mirror of
https://github.com/italicsjenga/ash-molten.git
synced 2024-12-23 21:31:30 +11:00
59 lines
2.5 KiB
Markdown
59 lines
2.5 KiB
Markdown
# 🌋 ash-molten
|
|
`ash-molten` is built on top of [ash](https://github.com/MaikKlein/ash) and exposes a new entry point to statically link with [MoltenVK](https://github.com/KhronosGroup/MoltenVK).
|
|
|
|
## Why?
|
|
|
|
* You want to compile down to a single binary that doesn't need any enviroment variables to bet set.
|
|
|
|
* You just want to try out [MoltenVK](https://github.com/KhronosGroup/MoltenVK) without needing to setup the SDK.
|
|
|
|
## Why not?
|
|
|
|
* [ash](https://github.com/MaikKlein/ash) already supports [MoltenVK](https://github.com/KhronosGroup/MoltenVK) via runtime linking. Runtime linking is the prefered way of using Vulkan because the loader can be updated at anytime without needing to recompile.
|
|
|
|
* `ash-molten` doesn't have access to the validation layers and thefore can not output any debug information.
|
|
|
|
## How?
|
|
```Rust
|
|
let entry = ash_molten::MoltenEntry::load().expect("Unable to load Molten");
|
|
let app_name = CString::new("Hello Static Molten").unwrap();
|
|
|
|
let appinfo = vk::ApplicationInfo::builder()
|
|
.application_name(&app_name)
|
|
.application_version(0)
|
|
.engine_name(&app_name)
|
|
.engine_version(0)
|
|
.api_version(vk_make_version!(1, 0, 0));
|
|
|
|
let create_info = vk::InstanceCreateInfo::builder().application_info(&appinfo);
|
|
let instance = entry.create_instance(&create_info, None).expect("Instance");
|
|
let devices = instance.enumerate_physical_devices();
|
|
println!("{:?}", devices);
|
|
```
|
|
You can run the example with `cargo run`.
|
|
|
|
## How does it work?
|
|
|
|
`ash-molten` links statically with [MoltenVK](https://github.com/KhronosGroup/MoltenVK), it then uses `vkGetInstanceProcAddr` to resolve all the function pointers at runtime.
|
|
|
|
### Features
|
|
|
|
`cargo build` will clone the newest master of [MoltenVK](https://github.com/KhronosGroup/MoltenVK) compile and statically link it with your application.
|
|
If you want to compile [MoltenVK](https://github.com/KhronosGroup/MoltenVK) yourself, you can use the `external` feature. `cargo build --features external` requires `libMoltenVK` to be visible (`LD_LIBRARY_PATH`).
|
|
|
|
## License
|
|
|
|
Licensed under either of
|
|
|
|
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
|
|
* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
|
|
|
|
at your option.
|
|
|
|
### 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.
|