f67771fb87
777: Implement PUSH_CONSTANTS feature r=kvark a=cwfitzgerald **Connections** Closes #734. Makes minor progress on #689. **Description** This one is a doozy. Implements Push Constant support in wgpu. Implementation Notes: - Push constants are unconditionally cleared on change to a pipeline with a different pipeline layout. This could be elided in a future revision, possibly making push constants slightly faster on non-vulkan platforms. - This exposes basically a direct port of vulkan push constants to wgpu. There might be design decisions that would want to be changed for an upstream webgpu implementation. Code Notes: - The render bundle code needs to be heavily scrutinized because I wasn't able to test it and it requires pipeline invalidation. - Validation should be correct as I have tested it pretty throughly, but there are a lot of factors involved, so I could have accidentally missed something (or not allowed something I should have). Other Work: - `PipelineLayoutDescriptor` was moved into wgt from wgpu-rs with a generic. **Testing** I have modified the wgpu-rs example to use push constants for its uniform fallback, which is a perfect use case for push constants. I have not tested compute constants, but I expect no issues with them. https://github.com/gfx-rs/wgpu-rs/pull/435 Co-authored-by: Connor Fitzgerald <connorwadefitzgerald@gmail.com>
This is an active GitHub mirror of the WebGPU implementation in Rust, which now lives in "gfx/wgpu" of Mozilla-central. Issues and pull requests are accepted, but some bidirectional synchronization may be involved.
WebGPU
This is the core logic of an experimental WebGPU implementation. It's written in Rust and is based on gfx-hal with help of gfx-extras. See the upstream WebGPU specification (work in progress).
The implementation consists of the following parts:
- internal Rust API for WebGPU implementations to use
- Rust types shared between wgpu-core,wgpu-native, andwgpu-rsplayer- standalone application for replaying the API traces, useswinit
This repository contains the core of wgpu, and is not usable directly by applications.
If you are looking for the user-facing Rust API, you need wgpu-rs.
If you are looking for the native implementation or bindings to the API in other languages, you need wgpu-native.
Supported Platforms
| API | Windows 7/10 | Linux & Android | macOS & iOS |
|---|---|---|---|
| DX11 | ✅ | ||
| DX12 | ✔️ | ||
| Vulkan | ✔️ | ✔️ | |
| Metal | ✔️ | ||
| OpenGL | 🚧 | 🚧 | 🚧 |
✔️ = Primary support — ✅ = Secondary support — 🚧 = Unsupported, but support in progress