void* userData) override; void DebugLogAllAllocations() const override; @@ -7700,7 +7619,7 @@ private: const SuballocationVectorType& AccessSuballocations1st() const { return m_1stVectorIndex ? m_Suballocations1 : m_Suballocations0; } const SuballocationVectorType& AccessSuballocations2nd() const { return m_1stVectorIndex ? m_Suballocations0 : m_Suballocations1; } - VmaSuballocation& FindSuballocation(VkDeviceSize offset); + VmaSuballocation& FindSuballocation(VkDeviceSize offset) const; bool ShouldCompact1st() const; void CleanupAfterFree(); @@ -8744,6 +8663,25 @@ void VmaBlockMetadata_Linear::GetAllocationInfo(VmaAllocHandle allocHandle, VmaV outInfo.pUserData = suballoc.userData; } +void* VmaBlockMetadata_Linear::GetAllocationUserData(VmaAllocHandle allocHandle) const +{ + return FindSuballocation((VkDeviceSize)allocHandle - 1).userData; +} + +VmaAllocHandle VmaBlockMetadata_Linear::GetAllocationListBegin() const +{ + // Function only used for defragmentation, which is disabled for this algorithm + VMA_ASSERT(0); + return VK_NULL_HANDLE; +} + +VmaAllocHandle VmaBlockMetadata_Linear::GetNextAllocation(VmaAllocHandle prevAlloc) const +{ + // Function only used for defragmentation, which is disabled for this algorithm + VMA_ASSERT(0); + return VK_NULL_HANDLE; +} + void VmaBlockMetadata_Linear::Clear() { m_SumFreeSize = GetSize(); @@ -8775,10 +8713,10 @@ void VmaBlockMetadata_Linear::DebugLogAllAllocations() const DebugLogAllocation(it->offset, it->size, it->userData); } -VmaSuballocation& VmaBlockMetadata_Linear::FindSuballocation(VkDeviceSize offset) +VmaSuballocation& VmaBlockMetadata_Linear::FindSuballocation(VkDeviceSize offset) const { - SuballocationVectorType& suballocations1st = AccessSuballocations1st(); - SuballocationVectorType& suballocations2nd = AccessSuballocations2nd(); + const SuballocationVectorType& suballocations1st = AccessSuballocations1st(); + const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd(); VmaSuballocation refSuballoc; refSuballoc.offset = offset; @@ -8786,31 +8724,31 @@ VmaSuballocation& VmaBlockMetadata_Linear::FindSuballocation(VkDeviceSize offset // Item from the 1st vector. { - const SuballocationVectorType::iterator it = VmaBinaryFindSorted( + SuballocationVectorType::const_iterator it = VmaBinaryFindSorted( suballocations1st.begin() + m_1stNullItemsBeginCount, suballocations1st.end(), refSuballoc, VmaSuballocationOffsetLess()); if (it != suballocations1st.end()) { - return *it; + return const_cast >& moves, - VkDeviceSize maxBytesToMove, - uint32_t maxAllocationsToMove, - VmaDefragmentationFlags flags); - -private: - struct BlockInfo - { - size_t origBlockIndex; - }; - class FreeSpaceDatabase - { - public: - FreeSpaceDatabase(); - - void Register(size_t blockInfoIndex, VkDeviceSize offset, VkDeviceSize size); - bool Fetch(VkDeviceSize alignment, VkDeviceSize size, - size_t& outBlockInfoIndex, VkDeviceSize& outDstOffset); - - private: - static const size_t MAX_COUNT = 4; - - struct FreeSpace - { - size_t blockInfoIndex; // SIZE_MAX means this structure is invalid. - VkDeviceSize offset; - VkDeviceSize size; - } m_FreeSpaces[MAX_COUNT]; - }; - - const bool m_OverlappingMoveSupported; - - uint32_t m_AllocationCount; - bool m_AllAllocations; - VkDeviceSize m_BytesMoved; - uint32_t m_AllocationsMoved; - - VmaVector m_MoveAllocator; + VmaVector > - blockInfo(blockCount, BlockInfo(), VmaStlAllocator (m_hAllocator->GetAllocationCallbacks())); - memset(blockInfo.data(), 0, blockCount * sizeof(BlockInfo)); - - // Go over all moves. Mark blocks that are used with BLOCK_FLAG_USED. - const size_t moveCount = moves.size(); - for (size_t moveIndex = 0; moveIndex < moveCount; ++moveIndex) - { - const VmaDefragmentationMove& move = moves[moveIndex]; - blockInfo[move.srcBlockIndex].flags |= BLOCK_FLAG_USED; - blockInfo[move.dstBlockIndex].flags |= BLOCK_FLAG_USED; - } - - VMA_ASSERT(pDefragCtx->res == VK_SUCCESS); - - // Go over all blocks. Get mapped pointer or map if necessary. - for (size_t blockIndex = 0; pDefragCtx->res == VK_SUCCESS && blockIndex < blockCount; ++blockIndex) - { - BlockInfo& currBlockInfo = blockInfo[blockIndex]; - VmaDeviceMemoryBlock* pBlock = m_Blocks[blockIndex]; - if ((currBlockInfo.flags & BLOCK_FLAG_USED) != 0) - { - currBlockInfo.pMappedData = pBlock->GetMappedData(); - // It is not originally mapped - map it. - if (currBlockInfo.pMappedData == VMA_NULL) - { - pDefragCtx->res = pBlock->Map(m_hAllocator, 1, &currBlockInfo.pMappedData); - if (pDefragCtx->res == VK_SUCCESS) - { - currBlockInfo.flags |= BLOCK_FLAG_MAPPED_FOR_DEFRAGMENTATION; - } - } - } - } - - // Go over all moves. Do actual data transfer. - if (pDefragCtx->res == VK_SUCCESS) - { - const VkDeviceSize nonCoherentAtomSize = m_hAllocator->m_PhysicalDeviceProperties.limits.nonCoherentAtomSize; - VkMappedMemoryRange memRange = { VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE }; - - for (size_t moveIndex = 0; moveIndex < moveCount; ++moveIndex) - { - const VmaDefragmentationMove& move = moves[moveIndex]; - - const BlockInfo& srcBlockInfo = blockInfo[move.srcBlockIndex]; - const BlockInfo& dstBlockInfo = blockInfo[move.dstBlockIndex]; - - VMA_ASSERT(srcBlockInfo.pMappedData && dstBlockInfo.pMappedData); - - // Invalidate source. - if (isNonCoherent) - { - VmaDeviceMemoryBlock* const pSrcBlock = m_Blocks[move.srcBlockIndex]; - memRange.memory = pSrcBlock->GetDeviceMemory(); - memRange.offset = VmaAlignDown(move.srcOffset, nonCoherentAtomSize); - memRange.size = VMA_MIN( - VmaAlignUp(move.size + (move.srcOffset - memRange.offset), nonCoherentAtomSize), - pSrcBlock->m_pMetadata->GetSize() - memRange.offset); - (*m_hAllocator->GetVulkanFunctions().vkInvalidateMappedMemoryRanges)(m_hAllocator->m_hDevice, 1, &memRange); - } - - // THE PLACE WHERE ACTUAL DATA COPY HAPPENS. - memmove( - reinterpret_cast (move.size)); - - if (IsCorruptionDetectionEnabled()) - { - VmaWriteMagicValue(dstBlockInfo.pMappedData, move.dstOffset + move.size); - } - - // Flush destination. - if (isNonCoherent) - { - VmaDeviceMemoryBlock* const pDstBlock = m_Blocks[move.dstBlockIndex]; - memRange.memory = pDstBlock->GetDeviceMemory(); - memRange.offset = VmaAlignDown(move.dstOffset, nonCoherentAtomSize); - memRange.size = VMA_MIN( - VmaAlignUp(move.size + (move.dstOffset - memRange.offset), nonCoherentAtomSize), - pDstBlock->m_pMetadata->GetSize() - memRange.offset); - (*m_hAllocator->GetVulkanFunctions().vkFlushMappedMemoryRanges)(m_hAllocator->m_hDevice, 1, &memRange); - } - } - } - - // Go over all blocks in reverse order. Unmap those that were mapped just for defragmentation. - // Regardless of pCtx->res == VK_SUCCESS. - for (size_t blockIndex = blockCount; blockIndex--; ) - { - const BlockInfo& currBlockInfo = blockInfo[blockIndex]; - if ((currBlockInfo.flags & BLOCK_FLAG_MAPPED_FOR_DEFRAGMENTATION) != 0) - { - VmaDeviceMemoryBlock* pBlock = m_Blocks[blockIndex]; - pBlock->Unmap(m_hAllocator, 1); - } - } -} - -void VmaBlockVector::ApplyDefragmentationMovesGpu( - VmaBlockVectorDefragmentationContext* pDefragCtx, - VmaVector >& moves, - VkDeviceSize maxBytesToMove, - uint32_t maxAllocationsToMove, - bool freeOldAllocations) -{ - if (m_Blocks.empty()) - { - return VK_SUCCESS; - } - - // This is a choice based on research. - // Option 1: - uint32_t strategy = VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT; - // Option 2: - //uint32_t strategy = VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT; - - size_t srcBlockMinIndex = 0; - // When FAST_ALGORITHM, move allocations from only last out of blocks that contain non-movable allocations. - /* - if(m_AlgorithmFlags & VMA_DEFRAGMENTATION_FAST_ALGORITHM_BIT) - { - const size_t blocksWithNonMovableCount = CalcBlocksWithNonMovableCount(); - if(blocksWithNonMovableCount > 0) - { - srcBlockMinIndex = blocksWithNonMovableCount - 1; - } - } - */ - - size_t srcBlockIndex = m_Blocks.size() - 1; - size_t srcAllocIndex = SIZE_MAX; - for (;;) - { - // 1. Find next allocation to move. - // 1.1. Start from last to first m_Blocks - they are sorted from most "destination" to most "source". - // 1.2. Then start from last to first m_Allocations. - while (srcAllocIndex >= m_Blocks[srcBlockIndex]->m_Allocations.size()) - { - if (m_Blocks[srcBlockIndex]->m_Allocations.empty()) - { - // Finished: no more allocations to process. - if (srcBlockIndex == srcBlockMinIndex) - { - return VK_SUCCESS; - } - else - { - --srcBlockIndex; - srcAllocIndex = SIZE_MAX; - } - } - else - { - srcAllocIndex = m_Blocks[srcBlockIndex]->m_Allocations.size() - 1; - } - } - - BlockInfo* pSrcBlockInfo = m_Blocks[srcBlockIndex]; - AllocationInfo& allocInfo = pSrcBlockInfo->m_Allocations[srcAllocIndex]; - - const VkDeviceSize size = allocInfo.m_hAllocation->GetSize(); - const VkDeviceSize srcOffset = allocInfo.m_hAllocation->GetOffset(); - const VkDeviceSize alignment = allocInfo.m_hAllocation->GetAlignment(); - const VmaSuballocationType suballocType = allocInfo.m_hAllocation->GetSuballocationType(); - - // 2. Try to find new place for this allocation in preceding or current block. - for (size_t dstBlockIndex = 0; dstBlockIndex <= srcBlockIndex; ++dstBlockIndex) - { - BlockInfo* pDstBlockInfo = m_Blocks[dstBlockIndex]; - VmaBlockMetadata* pMetadata = pDstBlockInfo->m_pBlock->m_pMetadata; - VmaAllocationRequest dstAllocRequest; - if (pMetadata->CreateAllocationRequest( - size, - alignment, - false, // upperAddress - suballocType, - strategy, - &dstAllocRequest) && - MoveMakesSense( - dstBlockIndex, pMetadata->GetAllocationOffset(dstAllocRequest.allocHandle), srcBlockIndex, srcOffset)) - { - // Reached limit on number of allocations or bytes to move. - if ((m_AllocationsMoved + 1 > maxAllocationsToMove) || - (m_BytesMoved + size > maxBytesToMove)) - { - return VK_SUCCESS; - } - - VmaDefragmentationMove move = {}; - move.srcBlockIndex = pSrcBlockInfo->m_OriginalBlockIndex; - move.dstBlockIndex = pDstBlockInfo->m_OriginalBlockIndex; - move.srcOffset = srcOffset; - move.dstOffset = pMetadata->GetAllocationOffset(dstAllocRequest.allocHandle); - move.size = size; - move.hAllocation = allocInfo.m_hAllocation; - move.pSrcBlock = pSrcBlockInfo->m_pBlock; - move.pDstBlock = pDstBlockInfo->m_pBlock; - move.dstHandle = dstAllocRequest.allocHandle; - - moves.push_back(move); - - pDstBlockInfo->m_pBlock->m_pMetadata->Alloc(dstAllocRequest, suballocType, allocInfo.m_hAllocation); - - if (freeOldAllocations) - { - pSrcBlockInfo->m_pBlock->m_pMetadata->Free(allocInfo.m_hAllocation->GetAllocHandle()); - allocInfo.m_hAllocation->ChangeBlockAllocation(m_hAllocator, pDstBlockInfo->m_pBlock, dstAllocRequest.allocHandle); - } - - if (allocInfo.m_pChanged != VMA_NULL) - { - *allocInfo.m_pChanged = VK_TRUE; - } - - ++m_AllocationsMoved; - m_BytesMoved += size; - - VmaVectorRemove(pSrcBlockInfo->m_Allocations, srcAllocIndex); - - break; - } - } - - // If not processed, this allocInfo remains in pBlockInfo->m_Allocations for next round. - - if (srcAllocIndex > 0) - { - --srcAllocIndex; - } - else - { - if (srcBlockIndex > 0) - { - --srcBlockIndex; - srcAllocIndex = SIZE_MAX; - } - else - { - return VK_SUCCESS; - } - } - } -} - -bool VmaDefragmentationAlgorithm_Generic::AllocationInfoSizeGreater::operator()(const AllocationInfo& lhs, const AllocationInfo& rhs) const -{ - return lhs.m_hAllocation->GetSize() > rhs.m_hAllocation->GetSize(); -} - -bool VmaDefragmentationAlgorithm_Generic::AllocationInfoOffsetGreater::operator()(const AllocationInfo& lhs, const AllocationInfo& rhs) const -{ - return lhs.m_hAllocation->GetOffset() > rhs.m_hAllocation->GetOffset(); -} - -VmaDefragmentationAlgorithm_Generic::BlockInfo::BlockInfo(const VkAllocationCallbacks* pAllocationCallbacks) - : m_OriginalBlockIndex(SIZE_MAX), - m_pBlock(VMA_NULL), - m_HasNonMovableAllocations(true), - m_Allocations(pAllocationCallbacks) {} - -void VmaDefragmentationAlgorithm_Generic::BlockInfo::CalcHasNonMovableAllocations() -{ - const size_t blockAllocCount = m_pBlock->m_pMetadata->GetAllocationCount(); - const size_t defragmentAllocCount = m_Allocations.size(); - m_HasNonMovableAllocations = blockAllocCount != defragmentAllocCount; -} - -void VmaDefragmentationAlgorithm_Generic::BlockInfo::SortAllocationsBySizeDescending() -{ - VMA_SORT(m_Allocations.begin(), m_Allocations.end(), AllocationInfoSizeGreater()); -} - -void VmaDefragmentationAlgorithm_Generic::BlockInfo::SortAllocationsByOffsetDescending() -{ - VMA_SORT(m_Allocations.begin(), m_Allocations.end(), AllocationInfoOffsetGreater()); -} - -bool VmaDefragmentationAlgorithm_Generic::BlockPointerLess::operator()(const BlockInfo* pLhsBlockInfo, const VmaDeviceMemoryBlock* pRhsBlock) const -{ - return pLhsBlockInfo->m_pBlock < pRhsBlock; -} -bool VmaDefragmentationAlgorithm_Generic::BlockPointerLess::operator()(const BlockInfo* pLhsBlockInfo, const BlockInfo* pRhsBlockInfo) const -{ - return pLhsBlockInfo->m_pBlock < pRhsBlockInfo->m_pBlock; -} - -bool VmaDefragmentationAlgorithm_Generic::BlockInfoCompareMoveDestination::operator()(const BlockInfo* pLhsBlockInfo, const BlockInfo* pRhsBlockInfo) const -{ - if (pLhsBlockInfo->m_HasNonMovableAllocations && !pRhsBlockInfo->m_HasNonMovableAllocations) - { - return true; - } - if (!pLhsBlockInfo->m_HasNonMovableAllocations && pRhsBlockInfo->m_HasNonMovableAllocations) - { - return false; - } - if (pLhsBlockInfo->m_pBlock->m_pMetadata->GetSumFreeSize() < pRhsBlockInfo->m_pBlock->m_pMetadata->GetSumFreeSize()) - { - return true; - } - return false; -} - -bool VmaDefragmentationAlgorithm_Generic::MoveMakesSense( - size_t dstBlockIndex, VkDeviceSize dstOffset, - size_t srcBlockIndex, VkDeviceSize srcOffset) -{ - if (dstBlockIndex < srcBlockIndex) - { - return true; - } - if (dstBlockIndex > srcBlockIndex) - { - return false; - } - if (dstOffset < srcOffset) - { - return true; - } - return false; -} - -size_t VmaDefragmentationAlgorithm_Generic::CalcBlocksWithNonMovableCount() const -{ - size_t result = 0; - for (size_t i = 0; i < m_Blocks.size(); ++i) - { - if (m_Blocks[i]->m_HasNonMovableAllocations) - { - ++result; - } - } - return result; -} - -VkResult VmaDefragmentationAlgorithm_Generic::Defragment( - VmaVector< VmaDefragmentationMove, VmaStlAllocator >& moves, - VkDeviceSize maxBytesToMove, - uint32_t maxAllocationsToMove, - VmaDefragmentationFlags flags) -{ - if (!m_AllAllocations && m_AllocationCount == 0) - { - return VK_SUCCESS; - } - - const size_t blockCount = m_Blocks.size(); - for (size_t blockIndex = 0; blockIndex < blockCount; ++blockIndex) - { - BlockInfo* pBlockInfo = m_Blocks[blockIndex]; - - if (m_AllAllocations) - { - VmaBlockMetadata_Generic* pMetadata = (VmaBlockMetadata_Generic*)pBlockInfo->m_pBlock->m_pMetadata; - VMA_ASSERT(!pMetadata->IsVirtual()); - for (VmaSuballocationList::const_iterator it = pMetadata->m_Suballocations.begin(); - it != pMetadata->m_Suballocations.end(); - ++it) - { - if (it->type != VMA_SUBALLOCATION_TYPE_FREE) - { - AllocationInfo allocInfo = AllocationInfo((VmaAllocation)it->userData, VMA_NULL); - pBlockInfo->m_Allocations.push_back(allocInfo); - } - } - } - - pBlockInfo->CalcHasNonMovableAllocations(); - - // This is a choice based on research. - // Option 1: - pBlockInfo->SortAllocationsByOffsetDescending(); - // Option 2: - //pBlockInfo->SortAllocationsBySizeDescending(); - } - - // Sort m_Blocks this time by the main criterium, from most "destination" to most "source" blocks. - VMA_SORT(m_Blocks.begin(), m_Blocks.end(), BlockInfoCompareMoveDestination()); - - // This is a choice based on research. - const uint32_t roundCount = 2; - - // Execute defragmentation rounds (the main part). - VkResult result = VK_SUCCESS; - for (uint32_t round = 0; (round < roundCount) && (result == VK_SUCCESS); ++round) - { - result = DefragmentRound(moves, maxBytesToMove, maxAllocationsToMove, !(flags & VMA_DEFRAGMENTATION_FLAG_INCREMENTAL)); - } - - return result; -} -#endif // _VMA_DEFRAGMENTATION_ALGORITHM_GENERIC_FUNCTIONS - -#ifndef _VMA_DEFRAGMENTATION_ALGORITHM_FAST_FUNCTIONS -VmaDefragmentationAlgorithm_Fast::VmaDefragmentationAlgorithm_Fast( - VmaAllocator hAllocator, - VmaBlockVector* pBlockVector, - bool overlappingMoveSupported) - : VmaDefragmentationAlgorithm(hAllocator, pBlockVector), - m_OverlappingMoveSupported(overlappingMoveSupported), - m_AllocationCount(0), - m_AllAllocations(false), - m_BytesMoved(0), - m_AllocationsMoved(0), - m_BlockInfos(VmaStlAllocator (hAllocator->GetAllocationCallbacks())) -{ - VMA_ASSERT(VMA_DEBUG_MARGIN == 0); -} - -VkResult VmaDefragmentationAlgorithm_Fast::Defragment( - VmaVector (hAllocator->GetAllocationCallbacks())), - defragmentationMoves(VmaStlAllocator (hAllocator->GetAllocationCallbacks())), - defragmentationMovesProcessed(0), - defragmentationMovesCommitted(0), - hasDefragmentationPlan(0), - m_hAllocator(hAllocator), - m_hCustomPool(hCustomPool), - m_pBlockVector(pBlockVector), - m_pAlgorithm(VMA_NULL), - m_Allocations(VmaStlAllocator (hAllocator->GetAllocationCallbacks())), - m_AllAllocations(false) {} - -VmaBlockVectorDefragmentationContext::~VmaBlockVectorDefragmentationContext() -{ - vma_delete(m_hAllocator, m_pAlgorithm); -} - -void VmaBlockVectorDefragmentationContext::AddAllocation(VmaAllocation hAlloc, VkBool32* pChanged) -{ - AllocInfo info = { hAlloc, pChanged }; - m_Allocations.push_back(info); -} - -void VmaBlockVectorDefragmentationContext::Begin(bool overlappingMoveSupported, VmaDefragmentationFlags flags) -{ - const bool allAllocations = m_AllAllocations || - m_Allocations.size() == m_pBlockVector->CalcAllocationCount(); - - /******************************** - HERE IS THE CHOICE OF DEFRAGMENTATION ALGORITHM. - ********************************/ - - /* - Fast algorithm is supported only when certain criteria are met: - - VMA_DEBUG_MARGIN is 0. - - All allocations in this block vector are movable. - - There is no possibility of image/buffer granularity conflict. - - The defragmentation is not incremental - */ - if (VMA_DEBUG_MARGIN == 0 && - allAllocations && - !m_pBlockVector->IsBufferImageGranularityConflictPossible() && - !(flags & VMA_DEFRAGMENTATION_FLAG_INCREMENTAL)) - { - m_pAlgorithm = vma_new(m_hAllocator, VmaDefragmentationAlgorithm_Fast)( - m_hAllocator, m_pBlockVector, overlappingMoveSupported); - } - else - { - m_pAlgorithm = vma_new(m_hAllocator, VmaDefragmentationAlgorithm_Generic)( - m_hAllocator, m_pBlockVector, overlappingMoveSupported); - } - - if (allAllocations) - { - m_pAlgorithm->AddAll(); - } - else - { - for (size_t i = 0, count = m_Allocations.size(); i < count; ++i) - { - m_pAlgorithm->AddAllocation(m_Allocations[i].hAlloc, m_Allocations[i].pChanged); - } - } -} -#endif // _VMA_BLOCK_VECTOR_DEFRAGMENTATION_CONTEXT_FUNCTIONS - #ifndef _VMA_DEFRAGMENTATION_CONTEXT_FUNCTIONS VmaDefragmentationContext_T::VmaDefragmentationContext_T( VmaAllocator hAllocator, - uint32_t flags, - VmaDefragmentationStats* pStats) - : m_hAllocator(hAllocator), - m_Flags(flags), - m_pStats(pStats), - m_CustomPoolContexts(VmaStlAllocator (m_Moves.size()); + if (moveInfo.moveCount > 0) { - VmaBlockVectorDefragmentationContext* pBlockVectorCtx = m_CustomPoolContexts[customCtxIndex]; - VMA_ASSERT(pBlockVectorCtx && pBlockVectorCtx->GetBlockVector()); - pBlockVectorCtx->GetBlockVector()->Defragment( - pBlockVectorCtx, - pStats, flags, - maxCpuBytesToMove, maxCpuAllocationsToMove, - maxGpuBytesToMove, maxGpuAllocationsToMove, - commandBuffer); - if (pBlockVectorCtx->res != VK_SUCCESS) - { - res = pBlockVectorCtx->res; - } + moveInfo.pMoves = m_Moves.data(); + return VK_INCOMPLETE; } - return res; -} - -VkResult VmaDefragmentationContext_T::DefragmentPassBegin(VmaDefragmentationPassInfo* pInfo) -{ - VmaDefragmentationPassMoveInfo* pCurrentMove = pInfo->pMoves; - uint32_t movesLeft = pInfo->moveCount; - - // Process default pools. - for (uint32_t memTypeIndex = 0; - memTypeIndex < m_hAllocator->GetMemoryTypeCount(); - ++memTypeIndex) - { - VmaBlockVectorDefragmentationContext* pBlockVectorCtx = m_DefaultPoolContexts[memTypeIndex]; - if (pBlockVectorCtx) - { - VMA_ASSERT(pBlockVectorCtx->GetBlockVector()); - - if (!pBlockVectorCtx->hasDefragmentationPlan) - { - pBlockVectorCtx->GetBlockVector()->Defragment( - pBlockVectorCtx, - m_pStats, m_Flags, - m_MaxCpuBytesToMove, m_MaxCpuAllocationsToMove, - m_MaxGpuBytesToMove, m_MaxGpuAllocationsToMove, - VK_NULL_HANDLE); - - if (pBlockVectorCtx->res < VK_SUCCESS) - continue; - - pBlockVectorCtx->hasDefragmentationPlan = true; - } - - const uint32_t processed = pBlockVectorCtx->GetBlockVector()->ProcessDefragmentations( - pBlockVectorCtx, - pCurrentMove, movesLeft); - - movesLeft -= processed; - pCurrentMove += processed; - } - } - - // Process custom pools. - for (size_t customCtxIndex = 0, customCtxCount = m_CustomPoolContexts.size(); - customCtxIndex < customCtxCount; - ++customCtxIndex) - { - VmaBlockVectorDefragmentationContext* pBlockVectorCtx = m_CustomPoolContexts[customCtxIndex]; - VMA_ASSERT(pBlockVectorCtx && pBlockVectorCtx->GetBlockVector()); - - if (!pBlockVectorCtx->hasDefragmentationPlan) - { - pBlockVectorCtx->GetBlockVector()->Defragment( - pBlockVectorCtx, - m_pStats, m_Flags, - m_MaxCpuBytesToMove, m_MaxCpuAllocationsToMove, - m_MaxGpuBytesToMove, m_MaxGpuAllocationsToMove, - VK_NULL_HANDLE); - - if (pBlockVectorCtx->res < VK_SUCCESS) - continue; - - pBlockVectorCtx->hasDefragmentationPlan = true; - } - - const uint32_t processed = pBlockVectorCtx->GetBlockVector()->ProcessDefragmentations( - pBlockVectorCtx, - pCurrentMove, movesLeft); - - movesLeft -= processed; - pCurrentMove += processed; - } - - pInfo->moveCount = pInfo->moveCount - movesLeft; - + moveInfo.pMoves = VMA_NULL; return VK_SUCCESS; } -VkResult VmaDefragmentationContext_T::DefragmentPassEnd() +VkResult VmaDefragmentationContext_T::DefragmentPassEnd(VmaDefragmentationPassMoveInfo& moveInfo) { - VkResult res = VK_SUCCESS; + VMA_ASSERT(moveInfo.moveCount > 0 ? moveInfo.pMoves != VMA_NULL : true); - // Process default pools. - for (uint32_t memTypeIndex = 0; - memTypeIndex < m_hAllocator->GetMemoryTypeCount(); - ++memTypeIndex) + VkResult result = VK_SUCCESS; + VmaVector (move.internalData); + switch (move.operation) + { + case VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY: + { + move.srcAllocation->SwapBlockAllocation(dst); + prevCount = vector->GetBlockCount(); + freedBlockSize = dst->GetBlock()->m_pMetadata->GetSize(); + vector->Free(dst, false); + currentCount = vector->GetBlockCount(); + + result = VK_INCOMPLETE; + break; + } + case VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE: + { + m_Stats.bytesMoved -= move.srcAllocation->GetSize(); + vector->Free(dst, false); + + VmaDeviceMemoryBlock* newBlock = move.srcAllocation->GetBlock(); + bool notPresent = true; + for (const ImmovableBlock& block : immovableBlocks) { - res = VK_NOT_READY; + if (block.block == newBlock) + { + notPresent = false; + break; + } + } + if (notPresent) + immovableBlocks.push_back({ vectorIndex, newBlock }); + break; + } + case VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY: + { + prevCount = vector->GetBlockCount(); + freedBlockSize = move.srcAllocation->GetBlock()->m_pMetadata->GetSize(); + vector->Free(move.srcAllocation, false); + currentCount = vector->GetBlockCount(); + freedBlockSize *= prevCount - currentCount; + + VkDeviceSize dstBlockSize = dst->GetBlock()->m_pMetadata->GetSize(); + vector->Free(dst, false); + freedBlockSize += dstBlockSize * (currentCount - vector->GetBlockCount()); + currentCount = vector->GetBlockCount(); + + result = VK_INCOMPLETE; + break; + } + default: + VMA_ASSERT(0); + } + + if (prevCount > currentCount) + { + size_t freedBlocks = prevCount - currentCount; + m_Stats.deviceMemoryBlocksFreed += static_cast (freedBlocks); + m_Stats.bytesFreed += freedBlockSize; + } + + switch (m_Algorithm) + { + case VMA_DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT: + { + if (m_AlgorithmState != VMA_NULL) + { + // Avoid unnecessary tries to allocate when new free block is avaiable + StateExtensive& state = reinterpret_cast buffers; -std::vector allocations; - - -const uint32_t allocCount = (uint32_t)allocations.size(); -std::vector allocationsChanged(allocCount); - -VmaDefragmentationInfo2 defragInfo = {}; -defragInfo.allocationCount = allocCount; -defragInfo.pAllocations = allocations.data(); -defragInfo.pAllocationsChanged = allocationsChanged.data(); -defragInfo.maxCpuBytesToMove = VK_WHOLE_SIZE; // No limit. -defragInfo.maxCpuAllocationsToMove = UINT32_MAX; // No limit. - -VmaDefragmentationContext defragCtx; -vmaDefragmentationBegin(allocator, &defragInfo, nullptr, &defragCtx); -vmaDefragmentationEnd(allocator, defragCtx); - -for(uint32_t i = 0; i < allocCount; ++i) -{ - if(allocationsChanged[i]) - { - // Destroy buffer that is immutably bound to memory region which is no longer valid. - vkDestroyBuffer(device, buffers[i], nullptr); - - // Create new buffer with same parameters. - VkBufferCreateInfo bufferInfo = ...; - vkCreateBuffer(device, &bufferInfo, nullptr, &buffers[i]); - - // You can make dummy call to vkGetBufferMemoryRequirements here to silence validation layer warning. - - // Bind new buffer to new memory region. Data contained in it is already moved. - VmaAllocationInfo allocInfo; - vmaGetAllocationInfo(allocator, allocations[i], &allocInfo); - vmaBindBufferMemory(allocator, allocations[i], buffers[i]); - } -} -\endcode - -Setting VmaDefragmentationInfo2::pAllocationsChanged is optional. -This output array tells whether particular allocation in VmaDefragmentationInfo2::pAllocations at the same index -has been modified during defragmentation. -You can pass null, but you then need to query every allocation passed to defragmentation -for new parameters using vmaGetAllocationInfo() if you might need to recreate and rebind a buffer or image associated with it. - -If you use [Custom memory pools](@ref choosing_memory_type_custom_memory_pools), -you can fill VmaDefragmentationInfo2::poolCount and VmaDefragmentationInfo2::pPools -instead of VmaDefragmentationInfo2::allocationCount and VmaDefragmentationInfo2::pAllocations -to defragment all allocations in given pools. -You cannot use VmaDefragmentationInfo2::pAllocationsChanged in that case. -You can also combine both methods. - -\section defragmentation_gpu Defragmenting GPU memory - -It is also possible to defragment allocations created in memory types that are not `HOST_VISIBLE`. -To do that, you need to pass a command buffer that meets requirements as described in -VmaDefragmentationInfo2::commandBuffer. The way it works is: - -- It creates temporary buffers and binds them to entire memory blocks when necessary. -- It issues `vkCmdCopyBuffer()` to passed command buffer. +To mitigate this problem, you can use defragmentation feature. +It doesn't happen automatically thought and needs your cooperation, +because VMA is a low level library that only allocates memory. +It cannot recreate buffers and images in a new place as it doesn't remember the contents of `VkBufferCreateInfo` / `VkImageCreateInfo` structures. +It cannot copy their contents as it doesn't record any commands to a command buffer. Example: \code -// Given following variables already initialized: -VkDevice device; -VmaAllocator allocator; -VkCommandBuffer commandBuffer; -std::vector buffers; -std::vector allocations; - - -const uint32_t allocCount = (uint32_t)allocations.size(); -std::vector allocationsChanged(allocCount); - -VkCommandBufferBeginInfo cmdBufBeginInfo = ...; -vkBeginCommandBuffer(commandBuffer, &cmdBufBeginInfo); - -VmaDefragmentationInfo2 defragInfo = {}; -defragInfo.allocationCount = allocCount; -defragInfo.pAllocations = allocations.data(); -defragInfo.pAllocationsChanged = allocationsChanged.data(); -defragInfo.maxGpuBytesToMove = VK_WHOLE_SIZE; // Notice it is "GPU" this time. -defragInfo.maxGpuAllocationsToMove = UINT32_MAX; // Notice it is "GPU" this time. -defragInfo.commandBuffer = commandBuffer; +VmaDefragmentationInfo defragInfo = {}; +defragInfo.pool = myPool; +defragInfo.flags = VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT; VmaDefragmentationContext defragCtx; -vmaDefragmentationBegin(allocator, &defragInfo, nullptr, &defragCtx); +VkResult res = vmaBeginDefragmentation(allocator, &defragInfo, &defragCtx); +// Check res... -vkEndCommandBuffer(commandBuffer); - -// Submit commandBuffer. -// Wait for a fence that ensures commandBuffer execution finished. - -vmaDefragmentationEnd(allocator, defragCtx); - -for(uint32_t i = 0; i < allocCount; ++i) +for(;;) { - if(allocationsChanged[i]) + VmaDefragmentationPassMoveInfo pass; + res = vmaBeginDefragmentationPass(allocator, defragCtx, &pass); + if(res == VK_SUCCESS) + break; + else if(res == VK_INCOMPLETE) { - // Destroy buffer that is immutably bound to memory region which is no longer valid. - vkDestroyBuffer(device, buffers[i], nullptr); - - // Create new buffer with same parameters. - VkBufferCreateInfo bufferInfo = ...; - vkCreateBuffer(device, &bufferInfo, nullptr, &buffers[i]); - - // You can make dummy call to vkGetBufferMemoryRequirements here to silence validation layer warning. - - // Bind new buffer to new memory region. Data contained in it is already moved. - VmaAllocationInfo allocInfo; - vmaGetAllocationInfo(allocator, allocations[i], &allocInfo); - vmaBindBufferMemory(allocator, allocations[i], buffers[i]); + for(uint32_t i = 0; i < pass.moveCount; ++i) + { + //- Inspect pass.pMoves[i].srcAllocation, identify what buffer or image it represents. + //- Recreate this buffer or image at pass.pMoves[i].dstMemory, pass.pMoves[i].dstOffset. + //- Issue a vkCmdCopyBuffer/vkCmdCopyImage to copy its content to the new place. + } + //- Make sure the copy commands finished executing. + //- Update appropriate descriptors to point to the new places. + vmaEndDefragmentationPass(allocator, defragCtx, &pass); } + else + // Handle error... } + +vmaEndDefragmentation(allocator, defragCtx, nullptr); \endcode -You can combine these two methods by specifying non-zero `maxGpu*` as well as `maxCpu*` parameters. -The library automatically chooses best method to defragment each memory pool. +You can defragment a specific custom pool by setting VmaDefragmentationInfo::pool +(like in the example above) or all the default pools by setting this member to null. -You may try not to block your entire program to wait until defragmentation finishes, -but do it in the background, as long as you carefully fullfill requirements described -in function vmaDefragmentationBegin(). +Unlike in previous iterations of the defragmentation API, there is no list of "movable" allocations passed as a parameter. +Defragmentation algorithm tries to move all suitable allocations. +You can, however, refuse to move some of them inside a defragmentation pass, by setting +`pass.pMoves[i].operation` to #VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE. +However, this is not recommended and may result in suboptimal packing of the allocations after defragmentation. +If you cannot ensure any allocation can be moved, it is better to keep movable allocations separate in a custom pool. -\section defragmentation_additional_notes Additional notes +You can also decide to destroy an allocation instead of moving it. +You should then set `pass.pMoves[i].operation` to #VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY. -It is only legal to defragment allocations bound to: +You can perform the defragmentation incrementally to limit the number of allocations and bytes to be moved +in each pass, e.g. to call it in sync with render frames and not to experience too big hitches. +See members: VmaDefragmentationInfo::maxBytesPerPass, VmaDefragmentationInfo::maxAllocationsPerPass. -- buffers -- images created with `VK_IMAGE_CREATE_ALIAS_BIT`, `VK_IMAGE_TILING_LINEAR`, and - being currently in `VK_IMAGE_LAYOUT_GENERAL` or `VK_IMAGE_LAYOUT_PREINITIALIZED`. - -Defragmentation of images created with `VK_IMAGE_TILING_OPTIMAL` or in any other -layout may give undefined results. - -If you defragment allocations bound to images, new images to be bound to new -memory region after defragmentation should be created with `VK_IMAGE_LAYOUT_PREINITIALIZED` -and then transitioned to their original layout from before defragmentation if -needed using an image memory barrier. - -While using defragmentation, you may experience validation layer warnings, which you just need to ignore. -See [Validation layer warnings](@ref general_considerations_validation_layer_warnings). - -Please don't expect memory to be fully compacted after defragmentation. -Algorithms inside are based on some heuristics that try to maximize number of Vulkan -memory blocks to make totally empty to release them, as well as to maximize continuous -empty space inside remaining blocks, while minimizing the number and size of allocations that -need to be moved. Some fragmentation may still remain - this is normal. - -\section defragmentation_custom_algorithm Writing custom defragmentation algorithm - -If you want to implement your own, custom defragmentation algorithm, -there is infrastructure prepared for that, -but it is not exposed through the library API - you need to hack its source code. -Here are steps needed to do this: - --# Main thing you need to do is to define your own class derived from base abstract - class `VmaDefragmentationAlgorithm` and implement your version of its pure virtual methods. - See definition and comments of this class for details. --# Your code needs to interact with device memory block metadata. - If you need more access to its data than it is provided by its public interface, - declare your new class as a friend class e.g. in class `VmaBlockMetadata_Generic`. --# If you want to create a flag that would enable your algorithm or pass some additional - flags to configure it, add them to `VmaDefragmentationFlagBits` and use them in - VmaDefragmentationInfo2::flags. --# Modify function `VmaBlockVectorDefragmentationContext::Begin` to create object - of your new class whenever needed. +It is also safe to perform the defragmentation asynchronously to render frames and other Vulkan and VMA +usage, possibly from multiple threads, with the exception that allocations +returned in VmaDefragmentationPassMoveInfo::pMoves shouldn't be destroyed until the defragmentation pass is ended. \page statistics Statistics @@ -19809,7 +18369,6 @@ allocations, which have their own memory block of specific size. It is thus not applied to allocations made using #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT flag or those automatically decided to put into dedicated allocations, e.g. due to its large size or recommended by VK_KHR_dedicated_allocation extension. -Margins are also not active in custom pools created with #VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT flag. Margins appear in [JSON dump](@ref statistics_json_dump) as part of free space. diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index a55a6ab..a14bc8a 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -69,6 +69,9 @@ if(VMA_BUILD_SAMPLE) # Set VmaSample as startup project set_property(DIRECTORY "${PROJECT_SOURCE_DIR}" PROPERTY VS_STARTUP_PROJECT "VmaSample") + + # Add C++ warnings and security checks + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /permissive- /sdl /W3") # Enable multithreaded compiling target_compile_options(VmaSample PRIVATE "/MP") diff --git a/src/Tests.cpp b/src/Tests.cpp index 0b455f2..9937691 100644 --- a/src/Tests.cpp +++ b/src/Tests.cpp @@ -56,7 +56,7 @@ enum CONFIG_TYPE CONFIG_TYPE_COUNT }; -static constexpr CONFIG_TYPE ConfigType = CONFIG_TYPE_SMALL; +static constexpr CONFIG_TYPE ConfigType = CONFIG_TYPE_AVERAGE; //static constexpr CONFIG_TYPE ConfigType = CONFIG_TYPE_LARGE; enum class FREE_ORDER { FORWARD, BACKWARD, RANDOM, COUNT }; @@ -75,12 +75,8 @@ static const char* AlgorithmToStr(uint32_t algorithm) { case VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT: return "Linear"; - case VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT: - return "Buddy"; - case VMA_POOL_CREATE_TLSF_ALGORITHM_BIT: - return "TLSF"; case 0: - return "Default"; + return "TLSF"; default: assert(0); return ""; @@ -93,18 +89,34 @@ static const char* VirtualAlgorithmToStr(uint32_t algorithm) { case VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT: return "Linear"; - case VMA_VIRTUAL_BLOCK_CREATE_BUDDY_ALGORITHM_BIT: - return "Buddy"; - case VMA_VIRTUAL_BLOCK_CREATE_TLSF_ALGORITHM_BIT: - return "TLSF"; case 0: - return "Default"; + return "TLSF"; default: assert(0); return ""; } } +static const wchar_t* DefragmentationAlgorithmToStr(uint32_t algorithm) +{ + switch (algorithm) + { + case VMA_DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED_BIT: + return L"Balanced"; + case VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT: + return L"Fast"; + case VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT: + return L"Full"; + case VMA_DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT: + return L"Extensive"; + case 0: + return L"Default"; + default: + assert(0); + return L""; + } +} + struct AllocationSize { uint32_t Probability; @@ -135,9 +147,6 @@ struct Result VkDeviceSize FreeRangeSizeAvg, FreeRangeSizeMax; }; -void TestDefragmentationSimple(); -void TestDefragmentationFull(); - struct PoolTestConfig { uint32_t RandSeed; @@ -1169,7 +1178,7 @@ static void GetMemReq(VmaAllocationCreateInfo& outMemReq) } static void CreateBuffer( - VmaPool pool, + VmaAllocationCreateInfo allocCreateInfo, const VkBufferCreateInfo& bufCreateInfo, bool persistentlyMapped, AllocInfo& outAllocInfo) @@ -1177,10 +1186,8 @@ static void CreateBuffer( outAllocInfo = {}; outAllocInfo.m_BufferInfo = bufCreateInfo; - VmaAllocationCreateInfo allocCreateInfo = {}; - allocCreateInfo.pool = pool; - if(persistentlyMapped) - allocCreateInfo.flags = VMA_ALLOCATION_CREATE_MAPPED_BIT; + if (persistentlyMapped) + allocCreateInfo.flags |= VMA_ALLOCATION_CREATE_MAPPED_BIT; VmaAllocationInfo vmaAllocInfo = {}; ERR_GUARD_VULKAN( vmaCreateBuffer(g_hAllocator, &bufCreateInfo, &allocCreateInfo, &outAllocInfo.m_Buffer, &outAllocInfo.m_Allocation, &vmaAllocInfo) ); @@ -1205,6 +1212,45 @@ static void CreateBuffer( } } +void CreateImage( + VmaAllocationCreateInfo allocCreateInfo, + const VkImageCreateInfo& imgCreateInfo, + VkImageLayout dstLayout, + bool persistentlyMapped, + AllocInfo& outAllocInfo) +{ + if (persistentlyMapped) + allocCreateInfo.flags |= VMA_ALLOCATION_CREATE_MAPPED_BIT; + outAllocInfo.CreateImage(imgCreateInfo, allocCreateInfo, dstLayout); + + // Perform barrier into destination layout + if (dstLayout != imgCreateInfo.initialLayout) + { + BeginSingleTimeCommands(); + + VkImageMemoryBarrier barrier = { VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER }; + barrier.srcAccessMask = VK_ACCESS_MEMORY_WRITE_BIT; + barrier.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT; + barrier.oldLayout = imgCreateInfo.initialLayout; + barrier.newLayout = dstLayout; + barrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; + barrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; + barrier.image = outAllocInfo.m_Image; + barrier.subresourceRange = + { + VK_IMAGE_ASPECT_COLOR_BIT, + 0, VK_REMAINING_MIP_LEVELS, + 0, VK_REMAINING_ARRAY_LAYERS + }; + + vkCmdPipelineBarrier(g_hTemporaryCommandBuffer, + VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, + 0, nullptr, 0, nullptr, 1, &barrier); + + EndSingleTimeCommands(); + } +} + static void CreateAllocation(AllocInfo& outAllocation) { outAllocation.m_Allocation = nullptr; @@ -1227,7 +1273,7 @@ static void CreateAllocation(AllocInfo& outAllocation) VkBufferCreateInfo bufferInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; bufferInfo.size = bufferSize; - bufferInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT; + bufferInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; VkResult res = vmaCreateBuffer(g_hAllocator, &bufferInfo, &vmaMemReq, &outAllocation.m_Buffer, &outAllocation.m_Allocation, &allocInfo); outAllocation.m_BufferInfo = bufferInfo; @@ -1253,7 +1299,7 @@ static void CreateAllocation(AllocInfo& outAllocation) imageInfo.samples = VK_SAMPLE_COUNT_1_BIT; imageInfo.tiling = VK_IMAGE_TILING_OPTIMAL; imageInfo.initialLayout = VK_IMAGE_LAYOUT_PREINITIALIZED; - imageInfo.usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT; + imageInfo.usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT; VkResult res = vmaCreateImage(g_hAllocator, &imageInfo, &vmaMemReq, &outAllocation.m_Image, &outAllocation.m_Allocation, &allocInfo); outAllocation.m_ImageInfo = imageInfo; @@ -1305,16 +1351,23 @@ static void ValidateAllocationData(const AllocInfo& allocation) uint32_t value = allocation.m_StartValue; bool ok = true; - size_t i; - TEST(allocInfo.size % 4 == 0); - for(i = 0; i < allocInfo.size / sizeof(uint32_t); ++i) + if(allocation.m_Buffer) { - if(data[i] != value++) + TEST(allocInfo.size % 4 == 0); + for(size_t i = 0; i < allocInfo.size / sizeof(uint32_t); ++i) { - ok = false; - break; + if(data[i] != value++) + { + ok = false; + break; + } } } + else + { + TEST(allocation.m_Image); + // Images not currently supported. + } TEST(ok); if(allocInfo.pMappedData == nullptr) @@ -1357,26 +1410,240 @@ static void RecreateAllocationResource(AllocInfo& allocation) } } -static void Defragment(AllocInfo* allocs, size_t allocCount, - const VmaDefragmentationInfo* defragmentationInfo = nullptr, - VmaDefragmentationStats* defragmentationStats = nullptr) +static void ProcessDefragmentationPass(VmaDefragmentationPassMoveInfo& stepInfo) { - std::vector vmaAllocs(allocCount); - for(size_t i = 0; i < allocCount; ++i) - vmaAllocs[i] = allocs[i].m_Allocation; + std::vector beginImageBarriers; + std::vector finalizeImageBarriers; - std::vector allocChanged(allocCount); - - ERR_GUARD_VULKAN( vmaDefragment(g_hAllocator, vmaAllocs.data(), allocCount, allocChanged.data(), - defragmentationInfo, defragmentationStats) ); + VkPipelineStageFlags beginSrcStageMask = 0; + VkPipelineStageFlags beginDstStageMask = VK_PIPELINE_STAGE_TRANSFER_BIT; - for(size_t i = 0; i < allocCount; ++i) + VkPipelineStageFlags finalizeSrcStageMask = VK_PIPELINE_STAGE_TRANSFER_BIT; + VkPipelineStageFlags finalizeDstStageMask = 0; + + bool wantsMemoryBarrier = false; + + VkMemoryBarrier beginMemoryBarrier = { VK_STRUCTURE_TYPE_MEMORY_BARRIER }; + VkMemoryBarrier finalizeMemoryBarrier = { VK_STRUCTURE_TYPE_MEMORY_BARRIER }; + + for (uint32_t i = 0; i < stepInfo.moveCount; ++i) { - if(allocChanged[i]) + if (stepInfo.pMoves[i].operation == VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY) { - RecreateAllocationResource(allocs[i]); + VmaAllocationInfo info; + vmaGetAllocationInfo(g_hAllocator, stepInfo.pMoves[i].srcAllocation, &info); + + AllocInfo* allocInfo = (AllocInfo*)info.pUserData; + + if (allocInfo->m_Image) + { + VkImage newImage; + + const VkResult result = vkCreateImage(g_hDevice, &allocInfo->m_ImageInfo, g_Allocs, &newImage); + TEST(result >= VK_SUCCESS); + + vkBindImageMemory(g_hDevice, newImage, stepInfo.pMoves[i].dstMemory, stepInfo.pMoves[i].dstOffset); + allocInfo->m_NewImage = newImage; + + // Keep track of our pipeline stages that we need to wait/signal on + beginSrcStageMask |= VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT; + finalizeDstStageMask |= VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT; + + // We need one pipeline barrier and two image layout transitions here + // First we'll have to turn our newly created image into VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL + // And the second one is turning the old image into VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL + + VkImageSubresourceRange subresourceRange = { + VK_IMAGE_ASPECT_COLOR_BIT, + 0, VK_REMAINING_MIP_LEVELS, + 0, VK_REMAINING_ARRAY_LAYERS + }; + + VkImageMemoryBarrier barrier = { VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER }; + barrier.srcAccessMask = 0; + barrier.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT; + barrier.oldLayout = VK_IMAGE_LAYOUT_UNDEFINED; + barrier.newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL; + barrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; + barrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; + barrier.image = newImage; + barrier.subresourceRange = subresourceRange; + + beginImageBarriers.push_back(barrier); + + // Second barrier to convert the existing image. This one actually needs a real barrier + barrier.srcAccessMask = VK_ACCESS_MEMORY_WRITE_BIT; + barrier.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT; + barrier.oldLayout = allocInfo->m_ImageLayout; + barrier.newLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL; + barrier.image = allocInfo->m_Image; + + beginImageBarriers.push_back(barrier); + + // And lastly we need a barrier that turns our new image into the layout of the old one + barrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT; + barrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT; + barrier.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL; + barrier.newLayout = allocInfo->m_ImageLayout; + barrier.image = newImage; + + finalizeImageBarriers.push_back(barrier); + } + else if (allocInfo->m_Buffer) + { + VkBuffer newBuffer; + + const VkResult result = vkCreateBuffer(g_hDevice, &allocInfo->m_BufferInfo, g_Allocs, &newBuffer); + TEST(result >= VK_SUCCESS); + + vkBindBufferMemory(g_hDevice, newBuffer, stepInfo.pMoves[i].dstMemory, stepInfo.pMoves[i].dstOffset); + allocInfo->m_NewBuffer = newBuffer; + + // Keep track of our pipeline stages that we need to wait/signal on + beginSrcStageMask |= VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT; + finalizeDstStageMask |= VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT; + + beginMemoryBarrier.srcAccessMask |= VK_ACCESS_MEMORY_WRITE_BIT; + beginMemoryBarrier.dstAccessMask |= VK_ACCESS_TRANSFER_READ_BIT; + + finalizeMemoryBarrier.srcAccessMask |= VK_ACCESS_TRANSFER_WRITE_BIT; + finalizeMemoryBarrier.dstAccessMask |= VK_ACCESS_MEMORY_READ_BIT; + + wantsMemoryBarrier = true; + } } } + + if (!beginImageBarriers.empty() || wantsMemoryBarrier) + { + const uint32_t memoryBarrierCount = wantsMemoryBarrier ? 1 : 0; + + vkCmdPipelineBarrier(g_hTemporaryCommandBuffer, beginSrcStageMask, beginDstStageMask, 0, + memoryBarrierCount, &beginMemoryBarrier, + 0, nullptr, + (uint32_t)beginImageBarriers.size(), beginImageBarriers.data()); + } + + for (uint32_t i = 0; i < stepInfo.moveCount; ++i) + { + if (stepInfo.pMoves[i].operation == VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY) + { + VmaAllocationInfo info; + vmaGetAllocationInfo(g_hAllocator, stepInfo.pMoves[i].srcAllocation, &info); + + AllocInfo* allocInfo = (AllocInfo*)info.pUserData; + + if (allocInfo->m_Image) + { + std::vector imageCopies; + + // Copy all mips of the source image into the target image + VkOffset3D offset = { 0, 0, 0 }; + VkExtent3D extent = allocInfo->m_ImageInfo.extent; + + VkImageSubresourceLayers subresourceLayers = { + VK_IMAGE_ASPECT_COLOR_BIT, + 0, + 0, 1 + }; + + for (uint32_t mip = 0; mip < allocInfo->m_ImageInfo.mipLevels; ++mip) + { + subresourceLayers.mipLevel = mip; + + VkImageCopy imageCopy{ + subresourceLayers, + offset, + subresourceLayers, + offset, + extent + }; + + imageCopies.push_back(imageCopy); + + extent.width = std::max(uint32_t(1), extent.width >> 1); + extent.height = std::max(uint32_t(1), extent.height >> 1); + extent.depth = std::max(uint32_t(1), extent.depth >> 1); + } + + vkCmdCopyImage( + g_hTemporaryCommandBuffer, + allocInfo->m_Image, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, + allocInfo->m_NewImage, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, + (uint32_t)imageCopies.size(), imageCopies.data()); + } + else if (allocInfo->m_Buffer) + { + VkBufferCopy region = { + 0, + 0, + allocInfo->m_BufferInfo.size }; + + vkCmdCopyBuffer(g_hTemporaryCommandBuffer, + allocInfo->m_Buffer, allocInfo->m_NewBuffer, + 1, ®ion); + } + } + } + + if (!finalizeImageBarriers.empty() || wantsMemoryBarrier) + { + const uint32_t memoryBarrierCount = wantsMemoryBarrier ? 1 : 0; + + vkCmdPipelineBarrier(g_hTemporaryCommandBuffer, finalizeSrcStageMask, finalizeDstStageMask, 0, + memoryBarrierCount, &finalizeMemoryBarrier, + 0, nullptr, + (uint32_t)finalizeImageBarriers.size(), finalizeImageBarriers.data()); + } +} + +static void Defragment(VmaDefragmentationInfo& defragmentationInfo, + VmaDefragmentationStats* defragmentationStats = nullptr) +{ + VmaDefragmentationContext defragCtx = nullptr; + VkResult res = vmaBeginDefragmentation(g_hAllocator, &defragmentationInfo, &defragCtx); + TEST(res == VK_SUCCESS); + + VmaDefragmentationPassMoveInfo pass; + while ((res = vmaBeginDefragmentationPass(g_hAllocator, defragCtx, &pass)) == VK_INCOMPLETE) + { + BeginSingleTimeCommands(); + ProcessDefragmentationPass(pass); + EndSingleTimeCommands(); + + // Destroy old buffers/images and replace them with new handles. + for(size_t i = 0; i < pass.moveCount; ++i) + { + VmaAllocation const alloc = pass.pMoves[i].srcAllocation; + VmaAllocationInfo vmaAllocInfo; + vmaGetAllocationInfo(g_hAllocator, alloc, &vmaAllocInfo); + AllocInfo* allocInfo = (AllocInfo*)vmaAllocInfo.pUserData; + + if(allocInfo->m_Buffer) + { + assert(allocInfo->m_NewBuffer && !allocInfo->m_Image && !allocInfo->m_NewImage); + vkDestroyBuffer(g_hDevice, allocInfo->m_Buffer, g_Allocs); + allocInfo->m_Buffer = allocInfo->m_NewBuffer; + allocInfo->m_NewBuffer = VK_NULL_HANDLE; + } + else if(allocInfo->m_Image) + { + assert(allocInfo->m_NewImage && !allocInfo->m_Buffer && !allocInfo->m_NewBuffer); + vkDestroyImage(g_hDevice, allocInfo->m_Image, g_Allocs); + allocInfo->m_Image = allocInfo->m_NewImage; + allocInfo->m_NewImage = VK_NULL_HANDLE; + } + else + assert(0); + } + if ((res = vmaEndDefragmentationPass(g_hAllocator, defragCtx, &pass)) == VK_SUCCESS) + break; + TEST(res == VK_INCOMPLETE); + } + TEST(res == VK_SUCCESS); + + res = vmaEndDefragmentation(g_hAllocator, defragCtx, defragmentationStats); + TEST(res == VK_SUCCESS); } static void ValidateAllocationsData(const AllocInfo* allocs, size_t allocCount) @@ -1397,41 +1664,47 @@ void TestDefragmentationSimple() const VkDeviceSize MIN_BUF_SIZE = 32; const VkDeviceSize MAX_BUF_SIZE = BUF_SIZE * 4; - auto RandomBufSize = [&]() -> VkDeviceSize { + auto RandomBufSize = [&]() -> VkDeviceSize + { return align_up (rand.Generate() % (MAX_BUF_SIZE - MIN_BUF_SIZE + 1) + MIN_BUF_SIZE, 32); }; VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; bufCreateInfo.size = BUF_SIZE; - bufCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT; + bufCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; - VmaAllocationCreateInfo exampleAllocCreateInfo = {}; - exampleAllocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO; - exampleAllocCreateInfo.flags = VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT; + VmaAllocationCreateInfo allocCreateInfo = {}; + allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO; + allocCreateInfo.flags = VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT; uint32_t memTypeIndex = UINT32_MAX; - vmaFindMemoryTypeIndexForBufferInfo(g_hAllocator, &bufCreateInfo, &exampleAllocCreateInfo, &memTypeIndex); + vmaFindMemoryTypeIndexForBufferInfo(g_hAllocator, &bufCreateInfo, &allocCreateInfo, &memTypeIndex); VmaPoolCreateInfo poolCreateInfo = {}; poolCreateInfo.blockSize = BLOCK_SIZE; poolCreateInfo.memoryTypeIndex = memTypeIndex; VmaPool pool; - ERR_GUARD_VULKAN( vmaCreatePool(g_hAllocator, &poolCreateInfo, &pool) ); + TEST(vmaCreatePool(g_hAllocator, &poolCreateInfo, &pool) == VK_SUCCESS); + allocCreateInfo.pool = pool; + + VmaDefragmentationInfo defragInfo = {}; + defragInfo.flags = VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT; + defragInfo.pool = pool; // Defragmentation of empty pool. { - VmaDefragmentationInfo2 defragInfo = {}; - defragInfo.maxCpuBytesToMove = VK_WHOLE_SIZE; - defragInfo.maxCpuAllocationsToMove = UINT32_MAX; - defragInfo.poolCount = 1; - defragInfo.pPools = &pool; + VmaDefragmentationContext defragCtx = nullptr; + VkResult res = vmaBeginDefragmentation(g_hAllocator, &defragInfo, &defragCtx); + TEST(res == VK_SUCCESS); + + VmaDefragmentationPassMoveInfo pass; + res = vmaBeginDefragmentationPass(g_hAllocator, defragCtx, &pass); + TEST(res == VK_SUCCESS); VmaDefragmentationStats defragStats = {}; - VmaDefragmentationContext defragCtx = nullptr; - VkResult res = vmaDefragmentationBegin(g_hAllocator, &defragInfo, &defragStats, &defragCtx); - TEST(res >= VK_SUCCESS); - vmaDefragmentationEnd(g_hAllocator, defragCtx); + res = vmaEndDefragmentation(g_hAllocator, defragCtx, &defragStats); + TEST(res == VK_SUCCESS); TEST(defragStats.allocationsMoved == 0 && defragStats.bytesFreed == 0 && defragStats.bytesMoved == 0 && defragStats.deviceMemoryBlocksFreed == 0); } @@ -1440,7 +1713,7 @@ void TestDefragmentationSimple() // persistentlyMappedOption = 0 - not persistently mapped. // persistentlyMappedOption = 1 - persistently mapped. - for(uint32_t persistentlyMappedOption = 0; persistentlyMappedOption < 2; ++persistentlyMappedOption) + for (uint32_t persistentlyMappedOption = 0; persistentlyMappedOption < 2; ++persistentlyMappedOption) { wprintf(L" Persistently mapped option = %u\n", persistentlyMappedOption); const bool persistentlyMapped = persistentlyMappedOption != 0; @@ -1450,26 +1723,28 @@ void TestDefragmentationSimple() // Fill 2 blocks. Remove odd buffers. Defragment everything. // Expected result: at least 1 block freed. { - for(size_t i = 0; i < BLOCK_SIZE / BUF_SIZE * 2; ++i) + for (size_t i = 0; i < BLOCK_SIZE / BUF_SIZE * 2; ++i) { AllocInfo allocInfo; - CreateBuffer(pool, bufCreateInfo, persistentlyMapped, allocInfo); + CreateBuffer(allocCreateInfo, bufCreateInfo, persistentlyMapped, allocInfo); allocations.push_back(allocInfo); } - for(size_t i = 1; i < allocations.size(); ++i) + for (size_t i = 1; i < allocations.size(); ++i) { DestroyAllocation(allocations[i]); allocations.erase(allocations.begin() + i); } + + // Set data for defragmentation retrieval + for (auto& alloc : allocations) + vmaSetAllocationUserData(g_hAllocator, alloc.m_Allocation, &alloc); VmaDefragmentationStats defragStats; - Defragment(allocations.data(), allocations.size(), nullptr, &defragStats); - TEST(defragStats.allocationsMoved > 0 && defragStats.bytesMoved > 0); - TEST(defragStats.deviceMemoryBlocksFreed >= 1); + Defragment(defragInfo, &defragStats); + TEST(defragStats.allocationsMoved == 4 && defragStats.bytesMoved == 4 * BUF_SIZE); ValidateAllocationsData(allocations.data(), allocations.size()); - DestroyAllAllocations(allocations); } @@ -1478,32 +1753,76 @@ void TestDefragmentationSimple() // Fill 2 blocks. Remove odd buffers. Defragment one buffer at time. // Expected result: Each of 4 interations makes some progress. { - for(size_t i = 0; i < BLOCK_SIZE / BUF_SIZE * 2; ++i) + for (size_t i = 0; i < BLOCK_SIZE / BUF_SIZE * 2; ++i) { AllocInfo allocInfo; - CreateBuffer(pool, bufCreateInfo, persistentlyMapped, allocInfo); + CreateBuffer(allocCreateInfo, bufCreateInfo, persistentlyMapped, allocInfo); allocations.push_back(allocInfo); } - for(size_t i = 1; i < allocations.size(); ++i) + for (size_t i = 1; i < allocations.size(); ++i) { DestroyAllocation(allocations[i]); allocations.erase(allocations.begin() + i); } - VmaDefragmentationInfo defragInfo = {}; - defragInfo.maxAllocationsToMove = 1; - defragInfo.maxBytesToMove = BUF_SIZE; + // Set data for defragmentation retrieval + for (auto& alloc : allocations) + vmaSetAllocationUserData(g_hAllocator, alloc.m_Allocation, &alloc); - for(size_t i = 0; i < BLOCK_SIZE / BUF_SIZE / 2; ++i) + defragInfo.maxAllocationsPerPass = 1; + defragInfo.maxBytesPerPass = BUF_SIZE; + + VmaDefragmentationContext defragCtx = nullptr; + VkResult res = vmaBeginDefragmentation(g_hAllocator, &defragInfo, &defragCtx); + TEST(res == VK_SUCCESS); + + for (size_t i = 0; i < BLOCK_SIZE / BUF_SIZE / 2; ++i) { - VmaDefragmentationStats defragStats; - Defragment(allocations.data(), allocations.size(), &defragInfo, &defragStats); - TEST(defragStats.allocationsMoved > 0 && defragStats.bytesMoved > 0); + VmaDefragmentationPassMoveInfo pass; + res = vmaBeginDefragmentationPass(g_hAllocator, defragCtx, &pass); + TEST(res == VK_INCOMPLETE); + + BeginSingleTimeCommands(); + ProcessDefragmentationPass(pass); + EndSingleTimeCommands(); + + // Destroy old buffers/images and replace them with new handles. + for (size_t i = 0; i < pass.moveCount; ++i) + { + VmaAllocation const alloc = pass.pMoves[i].srcAllocation; + VmaAllocationInfo vmaAllocInfo; + vmaGetAllocationInfo(g_hAllocator, alloc, &vmaAllocInfo); + AllocInfo* allocInfo = (AllocInfo*)vmaAllocInfo.pUserData; + + if (allocInfo->m_Buffer) + { + assert(allocInfo->m_NewBuffer && !allocInfo->m_Image && !allocInfo->m_NewImage); + vkDestroyBuffer(g_hDevice, allocInfo->m_Buffer, g_Allocs); + allocInfo->m_Buffer = allocInfo->m_NewBuffer; + allocInfo->m_NewBuffer = VK_NULL_HANDLE; + } + else if (allocInfo->m_Image) + { + assert(allocInfo->m_NewImage && !allocInfo->m_Buffer && !allocInfo->m_NewBuffer); + vkDestroyImage(g_hDevice, allocInfo->m_Image, g_Allocs); + allocInfo->m_Image = allocInfo->m_NewImage; + allocInfo->m_NewImage = VK_NULL_HANDLE; + } + else + assert(0); + } + + res = vmaEndDefragmentationPass(g_hAllocator, defragCtx, &pass); + TEST(res == VK_INCOMPLETE); } - ValidateAllocationsData(allocations.data(), allocations.size()); + VmaDefragmentationStats defragStats = {}; + res = vmaEndDefragmentation(g_hAllocator, defragCtx, &defragStats); + TEST(res == VK_SUCCESS); + TEST(defragStats.allocationsMoved == 4 && defragStats.bytesMoved == 4 * BUF_SIZE); + ValidateAllocationsData(allocations.data(), allocations.size()); DestroyAllAllocations(allocations); } @@ -1513,19 +1832,19 @@ void TestDefragmentationSimple() // Defragment while having some percent of them unmovable. // Expected result: Just simple validation. { - for(size_t i = 0; i < 100; ++i) + for (size_t i = 0; i < 100; ++i) { VkBufferCreateInfo localBufCreateInfo = bufCreateInfo; localBufCreateInfo.size = RandomBufSize(); AllocInfo allocInfo; - CreateBuffer(pool, bufCreateInfo, persistentlyMapped, allocInfo); + CreateBuffer(allocCreateInfo, localBufCreateInfo, persistentlyMapped, allocInfo); allocations.push_back(allocInfo); } const uint32_t percentToDelete = 60; const size_t numberToDelete = allocations.size() * percentToDelete / 100; - for(size_t i = 0; i < numberToDelete; ++i) + for (size_t i = 0; i < numberToDelete; ++i) { size_t indexToDelete = rand.Generate() % (uint32_t)allocations.size(); DestroyAllocation(allocations[indexToDelete]); @@ -1535,139 +1854,279 @@ void TestDefragmentationSimple() // Non-movable allocations will be at the beginning of allocations array. const uint32_t percentNonMovable = 20; const size_t numberNonMovable = allocations.size() * percentNonMovable / 100; - for(size_t i = 0; i < numberNonMovable; ++i) + for (size_t i = 0; i < numberNonMovable; ++i) { size_t indexNonMovable = i + rand.Generate() % (uint32_t)(allocations.size() - i); - if(indexNonMovable != i) + if (indexNonMovable != i) std::swap(allocations[i], allocations[indexNonMovable]); } + // Set data for defragmentation retrieval + for (auto& alloc : allocations) + vmaSetAllocationUserData(g_hAllocator, alloc.m_Allocation, &alloc); + + defragInfo.maxAllocationsPerPass = 0; + defragInfo.maxBytesPerPass = 0; + + VmaDefragmentationContext defragCtx = nullptr; + VkResult res = vmaBeginDefragmentation(g_hAllocator, &defragInfo, &defragCtx); + TEST(res == VK_SUCCESS); + + VmaDefragmentationPassMoveInfo pass; + while ((res = vmaBeginDefragmentationPass(g_hAllocator, defragCtx, &pass)) == VK_INCOMPLETE) + { + VmaDefragmentationMove* end = pass.pMoves + pass.moveCount; + for (uint32_t i = 0; i < numberNonMovable; ++i) + { + VmaDefragmentationMove* move = std::find_if(pass.pMoves, end, [&](VmaDefragmentationMove& move) { return move.srcAllocation == allocations[i].m_Allocation; }); + if (move != end) + move->operation = VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE; + } + + BeginSingleTimeCommands(); + ProcessDefragmentationPass(pass); + EndSingleTimeCommands(); + + // Destroy old buffers/images and replace them with new handles. + for (size_t i = 0; i < pass.moveCount; ++i) + { + if (pass.pMoves[i].operation != VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE) + { + VmaAllocation const alloc = pass.pMoves[i].srcAllocation; + VmaAllocationInfo vmaAllocInfo; + vmaGetAllocationInfo(g_hAllocator, alloc, &vmaAllocInfo); + AllocInfo* allocInfo = (AllocInfo*)vmaAllocInfo.pUserData; + + if (allocInfo->m_Buffer) + { + assert(allocInfo->m_NewBuffer && !allocInfo->m_Image && !allocInfo->m_NewImage); + vkDestroyBuffer(g_hDevice, allocInfo->m_Buffer, g_Allocs); + allocInfo->m_Buffer = allocInfo->m_NewBuffer; + allocInfo->m_NewBuffer = VK_NULL_HANDLE; + } + else + assert(0); + } + } + + if ((res = vmaEndDefragmentationPass(g_hAllocator, defragCtx, &pass)) == VK_SUCCESS) + break; + TEST(res == VK_INCOMPLETE); + } + TEST(res == VK_SUCCESS); + VmaDefragmentationStats defragStats; - Defragment( - allocations.data() + numberNonMovable, - allocations.size() - numberNonMovable, - nullptr, &defragStats); + res = vmaEndDefragmentation(g_hAllocator, defragCtx, &defragStats); + TEST(res == VK_SUCCESS); ValidateAllocationsData(allocations.data(), allocations.size()); - DestroyAllAllocations(allocations); } } - /* - Allocation that must be move to an overlapping place using memmove(). - Create 2 buffers, second slightly bigger than the first. Delete first. Then defragment. - */ - if(VMA_DEBUG_MARGIN == 0) // FAST algorithm works only when DEBUG_MARGIN disabled. - { - AllocInfo allocInfo[2]; - - bufCreateInfo.size = BUF_SIZE; - CreateBuffer(pool, bufCreateInfo, false, allocInfo[0]); - const VkDeviceSize biggerBufSize = BUF_SIZE + BUF_SIZE / 256; - bufCreateInfo.size = biggerBufSize; - CreateBuffer(pool, bufCreateInfo, false, allocInfo[1]); - - DestroyAllocation(allocInfo[0]); - - VmaDefragmentationStats defragStats; - Defragment(&allocInfo[1], 1, nullptr, &defragStats); - // If this fails, it means we couldn't do memmove with overlapping regions. - TEST(defragStats.allocationsMoved == 1 && defragStats.bytesMoved > 0); - - ValidateAllocationsData(&allocInfo[1], 1); - DestroyAllocation(allocInfo[1]); - } - vmaDestroyPool(g_hAllocator, pool); } -void TestDefragmentationWholePool() +void TestDefragmentationAlgorithms() { - wprintf(L"Test defragmentation whole pool\n"); + wprintf(L"Test defragmentation simple\n"); - RandomNumberGenerator rand(668); + RandomNumberGenerator rand(669); const VkDeviceSize BUF_SIZE = 0x10000; - const VkDeviceSize BLOCK_SIZE = BUF_SIZE * 8; - + const uint32_t TEX_SIZE = 256; + const VkDeviceSize BLOCK_SIZE = BUF_SIZE * 200 + TEX_SIZE * 200; + + const VkDeviceSize MIN_BUF_SIZE = 2048; + const VkDeviceSize MAX_BUF_SIZE = BUF_SIZE * 4; + auto RandomBufSize = [&]() -> VkDeviceSize + { + return align_up (rand.Generate() % (MAX_BUF_SIZE - MIN_BUF_SIZE + 1) + MIN_BUF_SIZE, 32); + }; + + const uint32_t MIN_TEX_SIZE = 512; + const uint32_t MAX_TEX_SIZE = TEX_SIZE * 4; + auto RandomTexSize = [&]() -> uint32_t + { + return align_up (rand.Generate() % (MAX_TEX_SIZE - MIN_TEX_SIZE + 1) + MIN_TEX_SIZE, 32); + }; + VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; bufCreateInfo.size = BUF_SIZE; - bufCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT; + bufCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; - VmaAllocationCreateInfo exampleAllocCreateInfo = {}; - exampleAllocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO; - exampleAllocCreateInfo.flags = VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT; + VkImageCreateInfo imageCreateInfo = { VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO }; + imageCreateInfo.imageType = VK_IMAGE_TYPE_2D; + imageCreateInfo.extent.depth = 1; + imageCreateInfo.mipLevels = 1; + imageCreateInfo.arrayLayers = 1; + imageCreateInfo.format = VK_FORMAT_R8_UNORM; + imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL; + imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_PREINITIALIZED; + imageCreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT; + imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT; + + VmaAllocationCreateInfo allocCreateInfo = {}; + allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO; + allocCreateInfo.flags = VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT; uint32_t memTypeIndex = UINT32_MAX; - vmaFindMemoryTypeIndexForBufferInfo(g_hAllocator, &bufCreateInfo, &exampleAllocCreateInfo, &memTypeIndex); + vmaFindMemoryTypeIndexForBufferInfo(g_hAllocator, &bufCreateInfo, &allocCreateInfo, &memTypeIndex); VmaPoolCreateInfo poolCreateInfo = {}; poolCreateInfo.blockSize = BLOCK_SIZE; poolCreateInfo.memoryTypeIndex = memTypeIndex; - VmaDefragmentationStats defragStats[2]; - for(size_t caseIndex = 0; caseIndex < 2; ++caseIndex) + VmaPool pool; + TEST(vmaCreatePool(g_hAllocator, &poolCreateInfo, &pool) == VK_SUCCESS); + allocCreateInfo.pool = pool; + + VmaDefragmentationInfo defragInfo = {}; + defragInfo.pool = pool; + + std::vector allocations; + + for (uint8_t i = 0; i < 4; ++i) { - VmaPool pool; - ERR_GUARD_VULKAN( vmaCreatePool(g_hAllocator, &poolCreateInfo, &pool) ); - - std::vector allocations; - - // Buffers of fixed size. - // Fill 2 blocks. Remove odd buffers. Defragment all of them. - for(size_t i = 0; i < BLOCK_SIZE / BUF_SIZE * 2; ++i) + switch (i) { - AllocInfo allocInfo; - CreateBuffer(pool, bufCreateInfo, false, allocInfo); - allocations.push_back(allocInfo); + case 0: + defragInfo.flags = VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT; + break; + case 1: + defragInfo.flags = VMA_DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED_BIT; + break; + case 2: + defragInfo.flags = VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT; + break; + case 3: + defragInfo.flags = VMA_DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT; + break; } + wprintf(L" Algorithm = %s\n", DefragmentationAlgorithmToStr(defragInfo.flags)); - for(size_t i = 1; i < allocations.size(); ++i) + // 0 - Without immovable allocations + // 1 - With immovable allocations + for (uint8_t j = 0; j < 2; ++j) { - DestroyAllocation(allocations[i]); - allocations.erase(allocations.begin() + i); + for (size_t i = 0; i < 400; ++i) + { + bufCreateInfo.size = RandomBufSize(); + + AllocInfo allocInfo; + CreateBuffer(allocCreateInfo, bufCreateInfo, false, allocInfo); + allocations.push_back(allocInfo); + } + for (size_t i = 0; i < 100; ++i) + { + imageCreateInfo.extent.width = RandomTexSize(); + imageCreateInfo.extent.height = RandomTexSize(); + + AllocInfo allocInfo; + CreateImage(allocCreateInfo, imageCreateInfo, VK_IMAGE_LAYOUT_GENERAL, false, allocInfo); + allocations.push_back(allocInfo); + } + + const uint32_t percentToDelete = 55; + const size_t numberToDelete = allocations.size() * percentToDelete / 100; + for (size_t i = 0; i < numberToDelete; ++i) + { + size_t indexToDelete = rand.Generate() % (uint32_t)allocations.size(); + DestroyAllocation(allocations[indexToDelete]); + allocations.erase(allocations.begin() + indexToDelete); + } + + // Non-movable allocations will be at the beginning of allocations array. + const uint32_t percentNonMovable = 20; + const size_t numberNonMovable = j == 0 ? 0 : (allocations.size() * percentNonMovable / 100); + for (size_t i = 0; i < numberNonMovable; ++i) + { + size_t indexNonMovable = i + rand.Generate() % (uint32_t)(allocations.size() - i); + if (indexNonMovable != i) + std::swap(allocations[i], allocations[indexNonMovable]); + } + + // Set data for defragmentation retrieval + for (auto& alloc : allocations) + vmaSetAllocationUserData(g_hAllocator, alloc.m_Allocation, &alloc); + + std::wstring output = DefragmentationAlgorithmToStr(defragInfo.flags); + if (j == 0) + output += L"_NoMove"; + else + output += L"_Move"; + SaveAllocatorStatsToFile((output + L"_Before.json").c_str()); + + VmaDefragmentationContext defragCtx = nullptr; + VkResult res = vmaBeginDefragmentation(g_hAllocator, &defragInfo, &defragCtx); + TEST(res == VK_SUCCESS); + + VmaDefragmentationPassMoveInfo pass; + while ((res = vmaBeginDefragmentationPass(g_hAllocator, defragCtx, &pass)) == VK_INCOMPLETE) + { + VmaDefragmentationMove* end = pass.pMoves + pass.moveCount; + for (uint32_t i = 0; i < numberNonMovable; ++i) + { + VmaDefragmentationMove* move = std::find_if(pass.pMoves, end, [&](VmaDefragmentationMove& move) { return move.srcAllocation == allocations[i].m_Allocation; }); + if (move != end) + move->operation = VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE; + } + for (uint32_t i = 0; i < pass.moveCount; ++i) + { + auto it = std::find_if(allocations.begin(), allocations.end(), [&](const AllocInfo& info) { return pass.pMoves[i].srcAllocation == info.m_Allocation; }); + assert(it != allocations.end()); + } + + BeginSingleTimeCommands(); + ProcessDefragmentationPass(pass); + EndSingleTimeCommands(); + + // Destroy old buffers/images and replace them with new handles. + for (size_t i = 0; i < pass.moveCount; ++i) + { + if (pass.pMoves[i].operation != VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE) + { + VmaAllocation const alloc = pass.pMoves[i].srcAllocation; + VmaAllocationInfo vmaAllocInfo; + vmaGetAllocationInfo(g_hAllocator, alloc, &vmaAllocInfo); + AllocInfo* allocInfo = (AllocInfo*)vmaAllocInfo.pUserData; + + if (allocInfo->m_Buffer) + { + assert(allocInfo->m_NewBuffer && !allocInfo->m_Image && !allocInfo->m_NewImage); + vkDestroyBuffer(g_hDevice, allocInfo->m_Buffer, g_Allocs); + allocInfo->m_Buffer = allocInfo->m_NewBuffer; + allocInfo->m_NewBuffer = VK_NULL_HANDLE; + } + else if (allocInfo->m_Image) + { + assert(allocInfo->m_NewImage && !allocInfo->m_Buffer && !allocInfo->m_NewBuffer); + vkDestroyImage(g_hDevice, allocInfo->m_Image, g_Allocs); + allocInfo->m_Image = allocInfo->m_NewImage; + allocInfo->m_NewImage = VK_NULL_HANDLE; + } + else + assert(0); + } + } + + if ((res = vmaEndDefragmentationPass(g_hAllocator, defragCtx, &pass)) == VK_SUCCESS) + break; + TEST(res == VK_INCOMPLETE); + } + TEST(res == VK_SUCCESS); + + VmaDefragmentationStats defragStats; + res = vmaEndDefragmentation(g_hAllocator, defragCtx, &defragStats); + TEST(res == VK_SUCCESS); + + SaveAllocatorStatsToFile((output + L"_After.json").c_str()); + ValidateAllocationsData(allocations.data(), allocations.size()); + DestroyAllAllocations(allocations); } - - VmaDefragmentationInfo2 defragInfo = {}; - defragInfo.maxCpuAllocationsToMove = UINT32_MAX; - defragInfo.maxCpuBytesToMove = VK_WHOLE_SIZE; - std::vector allocationsToDefrag; - if(caseIndex == 0) - { - defragInfo.poolCount = 1; - defragInfo.pPools = &pool; - } - else - { - const size_t allocCount = allocations.size(); - allocationsToDefrag.resize(allocCount); - std::transform( - allocations.begin(), allocations.end(), - allocationsToDefrag.begin(), - [](const AllocInfo& allocInfo) { return allocInfo.m_Allocation; }); - defragInfo.allocationCount = (uint32_t)allocCount; - defragInfo.pAllocations = allocationsToDefrag.data(); - } - - VmaDefragmentationContext defragCtx = VK_NULL_HANDLE; - VkResult res = vmaDefragmentationBegin(g_hAllocator, &defragInfo, &defragStats[caseIndex], &defragCtx); - TEST(res >= VK_SUCCESS); - vmaDefragmentationEnd(g_hAllocator, defragCtx); - - TEST(defragStats[caseIndex].allocationsMoved > 0 && defragStats[caseIndex].bytesMoved > 0); - - ValidateAllocationsData(allocations.data(), allocations.size()); - - DestroyAllAllocations(allocations); - - vmaDestroyPool(g_hAllocator, pool); } - TEST(defragStats[0].bytesMoved == defragStats[1].bytesMoved); - TEST(defragStats[0].allocationsMoved == defragStats[1].allocationsMoved); - TEST(defragStats[0].bytesFreed == defragStats[1].bytesFreed); - TEST(defragStats[0].deviceMemoryBlocksFreed == defragStats[1].deviceMemoryBlocksFreed); + vmaDestroyPool(g_hAllocator, pool); } void TestDefragmentationFull() @@ -1691,10 +2150,7 @@ void TestDefragmentationFull() DestroyAllocation(allocations[index]); allocations.erase(allocations.begin() + index); } - - for(size_t i = 0; i < allocations.size(); ++i) - ValidateAllocationData(allocations[i]); - + //ValidateAllocationsData(allocations.data(), allocations.size()); // Ultra-slow //SaveAllocatorStatsToFile(L"Before.csv"); { @@ -1710,22 +2166,24 @@ void TestDefragmentationFull() vmaAllocations.erase(vmaAllocations.begin() + index); } + // Set data for defragmentation retrieval + for (auto& alloc : allocations) + vmaSetAllocationUserData(g_hAllocator, alloc.m_Allocation, &alloc); + const uint32_t defragCount = 1; for(uint32_t defragIndex = 0; defragIndex < defragCount; ++defragIndex) { std::vector allocationsChanged(vmaAllocations.size()); - VmaDefragmentationInfo defragmentationInfo; - defragmentationInfo.maxAllocationsToMove = UINT_MAX; - defragmentationInfo.maxBytesToMove = SIZE_MAX; + VmaDefragmentationInfo defragmentationInfo = {}; + defragmentationInfo.flags = VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT; wprintf(L"Defragmentation #%u\n", defragIndex); time_point begTime = std::chrono::high_resolution_clock::now(); VmaDefragmentationStats stats; - VkResult res = vmaDefragment(g_hAllocator, vmaAllocations.data(), vmaAllocations.size(), allocationsChanged.data(), &defragmentationInfo, &stats); - TEST(res >= 0); + Defragment(defragmentationInfo, &stats); float defragmentDuration = ToFloatSeconds(std::chrono::high_resolution_clock::now() - begTime); @@ -1741,9 +2199,6 @@ void TestDefragmentationFull() } } - for(size_t i = 0; i < allocations.size(); ++i) - ValidateAllocationData(allocations[i]); - //wchar_t fileName[MAX_PATH]; //swprintf(fileName, MAX_PATH, L"After_%02u.csv", defragIndex); //SaveAllocatorStatsToFile(fileName); @@ -1751,6 +2206,7 @@ void TestDefragmentationFull() } // Destroy all remaining allocations. + //ValidateAllocationsData(allocations.data(), allocations.size()); // Ultra-slow DestroyAllAllocations(allocations); } @@ -1773,7 +2229,6 @@ static void TestDefragmentationGpu() VmaAllocationCreateInfo allocCreateInfo = {}; allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO_PREFER_DEVICE; - allocCreateInfo.flags = 0; // Create all intended buffers. for(size_t i = 0; i < bufCount; ++i) @@ -1814,6 +2269,10 @@ static void TestDefragmentationGpu() } } + // Set data for defragmentation retrieval + for (auto& alloc : allocations) + vmaSetAllocationUserData(g_hAllocator, alloc.m_Allocation, &alloc); + // Fill them with meaningful data. UploadGpuData(allocations.data(), allocations.size()); @@ -1843,25 +2302,9 @@ static void TestDefragmentationGpu() const size_t movableAllocCount = allocationPtrs.size(); - BeginSingleTimeCommands(); - - VmaDefragmentationInfo2 defragInfo = {}; - defragInfo.flags = 0; - defragInfo.allocationCount = (uint32_t)movableAllocCount; - defragInfo.pAllocations = allocationPtrs.data(); - defragInfo.pAllocationsChanged = allocationChanged.data(); - defragInfo.maxGpuBytesToMove = VK_WHOLE_SIZE; - defragInfo.maxGpuAllocationsToMove = UINT32_MAX; - defragInfo.commandBuffer = g_hTemporaryCommandBuffer; - - VmaDefragmentationStats stats = {}; - VmaDefragmentationContext ctx = VK_NULL_HANDLE; - VkResult res = vmaDefragmentationBegin(g_hAllocator, &defragInfo, &stats, &ctx); - TEST(res >= VK_SUCCESS); - - EndSingleTimeCommands(); - - vmaDefragmentationEnd(g_hAllocator, ctx); + VmaDefragmentationInfo defragInfo = {}; + VmaDefragmentationStats stats; + Defragment(defragInfo, &stats); for(size_t i = 0; i < movableAllocCount; ++i) { @@ -1880,10 +2323,9 @@ static void TestDefragmentationGpu() #endif } - ValidateGpuData(allocations.data(), allocations.size()); - swprintf_s(fileName, L"GPU_defragmentation_B_after.json"); SaveAllocatorStatsToFile(fileName); + ValidateGpuData(allocations.data(), allocations.size()); // Destroy all remaining buffers. for(size_t i = allocations.size(); i--; ) @@ -1892,187 +2334,6 @@ static void TestDefragmentationGpu() } } -static void ProcessDefragmentationStepInfo(VmaDefragmentationPassInfo &stepInfo) -{ - std::vector beginImageBarriers; - std::vector finalizeImageBarriers; - - VkPipelineStageFlags beginSrcStageMask = 0; - VkPipelineStageFlags beginDstStageMask = VK_PIPELINE_STAGE_TRANSFER_BIT; - - VkPipelineStageFlags finalizeSrcStageMask = VK_PIPELINE_STAGE_TRANSFER_BIT; - VkPipelineStageFlags finalizeDstStageMask = 0; - - bool wantsMemoryBarrier = false; - - VkMemoryBarrier beginMemoryBarrier = { VK_STRUCTURE_TYPE_MEMORY_BARRIER }; - VkMemoryBarrier finalizeMemoryBarrier = { VK_STRUCTURE_TYPE_MEMORY_BARRIER }; - - for(uint32_t i = 0; i < stepInfo.moveCount; ++i) - { - VmaAllocationInfo info; - vmaGetAllocationInfo(g_hAllocator, stepInfo.pMoves[i].allocation, &info); - - AllocInfo *allocInfo = (AllocInfo *)info.pUserData; - - if(allocInfo->m_Image) - { - VkImage newImage; - - const VkResult result = vkCreateImage(g_hDevice, &allocInfo->m_ImageInfo, g_Allocs, &newImage); - TEST(result >= VK_SUCCESS); - - vkBindImageMemory(g_hDevice, newImage, stepInfo.pMoves[i].memory, stepInfo.pMoves[i].offset); - allocInfo->m_NewImage = newImage; - - // Keep track of our pipeline stages that we need to wait/signal on - beginSrcStageMask |= VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT; - finalizeDstStageMask |= VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT; - - // We need one pipeline barrier and two image layout transitions here - // First we'll have to turn our newly created image into VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL - // And the second one is turning the old image into VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL - - VkImageSubresourceRange subresourceRange = { - VK_IMAGE_ASPECT_COLOR_BIT, - 0, VK_REMAINING_MIP_LEVELS, - 0, VK_REMAINING_ARRAY_LAYERS - }; - - VkImageMemoryBarrier barrier = { VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER }; - barrier.srcAccessMask = 0; - barrier.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT; - barrier.oldLayout = VK_IMAGE_LAYOUT_UNDEFINED; - barrier.newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL; - barrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; - barrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; - barrier.image = newImage; - barrier.subresourceRange = subresourceRange; - - beginImageBarriers.push_back(barrier); - - // Second barrier to convert the existing image. This one actually needs a real barrier - barrier.srcAccessMask = VK_ACCESS_MEMORY_WRITE_BIT; - barrier.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT; - barrier.oldLayout = allocInfo->m_ImageLayout; - barrier.newLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL; - barrier.image = allocInfo->m_Image; - - beginImageBarriers.push_back(barrier); - - // And lastly we need a barrier that turns our new image into the layout of the old one - barrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT; - barrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT; - barrier.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL; - barrier.newLayout = allocInfo->m_ImageLayout; - barrier.image = newImage; - - finalizeImageBarriers.push_back(barrier); - } - else if(allocInfo->m_Buffer) - { - VkBuffer newBuffer; - - const VkResult result = vkCreateBuffer(g_hDevice, &allocInfo->m_BufferInfo, g_Allocs, &newBuffer); - TEST(result >= VK_SUCCESS); - - vkBindBufferMemory(g_hDevice, newBuffer, stepInfo.pMoves[i].memory, stepInfo.pMoves[i].offset); - allocInfo->m_NewBuffer = newBuffer; - - // Keep track of our pipeline stages that we need to wait/signal on - beginSrcStageMask |= VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT; - finalizeDstStageMask |= VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT; - - beginMemoryBarrier.srcAccessMask |= VK_ACCESS_MEMORY_WRITE_BIT; - beginMemoryBarrier.dstAccessMask |= VK_ACCESS_TRANSFER_READ_BIT; - - finalizeMemoryBarrier.srcAccessMask |= VK_ACCESS_TRANSFER_WRITE_BIT; - finalizeMemoryBarrier.dstAccessMask |= VK_ACCESS_MEMORY_READ_BIT; - - wantsMemoryBarrier = true; - } - } - - if(!beginImageBarriers.empty() || wantsMemoryBarrier) - { - const uint32_t memoryBarrierCount = wantsMemoryBarrier ? 1 : 0; - - vkCmdPipelineBarrier(g_hTemporaryCommandBuffer, beginSrcStageMask, beginDstStageMask, 0, - memoryBarrierCount, &beginMemoryBarrier, - 0, nullptr, - (uint32_t)beginImageBarriers.size(), beginImageBarriers.data()); - } - - for(uint32_t i = 0; i < stepInfo.moveCount; ++ i) - { - VmaAllocationInfo info; - vmaGetAllocationInfo(g_hAllocator, stepInfo.pMoves[i].allocation, &info); - - AllocInfo *allocInfo = (AllocInfo *)info.pUserData; - - if(allocInfo->m_Image) - { - std::vector imageCopies; - - // Copy all mips of the source image into the target image - VkOffset3D offset = { 0, 0, 0 }; - VkExtent3D extent = allocInfo->m_ImageInfo.extent; - - VkImageSubresourceLayers subresourceLayers = { - VK_IMAGE_ASPECT_COLOR_BIT, - 0, - 0, 1 - }; - - for(uint32_t mip = 0; mip < allocInfo->m_ImageInfo.mipLevels; ++ mip) - { - subresourceLayers.mipLevel = mip; - - VkImageCopy imageCopy{ - subresourceLayers, - offset, - subresourceLayers, - offset, - extent - }; - - imageCopies.push_back(imageCopy); - - extent.width = std::max(uint32_t(1), extent.width >> 1); - extent.height = std::max(uint32_t(1), extent.height >> 1); - extent.depth = std::max(uint32_t(1), extent.depth >> 1); - } - - vkCmdCopyImage( - g_hTemporaryCommandBuffer, - allocInfo->m_Image, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, - allocInfo->m_NewImage, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, - (uint32_t)imageCopies.size(), imageCopies.data()); - } - else if(allocInfo->m_Buffer) - { - VkBufferCopy region = { - 0, - 0, - allocInfo->m_BufferInfo.size }; - - vkCmdCopyBuffer(g_hTemporaryCommandBuffer, - allocInfo->m_Buffer, allocInfo->m_NewBuffer, - 1, ®ion); - } - } - - if(!finalizeImageBarriers.empty() || wantsMemoryBarrier) - { - const uint32_t memoryBarrierCount = wantsMemoryBarrier ? 1 : 0; - - vkCmdPipelineBarrier(g_hTemporaryCommandBuffer, finalizeSrcStageMask, finalizeDstStageMask, 0, - memoryBarrierCount, &finalizeMemoryBarrier, - 0, nullptr, - (uint32_t)finalizeImageBarriers.size(), finalizeImageBarriers.data()); - } -} - static void TestDefragmentationIncrementalBasic() { wprintf(L"Test defragmentation incremental basic\n"); @@ -2102,7 +2363,6 @@ static void TestDefragmentationIncrementalBasic() VmaAllocationCreateInfo allocCreateInfo = {}; allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO_PREFER_DEVICE; - allocCreateInfo.flags = 0; // Create all intended images. for(size_t i = 0; i < imageCount; ++i) @@ -2113,7 +2373,7 @@ static void TestDefragmentationIncrementalBasic() imageInfo.extent.height = size; AllocInfo alloc; - alloc.CreateImage(imageInfo, allocCreateInfo, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL); + CreateImage(allocCreateInfo, imageInfo, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, false, alloc); alloc.m_StartValue = 0; allocations.push_back(alloc); @@ -2164,78 +2424,63 @@ static void TestDefragmentationIncrementalBasic() // Defragment using GPU only. { - const size_t allocCount = allocations.size(); - - std::vector allocationPtrs; - - for(size_t i = 0; i < allocCount; ++i) - { - allocationPtrs.push_back(allocations[i].m_Allocation); - } - - const size_t movableAllocCount = allocationPtrs.size(); - - VmaDefragmentationInfo2 defragInfo = {}; - defragInfo.flags = VMA_DEFRAGMENTATION_FLAG_INCREMENTAL; - defragInfo.allocationCount = (uint32_t)movableAllocCount; - defragInfo.pAllocations = allocationPtrs.data(); - defragInfo.maxGpuBytesToMove = VK_WHOLE_SIZE; - defragInfo.maxGpuAllocationsToMove = UINT32_MAX; - - VmaDefragmentationStats stats = {}; + VmaDefragmentationInfo defragInfo = {}; VmaDefragmentationContext ctx = VK_NULL_HANDLE; - VkResult res = vmaDefragmentationBegin(g_hAllocator, &defragInfo, &stats, &ctx); - TEST(res >= VK_SUCCESS); + VkResult res = vmaBeginDefragmentation(g_hAllocator, &defragInfo, &ctx); + TEST(res == VK_SUCCESS); - res = VK_NOT_READY; - - std::vector moveInfo; - moveInfo.resize(movableAllocCount); - - while(res == VK_NOT_READY) + VmaDefragmentationPassMoveInfo pass; + while ((res = vmaBeginDefragmentationPass(g_hAllocator, ctx, &pass)) == VK_INCOMPLETE) { - VmaDefragmentationPassInfo stepInfo = {}; - stepInfo.pMoves = moveInfo.data(); - stepInfo.moveCount = (uint32_t)moveInfo.size(); - - res = vmaBeginDefragmentationPass(g_hAllocator, ctx, &stepInfo); - TEST(res >= VK_SUCCESS); + // Ignore data outside of test + for (uint32_t i = 0; i < pass.moveCount; ++i) + { + auto it = std::find_if(allocations.begin(), allocations.end(), [&](const AllocInfo& info) { return pass.pMoves[i].srcAllocation == info.m_Allocation; }); + if (it == allocations.end()) + pass.pMoves[i].operation = VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE; + } BeginSingleTimeCommands(); - std::vector additionalAllocations; + additionalAllocations.reserve(maxAdditionalAllocations); #define MakeAdditionalAllocation() \ - do { \ - { \ - bufCreateInfo.size = align_up (bufSizeMin + rand.Generate() % (bufSizeMax - bufSizeMin), 16); \ - bufCreateInfo.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_TRANSFER_SRC_BIT; \ - \ - AllocInfo alloc; \ - alloc.CreateBuffer(bufCreateInfo, allocCreateInfo); \ - \ - additionalAllocations.push_back(alloc); \ - } \ - } while(0) + if (additionalAllocations.size() < maxAdditionalAllocations) \ + { \ + bufCreateInfo.size = align_up (bufSizeMin + rand.Generate() % (bufSizeMax - bufSizeMin), 16); \ + bufCreateInfo.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_TRANSFER_SRC_BIT; \ + \ + AllocInfo alloc; \ + alloc.CreateBuffer(bufCreateInfo, allocCreateInfo); \ + \ + additionalAllocations.push_back(alloc); \ + vmaSetAllocationUserData(g_hAllocator, alloc.m_Allocation, &additionalAllocations.back()); \ + } // Defragment using GPU only. { - const size_t allocCount = allocations.size(); + VmaDefragmentationInfo defragInfo = {}; + defragInfo.flags = VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT; - std::vector allocationPtrs; - - for(size_t i = 0; i < allocCount; ++i) - { - VmaAllocationInfo allocInfo = {}; - vmaGetAllocationInfo(g_hAllocator, allocations[i].m_Allocation, &allocInfo); - - allocationPtrs.push_back(allocations[i].m_Allocation); - } - - const size_t movableAllocCount = allocationPtrs.size(); - - VmaDefragmentationInfo2 defragInfo = {}; - defragInfo.flags = VMA_DEFRAGMENTATION_FLAG_INCREMENTAL; - defragInfo.allocationCount = (uint32_t)movableAllocCount; - defragInfo.pAllocations = allocationPtrs.data(); - defragInfo.maxGpuBytesToMove = VK_WHOLE_SIZE; - defragInfo.maxGpuAllocationsToMove = UINT32_MAX; - - VmaDefragmentationStats stats = {}; VmaDefragmentationContext ctx = VK_NULL_HANDLE; - VkResult res = vmaDefragmentationBegin(g_hAllocator, &defragInfo, &stats, &ctx); - TEST(res >= VK_SUCCESS); - - res = VK_NOT_READY; - - std::vector moveInfo; - moveInfo.resize(movableAllocCount); + VkResult res = vmaBeginDefragmentation(g_hAllocator, &defragInfo, &ctx); + TEST(res == VK_SUCCESS); MakeAdditionalAllocation(); - while(res == VK_NOT_READY) + VmaDefragmentationPassMoveInfo pass; + while((res = vmaBeginDefragmentationPass(g_hAllocator, ctx, &pass)) == VK_INCOMPLETE) { - VmaDefragmentationPassInfo stepInfo = {}; - stepInfo.pMoves = moveInfo.data(); - stepInfo.moveCount = (uint32_t)moveInfo.size(); + MakeAdditionalAllocation(); - res = vmaBeginDefragmentationPass(g_hAllocator, ctx, &stepInfo); - TEST(res >= VK_SUCCESS); + // Ignore data outside of test + for (uint32_t i = 0; i < pass.moveCount; ++i) + { + auto it = std::find_if(allocations.begin(), allocations.end(), [&](const AllocInfo& info) { return pass.pMoves[i].srcAllocation == info.m_Allocation; }); + if (it == allocations.end()) + { + auto it = std::find_if(additionalAllocations.begin(), additionalAllocations.end(), [&](const AllocInfo& info) { return pass.pMoves[i].srcAllocation == info.m_Allocation; }); + if (it == additionalAllocations.end()) + pass.pMoves[i].operation = VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE; + } + } + + BeginSingleTimeCommands(); + ProcessDefragmentationPass(pass); + EndSingleTimeCommands(); MakeAdditionalAllocation(); - BeginSingleTimeCommands(); - ProcessDefragmentationStepInfo(stepInfo); - EndSingleTimeCommands(); - - res = vmaEndDefragmentationPass(g_hAllocator, ctx); - // Destroy old buffers/images and replace them with new handles. - for(size_t i = 0; i < stepInfo.moveCount; ++i) + for (size_t i = 0; i < pass.moveCount; ++i) { - VmaAllocation const alloc = stepInfo.pMoves[i].allocation; - VmaAllocationInfo vmaAllocInfo; - vmaGetAllocationInfo(g_hAllocator, alloc, &vmaAllocInfo); - AllocInfo* allocInfo = (AllocInfo*)vmaAllocInfo.pUserData; - if(allocInfo->m_Buffer) + if (pass.pMoves[i].operation != VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE) { - assert(allocInfo->m_NewBuffer && !allocInfo->m_Image && !allocInfo->m_NewImage); - vkDestroyBuffer(g_hDevice, allocInfo->m_Buffer, g_Allocs); - allocInfo->m_Buffer = allocInfo->m_NewBuffer; - allocInfo->m_NewBuffer = VK_NULL_HANDLE; + VmaAllocation const alloc = pass.pMoves[i].srcAllocation; + VmaAllocationInfo vmaAllocInfo; + vmaGetAllocationInfo(g_hAllocator, alloc, &vmaAllocInfo); + AllocInfo* allocInfo = (AllocInfo*)vmaAllocInfo.pUserData; + + if (allocInfo->m_Buffer) + { + assert(allocInfo->m_NewBuffer && !allocInfo->m_Image && !allocInfo->m_NewImage); + vkDestroyBuffer(g_hDevice, allocInfo->m_Buffer, g_Allocs); + allocInfo->m_Buffer = allocInfo->m_NewBuffer; + allocInfo->m_NewBuffer = VK_NULL_HANDLE; + } + else if (allocInfo->m_Image) + { + assert(allocInfo->m_NewImage && !allocInfo->m_Buffer && !allocInfo->m_NewBuffer); + vkDestroyImage(g_hDevice, allocInfo->m_Image, g_Allocs); + allocInfo->m_Image = allocInfo->m_NewImage; + allocInfo->m_NewImage = VK_NULL_HANDLE; + } + else + assert(0); } - else if(allocInfo->m_Image) - { - assert(allocInfo->m_NewImage && !allocInfo->m_Buffer && !allocInfo->m_NewBuffer); - vkDestroyImage(g_hDevice, allocInfo->m_Image, g_Allocs); - allocInfo->m_Image = allocInfo->m_NewImage; - allocInfo->m_NewImage = VK_NULL_HANDLE; - } - else - assert(0); } + if ((res = vmaEndDefragmentationPass(g_hAllocator, ctx, &pass)) == VK_SUCCESS) + break; + TEST(res == VK_INCOMPLETE); + MakeAdditionalAllocation(); } - TEST(res >= VK_SUCCESS); - vmaDefragmentationEnd(g_hAllocator, ctx); + TEST(res == VK_SUCCESS); + VmaDefragmentationStats stats = {}; + vmaEndDefragmentation(g_hAllocator, ctx, &stats); // If corruption detection is enabled, GPU defragmentation may not work on // memory types that have this detection active, e.g. on Intel. @@ -2862,7 +3095,7 @@ static void TestVirtualBlocksAlgorithms() RandomNumberGenerator rand{3454335}; auto calcRandomAllocSize = [&rand]() -> VkDeviceSize { return rand.Generate() % 20 + 5; }; - for(size_t algorithmIndex = 0; algorithmIndex < 4; ++algorithmIndex) + for(size_t algorithmIndex = 0; algorithmIndex < 2; ++algorithmIndex) { // Create the block VmaVirtualBlockCreateInfo blockCreateInfo = {}; @@ -2871,8 +3104,6 @@ static void TestVirtualBlocksAlgorithms() switch(algorithmIndex) { case 1: blockCreateInfo.flags = VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT; break; - case 2: blockCreateInfo.flags = VMA_VIRTUAL_BLOCK_CREATE_BUDDY_ALGORITHM_BIT; break; - case 3: blockCreateInfo.flags = VMA_VIRTUAL_BLOCK_CREATE_TLSF_ALGORITHM_BIT; break; } VmaVirtualBlock block = nullptr; VkResult res = vmaCreateVirtualBlock(&blockCreateInfo, &block); @@ -3445,13 +3676,12 @@ static void TestDebugMargin() TEST(vmaFindMemoryTypeIndexForBufferInfo( g_hAllocator, &bufInfo, &allocCreateInfo, &poolCreateInfo.memoryTypeIndex) == VK_SUCCESS); - for(size_t algorithmIndex = 0; algorithmIndex < 3; ++algorithmIndex) + for(size_t algorithmIndex = 0; algorithmIndex < 2; ++algorithmIndex) { switch(algorithmIndex) { case 0: poolCreateInfo.flags = 0; break; - case 1: poolCreateInfo.flags = VMA_POOL_CREATE_TLSF_ALGORITHM_BIT; break; - case 2: poolCreateInfo.flags = VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT; break; + case 1: poolCreateInfo.flags = VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT; break; default: assert(0); } VmaPool pool = VK_NULL_HANDLE; @@ -3528,7 +3758,7 @@ static void TestDebugMarginNotInVirtualAllocator() { VmaVirtualBlockCreateInfo blockCreateInfo = {}; blockCreateInfo.size = ALLOCATION_COUNT * MEGABYTE; - blockCreateInfo.flags = (algorithm == 1 ? VMA_VIRTUAL_BLOCK_CREATE_TLSF_ALGORITHM_BIT : 0); + blockCreateInfo.flags = (algorithm == 1 ? VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT : 0); VmaVirtualBlock block = VK_NULL_HANDLE; TEST(vmaCreateVirtualBlock(&blockCreateInfo, &block) == VK_SUCCESS); @@ -4013,16 +4243,26 @@ static void TestAllocationAlgorithmsCorrectness() const VkDeviceSize sizeUnit = isVirtual == 2 ? 1 : 0x10000; const VkDeviceSize blockSize = (1llu << (LEVEL_COUNT - 1)) * sizeUnit; - for(uint32_t algorithmIndex = 0; algorithmIndex < 2; ++algorithmIndex) + for(uint32_t algorithmIndex = 0; algorithmIndex < 1; ++algorithmIndex) { VmaPool pool = VK_NULL_HANDLE; VmaVirtualBlock virtualBlock = VK_NULL_HANDLE; + uint32_t algorithm; + switch (algorithmIndex) + { + case 0: + algorithm = 0; + break; + default: + break; + } + if(isVirtual) { VmaVirtualBlockCreateInfo blockCreateInfo = {}; blockCreateInfo.pAllocationCallbacks = g_Allocs; - blockCreateInfo.flags = algorithmIndex ? VMA_VIRTUAL_BLOCK_CREATE_TLSF_ALGORITHM_BIT : 0; + blockCreateInfo.flags = algorithm; blockCreateInfo.size = blockSize; TEST(vmaCreateVirtualBlock(&blockCreateInfo, &virtualBlock) == VK_SUCCESS); } @@ -4030,7 +4270,7 @@ static void TestAllocationAlgorithmsCorrectness() { VmaPoolCreateInfo poolCreateInfo = {}; poolCreateInfo.blockSize = blockSize; - poolCreateInfo.flags = algorithmIndex ? VMA_POOL_CREATE_TLSF_ALGORITHM_BIT : 0; + poolCreateInfo.flags = algorithm; poolCreateInfo.minBlockCount = poolCreateInfo.maxBlockCount = 1; VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; @@ -4552,7 +4792,7 @@ static void BenchmarkAlgorithms(FILE* file) for(uint32_t emptyIndex = 0; emptyIndex < emptyCount; ++emptyIndex) { - for(uint32_t algorithmIndex = 0; algorithmIndex < 4; ++algorithmIndex) + for(uint32_t algorithmIndex = 0; algorithmIndex < 2; ++algorithmIndex) { uint32_t algorithm = 0; switch(algorithmIndex) @@ -4560,14 +4800,8 @@ static void BenchmarkAlgorithms(FILE* file) case 0: break; case 1: - algorithm = VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT; - break; - case 2: algorithm = VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT; break; - case 3: - algorithm = VMA_POOL_CREATE_TLSF_ALGORITHM_BIT; - break; default: assert(0); } @@ -4777,14 +5011,27 @@ static void TestPool_SameSize() // Defragment! { - std::vector allocationsToDefragment(items.size()); - for(size_t i = 0; i < items.size(); ++i) - allocationsToDefragment[i] = items[i].Alloc; + VmaDefragmentationInfo defragmentationInfo = {}; + defragmentationInfo.flags = VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT; + defragmentationInfo.pool = pool; + + VmaDefragmentationContext defragCtx = nullptr; + VkResult res = vmaBeginDefragmentation(g_hAllocator, &defragmentationInfo, &defragCtx); + TEST(res == VK_SUCCESS); + + VmaDefragmentationPassMoveInfo pass; + while ((res = vmaBeginDefragmentationPass(g_hAllocator, defragCtx, &pass)) == VK_INCOMPLETE) + { + if ((res = vmaEndDefragmentationPass(g_hAllocator, defragCtx, &pass)) == VK_SUCCESS) + break; + TEST(res == VK_INCOMPLETE); + } + TEST(res == VK_SUCCESS); VmaDefragmentationStats defragmentationStats; - res = vmaDefragment(g_hAllocator, allocationsToDefragment.data(), items.size(), nullptr, nullptr, &defragmentationStats); + res = vmaEndDefragmentation(g_hAllocator, defragCtx, &defragmentationStats); TEST(res == VK_SUCCESS); - TEST(defragmentationStats.deviceMemoryBlocksFreed == 2); + TEST(defragmentationStats.allocationsMoved == 24); } // Free all remaining items. @@ -6879,7 +7126,7 @@ static void BasicTestTLSF() VmaVirtualBlock block; VmaVirtualBlockCreateInfo blockInfo = {}; - blockInfo.flags = VMA_VIRTUAL_BLOCK_CREATE_TLSF_ALGORITHM_BIT; + blockInfo.flags = 0; blockInfo.size = 50331648; vmaCreateVirtualBlock(&blockInfo, &block); @@ -6904,6 +7151,7 @@ static void BasicTestTLSF() vmaDestroyVirtualBlock(block); } +#if 0 static void BasicTestBuddyAllocator() { wprintf(L"Basic test buddy allocator\n"); @@ -7007,6 +7255,7 @@ static void BasicTestBuddyAllocator() vmaDestroyPool(g_hAllocator, pool); } +#endif // #if 0 static void BasicTestAllocatePages() { @@ -7187,7 +7436,7 @@ static void TestVirtualBlocksAlgorithmsBenchmark() default: assert(0); } - for (uint8_t algorithmIndex = 0; algorithmIndex < 3; ++algorithmIndex) + for (uint8_t algorithmIndex = 0; algorithmIndex < 2; ++algorithmIndex) { switch (algorithmIndex) { @@ -7197,9 +7446,6 @@ static void TestVirtualBlocksAlgorithmsBenchmark() case 1: blockCreateInfo.flags = VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT; break; - case 2: - blockCreateInfo.flags = VMA_VIRTUAL_BLOCK_CREATE_TLSF_ALGORITHM_BIT; - break; default: assert(0); } @@ -7453,12 +7699,11 @@ void Test() TestAllocationAlgorithmsCorrectness(); BasicTestTLSF(); - BasicTestBuddyAllocator(); BasicTestAllocatePages(); - if(VK_KHR_buffer_device_address_enabled) + if (VK_KHR_buffer_device_address_enabled) TestBufferDeviceAddress(); - if(VK_EXT_memory_priority_enabled) + if (VK_EXT_memory_priority_enabled) TestMemoryPriority(); { @@ -7469,11 +7714,11 @@ void Test() fclose(file); } - if(ConfigType >= CONFIG_TYPE_AVERAGE) + if (ConfigType >= CONFIG_TYPE_AVERAGE) { TestDefragmentationSimple(); + TestDefragmentationAlgorithms(); TestDefragmentationFull(); - TestDefragmentationWholePool(); TestDefragmentationGpu(); TestDefragmentationIncrementalBasic(); TestDefragmentationIncrementalComplex();
- s -
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- i -
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@@ -125,10 +123,13 @@ Typedefs | |
| Flags to be passed as VmaPoolCreateInfo::flags. See VmaPoolCreateFlagBits. More... | |
| typedef enum VmaDefragmentationFlagBits | VmaDefragmentationFlagBits |
| Flags to be used in vmaDefragmentationBegin(). None at the moment. Reserved for future use. More... | |
| Flags to be passed as VmaDefragmentationInfo::flags. More... | |
| typedef VkFlags | VmaDefragmentationFlags |
| typedef enum VmaDefragmentationMoveOperation | VmaDefragmentationMoveOperation |
| Operation performed on single defragmentation move. More... | |
| typedef struct VmaAllocationCreateInfo | VmaAllocationCreateInfo |
| typedef struct VmaPoolCreateInfo | VmaPoolCreateInfo |
| typedef struct VmaAllocationInfo | VmaAllocationInfo |
| Parameters of VmaAllocation objects, that can be retrieved using function vmaGetAllocationInfo(). More... | |
| typedef struct VmaDefragmentationInfo2 | VmaDefragmentationInfo2 |
| Parameters for defragmentation. More... | |
| typedef struct VmaDefragmentationPassMoveInfo | VmaDefragmentationPassMoveInfo |
| typedef struct VmaDefragmentationPassInfo | VmaDefragmentationPassInfo |
| Parameters for incremental defragmentation steps. More... | |
| typedef struct VmaDefragmentationInfo | VmaDefragmentationInfo |
| Deprecated. Optional configuration parameters to be passed to function vmaDefragment(). More... | |
| Parameters for defragmentation. More... | |
| typedef struct VmaDefragmentationMove | VmaDefragmentationMove |
| Single move of an allocation to be done for defragmentation. More... | |
| typedef struct VmaDefragmentationPassMoveInfo | VmaDefragmentationPassMoveInfo |
| Parameters for incremental defragmentation steps. More... | |
| typedef struct VmaDefragmentationStats | VmaDefragmentationStats |
| Statistics returned by function vmaDefragment(). More... | |
| Statistics returned for defragmentation process in function vmaEndDefragmentation(). More... | |
Functions | |
| VkResult | vmaCheckCorruption (VmaAllocator allocator, uint32_t memoryTypeBits) |
| Checks magic number in margins around all allocations in given memory types (in both default and custom pools) in search for corruptions. More... | |
| VkResult | vmaDefragmentationBegin (VmaAllocator allocator, const VmaDefragmentationInfo2 *pInfo, VmaDefragmentationStats *pStats, VmaDefragmentationContext *pContext) |
| Begins defragmentation process. More... | |
| VkResult | vmaDefragmentationEnd (VmaAllocator allocator, VmaDefragmentationContext context) |
| Ends defragmentation process. More... | |
| VkResult | vmaBeginDefragmentationPass (VmaAllocator allocator, VmaDefragmentationContext context, VmaDefragmentationPassInfo *pInfo) |
| VkResult | vmaEndDefragmentationPass (VmaAllocator allocator, VmaDefragmentationContext context) |
| VkResult | vmaDefragment (VmaAllocator allocator, const VmaAllocation *pAllocations, size_t allocationCount, VkBool32 *pAllocationsChanged, const VmaDefragmentationInfo *pDefragmentationInfo, VmaDefragmentationStats *pDefragmentationStats) |
| Deprecated. Compacts memory by moving allocations. More... | |
| VkResult | vmaBeginDefragmentation (VmaAllocator allocator, const VmaDefragmentationInfo *pInfo, VmaDefragmentationContext *pContext) |
| Begins defragmentation process. More... | |
| VkResult | vmaEndDefragmentation (VmaAllocator allocator, VmaDefragmentationContext context, VmaDefragmentationStats *pStats) |
| Ends defragmentation process. More... | |
| VkResult | vmaBeginDefragmentationPass (VmaAllocator allocator, VmaDefragmentationContext context, VmaDefragmentationPassMoveInfo *pPassInfo) |
| Starts single defragmentation pass. More... | |
| VkResult | vmaEndDefragmentationPass (VmaAllocator allocator, VmaDefragmentationContext context, VmaDefragmentationPassMoveInfo *pPassInfo) |
| Ends single defragmentation pass. More... | |
| VkResult | vmaBindBufferMemory (VmaAllocator allocator, VmaAllocation allocation, VkBuffer buffer) |
| Binds buffer to allocation. More... | |
-
@@ -436,42 +443,40 @@ Functions
Flags to be used in vmaDefragmentationBegin(). None at the moment. Reserved for future use.
+Flags to be passed as VmaDefragmentationInfo::flags.
-
-
-
-Deprecated. Optional configuration parameters to be passed to function vmaDefragment().
-◆ VmaDefragmentationInfo2
- -
-
-
-
-
-
-
| typedef struct VmaDefragmentationInfo2 VmaDefragmentationInfo2 | -
-
Parameters for defragmentation.
-To be used with function vmaDefragmentationBegin().
+To be used with function vmaBeginDefragmentation().
◆ VmaDefragmentationPassInfo
+ +◆ VmaDefragmentationMove
| typedef struct VmaDefragmentationPassInfo VmaDefragmentationPassInfo | +typedef struct VmaDefragmentationMove VmaDefragmentationMove |
-
+Parameters for incremental defragmentation steps.
-To be used with function vmaBeginDefragmentationPass().
+Single move of an allocation to be done for defragmentation.
+ +◆ VmaDefragmentationMoveOperation
+ +
+
@@ -487,6 +492,9 @@ Functions
+
+
+
| typedef enum VmaDefragmentationMoveOperation VmaDefragmentationMoveOperation | +
+
+
Operation performed on single defragmentation move.
+
@@ -501,7 +509,7 @@ Functions
Parameters for incremental defragmentation steps.
+To be used with function vmaBeginDefragmentationPass().
+
-
@@ -596,9 +604,9 @@ Functions
Statistics returned by function vmaDefragment().
+Statistics returned for defragmentation process in function vmaEndDefragmentation().
Pointer to mapped memory will be returned through VmaAllocationInfo::pMappedData.
It is valid to use this flag for allocation made from memory type that is not HOST_VISIBLE. This flag is then ignored and memory is not mapped. This is useful if you need an allocation that is efficient to use on GPU (DEVICE_LOCAL) and still want to map it directly if possible on platforms that support it (e.g. Intel GPU).
Set this flag to treat VmaAllocationCreateInfo::pUserData as pointer to a null-terminated string. Instead of copying pointer value, a local copy of the string is made and stored in allocation's pUserData. The string is automatically freed together with the allocation. It is also used in vmaBuildStatsString().
Allocation strategy that chooses first suitable free range for the allocation - not necessarily in terms of the smallest offset but the one that is easiest and fastest to find to minimize allocation time, possibly at the expense of allocation quality.
Allocation strategy that chooses always the lowest offset in available space. This is not the most efficient strategy but achieves highly packed data. Used internally by defragmentation, not recomended in typical usage.
+
-
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+
+
+Flags to be used in vmaDefragmentationBegin(). None at the moment. Reserved for future use.
+Flags to be passed as VmaDefragmentationInfo::flags.
| Enumerator | |
|---|---|
| VMA_DEFRAGMENTATION_FLAG_INCREMENTAL | |
| Enumerator | |
| VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT | |
| VMA_DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED_BIT | |
| VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT | |
| VMA_DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT | Use the most roboust algorithm at the cost of time to compute and number of copies to make. Only available when bufferImageGranularity is greater than 1, since it aims to reduce alignment issues between different types of resources. Otherwise falls back to same behavior as VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT. + |
| VMA_DEFRAGMENTATION_FLAG_ALGORITHM_MASK | A bit mask to extract only |
| VMA_DEFRAGMENTATION_FLAG_BITS_MAX_ENUM | |
◆ VmaDefragmentationMoveOperation
+ +
+
@@ -681,15 +721,15 @@ Functions
+
+
+
| enum VmaDefragmentationMoveOperation | +
+
+
+
+
Operation performed on single defragmentation move.
+| Enumerator | |
|---|---|
| VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY | Buffer/image has been recreated at |
| VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE | Set this value if you cannot move the allocation. New place reserved |
| VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY | Set this value if you decide to abandon the allocation and you destroyed the buffer/image. New place reserved |
| Enumerator | |||||
|---|---|---|---|---|---|
| VMA_MEMORY_USAGE_UNKNOWN | No intended memory usage specified. Use other members of VmaAllocationCreateInfo to specify your requirements. | ||||
| VMA_MEMORY_USAGE_GPU_ONLY | |||||
| VMA_MEMORY_USAGE_GPU_ONLY | |||||
| VMA_MEMORY_USAGE_CPU_ONLY | |||||
| VMA_MEMORY_USAGE_CPU_ONLY | |||||
| VMA_MEMORY_USAGE_CPU_TO_GPU | |||||
| VMA_MEMORY_USAGE_CPU_TO_GPU | |||||
| VMA_MEMORY_USAGE_GPU_TO_CPU | |||||
| VMA_MEMORY_USAGE_GPU_TO_CPU | |||||
| VMA_MEMORY_USAGE_CPU_COPY | |||||
| VMA_MEMORY_USAGE_CPU_COPY | |||||
| VMA_MEMORY_USAGE_GPU_LAZILY_ALLOCATED | Lazily allocated GPU memory having Usage: Memory for transient attachment images (color attachments, depth attachments etc.), created with | ||||
| VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT | Enables alternative, buddy allocation algorithm in this pool. -It operates on a tree of blocks, each having size that is a power of two and a half of its parent's size. Comparing to default algorithm, this one provides faster allocation and deallocation and decreased external fragmentation, at the expense of more memory wasted (internal fragmentation). For details, see documentation chapter Buddy allocation algorithm. - | ||||
| VMA_POOL_CREATE_TLSF_ALGORITHM_BIT | Enables alternative, Two-Level Segregated Fit (TLSF) allocation algorithm in this pool. -This algorithm is based on 2-level lists dividing address space into smaller chunks. The first level is aligned to power of two which serves as buckets for requested memory to fall into, and the second level is lineary subdivided into lists of free memory. This algorithm aims to achieve bounded response time even in the worst case scenario. Allocation time can be sometimes slightly longer than compared to other algorithms but in return the application can avoid stalls in case of fragmentation, giving predictable results, suitable for real-time use cases. - | ||||
| VMA_POOL_CREATE_ALGORITHM_MASK | Bit mask to extract only | ||||
| VMA_POOL_CREATE_FLAG_BITS_MAX_ENUM | |||||
| VkResult vmaBeginDefragmentation | +( | +VmaAllocator | +allocator, | +
| + | + | const VmaDefragmentationInfo * | +pInfo, | +
| + | + | VmaDefragmentationContext * | +pContext | +
| + | ) | ++ |
+
+
+Begins defragmentation process.
+For more information about defragmentation, see documentation chapter: Defragmentation.
+ +◆ vmaBeginDefragmentationPass()
@@ -1003,8 +1082,8 @@ Functions
VmaDefragmentationPassInfo *
- pInfo
+ VmaDefragmentationPassMoveInfo *
+ pPassInfo
+
@@ -1525,176 +1619,6 @@ Functions
-
-
-
-Starts single defragmentation pass.
+◆ vmaDefragment()
- -
-
-
-
-
-
-
| VkResult vmaDefragment | -( | -VmaAllocator | -allocator, | -
| - | - | const VmaAllocation * | -pAllocations, | -
| - | - | size_t | -allocationCount, | -
| - | - | VkBool32 * | -pAllocationsChanged, | -
| - | - | const VmaDefragmentationInfo * | -pDefragmentationInfo, | -
| - | - | VmaDefragmentationStats * | -pDefragmentationStats | -
| - | ) | -- |
-
-
-Deprecated. Compacts memory by moving allocations.
-This function works by moving allocations to different places (different VkDeviceMemory objects and/or different offsets) in order to optimize memory usage. Only allocations that are in pAllocations array can be moved. All other allocations are considered nonmovable in this call. Basic rules:
-
-
The function also frees empty VkDeviceMemory blocks.
Warning: This function may be time-consuming, so you shouldn't call it too often (like after every resource creation/destruction). You can call it on special occasions (like when reloading a game level or when you just destroyed a lot of objects). Calling it every frame may be OK, but you should measure that on your platform.
-For more information, see Defragmentation chapter.
- -◆ vmaDefragmentationBegin()
- -
-
-
-
-
-
-
| VkResult vmaDefragmentationBegin | -( | -VmaAllocator | -allocator, | -
| - | - | const VmaDefragmentationInfo2 * | -pInfo, | -
| - | - | VmaDefragmentationStats * | -pStats, | -
| - | - | VmaDefragmentationContext * | -pContext | -
| - | ) | -- |
-
-
-Begins defragmentation process.
-Use this function instead of old, deprecated vmaDefragment().
-Warning! Between the call to vmaDefragmentationBegin() and vmaDefragmentationEnd():
--
-
For more information and important limitations regarding defragmentation, see documentation chapter: Defragmentation.
- -◆ vmaDefragmentationEnd()
- -
-
@@ -1808,8 +1732,53 @@ Functions
-
-
-
-
-
| VkResult vmaDefragmentationEnd | -( | -VmaAllocator | -allocator, | -
| - | - | VmaDefragmentationContext | -context | -
| - | ) | -- |
-
-
Ends defragmentation process.
-Use this function to finish defragmentation started by vmaDefragmentationBegin(). It is safe to pass context == null. The function then does nothing.
◆ vmaEndDefragmentationPass()
+ +◆ vmaEndDefragmentation()
+ +
+
+
+
+
+
+
| VkResult vmaEndDefragmentation | +( | +VmaAllocator | +allocator, | +
| + | + | VmaDefragmentationContext | +context, | +
| + | + | VmaDefragmentationStats * | +pStats | +
| + | ) | ++ |
+
+
+Ends defragmentation process.
+Use this function to finish defragmentation started by vmaBeginDefragmentation().
+ +◆ vmaEndDefragmentationPass()
@@ -1824,7 +1793,13 @@ Functions
VmaDefragmentationContext
- context
+ context,
+
+
+ VmaDefragmentationPassMoveInfo *
+ pPassInfo
+
Ends single defragmentation pass.
+Returns VK_SUCCESS if no more moves are possible or VK_INCOMPLETE if more defragmentations are possible.
Ends incremental defragmentation pass and commits all defragmentation moves from pPassInfo. After this call:
-
+
If no more moves are possible you can end whole defragmentation.
+Enumerations | |
| enum | VmaVirtualBlockCreateFlagBits { - VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT = 0x00000001 -, VMA_VIRTUAL_BLOCK_CREATE_BUDDY_ALGORITHM_BIT = 0x00000002 -, VMA_VIRTUAL_BLOCK_CREATE_TLSF_ALGORITHM_BIT = 0x00000004 + |
| enum | VmaVirtualBlockCreateFlagBits { VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT = 0x00000001
, VMA_VIRTUAL_BLOCK_CREATE_ALGORITHM_MASK
-, - VMA_VIRTUAL_BLOCK_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF - +, VMA_VIRTUAL_BLOCK_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF } |
| Flags to be passed as VmaVirtualBlockCreateInfo::flags. More... | |
| Flags to be passed as VmaVirtualAllocationCreateInfo::flags. More... | |
| VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT | Allocation strategy that tries to minimize allocation time. |
| VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_PACKED_BIT | Allocation strategy that chooses always the lowest offset in available space. This is not the most efficient strategy but achieves highly packed data. + |
| VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MASK | A bit mask to extract only These strategy flags are binary compatible with equivalent flags in VmaAllocationCreateFlagBits. |
| VMA_VIRTUAL_BLOCK_CREATE_BUDDY_ALGORITHM_BIT | Enables alternative, buddy allocation algorithm in this virtual block. -It operates on a tree of blocks, each having size that is a power of two and a half of its parent's size. Comparing to default algorithm, this one provides faster allocation and deallocation and decreased external fragmentation, at the expense of more memory wasted (internal fragmentation). For details, see documentation chapter Buddy allocation algorithm. - |
| VMA_VIRTUAL_BLOCK_CREATE_TLSF_ALGORITHM_BIT | Enables alternative, TLSF allocation algorithm in virtual block. -This algorithm is based on 2-level lists dividing address space into smaller chunks. The first level is aligned to power of two which serves as buckets for requested memory to fall into, and the second level is lineary subdivided into lists of free memory. This algorithm aims to achieve bounded response time even in the worst case scenario. Allocation time can be sometimes slightly longer than compared to other algorithms but in return the application can avoid stalls in case of fragmentation, giving predictable results, suitable for real-time use cases. - |
| VMA_VIRTUAL_BLOCK_CREATE_ALGORITHM_MASK | Bit mask to extract only |
| VMA_VIRTUAL_BLOCK_CREATE_FLAG_BITS_MAX_ENUM | |