github/wgpu
1
1
Fork 0
mirror of https://github.com/gfx-rs/wgpu.git synced 2026-04-22 03:02:01 -04:00
Code Issues Packages Projects Releases Wiki Activity

[rs] Merge #462

Browse Source 
462: create_buffer_with_data automatically handles its own alignment requirements r=kvark a=rukai

closes https://github.com/gfx-rs/wgpu-rs/issues/449

Does write_buffer/write_texture need similar handling?

Co-authored-by: Rukai <rubickent@gmail.com>
This commit is contained in:
bors[bot]
2020-07-21 15:36:00 +00:00
committed by GitHub
parent 5001e86bdd 44f04fb734
commit fcb39a1de6
1 changed files with 13 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
wgpu/src/lib.rs
View File

@@ -1233,15 +1233,24 @@ impl Device {
/// Creates a new buffer, maps it into host-visible memory, copies data from the given slice,
/// and finally unmaps it, returning a [`Buffer`].
pub fn create_buffer_with_data(&self, data: &[u8], usage: BufferUsage) -> Buffer {
let size = data.len() as u64;
let align = COPY_BUFFER_ALIGNMENT;
let unpadded_size = data.len() as u64;
let padding = (align - unpadded_size % align) % align;
let padded_size = unpadded_size + padding;
let buffer = self.create_buffer(&BufferDescriptor {
label: None,
size,
size: padded_size,
usage,
mapped_at_creation: true,
});
Context::buffer_get_mapped_range_mut(&*self.context, &buffer.id, 0..size)
.copy_from_slice(data);
let range = Context::buffer_get_mapped_range_mut(&*self.context, &buffer.id, 0..padded_size);
range[0..unpadded_size as usize].copy_from_slice(&data);
for i in unpadded_size..padded_size {
range[i as usize] = 0;
}
buffer.unmap();
buffer
}