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Merge #595

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595: Derive swapchain layout off the load operation r=kvark a=kvark

Fixes https://github.com/gfx-rs/wgpu-rs/issues/258

It's fairly simple. We expect there to be exactly one `LoadOp::Clear` for the swapchain attachment, and for it to be the first pass in a frame using it. Any other passes need to do `LoadOp::Load`.

Co-authored-by: Dzmitry Malyshau <kvarkus@gmail.com>
This commit is contained in:
bors[bot]
2020-04-17 04:01:08 +00:00
committed by GitHub
parent 6b0751f1f8 8eefe269c1
commit 4bf3d57bb5
1 changed files with 4 additions and 10 deletions
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14
wgpu-core/src/command/render.rs
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@@ -486,9 +486,9 @@ impl<G: GlobalIdentityHandlerFactory> Global<G> {
}
let end = hal::image::Layout::Present;
let start = match base_trackers.views.query(at.attachment, ()) {
Some(_) => end,
None => hal::image::Layout::Undefined,
let start = match at.load_op {
LoadOp::Clear => hal::image::Layout::Undefined,
LoadOp::Load => end,
};
start..end
}
@@ -536,13 +536,7 @@ impl<G: GlobalIdentityHandlerFactory> Global<G> {
assert!(used_swap_chain.is_none());
used_swap_chain = Some(source_id.clone());
}
let end = hal::image::Layout::Present;
let start = match base_trackers.views.query(resolve_target, ()) {
Some(_) => end,
None => hal::image::Layout::Undefined,
};
start..end
hal::image::Layout::Undefined..hal::image::Layout::Present
}
};