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https://github.com/jakoch/rasterizers

Precompiled libraries for the software rasterizers Mesa's LLVMpipe and Google's Swiftshader for Windows.
https://github.com/jakoch/rasterizers

llvmpipe mesa mesa3d rasterizer swiftshader swrast vulkan vulkan-sdk

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Precompiled libraries for the software rasterizers Mesa's LLVMpipe and Google's Swiftshader for Windows.

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## jakoch/rasterizers [![Build on Windows: Mesa llvmpipe](https://github.com/jakoch/rasterizers/actions/workflows/build-mesa.yml/badge.svg?branch=main)](https://github.com/jakoch/rasterizers/actions/workflows/build-mesa.yml) [![Build on Windows: Swiftshader](https://github.com/jakoch/rasterizers/actions/workflows/build-swiftshader.yml/badge.svg?branch=main)](https://github.com/jakoch/rasterizers/actions/workflows/build-swiftshader.yml)



#### What is this?



This repository automates the process of building and releasing ready-to-use

drivers for Windows of two software rasterizers: Mesa's LLVMmpipe and

Google's Swiftshader.



Both rasterizers are designed to enable rendering in CPU environments,

which is particularly valuable in CI (Continuous Integration) systems for

automated testing and validation of graphics applications.



The purpose of this repository is to build these drivers for integration with

[jakoch/install-vulkan-sdk-action](https://github.com/jakoch/install-vulkan-sdk-action),

which automates the installation of the Vulkan SDK during GitHub Action CI runs.

By integrating the software rasterizers from this repository,

developers can effectively test their Vulkan software on GitHub Action CI.



The drivers are compiled using GitHub Actions CI, ensuring automated

compilation, and distributed through GitHub Releases, providing a standardized

download mechanism for developers.



#### What is a Software Rasterizer?



A software rasterizer is a software-based implementation of a graphics

rendering pipeline that executes entirely on the CPU, without relying on

dedicated GPU hardware acceleration. It performs tasks such as vertex

processing, primitive assembly, rasterization (converting geometric shapes

into pixels), and pixel shading entirely through software algorithms and

CPU computations.



### What is Mesa LLVMmpipe?



[Mesa's LLVMmpipe](https://docs.mesa3d.org/drivers/llvmpipe.html) is a component of the Mesa 3D Graphics Library. It uses the

LLVM compiler infrastructure to perform rendering tasks on the CPU, offering

a flexible and robust solution for environments lacking dedicated GPU hardware.



#### What is Swiftshader?



[Swiftshader](https://github.com/google/swiftshader), developed by Google, delivers a high-performance CPU-based

implementation of the Vulkan and OpenGL ES APIs, ensuring graphics rendering

on systems without GPU acceleration.



#### Why does this repo exist?



1. Neither project offers precompiled binaries.

2. Various precompiled libraries from anonymous users are available on GitHub,

   but they lack regular updates and, more importantly, CI builds.

3. I needed a reliable download source for integration into my

   [jakoch/install-vulkan-sdk-action](https://github.com/jakoch/install-vulkan-sdk-action).



According to Mesa's documentation:



> In general, precompiled Mesa libraries are not available.



Referencing [Mesa Documentation on Precompiled Libraries](https://docs.mesa3d.org/precompiled.html).



#### Links



##### Mesa



- Website: https://mesa3d.org

- Documentation: https://docs.mesa3d.org/

- Issue Tracker: https://issuetracker.google.com/issues?q=componentid:408190&pli=1

- Main Repository: https://gitlab.freedesktop.org/mesa/mesa/

- Demos: https://gitlab.freedesktop.org/mesa/demos



##### Swiftshader



- Main Repository: https://swiftshader.googlesource.com/SwiftShader

- Github Mirror: https://github.com/google/swiftshader