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-rw-r--r--wgpu/src/buffer/static.rs107
1 files changed, 0 insertions, 107 deletions
diff --git a/wgpu/src/buffer/static.rs b/wgpu/src/buffer/static.rs
deleted file mode 100644
index d8ae116e..00000000
--- a/wgpu/src/buffer/static.rs
+++ /dev/null
@@ -1,107 +0,0 @@
-use bytemuck::{Pod, Zeroable};
-use std::marker::PhantomData;
-use std::mem;
-
-const DEFAULT_COUNT: wgpu::BufferAddress = 128;
-
-/// A generic buffer struct useful for items which have no alignment requirements
-/// (e.g. Vertex, Index buffers) & no dynamic offsets.
-#[derive(Debug)]
-pub struct Buffer<T> {
- //stored sequentially per mesh iteration; refers to the offset index in the GPU buffer
- offsets: Vec<wgpu::BufferAddress>,
- label: &'static str,
- usages: wgpu::BufferUsages,
- gpu: wgpu::Buffer,
- size: wgpu::BufferAddress,
- _data: PhantomData<T>,
-}
-
-impl<T: Pod + Zeroable> Buffer<T> {
- /// Initialize a new static buffer.
- pub fn new(
- device: &wgpu::Device,
- label: &'static str,
- usages: wgpu::BufferUsages,
- ) -> Self {
- let size = (mem::size_of::<T>() as u64) * DEFAULT_COUNT;
-
- Self {
- offsets: Vec::new(),
- label,
- usages,
- gpu: Self::gpu_buffer(device, label, size, usages),
- size,
- _data: PhantomData,
- }
- }
-
- fn gpu_buffer(
- device: &wgpu::Device,
- label: &'static str,
- size: wgpu::BufferAddress,
- usage: wgpu::BufferUsages,
- ) -> wgpu::Buffer {
- device.create_buffer(&wgpu::BufferDescriptor {
- label: Some(label),
- size,
- usage,
- mapped_at_creation: false,
- })
- }
-
- /// Returns whether or not the buffer needs to be recreated. This can happen whenever mesh data
- /// changes & a redraw is requested.
- pub fn resize(&mut self, device: &wgpu::Device, new_count: usize) -> bool {
- let size = (mem::size_of::<T>() * new_count) as u64;
-
- if self.size < size {
- self.size =
- (mem::size_of::<T>() * (new_count + new_count / 2)) as u64;
-
- self.gpu =
- Self::gpu_buffer(device, self.label, self.size, self.usages);
-
- self.offsets.clear();
- true
- } else {
- false
- }
- }
-
- /// Writes the current vertex data to the gpu buffer with a memcpy & stores its offset.
- ///
- /// Returns the size of the written bytes.
- pub fn write(
- &mut self,
- queue: &wgpu::Queue,
- offset: u64,
- content: &[T],
- ) -> u64 {
- let bytes = bytemuck::cast_slice(content);
- let bytes_size = bytes.len() as u64;
-
- queue.write_buffer(&self.gpu, offset, bytes);
- self.offsets.push(offset);
-
- bytes_size
- }
-
- fn offset_at(&self, index: usize) -> &wgpu::BufferAddress {
- self.offsets
- .get(index)
- .expect("Offset at index does not exist.")
- }
-
- /// Returns the slice calculated from the offset stored at the given index.
- /// e.g. to calculate the slice for the 2nd mesh in the layer, this would be the offset at index
- /// 1 that we stored earlier when writing.
- pub fn slice_from_index(&self, index: usize) -> wgpu::BufferSlice<'_> {
- self.gpu.slice(self.offset_at(index)..)
- }
-
- /// Clears any temporary data from the buffer.
- pub fn clear(&mut self) {
- self.offsets.clear()
- }
-}