Files
wgpu/wgpu
Dmitry Sharshakov 70db03dc99 Use EGL surfaceless platform when windowing system is not found (#2339)
* Use EGL surfaceless platform when windowing system is not found

Falling back to egl::DEFAULT_DISPLAY usually results in X11 EGL platform being picked and then rejected because of unavailability on a head/GPU-less system. EGL_PLATFORM_SURFACELESS_MESA works with both radeonsi and llvmpipe/swrast when Xorg/Wayland sockets are being hidden from application. Needs to be tested in a truly GPU-less environment such as CI it is required to run in. Addresses #1551

Signed-off-by: Dmitry Sharshakov <d3dx12.xx@gmail.com>

* Set backend for capture by environment variables

Useful for testing surfaceless

Signed-off-by: Dmitry Sharshakov <d3dx12.xx@gmail.com>

* Check for EGL_MESA_platform_surfaceless extension before using surfaceless platform

Signed-off-by: Dmitry Sharshakov <d3dx12.xx@gmail.com>

* Format

Signed-off-by: Dmitry Sharshakov <d3dx12.xx@gmail.com>

* Unify types for GLES config tiers

Signed-off-by: Dmitry Sharshakov <d3dx12.xx@gmail.com>

* Remove red.png

Signed-off-by: Dmitry Sharshakov <d3dx12.xx@gmail.com>

* Enable GL backend for CI

* Bump outliers count for skybox_etc2 due to llvmpipe test (102)

* Add SURFACE_TYPE PBUFFER_BIT requirement to off-screen surface tier

* Re-nix GL Backend on CI

Co-authored-by: Connor Fitzgerald <connorwadefitzgerald@gmail.com>
2022-02-19 05:21:05 +00:00
..
2022-02-18 23:24:18 -05:00
2022-02-18 23:24:18 -05:00

wgpu-rs is an idiomatic Rust wrapper over wgpu-core. It's designed to be suitable for general purpose graphics and computation needs of Rust community.

wgpu-rs can target both the natively supported backends and WASM directly.

See our gallery and the wiki page for the list of libraries and applications using wgpu-rs.

Usage

How to Run Examples

All examples are located under the examples directory.

These examples use the default syntax for running examples, as found in the Cargo documentation. For example, to run the cube example:

cargo run --example cube

The hello* examples show bare-bones setup without any helper code. For hello-compute, pass 4 numbers separated by spaces as arguments:

cargo run --example hello-compute 1 2 3 4

The following environment variables can be used to configure how the framework examples run:

  • WGPU_BACKEND

    Options: vulkan, metal, dx11, dx12, gl, webgpu

    If unset a default backend is chosen based on what is supported by your system.

  • WGPU_POWER_PREF

    Options: low, high

    If unset a low power adapter is preferred.

  • WGPU_ADAPTER_NAME

    Select a specific adapter by specifying a substring of the adapter name.

Run Examples on the Web (wasm32-unknown-unknown)

See wiki article.

Shaders

WGSL is the main shading language of WebGPU.

Users can run the naga binary in the following way to convert their SPIR-V shaders to WGSL:

cargo run -- <input.spv> <output.wgsl>

In addition, SPIR-V can be used by enabling the spirv feature and GLSL can be enabled by enabling the glsl feature at the cost of slightly increased build times.