Multi-Arch Docker - Mesa 3D OpenGL Software Rendering (Gallium) - LLVMpipe, and OpenSWR Drivers

About

Minimal Docker container bundled with the Mesa 3D Gallium Drivers: LLVMpipe & OpenSWR, enabling OpenGL support inside a Docker container without the need for a GPU.

Features

• Alpine Linux 3.12
• LLVMpipe Driver (Mesa 20.0.6)
• OpenSWR Driver (Mesa 20.0.6)
• OSMesa Interface (Mesa 20.0.6)
• softpipe - Reference Gallium software driver
• swrast - Legacy Mesa software rasterizer
• Xvfb - X Virtual Frame Buffer

Docker Images

Please note there are images available for Alpine versions 3.10, 3.11 as well. Please see all available tags on DockerHub

Image	Description	Architectures	Base Image
utensils/opengl:latest	Latest Mesa version	amd64, 386, arm64, arm/v7	alpine:3.12
utensils/opengl:stable	Stable Mesa version (Personally Tested)	amd64, 386, arm64, arm/v7	alpine:3.12
utensils/opengl:20.0.6	Mesa version 20.0.6	amd64, 386, arm64, arm/v7	alpine:3.12
utensils/opengl:19.0.8	Mesa version 19.0.8	amd64	alpine:3.10
utensils/opengl:18.3.6	Mesa version 18.3.6	amd64	alpine:3.10
utensils/opengl:18.2.8	Mesa version 18.2.8	amd64	alpine:3.10

Building

This image can be built locally using the supplied Makefile

Make default image (stable):

make

Make latest image:

make latest

Make all images:

make all

Usage

This image is intended to be used as a base image to extend from. One good example of this is the Envisaged project which allows for quick and easy Gource visualizations from within a Docker container.

Extending from this image.

FROM utensils/opengl:20.0.6
COPY ./MyAppOpenGLApp /AnywhereMyHeartDesires
RUN apk add --update my-deps...

Environment Variables

The following environment variables are present to modify rendering options.

High level settings

Variable	Default Value	Description
XVFB_WHD	1920x1080x24	Xvfb demensions and bit depth.
DISPLAY	:99	X Display number.
LIBGL_ALWAYS_SOFTWARE	1	Forces Mesa 3D to always use software rendering.
GALLIUM_DRIVER	llvmpipe	Sets OpenGL Driver llvmpipe, swr, softpipe, and swrast

Lower level settings / tweaks

Variable	Default Value	Description
LP_NO_RAST	false	LLVMpipe - If set LLVMpipe will no-op rasterization
LP_DEBUG	""	LLVMpipe - A comma-separated list of debug options is accepted
LP_PERF	""	LLVMpipe - A comma-separated list of options to selectively no-op various parts of the driver.
LP_NUM_THREADS	""	LLVMpipe - An integer indicating how many threads to use for rendering. Zero (0) turns off threading completely. The default value is the number of CPU cores present.