Direct3D®12 Memory Allocator
The industry-leading, open source, memory allocation library for the DirectX®12 API.
The D3D12 Memory Allocator (D3D12MA) is a C++ library that provides a simple and easy-to-integrate API to help you allocate memory for DirectX®12 buffers and textures.
Download the latest version - v2.0.0
*We recommend using the code from the master branch.
This release adds the following features:
- Powerful custom pools, which give an opportunity to not only keep certain resources together, reserve some minimum or limit the maximum amount of memory they can take, but also to pass additional allocation parameters unavailable to simple allocations. Among them, probably the most interesting is
POOL_DESC::HeapProperties, which allows you to specify parameters of a custom memory type, which may be useful on UMA platforms. Committed allocations can now also be created in custom pools.
- The API for statistics and budget has been redesigned – see structures Statistics, Budget, DetailedStatistics, TotalStatistics.
- The library exposes its core allocation algorithm via the “virtual allocator” interface. This can be used to allocate pieces of custom memory or whatever you like, even something completely unrelated to graphics.
- The allocation algorithm has been replaced with the new, more efficient TLSF.
- Added support for defragmentation.
- Objects of the library can be used with smart pointers designed for COM objects.
This library can help developers to manage memory allocations and resource creation by offering function
similar to the standard
- Allocates and keeps track of bigger memory heaps, used and unused ranges inside them, finds best matching unused ranges to create new resources there as placed resources.
- Automatically respects size and alignment requirements for created resources.
- Automatically handles resource heap tier – whether it’s
D2D12_RESOURCE_HEAP_TIER_1that requires to keep certain classes of resources separate or
D3D12_RESOURCE_HEAP_TIER_2that allows to keep them all together.
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