From d6b705bf75ffe02eecefc68d2938e6b2009cac86 Mon Sep 17 00:00:00 2001 From: Adam Sawicki Date: Sun, 4 Sep 2022 13:26:39 +0200 Subject: [PATCH] Added function vmaCreateAliasingBuffer2, vmaCreateAliasingImage2 with new parameter allocationLocalOffset Thanks @sagaceilo for the idea! --- docs/html/choosing_memory_type.html | 4 +- docs/html/general_considerations.html | 2 +- docs/html/globals.html | 2 + docs/html/globals_func.html | 2 + docs/html/group__group__alloc.html | 135 ++++++++++++++++++++-- docs/html/index.html | 2 +- docs/html/memory_mapping.html | 2 +- docs/html/quick_start.html | 2 +- docs/html/search/all_11.js | 154 +++++++++++++------------- docs/html/search/functions_0.js | 94 ++++++++-------- docs/html/statistics.html | 2 +- docs/html/usage_patterns.html | 2 +- docs/html/virtual_allocator.html | 2 +- docs/html/vk__mem__alloc_8h.html | 8 +- include/vk_mem_alloc.h | 74 +++++++++++-- 15 files changed, 341 insertions(+), 146 deletions(-) diff --git a/docs/html/choosing_memory_type.html b/docs/html/choosing_memory_type.html index 60493ae..51db66e 100644 --- a/docs/html/choosing_memory_type.html +++ b/docs/html/choosing_memory_type.html @@ -100,7 +100,7 @@ Usage
VmaAllocation
Represents single memory allocation.

If you have a preference for putting the resource in GPU (device) memory or CPU (host) memory on systems with discrete graphics card that have the memories separate, you can use VMA_MEMORY_USAGE_AUTO_PREFER_DEVICE or VMA_MEMORY_USAGE_AUTO_PREFER_HOST.

When using VMA_MEMORY_USAGE_AUTO* while you want to map the allocated memory, you also need to specify one of the host access flags: VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT or VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT. This will help the library decide about preferred memory type to ensure it has VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT so you can map it.

-

For example, a staging buffer that will be filled via mapped pointer and then used as a source of transfer to the buffer decribed previously can be created like this. It will likely and up in a memory type that is HOST_VISIBLE and HOST_COHERENT but not HOST_CACHED (meaning uncached, write-combined) and not DEVICE_LOCAL (meaning system RAM).

+

For example, a staging buffer that will be filled via mapped pointer and then used as a source of transfer to the buffer described previously can be created like this. It will likely and up in a memory type that is HOST_VISIBLE and HOST_COHERENT but not HOST_CACHED (meaning uncached, write-combined) and not DEVICE_LOCAL (meaning system RAM).

VkBufferCreateInfo stagingBufferInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
stagingBufferInfo.size = 65536;
stagingBufferInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
@@ -115,7 +115,7 @@ Usage
VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT
@ VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT
Definition: vk_mem_alloc.h:595
VmaAllocationCreateInfo::flags
VmaAllocationCreateFlags flags
Use VmaAllocationCreateFlagBits enum.
Definition: vk_mem_alloc.h:1221

For more examples of creating different kinds of resources, see chapter Recommended usage patterns.

-

Usage values VMA_MEMORY_USAGE_AUTO* are legal to use only when the library knows about the resource being created by having VkBufferCreateInfo / VkImageCreateInfo passed, so they work with functions like: vmaCreateBuffer(), vmaCreateImage(), vmaFindMemoryTypeIndexForBufferInfo() etc. If you allocate raw memory using function vmaAllocateMemory(), you have to use other means of selecting memory type, as decribed below.

+

Usage values VMA_MEMORY_USAGE_AUTO* are legal to use only when the library knows about the resource being created by having VkBufferCreateInfo / VkImageCreateInfo passed, so they work with functions like: vmaCreateBuffer(), vmaCreateImage(), vmaFindMemoryTypeIndexForBufferInfo() etc. If you allocate raw memory using function vmaAllocateMemory(), you have to use other means of selecting memory type, as described below.

Note
Old usage values (VMA_MEMORY_USAGE_GPU_ONLY, VMA_MEMORY_USAGE_CPU_ONLY, VMA_MEMORY_USAGE_CPU_TO_GPU, VMA_MEMORY_USAGE_GPU_TO_CPU, VMA_MEMORY_USAGE_CPU_COPY) are still available and work same way as in previous versions of the library for backward compatibility, but they are not recommended.

Required and preferred flags

diff --git a/docs/html/general_considerations.html b/docs/html/general_considerations.html index 512039e..f58dfd5 100644 --- a/docs/html/general_considerations.html +++ b/docs/html/general_considerations.html @@ -87,7 +87,7 @@ Versioning and compatibility
  • Incrementing Major version means a release could break some backward compatibility.

    • All changes between official releases are documented in file "CHANGELOG.md".

    -
    Warning
    Backward compatiblity is considered on the level of C++ source code, not binary linkage. Adding new members to existing structures is treated as backward compatible if initializing the new members to binary zero results in the old behavior. You should always fully initialize all library structures to zeros and not rely on their exact binary size.
    +
    Warning
    Backward compatibility is considered on the level of C++ source code, not binary linkage. Adding new members to existing structures is treated as backward compatible if initializing the new members to binary zero results in the old behavior. You should always fully initialize all library structures to zeros and not rely on their exact binary size.

    Validation layer warnings

    When using this library, you can meet following types of warnings issued by Vulkan validation layer. They don't necessarily indicate a bug, so you may need to just ignore them.

    diff --git a/docs/html/globals.html b/docs/html/globals.html index 1588577..87b2535 100644 --- a/docs/html/globals.html +++ b/docs/html/globals.html @@ -164,7 +164,9 @@ $(function() {
  • vmaCheckPoolCorruption() : vk_mem_alloc.h
  • vmaClearVirtualBlock() : vk_mem_alloc.h
  • vmaCreateAliasingBuffer() : vk_mem_alloc.h
    • +
  • vmaCreateAliasingBuffer2() : vk_mem_alloc.h
  • vmaCreateAliasingImage() : vk_mem_alloc.h
    • +
  • vmaCreateAliasingImage2() : vk_mem_alloc.h
  • vmaCreateAllocator() : vk_mem_alloc.h
  • vmaCreateBuffer() : vk_mem_alloc.h
  • vmaCreateBufferWithAlignment() : vk_mem_alloc.h
    • diff --git a/docs/html/globals_func.html b/docs/html/globals_func.html index 39bb98d..996c43d 100644 --- a/docs/html/globals_func.html +++ b/docs/html/globals_func.html @@ -85,7 +85,9 @@ $(function() {
  • vmaCheckPoolCorruption() : vk_mem_alloc.h
  • vmaClearVirtualBlock() : vk_mem_alloc.h
  • vmaCreateAliasingBuffer() : vk_mem_alloc.h
    • +
  • vmaCreateAliasingBuffer2() : vk_mem_alloc.h
  • vmaCreateAliasingImage() : vk_mem_alloc.h
    • +
  • vmaCreateAliasingImage2() : vk_mem_alloc.h
  • vmaCreateAllocator() : vk_mem_alloc.h
  • vmaCreateBuffer() : vk_mem_alloc.h
  • vmaCreateBufferWithAlignment() : vk_mem_alloc.h
    • diff --git a/docs/html/group__group__alloc.html b/docs/html/group__group__alloc.html index 77e91b3..96563b6 100644 --- a/docs/html/group__group__alloc.html +++ b/docs/html/group__group__alloc.html @@ -338,6 +338,9 @@ Functions VkResult vmaCreateAliasingBuffer (VmaAllocator allocator, VmaAllocation allocation, const VkBufferCreateInfo *pBufferCreateInfo, VkBuffer *pBuffer)  Creates a new VkBuffer, binds already created memory for it. More...
      +VkResult vmaCreateAliasingBuffer2 (VmaAllocator allocator, VmaAllocation allocation, VkDeviceSize allocationLocalOffset, const VkBufferCreateInfo *pBufferCreateInfo, VkBuffer *pBuffer) + Creates a new VkBuffer, binds already created memory for it. More...
    +  void vmaDestroyBuffer (VmaAllocator allocator, VkBuffer buffer, VmaAllocation allocation)  Destroys Vulkan buffer and frees allocated memory. More...
      @@ -345,8 +348,11 @@ Functions  Function similar to vmaCreateBuffer(). More...
      VkResult vmaCreateAliasingImage (VmaAllocator allocator, VmaAllocation allocation, const VkImageCreateInfo *pImageCreateInfo, VkImage *pImage) - Function similar to vmaCreateAliasingBuffer(). More...
    + Function similar to vmaCreateAliasingBuffer() but for images. More...
      +VkResult vmaCreateAliasingImage2 (VmaAllocator allocator, VmaAllocation allocation, VkDeviceSize allocationLocalOffset, const VkImageCreateInfo *pImageCreateInfo, VkImage *pImage) + Function similar to vmaCreateAliasingBuffer2() but for images. More...
    +  void vmaDestroyImage (VmaAllocator allocator, VkImage image, VmaAllocation allocation)  Destroys Vulkan image and frees allocated memory. More...
      @@ -659,7 +665,7 @@ Functions VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT 

    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.

    -VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT 

    Allocation strategy that chooses always the lowest offset in available space. This is not the most efficient strategy but achieves highly packed data. Used internally by defragmentation, not recomended in typical usage.

    +VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT 

    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.

    VMA_ALLOCATION_CREATE_STRATEGY_BEST_FIT_BIT 

    Alias to VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT.

    @@ -1137,7 +1143,7 @@ Functions - +
    allocatorAllocator object.
    contextContext object that has been created by vmaBeginDefragmentation().
    [out]pPassInfoComputed informations for current pass.
    [out]pPassInfoComputed information for current pass.
    @@ -1482,7 +1488,74 @@ Functions
  • 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 vmaDestroyBuffer().

    +

    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 vmaDestroyBuffer().

    +
    Note
    There is a new version of this function augmented with parameter allocationLocalOffset - see vmaCreateAliasingBuffer2().
    + + + + +

    ◆ vmaCreateAliasingBuffer2()

    + +
    +
    + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    VkResult vmaCreateAliasingBuffer2 (VmaAllocator allocator,
    VmaAllocation allocation,
    VkDeviceSize allocationLocalOffset,
    const VkBufferCreateInfo * pBufferCreateInfo,
    VkBuffer * pBuffer 
    )
    +
    + +

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

    +
    Parameters
    + + + + + + +
    allocator
    allocationAllocation that provides memory to be used for binding new buffer to it.
    allocationLocalOffsetAdditional offset to be added while binding, relative to the beginning of the allocation. Normally it should be 0.
    pBufferCreateInfo
    [out]pBufferBuffer that was created.
    +
    +
    +

    This function automatically:

    +
      +
    1. Creates buffer.
      2. +
    2. Binds the buffer with the supplied memory.
      3. +
    +

    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 vmaDestroyBuffer().

    +
    Note
    This is a new version of the function augmented with parameter allocationLocalOffset.
    @@ -1524,7 +1597,55 @@ Functions
    -

    Function similar to vmaCreateAliasingBuffer().

    +

    Function similar to vmaCreateAliasingBuffer() but for images.

    + +
    + + +

    ◆ vmaCreateAliasingImage2()

    + +
    +
    + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    VkResult vmaCreateAliasingImage2 (VmaAllocator allocator,
    VmaAllocation allocation,
    VkDeviceSize allocationLocalOffset,
    const VkImageCreateInfo * pImageCreateInfo,
    VkImage * pImage 
    )
    +
    + +

    Function similar to vmaCreateAliasingBuffer2() but for images.

    @@ -1955,7 +2076,7 @@ Functions - +
    allocatorAllocator object.
    contextContext object that has been created by vmaBeginDefragmentation().
    pPassInfoComputed informations for current pass filled by vmaBeginDefragmentationPass() and possibly modified by you.
    pPassInfoComputed information for current pass filled by vmaBeginDefragmentationPass() and possibly modified by you.
    @@ -2319,7 +2440,7 @@ Functions

    Returns current information about specified allocation.

    -

    Current paramteres of given allocation are returned in pAllocationInfo.

    +

    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 VmaAllocationInfo structure while creating your resource, from function vmaCreateBuffer(), vmaCreateImage(). You can remember it if you are sure parameters don't change (e.g. due to defragmentation).

    diff --git a/docs/html/index.html b/docs/html/index.html index 702c23f..0958266 100644 --- a/docs/html/index.html +++ b/docs/html/index.html @@ -65,7 +65,7 @@ $(function() {
    Vulkan Memory Allocator
    -

    Version 3.0.1 (2022-05-26)

    +

    Version 3.1.0-development

    Copyright (c) 2017-2022 Advanced Micro Devices, Inc. All rights reserved.
    License: MIT

    API documentation divided into groups: Modules

    diff --git a/docs/html/memory_mapping.html b/docs/html/memory_mapping.html index d0b20d4..2a509e9 100644 --- a/docs/html/memory_mapping.html +++ b/docs/html/memory_mapping.html @@ -98,7 +98,7 @@ Mapping functions

    It happens because the library maps entire VkDeviceMemory block, where different types of images and buffers may end up together, especially on GPUs with unified memory like Intel. You can safely ignore it if you are sure you access only memory of the intended object that you wanted to map.

    Persistently mapped memory

    -

    Kepping your memory persistently mapped is generally OK in Vulkan. You don't need to unmap it before using its data on the GPU. The library provides a special feature designed for that: Allocations made with VMA_ALLOCATION_CREATE_MAPPED_BIT flag set in VmaAllocationCreateInfo::flags stay mapped all the time, so you can just access CPU pointer to it any time without a need to call any "map" or "unmap" function. Example:

    +

    Keeping your memory persistently mapped is generally OK in Vulkan. You don't need to unmap it before using its data on the GPU. The library provides a special feature designed for that: Allocations made with VMA_ALLOCATION_CREATE_MAPPED_BIT flag set in VmaAllocationCreateInfo::flags stay mapped all the time, so you can just access CPU pointer to it any time without a need to call any "map" or "unmap" function. Example:

    VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
    bufCreateInfo.size = sizeof(ConstantBuffer);
    bufCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
    diff --git a/docs/html/quick_start.html b/docs/html/quick_start.html index 3b25570..c875f98 100644 --- a/docs/html/quick_start.html +++ b/docs/html/quick_start.html @@ -94,7 +94,7 @@ Initialization

    Only members physicalDevice, device, instance are required. However, you should inform the library which Vulkan version do you use by setting VmaAllocatorCreateInfo::vulkanApiVersion and which extensions did you enable by setting VmaAllocatorCreateInfo::flags (like VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT for VK_KHR_buffer_device_address). Otherwise, VMA would use only features of Vulkan 1.0 core with no extensions.

    Selecting Vulkan version

    -

    VMA supports Vulkan version down to 1.0, for backward compatibility. If you want to use higher version, you need to inform the library about it. This is a two-step proces.

    +

    VMA supports Vulkan version down to 1.0, for backward compatibility. If you want to use higher version, you need to inform the library about it. This is a two-step process.

    Step 1: Compile time. By default, VMA compiles with code supporting the highest Vulkan version found in the included <vulkan/vulkan.h> that is also supported by the library. If this is OK, you don't need to do anything. However, if you want to compile VMA as if only some lower Vulkan version was available, define macro VMA_VULKAN_VERSION before every #include "vk_mem_alloc.h". It should have decimal numeric value in form of ABBBCCC, where A = major, BBB = minor, CCC = patch Vulkan version. For example, to compile against Vulkan 1.2:

    #define VMA_VULKAN_VERSION 1002000 // Vulkan 1.2
    #include "vk_mem_alloc.h"
    diff --git a/docs/html/search/all_11.js b/docs/html/search/all_11.js index 6d363cb..7676b04 100644 --- a/docs/html/search/all_11.js +++ b/docs/html/search/all_11.js @@ -109,7 +109,7 @@ var searchData= ['vmaallocatorcreateflagbits_106',['VmaAllocatorCreateFlagBits',['../group__group__init.html#ga4f87c9100d154a65a4ad495f7763cf7c',1,'VmaAllocatorCreateFlagBits(): vk_mem_alloc.h'],['../group__group__init.html#gafd73b95e737ee7e76f827cb5472f559f',1,'VmaAllocatorCreateFlagBits(): vk_mem_alloc.h']]], ['vmaallocatorcreateflags_107',['VmaAllocatorCreateFlags',['../group__group__init.html#gacfe6863e160722c2c1bbcf7573fddc4d',1,'vk_mem_alloc.h']]], ['vmaallocatorcreateinfo_108',['VmaAllocatorCreateInfo',['../struct_vma_allocator_create_info.html',1,'VmaAllocatorCreateInfo'],['../group__group__init.html#gaad9652301d33759b83e52d4f3605a14a',1,'VmaAllocatorCreateInfo(): vk_mem_alloc.h']]], - 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    Numeric statistics

    -

    If you need to obtain basic statistics about memory usage per heap, together with current budget, you can call function vmaGetHeapBudgets() and inspect structure VmaBudget. This is useful to keep track of memory usage and stay withing budget (see also Staying within budget). Example:

    +

    If you need to obtain basic statistics about memory usage per heap, together with current budget, you can call function vmaGetHeapBudgets() and inspect structure VmaBudget. This is useful to keep track of memory usage and stay within budget (see also Staying within budget). Example:

    uint32_t heapIndex = ...
    VmaBudget budgets[VK_MAX_MEMORY_HEAPS];
    diff --git a/docs/html/usage_patterns.html b/docs/html/usage_patterns.html index f0e22cd..827596f 100644 --- a/docs/html/usage_patterns.html +++ b/docs/html/usage_patterns.html @@ -159,7 +159,7 @@ Advanced data uploading

    For resources that you frequently write on CPU via mapped pointer and freqnently read on GPU e.g. as a uniform buffer (also called "dynamic"), multiple options are possible:

    1. Easiest solution is to have one copy of the resource in HOST_VISIBLE memory, even if it means system RAM (not DEVICE_LOCAL) on systems with a discrete graphics card, and make the device reach out to that resource directly.
        -
      • Reads performed by the device will then go through PCI Express bus. The performace of this access may be limited, but it may be fine depending on the size of this resource (whether it is small enough to quickly end up in GPU cache) and the sparsity of access.
        • +
      • Reads performed by the device will then go through PCI Express bus. The performance of this access may be limited, but it may be fine depending on the size of this resource (whether it is small enough to quickly end up in GPU cache) and the sparsity of access.
    2. On systems with unified memory (e.g. AMD APU or Intel integrated graphics, mobile chips), a memory type may be available that is both HOST_VISIBLE (available for mapping) and DEVICE_LOCAL (fast to access from the GPU). Then, it is likely the best choice for such type of resource.
      3. diff --git a/docs/html/virtual_allocator.html b/docs/html/virtual_allocator.html index b533afc..cf74763 100644 --- a/docs/html/virtual_allocator.html +++ b/docs/html/virtual_allocator.html @@ -89,7 +89,7 @@ Creating virtual block
      VmaVirtualBlock
      Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...

    Making virtual allocations

    -

    VmaVirtualBlock object contains internal data structure that keeps track of free and occupied regions using the same code as the main Vulkan memory allocator. Similarly to VmaAllocation for standard GPU allocations, there is VmaVirtualAllocation type that represents an opaque handle to an allocation withing the virtual block.

    +

    VmaVirtualBlock object contains internal data structure that keeps track of free and occupied regions using the same code as the main Vulkan memory allocator. Similarly to VmaAllocation for standard GPU allocations, there is VmaVirtualAllocation type that represents an opaque handle to an allocation within the virtual block.

    In order to make such allocation:

    1. Fill in VmaVirtualAllocationCreateInfo structure.
      2. diff --git a/docs/html/vk__mem__alloc_8h.html b/docs/html/vk__mem__alloc_8h.html index 96fb024..5ceef58 100644 --- a/docs/html/vk__mem__alloc_8h.html +++ b/docs/html/vk__mem__alloc_8h.html @@ -500,6 +500,9 @@ Functions VkResult vmaCreateAliasingBuffer (VmaAllocator allocator, VmaAllocation allocation, const VkBufferCreateInfo *pBufferCreateInfo, VkBuffer *pBuffer)  Creates a new VkBuffer, binds already created memory for it. More...
        +VkResult vmaCreateAliasingBuffer2 (VmaAllocator allocator, VmaAllocation allocation, VkDeviceSize allocationLocalOffset, const VkBufferCreateInfo *pBufferCreateInfo, VkBuffer *pBuffer) + Creates a new VkBuffer, binds already created memory for it. More...
      +  void vmaDestroyBuffer (VmaAllocator allocator, VkBuffer buffer, VmaAllocation allocation)  Destroys Vulkan buffer and frees allocated memory. More...
        @@ -507,8 +510,11 @@ Functions  Function similar to vmaCreateBuffer(). More...
        VkResult vmaCreateAliasingImage (VmaAllocator allocator, VmaAllocation allocation, const VkImageCreateInfo *pImageCreateInfo, VkImage *pImage) - Function similar to vmaCreateAliasingBuffer(). More...
      + Function similar to vmaCreateAliasingBuffer() but for images. More...
        +VkResult vmaCreateAliasingImage2 (VmaAllocator allocator, VmaAllocation allocation, VkDeviceSize allocationLocalOffset, const VkImageCreateInfo *pImageCreateInfo, VkImage *pImage) + Function similar to vmaCreateAliasingBuffer2() but for images. More...
      +  void vmaDestroyImage (VmaAllocator allocator, VkImage image, VmaAllocation allocation)  Destroys Vulkan image and frees allocated memory. More...
        diff --git a/include/vk_mem_alloc.h b/include/vk_mem_alloc.h index f03b327..d090864 100644 --- a/include/vk_mem_alloc.h +++ b/include/vk_mem_alloc.h @@ -25,7 +25,7 @@ /** \mainpage Vulkan Memory Allocator -Version 3.0.1 (2022-05-26) +Version 3.1.0-development Copyright (c) 2017-2022 Advanced Micro Devices, Inc. All rights reserved. \n License: MIT @@ -2341,6 +2341,8 @@ 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 vmaDestroyBuffer(). + +\note There is a new version of this function augmented with parameter `allocationLocalOffset` - see vmaCreateAliasingBuffer2(). */ VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingBuffer( VmaAllocator VMA_NOT_NULL allocator, @@ -2348,6 +2350,35 @@ VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingBuffer( const VkBufferCreateInfo* VMA_NOT_NULL pBufferCreateInfo, VkBuffer VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pBuffer); +/** \brief Creates a new `VkBuffer`, binds already created memory for it. + +\param allocator +\param allocation Allocation that provides memory to be used for binding new buffer to it. +\param allocationLocalOffset Additional offset to be added while binding, relative to the beginning of the allocation. Normally it should be 0. +\param pBufferCreateInfo +\param[out] pBuffer Buffer that was created. + +This function automatically: + +-# Creates buffer. +-# 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 vmaDestroyBuffer(). + +\note This is a new version of the function augmented with parameter `allocationLocalOffset`. +*/ +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingBuffer2( + VmaAllocator VMA_NOT_NULL allocator, + VmaAllocation VMA_NOT_NULL allocation, + VkDeviceSize allocationLocalOffset, + const VkBufferCreateInfo* VMA_NOT_NULL pBufferCreateInfo, + VkBuffer VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pBuffer); + /** \brief Destroys Vulkan buffer and frees allocated memory. This is just a convenience function equivalent to: @@ -2373,13 +2404,21 @@ VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateImage( VmaAllocation VMA_NULLABLE* VMA_NOT_NULL pAllocation, VmaAllocationInfo* VMA_NULLABLE pAllocationInfo); -/// Function similar to vmaCreateAliasingBuffer(). +/// Function similar to vmaCreateAliasingBuffer() but for images. VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingImage( VmaAllocator VMA_NOT_NULL allocator, VmaAllocation VMA_NOT_NULL allocation, const VkImageCreateInfo* VMA_NOT_NULL pImageCreateInfo, VkImage VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pImage); +/// Function similar to vmaCreateAliasingBuffer2() but for images. +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingImage2( + VmaAllocator VMA_NOT_NULL allocator, + VmaAllocation VMA_NOT_NULL allocation, + VkDeviceSize allocationLocalOffset, + const VkImageCreateInfo* VMA_NOT_NULL pImageCreateInfo, + VkImage VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pImage); + /** \brief Destroys Vulkan image and frees allocated memory. This is just a convenience function equivalent to: @@ -17180,9 +17219,20 @@ VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingBuffer( const VkBufferCreateInfo* VMA_NOT_NULL pBufferCreateInfo, VkBuffer VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pBuffer) { - VMA_ASSERT(allocator && pBufferCreateInfo && pBuffer && allocation); + return vmaCreateAliasingBuffer2(allocator, allocation, 0, pBufferCreateInfo, pBuffer); +} - VMA_DEBUG_LOG("vmaCreateAliasingBuffer"); +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingBuffer2( + VmaAllocator VMA_NOT_NULL allocator, + VmaAllocation VMA_NOT_NULL allocation, + VkDeviceSize allocationLocalOffset, + const VkBufferCreateInfo* VMA_NOT_NULL pBufferCreateInfo, + VkBuffer VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pBuffer) +{ + VMA_ASSERT(allocator && pBufferCreateInfo && pBuffer && allocation); + VMA_ASSERT(allocationLocalOffset + pBufferCreateInfo->size <= allocation->GetSize()); + + VMA_DEBUG_LOG("vmaCreateAliasingBuffer2"); *pBuffer = VK_NULL_HANDLE; @@ -17208,7 +17258,7 @@ VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingBuffer( if (res >= 0) { // 2. Bind buffer with memory. - res = allocator->BindBufferMemory(allocation, 0, *pBuffer, VMA_NULL); + res = allocator->BindBufferMemory(allocation, allocationLocalOffset, *pBuffer, VMA_NULL); if (res >= 0) { return VK_SUCCESS; @@ -17344,12 +17394,22 @@ VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingImage( VmaAllocation VMA_NOT_NULL allocation, const VkImageCreateInfo* VMA_NOT_NULL pImageCreateInfo, VkImage VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pImage) +{ + return vmaCreateAliasingImage2(allocator, allocation, 0, pImageCreateInfo, pImage); +} + +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingImage2( + VmaAllocator VMA_NOT_NULL allocator, + VmaAllocation VMA_NOT_NULL allocation, + VkDeviceSize allocationLocalOffset, + const VkImageCreateInfo* VMA_NOT_NULL pImageCreateInfo, + VkImage VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pImage) { VMA_ASSERT(allocator && pImageCreateInfo && pImage && allocation); *pImage = VK_NULL_HANDLE; - VMA_DEBUG_LOG("vmaCreateImage"); + VMA_DEBUG_LOG("vmaCreateImage2"); if (pImageCreateInfo->extent.width == 0 || pImageCreateInfo->extent.height == 0 || @@ -17371,7 +17431,7 @@ VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingImage( if (res >= 0) { // 2. Bind image with memory. - res = allocator->BindImageMemory(allocation, 0, *pImage, VMA_NULL); + res = allocator->BindImageMemory(allocation, allocationLocalOffset, *pImage, VMA_NULL); if (res >= 0) { return VK_SUCCESS;