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"start_offset_and_size"

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This commit is contained in:
Sven Niederberger 2025-07-14 20:15:56 +02:00
parent 377083ec9a
commit 1f3cd9d4c7
1 changed files with 10 additions and 10 deletions
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20
crates/bevy_render/src/gpu_readback.rs
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@ -79,7 +79,7 @@ pub enum Readback {
Texture(Handle<Image>),
Buffer {
buffer: Handle<ShaderStorageBuffer>,
start_and_size: Option<(u64, u64)>,
start_offset_and_size: Option<(u64, u64)>,
},
}
@ -93,16 +93,16 @@ impl Readback {
pub fn buffer(buffer: Handle<ShaderStorageBuffer>) -> Self {
Self::Buffer {
buffer,
start_and_size: None,
start_offset_and_size: None,
}
}
/// Create a readback component for a buffer range using the given handle, a start offset in bytes
/// and a number of bytes to read.
pub fn buffer_range(buffer: Handle<ShaderStorageBuffer>, start: u64, size: u64) -> Self {
pub fn buffer_range(buffer: Handle<ShaderStorageBuffer>, start_offset: u64, size: u64) -> Self {
Self::Buffer {
buffer,
start_and_size: Some((start, size)),
start_offset_and_size: Some((start_offset, size)),
}
}
}
@ -209,7 +209,7 @@ enum ReadbackSource {
},
Buffer {
buffer: Buffer,
start_and_size: Option<(u64, u64)>,
start_offset_and_size: Option<(u64, u64)>,
},
}
@ -282,11 +282,11 @@ fn prepare_buffers(
}
Readback::Buffer {
buffer,
start_and_size,
start_offset_and_size,
} => {
if let Some(ssbo) = ssbos.get(buffer) {
let full_size = ssbo.buffer.size();
let size = start_and_size
let size = start_offset_and_size
.map(|(start, size)| {
let end = start + size;
if end > full_size {
@ -303,7 +303,7 @@ fn prepare_buffers(
readbacks.requested.push(GpuReadback {
entity: entity.id(),
src: ReadbackSource::Buffer {
start_and_size: *start_and_size,
start_offset_and_size: *start_offset_and_size,
buffer: ssbo.buffer.clone(),
},
buffer,
@ -336,9 +336,9 @@ pub(crate) fn submit_readback_commands(world: &World, command_encoder: &mut Comm
}
ReadbackSource::Buffer {
buffer,
start_and_size,
start_offset_and_size,
} => {
let (src_start, size) = start_and_size.unwrap_or((0, buffer.size()));
let (src_start, size) = start_offset_and_size.unwrap_or((0, buffer.size()));
command_encoder.copy_buffer_to_buffer(buffer, src_start, &readback.buffer, 0, size);
}
}