Struct Vulkan 

struct Vulkan {
    _lib: Library,
    instance: *mut c_void,
    enumerate: unsafe extern "C" fn(*mut c_void, *mut u32, *mut *mut c_void) -> i32,
    properties: unsafe extern "C" fn(*mut c_void, *mut PhysicalDeviceProperties2),
    create_device: unsafe extern "C" fn(*mut c_void, *const DeviceCreateInfo, *const c_void, *mut *mut c_void) -> i32,
    get_device_proc: unsafe extern "C" fn(*mut c_void, *const c_char) -> Option<unsafe extern "C" fn()>,
}

The Vulkan loader and the one instance every semaphore’s device is made from, kept for the life of the process. NVIDIA’s driver leaves a /dev/nvidiactl and a render-node descriptor open for every instance it destroys while DISPLAY names an X server without NV-GLX, as the images’ Xvfb is, so an instance per capture start runs a server that streams to reconnecting clients out of descriptors; the devices made from a kept instance are destroyed without leaking any.

Fields

_lib: Library

instance: *mut c_void

enumerate: unsafe extern "C" fn(*mut c_void, *mut u32, *mut *mut c_void) -> i32

properties: unsafe extern "C" fn(*mut c_void, *mut PhysicalDeviceProperties2)

create_device: unsafe extern "C" fn(*mut c_void, *const DeviceCreateInfo, *const c_void, *mut *mut c_void) -> i32

get_device_proc: unsafe extern "C" fn(*mut c_void, *const c_char) -> Option<unsafe extern "C" fn()>

Implementations

impl Vulkan

fn get() -> Result<&'static Vulkan, String>

The process’s instance, made by the first call; a host whose loader or driver refused it gets the same refusal every time.

unsafe fn open() -> Result<Self, String>

Load the loader and create the instance, with no layers or extensions.

Safety

libvulkan.so.1 has to be the Vulkan loader, whose exported entry points have the signatures this module declares.

Trait Implementations

impl Send for Vulkan

impl Sync for Vulkan