1c5b01ed15
This change vendors `wgpu` library in-tree and hooks up the initialization bits. It implements adapter and device initialization and adds a simple test. Complementary ecosystem tracker - https://github.com/gfx-rs/wgpu/issues/374 Current status: - [x] General - [x] figure out the IPC story - [ ] move wgpu crates into a dedicated folder (postponed as https://bugzilla.mozilla.org/show_bug.cgi?id=1594182) - [x] neko rebasing disaster - [x] Linux - [x] avoid depending on spirv_cross - [x] macOS - [x] due to cross-compiling shaders - [x] need the dependency update - [x] stop using gcc - [x] unexpected SSL header collision - https://phabricator.services.mozilla.com/D51148 - [x] undefined Metal symbols - [x] missing webrtc headers for IPDL magic - https://phabricator.services.mozilla.com/D51558 - [x] spirv-cross linking failure in ASAN - https://phabricator.services.mozilla.com/D52688 - [x] Windows - [x] due to "ipc-channel" not supporting Windows yet - [x] due to some exceptional stuff - [x] undefined symbol: `D3D12CreateDevice` - [x] d3d12.dll is not found, dxgi1_4 doesn't present - [x] d3d11.dll and dxgi.dll need to be explicitly loaded on win32 mingw - [x] libbacktrace fails to link on win32 mingw - [x] cc mislinking C++ standard library - [x] Android - [x] spirv-cross fails to build due to exceptions Update-1: We decided to go with IPDL mechanism instead of Rust based ipc-channel (or any alternatives), which unblocks Windows build. Update-2: It appears that WebGPUThreading isn't needed any more as the child thread (and its event loop) is now managed by IPDL infrastructure. This PR removes it 🎉 . Update-3: InstanceProvider is also removed. Update-4: All set, the try is green, waiting for dependent changes to go in. Differential Revision: https://phabricator.services.mozilla.com/D49458 --HG-- rename : dom/webgpu/Adapter.cpp => dom/webgpu/ipc/WebGPUTypes.h rename : third_party/rust/blake2b_simd/Cargo.toml => third_party/rust/ash/Cargo.toml rename : third_party/rust/uluru/Cargo.toml => third_party/rust/atom/Cargo.toml rename : third_party/rust/core-graphics/Cargo.toml => third_party/rust/cocoa/Cargo.toml rename : third_party/rust/crossbeam-deque/LICENSE-MIT => third_party/rust/cocoa/LICENSE-MIT rename : third_party/rust/core-graphics/src/lib.rs => third_party/rust/cocoa/src/lib.rs rename : third_party/rust/uluru/Cargo.toml => third_party/rust/colorful/Cargo.toml rename : third_party/rust/uluru/Cargo.toml => third_party/rust/copyless/Cargo.toml rename : third_party/rust/crossbeam-utils/.cargo-checksum.json => third_party/rust/crossbeam-utils-0.6.5/.cargo-checksum.json rename : third_party/rust/crossbeam-utils/CHANGELOG.md => third_party/rust/crossbeam-utils-0.6.5/CHANGELOG.md rename : third_party/rust/crossbeam-utils/Cargo.toml => third_party/rust/crossbeam-utils-0.6.5/Cargo.toml rename : third_party/rust/crossbeam-deque/LICENSE-MIT => third_party/rust/crossbeam-utils-0.6.5/LICENSE-MIT rename : third_party/rust/crossbeam-utils/README.md => third_party/rust/crossbeam-utils-0.6.5/README.md rename : third_party/rust/crossbeam-utils/benches/atomic_cell.rs => third_party/rust/crossbeam-utils-0.6.5/benches/atomic_cell.rs rename : third_party/rust/crossbeam-utils/src/atomic/atomic_cell.rs => third_party/rust/crossbeam-utils-0.6.5/src/atomic/atomic_cell.rs rename : third_party/rust/crossbeam-utils/src/atomic/mod.rs => third_party/rust/crossbeam-utils-0.6.5/src/atomic/mod.rs rename : third_party/rust/crossbeam-utils/src/backoff.rs => third_party/rust/crossbeam-utils-0.6.5/src/backoff.rs rename : third_party/rust/crossbeam-utils/src/cache_padded.rs => third_party/rust/crossbeam-utils-0.6.5/src/cache_padded.rs rename : third_party/rust/crossbeam-utils/src/lib.rs => third_party/rust/crossbeam-utils-0.6.5/src/lib.rs rename : third_party/rust/crossbeam-utils/src/thread.rs => third_party/rust/crossbeam-utils-0.6.5/src/thread.rs rename : third_party/rust/crossbeam-utils/tests/atomic_cell.rs => third_party/rust/crossbeam-utils-0.6.5/tests/atomic_cell.rs rename : third_party/rust/crossbeam-utils/tests/parker.rs => third_party/rust/crossbeam-utils-0.6.5/tests/parker.rs rename : third_party/rust/crossbeam-utils/tests/sharded_lock.rs => third_party/rust/crossbeam-utils-0.6.5/tests/sharded_lock.rs rename : third_party/rust/crossbeam-utils/tests/thread.rs => third_party/rust/crossbeam-utils-0.6.5/tests/thread.rs rename : third_party/rust/blake2b_simd/Cargo.toml => third_party/rust/gfx-auxil/Cargo.toml rename : third_party/rust/blake2b_simd/Cargo.toml => third_party/rust/gfx-backend-empty/Cargo.toml rename : third_party/rust/blake2b_simd/Cargo.toml => third_party/rust/hibitset/Cargo.toml rename : third_party/rust/crossbeam-deque/LICENSE-MIT => third_party/rust/hibitset/LICENSE-MIT rename : third_party/rust/crossbeam-deque/LICENSE-MIT => third_party/rust/metal/LICENSE-MIT rename : third_party/rust/uluru/Cargo.toml => third_party/rust/range-alloc/Cargo.toml rename : third_party/rust/blake2b_simd/Cargo.toml => third_party/rust/raw-window-handle/Cargo.toml rename : third_party/rust/blake2b_simd/Cargo.toml => third_party/rust/relevant/Cargo.toml rename : third_party/rust/crossbeam-deque/LICENSE-MIT => third_party/rust/relevant/LICENSE-MIT rename : third_party/rust/blake2b_simd/Cargo.toml => third_party/rust/rendy-descriptor/Cargo.toml rename : third_party/rust/uluru/Cargo.toml => third_party/rust/shared_library/Cargo.toml rename : third_party/rust/crossbeam-deque/LICENSE-MIT => third_party/rust/shared_library/LICENSE-MIT rename : third_party/rust/blake2b_simd/Cargo.toml => third_party/rust/storage-map/Cargo.toml rename : third_party/rust/core-graphics/Cargo.toml => third_party/rust/x11/Cargo.toml extra : moz-landing-system : lando |
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.. | ||
src | ||
.cargo-checksum.json | ||
bors.toml | ||
Cargo.toml | ||
CHANGELOG.md | ||
LICENSE | ||
README.md | ||
rustfmt.toml |
copyless
Rust abstractions can be zero cost in theory, but often reveal quite a few unnecessary memcpy
calls in practice. This library provides a number of trait extensions for standard containers that expose API that is more friendly to LLVM optimization passes and doesn't end up with as many copies.
It aims to accelerate WebRender and gfx-rs.
Background
The memcpy
instructions showed in profiles of WebRender running in Gecko. @jrmuizel built a tool called memcpy-find that analyzes LLVM IR and spews out the call stacks that end up producing memcpy
instructions. We figured out a way to convince the compiler to eliminate the copies. This library attempts to make these ways available to Rust ecosystem, at least until the compiler gets smart enough ;)
Here is a small example
use copyless::BoxHelper;
enum Foo {
Small(i8),
Big([f32; 100]),
}
#[inline(never)]
fn foo() -> Box<Foo> {
Box::new(Foo::Small(4)) // this has 1 memcopy
//Box::alloc().init(Foo::Small(4)) // this has 0 memcopies
}
fn main() {
let z = foo();
println!("{:?}", &*z as *const _);
}
Playground permalink.