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use crate::*;
impl BufferHandler {
#[inline(always)]
pub fn from_slice<T: Sized + Pod + Zeroable, A: AsRef<[T]>>(
vec: &A,
device: &Device,
usage: BufferUsages,
) -> Self {
let buffer = device.create_buffer_init(&BufferInitDescriptor {
contents: bytemuck::cast_slice(vec.as_ref()),
usage,
label: None,
});
let stride = std::mem::size_of::<T>() as u64;
let size = vec.as_ref().len() as u64 * stride;
BufferHandler {
buffer,
size,
stride,
}
}
#[inline(always)]
pub const fn buffer(&self) -> &Buffer { &self.buffer }
#[inline(always)]
pub const fn size(&self) -> u64 { self.size }
#[inline(always)]
pub const fn binding_resource(&self) -> BindingResource<'_> {
BindingResource::Buffer(BufferBinding {
buffer: &self.buffer,
offset: 0,
size: None,
})
}
#[inline(always)]
pub fn copy_buffer(&self, encoder: &mut CommandEncoder, dest: &BufferHandler) {
assert!(
self.size < dest.size,
"The destination buffer size must be shorter than the source buffer size."
);
encoder.copy_buffer_to_buffer(&self.buffer, 0, &dest.buffer, 0, self.size);
}
}