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https://github.com/Traverse-Research/gpu-allocator
🦀 Memory allocator written in pure Rust for GPU memory in Vulkan and DirectX 12
https://github.com/Traverse-Research/gpu-allocator
allocator dx12 vulkan
Last synced: 4 months ago
JSON representation
🦀 Memory allocator written in pure Rust for GPU memory in Vulkan and DirectX 12
- Host: GitHub
- URL: https://github.com/Traverse-Research/gpu-allocator
- Owner: Traverse-Research
- License: apache-2.0
- Created: 2020-11-03T14:03:27.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2024-03-05T12:58:05.000Z (4 months ago)
- Last Synced: 2024-03-05T14:56:12.451Z (4 months ago)
- Topics: allocator, dx12, vulkan
- Language: Rust
- Homepage:
- Size: 11.1 MB
- Stars: 322
- Watchers: 10
- Forks: 41
- Open Issues: 22
-
Metadata Files:
- Readme: README.md
- License: LICENSE-APACHE
- Code of conduct: CODE_OF_CONDUCT.md
Lists
- programming-awesome-list - gpu-allocator - Memory allocator written in Rust for Vulkan and DX12 (Libraries & Frameworks: / Graphics)
- awesome-stars - Traverse-Research/gpu-allocator - 🦀 Memory allocator written in pure Rust for GPU memory in Vulkan and DirectX 12 (Rust)
README
# 📒 gpu-allocator
[](https://github.com/Traverse-Research/gpu-allocator/actions)
[](https://crates.io/crates/gpu-allocator)
[](https://docs.rs/gpu-allocator/)
[](LICENSE-MIT)
[](LICENSE-APACHE)
[](../main/CODE_OF_CONDUCT.md)
[](https://blog.rust-lang.org/2022/11/03/Rust-1.65.0.html)
[](https://traverseresearch.nl)
```toml
[dependencies]
gpu-allocator = "0.25.0"
```
This crate provides a fully written in Rust memory allocator for Vulkan, DirectX 12 and Metal.
## [Windows-rs] and [winapi]
`gpu-allocator` recently migrated from [winapi] to [windows-rs] but still provides convenient helpers to convert to and from [winapi] types, enabled when compiling with the `public-winapi` crate feature.
[Windows-rs]: https://github.com/microsoft/windows-rs
[winapi]: https://github.com/retep998/winapi-rs
## Setting up the Vulkan memory allocator
```rust
use gpu_allocator::vulkan::*;
let mut allocator = Allocator::new(&AllocatorCreateDesc {
instance,
device,
physical_device,
debug_settings: Default::default(),
buffer_device_address: true, // Ideally, check the BufferDeviceAddressFeatures struct.
allocation_sizes: Default::default(),
});
```
## Simple Vulkan allocation example
```rust
use gpu_allocator::vulkan::*;
use gpu_allocator::MemoryLocation;
// Setup vulkan info
let vk_info = vk::BufferCreateInfo::builder()
.size(512)
.usage(vk::BufferUsageFlags::STORAGE_BUFFER);
let buffer = unsafe { device.create_buffer(&vk_info, None) }.unwrap();
let requirements = unsafe { device.get_buffer_memory_requirements(buffer) };
let allocation = allocator
.allocate(&AllocationCreateDesc {
name: "Example allocation",
requirements,
location: MemoryLocation::CpuToGpu,
linear: true, // Buffers are always linear
allocation_scheme: AllocationScheme::GpuAllocatorManaged,
}).unwrap();
// Bind memory to the buffer
unsafe { device.bind_buffer_memory(buffer, allocation.memory(), allocation.offset()).unwrap() };
// Cleanup
allocator.free(allocation).unwrap();
unsafe { device.destroy_buffer(buffer, None) };
```
## Setting up the D3D12 memory allocator
```rust
use gpu_allocator::d3d12::*;
let mut allocator = Allocator::new(&AllocatorCreateDesc {
device: ID3D12DeviceVersion::Device(device),
debug_settings: Default::default(),
allocation_sizes: Default::default(),
});
```
## Simple d3d12 allocation example
```rust
use gpu_allocator::d3d12::*;
use gpu_allocator::MemoryLocation;
let buffer_desc = Direct3D12::D3D12_RESOURCE_DESC {
Dimension: Direct3D12::D3D12_RESOURCE_DIMENSION_BUFFER,
Alignment: 0,
Width: 512,
Height: 1,
DepthOrArraySize: 1,
MipLevels: 1,
Format: Dxgi::Common::DXGI_FORMAT_UNKNOWN,
SampleDesc: Dxgi::Common::DXGI_SAMPLE_DESC {
Count: 1,
Quality: 0,
},
Layout: Direct3D12::D3D12_TEXTURE_LAYOUT_ROW_MAJOR,
Flags: Direct3D12::D3D12_RESOURCE_FLAG_NONE,
};
let allocation_desc = AllocationCreateDesc::from_d3d12_resource_desc(
&allocator.device(),
&buffer_desc,
"Example allocation",
MemoryLocation::GpuOnly,
);
let allocation = allocator.allocate(&allocation_desc).unwrap();
let mut resource: Option = None;
let hr = unsafe {
device.CreatePlacedResource(
allocation.heap(),
allocation.offset(),
&buffer_desc,
Direct3D12::D3D12_RESOURCE_STATE_COMMON,
None,
&mut resource,
)
}?;
// Cleanup
drop(resource);
allocator.free(allocation).unwrap();
```
## Setting up the Metal memory allocator
```rust
use gpu_allocator::metal::*;
let mut allocator = Allocator::new(&AllocatorCreateDesc {
device: device.clone(),
debug_settings: Default::default(),
allocation_sizes: Default::default(),
});
```
## Simple Metal allocation example
```rust
use gpu_allocator::metal::*;
use gpu_allocator::MemoryLocation;
let allocation_desc = AllocationCreateDesc::buffer(
&device,
"Example allocation",
512, // size in bytes
gpu_allocator::MemoryLocation::GpuOnly,
);
let allocation = allocator.allocate(&allocation_desc).unwrap();
let resource = allocation.make_buffer().unwrap();
// Cleanup
drop(resource);
allocator.free(&allocation).unwrap();
```
## Minimum Supported Rust Version
The MSRV for this crate and the `vulkan`, `d3d12` and `metal` features is Rust 1.65. Any other features such as the `visualizer` (with all the `egui` dependencies) may have a higher requirement and are not tested in our CI.
## License
Licensed under either of
- Apache License, Version 2.0, ([LICENSE-APACHE](../master/LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license ([LICENSE-MIT](../master/LICENSE-MIT) or http://opensource.org/licenses/MIT)
at your option.
## Alternative libraries
- [vk-mem-rs](https://github.com/gwihlidal/vk-mem-rs)
## Contribution
Unless you explicitly state otherwise, any contribution intentionally
submitted for inclusion in the work by you, as defined in the Apache-2.0
license, shall be dual licensed as above, without any additional terms or
conditions.