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Add missing validation in copy_texture_to-Buffer. #2958

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merged 2 commits into from
Aug 13, 2022
Merged

Add missing validation in copy_texture_to-Buffer. #2958

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9c2faac
Add missing validation in copy_texture_to-Buffer.
nical Aug 12, 2022
f3287e5
Add an entry in the changelog.
nical Aug 12, 2022
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -113,6 +113,7 @@ the same every time it is rendered, we now warn if it is missing.
- Validate the number of color attachments in `create_render_pipeline` by @nical in [#2913](https://github.com/gfx-rs/wgpu/pull/2913)
- Validate against the maximum binding index in `create_bind_group_layout` by @nical in [#2892](https://github.com/gfx-rs/wgpu/pull/2892)
- Validate that map_async's range is not negative by @nical in [#2938](https://github.com/gfx-rs/wgpu/pull/2938)
- Validate the sample count and mip level in `copy_texture_to_buffer` by @nical in [#2958](https://github.com/gfx-rs/wgpu/pull/2958)

#### DX12
- `DownlevelCapabilities::default()` now returns the `ANISOTROPIC_FILTERING` flag set to true so DX12 lists `ANISOTROPIC_FILTERING` as true again by @cwfitzgerald in [#2851](https://github.com/gfx-rs/wgpu/pull/2851)
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17 changes: 17 additions & 0 deletions wgpu-core/src/command/transfer.rs
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Expand Up @@ -109,6 +109,10 @@ pub enum TransferError {
MemoryInitFailure(#[from] super::ClearError),
#[error("Cannot encode this copy because of a missing downelevel flag")]
MissingDownlevelFlags(#[from] MissingDownlevelFlags),
#[error("Source texture sample count must be 1, got {sample_count}")]
InvalidSampleCount { sample_count: u32 },
#[error("Requested mip level {requested} does no exist (count: {count})")]
InvalidMipLevel { requested: u32, count: u32 },
}

impl PrettyError for TransferError {
Expand Down Expand Up @@ -794,6 +798,19 @@ impl<G: GlobalIdentityHandlerFactory> Global<G> {
if !src_texture.desc.usage.contains(TextureUsages::COPY_SRC) {
return Err(TransferError::MissingCopySrcUsageFlag.into());
}
if src_texture.desc.sample_count != 1 {
return Err(TransferError::InvalidSampleCount {
sample_count: src_texture.desc.sample_count,
}
.into());
}
if source.mip_level >= src_texture.desc.mip_level_count {
return Err(TransferError::InvalidMipLevel {
requested: source.mip_level,
count: src_texture.desc.mip_level_count,
}
.into());
}
let src_barrier = src_pending.map(|pending| pending.into_hal(src_texture));

let (dst_buffer, dst_pending) = cmd_buf
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