VulkanMemoryAllocator-0.10.3.1: Bindings to the VulkanMemoryAllocator library
Safe HaskellSafe-Inferred
LanguageHaskell2010

VulkanMemoryAllocator

Synopsis

Documentation

createAllocator :: forall io. MonadIO io => AllocatorCreateInfo -> io Allocator Source #

Creates Allocator object.

withAllocator :: forall io r. MonadIO io => AllocatorCreateInfo -> (io Allocator -> (Allocator -> io ()) -> r) -> r Source #

A convenience wrapper to make a compatible pair of calls to createAllocator and destroyAllocator

To ensure that destroyAllocator is always called: pass bracket (or the allocate function from your favourite resource management library) as the last argument. To just extract the pair pass (,) as the last argument.

destroyAllocator :: forall io. MonadIO io => Allocator -> io () Source #

Destroys allocator object.

getAllocatorInfo :: forall io. MonadIO io => Allocator -> io AllocatorInfo Source #

Returns information about existing Allocator object - handle to Vulkan device etc.

It might be useful if you want to keep just the Allocator handle and fetch other required handles to VkPhysicalDevice, VkDevice etc. every time using this function.

getPhysicalDeviceProperties :: forall io. MonadIO io => Allocator -> io (Ptr PhysicalDeviceProperties) Source #

PhysicalDeviceProperties are fetched from physicalDevice by the allocator. You can access it here, without fetching it again on your own.

getMemoryProperties :: forall io. MonadIO io => Allocator -> io (Ptr PhysicalDeviceMemoryProperties) Source #

PhysicalDeviceMemoryProperties are fetched from physicalDevice by the allocator. You can access it here, without fetching it again on your own.

getMemoryTypeProperties :: forall io. MonadIO io => Allocator -> ("memoryTypeIndex" ::: Word32) -> io MemoryPropertyFlags Source #

Given Memory Type Index, returns Property Flags of this memory type.

This is just a convenience function. Same information can be obtained using getMemoryProperties.

setCurrentFrameIndex :: forall io. MonadIO io => Allocator -> ("frameIndex" ::: Word32) -> io () Source #

Sets index of the current frame.

calculateStatistics :: forall io. MonadIO io => Allocator -> io ("stats" ::: TotalStatistics) Source #

Retrieves statistics from current state of the Allocator.

This function is called "calculate" not "get" because it has to traverse all internal data structures, so it may be quite slow. Use it for debugging purposes. For faster but more brief statistics suitable to be called every frame or every allocation, use getHeapBudgets.

Note that when using allocator from multiple threads, returned information may immediately become outdated.

getHeapBudgets :: forall io. MonadIO io => Allocator -> ("budgets" ::: Ptr Budget) -> io () Source #

Retrieves information about current memory usage and budget for all memory heaps.

Parameters

allocator
out pBudgets Must point to array with number of elements at least equal to number of memory heaps in physical device used.

This function is called "get" not "calculate" because it is very fast, suitable to be called every frame or every allocation. For more detailed statistics use calculateStatistics.

Note that when using allocator from multiple threads, returned information may immediately become outdated.

findMemoryTypeIndex :: forall io. MonadIO io => Allocator -> ("memoryTypeBits" ::: Word32) -> AllocationCreateInfo -> io ("memoryTypeIndex" ::: Word32) Source #

Helps to find memoryTypeIndex, given memoryTypeBits and AllocationCreateInfo.

This algorithm tries to find a memory type that:

  • Is allowed by memoryTypeBits.
  • Contains all the flags from pAllocationCreateInfo->requiredFlags.
  • Matches intended usage.
  • Has as many flags from pAllocationCreateInfo->preferredFlags as possible.

Returns

Returns VK_ERROR_FEATURE_NOT_PRESENT if not found. Receiving such result from this function or any other allocating function probably means that your device doesn't support any memory type with requested features for the specific type of resource you want to use it for. Please check parameters of your resource, like image layout (OPTIMAL versus LINEAR) or mip level count.

findMemoryTypeIndexForBufferInfo :: forall a io. (Extendss BufferCreateInfo a, PokeChain a, MonadIO io) => Allocator -> BufferCreateInfo a -> AllocationCreateInfo -> io ("memoryTypeIndex" ::: Word32) Source #

Helps to find memoryTypeIndex, given VkBufferCreateInfo and AllocationCreateInfo.

It can be useful e.g. to determine value to be used as VmaPoolCreateInfo::memoryTypeIndex. It internally creates a temporary, dummy buffer that never has memory bound.

findMemoryTypeIndexForImageInfo :: forall a io. (Extendss ImageCreateInfo a, PokeChain a, MonadIO io) => Allocator -> ImageCreateInfo a -> AllocationCreateInfo -> io ("memoryTypeIndex" ::: Word32) Source #

Helps to find memoryTypeIndex, given VkImageCreateInfo and AllocationCreateInfo.

It can be useful e.g. to determine value to be used as VmaPoolCreateInfo::memoryTypeIndex. It internally creates a temporary, dummy image that never has memory bound.

createPool :: forall io. MonadIO io => Allocator -> PoolCreateInfo -> io Pool Source #

Allocates Vulkan device memory and creates Pool object.

Parameters

allocatorAllocator object.
pCreateInfoParameters of pool to create.
outpPoolHandle to created pool.

withPool :: forall io r. MonadIO io => Allocator -> PoolCreateInfo -> (io Pool -> (Pool -> io ()) -> r) -> r Source #

A convenience wrapper to make a compatible pair of calls to createPool and destroyPool

To ensure that destroyPool is always called: pass bracket (or the allocate function from your favourite resource management library) as the last argument. To just extract the pair pass (,) as the last argument.

destroyPool :: forall io. MonadIO io => Allocator -> Pool -> io () Source #

Destroys Pool object and frees Vulkan device memory.

getPoolStatistics :: forall io. MonadIO io => Allocator -> Pool -> io ("poolStats" ::: Statistics) Source #

Retrieves statistics of existing Pool object.

Parameters

allocatorAllocator object.
poolPool object.
outpPoolStatsStatistics of specified pool.

calculatePoolStatistics :: forall io. MonadIO io => Allocator -> Pool -> io ("poolStats" ::: DetailedStatistics) Source #

Retrieves detailed statistics of existing Pool object.

Parameters

allocatorAllocator object.
poolPool object.
outpPoolStatsStatistics of specified pool.

checkPoolCorruption :: forall io. MonadIO io => Allocator -> Pool -> io () Source #

Checks magic number in margins around all allocations in given memory pool in search for corruptions.

Corruption detection is enabled only when VMA_DEBUG_DETECT_CORRUPTION macro is defined to nonzero, VMA_DEBUG_MARGIN is defined to nonzero and the pool is created in memory type that is HOST_VISIBLE and HOST_COHERENT. For more information, see Corruption detection.

Possible return values:

  • VK_ERROR_FEATURE_NOT_PRESENT - corruption detection is not enabled for specified pool.
  • VK_SUCCESS - corruption detection has been performed and succeeded.
  • VK_ERROR_UNKNOWN - corruption detection has been performed and found memory corruptions around one of the allocations. VMA_ASSERT is also fired in that case.
  • Other value: Error returned by Vulkan, e.g. memory mapping failure.

getPoolName :: forall io. MonadIO io => Allocator -> Pool -> io ("name" ::: Ptr CChar) Source #

Retrieves name of a custom pool.

After the call ppName is either null or points to an internally-owned null-terminated string containing name of the pool that was previously set. The pointer becomes invalid when the pool is destroyed or its name is changed using setPoolName.

setPoolName :: forall io. MonadIO io => Allocator -> Pool -> ("name" ::: Maybe ByteString) -> io () Source #

Sets name of a custom pool.

pName can be either null or pointer to a null-terminated string with new name for the pool. Function makes internal copy of the string, so it can be changed or freed immediately after this call.

allocateMemory :: forall io. MonadIO io => Allocator -> ("vkMemoryRequirements" ::: MemoryRequirements) -> AllocationCreateInfo -> io (Allocation, AllocationInfo) Source #

General purpose memory allocation.

Parameters

allocator
pVkMemoryRequirements
pCreateInfo
outpAllocationHandle to allocated memory.
out pAllocationInfo Optional. Information about allocated memory. It can be later fetched using function getAllocationInfo.

You should free the memory using freeMemory or freeMemoryPages.

It is recommended to use allocateMemoryForBuffer, allocateMemoryForImage, createBuffer, createImage instead whenever possible.

withMemory :: forall io r. MonadIO io => Allocator -> MemoryRequirements -> AllocationCreateInfo -> (io (Allocation, AllocationInfo) -> ((Allocation, AllocationInfo) -> io ()) -> r) -> r Source #

A convenience wrapper to make a compatible pair of calls to allocateMemory and freeMemory

To ensure that freeMemory is always called: pass bracket (or the allocate function from your favourite resource management library) as the last argument. To just extract the pair pass (,) as the last argument.

allocateMemoryPages :: forall io. MonadIO io => Allocator -> ("vkMemoryRequirements" ::: Vector MemoryRequirements) -> ("createInfo" ::: Vector AllocationCreateInfo) -> io ("allocations" ::: Vector Allocation, "allocationInfo" ::: Vector AllocationInfo) Source #

General purpose memory allocation for multiple allocation objects at once.

Parameters

allocatorAllocator object.
pVkMemoryRequirementsMemory requirements for each allocation.
pCreateInfoCreation parameters for each allocation.
allocationCountNumber of allocations to make.
out pAllocations Pointer to array that will be filled with handles to created allocations.
out pAllocationInfo Optional. Pointer to array that will be filled with parameters of created allocations.

You should free the memory using freeMemory or freeMemoryPages.

Word "pages" is just a suggestion to use this function to allocate pieces of memory needed for sparse binding. It is just a general purpose allocation function able to make multiple allocations at once. It may be internally optimized to be more efficient than calling allocateMemory allocationCount times.

All allocations are made using same parameters. All of them are created out of the same memory pool and type. If any allocation fails, all allocations already made within this function call are also freed, so that when returned result is not VK_SUCCESS, pAllocation array is always entirely filled with VK_NULL_HANDLE.

withMemoryPages :: forall io r. MonadIO io => Allocator -> Vector MemoryRequirements -> Vector AllocationCreateInfo -> (io (Vector Allocation, Vector AllocationInfo) -> ((Vector Allocation, Vector AllocationInfo) -> io ()) -> r) -> r Source #

A convenience wrapper to make a compatible pair of calls to allocateMemoryPages and freeMemoryPages

To ensure that freeMemoryPages is always called: pass bracket (or the allocate function from your favourite resource management library) as the last argument. To just extract the pair pass (,) as the last argument.

allocateMemoryForBuffer :: forall io. MonadIO io => Allocator -> Buffer -> AllocationCreateInfo -> io (Allocation, AllocationInfo) Source #

Allocates memory suitable for given VkBuffer.

Parameters

allocator
buffer
pCreateInfo
outpAllocationHandle to allocated memory.
out pAllocationInfo Optional. Information about allocated memory. It can be later fetched using function getAllocationInfo.

It only creates Allocation. To bind the memory to the buffer, use bindBufferMemory.

This is a special-purpose function. In most cases you should use createBuffer.

You must free the allocation using freeMemory when no longer needed.

withMemoryForBuffer :: forall io r. MonadIO io => Allocator -> Buffer -> AllocationCreateInfo -> (io (Allocation, AllocationInfo) -> ((Allocation, AllocationInfo) -> io ()) -> r) -> r Source #

A convenience wrapper to make a compatible pair of calls to allocateMemoryForBuffer and freeMemory

To ensure that freeMemory is always called: pass bracket (or the allocate function from your favourite resource management library) as the last argument. To just extract the pair pass (,) as the last argument.

allocateMemoryForImage :: forall io. MonadIO io => Allocator -> Image -> AllocationCreateInfo -> io (Allocation, AllocationInfo) Source #

Allocates memory suitable for given VkImage.

Parameters

allocator
image
pCreateInfo
outpAllocationHandle to allocated memory.
out pAllocationInfo Optional. Information about allocated memory. It can be later fetched using function getAllocationInfo.

It only creates Allocation. To bind the memory to the buffer, use bindImageMemory.

This is a special-purpose function. In most cases you should use createImage.

You must free the allocation using freeMemory when no longer needed.

withMemoryForImage :: forall io r. MonadIO io => Allocator -> Image -> AllocationCreateInfo -> (io (Allocation, AllocationInfo) -> ((Allocation, AllocationInfo) -> io ()) -> r) -> r Source #

A convenience wrapper to make a compatible pair of calls to allocateMemoryForImage and freeMemory

To ensure that freeMemory is always called: pass bracket (or the allocate function from your favourite resource management library) as the last argument. To just extract the pair pass (,) as the last argument.

freeMemory :: forall io. MonadIO io => Allocator -> Allocation -> io () Source #

Frees memory previously allocated using allocateMemory, allocateMemoryForBuffer, or allocateMemoryForImage.

Passing VK_NULL_HANDLE as allocation is valid. Such function call is just skipped.

freeMemoryPages :: forall io. MonadIO io => Allocator -> ("allocations" ::: Vector Allocation) -> io () Source #

Frees memory and destroys multiple allocations.

Word "pages" is just a suggestion to use this function to free pieces of memory used for sparse binding. It is just a general purpose function to free memory and destroy allocations made using e.g. allocateMemory, allocateMemoryPages and other functions. It may be internally optimized to be more efficient than calling freeMemory allocationCount times.

Allocations in pAllocations array can come from any memory pools and types. Passing VK_NULL_HANDLE as elements of pAllocations array is valid. Such entries are just skipped.

getAllocationInfo :: forall io. MonadIO io => Allocator -> Allocation -> io AllocationInfo Source #

Returns current information about specified allocation.

Current parameters of given allocation are returned in pAllocationInfo.

Although this function doesn't lock any mutex, so it should be quite efficient, you should avoid calling it too often. You can retrieve same AllocationInfo structure while creating your resource, from function createBuffer, createImage. You can remember it if you are sure parameters don't change (e.g. due to defragmentation).

setAllocationUserData :: forall io. MonadIO io => Allocator -> Allocation -> ("userData" ::: Ptr ()) -> io () Source #

Sets pUserData in given allocation to new value.

The value of pointer pUserData is copied to allocation's pUserData. It is opaque, so you can use it however you want - e.g. as a pointer, ordinal number or some handle to you own data.

setAllocationName :: forall io. MonadIO io => Allocator -> Allocation -> ("name" ::: Maybe ByteString) -> io () Source #

Sets pName in given allocation to new value.

pName must be either null, or pointer to a null-terminated string. The function makes local copy of the string and sets it as allocation's pName. String passed as pName doesn't need to be valid for whole lifetime of the allocation - you can free it after this call. String previously pointed by allocation's pName is freed from memory.

getAllocationMemoryProperties :: forall io. MonadIO io => Allocator -> Allocation -> io MemoryPropertyFlags Source #

Given an allocation, returns Property Flags of its memory type.

This is just a convenience function. Same information can be obtained using getAllocationInfo + getMemoryProperties.

mapMemory :: forall io. MonadIO io => Allocator -> Allocation -> io ("data" ::: Ptr ()) Source #

Maps memory represented by given allocation and returns pointer to it.

Maps memory represented by given allocation to make it accessible to CPU code. When succeeded, *ppData contains pointer to first byte of this memory.

Warning

If the allocation is part of a bigger VkDeviceMemory block, returned pointer is correctly offsetted to the beginning of region assigned to this particular allocation. Unlike the result of vkMapMemory, it points to the allocation, not to the beginning of the whole block. You should not add VmaAllocationInfo::offset to it!

Mapping is internally reference-counted and synchronized, so despite raw Vulkan function vkMapMemory() cannot be used to map same block of VkDeviceMemory multiple times simultaneously, it is safe to call this function on allocations assigned to the same memory block. Actual Vulkan memory will be mapped on first mapping and unmapped on last unmapping.

If the function succeeded, you must call unmapMemory to unmap the allocation when mapping is no longer needed or before freeing the allocation, at the latest.

It also safe to call this function multiple times on the same allocation. You must call unmapMemory same number of times as you called mapMemory.

It is also safe to call this function on allocation created with ALLOCATION_CREATE_MAPPED_BIT flag. Its memory stays mapped all the time. You must still call unmapMemory same number of times as you called mapMemory. You must not call unmapMemory additional time to free the "0-th" mapping made automatically due to ALLOCATION_CREATE_MAPPED_BIT flag.

This function fails when used on allocation made in memory type that is not HOST_VISIBLE.

This function doesn't automatically flush or invalidate caches. If the allocation is made from a memory types that is not HOST_COHERENT, you also need to use invalidateAllocation / flushAllocation, as required by Vulkan specification.

withMappedMemory :: forall io r. MonadIO io => Allocator -> Allocation -> (io (Ptr ()) -> (Ptr () -> io ()) -> r) -> r Source #

A convenience wrapper to make a compatible pair of calls to mapMemory and unmapMemory

To ensure that unmapMemory is always called: pass bracket (or the allocate function from your favourite resource management library) as the last argument. To just extract the pair pass (,) as the last argument.

unmapMemory :: forall io. MonadIO io => Allocator -> Allocation -> io () Source #

Unmaps memory represented by given allocation, mapped previously using mapMemory.

For details, see description of mapMemory.

This function doesn't automatically flush or invalidate caches. If the allocation is made from a memory types that is not HOST_COHERENT, you also need to use invalidateAllocation / flushAllocation, as required by Vulkan specification.

flushAllocation :: forall io. MonadIO io => Allocator -> Allocation -> ("offset" ::: DeviceSize) -> DeviceSize -> io () Source #

Flushes memory of given allocation.

Calls vkFlushMappedMemoryRanges() for memory associated with given range of given allocation. It needs to be called after writing to a mapped memory for memory types that are not HOST_COHERENT. Unmap operation doesn't do that automatically.

  • offset must be relative to the beginning of allocation.
  • size can be VK_WHOLE_SIZE. It means all memory from offset the the end of given allocation.
  • offset and size don't have to be aligned. They are internally rounded down/up to multiply of nonCoherentAtomSize.
  • If size is 0, this call is ignored.
  • If memory type that the allocation belongs to is not HOST_VISIBLE or it is HOST_COHERENT, this call is ignored.

Warning! offset and size are relative to the contents of given allocation. If you mean whole allocation, you can pass 0 and VK_WHOLE_SIZE, respectively. Do not pass allocation's offset as offset!!!

This function returns the VkResult from vkFlushMappedMemoryRanges if it is called, otherwise VK_SUCCESS.

invalidateAllocation :: forall io. MonadIO io => Allocator -> Allocation -> ("offset" ::: DeviceSize) -> DeviceSize -> io () Source #

Invalidates memory of given allocation.

Calls vkInvalidateMappedMemoryRanges() for memory associated with given range of given allocation. It needs to be called before reading from a mapped memory for memory types that are not HOST_COHERENT. Map operation doesn't do that automatically.

  • offset must be relative to the beginning of allocation.
  • size can be VK_WHOLE_SIZE. It means all memory from offset the the end of given allocation.
  • offset and size don't have to be aligned. They are internally rounded down/up to multiply of nonCoherentAtomSize.
  • If size is 0, this call is ignored.
  • If memory type that the allocation belongs to is not HOST_VISIBLE or it is HOST_COHERENT, this call is ignored.

Warning! offset and size are relative to the contents of given allocation. If you mean whole allocation, you can pass 0 and VK_WHOLE_SIZE, respectively. Do not pass allocation's offset as offset!!!

This function returns the VkResult from vkInvalidateMappedMemoryRanges if it is called, otherwise VK_SUCCESS.

flushAllocations :: forall io. MonadIO io => Allocator -> ("allocations" ::: Vector Allocation) -> ("offsets" ::: Vector DeviceSize) -> ("sizes" ::: Vector DeviceSize) -> io () Source #

Flushes memory of given set of allocations.

Calls vkFlushMappedMemoryRanges() for memory associated with given ranges of given allocations. For more information, see documentation of flushAllocation.

Parameters

allocator
allocationCount
allocations
offsets If not null, it must point to an array of offsets of regions to flush, relative to the beginning of respective allocations. Null means all ofsets are zero.
sizes If not null, it must point to an array of sizes of regions to flush in respective allocations. Null means VK_WHOLE_SIZE for all allocations.

This function returns the VkResult from vkFlushMappedMemoryRanges if it is called, otherwise VK_SUCCESS.

invalidateAllocations :: forall io. MonadIO io => Allocator -> ("allocations" ::: Vector Allocation) -> ("offsets" ::: Vector DeviceSize) -> ("sizes" ::: Vector DeviceSize) -> io () Source #

Invalidates memory of given set of allocations.

Calls vkInvalidateMappedMemoryRanges() for memory associated with given ranges of given allocations. For more information, see documentation of invalidateAllocation.

Parameters

allocator
allocationCount
allocations
offsets If not null, it must point to an array of offsets of regions to flush, relative to the beginning of respective allocations. Null means all ofsets are zero.
sizes If not null, it must point to an array of sizes of regions to flush in respective allocations. Null means VK_WHOLE_SIZE for all allocations.

This function returns the VkResult from vkInvalidateMappedMemoryRanges if it is called, otherwise VK_SUCCESS.

checkCorruption :: forall io. MonadIO io => Allocator -> ("memoryTypeBits" ::: Word32) -> io () Source #

Checks magic number in margins around all allocations in given memory types (in both default and custom pools) in search for corruptions.

Parameters

allocator
memoryTypeBits Bit mask, where each bit set means that a memory type with that index should be checked.

Corruption detection is enabled only when VMA_DEBUG_DETECT_CORRUPTION macro is defined to nonzero, VMA_DEBUG_MARGIN is defined to nonzero and only for memory types that are HOST_VISIBLE and HOST_COHERENT. For more information, see Corruption detection.

Possible return values:

  • VK_ERROR_FEATURE_NOT_PRESENT - corruption detection is not enabled for any of specified memory types.
  • VK_SUCCESS - corruption detection has been performed and succeeded.
  • VK_ERROR_UNKNOWN - corruption detection has been performed and found memory corruptions around one of the allocations. VMA_ASSERT is also fired in that case.
  • Other value: Error returned by Vulkan, e.g. memory mapping failure.

beginDefragmentation :: forall io. MonadIO io => Allocator -> DefragmentationInfo -> io DefragmentationContext Source #

Begins defragmentation process.

Parameters

allocatorAllocator object.
pInfo Structure filled with parameters of defragmentation.
out pContext Context object that must be passed to endDefragmentation to finish defragmentation.

Returns

  • VK_SUCCESS if defragmentation can begin.
  • VK_ERROR_FEATURE_NOT_PRESENT if defragmentation is not supported.

For more information about defragmentation, see documentation chapter: Defragmentation.

withDefragmentation :: forall io r. MonadIO io => Allocator -> DefragmentationInfo -> (io DefragmentationContext -> (DefragmentationContext -> io DefragmentationStats) -> r) -> r Source #

A convenience wrapper to make a compatible pair of calls to beginDefragmentation and endDefragmentation

To ensure that endDefragmentation is always called: pass bracket (or the allocate function from your favourite resource management library) as the last argument. To just extract the pair pass (,) as the last argument.

endDefragmentation :: forall io. MonadIO io => Allocator -> DefragmentationContext -> io DefragmentationStats Source #

Ends defragmentation process.

Parameters

allocatorAllocator object.
context Context object that has been created by beginDefragmentation.
out pStats Optional stats for the defragmentation. Can be null.

Use this function to finish defragmentation started by beginDefragmentation.

beginDefragmentationPass :: forall io. MonadIO io => Allocator -> DefragmentationContext -> io ("passInfo" ::: DefragmentationPassMoveInfo) Source #

Starts single defragmentation pass.

Parameters

allocatorAllocator object.
context Context object that has been created by beginDefragmentation.
outpPassInfoComputed information for current pass.

Returns

useDefragmentationPass :: forall io r. MonadIO io => Allocator -> DefragmentationContext -> (DefragmentationPassMoveInfo -> io r) -> io ("passInfo" ::: DefragmentationPassMoveInfo, r) Source #

This function will call the supplied action between calls to beginDefragmentationPass and endDefragmentationPass

Note that endDefragmentationPass is *not* called if an exception is thrown by the inner action.

endDefragmentationPass :: forall io. MonadIO io => Allocator -> DefragmentationContext -> io ("passInfo" ::: DefragmentationPassMoveInfo) Source #

Ends single defragmentation pass.

Parameters

allocatorAllocator object.
context Context object that has been created by beginDefragmentation.
pPassInfo Computed information for current pass filled by beginDefragmentationPass 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:

If no more moves are possible you can end whole defragmentation.

bindBufferMemory :: forall io. MonadIO io => Allocator -> Allocation -> Buffer -> io () Source #

Binds buffer to allocation.

Binds specified buffer to region of memory represented by specified allocation. Gets VkDeviceMemory handle and offset from the allocation. If you want to create a buffer, allocate memory for it and bind them together separately, you should use this function for binding instead of standard vkBindBufferMemory(), because it ensures proper synchronization so that when a VkDeviceMemory object is used by multiple allocations, calls to vkBind*Memory() or vkMapMemory() won't happen from multiple threads simultaneously (which is illegal in Vulkan).

It is recommended to use function createBuffer instead of this one.

bindBufferMemory2 :: forall io. MonadIO io => Allocator -> Allocation -> ("allocationLocalOffset" ::: DeviceSize) -> Buffer -> ("next" ::: Ptr ()) -> io () Source #

Binds buffer to allocation with additional parameters.

Parameters

allocator
allocation
allocationLocalOffset Additional offset to be added while binding, relative to the beginning of the allocation. Normally it should be 0.
buffer
pNext A chain of structures to be attached to VkBindBufferMemoryInfoKHR structure used internally. Normally it should be null.

This function is similar to bindBufferMemory, but it provides additional parameters.

If pNext is not null, Allocator object must have been created with ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT flag or with VmaAllocatorCreateInfo::vulkanApiVersion >= VK_API_VERSION_1_1. Otherwise the call fails.

bindImageMemory :: forall io. MonadIO io => Allocator -> Allocation -> Image -> io () Source #

Binds image to allocation.

Binds specified image to region of memory represented by specified allocation. Gets VkDeviceMemory handle and offset from the allocation. If you want to create an image, allocate memory for it and bind them together separately, you should use this function for binding instead of standard vkBindImageMemory(), because it ensures proper synchronization so that when a VkDeviceMemory object is used by multiple allocations, calls to vkBind*Memory() or vkMapMemory() won't happen from multiple threads simultaneously (which is illegal in Vulkan).

It is recommended to use function createImage instead of this one.

bindImageMemory2 :: forall io. MonadIO io => Allocator -> Allocation -> ("allocationLocalOffset" ::: DeviceSize) -> Image -> ("next" ::: Ptr ()) -> io () Source #

Binds image to allocation with additional parameters.

Parameters

allocator
allocation
allocationLocalOffset Additional offset to be added while binding, relative to the beginning of the allocation. Normally it should be 0.
image
pNext A chain of structures to be attached to VkBindImageMemoryInfoKHR structure used internally. Normally it should be null.

This function is similar to bindImageMemory, but it provides additional parameters.

If pNext is not null, Allocator object must have been created with ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT flag or with VmaAllocatorCreateInfo::vulkanApiVersion >= VK_API_VERSION_1_1. Otherwise the call fails.

createBuffer :: forall a io. (Extendss BufferCreateInfo a, PokeChain a, MonadIO io) => Allocator -> BufferCreateInfo a -> AllocationCreateInfo -> io (Buffer, Allocation, AllocationInfo) Source #

Creates a new VkBuffer, allocates and binds memory for it.

Parameters

allocator
pBufferCreateInfo
pAllocationCreateInfo
outpBufferBuffer that was created.
outpAllocationAllocation that was created.
out pAllocationInfo Optional. Information about allocated memory. It can be later fetched using function getAllocationInfo.

This function automatically:

  1. Creates buffer.
  2. Allocates appropriate memory for it.
  3. Binds the buffer with the memory.

If any of these operations fail, buffer and allocation are not created, returned value is negative error code, *pBuffer and *pAllocation are null.

If the function succeeded, you must destroy both buffer and allocation when you no longer need them using either convenience function destroyBuffer or separately, using vkDestroyBuffer() and freeMemory.

If ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT flag was used, VK_KHR_dedicated_allocation extension is used internally to query driver whether it requires or prefers the new buffer to have dedicated allocation. If yes, and if dedicated allocation is possible (ALLOCATION_CREATE_NEVER_ALLOCATE_BIT is not used), it creates dedicated allocation for this buffer, just like when using ALLOCATION_CREATE_DEDICATED_MEMORY_BIT.

Note

This function creates a new VkBuffer. Sub-allocation of parts of one large buffer, although recommended as a good practice, is out of scope of this library and could be implemented by the user as a higher-level logic on top of VMA.

withBuffer :: forall a io r. (Extendss BufferCreateInfo a, PokeChain a, MonadIO io) => Allocator -> BufferCreateInfo a -> AllocationCreateInfo -> (io (Buffer, Allocation, AllocationInfo) -> ((Buffer, Allocation, AllocationInfo) -> io ()) -> r) -> r Source #

A convenience wrapper to make a compatible pair of calls to createBuffer and destroyBuffer

To ensure that destroyBuffer is always called: pass bracket (or the allocate function from your favourite resource management library) as the last argument. To just extract the pair pass (,) as the last argument.

createBufferWithAlignment :: forall a io. (Extendss BufferCreateInfo a, PokeChain a, MonadIO io) => Allocator -> BufferCreateInfo a -> AllocationCreateInfo -> ("minAlignment" ::: DeviceSize) -> io (Buffer, Allocation, AllocationInfo) Source #

Creates a buffer with additional minimum alignment.

Similar to createBuffer but provides additional parameter minAlignment which allows to specify custom, minimum alignment to be used when placing the buffer inside a larger memory block, which may be needed e.g. for interop with OpenGL.

createAliasingBuffer :: forall a io. (Extendss BufferCreateInfo a, PokeChain a, MonadIO io) => Allocator -> Allocation -> BufferCreateInfo a -> io Buffer Source #

Creates a new VkBuffer, binds already created memory for it.

Parameters

allocator
allocation Allocation that provides memory to be used for binding new buffer to it.
pBufferCreateInfo
outpBufferBuffer that was created.

This function automatically:

  1. Creates buffer.
  2. Binds the buffer with the supplied memory.

If any of these operations fail, buffer is not created, returned value is negative error code and *pBuffer is null.

If the function succeeded, you must destroy the buffer when you no longer need it using vkDestroyBuffer(). If you want to also destroy the corresponding allocation you can use convenience function destroyBuffer.

Note

There is a new version of this function augmented with parameter allocationLocalOffset - see createAliasingBuffer2.

createAliasingBuffer2 :: forall a io. (Extendss BufferCreateInfo a, PokeChain a, MonadIO io) => Allocator -> Allocation -> ("allocationLocalOffset" ::: DeviceSize) -> BufferCreateInfo a -> io Buffer Source #

Creates a new VkBuffer, binds already created memory for it.

Parameters

allocator
allocation Allocation that provides memory to be used for binding new buffer to it.
allocationLocalOffset Additional offset to be added while binding, relative to the beginning of the allocation. Normally it should be 0.
pBufferCreateInfo
outpBufferBuffer that was created.

This function automatically:

  1. Creates buffer.
  2. Binds the buffer with the supplied memory.

If any of these operations fail, buffer is not created, returned value is negative error code and *pBuffer is null.

If the function succeeded, you must destroy the buffer when you no longer need it using vkDestroyBuffer(). If you want to also destroy the corresponding allocation you can use convenience function destroyBuffer.

Note

This is a new version of the function augmented with parameter allocationLocalOffset.

destroyBuffer :: forall io. MonadIO io => Allocator -> Buffer -> Allocation -> io () Source #

Destroys Vulkan buffer and frees allocated memory.

This is just a convenience function equivalent to:

vkDestroyBuffer(device, buffer, allocationCallbacks);
vmaFreeMemory(allocator, allocation);

It is safe to pass null as buffer and/or allocation.

withImage :: forall a io r. (Extendss ImageCreateInfo a, PokeChain a, MonadIO io) => Allocator -> ImageCreateInfo a -> AllocationCreateInfo -> (io (Image, Allocation, AllocationInfo) -> ((Image, Allocation, AllocationInfo) -> io ()) -> r) -> r Source #

A convenience wrapper to make a compatible pair of calls to createImage and destroyImage

To ensure that destroyImage is always called: pass bracket (or the allocate function from your favourite resource management library) as the last argument. To just extract the pair pass (,) as the last argument.

createAliasingImage :: forall a io. (Extendss ImageCreateInfo a, PokeChain a, MonadIO io) => Allocator -> Allocation -> ImageCreateInfo a -> io Image Source #

Function similar to createAliasingBuffer but for images.

createAliasingImage2 :: forall a io. (Extendss ImageCreateInfo a, PokeChain a, MonadIO io) => Allocator -> Allocation -> ("allocationLocalOffset" ::: DeviceSize) -> ImageCreateInfo a -> io Image Source #

Function similar to createAliasingBuffer2 but for images.

destroyImage :: forall io. MonadIO io => Allocator -> Image -> Allocation -> io () Source #

Destroys Vulkan image and frees allocated memory.

This is just a convenience function equivalent to:

vkDestroyImage(device, image, allocationCallbacks);
vmaFreeMemory(allocator, allocation);

It is safe to pass null as image and/or allocation.

createVirtualBlock :: forall io. MonadIO io => VirtualBlockCreateInfo -> io VirtualBlock Source #

Creates new VirtualBlock object.

Parameters

pCreateInfoParameters for creation.
out pVirtualBlock Returned virtual block object or VMA_NULL if creation failed.

withVirtualBlock :: forall io r. MonadIO io => VirtualBlockCreateInfo -> (io VirtualBlock -> (VirtualBlock -> io ()) -> r) -> r Source #

A convenience wrapper to make a compatible pair of calls to createVirtualBlock and destroyVirtualBlock

To ensure that destroyVirtualBlock is always called: pass bracket (or the allocate function from your favourite resource management library) as the last argument. To just extract the pair pass (,) as the last argument.

destroyVirtualBlock :: forall io. MonadIO io => VirtualBlock -> io () Source #

Destroys VirtualBlock object.

Please note that you should consciously handle virtual allocations that could remain unfreed in the block. You should either free them individually using virtualFree or call clearVirtualBlock if you are sure this is what you want. If you do neither, an assert is called.

If you keep pointers to some additional metadata associated with your virtual allocations in their pUserData, don't forget to free them.

isVirtualBlockEmpty :: forall io. MonadIO io => VirtualBlock -> io Bool Source #

Returns true of the VirtualBlock is empty - contains 0 virtual allocations and has all its space available for new allocations.

getVirtualAllocationInfo :: forall io. MonadIO io => VirtualBlock -> VirtualAllocation -> io ("virtualAllocInfo" ::: VirtualAllocationInfo) Source #

Returns information about a specific virtual allocation within a virtual block, like its size and pUserData pointer.

virtualAllocate :: forall io. MonadIO io => VirtualBlock -> VirtualAllocationCreateInfo -> io (VirtualAllocation, "offset" ::: DeviceSize) Source #

Allocates new virtual allocation inside given VirtualBlock.

If the allocation fails due to not enough free space available, VK_ERROR_OUT_OF_DEVICE_MEMORY is returned (despite the function doesn't ever allocate actual GPU memory). pAllocation is then set to VK_NULL_HANDLE and pOffset, if not null, it set to UINT64_MAX.

Parameters

virtualBlockVirtual block
pCreateInfoParameters for the allocation
outpAllocationReturned handle of the new allocation
out pOffset Returned offset of the new allocation. Optional, can be null.

withVirtualAllocation :: forall io r. MonadIO io => VirtualBlock -> VirtualAllocationCreateInfo -> (io (VirtualAllocation, DeviceSize) -> ((VirtualAllocation, DeviceSize) -> io ()) -> r) -> r Source #

A convenience wrapper to make a compatible pair of calls to virtualAllocate and virtualFree

To ensure that virtualFree is always called: pass bracket (or the allocate function from your favourite resource management library) as the last argument. To just extract the pair pass (,) as the last argument.

virtualFree :: forall io. MonadIO io => VirtualBlock -> VirtualAllocation -> io () Source #

Frees virtual allocation inside given VirtualBlock.

It is correct to call this function with allocation == VK_NULL_HANDLE - it does nothing.

clearVirtualBlock :: forall io. MonadIO io => VirtualBlock -> io () Source #

Frees all virtual allocations inside given VirtualBlock.

You must either call this function or free each virtual allocation individually with virtualFree before destroying a virtual block. Otherwise, an assert is called.

If you keep pointer to some additional metadata associated with your virtual allocation in its pUserData, don't forget to free it as well.

setVirtualAllocationUserData :: forall io. MonadIO io => VirtualBlock -> VirtualAllocation -> ("userData" ::: Ptr ()) -> io () Source #

Changes custom pointer associated with given virtual allocation.

getVirtualBlockStatistics :: forall io. MonadIO io => VirtualBlock -> io ("stats" ::: Statistics) Source #

Calculates and returns statistics about virtual allocations and memory usage in given VirtualBlock.

This function is fast to call. For more detailed statistics, see calculateVirtualBlockStatistics.

calculateVirtualBlockStatistics :: forall io. MonadIO io => VirtualBlock -> io ("stats" ::: DetailedStatistics) Source #

Calculates and returns detailed statistics about virtual allocations and memory usage in given VirtualBlock.

This function is slow to call. Use for debugging purposes. For less detailed statistics, see getVirtualBlockStatistics.

buildVirtualBlockStatsString :: forall io. MonadIO io => VirtualBlock -> ("detailedMap" ::: Bool) -> io ("statsString" ::: Ptr CChar) Source #

Builds and returns a null-terminated string in JSON format with information about given VirtualBlock.

Parameters

virtualBlockVirtual block.
outppStatsStringReturned string.
detailedMap Pass VK_FALSE to only obtain statistics as returned by calculateVirtualBlockStatistics. Pass VK_TRUE to also obtain full list of allocations and free spaces.

Returned string must be freed using freeVirtualBlockStatsString.

freeVirtualBlockStatsString :: forall io. MonadIO io => VirtualBlock -> ("statsString" ::: Ptr CChar) -> io () Source #

Frees a string returned by buildVirtualBlockStatsString.

buildStatsString :: forall io. MonadIO io => Allocator -> ("detailedMap" ::: Bool) -> io ("statsString" ::: Ptr CChar) Source #

Builds and returns statistics as a null-terminated string in JSON format.

Parameters

allocator
out ppStatsString Must be freed using freeStatsString function.
detailedMap

freeStatsString :: forall io. MonadIO io => Allocator -> ("statsString" ::: Ptr CChar) -> io () Source #

newtype AllocatorCreateFlagBits Source #

Flags for created Allocator.

Bundled Patterns

pattern ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT :: AllocatorCreateFlagBits

Allocator and all objects created from it will not be synchronized internally, so you must guarantee they are used from only one thread at a time or synchronized externally by you.

Using this flag may increase performance because internal mutexes are not used.

pattern ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT :: AllocatorCreateFlagBits

Enables usage of VK_KHR_dedicated_allocation extension.

The flag works only if VmaAllocatorCreateInfo::vulkanApiVersion == VK_API_VERSION_1_0. When it is VK_API_VERSION_1_1, the flag is ignored because the extension has been promoted to Vulkan 1.1.

Using this extension will automatically allocate dedicated blocks of memory for some buffers and images instead of suballocating place for them out of bigger memory blocks (as if you explicitly used ALLOCATION_CREATE_DEDICATED_MEMORY_BIT flag) when it is recommended by the driver. It may improve performance on some GPUs.

You may set this flag only if you found out that following device extensions are supported, you enabled them while creating Vulkan device passed as VmaAllocatorCreateInfo::device, and you want them to be used internally by this library:

  • VK_KHR_get_memory_requirements2 (device extension)
  • VK_KHR_dedicated_allocation (device extension)

When this flag is set, you can experience following warnings reported by Vulkan validation layer. You can ignore them.

‍vkBindBufferMemory(): Binding memory to buffer 0x2d but vkGetBufferMemoryRequirements() has not been called on that buffer.

pattern ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT :: AllocatorCreateFlagBits

Enables usage of VK_KHR_bind_memory2 extension.

The flag works only if VmaAllocatorCreateInfo::vulkanApiVersion == VK_API_VERSION_1_0. When it is VK_API_VERSION_1_1, the flag is ignored because the extension has been promoted to Vulkan 1.1.

You may set this flag only if you found out that this device extension is supported, you enabled it while creating Vulkan device passed as VmaAllocatorCreateInfo::device, and you want it to be used internally by this library.

The extension provides functions vkBindBufferMemory2KHR and vkBindImageMemory2KHR, which allow to pass a chain of pNext structures while binding. This flag is required if you use pNext parameter in bindBufferMemory2 or bindImageMemory2.

pattern ALLOCATOR_CREATE_EXT_MEMORY_BUDGET_BIT :: AllocatorCreateFlagBits

Enables usage of VK_EXT_memory_budget extension.

You may set this flag only if you found out that this device extension is supported, you enabled it while creating Vulkan device passed as VmaAllocatorCreateInfo::device, and you want it to be used internally by this library, along with another instance extension VK_KHR_get_physical_device_properties2, which is required by it (or Vulkan 1.1, where this extension is promoted).

The extension provides query for current memory usage and budget, which will probably be more accurate than an estimation used by the library otherwise.

pattern ALLOCATOR_CREATE_AMD_DEVICE_COHERENT_MEMORY_BIT :: AllocatorCreateFlagBits

Enables usage of VK_AMD_device_coherent_memory extension.

You may set this flag only if you:

  • found out that this device extension is supported and enabled it while creating Vulkan device passed as VmaAllocatorCreateInfo::device,
  • checked that VkPhysicalDeviceCoherentMemoryFeaturesAMD::deviceCoherentMemory is true and set it while creating the Vulkan device,
  • want it to be used internally by this library.

The extension and accompanying device feature provide access to memory types with VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD and VK_MEMORY_PROPERTY_DEVICE_UNCACHED_BIT_AMD flags. They are useful mostly for writing breadcrumb markers - a common method for debugging GPU crash/hang/TDR.

When the extension is not enabled, such memory types are still enumerated, but their usage is illegal. To protect from this error, if you don't create the allocator with this flag, it will refuse to allocate any memory or create a custom pool in such memory type, returning VK_ERROR_FEATURE_NOT_PRESENT.

pattern ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT :: AllocatorCreateFlagBits

Enables usage of "buffer device address" feature, which allows you to use function vkGetBufferDeviceAddress* to get raw GPU pointer to a buffer and pass it for usage inside a shader.

You may set this flag only if you:

  1. (For Vulkan version < 1.2) Found as available and enabled device extension VK_KHR_buffer_device_address. This extension is promoted to core Vulkan 1.2.
  2. Found as available and enabled device feature VkPhysicalDeviceBufferDeviceAddressFeatures::bufferDeviceAddress.

When this flag is set, you can create buffers with VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT using VMA. The library automatically adds VK_MEMORY_ALLOCATE_DEVICE_ADDRESS_BIT to allocated memory blocks wherever it might be needed.

For more information, see documentation chapter /Enabling buffer device address/.

pattern ALLOCATOR_CREATE_EXT_MEMORY_PRIORITY_BIT :: AllocatorCreateFlagBits

Enables usage of VK_EXT_memory_priority extension in the library.

You may set this flag only if you found available and enabled this device extension, along with VkPhysicalDeviceMemoryPriorityFeaturesEXT::memoryPriority == VK_TRUE, while creating Vulkan device passed as VmaAllocatorCreateInfo::device.

When this flag is used, VmaAllocationCreateInfo::priority and VmaPoolCreateInfo::priority are used to set priorities of allocated Vulkan memory. Without it, these variables are ignored.

A priority must be a floating-point value between 0 and 1, indicating the priority of the allocation relative to other memory allocations. Larger values are higher priority. The granularity of the priorities is implementation-dependent. It is automatically passed to every call to vkAllocateMemory done by the library using structure VkMemoryPriorityAllocateInfoEXT. The value to be used for default priority is 0.5. For more details, see the documentation of the VK_EXT_memory_priority extension.

Instances

Instances details
Bits AllocatorCreateFlagBits Source # 
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FiniteBits AllocatorCreateFlagBits Source # 
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Storable AllocatorCreateFlagBits Source # 
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Read AllocatorCreateFlagBits Source # 
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Show AllocatorCreateFlagBits Source # 
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Eq AllocatorCreateFlagBits Source # 
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Ord AllocatorCreateFlagBits Source # 
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Zero AllocatorCreateFlagBits Source # 
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newtype MemoryUsage Source #

Intended usage of the allocated memory.

Constructors

MemoryUsage Int32 

Bundled Patterns

pattern MEMORY_USAGE_UNKNOWN :: MemoryUsage

No intended memory usage specified. Use other members of AllocationCreateInfo to specify your requirements.

pattern MEMORY_USAGE_GPU_ONLY :: MemoryUsage

Deprecated

Obsolete, preserved for backward compatibility. Prefers VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT.

pattern MEMORY_USAGE_CPU_ONLY :: MemoryUsage

Deprecated

Obsolete, preserved for backward compatibility. Guarantees VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT and VK_MEMORY_PROPERTY_HOST_COHERENT_BIT.

pattern MEMORY_USAGE_CPU_TO_GPU :: MemoryUsage

Deprecated

Obsolete, preserved for backward compatibility. Guarantees VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, prefers VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT.

pattern MEMORY_USAGE_GPU_TO_CPU :: MemoryUsage

Deprecated

Obsolete, preserved for backward compatibility. Guarantees VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, prefers VK_MEMORY_PROPERTY_HOST_CACHED_BIT.

pattern MEMORY_USAGE_CPU_COPY :: MemoryUsage

Deprecated

Obsolete, preserved for backward compatibility. Prefers not VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT.

pattern MEMORY_USAGE_GPU_LAZILY_ALLOCATED :: MemoryUsage

Lazily allocated GPU memory having VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT. Exists mostly on mobile platforms. Using it on desktop PC or other GPUs with no such memory type present will fail the allocation.

Usage: Memory for transient attachment images (color attachments, depth attachments etc.), created with VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT.

Allocations with this usage are always created as dedicated - it implies ALLOCATION_CREATE_DEDICATED_MEMORY_BIT.

pattern MEMORY_USAGE_AUTO :: MemoryUsage

Selects best memory type automatically. This flag is recommended for most common use cases.

When using this flag, if you want to map the allocation (using mapMemory or ALLOCATION_CREATE_MAPPED_BIT), you must pass one of the flags: ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT or ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT in VmaAllocationCreateInfo::flags.

It can be used only with functions that let the library know VkBufferCreateInfo or VkImageCreateInfo, e.g. createBuffer, createImage, findMemoryTypeIndexForBufferInfo, findMemoryTypeIndexForImageInfo and not with generic memory allocation functions.

pattern MEMORY_USAGE_AUTO_PREFER_DEVICE :: MemoryUsage

Selects best memory type automatically with preference for GPU (device) memory.

When using this flag, if you want to map the allocation (using mapMemory or ALLOCATION_CREATE_MAPPED_BIT), you must pass one of the flags: ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT or ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT in VmaAllocationCreateInfo::flags.

It can be used only with functions that let the library know VkBufferCreateInfo or VkImageCreateInfo, e.g. createBuffer, createImage, findMemoryTypeIndexForBufferInfo, findMemoryTypeIndexForImageInfo and not with generic memory allocation functions.

pattern MEMORY_USAGE_AUTO_PREFER_HOST :: MemoryUsage

Selects best memory type automatically with preference for CPU (host) memory.

When using this flag, if you want to map the allocation (using mapMemory or ALLOCATION_CREATE_MAPPED_BIT), you must pass one of the flags: ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT or ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT in VmaAllocationCreateInfo::flags.

It can be used only with functions that let the library know VkBufferCreateInfo or VkImageCreateInfo, e.g. createBuffer, createImage, findMemoryTypeIndexForBufferInfo, findMemoryTypeIndexForImageInfo and not with generic memory allocation functions.

Instances

Instances details
Storable MemoryUsage Source # 
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Read MemoryUsage Source # 
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Show MemoryUsage Source # 
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Eq MemoryUsage Source # 
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Ord MemoryUsage Source # 
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Zero MemoryUsage Source # 
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Methods

zero :: MemoryUsage #

newtype AllocationCreateFlagBits Source #

Flags to be passed as VmaAllocationCreateInfo::flags.

Bundled Patterns

pattern ALLOCATION_CREATE_DEDICATED_MEMORY_BIT :: AllocationCreateFlagBits

Set this flag if the allocation should have its own memory block.

Use it for special, big resources, like fullscreen images used as attachments.

pattern ALLOCATION_CREATE_NEVER_ALLOCATE_BIT :: AllocationCreateFlagBits

Set this flag to only try to allocate from existing VkDeviceMemory blocks and never create new such block.

If new allocation cannot be placed in any of the existing blocks, allocation fails with VK_ERROR_OUT_OF_DEVICE_MEMORY error.

You should not use ALLOCATION_CREATE_DEDICATED_MEMORY_BIT and ALLOCATION_CREATE_NEVER_ALLOCATE_BIT at the same time. It makes no sense.

pattern ALLOCATION_CREATE_MAPPED_BIT :: AllocationCreateFlagBits

Set this flag to use a memory that will be persistently mapped and retrieve pointer to it.

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).

pattern ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT :: AllocationCreateFlagBits

Deprecated

Preserved for backward compatibility. Consider using setAllocationName instead.

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 pName. The string is automatically freed together with the allocation. It is also used in buildStatsString.

pattern ALLOCATION_CREATE_UPPER_ADDRESS_BIT :: AllocationCreateFlagBits

Allocation will be created from upper stack in a double stack pool.

This flag is only allowed for custom pools created with POOL_CREATE_LINEAR_ALGORITHM_BIT flag.

pattern ALLOCATION_CREATE_DONT_BIND_BIT :: AllocationCreateFlagBits

Create both buffer/image and allocation, but don't bind them together. It is useful when you want to bind yourself to do some more advanced binding, e.g. using some extensions. The flag is meaningful only with functions that bind by default: createBuffer, createImage. Otherwise it is ignored.

If you want to make sure the new buffer/image is not tied to the new memory allocation through VkMemoryDedicatedAllocateInfoKHR structure in case the allocation ends up in its own memory block, use also flag ALLOCATION_CREATE_CAN_ALIAS_BIT.

pattern ALLOCATION_CREATE_WITHIN_BUDGET_BIT :: AllocationCreateFlagBits

Create allocation only if additional device memory required for it, if any, won't exceed memory budget. Otherwise return VK_ERROR_OUT_OF_DEVICE_MEMORY.

pattern ALLOCATION_CREATE_CAN_ALIAS_BIT :: AllocationCreateFlagBits

Set this flag if the allocated memory will have aliasing resources.

Usage of this flag prevents supplying VkMemoryDedicatedAllocateInfoKHR when ALLOCATION_CREATE_DEDICATED_MEMORY_BIT is specified. Otherwise created dedicated memory will not be suitable for aliasing resources, resulting in Vulkan Validation Layer errors.

pattern ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT :: AllocationCreateFlagBits

Requests possibility to map the allocation (using mapMemory or ALLOCATION_CREATE_MAPPED_BIT).

  • If you use MEMORY_USAGE_AUTO or other VMA_MEMORY_USAGE_AUTO* value, you must use this flag to be able to map the allocation. Otherwise, mapping is incorrect.
  • If you use other value of MemoryUsage, this flag is ignored and mapping is always possible in memory types that are HOST_VISIBLE. This includes allocations created in Custom memory pools.

Declares that mapped memory will only be written sequentially, e.g. using memcpy() or a loop writing number-by-number, never read or accessed randomly, so a memory type can be selected that is uncached and write-combined.

Warning

Violating this declaration may work correctly, but will likely be very slow. Watch out for implicit reads introduced by doing e.g. pMappedData[i] += x; Better prepare your data in a local variable and memcpy() it to the mapped pointer all at once.

pattern ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT :: AllocationCreateFlagBits

Requests possibility to map the allocation (using mapMemory or ALLOCATION_CREATE_MAPPED_BIT).

  • If you use MEMORY_USAGE_AUTO or other VMA_MEMORY_USAGE_AUTO* value, you must use this flag to be able to map the allocation. Otherwise, mapping is incorrect.
  • If you use other value of MemoryUsage, this flag is ignored and mapping is always possible in memory types that are HOST_VISIBLE. This includes allocations created in Custom memory pools.

Declares that mapped memory can be read, written, and accessed in random order, so a HOST_CACHED memory type is required.

pattern ALLOCATION_CREATE_HOST_ACCESS_ALLOW_TRANSFER_INSTEAD_BIT :: AllocationCreateFlagBits

Together with ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT or ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT, it says that despite request for host access, a not-HOST_VISIBLE memory type can be selected if it may improve performance.

By using this flag, you declare that you will check if the allocation ended up in a HOST_VISIBLE memory type (e.g. using getAllocationMemoryProperties) and if not, you will create some "staging" buffer and issue an explicit transfer to write/read your data. To prepare for this possibility, don't forget to add appropriate flags like VK_BUFFER_USAGE_TRANSFER_DST_BIT, VK_BUFFER_USAGE_TRANSFER_SRC_BIT to the parameters of created buffer or image.

pattern ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT :: AllocationCreateFlagBits

Allocation strategy that chooses smallest possible free range for the allocation to minimize memory usage and fragmentation, possibly at the expense of allocation time.

pattern ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT :: AllocationCreateFlagBits

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.

pattern ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT :: AllocationCreateFlagBits

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 recommended in typical usage.

pattern ALLOCATION_CREATE_STRATEGY_BEST_FIT_BIT :: AllocationCreateFlagBits

Alias to ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT.

pattern ALLOCATION_CREATE_STRATEGY_FIRST_FIT_BIT :: AllocationCreateFlagBits

Alias to ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT.

pattern ALLOCATION_CREATE_STRATEGY_MASK :: AllocationCreateFlagBits

A bit mask to extract only STRATEGY bits from entire set of flags.

Instances

Instances details
Bits AllocationCreateFlagBits Source # 
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FiniteBits AllocationCreateFlagBits Source # 
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Storable AllocationCreateFlagBits Source # 
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Read AllocationCreateFlagBits Source # 
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Show AllocationCreateFlagBits Source # 
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Eq AllocationCreateFlagBits Source # 
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Ord AllocationCreateFlagBits Source # 
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Zero AllocationCreateFlagBits Source # 
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newtype PoolCreateFlagBits Source #

Flags to be passed as VmaPoolCreateInfo::flags.

Bundled Patterns

pattern POOL_CREATE_IGNORE_BUFFER_IMAGE_GRANULARITY_BIT :: PoolCreateFlagBits

Use this flag if you always allocate only buffers and linear images or only optimal images out of this pool and so Buffer-Image Granularity can be ignored.

This is an optional optimization flag.

If you always allocate using createBuffer, createImage, allocateMemoryForBuffer, then you don't need to use it because allocator knows exact type of your allocations so it can handle Buffer-Image Granularity in the optimal way.

If you also allocate using allocateMemoryForImage or allocateMemory, exact type of such allocations is not known, so allocator must be conservative in handling Buffer-Image Granularity, which can lead to suboptimal allocation (wasted memory). In that case, if you can make sure you always allocate only buffers and linear images or only optimal images out of this pool, use this flag to make allocator disregard Buffer-Image Granularity and so make allocations faster and more optimal.

pattern POOL_CREATE_LINEAR_ALGORITHM_BIT :: PoolCreateFlagBits

Enables alternative, linear allocation algorithm in this pool.

Specify this flag to enable linear allocation algorithm, which always creates new allocations after last one and doesn't reuse space from allocations freed in between. It trades memory consumption for simplified algorithm and data structure, which has better performance and uses less memory for metadata.

By using this flag, you can achieve behavior of free-at-once, stack, ring buffer, and double stack. For details, see documentation chapter Linear allocation algorithm.

pattern POOL_CREATE_ALGORITHM_MASK :: PoolCreateFlagBits

Bit mask to extract only ALGORITHM bits from entire set of flags.

Instances

Instances details
Bits PoolCreateFlagBits Source # 
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Defined in VulkanMemoryAllocator

FiniteBits PoolCreateFlagBits Source # 
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Storable PoolCreateFlagBits Source # 
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Defined in VulkanMemoryAllocator

Read PoolCreateFlagBits Source # 
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Show PoolCreateFlagBits Source # 
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Eq PoolCreateFlagBits Source # 
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Ord PoolCreateFlagBits Source # 
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Zero PoolCreateFlagBits Source # 
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newtype DefragmentationFlagBits Source #

Flags to be passed as VmaDefragmentationInfo::flags.

Bundled Patterns

pattern DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT :: DefragmentationFlagBits 
pattern DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED_BIT :: DefragmentationFlagBits 
pattern DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT :: DefragmentationFlagBits 
pattern DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT :: DefragmentationFlagBits

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 DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT.

pattern DEFRAGMENTATION_FLAG_ALGORITHM_MASK :: DefragmentationFlagBits

A bit mask to extract only ALGORITHM bits from entire set of flags.

Instances

Instances details
Bits DefragmentationFlagBits Source # 
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Defined in VulkanMemoryAllocator

FiniteBits DefragmentationFlagBits Source # 
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Defined in VulkanMemoryAllocator

Storable DefragmentationFlagBits Source # 
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Read DefragmentationFlagBits Source # 
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Show DefragmentationFlagBits Source # 
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Eq DefragmentationFlagBits Source # 
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Ord DefragmentationFlagBits Source # 
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Zero DefragmentationFlagBits Source # 
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newtype DefragmentationMoveOperation Source #

Operation performed on single defragmentation move. See structure DefragmentationMove.

Bundled Patterns

pattern DEFRAGMENTATION_MOVE_OPERATION_COPY :: DefragmentationMoveOperation

Buffer/image has been recreated at dstTmpAllocation, 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 beginDefragmentationPass.

pattern DEFRAGMENTATION_MOVE_OPERATION_IGNORE :: DefragmentationMoveOperation

Set this value if you cannot move the allocation. New place reserved at dstTmpAllocation will be freed. srcAllocation will remain unchanged.

pattern DEFRAGMENTATION_MOVE_OPERATION_DESTROY :: DefragmentationMoveOperation

Set this value if you decide to abandon the allocation and you destroyed the buffer/image. New place reserved at dstTmpAllocation will be freed, along with srcAllocation, which will be destroyed.

Instances

Instances details
Storable DefragmentationMoveOperation Source # 
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Read DefragmentationMoveOperation Source # 
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Show DefragmentationMoveOperation Source # 
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Eq DefragmentationMoveOperation Source # 
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Ord DefragmentationMoveOperation Source # 
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Zero DefragmentationMoveOperation Source # 
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newtype VirtualBlockCreateFlagBits Source #

Flags to be passed as VmaVirtualBlockCreateInfo::flags.

Bundled Patterns

pattern VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT :: VirtualBlockCreateFlagBits

Enables alternative, linear allocation algorithm in this virtual block.

Specify this flag to enable linear allocation algorithm, which always creates new allocations after last one and doesn't reuse space from allocations freed in between. It trades memory consumption for simplified algorithm and data structure, which has better performance and uses less memory for metadata.

By using this flag, you can achieve behavior of free-at-once, stack, ring buffer, and double stack. For details, see documentation chapter Linear allocation algorithm.

pattern VIRTUAL_BLOCK_CREATE_ALGORITHM_MASK :: VirtualBlockCreateFlagBits

Bit mask to extract only ALGORITHM bits from entire set of flags.

Instances

Instances details
Bits VirtualBlockCreateFlagBits Source # 
Instance details

Defined in VulkanMemoryAllocator

Methods

(.&.) :: VirtualBlockCreateFlagBits -> VirtualBlockCreateFlagBits -> VirtualBlockCreateFlagBits #

(.|.) :: VirtualBlockCreateFlagBits -> VirtualBlockCreateFlagBits -> VirtualBlockCreateFlagBits #

xor :: VirtualBlockCreateFlagBits -> VirtualBlockCreateFlagBits -> VirtualBlockCreateFlagBits #

complement :: VirtualBlockCreateFlagBits -> VirtualBlockCreateFlagBits #

shift :: VirtualBlockCreateFlagBits -> Int -> VirtualBlockCreateFlagBits #

rotate :: VirtualBlockCreateFlagBits -> Int -> VirtualBlockCreateFlagBits #

zeroBits :: VirtualBlockCreateFlagBits #

bit :: Int -> VirtualBlockCreateFlagBits #

setBit :: VirtualBlockCreateFlagBits -> Int -> VirtualBlockCreateFlagBits #

clearBit :: VirtualBlockCreateFlagBits -> Int -> VirtualBlockCreateFlagBits #

complementBit :: VirtualBlockCreateFlagBits -> Int -> VirtualBlockCreateFlagBits #

testBit :: VirtualBlockCreateFlagBits -> Int -> Bool #

bitSizeMaybe :: VirtualBlockCreateFlagBits -> Maybe Int #

bitSize :: VirtualBlockCreateFlagBits -> Int #

isSigned :: VirtualBlockCreateFlagBits -> Bool #

shiftL :: VirtualBlockCreateFlagBits -> Int -> VirtualBlockCreateFlagBits #

unsafeShiftL :: VirtualBlockCreateFlagBits -> Int -> VirtualBlockCreateFlagBits #

shiftR :: VirtualBlockCreateFlagBits -> Int -> VirtualBlockCreateFlagBits #

unsafeShiftR :: VirtualBlockCreateFlagBits -> Int -> VirtualBlockCreateFlagBits #

rotateL :: VirtualBlockCreateFlagBits -> Int -> VirtualBlockCreateFlagBits #

rotateR :: VirtualBlockCreateFlagBits -> Int -> VirtualBlockCreateFlagBits #

popCount :: VirtualBlockCreateFlagBits -> Int #

FiniteBits VirtualBlockCreateFlagBits Source # 
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Storable VirtualBlockCreateFlagBits Source # 
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Read VirtualBlockCreateFlagBits Source # 
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Show VirtualBlockCreateFlagBits Source # 
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Eq VirtualBlockCreateFlagBits Source # 
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Ord VirtualBlockCreateFlagBits Source # 
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Zero VirtualBlockCreateFlagBits Source # 
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newtype VirtualAllocationCreateFlagBits Source #

Flags to be passed as VmaVirtualAllocationCreateInfo::flags.

Bundled Patterns

pattern VIRTUAL_ALLOCATION_CREATE_UPPER_ADDRESS_BIT :: VirtualAllocationCreateFlagBits

Allocation will be created from upper stack in a double stack pool.

This flag is only allowed for virtual blocks created with VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT flag.

pattern VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT :: VirtualAllocationCreateFlagBits

Allocation strategy that tries to minimize memory usage.

pattern VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT :: VirtualAllocationCreateFlagBits

Allocation strategy that tries to minimize allocation time.

pattern VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT :: VirtualAllocationCreateFlagBits

Allocation strategy that chooses always the lowest offset in available space. This is not the most efficient strategy but achieves highly packed data.

pattern VIRTUAL_ALLOCATION_CREATE_STRATEGY_MASK :: VirtualAllocationCreateFlagBits

A bit mask to extract only STRATEGY bits from entire set of flags.

These strategy flags are binary compatible with equivalent flags in AllocationCreateFlagBits.

Instances

Instances details
Bits VirtualAllocationCreateFlagBits Source # 
Instance details

Defined in VulkanMemoryAllocator

Methods

(.&.) :: VirtualAllocationCreateFlagBits -> VirtualAllocationCreateFlagBits -> VirtualAllocationCreateFlagBits #

(.|.) :: VirtualAllocationCreateFlagBits -> VirtualAllocationCreateFlagBits -> VirtualAllocationCreateFlagBits #

xor :: VirtualAllocationCreateFlagBits -> VirtualAllocationCreateFlagBits -> VirtualAllocationCreateFlagBits #

complement :: VirtualAllocationCreateFlagBits -> VirtualAllocationCreateFlagBits #

shift :: VirtualAllocationCreateFlagBits -> Int -> VirtualAllocationCreateFlagBits #

rotate :: VirtualAllocationCreateFlagBits -> Int -> VirtualAllocationCreateFlagBits #

zeroBits :: VirtualAllocationCreateFlagBits #

bit :: Int -> VirtualAllocationCreateFlagBits #

setBit :: VirtualAllocationCreateFlagBits -> Int -> VirtualAllocationCreateFlagBits #

clearBit :: VirtualAllocationCreateFlagBits -> Int -> VirtualAllocationCreateFlagBits #

complementBit :: VirtualAllocationCreateFlagBits -> Int -> VirtualAllocationCreateFlagBits #

testBit :: VirtualAllocationCreateFlagBits -> Int -> Bool #

bitSizeMaybe :: VirtualAllocationCreateFlagBits -> Maybe Int #

bitSize :: VirtualAllocationCreateFlagBits -> Int #

isSigned :: VirtualAllocationCreateFlagBits -> Bool #

shiftL :: VirtualAllocationCreateFlagBits -> Int -> VirtualAllocationCreateFlagBits #

unsafeShiftL :: VirtualAllocationCreateFlagBits -> Int -> VirtualAllocationCreateFlagBits #

shiftR :: VirtualAllocationCreateFlagBits -> Int -> VirtualAllocationCreateFlagBits #

unsafeShiftR :: VirtualAllocationCreateFlagBits -> Int -> VirtualAllocationCreateFlagBits #

rotateL :: VirtualAllocationCreateFlagBits -> Int -> VirtualAllocationCreateFlagBits #

rotateR :: VirtualAllocationCreateFlagBits -> Int -> VirtualAllocationCreateFlagBits #

popCount :: VirtualAllocationCreateFlagBits -> Int #

FiniteBits VirtualAllocationCreateFlagBits Source # 
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Storable VirtualAllocationCreateFlagBits Source # 
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Read VirtualAllocationCreateFlagBits Source # 
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Show VirtualAllocationCreateFlagBits Source # 
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Eq VirtualAllocationCreateFlagBits Source # 
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Ord VirtualAllocationCreateFlagBits Source # 
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Zero VirtualAllocationCreateFlagBits Source # 
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newtype Allocator Source #

VmaAllocator

Represents main object of this library initialized.

Fill structure AllocatorCreateInfo and call function createAllocator to create it. Call function destroyAllocator to destroy it.

It is recommended to create just one object of this type per VkDevice object, right after Vulkan is initialized and keep it alive until before Vulkan device is destroyed.

Constructors

Allocator Word64 

newtype Pool Source #

VmaPool

Represents custom memory pool.

Fill structure PoolCreateInfo and call function createPool to create it. Call function destroyPool to destroy it.

For more information see Custom memory pools.

Constructors

Pool Word64 

Instances

Instances details
Storable Pool Source # 
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Defined in VulkanMemoryAllocator

Methods

sizeOf :: Pool -> Int #

alignment :: Pool -> Int #

peekElemOff :: Ptr Pool -> Int -> IO Pool #

pokeElemOff :: Ptr Pool -> Int -> Pool -> IO () #

peekByteOff :: Ptr b -> Int -> IO Pool #

pokeByteOff :: Ptr b -> Int -> Pool -> IO () #

peek :: Ptr Pool -> IO Pool #

poke :: Ptr Pool -> Pool -> IO () #

Show Pool Source # 
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Methods

showsPrec :: Int -> Pool -> ShowS #

show :: Pool -> String #

showList :: [Pool] -> ShowS #

Eq Pool Source # 
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Methods

(==) :: Pool -> Pool -> Bool #

(/=) :: Pool -> Pool -> Bool #

Ord Pool Source # 
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Methods

compare :: Pool -> Pool -> Ordering #

(<) :: Pool -> Pool -> Bool #

(<=) :: Pool -> Pool -> Bool #

(>) :: Pool -> Pool -> Bool #

(>=) :: Pool -> Pool -> Bool #

max :: Pool -> Pool -> Pool #

min :: Pool -> Pool -> Pool #

IsHandle Pool Source # 
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Zero Pool Source # 
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Methods

zero :: Pool #

newtype Allocation Source #

VmaAllocation

Represents single memory allocation.

It may be either dedicated block of VkDeviceMemory or a specific region of a bigger block of this type plus unique offset.

There are multiple ways to create such object. You need to fill structure AllocationCreateInfo. For more information see /Choosing memory type/.

Although the library provides convenience functions that create Vulkan buffer or image, allocate memory for it and bind them together, binding of the allocation to a buffer or an image is out of scope of the allocation itself. Allocation object can exist without buffer/image bound, binding can be done manually by the user, and destruction of it can be done independently of destruction of the allocation.

The object also remembers its size and some other information. To retrieve this information, use function getAllocationInfo and inspect returned structure AllocationInfo.

Constructors

Allocation Word64 

newtype DefragmentationContext Source #

VmaDefragmentationContext

An opaque object that represents started defragmentation process.

Fill structure DefragmentationInfo and call function beginDefragmentation to create it. Call function endDefragmentation to destroy it.

Instances

Instances details
Storable DefragmentationContext Source # 
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Defined in VulkanMemoryAllocator

Show DefragmentationContext Source # 
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Eq DefragmentationContext Source # 
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Ord DefragmentationContext Source # 
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IsHandle DefragmentationContext Source # 
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Zero DefragmentationContext Source # 
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newtype VirtualAllocation Source #

VmaVirtualAllocation

Represents single memory allocation done inside VirtualBlock.

Use it as a unique identifier to virtual allocation within the single block.

Use value VK_NULL_HANDLE to represent a null/invalid allocation.

Instances

Instances details
Storable VirtualAllocation Source # 
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Defined in VulkanMemoryAllocator

Show VirtualAllocation Source # 
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Eq VirtualAllocation Source # 
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Ord VirtualAllocation Source # 
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IsHandle VirtualAllocation Source # 
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Zero VirtualAllocation Source # 
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newtype VirtualBlock Source #

VmaVirtualBlock

Handle to a virtual block object that allows to use core allocation algorithm without allocating any real GPU memory.

Fill in VirtualBlockCreateInfo structure and use createVirtualBlock to create it. Use destroyVirtualBlock to destroy it. For more information, see documentation chapter Virtual allocator.

This object is not thread-safe - should not be used from multiple threads simultaneously, must be synchronized externally.

Constructors

VirtualBlock Word64 

type FN_vmaAllocateDeviceMemoryFunction = Allocator -> ("memoryType" ::: Word32) -> DeviceMemory -> DeviceSize -> ("pUserData" ::: Ptr ()) -> IO () Source #

type FN_vmaFreeDeviceMemoryFunction = Allocator -> ("memoryType" ::: Word32) -> DeviceMemory -> DeviceSize -> ("pUserData" ::: Ptr ()) -> IO () Source #

data DeviceMemoryCallbacks Source #

VmaDeviceMemoryCallbacks

Set of callbacks that the library will call for vkAllocateMemory and vkFreeMemory.

Provided for informative purpose, e.g. to gather statistics about number of allocations or total amount of memory allocated in Vulkan.

Used in VmaAllocatorCreateInfo::pDeviceMemoryCallbacks.

Constructors

DeviceMemoryCallbacks 

Fields

Instances

Instances details
Storable DeviceMemoryCallbacks Source # 
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Defined in VulkanMemoryAllocator

Show DeviceMemoryCallbacks Source # 
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FromCStruct DeviceMemoryCallbacks Source # 
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Defined in VulkanMemoryAllocator

ToCStruct DeviceMemoryCallbacks Source # 
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Zero DeviceMemoryCallbacks Source # 
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Defined in VulkanMemoryAllocator

data VulkanFunctions Source #

VmaVulkanFunctions

Pointers to some Vulkan functions - a subset used by the library.

Used in VmaAllocatorCreateInfo::pVulkanFunctions.

Constructors

VulkanFunctions 

Fields

Instances

Instances details
Storable VulkanFunctions Source # 
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Defined in VulkanMemoryAllocator

Show VulkanFunctions Source # 
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Eq VulkanFunctions Source # 
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FromCStruct VulkanFunctions Source # 
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ToCStruct VulkanFunctions Source # 
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Zero VulkanFunctions Source # 
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data AllocatorCreateInfo Source #

VmaAllocatorCreateInfo

Description of a Allocator to be created.

Constructors

AllocatorCreateInfo 

Fields

  • flags :: AllocatorCreateFlags

    Flags for created allocator. Use AllocatorCreateFlagBits enum.

  • physicalDevice :: Ptr PhysicalDevice_T

    Vulkan physical device.

    It must be valid throughout whole lifetime of created allocator.

  • device :: Ptr Device_T

    Vulkan device.

    It must be valid throughout whole lifetime of created allocator.

  • preferredLargeHeapBlockSize :: DeviceSize

    Preferred size of a single VkDeviceMemory block to be allocated from large heaps > 1 GiB. Optional.

    Set to 0 to use default, which is currently 256 MiB.

  • allocationCallbacks :: Maybe AllocationCallbacks

    Custom CPU memory allocation callbacks. Optional.

    Optional, can be null. When specified, will also be used for all CPU-side memory allocations.

  • deviceMemoryCallbacks :: Maybe DeviceMemoryCallbacks

    Informative callbacks for vkAllocateMemory, vkFreeMemory. Optional.

    Optional, can be null.

  • heapSizeLimit :: Ptr DeviceSize

    Either null or a pointer to an array of limits on maximum number of bytes that can be allocated out of particular Vulkan memory heap.

    If not NULL, it must be a pointer to an array of VkPhysicalDeviceMemoryProperties::memoryHeapCount elements, defining limit on maximum number of bytes that can be allocated out of particular Vulkan memory heap.

    Any of the elements may be equal to VK_WHOLE_SIZE, which means no limit on that heap. This is also the default in case of pHeapSizeLimit = NULL.

    If there is a limit defined for a heap:

    • If user tries to allocate more memory from that heap using this allocator, the allocation fails with VK_ERROR_OUT_OF_DEVICE_MEMORY.
    • If the limit is smaller than heap size reported in VkMemoryHeap::size, the value of this limit will be reported instead when using getMemoryProperties.

    Warning! Using this feature may not be equivalent to installing a GPU with smaller amount of memory, because graphics driver doesn't necessary fail new allocations with VK_ERROR_OUT_OF_DEVICE_MEMORY result when memory capacity is exceeded. It may return success and just silently migrate some device memory blocks to system RAM. This driver behavior can also be controlled using VK_AMD_memory_overallocation_behavior extension.

  • vulkanFunctions :: Maybe VulkanFunctions

    Pointers to Vulkan functions. Can be null.

    For details see Pointers to Vulkan functions.

  • instance' :: Ptr Instance_T

    Handle to Vulkan instance object.

    Starting from version 3.0.0 this member is no longer optional, it must be set!

  • vulkanApiVersion :: Word32

    Optional. The highest version of Vulkan that the application is designed to use.

    It must be a value in the format as created by macro VK_MAKE_VERSION or a constant like: VK_API_VERSION_1_1, VK_API_VERSION_1_0. The patch version number specified is ignored. Only the major and minor versions are considered. It must be less or equal (preferably equal) to value as passed to vkCreateInstance as VkApplicationInfo::apiVersion. Only versions 1.0, 1.1, 1.2, 1.3 are supported by the current implementation. Leaving it initialized to zero is equivalent to VK_API_VERSION_1_0.

  • typeExternalMemoryHandleTypes :: Ptr ExternalMemoryHandleTypeFlagsKHR

    Either null or a pointer to an array of external memory handle types for each Vulkan memory type.

    If not NULL, it must be a pointer to an array of VkPhysicalDeviceMemoryProperties::memoryTypeCount elements, defining external memory handle types of particular Vulkan memory type, to be passed using VkExportMemoryAllocateInfoKHR.

    Any of the elements may be equal to 0, which means not to use VkExportMemoryAllocateInfoKHR on this memory type. This is also the default in case of pTypeExternalMemoryHandleTypes = NULL.

data AllocatorInfo Source #

VmaAllocatorInfo

Information about existing Allocator object.

Constructors

AllocatorInfo 

Fields

  • instance' :: Ptr Instance_T

    Handle to Vulkan instance object.

    This is the same value as has been passed through VmaAllocatorCreateInfo::instance.

  • physicalDevice :: Ptr PhysicalDevice_T

    Handle to Vulkan physical device object.

    This is the same value as has been passed through VmaAllocatorCreateInfo::physicalDevice.

  • device :: Ptr Device_T

    Handle to Vulkan device object.

    This is the same value as has been passed through VmaAllocatorCreateInfo::device.

Instances

Instances details
Storable AllocatorInfo Source # 
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Defined in VulkanMemoryAllocator

Show AllocatorInfo Source # 
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Eq AllocatorInfo Source # 
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Defined in VulkanMemoryAllocator

FromCStruct AllocatorInfo Source # 
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ToCStruct AllocatorInfo Source # 
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Zero AllocatorInfo Source # 
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Defined in VulkanMemoryAllocator

Methods

zero :: AllocatorInfo #

data Statistics Source #

VmaStatistics

Calculated statistics of memory usage e.g. in a specific memory type, heap, custom pool, or total.

These are fast to calculate. See functions: getHeapBudgets, getPoolStatistics.

Constructors

Statistics 

Fields

  • blockCount :: Word32

    Number of VkDeviceMemory objects - Vulkan memory blocks allocated.

  • allocationCount :: Word32

    Number of Allocation objects allocated.

    Dedicated allocations have their own blocks, so each one adds 1 to allocationCount as well as blockCount.

  • blockBytes :: DeviceSize

    Number of bytes allocated in VkDeviceMemory blocks.

    Note

    To avoid confusion, please be aware that what Vulkan calls an "allocation" - a whole VkDeviceMemory object (e.g. as in VkPhysicalDeviceLimits::maxMemoryAllocationCount) is called a "block" in VMA, while VMA calls "allocation" a Allocation object that represents a memory region sub-allocated from such block, usually for a single buffer or image.

  • allocationBytes :: DeviceSize

    Total number of bytes occupied by all Allocation objects.

    Always less or equal than blockBytes. Difference (blockBytes - allocationBytes) is the amount of memory allocated from Vulkan but unused by any Allocation.

data DetailedStatistics Source #

VmaDetailedStatistics

More detailed statistics than Statistics.

These are slower to calculate. Use for debugging purposes. See functions: calculateStatistics, calculatePoolStatistics.

Previous version of the statistics API provided averages, but they have been removed because they can be easily calculated as:

VkDeviceSize allocationSizeAvg = detailedStats.statistics.allocationBytes / detailedStats.statistics.allocationCount;
VkDeviceSize unusedBytes = detailedStats.statistics.blockBytes - detailedStats.statistics.allocationBytes;
VkDeviceSize unusedRangeSizeAvg = unusedBytes / detailedStats.unusedRangeCount;

Constructors

DetailedStatistics 

Fields

data TotalStatistics Source #

VmaTotalStatistics

General statistics from current state of the Allocator - total memory usage across all memory heaps and types.

These are slower to calculate. Use for debugging purposes. See function calculateStatistics.

memoryHeap

memoryHeap VmaTotalStatistics VmaTotalStatistics memoryHeap VmaDetailedStatistics VmaTotalStatistics::memoryHeap[VK_MAX_MEMORY_HEAPS]

memoryType

memoryType VmaTotalStatistics VmaTotalStatistics memoryType VmaDetailedStatistics VmaTotalStatistics::memoryType[VK_MAX_MEMORY_TYPES]

data Budget Source #

VmaBudget

Statistics of current memory usage and available budget for a specific memory heap.

These are fast to calculate. See function getHeapBudgets.

Constructors

Budget 

Fields

  • statistics :: Statistics

    Statistics fetched from the library.

  • usage :: DeviceSize

    Estimated current memory usage of the program, in bytes.

    Fetched from system using VK_EXT_memory_budget extension if enabled.

    It might be different than statistics.blockBytes (usually higher) due to additional implicit objects also occupying the memory, like swapchain, pipelines, descriptor heaps, command buffers, or VkDeviceMemory blocks allocated outside of this library, if any.

  • budget :: DeviceSize

    Estimated amount of memory available to the program, in bytes.

    Fetched from system using VK_EXT_memory_budget extension if enabled.

    It might be different (most probably smaller) than VkMemoryHeap::size[heapIndex] due to factors external to the program, decided by the operating system. Difference budget - usage is the amount of additional memory that can probably be allocated without problems. Exceeding the budget may result in various problems.

Instances

Instances details
Storable Budget Source # 
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Defined in VulkanMemoryAllocator

Show Budget Source # 
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Defined in VulkanMemoryAllocator

FromCStruct Budget Source # 
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Defined in VulkanMemoryAllocator

ToCStruct Budget Source # 
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Defined in VulkanMemoryAllocator

Zero Budget Source # 
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Defined in VulkanMemoryAllocator

Methods

zero :: Budget #

data AllocationCreateInfo Source #

VmaAllocationCreateInfo

Parameters of new Allocation.

To be used with functions like createBuffer, createImage, and many others.

Constructors

AllocationCreateInfo 

Fields

  • flags :: AllocationCreateFlags
  • usage :: MemoryUsage

    Intended usage of memory.

    You can leave MEMORY_USAGE_UNKNOWN if you specify memory requirements in other way.

     

    If pool is not null, this member is ignored.

  • requiredFlags :: MemoryPropertyFlags

    Flags that must be set in a Memory Type chosen for an allocation.

    Leave 0 if you specify memory requirements in other way.

     

    If pool is not null, this member is ignored.

  • preferredFlags :: MemoryPropertyFlags

    Flags that preferably should be set in a memory type chosen for an allocation.

    Set to 0 if no additional flags are preferred.

     

    If pool is not null, this member is ignored.

  • memoryTypeBits :: Word32

    Bitmask containing one bit set for every memory type acceptable for this allocation.

    Value 0 is equivalent to UINT32_MAX - it means any memory type is accepted if it meets other requirements specified by this structure, with no further restrictions on memory type index.

     

    If pool is not null, this member is ignored.

  • pool :: Pool

    Pool that this allocation should be created in.

    Leave VK_NULL_HANDLE to allocate from default pool. If not null, members: usage, requiredFlags, preferredFlags, memoryTypeBits are ignored.

  • userData :: Ptr ()

    Custom general-purpose pointer that will be stored in Allocation, can be read as VmaAllocationInfo::pUserData and changed using setAllocationUserData.

    If ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT is used, it must be either null or pointer to a null-terminated string. The string will be then copied to internal buffer, so it doesn't need to be valid after allocation call.

  • priority :: Float

    A floating-point value between 0 and 1, indicating the priority of the allocation relative to other memory allocations.

    It is used only when ALLOCATOR_CREATE_EXT_MEMORY_PRIORITY_BIT flag was used during creation of the Allocator object and this allocation ends up as dedicated or is explicitly forced as dedicated using ALLOCATION_CREATE_DEDICATED_MEMORY_BIT. Otherwise, it has the priority of a memory block where it is placed and this variable is ignored.

Instances

Instances details
Storable AllocationCreateInfo Source # 
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Defined in VulkanMemoryAllocator

Show AllocationCreateInfo Source # 
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Defined in VulkanMemoryAllocator

FromCStruct AllocationCreateInfo Source # 
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Defined in VulkanMemoryAllocator

ToCStruct AllocationCreateInfo Source # 
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Defined in VulkanMemoryAllocator

Zero AllocationCreateInfo Source # 
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Defined in VulkanMemoryAllocator

data PoolCreateInfo Source #

VmaPoolCreateInfo

Describes parameter of created Pool.

Constructors

PoolCreateInfo 

Fields

  • memoryTypeIndex :: Word32

    Vulkan memory type index to allocate this pool from.

  • flags :: PoolCreateFlags

    Use combination of PoolCreateFlagBits.

  • blockSize :: DeviceSize

    Size of a single VkDeviceMemory block to be allocated as part of this pool, in bytes. Optional.

    Specify nonzero to set explicit, constant size of memory blocks used by this pool.

    Leave 0 to use default and let the library manage block sizes automatically. Sizes of particular blocks may vary. In this case, the pool will also support dedicated allocations.

  • minBlockCount :: Word64

    Minimum number of blocks to be always allocated in this pool, even if they stay empty.

    Set to 0 to have no preallocated blocks and allow the pool be completely empty.

  • maxBlockCount :: Word64

    Maximum number of blocks that can be allocated in this pool. Optional.

    Set to 0 to use default, which is SIZE_MAX, which means no limit.

    Set to same value as VmaPoolCreateInfo::minBlockCount to have fixed amount of memory allocated throughout whole lifetime of this pool.

  • priority :: Float

    A floating-point value between 0 and 1, indicating the priority of the allocations in this pool relative to other memory allocations.

    It is used only when ALLOCATOR_CREATE_EXT_MEMORY_PRIORITY_BIT flag was used during creation of the Allocator object. Otherwise, this variable is ignored.

  • minAllocationAlignment :: DeviceSize

    Additional minimum alignment to be used for all allocations created from this pool. Can be 0.

    Leave 0 (default) not to impose any additional alignment. If not 0, it must be a power of two. It can be useful in cases where alignment returned by Vulkan by functions like vkGetBufferMemoryRequirements is not enough, e.g. when doing interop with OpenGL.

  • memoryAllocateNext :: Ptr ()

    Additional pNext chain to be attached to VkMemoryAllocateInfo used for every allocation made by this pool. Optional.

    Optional, can be null. If not null, it must point to a pNext chain of structures that can be attached to VkMemoryAllocateInfo. It can be useful for special needs such as adding VkExportMemoryAllocateInfoKHR. Structures pointed by this member must remain alive and unchanged for the whole lifetime of the custom pool.

    Please note that some structures, e.g. VkMemoryPriorityAllocateInfoEXT, VkMemoryDedicatedAllocateInfoKHR, can be attached automatically by this library when using other, more convenient of its features.

data AllocationInfo Source #

VmaAllocationInfo

Parameters of Allocation objects, that can be retrieved using function getAllocationInfo.

Constructors

AllocationInfo 

Fields

  • memoryType :: Word32

    Memory type index that this allocation was allocated from.

    It never changes.

  • deviceMemory :: DeviceMemory

    Handle to Vulkan memory object.

    Same memory object can be shared by multiple allocations.

    It can change after the allocation is moved during Defragmentation.

  • offset :: DeviceSize

    Offset in VkDeviceMemory object 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 createBuffer, createImage, functions that operate on these resources refer to the beginning of the buffer or image, not entire device memory block. Functions like mapMemory, bindBufferMemory also refer to the beginning of the allocation and apply this offset automatically.

    It can change after the allocation is moved during Defragmentation.

  • size :: DeviceSize

    Size of this allocation, in bytes.

    It never changes.

    Note

    Allocation size returned in this variable may be greater than the size requested for the resource e.g. as VkBufferCreateInfo::size. Whole size of the allocation is accessible for operations on memory e.g. using a pointer after mapping with mapMemory, but operations on the resource e.g. using vkCmdCopyBuffer must be limited to the size of the resource.

  • mappedData :: Ptr ()

    Pointer to the beginning of this allocation as mapped data.

    If the allocation hasn't been mapped using mapMemory and hasn't been created with ALLOCATION_CREATE_MAPPED_BIT flag, this value is null.

    It can change after call to mapMemory, unmapMemory. It can also change after the allocation is moved during Defragmentation.

  • userData :: Ptr ()

    Custom general-purpose pointer that was passed as VmaAllocationCreateInfo::pUserData or set using setAllocationUserData.

    It can change after call to setAllocationUserData for this allocation.

  • name :: Maybe ByteString

    Custom allocation name that was set with setAllocationName.

    It can change after call to setAllocationName for this allocation.

    Another way to set custom name is to pass it in VmaAllocationCreateInfo::pUserData with additional flag ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT set [DEPRECATED].

data DefragmentationInfo Source #

VmaDefragmentationInfo

Parameters for defragmentation.

To be used with function beginDefragmentation.

Constructors

DefragmentationInfo 

Fields

Instances

Instances details
Storable DefragmentationInfo Source # 
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Defined in VulkanMemoryAllocator

Show DefragmentationInfo Source # 
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Eq DefragmentationInfo Source # 
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FromCStruct DefragmentationInfo Source # 
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ToCStruct DefragmentationInfo Source # 
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Zero DefragmentationInfo Source # 
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data DefragmentationMove Source #

VmaDefragmentationMove

Single move of an allocation to be done for defragmentation.

Constructors

DefragmentationMove 

Fields

Instances

Instances details
Storable DefragmentationMove Source # 
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Defined in VulkanMemoryAllocator

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Eq DefragmentationMove Source # 
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FromCStruct DefragmentationMove Source # 
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ToCStruct DefragmentationMove Source # 
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Zero DefragmentationMove Source # 
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data DefragmentationPassMoveInfo Source #

VmaDefragmentationPassMoveInfo

Parameters for incremental defragmentation steps.

To be used with function beginDefragmentationPass.

Constructors

DefragmentationPassMoveInfo 

Fields

  • moveCount :: Word32

    Number of elements in the pMoves array.

  • moves :: Ptr DefragmentationMove

    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 beginDefragmentationPass, destroyed in endDefragmentationPass.

    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 endDefragmentationPass. 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 DEFRAGMENTATION_MOVE_OPERATION_IGNORE.

    Alternatively, if you decide you want to completely remove the allocation:

    1. Destroy its buffer/image.
    2. Set VmaDefragmentationMove::operation to DEFRAGMENTATION_MOVE_OPERATION_DESTROY.

    Then, after endDefragmentationPass the allocation will be freed.

Instances

Instances details
Storable DefragmentationPassMoveInfo Source # 
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Defined in VulkanMemoryAllocator

Show DefragmentationPassMoveInfo Source # 
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Eq DefragmentationPassMoveInfo Source # 
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FromCStruct DefragmentationPassMoveInfo Source # 
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ToCStruct DefragmentationPassMoveInfo Source # 
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Zero DefragmentationPassMoveInfo Source # 
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data DefragmentationStats Source #

VmaDefragmentationStats

Statistics returned for defragmentation process in function endDefragmentation.

Constructors

DefragmentationStats 

Fields

Instances

Instances details
Storable DefragmentationStats Source # 
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Defined in VulkanMemoryAllocator

Show DefragmentationStats Source # 
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Eq DefragmentationStats Source # 
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FromCStruct DefragmentationStats Source # 
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ToCStruct DefragmentationStats Source # 
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Zero DefragmentationStats Source # 
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data VirtualBlockCreateInfo Source #

VmaVirtualBlockCreateInfo

Parameters of created VirtualBlock object to be passed to createVirtualBlock.

Constructors

VirtualBlockCreateInfo 

Fields

data VirtualAllocationCreateInfo Source #

VmaVirtualAllocationCreateInfo

Parameters of created virtual allocation to be passed to virtualAllocate.

Constructors

VirtualAllocationCreateInfo 

Fields

Instances

Instances details
Storable VirtualAllocationCreateInfo Source # 
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Defined in VulkanMemoryAllocator

Show VirtualAllocationCreateInfo Source # 
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FromCStruct VirtualAllocationCreateInfo Source # 
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ToCStruct VirtualAllocationCreateInfo Source # 
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Zero VirtualAllocationCreateInfo Source # 
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data VirtualAllocationInfo Source #

VmaVirtualAllocationInfo

Parameters of an existing virtual allocation, returned by getVirtualAllocationInfo.

Constructors

VirtualAllocationInfo 

Fields

  • offset :: DeviceSize

    Offset of the allocation.

    Offset at which the allocation was made.

  • size :: DeviceSize

    Size of the allocation.

    Same value as passed in VmaVirtualAllocationCreateInfo::size.

  • userData :: Ptr ()

    Custom pointer associated with the allocation.

    Same value as passed in VmaVirtualAllocationCreateInfo::pUserData or to setVirtualAllocationUserData.

Instances

Instances details
Storable VirtualAllocationInfo Source # 
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Defined in VulkanMemoryAllocator

Show VirtualAllocationInfo Source # 
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FromCStruct VirtualAllocationInfo Source # 
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ToCStruct VirtualAllocationInfo Source # 
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Zero VirtualAllocationInfo Source # 
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