Struct draw2d::graphics::vulkan::buffer::CpuBuffer

pub struct CpuBuffer { /* fields omitted */ }

A CPU-accessible buffer.

Data is allocated directly, so every instance of this buffer contributes to the driver-specified limit on the number of allocations supported by the device.

Implementations

impl CpuBuffer

pub fn new(device: Arc<Device>, usage: BufferUsageFlags) -> Result<Self>

Create an empty buffer which can be written from the CPU.

pub unsafe fn write_data<T>(&mut self, data: &[T]) -> Result<()> where
    T: Sized + Copy + Debug, 

Write the provided data into the vertex buffer.

Unsafe because this method can replace both the buffer and the backing memory. It is the responsibility of the application to ensure that neither resource is being used when this method is called.

No explicit flush is required because the memory is allocated as HOST_COHERENT.

pub unsafe fn write_data_arrays<T>(
    &mut self,
    data_arrays: &[&[T]]
) -> Result<()> where
    T: Sized + Copy + Debug, 

Trait Implementations

impl Buffer for CpuBuffer

unsafe fn raw(&self) -> Buffer

The raw buffer handle.

Can be invalidated on calls to write_data.

unsafe fn allocation(&self) -> &Allocation

The raw device memory handle.

Can be invalidated by calls to Self::write_data or Self::write_data_arrays.

fn size_in_bytes(&self) -> u64

The size of the data written on the last call to write_data.